CN216418571U

CN216418571U - Self-operated exhaust balance valve

Info

Publication number: CN216418571U
Application number: CN202122941039.1U
Authority: CN
Inventors: 梁鸿坡; 金明钦; 陈庆平; 沈少华
Original assignee: Fujian Quanpai Valve Technology Co ltd
Current assignee: Fujian Quanpai Valve Technology Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-05-03
Anticipated expiration: 2031-11-26

Abstract

The utility model provides a can not cause the damage of self-operated exhaust balance valve after long-term use yet, can satisfy the self-operated exhaust balance valve of the use of self-operated exhaust balance valve, including the T shape valve body that has three passageway, three passageway is an exhaust passage and two delivery channel respectively, the inner chamber center of T shape valve body violently is equipped with the case, the middle part of case is flange portion, and both sides of flange portion are equipped with the fitting surface with cavity wall matched with in the T shape valve body, be equipped with respectively in two delivery channel of T shape valve body and press the cap, two pressure caps withstand the position of two horizontal terminal surfaces of case with fixed valve core through the pressure spring respectively, lie in on the T shape valve body be provided with in the delivery channel and flow to the filter equipment who carries out abundant filtration to the medium before pressing the cap.

Description

Self-operated exhaust balance valve

Technical Field

The utility model relates to a formula of relying on oneself balanced valve technical field, concretely relates to formula of relying on oneself exhaust balanced valve.

Background

The self-operated balance valve is a valve with special functions, and the valve has no special features and only has different use functions and places. In some industries, since there is a large pressure or flow difference between the media (various flowable materials) in various parts of the pipes or vessels, in order to reduce or balance the difference, a valve is installed between the corresponding pipes or vessels to adjust the relative balance of the pressures on both sides or to achieve the balance of the flow by means of flow division, and the valve is called a balance valve. The valve is generally mounted horizontally.

As shown in fig. 1, the self-operated exhaust balance valve disclosed in chinese patent No. 201020637533.8 includes a T-shaped valve body 1 having three passages, which are respectively an exhaust passage 11 and two output passages 12, and is characterized in that: the valve core 2 is transversely arranged in the center of the inner cavity of the T-shaped valve body 1, the middle part of the valve core 2 is provided with a flange part, matching surfaces matched with the inner cavity wall of the T-shaped valve body 1 are arranged on two side sides of the flange part, pressing caps 3 are respectively arranged in two output channels 12 of the T-shaped valve body 1, and the two pressing caps 3 respectively support against two transverse end faces of the valve core 2 through pressure springs 4 so as to fix the position of the valve core 2. The matching surface of the valve core 2 and the T-shaped valve body 1 is a conical surface, a plane surface or a hemispherical surface, and the ventilation form of the valve core 2 of the exhaust balance valve can be various. The valve core 2 is made of corrosion-resistant materials and has long service life. And a sealing ring 5 is arranged on the matching surface, and the sealing ring 5 is made of polytetrafluoroethylene or silica gel, so that the sealing performance is reliable. The pressure cap 3 is an adjustable pressure cap for fine adjustment of the medium flow, the adjustable pressure cap has an external thread matched with the internal thread of the output channel 12, and a user can adjust the position of the pressure cap 3 according to actual needs.

The self-operated exhaust balance valve utilizes the differential pressure action to adjust the opening of the valve, utilizes the position change of the valve core to compensate the change of the pipeline pressure, thereby keeping the differential pressure unchanged when the working condition changes, and the principle of the self-operated exhaust balance valve is that the differential pressure of a controlled system can be effectively controlled to be constant within a certain flow range, namely when the differential pressure of two pipelines connected with an output channel is increased, the differential pressure balance of the controlled system is ensured through the automatic displacement action of the valve core, and when the differential pressure is reduced, the valve core automatically resets, and the pressure of the two pipelines is still kept to be constant.

The utility model discloses a theory of operation is: when the valve has no pressure, the valve core is always in the middle position under the action of the pressure spring, so that the sectional areas of the output channels at the two sides of the valve core are equal; when the valve works, the media output by the two output ports simultaneously flow to the mixing pipeline from the exhaust channel, when the pressure of the two output ports changes, the valve core is pushed by the pressure of the high-pressure end to displace towards the low-pressure end, the sectional area of the output port of the high-pressure end is increased, and the sectional area of the output port of the low-pressure end is reduced, so that the gas output of the high-pressure end is accelerated, when the pressure is reduced to be the same as that of the low-pressure end, the valve core is displaced to achieve new balance due to the equal pressure of the two sides, and the valve core returns to the middle position again; when the self-operated exhaust balance valve is used as a two-position three-way valve, external control is not needed, and only one of the two output ports outputs a medium, one of the two output ports can be automatically closed under the action of thrust. The utility model discloses the mixing balance of two kinds of media in the specially adapted production technology.

Although the above patent can solve the corresponding technical problems, there still exist certain drawbacks:

the medium flowing to the pressure cap can not be fully filtered in the output channel on the T-shaped valve body, and the self-operated exhaust balance valve is easy to damage after long-term use, so that the use of the self-operated exhaust balance valve can not be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a damage that can not cause formula of relying on oneself exhaust balance valve after using for a long time yet, can satisfy formula of relying on oneself exhaust balance valve's the use formula of relying on oneself exhaust balance valve.

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

the self-operated exhaust balance valve comprises a T-shaped valve body with three channels, wherein the three channels are respectively an exhaust channel and two output channels, a valve core is transversely arranged in the center of an inner cavity of the T-shaped valve body, a flange part is arranged in the middle of the valve core, matching surfaces matched with the inner cavity wall of the T-shaped valve body are arranged on two sides of the flange part, pressure caps are respectively arranged in the two output channels of the T-shaped valve body, the two pressure caps respectively press two transverse end surfaces of the valve core through pressure springs to fix the position of the valve core, and a filtering device for fully filtering media before the media flow to the pressure caps is arranged in the output channels on the T-shaped valve body.

The further improvement is that: the filter equipment including set up in be located on the T shape valve body support ring in the output channel, set up in the first filter screen of support ring inner wall, set up in the support ring inner wall is located first filter screen with press the second filter screen between the cap, be formed in first filter screen with be used for letting the medium short-term dwell make between the second filter screen the dwell area of the abundant filter medium of second filter screen.

The further improvement is that: and a bacteria filtering layer for filtering bacteria in the medium is arranged between the second filtering net and the pressing cap on the inner wall of the supporting ring.

The further improvement is that: the bacteria filtering layer is an ultrafiltration membrane filtering core layer.

The further improvement is that: the inner wall of the support ring is positioned between the bacteria filter layer and the pressure cap, and a heavy metal filter layer for filtering heavy metal in the medium is arranged between the bacteria filter layer and the pressure cap.

The further improvement is that: the heavy metal filter layer is a zeolite filter layer.

The further improvement is that: the matching surface of the valve core and the T-shaped valve body is a conical surface, a plane or a hemispherical surface.

The further improvement is that: and a sealing ring is arranged on the matching surface.

The further improvement is that: the pressure cap is an adjustable pressure cap used for fine adjustment of medium flow, and the adjustable pressure cap is provided with an external thread matched with the internal thread of the output channel; the support ring has external threads that mate with the internal threads of the output channel.

The further improvement is that: the retention zone is an elliptical retention zone.

After the technical scheme is adopted, the utility model discloses beneficial effect does: the filtering device arranged in the output channel on the T-shaped valve body fully filters the medium before the medium flows to the pressure cap, the self-operated exhaust balance valve cannot be damaged after long-term use, and the use of the self-operated exhaust balance valve can be met.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a schematic diagram of a prior art configuration;

fig. 2 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

Referring to fig. 2, the technical solution adopted by the present embodiment is:

the self-operated exhaust balance valve comprises a T-shaped valve body 20 with three channels, wherein the three channels are respectively an exhaust channel 21 and two output channels 22, a valve core 23 is transversely arranged in the center of an inner cavity of the T-shaped valve body 20, the middle part of the valve core 23 is provided with a flange part, matching surfaces matched with the inner cavity wall of the T-shaped valve body 20 are arranged on two side sides of the flange part, press caps 24 are respectively arranged in the two output channels 22 of the T-shaped valve body 20, the two press caps 24 respectively press two transverse end surfaces of the valve core 23 through pressure springs 25 to fix the position of the valve core 23, and a filtering device for fully filtering media before the media flow to the press caps 24 is arranged in the output channels 22 on the T-shaped valve body 20. The filtering device comprises a supporting ring 26 arranged on the T-shaped valve body 20 and positioned in the output channel 22, a first filter screen 27 arranged on the inner wall of the supporting ring 26, a second filter screen 28 arranged on the inner wall of the supporting ring 26 and positioned between the first filter screen 27 and the pressing cap 24, and a stopping area 29 formed between the first filter screen 27 and the second filter screen 28 and used for enabling a medium to stop for a short time so that the second filter screen 28 can fully filter the medium. A bacteria filtering layer 30 for filtering bacteria in the medium is arranged on the inner wall of the supporting ring 26 between the second filter screen 28 and the pressing cap 24. Can meet the filtration requirement of the medium. The bacteria filter layer 30 is an ultrafiltration membrane filter layer. And a heavy metal filtering layer 31 for filtering heavy metal in the medium is arranged on the inner wall of the supporting ring 26 between the bacteria filtering layer 30 and the pressing cap 24. Can meet the filtering requirement of the medium. The heavy metal filter layer 31 is a zeolite filter layer. Zeolite is an alkaline earth metal aluminosilicate mineral with a framework structure, has the characteristics of large surface area, good adsorption performance, strong ion exchange capacity, stable chemical performance and the like, and filters heavy metals in a medium. The matching surface of the valve core 23 and the T-shaped valve body 20 is a conical surface, a plane surface or a hemispherical surface. A sealing ring 32 is arranged on the matching surface. The pressure cap 24 is an adjustable pressure cap for fine adjustment of the medium flow, and the adjustable pressure cap has an external thread matched with the internal thread of the output channel 22; the support ring 26 has an external thread which cooperates with an internal thread of the outlet channel 22. The dwell zone 29 is an elliptical dwell zone.

The utility model discloses a theory of operation: before the medium flows from the output channel 22 to the pressing cap 24, the medium is filtered by the first filter screen 27 and then flows to the staying area 29, the staying area 29 allows the medium to stay for a short time, so that the second filter screen 28 filters the medium sufficiently, the bacteria in the medium are filtered by the bacteria filtering layer 30, and the heavy metal in the medium is filtered by the heavy metal filtering layer 31.

The filtering device arranged in the output channel 22 on the T-shaped valve body 20 fully filters the medium before the medium flows to the pressure cap 24, so that the self-operated exhaust balance valve cannot be damaged after long-term use, and the use of the self-operated exhaust balance valve can be met.

The utility model discloses what protect is the structure of product, and the model of each component is not the content of the utility model protection, also is the well-known technique, as long as can realize on the market the utility model discloses the component of above-mentioned function all can regard as a selection to use. Therefore, the parameters such as the model of the component are not described in detail in the present invention. The utility model discloses a contribution lies in combining together each component science.

Having shown and described the basic principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims and their equivalents. The details of the present invention are well known to those skilled in the art.

Claims

1. Formula of relying on oneself exhaust balance valve, including the T shape valve body that has three passageway, three passageway is an exhaust passage and two output channel respectively, the inner chamber center of T shape valve body violently is equipped with the case, the middle part of case is flange portion, and the both sides of flange portion are equipped with the fitting surface with cavity wall matched with in the T shape valve body, be equipped with respectively in two output channel of T shape valve body and press the cap, two press the cap to withstand the position of two cross end faces of case with fixed valve core, its characterized in that through the pressure spring respectively: and a filtering device for fully filtering the medium before the medium flows to the pressure cap is arranged in the output channel on the T-shaped valve body.

2. The self-operated exhaust balance valve of claim 1, wherein: the filter equipment including set up in be located on the T-shaped valve body support ring in the output channel, set up in the first filter screen of support ring inner wall, set up in the support ring inner wall is located first filter screen with press the second filter screen between the cap, form in first filter screen with be used for letting the medium short-term stop between the second filter screen makes the dwell area of the abundant filter medium of second filter screen.

3. The self-operated exhaust balance valve of claim 2, wherein: the support ring inner wall be located the second filter screen with it is provided with the bacterium filter layer that is arranged in carrying out the filtration to bacterium in the medium to press between the cap.

4. The self-operated exhaust balance valve according to claim 3, wherein: the bacteria filtering layer is an ultrafiltration membrane filtering core layer.

5. The self-operated exhaust balance valve of claim 3, wherein: the inner wall of the support ring is positioned between the bacteria filter layer and the pressure cap, and a heavy metal filter layer for filtering heavy metal in the medium is arranged between the bacteria filter layer and the pressure cap.

6. The self-operated exhaust balance valve of claim 5, wherein: the heavy metal filter layer is a zeolite filter layer.

7. The self-operated exhaust balance valve of claim 1, wherein: the matching surface of the valve core and the T-shaped valve body is a conical surface, a plane or a hemispherical surface.

8. The self-operated exhaust balance valve of claim 7, wherein: and a sealing ring is arranged on the matching surface.

9. The self-operated exhaust balance valve of claim 2, wherein: the pressure cap is an adjustable pressure cap used for fine adjustment of medium flow, and the adjustable pressure cap is provided with an external thread matched with the internal thread of the output channel; the support ring has external threads that mate with the internal threads of the output channel.

10. The self-operated exhaust balance valve of claim 2, wherein: the residence zone is an elliptical residence zone.