CN205001001U - Natural valve station energy utilization system - Google Patents
Natural valve station energy utilization system Download PDFInfo
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- CN205001001U CN205001001U CN201520667838.6U CN201520667838U CN205001001U CN 205001001 U CN205001001 U CN 205001001U CN 201520667838 U CN201520667838 U CN 201520667838U CN 205001001 U CN205001001 U CN 205001001U
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Abstract
The utility model discloses a natural valve station energy utilization system, including one -level natural gas pipeline, second grade natural gas pipeline, screw rod expander, generator, first heat exchanger and organic working medium rankine cycle return circuit, the entry and the one -level natural gas pipeline intercommunication of screw rod expander, the export of screw rod expander and the natural gas of first heat exchanger entry intercommunication, this screw rod expander can drive the generator electricity generation, first heat exchanger is used for carrying out the heat transfer with the refrigerant that flows in from the refrigerant of this first heat exchanger entry and the natural gas, the natural gas export of first heat exchanger with second grade natural gas pipeline intercommunication, the refrigerant outlet of first heat exchanger is through the refrigerant entry intercommunication of a refrigerant piping with the condenser in organic working medium rankine cycle return circuit. The utility model discloses when lowering natural gas pressure, can retrieve natural gas differential pressure ability and cold energy, reach the make full use of of natural gas energy.
Description
Technical field
The utility model relates to a kind of natural valve station energy utilization system.
Background technique
Gas pressure, in course of conveying, for the ease of conveying, can increase, and need time in urban pipe network to reduce pressure to rock gas by rock gas usually, so that urban subscriber uses, therefore there is a lot of natural valve stations.In natural valve station, adopt reduction valve to reduce the pressure of rock gas, a lot of energy can be discharged in this process, owing to lacking enough recovering meanses, cause having many energy to be wasted.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of natural valve station energy utilization system, and it, while attenuating gas pressure, can reclaim rock gas differential pressure energy and cold energy, reach making full use of of rock gas energy.
For solving the problems of the technologies described above, the technological scheme that the utility model is taked is:
A kind of natural valve station energy utilization system, comprises one-level gas pipeline, secondary gas pipeline, screw expander, generator, First Heat Exchanger and organic working medium Lang Ken circulation loop; The entrance of screw expander is communicated with one-level gas pipeline, and the outlet of screw expander is communicated with the gas inlet of First Heat Exchanger, and this screw expander can generate electricity by drive electrical generators; First Heat Exchanger is used for the refrigerant that the refrigerant inlet from this First Heat Exchanger flowed into and rock gas carries out heat exchange, the gas outlet of First Heat Exchanger is communicated with described secondary gas pipeline, and the refrigerant exit of First Heat Exchanger is communicated with the refrigerant inlet of the condenser of organic working medium Lang Ken circulation loop by the first refrigerant pipeline.
After adopting technique scheme, the utility model at least has the following advantages:
The utility model can reclaim the differential pressure energy in natural gas depressurization process by use screw expander, be electric energy, and also reclaimed cold energy by modes such as heat exchange, thus decrease the waste of the energy, improve the comprehensive utilization ratio of the energy by energy conversion.
Accompanying drawing explanation
Fig. 1 is the principle schematic of a kind of natural valve station energy utilization system according to the utility model one embodiment.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Refer to Fig. 1.According to the one natural valve station energy utilization system of the utility model one embodiment, comprise one-level gas pipeline 11, secondary gas pipeline 12, screw expander 2, generator 3, First Heat Exchanger 41 and organic working medium Lang Ken circulation loop.
The entrance of screw expander 2 is communicated with one-level gas pipeline 11, and the outlet of screw expander 2 is communicated with the gas inlet of First Heat Exchanger 41, and screw expander 2 can generate electricity by drive electrical generators 3.First Heat Exchanger 41 carries out heat exchange for the refrigerant that the refrigerant inlet from this First Heat Exchanger 41 flowed into and rock gas, the gas outlet of First Heat Exchanger 41 is communicated with secondary gas pipeline 12, and the refrigerant exit of First Heat Exchanger 41 is communicated with the refrigerant inlet of the condenser 75 of organic working medium Lang Ken circulation loop by the first refrigerant pipeline 51.First refrigerant pipeline 51 is provided with stop valve 61.
In the present embodiment, this organic working medium Lang Ken circulation loop also comprises decompressor 71, vaporizer 72, recycle pump 73 and the second heat exchanger 74.The outlet of decompressor 71 is communicated with the first organic working medium entrance of the second heat exchanger 74, first organic working medium outlet of the second heat exchanger 74 is communicated with the organic working medium entrance of condenser 75, the organic working medium outlet of condenser 75 is communicated with the entrance of recycle pump 73, the outlet of recycle pump 73 is communicated with the second organic working medium entrance of the second heat exchanger 74, second organic working medium outlet of the second heat exchanger 74 is communicated with the organic working medium entrance of vaporizer 72, the organic working medium outlet of vaporizer 72 is communicated with the entrance of decompressor 71, this vaporizer 72 is for carrying out heat exchange by the hot water from rock gas door station with the organic working medium flowed into from the second heat exchanger 74.
Wherein, the low temperature produced in rock gas pressure reduction can be passed to refrigerant by First Heat Exchanger 41 by screw expander 3, the condenser 75 that cooled refrigerant enters into organic working medium Lang Ken circulation loop carries out condensation to organic working medium, completes the cooling task in organic working medium Lang Ken circulation.Further, this organic working medium Lang Ken circulation loop is also reclaimed by the low temperature exhaust heat of vaporizer 72 by the hot water existed in natural valve station.
Further, natural valve station energy utilization system according to the utility model one embodiment also comprises ice making machine 8, the refrigerant inlet of ice making machine 8 is communicated with the refrigerant exit of First Heat Exchanger 41 by the second refrigerant pipeline 52, and this ice making machine 8 is for cooling to be made into ice to water by the refrigerant flowed into from First Heat Exchanger 41.Second refrigerant pipeline 52 is provided with stop valve 62 and modulating valve 63.
Further, the natural valve station energy utilization system according to the utility model one embodiment also comprises central air-conditioner cooling water circulation loop, and this central air-conditioner cooling water circulation loop comprises cooling tower 91, water pump 92 and the 3rd heat exchanger 93.The cooling water outlet of cooling tower 91 is communicated with the entrance of water pump 92, and the outlet of water pump 92 is communicated with the cold water inlet of the 3rd heat exchanger 93, and the cooling water outlet of the 3rd heat exchanger 93 is communicated with the cold water inlet of cooling tower 91.The refrigerant inlet of the 3rd heat exchanger 93 is communicated with the refrigerant exit of First Heat Exchanger 41 by the 3rd refrigerant pipeline 53, and the 3rd heat exchanger 93 is for carrying out heat exchange by the refrigerant flowed into from First Heat Exchanger 41 and the cold water flowed into from water pump 92.3rd refrigerant pipeline 53 is provided with stop valve 64 and modulating valve 65.Cool cold water by refrigerant, the electric consumption of cooling tower 91 can be reduced, and then improve the effect of central air-conditioner refrigeration.
Above-mentioned modulating valve 63 and modulating valve 65 are used to regulate the flow of the refrigerant entering into different system.Preferably, above-mentioned refrigerant is salt solution.
The utility model carries out expansion power generation by screw expander to rock gas, in the process expanded, the pressure and temperature of rock gas can decline, by refrigerant (such as salt solution), heat exchange is carried out to the rock gas after cooling again, cold energy is swapped out, the cold energy of recovery is used in the condenser in Organic Rankine Cycle, improves the efficiency of Organic Rankine Cycle.In addition, the cold energy of recovery can also be used for ice making equipment and carry out ice making by the utility model, and is used for by this part cold carrying out heat exchange to the 3rd heat exchanger in central air-conditioning system, thus reduces the load of cooling tower, improves the refrigeration of central air-conditioner.Therefore, the utility model substantially increases the comprehensive utilization ratio of the energy.
Claims (8)
1. a natural valve station energy utilization system, it is characterized in that, described natural valve station energy utilization system comprises one-level gas pipeline, secondary gas pipeline, screw expander, generator, First Heat Exchanger and organic working medium Lang Ken circulation loop;
The entrance of described screw expander is communicated with described one-level gas pipeline, and the outlet of described screw expander is communicated with the gas inlet of described First Heat Exchanger, and this screw expander can drive described electrical power generators;
Described First Heat Exchanger is used for the refrigerant that the refrigerant inlet from this First Heat Exchanger flowed into and rock gas carries out heat exchange, the gas outlet of First Heat Exchanger is communicated with described secondary gas pipeline, and the refrigerant exit of First Heat Exchanger is communicated with the refrigerant inlet of the condenser of described organic working medium Lang Ken circulation loop by the first refrigerant pipeline.
2. one according to claim 1 natural valve station energy utilization system, is characterized in that, described organic working medium Lang Ken circulation loop comprises decompressor, vaporizer, recycle pump and the second heat exchanger;
The outlet of described decompressor is communicated with the first organic working medium entrance of described second heat exchanger, first organic working medium outlet of the second heat exchanger is communicated with the organic working medium entrance of described condenser, the organic working medium outlet of condenser is communicated with the entrance of described recycle pump, circulation delivery side of pump is communicated with the second organic working medium entrance of described second heat exchanger, second organic working medium outlet of the second heat exchanger is communicated with the organic working medium entrance of described vaporizer, the organic working medium outlet of described vaporizer is communicated with the entrance of described decompressor, this vaporizer is used for the hot water from described natural valve station to carry out heat exchange with the organic working medium flowed into from the second heat exchanger.
3. one according to claim 1 natural valve station energy utilization system, is characterized in that, the first described refrigerant pipeline is provided with stop valve.
4. one according to claim 1 natural valve station energy utilization system, it is characterized in that, described natural valve station energy utilization system comprises ice making machine, the refrigerant inlet of described ice making machine is communicated with the refrigerant exit of described First Heat Exchanger by the second refrigerant pipeline, and this ice making machine is used for the refrigerant flowed into from described First Heat Exchanger to cool to be made into ice to water.
5. one according to claim 4 natural valve station energy utilization system, is characterized in that, the second described refrigerant pipeline is provided with stop valve and modulating valve.
6. one according to claim 1 natural valve station energy utilization system, it is characterized in that, described natural valve station energy utilization system also comprises central air-conditioner cooling water circulation loop, described central air-conditioner cooling water circulation loop comprises cooling tower, water pump and the 3rd heat exchanger, the cooling water outlet of described cooling tower is communicated with the entrance of described water pump, described water delivery side of pump is communicated with the cold water inlet of described 3rd heat exchanger, and the cooling water outlet of the 3rd heat exchanger is communicated with the cold water inlet of described cooling tower; The refrigerant inlet of described 3rd heat exchanger is communicated with the refrigerant exit of described First Heat Exchanger by the 3rd refrigerant pipeline, and the 3rd heat exchanger is used for the refrigerant flowed into from described First Heat Exchanger and the cold water flowed into from described water pump to carry out heat exchange.
7. one according to claim 6 natural valve station energy utilization system, is characterized in that, the 3rd described refrigerant pipeline is provided with stop valve and modulating valve.
8. according to the natural valve station of the one in claim 1 to 7 described in any one energy utilization system, it is characterized in that, described refrigerant is salt solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520667838.6U CN205001001U (en) | 2015-08-31 | 2015-08-31 | Natural valve station energy utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520667838.6U CN205001001U (en) | 2015-08-31 | 2015-08-31 | Natural valve station energy utilization system |
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| CN205001001U true CN205001001U (en) | 2016-01-27 |
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| CN201520667838.6U Active CN205001001U (en) | 2015-08-31 | 2015-08-31 | Natural valve station energy utilization system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640241A (en) * | 2016-11-16 | 2017-05-10 | 深圳市燃气集团股份有限公司 | Natural gas pipe network pressure energy power generation and refrigeration house method and device |
| CN107990146A (en) * | 2017-12-26 | 2018-05-04 | 武汉联合立本能源科技有限公司 | A kind of natural gas pressure regulating door station pressure energy recycles utilization system |
-
2015
- 2015-08-31 CN CN201520667838.6U patent/CN205001001U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640241A (en) * | 2016-11-16 | 2017-05-10 | 深圳市燃气集团股份有限公司 | Natural gas pipe network pressure energy power generation and refrigeration house method and device |
| CN107990146A (en) * | 2017-12-26 | 2018-05-04 | 武汉联合立本能源科技有限公司 | A kind of natural gas pressure regulating door station pressure energy recycles utilization system |
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