CN213541305U - Corrosion-resistant pneumatic regulating valve - Google Patents

Abstract

The utility model discloses a corrosion-resistant pneumatic control valve, the valve body part includes a valve body, a ceramic lining arranged in the valve body cavity, a flange arranged at the left end of the valve body and a filter layer arranged in the flange, the upper cover part includes a cover cylinder, a first bolt and nut for fixedly connecting the cover cylinder and the valve body and a filler seal arranged at the top end of the inner part of the cover cylinder, the valve cylinder part includes an actuator frame cylinder, a second bolt and nut for fixedly connecting the actuator frame cylinder and the cover cylinder, a stroke scale arranged on the actuator frame cylinder, a seal ring arranged at the bottom end of the inner part of the actuator frame cylinder and a gland fixed at the upper end of the seal ring, the utility model has the function of filtering fluid, prevents the opening at the middle part of a valve seat from being blocked, reduces the maintenance times of the whole pneumatic control valve, lightens the workload of people, and can effectively prevent the fluid from corroding the valve body, the service life of the whole pneumatic regulating valve is prolonged, and the sealing effect is enhanced.

Description

Corrosion-resistant pneumatic regulating valve

Technical Field

The utility model relates to a pneumatic valve technical field specifically is a corrosion resistance's pneumatic control valve.

Background

The pneumatic control valve uses compressed gas as a power source, uses a cylinder as an actuator, drives a valve by means of accessories such as a valve positioner, a converter, an electromagnetic valve, a position-retaining valve, a gas storage tank, a gas filter and the like, realizes switching value or proportional regulation, and receives a control signal of an industrial automatic control system to complete the regulation of a pipeline medium: the pneumatic control valve has the advantages that the pneumatic control valve is simple to control, quick in reaction and safe in nature, explosion-proof measures are not needed, the existing pneumatic control valve adopts corrosion-resistant plastics as a lining, abrasion is easy to cause, corrosion resistance is poor, the service life of the pneumatic control valve can be prolonged only to a certain extent, a filtering device is not arranged, internal blockage is easy to cause, in addition, the existing pneumatic control valve only adopts a single-form sealing gasket to seal, aging is easy after the pneumatic control valve is used for a period of time, the sealing effect is poor, frequent maintenance is needed, inconvenience is brought to people, and therefore the corrosion-resistant pneumatic control valve is provided to solve the defects.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims at providing a corrosion resistance's pneumatic control valve has the function of filtering the fluid, prevents to block up the opening at disk seat middle part, has reduced the holistic maintenance number of times of pneumatic control valve, has alleviateed people's work load, can effectively prevent the corruption of fluid to the valve body, improves the holistic life of pneumatic control valve, has strengthened sealed effect.

For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

a corrosion resistant pneumatic regulator valve, comprising:

the valve body component comprises a valve body, a ceramic lining arranged in an inner cavity of the valve body, a flange arranged at the left end of the valve body and a filter layer arranged inside the flange; the upper cover component comprises a cover cylinder, a first bolt and a nut which fixedly connect the cover cylinder and the valve body, and a packing seal arranged at the top end of the interior of the cover cylinder; the valve cylinder component comprises an actuator frame cylinder, a second bolt and nut which fixedly connects the actuator frame cylinder and the cover cylinder, a stroke scale arranged on the actuator frame cylinder, a sealing ring arranged at the bottom end inside the actuator frame cylinder and a gland fixed at the upper end of the sealing ring; pneumatic executive component, be in including cavity, setting air inlet, the level setting at the top middle part of cavity are in the diaphragm of the inside of cavity, setting are in roof, one end on the diaphragm with the top fixed connection of roof and other one end with the inside bottom fixed connection's of cavity reset spring, one end with the bottom middle part fixed connection and the other end of roof run through respectively the cavity the executor frame section of thick bamboo with a cover section of thick bamboo extends to the valve rod of the inner chamber of valve body, setting are in the pointer dish at the middle part of valve rod and installing the case of the other end of valve rod.

As a corrosion resistant pneumatic control valve's an preferred scheme, wherein, the inside top of valve body is equipped with the stopper. As a corrosion resistant pneumatic control valve an preferred scheme, wherein, the cavity pass through screw nut with executor frame section of thick bamboo fixed connection. As a preferable aspect of the corrosion-resistant pneumatic control valve of the present invention, wherein the filter layer is made of a corrosion-resistant material.

Compared with the prior art, the utility model discloses the beneficial effect who has is: when the pneumatic valve is used specifically, when fluid enters the valve body from the flange at the left end, the fluid passes through the filter layer, the filter layer isolates large particle impurities in the fluid to the outside to prevent blocking an opening in the middle of the valve seat, the maintenance frequency of the whole pneumatic regulating valve is reduced, the workload of people is reduced, the arranged ceramic lining can effectively prevent the fluid from corroding the valve body, the service life of the whole pneumatic regulating valve is prolonged, the arranged filler seal is used for sealing the cover cylinder and the valve body, the integral air tightness of the pneumatic valve is improved, the arranged seal ring is used for double sealing to enhance the sealing performance of the pneumatic valve, the gland is used for fixing the seal ring, gas enters the cavity from the gas inlet, along with the increase of gas pressure, the top plate drives the valve core to move downwards through the valve rod to close the opening in the valve body, meanwhile, the top plate extrudes the reset spring, when, reset spring will drive valve rod and case rebound through the roof, makes the opening in the valve body open, and the pointer dish of setting on the valve rod will be along with reciprocating, instruct on the stroke scale simultaneously, the utility model discloses have the function of filtering the fluid, prevent to block up the opening at disk seat middle part, reduced the holistic maintenance number of times of pneumatic control valve, alleviateed people's work load, can effectively prevent the corruption of fluid to the valve body, improve the holistic life of pneumatic control valve, strengthened sealed effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is a schematic view of the overall structure of a corrosion-resistant pneumatic control valve of the present invention;

fig. 2 is a schematic view of the filter layer of fig. 1 of a corrosion-resistant pneumatic regulator valve of the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides a corrosion resistance's pneumatic control valve has the function of filtering the fluid, prevents to block up the opening at disk seat middle part, has reduced the holistic maintenance number of times of pneumatic control valve, has alleviateed people's work load, can prevent effectively that the fluid from to the corruption of valve body, improves the holistic life of pneumatic control valve, has strengthened sealed effect.

Fig. 1-2 are schematic structural views illustrating an embodiment of a corrosion-resistant pneumatic regulator valve according to the present invention, and referring to fig. 1-2, the corrosion-resistant pneumatic regulator valve of the present invention includes a valve body 100, an upper cover member 200, a valve cylinder 300, and a pneumatic actuator 400.

Valve body part 100 is used for filtering impurity and anticorrosion, specifically, valve body part 100 includes valve body 110, set up ceramic lining 120 at the valve body 110 inner chamber, set up flange 130 at the left end of valve body 110 and set up the filter layer 140 in the inside of flange 130, during the specific use, when fluid gets into valve body 110 from flange 130 of left end, will pass through filter layer 140, filter layer 140 keeps apart the large granule impurity in the fluid outside, prevent to block up the opening in valve seat middle part, the holistic maintenance number of times of pneumatic control valve has been reduced, people's work load has been lightened, the corrosion of fluid to valve body 110 can effectively be prevented to the ceramic lining 120 of setting, improve the holistic life of pneumatic control valve. The upper cover part 200 is used for connecting the valve body part 100 and the valve cylinder part 300 in a sealing manner, specifically, the upper cover part 200 comprises a cover cylinder 210, a first bolt and nut 220 fixedly connecting the cover cylinder 210 and the valve body 110 and a packing seal 230 arranged at the top end of the interior of the cover cylinder 210, when the pneumatic valve is used specifically, the cover cylinder 210 is connected with the valve body 110 through the first bolt and nut 220, and the packing seal 230 is arranged for sealing the cover cylinder 210 and the valve body 110, so that the overall air tightness of the pneumatic valve is improved. The valve cylinder component 300 is used for accommodating an actuator mechanism, specifically, the valve cylinder component 300 comprises an actuator frame cylinder 310, a second bolt and nut 320 for fixedly connecting the actuator frame cylinder 310 and a cover cylinder 210, a stroke scale 330 arranged on the actuator frame cylinder 310, a sealing ring 340 arranged at the inner bottom end of the actuator frame cylinder 310, and a gland 350 fixed at the upper end of the sealing ring 340, when the valve is specifically used, the actuator frame cylinder 310 and the cover cylinder 210 are connected through the second bolt and nut 320, the arranged sealing ring 340 is used for double sealing, so that the sealing performance of the pneumatic valve is enhanced, and the gland 350 is used for fixing the sealing ring 340. The pneumatic actuator 400 is used, specifically, the pneumatic actuator 400 includes a cavity 410, an air inlet 420 disposed in the middle of the top end of the cavity 410, a diaphragm 430 horizontally disposed in the cavity 410, a top plate 440 disposed on the diaphragm 430, a return spring 450 having one end fixedly connected to the top end of the top plate 440 and the other end fixedly connected to the bottom end of the cavity 410, a valve rod 460 having one end fixedly connected to the middle of the bottom end of the top plate 440 and the other end extending to the inner cavity of the valve body 110 through the cavity 410, the actuator frame tube 310 and the cover tube 210, a pointer plate 470 disposed in the middle of the valve rod 460, and a valve plug 480 mounted at the other end of the valve rod 460, when in use, air enters the cavity 410 from the air inlet 420, and as the air pressure increases, the top plate 440 drives the valve plug 480 to move downward through the valve rod 460, so as to close the opening in the valve body 110, and the top plate 440, when the air pressure is reduced, the return spring 450 drives the valve rod 460 and the valve core 480 to move upwards through the top plate 440, so that the opening in the valve body 110 is opened, and the pointer disc 470 arranged on the valve rod 460 moves upwards and downwards along with the movement, and simultaneously indicates on the stroke scale 330. With reference to fig. 1-2, in a specific use of the corrosion-resistant pneumatic control valve of the present embodiment, when a fluid enters the valve body 110 from the flange 130 at the left end, the fluid passes through the filter layer 140, the filter layer 140 isolates large particle impurities in the fluid to the outside, so as to prevent blocking of an opening in the middle of the valve seat, reduce maintenance times of the whole pneumatic control valve, reduce workload of people, the ceramic liner 120 is disposed to effectively prevent the fluid from corroding the valve body 110, improve the service life of the whole pneumatic control valve, the packing seal 230 is disposed to seal the cover cylinder 210 with the valve body 110, improve the whole airtightness of the pneumatic valve, the sealing ring 340 is disposed to double seal, so that the sealing performance of the pneumatic valve is enhanced, the gland 350 is disposed to fix the sealing ring 340, the gas enters the cavity 410 from the gas inlet 420, and the top plate 440 drives the valve core 480 to move downward through the valve stem 460 as the gas pressure increases, close the opening in the valve body 110, roof 440 carries out the extrusion state to reset spring 450 simultaneously, when atmospheric pressure reduces, reset spring 450 will drive valve rod 460 and case 480 through roof 440 and upwards remove, makes the opening in the valve body 110 open, and pointer plate 470 who sets up on valve rod 460 will be along with reciprocating, simultaneously instructs on stroke scale 330, the utility model discloses have the function of filtering the fluid, prevent to block up the opening at disk seat middle part, has reduced the holistic maintenance number of times of pneumatic control valve, has alleviateed people's work load, can effectively prevent the corruption of fluid to the valve body, improves the holistic life of pneumatic control valve, has strengthened sealed effect.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (4)

1. A corrosion resistant pneumatic regulator valve, comprising:

the valve body component (100) comprises a valve body (110), a ceramic lining (120) arranged in an inner cavity of the valve body (110), a flange (130) arranged at the left end of the valve body (110) and a filter layer (140) arranged inside the flange (130); an upper cover member (200) including a cover cylinder (210), a first bolt and nut (220) fixedly connecting the cover cylinder (210) and the valve body (110), and a packing seal (230) provided at an inner top end of the cover cylinder (210); the valve cylinder component (300) comprises an actuator frame cylinder (310), a second bolt and nut (320) for fixedly connecting the actuator frame cylinder (310) and the cover cylinder (210), a stroke scale (330) arranged on the actuator frame cylinder (310), a sealing ring (340) arranged at the inner bottom end of the actuator frame cylinder (310) and a gland (350) fixed at the upper end of the sealing ring (340); the pneumatic execution component (400) comprises a cavity (410), an air inlet (420) arranged in the middle of the top end of the cavity (410), a diaphragm (430) horizontally arranged in the cavity (410), a top plate (440) arranged on the diaphragm (430), a return spring (450) with one end fixedly connected with the top end of the top plate (440) and the other end fixedly connected with the bottom end in the cavity (410), a valve rod (460) with one end fixedly connected with the middle of the bottom end of the top plate (440) and the other end respectively penetrating through the cavity (410), the actuator frame barrel (310) and the cover barrel (210) to extend to an inner cavity of the valve body (110), a pointer disc (470) arranged in the middle of the valve rod (460) and a valve core (480) arranged at the other end of the valve rod (460).

2. A corrosion resistant pneumatic regulator valve in accordance with claim 1, wherein the valve body (110) is provided with a stopper at the inner top end.

3. The corrosion-resistant pneumatic regulator valve of claim 1, wherein the cavity (410) is fixedly connected to the actuator cartridge (310) by a threaded nut and a threaded rod.

4. A corrosion resistant pneumatic regulator valve in accordance with claim 1, wherein said filter layer (140) is made of a corrosion resistant material.

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