CN217540398U

CN217540398U - Outer box structure of composite barrel type double-path underground gas pressure regulating box

Info

Publication number: CN217540398U
Application number: CN202221129794.8U
Authority: CN
Inventors: 王翔宇
Original assignee: Tianjin Chris Gas Equipment Co ltd
Current assignee: Tianjin Chris Gas Equipment Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-10-04
Anticipated expiration: 2032-05-05

Abstract

The application relates to an outer box structure of compound barrel formula double-circuit underground gas pressure regulating box includes: the shell box, pressure regulating pipeline and pressure-bearing connecting pipe, the pressure regulating pipeline is two for setting up side by side, including main barrel and auxiliary barrel, the upper portion of main barrel is uncovered, inside has high-pressure chamber, be linked together with the inlet pipe, the intercommunicating pore has been seted up to the bottom of main barrel, auxiliary barrel establishes outside one side and the bottom of main barrel, inside has low pressure chamber, be linked together through intercommunicating pore and high-pressure chamber, low pressure chamber and outlet pipe intercommunication, two pressure regulating pipelines of shell box cladding, the pressure-bearing connecting pipe is two, the upper end of pressure-bearing connecting pipe and the last roof fixed connection of shell box, the lower extreme is with the uncovered phase-match of main barrel, and fixed connection, the last roof of shell box is located the pressure-bearing connecting pipe and is applicable to An Zhuangdiao pressure core. The pressure-bearing connecting pipe is used for bearing the weight of the integrated pressure regulating core which needs to be installed, and the problems that welding requirements cannot be met between the two main cylinders and structural strength is poor are solved.

Description

Outer box structure of composite barrel type double-path underground gas pressure regulating box

Technical Field

The application relates to a gas transmission and distribution field especially relates to an outer box structure of compound barrel formula double-circuit underground gas pressure regulating box.

Background

With the development of economic society, fuel gas is widely applied in a large quantity, and then the fuel gas is widely applied as a necessary fuel gas pressure regulating box in a fuel gas transmission and distribution system. The traditional overground pressure regulating box adopts a pipeline flange connection structure, occupies a large overground space and has a large requirement on safety spacing. In the design and site selection of the pressure regulating box, the requirements of safety distance and site selection in a construction red line are met, and on the current urban construction land with the precious soil, the areas meeting the requirements are few and few, the site selection difficulty is high, so the gas underground pressure regulating box with low requirements of safety distance is produced at present.

In the practical use of the underground pressure regulating box, the integrated gas underground pressure regulating box which can bear load, is waterproof and sealed, occupies small space, is designed in an integrated manner, is convenient to maintain and repair, is more and more approved by the majority of users and relevant management units, and represents the development direction of the underground pressure regulating box.

The shell box body in the underground pressure regulating box is connected with the inlet and outlet valves, a gas flow channel and an installation space of the integrated pressure regulating device are provided, the inside of the shell box body is in contact with gas, the outside of the shell box body is in contact with soil, the shell box body has the capacity of bearing the gas pressure, the surrounding soil pressure and the load caused by trampling and rolling of pedestrians and vehicles on the upper part of equipment, and the shell box body is an important component required for ensuring the safe operation of the underground pressure regulating box.

Underground gas pressure regulating box's among the prior art integration level is higher and higher, and there has been the pressure regulating core that adopts two way the same configurations, it is integrated in same shell box, realize the common configuration of "one division is equipped with" promptly, to the higher double-circuit gas pressure regulating equipment of integration level, double-circuit gas pressure regulating equipment need set up two sets of pressure-bearing barrel in limited space, but highly integrated shell box leads to the welding of two barrel middle parts can't satisfy the demand, lack one kind and guaranteeing under the sufficient prerequisite of complete machine structural strength, still have the double-circuit underground pressure regulating equipment of higher integration level.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present application provides an outer box structure of a composite cylinder type two-way underground gas pressure regulating box, which includes an outer box and a pressure regulating pipeline; the number of the pressure regulating pipelines is two, the pressure regulating pipelines are arranged in parallel, and the shell box body covers the two pressure regulating pipelines; the pressure regulating pipeline comprises a main cylinder and an auxiliary cylinder; the upper part of the main cylinder body is open, a high-pressure chamber positioned above and a part of low-pressure chamber positioned below are arranged in the main cylinder body, the main cylinder body is communicated with the inlet pipeline, and communication holes are formed between the high-pressure chamber and the part of the low-pressure chamber; the auxiliary cylinder body is arranged on one side of the main cylinder body, the inside of the auxiliary cylinder body is the low-pressure chamber of the rest part communicated with part of the low-pressure chamber, the auxiliary cylinder body is communicated with part of the low-pressure chamber in the main cylinder body through the vent hole or the vent groove formed in the main cylinder body, and the low-pressure chamber is communicated with an outlet pipeline; and a pressure-bearing connecting pipe is arranged above each main cylinder body, the upper end of each pressure-bearing connecting pipe is hermetically connected with the upper top plate of the shell box body, and the lower end of each pressure-bearing connecting pipe is matched with the opening of each main cylinder body and is hermetically connected with the upper part of the side wall of each main cylinder body.

In a possible implementation, the axial height of the pressure-bearing connecting pipe is greater than the thickness of the upper top plate; the thickness of the side wall of the pressure-bearing connecting pipe is larger than that of the main cylinder body.

In a possible implementation mode, the upper top plate is provided with two pressure regulating core mounting holes, and the upper end of the pressure bearing connecting pipe is welded and fixed at the position of the pressure regulating core mounting hole corresponding to the upper top plate.

In one possible embodiment, two main cylinders are attached to or arranged close to each other.

In a possible implementation manner, the device further comprises a backing plate; a plurality of fixing holes are annularly formed in the outer side of the pressure regulating core mounting hole, and the backing plates are additionally arranged at the positions, where the fixing holes are formed, of the upper top plate; the backing plate is provided with the same fixing holes and does not interfere with the pressure regulating core.

In one possible implementation, the upper top plate has a thickness between [15mm,25mm ]; the thickness of the side wall of the main cylinder body is about half of the wall thickness of the pressure-bearing connecting pipe, and the two are made of the same material.

In a possible implementation manner, the auxiliary cylinder is wrapped on the opposite side of the main cylinder communicated with the inlet pipeline, and the outlet pipeline is arranged opposite to the inlet pipeline; the main cylinder body comprises a main cylinder body side wall plate and a partition plate; the side wall plate at the main cylinder side is a cylindrical plate with a hollow inner part, the bottom of the side wall plate at the main cylinder side is welded and fixed to the bottom of the shell box body, and the vent hole or the vent groove is formed in the position, close to one side of the outlet pipeline, of the bottom of the side wall plate at the main cylinder side; the partition plate is welded and fixed to a position, close to the bottom, of the side wall plate of the main cylinder body, the position of the side wall plate of the main cylinder body is matched in structure, and the communication hole is formed in the center of the partition plate.

In one possible implementation manner, the auxiliary cylinder body covers one side of the main cylinder body and comprises an auxiliary cylinder body sealing plate, an auxiliary cylinder body side enclosing plate and a bottom auxiliary cylinder body sealing plate which are connected with the main cylinder body in a sealing mode, and the auxiliary cylinder body covers the opposite side of the main cylinder body and is in common wall with the main cylinder body; one end of the auxiliary cylinder body sealing plate is matched with the structure of the main cylinder body side enclosing plate and is welded and fixed outside the main cylinder body side enclosing plate, and the other end of the auxiliary cylinder body sealing plate is welded and fixed with the auxiliary cylinder body side enclosing plate; the side wall plate at the side of the auxiliary cylinder body is an arc-shaped plate, the radius of the side wall plate at the side of the auxiliary cylinder body is smaller than that of the side wall plate at the side of the main cylinder body, the bottom edge of the side wall plate at the side of the auxiliary cylinder body is of a straight structure or a convex arc-shaped structure, and the lowest end of the side wall plate at the side of the auxiliary cylinder body is welded to the bottom of the outer shell box body; the outer edge of the bottom auxiliary cylinder body sealing plate close to the inlet pipe side is matched with the bottom structure of the main cylinder body side enclosing plate, the outer edge of the bottom auxiliary cylinder body sealing plate close to the outlet pipe side is matched with the bottom structure of the auxiliary cylinder body side enclosing plate, namely, part of the bottom auxiliary cylinder body sealing plate is welded and fixed with the position, close to the bottom, of the main cylinder body side enclosing plate, and the rest of the bottom auxiliary cylinder body sealing plate is welded and fixed with the position, close to the bottom, of the auxiliary cylinder body side enclosing plate.

In a possible implementation manner, the outlet pipeline is upwards communicated with a diffusing pipeline, two diffusing holes are formed in the upper top plate, and the diffusing pipeline penetrates through the diffusing holes and is communicated to the outside of the shell box body; the outlet pipeline is upwards communicated with a pressure measuring pipeline, the upper top plate is provided with two pressure measuring holes, and the pressure measuring pipeline penetrates through the pressure measuring holes to be communicated to the outside of the shell box body.

In a possible implementation manner, the communication hole extends towards the top of the main cylinder body and is provided with a positioning ring.

The beneficial effect of this application: through being provided with two pressure regulating pipelines side by side in the shell box, and two pressure regulating pipelines are neighbouring to be set up, the uncovered department installation pressure-bearing connecting pipe of main barrel to through on pressure-bearing connecting pipe fixed connection to the shell box, be used for undertaking the main weight that needs the integrated pressure regulating core of installation, can effectual solution two main barrel mid portion can't satisfy the welding requirement, and structural strength relatively poor problem. Furthermore, pressure regulating pipelines such as the main cylinder body are fixed in the shell box body through a pressure-bearing connecting pipe matched with the structure, the welding seam between the upper top plate and the main cylinder body can be only a structural welding seam, the fixed connection of the upper top plate and the main cylinder body is ensured, the pressure-bearing welding seam is not needed, the welding requirement is low, and the operation of technicians in the field is easy. Moreover, compare in directly with the main drum body weld on the roof, whole thickness can be reduced to the unpressurized roof of going up, only needs to guarantee that the section of thick bamboo wall of connecting cylinder has sufficient thickness, ensures that the structural strength outside, goes up the roof and can reduce the material quantity by a wide margin, reduce cost.

Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the description, serve to explain the principles of the application.

Fig. 1 shows a front cross-sectional view of an outer box structure of a composite cylinder type two-way underground gas pressure regulating box according to an embodiment of the present application;

FIG. 2 shows a top view of an outer box structure of the composite barrel type two-way underground gas pressure regulating box according to the embodiment of the application;

fig. 3 is a sectional view showing an outer casing structure of the composite cylinder type two-way underground gas pressure regulating tank according to the embodiment of the present application.

Detailed Description

Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

It will be understood, however, that the terms "central," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present application or for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present application.

Fig. 1 shows a front cross-sectional view of an outer box structure of a composite cylinder type two-way underground gas pressure regulating box according to an embodiment of the present application; FIG. 2 shows a top view of an outer box structure of the composite barrel type two-way underground gas pressure regulating box according to the embodiment of the application; fig. 3 shows a cross-sectional view of an outer box structure of the composite cylinder type two-way underground gas pressure regulating box according to the embodiment of the application.

As shown in fig. 1-3, the outer box structure of the composite cylinder type two-way underground gas pressure regulating box comprises an outer box and a pressure regulating pipeline; the number of the pressure regulating pipelines is two, the two pressure regulating pipelines are arranged in parallel, and the two pressure regulating pipelines are wrapped by the shell box body; the pressure regulating pipeline comprises a main cylinder and an auxiliary cylinder; the upper part of the main cylinder body is open, the interior of the main cylinder body is provided with a high-pressure chamber 7 positioned above and a partial low-pressure chamber 17 positioned below, the main cylinder body is communicated with the inlet pipeline 6, and communication holes are formed between the high-pressure chamber 7 and the partial low-pressure chamber 17; the auxiliary cylinder body is arranged at one side of the main cylinder body, the inside of the auxiliary cylinder body is a low-pressure chamber 17 of the rest part communicated with part of the low-pressure chamber 17, the auxiliary cylinder body is communicated with part of the low-pressure chamber 17 in the main cylinder body through a vent hole or a vent groove arranged on the main cylinder body, and the low-pressure chamber 17 is communicated with an outlet pipeline; a pressure-bearing connecting pipe 9 is arranged above each main cylinder body, the upper end of each pressure-bearing connecting pipe 9 is connected with the upper top plate 8 of the shell box body in a sealing mode, and the lower end of each pressure-bearing connecting pipe is matched with the opening of the main cylinder body and is connected with the upper portion of the side wall of the main cylinder body in a sealing mode.

In this embodiment, two pressure regulating pipelines are arranged in parallel in the housing box body, and the two pressure regulating pipelines are arranged adjacent to each other, and the pressure-bearing connecting pipe 9 is installed at the opening of the main cylinder body and is fixedly connected to the housing box body through the pressure-bearing connecting pipe 9 so as to bear the main weight of the integrated pressure regulating core to be installed, thereby effectively solving the problems that the welding requirements cannot be met and the structural strength is poor in the middle part of the two main cylinder bodies.

Furthermore, pressure regulating pipelines such as the main cylinder body and the like are fixed in the shell box body through the pressure-bearing connecting pipe 9 matched with the structure, the welding seam between the upper top plate 8 and the connecting pipe 9 can be only a structural welding seam, the fixed connection of the pressure regulating pipelines can be ensured, the pressure-bearing welding seam is not needed, the welding requirement is low, and the operation of technicians in the field is easy. Moreover, compare in directly with the main drum body weld on last roof 8, whole thickness can be reduced to non-pressure-bearing last roof 8, only needs to guarantee that the section of thick bamboo wall of connecting cylinder has sufficient thickness, ensures that the structural strength outside, goes up roof 8 and can reduce the material quantity by a wide margin, reduce cost.

It should be noted that the concrete structure of shell box can be multiple structure, and regular shape usually to establish the overall structure that shell box can effectual protection pressure regulating pipeline and receive external soil etc. as far as possible and corrode at pressure regulating pipeline dustcoat, the reasonable life who has prolonged the device itself, and also avoided parts such as the main barrel of pressure-bearing, auxiliary cylinder directly to contact with external environment, the security of equipment has sufficient guarantee.

Preferably, the housing box body is of a hollow square structure, and holes with various sizes are formed in the housing box body and used for communicating various pipelines of the pressure regulating pipeline to the outside of the housing box body.

More specifically, the vent hole or the vent groove is the lower part of the right side of the main cylinder body in fig. 1 and is positioned inside the auxiliary cylinder body, namely, the fuel gas enters the communication hole through the main cylinder body and enters the partial low-pressure chamber at the lower part of the main cylinder body, enters the auxiliary cylinder body attached to one side of the main cylinder body in the vertical direction through the vent hole or the vent groove between the lower part of the right side of the main cylinder body and the auxiliary cylinder body and then enters the outlet pipeline.

In one embodiment, the axial height of the pressure-bearing connecting pipe 9 is greater than the thickness of the upper top plate 8, and the thickness of the side wall of the pressure-bearing connecting pipe 9 is greater than that of the main cylinder. The whole is an independent component, and the machining treatment is carried out after welding, so that the positioning precision is high, the assembly welding with other components is not needed, and the modularized mass production can be realized.

In the embodiment, the common steel plate and steel pipe are welded into a whole, so that the number of weldments and the whole welding amount can be obviously reduced compared with the traditional welding mode of the flange pipe fitting of the steel pipe. Wholly for adopting welding process's independent component, except inside and subassembly such as integrated pressure regulating device, diffusion valve adopt a small amount of flanges, screw thread sealing connection, all the other positions are welded connection, compare and to show in traditional pipe flange and reduce potential leakage point.

In one specific embodiment, the upper top plate 8 is provided with two pressure regulating core mounting holes 19, and the upper end of the pressure-bearing connecting pipe 9 is welded and fixed with the corresponding pressure regulating core mounting holes 19 on the upper top plate 8.

In one embodiment, the two main cylinders are attached to or disposed adjacent to each other.

In the embodiment, the two pressure regulating pipelines arranged in parallel are attached to or close to each other, so that the occupied area of the whole underground gas pressure regulating device can be reduced as much as possible, the size of the outer casing box body can be reduced, and the outer casing box body can be made smaller, so that the material consumption is reduced to save the cost on the premise of ensuring that the three-dimensional space in the outer casing box body is fully utilized.

It should be noted that, an integrated voltage regulation core is installed in each main cylinder, and the two main cylinders are specifically attached, or adjacent ones are more dependent on the specification and model of the selected voltage regulation core.

In one embodiment, the pressure regulating core further comprises a backing plate 29, a plurality of fixing holes are annularly arranged on the outer side of the pressure regulating core mounting hole 19, the backing plate 29 is additionally arranged at the position where the fixing holes are formed in the upper top plate 8, and the same fixing holes are formed in the backing plate 29 and do not interfere with the pressure regulating core.

In this embodiment, compared with the case that the main cylinder and the pressure-bearing top plate are directly welded in other types, the fixing hole for installing the pressure-regulating core is processed on the pressure-bearing top plate, so that the thickness of the pressure-bearing top plate is larger. The thickness can be reduced integrally by adopting the non-pressure-bearing top plate, and only a thickening plate is welded at the position of the fixing hole, so that the material consumption is reduced to reduce the cost.

In one embodiment, the thickness of the top panel 8 is between [15mm,25mm ]; the thickness of the side wall of the main cylinder body is about half of the wall thickness of the pressure-bearing connecting pipe 9, and the two are made of the same material.

In the embodiment, the bearing plates are difficult to purchase, and the non-bearing plates can be made of common steel plates and are easy to purchase, so that the upper top plate 8 of the shell box body is made of the non-bearing steel plates, and the purchase period is reasonably shortened.

In one embodiment, the main cylinder is a hollow cylinder, the auxiliary cylinder is wrapped on the opposite side of the main cylinder communicated with the inlet pipeline 6, and the outlet pipeline 14 is opposite to the inlet pipeline 6.

As shown in fig. 3, in one embodiment, the sub-cylinder is wrapped and disposed at the opposite side of the main cylinder communicating with the inlet pipeline 6, and the outlet pipeline is disposed opposite to the inlet pipeline 6, the main cylinder includes a main cylinder side wall 4 and a partition plate 1, the main cylinder side wall 4 is a hollow cylindrical plate, the bottom is welded and fixed to the bottom of the housing box, a vent or vent groove is formed at the bottom of the main cylinder side wall 4 near the outlet pipeline, the partition plate 1 is welded and fixed to the main cylinder side wall 4 near the bottom, and is matched with the position structure of the main cylinder side wall 4, and the communication hole is formed at the center of the partition plate 1.

In one embodiment, the secondary cylinder covers one side of the primary cylinder and comprises a secondary cylinder closing plate 11, a secondary cylinder side surrounding plate 12 and a bottom secondary cylinder closing plate 3, wherein the secondary cylinder covers the opposite side of the primary cylinder and is coaxial with the primary cylinder, one end of the secondary cylinder closing plate 11 is matched with the structure of the primary cylinder side surrounding plate 4 and is welded and fixed to the outer part of the primary cylinder side surrounding plate 4, the other end of the secondary cylinder closing plate 11 is welded and fixed with the secondary cylinder side surrounding plate 12, the secondary cylinder side surrounding plate 12 is an arc-shaped plate, the radius of the secondary cylinder side surrounding plate 12 is smaller than that of the primary cylinder side surrounding plate 4, the bottom edge of the secondary cylinder side surrounding plate 12 is a straight structure or a convex arc-shaped structure, the lowest end of the secondary cylinder side surrounding plate 12 is welded to the bottom of the housing, the outer edge of the bottom secondary cylinder closing plate 3 close to the inlet pipeline 6 side is matched with the bottom structure of the primary cylinder side surrounding plate 4, the outer edge close to the outlet pipeline side is matched with the bottom structure of the secondary cylinder side surrounding plate 12, namely, and the welding position of the secondary cylinder side surrounding plate close to the bottom of the secondary cylinder is fixed with the bottom of the secondary cylinder.

In this embodiment, the structure of the secondary barrel side surrounding plate 12 may be a half cylinder structure buckled outside the primary barrel side surrounding plate 4, or may be a hemisphere structure buckled on the primary barrel side surrounding plate 4, and the bottom edge of the secondary barrel side surrounding plate 12 may be a straight structure, that is, the bottom secondary barrel sealing plate 3 is a straight plate, or the bottom of the secondary barrel side surrounding plate is a convex arc structure, and the bottom secondary barrel sealing plate 3 is an arc plate matched with the bottom of the secondary barrel side surrounding plate 12.

In one embodiment, the outlet pipeline 14 is upwardly communicated with a diffusing pipeline, the upper top plate 8 is provided with two diffusing holes, the diffusing pipeline penetrates through the diffusing holes to be communicated to the outside of the shell box body, the outlet pipeline 14 is upwardly communicated with a pressure taking pipeline, the upper top plate 8 is provided with two pressure taking holes, and the pressure taking pipeline penetrates through the pressure taking holes to be communicated to the outside of the shell box body.

The utility model provides a compound barrel formula double-circuit underground gas pressure regulating box's outer box structure is formed by steel tube sheet welding process, is equipped with import manifold 23, inlet valve 22, inlet pipeline 6, high-pressure chamber 7, low pressure chamber 17, pressure pipe 24, diffuses pipe 13, outlet pipe 14, outlet valve 26, export manifold 27. The inlet manifold 23 is connected to an inlet valve 22, the inlet valve 22 is connected to the inlet line 6, the outlet line 14 is connected to an outlet valve 26, and the outlet valve 26 is connected to an outlet manifold 27. The high-pressure chamber 7 provides an installation space for the integrated pressure regulating core, and the low-pressure chamber 17 is connected with the pressure taking pipe and the diffusing pipe to provide the outlet pressure required by the integrated pressure regulating core and the diffusing pipeline 13.

The pipe network fuel gas flows in from an inlet manifold 23, enters a high-pressure chamber 7 through an inlet valve 22 and an inlet pipeline 6, enters a low-pressure chamber 17 after being filtered and regulated by an integrated pressure regulating core, and finally flows out of a pressure regulating box through an outlet pipeline 14, an outlet valve 26 and an outlet manifold 27, and the direction of the air flow is shown by arrows in the figure. The pressure sampling pipe provides a pressure signal required by pressure regulation, the bleeding pipe 13 is connected with a bleeding valve, and the bleeding valve releases pressure to protect gas equipment when the outlet pressure is too high.

In one embodiment, the communication hole extends towards the top of the main cylinder and is provided with a positioning ring 2.

In this embodiment, the two main cylinders, the auxiliary cylinders and the related accessories are configured in the same way, and the two integrated voltage regulating cores can be mounted and configured in the same way, so that the common configuration of 'one on one standby' in one box body is realized. The intercommunicating pore that sets up on the division board 1 upwards extends has one section mount table, and welded fastening holding ring 2 on the mount table, perhaps can be directly at the corresponding position of division board 1 and directly weld holding ring 2 so that fix a position integrated pressure regulating core when the installation.

In one embodiment, a connecting pipe 9 is welded at one end of the main barrel, a barrel sealing plate 3 is welded at the other end of the main barrel, a partition plate 1 is welded inside the main barrel, an inlet pipeline 6 is welded at the opening of the barrel, and an auxiliary barrel is welded at the other side of the barrel. And a positioning ring 2 is welded on the partition plate 1. One side of the auxiliary cylinder body is welded with an auxiliary cylinder body seal plate 11, one side of the auxiliary cylinder body is welded with a cylinder body seal plate 3, and the cylinder body is provided with a hole and welded with an outlet pipeline 14.

The main cylinder side surrounding plate 4, the connecting pipe 9, the partition plate 1, the bottom auxiliary cylinder body sealing plate 3, the auxiliary cylinder body side surrounding plate 12, the auxiliary cylinder body sealing plate 11, the inlet pipeline 6 and the outlet pipeline 14 jointly form a complete pressure regulating pipeline.

Two groups of identical cylinder assemblies are welded on the upper top plate 8, two groups of identical pressure taking outer pipes 28 and relief pipes 13 are welded between the upper top plate 8 and the outlet pipeline 14, and pressure taking inner pipes 29 are welded in the outlet pipeline 14.

It is to be noted here that the main cylinder side shroud 4 is welded at its bottom to the bottom of the housing case, and its interior includes a high pressure chamber located at the upper portion and a partial low pressure chamber located at the lower portion, separated by the partition plate 1 provided at a position near the bottom of the main cylinder side shroud 4, and the high pressure chamber 7 is ensured to communicate with the low pressure chamber 17, as it is, in the main cylinder side shroud 4: the regional high pressure chamber 7 that is between inlet line 6 to division board 1 holds integrated pressure regulating core main part, and vice barrel side bounding wall 12, vice barrel shrouding 11 and the vice barrel shrouding 3 of bottom constitute low pressure chamber 17 together with main barrel side bounding wall 4 wall part altogether, and division board 1 is regional low pressure chamber 17, also can say to 14 intervals of outlet line: the lower chamber of the main cylinder and all the chambers of the secondary cylinders together constitute a total low pressure chamber 17.

Go up processing instrument box mounting hole 18 on the roof 8, mountable instrument box, the integrated pressure regulating core mounting hole 19 of processing, the integrated pressure regulating core of mountable, sealed face 10 in the processing, accessible installation rubber seal realizes going up the roof 8 promptly and integrated pressure regulating core between sealed.

The lower sealing surface 20 is processed in the inner area of the upper positioning ring 2 of the division plate 1, and the integrated pressure regulating core and the division plate 1 can be sealed by installing a rubber sealing gasket.

The positioning ring 2 is provided with a tool mounting hole 21, a pressure testing tool can be mounted to seal an outlet hole on the partition plate 1, a corresponding pressure testing tool can be mounted on the integrated pressure regulating core mounting hole 19, and the high-pressure chamber 7 and the low-pressure chamber 17 can be respectively subjected to pressure bearing strength testing after the inlet pipeline 6 and the outlet pipeline 14 are welded with the inlet and outlet valves.

One end of the pressure measuring outer pipe 28 is connected with the pressure measuring inner pipe 29, and the other end is provided with a pressure measuring hole 29. The pressure taking hole 29 is provided with a pressure taking part, so that the steady flow pressure formed by the long straight pipe section in the outlet pipeline 14 can be accurately transmitted to the integrated pressure regulating core.

One end of the diffusing pipeline 13 is connected with the low-pressure chamber 17, the other end of the diffusing pipeline is provided with a diffusing hole 25, and when the outlet pressure of the pressure regulating device is too high, the pressure can be relieved through the diffusing pipeline 13 and then through a diffusing valve, so that the safety operation of equipment is protected.

An inlet outer frame plate 5 and an outlet outer frame plate 15 are welded around the upper top plate 8, through which the inlet pipe 6 and the outlet pipe 14 pass, respectively. The lower bottom plate 16 is welded below the inlet outer frame plate 5 and the outlet outer frame plate 15, the pressure-bearing cylinder assembly and the pipeline are enclosed by the two frame plates and the bottom plate, the pressure-bearing cylinder and the pipeline are not in contact with soil to reduce corrosion under the buried working condition, and the underground buried pipeline pressure-bearing device is suitable for buried arrangement. The inlet outer frame plate 5 and the outlet outer frame plate 15 are made of thick steel plates, can protect the internal pressure-bearing cylinder pipelines, can support the whole, can effectively bear the extrusion of surrounding soil to the inlet outer frame plate and the load brought by treading and rolling of pedestrians and vehicles above the inlet outer frame plate and the outlet outer frame plate, and simultaneously reduces the tensile force of the dead weight of a pipe network to the welding seams between the inlet and outlet pipes and the cylinder assemblies to ensure the safe operation of equipment.

An inlet valve 22 is welded on the outer side of the inlet pipeline 6, the inlet valve 22 is welded with an inlet header 23, an outlet valve 26 is welded on the outer side of the outlet pipeline 14, and the outlet valve 26 is welded with an outlet header 27. The inlet and outlet manifolds 23 each have a port for connection to a pipe network, and the manifolds and valves can be welded in a factory, so that the field welding workload of the equipment is reduced.

Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An outer box structure of a composite cylinder type double-way underground gas pressure regulating box is characterized by comprising an outer box body and a pressure regulating pipeline;

the number of the pressure regulating pipelines is two, the pressure regulating pipelines are arranged in parallel, and the shell box body covers the two pressure regulating pipelines;

the pressure regulating pipeline comprises a main cylinder and an auxiliary cylinder;

the upper part of the main cylinder body is open, a high-pressure chamber positioned above and a part of low-pressure chamber positioned below are arranged in the main cylinder body, the main cylinder body is communicated with the inlet pipeline, and communication holes are formed between the high-pressure chamber and the part of the low-pressure chamber;

the auxiliary cylinder body is arranged on one side of the main cylinder body, the inside of the auxiliary cylinder body is the low-pressure chamber of the rest part communicated with part of the low-pressure chamber, the auxiliary cylinder body is communicated with part of the low-pressure chamber in the main cylinder body through an air vent or an air vent groove arranged on the main cylinder body, and the low-pressure chamber is communicated with an outlet pipeline;

and a pressure-bearing connecting pipe is arranged above each main cylinder body, the upper end of each pressure-bearing connecting pipe is hermetically connected with the upper top plate of the shell box body, and the lower end of each pressure-bearing connecting pipe is matched with the opening of each main cylinder body and is hermetically connected with the upper part of the side wall of each main cylinder body.

2. The outer box structure of the composite cylinder type double-way underground gas pressure regulating box as claimed in claim 1, wherein the axial height of the pressure-bearing connecting pipe is greater than the thickness of the upper top plate;

the thickness of the side wall of the pressure-bearing connecting pipe is larger than that of the side wall of the main cylinder.

3. The outer box structure of the composite cylinder type double-way underground gas pressure regulating box according to claim 1, wherein the upper top plate is provided with two pressure regulating core mounting holes, and the upper end of the pressure-bearing connecting pipe is welded and fixed with the corresponding pressure regulating core mounting holes on the upper top plate.

4. The outer box structure of the composite cylinder type double-channel underground gas pressure regulating box as claimed in claim 1, wherein the two main cylinders are attached or arranged close to each other.

5. The outer box structure of the composite cylinder type double-way underground gas pressure regulating box according to claim 3, further comprising a backing plate;

a plurality of fixing holes are annularly formed in the outer side of the pressure regulating core mounting hole, and the backing plates are additionally arranged at the positions, where the fixing holes are formed, of the upper top plate;

the backing plate is provided with the same fixing holes and does not interfere with the pressure regulating core.

6. The outer box structure of the composite barrel type double-path underground gas pressure regulating box as claimed in claim 2, wherein the thickness of the upper top plate is between [15mm,25mm ];

the thickness of the side wall of the main cylinder body is about half of the wall thickness of the pressure-bearing connecting pipe, and the two are made of the same material.

7. The outer box structure of the composite cylinder type two-way underground gas pressure regulating box according to any one of claims 1 to 5, wherein the auxiliary cylinder is wrapped and arranged at the opposite side of the main cylinder communicated with the inlet pipeline, and the outlet pipeline and the inlet pipeline are oppositely arranged;

the main cylinder body comprises a main cylinder body side wall plate and a partition plate;

the main cylinder side wall plate is a cylindrical plate with a hollow inner part, the bottom of the main cylinder side wall plate is welded and fixed to the bottom of the shell box body, and the vent hole or the vent groove is formed in the position, close to one side of the outlet pipeline, of the bottom of the main cylinder side wall plate;

the partition plate is welded and fixed to a position, close to the bottom, of the side wall plate of the main cylinder body, the position of the side wall plate of the main cylinder body is matched in structure, and the communication hole is formed in the center of the partition plate.

8. The outer box structure of the composite cylinder type two-way underground gas pressure regulating box according to claim 7, wherein the side of the main cylinder covered by the auxiliary cylinder comprises an auxiliary cylinder sealing plate, an auxiliary cylinder side wall plate and a bottom auxiliary cylinder sealing plate, which are connected with the main cylinder in a sealing manner, and the opposite side of the main cylinder covered by the auxiliary cylinder is co-walled with the main cylinder;

one end of the auxiliary cylinder body sealing plate is matched with the structure of the main cylinder body side enclosing plate and is welded and fixed outside the main cylinder body side enclosing plate, and the other end of the auxiliary cylinder body sealing plate is welded and fixed with the auxiliary cylinder body side enclosing plate;

the side wall plate at the side of the auxiliary cylinder body is an arc-shaped plate, the radius of the side wall plate at the side of the auxiliary cylinder body is smaller than that of the side wall plate at the side of the main cylinder body, the bottom edge of the side wall plate at the side of the auxiliary cylinder body is of a straight structure or a convex arc-shaped structure, and the lowest end of the side wall plate at the side of the auxiliary cylinder body is welded to the bottom of the outer shell box body;

the outer edge of the bottom auxiliary cylinder body sealing plate close to the inlet pipe side is matched with the bottom structure of the main cylinder body side enclosing plate, the outer edge of the bottom auxiliary cylinder body sealing plate close to the outlet pipe side is matched with the bottom structure of the auxiliary cylinder body side enclosing plate, namely, part of the bottom auxiliary cylinder body sealing plate is welded and fixed with the position, close to the bottom, of the main cylinder body side enclosing plate, and the rest of the bottom auxiliary cylinder body sealing plate is welded and fixed with the position, close to the bottom, of the auxiliary cylinder body side enclosing plate.

9. The outer box structure of the composite barrel type two-way underground gas pressure regulating box according to any one of claims 1 to 5, wherein a diffusing pipeline is communicated with the upper part of the outlet pipeline, two diffusing holes are formed in the upper top plate, and the diffusing pipeline is communicated to the outside of the outer box body through the diffusing holes;

the outlet pipeline is upwards communicated with a pressure taking pipeline, the upper top plate is provided with two pressure taking holes, and the pressure taking pipelines penetrate through the pressure taking holes to be communicated to the outside of the shell box body.

10. The outer box structure of the composite cylinder type two-way underground gas pressure regulating box according to claim 7, wherein the communication hole extends in the direction of the top of the main cylinder and is provided with a positioning ring.