CN213983018U

CN213983018U - Natural gas pressure regulating batch meter

Info

Publication number: CN213983018U
Application number: CN202022268779.9U
Authority: CN
Inventors: 肖芳; 高广飞; 王伟
Original assignee: Cangzhou Tianlong Burning Equipment Co ltd
Current assignee: Cangzhou Tianlong Burning Equipment Co ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-08-17
Anticipated expiration: 2030-10-13

Abstract

The utility model discloses a natural gas pressure regulating metering box, the explosion-proof spring is arranged at one corner position of the inner wall of the outer shell of the metering box, one end of the inner wall of the outer shell of the metering box is fixedly connected with an inlet manifold, one end of the inlet manifold is provided with a first flange ball valve, the other end of the inlet manifold is fixedly connected with a pressure measuring device base, the top end of the pressure measuring device is provided with a pressure measuring device, one end of the first flange ball valve is fixedly connected with a first pressure regulator front pipe, the structure of the utility model is provided with an inlet manifold, an outlet manifold, a discharge pipe, a first flange ball valve and a second flange ball valve, all the bold connectors and the connection parts of all the bearing parts are checked through different pressures between the inlet manifold, the outlet manifold and the discharge pipe, no leakage, no visible deformation and no abnormal sound in the test process are generated during the natural gas transportation, because the whole pipeline is a double-path structure, the measuring device is convenient for measuring when the natural device is conveyed in a pipeline.

Description

Natural gas pressure regulating batch meter

Technical Field

The utility model relates to a natural gas technical field specifically is natural gas pressure regulating batch meter.

Background

Natural gas is a mixture of hydrocarbon and non-hydrocarbon gas naturally accumulated in a stratum, in petroleum geology, generally refers to oil field gas and gas field gas, mainly exists in oil fields and natural gas fields, and also exists in coal beds in small quantities, the natural gas is mainly used as fuel and can produce carbon black, chemicals and liquefied petroleum gas, propane and butane produced by the natural gas are important raw materials of modern industry, and the pressure regulating metering detection is required to be carried out on the natural gas when the natural gas is generally used;

however, the conventional natural gas pressure regulating metering box is lack of a component for full check during natural gas conveying, so that the natural gas is easy to leak during conveying, and therefore, for the situations, the natural gas pressure regulating metering box is necessary to overcome the defects in the prior art for avoiding the technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a natural gas pressure regulating batch meter, what provide among the above-mentioned background art can effectively be solved lacks the subassembly that spills full inspection when carrying the natural gas, leads to the natural gas leakage phenomenon's problem easily to appear when carrying.

In order to achieve the above object, the utility model provides a following technical scheme: the natural gas pressure regulating metering box comprises a metering box shell, wherein an explosion-proof spring is arranged at one corner position of the inner wall of the metering box shell, one end of the inner wall of the metering box shell is fixedly connected with an inlet manifold, one end of the inlet manifold is provided with a first flange ball valve, the other end of the inlet manifold is fixedly connected with a pressure measuring device base, the top end of the pressure measuring device base is provided with a pressure measuring device, one end of the first flange ball valve is fixedly connected with a first pressure regulator front pipe, one end of the first pressure regulator front pipe is fixedly connected with a filter, one end of the filter is fixedly connected with a seamless pipe, one end of the seamless pipe is clamped with a pipe cap, and the outer end of the seamless pipe is fixedly connected with an outlet manifold;

gaseous ultrasonic flowmeter is installed to export manifold outer end, export manifold outer end is located gaseous ultrasonic flowmeter one side position department and installs IC-card prepayment controller, export manifold one end avris position department fixedly connected with diffuses the pipe, export manifold one end is located diffuse pipe one side position department fixedly connected with second voltage regulator front-tube, the voltage regulator is installed to second voltage regulator front-tube one end, the fixed fixedly connected with voltage regulator rear tube of voltage regulator one end, second flange ball valve is installed to voltage regulator rear-tube one end, there is second flange ball valve one end fixedly connected with connecting pipe, IC-card prepayment controller and voltage regulator input all with external power source output electric connection.

Preferably, batch meter shell one end is provided with the door plant, and the door plant adopts thick 2m cold-rolled steel sheet, hem interface and strengthening rib interface welding around the door.

Preferably, the pressure regulator is one-stage pressure regulating, the pressure of the pipeline is designed to be 0.4.Pa, and the whole pipeline is of a double-path structure.

Preferably, a thread groove is formed in one end of the seamless pipe, and the inner wall of the thread groove is in threaded connection with the outer end of the pipe cap.

Preferably, the bottom frame is placed to batch meter shell bottom, bottom frame one end is passed through fastening bolt and batch meter shell threaded connection, fish scale hole has been seted up to batch meter shell one end top position department symmetry, and batch meter shell one end is located fish scale hole one side position department and has seted up the Y-shaped key hole.

Preferably, the underframe is welded by thickened standard channel steel.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:

1. be provided with the import header, the export header, diffuse the pipe, first flange ball valve and second flange ball valve, through the import header, the export header and diffuse the pressure of difference between the pipe and make all hank connector and the connection site to all bearing parts and examine, no seepage when making the natural gas carry, no visible deformation and test in-process are free from abnormal sound, because whole pipeline is double-circuit structure, when being convenient for the natural ware is carried in the pipeline, more convenient measures.

2. Be provided with seamless pipe, explosion-proof spring, pipe cap and manometer, when airtight test, be convenient for seal the seamless pipe through the pipe cap to through the seamless pipe, be convenient for to all welded joint and adapting unit let out full check, thereby possess higher gas tightness when making the natural gas carry in the pipeline.

3. Be provided with fastening bolt, fish scale hole and door plant, through the fastening bolt of chassis outer end, be convenient for dismantle the batch meter shell, this is convenient for make things convenient for the staff to install the maintenance to through the fish scale hole, be convenient for carry out the heat conduction to the heat that batch meter shell inside work produced, simultaneously through the door plant of batch meter shell one end, because hem interface and strengthening rib interface welding are firm all around to the door plant, avoid the door plant fan shake phenomenon.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic plan view of the voltage regulator of the present invention;

FIG. 3 is a schematic plan view of a seamless tube according to the present invention;

reference numbers in the figures: 1. an inlet manifold; 2. a first flange ball valve; 3. a first voltage regulator front tube; 4. a filter; 5. a connecting pipe; 6. an outlet manifold; 7. a second flanged ball valve; 8. a gas ultrasonic flow meter; 9. a voltage regulator rear tube; 10. an IC card prepayment controller; 11. a voltage regulator; 12. a chassis; 13. a batch tank housing; 14. a second voltage regulator front tube; 15. a diffusing pipe; 16. an explosion-proof spring; 17. a seamless pipe; 18. a pipe cap; 19. a pressure gauge base; 20. a pressure gauge; 21. fastening a bolt; 22. fish scale holes; 23. a fork-shaped key hole.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figures 1-3, the utility model provides a technical scheme, a natural gas pressure regulating batch meter, which comprises a batch meter shell 13, which is convenient for opening the batch meter shell 13, one end of the batch meter shell 13 is provided with a door plate, the door plate adopts a cold rolled steel plate with the thickness of 2m, a hem interface and a reinforcing rib interface are welded around the door, an explosion-proof spring 16 is arranged at one corner position of the inner wall of the batch meter shell 13, one end of the inner wall of the batch meter shell 13 is fixedly connected with an inlet manifold 1, one end of the inlet manifold 1 is provided with a first flange ball valve 2, the other end of the inlet manifold 1 is fixedly connected with a pressure measuring base 19, the top end of the pressure measuring base 19 is provided with a pressure measuring device 20, one end of the first flange ball valve 2 is fixedly connected with a first pressure regulator front pipe 3, one end of the first pressure regulator front pipe 3 is fixedly connected with a filter 4, one end of the filter 4 is fixedly connected with a seamless pipe 17, one end of the seamless pipe 17 is clamped with a pipe cap 18, the installation of the pipe cap 18 is convenient, a thread groove is arranged in one end of the seamless pipe 17, the inner wall of the thread groove is in threaded connection with the outer end of the pipe cap 18, and the outer end of the seamless pipe 17 is fixedly connected with the outlet header 6;

the outer end of the outlet manifold 6 is provided with a gas ultrasonic flowmeter 8, the outer end of the outlet manifold 6 is provided with an IC card prepayment controller 10 at the position of one side of the gas ultrasonic flowmeter 8, the lateral position of one end of the outlet manifold 6 is fixedly connected with a diffusing pipe 15, one end of the outlet manifold 6 is fixedly connected with a second pressure regulator front pipe 14 at the position of one side of the diffusing pipe 15, one end of the second pressure regulator front pipe 14 is provided with a pressure regulator 11, the operation of the pressure regulator 11 is convenient, the pressure regulator 11 is used for first-stage pressure regulation, and pipeline design pressure 0.4Pa, whole pipeline is the double-circuit structure, and 11 one ends of pressure regulator fixedly connected with pressure regulator back tube 9, and second flange ball valve 7 is installed to 9 one ends of pressure regulator back tube, has 7 one ends fixedly connected with connecting pipe 5 of second flange ball valve, and IC-

card prepayment controller

10 and 11 input of pressure regulator all with external power supply output electric connection.

Chassis 12 has been placed to batch meter shell 13 bottom, is convenient for consolidate chassis 12, and chassis 12 adopts thickening standard channel-section steel welding, and fastening bolt 21 and batch meter shell 13 threaded connection are passed through to chassis 12 one end, and fish scale hole 22 has been seted up to batch meter shell 13 one end top position department symmetry, is convenient for dispel the heat to batch meter shell 13, and batch meter shell 13 one end is located fish scale hole 22 one side position department and has seted up forked key hole 23.

The utility model discloses a theory of operation and use flow: firstly, all branchjoint joints and connecting parts of all pressure-bearing parts are checked due to different pressures among an inlet manifold 1, an outlet manifold 6 and a relief pipe 15, the system is used for primary pressure regulation, the inlet pressure is 0.3MPa, the outlet pressure is increased by-8 kPa, DN100, the flow is 50r/h, the relief pressure is 5-12kPa, the cutting pressure is 8.5-13.6kPa and the pipeline design pressure is 0.4Pa, when a strength test and an air tightness test are carried out, the pressure is slowly increased according to 3/27791-2011, and the pressure is maintained to be not less than 30uin after the pressure reaches 0.6 MPa; then the pressure is reduced to 0.4MPa, so that the natural gas is not leaked and deformed in a visible way during the transportation and is not subjected to abnormal noise in the test process, the whole pipeline has a double-path structure, one is used and the other is prepared, and the inlet adding and metering and IC card prepayment controller 10 is arranged;

secondly, during the airtight test, the seamless pipe 17 is conveniently sealed through the pipe cap 18, and the seamless pipe 17 is used, so that the natural gas has higher airtightness when being conveyed in a pipeline, the airtight test is carried out by using compressed air or inert gas, during the test, the pipelines of the pressure regulator 11, the first pressure regulator front pipe 3 and the pressure regulator rear pipe 9 are respectively pressurized, the pressure slowly rises, the pressure in front of the pressure regulator reaches 0.4MPa, the pressure behind the pressure regulator reaches 20Pa, all welding joints and connecting parts are fully checked by using leakage detection liquid, no leakage is caused by the check, and the pressure is maintained for no less than 60 min;

then, fastening bolt 21 through chassis 12 outer end is convenient for dismantle batch meter shell 1, and this meaning is convenient for make things convenient for the staff to install the maintenance to through fish scale hole 22, the heat that produces of 1 inside work of batch meter shell of being convenient for carries out the heat conduction, simultaneously through the door plant of 1 one end of batch meter shell, because hem interface and strengthening rib interface welding are firm all around to the door plant, avoid the door plant fan shake phenomenon.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Natural gas pressure regulating batch meter, including batch meter shell (13), its characterized in that: an explosion-proof spring (16) is arranged at one corner of the inner wall of the metering box shell (13), one end of the inner wall of the metering box shell (13) is fixedly connected with an inlet manifold (1), one end of the inlet manifold (1) is provided with a first flange ball valve (2), the other end of the inlet manifold (1) is fixedly connected with a pressure measuring device base (19), a pressure measuring device (20) is arranged at the top end of the pressure measuring device base (19), one end of the first flange ball valve (2) is fixedly connected with a first pressure regulator front pipe (3), one end of the first pressure regulator front pipe (3) is fixedly connected with a filter (4), one end of the filter (4) is fixedly connected with a seamless pipe (17), one end of the seamless pipe (17) is clamped with a pipe cap (18), and the outer end of the seamless pipe (17) is fixedly connected with an outlet manifold (6);

the outer end of the outlet manifold (6) is provided with a gas ultrasonic flowmeter (8), the outer end of the outlet manifold (6) is provided with an IC card prepayment controller (10) at one side of the gas ultrasonic flowmeter (8), a diffusing pipe (15) is fixedly connected at the side position of one end of the outlet header (6), one end of the outlet header (6) is fixedly connected with a second pressure regulator front pipe (14) at one side of the diffusing pipe (15), a pressure regulator (11) is arranged at one end of the second pressure regulator front pipe (14), one end of the pressure regulator (11) is fixedly connected with a pressure regulator rear pipe (9), one end of the pressure regulator rear pipe (9) is provided with a second flange ball valve (7), one end of the second flange ball valve (7) is fixedly connected with a connecting pipe (5), the input ends of the IC card prepayment controller (10) and the voltage regulator (11) are electrically connected with the output end of an external power supply.

2. The natural gas pressure regulating batch meter of claim 1, characterized in that: metering box shell (13) one end is provided with the door plant, and the door plant adopts thick 2m cold-rolled steel sheet, hem interface and strengthening rib interface welding around the door.

3. The natural gas pressure regulating batch meter of claim 1, characterized in that: the pressure regulator (11) is one-stage pressure regulating, the pressure of the pipeline is designed to be 0.4Pa, and the whole pipeline is of a double-path structure.

4. The natural gas pressure regulating batch meter of claim 1, characterized in that: a thread groove is formed in one end of the seamless pipe (17), and the inner wall of the thread groove is in threaded connection with the outer end of the pipe cap (18).

5. The natural gas pressure regulating batch meter of claim 1, characterized in that: chassis (12) have been placed to batch meter shell (13) bottom, fastening bolt (21) and batch meter shell (13) threaded connection are passed through to chassis (12) one end, fish scale hole (22) have been seted up to batch meter shell (13) one end top position department symmetry, and batch meter shell (13) one end is located fish scale hole (22) one side position department and has seted up forked key hole (23).

6. The natural gas pressure regulating batch meter of claim 5, characterized in that: the underframe (12) is welded by thickened standard channel steel.