CN204648754U - A kind of natural gas station energy saver - Google Patents
A kind of natural gas station energy saver Download PDFInfo
- Publication number
- CN204648754U CN204648754U CN201520141681.3U CN201520141681U CN204648754U CN 204648754 U CN204648754 U CN 204648754U CN 201520141681 U CN201520141681 U CN 201520141681U CN 204648754 U CN204648754 U CN 204648754U
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- China
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- natural gas
- fan
- tube
- finned tube
- heat exchanger
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Abstract
A kind of natural gas station energy saver is connected with heat exchange tube inlet (11) by natural gas line (1), temperature monitor (3) exports (12) and is connected with heat exchanger tube, the outlet of compressor (4) is connected with refrigerant inlet (16), the entrance of compressor (4) is respectively with the finned tube evaporator (6) of band fan be with one end of the finned tube evaporator of fan (8) to be connected, refrigerant outlet 15 by choke valve (9) respectively with the finned tube evaporator (6) of band fan be with the other end of the finned tube evaporator of fan (8) to be connected, temperature monitor 3 and compressor 4 link.It is good that the utility model has heating effect, the advantage that natural gas cold energy is recycled.
Description
Technical field
The utility model relates to a kind of natural gas station energy saver.
Background technology
In natural gas long distance delivery process, be all the gas of high pressure, before delivering to user, need step-down.At natural gas station, such as divide defeated station, door station, field, natural gas pressure regulating station etc. all will carry out pressure regulation to natural gas, natural gas is being carried out to the process of reducing pressure by regulating flow, Joule-Thomson effect can be produced, make the gas temperature after pressure regulation very low, the heavy hydrocarbon at this moment in natural gas and moisture can be condensed, and form ice and block up, pipeline is resulted in blockage destruction, thus causes the instability of natural gas transport process.Therefore need to heat natural gas before and after step-down.And the temperature drop that in natural gas pressure regulating process, natural gas produces due to pressure drop, about Pressure Drop 1MPa can produce temperature and fall about 5 DEG C, and the cold energy that significantly temperature drop produces does not have reasonably to recycle at present.
Traditional natural gas line heater mostly is the electric tracing made according to kelvin effect, is characterized in, by being wound around heating wire at natural gas line outer wall, outside heating wire, arranging insulating, carries out the process that heats to reach to natural gas line.But because current electric heat tracing device structural design is unreasonable, the thermal efficiency of heating wire is too low, heating wire with accompany the contact wall area of hot natural gas line comprehensive not, the temperature causing electric tracing natural gas line can be improved is very limited, causes whole electric heat tracing device heat transfer property not good.
Summary of the invention
The natural gas line that effectively can not relate to pressure regulation to natural gas station for current existing electric heat tracing device carries out the problem heated, the purpose of this utility model is that to propose a kind of heating effect good, the natural gas station energy saver that natural gas cold energy is recycled.
The technical solution of the utility model is: a kind of natural gas station energy saver, it comprises the finned tube evaporator of band fan, shell and tube exchanger, compressor, choke valve, temperature monitor, it is characterized in that natural gas line is connected with heat exchange tube inlet in shell and tube exchanger, temperature monitor exports with heat exchanger tube in shell and tube exchanger and is connected, finned tube evaporator with fan is placed on Indoor environment, finned tube evaporator with fan is placed on outdoor buildings, the outlet of compressor is connected with refrigerant inlet, the entrance of compressor is respectively with the finned tube evaporator of band fan be with one end of the finned tube evaporator of fan to be connected, refrigeration outlet by choke valve respectively with band fan finned tube evaporator and be with the other end of the finned tube evaporator of fan to be connected, stop valve is had between the finned tube evaporator of choke valve and band fan, stop valve is had between the finned tube evaporator of choke valve and band fan, temperature monitor and compressor link.
Shell and tube exchanger as above comprises housing, heat exchanger tube, there is heat exchange tube inlet one end of housing, the other end has heat exchanger tube to export, the case top being positioned at heat exchanger tube exit end has refrigerant inlet, the housing bottom being positioned at heat exchange tube inlet one end has refrigerant outlet, and in housing, there is tube sheet at two ends, and heat exchanger tube is connected with two ends tube sheet.
The working condition of whole system is, when needing refrigeration summer, stop valve cuts out, stop valve is opened, and the gaseous refrigerant of HTHP enters shell and tube exchanger to heated by natural gas from compressor, the cold-producing medium shell discharging pipe formula heat exchanger that condensation is got off, enter choke valve throttling, enter indoor finned tube evaporator through stop valve and provide cold to indoor, enter compressor after cold-producing medium heat absorption becomes the gas of low-temp low-pressure, the gas being compressed into HTHP forms a circulation.When not needing to freeze season, stop valve is opened, stop valve cuts out, the gaseous refrigerant of HTHP enters shell and tube exchanger to heated by natural gas from compressor, the cold-producing medium shell discharging pipe formula heat exchanger that condensation is got off, enter choke valve throttling, enter outdoor finned tube evaporator through stop valve, the gas becoming low-temp low-pressure after cold-producing medium heat absorption enters compressor.
The heater that the utility model relates to is a set of heat pump by being with the finned tube evaporator of fan, condenser, compressor, throttling arrangement to form, and it is from air drawn heat, by condenser to natural gas line heat exchange.Its advantage is that the efficiency of heat pump is higher than electrically heat tracing efficiency more energy-conservation.
Be provided with natural gas cold energy recovery system simultaneously, the cold energy produced by natural gas pressure drop is recycled, in summer, by cold energy output system, this part complementary energy is outputted to Indoor environment, instead of the effect of Summer Indoor air-conditioning, play energy-conservation effect.In addition, this energy saver is also provided with temperature interlock system, temperature signal and compressor operating load is interlocked, Real-Time Monitoring temperature signal, is controlled the ruuning situation of compressor by interlock system reasonable adjusting, for electric energy is saved in field, station.
This heating is also that the one lower to electric heat tracing device efficiency is improved simultaneously, electrically heat tracing most effective be 1, and heat pump is under unfavorable operating mode, outdoor temperature is-15 DEG C, when heated medium (fluid) outlet temperature is 30 DEG C, efficiency still can reach 2.8, therefore can solve the not high problem of electrically heat tracing efficiency.
The utility model compared with prior art tool has the following advantages:
1, fully cold can be recycled, more energy-efficient;
2, heat exchange area contact is more abundant, good effect of heat exchange;
3, load regulation range is large, can regulate the size of load according to gas outlet temperature in real time.
Accompanying drawing illustrates:
Fig. 1 is the utility model natural gas station energy saver structural representation;
Fig. 2 is the structural representation of shell and tube exchanger.
1 is natural gas line, and 2 is shell and tube exchangers, and 3 is temperature monitors, 4 is compressors, and 5 is buildings, and 6 is the finned tube evaporators being with fan, 7A, 7B are stop valves, and 8 is the finned tube evaporators being with fan, and 9 is choke valves, 10 is heat exchanger tubes, and 11 is heat exchange tube inlets, and 12 is heat exchanger tube outlets, 13 is heat exchanger tube housings, 14 is tube sheets, and 15 is refrigerant outlets, and 16 is refrigerant inlets.
Detailed description of the invention
In order to be that technical problem, technical scheme and the beneficial effect that the utility model solves clearly is understood, below in conjunction with accompanying drawing, the utility model is further elaborated.
Embodiment 1
A kind of natural gas station energy saver, it comprises the finned tube evaporator 6 of band fan, 8, shell and tube exchanger 2, compressor 4, choke valve 9, temperature monitor 3, it is characterized in that natural gas line 1 is connected with heat exchange tube inlet in shell and tube exchanger 2, temperature monitor 3 exports with heat exchanger tube in shell and tube exchanger 2 and is connected, it is indoor that finned tube evaporator 6 with fan is placed on building 5, it is outdoor that finned tube evaporator 8 with fan is placed on building 5, the outlet of compressor 4 is connected with refrigerant inlet 16, the entrance of compressor 4 is respectively with the finned tube evaporator 6 of band fan be with one end of the finned tube evaporator 8 of fan to be connected, refrigeration outlet 15 by choke valve 9 respectively with the finned tube evaporator 6 of band fan be with the other end of the finned tube evaporator 8 of fan to be connected, stop valve 7A is had between the finned tube evaporator 6 of choke valve 9 and band fan, stop valve 7B is had between the finned tube evaporator 8 of choke valve 9 and band fan, temperature monitor 3 and compressor 4 link.
Described shell and tube exchanger 2 comprises housing 13, heat exchanger tube 10, there is heat exchange tube inlet 11 one end of housing 13, the other end has heat exchanger tube to export 12, be positioned at housing 13 top that heat exchanger tube exports 12 one end and have refrigerant inlet 16, have refrigerant outlet 15 bottom the housing 13 being positioned at heat exchange tube inlet 11 one end, in housing 13, there is tube sheet 14 at two ends, and heat exchanger tube 10 is connected with two ends tube sheet 14.
The working condition of whole system is, when needing refrigeration summer, stop valve 7B closes, stop valve 7A opens, and the gaseous refrigerant of HTHP enters shell and tube exchanger 2 to heated by natural gas from compressor 4, the cold-producing medium shell discharging pipe formula heat exchanger 2 that condensation is got off, enter choke valve 9 throttling, enter indoor finned tube evaporator 6 through stop valve 7A and provide cold to indoor, enter compressor 4 after cold-producing medium heat absorption becomes the gaseous state of low-temp low-pressure, the gas being compressed into HTHP forms a circulation.When not needing to freeze season, stop valve 7B opens, stop valve 7A closes, the gaseous refrigerant of HTHP enters shell and tube exchanger 2 to heated by natural gas from compressor 4, the cold-producing medium shell discharging pipe formula heat exchanger 2 that condensation is got off, enter choke valve 9 throttling, enter outdoor finned tube evaporator 8 through stop valve 7B, become gas after cold-producing medium heat absorption and enter compressor 4.
Claims (2)
1. a natural gas station energy saver, it comprises natural gas line (1), finned tube evaporator (6) with fan, (8), compressor (4), choke valve (9), temperature monitor (3), it is characterized in that natural gas line (1) is connected with heat exchange tube inlet (11) in double pipe heat exchanger (2), temperature monitor (3) exports (12) with heat exchanger tube in double pipe heat exchanger (2) and is connected, it is indoor that finned tube evaporator (6) with fan is placed on building (5), it is outdoor that finned tube evaporator (8) with fan is placed on building (5), the outlet of compressor (4) is connected with refrigerant inlet (16), the entrance of compressor (4) is respectively with the finned tube evaporator (6) of band fan be with one end of the finned tube evaporator of fan (8) to be connected, refrigerant outlet 15 by choke valve (9) respectively with the finned tube evaporator (6) of band fan be with the other end of the finned tube evaporator of fan (8) to be connected, stop valve (7A) is had between the finned tube evaporator (6) of choke valve (9) and band fan, stop valve (7B) is had between the finned tube evaporator (8) of choke valve (9) and band fan, temperature monitor 3 and compressor 4 link.
2. a kind of natural gas station energy saver as claimed in claim 1, it is characterized in that described double pipe heat exchanger (2) comprises housing (13), heat exchanger tube (10), there is heat exchange tube inlet (11) one end of housing (13), the other end has heat exchanger tube to export (12), refrigerant inlet (16) is arranged at housing (13) top being positioned at heat exchanger tube outlet (12) one end, refrigerant outlet (15) is arranged at housing (13) bottom being positioned at heat exchange tube inlet (11) one end, in housing (13), there is tube sheet (14) at two ends, heat exchanger tube (10) is connected with two ends tube sheet (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520141681.3U CN204648754U (en) | 2015-03-12 | 2015-03-12 | A kind of natural gas station energy saver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520141681.3U CN204648754U (en) | 2015-03-12 | 2015-03-12 | A kind of natural gas station energy saver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204648754U true CN204648754U (en) | 2015-09-16 |
Family
ID=54101497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520141681.3U Expired - Fee Related CN204648754U (en) | 2015-03-12 | 2015-03-12 | A kind of natural gas station energy saver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204648754U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560129A (en) * | 2017-08-31 | 2018-01-09 | 中国能源建设集团广东省电力设计研究院有限公司 | Heated by natural gas and air conditioner refrigerating coupled system and method |
| CN113776230A (en) * | 2021-09-25 | 2021-12-10 | 益鹏智能系统科技(上海)有限公司 | Control method and system for natural gas heating electronic expansion valve |
-
2015
- 2015-03-12 CN CN201520141681.3U patent/CN204648754U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560129A (en) * | 2017-08-31 | 2018-01-09 | 中国能源建设集团广东省电力设计研究院有限公司 | Heated by natural gas and air conditioner refrigerating coupled system and method |
| CN107560129B (en) * | 2017-08-31 | 2020-04-21 | 中国能源建设集团广东省电力设计研究院有限公司 | Natural gas heating and air conditioner refrigeration coupling system and method |
| CN113776230A (en) * | 2021-09-25 | 2021-12-10 | 益鹏智能系统科技(上海)有限公司 | Control method and system for natural gas heating electronic expansion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20170312 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |