CN107560129A - Heated by natural gas and air conditioner refrigerating coupled system and method - Google Patents

Heated by natural gas and air conditioner refrigerating coupled system and method Download PDF

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Publication number
CN107560129A
CN107560129A CN201710772250.0A CN201710772250A CN107560129A CN 107560129 A CN107560129 A CN 107560129A CN 201710772250 A CN201710772250 A CN 201710772250A CN 107560129 A CN107560129 A CN 107560129A
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natural gas
heat exchange
heated
water
air conditioner
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CN107560129B (en
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石佳
蔡春荣
李伟科
施海云
邓宏伟
胡波
孙竞瑜
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China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
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China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
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Abstract

The invention discloses a kind of heated by natural gas and air conditioner refrigerating coupled system and method, the coupled system includes heat exchange gas device, the heat exchange gas device is provided with the first heat exchange side and the second heat exchange side of mutual heat exchange, one end of the first heat exchange side is connected with the air inlet pipeline entered for natural gas, the other end is connected with the outlet pipe for natural gas outflow, one end of the second heat exchange side is connected with supply channel, the other end is connected with water return pipeline, the supply channel is used to connect with the chilled water inlet of the indoor units of air-conditioning, the water return pipeline is used to connect with the chilled water outlet of the indoor units.The present invention need not consume the extra energy and carry out heated natural gas, the heat of the chilled water high-temperature tempering by collecting air-conditioning, realize to heated by natural gas, reduce the operating cost of power plant, increase economic efficiency.Also, cold energy caused by natural gas pressure regulating temperature drop is cooled for chilled water, it is possible to reduce power plant's refrigeration system operating cost.

Description

Heated by natural gas and air conditioner refrigerating coupled system and method
Technical field
The present invention relates to generating equipment technical field, more particularly, to a kind of heated by natural gas and air conditioner refrigerating coupled system And method.
Background technology
Gas turbine have the advantages that efficiency high, low cost, it is environment-friendly, take up an area less, regulation and control it is flexible, combustion and steam joint It is to realize energy-saving and emission-reduction and atmosphere pollution that Cycle Unit or Poly-generation engineering using gas turbine as main frame, which have become country, The generation technology administered and actively encouraged.The gas fuel overwhelming majority of gas turbine is conveyed using pipe network, its discharge pressure (general 5~9Mpa, different regions can difference) be often higher than required by gas turbine use pressure (2~4Mpa, according to Type is different), therefore need to be depressured before combustion engine is entered in voltage regulating station;And on the other hand because natural gas own physical is special Property, temperature can decline with the reduction of pressure, and pressure often declines 1MPa, and temperature reduces about 5 DEG C.Pipeline natural gas is usual LNG (Liquefied Natural Gas, liquefied natural gas) from nearby stands, and temperature at 0~20 DEG C or so, drop by pressure regulation After pressure, temperature would fall to less than 0 DEG C, therefore in order to meet the intake air temperature of gas turbine and prevent gas fuel from freezing (ice blocks up) now is blocked, gas fuel need to be heated, to ensure that the highly effective and safe of unit is run.
The traditional heating mode of gas fuel typically consumes extra fuel or other energy to realize.For example, in electricity Generally using the mode of heating such as Electric heating and water-bath stove mode in factory.Electric heating is by fuel channel Heating resistance wire is wound, or fuel is heated by electric heater, this mode is required for consuming more electric energy, makes The increase of unit station service, reduces power supplying efficiency.Water-bath stove mode is that the middle part gas fuel that extracts heats WATER AS FLOW MEDIUM, is passed through Hot water vapor reheats main gaseous fuel, and this mode directly consumes gas fuel, increases cost of electricity-generating.Developed recently, Have and use auxiliary steam mode of heating and heating backwater mode of heating.Auxiliary steam mode of heating, be by extract boiler or Some vapor in steam turbine carrys out heated natural gas, and this, which will be reduced, is used for the steam of generating of doing work, and reduces generating efficiency;Heating backwater Mode of heating, then it is with returning again to condenser after heating backwater heated natural gas, after such a mode heating return water temperature reduces, need Required temperature can be just heated to by consuming more fuel.Therefore either auxiliary steam or heat supply backwater, are required for volume Outer fuel is heated, and belongs to power consumption form.In summary, traditional a variety of heated by natural gas modes belong to extra power consumption Mode of heating, be unfavorable for lifted power plant economy.
The content of the invention
Based on this, the defects of the invention reside in prior art is overcome, there is provided a kind of heated by natural gas couples with air conditioner refrigerating System and method, heated by natural gas energy consumption is which reduced, and reduce air-conditioning refrigeration system operating cost, further increase electricity The economy of factory.
Its technical scheme is as follows:
A kind of heated by natural gas and air conditioner refrigerating coupled system, including heat exchange gas device, the heat exchange gas device are set There are the first heat exchange side and the second heat exchange side of mutual heat exchange, one end of the first heat exchange side is connected with what is entered for natural gas Air inlet pipeline, the other end are connected with the outlet pipe for natural gas discharge, and one end of the second heat exchange side is connected with feed pipe Road, the other end are connected with water return pipeline, and the supply channel is used to connect with the chilled water inlet of the indoor units of air-conditioning, described Water return pipeline is used to connect with the chilled water outlet of the indoor units.
Heated by natural gas and air conditioner refrigerating coupled system described in the embodiment of the present invention, using in air conditioning water system Chilled water high-temperature tempering is entered in day hot gas heat exchanger and cryogenic natural gas is exchanged heat, after heat exchange, natural gas temperature rise It is conveyed to gas turbine utilization;Then temperature declines chilled water high-temperature tempering, and gets in heat exchange in unit and air is dropped Temperature, so move in circles.The present invention need not consume the extra energy and carry out heated natural gas, high by the chilled water for collecting air-conditioning The heat of warm backwater, realize to heated by natural gas, heated by natural gas system is reduced power plant without using other high-grade thermals source Operating cost, increase economic efficiency.Also, cold energy caused by natural gas pressure regulating temperature drop is cooled for chilled water, can be with Reduce power plant's refrigeration system operating cost.Correspondingly, use of the invention then eliminates the refrigerator appliance of costliness, reduces power plant Investment;Also, refrigeration machine is powerful device, station service can be reduced after cancellation, reduces power plant's operating cost, improves power supply effect Rate;In addition, using refrigerant is without the use of after the present invention, greenhouse gas emission is reduced, it is more environmentally friendly.Finally, due to freezing temperature The technological parameter such as degree and pressure is relatively low, low to heated by natural gas system equipment and requirements for pipes in conveying and heat transfer process, is System is also relatively easy, therefore identical equipment, and safety in operation itself is higher, and the disposable input cost of system is relatively low, long lifespan.
Above-mentioned technical proposal is further described below:
In one of the embodiments, in addition to buffer storage tank, the buffer storage tank located at the supply channel with Between the indoor units.Buffer storage tank is used to buffer the load between heated by natural gas and air conditioner refrigerating, to according to reality Border is needed to obtain the freezing water into air-conditioning, and unnecessary chilled water is then stored in buffer storage tank.
In one of the embodiments, in addition to delivery pump, the delivery pump are located at the buffer storage tank and the room Between interior unit.Delivery pump is providing the pressure of chilled water conveying so that chilled water can enter required place.
In one of the embodiments, in addition to standby water system, the standby water system access from the water return pipeline, And picked out from the supply channel.The standby water system is used to carry for the heat exchange gas device when the air-conditioning does not run Supplying heat source.When air conditioner refrigerating need not be used, such as winter or other temperature relatively low time, because heat exchange gas device can not obtain Chilled water high-temperature tempering is obtained, therefore the thermal source of heated natural gas need to be provided by standby water system so that heated by natural gas Thermal source can obtain lasting supply.
In one of the embodiments, the standby water system includes the high-temperature inlet water on the buffer storage tank Pipe, the shunt valve in parallel for being located at the indoor units both ends and the low temperature outlet pipe connected with the supply channel.From high temperature The recirculated water of higher temperature is introduced into buffer storage tank in water inlet pipe, recirculated water changes after shunt valve into natural gas afterwards Heat exchange is carried out in hot device, finally becomes low-temperature circulating water again and is flowed out from supply channel and low temperature outlet pipe.It is of the present invention High-temperature inlet water pipe on buffer storage tank, to realize the storage of recirculated water, is reached the work of buffering load by standby water system With.And the in parallel both ends for being located at air-conditioning of shunt valve, (including operation of air conditioner and do not run to realize under different running situations Two kinds of situations) device such as buffer storage tank and delivery pump share.
In one of the embodiments, it is additionally provided with bypass valve on the shunt valve.Bypass valve is controlling the logical of shunt valve It is disconnected.When operation of air conditioner, then bypass valve is closed, prevent the chilled water flow of low temperature to shunt valve.When air-conditioning is not run, then By standby water system and heat exchange gas, then bypass valve is opened.
In one of the embodiments, it is hydrophobic to include open water system, closed Water System or pipe network for the standby water system At least one in system, the high-temperature inlet water pipe and the low temperature outlet pipe with the open water system, described close At least one connection in formula water system or the pipe network draining system.The embodiment of the present invention makes full use of power plant existing The heat for the high temperature circulation water discharged in open water system, closed Water System or pipe network draining system, the heat is used to heat Natural gas, and the low-temperature circulating water Jing Guo heat exchange is flowed back, heated by natural gas function can be realized, and can is open type water system System, closed Water System or pipe network draining system provide low-temperature circulating water, fully improve the economy of power plant.
In one of the embodiments, the indoor units include being used for the first indoor set of production equipment cooling and are used for Second indoor set of workplace cooling, first indoor set and second indoor set are arranged in parallel.The embodiment of the present invention The heat absorption for fully sending production equipment and workplace, on the one hand reach the purpose of cooling, on the other hand realize again The heating of natural gas, avoid by the way of tradition consumes the energy come heated natural gas.
The technical program additionally provides a kind of heated by natural gas and air conditioner refrigerating coupling process, comprises the following steps:Naturally Gas enters the first heat exchange side of heat exchange gas device, and the chilled water flowed out from the indoor units of air-conditioning enters the heat exchange gas Second heat exchange side of device, the natural gas of the first heat exchange side and the chilled water of the described second heat exchange side carry out heat exchange, pass through Natural gas after heating exits into gas turbine, and the chilled water after cooling is flowed back into the indoor units.
Heated by natural gas of the present invention and air conditioner refrigerating coupling process, it is not necessary to which it is natural to heat to consume the extra energy Gas, the heat of the chilled water high-temperature tempering by collecting air-conditioning, realizes to heated by natural gas, heated by natural gas system is made With other high-grade thermals source, the operating cost of power plant is reduced, is increased economic efficiency.Also, by produced by natural gas pressure regulating temperature drop Cold energy for chilled water cool, it is possible to reduce power plant's refrigeration system operating cost.
In one of the embodiments, when the air-conditioning is not run, the hot water in standby water system enters the second heat exchange Heat exchange is carried out with day hot gas in side, is back to afterwards in the standby water system.When air conditioner refrigerating need not be used, such as winter Season or other temperature relatively low time, because heat exchange gas device can not obtain chilled water high-temperature tempering, therefore standby water need to be passed through System provides the thermal source of heated natural gas so that heated by natural gas thermal source can obtain lasting supply.
Brief description of the drawings
Fig. 1 is the theory diagram of the heated by natural gas described in the embodiment of the present invention and air conditioner refrigerating coupled system.
Description of reference numerals:
100th, heat exchange gas device, the 110, first heat exchange side, the 120, second heat exchange side, 210, air inlet pipeline, 220, outlet Pipeline, 310, supply channel, 320, water return pipeline, 400, buffer storage tank, 500, delivery pump, 600, indoor units, 610, One indoor set, the 620, second indoor set, 710, high-temperature inlet water pipe, 720, shunt valve, 721, bypass valve, 730, low temperature outlet pipe.
Embodiment
For the objects, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with accompanying drawing and specific embodiment party Formula, the present invention is described in further detail.It should be appreciated that embodiment described herein is only solving The present invention is released, does not limit protection scope of the present invention.
It should be noted that herein referred " high temperature " and " low temperature " refer to relative concept, such as " high-temperature inlet water pipe " refers to Be that medium in the water inlet pipe has higher temperature compared to the medium in " low temperature outlet pipe "." high temperature " and " low temperature " simultaneously Absolute temperature range is not represented.In addition, unless otherwise indicated, otherwise the term in specification " first " and " second " etc. describe Be used only for distinguishing each component in specification, element, step etc., without be intended to indicate that each component, element, step it Between logical relation or ordinal relation etc..
As shown in figure 1, heated by natural gas and air conditioner refrigerating coupled system described in the embodiment of the present invention, including natural gas change Hot device 100.Wherein, the heat exchange gas device 100 is provided with the first heat exchange side 110 and second heat exchange side 120 of mutual heat exchange. One end of the first heat exchange side 110 is connected with the air inlet pipeline 210 entered for natural gas, the other end is connected with and arranged for natural gas The outlet pipe 220 gone out.One end of the second heat exchange side 120 is connected with supply channel 310, the other end is connected with water return pipeline 320.The supply channel 310 is used to connect with the chilled water inlet of the indoor units 600 of air-conditioning, and the water return pipeline 320 is used Connected in the chilled water outlet with the indoor units 600.
The operation principle of the heated by natural gas described in the embodiment of the present invention and air conditioner refrigerating coupled system is said below It is bright:The coupled system is entered using the chilled water high-temperature tempering in air conditioning water system in day hot gas heat exchanger and low temperature day Right gas is exchanged heat, and after heat exchange, natural gas temperature rise is conveyed to gas turbine utilization;Chilled water high-temperature tempering then at a temperature of Drop, and get in heat exchange in unit 600 and air is cooled, so move in circles.The present invention need not consume extra The energy carrys out heated natural gas, the heat of the chilled water high-temperature tempering by collecting air-conditioning, realizes to heated by natural gas, makes natural gas Heating system reduces the operating cost of power plant, increased economic efficiency without using other high-grade thermals source.
Also, because in traditional power plant's air-conditioning system, chilled water is produced by refrigeration machine, and be delivered to needs to cool down afterwards Place indoor set in, so as to absorb the effect that heat reaches cooling, eventually pass back to cryocooled cooling, so circulation, Complete power plant's refrigeration cool-down.And refrigeration machine is expensive powerful device, its equipment cost is high, and power consumption is big, increase power plant fortune Row cost.The embodiment of the present invention just efficiently solves above mentioned problem, and it uses cold energy caused by natural gas pressure regulating temperature drop Cool in chilled water, then eliminate the refrigerator appliance of costliness, reduce power plant's investment;Also, refrigeration machine can reduce factory after cancelling Electricity consumption, power plant's operating cost is reduced, improve power supplying efficiency;In addition, using refrigerant is without the use of after the present invention, greenhouse gas is reduced Body discharges, more environmentally friendly.Finally, due to the technological parameter such as chilled water temperature and pressure is relatively low, in conveying and heat transfer process, to day Right gas heating system device and requirements for pipes are low, and system is also relatively easy, therefore identical equipment, and safety in operation itself is higher, The disposable input cost of system is relatively low, long lifespan.
In the present embodiment, present invention additionally comprises buffer storage tank 400, the buffer storage tank 400 to be located at the water supply Between pipeline 310 and the indoor units 600.Buffer storage tank 400 is used to buffer between heated by natural gas and air conditioner refrigerating Load, to according to the freezing water obtained into air-conditioning is actually needed, unnecessary chilled water is then stored in buffer storage tank 400 In.
Further, in addition to delivery pump 500, the delivery pump 500 are located at the buffer storage tank 400 and the interior Between unit 600.Delivery pump 500 is providing the pressure of chilled water conveying so that chilled water can enter required place.Need Illustrate, in other embodiments, can also save above-mentioned buffer storage tank 400, that is to say by supply channel 310 directly with Indoor apparatus of air conditioner group 600 is connected, and delivery pump 500 is set directly on supply channel 310.
In addition, the embodiment of the present invention also includes standby water system, the standby water system connects from the water return pipeline 320 Enter, and picked out from the supply channel 310.The standby water system is used to change for the natural gas when the air-conditioning does not run Hot device 100 provides thermal source.Specifically, when air conditioner refrigerating need not be being used, such as winter or other temperature relatively low time, due to Heat exchange gas device 100 can not obtain chilled water high-temperature tempering, therefore need to be used by standby water system to provide heated natural gas Thermal source so that heated by natural gas thermal source can obtain lasting supply.
Specifically, the standby water system specifically include high-temperature inlet water pipe 710 on the buffer storage tank 400, The low temperature outlet pipe that parallel connection is located at the shunt valve 720 at the both ends of indoor units 600 and connected with the supply channel 310 730.The recirculated water of higher temperature is introduced into buffer storage tank 400 from high-temperature inlet water pipe 710, recirculated water is by conveying afterwards Pump 500, shunt valve 720 (now indoor units 600 are not run, and recirculated water will not get in unit 600) enter natural gas afterwards In heat exchanger 100, natural gas is transferred heat to, finally becomes low-temperature circulating water again from supply channel 310 and low temperature water outlet Pipe 730 is discharged.Standby water system of the present invention on buffer storage tank 400, circulates high-temperature inlet water pipe 710 to realize The storage of water, have the function that to buffer load.And the both ends in parallel for being located at air-conditioning of shunt valve 720, to realize in different fortune (including operation of air conditioner and two kinds of situations not running) buffer storage tank 400 and the grade device of delivery pump 500 shares in the case of row.
Further, it is additionally provided with bypass valve 721 on the shunt valve 720.Bypass valve 721 is controlling shunt valve 720 Break-make.When operation of air conditioner, then bypass valve 721 is closed, prevent the chilled water flow of low temperature to shunt valve 720.When air-conditioning is not transported During row, then will by standby water system come with heat exchange gas, then bypass valve 721 is opened.
In addition, being additionally provided with switch valve (accompanying drawing is not shown) in the standby water system, switch valve can be located at high-temperature inlet water pipe On 710.When without providing thermal source to heat exchange gas device 100 by standby water system, switch valve can be closed, prevented from standby In the high temperature circulation current direction air-conditioning of water system outflow, refrigeration is influenceed.
The standby water system also include open water system, closed Water System or pipe network draining system at least within it One, the high-temperature inlet water pipe 710 and the low temperature outlet pipe 730 with the open water system, the closed Water System or institute At least one connection in pipe network draining system is stated, to realize that water quality circulates.The embodiment of the present invention makes full use of power plant The heat for the high temperature circulation water discharged in existing open water system, closed Water System or pipe network draining system, the heat is used Flowed back in heated natural gas, and by the low-temperature circulating water Jing Guo heat exchange, heated by natural gas function can be realized, and can is open type Water system, closed Water System or pipe network draining system provide low-temperature circulating water, fully improve the economy of power plant.
In addition, as shown in figure 1, the indoor units 600 include being used for the first indoor set 610 of production equipment cooling and used In the second indoor set 620 of workplace cooling, first indoor set 610 and second indoor set 620 are arranged in parallel.This The heat absorption that inventive embodiments fully send production equipment and workplace, on the one hand reach the purpose of cooling, the opposing party Face realizes the heating of natural gas again, avoids by the way of tradition consumes the energy come heated natural gas.
The technical program is additionally provided a kind of heated by natural gas implemented using above-mentioned coupled system and coupled with air conditioner refrigerating Method, comprise the following steps:Natural gas enters the first heat exchange side 110 of heat exchange gas device 100, from the indoor units of air-conditioning 600 outflow chilled waters enter the heat exchange gas device 100 second heat exchange side 120, it is described first heat exchange side 110 it is natural Gas and the chilled water of the described second heat exchange side 120 carry out heat exchange, and the natural gas after heating exits into gas turbine, passes through The chilled water crossed after cooling is flowed back into the indoor units 600.
Heated by natural gas of the present invention and air conditioner refrigerating coupling process, it is not necessary to which it is natural to heat to consume the extra energy Gas, the heat of the chilled water high-temperature tempering by collecting air-conditioning, realizes to heated by natural gas, heated by natural gas system is made With other high-grade thermals source, the operating cost of power plant is reduced, is increased economic efficiency.Also, by produced by natural gas pressure regulating temperature drop Cold energy for chilled water cool, it is possible to reduce power plant's refrigeration system operating cost.
Wherein, when the air-conditioning is not run, the hot water in standby water system enters in the second heat exchange side to enter with day hot gas Row heat exchange, it is back to afterwards in the standby water system.That is, when air conditioner refrigerating need not be used, as winter or other The temperature relatively low time, because heat exchange gas device 100 can not obtain chilled water high-temperature tempering, therefore need to by standby water system come There is provided the thermal source of heated natural gas so that heated by natural gas thermal source can obtain lasting supply.
It should be noted that heated by natural gas described in the embodiment of the present invention and air conditioner refrigerating coupling process with it is above-mentioned natural Gas heats, details about heated by natural gas Yu air conditioner refrigerating coupling process identical with the operation principle of air conditioner refrigerating coupled system Implement the description that structures and methods can refer to coupled system, do not repeat herein.
The concrete application of heated by natural gas and air conditioner refrigerating coupled system and method is illustrated below in conjunction with example: In a GTCC power plant kind, two sets of 9F level Gas Turbine Combined-cycles, the Nm/h of natural gas gas consumption about 180,000, pipe network distribution pressure 6 ~9Mpa, after pressure regulation cooling, after heat exchanger exchanges heat, it is transmitted to chilled water and is available for utilizing about 1100KW colds, equivalent to 2 sets Cold caused by the refrigeration unit of 125KW electrical power, and about 2,500,000 yuan of people of the refrigeration unit market price of 2 sets of 125KW electrical power People's coin, the daily kilowatt hour of power consumption 6000.And after heated by natural gas and air conditioner refrigerating coupling, power plant is without supporting 2 sets of 125KW electric works The refrigeration unit of rate, both reduced investment outlay, and reduced power consumption again.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Scope.

Claims (10)

1. a kind of heated by natural gas and air conditioner refrigerating coupled system, it is characterised in that including heat exchange gas device, the natural gas Heat exchanger is provided with the first heat exchange side and the second heat exchange side of mutual heat exchange, and one end of the first heat exchange side is connected with for natural Air inlet pipeline, the other end of gas entrance are connected with the outlet pipe for natural gas outflow, one end connection of the second heat exchange side There are supply channel, the other end to be connected with water return pipeline, the supply channel is used for the chilled water inlet with the indoor units of air-conditioning Connection, the water return pipeline are used to connect with the chilled water outlet of the indoor units.
2. heated by natural gas according to claim 1 and air conditioner refrigerating coupled system, it is characterised in that also include buffering storage Tank is deposited, the buffer storage tank is located between the supply channel and the indoor units.
3. heated by natural gas according to claim 2 and air conditioner refrigerating coupled system, it is characterised in that also include conveying Pump, the delivery pump are located between the buffer storage tank and the indoor units.
4. heated by natural gas according to claim 1 and air conditioner refrigerating coupled system, it is characterised in that also including standby water System, the standby water system accesses from the water return pipeline, and is picked out from the supply channel, and the standby water system is used for When the air-conditioning does not run thermal source is provided for the heat exchange gas device.
5. heated by natural gas according to claim 4 and air conditioner refrigerating coupled system, it is characterised in that also include buffering storage Tank is deposited, the buffer storage tank is located between the supply channel and the indoor units, and the standby water system includes being located at High-temperature inlet water pipe on the buffer storage tank, shunt valve in parallel located at the indoor units both ends and with the feed pipe The low temperature outlet pipe of road connection.
6. heated by natural gas according to claim 5 and air conditioner refrigerating coupled system, it is characterised in that on the shunt valve It is additionally provided with bypass valve.
7. heated by natural gas according to claim 5 and air conditioner refrigerating coupled system, it is characterised in that the standby water system System also include open water system, closed Water System or pipe network draining system at least one, the high-temperature inlet water pipe and The low temperature outlet pipe with the open water system, the closed Water System or the pipe network draining system at least within One of connection.
8. heated by natural gas according to any one of claim 1 to 7 and air conditioner refrigerating coupled system, it is characterised in that The indoor units include the first indoor set for being used for production equipment cooling and the second indoor set for workplace cooling, institute State the first indoor set and second indoor set is arranged in parallel.
9. a kind of heated by natural gas and air conditioner refrigerating coupling process, it is characterised in that comprise the following steps:Natural gas enters natural First heat exchange side of gas heat exchanger, the chilled water flowed out from the indoor units of air-conditioning enter the second of the heat exchange gas device and changed Hot side, the natural gas of the first heat exchange side and the chilled water of the described second heat exchange side carry out heat exchange, the day after heating Right gas exits into gas turbine, and the chilled water after cooling is flowed back into the indoor units.
10. heated by natural gas according to claim 9 and air conditioner refrigerating coupling process, it is characterised in that when the air-conditioning When not running, the hot water in standby water system enters in the second heat exchange side carries out heat exchange with day hot gas, is back to afterwards described In standby water system.
CN201710772250.0A 2017-08-31 2017-08-31 Natural gas heating and air conditioner refrigeration coupling system and method Active CN107560129B (en)

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