Pressure-regulating metering cabinet

Abstract

The utility model discloses a pressure regulating metering cabinet, which comprises a base, and a box body, a gas inlet pipeline, a filtering pipeline, a metering pipeline, a pressure regulating pipeline, a gas outlet pipeline and a diffusing pipeline which are arranged on the base, and the box body is arranged on the periphery of the base and wraps the filtering pipeline, the metering pipeline and the pressure regulating pipeline. The gas inlet pipe, the gas outlet pipeline and the diffusing pipeline extend out of the box body, one end of the gas inlet pipeline extends out of the box body, the other end of the gas inlet pipeline is connected with the filtering pipeline, the metering pipeline, the pressure regulating pipeline and the gas outlet pipeline are sequentially arranged at the rear end of the filtering pipeline, and the diffusing pipeline is arranged between the pressure regulating pipeline and the gas outlet pipeline. The utility model has the beneficial effects of reasonable structure, clean filtration, accurate metering, safety and reliability.

Description

Technical Field

[0001] The utility model relates to the field of chemical equipment, in particular to a pressure regulating and metering cabinet. Background Art

[0002] The transportation of natural gas requires multiple loading and unloading operations, from the site to the transport vehicle, or from the transport vehicle to a small local site for unloading, all of which require metering and pressure regulation.

[0003] The gas pressure regulating and metering cabinet is used to regulate the pressure of natural gas, and then transport it or deliver it through pipelines to residential areas, hotels, guesthouses, factories, schools and other units for gas supply.

[0004] Existing pressure regulating cabinets have limited functions and cannot filter or measure natural gas, which can cause blockage of pipelines or gas-consuming equipment. It is also inconvenient to measure the amount of gas delivered. As a result, the market lacks a pressure regulating and metering cabinet that can filter cleanly, measure accurately, and be safe and reliable. Utility Model Content

[0005] In order to solve the above problems, the purpose of the utility model is to provide a pressure regulating and metering cabinet with reasonable structure, clean filtration, accurate measurement, safety and reliability.

[0006] According to one aspect of the present invention, a pressure regulating and metering cabinet is provided, comprising: a base and a housing mounted on the base, a gas inlet pipeline, a filter pipeline, a metering pipeline, a pressure regulating pipeline, a gas outlet pipeline and a venting pipeline, wherein the housing is arranged around the base and covers the filter pipeline, the metering pipeline and the pressure regulating pipeline, the gas inlet pipe, the gas outlet pipeline and the venting pipeline extend out of the housing, one end of the body inlet pipeline extends out of the housing, the other end of the gas inlet pipeline is connected to the filter pipeline, the rear end of the filter pipeline is sequentially provided with a metering pipeline, a pressure regulating pipeline and a gas outlet pipeline, and the venting pipeline is arranged between the pressure regulating pipeline and the gas outlet pipeline. The gas inlet pipeline facilitates connection with matching conveying equipment, the filter pipeline filters out impurities in natural gas to prevent blockage, the metering pipeline accurately counts the amount of gas flowing in or out, the gas outlet pipeline enables multi-pipeline gas transmission, and the venting pipeline discharges the gas in the pipe to ensure safety in the pipeline.

[0007] In some embodiments, the gas inlet pipeline includes a first pipeline and a steel-plastic conversion joint, wherein the steel-plastic conversion joint is installed at the front end of the first pipeline and the rear end of the first pipeline is connected to the filter pipeline. The steel-plastic conversion joint facilitates connection with different types of equipment.

[0008] In some embodiments, the filtration pipeline includes: a second pipeline, a first ball valve, and a filter. The front end of the second pipeline is connected to the first pipeline. The second pipeline is provided with a first ball valve, and the first ball valve connects the second pipeline and the filter. The filter filters the gas flowing through the pipeline.

[0009] In some embodiments, the filter is a Y-type filter. The Y-type filter has the advantages of low resistance and convenient sewage discharge.

[0010] In some embodiments, the metering pipeline includes a third pipeline, a first pressure gauge, and a flow meter. The front end of the third pipeline is connected to a filter, the first pressure gauge is mounted on the third pipeline, and the rear end of the third pipeline is connected to the flow meter. The flow meter is directly connected to the pressure regulating pipeline. The flow meter has the advantage of accurate measurement.

[0011] In some embodiments, the flow meter is a turbine flow meter with an IC card controller. The use of a turbine flow meter with an IC card controller has the beneficial effects of remote display and accurate measurement.

[0012] In some embodiments, the pressure regulating pipeline includes: a fourth pipeline and a pressure regulator, wherein the front end of the fourth pipeline is connected to a flow meter, and the pressure regulator is connected to the gas outlet pipeline. The pressure regulator is used to change the pressure of the gas in the pipeline to be consistent with the pressure at the output end.

[0013] In some embodiments, the gas outlet pipeline includes: a fifth pipe, a first gas outlet, a second gas outlet, a second ball valve, and a third ball valve. The front end of the fifth pipe is connected to the pressure regulator, the front ends of the first and second gas outlets are both connected to the fifth pipe, and the rear ends of the first and second gas outlets extend out of the box. The second ball valve is provided on the first gas outlet, and the third ball valve is provided on the second gas outlet. The second and third ball valves facilitate connection of the gas outlets to output devices individually or simultaneously.

[0014] In some embodiments, the fifth pipe is connected to a release pipeline.

[0015] The utility model has the following beneficial effects: reasonable structure, clean filtration, accurate metering, and safety and reliability. The utility model facilitates matching and connecting with conveying equipment through the gas inlet pipeline, filters impurities in natural gas through the filter pipeline to prevent blockage, accurately counts the amount of gas flowing in or out through the metering pipeline, can transmit gas through multiple pipelines through the gas outlet pipeline, and ensures safety in the pipeline by discharging the gas in the pipeline through the venting pipeline; facilitates connection with different types of equipment through the steel-plastic conversion joint; has the advantages of low resistance and convenient sewage discharge through the Y-type filter; has the beneficial effects of remote display and accurate metering through the use of a turbine flowmeter with an IC card controller; uses a pressure regulator to change the pressure of the gas in the pipeline to make it consistent with the pressure at the output end; and facilitates the connection of the gas outlet to the output device separately or simultaneously through the second and third ball valves. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a voltage regulating and metering cabinet of the utility model;

[0017] Figure 2 This is a left view of a voltage regulating and metering cabinet of the utility model;

[0018] Figure 3 This is a top view of a voltage regulating and metering cabinet of the present utility model. DETAILED DESCRIPTION

[0019] The present invention is described in detail below with reference to the various embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods or structures made by ordinary technicians in this field based on these embodiments are within the scope of protection of the present invention.

[0020] In the description of the present utility model, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meaning of the terms can be understood according to the specific circumstances.

[0021] like Figure 1-Figure 3As shown, the pressure regulating and metering cabinet described in the present invention includes: a base 1 and a box body 2, a gas inlet pipeline 3, a filter pipeline 4, a metering pipeline 5, a pressure regulating pipeline 6, a gas outlet pipeline 7 and a release pipeline 8 installed on the base 1. The box body 2 is arranged around the base 1 and covers the filter pipeline 4, the metering pipeline 5 and the pressure regulating pipeline 6. The gas inlet pipe, the gas outlet pipeline 7 and the release pipeline 8 extend out of the box body 2. One end of the body inlet pipeline extends out of the box body 2, and the other end of the gas inlet pipeline 3 is connected to the filter pipeline 4. The rear end of the filter pipeline 4 is sequentially provided with the metering pipeline 5, the pressure regulating pipeline 6 and the gas outlet pipeline 7, and the release pipeline 8 is arranged between the pressure regulating pipeline 6 and the gas outlet pipeline 7. The gas inlet pipeline 3 facilitates connection with matching transportation equipment, the filter pipeline 4 filters out impurities in the natural gas to prevent blockage, the metering pipeline 5 accurately counts the amount of gas flowing in or out, the gas outlet pipeline 7 enables multi-pipeline gas transmission, and the gas in the pipeline is discharged through the vent pipeline 8 to ensure safety in the pipeline.

[0022] The gas inlet pipeline 3 includes a first pipeline 31 and a steel-plastic conversion joint 32. The steel-plastic conversion joint 32 is installed at the front end of the first pipeline 31, and the rear end of the first pipeline 31 is connected to the filter pipeline 4. The steel-plastic conversion joint 32 facilitates connection with different types of equipment.

[0023] The filter line 4 includes a second line 41, a first ball valve 42, and a filter 43. The front end of the second line 41 is connected to the first line 31. The first ball valve 42 is provided in the second line 41, and the first ball valve 42 connects the second line 41 and the filter 43. The filter 43 filters the gas flowing through the line.

[0024] The filter 43 is a Y-type filter 43. The Y-type filter 43 has the advantages of low resistance and convenient sewage discharge.

[0025] Metering pipeline 5 includes a third pipeline 51, a first pressure gauge 52, and a flow meter 53. The front end of third pipeline 51 is connected to filter 43, and the first pressure gauge 52 is mounted on third pipeline 51. The rear end of third pipeline 51 is connected to flow meter 53, which is directly connected to pressure regulating pipeline 6. Flow meter 53 provides the advantage of accurate measurement.

[0026] The flow meter 53 is a turbine flow meter with an IC card controller 53. The use of the turbine flow meter with an IC card controller 53 has the beneficial effects of remote display and accurate measurement.

[0027] The pressure regulating pipeline 6 includes a fourth pipeline 61 and a pressure regulator 62. The front end of the fourth pipeline 61 is connected to the flow meter 53, and the pressure regulator 62 is connected to the gas outlet pipeline 7. The pressure regulator 62 changes the pressure of the gas in the pipeline to match the pressure at the output end.

[0028] The gas outlet pipeline 7 includes a fifth pipe 71, a first gas outlet 72, a second gas outlet 73, a second ball valve 74, and a third ball valve 75. The front end of the fifth pipe 71 is connected to the pressure regulator 62. The front ends of the first and second gas outlets 72, 73 are both connected to the fifth pipe 71. The rear ends of the first and second gas outlets 72, 73 extend out of the housing 2. The second ball valve 74 is provided on the first gas outlet 72, and the third ball valve 75 is provided on the second gas outlet 73. The second and third ball valves 74, 75 facilitate connecting the gas outlets individually or simultaneously to output devices.

[0029] The fifth pipeline 71 is connected to the discharge pipeline 8. A safety valve is provided on the discharge pipeline 8.

[0030] During use, the steel-plastic conversion joint 32 is first connected to the conveying equipment, and the valve of the conveying equipment is opened. The gas passes through the filter pipeline 4, the metering pipeline 5, the pressure regulating pipeline 6, and the gas outlet pipeline 7 in sequence, and is finally discharged from the first gas outlet 72 or the second gas outlet 73. When the pressure in the pipeline is too high, the safety valve connected to the venting pipeline 8 opens and the gas is discharged.

[0031] During the processing, please note the following: All welds must be visually inspected and meet NB / T47013.7, Level I, for acceptance. All fillet welds must be penetrant tested and meet NB / T47013.5, Level I, for acceptance. Carbon steel butt welds must be radiographically inspected at 20% accuracy and meet NB / T47013.2, Level AB / II, for acceptance. Radiographs are not required for the butt welds after the safety valve in safety relief line 8. Forced assembly is prohibited during assembly. The pipeline must be thoroughly cleaned before assembling components such as pressure regulator 62. Copper jumpers must be connected between flanges, with a contact resistance of less than 0.03 ohms. Strength and airtightness tests must comply with the requirements in the technical data sheet. Painting requirements: Normal temperature piping, medium yellow, color code Y07. Relief line 8, red, color code R03. Base 1, medium gray, color code B02. Primer: Zinc-rich epoxy. Intermediate: Fast-drying micaceous iron epoxy. Topcoat: Fast-drying polyurethane.

[0032] The performance indicators are as follows:

[0033]

[0034] The above are only some embodiments of the present invention. It should be pointed out that for ordinary technicians in this field, other variations and improvements can be made without departing from the creative concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A voltage regulating and metering cabinet, characterized in that: include: A base and a box body installed on the base, a gas inlet pipeline, a filter pipeline, a metering pipeline, a pressure regulating pipeline, a gas outlet pipeline and a discharge pipeline, the box body is arranged around the base and covers the filter pipeline, the metering pipeline and the pressure regulating pipeline, the gas inlet pipe, the gas outlet pipeline and the discharge pipeline extend out of the box body, one end of the body inlet pipeline extends out of the box body, and the other end of the gas inlet pipeline is connected to the filter pipeline, the rear end of the filter pipeline is sequentially provided with a metering pipeline, a pressure regulating pipeline and a gas outlet pipeline, and the discharge pipeline is arranged between the pressure regulating pipeline and the gas outlet pipeline.

2. A voltage regulating and metering cabinet according to claim 1, characterized in that: The gas inlet pipeline includes: a first pipeline and a steel-plastic conversion joint, the steel-plastic conversion joint is installed at the front end of the first pipeline, and the rear end of the first pipeline is connected to the filter pipeline.

3. A voltage regulating and metering cabinet according to claim 2, characterized in that: The filtering pipeline includes: a second pipeline, a first ball valve and a filter. The front end of the second pipeline is connected to the first pipeline. The second pipeline is provided with a first ball valve. The first ball valve connects the second pipeline and the filter.

4. A voltage regulating and metering cabinet according to claim 3, characterized in that: The filter is a Y-type filter.

5. A voltage regulating and metering cabinet according to claim 3 or 4, characterized in that: The metering pipeline includes: a third pipeline, a first pressure gauge and a flow meter. The front end of the third pipeline is connected to a filter, the first pressure gauge is installed on the third pipeline, the rear end of the third pipeline is connected to the flow meter, and the flow meter is directly connected to the pressure regulating pipeline.

6. A voltage regulating and metering cabinet according to claim 5, characterized in that: The flow meter is a turbine flow meter with an IC card controller.

7. A voltage regulating and metering cabinet according to claim 6, characterized in that: The pressure regulating pipeline includes: a fourth pipeline and a pressure regulator. The front end of the fourth pipeline is connected to a flow meter, and the pressure regulator is connected to a gas outlet pipeline.

8. The voltage regulating and metering cabinet according to claim 7, characterized in that: The gas outlet pipeline includes: a fifth pipeline, a first gas outlet, a second gas outlet, a second ball valve and a third ball valve. The front end of the fifth pipeline is connected to the pressure regulator. The front ends of the first gas outlet and the second gas outlet are both connected to the fifth pipeline. The rear ends of the first gas outlet and the second gas outlet extend out of the box. The second ball valve is provided on the first gas outlet, and the third ball valve is provided on the second gas outlet.

9. The voltage regulating and metering cabinet according to claim 8, characterized in that: The fifth pipeline is connected to the venting pipeline.

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