CN110173356A - A kind of gas turbine inlet gas compressor group cooling based on refrigerant - Google Patents
A kind of gas turbine inlet gas compressor group cooling based on refrigerant Download PDFInfo
- Publication number
- CN110173356A CN110173356A CN201910498757.0A CN201910498757A CN110173356A CN 110173356 A CN110173356 A CN 110173356A CN 201910498757 A CN201910498757 A CN 201910498757A CN 110173356 A CN110173356 A CN 110173356A
- Authority
- CN
- China
- Prior art keywords
- gas
- heat
- refrigerant
- compressor
- air accumulator
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
- F02C7/14—Cooling of plants of fluids in the plant, e.g. lubricant or fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
- F02C7/16—Cooling of plants characterised by cooling medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
Abstract
The invention discloses a kind of gas turbine inlet gas compressor groups cooling based on refrigerant, by the way that heat pump unit is arranged, and the evaporator of heat pump unit is placed in the air accumulator of combustion gas compressor group, it is used to recycle the heat of high-temperature high-pressure fuel gas in evaporator full of refrigerant, and condenser outside quantity of heat given up in the form of hot water is transferred heat to the compressor of heat pump unit, this mode not only can accurately control the temperature of gas-turbine combustion chamber entrance combustion gas by being installed on the thermostat valve calmed the anger between tank and heat pump unit compressor, and utilize the high-performance of heat pump unit, by the heat discharged in combustion gas compression process discharging at double, utilization rate of waste heat dramatically increases.
Description
Technical field
The present invention relates to gas compressor fields.
Background technique
Development at full speed has been obtained in the fields such as aviation, peculiar to vessel, power plant as efficient, energy saving, low pollution gas turbine.
Gas turbine needs to continue during the work time input high-pressure gas, and (admission pressure of such as certain model gas turbine combustion gas is
1MPa), and its admission pressure requirement (such as certain project is often not achieved in gas inlet pressure that gas turbine location can be provided
Municipal administration gaseous-pressure in ground is 0.3MPa), therefore, it is necessary to install combustion gas among municipal gas pipeline and gas turbine fuel gas inlet
Compressor set is to meet requirement of the gas turbine to gaseous-pressure.The working principle of conventional gas compressor set is that combustion gas passed through
Filter enters compressor host after filtering out dust and impurities, mixes in compression process with the cutting oil of penetrating, through compressing
Mixed gas afterwards is discharged into combustion gas and the high temperature grease that gs-oil separator isolates design.It is cold that high temperature grease is subsequently sent to oil
But device, by fan coolling return using in system enter subsequent cycle.In the above process, combustion gas and lubricating oil are compressed
The heat generated in journey finally scatters and disappears in air in vain, not only not energy-efficient, and increases thermal pollution.
Application No. is propose in 201820283298.5 patent " a kind of air compressor residual-heat utilization system " to pass through setting
The heat that heat exchanger mode recycling high temperature grease is taken out of, hot water obtained are used for bathing and heating.Application No. is
In a kind of 201621272307.8 patent " water-cooled air compressor afterheat utilizing system " simultaneously using cooling tower cooler high temperature air
Recovery waste heat.It is adopted in application No. is 201621226540.2 patent " a kind of centrifugal air compressor waste heat recycling system "
Heat recovery is realized with setting air-water heat exchanger and Absorption Refrigerator.Compressor set waste heat can be achieved in above scheme
It utilizes, but active regulation performance is poor, and the heat discharged in compression process is crossed merely with partially recycled combustion gas, utilization rate of waste heat is low.
Summary of the invention
In view of the above-mentioned problems of the prior art, the object of the present invention is to provide a kind of combustion gas cooling based on refrigerant
Expander inlet gas compressor group, utilization rate of waste heat dramatically increase.
Present invention provide the technical scheme that
A kind of gas turbine inlet gas compressor group cooling based on refrigerant, including fore filter, intake valve, electricity
Motivation, shaft coupling, compression chamber, air accumulator, coil pipe, filter, gas turbine, thermostat valve, compressor, throttle valve, condenser and
The outlet of water tank, fore filter is connect by intake valve with compression chamber, and motor is connect by shaft coupling with compression chamber, is compressed
The outlet of chamber is connected by the fuel gas inlet of pipeline and air accumulator, coil pipe built in air accumulator, the gas outlet of air accumulator and filtering
Device is connected, and is connected after filtering with gas turbine, the refrigerant inlet of air accumulator is connected with throttle valve, the refrigerant of air accumulator
Outlet is connected with thermostat valve, and throttle valve is connect by pipeline with condenser, and thermostat valve is connect by pipeline with compressor, compressor
Condenser is connected, the water inlet of condenser is connect with cold water, and the water outlet of condenser is connect with water tank, and water tank connects with hot water again
It connects；
The course of work of gas compressor group is as follows:
(1) combustion gas compression process: intake valve is opened when work, is passed through by the low-pressure fuel gas that municipal fuel gas transmission comes preposition
Filter connects electric power at the same time, passes through shaft coupling in compression chamber for low-temp low-pressure gas pressure after starting motor rotation
It is discharged into air accumulator after shortening high-temperature high-pressure fuel gas into；
(2) combustion gas cooling and waste heat removal process: heat pump unit connects electric power and starts to work, and refrigerant working medium is in coil pipe
Draw heat is from high-temperature fuel gas with evaporation heat transfer working medium, and working substance steam temperature and pressure after compressor compresses rises, high temperature
When steam is condensed into liquid by condenser, the heat released, condensed working medium is returned in coil pipe by throttle valve, so
It is evaporated, loops back and forth like this again afterwards, thermostat valve adjusts valve opening according to the air outlet temperature of air accumulator, so as to adjust refrigeration
The circulation process of agent achievees the purpose that temperature accurately controls；
(3) hot water circuit process: while high temperature refrigerant steam is condensed into liquid by condenser, user side cold water is flowed into
Condenser absorbs the heat of high temperature refrigerant steam condensing release, and hot water is made, is stored in water tank, and according to user side
Hot water is confessed outward with heat demand.
The gas turbine includes compressor, combustion chamber, turbine and generator.
The compression chamber, air accumulator and its connecting pipe are all made of heat preserving and insulating material package.
The beneficial effects of the present invention are:
(1) lubricating pipe, oil are reduced compared with conventional gas compressor set using the cooling high-temperature fuel gas of refrigerant
The devices such as gas separating device, oil pump, lube oil cooler, structure is more compact, and cost is lower；
(2) cooling high-temperature fuel gas is forced using refrigerant, reservoir outlet fuel gas temperature can be substantially less than conventional gas pressure
Contracting machine set outlet fuel gas temperature, the heat of recoverable is higher, and for gas turbine, and gas inlet temperature reduces,
Then density of the induced air increases, and air-mass flow increases, then the acting ability of gas turbine increases, and generating efficiency can also be mentioned
It rises.
(3) high-temperature fuel gas waste heat is recycled using heat pump, it can be achieved that high-temperature fuel gas heat compared with conventional gas compressor set
Whole recycling, and for heat pump unit, the waste heat quality of high-temperature fuel gas is high, and the COP of heat pump main frame can also increase therewith,
Heating load dramatically increases, and the waste heat recycling benefit of high-temperature fuel gas is more significant.
(4) heat pump outside quantity of heat given up in the form of high-temperature-hot-water, both may be used as domestic hot-water, be also used as winter factory
Area's heating hot water, to reduce the operation cost of enterprise.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
It is described below for disclosing the present invention so that those skilled in the art can be realized the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It defines in the following description
Basic principle of the invention can be applied to other embodiments, deformation scheme, improvement project, equivalent program and do not carry on the back
Other technologies scheme from the spirit and scope of the present invention.
Such as Fig. 1, a kind of gas turbine inlet gas compressor group cooling based on refrigerant, including fore filter 2, into
Air valve 3, motor 5, shaft coupling 6, compression chamber 7, air accumulator 8, coil pipe 9, filter 10, gas turbine 12, thermostat valve 13, compression
The outlet of machine 14, throttle valve 15, condenser 16 and water tank 17, fore filter 2 is connect by intake valve 3 with compression chamber 7, low pressure
Combustion gas 1 need to remove dust and other impurities by fore filter 2, the filter of fore filter 2 before entering compression chamber 7
Core can be silk screen, polyester fiber, be also possible to glass fibre, synthesis stationery etc..
Motor 5 is connect by shaft coupling 6 with compression chamber 7, and the outlet of compression chamber 7 passes through the combustion gas of pipeline and air accumulator 8
Import connection, coil pipe 9 built in air accumulator 8, coil pipe 9 is interior to be full of refrigerant, and the gas outlet of air accumulator 8 is connected with filter 10,
It is connected after filtering with gas turbine 12, the refrigerant inlet of air accumulator 8 is connected with throttle valve 15, the refrigerant of air accumulator 8
Outlet is connected with thermostat valve 13, and throttle valve 15 is connect by pipeline with condenser 16, and thermostat valve 13 passes through pipeline and compressor 14
Connection, compressor 14 connect condenser 16, and the water inlet of condenser 16 is connect with cold water 18, the water outlet and water tank of condenser 16
17 connections, water tank 17 are connect with hot water 19 again.
The course of work of gas compressor group is as follows:
(1) combustion gas compression process: intake valve 3 is opened when work, before the low-pressure fuel gas 1 to be come by municipal fuel gas transmission passes through
Filter 2 is set, at the same time, connects electric power 4, starting motor 5 is low by low temperature in compression chamber 7 by shaft coupling 6 after rotating
Compression ignition air pressure is discharged into air accumulator 8 after shortening high-temperature high-pressure fuel gas into；
(2) combustion gas cooling and waste heat removal process: heat pump unit connects electric power and starts to work, and refrigerant working medium is in coil pipe 9
With evaporation heat transfer working medium, working substance steam temperature and pressure after the compression of compressor 14 rises the interior draw heat from high-temperature fuel gas,
When high-temperature vapour is condensed into liquid by condenser 16, the heat released, condensed working medium is returned to by throttle valve 15
It in coil pipe 9, is then evaporated, loops back and forth like this again, thermostat valve 13 adjusts valve according to the air outlet temperature of air accumulator 8 and opens
Degree, so as to adjust the circulation process of refrigerant, achievees the purpose that temperature accurately controls；
(3) hot water circuit process: while high temperature refrigerant steam is condensed into liquid by condenser 16, user side cold water 18
Condenser 16 is flowed into, the heat of high temperature refrigerant steam condensing release is absorbed, hot water is made, is stored in water tank 17, and according to
User side confesses hot water 19 with heat demand outward.
Gas turbine 12 includes compressor 12-1, combustion chamber 12-2, turbine 12-3 and generator 12-4.The combustion of air accumulator 8
The combustion chamber 12-2 of gas turbine 12 is sent into the combustion gas that gas exports out after the filtering of filter 10.Filter 10 is generally Y
Type filter.
For the loss for avoiding heat in compression and transmission process, compression chamber 7, air accumulator 8 and its connecting pipe are all made of poly-
The heat preserving and insulating materials such as urethane foam, styrofoam, phenol formaldehyde foam package.
Refrigerant in coil pipe 9 should be environment friendly refrigerating fluid, including but not limited to R134a, R40aA, R407C etc..
The present invention can not only recycle the heat discharged in combustion gas compression process to greatest extent, and structure is more stepped up
It gathers, cost is lower, and the waste heat recyclability of heat pump unit is more preferable, it helps the generating efficiency of gas turbine is promoted, system
Whole energy utilization rate is significantly improved.
Claims (3)
1. a kind of gas turbine inlet gas compressor group cooling based on refrigerant, which is characterized in that including fore filter
(2), intake valve (3), motor (5), shaft coupling (6), compression chamber (7), air accumulator (8), coil pipe (9), filter (10), combustion gas
Turbine (12), thermostat valve (13), compressor (14), throttle valve (15), condenser (16) and water tank (17), fore filter (2)
Outlet connect with compression chamber (7) by intake valve (3), motor (5) passes through shaft coupling (6) and connect with compression chamber (7), compression
The outlet of chamber (7) is connect by pipeline with the fuel gas inlet of air accumulator (8), coil pipe (9) built in air accumulator (8), air accumulator (8)
Gas outlet is connected with filter (10), is connected after filtering with gas turbine (12), the refrigerant inlet of air accumulator (8) with
Throttle valve (15) is connected, and the refrigerant outlet of air accumulator (8) is connected with thermostat valve (13), and throttle valve (15) passes through pipeline and condensation
Device (16) connection, thermostat valve (13) are connect by pipeline with compressor (14), and compressor (14) connects condenser (16), condenser
(16) water inlet is connect with cold water (18), and the water outlet of condenser (16) is connect with water tank (17), water tank (17) again with hot water
(19) it connects；
The course of work of gas compressor group is as follows:
1) combustion gas compression process: intake valve (3) is opened when work, before the low-pressure fuel gas (1) to be come by municipal fuel gas transmission passes through
Filter (2) are set, at the same time, are connected electric power (4), by shaft coupling (6) in compression chamber (7) after starting motor (5) rotation
Interior low-temp low-pressure combustion gas is compressed into after high-temperature high-pressure fuel gas is discharged into air accumulator (8)；
2) combustion gas is cooling and waste heat removal process: heat pump unit connects electric power and starts to work, refrigerant working medium in coil pipe (9) from
With evaporation heat transfer working medium, working substance steam temperature and pressure after compressor (14) are compressed rises draw heat, high in high-temperature fuel gas
When warm steam is condensed into liquid by condenser (16), the heat released, condensed working medium is returned by throttle valve (15)
It in coil pipe (9), is then evaporated, loops back and forth like this again, thermostat valve (13) is adjusted according to the air outlet temperature of air accumulator (8)
Valve opening achievees the purpose that temperature accurately controls so as to adjust the circulation process of refrigerant；
3) hot water circuit process: while high temperature refrigerant steam is condensed into liquid by condenser (16), user side cold water (18)
It flows into condenser (16), absorbs the heat of high temperature refrigerant steam condensing release, hot water is made, is stored in water tank (17), and
Hot water (19) are confessed outward with heat demand according to user side.
2. a kind of gas turbine inlet gas compressor group cooling based on refrigerant according to claim 1, feature
It is, the gas turbine (12) includes compressor (12-1), combustion chamber (12-2), turbine (12-3) and generator (12-4).
3. a kind of gas turbine inlet gas compressor group cooling based on refrigerant according to claim 1, feature
It is, the compression chamber (7), air accumulator (8) and its connecting pipe are all made of heat preserving and insulating material package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910498757.0A CN110173356A (en) | 2019-06-10 | 2019-06-10 | A kind of gas turbine inlet gas compressor group cooling based on refrigerant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910498757.0A CN110173356A (en) | 2019-06-10 | 2019-06-10 | A kind of gas turbine inlet gas compressor group cooling based on refrigerant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110173356A true CN110173356A (en) | 2019-08-27 |
Family
ID=67698057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910498757.0A Pending CN110173356A (en) | 2019-06-10 | 2019-06-10 | A kind of gas turbine inlet gas compressor group cooling based on refrigerant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110173356A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0278736A (en) * | 1988-09-16 | 1990-03-19 | Mitsubishi Heavy Ind Ltd | Gas turbine equipment |
| JPH03182638A (en) * | 1989-12-11 | 1991-08-08 | Ebara Corp | Gas turbine driven refrigerator |
| JPH10196316A (en) * | 1997-01-06 | 1998-07-28 | Hitachi Ltd | Combined power generating plant and closed air cooling gas turbine system |
| JP2002155756A (en) * | 2000-11-17 | 2002-05-31 | Hitachi Zosen Corp | Gas turbine generating set |
| US6446465B1 (en) * | 1997-12-11 | 2002-09-10 | Bhp Petroleum Pty, Ltd. | Liquefaction process and apparatus |
| JP2003161165A (en) * | 1997-05-13 | 2003-06-06 | Yoshihide Nakamura | Gas turbine system and method of cooling intake air in summer season |
| US20100058801A1 (en) * | 2008-09-09 | 2010-03-11 | Conocophillips Company | System for enhanced gas turbine performance in a liquefied natural gas facility |
| EP2330280A1 (en) * | 2009-12-01 | 2011-06-08 | Shell Internationale Research Maatschappij B.V. | Method of operating a gas turbine; a gas turbine system; and a method and system for cooling a hydrocarbon stream |
| EP2426452A1 (en) * | 2010-09-06 | 2012-03-07 | Shell Internationale Research Maatschappij B.V. | Method and apparatus for cooling a gaseous hydrocarbon stream |
| WO2013124899A1 (en) * | 2012-02-24 | 2013-08-29 | 株式会社 日立製作所 | Solar heat assisted gas turbine system |
| CN104712433A (en) * | 2015-01-14 | 2015-06-17 | 同济大学 | Inlet-air cooling system used for mini-sized gas turbine by driving flue-gas waste-heat injection for refrigeration |
| CN205155976U (en) * | 2015-11-30 | 2016-04-13 | 中节能（常州）城市节能研究院有限公司 | Novel waste incinerator's preheated air system |
| CN209959359U (en) * | 2019-06-10 | 2020-01-17 | 中节能城市节能研究院有限公司 | Gas turbine inlet gas compressor unit based on refrigerant cooling |
-
2019
- 2019-06-10 CN CN201910498757.0A patent/CN110173356A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0278736A (en) * | 1988-09-16 | 1990-03-19 | Mitsubishi Heavy Ind Ltd | Gas turbine equipment |
| JPH03182638A (en) * | 1989-12-11 | 1991-08-08 | Ebara Corp | Gas turbine driven refrigerator |
| JPH10196316A (en) * | 1997-01-06 | 1998-07-28 | Hitachi Ltd | Combined power generating plant and closed air cooling gas turbine system |
| JP2003161165A (en) * | 1997-05-13 | 2003-06-06 | Yoshihide Nakamura | Gas turbine system and method of cooling intake air in summer season |
| US6446465B1 (en) * | 1997-12-11 | 2002-09-10 | Bhp Petroleum Pty, Ltd. | Liquefaction process and apparatus |
| JP2002155756A (en) * | 2000-11-17 | 2002-05-31 | Hitachi Zosen Corp | Gas turbine generating set |
| US20100058801A1 (en) * | 2008-09-09 | 2010-03-11 | Conocophillips Company | System for enhanced gas turbine performance in a liquefied natural gas facility |
| EP2330280A1 (en) * | 2009-12-01 | 2011-06-08 | Shell Internationale Research Maatschappij B.V. | Method of operating a gas turbine; a gas turbine system; and a method and system for cooling a hydrocarbon stream |
| EP2426452A1 (en) * | 2010-09-06 | 2012-03-07 | Shell Internationale Research Maatschappij B.V. | Method and apparatus for cooling a gaseous hydrocarbon stream |
| WO2013124899A1 (en) * | 2012-02-24 | 2013-08-29 | 株式会社 日立製作所 | Solar heat assisted gas turbine system |
| CN104712433A (en) * | 2015-01-14 | 2015-06-17 | 同济大学 | Inlet-air cooling system used for mini-sized gas turbine by driving flue-gas waste-heat injection for refrigeration |
| CN205155976U (en) * | 2015-11-30 | 2016-04-13 | 中节能（常州）城市节能研究院有限公司 | Novel waste incinerator's preheated air system |
| CN209959359U (en) * | 2019-06-10 | 2020-01-17 | 中节能城市节能研究院有限公司 | Gas turbine inlet gas compressor unit based on refrigerant cooling |
Non-Patent Citations (3)
| Title |
|---|
| JIAN DENG等: "Exergy cost analysis of a micro-trigeneration system based on the structural theory of thermoeconomics", ENERGY, pages 1417 - 1426 * |
| 徐铁军;张伟伟;吴中林;: "输气管道压气站余热的利用", 油气储运, no. 12, pages 13 - 16 * |
| 杜玉吉;李龙;纪执琴;梁江涛;: "基于微燃机的冷热电供能系统经济性分析", 暖通空调, no. 10, pages 117 - 122 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106895603B (en) | Compression/absorption enclosed parallel connection composite fuel gas heat pump system operation method | |
| CN201819477U (en) | Direct-current frequency-conversional multi-connected multifunction air-conditioner | |
| CN102878603A (en) | Gas-steam circulation combined double-stage coupling heat pump heat supply device | |
| CN101644506A (en) | Compression-absorption type refrigerating machine | |
| CN107178934A (en) | A kind of residual heat of air compressor advanced recycling system | |
| CN108224826A (en) | Screw type water source gas-burning machine heat pump water chiller-heater unit and operation method | |
| CN102226596A (en) | Engine-driven cascade heat pump device | |
| CN110173913A (en) | A kind of steam compressed high temperature heat pump unit of very large super cooling degree | |
| CN201429259Y (en) | Evaporative cooling water unit with function of heat recovery | |
| CN110567026B (en) | Thermoelectric decoupling system of heat storage tank coupling absorption heat pump and operation method | |
| CN201615649U (en) | Oil gas recycling device utilizing steam-ejection refrigeration | |
| CN108954821A (en) | A kind of open type heat pump hot water preparation method of air circulation | |
| CN105650938B (en) | A kind of absorption-type refrigerating method and device of full electric power reuse discharge heat | |
| CN208443066U (en) | Screw type water source gas-burning machine heat pump water chiller-heater unit | |
| CN209959359U (en) | Gas turbine inlet gas compressor unit based on refrigerant cooling | |
| CN204574584U (en) | A kind of novel energy-saving cooling by wind with pressure maintenance device | |
| CN101586482A (en) | Low-temperature type engine and heat regenerating method thereof | |
| CN110173356A (en) | A kind of gas turbine inlet gas compressor group cooling based on refrigerant | |
| CN105485960B (en) | A kind of dual vapor compressibility absorption-type refrigerating method and device | |
| CN201740313U (en) | Multifunctional water source heat pump | |
| CN201885488U (en) | Screw type cooling system and control method thereof | |
| CN204574594U (en) | Heat pump main frame total heat recovery system | |
| CN100383473C (en) | Solar-auxiliary-driven cold-heat combined generator | |
| CN209857428U (en) | Cold and hot double-effect split-flow type energy recovery system | |
| CN2394139Y (en) | Solar and geothermal apparatus for supplying cold and hot water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |