CN202902416U - Residual heat utilization device of circulating cooling water - Google Patents
Residual heat utilization device of circulating cooling water Download PDFInfo
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- CN202902416U CN202902416U CN 201220490428 CN201220490428U CN202902416U CN 202902416 U CN202902416 U CN 202902416U CN 201220490428 CN201220490428 CN 201220490428 CN 201220490428 U CN201220490428 U CN 201220490428U CN 202902416 U CN202902416 U CN 202902416U
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- cooling water
- heat exchanger
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- circulating cooling
- water
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Abstract
A residual heat utilization device of circulating cooling water comprises a heat exchanger (1), a conveying device, a hot pump unit (2) and the like. The circulating cooling water and tap water needing heating are respectively connected with a hot water inlet (Hi) and a cold water inlet (Ci) of the heat exchanger (1) through pipelines, a hot water outlet (A) and a cold water outlet (B) of the heat exchanger (1) are respectively connected with a hot water inlet (A1) and a cold water inlet (B1) of the hot pump unit (2) through pipelines, and a cold water outlet (Ho) and a hot water outlet (Co) of the hot pump unit (2) are respectively connected with a circulating pond and a hot water box (4) through pipelines, wherein the heat exchanger (1) is a novel efficient plate heat exchanger which is assembled by metal sheets in a stacked mode, the metal sheets are in a certain corrugation shape, and sewage-source heat pumps are adopted by the hot pump unit (2). According to the residual heat utilization device of the circulating cooling water, residual heat of the circulating cooling water is recycled and used, the coefficient of heat supply (COP) of a system is effectively improved, and the COP is over 6.5.
Description
Technical field
The utility model relates to the waste heat recovery apparatus field, particularly a kind of circulating cooling water afterheat use device.
Background technology
In the normal production of industrial enterprise, because the needs of equipment and process often need a large amount of recirculated cooling waters to cool off, when normally producing, cooling water temperature changes between 35 ℃～42 ℃.At present, everybody thinks that the heat of the low-temperature water heating of temperature about 40 ℃ is difficult to direct utilization, usually by cooling tower with low-temperature heat quantity discharged to atmosphere.Some Enterprises is also arranged, directly the recirculated cooling water heat is extracted by source pump, but coefficient of heat supply (COP) only can reach about 3.3 during general heat pump heat supply, cause so a large amount of losses of heat and to a large amount of wastes of resource.
Summary of the invention
For effective waste heat to recirculated cooling water carries out recycle, the utility model provides a kind of circulating cooling water afterheat use device.
The technical solution of the utility model is: a kind of circulating cooling water afterheat use device comprises heat exchanger 1, conveying device and source pump 2 etc.: described conveying device comprises various instrument valves and connecting line; Recirculated water is connected with cold water water inlet Ci with the hot water water inlet Hi of heat exchanger 1 by pipeline respectively with the running water that is connected heating, and the hot water outlet A of heat exchanger 1 is connected with cooling water outlet B by pipeline and is connected with cold water inlet B1 with the hot water inlet A1 of source pump 2; The cooling water outlet Ho of source pump 2 is connected with hot water outlet Co to be connected with boiler with circulating water pool by pipeline and is connected;
Can be preferred, described heat exchanger 1 is a kind of new and effective plate type heat exchanger that is had the sheet metal closed assembly of certain bellows-shaped and be assembled into by a series of;
Can be preferred, the cooling water outlet B of described heat exchanger 1 is equipped with electric three-way regulating valves 3, connects respectively cold water inlet B1 and the source pump 2 of boiler 4;
Can be preferred, described source pump 2 adopts sewage source heat pump.
Beneficial effect: the utility model carries out recycle to the waste heat of recirculated cooling water, has effectively improved the coefficient of heat supply (COP) of system, and coefficient of heat supply is reached more than 6.5.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is elaborated.
Embodiment 1:
A kind of circulating cooling water afterheat use device comprises heat exchanger 1, conveying device and source pump 2 etc.: described conveying device comprises various instrument valves and connecting line; Recirculated water is connected with cold water water inlet Ci with the hot water water inlet Hi of heat exchanger 1 by pipeline respectively with the running water that is connected heating, and the hot water outlet A of heat exchanger 1 is connected with cooling water outlet B by pipeline and is connected with cold water inlet B1 with the hot water inlet A1 of source pump 2; The cooling water outlet Ho of source pump 2 is connected with hot water outlet Co to be connected with boiler with circulating water pool by pipeline and is connected;
Can be preferred, described heat exchanger 1 is a kind of new and effective plate type heat exchanger that is had the sheet metal closed assembly of certain bellows-shaped and be assembled into by a series of;
Can be preferred, the cooling water outlet B of described heat exchanger 1 is equipped with electric three-way regulating valves 3, connects respectively cold water inlet B1 and the source pump 2 of boiler 4;
Can be preferred, described source pump 2 adopts sewage source heat pump.
Recirculated cooling water about 35 ℃ and the running water of low temperature pass into respectively heat exchanger 1, and it is a kind of new type high efficient heat exchanger that is had the sheet metal closed assembly of certain bellows-shaped and be assembled into by a series of.Form the thin rectangular shape passage between the various plates, carry out exchange heat by plate, make the circulating cooling water for cooling, running water heats up.Subsequently, recirculated cooling water and running water enter source pump 2 again.Source pump 2 adopts sewage source heat pump, mainly formed by evaporimeter, compressor, condenser three parts, evaporimeter is with the medium in the heat transferred heat pump in the water at low temperature recirculated cooling water, and to condenser, condenser is with the heat transferred running water in the medium with the medium pressurized delivered for compressor.Thereby both reached the requirement that the process units water is satisfied in the cold junction water outlet, reached again the purpose that water at low temperature becomes high-temperature water.The heat pump techniques application principle is contrary Carnot cycle principle, and it is three energy variation processes that whole system is divided into:
The first process: the process that unit reclaims the water source energy.The medium of unit evaporates absorbing heat in evaporimeter, recirculated cooling water carries out heat exchange with medium in evaporimeter, and temperature reduces, and heat is discharged the Absorption of Medium heat of vaporization to medium;
The second process: unit arrives the power conversion that obtains the process of end system end.Unit self medium circulation, the gas of evaporation is sucked by compressor and compresses, and enters condenser, becomes the gas of high temperature, high pressure, prepares realize the process that heat transforms to condenser, and condenser to be connected with the heating end system to the heating of companion's heat;
The 3rd process: end system discharges process to the room with the unit energy.The high temperature of unit, the medium of high pressure enter condenser condenses, carry out heat exchange with the side het water, emit heat, and heating system water, realization will be exported in the summation of the electric energy of the systemic heat of evaporimeter and input side het water's process, the side het water to the room, reaches the purpose that heats with thermal release.
The utility model at first utilizes the high efficient heat exchanging technology of heat exchanger 1, directly utilize recirculated cooling water about 35 ℃ with about about 10 ℃ tap water heating to 30 ℃, and then from recirculated cooling water, extract heat and use it for about 30 ℃ tap water heating to 50 ℃ with source pump 2, and 50 ℃ of hot water are sent into boiler, in order to utilize.
Before and after transforming significantly energy-conservation principle be: 1) directly utilize the lower running water of low temperature exhaust heat heating-up temperature, make the temperature rise amplitude of running water reach 20 ℃.Compare with existing heat pump techniques, can reduce the electric quantity consumption of half.2) utilize heat pump to extract low-temperature heat quantity and intensification, because the low temperature exhaust heat coolant-temperature gage is higher, the coefficient of heat supply (COP) of whole system can be reached more than 6.5, far above the mean value of ordinary hot pumping system coefficient of heat supply.
The electric three-way regulating valves that the utility model adopts, correlate meter and valve adopt prior art.
Above content is the further description of the present invention being done in conjunction with optimal technical scheme, can not assert that the implementation of invention only limits to these explanations.Concerning the general technical staff of the technical field of the invention, under the prerequisite that does not break away from design of the present invention, can also make simple deduction and replacement, all should be considered as protection scope of the present invention.
Claims (4)
1. a circulating cooling water afterheat use device is characterized in that, described circulating cooling water afterheat use device comprises heat exchanger (1), conveying device and source pump (2): described conveying device comprises various instrument valves and connecting line; Recirculated cooling water is connected Ci by pipeline and the hot water water inlet (Hi) of heat exchanger (1) respectively with the running water that is connected heating with the cold water water inlet) be connected; The hot water outlet (A) of heat exchanger (1) is connected B with cooling water outlet) be connected B1 with cold water inlet by pipeline and the hot water inlet (A1) of source pump (2) respectively) be connected; The cooling water outlet (Ho) of source pump (2) is connected Co with hot water outlet) be connected 4 with circulating water pool with boiler by pipeline respectively) be connected.
2. a kind of circulating cooling water afterheat use device according to claim 1 is characterized in that, described heat exchanger (1) is a kind of new and effective plate type heat exchanger that is had the sheet metal closed assembly of certain bellows-shaped and be assembled into by a series of.
3. heat exchanger according to claim 1 and 2 (1) is characterized in that, the cooling water outlet (B) of described heat exchanger (1) is equipped with electric three-way regulating valves (3), connects respectively cold water inlet and the source pump (2) of boiler (4).
4. a kind of circulating cooling water afterheat use device according to claim 1 is characterized in that, described source pump (2) adopts sewage source heat pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220490428 CN202902416U (en) | 2012-09-25 | 2012-09-25 | Residual heat utilization device of circulating cooling water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220490428 CN202902416U (en) | 2012-09-25 | 2012-09-25 | Residual heat utilization device of circulating cooling water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202902416U true CN202902416U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220490428 Expired - Fee Related CN202902416U (en) | 2012-09-25 | 2012-09-25 | Residual heat utilization device of circulating cooling water |
Country Status (1)
| Country | Link |
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| CN (1) | CN202902416U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418217A (en) * | 2021-05-07 | 2021-09-21 | 唐山国环环保科技有限公司 | Waste heat recovery heating system |
-
2012
- 2012-09-25 CN CN 201220490428 patent/CN202902416U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418217A (en) * | 2021-05-07 | 2021-09-21 | 唐山国环环保科技有限公司 | Waste heat recovery heating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20190925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |