JPH0886517A - Heat supplying facility - Google Patents
Heat supplying facilityInfo
- Publication number
- JPH0886517A JPH0886517A JP24853394A JP24853394A JPH0886517A JP H0886517 A JPH0886517 A JP H0886517A JP 24853394 A JP24853394 A JP 24853394A JP 24853394 A JP24853394 A JP 24853394A JP H0886517 A JPH0886517 A JP H0886517A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heat pump
- storage tank
- water
- heat storage
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/26—Problems to be solved characterised by the startup of the refrigeration cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明はヒートポンプと温度成層
型の冷水/温水蓄熱槽を具備し、該冷水/温水蓄熱槽を
介して冷水及び温水を熱需要端へ供給するように構成し
た熱供給設備の運転方法に関するものである。なお、本
明細書において、ヒートポンプとは冷温製造の狭義のヒ
ートポンプだけでなく、冷凍機を含めた広義のヒートポ
ンプを意味する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a heat pump and a temperature stratified cold water / hot water heat storage tank, and supplies heat to the heat demand end through the cold water / hot water heat storage tank. It relates to a method of operating equipment. In the present specification, the heat pump means not only a narrow sense heat pump for cold temperature manufacturing but also a broad sense heat pump including a refrigerator.
【0002】[0002]
【従来技術】従来、ヒートポンプと温度成層型の冷水/
温水蓄熱槽を具備し、ヒートポンプでつくられた温水及
び冷水を該冷水/温水蓄熱槽を介して熱需要端へ供給す
るように構成した熱供給設備においては、ヒートポンプ
起動時の立上り運転中でもヒートポンプから冷水/温水
蓄熱槽へ、冷水/温水蓄熱槽からヒートポンプへ送る水
の流量は全負荷運転時に近い所定流量であった。Conventionally, heat pumps and temperature stratified cold water /
In a heat supply facility having a hot water heat storage tank and configured to supply hot water and cold water made by a heat pump to the heat demand end through the cold water / hot water heat storage tank, the heat pump can be operated from the heat pump even during startup operation at the time of starting the heat pump. The flow rate of water sent to the cold water / hot water heat storage tank and from the cold water / hot water heat storage tank to the heat pump was a predetermined flow rate close to that at full load operation.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来のようにヒートポンプ起動時の立上り運転中でも全負
荷運転時に近い所定流量を冷水/温水蓄熱槽に流すと、
ヒートポンプ起動時になる設定温度に達しない規定範囲
外温度の水をそのまま冷水/温水蓄熱槽に戻してしまう
ことになり、冷水/温水蓄熱槽の温度成層を壊してしま
うという問題があった。However, when a predetermined flow rate close to full load operation is supplied to the cold / hot water heat storage tank even during the startup operation at the time of starting the heat pump as in the above-mentioned conventional case,
There was a problem that the water having a temperature outside the specified range that did not reach the set temperature at the time of starting the heat pump was returned to the cold water / hot water heat storage tank as it was, and the temperature stratification of the cold water / hot water heat storage tank was destroyed.
【0004】本発明は上述の点に鑑みてなされたもの
で、上記問題点を除去しヒートポンプ起動時の立上り運
転中でも冷水/温水の蓄熱槽の温度成層を壊すことな
く、安定した冷熱の供給を可能とすると共に蓄冷熱効率
を向上させ、且つヒートポンプを最高効率点で運転し、
省エネルギーを図ることができる熱供給設備を提供する
ことを目的とする。The present invention has been made in view of the above points, and eliminates the above-mentioned problems and enables stable supply of cold heat without destroying the temperature stratification of a cold water / hot water heat storage tank even during startup operation at the time of starting a heat pump. Enable heat storage efficiency and improve heat storage efficiency, and operate the heat pump at the highest efficiency point,
It is an object to provide a heat supply facility that can save energy.
【0005】[0005]
【課題を解決するための手段】上記課題を解決するため
本発明は、ヒートポンプと温度成層型の冷水/温水の蓄
熱槽を具備し、ヒートポンプでつくられた温水及び冷水
を蓄熱槽を介して熱需要端へ供給するように構成した熱
供給設備において、ヒートポンプ起動時の立上運転中は
ヒートポンプに送る水の流量を全負荷運転時より少なく
して、ヒートポンプの出口温度が設定温度に達したら又
はヒートポンプの起動から所定時間経過したら流量を徐
々に増やす制御手段を設けたことを特徴とする。In order to solve the above problems, the present invention comprises a heat pump and a thermal stratification type cold water / hot water heat storage tank, and heats hot water and cold water produced by the heat pump through the heat storage tank. In the heat supply equipment configured to supply to the demand end, the flow rate of water sent to the heat pump during the startup operation at the time of starting the heat pump is made smaller than that at full load operation, and when the outlet temperature of the heat pump reaches the set temperature or It is characterized in that a control means for gradually increasing the flow rate is provided after a lapse of a predetermined time from the activation of the heat pump.
【0006】また、ヒートポンプと温度成層型の冷水/
温水の蓄熱槽を具備し、ヒートポンプでつくられた温水
及び冷水を前記蓄熱槽を介して熱需要端へ供給するよう
に構成した熱供給設備において、ヒートポンプ出口から
蓄熱槽に戻る戻り配管に蓄熱槽からヒートポンプへと送
水する送り配管又は該送り配管の吸込口と同じ高さの蓄
熱槽に至る分岐管を設け、ヒートポンプの起動時の立上
運転中は流量を全負荷運転時より少なくし、ヒートポン
プの出口温度が設定温度に達するまで又はヒートポンプ
の起動から所定時間経過するまでの規定範囲外温度の水
を分岐管を介して送り配管又は該送り配管の吸込口と同
じ高さの蓄熱槽に戻すようにし、ヒートポンプの出口温
度が設定温度に達したら又はヒートポンプの起動から所
定時間経過したら該戻り配管を通して該蓄熱槽に戻すよ
うにし、その後流量を徐々に増やす制御手段を設けたこ
とを特徴とする。In addition, heat pump and temperature stratified cold water /
In a heat supply facility having a hot water heat storage tank and configured to supply hot water and cold water made by a heat pump to the heat demand end through the heat storage tank, the heat storage tank is provided in a return pipe returning from the heat pump outlet to the heat storage tank. From the heat pump to the heat pump, or a branch pipe leading to a heat storage tank at the same height as the suction port of the feed pipe is provided. Water of temperature outside the specified range until the outlet temperature reaches the set temperature or until a predetermined time elapses from the start of the heat pump is returned via the branch pipe to the feed pipe or the heat storage tank at the same height as the suction port of the feed pipe. When the outlet temperature of the heat pump reaches the set temperature or when a predetermined time has elapsed from the start of the heat pump, it is returned to the heat storage tank through the return pipe, and then the flow Characterized in that a gradually increasing control means.
【0007】また、送り配管の吸込口と前記分岐管の吐
出口が蓄熱槽の同じ高さに位置しており、且つ該吸込口
と吐出口が同じセキの中に位置するようにしたことを特
徴とする。Further, the suction port of the feed pipe and the discharge port of the branch pipe are located at the same height in the heat storage tank, and the suction port and the discharge port are located in the same cough. Characterize.
【0008】[0008]
【作用】本発明は上記構成を採用することにより、制御
手段はヒートポンプ起動時の立上運転中はヒートポンプ
に送る水の流量を全負荷運転時より少なくし、ヒートポ
ンプの出口温度が設定温度に達したら又はヒートポンプ
の起動から所定時間経過し出口温度が所定の温度になっ
たら流量を徐々に増やすから、規定範囲外温度の水によ
る蓄熱槽の温度成層への影響を最小限にでき、ヒートポ
ンプ起動時の立上り運転中でも蓄熱槽の温度成層を壊す
ことがない。According to the present invention, by adopting the above configuration, the control means reduces the flow rate of water sent to the heat pump during the startup operation at the time of starting the heat pump as compared with the full load operation, and the outlet temperature of the heat pump reaches the set temperature. After the start of the heat pump or when the outlet temperature reaches the predetermined temperature after the start of the heat pump, the flow rate is gradually increased, so that the influence of the water outside the specified range on the temperature stratification of the heat storage tank can be minimized. The thermal stratification of the heat storage tank is not destroyed even during the startup operation of.
【0009】また、ヒートポンプ出口から蓄熱槽に戻る
戻り配管に蓄熱槽からヒートポンプへと送水する送り配
管又は該送り配管の吸込口と同じ高さの蓄熱槽に到る分
岐管を設け、制御手段はヒートポンプの起動時の立上運
転中は流量を全負荷運転時より少なくし、ヒートポンプ
の出口温度が設定温度に達するまで又はヒートポンプの
起動から所定時間経過するまでの規定範囲外温度の水
を、分岐管を介して送り配管又は該送り配管の吸込口と
同じ高さの蓄熱槽に戻し、ヒートポンプの出口温度が設
定温度に達したら又はヒートポンプの起動から所定時間
経過し、出口温度が所定温度になったら、戻り配管を通
して蓄熱槽に戻すから、上記と同様ヒートポンプ起動時
の立上り運転中でも蓄熱槽の温度成層を壊すことがな
い。Further, a feed pipe for feeding water from the heat storage tank to the heat pump or a branch pipe reaching the heat storage tank at the same height as the suction port of the feed pipe is provided in the return pipe returning from the heat pump outlet to the heat storage tank, and the control means is During start-up operation at the time of starting the heat pump, reduce the flow rate from that at full load operation, and branch water with a temperature outside the specified range until the outlet temperature of the heat pump reaches the set temperature or until a predetermined time elapses from the start of the heat pump. Return to the feed pipe or the heat storage tank at the same height as the suction port of the feed pipe through the pipe, and when the outlet temperature of the heat pump reaches the set temperature or a predetermined time has elapsed from the start of the heat pump, the outlet temperature becomes the predetermined temperature. Then, since it is returned to the heat storage tank through the return pipe, the temperature stratification of the heat storage tank is not destroyed even during the startup operation at the time of starting the heat pump, as in the above case.
【0010】[0010]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図1は本発明の熱供給設備の構成を示す図であ
る。本発明の熱供給設備は図1に示すように、ヒートポ
ンプ1と蓄熱槽12を具備し、該ヒートポンプ1を冷熱
ヒートポンプとして運転し、該ヒートポンプ1でつくら
れた冷水を蓄熱槽12を介して熱需要端へ供給するよう
に構成されている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration of heat supply equipment of the present invention. As shown in FIG. 1, the heat supply equipment of the present invention includes a heat pump 1 and a heat storage tank 12, operates the heat pump 1 as a cold heat pump, and heats the cold water produced by the heat pump 1 through the heat storage tank 12. It is configured to supply to the demand end.
【0011】ヒートポンプ1は圧縮機1−1、熱交換器
1−2,1−3、バルブ1−4〜1−11等を具備す
る。蓄熱槽12は温度成層型の蓄熱槽で水温14℃の水
層と水温4℃の冷水層とが形成されている。蓄熱槽12
とヒートポンプ1は送り配管7及びポンプ6を介して接
続されると共に、戻り配管8とバルブ11を介して接続
されている。また、戻り配管8と蓄熱槽12の送り配管
7の吸込口接続部は分岐管9とバルブ10を介して接続
されている。熱源水2とヒートポンプ1はポンプ3と配
管4を介して接続すると共に、配管5を介して接続され
ている。なお、図中15はヒートポンプ1の流出口の水
温を検知する温度センサである。The heat pump 1 comprises a compressor 1-1, heat exchangers 1-2 and 1-3, valves 1-4 to 1-11 and the like. The heat storage tank 12 is a temperature stratification type heat storage tank, and includes a water layer having a water temperature of 14 ° C. and a cold water layer having a water temperature of 4 ° C. Heat storage tank 12
The heat pump 1 is connected via the feed pipe 7 and the pump 6, and is also connected via the return pipe 8 and the valve 11. The return pipe 8 and the suction port connection portion of the feed pipe 7 of the heat storage tank 12 are connected to each other via a branch pipe 9 and a valve 10. The heat source water 2 and the heat pump 1 are connected to the pump 3 via the pipe 4 and the pipe 5. Reference numeral 15 in the figure denotes a temperature sensor that detects the water temperature at the outlet of the heat pump 1.
【0012】上記構成の熱供給設備において、ヒートポ
ンプ1を冷熱ヒートポンプとして運転するときは、バル
ブ1−4〜1−7は閉じ、バルブ1−8〜1−11は開
く。蓄熱槽12の水温14℃の水をポンプ6により送り
配管7を通し、ヒートポンプ1の流入口に送り、熱交換
器1−3でその熱が吸収され、水温4℃の冷水となっ
て、ヒートポンプ1の流出口から戻り配管8及びバルブ
11を通して蓄熱槽12の水温4℃の層に送る。In the heat supply equipment having the above-mentioned structure, when the heat pump 1 is operated as a cold heat pump, the valves 1-4 to 1-7 are closed and the valves 1-8 to 1-11 are opened. The water having a water temperature of 14 ° C. in the heat storage tank 12 is sent by the pump 6 through the sending pipe 7 to the inlet of the heat pump 1, and the heat is absorbed by the heat exchanger 1-3 to become cold water having a water temperature of 4 ° C. The water is sent from the outlet 1 through the return pipe 8 and the valve 11 to the layer of the heat storage tank 12 having a water temperature of 4 ° C.
【0013】また、ポンプ3で配管4を通してヒートポ
ンプ1に送られた熱源水2は熱交換器1−2で昇温さ
れ、配管5を通して熱源水2に戻される。蓄熱槽12の
水温4℃の冷水はポンプ14により配管13を通して熱
需要端へ供給される。The heat source water 2 sent from the pump 3 to the heat pump 1 through the pipe 4 is heated by the heat exchanger 1-2 and returned to the heat source water 2 through the pipe 5. Cold water having a water temperature of 4 ° C. in the heat storage tank 12 is supplied to the heat demand end through the pipe 13 by the pump 14.
【0014】ヒートポンプ1が全負荷で運転できるよう
になるまでには図4に示すように約15分の立上り起動
特性があるので、この間のヒートポンプ1に送る温水1
4℃の水の流量は14℃→4℃へ冷却する時の全負荷相
当の流量に比べてできるだけ少なくし、蓄熱槽12の温
度成層を壊す量を小さくする。As shown in FIG. 4, the heat pump 1 has a start-up start-up characteristic of about 15 minutes before it can be operated at full load.
The flow rate of water at 4 ° C. is made as small as possible compared to the flow rate corresponding to the full load when cooling from 14 ° C. to 4 ° C., and the amount of breaking the temperature stratification of the heat storage tank 12 is made small.
【0015】ヒートポンプ1の起動時にでる水温4℃に
達しない規定範囲外の水温の水を戻り配管8を介してそ
のまま蓄熱槽12の下部の水温4℃の層中に戻すと、そ
この温度成層が壊れてしまい熱需要端へ送る配管13の
水温は規定範囲外の温度となってしまう。しかも蓄熱効
率を下げることにもつながってくる。When water having a water temperature outside the specified range which does not reach the water temperature of 4 ° C. when the heat pump 1 is started is returned to the lower layer of the heat storage tank 12 at the water temperature of 4 ° C. through the return pipe 8, the temperature stratification there. Is broken and the water temperature of the pipe 13 sent to the heat demand end is outside the specified range. Moreover, it also leads to a reduction in heat storage efficiency.
【0016】そこで、ヒートポンプ1の起動時の規定範
囲外温度の水を分岐管9及びバルブ10を通して蓄熱槽
12の水温14℃の層に戻す。この場合、水温14℃の
温度成層を壊すことになるが、熱需要端に供給する水温
4℃の温度成層への影響は少なく安定した熱供給が可能
となる。更に、分岐管9の蓄熱槽12への戻り口を送り
配管7の吸込口接続部と同じセキの中にすれば、蓄熱槽
12の温度成層の乱れを最小限に抑えることができる。Therefore, when the heat pump 1 is started up, the water having a temperature outside the specified range is returned to the layer having the water temperature of 14 ° C. in the heat storage tank 12 through the branch pipe 9 and the valve 10. In this case, the temperature stratification at the water temperature of 14 ° C. is destroyed, but there is little influence on the temperature stratification at the water temperature of 4 ° C. supplied to the heat demand end, and stable heat supply becomes possible. Furthermore, if the return port of the branch pipe 9 to the heat storage tank 12 is in the same position as the suction port connection portion of the feed pipe 7, the disturbance of the temperature stratification of the heat storage tank 12 can be minimized.
【0017】ヒートポンプ1の流出口1−12の水温が
設定温度(4℃に近い温度)に達したら、バルブ11を
開け、バルブ10を閉じ、ヒートポンプ1からの冷水を
戻り配管8を通して、蓄熱槽12の水温4℃の層に戻
す。この時点ではヒートポンプ1への供給水の流量はか
なり絞られており、部分負荷運転の状態になっているか
ら、該供給水の流量を徐々に増やしていき全負荷運転へ
と移行する。When the water temperature at the outlet 1-12 of the heat pump 1 reaches a set temperature (a temperature close to 4 ° C.), the valve 11 is opened and the valve 10 is closed, and cold water from the heat pump 1 is passed through the return pipe 8 to the heat storage tank. Return to layer of water temperature 12 at 4 ° C. At this point in time, the flow rate of the water supplied to the heat pump 1 has been considerably reduced, and the state is in the partial load operation. Therefore, the flow rate of the supply water is gradually increased to shift to the full load operation.
【0018】なお、上記実施例ではヒートポンプ1の流
出口1−12の水温が設定温度に達したら、ヒートポン
プ1からの冷水を戻り配管8を通して、蓄熱槽12の水
温14℃の層に戻すように構成したが、ヒートポンプ1
から所定時間(例えば図4に示すように約15分の立上
り時間)経過したら、ヒートポンプ1からの冷水を戻り
配管8を通して、蓄熱槽12の水温4℃の層に戻すよう
に構成してもよい。In the above embodiment, when the water temperature at the outlet 1-12 of the heat pump 1 reaches the set temperature, the cold water from the heat pump 1 is returned to the layer of the heat storage tank 12 having the water temperature of 14 ° C. through the return pipe 8. Configured, heat pump 1
After a lapse of a predetermined time (for example, a rising time of about 15 minutes as shown in FIG. 4), the cold water from the heat pump 1 may be returned to the layer of the heat storage tank 12 having the water temperature of 4 ° C. through the return pipe 8. .
【0019】上記構成の熱供給設備の制御は図示しない
コンピュータを具備する制御手段で行う。図2はこの制
御手段の制御フローを示す図である。先ずバルブ10を
開き、バルブ11を閉じる(ステップST1)。続いて
ポンプ6を運転し(ステップST2)、通水を開始す
る。通水開始時の流量qはできるだけ少なくする。ポン
プ3を運転し熱源水2の通水を開始する(ステップST
3)。The control of the heat supply equipment having the above construction is performed by a control means equipped with a computer (not shown). FIG. 2 is a diagram showing a control flow of this control means. First, the valve 10 is opened and the valve 11 is closed (step ST1). Subsequently, the pump 6 is operated (step ST2) to start water flow. The flow rate q at the start of water flow should be minimized. The pump 3 is operated to start passing the heat source water 2 (step ST
3).
【0020】続いてヒートポンプ1の運転を開始する
(ステップST4)。温度センサ15の出力から、流出
口の水温が規定温度(4℃に近い温度)に達するまで待
機し(ステップST5)、規定温度に達したらバルブ1
0を閉じ、バルブ11を開いて通常の運転モードにする
(ステップST6)。続いて流量qを徐々に増やし(ス
テップST7)、流量qが所定流量となったら(ステッ
プST8)、ヒートポンプ1を全負荷運転とし(ステッ
プST9)、ヒートポンプ停止指令があるまで運転を継
続する(ステップST10)。Then, the operation of the heat pump 1 is started (step ST4). From the output of the temperature sensor 15, wait until the water temperature at the outlet reaches a specified temperature (a temperature close to 4 ° C.) (step ST5), and when it reaches the specified temperature, the valve 1
0 is closed and the valve 11 is opened to enter the normal operation mode (step ST6). Subsequently, the flow rate q is gradually increased (step ST7), and when the flow rate q reaches the predetermined flow rate (step ST8), the heat pump 1 is set to full load operation (step ST9), and the operation is continued until a heat pump stop command is issued (step ST9). ST10).
【0021】ヒートポンプ停止指令が出るとヒートポン
プ1を停止し(ステップST11)、ヒートポンプ1の
流出口の水温が規定温度か否かを判断し(ステップST
12)、規定温度でないならばバルブ10を開き、バル
ブ11を閉じ(ステップST13)、続いてポンプ6を
停止し(ステップST14)、ポンプ3を停止する(ス
テップST15)。When a heat pump stop command is issued, the heat pump 1 is stopped (step ST11), and it is judged whether or not the water temperature at the outlet of the heat pump 1 is the specified temperature (step ST).
12) If the temperature is not the specified temperature, the valve 10 is opened, the valve 11 is closed (step ST13), the pump 6 is stopped (step ST14), and the pump 3 is stopped (step ST15).
【0022】図3はヒートポンプ1を温熱ヒートポンプ
として運転し、該ヒートポンプ1で作られる温水を蓄熱
槽12を介して熱需要端へ供給する場合の熱供給設備の
構成を示す図である。FIG. 3 is a diagram showing the construction of heat supply equipment when the heat pump 1 is operated as a hot heat pump and hot water produced by the heat pump 1 is supplied to the heat demand end through the heat storage tank 12.
【0023】ヒートポンプ1のバルブ1−4〜1−7は
開き、バルブ1−8〜1−11は閉じる。蓄熱槽12の
水温28℃の水をポンプ6により送り配管7を通し、ヒ
ートポンプ1の流入口に送り、熱交換器1−3で昇温さ
せ、水温60℃の温水として、ヒートポンプ1の流出口
から戻り配管8及びバルブ11を通して蓄熱槽12の水
温60℃の層に送る。The valves 1-4 to 1-7 of the heat pump 1 are opened and the valves 1-8 to 1-11 are closed. The water having a water temperature of 28 ° C. in the heat storage tank 12 is sent by the pump 6 through the feed pipe 7 to the inflow port of the heat pump 1 and heated by the heat exchanger 1-3, and as the hot water having a water temperature of 60 ° C, the outflow port of the heat pump 1. The water is sent to the layer of the heat storage tank 12 having a water temperature of 60 ° C. from the return pipe 8 and the valve 11.
【0024】また、ポンプ3で配管4を通してヒートポ
ンプ1に送られた熱源水2の熱は熱交換器1−2で吸熱
され、配管5を通して熱源水2に戻される。蓄熱槽12
の水温60℃の温水はポンプ14により配管13を通し
て需要端へ供給される。The heat of the heat source water 2 sent to the heat pump 1 through the pipe 4 by the pump 3 is absorbed by the heat exchanger 1-2 and returned to the heat source water 2 through the pipe 5. Heat storage tank 12
The hot water having a water temperature of 60 ° C. is supplied to the demand end by the pump 14 through the pipe 13.
【0025】ヒートポンプ1が全負荷で運転できるよう
になるまでには約15分の立上り起動特性があるので、
この間のヒートポンプ1に送る温水28℃の水の流量は
28℃→60℃へ昇温させる時の全負荷相当の流量に比
べてできるだけ少なくし、蓄熱槽12の温度成層を壊す
量を小さくする。Since the heat pump 1 has a startup characteristic of about 15 minutes before it can be operated at full load,
During this time, the flow rate of the warm water of 28 ° C. sent to the heat pump 1 is made as small as possible compared to the flow rate corresponding to the full load when the temperature is raised from 28 ° C. to 60 ° C., and the amount of breaking the temperature stratification of the heat storage tank 12 is reduced.
【0026】ヒートポンプ1の起動時にでる水温60℃
に達しない規定範囲外の温度の水を戻り配管8を介して
そのまま蓄熱槽12の上部の水温60℃の層中に戻す
と、そこの温度成層が壊れてしまい熱需要端へ送る配管
13の水温は規定範囲外の温度となってしまう。しかも
蓄熱効率を下げることにもつながってくる。Water temperature at the time of starting the heat pump 1 60 ° C.
If water having a temperature outside the specified range that does not reach the temperature is returned to the upper layer of the heat storage tank 12 at a water temperature of 60 ° C through the return pipe 8 as it is, the temperature stratification there is broken, and the pipe 13 for sending to the heat demand end is The water temperature will be outside the specified range. Moreover, it also leads to a reduction in heat storage efficiency.
【0027】そこで、ヒートポンプ1の起動時の規定範
囲外温度の水を分岐管9及びバルブ10を通して蓄熱槽
12の水温28℃の層に戻す。この場合、水温28℃の
温度成層を壊すことになるが、需要端に供給する水温6
0℃の温度成層への影響は少なく安定した熱供給が可能
となる。更に、分岐管9の蓄熱槽12への戻り口を送り
配管7の吸込口接続部と同じセキの中にすれば、蓄熱槽
12の温度成層の乱れを最小限に抑えることができる。Therefore, when the heat pump 1 is started up, water having a temperature outside the specified range is returned to the layer of the heat storage tank 12 having a water temperature of 28 ° C. through the branch pipe 9 and the valve 10. In this case, the temperature stratification at a water temperature of 28 ° C is destroyed, but the water temperature supplied to the demand end is 6
A stable heat supply is possible with little influence on the temperature stratification at 0 ° C. Furthermore, if the return port of the branch pipe 9 to the heat storage tank 12 is in the same position as the suction port connection portion of the feed pipe 7, the disturbance of the temperature stratification of the heat storage tank 12 can be minimized.
【0028】ヒートポンプ1の流出口1−12の水温が
設定温度(60℃に近い温度)に達したら、バルブ11
を開け、バルブ10を閉じ、ヒートポンプ1からの温水
を戻り配管8を通して、蓄熱槽12の水温60℃の層に
戻す。この時点ではヒートポンプ1への供給水の流量は
かなり絞られており、部分負荷運転の状態になっている
から、該供給水の流量を徐々に増やしていき全負荷運転
へと移行する。When the water temperature at the outlet 1-12 of the heat pump 1 reaches the set temperature (a temperature close to 60 ° C.), the valve 11
Is opened, the valve 10 is closed, and hot water from the heat pump 1 is returned to the heat storage tank 12 at a water temperature of 60 ° C. through the return pipe 8. At this point in time, the flow rate of the water supplied to the heat pump 1 has been considerably reduced, and the state is in the partial load operation. Therefore, the flow rate of the supply water is gradually increased to shift to the full load operation.
【0029】なお、上記実施例ではヒートポンプ1の流
出口1−12の水温が設定温度に達したら、ヒートポン
プ1からの冷水を戻り配管8を通して、蓄熱槽12の水
温60℃の層に戻すように構成したが、ヒートポンプ1
から所定時間経過したら、ヒートポンプ1からの冷水を
戻り配管8を通して、蓄熱槽12の水温60℃の層に戻
すように構成してもよい。In the above embodiment, when the water temperature at the outlet 1-12 of the heat pump 1 reaches the set temperature, the cold water from the heat pump 1 is returned to the layer of the heat storage tank 12 at the water temperature of 60 ° C. through the return pipe 8. Configured, heat pump 1
After a lapse of a predetermined time from, the cold water from the heat pump 1 may be returned to the layer of the heat storage tank 12 having the water temperature of 60 ° C. through the return pipe 8.
【0030】上記制御は図示しないコンピュータを具備
する制御手段で行うことは、ヒートポンプ1を冷熱ヒー
トポンプとして運転する場合と同じであり、その制御フ
ローの説明は省略する。The above-mentioned control is performed by the control means equipped with a computer (not shown), which is the same as the case where the heat pump 1 is operated as a cold heat pump, and the explanation of the control flow is omitted.
【0031】なお、上記実施例ではヒートポンプ1を具
備する熱供給設備を例に説明したが、ヒートポンプ1が
複数台の場合も当然可能である。In the above embodiment, the heat supply equipment provided with the heat pump 1 has been described as an example, but it is naturally possible to use a plurality of heat pumps 1.
【0032】[0032]
【発明の効果】以上説明したように、本発明によれば下
記のような優れた効果が得られる。 (1)ヒートポンプ起動時の流量をできるだけ少なく
し、ヒートポンプの出口温度が設定温度に達したら又は
ヒートポンプの起動から所定時間経過したら流量を徐々
に増やすので、ヒートポンプ起動時に該ヒートポンプか
ら流出する設定温度に達していない規定範囲外温度によ
る蓄熱槽の温度成層への影響を最小限にし、熱需要端へ
の安定した熱供給が可能となる。As described above, according to the present invention, the following excellent effects can be obtained. (1) The flow rate at the time of starting the heat pump is reduced as much as possible, and the flow rate is gradually increased when the outlet temperature of the heat pump reaches the set temperature or when a predetermined time has elapsed after the start of the heat pump. The effect on the temperature stratification of the heat storage tank due to the temperature outside the specified range that has not reached is minimized, and stable heat supply to the heat demand end becomes possible.
【0033】(2)更にヒートポンプ出口から蓄熱槽に
戻る戻り配管に蓄熱槽からヒートポンプへ送水する送り
配管又は該送り配管の吸込口と同じ高さの前記蓄熱槽に
至る分岐管を設け、ヒートポンプの出口温度が設定温度
に達するまで又は該ヒートポンプの起動から所定時間経
過するまでの規定範囲外温度の水を分岐管を介して送り
配管又は該送り配管の吸込口と同じ高さの蓄熱槽に戻す
ので、更に蓄熱槽の温度成層への影響を最小限にし、熱
需要端への安定した熱供給が可能となる。(2) Further, a return pipe returning from the heat pump outlet to the heat storage tank is provided with a feed pipe for feeding water from the heat storage tank to the heat pump or a branch pipe leading to the heat storage tank at the same height as the suction port of the feed pipe. Water with a temperature outside the specified range until the outlet temperature reaches the set temperature or until a predetermined time elapses from the start of the heat pump is returned to the feed pipe through the branch pipe or the heat storage tank at the same height as the suction port of the feed pipe. Therefore, the influence on the temperature stratification of the heat storage tank can be further minimized, and stable heat supply to the heat demand end can be achieved.
【図1】本発明のヒートポンプを冷熱ヒートポンプとし
て運転する熱供給設備の構成を示す図である。FIG. 1 is a diagram showing a configuration of heat supply equipment for operating the heat pump of the present invention as a cold heat pump.
【図2】本発明の熱供給設備の制御フローを示す図であ
る。FIG. 2 is a diagram showing a control flow of the heat supply equipment of the present invention.
【図3】本発明のヒートポンプを温熱ヒートポンプとし
て運転する熱供給設備の構成を示す図である。FIG. 3 is a diagram showing a configuration of heat supply equipment for operating the heat pump of the present invention as a heat pump.
【図4】ヒートポンプの立上り特性を示す図である。FIG. 4 is a diagram showing a rising characteristic of a heat pump.
1 ヒートポンプ 2 熱源水 3 ポンプ 4 配管 5 配管 6 ポンプ 7 送り配管 8 戻り配管 9 分岐管 10 バルブ 11 バルブ 12 蓄熱槽 13 配管 14 ポンプ 15 温度センサ 1 Heat Pump 2 Heat Source Water 3 Pump 4 Piping 5 Piping 6 Pump 7 Feeding Piping 8 Return Piping 9 Branch Pipe 10 Valve 11 Valve 12 Heat Storage Tank 13 Piping 14 Pump 15 Temperature Sensor
Claims (3)
の蓄熱槽を具備し、該ヒートポンプでつくられた温水及
び冷水を該蓄熱槽を介して熱需要端へ供給するように構
成した熱供給設備において、 前記ヒートポンプ起動時の立上運転中はヒートポンプに
送る水の流量を全負荷運転時より少なくして、ヒートポ
ンプの出口温度が設定温度に達したら又はヒートポンプ
の起動から所定時間経過したら前記流量を徐々に増やす
制御手段を設けたことを特徴とする熱供給設備。1. A heat supply facility comprising a heat pump and a thermal stratification type cold water / hot water heat storage tank, and configured to supply hot water and cold water produced by the heat pump to a heat demand end through the heat storage tank. In the above, during the startup operation at the time of starting the heat pump, the flow rate of water to be sent to the heat pump is made smaller than that at the time of full load operation, and when the outlet temperature of the heat pump reaches a set temperature or when a predetermined time has elapsed from the start of the heat pump, the flow rate is set A heat supply facility characterized by being provided with control means for gradually increasing it.
の蓄熱槽を具備し、ヒートポンプでつくられた温水及び
冷水を前記蓄熱槽を介して熱需要端へ供給するように構
成した熱供給設備において、 前記ヒートポンプ出口から前記蓄熱槽に戻る戻り配管に
蓄熱槽からヒートポンプへ送水する送り配管又は該送り
配管の吸込口と同じ高さの前記蓄熱槽に至る分岐管を設
け、 前記ヒートポンプの起動時の立上運転中は流量を全負荷
運転時より少なくし、該ヒートポンプの出口温度が設定
温度に達するまで又は該ヒートポンプの起動から所定時
間経過するまでの規定範囲外温度の水を前記分岐管を介
して送り配管又は該送り配管の吸込口と同じ高さの前記
蓄熱槽に戻すようにし、該ヒートポンプの出口温度が設
定温度に達したら又はヒートポンプの起動から所定時間
経過したら該戻り配管を通して該蓄熱槽に戻すように
し、その後流量を徐々に増やす制御手段を設けたことを
特徴とする熱供給設備。2. A heat supply facility comprising a heat pump and a thermal stratification type cold water / hot water heat storage tank, and configured to supply hot water and cold water produced by the heat pump to the heat demand end through the heat storage tank. In the return pipe returning from the heat pump outlet to the heat storage tank, a feed pipe for sending water from the heat storage tank to the heat pump or a branch pipe reaching the heat storage tank at the same height as the suction port of the feed pipe is provided, and when the heat pump is started, During start-up operation, the flow rate is made smaller than that during full-load operation, and water having a temperature outside the specified range until the outlet temperature of the heat pump reaches a set temperature or a predetermined time elapses from the start of the heat pump through the branch pipe. To the feed pipe or the heat storage tank at the same height as the suction port of the feed pipe, and when the outlet temperature of the heat pump reaches a set temperature or the heat pump is turned on. Predetermined time so as to return to the heat storage tank through said return Ri pipe after the lapse, heat supply facilities, characterized in that a control means of increasing then the flow gradually from.
出口が前記蓄熱槽の同じ高さに位置しており、且つ該吸
込口と吐出口が同じセキの中に位置するようにしたこと
を特徴とする請求項2に記載の熱供給設備。3. The suction port of the feed pipe and the discharge port of the branch pipe are located at the same height of the heat storage tank, and the suction port and the discharge port are located in the same cough. The heat supply equipment according to claim 2, wherein:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24853394A JPH0886517A (en) | 1994-09-14 | 1994-09-14 | Heat supplying facility |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24853394A JPH0886517A (en) | 1994-09-14 | 1994-09-14 | Heat supplying facility |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0886517A true JPH0886517A (en) | 1996-04-02 |
Family
ID=17179606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24853394A Pending JPH0886517A (en) | 1994-09-14 | 1994-09-14 | Heat supplying facility |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0886517A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7182129B2 (en) * | 2000-03-10 | 2007-02-27 | Valeo Climatisation | Device for heating and/or air-conditioning the passenger compartment of a motor vehicle |
JP2009127918A (en) * | 2007-11-21 | 2009-06-11 | Osaka Gas Co Ltd | Heat source water supply system |
KR101370276B1 (en) * | 2012-11-01 | 2014-03-06 | 주식회사 이너지테크놀러지스 | Heat pump system |
CN114110978A (en) * | 2021-11-22 | 2022-03-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Air conditioning system, control method and air conditioning unit |
-
1994
- 1994-09-14 JP JP24853394A patent/JPH0886517A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7182129B2 (en) * | 2000-03-10 | 2007-02-27 | Valeo Climatisation | Device for heating and/or air-conditioning the passenger compartment of a motor vehicle |
JP2009127918A (en) * | 2007-11-21 | 2009-06-11 | Osaka Gas Co Ltd | Heat source water supply system |
KR101370276B1 (en) * | 2012-11-01 | 2014-03-06 | 주식회사 이너지테크놀러지스 | Heat pump system |
CN114110978A (en) * | 2021-11-22 | 2022-03-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Air conditioning system, control method and air conditioning unit |
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