JPH0432656A - Hot water supplying device using exhaust heat of engine - Google Patents
Hot water supplying device using exhaust heat of engineInfo
- Publication number
- JPH0432656A JPH0432656A JP2136251A JP13625190A JPH0432656A JP H0432656 A JPH0432656 A JP H0432656A JP 2136251 A JP2136251 A JP 2136251A JP 13625190 A JP13625190 A JP 13625190A JP H0432656 A JPH0432656 A JP H0432656A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- hot water
- storage tank
- heat exchanger
- water 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 239000007788 liquid Substances 0.000 claims description 18
- 238000000605 extraction Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 12
- 230000007423 decrease Effects 0.000 abstract description 3
- 239000000498 cooling water Substances 0.000 abstract 2
- 239000000110 cooling liquid Substances 0.000 abstract 1
- 239000002826 coolant Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 239000008399 tap water Substances 0.000 description 5
- 235000020679 tap water Nutrition 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、フージェネレー／ヨン装置やヒートポンプ装
置などの排熱回収装置付きエンジン作業機において、そ
のエンジンの排熱を給湯に利用する方式の装置に関する
。Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a method of utilizing the exhaust heat of the engine for hot water supply in an engine working machine equipped with an exhaust heat recovery device such as a heat generation system or a heat pump device. Regarding equipment.
（従来の技術）
この種のエンジン排熱利用式給湯装置には、従来では、
第４図に示すものがある。(Conventional technology) Conventionally, this type of engine exhaust heat utilization type water heater has the following features:
There is one shown in Figure 4.
これは、エンジン３の排熱を熱取出し用熱交換器１２及
び熱受取り用熱交換器２８を順に介して貯湯槽３０内の
水に伝達することにより、貯湯槽３０の水入口３５から
導入した水道水を加温して導出口３６から給湯需要部所
へ供給するようにしたものである。上記の貯湯槽３０の
貯湯容量は給湯需要のピーク量を補える容量に設定しで
ある。This introduces exhaust heat from the engine 3 from the water inlet 35 of the hot water storage tank 30 by transmitting the exhaust heat from the engine 3 to the water in the hot water tank 30 via the heat exchanger 12 for heat extraction and the heat exchanger 28 for heat reception in this order. Tap water is heated and then supplied from the outlet 36 to the hot water demand area. The hot water storage capacity of the hot water storage tank 30 is set to a capacity that can compensate for the peak demand for hot water supply.
そして、その設定貯湯容量に合わせて貯湯槽３０を製作
するとともに、熱受取り用熱交換器２８の与熱部２８ａ
を貯湯槽３０の貯溜水に浸漬させである。Then, the hot water storage tank 30 is manufactured according to the set hot water storage capacity, and the heating section 28a of the heat receiving heat exchanger 28 is manufactured.
is immersed in the water stored in the hot water tank 30.
（発明が解決しようとする課題）
上記の従来技術は、熱取出し用熱交換器１２の受熱部１
２ｂが腐食してピンホールができた場合であっても、熱
取出し用熱交換器１２の与熱部１２ａ内を流れるエンジ
ン冷却液が貯湯槽３０内の水道水に混入することを熱受
取り用熱交換器２８の与熱部２８ａて防止できる点て優
れるが、製作コストが高いという問題が残されていた。(Problems to be Solved by the Invention) The above-mentioned conventional technology has a heat receiving part 1 of a heat exchanger 12 for heat extraction.
2b is corroded and a pinhole is formed, the engine coolant flowing through the heating part 12a of the heat extraction heat exchanger 12 will not mix with the tap water in the hot water storage tank 30. Although the heat exchanger 28 is advantageous in that it can prevent the heating part 28a from being damaged, the problem remains that the manufacturing cost is high.
即ち、貯湯槽３０は、貯湯容量に合わせて特注している
ので、生産数量が少なくならざるを得ず、製作コストが
高くつく。また、熱受取り用熱交換器２８も、貯湯槽３
０の寸法に合わせて特注する必要があるので、製作コス
トが高くつく。このため、エンジン排熱利用式給湯装置
の全体の製作コストが高くなるのである。That is, since the hot water storage tank 30 is custom-made according to the hot water storage capacity, the production quantity has to be small and the manufacturing cost is high. In addition, the heat exchanger 28 for receiving heat is also connected to the hot water storage tank 3.
Since it needs to be custom-made to match the dimensions of 0, the manufacturing cost is high. For this reason, the overall manufacturing cost of the engine exhaust heat utilization hot water supply device increases.
そこで、本発明者は、本発明に先だって次のことを考え
た。Therefore, the inventor of the present invention considered the following prior to the present invention.
これは、第３図の先発明例に示すように、特注の貯湯槽
３０の外側に熱受取り用熱交換器２８を配置したもので
ある。As shown in the example of the prior invention shown in FIG. 3, this is an arrangement in which a heat exchanger 28 for receiving heat is placed outside a custom-made hot water storage tank 30.
この場合、水循環ポンプ３３が必要になるものの、熱受
取り用熱交換器２８に安価な市販品を採用してコストを
大幅に下げれるので、全体のコストを低減できることが
分かった。しかし、特注の貯湯槽３０のコストが高いま
まなので、全体のコストをさらに低減させるうえでは改
善の余地が残されていた。In this case, although the water circulation pump 33 is required, it has been found that the overall cost can be reduced because an inexpensive commercially available product can be used as the heat receiving heat exchanger 28 and the cost can be significantly reduced. However, since the cost of the custom-made hot water tank 30 remains high, there remains room for improvement in further reducing the overall cost.
本発明は、エンジン排熱利用式給湯装置の製作コストを
低減することを目的とする。An object of the present invention is to reduce the manufacturing cost of a water heater using engine exhaust heat.
（課題を解決するための手段）
本発明は、上記目的を達成するために、エンジン排熱利
用式給湯装置を次のように構成した。(Means for Solving the Problems) In order to achieve the above object, the present invention has configured an engine exhaust heat utilization type water heater as follows.
（請求項１の発明）
例えば、第１図又は第２図に示すように、エンジン３の
排熱を、熱取出し用熱交換器１２及び熱受取り用熱交換
器２８を順に介して、貯湯槽３０内の水に伝達可能に構
成し、貯湯槽３０に水入口３５と導出口３６とを設けて
構成した、エンジン排熱利用式給湯装置において、
熱受取り用熱交換器２８は、与熱部２８ａと受熱部２８
ｂとを備え、その受熱部２８ｂの冷水導入口３８を導出
口３６を介して貯湯槽３０に連通するとともに、同上の
受熱部２８ｂの温水導出口３９を水入口３５を介して貯
湯槽３０に連通させて構成した。(Invention of Claim 1) For example, as shown in FIG. 1 or FIG. In the hot water supply system using engine exhaust heat, which is configured to be able to transmit heat to water in the hot water storage tank 30 and provided with a water inlet 35 and an outlet 36 in the hot water storage tank 30, the heat exchanger 28 for receiving heat is connected to the heating section. 28a and heat receiving part 28
The cold water inlet 38 of the heat receiving section 28b is connected to the hot water tank 30 via the outlet 36, and the hot water outlet 39 of the heat receiving section 28b is connected to the hot water tank 30 via the water inlet 35. It was configured to communicate.
（請求項２の発明）
例えば第１図に示すように、上記構成において、さらに
次の構成を加えた。(Invention of Claim 2) For example, as shown in FIG. 1, the following configuration is further added to the above configuration.
熱取出し用熱交換器１２の受熱部１２ｂと熱受取り用熱
交換器２８の与熱部２８ａとの間で、熱媒液を熱媒液循
環ポンプ３２で強制循環可能に構成し、熱受取り用熱交
換器２８の受熱部２８ｂと貯湯槽３０との間で、水を水
循環ポンプ３３で強制循環可能に構成し、水循環ポンプ
３３の送水量を熱媒液循環ポンプ３２の送液量よりも小
さい値に設定した。Between the heat receiving part 12b of the heat exchanger 12 for heat extraction and the heating part 28a of the heat exchanger 28 for heat receiving, the heat medium liquid is configured to be able to be forcedly circulated by a heat medium liquid circulation pump 32. Water is configured to be forcedly circulated between the heat receiving part 28b of the heat exchanger 28 and the hot water storage tank 30 by a water circulation pump 33, and the amount of water sent by the water circulation pump 33 is smaller than the amount of water sent by the heat medium liquid circulation pump 32. set to the value.
（実施例） 以下、本発明の実施例を図面で説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.
（第１実施例）
第１図は、コージェネレーンヨン装置１の全体系統図で
あり、まず、その概略構成を説明する。(First Embodiment) FIG. 1 is an overall system diagram of a cogeneration system 1, and first, its schematic configuration will be explained.
コージェ不し−／ヨン装貢１は、最大１５ＫＷの電力を
供給するとともにエンジン排熱を給湯に利用するように
なっており、防音ケース２内には、液冷式ガスエンジン
３及び発電機４と、エンジン排熱回収用回路５・エンジ
ン冷却用回路６・及びエンジン冷却液の放熱制御装置７
を備えている。The Koje Fu-/Yon Soko 1 supplies a maximum of 15KW of electricity and uses engine exhaust heat to heat hot water. Inside the soundproof case 2, there is a liquid-cooled gas engine 3 and a generator 4. , an engine exhaust heat recovery circuit 5, an engine cooling circuit 6, and an engine coolant heat radiation control device 7.
It is equipped with
そして、エンジン３で発電機４を駆動することによって
、発電機４の電力を制御盤８から外部の電力負荷へ供給
すると同時に、エンジン３のＷＦ 熱ヲエンジン冷却液
を介してエンジン排熱回収用回路５で回収する。By driving the generator 4 with the engine 3, the power of the generator 4 is supplied from the control panel 8 to the external power load, and at the same time, the WF heat of the engine 3 is transferred to the engine coolant for engine exhaust heat recovery. It is recovered in circuit 5.
エンジン排熱回収用回路５は、エンジン３のウォータシ
ャケ、ト１０の出口を、排気熱吸収用熱交換器１１の受
熱部１１ｂ・熱取出し用熱交換器１２の与熱部１２ａ・
エンジン冷却液循環ポンプ１３を順に経てウォータジャ
ケラ１−１０の人口に接続してなる。なお、エンジン３
の排気ガスは、排気熱吸収用熱交換器１１の与熱部１１
ａからマフラ１５を経て防音ケース２の外部に排出され
る。The engine exhaust heat recovery circuit 5 connects the outlet of the water sink of the engine 3 to the heat receiving part 11b of the exhaust heat absorption heat exchanger 11, the heating part 12a of the heat extraction heat exchanger 12,
It is connected to the water jackets 1-10 through the engine coolant circulation pump 13 in order. In addition, engine 3
The exhaust gas is transferred to the heating section 11 of the exhaust heat absorption heat exchanger 11.
a, is discharged to the outside of the soundproof case 2 via the muffler 15.
そして、ウォータジャケット１０で温度上昇したエンジ
ン冷却液は、排気熱吸収用熱交換器１１の受熱部１１ｂ
を通過する間に排気ガス熱を吸収してさらに温度上昇し
、その後、熱取出し用熱交換器１２の与熱部１２ａを通
過する間にその受熱部１２ｂ内を流れる水道水へ放熱し
て、ウォータシャケ、ト１０へ戻される。Then, the engine coolant whose temperature has increased in the water jacket 10 is transferred to the heat receiving part 11b of the exhaust heat absorption heat exchanger 11.
While passing through, the exhaust gas heat is absorbed and the temperature further rises, and then, while passing through the heating section 12a of the heat extraction heat exchanger 12, the heat is radiated to the tap water flowing inside the heat receiving section 12b, The watershake is returned to To10.
また、エンジン冷却用回路６は、ウォータジャケット１
０の出口を、ラジェータ１７・１７とエンジン冷却液循
環ポンプ１３とを順に経てウォータジャケット１０の入
口に接続してなる。各ラジＸ−−タ１７には電動式ラジ
ェータファン１８の冷却風が流通可能とされる。ラジェ
ータファン１８のモータ１９には、発電機４の電力を制
御盤８を介して供給するようになっている。Further, the engine cooling circuit 6 includes a water jacket 1
The outlet of the water jacket 10 is connected to the inlet of the water jacket 10 through the radiators 17, 17 and the engine coolant circulation pump 13 in this order. Cooling air from an electric radiator fan 18 is allowed to flow through each radiator X-tor 17 . Electric power from the generator 4 is supplied to the motor 19 of the radiator fan 18 via the control panel 8.
また、放熱制御装置７は、発電負荷の増大でエンジン３
の発生熱が多くなったり熱需要の減少で熱取出し用熱交
換器１２からの放熱量が少なくなったりして、エンジン
冷却液の温度が所定の温度よりも上昇した場合に、エン
ジン排熱回収用回路５内のエンジン冷却液をエンジン冷
却用回路６から放熱させることにより、エンジン冷却液
の液温を一定の温度範囲内に保つようにするものである
。The heat radiation control device 7 also controls the engine 3 due to an increase in the power generation load.
When the temperature of the engine coolant rises above a predetermined temperature due to an increase in heat generation or a decrease in the heat demand, the amount of heat released from the heat exchanger 12 for heat extraction decreases, engine exhaust heat recovery is performed. By radiating heat from the engine coolant in the engine cooling circuit 5 from the engine cooling circuit 6, the temperature of the engine coolant is maintained within a certain temperature range.
即ち、放熱制御装置７は、温度検出器２１でエンジン排
熱回収用回路５を通過するエンジン冷却液の液温を検出
して放熱制御用コントローラ２２を介して電動式の可変
分流弁２３を分流制御することにより、ラジェータ１７
の放熱量を制御するものであって、温度検出器２１の液
温の検出温度が低い領域よりも高い領域の方が、エンジ
ン冷却用回路６への分流率を大きくしてラジェータ１７
の放熱量を多くするように構成しである。That is, the heat radiation control device 7 detects the liquid temperature of the engine coolant passing through the engine exhaust heat recovery circuit 5 with the temperature detector 21, and divides the electric variable flow valve 23 via the heat radiation control controller 22. By controlling the radiator 17
The system controls the amount of heat dissipated from the radiator 17 by increasing the division ratio to the engine cooling circuit 6 in a region where the liquid temperature detected by the temperature sensor 21 is higher than in a lower region.
The structure is designed to increase the amount of heat dissipated.
なお、ウォータジャケット１０の出口は、サーモスク、
ト弁２５を介してエンジン冷却液循環ポンプ１３の吸込
み口にバイパスされ、エンジン３の冷機始動時に暖機を
促進するようにしである。Note that the exit of the water jacket 10 is a thermosque,
The coolant is bypassed to the suction port of the engine coolant circulation pump 13 via the exhaust valve 25 to promote warm-up when the engine 3 is started cold.
上記構成のコージェネレーンヨン装置ｌに給湯装置が設
けられる。A hot water supply device is provided in the cogeneration system I having the above configuration.
即ち、熱取出し用熱交換器１２の受熱部１．２ ｂが第
１循環路２７を介して熱受取り用熱交換器２８の与熱部
２８ａに連通され、熱受取り用熱交換器２８の受熱部２
８ｂが第２循環路２９を介して貯湯槽３ｏの内部空間に
連通される。That is, the heat receiving part 1.2b of the heat exchanger 12 for heat extraction is connected to the heating part 28a of the heat exchanger 28 for heat receiving via the first circulation path 27, and the heat receiving part 1.2b of the heat exchanger 28 for heat receiving Part 2
8b is communicated with the internal space of the hot water tank 3o via the second circulation path 29.
第１循環路２７内の熱媒液は、熱媒液循環ポンプ３２で
強制的に循環される。第２循環路２９内には貯湯槽３０
内の水道水が水循環ポンプ３３で強制的に循環される。The heat medium liquid in the first circulation path 27 is forcibly circulated by the heat medium liquid circulation pump 32. A hot water storage tank 30 is provided in the second circulation path 29.
The tap water inside is forcibly circulated by a water circulation pump 33.
そして、熱媒液循環ポンプ３２の送液量が４５ １２／
ｍｉｎに設定されるのに対して、水循環ポツプ３３の送
水量は２０１！／ｓｉｎ。Then, the amount of liquid sent by the heat medium liquid circulation pump 32 is 45 12/
The amount of water supplied by the water circulation pop-up 33 is 201! /sin.
に設定されている。is set to .
貯湯槽３０は、深夜電力利用形の貯湯槽を利用したもの
であって、水入口３５と導出口３６とを備え、電気ヒー
タを取付は口から取り外した法帖で設置しである。The hot water storage tank 30 is a hot water storage tank that utilizes late-night electricity, and is equipped with a water inlet 35 and a water outlet 36, and an electric heater is installed in a pot that is removed from the mouth.
また、熱受取り用熱交換器２８の受熱部２８ｂの冷水導
入口３８が貯湯槽３０の導出口３６を介して貯湯槽３０
の内部空間に連通されるとともに、同上の受熱部２８ｂ
の温水導出１３つが貯湯槽３０の水入口３５を介して貯
湯槽３０の内部空間に連通される。Further, the cold water inlet 38 of the heat receiving part 28b of the heat receiving heat exchanger 28 is connected to the hot water storage tank 30 via the outlet port 36 of the hot water storage tank 30.
The heat receiving part 28b
13 hot water outlets are communicated with the internal space of the hot water storage tank 30 via the water inlet 35 of the hot water storage tank 30.
そして、エンジン３の排熱は熱取出し用熱交換器１２及
び熱受取り用熱交換器２８を順に介して貯湯槽３０内の
水に伝達され、これにより、貯湯槽３０内の水道水が加
温されて導出口３６から給？＃ｌ需要箇所へ送られる。Then, the exhaust heat of the engine 3 is transferred to the water in the hot water tank 30 via the heat exchanger 12 for heat extraction and the heat exchanger 28 for heat reception in order, thereby heating the tap water in the hot water storage tank 30. Is it supplied from the outlet 36? #l Sent to the demand point.
（第２実施例）
第２図は、第２実施例を示し、第１図に相当する模式図
である。(Second Embodiment) FIG. 2 shows a second embodiment and is a schematic diagram corresponding to FIG. 1.
コージェネレー／Ｍン装置１において、符号３はガスエ
ンジンで、符号４は発電機である。この場合、熱取出し
用熱交換器１２が防音ケース２の外部に配置され、第１
循環路２７と第２循環路２９との間に自然循環式の中間
伝熱槽４３を設けて、槽内に熱取出し用熱交換器１２の
与熱部１２ａと熱受取り用熱交換器２８の受熱部２８ｂ
とを浸漬しである。第１循環路２７にはエンジン冷却液
液循環ポンプ４４が設けられ、第２循環路２９には水循
環ポンプ４５が設けられる。In the cogeneration/main system 1, reference numeral 3 is a gas engine, and reference numeral 4 is a generator. In this case, the heat exchanger 12 for heat extraction is arranged outside the soundproof case 2, and the first
A natural circulation type intermediate heat transfer tank 43 is provided between the circulation path 27 and the second circulation path 29, and the heating section 12a of the heat extraction heat exchanger 12 and the heat receiving heat exchanger 28 are connected in the tank. Heat receiving part 28b
It is soaked in water. The first circulation path 27 is provided with an engine coolant liquid circulation pump 44 , and the second circulation path 29 is provided with a water circulation pump 45 .
（発明の効果）
本発明は、上記のように構成され作用することから次の
効果を奏する。(Effects of the Invention) The present invention has the following effects because it is configured and operates as described above.
（請求項１の発明）
（ａ）貯湯槽は、その内部空間に熱受取り用熱交換器を
装着しなくてすむので、貯湯容量に見合ったものを市販
の量産品のうちから選定することが可能となる。このた
め、貯湯槽のコストを大幅に低減できる。(Invention of Claim 1) (a) Since the hot water storage tank does not need to be equipped with a heat exchanger for receiving heat in its internal space, it is possible to select one suitable for the hot water storage capacity from commercially available mass-produced products. It becomes possible. Therefore, the cost of the hot water storage tank can be significantly reduced.
（ｂ）熱受取り用熱交換器は、貯湯槽の外部に設けられ
ることから、量産の市販品を採用して特注せずにすむの
で、コストを大幅に低減できる。(b) Since the heat exchanger for receiving heat is provided outside the hot water storage tank, it is possible to use a mass-produced commercially available product and eliminate the need for custom ordering, thereby significantly reducing costs.
（ｃ）熱受取り用熱交換器と貯湯槽とを配管で接続する
にあたり、貯湯槽の水入口と導出口とをそのまま利用で
きる。このため、貯湯槽は、槽壁に配管接続用のノズル
を追加加工する必要がなくなり、生産性を高めて製作コ
ストをさらに低減できる。(c) When connecting the heat exchanger for heat receiving and the hot water storage tank with piping, the water inlet and outlet of the hot water storage tank can be used as they are. Therefore, the hot water storage tank does not require additional processing of a nozzle for connecting piping to the tank wall, which increases productivity and further reduces manufacturing costs.
従って、エンジン排熱利用式給湯装置は、全体の製作コ
ストを大幅に低減できる。Therefore, the engine exhaust heat utilization type water heater can significantly reduce the overall manufacturing cost.
（請求項２の発明）
熱媒液循環用の回路（第１循環路２７）の熱媒液の必要
循環量に対して貯湯槽の水入口の口径か小さすぎる場合
であっても、水循環ポンプの送水量を少なくすることに
より、水入口から貯湯槽内へ戻される水流の流速が遅く
なるので、槽内面がキャビテーションで侵食されるのを
防止できる。従って、貯湯槽は、長寿命化を図りながら
も、水入口の拡径加工を不要にでき、この点からも生産
性を高めて製作コストを低減できる。(Invention of Claim 2) Even if the diameter of the water inlet of the hot water tank is too small for the required circulation amount of the heat medium liquid in the heat medium liquid circulation circuit (first circulation path 27), the water circulation pump By reducing the amount of water fed, the flow rate of the water flow returned from the water inlet to the hot water storage tank becomes slower, so the inner surface of the tank can be prevented from being eroded by cavitation. Therefore, the hot water storage tank can have a long lifespan while eliminating the need to expand the diameter of the water inlet, which also increases productivity and reduces manufacturing costs.
第１図と第２図は本発明の実施例を示し、第１図は、第
１実施例を示す全体系統図である。
第２図は、第２実施例を示し、第１図に相当する模式図
である。
第３図は、先発可倒を示し、第２図に相当する図である
。
第４図は、従来例を示し、同第２図に相当する図である
。
３ エンジン、１２・・・熱取出し用熱交換器、１２ｂ
受熱部、２８ ・熱受取り用熱交換器、２８ ａ−
与熱部、２８ｂ 受熱部、３０．・貯湯槽、３２・・
熱媒液循環ポンプ、３３・水循環ポンプ、３５・貯湯槽
の水入口、３６・−貯湯槽の導出口、３８・−受熱部２
８ｂの冷水導入口、
３９・−受熱部２８ｂの温水導出口。1 and 2 show embodiments of the present invention, and FIG. 1 is an overall system diagram showing the first embodiment. FIG. 2 shows a second embodiment and is a schematic diagram corresponding to FIG. 1. FIG. 3 is a diagram corresponding to FIG. 2, showing the starting position. FIG. 4 shows a conventional example and is a diagram corresponding to FIG. 2. 3 Engine, 12... Heat exchanger for heat extraction, 12b
Heat receiving part, 28 ・Heat exchanger for heat receiving, 28 a-
Heat-giving part, 28b Heat-receiving part, 30.・Hot water tank, 32...
Heat medium liquid circulation pump, 33・Water circulation pump, 35・Water inlet of the hot water storage tank, 36・− Outlet of the hot water storage tank, 38・−Heat receiving part 2
8b cold water inlet, 39.--hot water outlet of heat receiving part 28b.
Claims (2)
２）及び熱受取り用熱交換器（２８）を順に介して、貯
湯槽（３０）内の水に伝達可能に構成し、 貯湯槽（３０）に水入口（３５）と湯出口（３６）とを
設けて構成した、エンジン排熱利用式給湯装置において
、 熱受取り用熱交換器（２８）は、与熱部（２８ａ）と受
熱部（２８ｂ）とを備え、その受熱部（２８ｂ）の冷水
導入口（３８）を湯出口（３６）を介して貯湯槽（３０
）に連通するとともに、同上の受熱部（２８ｂ）の温水
導出口（３９）を水入口（３５）を介して貯湯槽（３０
）に連通させて構成した、 ことを特徴とする、エンジン排熱利用式給 湯装置。1. The exhaust heat of the engine (3) is transferred to the heat exchanger (1) for heat extraction.
2) and a heat exchanger for receiving heat (28) in order so that the water can be transmitted to the water in the hot water storage tank (30), and the hot water storage tank (30) has a water inlet (35) and a hot water outlet (36). In the engine exhaust heat utilization type hot water supply device configured with The inlet (38) is connected to the hot water tank (30) via the hot water outlet (36).
), and the hot water outlet (39) of the heat receiving part (28b) is connected to the hot water storage tank (30) via the water inlet (35).
) A water heater using engine exhaust heat, characterized in that the water heater is configured by communicating with the engine exhaust heat.
熱受取り用熱交換器（２８）の与熱部（２８ａ）との間
で、熱媒液を熱媒液循環ポンプ（３２）で強制循環可能
に構成し、 熱受取り用熱交換器（２８）の受熱部（２８ｂ）と貯湯
槽（３０）との間で、水を水循環ポンプ（３３）で強制
循環可能に構成し、 水循環ポンプ（３３）の送水量を熱媒液循環ポンプ（３
２）の送液量よりも小さい値に設定した、 ことを特徴とする、エンジン排熱利用式給 湯装置。2. The heat medium liquid is circulated between the heat receiving part (12b) of the heat exchanger for heat extraction (12) and the heating part (28a) of the heat exchanger for heat receiving (28) using the heat medium liquid circulation pump (32). A water circulation pump (33) is configured to enable forced circulation, and a water circulation pump (33) is configured to enable forced circulation of water between the heat receiving part (28b) of the heat exchanger (28) and the hot water storage tank (30). The amount of water supplied by (33) is determined by the heat medium liquid circulation pump (3).
A water heater using engine exhaust heat, characterized in that the amount of liquid sent is set to a smaller value than the amount of liquid sent in 2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2136251A JPH0432656A (en) | 1990-05-25 | 1990-05-25 | Hot water supplying device using exhaust heat of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2136251A JPH0432656A (en) | 1990-05-25 | 1990-05-25 | Hot water supplying device using exhaust heat of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0432656A true JPH0432656A (en) | 1992-02-04 |
Family
ID=15170818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2136251A Pending JPH0432656A (en) | 1990-05-25 | 1990-05-25 | Hot water supplying device using exhaust heat of engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0432656A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5790937A (en) * | 1993-02-11 | 1998-08-04 | Thomson Multimedia S.A. | Method and apparatus for the distribution of multi-media documents |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60101443A (en) * | 1984-01-18 | 1985-06-05 | Yamaha Motor Co Ltd | Auxiliary heat collecting device of engine-driven heat pump type hot water supplier |
| JPS62190355A (en) * | 1986-02-14 | 1987-08-20 | Nippon Chikasui Kaihatsu Kk | Temperature raising device for bathing water |
-
1990
- 1990-05-25 JP JP2136251A patent/JPH0432656A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60101443A (en) * | 1984-01-18 | 1985-06-05 | Yamaha Motor Co Ltd | Auxiliary heat collecting device of engine-driven heat pump type hot water supplier |
| JPS62190355A (en) * | 1986-02-14 | 1987-08-20 | Nippon Chikasui Kaihatsu Kk | Temperature raising device for bathing water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5790937A (en) * | 1993-02-11 | 1998-08-04 | Thomson Multimedia S.A. | Method and apparatus for the distribution of multi-media documents |
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