CN215981011U

CN215981011U - Building pressure regulator balance valve

Info

Publication number: CN215981011U
Application number: CN202122160538.7U
Authority: CN
Inventors: 丁建生; 姚仙冬; 刘洪泉; 王义钊; 李永吉; 户春环; 王浩
Original assignee: Hebei Yongliang Combustion Gas Equipment Co ltd
Current assignee: Hebei Yongliang Combustion Gas Equipment Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-03-08
Anticipated expiration: 2031-09-07

Abstract

The utility model provides a building pressure regulator balance valve which comprises a valve sleeve, wherein a gland is arranged at the upper end of the valve sleeve, a valve rod is arranged at the upper end of the gland, a pressing plate is arranged at the lower end of the gland, a balance plug is arranged at the lower end of the valve rod, a balance diaphragm is arranged at the side end of the balance plug, a first O-shaped ring is arranged between the balance plug and the gland, a valve clack pad is arranged at the lower end of the balance plug, a first valve clack is arranged at the side end of the valve clack pad, a second O-shaped ring is arranged between the first valve clack and the balance plug, and a signal pipe is arranged at the lower end of the valve sleeve. According to the building pressure regulator balance valve, the inlet pressure is introduced into the upper cavity of the balance diaphragm through the air passing screw, so that the purpose of pressure balance is achieved, the defect of poor pressure stabilizing precision of the original building pressure regulator is overcome, and meanwhile, the area of a valve port can be properly increased, so that the flow of the pressure regulator is improved.

Description

Building pressure regulator balance valve

Technical Field

The utility model relates to the technical field of gas pressure regulation, in particular to a building pressure regulator balance valve.

Background

The building pressure regulator is used as a common device in a gas transmission and distribution system, is generally applied to pressure regulation and gas supply of resident living gas or small-sized industrial users, has the characteristics of small volume, light weight and the like, such as a balance valve (application number: CN202020317080.4) disclosed by Chinese patent documents, and has the defects of the existing building pressure regulator product: the steady voltage precision is poor, when city pipe network pressure fluctuation is great, can cause the change of voltage regulator outlet pressure, simultaneously because the unbalanced force influence that the inlet pressure change produced for the voltage regulator must use less valve port, can't satisfy the great operating mode occasion of flow, for this reason, we provide a building voltage regulator balanced valve.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a building pressure regulator balance valve which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a building voltage regulator balanced valve, includes the valve barrel, the upper end of valve barrel is provided with the gland, the upper end of gland is provided with the valve rod, the lower extreme of gland is provided with the clamp plate, the lower extreme of valve rod is provided with balanced stopper, the side of balanced stopper is provided with balanced diaphragm, be provided with first O type circle between balanced stopper and the gland, the lower extreme of balanced stopper is provided with the valve clack pad, the side of valve clack pad is provided with first valve clack, be provided with second O type circle between first valve clack and the balanced stopper, the lower extreme of valve barrel is provided with the signal pipe, the lower extreme of balanced valve is provided with the air screw.

Preferably, a first internal thread and a vent groove are arranged in the valve sleeve, a signal feedback hole is formed in the side end of the valve sleeve, the first internal thread is fixedly connected with the valve sleeve, the vent groove is embedded in the inner outer surface of the valve sleeve, and the signal feedback hole is fixedly connected with the signal pipe.

By adopting the technical scheme, the following technical effects can be achieved: the signal feedback hole and the signal tube have the function of conducting signals.

Preferably, the side of gland is provided with first external screw thread, be fixed connection between first external screw thread and the gland, the center of gland is provided with first centre bore and seal groove, first centre bore runs through in the upper end surface of gland, be fixed connection between seal groove and the gland, the side of gland is provided with the air vent, the air vent runs through in the upper end surface of gland.

By adopting the technical scheme, the following technical effects can be achieved: by sealing the groove, the internal sealing is enhanced.

Preferably, be swing joint between valve rod and the balanced stopper, be fixed connection between clamp plate and the balanced stopper, be swing joint between first O type circle and the gland, be fixed connection between balanced diaphragm and the valve barrel, valve clack pad is threaded connection through the air screw with first valve clack.

By adopting the technical scheme, the following technical effects can be achieved: the inlet pressure is introduced into the upper cavity of the balance diaphragm through the air passing screw, so that the balance diaphragm generates downward acting force to offset unbalanced force generated by inlet pressure change, stable outlet pressure is always kept, and the pressure stabilizing precision of the pressure regulator is improved.

Preferably, the lower extreme of balanced stopper is provided with second internal thread and second centre bore, be fixed connection between second internal thread and the balanced stopper, the second centre bore inlays in the inside of balanced stopper, the side of second centre bore is provided with the side opening, the side opening runs through in the side surface of balanced stopper.

By adopting the technical scheme, the following technical effects can be achieved: through the second internal thread, make its installation and dismantlement of being convenient for, reinforcing connectivity.

Preferably, the upper end of the balance plug is provided with a second external thread, the second external thread is fixedly connected with the balance plug, and the second O-shaped ring is movably connected with the balance plug.

By adopting the technical scheme, the following technical effects can be achieved: through the second external thread connection valve rod, strengthen the connectivity, make its installation and dismantlement be convenient for.

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

1. the inlet pressure is introduced into the upper cavity of the balance diaphragm through the air passing screw, so that the balance diaphragm generates downward acting force to offset unbalanced force generated by inlet pressure change, stable outlet pressure is always kept, and the pressure stabilizing precision of the pressure regulator is improved.

2. Because the balanced valve offsets the influence of inlet pressure, the pressure regulator valve port is increased to some extent than the original product, and this has improved the circulation ability of pressure regulator greatly.

3. The feedback signal passes through the signal tube, the signal feedback hole, the vent groove and the vent hole and then enters the diaphragm cavity, a certain damping effect can be achieved, and the operation stability of the pressure regulator is improved.

Drawings

FIG. 1 is a cross-sectional view of a balance valve of a building pressure regulator according to the present invention;

FIG. 2 is a cross-sectional view of a balancing plug of a building pressure regulator balancing valve according to the present invention;

FIG. 3 is a cross-sectional view of a valve housing of a building pressure regulator balanced valve according to the present invention;

fig. 4 is a cross-sectional view of a gland of a building pressure regulator balance valve of the utility model.

In the figure: 1. a valve housing; 101. a first internal thread; 102. a vent channel; 103. a signal feedback aperture; 2. a gland; 201. a first external thread; 202. a first central aperture; 203. a sealing groove; 204. a vent hole; 3. a valve stem; 4. pressing a plate; 5. a first O-ring; 6. balancing the membrane; 7. a balance plug; 701. a second internal thread; 702. a second central aperture; 703. a side hole; 704. a second external thread; 8. a valve flap pad; 9. a first valve flap; 10. a gas passing screw; 11. a second O-ring; 12. and a signal tube.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

The first embodiment is as follows:

as shown in fig. 1, 3 and 4, a building pressure regulator balance valve comprises a valve sleeve 1, a gland 2 is arranged at the upper end of the valve sleeve 1, a valve rod 3 is arranged at the upper end of the gland 2, a pressure plate 4 is arranged at the lower end of the gland 2, a balance plug 7 is arranged at the lower end of the valve rod 3, a balance diaphragm 6 is arranged at the side end of the balance plug 7, a first O-ring 5 is arranged between the balance plug 7 and the gland 2, a valve flap pad 8 is arranged at the lower end of the balance plug 7, a first valve flap 9 is arranged at the side end of the valve flap pad 8, a second O-ring 11 is arranged between the first valve flap 9 and the balance plug 7, a signal pipe 12 is arranged at the lower end of the valve sleeve 1, a gas passing screw 10 is arranged at the lower end of the balance valve 7, a first internal thread 101 and a vent groove 102 are arranged inside the valve sleeve 1, a signal feedback hole 103 is arranged at the side end of the valve sleeve 1, the first internal thread 101 is fixedly connected with the valve sleeve 1, and the vent groove 102 is embedded in the inner surface of the valve sleeve 1, the signal feedback hole 103 is fixedly connected with the signal tube 12, the signal feedback hole 103 and the signal tube 12 have a signal conducting effect, a first external thread 201 is arranged at the side end of the gland 2, the first external thread 201 is fixedly connected with the gland 2, a first central hole 202 and a sealing groove 203 are arranged at the center of the gland 2, the first central hole 202 penetrates through the outer surface of the upper end of the gland 2, the sealing groove 203 is fixedly connected with the gland 2, a vent hole 204 is arranged at the side end of the gland 2, the vent hole 204 penetrates through the outer surface of the upper end of the gland 2, and the sealing performance inside the signal feedback hole 103 and the signal tube 12 is enhanced by arranging the sealing groove 203.

Example two:

on the basis of the first embodiment, as shown in fig. 2, the valve rod 3 is movably connected with the balance plug 7, the pressing plate 4 is fixedly connected with the balance plug 7, the first O-ring 5 is movably connected with the pressing cover 2, the balance diaphragm 6 is fixedly connected with the valve sleeve 1, the valve flap pad 8 is in threaded connection with the first valve flap 9 through the air passing screw 10, the inlet pressure is introduced into the upper cavity of the balance diaphragm 6 through the air passing screw 10, so that the balance diaphragm 6 generates a downward acting force to counteract an unbalanced force generated by the change of the inlet pressure, a stable outlet pressure is always maintained, the pressure stabilizing precision of the pressure regulator is improved, the lower end of the balance plug 7 is provided with a second internal thread 701 and a second central hole 702, the second internal thread 701 is fixedly connected with the balance plug 7, the second central hole 702 is embedded in the balance plug 7, the side end of the second central hole 702 is provided with a side hole 703, the side hole 703 penetrates the outer surface of the side end of the balance plug 7, the second internal thread 701 makes the balance plug convenient to mount and dismount, the connectivity is enhanced, the upper end of the balance plug 7 is provided with a second external thread 704, the second external thread 704 is fixedly connected with the balance plug 7, the second O-shaped ring 11 is movably connected with the balance plug 7, the valve rod 3 is connected through the second external thread 704, the connectivity is enhanced, the balance plug is convenient to mount and dismount, the inlet pressure generates upward imbalance through the valve clack pad 8, meanwhile, the inlet pressure can enter the upper cavity of the balance diaphragm 6 through the side hole 703 of the vent screw and the balance plug 7, the balance diaphragm 6 generates downward acting force, the effective areas of the balance diaphragm 6 and the valve port are equal, so that the unbalanced force generated by the inlet pressure is completely offset, the pressure stabilizing precision of the pressure regulator is improved, because the influence of the inlet pressure is offset by the balance valve, compared with the existing product, the feedback signal of the utility model enters the diaphragm cavity of the pressure regulator after passing through the signal pipe 12, the signal feedback hole 103, the vent groove 102 and the vent hole 204, thereby playing a certain damping role and improving the operation stability of the pressure regulator.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a building pressure regulator balanced valve, includes valve barrel (1), its characterized in that: the upper end of valve barrel (1) is provided with gland (2), the upper end of gland (2) is provided with valve rod (3), the lower extreme of gland (2) is provided with clamp plate (4), the lower extreme of valve rod (3) is provided with balanced stopper (7), the side of balanced stopper (7) is provided with balanced diaphragm (6), be provided with first O type circle (5) between balanced stopper (7) and gland (2), the lower extreme of balanced stopper (7) is provided with valve clack pad (8), the side of valve clack pad (8) is provided with first valve clack (9), be provided with second O type circle (11) between first valve clack (9) and balanced stopper (7), the lower extreme of valve barrel (1) is provided with signal pipe (12), the lower extreme of balanced valve (7) is provided with air screw (10).

2. The building pressure regulator balanced valve of claim 1, characterized in that: the valve sleeve is characterized in that a first internal thread (101) and a vent groove (102) are arranged inside the valve sleeve (1), a signal feedback hole (103) is formed in the side end of the valve sleeve (1), the first internal thread (101) is fixedly connected with the valve sleeve (1), the vent groove (102) is embedded in the inner outer surface of the valve sleeve (1), and the signal feedback hole (103) is fixedly connected with the signal pipe (12).

3. The building pressure regulator balanced valve of claim 1, characterized in that: the side of gland (2) is provided with first external screw thread (201), be fixed connection between first external screw thread (201) and gland (2), the center of gland (2) is provided with first centre bore (202) and seal groove (203), first centre bore (202) run through in the upper end surface of gland (2), be fixed connection between seal groove (203) and gland (2), the side of gland (2) is provided with air vent (204), air vent (204) run through in the upper end surface of gland (2).

4. The building pressure regulator balanced valve of claim 1, characterized in that: be swing joint between valve rod (3) and balanced stopper (7), be fixed connection between clamp plate (4) and the balanced stopper (7), be swing joint between first O type circle (5) and gland (2), be fixed connection between balanced diaphragm (6) and valve barrel (1), be threaded connection through air screw (10) between valve clack pad (8) and first valve clack (9).

5. The building pressure regulator balanced valve of claim 1, characterized in that: the lower extreme of balanced stopper (7) is provided with second internal thread (701) and second centre bore (702), be fixed connection between second internal thread (701) and balanced stopper (7), second centre bore (702) inlay in the inside of balanced stopper (7), the side of second centre bore (702) is provided with side opening (703), side opening (703) run through in the side surface of balanced stopper (7).

6. The building pressure regulator balanced valve of claim 5, wherein: the upper end of the balance plug (7) is provided with a second external thread (704), the second external thread (704) is fixedly connected with the balance plug (7), and the second O-shaped ring (11) is movably connected with the balance plug (7).