CN204437715U - Small flow steam line pressure regulating metering device - Google Patents
Small flow steam line pressure regulating metering device Download PDFInfo
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- CN204437715U CN204437715U CN201520100591.XU CN201520100591U CN204437715U CN 204437715 U CN204437715 U CN 204437715U CN 201520100591 U CN201520100591 U CN 201520100591U CN 204437715 U CN204437715 U CN 204437715U
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Abstract
The utility model relates to a kind of coal-seam gas steam line pressure regulating metering device, particularly relates to a kind of small flow steam line pressure regulating metering device.A kind of minitype air-supply pipeline pressure regulating metering device, comprises Inlet ball valve, filter, inlet pressure table, one-level pressure governor, first class pressure table, one-level diffusion valve, second voltage regulation device, secondary pressure table, secondary diffusion valve, exit butterfly valve, Diaphram flowmeter and attached connecting pipeline thereof.This practical small device is arranged between the first road valve of air feed and kitchen range suction valve, be provided with two-stage pressure-regulating device, the supply gas pressure regulating pipeline more delicately can be realized, the arrangement achieves pressure regulation metering in one, there is the advantages such as compact structure, cost is low, quick construction, floor space are little.In addition, also add two-stage Safety relief valve, make it more to stablize, reliably, safety.
Description
Technical field
The utility model relates to a kind of coal-seam gas steam line pressure regulating metering device, particularly relates to a kind of small flow steam line pressure regulating metering device.
Background technique
The history that to take coal as main energy sources be based on China's energy development, single Coal Energy Source not only causes serious environmental pollution, and can restrict China's rapid development of economy.There is abundant coal bed gas resource in China, therefore develops coal bed gas resource, not only can make up coal supply breach, and can improve energy quality.Development of natural gas resource, Optimization of Energy Structure has become the important component part of Chinese energy safety strategy.
But restriction cbm development utilize reason have: the distribution of coal-seam gas gas well away from large-scale industrial district, away from residential belt, big city; The distribution of gas well large size, do not concentrate, source of the gas can not form scale; Well yield is large not, and reserves are limited, can the productive life short.And be difficult to long distance delivery.
Solve the way of coal-seam gas long distance transportation: lay feed channel at a distance, huge investment; Normal temperature high voltage gas cylinder vehicle-mounted transport---" iron and steel transport ", cost is too high; What cost was minimum is the transport of low-temperature atmosphere-pressure liquefaction tank car.The advantage of coal gas gasification: with special LNG tank car, steamer, the rock gas of outlying, desert, marine dispersion, carry out long-distance transportation to market through post liquefaction, it can save great amount of investment than pipeline gas transmission, and convenient and reliable, risk is little, strong adaptability.Efficiency of storage is high, take up an area less, less investment.Be conducive to the balance adjustment of city load.After some popularizations, because civilian tolerance winter use is many, summer grade is few, or because undergoing technological transformation with the maintenance of the chemical plant of gas or natural gas plant itself, or even gas line network is out of order, the imbalance of regular or irregular air feed is caused in capital, and builds the effect that LNG storage tank just can play peak load shifting.The cold recoverable discharged in production process.Low-temperature liquefaction also separable go out the useful by-product of part.LNG can be used as the vehicle fuel of high-quality.Compared with burning gasoline with automobile, it has, and octane value is high, antiknock quality good, burning is complete, exhaust pollution is few, engine life is long, reduce the advantages such as cost of transportation; Production and application is safer.Be conducive to environmental protection, reduce municipal pollution.The advantage that coal gas gasification stores: Large LNG storage tank can reach 7,000 ~ 200,000 cubic metre of LNG Liquefied natural gas, small-sized LNG storage tank can deposit 5 ~ 50 cubic metres of LNG Liquefied natural gas, LNG Liquefied natural gas just again can become gaseous state through simple gasification dress Ge and use, and the rock gas of liquefied storage may be used for urban pipe network and solves a peak regulation difficult problem for Natural Gas Power Plant.It is large that coal gas gasification overcomes long-distance pipeline installation cost, and covering area is limited, and do not possess the shortcoming of storage and peak modulation capacity.
Coal-seam gas is except public industrial application, and civilian is also our main supply object.The metering of coal-seam gas is the valuating basis of our distributing business, and therefore we need the measuring apparatus of precision and cheapness.Along with the development of gas industry, pressure regulating metering device is also in continuous renewal.In recent years, small-flow gas user be on the increase, and the safety of minitype air-supply device, economy, reliability more seem particularly important.And existing pressure regulation for gas supply measuring apparatus is mainly for other types combustion gas design, problems such as there is complex structure, install and use inconvenience, Safety performance is not enough.
Summary of the invention
The utility model mainly in order to solve the pressure regulation metering problem of coal-seam gas steam line to small user, provides a kind of small flow steam line pressure regulating metering device.
The technical solution of the utility model is: a kind of small flow steam line pressure regulating metering device, comprise Inlet ball valve, filter, inlet pressure table, one-level pressure governor, first class pressure table, one-level diffusion valve, second voltage regulation device, secondary pressure table, secondary diffusion valve, exit butterfly valve, Diaphram flowmeter and air duct, on described air duct, be provided with Inlet ball valve, filter, one-level pressure governor, second voltage regulation device, exit butterfly valve, Diaphram flowmeter successively from air feed end to user side; Pipeline between filter and one-level pressure governor is provided with inlet pressure table, the pipeline between one-level pressure governor and second voltage regulation device is provided with on first class pressure table, the pipeline of one-level diffusion valve between second voltage regulation device and exit butterfly valve and is provided with secondary pressure table, secondary diffusion valve.
Compared with prior art, the combined operation of the valve that fallen apart by two pressure governors and two sides, the utility model is when supply gas pressure is higher, and what can ensure downstream user uses gas demand; When supply gas pressure is lower, the pressure loss that pressure regulating metering device brings to downstream user can be avoided.And this device working service is convenient, is widely used in the Small-flow user such as small-sized industry and commerce user and single villa.The supply gas pressure regulating pipeline more delicately can be realized, the arrangement achieves pressure regulation metering in one, there is the advantages such as compact structure, cost is low, quick construction, floor space are little.In addition, also add two-stage Safety relief valve, make it more to stablize, reliably, safety.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
In figure: 1. Inlet ball valve 2. filter 3. inlet pressure table 4. one-level pressure governor 5. first class pressure table 6. one-level diffusion valve 7. second voltage regulation device 8. secondary pressure table 9. secondary diffusion valve 10. exit butterfly valve 11. Diaphram flowmeter.
Embodiment
In order to more clearly technical solutions of the utility model can be understood, below in conjunction with accompanying drawing, the utility model is further illustrated.
As shown in Figure 1, a kind of small flow steam line pressure regulating metering device, comprise Inlet ball valve 1, filter 2, inlet pressure table 3, one-level pressure governor 4, first class pressure table 5, one-level diffusion valve 6, second voltage regulation device 7, secondary pressure table 8, secondary diffusion valve 9, exit butterfly valve 10, Diaphram flowmeter 11 and air duct, described air duct is provided with Inlet ball valve 1, filter 2, one-level pressure governor 4, second voltage regulation device 7, exit butterfly valve 10, Diaphram flowmeter 11 successively from air feed end to user side.Pipeline between filter 2 and one-level pressure governor 4 is provided with inlet pressure table 3, the pipeline between one-level pressure governor 4 and second voltage regulation device 7 is provided with on first class pressure table 5, the pipeline of one-level diffusion valve 6 between second voltage regulation device 7 and exit butterfly valve 10 and is provided with secondary pressure table 8, secondary diffusion valve 9.
In this device, can by carrying out adaptability boost pressure regulation at one-level pressure governor 4 and second voltage regulation device 7 pairs of pressure, one-level diffusion valve 6, secondary diffusion valve 9 can carry out step-down process to pressure, when ensureing that the pressure of air feed is very high or very low, can be regulated and controled voluntarily by regulator, ensure that downstream user atmospheric pressure is stablized, make its outlet pressure be stabilized in 3-5KPa.
Specific embodiment described herein is only to the explanation for example of the utility model spirit, the utility model person of ordinary skill in the field can do described specific embodiment various amendment supplement or adopt similar method to substitute, but spirit of the present utility model can't be departed from or surmount appended claims definition scope.
Claims (1)
1. a small flow steam line pressure regulating metering device, comprise Inlet ball valve (1), filter (2), inlet pressure table (3), one-level pressure governor (4), first class pressure table (5), one-level diffusion valve (6), second voltage regulation device (7), secondary pressure table (8), secondary diffusion valve (9), exit butterfly valve (10), Diaphram flowmeter (11) and air duct, described air duct is provided with Inlet ball valve (1) successively from air feed end to user side, filter (2), one-level pressure governor (4), second voltage regulation device (7), exit butterfly valve (10), Diaphram flowmeter (11), pipeline between filter (2) and one-level pressure governor (4) is provided with inlet pressure table (3), pipeline between one-level pressure governor (4) and second voltage regulation device (7) is provided with first class pressure table (5), the pipeline of one-level diffusion valve (6) between second voltage regulation device (7) and exit butterfly valve (10) is provided with secondary pressure table (8), secondary diffusion valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520100591.XU CN204437715U (en) | 2015-02-12 | 2015-02-12 | Small flow steam line pressure regulating metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520100591.XU CN204437715U (en) | 2015-02-12 | 2015-02-12 | Small flow steam line pressure regulating metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204437715U true CN204437715U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520100591.XU Expired - Fee Related CN204437715U (en) | 2015-02-12 | 2015-02-12 | Small flow steam line pressure regulating metering device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204437715U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114963003A (en) * | 2021-02-19 | 2022-08-30 | 中国科学院微电子研究所 | Gas supply system and gas supply method for semiconductor manufacturing |
-
2015
- 2015-02-12 CN CN201520100591.XU patent/CN204437715U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114963003A (en) * | 2021-02-19 | 2022-08-30 | 中国科学院微电子研究所 | Gas supply system and gas supply method for semiconductor manufacturing |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20160212 |