CN207906036U - The heating system of combustion gas is passed in and out for natural gas Differential pressure power generation - Google Patents
The heating system of combustion gas is passed in and out for natural gas Differential pressure power generation Download PDFInfo
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- CN207906036U CN207906036U CN201820294749.5U CN201820294749U CN207906036U CN 207906036 U CN207906036 U CN 207906036U CN 201820294749 U CN201820294749 U CN 201820294749U CN 207906036 U CN207906036 U CN 207906036U
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- natural gas
- power generation
- differential pressure
- recuperator
- pressure power
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Abstract
The utility model discloses a kind of heating systems passing in and out combustion gas for natural gas Differential pressure power generation, natural gas preheater and natural gas recuperator including being connected to natural gas Differential pressure power generation unit inlet end and outlet side, are serially connected with the water circulating pump and compressor for heat-conducting medium in heated natural gas preheater and natural gas recuperator between the natural gas preheater and the entery and delivery port of natural gas recuperator.The utility model can make full use of heat of compressor, reduce natural gas preheating and re-heat cost, that is, improve generating efficiency and improve efficiency of energy utilization again, energy-saving potential is larger.
Description
Technical field
The utility model is related to a kind of natural gas application apparatus technical fields, and natural gas differential pressure is used for more particularly, to one kind
The heating system of power generation disengaging combustion gas.
Background technology
China's natural gas pipeline mostly uses greatly high-voltage tube mode of movement, and the high-pressure natural gas of conveying is down to middle pressure through voltage regulating station
Standard enters pipeline network of fuel gas in city, then is down to pressure after low pressure for users to use by pressure regulating box or surge tank.Natural gas exists
A large amount of energy will be lost during pressure regulation, can also be constituted a threat to pressure regulation and pipe-line equipment operational safety because of drastically cooling down.
Pressure energy of natural gas is recycled, to improving energy utilization rate, the wasting of resources is reduced, there is preferable economic benefit and society to imitate
Benefit.Since high-pressure natural gas temperature is relatively low（5℃~10℃）If the direct generation of electricity can cause generating efficiency not high, and generate electricity the day after tomorrow
Right temperature degree can be down to -10 DEG C or so, therefore, be both needed to heat natural gas before and after natural gas Differential pressure power generation.Conventional method
It is to be separately connected a natural gas preheater and natural device recuperator in the inlet and outlet of natural gas pressure difference generating set, utilizes electricity
It can be heated, energy consumption is larger.
Utility model content
The purpose of this utility model is to provide a kind of low natural gas Differential pressure power generations that is used for of energy consumption to pass in and out combustion gas
Heating system.
This heating system for the disengaging combustion gas of natural gas Differential pressure power generation provided by the utility model, including be separately connected
It is pre- in the natural gas in the natural gas preheater and natural gas recuperator of natural gas Differential pressure power generation unit inlet end and outlet side
It is serially connected between hot device and the entery and delivery port of natural gas recuperator for being led in heated natural gas preheater and natural gas recuperator
The water circulating pump and compressor of thermal medium.
It is accurately controlled to realize, control is installed on the entery and delivery port of the natural gas preheater and natural gas recuperator
Valve processed.
To reduce heat energy loss, the inlet, outlet end of the natural gas Differential pressure power generation unit is with natural gas preheater and naturally
Gas recuperator is by keeping the temperature natural gas line connection.
To reduce heat energy loss, lead between the natural gas preheater and natural gas recuperator and water circulating pump and compressor
Cross attemperater connection.
To reduce cost, the water circulating pump and compressor it is each there are one, the natural gas preheater and natural gas re-heat
The water outlet of device is attempted by the water inlet of compressor, and the water inlet of the natural gas preheater and natural gas recuperator is attempted by
On the water outlet of water circulating pump.
For convenience of the independent regulation and control of natural gas preheater and natural gas recuperator, the water circulating pump and compressor respectively have two
It is a and be serially connected in respectively between the inlet and outlet of natural gas preheater, the inlet and outlet of natural gas recuperator.
The utility model is preheated by sending heat of compressor to natural gas preheater and natural gas recuperator in natural gas
In device, the natural gas of hot water and low temperature exchanges heat, and the natural gas after heat exchange is heated, and send to natural gas Differential pressure power generation unit
After carry out Differential pressure power generation；Natural gas temperature after power generation reduces, and in natural gas recuperator, the natural gas of hot water and low temperature carries out
Heat exchange, the natural gas after heating enter urban pipe network, and the hot water after heat exchange enters compressor, recycles, it is no longer necessary to utilize
Electric energy heats natural gas, and energy consumption is small；In addition, the heat that compressor generates is taken away by recirculated water, can reduce compression
The running temperature of machine improves the compressor service life, that is, improves generating efficiency and improve efficiency of energy utilization again.The utility model energy
Heat of compressor is made full use of, natural gas preheating is reduced and re-heat cost, energy-saving potential is larger.
Description of the drawings
Fig. 1 is the structural schematic diagram one of the utility model.
Fig. 2 is the structural schematic diagram two of the utility model.
Label and corresponding component name shown in figure are：1, natural gas preheater；2, natural gas Differential pressure power generation machine
Group；3, natural gas recuperator；4, water circulating pump；5, compressor；6, control valve；7, natural gas line is kept the temperature；8, attemperater；
11, thermal conductive water pipe；12, heat conduction Gas Pipe.
Specific implementation mode
Embodiment one
It will be seen from figure 1 that this heating system for the disengaging combustion gas of natural gas Differential pressure power generation of the utility model, including
Natural gas preheater 1, natural gas Differential pressure power generation unit 2, natural gas recuperator 3, water circulating pump 4, compressor 5 and several control valves
6, thermal conductive water pipe 11 and heat conduction Gas Pipe 12, natural gas preheating are arranged in natural gas preheater 1 and natural gas recuperator 3
In device 1 between the outlet side of heat conduction Gas Pipe 12 and the inlet end of natural gas Differential pressure power generation unit 2, natural gas Differential pressure power generation unit
It is connected to by keeping the temperature natural gas line 7 between 2 outlet side and the inlet end of heat conduction Gas Pipe 12 in natural gas recuperator 3,
Between the water outlet and the water inlet of compressor 5 of thermal conductive water pipe 11 in natural gas preheater 1 and natural gas recuperator 3, compress
Between the water outlet and the water inlet of water circulating pump 4 of machine 5, the water outlet of water circulating pump 4 and natural gas preheater 1 and natural gas it is multiple
It is connected to by attemperater 8 between the water inlet of thermal conductive water pipe 11 in hot device 3, control valve 6 is mounted on natural gas preheater 1
On the entery and delivery port of the thermal conductive water pipe 11 in natural gas recuperator 3, water circulating pump 4 is opened, and driving compressor 5 generates remaining
Heat is delivered to by attemperater 8 in natural gas preheater 1 and natural gas recuperator 3, the natural gas in heat conduction Gas Pipe 12 and
Hot water in thermal conductive water pipe 11 exchanges heat in natural gas preheater 1 and natural gas recuperator 3.
Embodiment two
Figure it is seen that the difference is that, the water circulating pump 4 and compressor 5 of the present embodiment are each with embodiment one
There are two and the thermal conductive water pipe 11 that is serially connected in respectively by attemperater 8 in natural gas preheater 1 inlet and outlet, day
Between the inlet and outlet of thermal conductive water pipe 11 in right gas recuperator 3.
Claims (6)
1. a kind of heating system for the disengaging combustion gas of natural gas Differential pressure power generation, including it is connected to natural gas Differential pressure power generation machine
Group（2）The natural gas preheater of inlet end and outlet side（1）With natural gas recuperator（3）, it is characterised in that：In the natural gas
It is serially connected between preheater and the entery and delivery port of natural gas recuperator in heated natural gas preheater and natural gas recuperator
The water circulating pump of heat-conducting medium（4）And compressor（5）.
2. the heating system according to claim 1 for the disengaging combustion gas of natural gas Differential pressure power generation, it is characterised in that：Institute
It states and control valve is installed on the entery and delivery port of natural gas preheater and natural gas recuperator（6）.
3. the heating system according to claim 1 for the disengaging combustion gas of natural gas Differential pressure power generation, it is characterised in that：It is described
The inlet, outlet end of natural gas Differential pressure power generation unit is with natural gas preheater and natural gas recuperator by keeping the temperature natural gas line
（7）Connection.
4. the heating system according to claim 1 for the disengaging combustion gas of natural gas Differential pressure power generation, it is characterised in that：It is described
Pass through attemperater between natural gas preheater and natural gas recuperator and water circulating pump and compressor（8）Connection.
5. the heating system according to any one of claims 1 to 4 for the disengaging combustion gas of natural gas Differential pressure power generation, feature exists
In：The water circulating pump and compressor it is each there are one, the water outlet of the natural gas preheater and natural gas recuperator is attempted by
On the water inlet of compressor, the water inlet of the natural gas preheater and natural gas recuperator is attempted by the water outlet of water circulating pump
On.
6. the heating system according to any one of claims 1 to 4 for the disengaging combustion gas of natural gas Differential pressure power generation, feature exists
In：The water circulating pump and compressor respectively there are two and be serially connected in the inlet and outlet, natural of natural gas preheater respectively
Between the inlet and outlet of gas recuperator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820294749.5U CN207906036U (en) | 2018-03-02 | 2018-03-02 | The heating system of combustion gas is passed in and out for natural gas Differential pressure power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820294749.5U CN207906036U (en) | 2018-03-02 | 2018-03-02 | The heating system of combustion gas is passed in and out for natural gas Differential pressure power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207906036U true CN207906036U (en) | 2018-09-25 |
Family
ID=63560417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820294749.5U Active CN207906036U (en) | 2018-03-02 | 2018-03-02 | The heating system of combustion gas is passed in and out for natural gas Differential pressure power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207906036U (en) |
-
2018
- 2018-03-02 CN CN201820294749.5U patent/CN207906036U/en active Active
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