CN211693553U - Chemical valve - Google Patents

Abstract

The utility model provides a chemical valve installs in chemical pipeline's play liquid end, and chemical valve includes: the valve body is provided with a first transfusion channel, a baffle which is pivoted in the first transfusion channel, and a positioning device for controlling the pivoting of the baffle; the baffle can pivot relative to the first transfusion channel to conduct or break the first transfusion channel, and a pivot shaft at least one end of the baffle extends out of the valve body; the positioning device comprises a rotating disc fixedly arranged at the extending end of the pivot shaft and a positioning table fixedly arranged on the valve body, a positioning column is slidably inserted on the rotating disc, and an elastic part elastically abutted between the rotating disc and the positioning column is sleeved on the positioning column; and a plurality of positioning grooves which are arranged at intervals are arranged on the positioning table corresponding to the rotating path of the positioning columns, and the positioning columns can be selectively inserted into one of the positioning grooves. The utility model discloses a chemical industry valve compact structure, simple, the installation of being convenient for, and can realize the function of the free pivot of baffle and location fastening.

Description

Chemical valve

Technical Field

The utility model relates to the technical field of valves, in particular to chemical valve.

Background

The chemical valve is a pipeline accessory used for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters of a conveying medium, has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, and can be used for controlling the flow of industrial liquid.

The valve in the prior art generally comprises a valve body, a valve core arranged in the valve body and a valve shaft arranged on the valve body to drive the valve core to rotate, and the valve structure has high precision requirement on processing and relatively complex structure. In the use process of the valve, the impurities in the industrial water precipitate in the pipeline, so that the valve is blocked, the valve is blocked to cause great difficulty in cleaning, and the valve is not beneficial to production and application.

In addition, when the flow rate of the liquid flowing through the valve body is large, the valve core is easy to deflect due to the impact of the liquid, and therefore the control precision of the valve on the liquid flow rate is affected.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a chemical industry valve to can fix a position the valve that the adjustment put in place, and have better result of use.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a chemical industry valve, installs in the play liquid end of chemical pipeline, chemical industry valve includes:

the valve body is internally provided with a first liquid conveying channel, and a liquid inlet of the first liquid conveying channel is communicated with a liquid outlet end of the chemical pipeline so as to convey liquid in the chemical pipeline to a liquid outlet of the first liquid conveying channel;

the baffle is arranged in the first transfusion channel in a pivoting manner, the baffle can pivot relative to the first transfusion channel to conduct or break the first transfusion channel, and a pivoting shaft at least one end of the baffle extends out of the valve body;

the positioning device comprises a rotating disc fixedly arranged at the extending end of the pivot shaft and a positioning table fixedly arranged on the valve body, a positioning column is inserted on the rotating disc in a sliding manner, and an elastic piece which is elastically abutted between the rotating disc and the positioning column is sleeved on the positioning column; and a plurality of positioning grooves which are arranged at intervals are arranged on the positioning table corresponding to the rotating path of the positioning column, and the positioning column can be selectively inserted into one of the positioning grooves.

Further, a seal ring circumferentially arranged around the baffle is provided on a side surface of the baffle facing the liquid inflow direction, a boss circumferentially arranged around the first liquid supply passage is formed on an inner peripheral surface of the first liquid supply passage corresponding to the seal ring, and the seal ring is sandwiched between the baffle and the boss to break and conduct the first liquid supply passage.

Further, the elastic member is a spring.

Furthermore, a filter plate is arranged in the first liquid conveying channel and close to the liquid outlet of the first liquid conveying channel.

Further, the filter plate is obliquely arranged in the first transfusion channel.

Furthermore, a second transfusion channel communicated with the first transfusion channel is arranged at the downstream of the baffle, and the second transfusion channel can be communicated with the first transfusion channel or disconnected due to the pivoting of the baffle.

Further, in deviating from of baffle be equipped with the sealing strip that its circumference of ring was arranged on the side that the liquid inflow direction set up, corresponding to the sealing strip, in the inlet department of second infusion passageway is constructed the arch that its circumference of ring was arranged, and in be equipped with the confession in the arch the embedded groove of sealing strip embedding.

Furthermore, a flow sensor is arranged in the first transfusion channel.

Further, the first liquid conveying channel positioned at the upstream of the baffle is bent.

Further, the baffle is made of corrosion-resistant material.

Compared with the prior art, the utility model discloses following advantage has:

(1) the chemical valve of the utility model can control the flow of the liquid in the first infusion channel conveniently by constructing the pivotable baffle in the first infusion channel; and through inserting the reference column in different constant head tanks, can fix a position the baffle that the pivot target in place, prevent that the baffle from taking place to deflect and influencing the emergence of control accuracy problem because of the impact of liquid. Meanwhile, the positioning device is simple in structure, easy to operate and good in practicability.

(2) The side surface of the baffle is provided with a sealing gasket, and the inner circumferential surface of the first liquid conveying channel is provided with a boss, so that the baffle can form a good sealing effect on the first liquid conveying channel.

(3) The elastic part adopts a spring, so that the cost is simple and the assembly is easy.

(4) The filter plate is arranged in the first liquid conveying channel, so that liquid flowing through the first liquid conveying channel can be filtered, and the cleanliness of the liquid flowing out of the valve body is improved to a certain extent.

(5) The filter plate is obliquely arranged in the first infusion channel, so that the filtering area between the flowing liquid and the filter plate can be increased, and the filtering effect of the filter plate is improved.

(6) By arranging the second infusion channel and controlling the opening and closing of the second channel through the baffle, on one hand, when the baffle breaks the first infusion channel, impurities on the filter plate can be flushed away from the filter plate by flushing water to the liquid outlet of the first infusion channel, and the impurities are discharged out of the valve body through the second infusion channel, so that the impurities are intensively cleaned; on the other hand, the liquid flowing through the valve body is also conveniently divided.

(7) The side surface of the baffle is provided with the sealing gasket, and the inner circumferential surface of the second liquid conveying channel is provided with the lug boss, so that the baffle can form a good sealing effect on the second liquid conveying channel.

(8) The flow sensor is arranged in the first liquid conveying channel, so that the liquid flow passing through the chemical valve can be monitored, and the baffle in the valve body can be conveniently pivoted so as to control the flow passing through the first liquid conveying channel.

(9) The first liquid conveying channel is bent, so that the erosion of liquid flowing through the first liquid conveying channel to the baffle can be reduced, and the service life of the baffle and other connecting parts can be prolonged.

(10) The baffle is made of corrosion-resistant materials, so that the corrosion-resistant effect of the baffle can be enhanced, and the service life of the baffle is prolonged.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a chemical valve according to an embodiment of the present invention when a liquid flows through a first liquid conveying channel;

fig. 2 is a schematic structural view of a chemical valve according to an embodiment of the present invention when a liquid flows through a second liquid conveying channel;

fig. 3 is a schematic structural diagram of a positioning device according to an embodiment of the present invention;

FIG. 4 is a front view of FIG. 3;

fig. 5 is a schematic structural view of the positioning device according to the embodiment of the present invention in the first positioning groove;

fig. 6 is a schematic structural view of the positioning device according to the embodiment of the present invention in a second positioning groove;

fig. 7 is a schematic structural view of the positioning device according to the embodiment of the present invention in a third positioning groove;

description of reference numerals:

1-valve body, 2-baffle, 3-positioning device, 4-filter plate, 5-flow sensor, 6-buffer section;

a-a first infusion channel, B-a second infusion channel;

111-liquid inlet, 121-liquid outlet, 131-boss, 112-projection;

201-pivot axis, 202-sealing gasket, 203-sealing strip;

301-rotating disc, 302-positioning column, 303-elastic piece, 304-limiting table, 305-first positioning groove, 306-second positioning groove, 307-third positioning groove and 308-positioning table.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "inner", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

This embodiment relates to a chemical industry valve, and it is installed at the play liquid end of chemical pipeline for the mobile state of liquid in the control chemical pipeline, as shown in fig. 1 and fig. 3, the utility model discloses a chemical industry valve structure wholly constitutes and includes valve body 1, baffle 2 and positioner 3.

Wherein, valve body 1 is as the bearing substrate of chemical industry valve structure to an installation in the external structure of realization chemical industry valve structure, such as above-mentioned chemical pipeline. The valve body 1 of this embodiment is rectangular tube shape, and its both ends that are located inlet and liquid outlet are the reducing respectively and extend the casting for circular interface to be connected with external pipeline. A first liquid conveying channel a is arranged in the valve body 1, and a liquid inlet 111 of the first liquid conveying channel a is communicated with a liquid outlet end of the chemical pipeline through a flange or other modes so as to convey liquid in the chemical pipeline to a liquid outlet 121 of the first liquid conveying channel a.

As shown in figure 1, the baffle 2 is pivotally arranged in the first liquid conveying channel A, the baffle 2 can pivot relative to the first liquid conveying channel A to conduct or break the first liquid conveying channel, and a pivot shaft 201 at least one end of the baffle 2 extends out of the valve body 1. The baffle 2 in this embodiment is rectangular and made of corrosion-resistant material such as special stainless steel, so that the corrosion-resistant effect of the baffle can be enhanced, and the service life of the baffle can be prolonged.

A pivoting shaft 201 is fixedly connected to one end of the inner wall of the first liquid conveying channel A of the valve body 1 in a welding mode, the pivoting shaft 201 is arranged along the length direction of the baffle 2, and the two ends of the pivoting shaft 201 extend out of the valve body 1 and are used for facilitating installation of a positioning device 3. The extending end of the pivotal shaft 201 is rotated by external force, so that the baffle 2 fixedly connected on the pivotal shaft 201 can rotate freely, and the first transfusion channel A is opened and closed.

As shown in fig. 5 and 7, in order to improve the sealing performance of the baffle 2 to the first infusion channel a, a sealing gasket 202 arranged around the periphery of the baffle 2 is arranged on the side surface of the baffle 2 facing the liquid inflow direction, the sealing gasket 202 is directly adhered to the baffle 2 by gluing, a boss 131 arranged around the periphery of the first infusion channel a is formed on the inner peripheral surface of the first infusion channel a corresponding to the sealing gasket 202, and the sealing gasket 202 can be clamped between the baffle 2 and the boss 131 to ensure the sealing effect between the baffle and the boss when the baffle is closed, so as to break and conduct the first infusion channel a.

It should be noted that the shape of the boss 131 is not fixed in this embodiment, and may be a prism, or the protrusion 112 is formed with a groove shape, so that when the baffle 2 is pivoted to the position of the boss 131, the sealing gasket 202 can be directly attached to the boss 131 to form a seal. The sealing gasket 202 may be an existing rubber sealing gasket 202, or may be a sealing gasket 202 having a special performance based on different applications of the chemical valve structure.

As shown in fig. 3 and 4, the positioning device 3 includes a rotating disc 301 fixed on the extending end of the pivot shaft 201, and a positioning table 308 fixed on the valve body 1, and a positioning column 302 is slidably inserted on the rotating disc 301, and an elastic member 303 elastically abutting between the rotating disc 301 and the positioning column 302 is sleeved on the positioning column 302; a plurality of positioning grooves are formed on the positioning table 308 corresponding to the rotation path of the positioning column 302, and the positioning column 302 is selectively inserted into one of the positioning grooves. Specifically, a limiting table 304 is integrally formed at one end of the positioning column 302 close to the positioning table 308, the limiting table 304 extends along the circumferential direction of the positioning column 302, and the elastic member 303 is directly fixedly connected between the limiting table 304 and the rotating disc 301 to form elastic connection. In this process, the elastic member 303 is constructed with a normal elastic length, and the elastic member 303 is preferably a spring according to practical circumstances.

In order to prevent the liquid in the chemical pipeline from eroding the baffle 2 and the surrounding parts when flowing into the chemical valve, the part A of the first liquid conveying channel positioned at the upstream of the baffle 2 is formed with the buffer section 6 in a bent shape, so that the liquid with a high flow rate enters the valve body 1 and then flows through the buffer section 6 for buffering, and then flows through the baffle 2, thereby reducing the impact of the flowing liquid on the valve body 1 and prolonging the whole service life of the valve body.

In addition, as shown in fig. 1 or fig. 2, in order to collect, recycle and dispose the precipitate and the impurities in the liquid flowing through the chemical valve, a filter plate 4 is fixedly installed in the first liquid conveying channel a near the liquid outlet 121 of the first liquid conveying channel a. Specifically, the filter 4 is directly embedded on the inner wall of the first infusion channel A, and the filter 4 is obliquely arranged relative to the first infusion channel A, so that the liquid area flowing through the filter 4 can be increased, and the filtering efficiency is improved. Of course, in view of the convenience of detecting the flow velocity of the liquid in the valve body 1, the flow sensor 5 can be further installed at one end of the liquid outlet 121 of the first infusion channel a, and the flow sensor 5 can be prevented from being blocked by impurities due to the filtering of the filter plate 4, so that the use effect of the flow sensor 5 is improved. It should be noted that the flow sensor 5 may be a structure in the prior art, and the detailed principle and the connection manner with the first infusion channel a are not described herein again.

In this embodiment, a second infusion channel B is arranged at the position where the baffle 2 is pivoted to communicate with the first infusion channel A and is communicated with the first infusion channel A. The second transfusion channel B and the first transfusion channel A are used for being conducted or disconnected with the same baffle 2, and the pivot shaft 201 is arranged at the intersection position of the first transfusion channel A and the second transfusion channel B, so that the baffle 2 is convenient to control to be opened and closed in the pivoting process. For back-flushing foreign matters such as impurities filtered by the filter plate 4

Specifically, the second infusion path B and the baffle 2 may be sealed with reference to the first infusion path a and the baffle 2, that is, a sealing strip 203 arranged around the periphery of the baffle 2 is arranged on a side of the baffle 2 facing away from the liquid inflow direction, the sealing strip 203 is directly adhered to the baffle 2 by industrial glue, a protrusion 112 arranged around the periphery of the second infusion path B is configured on an inner peripheral surface of the second infusion path B corresponding to the sealing strip 203, and the sealing gasket 202 may be sandwiched between the baffle 2 and the protrusion 112 to break and conduct the second infusion path B. Of course, the seal may be other sealing means such as snap fit.

In consideration of the need to control the opening and closing of the second infusion channel B, in the positioning device 3 of the present embodiment, the positioning table 308 is configured to extend along the circumferential direction of the protruding end of the pivot shaft 201, and the shape of the positioning table 308 is specifically a circular disc, and corresponding to the rotation path of the positioning column 302, three positioning slots are provided for the positioning table 308, specifically, a first positioning slot 305 corresponding to the position of the positioning column 302 when the baffle 2 closes and disconnects the first infusion channel a, a second positioning slot 306 corresponding to the position of the positioning column 302 when the baffle 2 closes and disconnects the second infusion channel B, and a third positioning slot 307 corresponding to the position of the positioning column 302 when the baffle 2 simultaneously connects the first infusion channel a and the second infusion channel B. Of course, the number of the positioning grooves 307 may be changed continuously, so that the baffle 2 is located at different positions to control the diversion of the liquid flowing through the valve body 1 in the chemical pipeline, which is not specifically limited herein.

Still as shown in fig. 5 to 7, in the chemical valve of this embodiment, when the chemical valve works, the liquid in the chemical pipeline first enters the first liquid conveying channel a through the valve body 1, when the filter plate 4 filters and intercepts a large amount of foreign matters, the flow sensor 5 detects that the feedback result of the flow rate signal is weakened, in this case, the limiting table 304 on the positioning column 302 is pulled up, the elastic member 303 is compressed, the positioning column 302 slides upwards relative to the rotating disc 301, and then rotates to the position of the first positioning groove 305 along with the rotating disc 301, the baffle 2 vertically breaks the first liquid conveying channel a, and the sealing gasket 202 is attached to the boss 131 to form a seal with the baffle 2 and the first liquid conveying channel a; then, the limiting table 304 is released, the elastic member 303 is restored, and the positioning post 302 is inserted into the first positioning groove 305; then the liquid outlet 121 is inserted with a water inlet device again, the washing water enters the liquid outlet 121 of the first liquid conveying channel A and is conveyed out of the second liquid conveying channel B through the filter plate 4, and therefore the filtering impurities are taken out of the valve body 1.

When the first infusion channel A needs to be opened, the water inlet device of the liquid outlet 121 is removed, the limiting table 304 on the positioning column 302 is pulled up, the rotating disc 301 is rotated to the position of the third positioning groove 307, the positioning column 302 is inserted into the third positioning groove 307, at the moment, the baffle 2 is transversely placed, the second infusion channel B is disconnected, the sealing strip 203 is attached to the protrusion 112 to seal the baffle 2 and the second infusion channel B, and at the moment, the first infusion channel A is in a communicated state.

When the liquid flow in the first liquid conveying channel A is large and the impact is serious, the flow sensor 5 measures that the feedback result of the flow speed signal is strong, under the condition, the rotating disc 301 is rotated to the position corresponding to the second positioning groove 306, the positioning column 302 is inserted into the second positioning groove 306, at the moment, the baffle 2 is inclined, the first liquid conveying channel A and the second liquid conveying channel B are both in a communicated state, the second liquid conveying channel B can play a role in shunting the first liquid conveying channel A, and the flow pressure of the valve body 1 is reduced.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a chemical industry valve, installs in the play liquid end of chemical pipeline, its characterized in that, chemical industry valve includes:

the valve body (1), a first liquid conveying channel (A) is arranged in the valve body (1), a liquid inlet (111) of the first liquid conveying channel (A) is communicated with a liquid outlet end of the chemical pipeline, so that liquid in the chemical pipeline is conveyed to a liquid outlet (121) of the first liquid conveying channel (A);

the baffle (2) is pivoted in the first transfusion channel (A), the baffle (2) can be pivoted relative to the first transfusion channel (A) to conduct or break the first transfusion channel, and a pivoting shaft at least one end of the baffle (2) extends out of the valve body (1);

the positioning device (3) comprises a rotating disc (301) fixedly arranged at the extending end of the pivot shaft and a positioning table (308) fixedly arranged on the valve body (1), a positioning column (302) is slidably inserted on the rotating disc (301), and an elastic piece (303) elastically abutted between the rotating disc (301) and the positioning column (302) is sleeved on the positioning column (302); a plurality of positioning grooves which are arranged at intervals are arranged on the positioning table (308) corresponding to the rotating path of the positioning columns (302), and the positioning columns (302) can be selectively inserted into one of the positioning grooves.

2. The chemical valve of claim 1, wherein: a sealing gasket (202) which is circumferentially arranged around the baffle plate is arranged on the side surface of the baffle plate (2) facing the liquid inflow direction, a boss (131) which is circumferentially arranged around the first liquid conveying channel is constructed on the inner circumferential surface of the first liquid conveying channel (A) corresponding to the sealing gasket (202), and the sealing gasket (202) can be clamped between the baffle plate (2) and the boss (131) to break and conduct the first liquid conveying channel (A).

3. The chemical valve of claim 1, wherein: the elastic piece (303) is a spring.

4. The chemical valve of claim 1, wherein: a filter plate (4) is arranged in the first liquid conveying channel (A) close to the liquid outlet (121) of the first liquid conveying channel (A).

5. The chemical valve of claim 4, wherein: the filter plate (4) is obliquely arranged in the first liquid conveying channel.

6. The chemical valve of claim 4, wherein: and a second transfusion channel (B) communicated with the first transfusion channel (A) is arranged at the downstream of the baffle (2), and the second transfusion channel (B) can be communicated with the first transfusion channel (A) or disconnected due to the pivoting of the baffle (2).

7. The chemical valve of claim 6, wherein: and a sealing strip (203) which is arranged circumferentially around the baffle plate is arranged on the side surface of the baffle plate (2) deviating from the liquid inflow direction, a protrusion (112) which is arranged circumferentially around the baffle plate is constructed at the liquid inlet (111) of the second liquid conveying channel (B) corresponding to the sealing strip (203), and the sealing strip (203) can be clamped between the baffle plate (2) and the protrusion (112) to break off and conduct the second liquid conveying channel (B).

8. The chemical valve of claim 1, wherein: a flow sensor (5) is arranged on the first transfusion channel (A).

9. The chemical valve of claim 1, wherein: the first liquid conveying channel (A) positioned at the upstream of the baffle (2) is bent.

10. The chemical valve according to any of claims 1-8, wherein: the baffle (2) is made of corrosion-resistant materials.

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