CN207975475U - A kind of natural gas lofty tone station - Google Patents
A kind of natural gas lofty tone station Download PDFInfo
- Publication number
- CN207975475U CN207975475U CN201820109019.3U CN201820109019U CN207975475U CN 207975475 U CN207975475 U CN 207975475U CN 201820109019 U CN201820109019 U CN 201820109019U CN 207975475 U CN207975475 U CN 207975475U
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- Prior art keywords
- natural gas
- pressure regulator
- regulator valve
- drier
- pressure
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Abstract
The utility model is related to a kind of natural gas transportation distribution systems, more particularly to a kind of natural gas is stood to a high-profile, including drier, pressure regulator valve and gas flow meter, drier is located at before pressure regulator valve, it is additionally provided with tubular heater before pressure regulator valve, for being heated to the natural gas in pressure piping before pressure regulator valve, the combustion gas feed pipe of the heating furnace is connected to the heating furnace with the middle pressure pipeline after pressure regulator valve, and the control valve of control heating furnace fuel gas supply amount is provided on feed pipe.The utility model passes through heating furnace, the natural gas before pressure regulator valve can be heated, the whole temperature for promoting natural gas, ensure that the temperature of the natural gas after being depressured by pressure regulator valve will not be too low, and under the transmission of natural gas self heat effect, temperature inside and outside pressure regulator valve is almost the same, reduces the case where pressure regulator valve influences service life because of internal/external heating unevenness.
Description
Technical field
The utility model is related to a kind of natural gas transportation distribution system, more particularly to a kind of natural gas is stood to a high-profile.
Background technology
During natural gas transportation, long-distance transport through frequently with high-pressure transport, air pressure often 1.6~4.0MPa it
Between, it can be guaranteed so as to the flow velocity of natural gas, and the gas pressure needed for the terminal user of natural gas is smaller, generally exists
Between 0.01~0.8MPa, therefore needed by pressure regulation during natural gas is sent from conveyance conduit to terminal user.Naturally
The regulating-metering station of gas is exactly by the system of the high-pressure natural gas pressure regulation in gas pipeline to required pressure, and in the mistake of pressure regulation
In journey and have the function of that metering, regulating-metering station generally comprise station and low-key station to a high-profile, station is generally located on appendix to a high-profile
Point defeated place in road, by high-pressure natural gas pressure regulation to middle pressure natural gas；Low-key station is generally located on terminal, by middle pressure natural gas pressure regulating
To pressure needed for terminal user.
Station includes sequentially connected drier, pressure regulator valve and flowmeter to existing natural gas to a high-profile, and high-pressure natural gas is passing through
Crossing under the pressure regulation effect of pressure regulator valve becomes middle pressure natural gas, can absorb a large amount of heat in this process；Again due in natural gas
Containing some gas phase vapor, gas phase vapor saturated steam water content when temperature is higher（That is every kilogram of gas contains
Water）Saturated steam water content is high when than low temperature, and the gas phase water being precipitated in natural gas is easy in the case of temperature decrease,
Ice occurs in the inside of pressure regulator valve and blocks up phenomenon, it is therefore desirable to which drier is set before pressure regulator valve to absorb its internal water
Point, but the gas phase water in natural gas can not be completely removed after setting drier, still when the front and back pressure difference of pressure regulator valve is excessive
It will appear ice and block up phenomenon.
In the patent of invention that Authorization Notice No. is CN103216700B, a kind of natural gas line noise reduction, anti-icing is disclosed
Stifled and cold energy use device is provided with flat heat exchange pipe, by changing in the front and rear pipes and pressure regulator valve of pressure regulator valve in the apparatus
The front and rear pipes of hot flat tube heating pressure regulator valve and pressure regulator valve prevent pressure regulator valve from ice occur and block up phenomenon.Disadvantage is that gas
Quickly, therefore flat heat exchange pipe is not obvious the heating effect of the natural gas in pipeline to flow velocity in pipeline, mainly to defeated
Pipeline and pressure regulator valve is sent to be heated, and with the pressure of pressure regulation valve regulation gas, the internal temperature of pressure regulator valve is relatively low, and external
Temperature is higher, can form the more apparent temperature difference, larger to the aging effects of pressure regulator valve.
Utility model content
The purpose of this utility model is to provide a kind of natural gas lofty tone station, solves pressure regulator valve internal/external heating in the prior art
Non-uniform problem.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of natural gas lofty tone station, including drier, pressure regulator valve and gas flow meter, drier is located at before pressure regulator valve,
Tubular heater is additionally provided with before pressure regulator valve, the heating furnace is for adding the natural gas in pressure piping before pressure regulator valve
Heat, the combustion gas feed pipe of the heating furnace are connected to the middle pressure pipeline after pressure regulator valve, and control is provided on combustion gas feed pipe and is added
The control valve of hot stove fuel gas supply amount.
By using above-mentioned technical proposal, tubular heater can heat the natural gas quickly flowed, before pressure regulator valve
Natural gas is heated, and to improve the natural gas temperature after pressure regulator valve pressure regulation, natural gas is avoided to be formed in pressure regulator valve
Ice blocks up phenomenon；And under the transmission of natural gas self heat effect, the temperature inside and outside pressure regulator valve is almost the same, reduces pressure regulation
The case where valve influences service life because of internal/external heating unevenness；In addition, tubular heater is using the mesolow after pressure regulation valve regulation
Natural gas is as fuel of heat supply, simple and convenient easy to drawing materials.
Preferably, heating furnace is located at before drier.
By using above-mentioned technical proposal, drier is arranged after heating furnace, into the natural gas temperature of drier
Higher, the drier of natural gas is the device that natural gas is dried purification in a kind of adsorption capacity using molecular sieve, compared with
The adsorption capacity of molecular sieve is stronger at high temperature, and drying effect is more preferable.
Preferably, the pipeline after heating furnace is divided into two or more, each tube road is gentle comprising drier, pressure regulator valve
Flowmeter body.
By using above-mentioned technical proposal, each tube road after heating furnace can work independently, and can be spare mutually
It replaces.
Preferably, being provided with and communicated with maintenance branch pipe between the drier and pressure regulator valve of each bye-pass, maintenance branch pipe is every
Shut-off valve is provided between a adjacent bye-pass, and the forward and backward of the drier of each bye-pass is provided with shut-off valve, and dry
The forward and backward shut-off valve of device is located at before maintenance branch pipe.
It can pass through closing fault when the drier of a certain bye-pass blocks by using above-mentioned technical proposal
Shut-off valve, the shut-off valve overhauled on branch pipe opened towards on defective pipe on pipeline before and after drier, in this way other branch pipes
Natural gas of the road after filtration drying can enter in defective pipe, while also be capable of the drier of trouble shooting pipeline, no
Defective pipe gas supply can be caused to influence.
Preferably, also including odorization machine, the outlet pipe and the pipeline connection after pressure regulator valve of odorization machine.
By using above-mentioned technical proposal, odorization machine can add foul smell to the natural gas filling in natural gas line, make natural
Gas has stink, natural gas leakage occurs in terminal or transmission process in this way, can be perceived by people at the first time.
Preferably, gas flow is calculated as gas turbine meter.
Preferably, the front and rear ends of pressure regulator valve are both provided with pressure gauge and thermometer.
By using above-mentioned technical proposal, the pressure and temperature before and after pressure regulator valve can be accurately monitored, in time adjustment heating
The heating temperature of stove and the regulating degree of pressure regulator valve.
Preferably, the front and rear ends of drier are both provided with pressure gauge.
It, can be according to the pressure difference of pressure gauge before and after drier, accurate judgement drier by using above-mentioned technical proposal
Whether block.
In conclusion the utility model has the following technical effects：
1. by heating furnace, the natural gas before pressure regulator valve can be heated, the whole temperature for promoting natural gas ensures passing through
The temperature for crossing the natural gas after pressure regulator valve decompression will not be too low, and under the transmission of natural gas self heat effect, pressure regulator valve
Inside and outside temperature is almost the same, reduces the case where pressure regulator valve influences service life because of internal/external heating unevenness；
2. heating furnace use pressure regulator valve pressure regulation after natural gas be used as fuel, give pressure regulator valve preceding pipeline in natural gas into
Row heating, simply and easily solves the problems, such as furnace fuel supply.
Description of the drawings
Fig. 1 is the pipeline arrangement general flow chart of the present embodiment.
In figure, 1, drier；2, pressure regulator valve；3, gas flowmeter；4, heating furnace；41, combustion gas feed pipe；42, control valve；
5, branch pipe is overhauled；6, shut-off valve；7, odorization machine.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.The identical attached drawing of wherein identical parts
Label indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "upper", "lower", " bottom
Face " and " top surface " refer to that the direction in attached drawing, word "inner" and "outside" are referred respectively to towards or away from particular elements geometry
The direction at center.
As shown in Figure 1, a kind of natural gas is stood to a high-profile, including the heating furnace for setting gradually and being connected by pipeline from front to back
4, drier 1,2 and gas flow meter 3 of pressure regulator valve, are high pressure gas pipeline before heating furnace 4, air pressure 1.6~4.0MPa it
Between, it is heated after natural gas by drier 1 drying after removal natural gas in moisture, later pass through pressure regulator valve 2 adjust
High-pressure natural gas is adjusted to middle pressure, is sent to low-key station later by the pressure of natural gas.Pressure regulator valve 2, will be high during pressure regulation
Pressure natural gas is adjusted to middle pressure natural gas, this will absorb a large amount of heat in the process, once the temperature of pressure regulator valve 2 is too low, naturally
Vapor in gas will be condensed and can be frozen, and generating ice in the exit of pressure regulator valve 2 blocks up phenomenon, heating furnace 4 and drier 1
Setting be exactly in order to prevent ice block up phenomenon.Drier 1 is for the moisture in dry natural gas, and heating furnace 4 is to pass through heating
Natural gas promotes the bulk temperature of natural gas, natural gas is prevented to be down to freezing point.Pass through the whole temperature for promoting natural gas of heater 4
Degree, enable to pressure regulator valve 2 export natural gas also have certain temperature, heat transmit under the action of pressure regulator valve 2 from it is interior to
Outer temperature is all relatively uniform.
The drier of diversified forms and model can be used in drier 1, and drier 1 is using molecular-sieve type in the present embodiment
Drier is the prior art, can refer to the patent application application No. is 201510246058.9.Molecular-sieve type drier is to utilize
Natural gas is dried the device of purification in the adsorption capacity of molecular sieve, and the adsorption capacity of molecular sieve is more at a higher temperature
By force, drying effect is more preferable, therefore the setting of drier 1 can be reached better drying effect after heating furnace 4.Certainly, such as
Drier 1 can also be arranged before heating furnace 4 using the drying mode of other forms for fruit drier 1.
For heating furnace 4 using tubular heater, it is CN105180653B, tubular type that concrete structure, which can refer to Authorization Notice No.,
Heating furnace is capable of the gas or liquid of effectively hot high velocity, it is preferable that the combustion gas feed pipe 41 and pressure regulator valve of heating furnace 4
Middle pressure pipeline connection after 2, fuel of the middle pressure natural gas as heating furnace 4 after the adjusting of such pressure regulator valve 2, gives heating furnace 4
Heat supply is gathered materials on the spot.The control valve 42 of control fuel gas supply amount can be set on combustion gas feed pipe 41, tempering can also be set
Valve etc..
Pipeline after heating furnace 4 can be divided into two or two or more pipelines, later each bye-pass convergence, every
Include drier 1,2 and gas flow meter 3 of pressure regulator valve on pipeline, the diameter of each pipeline can be reduced in this way, share transport
Pressure, while in the case of a bye-pass failure, the work of other pipelines will not be influenced, it ensure that natural gas was stood to a high-profile
Continue pressure regulation transport capacity.
Since the probability that drier 1 breaks down in natural gas is stood to a high-profile is higher, and drier 1 once breaks down,
Entire tap line will be stopped, can be in the drier 1 and pressure regulator valve of each bye-pass to avoid such case
Maintenance branch pipe 5 is provided with and communicated between 2, maintenance branch pipe 5 is both provided with shut-off valve 6 between each adjacent bye-pass, each
The forward and backward of drier 1 is also equipped with shut-off valve 6, and the forward and backward shut-off valve 6 of each drier 1 is located at before maintenance branch pipe 5.When
When the drier 1 of defective pipe breaks down, the forward and backward shut-off valve 6 of closing fault pipeline drier 1 is opened on maintenance branch pipe 5
Other tap lines lead to the shut-off valve 6 of defective pipe, ensure that natural gas of other tap lines after the drying of drier 1 enters
Defective pipe, it is ensured that defective pipe is also at operating status, reduces influence of the drier 1 to whole system, while also can
It is enough that the drier 1 of defective pipe is overhauled.
The common failure of drier 1 is pipeline blockage, judges whether drier 1 blocks for convenience, can be dry
Pressure gauge is arranged in the front and rear ends of dry device 1, and the stopping state of drier 1, pressure are judged by the pressure difference of front and back pressure gauge
Difference is bigger, and the possibility for occurring blocking is bigger.
The front and rear ends of pressure regulator valve 2 can also be respectively provided with pressure gauge and thermometer.According to the thermometer measure after pressure regulator valve 2
As a result, the heating effect of heating furnace 4 to be adjusted, heating furnace 4 can be suitably reduced if temperature after pressure regulator valve 2 is higher
Heating temperature, in order to avoid cause to waste；If the temperature after pressure regulator valve 2 is told somebody what one's real intentions are, the heating temperature of heating furnace 4 should be increased in time
Degree, in case ice occur blocks up phenomenon.Pressure gauge is to measure the forward and backward pipeline pressure of pressure regulator valve 2, is wanted with meeting the pressure after pressure regulation
It asks.
In addition station can also include odorization machine 7 to natural gas to a high-profile, during the outlet pipe of odorization machine 7 is after pressure regulator valve 2
Press pipeline connection, be most better than each bypass line summarize place after.Odorization machine 7 can add the natural gas filling in natural gas line
Foul smell makes natural gas have stink, natural gas leakage occurs in terminal or transmission process in this way, can be at the first time by people
Discovered.
Gas turbine meter can be used in gas flowmeter 3, is suitble to the measurement of the high flow rate gas flow of mesohigh.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (8)
1. a kind of natural gas is stood to a high-profile, including drier（1）, pressure regulator valve（2）And gas flow meter（3）, drier（1）Positioned at tune
Pressure valve（2）Before, which is characterized in that pressure regulator valve（2）It is additionally provided with tubular heater before（4）, the heating furnace（4）For right
Pressure regulator valve（2）Natural gas in preceding pressure piping is heated, the heating furnace（4）Combustion gas feed pipe（41）With pressure regulator valve
（2）Middle pressure pipeline connection later, combustion gas feed pipe（41）On be provided with control heating furnace（4）The control valve of fuel gas supply amount
（42）.
2. a kind of natural gas according to claim 1 is stood to a high-profile, which is characterized in that heating furnace（4）Positioned at drier（1）It
Before.
3. a kind of natural gas according to claim 2 is stood to a high-profile, which is characterized in that heating furnace（4）Pipeline later is divided into
Two or more, each tube road includes drier（1）, pressure regulator valve（2）And gas flow meter（3）.
4. a kind of natural gas according to claim 3 is stood to a high-profile, which is characterized in that the drier of each bye-pass（1）With
Pressure regulator valve（2）Between be provided with and communicated with maintenance branch pipe（5）, overhaul branch pipe（5）It is provided with and cuts between each adjacent bye-pass
Only valve（6）, and the drier of each bye-pass（1）Forward and backward be provided with shut-off valve（6）, and drier（1）Forward and backward cut-off
Valve（6）Positioned at maintenance branch pipe（5）Before.
5. a kind of natural gas according to claim 4 is stood to a high-profile, which is characterized in that also include odorization machine（7）, odorization machine
（7）Outlet pipe and pressure regulator valve（2）Pipeline connection later.
6. a kind of natural gas according to claim 5 is stood to a high-profile, which is characterized in that gas flowmeter（3）For gas-turbine
Flowmeter.
7. a kind of natural gas according to claim 6 is stood to a high-profile, which is characterized in that pressure regulator valve（2）Front and rear ends be all provided with
It is equipped with pressure gauge and thermometer.
8. a kind of natural gas according to claim 7 is stood to a high-profile, which is characterized in that drier（1）Front and rear ends be all provided with
It is equipped with pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820109019.3U CN207975475U (en) | 2018-01-22 | 2018-01-22 | A kind of natural gas lofty tone station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820109019.3U CN207975475U (en) | 2018-01-22 | 2018-01-22 | A kind of natural gas lofty tone station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207975475U true CN207975475U (en) | 2018-10-16 |
Family
ID=63770021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820109019.3U Expired - Fee Related CN207975475U (en) | 2018-01-22 | 2018-01-22 | A kind of natural gas lofty tone station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207975475U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167647A (en) * | 2018-01-22 | 2018-06-15 | 北京东方通捷燃气有限责任公司 | A kind of natural gas is stood to a high-profile |
-
2018
- 2018-01-22 CN CN201820109019.3U patent/CN207975475U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167647A (en) * | 2018-01-22 | 2018-06-15 | 北京东方通捷燃气有限责任公司 | A kind of natural gas is stood to a high-profile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181016 Termination date: 20210122 |