CN205191227U - Unstable gas pressure regulating system of prevention signal union coupling department - Google Patents

Abstract

The utility model discloses an unstable gas pressure regulating system of prevention signal union coupling department, its characterized in that: take over including import takeover, import ball valve, filter, gas cut -off valve, gas pressure regulator, gas output pipeline, export ball valve, export, gas pressure regulator connects the export through the gas output pipeline with the export ball valve and takes over, advance, export to take over including the body and the mounting flange on placing the body in, the body lower part is the welding circular bead, and loose flange lies in the welding bench shoulder -mounted, signal pipe one end and gas output pipeline intercommunication, the other end docks with the coupling that sets up on gas pressure regulator. The utility model discloses changed that signal pipe that the directness divides the problem of being connected with sensor portion in the present gas product, firm zonulae occludens between signal pipe and the coupling, even the long -time back of using, obscissions such as crack can not appear in its connection position, the circumstances of junction unstability more can not appear, have guaranteed the leakproofness of atmospheric pressure.

Description

A kind of gas pressure regulating system preventing signal tube joint instability

Technical field

The utility model relates to a kind of gas pressure regulating field, especially a kind of gas pressure regulating system preventing signal tube joint instability.

Background technique

Along with the change of China's energy resource structure and continuing to increase of environmental protection dynamics, the development and utilization of rock gas is made to obtain swift and violent development.Compressed natural gas is that well head rock gas or the laggard horizontal high voltage of pipe natural gas purification compression are stored and transport, arrives place to use, directly inputs pipe network supply all types of user through multi-stage heat exchanger, pressure regulation.Gas generally could finally will be used by user through the pressure regulation of regulator, and Gas Pressure Regulating Equipment is generally made up of several function module, as pressure governor realizes voltage regulation function; Filter realizes clean filtering function etc.; In recent years, because wideling popularize of the clean energy resourcies such as rock gas, Gas Regulator also obtains applying more widely, and therefore relevant departments also strengthen the supervision of the design of the type device, manufacture, use, make quality of product further be ensured and improve.In existing voltage-regulating system, no matter be cut-off valve or pressure governor, its signal tube is all directly connect with corresponding Sensor section, and after using a period of time, its connection part easily occurs crack, easily comes off; Due to the instability of joint, easily cause pressurized seal poor, affect the effect that sensor detects, affect cut-off valve performance and working life; Be unfavorable for whole voltage-regulating system work simultaneously; Therefore need to be improved.

Model utility content

The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of gas pressure regulating system preventing signal tube joint instability is provided at this, changing signal tube in existing fuel gas product is the problem be directly connected with Sensor section, between signal tube with pipe joint, secure rigid is connected, after using even if long-time, its connection part there will not be the obscissions such as crack, more there will not be the situation of joint instability, ensure that the sealing of air pressure, the Detection results of sensor can not be affected, be conducive to cut-off valve, the prolongation in the product performance such as pressure governor and working life.

The utility model is achieved in that structure is a kind of and prevents the gas pressure regulating system of signal tube joint instability: it is characterized in that: comprise entrance sleeve, inlet ball valve, filter, gas cut off valve, gas pressure regulator, governor, combustion gas output pipeline, vent ball valve, discharge connection; Entrance sleeve is connected with gas cut off valve through inlet ball valve, and gas cut off valve is communicated with gas pressure regulator, governor simultaneously, and gas pressure regulator, governor is through combustion gas output pipeline and the adapter of vent ball valve connection outlet; Described entrance sleeve and discharge connection adopt following structure, and it comprises body and is placed in the fastening flange on body, and body bottom is welding shoulder, and loose flange is positioned on welding shoulder, and the end face of welding shoulder arranges seal ring B; Signal tube one end is communicated with combustion gas output pipeline, and the other end docks with the pipe joint be arranged on gas pressure regulator, governor; Pipe joint has outside trumpet-shaped step inner joint and outer end, arranges black box A and black box B between signal tube and the pipe joint docked; The outer installment fastener assembly that signal tube docks with pipe joint; Seal ring A is between signal tube, pipe joint and black box B.

The utility model has the advantage of: the utility model provides a kind of gas pressure regulating system preventing signal tube joint instability by improving at this, changing signal tube in existing fuel gas product is the problem be directly connected with Sensor section, between signal tube with pipe joint, secure rigid is connected, after using even if long-time, its connection part there will not be the obscissions such as crack, more there will not be the situation of joint instability, ensure that the sealing of air pressure, the Detection results of sensor can not be affected, be conducive to cut-off valve, the prolongation in the product performance such as pressure governor and working life, also be conducive to the operation of whole gas pressure regulating system simultaneously.Meanwhile, the entrance sleeve after improving and discharge connection, global design is reasonable, and compact structure, owing to being provided with special seal ring B, therefore effectively serves leakproof effect, and installs simple, and maintaining is convenient, has practicability widely.

Accompanying drawing explanation

Fig. 1 is the utility model linkage structure schematic diagram

Fig. 2 is the utility model pipe joint schematic diagram

Fig. 3 is close-up schematic view in Fig. 1

Fig. 4 is gas pressure regulating system schematic described in the utility model

Fig. 5 is inlet/outlet adapter schematic diagram in the utility model gas pressure regulating system.

Embodiment

Be described in detail to the utility model below in conjunction with accompanying drawing 1-5, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.

The utility model, by improving the gas pressure regulating system providing a kind of gas pressure regulator, governor signal tube linkage structure and possess this structure, as Figure 1-5, can be implemented in the following manner; Prevent a gas pressure regulating system for signal tube joint instability, comprise entrance sleeve 100, inlet ball valve 200, filter 300, gas cut off valve 400, gas pressure regulator, governor 500, combustion gas output pipeline 600, vent ball valve 700, discharge connection 800; Entrance sleeve 100 is connected with gas cut off valve 400 through inlet ball valve 200, and gas cut off valve 400 is communicated with gas pressure regulator, governor 500 simultaneously, and gas pressure regulator, governor 500 is through combustion gas output pipeline 600 and vent ball valve 700 connection outlet adapter 800; Described entrance sleeve 100 and discharge connection 800 adopt following structure, it comprises body 101 and is placed in the fastening flange 102 on body 101, body 101 bottom is welding shoulder 103, and loose flange 104 is positioned on welding shoulder 103, and the end face of welding shoulder 103 arranges seal ring B105; One, the entrance sleeve after improving and discharge connection, global design is reasonable, and compact structure, owing to being provided with special seal ring B, therefore effectively serves leakproof effect, and installs simple, and maintaining is convenient, has practicability widely.Signal tube 1 one end is communicated with combustion gas output pipeline 600, and the other end docks with the pipe joint 2 be arranged on gas pressure regulator, governor 500; Pipe joint 2 has outside trumpet-shaped step inner joint 2a and outer end 2b, arranges black box A3 and black box B4 between signal tube 1 and the pipe joint 2 docked; The outer installment fastener assembly 5 that signal tube 1 docks with pipe joint 2; Seal ring A6 is between signal tube 1, pipe joint 2 and black box B4.

Improvement of the present utility model is: (1) changes signal tube in existing same category of device is the problem be directly connected with Sensor section, after improving, between signal tube with pipe joint, secure rigid is connected, after using even if long-time, its connection part there will not be the obscissions such as crack, more there will not be the situation of joint instability, ensure that the sealing of air pressure, the Detection results of sensor can not be affected, be conducive to the prolongation in cut-off valve performance and working life.(2) entrance sleeve after improving and discharge connection, global design is reasonable, and compact structure, owing to being provided with special seal ring B, therefore effectively serves leakproof effect, and installs simple, and maintaining is convenient, has practicability widely.

To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (1)

1. prevent a gas pressure regulating system for signal tube joint instability, it is characterized in that: comprise entrance sleeve (100), inlet ball valve (200), filter (300), gas cut off valve (400), gas pressure regulator, governor (500), combustion gas output pipeline (600), vent ball valve (700), discharge connection (800); Entrance sleeve (100) is connected with gas cut off valve (400) through inlet ball valve (200), gas cut off valve (400) is communicated with gas pressure regulator, governor (500) simultaneously, and gas pressure regulator, governor (500) is through combustion gas output pipeline (600) and vent ball valve (700) connection outlet adapter (800); Described entrance sleeve (100) and discharge connection (800) adopt following structure, it comprises body (101) and is placed in the fastening flange (102) on body (101), body (101) bottom is welding shoulder (103), loose flange (104) is positioned in welding shoulder (103), and the end face of welding shoulder (103) arranges seal ring B(105); Signal tube (1) one end is communicated with combustion gas output pipeline (600), and the other end docks with the pipe joint (2) be arranged on gas pressure regulator, governor (500); Pipe joint (2) has outside trumpet-shaped step inner joint (2a) and outer end (2b), arranges black box A(3 between signal tube (1) with the pipe joint docked (2)) and black box B(4); The outer installment fastener assembly (5) that signal tube (1) docks with pipe joint (2); Seal ring A(6) be positioned at signal tube (1), pipe joint (2) and black box B(4) between.