CN215522004U

CN215522004U - Regulating valve with filter screen

Info

Publication number: CN215522004U
Application number: CN202122241998.2U
Authority: CN
Inventors: 汪蓉梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-01-14
Anticipated expiration: 2031-09-16

Abstract

The application discloses a regulating valve with a filter screen, and the regulating valve provided by the utility model comprises a valve body, a valve seat and a valve seat, wherein the valve seat is arranged in the valve body; the valve cover is matched with the valve body to form a regulating valve body; the valve rod penetrates through the valve cover, the lower end of the valve rod is connected with the valve core, and the valve rod is used for driving the valve core to move up and down; the execution bracket is arranged at the upper end of the valve cover; the pneumatic actuator is erected at the upper end of the actuating support, and the upper end of the valve rod is connected with the pneumatic actuator; the filter is arranged at the lower end of the valve seat and comprises a filter cartridge and a filter screen, and the filter screen is arranged at the lower opening of the filter cartridge; the medium enters from the water inlet and flows out from the water outlet after being filtered by the filter screen, and the filter screen is arranged at the bottom of the valve seat, so that the filtering effect is better.

Description

Regulating valve with filter screen

Technical Field

The utility model relates to the technical field of valves, in particular to a regulating valve with a filter screen.

Background

The regulating valve is also called a control valve, and in the field of industrial automation process control, the final control element for changing the process parameters of medium flow, pressure, temperature, liquid level and the like by power operation through receiving the control signal output by the regulating control unit. Generally consisting of an actuator and a valve. If according to the stroke characteristic, the regulating valve can be divided into a straight stroke and an angular stroke; the pneumatic regulating valve, the electric regulating valve and the hydraulic regulating valve can be divided into three types according to the power used by the matched executing mechanism; the method is divided into three types, namely a linear characteristic, an equal percentage characteristic and a parabolic characteristic according to functions and characteristics of the method. The common classification of regulating valves: pneumatic regulating valve, electric regulating valve, hydraulic regulating valve and self-operated regulating valve.

In the use process, impurities are contained in the medium and are required to be filtered frequently, but in the prior art, a filter screen is usually arranged at a water inlet, so that the replacement is not easy. For example, chinese patent with publication number CN108087246A discloses a dedicated inlet regulating valve for air compressor, and its structure is, including disk seat, case, valve rod, fixing base and carousel, the left and right sides of disk seat is equipped with air inlet and gas outlet respectively, the T-slot with the case intercommunication is seted up to the lower extreme of disk seat, the inside in T-slot is equipped with filter mechanism, filter mechanism includes the base and sets up the baffle in the base upper end perpendicularly, the filter screen standing groove has been seted up to the right side wall of baffle, two symmetric distribution's spout has been seted up along the horizontal direction in the upper and lower both ends of filter screen standing groove, the inside of filter screen standing groove is equipped with two filter screens, just the upper and lower extreme of filter screen all passes through slider and spout sliding connection. Although the filter screen can be replaced conveniently by the adjusting valve, the filter screen is vertically arranged, so that the impurities at the lower end are more than those at the upper end after the adjusting valve is used for a period of time, the filter screen at the lower end is blocked, the capacity of a filter medium of the filter screen is reduced, and the effect of filtering the impurities is poor; and after using between one section, if not in time clear up, can make to strain easy jam.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a regulating valve with a filter screen, and aims to solve the problems that in the prior art, the regulating valve is poor in filtering effect, and impurities on the filter screen are easy to accumulate on the filter screen after the regulating valve is used for a period of time, so that the filter screen is easy to generate.

In order to achieve the above object, the present invention provides a control valve with a filter screen, comprising:

the water inlet and the water outlet are arranged at two ends of the valve body, and a valve seat is arranged inside the valve body;

the valve cover is matched with the valve body to form a regulating valve body;

the valve rod penetrates through the valve cover, the lower end of the valve rod is connected with a valve core, and the valve rod is used for driving the valve core to move up and down so that the valve core is matched with the valve seat to realize the opening and closing of the regulating valve;

the execution bracket is arranged at the upper end of the valve cover;

the pneumatic actuator is erected at the upper end of the execution bracket, the upper end of the valve rod is connected with the pneumatic actuator, and the pneumatic actuator is used for controlling the valve rod to move up and down;

the filter is arranged at the lower end of the valve seat and comprises a filter cylinder and a filter screen, and the filter screen is arranged at a cylinder opening at the lower end of the filter cylinder along the axis;

the medium enters from the water inlet, is filtered by the filter screen and then flows out from the water outlet.

Furthermore, the filter screen is fixedly connected with the filter cartridge, a first hollow ring is arranged at the center of the filter screen, and an annular bulge is arranged inside the first hollow ring; a first connecting rod is fixedly arranged at the bottom of the valve core, the first connecting rod penetrates through the hollow ring, and a wave flexible layer is arranged on the surface of the connecting rod;

when the valve core drives the first connecting rod to move, the wave flexible layer is in contact with the annular bulge, so that the filter screen generates vibration.

Furthermore, the filter screen is rotatably arranged at the lower end opening of the filter cylinder, a second hollow ring is arranged at the center of the filter screen, spiral grains are arranged on the inner wall of the second hollow ring, a second connecting rod is arranged at the bottom of the valve core, and a spiral groove is formed in the surface of the second connecting rod;

when the valve core drives the second connecting rod to move, the spiral groove in the second connecting rod is matched with the spiral thread, so that the filter screen rotates.

Furthermore, a clamping hook is arranged on the filter cylinder, and a clamping groove matched with the clamping hook is arranged on the valve seat.

Furthermore, a sewage discharge hole is formed in the bottom of the valve body and is located at the bottom of the valve seat, and a sewage discharge cover is connected to the inside of the sewage discharge hole in a threaded mode.

Further, the bottom of the valve seat is conical, and the sewage discharge hole is formed in the bottom of the valve seat.

Further, the inner surface of the valve body is provided with a fluorine lining layer.

In summary, the utility model has the following advantages: (1) the filter is clamped at the bottom of the valve seat, so that the filtering effect is better, and the filter is convenient to disassemble and assemble; (2) the connecting rod is arranged, so that the filter screen generates vibration, impurities can easily fall off from the filter screen, and the using effect of the filter screen is ensured; (3) the fluorine lining layer is arranged and has corrosion resistance, so that the service life of the regulating valve is prolonged.

Drawings

FIG. 1 is a block diagram of one embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 of the present invention;

fig. 3 is a block diagram of another embodiment of the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As used herein, the singular forms "a", "an", "the" and "the" include plural referents unless the content clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, units, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Example 1: referring to fig. 1 to 3, in an embodiment of the present invention, a regulating valve with a filter screen is characterized by including:

a valve body 100, both ends of which are provided with a water inlet 110 and a water outlet 120, and a valve seat 130 is arranged inside the valve body 100;

the valve cover 200 is connected with the valve body 100 through bolts, and is matched with the valve body 100 to form a regulating valve body;

the valve rod 300 is arranged in the valve cover 200 in a penetrating manner, the lower end of the valve rod 300 is fixedly connected with the valve core 310, and the valve rod 300 is used for driving the valve core 310 to move up and down, so that the valve core 310 is matched with the valve seat 130 to realize the opening and closing of the regulating valve;

an actuating bracket 400 provided at an upper end of the valve cover 200;

the pneumatic actuator 500 is erected at the upper end of the actuating bracket 400, the upper end of the valve rod 300 is connected with the pneumatic actuator 500, and the pneumatic actuator 500 is used for controlling the valve rod 300 to move up and down; the pneumatic actuator 500 can be connected with electrical equipment, so that the regulating valve can be accurately controlled;

the filter 600 is arranged at the lower end of the valve seat 130, the filter 600 comprises a filter cartridge 610 and a filter screen 620, the upper end of the filter cartridge 610 is provided with a clamping hook 611, and the filter screen 620 is arranged at the cylinder opening of the lower end of the filter cartridge 610 along the axial line;

wherein, the medium enters from the water inlet 110, is filtered by the filter 600 and then flows out from the water outlet 120.

In order to make the effect of passing through filter screen 620 through the medium better, set up filter 600 in the bottom of valve seat 130, filter screen 620 level sets up in the bottom of valve seat 130, because the supreme filter screen 620 that passes is followed down when the medium passes through filter screen 620 department, make the medium can have better filter effect, and because the level sets up filter screen 620, make filterable impurity more easy drop from filter screen 620, the piling up of impurity on filter screen 620 has been reduced, the filter effect of filter screen 620 has been guaranteed.

The filter cartridge 610 is provided with a plurality of hooks 611 uniformly distributed in the outer circumferential direction of the nozzle far away from one end of the filter screen 620, and the valve seat 130 is provided with a clamping groove matched with the hooks 611.

Through the cooperation of the hooks 611 and the slots, the filter 610 is more convenient to disassemble and assemble.

The bottom of the valve body 100 is provided with a drain hole 140, the drain hole 140 is located at the bottom of the valve seat 130, and a drain cover 141 is connected to the drain hole 140 through a thread.

By unscrewing the sewage discharge cover 141 from the sewage discharge hole 140, the sewage in the regulating valve can be discharged, so that the sewage discharge operation is more convenient.

The bottom of the valve seat 100 is tapered and the soil exhaust hole 140 is located at the bottom of the taper.

The toper is favorable to collecting the impurity that drops from filter screen 620, and sets up the toper, is favorable to the collection of impurity, reduces the mixing probability that the medium got into from the water inlet and toper bottom sewage, prevents that fresh medium from being polluted by the sewage of valve body 100 bottom.

The interior surface of the valve body 100 is provided with a fluorine-lined layer 150.

The fluorine lining layer 150 is made of fluoroplastic which is a corrosion-resistant and oxidation-resistant material, so that the corrosion resistance of the valve body 100 can be effectively improved, and the service life of the regulating valve is prolonged.

Example 2: referring to fig. 2, the present embodiment is similar to embodiment 1 in structure, except that: the filter screen 620 is fixedly connected with the filter cartridge 610, a first hollow ring 621 is arranged at the center of the filter screen 620, and an annular protrusion 622 is arranged inside the first hollow ring 621; the bottom of the valve core 310 is fixedly provided with a first connecting rod 320, the first connecting rod 320 is arranged in the hollow ring 621 in a penetrating manner, and the surface of the connecting rod 320 is provided with a wave flexible layer 321; when the valve core 310 drives the first connecting rod 320 to move, the wave flexible layer 321 on the first connecting rod 320 contacts with the annular protrusion 622, so that the filter screen 620 generates vibration.

In order to reduce the accumulation degree of impurities on the filter screen 620, the first connecting rod 320 is arranged at the bottom of the valve core 310, the wave flexible layer 321 is arranged on the surface of the first connecting rod 320, the valve core 310 is driven to move through the valve rod 300, the valve core 310 drives the first connecting rod 320 to move, the wave flexible layer 321 on the outer layer of the first connecting rod 320 is in contact with the annular protrusion 622 in the first hollow ring 621, when the annular protrusion 622 and the flexible wave layer 321 are in contact and move relatively, the filter screen 620 can vibrate, impurities on the filter screen 620 fall off from the filter screen 620, the adhesion of the impurities on the filter screen 620 is reduced, the filtering effect of the filter screen 620 is ensured, and the problem that the filter screen 620 is blocked due to the accumulation of the impurities is effectively solved.

Example 3: referring to fig. 3, the present embodiment has a structure similar to that of embodiment 1, except that a filter screen 620 is rotatably disposed at a lower end cylindrical opening of the filter cartridge 610, a bearing 625 is disposed at a contact position of the filter screen 620 and the lower end cylindrical opening of the filter cartridge 610, so that the filter screen 620 can rotate relatively easily, a second hollow ring 623 is disposed at a center of the filter screen 620, spiral threads 624 are disposed on an inner wall of the second hollow ring 623, a second connecting rod 330 is disposed at a bottom of the valve core 310, and a spiral groove 331 is disposed on a surface of the second connecting rod 330; when the valve core 310 drives the second connecting rod 330 to move, the spiral groove 331 on the second connecting rod 330 cooperates with the spiral line 624, so that the filter screen 620 rotates.

Cooperate through helicla flute 311 and spiral line 624, make when valve rod 300 drives case 310 motion, case 310 drives second connective bar 330 and moves, make filter screen 620 can produce rotatoryly, because medium has in valve body 100, filter screen 620 can produce relative motion with the medium when rotatory, make impurity on the filter screen 620 drop from filter screen 620, impurity attachment on filter screen 620 has been reduced, thereby filter screen 620's filter effect has been guaranteed, the effectual problem of making filter screen 620 to be blockked up because piling up of impurity of having solved.

According to the utility model, the filter 600 is arranged, so that a medium is filtered by the filter 600, impurities on the filter 620 can easily fall off from the filter 620 due to the horizontal arrangement of the filter 620 on the filter 600, and the pneumatic actuator 400 is arranged, so that the opening and closing of the regulating valve can be controlled pneumatically, and the opening and closing of the regulating valve can be controlled accurately.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a take governing valve of filter screen which characterized in that includes:

the valve cover is matched with the valve body to form a regulating valve body;

the execution bracket is arranged at the upper end of the valve cover;

the filter is arranged at the lower end of the valve seat and comprises a filter cylinder and a filter screen, the upper end of the filter cylinder is provided with a clamping hook, and the filter screen is arranged at a cylinder opening at the lower end of the filter cylinder along the axis;

and the medium enters from the water inlet, is filtered by the filter and then flows out from the water outlet.

2. The regulating valve with the filter screen according to claim 1, wherein the filter screen is fixedly connected with the filter cartridge, a first hollow ring is arranged at the center of the filter screen, and an annular bulge is arranged inside the first hollow ring; a first connecting rod is fixedly arranged at the bottom of the valve core, the first connecting rod penetrates through the hollow ring, and a wave flexible layer is arranged on the surface of the connecting rod;

3. The regulating valve with the filter screen according to claim 1, wherein the filter screen is rotatably arranged at a lower end opening of the filter cylinder, a second hollow ring is arranged at the center of the filter screen, spiral threads are arranged on the inner wall of the second hollow ring, a second connecting rod is arranged at the bottom of the valve core, and a spiral groove is arranged on the surface of the second connecting rod;

4. The regulating valve with the filter screen as claimed in any one of claims 1 to 3, wherein the filter cartridge is provided with a hook, and the valve seat is provided with a slot engaged with the hook.

5. The regulating valve with the filter screen as claimed in any one of claims 1 to 3, wherein a drain hole is provided at the bottom of the valve body, the drain hole is located at the bottom of the valve seat, and a drain cover is screwed into the drain hole.

6. The filter screen-equipped regulating valve according to claim 5, wherein the bottom of the valve seat is tapered, and the drain hole is located at the bottom of the valve seat.

7. The filter screen equipped regulation valve of claim 6, wherein the valve body has a fluorine-lined layer on the inner surface.