CN1847755A - High temperature heat pump set for recovering afterheat of power plant and printing and dyeing industry - Google Patents
High temperature heat pump set for recovering afterheat of power plant and printing and dyeing industry Download PDFInfo
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- CN1847755A CN1847755A CN 200610043525 CN200610043525A CN1847755A CN 1847755 A CN1847755 A CN 1847755A CN 200610043525 CN200610043525 CN 200610043525 CN 200610043525 A CN200610043525 A CN 200610043525A CN 1847755 A CN1847755 A CN 1847755A
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- high temperature
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Abstract
The high temperature heat pump set for recovering afterheat of power plant and printing and dyeing industry includes compressor, condenser, expansion valve and evaporator connected successively. It features the solenoid valve connected in the pipeline and with one end contained to the expansion valve and the other end connected to the pipeline between the condenser and the expansion valve. On the compressor, there is also heat exchange plate connected to the water pump. Inside the pipeline, there is mixed work medium comprising R22 10-35 %, R142 5-40% and R236 30-80 %. The high temperature heat pump set of the present invention can lower the temperature of the drained water from 30-60 deg.c to below 25 deg.c and raise the heat supplying water temperature to above 70 deg.c, so as to raise the utilization rate of geoheat energy and industrial afterheat.
Description
Technical field
The present invention relates to a kind of power plant, printing and dyeing industry field waste heat recovery high temperature heat pump unit, belong to heating air-conditioning equipment.
Background technology
The conventional heat pump device utilizes the low-grade heat source temperature not surpass 25 ℃ because be subjected to the restriction of refrigeration working medium, and the heat pump maximum water temperature can not surpass 65 ℃, and it is not very big applying it to the industrial circle meaning.At present, industry surplus (give up) recuperation of heat mainly is to utilize heat exchanger to carry out heat recovery, when surplus (giving up) hot temperature reduce to heated medium relatively near the time just cannot utilize again, also have a large amount of heats not to be extracted out.If utilize the source pump of existing producer that the water of the heat supply more than 70 ℃ is provided, condensing pressure all will be above 30bar, and this certainly will cause compressor to burn rapidly with heat exchanger exploding; In addition, the hidden danger that is caused by high pressure also will greatly increase.
Summary of the invention
Purpose of the present invention is intended to overcome the defective that prior art exists, in order to improve utilization rate to geothermal energy resources or industry surplus (giving up) heat, reach the discharge standard of country, on the other hand, for the heating project not increase hot burden for users, still adopting plain cast iron formula radiator is principle, then reduces the thermal energy consumption of heating process for industrial process as far as possible, and a kind of novel power plant, printing and dyeing industry field waste heat recovery high temperature heat pump unit are provided.
Technical scheme of the present invention is: a kind of power plant, printing and dyeing industry field waste heat recovery high temperature heat pump unit, it comprises compressor, condenser, expansion valve and the evaporimeter that connects successively, characteristics are, on compressor, connect expansion valve and magnetic valve successively by pipeline, the other end of magnetic valve is connected on the pipeline between condenser and the expansion valve, also being connected with plate on compressor changes, plate changes with water pump and is connected, and is provided with the mixing circulation working medium of being made up of monochlorodifluoromethane (R22), difluoro monochlorethane (R142), HFC-236fa (R236) in the whole pipeline.
The percentage by weight of each component is in the above-mentioned mixing circulation working medium:
Monochlorodifluoromethane (R22) 10-35%
Difluoro monochlorethane (R142) 5-40%
HFC-236fa (R236) 30-80%.
The present invention compared with prior art has progressive and substantive distinguishing features very significantly:
The one, high temperature heat pump unit of the present invention can be reduced to the draining about 30～60 ℃ below 25 ℃, satisfies discharging standards.
The 2nd, the heat supply water temperature can be brought up to more than 70 ℃, reaches as high as 90 ℃, can satisfy the temperature requirement of plain cast iron radiator; And the system of water source heat pump that uses at present is because a variety of causes, its supply water temperature is the highest can only to reach 55 ℃, is used for heating causing increasing a large amount of initial outlaies by means of the expensive fan coil of price, add large user's financial burden, be unsuitable for promoting the use of towards general public.
The 3rd, systematic energy efficiency ratio is in (Energy Efficiency Ratio=unit interval is used for the electric energy that energy/the unit interval compressor is consumed of heat supply) more than 3, and average Energy Efficiency Ratio is about 4.
Application the present invention can improve the utilization rate to geothermal energy or industrial exhaust heat, is an energy-conservation high-tech product that combines with environmental protection.
Below in conjunction with drawings and Examples the present invention is at length explained.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
The explanation of accompanying drawing drawing:
1 condenser, 2 devices for drying and filtering, 3 compressors, 4 plates change, 5 water pumps, 6 evaporimeters, 7 expansion valves, 8 magnetic valves, 9 expansion valves.
Specific embodiments
Referring to accompanying drawing, by pipeline compressor 3, condenser 1, expansion valve 7 and evaporimeter 6 are connected in regular turn, compressor 3 adopts totally-enclosed or semi-closed compressor, condenser 1 and evaporimeter 6 are shell and tube exchanger, more than three kinds of equipment add the four big critical components that expansion valve 7 is compression type heat pumping systems; On compressor 3, connect expansion valve 9 and magnetic valve 8 successively by pipeline, the other end of magnetic valve 8 is connected on the pipeline between condenser 1 and the expansion valve 7, on compressor 3, also be connected with plate and change 4, plate changes 4 and is connected with water pump 5, magnetic valve 8, expansion valve 9 and oil cooling but with plate change 3, water pump 4 is the parts for guaranteeing that when condenser 1 leaving water temperature is high unit can safe operation be provided with; Between condenser 1 and expansion valve 7, also device for drying and filtering 2 can be set, clean with the assurance system; In whole pipeline, pour into the mixing circulation working medium of forming by monochlorodifluoromethane (R22), difluoro monochlorethane (R142), HFC-236fa (R236) at last.
For the name of cycle fluid, adopt following rule:
R
(m-1) (n+1) (x) (y) (z)Its molecular formula is C
mH
nF
xCl
yBr
z, and: n+x+y+z=2m+2, as being arranged behind the code name, a or b represent ppolymorphism, three kinds of components of mixing circulation working medium of the present invention are:
| Code name | Molecular formula | Chemical name |
| R22 | CHF 2Cl | Monochlorodifluoromethane |
| R236 | C 3H 2F 6 | HFC-236fa |
| R142 | C 2H 3F 2Cl | The difluoro monochlorethane |
Wherein, the proportioning of each component (percentage by weight) is:
Monochlorodifluoromethane (R22) 10-35%
Difluoro monochlorethane (R142) 5-40%
HFC-236fa (R236) 30-80%.
Be several experimental examples of mixing circulation working medium of the present invention (cold-producing medium) below:
Experimental example 1, getting R22 cold-producing medium percentage by weight is 10%, and R142 cold-producing medium percentage by weight is 10%, and R236 cold-producing medium percentage by weight is 80% to mix, and forms a kind of high temperature refrigerant.
Experimental example 2, getting R22 cold-producing medium percentage by weight is 15%, and R142 cold-producing medium percentage by weight is 15%, and R236 cold-producing medium percentage by weight is 70% to mix, and forms a kind of high temperature refrigerant.
Experimental example 3, getting R22 cold-producing medium percentage by weight is 20%, and R142 cold-producing medium percentage by weight is 20%, and R236 cold-producing medium percentage by weight is 60% to mix, and forms a kind of high temperature refrigerant.
Experimental example 4, getting R22 cold-producing medium percentage by weight is 25%, and R142 cold-producing medium percentage by weight is 25%, and R236 cold-producing medium percentage by weight is 50% to mix, and forms a kind of high temperature refrigerant.
Experimental example 5, getting R22 cold-producing medium percentage by weight is 30%, and R142 cold-producing medium percentage by weight is 30%, and R236 cold-producing medium percentage by weight is 40% to mix, and forms a kind of high temperature refrigerant.
Experimental example 6, getting R22 cold-producing medium percentage by weight is 30%, and R142 cold-producing medium percentage by weight is 40%, and R236 cold-producing medium percentage by weight is 30% to mix, and forms a kind of high temperature refrigerant.
Experimental example 7, getting R22 cold-producing medium percentage by weight is 35%, and R142 cold-producing medium percentage by weight is 35%, and R236 cold-producing medium percentage by weight is 30% to mix, and forms a kind of high temperature refrigerant.
The course of work of this high temperature heat pump unit of brief description:
The flow process of cycle fluid in the high temperature heat pump unit is: cycle fluid is sucked back by compressor 3 after condenser 1, device for drying and filtering 2, expansion valve 7, evaporimeter 6 are flowed through in compressor 3 beginnings successively, and the concrete course of work is:
High-temperature high-pressure refrigerant (the being cycle fluid) steam that compressor 3 the is discharged recirculated water that is condensed in the device 1 is taken away and is condensed into high temperature high pressure liquid, refrigerant liquid becomes the gas-liquid mixture of low-temp low-pressure after expansion valve 7 throttlings, the heat of its absorption low-temperature heat source water flashes to low-temp low-pressure gas again in evaporimeter 6, sucked back by compressor, thereby the process of heating is finished in the circulation that goes round and begins again.In the course of the work, when water temperature was higher in the condenser 1, magnetic valve 8 was opened, the sub-fraction cold-producing medium directly sprays into compressor 3 through expansion valve 9 throttlings and cools off, water pump 5 entrys into service are meanwhile changed 4 coolings with lubricating oil by plate, run well to guarantee unit.
Industrial surplus (giving up) hot water, the underground heat tail water of evaporimeter 6 of flowing through can be cooled to below 25 ℃ by 30～60 ℃ and recharge or discharge; The heat supply water of condenser 1 of flowing through can be heated to more than 70 ℃ by 40～60 ℃ and (reach as high as 90 ℃), in order to heat supply.
The key of using the technology of the present invention is to have suitable low-temperature heat source, and the temperature of this low-temperature heat source is advisable with 30～60 ℃; In addition in design phase of system, to conscientiously calculate each parts of heat pump according to the size of heating load, type, power as compressor, the type of condenser, evaporimeter, area, the working medium filling quantity of heat pump, the lift of water pump, flow, and the parameters such as type selecting of other appurtenances.Only design suitable heat pump, can guarantee the reasonable operation therein of mixing circulation working medium, to obtain desirable operation result.
Claims (2)
1, a kind of power plant, printing and dyeing industry field waste heat recovery high temperature heat pump unit, it comprises the compressor (3) that connects successively by pipeline, condenser (1), expansion valve (7) and evaporimeter (6), it is characterized in that, upward connect expansion valve (9) and magnetic valve (8) successively at compressor (3) by pipeline, the other end of magnetic valve (8) is connected on the pipeline between condenser (1) and the expansion valve (7), change (4) at compressor (3) upper junction plate, plate changes (4) and is connected with water pump (5), is provided with in the whole pipeline by monochlorodifluoromethane (R22), difluoro monochlorethane (R142), the mixing circulation working medium that HFC-236fa (R236) is formed.
2, power plant according to claim 1, printing and dyeing industry field waste heat recovery high temperature heat pump unit is characterized in that, the percentage by weight of each component is in the described mixing circulation working medium:
Monochlorodifluoromethane (R22) 10-35%
Difluoro monochlorethane (R142) 5-40%
HFC-236fa (R236) 30-80%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100435259A CN100410599C (en) | 2006-04-08 | 2006-04-08 | High temperature heat pump set for recovering afterheat of power plant and printing and dyeing industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100435259A CN100410599C (en) | 2006-04-08 | 2006-04-08 | High temperature heat pump set for recovering afterheat of power plant and printing and dyeing industry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1847755A true CN1847755A (en) | 2006-10-18 |
| CN100410599C CN100410599C (en) | 2008-08-13 |
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ID=37077417
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100435259A Active CN100410599C (en) | 2006-04-08 | 2006-04-08 | High temperature heat pump set for recovering afterheat of power plant and printing and dyeing industry |
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| Country | Link |
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| CN (1) | CN100410599C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101520257B (en) * | 2009-03-31 | 2012-05-02 | 淮安恒信水务科技有限公司 | High-low temperature waste water double-channel heat recovery heat pump system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3119436A1 (en) * | 1981-05-14 | 1982-12-02 | Haase-Wärme GmbH, 2350 Neumünster | Method of recovering environmental heat for heating purposes or the like by means of a refrigerant circuit, evaporating a refrigerant, and refrigerant circuit |
| CN1171052C (en) * | 2000-12-29 | 2004-10-13 | 天津大学 | Middle-and high-temp heat pump equipment |
| CN1133047C (en) * | 2001-03-14 | 2003-12-31 | 清华同方股份有限公司 | Heat pump air conditioners suitable for cold area |
| DE10159892B4 (en) * | 2001-12-06 | 2006-08-24 | Stiebel Eltron Gmbh & Co. Kg | Chiller with a recuperator |
| CN2562142Y (en) * | 2002-08-15 | 2003-07-23 | 陈成 | Heat pump central heat suppliers |
| CN2932239Y (en) * | 2006-04-08 | 2007-08-08 | 烟台蓝德空调工业科技有限公司 | High temperature heat pump set used for reclaiming waste heat in the field of power plant and printing and dyeing industry |
-
2006
- 2006-04-08 CN CNB2006100435259A patent/CN100410599C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101520257B (en) * | 2009-03-31 | 2012-05-02 | 淮安恒信水务科技有限公司 | High-low temperature waste water double-channel heat recovery heat pump system |
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| Publication number | Publication date |
|---|---|
| CN100410599C (en) | 2008-08-13 |
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Owner name: YANTAI LANDE AIR CONDITIONING INDUSTRIES CO., LTD. Free format text: FORMER OWNER: LANDE AIR CONDITIONER INDUSTRY SCIENCE + TECHNOLOGY CO., LTD., YANTAI Effective date: 20111101 |
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Effective date of registration: 20111101 Address after: 264003 Shandong Province, Yantai city Laishan District Blue Road No. 3 Patentee after: Yantai Lande Air Conditioning Industries Co., Ltd. Address before: Laishan District 264003 of Shandong province Yantai City Shengquan Industrial Park Blue Road No. 3 Patentee before: Lande Air Conditioner Industry Science & Technology Co., Ltd., Yantai |