CN213899909U

CN213899909U - High-neck type balanced program control valve

Info

Publication number: CN213899909U
Application number: CN202023098325.8U
Authority: CN
Inventors: 谢海勇; 谢海龙; 金春; 周陈彬
Original assignee: Zhejiang Zhongfu Fluid Machinery Co ltd
Current assignee: Zhejiang Zhongfu Fluid Machinery Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-08-06
Anticipated expiration: 2030-12-21

Abstract

The utility model relates to the technical field of valves, specifically speaking relates to a high neck type balanced type program control valve, before the valve with after the valve, be linked together before the valve with after the valve, the valve gap is installed at the top between before the valve and after the valve, the balance hole has been seted up at the top before the valve, the uide bushing is installed to the bottom of valve gap, the inboard slip of uide bushing is provided with balanced piston, the vertical valve rod that is provided with in inboard middle part of uide bushing, valve rod and balanced piston sliding connection, the passageway has been seted up to the inboard of valve gap, the top in balance hole is passed through pipeline and the interior access connection of valve gap, the bottom of passageway is linked together with the inboard of uide bushing, the valve clack is installed to the bottom of valve rod. In the high-neck balanced type program control valve, a gas medium enters from the front of the valve, so that the pneumatic actuator can close the valve only by overcoming the sealing specific pressure and the packing resistance, the driving force is small, the valve has good sealing performance, the heat dissipation at the top of the valve cover is good, and the gas blowby between the gas in the cylinder and the medium in the valve can be prevented to influence the medium quality.

Description

High-neck type balanced program control valve

Technical Field

The utility model relates to the technical field of valves, specifically speaking relates to a high neck type balanced type program controlled valve.

Background

The programmable valve is a cut-off valve driven by pneumatic, hydraulic and other modes, when the programmable valve is used, the valve can be closed only by overcoming resistance with large driving force, so that the valve is not convenient to open and close, the sealing performance and the heat dissipation effect are not good enough, gas in the valve and gas in the cylinder blow-by easily, the medium quality is influenced, and the high-frequency switching of the pressure in the front of the valve and the pressure in the rear of the valve can not be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high neck type balanced type program controlled valve to solve the problem that proposes among the above-mentioned background art.

In order to realize the above-mentioned purpose, the utility model provides a high neck type balanced type programmable valve, before the valve and after the valve, be linked together before the valve and after the valve, the valve gap is installed at the top between before the valve and after the valve, the balancing hole has been seted up at the top before the valve, the uide bushing is installed to the bottom of valve gap, the inboard slip of uide bushing is provided with balanced piston, the vertical valve rod that is provided with in inboard middle part of uide bushing, valve rod and balanced piston sliding connection, the passageway has been seted up to the inboard of valve gap, the top in pipeline and the valve gap is passed through to the top in balanced hole is connected, and the bottom of passageway is linked together with the inboard of uide bushing, the valve clack is installed to the bottom of valve rod, the cylinder is just installed to the upwards vertical extension in top of valve rod, pneumatic actuator is installed on the top of cylinder.

Preferably, a plurality of radiating fins are arranged on the outer side of the top of the guide sleeve.

Preferably, a bracket is arranged on the outer side of the middle part of the valve rod.

Preferably, a sealing ring is arranged at the bottom of the valve clack.

Preferably, the upper end and the lower end of the bracket are respectively connected with the cylinder and the valve cover through bolts.

Preferably, one side of the valve cover is connected with the top of the rear part of the valve through a bolt.

Preferably, the outer ends of the front and rear valves are connected with an external pipeline through a flange structure.

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

in this high neck type balanced type program controlled valve, gaseous medium gets into before the valve, get into the upper portion of balanced piston through the balancing hole simultaneously, the medium normal pressure that the valve clack bore, make pneumatic actuator only need overcome sealed specific pressure and the resistance of packing can close the valve, drive power is little, and this valve leakproofness is good, the heat dissipation at valve gap top is better, can prevent through the support that the interior gas of cylinder and the interior medium blowby of valve, influence the medium quality, and the balanced type setting through balanced piston, can two-way pressure-bearing leak-proof, satisfy the high frequency of valve back pressure switch before the valve.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic external structural view of the present invention;

fig. 3 is a partially enlarged schematic view of a portion a in fig. 1 according to the present invention.

The various reference numbers in the figures mean:

1. before the valve; 11. a balance hole; 2. after the valve is closed; 3. a valve cover; 31. a guide sleeve; 32. a balance piston; 33. a heat dissipating fin; 4. a valve stem; 5. a valve flap; 51. a seal ring; 6. a support; 7. a cylinder; 8. and a pneumatic actuator.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

The utility model provides a high neck type balanced program control valve, as shown in figure 1-figure 3, including valve front 1 and valve back 2, communicate between valve front 1 and the valve back 2, valve gap 3 is installed at the top between valve front 1 and the valve back 2, be used for sealing the top, balance hole 11 has been seted up at the top of valve front 1, guarantee that medium gas passes through, uide bushing 31 is installed to the bottom of valve gap 3, the inboard slip of uide bushing 31 is provided with balanced piston 32, the balance of pressure from top to bottom is realized through the removal of balanced piston 32, the inboard middle part of uide bushing 31 is vertically provided with valve rod 4, be convenient for drive valve clack 5 motion, valve rod 4 and balanced piston 32 closely weld, the passageway has been seted up to the inboard of valve gap 3, the top of balance hole 11 passes through the pipeline and is connected with the passageway in the valve gap 3, the bottom of passageway is linked together with the inboard of uide bushing 31, guarantee that medium gas passes through, valve clack 5 is installed to the bottom of valve rod 4, and the cylinder 7 is installed to the upwards vertical extension in top of valve rod 4, and pneumatic actuator 8 is installed on the top of cylinder 7, drives cylinder 7 work through pneumatic actuator 8, and then makes the motion of valve rod 4, drives the motion of valve clack 5, realizes opening and shutting of valve.

In this embodiment, a plurality of heat dissipation fins 33 are installed on the outer side of the top of the guide sleeve 31, so as to achieve a certain heat dissipation effect.

Specifically, the support 6 is installed in the middle part outside of valve rod 4 for guarantee that valve rod 4 is stable, and can prevent the blowby between cylinder gas and the medium gas.

Further, a sealing ring 51 is installed at the bottom of the valve clack 5, and is used for ensuring the sealing performance of the joint of the valve clack 5 and the valve.

Furthermore, the upper end and the lower end of the support 6 are respectively connected with the cylinder 7 and the valve cover 3 through bolts, so that the support 6 is convenient to fix.

Furthermore, one side of the valve cover 3 is connected with the top of the valve back 2 through a bolt, so that the valve cover 3 is convenient to mount.

Furthermore, the outer ends of the front valve 1 and the rear valve 2 are connected with an external pipeline through flange structures, so that the whole valve can be conveniently installed.

The high-neck balanced type program control valve of this embodiment is when using, at first finish the device equipment, install it on the pipeline again, the medium gets into from valve front 1, through guaranteeing that medium gas passes through, get into the balanced piston 32 upper portion of valve gap 3 below, move through promoting balanced piston 32, make balanced piston 32 upper and lower both sides pressure balanced, thereby guarantee that 1 is balanced with 2 pressure behind the valve before the valve, drive cylinder 7 work through pneumatic actuator 8 after that, and then make valve rod 4 motion, drive valve clack 5 motion, realize opening and shutting of valve, only need overcome sealed specific pressure and packing resistance and can close the valve when the operation, the drive power of valve switch has been reduced.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high neck type balanced type program controlled valve, includes before the valve (1) and behind the valve (2), its characterized in that: the valve is characterized in that the valve is communicated with the valve back (2) before (1), the valve cover (3) is installed at the top between the valve front (1) and the valve back (2), a balance hole (11) is formed in the top of the valve front (1), a guide sleeve (31) is installed at the bottom of the valve cover (3), a balance piston (32) is arranged on the inner side of the guide sleeve (31) in a sliding mode, a valve rod (4) is vertically arranged in the middle of the inner side of the guide sleeve (31), the valve rod (4) is connected with the balance piston (32) in a sliding mode, a channel is formed in the inner side of the valve cover (3), the top end of the balance hole (11) is connected with the channel in the valve cover (3) through a pipeline, the bottom end of the channel is communicated with the inner side of the guide sleeve (31), a valve clack (5) is installed at the bottom end of the valve rod (4), the top end of the valve rod (4) vertically extends upwards and is provided with a cylinder (7), and a pneumatic actuator (8) is arranged at the top end of the air cylinder (7).

2. The high neck balanced programmable valve of claim 1 further comprising: and a plurality of radiating fins (33) are arranged on the outer side of the top of the guide sleeve (31).

3. The high neck balanced programmable valve of claim 1 further comprising: and a support (6) is arranged on the outer side of the middle part of the valve rod (4).

4. The high neck balanced programmable valve of claim 1 further comprising: and a sealing ring (51) is arranged at the bottom of the valve clack (5).

5. The high neck balanced programmable valve of claim 3 wherein: the upper end and the lower end of the support (6) are respectively connected with the cylinder (7) and the valve cover (3) through bolts.

6. The high neck balanced programmable valve of claim 1 further comprising: one side of the valve cover (3) is connected with the top of the valve back (2) through a bolt.

7. The high neck balanced programmable valve of claim 1 further comprising: the outer ends of the front valve (1) and the rear valve (2) are connected with an external pipeline through flange structures.