CN216618586U

CN216618586U - Balanced double-pair single-seat regulating valve

Info

Publication number: CN216618586U
Application number: CN202122754853.2U
Authority: CN
Inventors: 崔云龙; 叶冬琴; 陈亚
Original assignee: Yancheng Haomiao Mechanical Equipment Co ltd
Current assignee: Yancheng Haomiao Mechanical Equipment Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-05-27
Anticipated expiration: 2031-11-11

Abstract

The utility model relates to a balanced double-pair single-seat regulating valve which comprises a valve body, a valve rod and a valve cover, wherein the valve rod is arranged in the valve body, the valve cover is arranged at the top of the valve body, a valve seat is arranged on the valve body, one end of the valve rod is provided with a valve core, the valve core is matched and connected with the valve seat, the other end of the valve rod penetrates through the valve cover to be connected with a driving mechanism, and a spring and composite packing are arranged between the valve rod and the valve cover. The valve clack and the sealing surface adopt different hard alloy technologies of surfacing, the abrasion resistance and the corrosion resistance of the valve separation and the sealing seat are ensured, and the service life of the whole valve is ensured.

Description

Balanced double-pair single-seat regulating valve

Technical Field

The utility model relates to the technical field of adjusting equipment, in particular to a balanced double-centering single-seat adjusting valve.

Background

The regulating valve is widely applied to industrial pipe networks of industrial departments such as petroleum, chemical industry, electric power, metallurgy, food, medicine, light textile, papermaking and the like, the purpose of intercepting flow can be realized through the regulating valve, and the regulating valve is widely applied to the steam pipe line control system in the fields of power stations, metallurgy, chemical industry, oil fields and the like. However, in the high-temperature high-steam pipeline, the flow of the water supply system cannot be accurately adjusted, and the utility model provides a new solution to the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a balanced double-pair single-seat regulating valve.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a balanced two to well single seat governing valve, includes valve body, valve rod and valve gap, and the valve rod is installed inside the valve body, and the valve gap is installed at the top of valve body, is provided with the disk seat on the valve body, valve rod one end is provided with the case, and this case is connected with the disk seat cooperation, and the other end of valve rod passes the valve gap and is connected with actuating mechanism, be provided with spring and compound packing between valve rod and the valve gap.

In a further preferred embodiment, the driving mechanism comprises a bracket, an indicator and a pneumatic device, the indicator and the pneumatic device are respectively connected with the bracket, the valve rod passes through the valve cover to be connected with the indicator, and the indicator is connected with the pneumatic device.

In a further preferred embodiment, the valve cover is connected to the valve body by a bolt and nut fit.

In a further preferred embodiment, a sealing gasket is arranged between the valve cover and the valve body.

In a further preferred embodiment, a bushing and an orientation sleeve are arranged between the valve rod and the valve body, the orientation sleeve being arranged inside the bushing.

In a further preferred mode, the support is provided with a packing gland, and the packing gland is installed in a matched mode with the composite packing.

(III) advantageous effects

Compared with the prior art, the utility model provides a balanced double-centering single-seat regulating valve which has the following beneficial effects:

the double-balanced centering structure is adopted in the step 1, the double-centered guiding of the stuffing box and the positioning guide sleeve guarantees accurate centering and guiding of the valve rod, the balance hole in the guide plate guarantees balance of pressure, and the switch is flexible.

2. The valve clack adopts an equal percentage structure, and the flow is accurately adjusted.

3. The design of the spring type double sealing packing box is adopted, and the sealing is reliable.

4. The valve clack and the sealing surface adopt different hard alloy technologies of surfacing welding, the abrasion resistance and the corrosion resistance of the brake valve and the sealing seat are ensured, and the service life of the whole valve is ensured.

Drawings

FIG. 1 is a schematic diagram of a preferred overall configuration of a balanced double-to-single seat regulator valve of the present invention.

In the figure: 1. a valve body; 2. a valve seat; 3. a valve core; 4. a bushing; 5. an orientation sleeve; 6. a gasket; 7. a bolt; 8. a nut; 9, a valve cover; 10. a spring; 11. composite filler; 12 a packing gland; 13. a support; 14. an indicator; 15. and a pneumatic device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1, the balanced double-pair single-seat regulating valve comprises a valve body 1, a valve rod 16 and a valve cover 9, wherein the valve rod 16 is installed inside the valve body 1, the valve cover 9 is installed at the top of the valve body 1, a valve seat 2 is arranged on the valve body 1, one end of the valve rod 16 is provided with a valve core 3, the valve core 3 is matched and connected with the valve seat 2, the other end of the valve rod 16 penetrates through the valve cover 9 to be connected with a driving mechanism, and a spring 10 and a composite packing 11 are arranged between the valve rod 16 and the valve cover 9.

In this embodiment, the driving mechanism includes a bracket 13, an indicator 14 and a pneumatic device 15, the indicator 14 and the pneumatic device 15 are respectively connected with the bracket 13, the valve rod 16 passes through the valve cover 9 and is connected with the indicator 14, and the indicator 14 is connected with the pneumatic device 15. Therefore, the valve rod 16 can be better driven, and the valve plug 3 is further driven to be matched with the valve seat 2 to realize sealing or opening.

In this embodiment, the bonnet 9 is connected to the valve body 1 by a bolt and nut fit. The disassembly and the assembly are convenient.

In the present embodiment, a sealing gasket 6 is provided between the bonnet 9 and the valve body 1. The sealing performance between the bonnet 9 and the valve body 1 is further improved.

In the present embodiment, a bushing 4 and an orientation sleeve 5 are arranged between the valve stem 16 and the valve body 1, and the orientation sleeve 5 is arranged inside the bushing 4. The cooperation of the bush 4 and the orientation sleeve 5 has a guiding effect, which ensures accurate rotation of the valve stem 16.

In this embodiment, the support 13 is provided with a packing gland 12, and the packing gland 12 is installed in cooperation with the composite packing 11. Thereby making the composite packing 11 more compact.

Example two:

in conclusion, when the valve is used, the valve rod 16 is lifted or lowered through the pneumatic device 15, so that the valve core 3 is driven to ascend or descend, the valve seat 2 is blocked or the valve seat 2 is opened through the valve core 3, opening of different degrees of a valve flow channel can be achieved, and distribution and accurate control of pipeline flow are conducted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a balanced two to well single seat governing valve which characterized in that, includes valve body, valve rod and valve gap, and the valve rod is installed inside the valve body, and the valve gap is installed at the top of valve body, is provided with the disk seat on the valve body, valve rod one end is provided with the case, and this case is connected with the disk seat cooperation, and the other end of valve rod passes the valve gap and is connected with actuating mechanism, be provided with spring and compound packing between valve rod and the valve gap.

2. A balanced double-to-single seat regulator valve according to claim 1, wherein: the driving mechanism comprises a support, an indicator and a pneumatic device, the indicator and the pneumatic device are respectively connected with the support, the valve rod penetrates through the valve cover to be connected with the indicator, and the indicator is connected with the pneumatic device.

3. A balanced double-to-single seat regulator valve according to claim 1, wherein: the valve cover is connected with the valve body through the matching of a bolt and a nut.

4. A balanced double-to-single seat regulator valve according to claim 1, wherein: and a sealing gasket is arranged between the valve cover and the valve body.

5. A balanced double-to-single seat regulator valve according to claim 1, wherein: a bushing and a directional sleeve are arranged between the valve rod and the valve body, and the directional sleeve is arranged on the inner side of the bushing.

6. A balanced double-to-single seat regulator valve according to claim 2, wherein: and the support is provided with a packing gland which is installed in a matching way with the composite packing.