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CN105004047B - High-temperature water heater is produced in the recovery of heat pump complementary energy - Google Patents

High-temperature water heater is produced in the recovery of heat pump complementary energy Download PDF

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Publication number
CN105004047B
CN105004047B CN201510420676.0A CN201510420676A CN105004047B CN 105004047 B CN105004047 B CN 105004047B CN 201510420676 A CN201510420676 A CN 201510420676A CN 105004047 B CN105004047 B CN 105004047B
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heat pump
unit
energy consumption
zero
compressor
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CN105004047A (en
Inventor
沈岑
沈新荣
郁辉球
张华杰
杨笑梅
任世琛
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Hangzhou Zheda Technology Co Ltd
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Hangzhou Zheda Technology Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency

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  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The present invention relates to heat pump field, it is desirable to provide high-temperature water heater is produced in the recovery of heat pump complementary energy.High-temperature water heater is produced in heat pump complementary energy recovery includes heat pump and zero energy consumption one unit, zero energy consumption one unit can extract the potential energy that the working medium in heat pump is consumed in decompressional expansion, for utilizing the electric heater unit of outside to obtain high-temperature-hot-water, the energy consumption one unit of A types zero or the energy consumption one unit of Type B zero can be used to realize;The energy consumption one unit of A types zero includes the warm condenser and power set being connected with each other, and the energy consumption one unit of A types zero is arranged between the exhaust outlet of compressor of heat pump and condenser;The energy consumption one unit of Type B zero includes the pump that surges, and the pump that surges is arranged on the condensator outlet of heat pump.The present invention, with reference to zero energy consumption one unit, realizes on the basis of the energy consumption of heat pump is not increased on the basis of original heat pump, improves the grade of hot water.

Description

High-temperature water heater is produced in the recovery of heat pump complementary energy
Technical field
The present invention is to produce high-temperature water heater on heat pump field, more particularly to heat pump complementary energy recovery.
Background technology
Heat pump is absorbed heat by working medium from environment, mainly there is water resource heat pump, air-cooled heat pump etc., by heat-carrying agent (example Such as water) heat release realizes the heating of heat-carrying agent.Heat pump according to the temperature of the heat-carrying agent obtained after heating be divided into normal temperature heat pump and High temperature heat pump, heat-carrying media temperature made from high temperature heat pump are higher than normal temperature heat pump.
In the market is common in the majority with normal temperature heat pump, as shown in figure 1, common two-stage compression normal temperature heat pump, including evaporation Device 101, low-pressure stage compressor 102, high pressure stage compressor 103, condenser 104, No.1 expansion valve 105, the He of intercooler 106 No. two expansion valves 107.
Its internal heating circulation process:The working medium that flow is M1 first is from low pressure, low temperature liquid state 10 through evaporator After 101 isobaric heat absorptions, the state 11 of uniform pressure is reached, after the air intake duct overheat before low-pressure stage compressor 102, reaches low Press through the steam condition 1 of heat.Reach state 2 after the compression of low-pressure stage compressor 102.It is vented out from low-pressure stage compressor 102 The steam and flow of mouth are that M2 mixes from the steam after the flash distillation of intercooler 106, i.e. state 2, working medium and shape that flow is M1 It is M1+M2 that state 8, flow, which are that M2 carries out being mixed to form total flow, reaches steam condition 3.Steam condition 3 enters high pressure stage compressor After 103 compressions, further adherence pressure and temperature reach state 4.State 4 is high-temperature high-pressure overheat steam state, through hiigh pressure stage After the blast pipe of compressor 103, state 5 is reached, into condenser 104, after equipressure condenses, Temperature of Working reduces, and reaches phase With the state 6 under pressure, saturated liquid is formed.The working medium come out from state 6, flow are M2 working medium through No.1 expansion valve 105 Decompression cooling, the gas-liquid saturated mode under formation and the uniform pressure of state 2, after intercooler 106 absorbs heat, flash distillation reaches State 8.And the working medium that flow is M1 reaches subcooled liquid state 9 from the further isobaric heat release of state 6.Working medium is from state 9 through two Number expansion valve 107 is cooled to state 10.
But after two-stage compression, also it is only capable of the hot water of 45~60 DEG C or so of generation.And high temperature heat pump is then to utilize to divide The mode of level condensation is heated to the temperature higher than 60 DEG C using the latent heat and sensible heat of working medium release simultaneously.Wherein, water and working medium It is that adverse current is run in condensation process, thus water is heated to maximum temperature in the condenser locations close to exhaust outlet of compressor. In Eron Jacobson, Brown and Caldwell article Heat extraction from plant effluent: " mention the heat pump maximum water temperature sold on the market in the U.S. in pumped up heat pumps " and reached 82 DEG C.Therefore To reach high leaving water temperature, it is necessary to two level, even three stage compression, increase the power of compressor, sacrifice the efficiency of heat pump.
Therefore, existing heat pump techniques are on the premise of efficiency is ensured, it is difficult to water temperature is further lifted to more than 100 DEG C, Even produce steam.
The content of the invention
It is a primary object of the present invention to overcome deficiency of the prior art, there is provided one kind can ensure existing heat pump On the premise of efficiency, device of the temperature for more than 100 DEG C hot water is produced.In order to solve the above technical problems, the solution party of the present invention Case is:
The recovery of heat pump complementary energy is provided and produces high-temperature water heater, including heat pump and zero energy consumption one unit, the heat Pump includes evaporator, compressor, condenser and restricting element, and the working medium that the zero energy consumption one unit can be extracted in heat pump is dropping The potential energy consumed during compression swelling, for utilizing the electric heater unit of outside to obtain high-temperature-hot-water;
The zero energy consumption all-in-one component is two kinds, respectively the energy consumption one unit of A types zero, the energy consumption one unit of Type B zero; Zero energy consumption one unit can use the energy consumption one unit of A types zero or the energy consumption one unit of Type B zero to realize;
The energy consumption one unit of A types zero includes the warm condenser and power set being connected with each other, the energy consumption of A types zero one Unit is arranged between the exhaust outlet of compressor of heat pump and condenser;The warm condenser can will after compressor compresses shape Into high temperature and high pressure steam working medium, flow through warm condenser, sensible heat is released to the hot water produced needed for opposite side;The power dress The potential energy acting that the working medium in warm condenser after sensible heat can be utilized to discharge is put, and then the electrical power generators outside drive drive Outside electric heater unit is moved, realizes and the hot water produced needed for opposite side is further heated;The power set are using pneumatic Motor or expanding machine;
The energy consumption one unit of Type B zero includes the pump that surges, and the pump that surges is arranged on the condensator outlet of heat pump;Surge pump Can do work the potential energy that the high-pressure sub-cooled liquid working medium after condenser discharges reverse power generation, and then the electricity outside driving adds Thermal, realize and the hot water produced needed for opposite side is further heated.
As a further improvement, the energy consumption one unit of A types zero also includes new compressor, and new compressor is arranged on heat Between the exhaust outlet of compressor of pump and the warm condenser of the energy consumption one unit of A types zero;The new compression function is to through overcompression The high temperature and high pressure steam working medium formed after machine compression, carry out compression again and form high steam working medium at higher temperature, be re-fed into high temperature In condenser, and after generating that the potential energy that working medium in power set discharges can do work, for driving the new compressor operation, Realize working medium increasing temperature and pressure in new compressor.
As a further improvement, the energy consumption one unit of Type B zero also includes new compressor, and new compressor is arranged on heat Between the exhaust outlet of compressor and condenser of pump;The new compression function working medium in pump that will surge discharges potential energy acting and generated electricity Afterwards, for driving the new compressor operation, working medium increasing temperature and pressure in new compressor is realized.
As a further improvement, the compressor of the heat pump is provided with two, the low-pressure stage compression being respectively sequentially connected Machine and high pressure stage compressor;Be additionally provided with intercooler between the condenser and restricting element of heat pump, intercooler also with it is low Arbitrarily downgrade and be connected between compressor, high pressure stage compressor, and be connected respectively with condenser and restricting element;The restricting element uses Expansion valve, expansion valve are provided with two, respectively No.1 expansion valve and No. two expansion valves, and No.1 expansion valve is middle cold for being arranged on But between device and evaporator, No. two expansion valves are used to be arranged between condenser and intercooler.
As a further improvement, the heat pump uses water resource heat pump or air-cooled heat pump.
Compared with prior art, the beneficial effects of the invention are as follows:
1st, the present invention can produce the high-temperature-hot-water that temperature is higher than 100 DEG C, improve the grade of hot water, make the high warm of acquisition The application of water it is wider, be easy to be changed into steam to apply in the industry.
2nd, the present invention is on the basis of original heat pump, and with reference to zero energy consumption one unit, realizing is not increasing heat pump On the basis of energy consumption, the grade of hot water is improved.
Brief description of the drawings
Fig. 1 is the heating circulation figure of existing heat pump.
Fig. 2 is the heating circulation figure of the specific embodiment of the invention 1.
Fig. 3 is the heating circulation figure of the specific embodiment of the invention 2.
Fig. 4 is the heating circulation figure of the specific embodiment of the invention 3.
Fig. 5 is the heating circulation figure of the specific embodiment of the invention 4.
Fig. 6 is the heating circulation figure of the specific embodiment of the invention 5.
Reference in figure is:101 evaporators;102 low-pressure stage compressors;103 high pressure stage compressors;104 condensers; 105 No.1 expansion valves;106 intercoolers;107 No. two expansion valves;108 new compressors;109 warm condensers;110 expansions Machine;111 air motors;112 surge pump.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings:
Unnecessary energy is not consumed on the basis of existing heat pump for current existing heat pump, the present invention as shown in Figure 1 Consumption, to improve the hot water grade produced, and can further produce steam, there is provided relatively more valuable thermal water resource.
5 kinds of following embodiments are respectively that zero energy consumption all-in-one in high-temperature water heater is produced in the recovery of heat pump complementary energy The embodiment of group, does not change former heat pump from evaporator 101 to the state change of working medium between original compressor Process, including the compression process of low-pressure stage compressor 102 and high pressure stage compressor 103.
As shown in Fig. 2 the embodiment 1 of zero energy consumption one unit, is on the basis of former heat pump, increases new compression Machine 108, warm condenser 109 and expanding machine 110.Now, former heat pump heating circulation, the working medium that flow is M1'+M2' is from state 4 Through new compressor 108 second compression again, reach more high pressure steam condition 12 at higher temperature, it is isobaric to pass through warm condenser 109 afterwards Condensation, is still superheated steam state after rejecting heat to the hot water that need to be heated;Done work afterwards into expanding machine 110, reduce pressure Enter the isobaric condensation of condenser 104 after power and temperature to saturated liquid state 6', afterwards by former circulation, flow is M2' working medium It is depressured and cools through No.1 expansion valve 105, the gas-liquid saturated mode under formation and the uniform pressure of state 2, is absorbed in intercooler 106 After heat, flash distillation reaches state 8.And the working medium that flow is M1' reaches subcooled liquid state from state 6' further isobaric heat releases 9'.Working medium is cooled to state 10' from state 9' through No. two expansion valves 107.
The potential energy that expanding machine 110 is discharged by extracting the working medium of superheated steam state, for driving new compressor 108, because This whole zero energy consumption one unit can't increase the consumption of power newly.
As shown in figure 3, the embodiment 2 of zero energy consumption one unit, is on the basis of former heat pump, increases new compression Machine 108, warm condenser 109 and air motor 111.Now, former heat pump heating circulation, the working medium that flow is M1 "+M2 " is from shape State 4 reaches more high pressure steam condition 12 at higher temperature, passes through warm condenser 109 etc. afterwards through new compressor 108 second compression again Pressure condensation, is still superheated steam state after rejecting heat to the hot water that need to be heated;Discharged afterwards into air motor 111 Potential energy, enter the isobaric condensation of condenser 104 to saturated liquid state 6 after reducing pressure and temperature ", afterwards by former circulation, flow For M2 " working medium be depressured and cool through No.1 expansion valve 105, formed and the uniform pressure of state 2 under gas-liquid saturated mode, middle cold But after device 106 absorbs heat, flash distillation reaches state 8.And flow is M1 " working medium from state 6 " further isobaric heat releases, reach Subcooled liquid state 9 ".Working medium through No. two expansion valves 107 from state 9 " being cooled to state 10 ".
The potential energy that air motor 111 is discharged by extracting the working medium of superheated steam state, for driving small generator to send out Electricity, caused electricity drives new compressor 108, therefore whole zero energy consumption one unit can't increase the consumption of power newly.
As shown in figure 4, the embodiment 3 of zero energy consumption one unit, otherwise varied with embodiment 2, in original heat On the basis of pump, increase warm condenser 109 and air motor 111.Now, former heat pump heating circulation, flow are M1 " '+M2 " ' Working medium after the exhaust condition 4 of high pressure stage compressor reaches the inlet condition 16 of warm condenser 109, after equipressure condenses, with Superheated steam state 17 discharges potential energy into air motor 111, enters the isobaric condensation of condenser 104 after reducing pressure and temperature To saturated liquid state 6 " ', afterwards by former circulation, the working medium that flow be M2 " ' is depressured through No.1 expansion valve 105 to cool, formed with Gas-liquid saturated mode under the uniform pressure of state 2, after intercooler 106 absorbs heat, flash distillation reaches state 8.And flow is M1 " ' working medium from state 6 " ' further isobaric heat release, reaches subcooled liquid state 9 " '.Working medium is from state 9 " ' through No. two expansions Valve 107 is cooled to state 10 " '.
The potential energy that air motor 111 is discharged by extracting the working medium of superheated steam state, for driving small generator to send out Electricity, the hot water of caused electricity driving electric heater unit heating warm condenser 109 side to demand temperature, and whole zero energy consumption Integral unit can't increase the consumption of power newly.
As shown in figure 5, the embodiment 4 of zero energy consumption one unit, on the basis of original heat pump, increases new compression Machine 108 and the pump 112 that surges.Now, former heat pump heating circulation, the working medium that flow is M1 " "+M2 " " is from state 4 through new compressor 108 second compressions again, reach more high pressure superheated steam state 19 at higher temperature, afterwards into 104 isobaric heat release of condenser to being subcooled Liquid condition 6 " ", enter the pump 112 that surges afterwards and discharge potential energy, after reducing temperature and pressure, be by former circulation, flow afterwards M2 " " working medium is depressured through No.1 expansion valve 105 to cool, the gas-liquid saturated mode under formation and the uniform pressure of state 2, middle cold But after device 106 absorbs heat, flash distillation reaches state 8.And the working medium that flow is M1 " " arrives from state 6 " " further isobaric heat release Up to subcooled liquid state 9 " ".Working medium is cooled to state 10 " " from state 9 " " through No. two expansion valves 107.
Surge the potential energy that pump 112 is discharged by extracting the working medium of subcooled liquid state, is generated electricity by motor reversal, produced Electricity drive new compressor 108, therefore whole zero energy consumption one unit can't increase the consumption of power newly.
As shown in fig. 6, the embodiment 5 of zero energy consumption one unit, on the basis of original heat pump, increases the pump that surges 112.Now, former heat pump heating circulation, after the isobaric condensation of condenser 104, in saturated liquid state 6, arrival is surged before pump 112 State be subcooled liquid state 22, discharge potential energy into the pump 112 that surges, after reducing temperature and pressure, afterwards by former circulation, The working medium that flow is M2 is depressured through No.1 expansion valve 105 to cool, the gas-liquid saturated mode under formation and the uniform pressure of state 2, in Between cooler 106 absorb heat after, flash distillation reach state 8.And flow be M1 working medium from the further isobaric heat release of state 6, arrive Up to subcooled liquid state 9 " " '.Working medium is cooled to state 10 " " ' from state 9 " " ' through No. two expansion valves 107.
Surge the potential energy that pump 112 is discharged by extracting the working medium of subcooled liquid state, is generated electricity by motor reversal, produced Electricity driving electric heater unit heating warm condenser 109 side hot water to demand temperature, and whole zero energy consumption one unit The consumption of power can't be increased newly.
Finally it should be noted that listed above is only specific embodiment of the invention.It is clear that the invention is not restricted to Above example, there can also be many variations.One of ordinary skill in the art can directly lead from present disclosure All deformations for going out or associating, are considered as protection scope of the present invention.

Claims (3)

1. high-temperature water heater is produced in the recovery of heat pump complementary energy, including heat pump and zero energy consumption one unit, the heat pump include Evaporator, compressor, condenser and restricting element, it is characterised in that the zero energy consumption one unit can extract the work in heat pump The potential energy that matter is consumed in decompressional expansion, for driving the electric heater unit of outside to obtain high-temperature-hot-water;
The zero energy consumption all-in-one component is two kinds, respectively the energy consumption one unit of A types zero, the energy consumption one unit of Type B zero;Zero energy Integral unit is consumed to realize using the energy consumption one unit of A types zero or the energy consumption one unit of Type B zero;
The energy consumption one unit of A types zero includes the warm condenser and power set being connected with each other, the energy consumption one unit of A types zero It is arranged between the exhaust outlet of compressor of heat pump and condenser;The warm condenser will can be formed after compressor compresses High temperature and high pressure steam working medium, flows through warm condenser, and sensible heat is released to the hot water produced needed for opposite side;The power set energy The potential energy discharged using the working medium after the sensible heat in warm condenser is done work, and then the electrical power generators driving outside drive is outer The electric heater unit in portion, realize and the hot water produced needed for opposite side is further heated;The power set use air motor Or expanding machine;
The energy consumption one unit of Type B zero includes the pump that surges, and the pump that surges is arranged on the condensator outlet of heat pump;The pump that surges can incite somebody to action The potential energy acting reverse power generation that high-pressure sub-cooled liquid working medium after condenser discharges, and then the electrical heating dress outside driving Put, realize and the hot water produced needed for opposite side is further heated;
The energy consumption one unit of A types zero, the energy consumption one unit of Type B zero are also all respectively arranged with new compressor;
The new compressor of the energy consumption one unit of A types zero is arranged on the exhaust outlet of compressor and A types zero energy consumption one units of heat pump Between warm condenser;The new compression function is carried out again to the high temperature and high pressure steam working medium formed after compressor compresses Second compression forms high steam working medium at higher temperature, is re-fed into warm condenser, and working medium in power set can be discharged After potential energy acting generates electricity, for driving the new compressor operation, working medium increasing temperature and pressure in new compressor is realized;
The new compressor of the energy consumption one unit of Type B zero is arranged between the exhaust outlet of compressor of heat pump and condenser;Surge in pump After working medium discharges potential energy acting generating, for driving the new compressor operation, realize that working medium heats up in new compressor and rise Pressure.
2. high-temperature water heater is produced in heat pump complementary energy recovery according to claim 1, it is characterised in that the heat pump Compressor be provided with two, the low-pressure stage compressor and high pressure stage compressor being respectively sequentially connected;The condenser and section of heat pump Intercooler is additionally provided between fluid element, intercooler is also connected between low-pressure stage compressor, high pressure stage compressor, and It is connected respectively with condenser and restricting element;The restricting element uses expansion valve, and expansion valve is provided with two, and respectively No.1 is swollen Swollen valve and No. two expansion valves, No.1 expansion valve are used to be arranged between intercooler and evaporator, and No. two expansion valves are used to set Put between condenser and intercooler.
3. high-temperature water heater is produced in heat pump complementary energy recovery according to claim 2, it is characterised in that the heat pump Using water resource heat pump or air-cooled heat pump.
CN201510420676.0A 2015-07-16 2015-07-16 High-temperature water heater is produced in the recovery of heat pump complementary energy Active CN105004047B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101617182A (en) * 2007-02-26 2009-12-30 开利公司 Use the economized refrigerant system of the expander of band intermediate pressure port
CN101932890A (en) * 2008-02-01 2010-12-29 大金工业株式会社 Economizer
CN103775238A (en) * 2013-01-25 2014-05-07 摩尔动力(北京)技术股份有限公司 Quasi carnot engine
CN103808010A (en) * 2012-11-15 2014-05-21 珠海格力电器股份有限公司 Quasi-two-stage compression heat pump water heater and control method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004150791A (en) * 2002-10-08 2004-05-27 Matsushita Electric Ind Co Ltd Heat pump device and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101617182A (en) * 2007-02-26 2009-12-30 开利公司 Use the economized refrigerant system of the expander of band intermediate pressure port
CN101932890A (en) * 2008-02-01 2010-12-29 大金工业株式会社 Economizer
CN103808010A (en) * 2012-11-15 2014-05-21 珠海格力电器股份有限公司 Quasi-two-stage compression heat pump water heater and control method thereof
CN103775238A (en) * 2013-01-25 2014-05-07 摩尔动力(北京)技术股份有限公司 Quasi carnot engine

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Denomination of invention: Device for recycling remained energy for making high-temperature hot water of heat pump system

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