CN221146229U

CN221146229U - Spherical connection bypass building pressure regulating box

Info

Publication number: CN221146229U
Application number: CN202323225017.0U
Authority: CN
Inventors: 张伟; 郑文学; 陈燚
Original assignee: Chengdu Chuanli Smart Fluid Equipment Co ltd
Current assignee: Chengdu Chuanli Smart Fluid Equipment Co ltd
Priority date: 2023-11-29
Filing date: 2023-11-29
Publication date: 2024-06-14
Anticipated expiration: 2033-11-29

Abstract

The utility model discloses a spherical connection bypass building pressure regulating box which comprises a main pressure regulator and a bypass assembly, wherein the main pressure regulator comprises a main pressure regulating main body, a main pressure regulating valve body, a main inlet ball valve, a main outlet ball valve and a safety cutting device, the bypass assembly comprises a bypass pressure regulating main body, a bypass pressure regulating valve body, a bypass inlet ball valve and a bypass outlet ball valve, one end of the bypass inlet ball valve is communicated with the bypass pressure regulating valve body through a first spherical connecting piece, one end of the bypass outlet ball valve is communicated with the bypass pressure regulating valve body through a second spherical connecting piece, the first spherical connecting piece and the second spherical connecting piece can rotate at a certain angle, and the problems that a bypass path cannot be connected with a main path connecting hole due to accumulated errors of machining length and the perpendicularity deviation of an end face and a shaft are solved, the end face cannot be effectively sealed, and air leakage occurs and part of bypass can be twisted off due to forced installation are solved.

Description

Spherical connection bypass building pressure regulating box

Technical Field

The utility model relates to the technical field of gas equipment, in particular to a spherical connection bypass building pressure regulating box.

Background

The pressure regulating box with the bypass building is specially suitable for being used as pressure regulating and stabilizing gas pressure regulating equipment in a gas transmission and distribution system, and is widely applied to gas transmission and distribution engineering; the gas outlet pressure regulator has the function of automatically regulating the gas outlet pressure to ensure that the gas outlet pressure is stabilized in a certain pressure range so as to meet the pressure value required by a user; when the main pressure regulator in the pressure regulating box with the bypass building fails and needs maintenance or overhaul, the main ball valve of the inlet and the outlet is closed, the bypass ball valve is opened, and the bypass passage is used for supplying air, so that the normal downstream air consumption is ensured.

However, the bypass passage in the existing pressure regulating box with the bypass building is usually connected by a plurality of connectors, and the problems of accumulated errors of machining length and size and deviation of perpendicularity of the end face and the axial lead exist in the connectors, so that in actual use, the bypass passage cannot be connected with a main passage connecting hole, the end face cannot be effectively sealed, the problem of air leakage occurs, and even part of the bypass pressure regulating device can be twisted off due to forced installation.

The application number is: 201721099131.5, publication number CN207112372U discloses a take bypass building surge tank, including main road gas passageway, auxiliary road gas passageway, main road pressure regulating device, auxiliary road pressure regulating device, main road import ball valve, auxiliary road import ball valve, main road export ball valve, auxiliary road export ball valve and main road cutting device, it has the bypass to be unable to be connected with main road connecting hole, the terminal surface can not effectively seal, the problem of gas leakage appears, even partial bypass voltage regulator can cause the problem of twisting off because of forced installation.

Disclosure of utility model

Based on the problems, the utility model provides the spherical connection bypass building pressure regulating box, which solves the problems that when the traditional bypass building pressure regulating box is in actual use, a bypass channel cannot be connected with a main channel connecting hole due to accumulated errors of machining length dimensions and deviation of perpendicularity of an end face and a shaft axis of a connector, the end face cannot be effectively sealed, air leakage occurs, and a part of bypass pressure regulating box is twisted off due to forced installation.

The technical scheme of the utility model is as follows:

The utility model provides a spherical connection bypass building pressure regulating box, includes main pressure regulator and bypass subassembly, main pressure regulator includes main pressure regulating main part, main pressure regulating valve body, main import ball valve, main export ball valve and safety cut-off device, be equipped with the gas passageway in the main pressure regulating valve body, main pressure regulating main part sets up on main pressure regulating valve body for adjust the gas passageway internal pressure, safety cut-off device sets up on main pressure regulating valve body for promptly cutting off the gas passageway, main import ball valve, main pressure regulating valve body and main export ball valve communicate in proper order and set up, be located main import ball valve one side in the main pressure regulating valve body and be equipped with filter assembly;

The bypass assembly comprises a bypass pressure regulating main body, a bypass pressure regulating valve body, a bypass inlet ball valve and a bypass outlet ball valve, wherein a fuel gas flow channel is arranged in the bypass pressure regulating valve body, the bypass pressure regulating main body is arranged on the bypass pressure regulating valve body and used for regulating the pressure in the fuel gas flow channel, and the bypass inlet ball valve, the bypass pressure regulating valve body and the bypass outlet ball valve are sequentially arranged;

One end of the bypass inlet ball valve is communicated with the bypass pressure regulating valve body through a first spherical connecting piece, the other end of the bypass inlet ball valve is connected with the main inlet ball valve flange, one end of the bypass outlet ball valve is communicated with the bypass pressure regulating valve body through a second spherical connecting piece, the other end of the bypass outlet ball valve is connected with the main outlet ball valve flange, and the first spherical connecting piece and the second spherical connecting piece can rotate at a certain angle.

Preferably, the first spherical connecting piece includes first ball joint, first coupling nut and first conversion joint, first ball joint one end is the shaft-like structure that is equipped with the external screw thread, and the other end is the spherical structure, be equipped with first boss on the spherical structure, first ball joint external screw thread one end and bypass import ball valve one end threaded connection, first coupling nut cover is established in the outside of first ball joint ball structure one end, and with first ball joint clearance fit, first coupling nut can rotate around first ball joint ball structure one end, be equipped with the first recess that sets up with first boss cooperation in the first coupling nut, first conversion joint one end is equipped with the first ball mounting notch that sets up with first ball joint ball structure one end cooperation, first ball sealing pad installs in first ball mounting notch, first ball joint one end can insert in the first ball mounting notch, first conversion joint one end and first coupling nut threaded connection, the other end and bypass valve one end threaded connection, just first conversion joint and bypass body one end threaded connection, first conversion joint and bypass body are equipped with first pressure regulating valve threaded connection department.

Preferably, the second spherical connecting piece includes second spherical connector, second coupling nut and second adapter, second spherical connector one end is the shaft-like structure that is equipped with the external screw thread, and the other end is spherical structure, be equipped with the second boss on the spherical structure, second spherical connector external screw thread one end and bypass import ball valve one end threaded connection, second coupling nut cover is established in the outside of second spherical connector spherical structure one end, and with second spherical connector clearance fit, second coupling nut can rotate around second spherical connector spherical structure one end, be equipped with the second recess that sets up with second boss cooperation in the second coupling nut, second adapter one end is equipped with the second spherical installation notch that sets up with second spherical connector spherical structure one end cooperation, the second spherical sealing pad is installed in the second spherical installation notch, second spherical connector one end can insert in the second spherical installation notch, second adapter one end and second coupling nut threaded connection, the other end and bypass air-vent valve body one end threaded connection, just second adapter and bypass body cooperation are equipped with the second sealing pad.

Preferably, the main inlet ball valve is provided with a first outlet pipe, the first outlet pipe is communicated with the inner cavity of the main inlet ball valve, and the first outlet pipe is connected with one end of the bypass inlet ball valve through a flange.

Preferably, the main outlet ball valve is provided with a second outlet pipe, the second outlet pipe is communicated with the inner cavity of the main outlet ball valve, and the second outlet pipe is connected with one end of the bypass outlet ball valve through a flange.

Preferably, the bypass pressure regulating main body is provided with a pressure gauge, and the bypass outlet ball valve is provided with an emergency release valve.

Preferably, the filter component comprises a filter element and a cover body, the main pressure regulating valve body is provided with an installation opening, the cover body is arranged at the installation opening and is connected with the main pressure regulating valve body through a bolt, an installation cavity for installing the filter element is arranged in the main pressure regulating valve body, the filter element can be installed in the installation cavity, and one end of the filter element is connected with the cover body.

Preferably, the filter element bottom is provided with a sealing member, the installation cavity is internally provided with a sealing member matched with the filter element bottom and arranged at the receiving position, and when the filter element is installed in the installation cavity, the sealing member at the filter element bottom is contacted with the receiving position.

Compared with the prior art, the utility model has the beneficial effects that:

During installation, one end of the bypass inlet ball valve is connected with the bypass pressure regulating valve body through a first spherical connecting piece, the other end of the bypass inlet ball valve is connected with the main inlet ball valve flange, one end of the bypass outlet ball valve is communicated with the bypass pressure regulating valve body through a second spherical connecting piece, the other end of the bypass outlet ball valve is connected with the main outlet ball valve flange, and the bypass pressure regulating valve body, the bypass inlet ball valve and the bypass outlet ball valve are installed in an adaptive deviation angle mode through the cooperation of the first spherical connecting piece and the second spherical connecting piece.

The problem that the side passage cannot be connected with the main passage connecting hole due to accumulated errors of machining length and size and deviation of perpendicularity of the end face and the axial lead of the connector when the traditional pressure regulating box with the bypass building is in actual use, the end face cannot be effectively sealed, air leakage occurs, and the problem that part of the bypass pressure regulating box is twisted off due to forced installation is solved.

Drawings

FIG. 1 is a schematic diagram of a spherical connection bypass building pressure regulating box according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a partial cross-sectional configuration of a bypass assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a partial cross-sectional structure of a first ball joint according to an embodiment of the utility model;

FIG. 4 is a schematic view of a partial cross-sectional structure of a second ball joint according to an embodiment of the utility model;

FIG. 5 is a schematic view of a partial cross-sectional structure of a main regulator valve body according to an embodiment of the present utility model;

Reference numerals illustrate:

10-main regulator body, 11-main regulator valve body, 12-main inlet ball valve, 13-main outlet ball valve, 14-safety shut-off device, 100-filter assembly, 101-first outlet tube, 102-second outlet tube, 103-filter cartridge, 104-cover, 105-seal, 106-socket, 20-bypass regulator body, 21-bypass regulator valve body, 22-bypass inlet ball valve, 23-bypass outlet ball valve, 24-first spherical connector, 25-second spherical connector, 200-first spherical connector, 201-first connector nut, 202-first adapter, 203-first boss, 204-first groove, 205-first spherical mounting notch, 206-first spherical gasket, 207-first gasket, 208-second spherical connector, 209-second connector nut, 210-second adapter, 211-second boss, 212-second groove, 213-second spherical mounting notch, 214-second spherical gasket, 215-second gasket, 216-emergency pressure gauge, 217-emergency relief valve.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Examples:

As shown in fig. 1 to 5, in order to solve the above-mentioned problems, the present embodiment discloses a spherical connection bypass building pressure regulating box, which comprises a main pressure regulator and a bypass assembly, wherein the main pressure regulator comprises a main pressure regulating main body 10, a main pressure regulating valve body 11, a main inlet ball valve 12, a main outlet ball valve 13 and a safety cut-off device 14, a gas channel is arranged in the main pressure regulating valve body 11, the main pressure regulating main body 10 is arranged on the main pressure regulating valve body 11 and is used for regulating the pressure in the gas channel, the safety cut-off device 14 is arranged on the main pressure regulating valve body 11 and is used for emergently cutting off the gas channel, the main inlet ball valve 12, the main pressure regulating valve body 11 and the main outlet ball valve 13 are sequentially communicated, and a filter assembly 100 is arranged on one side of the main inlet ball valve 12 in the main pressure regulating valve body 11;

The bypass assembly comprises a bypass pressure regulating main body 20, a bypass pressure regulating valve body 21, a bypass inlet ball valve 22 and a bypass outlet ball valve 23, wherein a fuel gas flow passage is arranged in the bypass pressure regulating valve body 21, the bypass pressure regulating main body 20 is arranged on the bypass pressure regulating valve body 21 and is used for regulating the pressure in the fuel gas flow passage, and the bypass inlet ball valve 22, the bypass pressure regulating valve body 21 and the bypass outlet ball valve 23 are sequentially arranged;

One end of the bypass inlet ball valve 22 is communicated with the bypass pressure regulating valve body 21 through a first spherical connecting piece 24, the other end of the bypass inlet ball valve is in flange connection with the main inlet ball valve 12, one end of the bypass outlet ball valve 23 is communicated with the bypass pressure regulating valve body 21 through a second spherical connecting piece 25, and the other end of the bypass outlet ball valve is in flange connection with the main outlet ball valve 13.

The first ball-shaped connection 24 and the second ball-shaped connection 25 are rotatable around an angle in the axial direction.

During installation, one end of the bypass inlet ball valve 22 is connected with the bypass pressure regulating valve body 21 through the first spherical connecting piece 24, the other end of the bypass inlet ball valve 22 is in flange connection with the main inlet ball valve 12, one end of the bypass outlet ball valve 23 is communicated with the bypass pressure regulating valve body 21 through the second spherical connecting piece 25, the other end of the bypass outlet ball valve 23 is in flange connection with the main outlet ball valve 13, and the bypass pressure regulating valve body 21, the bypass inlet ball valve 22 and the bypass outlet ball valve 23 are installed in an adaptive deviation angle mode through the cooperation of the first spherical connecting piece 24 and the second spherical connecting piece 25.

The deviation angle is formed by the accumulated errors of the machining length and the dimension of the connector and the deviation of the perpendicularity of the end face and the axis, and the angle range is small and is 1-10 degrees.

As shown in fig. 2 to 3, in order to better realize that the first spherical connecting member 24 can rotate around the axial direction at a certain angle, this embodiment is modified based on the above embodiment, and is different from the above embodiment in that the first spherical connecting member 24 includes a first spherical connecting head 200, a first connecting nut 201 and a first conversion joint 202, one end of the first spherical connecting head 200 is in a rod-shaped structure with an external thread, the other end is in a hemispherical structure, a first boss 203 is provided on the hemispherical structure, one end of the external thread of the first spherical connecting head 200 is in threaded connection with one end of the bypass inlet ball valve 22, the first connecting nut 201 is sleeved outside one end of the hemispherical structure of the first spherical connecting head 200 and in clearance fit with the first spherical connecting head 200, the first connecting nut 201 can rotate around one end of the hemispherical structure of the first spherical connecting head 200, a first groove 204 is provided in the first connecting nut 201 and is arranged in a matched manner with the first boss 203, one end of the first conversion joint 200 is provided with a first spherical mounting notch 205 which is arranged in a matched manner with one end of the hemispherical structure of the first spherical connecting head 200, the first spherical mounting notch 205 is arranged in the first conversion joint 206 and is in contact with the other end of the first spherical connecting head 202, the first spherical connecting head 201 can be inserted into the first threaded joint 202, and the first spherical joint is in contact with the other end of the first spherical connecting head 21, and the first spherical joint is in contact with the first spherical joint 202 is in a threaded connection joint 202.

During installation, the bypass inlet ball valve 22 is installed on the main inlet ball valve 12, then the first connecting nut 201 is sleeved by one end of the rod-shaped structure, provided with the external threads, of the first spherical connector 200, then one end of the rod-shaped structure, provided with the external threads, of the first spherical connector 200 is connected with the bypass inlet ball valve 22, one end of the first conversion connector 202 is connected with one end of the bypass pressure regulating valve body 21, one end of the hemispherical structure of the first spherical connector 200 is inserted into the first spherical installation notch 205, and then the first conversion connector 202 is screwed in through the first connecting nut 201 to complete fixation.

The depth of the first connecting nut 201 in screwing can be controlled according to the actual length of the bypass, so that the problem of connection failure is effectively solved; the hemispherical structure on the first ball joint 200 is in contact with the first ball gasket 206, and the hemispherical structure can rotate in a three-dimensional space at all angles without affecting the sealing performance, so that the problem that the end surface of the bypass channel is not perpendicular to the axis is effectively solved.

As shown in fig. 2 and 4, preferably, the second spherical connecting member 25 includes a second spherical joint 208, a second connecting nut 209 and a second adapter 210, one end of the second spherical joint 208 is a rod-shaped structure with external threads, the other end is a hemispherical structure, a second boss 211 is disposed on the hemispherical structure, one end of the external threads of the second spherical joint 208 is in threaded connection with one end of the bypass inlet ball valve 22, the second connecting nut 209 is sleeved outside one end of the hemispherical structure of the second spherical joint 208 and is in clearance fit with the second spherical joint 208, the second connecting nut 209 can rotate around one end of the hemispherical structure of the second spherical joint 208, a second groove 212 matched with the second boss 211 is disposed in the second connecting nut 209, one end of the second adapter 210 is provided with a second spherical mounting notch 213 matched with one end of the hemispherical structure of the second spherical joint 208, one end of the second spherical joint 208 can be inserted into the second spherical mounting notch 213, the second adapter 210 is connected with the second adapter 21 by threaded connection with the other end of the bypass ball valve 21, and the other end of the bypass ball valve 21 is connected with the threaded joint 215 by threaded connection.

During installation, the bypass outlet ball valve 23 is installed on the main outlet ball valve 13, then the second connecting nut 209 is sleeved by one end of the rod-shaped structure, provided with the external threads, of the second spherical connector 208, then one end of the rod-shaped structure, provided with the external threads, of the second spherical connector 208 is connected with the bypass outlet ball valve 23, one end of the second adapter 210 is connected with one end of the bypass pressure regulating valve body 21, one end of the hemispherical structure of the second spherical connector 208 is inserted into the second spherical installation notch 213, and then the hemispherical structure of the second spherical connector 208 is screwed into the second adapter 210 through the second connecting nut 209 to complete fixation.

The depth of the second connecting nut 209 in screwing can be controlled according to the actual length of the bypass, so that the problem of connection failure is effectively solved; the hemispherical structure on the second ball joint 208 contacts with the second ball gasket 214, and the hemispherical structure can rotate in three-dimensional space at all angles without affecting the sealing performance, so that the problem that the end surface of the bypass channel is not perpendicular to the axis is effectively solved.

Preferably, the first spherical connecting member 24 and the second spherical connecting member 25 are each provided with a gas flow passage for passing the fuel gas.

Preferably, gas flow passages for the gas to pass through are formed in the first ball joint 200, the second ball joint 208, the first conversion joint 202 and the second conversion joint 210.

As shown in fig. 1, in order to facilitate the communication between the bypass inlet ball valve 22 and the main inlet ball valve 12, this embodiment is modified based on the above embodiment, and is different from the above embodiment in that a first outlet pipe 101 is disposed on the main inlet ball valve 12, where the first outlet pipe 101 is communicated with an internal cavity of the main inlet ball valve 12, and one end of the first outlet pipe 101 is connected with one end of the bypass inlet ball valve 22 through a flange.

Preferably, the main outlet ball valve 13 is provided with a second outlet pipe 102, the second outlet pipe 102 is communicated with the internal cavity of the main outlet ball valve 13, and the second outlet pipe 102 is connected with one end of the bypass outlet ball valve 23 through a flange.

When in use, the flange connection can realize quick installation or quick disassembly, is convenient to use, and has good sealing property.

In order to facilitate observing the pressure in the bypass pressure regulating body 20, this embodiment is modified based on the above embodiment, and is different from the above embodiment in that the bypass pressure regulating body 20 is provided with a pressure gauge 216, and the bypass outlet ball valve 23 is provided with an emergency release valve 217.

In use, the pressure in the bypass pressure regulating body 20 can be observed by the pressure gauge 216, and the gas in the bypass pressure regulating body 20 can be released by the emergency relief valve 217 in an emergency.

As shown in fig. 5, in order to facilitate the installation and the disassembly of the filter element 103, this embodiment is modified on the basis of the above embodiment, and is different from the above embodiment in that the filter assembly 100 includes the filter element 103 and the cover 104, the main pressure regulating valve body 11 is provided with an installation opening, the cover 104 is disposed at the installation opening and is connected with the main pressure regulating valve body 11 through a bolt, an installation cavity for installing the filter element 103 is disposed in the main pressure regulating valve body 11, the filter element 103 can be installed in the installation cavity, and one end of the filter element 103 is connected with the cover 104.

Preferably, the bottom of the filter element 103 is provided with a sealing member 105, the installation cavity is internally provided with a receiving part 106 matched with the bottom of the filter element 103, and when the filter element 103 is installed in the installation cavity, the sealing member 105 at the bottom of the filter element 103 is in contact with the receiving part 106.

When the gas filter is used, the cover 104 can be detached from the mounting port through the detaching bolts, the filter element 103 is lifted for maintenance and replacement, and the sealing piece 105 at the bottom of the filter element 103 plays a role in sealing, so that gas cannot flow through a gap between the bottom of the filter element 103 and the receiving part 106.

The working principle of the utility model is as follows:

When in use, gas enters from the main inlet ball valve 12, passes through the main pressure regulating valve body 11 and finally flows out from the main outlet ball valve 13, and the main inlet ball valve 12 is matched with the bypass inlet ball valve 22 to realize the protection effects of opening and closing the gas inlet and cutting off the gas source; the main pressure regulating body 10 and the bypass pressure regulating body 20 cooperate to realize the function of regulating pressure; the safety cut-off device 14 realizes the emergency cut-off of fuel gas in emergency, and has the function of safety protection; the main outlet ball valve 13 is matched with the bypass outlet ball valve 23, so that the air supply at the rear end is cut off.

During maintenance, fuel gas enters the bypass inlet ball valve 22 from the main inlet ball valve 12, enters the bypass pressure regulating valve body 21 through the first spherical connecting piece 24, enters the bypass outlet ball valve 23 through the second spherical connecting piece 25, and finally flows out from the main outlet ball valve 13.

The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims

1. The utility model provides a spherical connection bypass building pressure regulating box which characterized in that, includes main pressure regulator and bypass subassembly, main pressure regulator includes main pressure regulating main part (10), main pressure regulating valve body (11), main import ball valve (12), main export ball valve (13) and safety cut-off device (14), be equipped with the gas passageway in main pressure regulating valve body (11), main pressure regulating main part (10) set up on main pressure regulating valve body (11) for adjust gas passageway internal pressure, safety cut-off device (14) set up on main pressure regulating valve body (11) for promptly cut off the gas passageway, main import ball valve (12), main pressure regulating valve body (11) and main export ball valve (13) communicate in proper order and set up, be located main import ball valve (12) one side in main pressure regulating valve body (11) and be equipped with filter assembly (100);

The bypass assembly comprises a bypass pressure regulating main body (20), a bypass pressure regulating valve body (21), a bypass inlet ball valve (22) and a bypass outlet ball valve (23), wherein a fuel gas flow passage is arranged in the bypass pressure regulating valve body (21), the bypass pressure regulating main body (20) is arranged on the bypass pressure regulating valve body (21) and used for regulating the pressure in the fuel gas flow passage, and the bypass inlet ball valve (22), the bypass pressure regulating valve body (21) and the bypass outlet ball valve (23) are sequentially arranged;

One end of the bypass inlet ball valve (22) is communicated with the bypass pressure regulating valve body (21) through a first spherical connecting piece (24), the other end of the bypass inlet ball valve is in flange connection with the main inlet ball valve (12), one end of the bypass outlet ball valve (23) is communicated with the bypass pressure regulating valve body (21) through a second spherical connecting piece (25), and the other end of the bypass outlet ball valve is in flange connection with the main outlet ball valve (13).

2. The pressure regulating box as claimed in claim 1, wherein the first spherical connecting member (24) comprises a first spherical connector (200), a first connecting nut (201) and a first conversion connector (202), one end of the first spherical connector (200) is of a rod-shaped structure with external threads, the other end of the first spherical connector is of a hemispherical structure, a first boss (203) is arranged on the hemispherical structure, one end of the external threads of the first spherical connector (200) is in threaded connection with one end of the bypass inlet ball valve (22), the first connecting nut (201) is sleeved outside one end of the hemispherical structure of the first spherical connector (200) and is in clearance fit with the first spherical connector (200), the first connecting nut (201) can rotate around one end of the hemispherical structure of the first spherical connector (200), a first groove (204) matched with the first boss (203) is arranged in the first connecting nut (201), a first spherical mounting notch (205) matched with one end of the hemispherical structure of the first spherical connector (200) is arranged at one end of the first conversion connector (202), a first spherical mounting pad (205) is arranged in the first spherical mounting notch (205) and can be inserted into the first spherical connector (200) at one end of the first spherical connector (201), the other end is in threaded connection with one end of the bypass pressure regulating valve body (21), and a first sealing gasket (207) is matched and arranged at the threaded connection part of the first conversion joint (202) and the bypass pressure regulating valve body (21).

3. The pressure regulating box as claimed in claim 2, wherein the second spherical connecting member (25) comprises a second spherical connector (208), a second connecting nut (209) and a second adapter (210), one end of the second spherical connector (208) is in a rod-shaped structure with external threads, the other end of the second spherical connector is in a hemispherical structure, a second boss (211) is arranged on the hemispherical structure, one end of the external threads of the second spherical connector (208) is in threaded connection with one end of the bypass inlet ball valve (22), the second connecting nut (209) is sleeved outside one end of the hemispherical structure of the second spherical connector (208) and is in clearance fit with the second spherical connector (208), the second connecting nut (209) can rotate around one end of the hemispherical structure of the second spherical connector (208), a second groove (212) which is matched with the second boss (211) is arranged in the second connecting nut (209), a second spherical mounting notch (213) which is matched with one end of the hemispherical structure of the second spherical connector (208) is arranged on one end of the second adapter (210), a second spherical mounting notch (213) is arranged in the second spherical connector (208), the second spherical connector (213) can be mounted in the second spherical connector (213), the other end is in threaded connection with one end of the bypass pressure regulating valve body (21), and a second sealing gasket (215) is matched and arranged at the threaded connection part of the second conversion joint (210) and the bypass pressure regulating valve body (21).

4. The spherical connection bypass building pressure regulating box according to claim 1, wherein a first outlet pipe (101) is arranged on the main inlet ball valve (12), the first outlet pipe (101) is communicated with an inner cavity of the main inlet ball valve (12), and the first outlet pipe (101) is connected with one end of the bypass inlet ball valve (22) through a flange.

5. The spherical connection bypass building pressure regulating box according to claim 4, wherein a second outlet pipe (102) is arranged on the main outlet ball valve (13), the second outlet pipe (102) is communicated with the inner cavity of the main outlet ball valve (13), and the second outlet pipe (102) is connected with one end of the bypass outlet ball valve (23) through a flange.

6. The spherical connection bypass building pressure regulating box according to claim 5, wherein a pressure gauge (216) is arranged on the bypass pressure regulating main body (20), and an emergency release valve (217) is arranged on the bypass outlet ball valve (23).

7. The spherical connection bypass building pressure regulating box according to claim 1, wherein the filter assembly (100) comprises a filter element (103) and a cover body (104), a mounting opening is formed in the main pressure regulating valve body (11), the cover body (104) is arranged at the mounting opening and is connected with the main pressure regulating valve body (11) through bolts, a mounting cavity for mounting the filter element (103) is formed in the main pressure regulating valve body (11), the filter element (103) can be mounted in the mounting cavity, and one end of the filter element (103) is connected with the cover body (104).

8. The spherical connection bypass building pressure regulating box according to claim 7, wherein a sealing member (105) is arranged at the bottom of the filter element (103), a receiving part (106) is arranged in the installation cavity in a matched manner with the bottom of the filter element (103), and when the filter element (103) is installed in the installation cavity, the sealing member (105) at the bottom of the filter element (103) is in contact with the receiving part (106).