CN216896807U

CN216896807U - Natural gas pressure regulating system

Info

Publication number: CN216896807U
Application number: CN202220592165.2U
Authority: CN
Inventors: 吴建林; 张琪锠; 陈雷明; 徐超
Original assignee: Zhejiang Zheneng Zhenhai Gas Thermal Power Co ltd
Current assignee: Zhejiang Zheneng Zhenhai Gas Thermal Power Co ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-07-05
Anticipated expiration: 2032-03-17

Abstract

The utility model provides a natural gas pressure regulating system which comprises a metering unit, a dust separating unit and a pressure regulator body which are connected in series, wherein a working pipeline and a standby pipeline are arranged between the dust separating unit and the pressure regulator body, and a working branch pipe and a standby branch pipe are respectively arranged outside the working pipeline and the standby pipeline. By adopting the technical scheme, the utility model has the beneficial effects that: when the working pipeline fails, the working pipeline is closed for maintenance, and the standby pipeline is started to enable the fuel gas not to influence the circulation and the normal use of the fuel gas.

Description

Natural gas pressure regulating system

Technical Field

The utility model relates to the technical field of natural gas, in particular to a natural gas pressure regulating system.

Background

The gas pressure regulating system is a pressure reducing device used for regulating the gas supply pressure in a gas transmission and distribution system, and the basic task of the gas pressure regulating system is to regulate the higher inlet pressure of a preceding stage to the pressure required by the downstream. Is an important link for connecting all processes in a gas transmission and distribution pipe network. The equipment composing the pressure regulating station comprises a valve, a safety cut-off valve, a safety relief valve, a filter, a compensator, a pressure regulator, a measuring instrument, a bypass pipe and the like. The pressure regulator is the most core part in the pressure regulating system, and has the maximum function of keeping stable pressure of gas in use so as to ensure that a gas appliance obtains stable gas-air ratio (the matching ratio of gas to air); the use of a pressure regulator in the gas supply system reduces and stabilizes the gas pressure at a suitable level that enables safe, economical and efficient use of the gas.

The existing gas pressure regulating system is too simple in structure, when a working pipeline breaks down, the working pipeline needs to be closed for maintenance, so that the gas cannot be circulated and used, and normal use of the gas is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a natural gas pressure regulating system, which aims to solve the problems that the existing gas pressure regulating system in the background art is too simple in structure, when a working pipeline breaks down, the working pipeline needs to be closed for maintenance, so that gas cannot be circulated and used, the normal use of the gas is influenced, and the like.

The technical scheme of the utility model is realized as follows:

the utility model provides a natural gas pressure regulating system, includes series connection's metering unit, dust separating unit and voltage regulator body, dust separating unit with be provided with working pipeline and reserve pipeline between the voltage regulator body, working pipeline with reserve pipeline sets up work branch pipe and reserve branch pipe outward respectively.

Preferably, a first filter is arranged on the working pipeline.

Preferably, both ends of the first filter are provided with first control valves.

Preferably, a second filter is arranged on the spare pipeline.

Preferably, both ends of the second filter are provided with second control valves.

Preferably, the working pipeline, the working branch pipe and the spare pipeline are fixedly connected through a connecting rod.

Preferably, the spare pipeline is fixedly connected with the spare branch pipe through the connecting rod.

Preferably, the input ends of the working pipeline and the standby pipeline are provided with safety shut-off valves.

Preferably, the output ends of the working pipeline and the standby pipeline are provided with monitoring pressure regulating valves.

By adopting the technical scheme, the utility model has the beneficial effects that:

the gas-fired boiler is provided with the working pipeline and the standby pipeline, when the working pipeline breaks down, the working pipeline is closed for maintenance, and the standby pipeline is started to enable gas not to affect circulation and normal use of the gas.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of the system of the present invention.

Wherein:

1. a voltage regulator body; 2. a working pipeline; 3. a standby pipeline; 4. a first filter; 5. a second filter; 6. a dust separating unit; 7. a metering unit; 8. a connecting rod; 9. a first control valve; 10. a working branch pipe; 11. a standby branch pipe; 12. a second control valve; 13. a safety shut-off valve; 14. and monitoring the pressure regulating valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

Referring to fig. 1, a natural gas pressure regulating system, metering unit 7 including series connection, dust separating unit 6 and voltage regulator body 1, be provided with working pipeline 2 and reserve pipeline 3 between dust separating unit 6 and the voltage regulator body 1, working pipeline 2 and reserve pipeline 3 set up work branch pipe 10 and reserve branch pipe 11 outward respectively, dust separating unit 6 and metering unit 7 in this specification are current gas pipeline filtration system's common technique, can carry out dust separation and calculation gas circulation to the gas, its concrete structure and theory of operation do not do the one by one detailed explanation here.

Specifically, a first filter 4 is arranged on the working pipeline 2, and a second filter 5 is arranged on the standby pipeline 3; the first filter 4 and the second filter 5 mentioned in the present description are common technologies in the existing gas pipeline filtering system, and can filter the gas and remove impurities in the gas, and the specific structure and the working principle thereof are not explained in detail herein.

Specifically, the two ends of the first filter 4 are provided with first control valves 9, and the two ends of the second filter 5 are provided with second control valves 12; the provision of the first control valve 9 and the second control valve 12 helps to control the amount of gas flowing into or out of the first filter 4 and the second filter 5.

Specifically, the working pipeline 2, the working branch pipe 10 and the standby pipeline 3 are fixedly connected through a connecting rod 8, and the standby pipeline 3 and the standby branch pipe 11 are fixedly connected through the connecting rod 8; so set up, connect fixedly through connecting rod 8 to working channel 2, work branch pipe 10, reserve pipeline 3 and reserve branch pipe 11, avoid working channel 2, work branch pipe 10, reserve pipeline 3 and reserve branch pipe 11 to rock and damage.

Specifically, the input ends of the working pipeline 2 and the standby pipeline 3 are respectively provided with a safety shut-off valve 13; the working line 2 or the standby line 3 can be shut off by the safety shut-off valve 13.

Specifically, the output ends of the working pipe 2 and the standby pipe 3 are each provided with a monitoring pressure regulating valve 14.

The working principle is as follows:

the utility model is provided with the working pipeline 2 and the standby pipeline 3, when the working pipeline 2 breaks down, the working pipeline 2 is closed for maintenance, and the standby pipeline 3 is started to ensure that the circulation of the fuel gas is not influenced and the normal use of the fuel gas is not influenced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A natural gas pressure regulating system which is characterized in that: metering unit (7), dust separating unit (6) and voltage regulator body (1) including the series connection, dust separating unit (6) with be provided with between voltage regulator body (1) working pipeline (2) and reserve pipeline (3), working pipeline (2) with reserve pipeline (3) set up work branch pipe (10) and reserve branch pipe (11) outward respectively.

2. The natural gas pressure regulating system of claim 1, wherein: and a first filter (4) is arranged on the working pipeline (2).

3. The natural gas pressure regulating system of claim 2, wherein: and two ends of the first filter (4) are provided with first control valves (9).

4. The natural gas pressure regulating system of claim 1, wherein: and a second filter (5) is arranged on the standby pipeline (3).

5. The natural gas pressure regulating system of claim 4, wherein: and second control valves (12) are arranged at two ends of the second filter (5).

6. The natural gas pressure regulating system of claim 1, wherein: the working pipeline (2), the working branch pipe (10) and the standby pipeline (3) are fixedly connected through a connecting rod (8).

7. The natural gas pressure regulating system of claim 6, wherein: the spare pipeline (3) is fixedly connected with the spare branch pipe (11) through the connecting rod (8).

8. The natural gas pressure regulating system of claim 1, wherein: the input of working pipeline (2) with reserve pipeline (3) all is provided with safety shut-off valve (13).

9. The natural gas pressure regulating system of claim 1, wherein: the output ends of the working pipeline (2) and the standby pipeline (3) are provided with monitoring pressure regulating valves (14).