JPS6034950Y2 - Exhaust gas heat recovery device - Google Patents
Exhaust gas heat recovery deviceInfo
- Publication number
- JPS6034950Y2 JPS6034950Y2 JP1980083570U JP8357080U JPS6034950Y2 JP S6034950 Y2 JPS6034950 Y2 JP S6034950Y2 JP 1980083570 U JP1980083570 U JP 1980083570U JP 8357080 U JP8357080 U JP 8357080U JP S6034950 Y2 JPS6034950 Y2 JP S6034950Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- valve
- hot water
- temperature
- heat exchanger
- 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
Links
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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Drying Of Solid Materials (AREA)
Description
【考案の詳細な説明】
本考案は排ガス熱回収装置に係わり、更に詳しくは乾操
装置から排出される排ガスの熱量を利用して高温水を得
る為の装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an exhaust gas heat recovery device, and more particularly to a device for obtaining high-temperature water by utilizing the amount of heat of exhaust gas discharged from a drying device.
従来、乾操装置の排ガスを利用して、温水を得る装置は
、即ち排ガスと熱交換して温水を得る装置は種々開発さ
れているが、はとんどが排ガス中の顕熱のみ、又は潜熱
のみを回収しているにすぎない。Conventionally, various devices have been developed to obtain hot water using the exhaust gas of dry operating equipment, that is, devices to obtain hot water by exchanging heat with the exhaust gas, but most of them utilize only the sensible heat in the exhaust gas or Only latent heat is recovered.
本考案は述上の点に鑑み威されたもので、排ガス流管の
中途に熱交換器を配すると共に端末にコンタクト式熱交
換器を配し、上記コンタクト式熱交換器の温水出口と上
流に配した熱交換器間をポンプが配設された一次管によ
り連結し、熱交換器の出口に連なる二次管に配した開閉
弁を、該二次管内を通る温水が一定温度以上になった時
、開となるように定めると共に、前記−次管のポンプの
下流側から分岐した一次枝管に配した開閉弁を、二次管
の開閉弁の開に伴い一次管内圧が一定圧以下になった時
閉となるように且つ二次管の開閉弁の閉に伴い一次管内
圧が一定圧以上になった時、開となるように定め、更に
上記コンタクト式熱交換器に水を供給する送水管に配し
た開閉弁を一次管内の温水が一定温度以上になった時、
開となるように定めて成る排ガス熱回収装置であって、
その目的とする所は、排ガスの顕熱と潜熱の双方を吸収
して、高温水を得る装置を提供するにある。The present invention was developed in view of the above points, and includes a heat exchanger placed midway through the exhaust gas flow pipe, and a contact type heat exchanger placed at the end of the exhaust gas flow pipe. A primary pipe equipped with a pump connects the heat exchangers arranged in the heat exchanger, and an on-off valve arranged in the secondary pipe connected to the outlet of the heat exchanger is connected when the hot water passing through the secondary pipe reaches a certain temperature or higher. At the same time, the on-off valve arranged in the primary branch pipe branched from the downstream side of the pump of the secondary pipe is set to open when the on-off valve of the secondary pipe opens, and the internal pressure of the primary pipe becomes below a certain pressure. It is set so that it closes when the secondary pipe on-off valve closes and opens when the primary pipe internal pressure becomes a certain pressure or higher, and further supplies water to the contact type heat exchanger. When the hot water in the primary pipe reaches a certain temperature, the on-off valve installed in the water pipe
An exhaust gas heat recovery device configured to be open,
The purpose is to provide a device for obtaining high temperature water by absorbing both sensible heat and latent heat of exhaust gas.
次に本考案の実施例を詳述する。Next, embodiments of the present invention will be described in detail.
１は図示せざる乾操装置に連なる排ガス流管であり、該
排ガス流管１の端末にコンタクト式熱交換器２が配され
ている。Reference numeral 1 denotes an exhaust gas flow pipe connected to a drying device (not shown), and a contact type heat exchanger 2 is disposed at the end of the exhaust gas flow pipe 1.
コンタクト式熱交換器２の温水出口３には、温水溜り４
とポンプ５を有する一次管６が接続され、該−次管６は
排ガス流管１の上流に配された管式熱交換器７に接続し
ている。A hot water reservoir 4 is provided at the hot water outlet 3 of the contact type heat exchanger 2.
A primary pipe 6 with a pump 5 is connected thereto, which is connected to a tubular heat exchanger 7 arranged upstream of the exhaust gas flow pipe 1 .
管式熱交換器７から導いた二次管８には、温水溜り９と
開閉弁１０が配され、上記開閉弁１０は、温水溜り９内
の温水が壱定温度以上になった時開となるように定めで
ある。A hot water reservoir 9 and an on-off valve 10 are arranged in the secondary pipe 8 led from the tubular heat exchanger 7, and the on-off valve 10 opens when the hot water in the hot water reservoir 9 reaches a certain temperature or higher. It is destined to be.
即ち温水溜り９内に配した温度検出器１１によって温水
の温度を検出し、その温度が設定温度以上の時は、温度
制御系１２の制御によって開閉弁１０を開とし、設定温
度以下の時は、開閉弁１０を閉とするものである。That is, the temperature of the hot water is detected by a temperature detector 11 placed in the hot water reservoir 9, and when the temperature is above the set temperature, the on-off valve 10 is opened under the control of the temperature control system 12, and when it is below the set temperature, the on-off valve 10 is opened. , the on-off valve 10 is closed.
次いで前記−次管６のポンプ５の下流側から一次枝管１
３を分岐して、開閉弁１４を配し、該開閉弁１４を、二
次管８の開閉弁１０の開に伴い一次管６内圧が一定圧以
下になった時閉となるように且つ二次管８の開閉弁１０
の閉に伴い一次管６内圧が一定圧以上になった時、開と
なるように定める。Next, the primary branch pipe 1 is connected from the downstream side of the pump 5 of the secondary pipe 6.
3 is branched, and an on-off valve 14 is disposed so that the on-off valve 14 is closed when the internal pressure of the primary pipe 6 becomes below a certain pressure due to the opening of the on-off valve 10 of the secondary pipe 8. Next pipe 8 on-off valve 10
When the internal pressure of the primary pipe 6 becomes equal to or higher than a certain pressure due to the closing of the primary pipe 6, the primary pipe 6 is opened.
即ち一次枝管１３に配した圧力検出器１５によって温水
の圧力を検出し、その圧力が設定圧以上の時は、圧力制
御系１６の制御によって開閉弁１４を開とし、設定圧力
以下の時は、開閉弁１４を閉とするものである。That is, the pressure of the hot water is detected by the pressure detector 15 arranged in the primary branch pipe 13, and when the pressure is above the set pressure, the on-off valve 14 is opened under the control of the pressure control system 16, and when it is below the set pressure, the on-off valve 14 is opened. , the on-off valve 14 is closed.
そして、前述コンタクト式熱交換器２に臨ませた送水管
１７に開閉弁１８を配し、該開閉弁１８を一次管６に流
出する温水が一定温度以上になった時、開となるように
定める。An on-off valve 18 is disposed on the water pipe 17 facing the contact type heat exchanger 2, and the on-off valve 18 is opened when the hot water flowing into the primary pipe 6 reaches a certain temperature or higher. stipulate.
即ち、−次管温水溜り４内に配した温度検出器１９によ
って温水の温度を検出し、その温度が設定温度以上の時
は、温度制御系２０の制御によって開閉弁１８を開とし
、設定温度以下の時は、該開閉弁１８を閉とするもので
ある。That is, the temperature of the hot water is detected by a temperature detector 19 disposed in the secondary pipe hot water reservoir 4, and when the temperature is higher than the set temperature, the on-off valve 18 is opened under the control of the temperature control system 20, and the set temperature is increased. In the following cases, the on-off valve 18 is closed.
述上の構成に基き、乾操装置により排出されたホットガ
スＧがガス流管１を通りコンタクト式熱交換器２に至る
と、送水管１７を介して給水せしめられる水と接触熱交
換し、蒸気成分が液化せしめられ、その液化に際して蒸
気から奪われた熱が水に与えられ、温水となって一次管
６へ流出する。Based on the above configuration, when the hot gas G discharged from the drying device passes through the gas flow pipe 1 and reaches the contact heat exchanger 2, it exchanges contact heat with water supplied through the water pipe 17, The steam component is liquefied, and the heat removed from the steam during the liquefaction is given to water, which becomes hot water and flows out into the primary pipe 6.
他方熱交換後のガスＧはガス出口２１より流出する。On the other hand, the gas G after heat exchange flows out from the gas outlet 21.
上記−次管６へ流入した温水は、更に管式熱交換器７を
通り、ホットガスＧと熱交換することにより、より高温
水となって二次管８へ流出し、次々と高温水が得られる
。The hot water that has flowed into the secondary pipe 6 further passes through the tubular heat exchanger 7, exchanges heat with the hot gas G, becomes higher temperature water, and flows out into the secondary pipe 8, where the high temperature water is can get.
従来の場合、ホットガスと水を接触熱交換して温水を得
るだけか、又はホットガスと管状の熱交換器を通る水を
熱交換して温水を得るだけかの何れかであり、排ガスの
潜熱と顕熱の双方を吸熱していなかったので効率的に高
温水を得ることができなかったが、本考案の場合上記の
ようにコンタクト式熱交換器２の所でホットガスと水を
接触熱交換する段階で潜熱を吸熱して温水を得た後、管
式熱交換器７の所で前段階の温水をホットガスと熱交換
する段階で顕熱を吸熱して更に高温水とするので、排ガ
スの潜熱と顕熱の双方を吸熱して効率的に高温水を得る
ことができる。In the conventional case, hot water is simply obtained by contact heat exchange between hot gas and water, or hot water is obtained by heat exchange between hot gas and water passing through a tubular heat exchanger. Since it did not absorb both latent heat and sensible heat, it was not possible to efficiently obtain high-temperature water, but in the case of the present invention, hot gas and water are brought into contact at the contact heat exchanger 2 as described above. After the hot water is obtained by absorbing latent heat in the heat exchange stage, sensible heat is absorbed in the stage of exchanging the hot water from the previous stage with hot gas in the tubular heat exchanger 7 to make the water even hotter. , it is possible to efficiently obtain high-temperature water by absorbing both the latent heat and sensible heat of the exhaust gas.
而して、本考案の高温水を得る動作を更に詳述すると、
コンタクト式熱交換器２の所でホットガスＧと水を接触
熱交換して、潜熱の吸熱により生じた温水は、−次管６
に流入し、ポンプ５により管式熱交換器７に至り、そこ
で更に昇温されて高温水となって二次管８へ流入する。The operation of obtaining high-temperature water according to the present invention will be explained in more detail.
Contact heat exchange is carried out between the hot gas G and water in the contact type heat exchanger 2, and the hot water generated by the absorption of latent heat is transferred to the -next pipe 6.
The water flows into the tube heat exchanger 7 by the pump 5, where it is further heated to become high-temperature water and flows into the secondary pipe 8.
二次管８の温水溜り９へ流入した高温水が開閉弁１０の
設定開温度・・・・・・・・・例えば１００℃に達つし
ていれば温度検出器１１の検出と温度制御系１２の働き
によって開閉弁１０が開となり、１００℃の高温水が得
られる。If the high temperature water flowing into the hot water reservoir 9 of the secondary pipe 8 reaches the set opening temperature of the on-off valve 10, for example 100°C, the temperature detector 11 detects the temperature and the temperature control system The on-off valve 10 is opened by the action of 12, and high-temperature water of 100°C is obtained.
この時、−次管６の内圧は通常に保たれているので、一
次枝管１３の開閉弁１４は閉状態である。At this time, the internal pressure of the secondary pipe 6 is maintained at a normal level, so the on-off valve 14 of the primary branch pipe 13 is in a closed state.
逆に二次管８の温水溜り９内へ流入した高温水が開閉弁
１０の設定量温度以下の場合には、温度検出器１１の検
出と温度制御系１２の働きによって開閉弁１０が閉じる
。Conversely, when the high temperature water flowing into the hot water reservoir 9 of the secondary pipe 8 is lower than the set temperature of the on-off valve 10, the on-off valve 10 is closed by the detection by the temperature detector 11 and the action of the temperature control system 12.
この時−次管６への温水流入量が増した場合、−次管６
の内圧が上昇し、その内圧上昇を圧力検出器１５が検出
するから圧力制御系１６の働きを介して開閉弁１４が開
き、潜熱の吸熱によって昇温した温水が一次枝管１３よ
り得られるものである。At this time, if the amount of hot water flowing into the -next pipe 6 increases, the -next pipe 6
When the pressure detector 15 detects the increase in internal pressure, the on-off valve 14 opens through the action of the pressure control system 16, and hot water whose temperature has been raised by the absorption of latent heat is obtained from the primary branch pipe 13. It is.
そして、再び二次管８の温水溜り９の温水温度が、開閉
弁１０の設定開温度になれば前述したように二次管８よ
り高温水・・・・・・・・・例えば１００℃の高温水が
得られるものであり、この時、一次枝管１３の開閉弁１
４が閉になるものであって、予め定めた一定温度以上の
温水を二次管８から優先的に取り出すようになっている
ものである。Then, when the hot water temperature in the hot water reservoir 9 of the secondary pipe 8 reaches the set opening temperature of the on-off valve 10 again, as mentioned above, the water is at a higher temperature than the secondary pipe 8...for example, 100°C. High temperature water is obtained, and at this time, the on-off valve 1 of the primary branch pipe 13
4 is closed, and hot water above a predetermined temperature is preferentially taken out from the secondary pipe 8.
そしてコンタクト式熱交換器２の温水出口３から流出し
、温水溜り４に流入する温水の温度が予め定めた一定温
度以上の時、開閉弁１８が開となって水を送水し、一定
温度以下の時開閉弁１８が閉となって水送水が停止する
ので、−次管６の温水溜り４内の温水は、常に一定温度
（例えばホットガス中の水蒸気の露点温度と同一に設定
された温度）となり、上記の一次枝管１３からは、一定
温度の温水がとり出せるものである。When the temperature of the hot water flowing out of the hot water outlet 3 of the contact type heat exchanger 2 and flowing into the hot water reservoir 4 is above a predetermined certain temperature, the on-off valve 18 is opened to send water, and the temperature is lower than the certain temperature. At this time, the on-off valve 18 is closed and the water supply is stopped, so the hot water in the hot water reservoir 4 of the secondary pipe 6 is always kept at a constant temperature (for example, a temperature set to be the same as the dew point temperature of water vapor in the hot gas). ), and hot water at a constant temperature can be taken out from the primary branch pipe 13.
以上詳述した如く本考案は、排ガス流管１の中途に熱交
換器７を配すると共に端末にコンタクト式熱交換器２を
配し、上記コンタクト式熱交換器２の温水出口３と上流
に配した熱交換器７間をポンプ５が配された一次管６に
より連結し、上記熱交換器７の出口に二次管８を配した
ので、排ガスの潜熱と顕熱の双方を吸収して高温水を得
ることができるものであり、又二次管８に配した開閉弁
１０を、二次管８内を通る温水が予め定めた一定温度以
上の時、開となるように定めると共に、−次管６から分
岐した管１３に配した開閉弁１４を、−次管６内圧が予
め定めた一定圧以上になった時、開となるように定めで
あるので、二次管８から流出する。As described in detail above, the present invention includes a heat exchanger 7 disposed in the middle of the exhaust gas flow pipe 1, and a contact type heat exchanger 2 disposed at the terminal, and connected upstream to the hot water outlet 3 of the contact type heat exchanger 2. The heat exchangers 7 arranged are connected by a primary pipe 6 equipped with a pump 5, and a secondary pipe 8 is arranged at the outlet of the heat exchanger 7, so that both latent heat and sensible heat of the exhaust gas can be absorbed. It is possible to obtain high temperature water, and the on-off valve 10 disposed in the secondary pipe 8 is set to open when the hot water passing through the secondary pipe 8 has a predetermined temperature or higher, - The on-off valve 14 disposed on the pipe 13 branched from the secondary pipe 6 is set to open when the internal pressure of the secondary pipe 6 exceeds a predetermined constant pressure, so that the flow from the secondary pipe 8 do.
排ガスの潜熱と顕熱の双方を吸収した高温水を優先的に
取り出すことができるものである。It is possible to preferentially extract high-temperature water that has absorbed both latent heat and sensible heat of exhaust gas.
添附図面は本考案の実施例を示す図であり、図中１は排
ガス流管、２はコンタクト式熱交換器、３は温水出口、
４は温水溜り、５はポンプ、６は一次管、７は熱交換器
、８は二次管、９は温水溜り、１０は開閉弁、１３は一
次枝管、１４は開閉弁、１７は送水管、１８は開閉弁で
ある。The attached drawings are diagrams showing an embodiment of the present invention, in which 1 is an exhaust gas flow pipe, 2 is a contact type heat exchanger, 3 is a hot water outlet,
4 is a hot water reservoir, 5 is a pump, 6 is a primary pipe, 7 is a heat exchanger, 8 is a secondary pipe, 9 is a hot water reservoir, 10 is an on-off valve, 13 is a primary branch pipe, 14 is an on-off valve, 17 is a feed Water pipe 18 is an on-off valve.
Claims (1)
該コンタクト式熱交換器２の温水出口３と排ガス流管１
の上流に配した熱交換器７の間をポンプ５を有する一次
管６により連結し、熱交換器７の出口に連る二次管８に
配した開閉弁１０を、該二次管内を通る温水が一定温度
以上になった時、開となるように定めると共に、前記−
次管６から分岐した一次枝管１３に配した開閉弁１４を
、二次管８の開閉弁１０の開に伴い一次管内圧が一定圧
以下になった時閉となるように且つ二次管８の開閉弁１
０の閉に伴い一次管内圧が一定圧以上になった時、開と
なるように定め、更に上記コンタクト式熱交換器２に連
る送水管１７に配した開閉弁１８を一次管６内の温水が
一定温度以上になった時、開となるように定めて成る排
ガス熱回収装置。A contact heat exchanger 2 is arranged at the end of the exhaust gas flow pipe 1,
Hot water outlet 3 and exhaust gas flow pipe 1 of the contact heat exchanger 2
A primary pipe 6 with a pump 5 connects the heat exchangers 7 disposed upstream of the When the hot water reaches a certain temperature or higher, it is set to open, and the
The on-off valve 14 disposed on the primary branch pipe 13 branched from the secondary pipe 6 is configured so that it closes when the on-off valve 10 of the secondary pipe 8 opens and the internal pressure of the primary pipe becomes below a certain pressure. 8 on-off valve 1
When the internal pressure of the primary pipe becomes equal to or higher than a certain pressure due to the closing of the contact type heat exchanger 2, an on-off valve 18 arranged in the water pipe 17 connected to the contact type heat exchanger 2 is set to open. An exhaust gas heat recovery device that is designed to open when hot water reaches a certain temperature or higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980083570U JPS6034950Y2 (en) | 1980-06-13 | 1980-06-13 | Exhaust gas heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980083570U JPS6034950Y2 (en) | 1980-06-13 | 1980-06-13 | Exhaust gas heat recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5710690U JPS5710690U (en) | 1982-01-20 |
| JPS6034950Y2 true JPS6034950Y2 (en) | 1985-10-17 |
Family
ID=29445889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980083570U Expired JPS6034950Y2 (en) | 1980-06-13 | 1980-06-13 | Exhaust gas heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6034950Y2 (en) |
-
1980
- 1980-06-13 JP JP1980083570U patent/JPS6034950Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5710690U (en) | 1982-01-20 |
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