CN208443066U - Screw type water source gas-burning machine heat pump water chiller-heater unit - Google Patents
Screw type water source gas-burning machine heat pump water chiller-heater unit Download PDFInfo
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- CN208443066U CN208443066U CN201820381940.3U CN201820381940U CN208443066U CN 208443066 U CN208443066 U CN 208443066U CN 201820381940 U CN201820381940 U CN 201820381940U CN 208443066 U CN208443066 U CN 208443066U
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- 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
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat 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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Abstract
A kind of screw type water source gas-burning machine heat pump water chiller-heater unit, which is characterized in that screw type water source gas-burning machine heat pump water chiller-heater unit is made of dynamical system, engine exhaust heat recovery system, refrigerant system and oil return system.When heating circulation, refrigerant extracts heat by dry evaporator from waste water, and combines the common hot-water supply of gas engine waste heat；Chilled water and domestic hot-water can be supplied simultaneously in refrigeration cycle, the efficiency of energy utilization all with higher under refrigeration and heating mode overcomes traditional water source heat pump units low persistent ailment of energy utilization rate in refrigeration.Beneficial effect is strong applicability, meets the energy policy demand of current low-carbon economy, and social benefit is obvious.
Description
Technical field
Air conditioner cold and hot water and the technical field of domestic hot-water are produced the present invention relates to screw rod type heat pump machine unit, more particularly to
Screw type water source gas-burning machine heat pump water chiller-heater unit of the gas engine as driving force.
Background technique
Currently, gas engine heat pump system obtains in cooling and warming field with the continuous maturation of gas-burning machine heat pump technology
Relatively broad application is arrived.Gas engine heat pump system has the advantage that (1) with natural compared to traditional electric heating pumping system
The clean energy resourcies such as gas, oil gas reduce the use of electric power resource as the unit energy, meet the technical requirements of energy-saving low-carbon；
(2) when unit is run, a large amount of gas engine waste heat can be recycled again, and primary energy utilization ratio greatly improves；(3)
The revolving speed of gas engine is adjustable, therefore gas engine heat pump system part load performance is preferable.
Existing gas engine heat pump system is using gas engine-driven air source heat pump system mostly, and performance is by environment
Temperature is affected, and in low-temperature cold area, heating capacity and efficiency can obviously decay with the reduction of environment temperature, in environment
When temperature is lower than certain value, or even can not start, furthermore finned heat exchanger used by air source heat pump, can only with air into
Row heat exchange can not utilize the low level heat energies such as sanitary wastewater, industrial wastewater.
Existing screw gas engine water cooler is used to supply chilled water to air-conditioning system, and structure type is simple, in the summer
Season power load larger period has certain peak modulation capacity, but due to there was only refrigeration mode, application range is restricted, and nothing
Method recycles gas engine waste heat, and efficiency of energy utilization is lower.
Summary of the invention
Present invention aim to address above-mentioned deficiencies, provide a kind of screw type water source gas-burning machine heat pump water chiller-heater unit.?
The heat in building is released to external source when unit freezes, while the waste heat for recycling cylinder sleeve and flue gas produces domestic hot-water；
In unit heating, the heat extracted from external source is released to indoor environment, while domestic hot-water can also be produced.Water source
Heat pump system is conducive to the stable operation of unit, is remarkably improved non-renewable energy by the waste heat of recycling cylinder sleeve of engine and flue gas
Utilization rate, reduce energy consumption, achieve energy-saving and emission reduction purposes.
Present invention technical solution used for the above purpose is: screw type water source gas-burning machine heat pump water chiller/heater
Group, including dynamical system, engine exhaust heat recovery system, refrigerant system and oil return system.
The dynamical system includes at least gas engine 1, flywheel 2, acceleration type clutch 3 and shaft coupling 4.
The refrigerant system includes at least screw type refrigerating compressor 5, and discharge line valve 6, oil eliminator 7, cut-off stops
Return valve 8, water cooled condenser 9, device for drying and filtering 10, liquid supply electromagnetic valve 11, feed flow ball valve 12, liquid-sighting glass 13, electric expansion valve
14, dry evaporator 15, gas-liquid separator 16, suction filter 17, suction line valve 18, bypass line part 19.
The oil return system include at least oil eliminator 7, middle effect oil strainer 22, oil pump 23, oil pump bypass solenoid valve 24,
Oil cooler 25, efficient oil strainer 26, oil stream amount switch 27, working connection solenoid valve 28, solenoid fuel injection valve 29, view oil mirror 30.
The engine exhaust heat recovery system include at least thermostat 32, gas-water heat exchanger 38, plate heat exchanger 33,
Anti-icing fluid water pump 35 and intercooler 41.
The acceleration type clutch 3 is connect with gas engine 1 using flywheel 2, acceleration type clutch 3 and screw type cold
Compressor 5 is connected using shaft coupling 4, and acceleration type clutch 3 is used to improve the output revolving speed of gas engine 1 and control power passes
Defeated on-off, flywheel 2 and shaft coupling 4 have shock-absorbing function.
One bypass line part 19 is set in screw type water source gas-burning machine heat pump water chiller-heater unit, its one end is connected to
On pipeline between suction filter 17 and suction line valve 18, the other end is connected between oil eliminator 7 and screw down nonreturn valve 8
Pipeline on, be provided with bypass solenoid valve 20 and bypass cutoff valve 21 on the bypass line part.
Heat recovery water into engine exhaust heat recovery system is divided into two-way, wherein all the way, first passing through gas-water heat exchanger
38, using plate heat exchanger 33；Another way passes through intercooler 41.
The screw type water source gas-burning machine heat pump water chiller-heater unit, in heating mode operation, refrigerant is steamed by dry type
Hair device 15 extracts heat from waste water, rejects heat to cooling water by water cooled condenser 9, and combine more than gas engine
The common hot-water supply of heat；In refrigeration mode operation, chilled water and domestic hot-water can be supplied simultaneously, under refrigeration and heating mode
Efficiency of energy utilization all with higher.
The invention has the advantages that screw type water source gas-burning machine heat pump water chiller-heater unit is using natural gas as input energy
Source consumes a small amount of electric power, can be relieved power tense, especially peak times of power consumption summer；Meanwhile the present invention can be recycled and start
Machine cylinder sleeve and fume afterheat improve the primary energy utilization ratio of unit；Finally, the present invention can make full use of industrial wastewater, life
The low-grade heat sources such as waste water reduce energy waste.
In short, screw type water source gas-burning machine heat pump water chiller-heater unit of the invention not only increases conventional screw gas engine
The function of water cooler also is compliant with the energy policy demand of current low-carbon economy, social benefit with stronger applicability
Obviously.
Detailed description of the invention
It is described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is screw type water source gas-burning machine heat pump water chiller-heater unit circulation theory figure of the invention.
Fig. 2 is oil return system schematic diagram in screw type water source gas-burning machine heat pump water chiller-heater unit of the invention.
Fig. 3 is engine exhaust heat recovery system principle in screw type water source gas-burning machine heat pump water chiller-heater unit of the invention
Figure.
Appended drawing reference: 1- gas engine, 2- flywheel, 3- acceleration type clutch, 4- shaft coupling, the compression of 5- screw type cold
Machine, 6- discharge line valve, 7- oil eliminator, 8- screw down nonreturn valve, 9- condenser, 10- device for drying and filtering, 11- liquid supply electromagnetic valve,
12- feed flow ball valve, 13- liquid-sighting glass, 14- electric expansion valve, 15- dry evaporator, 16- gas-liquid separator, the filtering of 17- air-breathing
Device, 18- suction line valve, 19- bypass line part, 20- bypass solenoid valve, 21- bypass cutoff imitate oil strainer in 22-,
23- oil pump, 24 oil pump bypass solenoid valves, 25- oil cooler, the efficient oil strainer of 26-, 27- oil stream amount switch, 28- working connection
Solenoid valve, 29- solenoid fuel injection valve, 30- regard oil mirror, 31- oil return shut-off valve, 32- thermostat, 33- plate heat exchanger, 34- water cooling
Exhaust manifold, 35- anti-icing fluid water pump, 36- gas engine cylinder sleeve, 37- turbo charging installation, 38- gas-water heat exchanger, 39-
Silencer, 40- mixing valve, 41- intercooler.
In figure, arrow direction indicates the flow direction of fluid in pipeline.
Specific embodiment
As shown in Figure 1, screw type water source gas-burning machine heat pump water chiller-heater unit includes dynamical system, refrigerant system, oil return
System and engine exhaust heat recovery system, in which:
Dynamical system includes at least gas engine 1, flywheel 2, acceleration type clutch 3 and shaft coupling 4；Wherein acceleration type from
Clutch 3 is connect with gas engine 1 using flywheel 2, and acceleration type clutch 3 and screw type refrigerating compressor 5 are connected using shaft coupling 4
It connects, acceleration type clutch 3 is used to improve the output revolving speed of gas engine 1 and controls the on-off of power transmission, flywheel 2 and shaft coupling
Device 4 has shock-absorbing function, can effectively reduce noise when unit operation and vibration.
Refrigerant system includes at least screw type refrigerating compressor 5, discharge line valve 6, oil eliminator 7, screw down nonreturn valve
8, water cooled condenser 9, device for drying and filtering 10, liquid supply electromagnetic valve 11, liquid-sighting glass 13, electric expansion valve 14, dry evaporator 15,
Gas-liquid separator 16, suction filter 17, suction line valve 18, bypass line part 19 and connecting line, wherein water-cooled
The channel AB of condenser 9 is shell side, and the channel EF is tube side, and the channel MN of dry evaporator 15 is shell side, and the channel XY is tube side；Spiral shell
Rod-type refrigeration compressor 5 sucks the refrigerant vapour of low-temp low-pressure, the refrigerant of low-temp low-pressure from the outlet of suction filter 17
Steam enters oil eliminator 7 after 5 adherence pressure of screw type refrigerating compressor, temperature and carries out Oil-gas Separation, after separation is fuel-displaced
High-temperature high-pressure refrigerant steam through screw down nonreturn valve 8 enter water cooled condenser 9 the channel AB, in water cooled condenser 9 with
Cooling water in the channel EF exchanges heat, and high-temperature high-pressure refrigerant steam is condensed into liquid, and liquid refrigerant is successively through dried
Filter 10, liquid supply electromagnetic valve 11, feed flow ball valve 12, liquid-sighting glass 13 enter electric expansion valve 14, and the refrigerant liquid of high pressure is in electricity
It is expanded in sub- expansion valve 14 after the gas-liquid two-phase of low-temp low-pressure into the channel XY of dry evaporator 15, refrigerant is steamed in dry type
The heat that chilled water in the channel MN is absorbed in hair device 15 becomes the refrigerant vapour of low-temp low-pressure, and refrigerant vapour is in gas-liquid separation
After isolating liquid refrigerant in device 16, screw type refrigerating compressor 5 is returned through suction filter 17 and suction line valve 18, from
And complete refrigerant circulation.When unit freezes, chilled water absorbs the heat of user；When heating, cooling water provides heat for user.
One bypass line part 19 is set in screw type water source gas-burning machine heat pump water chiller-heater unit of the invention, it
One end is connected on the pipeline between suction filter 17 and suction line valve 18, and the other end is connected to oil eliminator 7 and cut-off
On pipeline between check-valves 8, bypass solenoid valve 20 and bypass cutoff valve 21 are provided on bypass line part 19.Its effect is
After the shutdown of screw type refrigerating compressor 5, the endotracheal pressure of suction is balanced by opening bypass solenoid valve 20, is convenient for screw rod
Starting next time of formula refrigeration compressor 5.
As shown in Fig. 2, oil return system includes at least oil eliminator 7, middle effect oil strainer 22, oil pump 23, oil pump bypass electricity
Magnet valve 24, oil cooler 25, efficient oil strainer 26, oil stream amount switch 27, working connection solenoid valve 28, solenoid fuel injection valve 29, view
Oil mirror 30, oil return shut-off valve 31 and connecting line.The lubricating oil contained in refrigerant is separated in oil eliminator 7, profit
Lubricating oil imitates the progress primary filter of oil strainer 22 in entering, and filtered lubricating oil is cold by oil after 23 adherence pressure of oil pump
But device 25 realizes the cooling of lubricating oil, keeps lubricating oil viscosity, subsequently enters efficient oil strainer 26 and carries out secondary filtration, through two
The filtered lubricating oil of grade is divided into two-way, wherein all the way, lubricating oil is through oil stream amount switch 27, working connection solenoid valve 28, depending on oil
Mirror 30, oil return shut-off valve 31 enter screw type refrigerating compressor 5 main oil return opening, another way, lubricating oil through solenoid fuel injection valve 29,
The jet for entering screw type refrigerating compressor 5 depending on oil mirror 30, oil return shut-off valve 31, to realize the circulation of lubricating oil；In spiral shell
Exhaust outlet, air entry and the main oil return opening of rod-type refrigeration compressor 5 are equipped with temperature sensor and pressure sensor, when exhaust temperature
When degree is higher than 80 DEG C, solenoid fuel injection valve 29 is opened, and exhaust temperature is reduced by spraying lubricating oil into screw type refrigerating compressor 5
Degree；When the pressure difference of the main oil return opening of screw type refrigerating compressor 5 and air entry is less than 0.6MPa, in order to guarantee to compress function
It is normally lubricated, oil pump 23 is opened at this time, and lubricating oil returns to compressor under the action of oil pump 23；When screw type cold pressure
When the oil return opening of contracting machine 5 and the pressure difference of air entry are greater than 0.6MPa, oil pump 23 is closed, and oil pump bypass solenoid valve 24 is opened, profit
Lubricating oil returns to compressor under the effect of pressure itself difference；The outlet of oil cooler 28 is provided with temperature sensor, and oil cooler goes out
When oil temperature at mouthful is lower than 60 DEG C, the blower of oil cooler 25 is remained turned-off；When the oil temperature in 25 exit of oil cooler is higher than 60
DEG C when, the blower of oil cooler 25 is opened；When the pressure drop of lubricating oil in the filter reaches 0.15MPa, show that filter is stifled
Plug is serious, should replace the filtration core of filter in time.
As shown in figure 3, engine exhaust heat recovery system mainly includes thermostat 32, gas-water heat exchanger 38, plate-type heat-exchange
Device 33, intercooler 41 and connecting line.Anti-icing fluid from gas engine cylinder sleeve 36 enters plate heat exchanger through thermostat 32
33 anti-icing fluid import, the higher anti-icing fluid of temperature reject heat to heat recovery water, anti-icing fluid temperature in plate heat exchanger 33
Degree reduces；The anti-icing fluid outlet of plate heat exchanger 33 is connected with the anti-icing fluid import of water cooled exhaust manifold 34, and anti-icing fluid is in water cooling
The heat of gas engine flue gas (usual gas engine flue-gas temperature is 400 ~ 600 DEG C), flue gas are absorbed in exhaust manifold 34
Temperature tentatively reduced；Anti-icing fluid water pump 35 exports antifreeze after sucking heats up from the anti-icing fluid of water cooled exhaust manifold 34
Liquid, anti-icing fluid return to gas engine cylinder sleeve 36 after 35 adherence pressure of water pump, complete the interior circulation of anti-icing fluid；Gas engine
1 flue gas initially enters water cooled exhaust manifold 34 and is tentatively cooled down, and rejects heat to anti-icing fluid, and the flue gas after cooling is through whirlpool
Wheel pressurizing apparatus 37 enters the gas inlet of gas-water heat exchanger 38, and flue gas rejects heat in gas-water heat exchanger 38
Heat recovery water, flue-gas temperature further decrease, and the flue gas (80 ~ 100 DEG C) after cooling down twice discharges after silencer 39, thus
Realize the waste heat recycling of gas engine cylinder sleeve 36 and flue gas；Air and natural gas enter turbocharging after the mixing of mixing valve 40
Device 37, fuel pressure is elevated, while also resulting in the raising of fuel temperature, and it is cooling that the fuel of high temperature and pressure enters intercooler 41
Cooling, the high pressure fuel after cooling enter gas engine 1, realize the pressurization of fuel.
Heat recovery water into engine exhaust heat recovery system is divided into two-way, wherein all the way, first passing through gas-water heat exchanger
38 by gas engine flue gas, using plate heat exchanger 33 by anti-icing fluid reheating；Another way, by intercooler 41
It is heated by high temperature gaseous fuel.Temperature is equipped on the water side entrance pipe and 41 water side entrance pipe of intercooler of gas-water heat exchanger 38
Sensor is spent, for detecting respective inflow temperature.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.In the present invention, the work of refrigerant system
Matter can be the common refrigerants such as R134a, R22, R407C, R401A.So if those skilled in the art is enlightened by it,
In the case where not departing from the invention objective, element moulding, connection type are not inventively designed, with the technical solution phase
As frame mode and embodiment, be within the scope of protection of the invention.
Claims (4)
1. a kind of screw type water source gas-burning machine heat pump water chiller-heater unit, including dynamical system, engine exhaust heat recovery system, refrigeration
Agent system and oil return system；
The dynamical system includes at least gas engine (1), flywheel (2), acceleration type clutch (3) and shaft coupling (4)；
The refrigerant system includes at least screw type refrigerating compressor (5), discharge line valve (6), oil eliminator (7), cut-off
Check-valves (8), water cooled condenser (9), device for drying and filtering (10), liquid supply electromagnetic valve (11), feed flow ball valve (12), liquid-sighting glass
(13), electric expansion valve (14), dry evaporator (15), gas-liquid separator (16), suction filter (17), suction line valve
(18), bypass line part (19)；
The oil return system includes at least oil eliminator (7), middle effect oil strainer (22), oil pump (23), oil pump bypass solenoid valve
(24), oil cooler (25), efficient oil strainer (26), oil stream amount switch (27), working connection solenoid valve (28), solenoid fuel injection valve
(29), oil mirror (30) are regarded；
The engine exhaust heat recovery system includes at least thermostat (32), gas-water heat exchanger (38), plate heat exchanger
(33), anti-icing fluid water pump (35) and intercooler (41).
2. screw type water source gas-burning machine heat pump water chiller-heater unit according to claim 1, it is characterized in that: acceleration type clutch
(3) it is connect with gas engine (1) using flywheel (2), acceleration type clutch (3) and screw type refrigerating compressor (5) are using connection
Axis device (4) connection, acceleration type clutch (3) are used to improve the output revolving speed of gas engine (1) and control the logical of power transmission
Disconnected, flywheel (2) and shaft coupling (4) have shock-absorbing function.
3. screw type water source gas-burning machine heat pump water chiller-heater unit according to claim 1, it is characterized in that: screw type water source fires
One bypass line part (19) is set in mechanism of qi heat pump water chiller-heater unit, its one end is connected to suction filter (17) and inhales
On pipeline between gas shut-off valve (18), the other end is connected on the pipeline between oil eliminator (7) and screw down nonreturn valve (8),
Bypass solenoid valve (20) and bypass cutoff valve (21) are provided on the bypass line part.
4. screw type water source gas-burning machine heat pump water chiller-heater unit according to claim 1, it is characterized in that: into more than engine
The heat recovery water of heat recovery system is divided into two-way, wherein all the way, gas-water heat exchanger (38) are first passed through, using plate-type heat-exchange
Device (33)；Another way passes through intercooler (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820381940.3U CN208443066U (en) | 2018-03-20 | 2018-03-20 | Screw type water source gas-burning machine heat pump water chiller-heater unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820381940.3U CN208443066U (en) | 2018-03-20 | 2018-03-20 | Screw type water source gas-burning machine heat pump water chiller-heater unit |
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| Publication Number | Publication Date |
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| CN208443066U true CN208443066U (en) | 2019-01-29 |
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ID=65093188
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820381940.3U Active CN208443066U (en) | 2018-03-20 | 2018-03-20 | Screw type water source gas-burning machine heat pump water chiller-heater unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224826A (en) * | 2018-03-20 | 2018-06-29 | 蓝焰高科（天津）燃气技术有限公司 | Screw type water source gas-burning machine heat pump water chiller-heater unit and operation method |
| CN111380257A (en) * | 2020-03-30 | 2020-07-07 | 上海南进热能技术有限公司 | Heat pump for realizing non-stop defrosting by utilizing waste heat of cylinder sleeve water of internal combustion engine |
-
2018
- 2018-03-20 CN CN201820381940.3U patent/CN208443066U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224826A (en) * | 2018-03-20 | 2018-06-29 | 蓝焰高科（天津）燃气技术有限公司 | Screw type water source gas-burning machine heat pump water chiller-heater unit and operation method |
| CN111380257A (en) * | 2020-03-30 | 2020-07-07 | 上海南进热能技术有限公司 | Heat pump for realizing non-stop defrosting by utilizing waste heat of cylinder sleeve water of internal combustion engine |
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