CN114738588A

CN114738588A - Outer box structure of composite barrel type single-way underground gas pressure regulating box

Info

Publication number: CN114738588A
Application number: CN202210482618.0A
Authority: CN
Inventors: 王翔宇
Original assignee: Tianjin Chris Gas Equipment Co ltd
Current assignee: Tianjin Chris Gas Equipment Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-07-12

Abstract

The application relates to an outer box structure of a composite cylinder type single-way underground gas pressure regulating box, which comprises a main cylinder body, an auxiliary cylinder body, an upper top plate, a lower bottom plate and a supporting plate. A second air outlet hole is formed in one side of the lower end of the main cylinder body, and a pipeline inlet is formed in the side wall of the main cylinder body. The upper top plate and the lower bottom plate are connected to the upper part and the lower part of the cylinder wall of the main cylinder body. The bearing plate is arranged above the second air outlet, the edge of the bearing plate is connected with the inner wall of the main cylinder body in a sealing mode, and the bearing plate is provided with a first air outlet. The upper end and the lower end of the cylinder wall of the auxiliary cylinder body are respectively connected with the upper top plate and the lower bottom plate in a sealing way, one side end of the auxiliary cylinder body is connected with one side of the main cylinder body, which is provided with a second air outlet hole in a sealing way, the auxiliary cylinder body surrounds the second air outlet hole, and the other side of the auxiliary cylinder body is provided with a pipeline outlet. The high-pressure cavity and the low-pressure cavity are arranged in the main cylinder body in an up-and-down structure mode, and only the support plate needs to be connected in the main cylinder body in a sealing mode, and then the auxiliary cylinder body is connected with the main cylinder body in a sealing mode. Simple structure, rationally distributed, processing is convenient, can effectively reduce the degree of difficulty of installation processing, and can set up the structure of vice barrel in a flexible way.

Description

Outer box structure of composite barrel type single-way underground gas pressure regulating box

Technical Field

The application relates to a gas pressure regulating equipment field especially relates to an outer box structure of compound barrel formula one-way underground gas pressure regulating box.

Background

Along with the development of economic society, the fuel gas is widely applied and is also widely applied as a necessary fuel gas pressure regulating box in a fuel gas transmission and distribution system. The overground pressure regulating box occupies large overground space, has large requirement on safety distance, and has larger difficulty in site selection on the land for urban construction with low requirement on safety distance.

The gas underground pressure regulating box is generally internally provided with a high-pressure cavity and a low-pressure cavity, and the structure and the processing of a gas underground pressure regulating box shell box body can be influenced by the difference of the setting modes of the high-pressure cavity and the low-pressure cavity, so that the high-pressure cavity and the low-pressure cavity need to be reasonably distributed.

Disclosure of Invention

In view of this, the present application provides a layout that is reasonable and convenient for processing and assembling.

According to an aspect of the application, a outer box structure of compound barrel formula one way underground gas pressure regulating box is provided, includes:

the device comprises a main cylinder, an auxiliary cylinder, an upper top plate, a lower bottom plate and a supporting plate;

the main cylinder body is of a hollow structure, a second air outlet hole is formed in one side of the lower end of the main cylinder body, and a pipeline inlet is formed in the side wall of the main cylinder body and is suitable for being connected with a fuel gas input pipeline;

the upper top plate cover is arranged above the main cylinder body and is in sealing connection with the upper part of the cylinder wall of the main cylinder body;

the lower bottom plate is arranged below the main cylinder body and is in sealing connection with the lower part of the cylinder wall of the main cylinder body;

the support plate is arranged above the second air outlet, the edge of the support plate is connected with the inner wall of the main cylinder body in a sealing manner, and the support plate is provided with a first air outlet;

the auxiliary cylinder body is of a hollow structure, the upper end and the lower end of the cylinder wall of the auxiliary cylinder body are respectively in sealing connection with the upper top plate and the lower bottom plate, one side end of the auxiliary cylinder body is in sealing connection with one side of the main cylinder body, which is provided with the second air outlet hole, surrounds the second air outlet hole, and the other side end of the auxiliary cylinder body is provided with a pipeline outlet which is suitable for being connected with a fuel gas output pipeline.

In a possible implementation manner, a pressure-bearing connecting pipe is arranged above the main cylinder, and the upper top plate is connected with the main cylinder through the pressure-bearing connecting pipe; the upper end of the pressure-bearing connecting pipe is connected with the upper top plate in a sealing mode, a pressure regulating core mounting hole is formed in the upper top plate, the upper end of the pressure-bearing connecting pipe is welded and fixed to the position of the pressure regulating core mounting hole, and the lower end of the pressure-bearing connecting pipe is matched with the opening of the main barrel body and is welded and fixed above the side wall of the main barrel body.

In a possible implementation manner, 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 upper top plate.

In one possible implementation, the cross section of the main cylinder is circular; the cross section of the auxiliary cylinder body is circular;

the diameter of the main cylinder is larger than that of the auxiliary cylinder.

In a possible implementation manner, the second air outlet and the first air outlet are both circular holes;

and a gap is arranged at the second air outlet.

In a possible implementation manner, the support plate is circular, and the first air outlet hole is formed in the center of the support plate.

In one possible implementation, the device further comprises an inlet joint and an outlet joint;

the inlet joint is arranged at the pipeline inlet and communicated with the main cylinder body; the outlet joint is arranged at the outlet of the pipeline and communicated with the auxiliary cylinder body.

In a possible implementation manner, the device further comprises a positioning ring; the positioning ring is of a hollow structure and is communicated with the first air outlet;

one end of the positioning ring is fixedly connected to the supporting plate;

and one end of the positioning ring, which is not fixedly connected with the supporting plate, is provided with a tool mounting hole and a first groove.

In a possible implementation manner, the device further comprises a rib plate; the rib plates are arranged at the connecting position of the inlet joint and the main cylinder body and the connecting position of the outlet joint and the auxiliary cylinder body.

In a possible implementation manner, the device further comprises a pressure taking inner pipe and a pressure taking outer pipe; the upper top plate is provided with a pressure taking hole;

one end of the pressure measuring inner pipe is arranged in the outlet joint, and the other end of the pressure measuring inner pipe penetrates through the outlet joint and is fixedly connected with the pressure measuring outer pipe; and one end of the pressure taking outer pipe, which is not connected with the pressure taking inner pipe, is communicated with the pressure taking hole.

In a possible implementation manner, the device further comprises a diffusing connecting pipe and a noise reduction pipe;

the upper top plate is provided with a dispersion hole; one end of the diffusion connecting pipe is communicated with the auxiliary cylinder body, and the other end of the diffusion connecting pipe is communicated with the diffusion hole and is suitable for installing a diffusion valve;

the noise reduction pipe is fixedly connected with the lower bottom plate, and the connecting position of the noise reduction pipe is located right below the first air outlet on the supporting plate.

In a possible implementation manner, an integrated voltage regulating core fixing hole, an integrated voltage regulating core mounting hole and an instrument box mounting hole are formed in the upper top plate;

the integrated voltage regulating core fixing hole is suitable for a fixed phase matching integrated voltage regulating core; a second groove is formed in the integrated pressure regulating core fixing hole;

the integrated pressure regulating core mounting holes are arranged around the pressure regulating core fixing hole at equal intervals;

the instrument box body mounting holes are formed in the edge of the upper top plate at equal intervals.

Through the overall arrangement mode that adopts upper and lower structure with high-pressure chamber and low pressure chamber in main barrel, the outer box structure of a compound barrel formula one-way underground gas pressure regulating box of this application embodiment only needs sealing connection bearing plate in main barrel, again with vice barrel and main barrel sealing connection can. Simple structure, rationally distributed, processing is convenient, can effectively reduce the degree of difficulty of installation processing, and can set up the structure of vice barrel in a flexible way.

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 single-channel underground gas pressure regulating box according to an embodiment of the present application;

FIG. 2 is a top view of an outer box structure of a composite cylinder type single-channel underground gas pressure regulating box according to an embodiment of the present application;

fig. 3 shows a right side view of the outer box structure of the composite cylinder type single-way underground gas pressure regulating box according to the embodiment of the present application;

FIG. 4 shows a side cross-sectional view of an outer box structure of a composite cylinder type single-channel underground gas pressure regulating box according to an embodiment of the present application;

fig. 5 shows a front cross-sectional view of an outer box structure of a composite cylinder type single-channel underground gas pressure regulating tank according to another 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 or simplifying the 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 thus should not be considered as limiting the invention.

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 implicitly indicating 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 invention, "a plurality" means two or more unless specifically defined 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 to 5 show a front cross-sectional view of an outer box structure of a composite cylinder type single-way underground gas pressure regulating box, a top view of the outer box structure of the composite cylinder type single-way underground gas pressure regulating box, a right view of the outer box structure of the composite cylinder type single-way underground gas pressure regulating box, a side cross-sectional view of the outer box structure of the composite cylinder type single-way underground gas pressure regulating box, and a front cross-sectional view of the outer box structure of the composite cylinder type single-way underground gas pressure regulating box according to another embodiment of the present application. As shown in fig. 1 to 5, the outer box structure of the composite cylinder type single-way underground gas pressure regulating box comprises: the device comprises a main cylinder 6, an auxiliary cylinder 9, an upper top plate 7, a lower bottom plate 1 and a support plate 3. The main cylinder body 6 is of a hollow structure, a second air outlet hole is formed in one side of the lower end of the main cylinder body, and a pipeline inlet is formed in the side wall of the main cylinder body and is suitable for being connected with a fuel gas input pipeline. The upper top plate 7 is covered above the main cylinder 6 and is connected with the upper part of the cylinder wall of the main cylinder 6 in a sealing way. The lower bottom plate 1 is arranged below the main cylinder 6 and is connected with the lower part of the cylinder wall of the main cylinder 6 in a sealing way. The bearing plate 3 is arranged above the second air outlet, the edge of the bearing plate is connected with the inner wall of the main cylinder body 6 in a sealing way, and the bearing plate 3 is provided with a first air outlet 23. The auxiliary cylinder 9 is of a hollow structure, the upper end and the lower end of the cylinder wall of the auxiliary cylinder 9 are respectively connected with the upper top plate 7 and the lower bottom plate 1 in a sealing mode, the side end of the auxiliary cylinder is connected with one side of the main cylinder 6, which is provided with a second air outlet hole in a sealing mode, surrounds the second air outlet hole, and the other side end of the auxiliary cylinder is provided with a pipeline outlet which is suitable for being connected with a fuel gas output pipeline.

Therefore, the outer box structure of the composite cylinder type single-way underground gas pressure regulating box in the embodiment of the application refers to fig. 1, fig. 3 and fig. 4. When in processing, a second air outlet is arranged at the lower end of the main cylinder body 6, then the support plate 3 is placed above the second air outlet arranged in the main cylinder body 6, and the support plate 3 is hermetically connected with the inner wall of the main cylinder body 6. Then, the upper top plate 7 is covered above the main cylinder 6 and is connected with the upper part of the main cylinder 6 in a sealing way, and the lower bottom plate 1 is arranged below the main cylinder 6 and is connected with the lower part of the main cylinder 6 in a sealing way. The upper fixed top plate 7, the lower bottom plate 1 and the main cylinder body 6 are surrounded to form a cavity, one cavity is divided into two parts through the support plate 3, the upper end of the cavity is a high-pressure cavity 8 suitable for containing an integrated pressure regulating core for pressure regulation, the lower end of the cavity is a low-pressure cavity 12 suitable for conveying gas after pressure regulation, and the two cavities are communicated through a first air outlet hole 23 in the support plate 3. The auxiliary cylinder 9 is of a hollow structure, the upper end and the lower end of the cylinder wall of the auxiliary cylinder 9 are both connected with the upper top plate 7 and the lower bottom plate 1 in a sealing mode, the side end of the auxiliary cylinder 9 is connected with one side of the main cylinder 6, which is provided with a second air outlet hole in a sealing mode, and a cavity formed by the auxiliary cylinder 9, the upper top plate 7 and the lower bottom plate 1 in an enclosing mode is communicated with the low-pressure cavity 12 through the second air outlet hole. When the gas-liquid separator is used, gas enters the high-pressure cavity 8 from the inlet of the pipeline, is subjected to pressure regulation by the integrated pressure regulating core, enters the low-pressure cavity 12 through the first gas outlet hole 23, then enters the auxiliary cylinder 9 through the second gas outlet hole, and finally is output through the outlet of the pipeline. By adopting the layout mode of the upper and lower structures of the high-pressure cavity 8 and the low-pressure cavity 12 in the main cylinder body 6, the support plate 3 is only required to be connected in the main cylinder body 6 in a sealing way, and then the auxiliary cylinder body 9 is connected with the main cylinder body 6 in a sealing way. Simple structure, rationally distributed, processing is convenient, can effectively reduce the degree of difficulty of installation processing, and can set up the structure of vice barrel 9 in a flexible way.

In actual processing and production, the main cylinder 6 and the auxiliary cylinder 9 can be supported by thick-wall steel pipes, and can bear the internal gas pressure, the extrusion of external soil and the load of devices such as an upper integrated pressure regulating core.

It should be further noted that the sealing connection manner adopted in the embodiments of the present application can be implemented by using the prior art, for example, by welding, which is not described herein again.

In a possible implementation manner, referring to fig. 3 and fig. 4, the cross section of the main cylinder 6 is circular, and the cross section of the auxiliary cylinder 9 is circular, that is, the main body of the gas underground pressure regulating tank of the embodiment of the present application is a composite cylinder type outer shell tank body composed of two cylinders. The main cylinder body 6 and the auxiliary cylinder body 9 are cylindrical, so that the integrated pressure regulating core is more convenient to place compared with the cylinder bodies with other shapes, and the occupied space is smaller.

It should be noted that the shape of the cross section of the main cylinder 6 and the shape of the cross section of the auxiliary cylinder 9 are not limited to circular, and may also be other shapes, such as square, etc., as long as the requirements can be met, and no further description is provided herein.

Further, the diameter of the main cylinder 6 is larger than that of the sub cylinder 9. The main cylinder body 6 mainly acts on setting the high-pressure cavity 8 and the low-pressure cavity 12 and placing the integrated pressure regulating core, and the auxiliary cylinder body 9 mainly acts on surrounding the second air outlet hole and providing a communicated channel for the low-pressure cavity 12 and the fuel gas output pipeline. Therefore, the diameter of the auxiliary cylinder 9 is designed to be smaller than that of the main cylinder 6, and the occupied space and the material cost can be effectively reduced.

In one possible implementation, referring to fig. 1 and 4, the second outlet hole and the first outlet hole 23 are both circular holes. A gap 24 is provided at the second air outlet. Specifically, the position of the notch 24 is located at the connecting position of the main cylinder 6 and the lower base plate 1. Set up breach 24 and compare in setting up the processing of being convenient for more of second venthole, and save material more, effectively the cost is reduced.

It should be noted that the shape of the outlet may be rectangular, circular, etc., and may be flexibly changed according to the actual situation.

In a possible implementation manner, a pressure-bearing connecting pipe 26 is arranged above the main cylinder 6, and the upper top plate 7 is connected with the main cylinder 6 through the pressure-bearing connecting pipe 26; wherein, the upper end and the last roof 7 sealing connection of pressure-bearing connecting pipe 6 have seted up integrated pressure regulating core mounting hole 1425 of integrated pressure regulating core on the last roof 7, and the upper end welded fastening of pressure-bearing connecting pipe 6 is to the integrated pressure regulating core mounting hole 142525 position department of integrated pressure regulating core, and the lower extreme matches with the uncovered phase-match of main barrel 6, and with the lateral wall top welded fastening of main barrel 6.

Furthermore, the pressure-bearing connecting pipe 26 can be additionally arranged at the upper opening of the main cylinder 6 and is fixedly connected to the upper top plate 7 of the shell box body as a connecting piece through the pressure-bearing connecting pipe 26, the upper top plate 8 of the shell box body in the mode does not need to bear more gravity from installation of the integrated pressure regulating core, the main weight of the integrated pressure regulating core required to be installed can be borne through the pressure-bearing connecting pipe 26 with larger thickness, and according to the arrangement, the welding seam between the upper top plate 7 and the main cylinder 6 can be only a structural welding seam, so that the fixed connection of the upper top plate and the main cylinder can be ensured without a pressure-bearing welding seam, the welding requirement is low, and the operation of technicians in the field is easy.

In one of the specific embodiments, the upper top plate 7 has a thickness of between [15mm, 25mm ]; the thickness of the side wall of the main cylinder 6 is about half of the wall thickness of the pressure-bearing connecting pipe 26, 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 7 made of the non-bearing steel plates is beneficial to reasonably reducing the purchase period.

Still include the backing plate, the outside ring of integrated pressure regulating core mounting hole 1425 is equipped with a plurality of integrated pressure regulating core mounting holes 14, and the position department that goes up roof 7 and offered integrated pressure regulating core mounting hole 14 has all increased and has been equipped with the backing plate, has seted up the same integrated pressure regulating core mounting hole 14 on the backing plate, and does not interfere with the pressure regulating core mutually.

In this embodiment, compared with the technical scheme of directly welding the main cylinder 6 and the upper top plate 7, the integrated pressure regulating core mounting hole 14 for mounting 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 after the non-pressure-bearing top plate is adopted, and only a thickening plate is welded at the position of the integrated pressure regulating core mounting hole 14, so that the material consumption is reduced to reduce the cost.

In a possible realisation, the axial height of the pressure-bearing connecting pipe 26 is greater than the thickness of the upper top plate 7; the thickness of the side wall of the pressure-bearing connecting pipe 26 is larger than that of the upper top plate 7.

In one embodiment, the axial height of the pressure-bearing connecting pipe 26 is greater than the thickness of the upper top plate 7, and the thickness of the side wall of the pressure-bearing connecting pipe 26 is greater than that of the main cylinder 6. 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.

Adopt common steel sheet steel pipe welding to process into an organic whole, can show reduction weldment quantity and whole welding volume for traditional steel pipe flange pipe fitting welding mode. 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 a possible realization, with reference to fig. 1 and 4, the support plate 3 is circular and the first outlet aperture 23 opens in the central position of the support plate 3. The first air outlet hole 23 is formed in the center of the support plate 3, so that fuel gas can enter the low-pressure cavity 12 from the high-pressure cavity 8 more uniformly, and the support plate 3 can be processed more conveniently. Meanwhile, a certain positioning effect is achieved when the integrated voltage regulating core is installed.

In one possible implementation, referring to fig. 1 and 2, an inlet connection 5 and an outlet connection 10 are also included. And the inlet joint 5 is arranged at the pipeline inlet and is communicated with the main cylinder 6. And the outlet joint 10 is arranged at the outlet of the pipeline and communicated with the auxiliary cylinder 9. Specifically, the inlet joint 5 and the main cylinder 6 are connected by welding, and the outlet joint 10 and the auxiliary cylinder 9 are connected by welding. The outlet joint 10 and the inlet joint 5 are both made of the same pipe fitting, and have the same vertical distance from the lower bottom plate 1, so that the conveying performance is good.

In a possible implementation manner, referring to fig. 1, the positioning device further includes a positioning ring 4, and the positioning ring 4 is of a hollow structure and is communicated with the first air outlet 23. One end of the positioning ring 4 is fixedly connected to the support plate 3, and a tool mounting hole 17 and a first groove 16 are formed in the end, which is not fixedly connected with the support plate 3, of the positioning ring 4. Through setting up holding ring 4, be convenient for fix a position the alignment when the integrated pressure regulating core of installation. Through setting up frock mounting hole 17, can install the first venthole 23 of pressure test frock in order to set up on the closed bearing plate 3, the cooperation is installed the inlet valve on the inlet connection 5 and is exported the valve on the connector 10, can carry out the bearing strength test to high pressure chamber 8 and low pressure chamber 12 respectively. By arranging the first groove 16 and using the groove bottom of the first groove 16 as a lower sealing surface, a rubber pad can be arranged to realize the sealing between the integrated pressure regulating core and the support plate 3.

In a possible implementation, referring to fig. 1, a rib plate 11 is further included, and the rib plate 11 is arranged at the connection position of the inlet joint 5 and the main cylinder 6 and at the connection position of the outlet joint 10 and the auxiliary cylinder 9. Specifically, the connection mode adopts welding. Through setting up gusset 11, can reduce the pulling force of pipeline to welding seam between main cylinder 6 and inlet joint 5 and vice cylinder 9 and outlet joint 10 after shell box and outside gas pipeline welding, improve factor of safety.

In a possible implementation manner, referring to fig. 1, 3 and 4, the pressure measuring device further includes a pressure measuring inner tube 22 and a pressure measuring outer tube 20, and the upper top plate 7 is provided with a pressure measuring hole 19. Specifically, one end of the pressure measuring inner tube 22 is disposed in the outlet connector 10, and the other end thereof penetrates through the outlet connector 10 and is fixedly connected with the pressure measuring outer tube 20, and the end of the pressure measuring outer tube 20, which is not connected with the pressure measuring inner tube 22, is communicated with the pressure measuring hole 19.

In one possible implementation, referring to fig. 1, 3 and 4, a diffuser pipe 21 and a noise reduction pipe 2 are also included. The upper top plate 7 is provided with a diffusion hole 18, one end of the diffusion connecting pipe 21 is communicated with the auxiliary cylinder 9, and the other end is communicated with the diffusion hole 18, so that the diffusion valve is suitable for installation. Through setting up the even pipe 21 of diffusing, the cooperation is diffused the valve, can diffuse the gas when pressure surpasss the limit value, has improved the security of shell box.

The noise reduction pipe 2 is fixedly connected with the lower base plate 1, and the connecting position is positioned right below the first air outlet hole 23 on the bearing plate 3. Through setting up the pipe 2 of making an uproar, can effectively reduce the noise that integrated pressure regulating core export turbulent flow brought.

In a possible implementation manner, referring to fig. 2, the upper top plate 7 is provided with an integrated voltage regulating core fixing hole 25, an integrated voltage regulating core mounting hole 14 and an instrument box mounting hole 13. The integrated voltage regulating core fixing hole 25 is suitable for a fixed phase matching integrated voltage regulating core.

Further, a second groove 15 is formed in the integrated pressure regulating core fixing hole 25, specifically, the bottom of the second groove 15 serves as an upper sealing surface, and the integrated pressure regulating core and the upper top plate 7 can be sealed through installing a rubber ring.

Further, the integrated voltage regulating core mounting holes 14 are arranged around the integrated voltage regulating core fixing hole 25 at equal intervals. Specifically, the number of the integrated voltage regulating core mounting holes 14 is 4-8, and the integrated voltage regulating core mounting holes are distributed beside the integrated voltage regulating core fixing holes 25 at equal intervals.

Instrument box mounting hole 13 is seted up at the edge of last roof 7 equidistant, is applicable to the installation instrument box, and is concrete, and the number of instrument box mounting hole 13 is 20.

It should be noted that, although the outer box structure of the composite cylinder type single-way underground gas pressure regulating tank is described above by taking fig. 1 to fig. 4 as an example, those skilled in the art can understand that the present application should not be limited thereto. In fact, the user can flexibly set the structure according to personal preference and/or actual application scenes, as long as the design is reasonable.

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 was chosen in order to best explain the principles of the embodiments, the practical application, or improvements to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. The utility model provides a compound barrel formula single pass underground gas pressure regulating box's outer box structure which characterized in that includes:

the lower bottom plate is arranged below the main cylinder and is in sealing connection with the lower part of the cylinder wall of the main cylinder;

the auxiliary cylinder body is of a hollow structure, the upper end and the lower end of the cylinder wall of the auxiliary cylinder body are respectively connected with the upper top plate and the lower bottom plate in a sealing mode, one side end of the auxiliary cylinder body is connected with one side, provided with the second air outlet hole, of the main cylinder body in a sealing mode and surrounds the second air outlet hole, and the other side end of the auxiliary cylinder body is provided with a pipeline outlet which is suitable for being connected with a fuel gas output pipeline.

2. The outer box structure of the composite cylinder type single-channel underground gas pressure regulating box according to claim 1, wherein a pressure-bearing connecting pipe is arranged above the main cylinder, and the upper top plate is connected with the main cylinder through the pressure-bearing connecting pipe;

the upper end of the pressure-bearing connecting pipe is connected with the upper top plate in a sealing mode, a pressure regulating core mounting hole is formed in the upper top plate, the upper end of the pressure-bearing connecting pipe is welded and fixed to the position of the pressure regulating core mounting hole, and the lower end of the pressure-bearing connecting pipe is matched with the opening of the main barrel body and is welded and fixed above the side wall of the main barrel body.

3. The outer box structure of the composite cylinder type single-channel underground gas pressure regulating box according to claim 2, 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 upper top plate.

4. The outer box structure of the composite cylinder type single-channel underground gas pressure regulating box according to claim 1, wherein the cross section of the main cylinder is circular; the cross section of the auxiliary cylinder body is circular;

the diameter of the main cylinder is larger than that of the auxiliary cylinder;

the second air outlet hole and the first air outlet hole are both round holes;

a gap is formed at the second air outlet;

the bearing plate is circular, and the first air outlet is formed in the center of the bearing plate.

5. The outer box structure of the composite cylinder type single-channel underground gas pressure regulating box according to claim 1, further comprising an inlet joint and an outlet joint;

6. The outer box structure of the composite cylinder type single-channel underground gas pressure regulating box according to claim 1, further comprising a positioning ring; the positioning ring is of a hollow structure and is communicated with the first air outlet;

one end of the positioning ring is fixedly connected to the supporting plate;

7. The outer box structure of the composite cylinder type single-channel underground gas pressure regulating box according to claim 5, characterized by further comprising a rib plate; the rib plates are arranged at the connecting position of the inlet joint and the main cylinder body and the connecting position of the outlet joint and the auxiliary cylinder body.

8. The outer box structure of the composite cylinder type single-channel underground gas pressure regulating box according to claim 5, further comprising a pressure taking inner tube and a pressure taking outer tube; the upper top plate is provided with a pressure taking hole;

9. The outer box structure of the composite cylinder type single-way underground gas pressure regulating box according to claim 1, further comprising a diffusing connecting pipe and a noise reduction pipe;

the noise reduction pipe is fixedly connected with the lower bottom plate, and the connecting position of the noise reduction pipe is positioned right below the first air outlet on the supporting plate.

10. The outer box structure of the composite cylinder type single-channel underground gas pressure regulating box according to any one of claims 1 to 9, wherein the upper top plate is provided with an integrated pressure regulating core fixing hole, an integrated pressure regulating core mounting hole and an instrument box mounting hole;