JP5480655B2 - Heat source water supply system - Google Patents

Heat source water supply system Download PDF

Info

Publication number
JP5480655B2
JP5480655B2 JP2010027935A JP2010027935A JP5480655B2 JP 5480655 B2 JP5480655 B2 JP 5480655B2 JP 2010027935 A JP2010027935 A JP 2010027935A JP 2010027935 A JP2010027935 A JP 2010027935A JP 5480655 B2 JP5480655 B2 JP 5480655B2
Authority
JP
Japan
Prior art keywords
heat
heat source
source water
temperature
solar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2010027935A
Other languages
Japanese (ja)
Other versions
JP2011163680A (en
Inventor
秀樹 山口
喜徳 久角
義通 木内
輝 森田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osaka Gas Co Ltd
Original Assignee
Osaka Gas Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osaka Gas Co Ltd filed Critical Osaka Gas Co Ltd
Priority to JP2010027935A priority Critical patent/JP5480655B2/en
Publication of JP2011163680A publication Critical patent/JP2011163680A/en
Application granted granted Critical
Publication of JP5480655B2 publication Critical patent/JP5480655B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies

Landscapes

  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Description

本発明は、熱源装置にて加熱された熱源水を複数の熱需要家に順に供給して前記熱源装置に戻す熱源水循環ラインを備え、各熱需要家には、前記熱源水循環ラインから熱源水を取り込んでその取り込んだ熱源水を前記熱源水循環ラインの取り込み箇所よりも熱源水の流れ方向の下流側に戻すとともに、取り込んだ熱源水を利用して熱消費部への熱供給を行う熱供給装置が備えられている熱源水供給システムに関する。   The present invention includes a heat source water circulation line that sequentially supplies heat source water heated by a heat source device to a plurality of heat consumers and returns the heat source water to the heat source device, and each heat consumer receives heat source water from the heat source water circulation line. A heat supply device that takes in the heat source water that has been taken in and returns the heat source water to the downstream side in the flow direction of the heat source water from the intake location of the heat source water circulation line, and supplies heat to the heat consuming section using the taken heat source water. The present invention relates to a heat source water supply system provided.

上記のような熱源水供給システムは、例えば、熱需要家である各家庭にて給湯や暖房等の熱消費部への熱供給を行うに当り、複数の家庭をある一つのグループとし、その一つのグループに対して熱源装置としてのコージェネレーション設備等を設け、コージェネレーション設備が発生する熱を複数の家庭で共用の熱源とすることにより、トータルとしてエネルギー効率の向上を図るものである。   The heat source water supply system as described above, for example, includes a plurality of households as one group when supplying heat to a heat consuming unit such as hot water supply or heating in each household that is a heat consumer. By providing cogeneration facilities as heat source devices for one group and using the heat generated by the cogeneration facilities as a heat source shared by a plurality of households, the total energy efficiency is improved.

従来の熱源水供給システムでは、各熱需要家に、熱源水循環ラインから熱源水を取り込んでその熱源水が有する熱を蓄熱可能な蓄熱タンクを備え、その蓄熱タンクに蓄熱された熱を給湯箇所や暖房端末等の熱消費部に供給する熱供給装置が備えられている。この熱供給装置は、熱源水循環ラインから取り込んだ熱源水を蓄熱タンクに通流させて、熱源水が有する熱を蓄熱タンクに貯留されている蓄熱水にて回収して、蓄熱タンクへの蓄熱を行っている。そして、熱供給装置は、蓄熱タンクに貯留されている蓄熱水を給湯箇所に供給することで給湯を行い、熱源水循環ラインから取り込んだ熱源水を蓄熱タンクに通流させて、蓄熱タンクの内部に備えられた熱交換器において熱源水にて熱媒体を加熱しその加熱された熱媒体を熱消費部としての暖房端末等に供給することで暖房を行う（例えば、特許文献１参照。）。   In the conventional heat source water supply system, each heat consumer is provided with a heat storage tank that can take in the heat source water from the heat source water circulation line and store the heat of the heat source water, and the heat stored in the heat storage tank A heat supply device that supplies heat to a heat consuming unit such as a heating terminal is provided. This heat supply device allows the heat source water taken from the heat source water circulation line to flow through the heat storage tank, collects the heat of the heat source water with the heat storage water stored in the heat storage tank, and stores the heat in the heat storage tank. Is going. Then, the heat supply device supplies hot water by supplying the heat storage water stored in the heat storage tank to the hot water supply location, passes the heat source water taken from the heat source water circulation line through the heat storage tank, and enters the heat storage tank. Heating is performed by heating the heat medium with heat source water in the provided heat exchanger and supplying the heated heat medium to a heating terminal or the like as a heat consuming unit (see, for example, Patent Document 1).

特開２００６−２５０４０００号公報JP 2006-2504000 A

上記特許文献１に記載のシステムでは、熱源水循環ラインにて複数の熱需要家に供給する熱源水を加熱するために、コージェネレーション設備等の熱源装置が設けられているが、熱源水を加熱するための熱源として、熱源装置に加えて、太陽熱を用いることが考えられている。   In the system described in Patent Document 1, a heat source device such as a cogeneration facility is provided to heat the heat source water supplied to a plurality of heat consumers in the heat source water circulation line, but the heat source water is heated. As a heat source for this, it is considered to use solar heat in addition to the heat source device.

しかしながら、太陽熱を回収した熱媒体にて熱源水を加熱することを想定すると、夏季等には、十分な太陽熱を回収して熱媒体を高い温度にすることができるが、冬季等には、十分な太陽熱を回収することができず、熱媒体の温度が低くなり、熱媒体にて熱源水を加熱できなくなる可能性がある。
また、複数の熱需要家の熱需要を賄うために、熱源水循環ラインの熱源水の温度は比較的高温に維持されていることから、この比較的高温の熱源水を太陽熱にて加熱するためには、十分な太陽熱が回収されている（即ち、比較的高温の熱が得られている）必要がある。しかしながら、上述の如く、冬季等には、十分な太陽熱を回収することができず、太陽熱を用いて熱源水を加熱できなくなる。
以上のことから、単に、太陽熱を回収した熱媒体にて熱源水を加熱するだけでは、熱媒体にて熱源水を加熱できなくなることがあり、熱源水を加熱するための熱源として、太陽熱を用いることは難しいものとなっていた。 However, assuming that the heat source water is heated with a heat medium that has recovered solar heat, it is possible to recover sufficient solar heat to bring the heat medium to a high temperature in summer, etc. Solar heat cannot be recovered, the temperature of the heat medium becomes low, and the heat source water may not be heated by the heat medium.
Moreover, since the temperature of the heat source water in the heat source water circulation line is maintained at a relatively high temperature in order to cover the heat demand of a plurality of heat consumers, in order to heat this relatively high temperature heat source water with solar heat Requires sufficient solar heat to be recovered (i.e., relatively hot heat is obtained). However, as described above, sufficient solar heat cannot be recovered in winter and the heat source water cannot be heated using solar heat.
From the above, simply heating the heat source water with the heat medium that has recovered the solar heat may make it impossible to heat the heat source water with the heat medium, and solar heat is used as a heat source for heating the heat source water. That was difficult.

本発明は、かかる点に着目してなされたものであり、その目的は、熱源水を加熱するための熱源として太陽熱を用いることができながら、システム全体としてその太陽熱を有効に活用して、エネルギー効率の向上を図ることができる熱源水供給システムを提供する点にある。   The present invention has been made paying attention to such points, and its purpose is to effectively utilize the solar heat as a whole system while being able to use solar heat as a heat source for heating the heat source water, The point is to provide a heat source water supply system capable of improving the efficiency.

この目的を達成するために、本発明に係る熱源水供給システムの特徴構成は、熱源装置にて加熱された熱源水を複数の熱需要家に順に供給して前記熱源装置に戻す熱源水循環ラインを備え、各熱需要家には、前記熱源水循環ラインから熱源水を取り込んでその取り込んだ熱源水を前記熱源水循環ラインの取り込み箇所よりも熱源水の流れ方向の下流側に戻すとともに、取り込んだ熱源水を利用して熱消費部への熱供給を行う熱供給装置が備えられている熱源水供給システムにおいて、
前記熱源水循環ラインにおいて複数の熱需要家に供給する熱源水よりも低温の熱源水が通流する低温通流部位には、太陽熱回収装置にて回収した太陽熱を有する熱媒体と熱源水とを熱交換させる太陽熱熱交換器が備えられ、複数の熱需要家に給水する水と前記太陽熱回収装置にて回収した太陽熱を有する熱媒体とを熱交換させる給水予熱熱交換器と、前記太陽熱回収装置にて回収した太陽熱を有する熱媒体を前記太陽熱熱交換器に通流する第１通流状態と前記給水予熱熱交換器に通流する第２通流状態とに切換自在な通流状態切換手段とが備えられている点にある。 In order to achieve this object, the heat source water supply system according to the present invention includes a heat source water circulation line that sequentially supplies heat source water heated by the heat source device to a plurality of heat consumers and returns the heat source water to the heat source device. Each heat consumer takes heat source water from the heat source water circulation line and returns the taken heat source water to the downstream side in the flow direction of the heat source water from the intake location of the heat source water circulation line. In the heat source water supply system provided with a heat supply device that supplies heat to the heat consumption unit using
In the heat source water circulation line, the heat source water having the solar heat recovered by the solar heat recovery device and the heat source water are heated in a low temperature flow portion through which heat source water having a temperature lower than heat source water supplied to a plurality of heat consumers flows. A solar heat exchanger to be exchanged, a water supply preheating heat exchanger for exchanging heat between water supplied to a plurality of heat consumers and a heat medium having solar heat recovered by the solar heat recovery device, and the solar heat recovery device A flow state switching means capable of switching between a first flow state in which the heat medium having the solar heat recovered in this way flows to the solar heat exchanger and a second flow state in which the heat medium flows through the feed water preheating heat exchanger. Is in the point that is provided.

本特徴構成によれば、太陽熱を回収した熱媒体（太陽熱を有する熱媒体）の放熱対象を、熱源水循環ラインの熱源水とする太陽熱熱交換器に加え、複数の熱需要家に給水する水とする給水予熱熱交換器が備えられている。そして、通流状態切換手段が太陽熱を有する熱媒体の通流形態を第１通流状態と第２通流状態とに切り換えることで、太陽熱回収装置にて回収した太陽熱を有する熱媒体の放熱対象を、熱源水循環ラインの熱源水とするか又は複数の熱需要家に給水する水とするかを切り換えることができる。   According to this characteristic configuration, in addition to a solar heat exchanger that uses a heat source that collects solar heat (a heat medium having solar heat) as a heat source water for a heat source water circulation line, water that is supplied to a plurality of heat consumers, A feed water preheating heat exchanger is provided. Then, the flow state switching means switches the flow mode of the heat medium having solar heat between the first flow state and the second flow state, thereby radiating heat from the heat medium having solar heat recovered by the solar heat recovery device. Can be switched between heat source water circulation line heat source water and water supplied to a plurality of heat consumers.

これにより、夏季等、十分な太陽熱を回収できるときには、通流状態切換手段が第１通流状態に切り換えて、太陽熱を回収して高温となった熱媒体にて熱源水を加熱することができる。そして、太陽熱熱交換器は、複数の熱需要家に供給する熱源水よりも低温の熱源水が通流する低温通流部位に備えられているので、太陽熱熱交換器では、十分な太陽熱を回収して高温となった熱媒体と複数の熱需要家に供給する熱源水よりも低温の熱源水とを熱交換させるので、熱媒体による熱源水の加熱を確実に行える。
また、夏季以外等、十分な太陽熱を回収できないときには、通流状態切換手段が第２通流状態に切り換えて、太陽熱を回収した熱媒体にて複数の熱需要家に給水する水を予熱することができる。 Thereby, when sufficient solar heat can be recovered, such as in summer, the flow state switching means switches to the first flow state, and the heat source water can be heated by the heat medium that has recovered the solar heat and has reached a high temperature. . And since the solar heat exchanger is provided in the low-temperature flow part through which the heat source water having a temperature lower than the heat source water supplied to a plurality of heat consumers flows, the solar heat exchanger recovers sufficient solar heat. Thus, the heat source water having a high temperature and the heat source water having a temperature lower than the heat source water to be supplied to a plurality of heat consumers are heat-exchanged, so that the heat source water can be reliably heated by the heat medium.
Further, when sufficient solar heat cannot be recovered, such as in summer, the flow state switching means switches to the second flow state and preheats the water supplied to a plurality of heat consumers with the heat medium that has recovered the solar heat. Can do.

このように、十分な太陽熱を回収できるときには、通流状態切換手段が第１通流状態に切り換えて、熱源水を加熱するための熱源として太陽熱を用いることができながら、十分な太陽熱を回収できないときであっても、通流状態切換手段が第２通流状態に切り換えて、太陽熱にて複数の熱需要家に給水する水を予熱して、システムとしてその太陽熱を有効に活用することができ、エネルギー効率の向上を図ることができる熱源水供給システムを実現できるに至った。   As described above, when sufficient solar heat can be recovered, the flow state switching means switches to the first flow state, and solar heat can be used as a heat source for heating the heat source water, but sufficient solar heat cannot be recovered. Even when the flow state switching means is switched to the second flow state, the water supplied to the plurality of heat consumers by solar heat can be preheated and the solar heat can be effectively utilized as a system. As a result, a heat source water supply system capable of improving energy efficiency can be realized.

本発明に係る熱源水供給システムの更なる特徴構成は、前記熱源水循環ラインの前記低温通流部位は、複数の熱需要家に供給したのち前記熱源装置に熱源水を戻す部位に設定されている点にある。   In a further characteristic configuration of the heat source water supply system according to the present invention, the low temperature flow part of the heat source water circulation line is set to a part for returning the heat source water to the heat source device after supplying the heat source water to a plurality of heat consumers. In the point.

本特徴構成によれば、複数の熱需要家に供給したのち熱源装置に戻す熱源水の温度は低温になっていることから、その低温の熱源水が通流する部位に太陽熱熱交換器を備えることができる。したがって、太陽熱熱交換器では、熱媒体と熱源水との温度差をより大きくすることができ、熱媒体にて熱源水を効率よく加熱することができる。その結果、システムとして活用できる太陽熱の熱量を増やすことができ、エネルギー効率の向上をより一層図ることができる。   According to this characteristic configuration, since the temperature of the heat source water that is supplied to a plurality of heat consumers and then returned to the heat source device is low, a solar heat exchanger is provided at a portion through which the low-temperature heat source water flows. be able to. Therefore, in the solar heat exchanger, the temperature difference between the heat medium and the heat source water can be further increased, and the heat source water can be efficiently heated with the heat medium. As a result, the amount of solar heat that can be used as a system can be increased, and the energy efficiency can be further improved.

本発明に係る熱源水供給システムの更なる特徴構成は、前記熱源水循環ライン内の熱源水の減少に伴って熱源水を補給する補給手段を備え、前記熱源水循環ラインの前記低温通流部位は、前記熱源水循環ラインに前記補給手段により熱源水を補給する部位に設定されている点にある。   A further characteristic configuration of the heat source water supply system according to the present invention includes a replenishment means for replenishing the heat source water as the heat source water in the heat source water circulation line decreases, and the low-temperature flow portion of the heat source water circulation line includes: It exists in the point set to the site | part which replenishes heat source water to the said heat source water circulation line by the said replenishment means.

本特徴構成によれば、補給手段は、通常、給水することで熱源水循環ラインに熱源水を補給しているので、熱源水循環ラインに補給手段により熱源水を補給する熱源水の温度は低温になっている。よって、その低温の熱源水が通流する部位に太陽熱熱交換器を備えることができ、太陽熱熱交換器では、熱媒体と熱源水との温度差をより大きくすることができ、熱媒体にて熱源水を効率よく加熱することができる。その結果、システムとして活用できる太陽熱の熱量を増やすことができ、エネルギー効率の向上をより一層図ることができる。   According to this feature configuration, since the replenishment means normally replenishes the heat source water circulation line by supplying water, the temperature of the heat source water to replenish the heat source water to the heat source water circulation line by the replenishment means becomes low. ing. Therefore, a solar heat exchanger can be provided in a portion through which the low-temperature heat source water flows, and in the solar heat exchanger, the temperature difference between the heat medium and the heat source water can be further increased. Heat source water can be efficiently heated. As a result, the amount of solar heat that can be used as a system can be increased, and the energy efficiency can be further improved.

本発明に係る熱源水供給システムの更なる特徴構成は、前記熱源水循環ライン内の熱源水の減少に伴って熱源水を補給する補給手段を備え、前記熱供給装置は、前記熱源水循環ラインから取り込んだ熱源水を前記熱消費部としての給湯箇所に給湯自在に構成されている点にある。   A further characteristic configuration of the heat source water supply system according to the present invention includes replenishment means for replenishing the heat source water as the heat source water in the heat source water circulation line decreases, and the heat supply device takes in the heat source water circulation line. The heat source water is configured to be freely supplied to a hot water supply portion as the heat consuming part.

本特徴構成によれば、熱供給装置が、熱源水循環ラインから取り込んだ熱源水を給湯箇所に給湯するので、熱源水循環ラインの熱源水の流量が減少する。よって、補給手段により熱源水循環ラインに熱源水が補給されることになる。そして、上述の如く、補給手段により補給される熱源水は通常低温となっていることから、その熱源水の補給により熱源水循環ラインの低温通流部位での熱源水の温度も低くすることができる。つまり、補給手段により補給された低温の熱源水が、熱源装置に供給されて加熱されたのち、複数の熱需要家に供給されるので、上述の如く、複数の熱需要家に供給したのち熱源装置に熱源水を戻す部位を低温通流部位として設定した場合には、その低温通流部を通流する熱源水の温度を低くすることができる。また、上述の如く、補給手段により熱源水を補給する部位を低温通流部位として設定した場合には、補給手段により補給される低温の熱源水が低温通流部を通流するので、低温通流部位の熱源水の温度を確実に低くできる。したがって、低温通流部位に備えられる太陽熱熱交換器では、熱源水の温度を極力低くでき、熱媒体と熱源水との温度差を大きくして、システムとして活用できる太陽熱の熱量を増加させ易いものとなる。   According to this characteristic configuration, the heat supply device supplies the heat source water taken from the heat source water circulation line to the hot water supply location, so the flow rate of the heat source water in the heat source water circulation line decreases. Therefore, the heat source water is supplied to the heat source water circulation line by the supply means. As described above, since the heat source water replenished by the replenishing means is normally at a low temperature, the temperature of the heat source water at the low temperature flow portion of the heat source water circulation line can be lowered by replenishing the heat source water. . That is, since the low-temperature heat source water replenished by the replenishing means is supplied to the heat source device and heated, and then supplied to a plurality of heat consumers, the heat source is supplied to the plurality of heat consumers as described above. When the part for returning the heat source water to the apparatus is set as the low temperature flow part, the temperature of the heat source water flowing through the low temperature flow part can be lowered. In addition, as described above, when the portion where the heat source water is replenished by the replenishing means is set as the low temperature flow portion, the low temperature heat source water replenished by the replenishing means flows through the low temperature flow portion. The temperature of the heat source water at the flow site can be reliably lowered. Therefore, in the solar heat exchanger provided in the low temperature flow part, the temperature of the heat source water can be lowered as much as possible, the temperature difference between the heat medium and the heat source water is increased, and the amount of solar heat that can be utilized as a system is easily increased. It becomes.

本発明に係る熱源水供給システムの更なる特徴構成は、前記通流状態切換手段が、前記太陽熱回収装置にて回収した太陽熱を有する熱媒体の温度が前記太陽熱熱交換器に供給される熱源水の温度よりも高いと、前記第１通流状態に切り換え、前記熱媒体の温度が前記熱源水の温度以下であると、前記第２通流状態に切り換える点にある。   A further characteristic configuration of the heat source water supply system according to the present invention is the heat source water in which the flow state switching means supplies the temperature of the heat medium having solar heat recovered by the solar heat recovery device to the solar heat exchanger. When the temperature is higher than the temperature, the first flow state is switched to, and when the temperature of the heat medium is equal to or lower than the temperature of the heat source water, the second flow state is switched.

本特徴構成によれば、通流状態切換手段における第１通流状態と第２通流状態との切り換えについて、太陽熱を回収した熱媒体の温度と太陽熱熱交換器に供給される熱源水の温度との大小関係に基づいて行う。このように、太陽熱を回収した熱媒体の温度と熱源水の温度との大小関係を判別することで、実際に太陽熱を回収した熱媒体にて熱源水を加熱できるか否かを的確に判別することができる。よって、通流状態切換手段が、実際に太陽熱を回収した熱媒体にて熱源水を加熱できるかを判別し、その判別結果に基づいて、第１通流状態と第２通流状態とに切り換えるので、第１通流状態と第２通流状態との切り換えを実際の状況に応じて適切に行うことができる。   According to this characteristic configuration, regarding the switching between the first flow state and the second flow state in the flow state switching means, the temperature of the heat medium recovering solar heat and the temperature of the heat source water supplied to the solar heat exchanger This is based on the size relationship. In this way, by determining the magnitude relationship between the temperature of the heat medium that recovered solar heat and the temperature of the heat source water, it is possible to accurately determine whether the heat source water can be heated by the heat medium that actually recovered solar heat. be able to. Therefore, the flow state switching means determines whether the heat source water can be heated by the heat medium that has actually recovered the solar heat, and switches between the first flow state and the second flow state based on the determination result. Therefore, switching between the first flow state and the second flow state can be appropriately performed according to the actual situation.

本発明に係る熱源水供給システムの更なる特徴構成は、前記熱源水循環ラインにて複数の熱需要家に供給する熱源水の温度を高温用目標温度範囲内に調整する高温調整状態と低温用目標温度範囲内に調整する低温調整状態とに切換自在な熱源水温度調整手段が備えられている点にある。   A further characteristic configuration of the heat source water supply system according to the present invention includes a high temperature adjustment state and a low temperature target for adjusting the temperature of the heat source water supplied to a plurality of heat consumers in the heat source water circulation line within a target temperature range for high temperature. The heat source water temperature adjusting means is provided that can be switched to a low temperature adjustment state that is adjusted within the temperature range.

本特徴構成によれば、熱源水温度調整手段が高温調整状態と低温調整状態とに切り換えることで、複数の熱需要家に供給する熱源水の温度を高温用目標温度範囲内とするか低温用目標温度範囲内とするかを切り換えることができる。冬季等では、熱需要家の熱需要が多いが、夏季等では、熱需要家の熱需要が少ないので、例えば、冬季等では、熱源水温度調整手段が高温調整状態に切り換え、夏季等では、熱源水温度調整手段が低温調整状態に切り換えることができ、熱需要家の熱需要に応じて熱需要家に供給する熱源水の温度を調整することができる。即ち、季節で異なる複数の熱需要を満たすことができる。
また、熱源水温度調整手段が低温調整状態に切り換えると、低温用目標温度範囲内の熱源水を熱需要家に供給するので、低温通流部位を通流する熱源水の温度は、高温調整状態に切り換えたときよりも低温となる。そこで、例えば、夏季等には、熱源水温度調整手段を低温状態に切り換えておくことで、通流状態切換手段を第１通流状態に切り換えたときに、太陽熱熱交換器での熱源水の温度をより低くでき、熱媒体と熱源水との温度差をより大きくして、太陽熱を回収した熱媒体にて熱源水を効率よく加熱することができる。 According to this feature configuration, the heat source water temperature adjusting means switches between the high temperature adjustment state and the low temperature adjustment state, so that the temperature of the heat source water supplied to a plurality of heat consumers falls within the high temperature target temperature range or for the low temperature use. Whether the temperature is within the target temperature range can be switched. In winter, etc., the heat demand of the heat consumer is large, but in summer, etc., the heat demand of the heat consumer is small.For example, in the winter, the heat source water temperature adjustment means switches to the high temperature adjustment state. The heat source water temperature adjusting means can be switched to the low temperature adjustment state, and the temperature of the heat source water supplied to the heat consumer can be adjusted according to the heat demand of the heat consumer. That is, it is possible to satisfy a plurality of heat demands that differ according to the season.
In addition, when the heat source water temperature adjusting means switches to the low temperature adjustment state, the heat source water within the low temperature target temperature range is supplied to the heat consumer, so the temperature of the heat source water flowing through the low temperature flow-through portion is the high temperature adjustment state. It becomes cooler than when it is switched to. Therefore, for example, in summer, the heat source water temperature adjusting means is switched to a low temperature state, so that the heat source water in the solar heat exchanger is switched when the flow state switching means is switched to the first flow state. The temperature can be further reduced, the temperature difference between the heat medium and the heat source water can be increased, and the heat source water can be efficiently heated with the heat medium that has recovered solar heat.

第１実施形態における熱源水供給システムの全体構成図Overall configuration diagram of heat source water supply system in the first embodiment 熱供給装置の構成図Configuration diagram of heat supply device 第２実施形態における熱源水供給システムの全体構成図Overall configuration diagram of heat source water supply system in the second embodiment

本発明に係る熱源水供給システムの実施形態を図面に基づいて説明する。
〔第１実施形態〕
この熱源水供給システムは、図１に示すように、熱源水Ｎ１を貯留する熱源水タンク１と、熱源水Ｎ１を加熱する熱源装置２と、熱源水タンク１に熱源水Ｎ１を給水する給水手段３と、熱源装置２にて加熱された熱源水Ｎ１及び熱源水タンク１に貯留されている熱源水Ｎ１を複数の熱需要家に順に供給して熱源装置２に戻す熱源水循環ライン４とを備えている。そして、複数の熱需要家の夫々には、熱源水循環ライン４の取り込み箇所Ｂ１から熱源水Ｎ１を取り込んでその取り込んだ熱源水Ｎ１を熱源水循環ライン４の取り込み箇所Ｂ１よりも熱源水Ｎ１の流れ方向の下流側の戻し箇所Ｂ２に戻すとともに、取り込んだ熱源水Ｎ１が有する熱を給湯箇所や暖房端末等の熱消費部に供給する熱供給装置５が備えられている。これにより、熱源装置２を共用の熱源として、エネルギー効率の向上を図りながら、各熱需要家における熱供給装置５での熱消費を実現可能としている。 An embodiment of a heat source water supply system according to the present invention will be described with reference to the drawings.
[First Embodiment]
As shown in FIG. 1, the heat source water supply system includes a heat source water tank 1 for storing heat source water N1, a heat source device 2 for heating the heat source water N1, and a water supply means for supplying the heat source water N1 to the heat source water tank 1. 3 and a heat source water circulation line 4 that sequentially supplies the heat source water N1 heated by the heat source device 2 and the heat source water N1 stored in the heat source water tank 1 to a plurality of heat consumers and returns them to the heat source device 2. ing. The heat source water N1 is taken in from the intake point B1 of the heat source water circulation line 4 to each of the plurality of heat consumers, and the taken heat source water N1 is flowed in the flow direction of the heat source water N1 from the intake point B1 of the heat source water circulation line 4 And a heat supply device 5 that supplies the heat of the heat source water N1 that has been taken in to a heat consuming portion such as a hot water supply location or a heating terminal. Thereby, the heat source device 2 is used as a common heat source, and heat consumption in the heat supply device 5 in each heat consumer can be realized while improving energy efficiency.

〔熱源装置〕
熱源装置２は、例えば、都市ガスを燃料とするガスエンジンや燃料電池を備えて熱と電気とを発生する熱電併給装置である。そして、熱電併給装置にて発生した熱を回収した排熱搬送流体Ｎ２を循環させる排熱搬送流体循環路６が備えられ、その排熱搬送流体循環路６には、熱電併給装置にて発生した熱を回収した排熱搬送流体Ｎ２と熱源水Ｎ１とを熱交換させる排熱熱交換器７と、排熱搬送流体Ｎ２を循環させる排熱搬送流体循環ポンプ８とが備えられている。 [Heat source device]
The heat source device 2 is, for example, a cogeneration device that includes a gas engine and a fuel cell that use city gas as fuel, and generates heat and electricity. And the exhaust heat conveyance fluid circulation path 6 which circulates the exhaust heat conveyance fluid N2 which collect | recovered the heat | fever which generate | occur | produced in the combined heat and power supply apparatus is provided, and the waste heat conveyance fluid circulation path 6 generate | occur | produced in the combined heat and power supply apparatus. An exhaust heat transfer exchanger 7 for exchanging heat between the exhaust heat transfer fluid N2 from which heat has been recovered and the heat source water N1 and an exhaust heat transfer fluid circulation pump 8 for circulating the exhaust heat transfer fluid N2 are provided.

〔給水手段〕
給水手段３は、熱源水タンク１の下部に熱源水Ｎ１を供給する給水路にて構成されており、例えば給水圧や給水ポンプの作動により熱源水Ｎ１を熱源水タンク１に給水している。ここで、給水手段３にて熱源水タンク１に給水した熱源水Ｎ１を熱源水循環ライン４に補給するので、補給手段が、熱源水タンク１及び給水手段３にて構成されている。 [Water supply means]
The water supply means 3 is configured by a water supply passage that supplies heat source water N1 to the lower part of the heat source water tank 1, and supplies the heat source water N1 to the heat source water tank 1 by, for example, operation of a water supply pressure or a water supply pump. Here, since the heat source water N1 supplied to the heat source water tank 1 by the water supply means 3 is supplied to the heat source water circulation line 4, the supply means is constituted by the heat source water tank 1 and the water supply means 3.

〔熱源水循環ライン〕
熱源水循環ライン４は、往き部位４ａにて順序付けられた各熱需要家に熱源水Ｎ１を供給するとともに、戻り部位４ｂにて各熱需要家を一巡した後の熱源水Ｎ１を熱源装置２及び熱源水タンク１に戻すシングルループ配管にて構成されている。熱源水タンク１と排熱熱交換器７とは、往き部位４ａ及び戻り部位４ｂの夫々に接続され、並列状態で設けられている。熱源水タンク１の上部は往き部位４ａに接続され且つ熱源水タンク１の下部は戻り部位４ｂに接続されている。これにより、熱源水循環ライン４は、熱源水タンク１の下部から取り出した熱源水Ｎ１を排熱熱交換器７にて加熱し、その加熱した熱源水Ｎ１を熱源水タンク１の上部に戻す循環路としても作用するように構成されている。つまり、熱源水循環ライン４に備えられた第２熱源水循環ポンプ１０を作動させることで、熱源水タンク１の下部から取り出した熱源水Ｎ１を排熱熱交換器７にて加熱し、その加熱した熱源水Ｎ１を熱源水タンク１の上部に戻すことができる。このようにして、熱源装置２は、熱源水タンク１に貯留されている熱源水Ｎ１を加熱自在に構成されている。 [Heat source water circulation line]
The heat source water circulation line 4 supplies the heat source water N1 to each heat consumer ordered at the outgoing part 4a, and uses the heat source water N1 after making a round of each heat consumer at the return part 4b as the heat source device 2 and the heat source. It consists of a single loop pipe that returns to the water tank 1. The heat source water tank 1 and the exhaust heat exchanger 7 are connected to the forward part 4a and the return part 4b, respectively, and are provided in parallel. The upper part of the heat source water tank 1 is connected to the outgoing part 4a, and the lower part of the heat source water tank 1 is connected to the return part 4b. Thereby, the heat source water circulation line 4 heats the heat source water N1 taken out from the lower part of the heat source water tank 1 by the exhaust heat exchanger 7, and returns the heated heat source water N1 to the upper part of the heat source water tank 1. It is comprised so that it may act as. That is, by operating the second heat source water circulation pump 10 provided in the heat source water circulation line 4, the heat source water N1 taken out from the lower part of the heat source water tank 1 is heated by the exhaust heat exchanger 7, and the heated heat source The water N1 can be returned to the upper part of the heat source water tank 1. In this way, the heat source device 2 is configured to freely heat the heat source water N1 stored in the heat source water tank 1.

熱源水循環ライン４の往き部位４ａには、熱源水Ｎ１の流れ方向において熱源水タンク１の上部との接続箇所よりも下流側に、第１熱源水循環ポンプ９、熱源水Ｎ１の温度を検出する第１熱源水温度センサＴ１、熱源水Ｎ１の流量を検出する第１熱源水流量センサＲ１が設けられている。   In the outgoing part 4a of the heat source water circulation line 4, the temperature of the first heat source water circulation pump 9 and the heat source water N1 is detected downstream of the connection point with the upper part of the heat source water tank 1 in the flow direction of the heat source water N1. 1 heat source water temperature sensor T1 and 1st heat source water flow sensor R1 which detects the flow of heat source water N1 are provided.

熱源水循環ライン４の戻り部位４ｂには、熱源水Ｎ１の流れ方向において熱源水タンク１の下部との接続箇所よりも上流側に、熱源水Ｎ１の流量を検出する第２熱源水流量センサＲ２、熱源水Ｎ１の温度を検出する第２熱源水温度センサＴ２が設けられている。熱源水Ｎ１の流れ方向において熱源水タンク１の下部との接続箇所よりも下流側の戻り路４ｂには、熱源水Ｎ１の温度を検出する第３熱源水温度センサＴ３、第２熱源水循環ポンプ１０が設けられている。   The return portion 4b of the heat source water circulation line 4 includes a second heat source water flow rate sensor R2 that detects the flow rate of the heat source water N1 upstream of the connection location with the lower portion of the heat source water tank 1 in the flow direction of the heat source water N1. A second heat source water temperature sensor T2 that detects the temperature of the heat source water N1 is provided. A third heat source water temperature sensor T3 for detecting the temperature of the heat source water N1 and a second heat source water circulation pump 10 are provided in the return path 4b downstream of the connection point with the lower portion of the heat source water tank 1 in the flow direction of the heat source water N1. Is provided.

〔太陽熱熱交換器〕
熱源水循環ライン４には、排熱熱交換器７に加えて、太陽熱回収装置５１にて回収した太陽熱を有する熱媒体Ｎ３（例えば温水）にて熱源水Ｎ１を加熱する太陽熱熱交換器５２が設けられている。太陽熱熱交換器５２は、熱源水循環ライン４の戻り部位４ｂにおいて第３熱源水温度センサＴ３と第２熱源水循環ポンプ１０との間に配設されており、熱源水循環ライン４において複数の熱需要家に供給したのち熱源装置２に熱源水Ｎ１を戻す戻り部位４ｂに配設されている。これにより、熱源水循環ライン４において複数の熱需要家を一巡して低温となった熱源水Ｎ１が通流する低温通流部位に太陽熱熱交換器５２を配設することができ、太陽熱熱交換器５２において熱媒体Ｎ３と熱源水Ｎ１との温度差を極力大きくして熱源水Ｎ１を効率よく加熱することができる。 [Solar heat exchanger]
In addition to the exhaust heat exchanger 7, the heat source water circulation line 4 is provided with a solar heat exchanger 52 that heats the heat source water N1 with a heat medium N3 (for example, hot water) having solar heat recovered by the solar heat recovery device 51. It has been. The solar heat exchanger 52 is disposed between the third heat source water temperature sensor T3 and the second heat source water circulation pump 10 at the return portion 4b of the heat source water circulation line 4, and a plurality of heat consumers in the heat source water circulation line 4. After being supplied to the heat source device 2, the heat source water N1 is returned to the heat source device 2 and disposed in the return portion 4b. As a result, the solar heat exchanger 52 can be disposed in the low-temperature passage portion through which the heat source water N1 that has reached a low temperature through a plurality of heat consumers in the heat source water circulation line 4 flows, and the solar heat exchanger In 52, the temperature difference between the heat medium N3 and the heat source water N1 can be increased as much as possible to heat the heat source water N1 efficiently.

上述の如く、熱源水循環ライン４は、熱源水タンク１の下部から取り出した熱源水Ｎ１を排熱熱交換器７にて加熱し、その加熱した熱源水Ｎ１を熱源水タンク１の上部に戻す循環路としても作用するように構成されている。このように熱源水タンク１に貯留されている熱源水Ｎ１を排熱熱交換器７にて加熱する場合に、熱源水タンク１の下部から取り出した熱源水Ｎ１が太陽熱熱交換器５２を通流するので、排熱熱交換器７に加えて、太陽熱熱交換器５２によっても熱源水Ｎ１を加熱することができる。そして、給水手段３により熱源水タンク１に熱源水Ｎ１を給水してその熱源水Ｎ１を排熱熱交換器７にて加熱する場合には、給水手段３が熱源水タンク１の下部に熱源水Ｎ１を給水するので、熱源水タンク１の下部から取り出した熱源水Ｎ１が低温になっており、その低温の熱源水Ｎ１が太陽熱熱交換器５２に供給される。これにより、熱源水Ｎ１を熱源装置２にて加熱する場合に低温の熱源水Ｎ１が通流する低温通流部位に太陽熱熱交換器５２を配設している。   As described above, the heat source water circulation line 4 circulates the heat source water N1 extracted from the lower part of the heat source water tank 1 by the exhaust heat exchanger 7 and returns the heated heat source water N1 to the upper part of the heat source water tank 1. It is also configured to act as a road. Thus, when the heat source water N1 stored in the heat source water tank 1 is heated by the exhaust heat exchanger 7, the heat source water N1 taken out from the lower part of the heat source water tank 1 flows through the solar heat exchanger 52. Therefore, in addition to the exhaust heat exchanger 7, the heat source water N1 can also be heated by the solar heat exchanger 52. When the heat source water N1 is supplied to the heat source water tank 1 by the water supply means 3 and the heat source water N1 is heated by the exhaust heat exchanger 7, the water supply means 3 is placed under the heat source water tank 1 in the heat source water. Since N1 is supplied, the heat source water N1 taken out from the lower part of the heat source water tank 1 has a low temperature, and the low temperature heat source water N1 is supplied to the solar heat exchanger 52. Thereby, when heating the heat source water N1 with the heat source device 2, the solar heat exchanger 52 is disposed in a low temperature flow portion through which the low temperature heat source water N1 flows.

太陽熱回収装置５１と太陽熱熱交換器５２との間で熱媒体Ｎ３を循環させる熱媒体循環路５３が設けられており、この熱媒体循環路５３により太陽熱回収装置５１にて回収した太陽熱を有する熱媒体Ｎ３が太陽熱熱交換器５２に供給され、太陽熱熱交換器５２を通過した熱媒体Ｎ３が太陽熱回収装置５１に戻される。ここで、熱媒体循環路５３は、例えば、真空管等により高温の熱媒体を通流可能なもので構成されており、太陽熱回収装置５１にて回収した太陽熱により高温となった熱媒体Ｎ３を通流可能に構成されている。   A heat medium circulation path 53 for circulating the heat medium N3 is provided between the solar heat recovery apparatus 51 and the solar heat exchanger 52, and heat having solar heat recovered by the solar heat recovery apparatus 51 through the heat medium circulation path 53 is provided. The medium N3 is supplied to the solar heat exchanger 52, and the heat medium N3 that has passed through the solar heat exchanger 52 is returned to the solar heat recovery device 51. Here, the heat medium circulation path 53 is configured to allow a high-temperature heat medium to flow through, for example, a vacuum tube or the like, and passes through the heat medium N3 that has been heated by the solar heat recovered by the solar heat recovery device 51. It is configured to flow.

〔給水予熱熱交換器〕
熱媒体循環路５３には、太陽熱熱交換器５２と並列状態で給水予熱熱交換器５４が設けられている。つまり、熱媒体循環路５３は、その途中にて分岐したのち合流する第１分岐合流部位５３ａと第２分岐合流部位５３ｂとを並列状態で備えており、第１分岐合流部位５３ａに太陽熱熱交換器５２が備えられ、第２分岐合流部位５３ｂに給水予熱熱交換器５４が備えられている。 [Water supply preheating heat exchanger]
The heat medium circulation path 53 is provided with a feed water preheating heat exchanger 54 in parallel with the solar heat exchanger 52. In other words, the heat medium circulation path 53 includes a first branch joint portion 53a and a second branch joint portion 53b that join after being branched in the middle, and solar heat exchange with the first branch joint portion 53a. The water supply preheating heat exchanger 54 is provided in the 2nd branch merge part 53b.

給水予熱熱交換器５４は、給水タンク５４に貯留されている水Ｎ４と太陽熱回収装置５１にて回収した太陽熱を有する熱媒体Ｎ３とを熱交換させており、給水タンク５５には、複数の熱需要家に給水する水Ｎ４が貯留されている。ここで、給水予熱熱交換器５４は、給水タンク５５の下部に貯留されている水Ｎ４と熱媒体Ｎ３とを熱交換させるように配設されており、熱媒体Ｎ３と水Ｎ４との温度差をより大きくして熱媒体Ｎ３にて水Ｎ４を効率よく加熱できる。給水タンク５５に貯留されている水Ｎ４は、図外の給水ポンプ等を作動させることで、熱需要家用給水路５６により複数の熱需要家の熱供給装置５に供給自在に構成されている。   The feed water preheating heat exchanger 54 exchanges heat between the water N4 stored in the feed water tank 54 and the heat medium N3 having solar heat collected by the solar heat recovery device 51. The feed water tank 55 includes a plurality of heats. Water N4 for supplying water to consumers is stored. Here, the feed water preheating heat exchanger 54 is disposed so as to exchange heat between the water N4 stored in the lower portion of the feed water tank 55 and the heat medium N3, and the temperature difference between the heat medium N3 and the water N4. And the water N4 can be efficiently heated by the heat medium N3. The water N4 stored in the water supply tank 55 is configured to be freely supplied to the heat supply devices 5 of a plurality of heat consumers by operating a water supply pump or the like (not shown) through a water supply channel 56 for heat consumers.

〔熱媒体の通流形態〕
熱媒体循環路５３において第１分岐合流部位５３ａと第２分岐合流部位５３ｂとの分岐箇所には、太陽熱回収装置５１にて太陽熱を回収した熱媒体Ｎ３を第１分岐合流部位５３ａに通流させて太陽熱熱交換器５２に通流させる第１通流状態（図中実線矢印参照）と、太陽熱回収装置５１にて太陽熱を回収した熱媒体Ｎ３を第２分岐合流部位５３ｂに通流させて給水予熱熱交換器５４に通流させる第２通流状態（図中点線矢印参照）とに切換自在な通流状態切換用三方弁５７が備えられている。 [Flow mode of heat medium]
In the heat medium circulation path 53, the heat medium N3 that has recovered the solar heat by the solar heat recovery device 51 is caused to flow to the first branch / merging part 53a at the branching point between the first branch / merging part 53a and the second branch / merging part 53b. The first flow state (see the solid line arrow in the figure) to flow through the solar heat exchanger 52 and the heat medium N3 recovered from the solar heat by the solar heat recovery device 51 are passed through the second branch merge section 53b to supply water A three-way valve 57 for switching the flow state is provided that can be switched to a second flow state (see the dotted line arrow in the figure) to flow through the preheating heat exchanger 54.

〔補助加熱装置〕
熱源水循環ライン４には、排熱熱交換器７及び太陽熱熱交換器５２に加えて、熱源水Ｎ１を加熱する補助加熱装置１１が設けられている。補助加熱装置１１は、排熱熱交換器７及び熱源水タンク１と並列状態になるように、戻り部位４ｂと往き部位４ａとを接続する分岐循環路１２に設けられている。分岐循環路１２には、補助加熱装置１１への熱源水Ｎ１の供給を断続するともに、その供給量を制御する通流制御弁１３が設けられている。補助加熱装置１１は、例えば、ガスバーナを燃焼させて熱源水Ｎ１を加熱するように構成されている。 [Auxiliary heating device]
The heat source water circulation line 4 is provided with an auxiliary heating device 11 that heats the heat source water N1 in addition to the exhaust heat exchanger 7 and the solar heat exchanger 52. The auxiliary heating device 11 is provided in the branch circulation path 12 that connects the return portion 4b and the forward portion 4a so as to be in parallel with the exhaust heat exchanger 7 and the heat source water tank 1. The branch circuit 12 is provided with a flow control valve 13 for intermittently supplying the heat source water N1 to the auxiliary heating device 11 and controlling the supply amount. The auxiliary heating device 11 is configured to heat the heat source water N1 by burning a gas burner, for example.

〔熱源水供給システムの制御構成〕
熱源水供給システムの運転を制御する運転制御装置２０が設けられている。運転制御装置２０は、熱源装置２、排熱搬送流体循環ポンプ８、第１熱源水循環ポンプ９、第２熱源水循環ポンプ１０、通流制御弁１３、補助加熱装置１１、太陽熱回収装置５１、通流状態切換用三方弁５７の夫々の作動を各別に制御するように構成されている。運転制御装置２０には、第１熱源水温度センサＴ１、第２熱源水温度センサＴ２、第３熱源水温度センサＴ３、第１熱源水流量センサＲ１、第２熱源水流量センサＲ２の夫々の検出情報が入力されるように構成されている。また、図示は省略するが、太陽熱回収装置５１には、太陽熱を回収した熱媒体Ｎ３の温度を検出する熱媒体温度検出センサが備えられており、その熱媒体温度検出センサの検出情報も運転制御装置２０に入力されるように構成されている。 [Control configuration of heat source water supply system]
An operation control device 20 that controls the operation of the heat source water supply system is provided. The operation control device 20 includes a heat source device 2, an exhaust heat transfer fluid circulation pump 8, a first heat source water circulation pump 9, a second heat source water circulation pump 10, a flow control valve 13, an auxiliary heating device 11, a solar heat recovery device 51, a flow. Each operation of the state switching three-way valve 57 is configured to be controlled separately. The operation control device 20 includes a first heat source water temperature sensor T1, a second heat source water temperature sensor T2, a third heat source water temperature sensor T3, a first heat source water flow sensor R1, and a second heat source water flow sensor R2. Information is configured to be input. Moreover, although illustration is abbreviate | omitted, the solar-heat recovery apparatus 51 is provided with the heat-medium temperature detection sensor which detects the temperature of the heat medium N3 which collect | recovered solar heat, and the detection information of the heat-medium temperature detection sensor is also operation-controlled. It is configured to be input to the device 20.

〔熱供給装置〕
図２に示すように、熱供給装置５は、熱源水循環ライン４の取り込み箇所Ｂ１に上流端部が接続されて熱源水循環ライン４の取り込み箇所Ｂ１よりも熱源水Ｎ１の流れ方向の下流側の戻し箇所Ｂ２に下流端部が接続された熱源水通流路２１と、その熱源水通流路２１の途中部位から分岐された給湯路２２とを備えている。これにより、熱源水循環ライン４を通流する熱源水Ｎ１の一部が常時熱源水通流路２１に通流自在となっており、熱源水通流路２１に熱源水循環ライン４から熱源水Ｎ１を取り入れている。そして、この熱源水通流路２１への熱源水Ｎ１の通流により給湯路２２には熱源水循環ライン４の熱源水Ｎ１の圧力が常時かかっており、その圧力により給湯路２２に対して熱源水Ｎ１を供給自在となっている。したがって、熱供給装置５は、熱源水循環ライン４から熱源水Ｎ１の少なくとも一部を常時取り込んで、その取り込んだ熱源水Ｎ１を熱消費部としての給湯栓等の給湯箇所２３に給湯自在に構成されている。 [Heat supply device]
As shown in FIG. 2, the heat supply device 5 is connected to the intake point B1 of the heat source water circulation line 4 so that the upstream end is connected to the downstream side in the flow direction of the heat source water N1 from the intake point B1 of the heat source water circulation line 4. A heat source water passage 21 having a downstream end connected to the location B2 and a hot water supply passage 22 branched from an intermediate portion of the heat source water passage 21 are provided. As a result, a part of the heat source water N1 flowing through the heat source water circulation line 4 can always flow through the heat source water flow path 21, and the heat source water N1 is supplied to the heat source water circulation path 21 from the heat source water circulation line 4. Incorporated. Then, the heat source water N1 flows into the heat source water passage 21 so that the pressure of the heat source water N1 in the heat source water circulation line 4 is constantly applied to the hot water supply passage 22, and the heat source water is applied to the hot water supply passage 22 by the pressure. N1 can be supplied freely. Accordingly, the heat supply device 5 is configured to always take at least a part of the heat source water N1 from the heat source water circulation line 4 and to supply hot water to a hot water supply location 23 such as a hot water tap as a heat consuming part. ing.

給湯路２２には、給湯箇所２３への給湯を断続自在な給湯制御弁２４が設けられている。また、給湯路２２には、熱源水Ｎ１に熱需要家用給水路５６から取り込んだ水Ｎ４を混合させる混合弁４４が備えられており、この混合弁４４にて熱源水Ｎ１に対する水Ｎ４の混合量を調整することで給湯目標温度に混合された湯水を給湯箇所２３に給湯自在に構成されている。   The hot water supply path 22 is provided with a hot water supply control valve 24 capable of intermittently supplying hot water to the hot water supply location 23. The hot water supply path 22 is provided with a mixing valve 44 for mixing the heat source water N1 with the water N4 taken from the heat consumer water supply path 56, and the mixing valve 44 mixes the water N4 with the heat source water N1. The hot water mixed at the hot water supply target temperature can be freely supplied to the hot water supply location 23 by adjusting the temperature.

ここで、熱源水通流路２１に通流せず熱源水循環ライン４をそのまま通流する熱源水Ｎ１の流量と熱源水通流路２１に取り込まれる熱源水Ｎ１の水量との比率は調整自在に構成されている。例えば、流路の抵抗等を調整することでその比率を調整することができ、その調整後の一定の比率に設定することができる。また、例えば、熱源水通流路２１や熱源水循環ライン４に流量調整弁等を設けることでその比率を可変にすることもできる。   Here, the ratio between the flow rate of the heat source water N1 that does not flow through the heat source water flow path 21 and flows through the heat source water circulation line 4 as it is and the amount of the heat source water N1 that is taken into the heat source water flow path 21 is adjustable. Has been. For example, the ratio can be adjusted by adjusting the resistance or the like of the flow path, and can be set to a fixed ratio after the adjustment. For example, the ratio can be made variable by providing a flow rate adjusting valve or the like in the heat source water passage 21 or the heat source water circulation line 4.

熱源水通流路２１には、給湯路２２の分岐箇所よりも上流側に、第１熱交換器２５及び第２熱交換器２６が設けられている。第１熱交換器２５は、熱源水循環ライン４から取り込んだ熱源水Ｎ１と暖房循環路２７にて循環される熱媒体とを熱交換させるように構成されている。そして、暖房循環路２７には暖房循環ポンプ２８が設けられ、この暖房循環ポンプ２８を作動させることで、第１熱交換器２５において熱源水Ｎ１にて加熱された熱媒体を床暖房パネル等の熱消費部としての暖房端末２９に循環供給する。第２熱交換器２６は、熱源水循環ライン４から取り込んだ熱源水Ｎ１とふろ循環路３０にて循環される浴槽水とを熱交換させるように構成されている。そして、ふろ循環路３０にはふろ循環ポンプ３１が設けられ、このふろ循環ポンプ３１を作動させることで、第２熱交換器２６において熱源水Ｎ１にて加熱された浴槽水を熱消費部としての浴槽３２に循環供給する。このように、熱供給装置５は、第１熱交換器２５及び第２熱交換器２６において熱源水循環ライン４から取り込んだ熱源水Ｎ１にて熱消費部に循環供給する熱媒体を加熱して、暖房端末２９や浴槽３２等の熱消費部への熱供給を行う。   The heat source water passage 21 is provided with a first heat exchanger 25 and a second heat exchanger 26 on the upstream side of the branch point of the hot water supply passage 22. The first heat exchanger 25 is configured to exchange heat between the heat source water N <b> 1 taken from the heat source water circulation line 4 and the heat medium circulated in the heating circulation path 27. The heating circulation path 27 is provided with a heating circulation pump 28. By operating the heating circulation pump 28, the heat medium heated by the heat source water N1 in the first heat exchanger 25 is converted into a floor heating panel or the like. It circulates and supplies to the heating terminal 29 as a heat consumption part. The second heat exchanger 26 is configured to exchange heat between the heat source water N1 taken from the heat source water circulation line 4 and the bathtub water circulated in the bath circulation path 30. Then, a bath circulation pump 31 is provided in the bath circulation path 30, and the bath water heated by the heat source water N1 in the second heat exchanger 26 is operated as the heat consuming section by operating the bath circulation pump 31. Circulatingly supplied to the bathtub 32. Thus, the heat supply device 5 heats the heat medium that is circulated and supplied to the heat consuming unit with the heat source water N1 taken from the heat source water circulation line 4 in the first heat exchanger 25 and the second heat exchanger 26, and Heat is supplied to the heat consuming parts such as the heating terminal 29 and the bathtub 32.

図示は省略するが、熱供給装置５の運転を制御する熱供給制御装置が設けられており、熱供給制御装置は、給湯制御弁２４、混合弁４４、暖房循環ポンプ２８、ふろ循環ポンプ３１の夫々の作動を各別に制御するように構成されている。そして、熱供給制御装置は、熱源水循環ライン４から取り込んだ熱源水Ｎ１を給湯路２２に給湯する給湯運転、暖房端末２９や浴槽３２の熱消費部にて熱を消費する熱消費運転の夫々を実行可能に構成されている。   Although not shown, a heat supply control device that controls the operation of the heat supply device 5 is provided. The heat supply control device includes a hot water supply control valve 24, a mixing valve 44, a heating circulation pump 28, and a bath circulation pump 31. Each operation is controlled separately. The heat supply control device performs a hot water supply operation in which the heat source water N1 taken in from the heat source water circulation line 4 is supplied to the hot water supply passage 22, and a heat consumption operation in which heat is consumed in the heat consuming portion of the heating terminal 29 and the bathtub 32, respectively. Configured to be executable.

給湯運転では、熱供給制御装置が、給湯栓等の開操作に伴って給湯制御弁２４を開動作させることで、熱源水循環ライン４から取り込んだ熱源水Ｎ１を給湯路２２を通して給湯箇所２３に給湯する。この給湯運転では、上述の如く、給湯路２２に備えられた混合弁４４にて混合後の湯水の温度が給湯目標温度となるように熱源水Ｎ１に対して熱需要家用給水路５６から取り込んだ水Ｎ４の混合量を調整している。そして、熱供給制御装置は、給湯栓等の閉操作に伴って給湯制御弁２４を閉動作させて給湯運転を終了する。   In the hot water supply operation, the heat supply control device opens the hot water supply control valve 24 in accordance with the opening operation of the hot water tap or the like, so that the heat source water N1 taken from the heat source water circulation line 4 is supplied to the hot water supply point 23 through the hot water supply passage 22. To do. In this hot water supply operation, as described above, the heat source water N1 is taken in from the hot water supply channel 56 so that the temperature of the hot water after mixing by the mixing valve 44 provided in the hot water supply channel 22 becomes the hot water supply target temperature. The mixing amount of water N4 is adjusted. Then, the heat supply control device closes the hot water supply control valve 24 in accordance with the closing operation of the hot water tap or the like, and ends the hot water supply operation.

熱供給制御装置は、熱消費運転として、暖房端末２９から運転開始要求があると暖房循環ポンプ２８を作動させることで、第１熱交換器２５において熱源水循環ライン４から取り込んだ熱源水Ｎ１にて熱媒体を加熱し、その加熱された熱媒体を暖房端末２９に循環供給して暖房運転を行う。そして、熱供給制御装置は、暖房端末２９から運転停止要求があると暖房循環ポンプ２８を作動停止させて暖房運転を終了する。
また、熱供給制御装置は、熱消費運転として、浴槽３２のリモコン等から追焚開始要求があるとふろ循環ポンプ３１を作動させることで、第２熱交換器２６において熱源水循環ライン４から取り込んだ熱源水Ｎ１にて浴槽水を加熱し、その加熱された浴槽水を浴槽３２に循環供給して浴槽水の追焚運転を行う。そして、熱供給制御装置は、浴槽３２のリモコン等から追焚停止要求があったり追焚開始から設定時間が経過すると、ふろ循環ポンプ３１を作動停止させて追焚運転を終了する。 As a heat consumption operation, the heat supply control device operates the heating circulation pump 28 when an operation start request is received from the heating terminal 29, so that the heat source water N1 taken from the heat source water circulation line 4 in the first heat exchanger 25 is used. The heating medium is heated, and the heated heating medium is circulated and supplied to the heating terminal 29 to perform the heating operation. And when there is an operation stop request from the heating terminal 29, the heat supply control device stops the heating circulation pump 28 and ends the heating operation.
In addition, the heat supply control device takes in the heat source water circulation line 4 in the second heat exchanger 26 by operating the bath circulation pump 31 when there is a renewal start request from the remote controller or the like of the bathtub 32 as the heat consumption operation. The bathtub water is heated by the heat source water N1, and the heated bathtub water is circulated and supplied to the bathtub 32 to perform a bath water renewal operation. The heat supply control device terminates the chasing operation by stopping the bath circulation pump 31 when there is a chasing stop request from the remote controller of the bathtub 32 or when a set time elapses from the chasing start.

〔熱源水循環運転〕
図１に戻り、運転制御装置２０による運転について説明する。
運転制御装置２０は、熱源装置２にて加熱された熱源水Ｎ１及び熱源水タンク１に貯留されている熱源水Ｎ１を熱源水循環ライン４にて循環させる熱源水循環運転を行う。この熱源水循環運転では、運転制御装置２０が、熱源装置２、排熱搬送流体循環ポンプ８、第１熱源水循環ポンプ９、及び、第２熱源水循環ポンプ１０を作動させて、排熱熱交換器７での排熱搬送流体Ｎ２による熱源水Ｎ１の加熱を行えるようにするとともに、その排熱熱交換器７にて加熱された熱源水Ｎ１及び熱源水タンク１に貯留されている熱源水Ｎ１を熱源水循環ライン４にて循環させる。また、運転制御装置２０は、太陽熱回収装置５１を作動させており、太陽熱熱交換器５２において熱媒体Ｎ３にて熱源水Ｎ１を加熱可能としている。 [Heat source water circulation operation]
Returning to FIG. 1, the operation by the operation control device 20 will be described.
The operation control device 20 performs a heat source water circulation operation in which the heat source water N1 heated in the heat source device 2 and the heat source water N1 stored in the heat source water tank 1 are circulated in the heat source water circulation line 4. In this heat source water circulation operation, the operation control device 20 operates the heat source device 2, the exhaust heat transfer fluid circulation pump 8, the first heat source water circulation pump 9, and the second heat source water circulation pump 10, and the exhaust heat exchanger 7 The heat source water N1 can be heated by the exhaust heat transfer fluid N2 in the heat source water N1 heated in the exhaust heat exchanger 7 and the heat source water N1 stored in the heat source water tank 1 is used as the heat source. Circulate in the water circulation line 4. Further, the operation control device 20 operates the solar heat recovery device 51, and the heat source water N1 can be heated by the heat medium N3 in the solar heat exchanger 52.

そして、運転制御装置２０は、熱源水循環ライン４にて複数の熱需要家に供給する熱源水Ｎ１の温度を目標温度範囲内の目標温度に調整するとともに、熱源水循環ライン４にて複数の熱需要家に供給する熱源水Ｎ１の流量を目標流量範囲内の目標流量に調整すべく、第１熱源水循環ポンプ９及び第２熱源水循環ポンプ１０の回転速度を制御する。   Then, the operation control device 20 adjusts the temperature of the heat source water N1 supplied to the plurality of heat consumers in the heat source water circulation line 4 to a target temperature within the target temperature range, and also uses the heat source water circulation line 4 for a plurality of heat demands. The rotational speeds of the first heat source water circulation pump 9 and the second heat source water circulation pump 10 are controlled in order to adjust the flow rate of the heat source water N1 supplied to the house to the target flow rate within the target flow rate range.

ここで、運転制御装置２０は、第１熱源水温度センサＴ１の検出温度を、熱源水循環ライン４にて複数の熱需要家に供給する熱源水Ｎ１の温度として取得しており、第１熱源水流量センサＲ１の検出流量を、熱源水循環ライン４にて複数の熱需要家に供給する熱源水Ｎ１の流量として取得している。よって、運転制御装置２０は、第１熱源水温度センサＴ１の検出温度が目標温度となり且つ第１熱源水流量センサＲ１の検出流量が目標流量となるように、第１熱源水循環ポンプ９及び第２熱源水循環ポンプ１０の回転速度を制御する。また、運転制御装置２０は、第２熱源水温度センサＴ２の検出温度を、熱源水循環ライン４にて熱源装置２に戻す熱源水Ｎ１の温度として取得しており、第２熱源水流量センサＲ２の検出流量を、熱源水循環ライン４にて熱源装置２に戻す熱源水Ｎ１の流量として取得している。   Here, the operation control device 20 acquires the temperature detected by the first heat source water temperature sensor T1 as the temperature of the heat source water N1 supplied to the plurality of heat consumers through the heat source water circulation line 4, and the first heat source water is obtained. The detected flow rate of the flow rate sensor R1 is acquired as the flow rate of the heat source water N1 supplied to a plurality of heat consumers through the heat source water circulation line 4. Therefore, the operation control apparatus 20 includes the first heat source water circulation pump 9 and the second heat source water circulation pump 9 and the second heat source water circulation pump 9 so that the detected temperature of the first heat source water temperature sensor T1 becomes the target temperature and the detected flow rate of the first heat source water flow rate sensor R1 becomes the target flow rate. The rotational speed of the heat source water circulation pump 10 is controlled. In addition, the operation control device 20 acquires the temperature detected by the second heat source water temperature sensor T2 as the temperature of the heat source water N1 returned to the heat source device 2 in the heat source water circulation line 4, and the second heat source water flow rate sensor R2 The detected flow rate is acquired as the flow rate of the heat source water N1 that is returned to the heat source device 2 by the heat source water circulation line 4.

例えば、運転制御装置２０は、第２熱源水循環ポンプ１０の回転速度を調整することで、排熱熱交換器７に供給する熱源水Ｎ１の流量を調整することができるので、運転制御装置２０は、第１熱源水温度センサＴ１の検出温度が目標温度になるように、第２熱源水循環ポンプ１０の回転速度を制御している。また、運転制御装置２０は、第２熱源水循環ポンプ１０の回転速度を制御しても、第１熱源水温度センサＴ１の検出温度が目標温度よりも低いと、通流制御弁１３を開弁動作させるとともに、補助加熱装置１１を作動させることで、第１熱源水温度センサＴ１の検出温度を目標温度に調整する。そして、運転制御装置２０は、第１熱源水流量センサＲ１の検出流量が目標流量になるように、第１熱源水循環ポンプ９の回転速度を制御する。ここで、目標流量は、下記の〔数１〕にて求められる。   For example, since the operation control device 20 can adjust the flow rate of the heat source water N1 supplied to the exhaust heat exchanger 7 by adjusting the rotation speed of the second heat source water circulation pump 10, the operation control device 20 The rotational speed of the second heat source water circulation pump 10 is controlled so that the temperature detected by the first heat source water temperature sensor T1 becomes the target temperature. Further, even when the operation control device 20 controls the rotation speed of the second heat source water circulation pump 10, if the detected temperature of the first heat source water temperature sensor T1 is lower than the target temperature, the flow control valve 13 is opened. In addition, by operating the auxiliary heating device 11, the temperature detected by the first heat source water temperature sensor T1 is adjusted to the target temperature. Then, the operation control device 20 controls the rotation speed of the first heat source water circulation pump 9 so that the detected flow rate of the first heat source water flow rate sensor R1 becomes the target flow rate. Here, the target flow rate is obtained by the following [Equation 1].

〔数１〕
ＦＱ１＝Ｆｓｅｔ＋Ｆｔ＋Ｆｆ
ここで、ＦＱ１が目標流量であり、Ｆｓｅｔが基準流量（例えば、５０戸の集合住宅を仮定した場合は３０〜６０リットル／ｍｉｎ、もう少し戸数が少ない場合は４０〜５０リットル／ｍｉｎ）であり、Ｆｔが温度降下による補正流量であり、Ｆｆが流量降下による補正流量である。 [Equation 1]
FQ1 = Fset + Ft + Ff
Here, FQ1 is a target flow rate, and Fset is a reference flow rate (for example, 30 to 60 liters / min when 50 apartments are assumed, 40 to 50 liters / min when the number of houses is slightly smaller), Ft is a corrected flow rate due to a temperature drop, and Ff is a corrected flow rate due to a flow rate drop.

そして、温度降下による補正流量Ｆｔは下記の〔数２〕にて求められ、流量降下による補正流量Ｆｆは下記の〔数３〕にて求められる。つまり、熱源水循環ライン４の戻り部位４ｂにて熱源装置２に戻す熱源水Ｎ１の流量をゼロよりも多い流量に確保しながら、熱源水循環ライン４の戻り部位４ｂにて熱源装置２に戻す熱源水Ｎ１の温度が６５℃以上になると、目標流量を低下させて熱需要家に供給する熱源水Ｎ１の流量を低下させ、熱源水循環ライン４の戻り部位４ｂにて熱源装置２に戻す熱源水Ｎ１の温度が６０℃以下になると、目標流量を増加させて熱需要家に供給する熱源水Ｎ１の流量を増加させる。   The corrected flow rate Ft due to the temperature drop is obtained by the following [Equation 2], and the corrected flow rate Ff caused by the flow rate drop is obtained by the following [Equation 3]. That is, the heat source water returned to the heat source device 2 at the return portion 4b of the heat source water circulation line 4 while ensuring the flow rate of the heat source water N1 returned to the heat source device 2 at the return portion 4b of the heat source water circulation line 4 to be greater than zero. When the temperature of N1 becomes 65 ° C. or higher, the target flow rate is reduced to reduce the flow rate of the heat source water N1 supplied to the heat consumer, and the heat source water N1 returned to the heat source device 2 at the return portion 4b of the heat source water circulation line 4 When the temperature is 60 ° C. or lower, the target flow rate is increased and the flow rate of the heat source water N1 supplied to the heat consumer is increased.

〔数２〕
Ｔａ＞６５℃の場合
Ｆｔ＝（６５−Ｔａ）×１×ａ
Ｔａ＜６０℃の場合
Ｆｔ＝（６０−Ｔａ）×２×ａ
ここで、Ｔａは熱源水循環ライン４の戻り部位４ｂにて熱源装置２に戻す熱源水Ｎ１の温度であり、具体的には第２熱源水温度センサＴ２の検出温度である。ａは温度を流量に換算するための定数である。 [Equation 2]
When Ta> 65 ° C. Ft = (65−Ta) × 1 × a
When Ta <60 ° C. Ft = (60−Ta) × 2 × a
Here, Ta is the temperature of the heat source water N1 returned to the heat source device 2 at the return part 4b of the heat source water circulation line 4, and specifically, the detected temperature of the second heat source water temperature sensor T2. a is a constant for converting the temperature into a flow rate.

〔数３〕
Ｆｆ＝（ＦＱ２−ＦＱ３）／１．５
ここで、ＦＱ２は熱源水循環ライン４にて複数の熱需要家に供給する熱源水Ｎ１の流量であり、具体的には第１熱源水流量センサＲ１の検出流量である。ＦＱ３は熱源水循環ライン４の戻り部位４ｂにて熱源装置２に戻す熱源水Ｎ１の流量であり、具体的には第２熱源水流量センサＲ２の検出流量である。 [Equation 3]
Ff = (FQ2-FQ3) /1.5
Here, FQ2 is a flow rate of the heat source water N1 supplied to a plurality of heat consumers in the heat source water circulation line 4, and specifically a detected flow rate of the first heat source water flow rate sensor R1. FQ3 is a flow rate of the heat source water N1 that is returned to the heat source device 2 at the return portion 4b of the heat source water circulation line 4, and specifically, a detected flow rate of the second heat source water flow rate sensor R2.

上述の如く、熱源水循環運転では、熱源装置２にて加熱された熱源水Ｎ１及び熱源水タンク１に貯留されている熱源水Ｎ１を熱源水循環ライン４にて複数の熱需要家に供給するのであるが、本発明に係る熱源水供給システムでは、熱源装置２に加えて、太陽熱熱交換器５２を備えており、熱源装置２の熱だけでなく、太陽熱によっても、熱源水Ｎ１を加熱可能となっている。しかしながら、太陽熱回収装置５１では、夏季以外に十分な太陽熱を回収できず、熱源水Ｎ１を加熱できるまで熱媒体Ｎ３の温度を高くすることができない可能性がある。そこで、本発明に係る熱源水供給システムでは、上述の如く、太陽熱熱交換器５３に加えて、給水予熱熱交換器５４を備えており、熱媒体循環路５３の通流状態切換用三方弁５７により熱媒体Ｎ３を太陽熱熱交換器５２に通流させる第１通流状態（図中実線矢印参照）と熱媒体Ｎ３を給水予熱熱交換器５４に通流させる第２通流状態（図中点線矢印参照）とに切換自在に構成されている。   As described above, in the heat source water circulation operation, the heat source water N1 heated in the heat source device 2 and the heat source water N1 stored in the heat source water tank 1 are supplied to a plurality of heat consumers through the heat source water circulation line 4. However, in the heat source water supply system according to the present invention, the solar heat exchanger 52 is provided in addition to the heat source device 2, and the heat source water N1 can be heated not only by the heat of the heat source device 2 but also by solar heat. ing. However, the solar heat recovery device 51 may not be able to recover sufficient solar heat except during summer, and may not be able to increase the temperature of the heat medium N3 until the heat source water N1 can be heated. Therefore, in the heat source water supply system according to the present invention, the feed water preheating heat exchanger 54 is provided in addition to the solar heat exchanger 53 as described above, and the three-way valve 57 for switching the flow state of the heat medium circulation path 53 is provided. The first flow state in which the heat medium N3 flows through the solar heat exchanger 52 (see the solid line arrow in the figure) and the second flow state in which the heat medium N3 flows through the feed water preheating heat exchanger 54 (dotted line in the figure) (Refer to the arrow).

第１通流状態と第２通流状態との切り換えについては、運転制御装置２０が、太陽熱回収装置５１にて回収した太陽熱を有する熱媒体Ｎ３の温度と太陽熱熱交換器５２に供給される熱源水Ｎ１の温度とを比較して、第１通流状態と第２通流状態とに切り換えている。このように、通流状態切換手段が、運転制御装置２０及び通流状態切換用三方弁５７から構成されている。運転制御装置２０は、太陽熱回収装置５１に備えられた図外の熱媒体温度検出センサの検出温度を、太陽熱回収装置５１にて回収した太陽熱を有する熱媒体Ｎ３の温度として取得しており、第３熱源水温度センサＴ３の検出温度を、太陽熱熱交換器５２に供給される熱源水Ｎ１の温度として取得している。   Regarding the switching between the first flow state and the second flow state, the operation control device 20 uses the solar heat recovery device 51 to recover the temperature of the heat medium N3 having solar heat and the heat source supplied to the solar heat exchanger 52. The temperature of the water N1 is compared to switch between the first flow state and the second flow state. As described above, the flow state switching means includes the operation control device 20 and the flow state switching three-way valve 57. The operation control device 20 acquires the detected temperature of the heat medium temperature detection sensor (not shown) provided in the solar heat recovery device 51 as the temperature of the heat medium N3 having solar heat recovered by the solar heat recovery device 51, and The temperature detected by the three heat source water temperature sensor T3 is acquired as the temperature of the heat source water N1 supplied to the solar heat exchanger 52.

運転制御装置２０は、太陽熱回収装置５１に備えられた熱媒体温度検出センサの検出温度が第３熱源水温度センサＴ３の検出温度よりも高い場合には、通流状態切換用三方弁５７を第１通流状態に切り換えて太陽熱熱交換器５２に熱媒体Ｎ３を通流させ、太陽熱回収装置５１に備えられた熱媒体温度検出センサの検出温度が第３熱源水温度センサＴ３の検出温度以下である場合には、通流状態切換用三方弁５７を第２通流状態に切り換えて給水予熱熱交換器５４に熱媒体Ｎ３を通流させている。   When the detected temperature of the heat medium temperature detection sensor provided in the solar heat recovery device 51 is higher than the detected temperature of the third heat source water temperature sensor T3, the operation control device 20 sets the three-way valve 57 for switching the flow state. The heat medium N3 is passed through the solar heat exchanger 52 by switching to the one-flow state, and the detection temperature of the heat medium temperature detection sensor provided in the solar heat recovery device 51 is equal to or lower than the detection temperature of the third heat source water temperature sensor T3. In some cases, the flow state switching three-way valve 57 is switched to the second flow state so that the heat medium N3 flows through the feed water preheating heat exchanger 54.

例えば、太陽熱熱交換器５２に供給される熱源水Ｎ１の温度（第３熱源水温度センサＴ３の検出温度）よりも切換用設定温度（例えば５℃）だけ高い温度を切換基準温度とすると、太陽熱回収装置５１に備えられた熱媒体温度検出センサの検出温度が切換基準温度以上であれば、通流状態切換用三方弁５７を第１通流状態に切り換える。上水温度よりも上水用設定温度（例えば５℃）だけ高い温度を上水基準温度とすると、太陽熱回収装置５１に備えられた熱媒体温度検出センサの検出温度が切換基準温度未満で且つ上水基準温度よりも高いと、通流状態切換用三方弁５７を第２通流状態に切り換える。そして、太陽熱回収装置５１に備えられた熱媒体温度検出センサの検出温度が上水基準温度以下であると、太陽熱回収装置５１を作動停止させることができる。
具体的には、例えば、冬季では、太陽熱熱交換器５２に供給される熱源水Ｎ１の温度（第３熱源水温度センサＴ３の検出温度）が６０℃程度であるが、給水の補給により太陽熱熱交換器５２に供給される熱源水Ｎ１の温度（第３熱源水温度センサＴ３の検出温度）が６０℃よりも低くなるので、太陽熱回収装置５１に備えられた熱媒体温度検出センサの検出温度が６０℃以上であると、通流状態切換用三方弁５７を第１通流状態に切り換え、太陽熱回収装置５１に備えられた熱媒体温度検出センサの検出温度が６０℃未満であると、通流状態切換用三方弁５７を第２通流状態に切り換えることができる。また、夏季では、後述する如く、熱源水循環ライン４にて複数の熱需要家に供給する熱源水Ｎ１の温度を低温用目標温度範囲内に調整する低温調整状態に切り換えることで、複数の熱需要家に供給する熱源水Ｎ１の温度を低くしており（例えば６０℃程度）、太陽熱熱交換器５２に供給される熱源水Ｎ１の温度（第３熱源水温度センサＴ３の検出温度）が例えば４０℃程度となる。よって、太陽熱回収装置５１に備えられた熱媒体温度検出センサの検出温度が４５℃以上であると、通流状態切換用三方弁５７を第１通流状態に切り換え、太陽熱回収装置５１に備えられた熱媒体温度検出センサの検出温度が４５℃未満であると、通流状態切換用三方弁５７を第２通流状態に切り換えることができる。 For example, assuming that a switching reference temperature is a temperature that is higher than the temperature of the heat source water N1 supplied to the solar heat exchanger 52 (the detected temperature of the third heat source water temperature sensor T3) by a switching set temperature (for example, 5 ° C.), If the temperature detected by the heat medium temperature detection sensor provided in the recovery device 51 is equal to or higher than the switching reference temperature, the flow state switching three-way valve 57 is switched to the first flow state. If the temperature that is higher than the water temperature by a set temperature for water supply (for example, 5 ° C.) is set as the water reference temperature, the temperature detected by the heat medium temperature detection sensor provided in the solar heat recovery device 51 is less than the switching reference temperature and When the temperature is higher than the water reference temperature, the flow state switching three-way valve 57 is switched to the second flow state. Then, when the detected temperature of the heat medium temperature detection sensor provided in the solar heat recovery device 51 is equal to or lower than the water supply reference temperature, the solar heat recovery device 51 can be deactivated.
Specifically, for example, in winter, the temperature of the heat source water N1 supplied to the solar heat exchanger 52 (detected temperature of the third heat source water temperature sensor T3) is about 60 ° C., Since the temperature of the heat source water N1 supplied to the exchanger 52 (detected temperature of the third heat source water temperature sensor T3) is lower than 60 ° C., the detection temperature of the heat medium temperature detection sensor provided in the solar heat recovery device 51 is When the temperature is 60 ° C. or higher, the flow direction switching three-way valve 57 is switched to the first flow state, and when the temperature detected by the heat medium temperature detection sensor provided in the solar heat recovery device 51 is lower than 60 ° C. The state switching three-way valve 57 can be switched to the second flow state. Further, in the summer, as described later, the heat source water circulation line 4 switches to a low temperature adjustment state in which the temperature of the heat source water N1 supplied to a plurality of heat consumers is adjusted within the target temperature range for low temperature, thereby a plurality of heat demands. The temperature of the heat source water N1 supplied to the house is lowered (for example, about 60 ° C.), and the temperature of the heat source water N1 supplied to the solar heat exchanger 52 (detected temperature of the third heat source water temperature sensor T3) is, for example, 40. It becomes about ℃. Therefore, when the detected temperature of the heat medium temperature detection sensor provided in the solar heat recovery device 51 is 45 ° C. or higher, the flow state switching three-way valve 57 is switched to the first flow state, and the solar heat recovery device 51 is provided. If the detected temperature of the heat medium temperature detection sensor is lower than 45 ° C., the flow state switching three-way valve 57 can be switched to the second flow state.

これにより、太陽熱回収装置５１にて回収した太陽熱を有する熱媒体Ｎ３にて熱源水Ｎ１を加熱できる場合には、第１通流状態に切り換えて太陽熱にて熱源水Ｎ１を加熱しており、それ以外の場合には、第２通流状態に切り換えて複数の熱需要家に給水する水Ｎ４を予熱している。その結果、熱源水Ｎ１を加熱する熱源として太陽熱を用いることができながら、複数の熱需要家に給水する水Ｎ４の予熱のためにも太陽熱を用いることができ、システムとして太陽熱を有効に活用してエネルギー効率の向上を図ることができる。   Thereby, when the heat source water N1 can be heated by the heat medium N3 having solar heat recovered by the solar heat recovery device 51, the heat source water N1 is heated by solar heat by switching to the first flow state, In other cases, the water N4 supplied to a plurality of heat consumers is preheated by switching to the second flow state. As a result, while the solar heat can be used as a heat source for heating the heat source water N1, the solar heat can be used for preheating water N4 supplied to a plurality of heat consumers, and the solar heat is effectively utilized as a system. Energy efficiency can be improved.

また、運転制御装置２０は、熱源水循環ライン４にて複数の熱需要家に供給する熱源水Ｎ１の温度を高温用目標温度範囲内に調整する高温調整状態と低温用目標温度範囲内に調整する低温調整状態とに切換自在に構成されている。つまり、上述の如く、運転制御装置２０は、第１熱源水温度センサＴ１の検出温度が目標温度範囲内の目標温度になるように、第１熱源水循環ポンプ９及び第２熱源水循環ポンプ１０の回転速度を制御しているが、このときの目標温度として、高温用目標温度範囲内の高温用目標温度と低温用目標温度範囲内の低温用目標温度とに変更設定自在に構成されている。このように、熱源水温度調整手段が、運転制御装置２０、第１熱源水循環ポンプ９及び第２熱源水循環ポンプ１０から構成されている。そして、運転制御装置２０は、目標温度を高温用目標温度に設定することで高温調整状態に切り換え、目標温度を低温用目標温度に設定することで低温調整状態に切り換えている。ここで、高温用目標温度は、例えば８０℃程度であり、低温用目標温度は、例えば６０℃程度である。   Further, the operation control device 20 adjusts the temperature of the heat source water N1 supplied to the plurality of heat consumers in the heat source water circulation line 4 to a high temperature adjustment state in which the temperature is within the high temperature target temperature range and to a low temperature target temperature range. It is configured to be switchable to a low temperature adjustment state. That is, as described above, the operation control device 20 rotates the first heat source water circulation pump 9 and the second heat source water circulation pump 10 so that the temperature detected by the first heat source water temperature sensor T1 becomes the target temperature within the target temperature range. Although the speed is controlled, the target temperature at this time is configured to be freely changeable between a high temperature target temperature within the high temperature target temperature range and a low temperature target temperature within the low temperature target temperature range. As described above, the heat source water temperature adjusting means includes the operation control device 20, the first heat source water circulation pump 9, and the second heat source water circulation pump 10. The operation control device 20 switches to the high temperature adjustment state by setting the target temperature to the high temperature target temperature, and switches to the low temperature adjustment state by setting the target temperature to the low temperature target temperature. Here, the target temperature for high temperature is, for example, about 80 ° C., and the target temperature for low temperature is, for example, about 60 ° C.

高温調整状態と低温調整状態との切り換えについては、運転制御装置２０にはカレンダー機能が内蔵されており、そのカレンダー機能により夏季であるか否かを判別して、高温調整状態と低温調整状態とに切り換えている。つまり、運転制御装置２０は、夏季には低温調整状態に切り換え、夏季以外であれば高温調整状態に切り換えている。夏季には、各熱需要家の熱需要が少ないので、低温調整状態に切り換えても、複数の熱需要家の熱需要を賄えるだけの熱源水Ｎ１を供給することができる。しかも、低温調整状態に切り換えることで、太陽熱熱交換器５２に供給される熱源水Ｎ１の温度をより低くすることができる。よって、太陽熱熱交換器５２において熱源水Ｎ１と熱媒体Ｎ３との温度差をより大きくすることができ、太陽熱を有する熱媒体Ｎ３にて熱源水Ｎ１を効率よく加熱することができる。   Regarding the switching between the high temperature adjustment state and the low temperature adjustment state, the operation control device 20 has a built-in calendar function, and it is determined whether or not it is summer by the calendar function, and the high temperature adjustment state and the low temperature adjustment state are set. Has been switched to. In other words, the operation control device 20 switches to the low temperature adjustment state in the summer, and switches to the high temperature adjustment state except in the summer. In summer, since the heat demand of each heat consumer is small, the heat source water N1 that can cover the heat demand of a plurality of heat consumers can be supplied even if it is switched to the low temperature adjustment state. Moreover, the temperature of the heat source water N1 supplied to the solar heat exchanger 52 can be lowered by switching to the low temperature adjustment state. Therefore, the temperature difference between the heat source water N1 and the heat medium N3 can be increased in the solar heat exchanger 52, and the heat source water N1 can be efficiently heated by the heat medium N3 having solar heat.

〔第２実施形態〕
この第２実施形態は、上記第１実施形態において太陽熱熱交換器５２の設置位置についての別実施形態であり、その他の構成については、上記第１実施形態と同様である。そこで、以下、本発明に係る熱源水供給システムの全体構成の一部のみを示した図３に基づいて、第２実施形態について説明するが、上記第１実施形態と異なる構成である太陽熱熱交換器５２の設置位置を中心に説明し、その他の構成については説明を省略する。 [Second Embodiment]
This 2nd Embodiment is another embodiment about the installation position of the solar heat exchanger 52 in the said 1st Embodiment, About another structure, it is the same as that of the said 1st Embodiment. Therefore, hereinafter, the second embodiment will be described based on FIG. 3 showing only a part of the entire configuration of the heat source water supply system according to the present invention, but the solar heat heat exchange having a configuration different from the first embodiment will be described. The description will focus on the installation position of the device 52, and the description of other components will be omitted.

上記第１実施形態では、太陽熱熱交換器５２を、熱源水循環ライン４において複数の熱需要家に供給したのち熱源装置２に熱源水Ｎ１を戻す戻り部位４ｂに配設しているが、この第２実施形態では、図３に示すように、太陽熱熱交換器５２を熱源水タンク１の下部に配設し、太陽熱熱交換器５２において熱媒体Ｎ３にて熱源水タンク１の下部の熱源水Ｎ１を加熱している。   In the said 1st Embodiment, although the solar heat exchanger 52 is arrange | positioned in the return part 4b which returns the heat source water N1 to the heat source apparatus 2 after supplying to a several heat consumer in the heat source water circulation line 4, this 1st In 2 embodiment, as shown in FIG. 3, the solar heat exchanger 52 is arrange | positioned in the lower part of the heat source water tank 1, and the heat source water N1 of the lower part of the heat source water tank 1 by the heat medium N3 in the solar heat heat exchanger 52 is shown. Is heating up.

運転制御装置２０が熱源水循環運転を実行中に、熱需要家の熱供給装置５にて給湯運転を行われると、熱源水循環ライン４の熱源水Ｎ１が給湯箇所２３に給湯される。よって、熱源水循環ライン４の熱源水Ｎ１の流量が減少することになるが、熱源水タンク１に貯留されている熱源水Ｎ１が熱源水循環ライン４に補給される。熱源水タンク１の下部には、給水手段３により低温の熱源水Ｎ１が給水されるので、熱源水循環ライン４に補給される低温の熱源水Ｎ１を熱媒体Ｎ３の放熱対象とする低温通流部位に太陽熱熱交換器５２が配設されている。このように、太陽熱熱交換器５２における熱媒体Ｎ３の放熱対象を、給水手段３により熱源水タンク１の下部に給水される低温の熱源水Ｎ１とすることができ、太陽熱熱交換器５２において熱源水Ｎ１と熱媒体Ｎ３との温度差をより大きくすることができ、太陽熱を有する熱媒体Ｎ３にて熱源水Ｎ１を効率よく加熱することができる。   If the hot water supply operation is performed by the heat supply device 5 of the heat consumer while the operation control device 20 is performing the heat source water circulation operation, the heat source water N1 of the heat source water circulation line 4 is supplied to the hot water supply location 23. Accordingly, the flow rate of the heat source water N1 in the heat source water circulation line 4 decreases, but the heat source water N1 stored in the heat source water tank 1 is supplied to the heat source water circulation line 4. Since the low-temperature heat source water N1 is supplied to the lower part of the heat source water tank 1 by the water supply means 3, the low-temperature flow-through portion where the low-temperature heat source water N1 replenished to the heat source water circulation line 4 is a heat dissipation target of the heat medium N3 The solar heat exchanger 52 is disposed in the front. Thus, the heat radiation target of the heat medium N3 in the solar heat exchanger 52 can be the low-temperature heat source water N1 supplied to the lower part of the heat source water tank 1 by the water supply means 3, and the heat source in the solar heat exchanger 52 The temperature difference between the water N1 and the heat medium N3 can be increased, and the heat source water N1 can be efficiently heated by the heat medium N3 having solar heat.

〔別実施形態〕
（１）上記第１及び第２実施形態では、第１通流状態と第２通流状態との切り換えについて、太陽熱回収装置５１にて回収した太陽熱を有する熱媒体Ｎ３の温度と太陽熱熱交換器５２に供給される熱源水Ｎ１の温度との大小関係に基づいて、第１通流状態と第２通流状態とに切り換えているが、例えば、夏季には第１通流状態に切り換え、夏季以外には第２通流状態に切り換えることもできる。また、昼間には第１通流状態に切り換え、朝や晩には第２通流状態に切り換えることもでき、第１通流状態と第２通流状態とに切り換えるための条件については適宜変更が可能である。 [Another embodiment]
(1) In the first and second embodiments, the temperature of the heat medium N3 having solar heat recovered by the solar heat recovery device 51 and the solar heat exchanger for switching between the first flow state and the second flow state. On the basis of the magnitude relationship with the temperature of the heat source water N1 supplied to 52, the first flow state and the second flow state are switched. For example, in the summer, the first flow state is switched to the first flow state. In addition, it is possible to switch to the second flow state. It is also possible to switch to the first flow state during the daytime and to the second flow state in the morning or evening, and the conditions for switching between the first flow state and the second flow state are changed as appropriate. Is possible.

（２）上記第１及び第２実施形態において、熱供給装置５について、熱源水循環ライン４から取り込んだ熱源水Ｎ１が有する熱を蓄熱可能な蓄熱タンクを備えた構成を適応することもできる。例えば、熱源水循環ライン４から取り込んだ熱源水Ｎ１を蓄熱タンクに通流させることで蓄熱タンクへの蓄熱を行い、蓄熱タンクに蓄熱された熱にて加熱した温水や熱源水循環ライン４から取り込んだ熱源水Ｎ１を給湯箇所２３に給湯することで給湯運転を行い、蓄熱タンクに蓄熱された熱にて加熱した熱媒体を熱消費部に供給することで熱消費運転を行うことができる。
このように、熱供給装置５については、熱源水循環ライン４から取り込んだ熱源水Ｎ４を利用して熱消費部への熱供給を行うものであればよい。 (2) In the said 1st and 2nd embodiment, the structure provided with the heat storage tank which can heat-store the heat which the heat source water N1 taken in from the heat source water circulation line 4 has about the heat supply apparatus 5 is also adaptable. For example, the heat source water N1 taken from the heat source water circulation line 4 is passed through the heat storage tank to store heat in the heat storage tank, and the heat source heated from the heat stored in the heat storage tank or the heat source water taken from the heat source water circulation line 4 A hot water supply operation is performed by supplying hot water to the hot water supply location 23, and a heat consumption operation can be performed by supplying a heat medium heated by heat stored in the heat storage tank to the heat consuming unit.
Thus, the heat supply device 5 only needs to supply heat to the heat consuming unit using the heat source water N4 taken from the heat source water circulation line 4.

（３）上記第１及び第２実施形態では、給水予熱熱交換器５４にて予熱された給水Ｎ４を給湯箇所２３への給湯に用いる例を示しているが、例えば、寒冷地では、駐車場等の地面を温めて融雪に使用するロードヒーティングの温水として、給水予熱熱交換器５４にて予熱された給水Ｎ４を用いることもできる。つまり、給水予熱熱交換器５４にて予熱された給水Ｎ４を各熱需要家にてどのように用いるかについては適宜変更が可能であり、給湯に用いるものに限られない。 (3) In the first and second embodiments described above, an example is shown in which the water supply N4 preheated by the water supply preheating heat exchanger 54 is used for hot water supply to the hot water supply location 23. The water N4 preheated by the feed water preheating heat exchanger 54 can also be used as warm water for road heating used for melting snow by warming the ground. That is, how to use the feed water N4 preheated by the feed water preheating heat exchanger 54 at each heat consumer can be changed as appropriate, and is not limited to that used for hot water supply.

本発明は、熱源装置にて加熱された熱源水を複数の熱需要家に順に供給して前記熱源装置に戻す熱源水循環ラインを備え、各熱需要家には、前記熱源水循環ラインから熱源水を取り込んでその取り込んだ熱源水を前記熱源水循環ラインの取り込み箇所よりも熱源水の流れ方向の下流側に戻すとともに、取り込んだ熱源水を利用して熱消費部への熱供給を行う熱供給装置が備えられ、熱源水を加熱するための熱源として太陽熱を用いることができながら、システム全体としてその太陽熱を有効に活用して、エネルギー効率の向上を図ることができる各種の熱源水供給システムに適応可能である。   The present invention includes a heat source water circulation line that sequentially supplies heat source water heated by a heat source device to a plurality of heat consumers and returns the heat source water to the heat source device, and each heat consumer receives heat source water from the heat source water circulation line. A heat supply device that takes in the heat source water that has been taken in and returns the heat source water to the downstream side in the flow direction of the heat source water from the intake location of the heat source water circulation line, and supplies heat to the heat consuming section using the taken heat source water. It can be applied to various heat source water supply systems that can use solar heat as a heat source to heat the heat source water, but can effectively use the solar heat as a whole system to improve energy efficiency. It is.

１，３ 補給手段
２ 熱源装置
４ 熱源水循環ライン
５ 熱供給装置
９，１０，２０ 熱源水温度調整手段
２０，５７ 通流状態切換手段
２３ 給湯箇所
２９ 熱消費部（暖房端末）
３２ 熱消費部（浴槽）
５１ 太陽熱回収装置
５２ 太陽熱熱交換器
５４ 給水予熱熱交換器
Ｎ１ 熱源水
Ｎ３ 熱媒体
Ｎ４ 複数の熱需要家に給水する水 DESCRIPTION OF SYMBOLS 1,3 Supply means 2 Heat source apparatus 4 Heat source water circulation line 5 Heat supply apparatus 9, 10, 20 Heat source water temperature adjustment means 20, 57 Flow state switching means 23 Hot water supply location 29 Heat consumption part (heating terminal)
32 Heat Consumption Department (bathtub)
51 Solar heat recovery device 52 Solar heat exchanger 54 Water supply preheating heat exchanger N1 Heat source water N3 Heat medium N4 Water supplied to a plurality of heat consumers

Claims (6)

熱源装置にて加熱された熱源水を複数の熱需要家に順に供給して前記熱源装置に戻す熱源水循環ラインを備え、各熱需要家には、前記熱源水循環ラインから熱源水を取り込んでその取り込んだ熱源水を前記熱源水循環ラインの取り込み箇所よりも熱源水の流れ方向の下流側に戻すとともに、取り込んだ熱源水を利用して熱消費部への熱供給を行う熱供給装置が備えられている熱源水供給システムであって、
前記熱源水循環ラインにおいて複数の熱需要家に供給する熱源水よりも低温の熱源水が通流する低温通流部位には、太陽熱回収装置にて回収した太陽熱を有する熱媒体と熱源水とを熱交換させる太陽熱熱交換器が備えられ、
複数の熱需要家に給水する水と前記太陽熱回収装置にて回収した太陽熱を有する熱媒体とを熱交換させる給水予熱熱交換器と、前記太陽熱回収装置にて回収した太陽熱を有する熱媒体を前記太陽熱熱交換器に通流する第１通流状態と前記給水予熱熱交換器に通流する第２通流状態とに切換自在な通流状態切換手段とが備えられている熱源水供給システム。 A heat source water circulation line that sequentially supplies heat source water heated by the heat source device to a plurality of heat consumers and returns the heat source water to the heat source device is provided, and each heat consumer takes in the heat source water from the heat source water circulation line. The heat source water is returned to the downstream side in the flow direction of the heat source water from the intake location of the heat source water circulation line, and a heat supply device that supplies heat to the heat consuming part using the taken heat source water is provided. A heat source water supply system,
In the heat source water circulation line, the heat source water having the solar heat recovered by the solar heat recovery device and the heat source water are heated in a low temperature flow portion through which heat source water having a temperature lower than heat source water supplied to a plurality of heat consumers flows. A solar heat exchanger to replace,
A water supply preheating heat exchanger for exchanging heat between water supplied to a plurality of heat consumers and a heat medium having solar heat recovered by the solar heat recovery device, and a heat medium having solar heat recovered by the solar heat recovery device A heat source water supply system provided with a flow state switching means capable of switching between a first flow state flowing through the solar heat exchanger and a second flow state flowing through the feed water preheating heat exchanger. 前記熱源水循環ラインの前記低温通流部位は、複数の熱需要家に供給したのち前記熱源装置に熱源水を戻す部位に設定されている請求項１に記載の熱源水供給システム。   2. The heat source water supply system according to claim 1, wherein the low-temperature flow part of the heat source water circulation line is set to a part where the heat source water is returned to the heat source device after being supplied to a plurality of heat consumers. 前記熱源水循環ライン内の熱源水の減少に伴って熱源水を補給する補給手段を備え、前記熱源水循環ラインの前記低温通流部位は、前記熱源水循環ラインに前記補給手段により熱源水を補給する部位に設定されている請求項１に記載の熱源水供給システム。   A replenishing means for replenishing the heat source water as the heat source water in the heat source water circulation line decreases, and the low temperature flow area of the heat source water circulation line is a part for replenishing the heat source water circulation line with the heat source water by the replenishment means The heat source water supply system according to claim 1, wherein 前記熱源水循環ライン内の熱源水の減少に伴って熱源水を補給する補給手段を備え、前記熱供給装置は、前記熱源水循環ラインから取り込んだ熱源水を前記熱消費部としての給湯箇所に給湯自在に構成されている請求項１〜３の何れか１項に記載の熱源水供給システム。   Replenishment means for replenishing the heat source water as the heat source water in the heat source water circulation line decreases, and the heat supply device can freely supply the heat source water taken from the heat source water circulation line to the hot water supply location as the heat consuming part The heat source water supply system according to any one of claims 1 to 3, wherein the heat source water supply system is configured as follows. 前記通流状態切換手段が、前記太陽熱回収装置にて回収した太陽熱を有する熱媒体の温度が前記太陽熱熱交換器に供給される熱源水の温度よりも高いと、前記第１通流状態に切り換え、前記熱媒体の温度が前記熱源水の温度以下であると、前記第２通流状態に切り換える請求項１〜４の何れか１項に記載の熱源水供給システム。   When the temperature of the heat medium having solar heat recovered by the solar heat recovery device is higher than the temperature of the heat source water supplied to the solar heat exchanger, the flow state switching means switches to the first flow state. The heat source water supply system according to any one of claims 1 to 4, wherein the heat medium is switched to the second flow state when the temperature of the heat medium is equal to or lower than the temperature of the heat source water. 前記熱源水循環ラインにて複数の熱需要家に供給する熱源水の温度を高温用目標温度範囲内に調整する高温調整状態と低温用目標温度範囲内に調整する低温調整状態とに切換自在な熱源水温度調整手段が備えられている請求項１〜５の何れか１項に記載の熱源水供給システム。   A heat source that can be switched between a high temperature adjustment state in which the temperature of the heat source water supplied to a plurality of heat consumers in the heat source water circulation line is adjusted within a high temperature target temperature range and a low temperature adjustment state in which the temperature is adjusted within a low temperature target temperature range. The heat source water supply system according to any one of claims 1 to 5, further comprising a water temperature adjusting means.
JP2010027935A 2010-02-10 2010-02-10 Heat source water supply system Expired - Fee Related JP5480655B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010027935A JP5480655B2 (en) 2010-02-10 2010-02-10 Heat source water supply system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010027935A JP5480655B2 (en) 2010-02-10 2010-02-10 Heat source water supply system

Publications (2)

Publication Number Publication Date
JP2011163680A JP2011163680A (en) 2011-08-25
JP5480655B2 true JP5480655B2 (en) 2014-04-23

Family

ID=44594578

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010027935A Expired - Fee Related JP5480655B2 (en) 2010-02-10 2010-02-10 Heat source water supply system

Country Status (1)

Country Link
JP (1) JP5480655B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013057435A (en) * 2011-09-07 2013-03-28 Osaka Gas Co Ltd Heat supply system
JP2013057436A (en) * 2011-09-07 2013-03-28 Osaka Gas Co Ltd Heat supply system
JP5961565B2 (en) * 2013-01-28 2016-08-02 東京瓦斯株式会社 Feed water preheating system and feed water temperature control method for feed water preheating system
WO2018142473A1 (en) * 2017-01-31 2018-08-09 三菱電機株式会社 Heat medium circulation system
CN109185969A (en) * 2017-06-30 2019-01-11 刘勇 Electric heating energy storage heating system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS575495Y2 (en) * 1977-11-17 1982-02-02
JPS59134431A (en) * 1983-01-20 1984-08-02 Matsushita Electric Works Ltd Solar heat-utilizing hot water supply and heater in combination
JP4576264B2 (en) * 2005-03-09 2010-11-04 大阪瓦斯株式会社 Heat supply system
JP4574592B2 (en) * 2006-05-24 2010-11-04 リンナイ株式会社 Linked hot water system
JP2009281644A (en) * 2008-05-21 2009-12-03 Daikin Ind Ltd Heating system

Also Published As

Publication number Publication date
JP2011163680A (en) 2011-08-25

Similar Documents

Publication Publication Date Title
DK2438358T3 (en) Heating System
US9010281B2 (en) Hot water supply system
JP5228789B2 (en) Water heater
JP5347654B2 (en) Hot water storage hot water supply system
JP5480655B2 (en) Heat source water supply system
JP4934009B2 (en) Heat source water supply system
KR101058908B1 (en) Solar cooling and heating system
JP2007198708A (en) Hybrid hot water supply system
JP6107958B2 (en) Heat storage system
JP5589943B2 (en) Hot water storage water heater
CZ31064U1 (en) A combined system of service water heating and a heating medium for domestic heating
JP5311128B2 (en) Hot water storage hot water supply system
JP5472178B2 (en) Hot water heater
JP5828219B2 (en) Cogeneration system, waste heat utilization apparatus, cogeneration system control method, and heat pump hot water supply apparatus
JP6104208B2 (en) Solar thermal gas hot water system
JP5944614B2 (en) Heat source equipment
JP5192778B2 (en) Hot water heater
JP2008045841A (en) Hot water storage type hot water supply system and cogeneration system
JP2012107793A (en) Hot water supply system
JP5745911B2 (en) Heat supply system
JP2012057932A (en) Heating medium supply apparatus
JP6280787B2 (en) Cogeneration system
GB2486491A (en) Water heating system and a method of supplying hot water
JP4953436B2 (en) Thermal storage and heat dissipation system
JP5616647B2 (en) Heat source water supply system

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20121204

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20131127

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20140116

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20140214

R150 Certificate of patent or registration of utility model

Ref document number: 5480655

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees