CN102435014A - Jet heat pump unit using light plate-fin heat exchanger - Google Patents
Jet heat pump unit using light plate-fin heat exchanger Download PDFInfo
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- CN102435014A CN102435014A CN2011102764020A CN201110276402A CN102435014A CN 102435014 A CN102435014 A CN 102435014A CN 2011102764020 A CN2011102764020 A CN 2011102764020A CN 201110276402 A CN201110276402 A CN 201110276402A CN 102435014 A CN102435014 A CN 102435014A
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Abstract
The invention relates to a jet heat pump unit using a light plate-fin heat exchanger, belonging to the technical fields of new energy and energy conservation. The jet heat pump unit adopts a dual jet pump parallel connection scheme. The shell-and-tube heat exchanger is replaced by the novel light plate-fin heat exchanger so that the load controllable range of the unit is wide, the weight of the whole body is reduced by about 30%, the system occupy area is reduced by more than 40 % and the system property indexes are increased by 10-20%. The system cost is directly reduced, and the use amount of the system refrigerant is greatly decreased, thereby reducing the operation cost of a user. Meanwhile, an efficient plate heat exchanger used by a condenser is efficient energy-saving equipment with a wide application range; and furthermore, the investment and maintenance cost of the heat exchanger is reduced so as to improve application and popularization properties of the whole set of the equipment. The jet heat pump unit is an efficient jet heat pump unit with a simple structure, convenience for use and maintenance and positive-pressure operation in the system. The application and popularization properties are greatly improved.
Description
Technical field
The present invention relates to a kind of jet heat pump unit that adopts the thistle board fin heat exchanger, is to the recovery of the waste heat that produces in the industrial processes and the device of utilization, belongs to new forms of energy and field of energy-saving technology.
Background technology
In industrial enterprise's production process; Unemployed residual heat resources, particularly low-grade heat source spread all over all trades and professions by various transducing devices, usefulness ability equipment and chemical reaction equipment generation; Usually do not add and utilize and arbitrarily discharging of quilt, not only cause yet contaminated environment of energy waste.The quantity of waste heat is very big, the seventies part specialized department is added up according to the U.S., and waste heat takies the over half of ability total amount approximately.Along with improving constantly of production technology level, the waste heat ratio descends to some extent, but still takies the quite most of of ability total amount, if be used, can practice thrift a large amount of primary energy.Data shows that China's primary energy ratio is 30%, and this numerical value is merely the half the of Japan, and than also low 3 percentage points of world average levels, the wastage of the energy is huge.According to analysis to various research documents, and our practical experience, 60% in the waste heat can be recycled through technological means.
At present, the employing heat pump can be heat from the cryopump to high temperature.So heat pump comes down to a kind of heat lifting device; Itself consumes part energy, excavates the energy of storing in the surrounding medium, improves potential temperature and utilizes; And the merit that whole heat pump assembly consumed be merely heating load 1/3rd or lower, this also is the characteristics of energy saving of heat pump.The injecting type residual heat pump is that a kind of the driving by heat energy is transported to the device of high temperature heat source with heat from low-temperature heat source, uses more extensive in the central heating field.Yet the heat exchanger of conventional spray formula residual heat pump system adopts shell-and-tube heat exchanger, and not only heat exchange efficiency is low but also bulky, maintenance difficult, and the popularization of commercial Application is restricted.
Summary of the invention
The purpose of this invention is to provide a kind of jet heat pump unit that adopts the thistle board fin heat exchanger; This unit is in the characteristics that keep original injecting type source pump; Adopt the novel light plate-fin heat exchanger to substitute shell-and-tube heat exchanger; Solve the on the low side and volume problem bigger than normal of system effectiveness of original injecting type source pump, practiced thrift the cold-producing medium consumption, reduced cost.
Technical scheme of the present invention is: a kind of jet heat pump unit that adopts the thistle board fin heat exchanger; It mainly comprises condenser, reservoir, expansion valve, evaporimeter and a liquid pump; It also comprises a generator and injector; The outlet of reservoir connects expansion valve and liquid pump respectively through control valve, and the outlet of liquid pump is connected to the import of injector through generator, and the outlet of expansion valve is connected to the ejecting port of injector through evaporimeter; The outlet of injector is connected to reservoir through condenser, and the PLC centralized Control is adopted in electrical control.Said injector adopts first injector to be connected with second injector parallel connection; Said generator is connected to the working steam inlet of first injector and the working steam inlet that warp first control valve is connected to second injector; Evaporimeter is connected to the jetting steam caused inlet of first injector and the jetting steam caused inlet that warp second control valve is connected to second injector, and the outlet of the outlet of first injector and second injector is connected to condenser; Said generator and evaporimeter adopt the thistle board fin heat exchanger, and said condenser adopts efficient plate type heat exchanger; Said source pump adopts environmental protection refrigerant as working media.
Said environmental protection refrigerant is selected from R134a cold-producing medium, R141b cold-producing medium or R236fa cold-producing medium.
The invention has the beneficial effects as follows: this injecting type source pump adopts two jet pump parallel connection schemes; Replaced shell-and-tube heat exchanger with the novel light plate-fin heat exchanger; Make that the load controlled range of unit is wide; Overall weight has reduced about 30%, and system's floor space reduces more than 40%, system performance index rising 10%-20%.Not only directly reduce system cost, also reduced the consumption of system refrigerant significantly, reduced user's operating cost.The efficient plate type heat exchanger of condenser employing simultaneously is a kind of widely used energy-efficient equipment, and has reduced the investment and the maintenance cost of heat exchanger, but increased the promotion of complete equipment.This injecting type source pump is simple in structure, working service convenient, the efficient injecting type source pump of system's malleation running, and its promotion is greatly improved.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described further.
Fig. 1 is a kind of fundamental diagram that adopts the jet heat pump unit of thistle board fin heat exchanger.
Among the figure: 1, generator, 2, evaporimeter, 3, condenser, 4, first injector, 4a, working steam inlet; 4b, jetting steam caused inlet, 4c, outlet, 5, second injector, 5a, working steam inlet; 5b, jetting steam caused inlet, 5c, outlet, 6, reservoir, 7, liquid pump; 8, expansion valve, 9, control valve, 10, first control valve, 11, second control valve; A, high temperature fluid, b, middle temperature fluid, c, cryogen, d, middle warm water, e, high-temperature water.
The specific embodiment
According to accompanying drawing embodiment is further described below.
Fig. 1 shows a kind of fundamental diagram that adopts the jet heat pump unit of thistle board fin heat exchanger.Among the figure; High temperature waste hot water/the steam that produces on the commercial production is connected with generator 1, evaporimeter 2 through pipeline, water pump successively, and refrigerant liquid is divided into two-way from reservoir 6 outlets through pipeline; One the tunnel via liquid pump 7 entering generators 1; In generator 1, carry out heat exchange, finally become the refrigerant vapour of HTHP, generator 1 port of export is connected with the working steam inlet 4a of first injector 4 and the working steam inlet 5a of second injector 5 respectively through pipeline; Wherein be provided with first control valve 10 between generator 1 and pipeline that second injector 5 is connected, can adjust according to required load; Flow through expansion valve 8 of another road of refrigerant liquid gets into evaporimeters 2; In evaporimeter 2 cold-producing medium with carry out heat exchange once more from the water at low temperature after generator 1 heat exchange; Become the refrigerant vapour of low-temp low-pressure; The outlet of evaporimeter 2 is connected with the jetting steam caused inlet 4b of first injector 4 and the jetting steam caused inlet 5b of second injector 5 through pipeline, wherein is provided with second control valve 11 between the connecting line of the evaporimeter 2 and second injector 5.The outlet 4c of first injector 4 is connected condenser 3 with the outlet 5c of second injector 5 through pipeline, and condensation of refrigerant becomes liquid that heat is supplied with the user in condenser 3, and condensed refrigerant liquid is stored in the reservoir 6, thereby accomplishes a circulation.It is working media that this injecting type source pump adopts R134a cold-producing medium, R141b cold-producing medium or R236fa cold-producing medium.
Above-mentioned source pump is when operation, and by the liquid refrigerant that reservoir 6 is supplied with, the one tunnel in expansion valve 8 entering evaporimeters 2, when becoming the refrigerant vapour of low pressure, and a large amount of heats in the absorption among the warm fluid b; Another road receives boiler that the heating of high temperature fluid a is provided in generator 1, becomes the refrigerant vapour of high pressure.When the refrigerant vapour of high pressure gets into first injector 4 and second injector 5; The refrigerant vapour of injection low pressure mixes in first injector 4 and second injector 5 in the formation suppresses refrigerant vapour; The middle compacting refrigerant vapour that carries a large amount of heats is in condenser 3 during condensation; Release heat produces high-temperature water e and incorporates outside network into, like heating system.The compacting refrigerant vapour is liquefied as liquid refrigerant and gets into reservoir 6 simultaneously, recycles.
Claims (2)
1. jet heat pump unit that adopts the thistle board fin heat exchanger; It mainly comprises a condenser (3), reservoir (6), expansion valve (8), evaporimeter (2) and liquid pump (7); It also comprises a generator (1) and injector; The outlet of reservoir (6) connects expansion valve (8) and liquid pump (7) respectively through control valve (9), and the outlet of liquid pump (7) is connected to the import of injector through generator (1), and the outlet of expansion valve (8) is connected to the ejecting port of injector through evaporimeter (2); The outlet of injector is connected to reservoir (6) through condenser (3), and the PLC centralized Control is adopted in electrical control; It is characterized in that: said injector adopts first injector (4) and second injector (5) to be connected in parallel; Said generator (1) is connected to the working steam inlet (4a) of first injector (4) and the working steam inlet (5a) that warp first control valve (10) is connected to second injector (5); Evaporimeter (2) is connected to the jetting steam caused inlet (4b) of first injector (4) and the jetting steam caused inlet (5b) that warp second control valve (11) is connected to second injector (5), and the outlet (4c) of first injector (4) and the outlet (5c) of second injector (5) are connected to condenser (3); Said generator (1) and evaporimeter (2) adopt the thistle board fin heat exchanger, and said condenser (3) adopts efficient plate type heat exchanger; Said source pump adopts environmental protection refrigerant as working media.
2. the jet heat pump unit of employing novel light plate-fin heat exchanger according to claim 1 is characterized in that: said environmental protection refrigerant is selected from R134a cold-producing medium, R141b cold-producing medium or R236fa cold-producing medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102764020A CN102435014A (en) | 2011-09-16 | 2011-09-16 | Jet heat pump unit using light plate-fin heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102764020A CN102435014A (en) | 2011-09-16 | 2011-09-16 | Jet heat pump unit using light plate-fin heat exchanger |
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| CN102435014A true CN102435014A (en) | 2012-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102764020A Pending CN102435014A (en) | 2011-09-16 | 2011-09-16 | Jet heat pump unit using light plate-fin heat exchanger |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280524A (en) * | 2021-05-31 | 2021-08-20 | 哈尔滨工业大学 | Large temperature difference heat exchange system provided with multiple ejectors |
| CN113280523A (en) * | 2021-05-31 | 2021-08-20 | 哈尔滨工业大学 | Injection type heat pump circulating device with supercooling and preheating functions |
| CN113819678A (en) * | 2021-10-22 | 2021-12-21 | 安徽普泛能源技术有限公司 | Multi-heat-source generator unit with ejector and absorption type refrigerating system thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101387457A (en) * | 2008-10-27 | 2009-03-18 | 中原工学院 | Multi-injector parallel connection type solar injection cooling device |
| CN101832680A (en) * | 2010-04-27 | 2010-09-15 | 大连理工大学 | Two-stage steam jet refrigeration system |
| CN102155815A (en) * | 2011-03-30 | 2011-08-17 | 浙江大学 | Steam jet refrigeration system based on double-fluid |
| CN202254493U (en) * | 2011-09-19 | 2012-05-30 | 中能东讯新能源科技(大连)有限公司 | Jet heat pump set adopting light-weight plate-fin heat exchanger |
-
2011
- 2011-09-16 CN CN2011102764020A patent/CN102435014A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101387457A (en) * | 2008-10-27 | 2009-03-18 | 中原工学院 | Multi-injector parallel connection type solar injection cooling device |
| CN101832680A (en) * | 2010-04-27 | 2010-09-15 | 大连理工大学 | Two-stage steam jet refrigeration system |
| CN102155815A (en) * | 2011-03-30 | 2011-08-17 | 浙江大学 | Steam jet refrigeration system based on double-fluid |
| CN202254493U (en) * | 2011-09-19 | 2012-05-30 | 中能东讯新能源科技(大连)有限公司 | Jet heat pump set adopting light-weight plate-fin heat exchanger |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280524A (en) * | 2021-05-31 | 2021-08-20 | 哈尔滨工业大学 | Large temperature difference heat exchange system provided with multiple ejectors |
| CN113280523A (en) * | 2021-05-31 | 2021-08-20 | 哈尔滨工业大学 | Injection type heat pump circulating device with supercooling and preheating functions |
| CN113280524B (en) * | 2021-05-31 | 2022-06-10 | 哈尔滨工业大学 | Large temperature difference heat exchange system provided with multiple ejectors |
| CN113819678A (en) * | 2021-10-22 | 2021-12-21 | 安徽普泛能源技术有限公司 | Multi-heat-source generator unit with ejector and absorption type refrigerating system thereof |
| CN113819678B (en) * | 2021-10-22 | 2022-11-22 | 安徽普泛能源技术有限公司 | Multi-heat-source generator unit with ejector and absorption type refrigerating system thereof |
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Application publication date: 20120502 |