CN215487678U

CN215487678U - High-reliability dosing valve

Info

Publication number: CN215487678U
Application number: CN202121850536.4U
Authority: CN
Inventors: 韩少飞
Original assignee: Han Shaofei
Current assignee: Han Shaofei
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-01-11
Anticipated expiration: 2031-08-10

Abstract

The utility model provides a high reliability adds medicine valve, includes the valve body, opens in the valve body and is equipped with the cavity, and valve body fixedly connected with feed liquor connects and goes out the liquid and connect, and feed liquor connects and is linked together with the cavity, the removal is provided with the case in the cavity, and the case removes the in-process and makes it connects and the cavity communicates each other or breaks off each other to go out the liquid, fixedly connected with elastic diaphragm between the inner wall of case and cavity, and feed liquor connects and goes out one side that the liquid connects all to be located elastic diaphragm. The utility model provides a dosing valve with high reliability, better sealing performance and longer service life.

Description

High-reliability dosing valve

Technical Field

The utility model relates to the field of valves, in particular to a high-reliability dosing valve.

Background

Flotation is one of the most important mineral separation methods, and is widely used for separating mineral raw materials such as rare metals, precious metals, ferrous metals, non-metals such as coal and the like. The addition of the flotation reagent is an important link in the flotation production process, and the quality and the benefit of the product are directly influenced by the addition amount and the accuracy. In the prior art, a magnetic valve is mainly used for controlling a flotation reagent. Due to the great corrosiveness of the flotation reagent, the traditional electromagnetic valve is quickly corroded and blocked by the reagent to be damaged, and particularly, the main reasons comprise the following aspects: 1. the traditional electromagnetic valve is exposed in corrosive gas of a medicament for a long time and is easy to rust, age and damage; 2. the traditional electromagnetic valve needs to be frequently switched on and off for a long time, and a coil of the electromagnetic valve is easy to generate heat and damage; 3. according to the traditional electromagnetic valve, as the O-shaped ring is adopted for sealing, the O-shaped ring is opened and closed once every minute in the process of ore dressing and chemical adding, the O-shaped ring is easy to leak chemicals due to high-frequency abrasion, and once the chemicals leak, the electromagnetic valve cannot work normally, so that the problem of inaccurate chemical adding is caused; 4. add medicine solenoid valve export and block up easily, the impurity of medicament the inside, perhaps shut down and overhaul the back export output calcified slag and all block up the export very easily, lead to the solenoid valve to close smoothly, and then lead to the electro-magnet coil to ablate.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects in the prior art, the utility model provides the dosing valve with high reliability, better sealing performance and longer service life.

In order to achieve the purpose, the utility model adopts the specific scheme that: the utility model provides a high reliability adds medicine valve, includes the valve body, opens in the valve body and is equipped with the cavity, and valve body fixedly connected with feed liquor connects and goes out the liquid and connect, and feed liquor connects and is linked together with the cavity, the removal is provided with the case in the cavity, and the case removes the in-process and makes it connects and the cavity communicates each other or breaks off each other to go out the liquid, fixedly connected with elastic diaphragm between the inner wall of case and cavity, and feed liquor connects and goes out one side that the liquid connects all to be located elastic diaphragm.

As a further optimization of the corrosion-resistant solenoid valve: the valve body comprises an upper end cover and a lower end cover, the upper end cover and the lower end cover are fixedly connected through a plurality of mounting bolts, the upper end cover and the lower end cover enclose the cavity, and the liquid inlet connector and the liquid outlet connector are fixedly connected with the lower end cover.

As a further optimization of the corrosion-resistant solenoid valve: the upper end cover is fixedly connected with an air cylinder, and a piston rod of the air cylinder extends into the cavity and then is connected with the valve core through a universal connector.

As a further optimization of the corrosion-resistant solenoid valve: universal joint includes gland, connector and tray, and wherein the connector is hemispherical to the plane of connector through first connecting screw with the piston rod fixed connection of cylinder, first connecting screw pass the gland, the tray through the second connecting screw with case fixed connection, gland and tray enclose to close out the appearance chamber that is used for holding the connector.

As a further optimization of the corrosion-resistant solenoid valve: the cylinder electric connection has the feedback to connect.

As a further optimization of the corrosion-resistant solenoid valve: the elastic diaphragm is bent to form a first protruding portion facing the lower end cover, and the first protruding portion extends in the circumferential direction of the valve core.

As a further optimization of the corrosion-resistant solenoid valve: the elastic diaphragm is bent to form a second boss facing the lower end cover, the second boss extends along the circumferential direction of the valve core and is located on the outer side of the first boss, the upper end cover is fixedly connected with a compression ring, the compression ring abuts against the inner side of the second boss, and an annular groove used for accommodating the second boss is formed in the lower end cover.

As a further optimization of the corrosion-resistant solenoid valve: the valve core is fixedly connected with a pressure plate, and the pressure plate is positioned on the other side of the elastic membrane.

As a further optimization of the corrosion-resistant solenoid valve: the cavity is communicated with a conical outlet, the small end of the outlet is communicated with the liquid outlet joint, the valve core is integrally connected with a conical part, and the small end of the conical part faces the outlet.

Has the advantages that: the utility model has better sealing performance and longer service life.

Drawings

FIG. 1 is a perspective view of the overall construction of the present invention;

FIG. 2 is a front view of the overall structure of the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

fig. 4 is a schematic view of the structure of the elastic diaphragm.

Description of the drawings: 1-liquid inlet joint, 2-upper end cover, 3-lower end cover, 4-liquid outlet joint, 5-mounting bolt, 6-feedback joint, 7-air cylinder, 8-first connecting screw rod, 9-connector, 10-gland, 11-tray, 12-pressure plate, 13-elastic membrane, 14-second connecting screw rod, 15-valve core, 16-conical part, 17-outlet, 18-pressing ring, 19-annular groove, 20-first convex part and 21-second convex part.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, a high-reliability dosing valve includes a valve body, a cavity is opened in the valve body, a liquid inlet connector 1 and a liquid outlet connector 4 are fixedly connected to the valve body, the liquid inlet connector 1 is communicated with the cavity, a valve core 15 is movably disposed in the cavity, the liquid outlet connector 4 is mutually communicated with or disconnected from the cavity in the moving process of the valve core 15, an elastic membrane 13 is fixedly connected between the valve core 15 and the inner wall of the cavity, and the liquid inlet connector 1 and the liquid outlet connector 4 are both located on one side of the elastic membrane 13.

When in use, the liquid inlet joint 1 is communicated with a fluid supply pipeline, and the liquid outlet joint 4 is communicated with a fluid output pipeline. When the valve core 15 moves to enable the liquid outlet joint 4 to be communicated with the cavity, the valve is opened, fluid is output through the liquid inlet joint 1, the cavity and the liquid outlet joint 4 in sequence, and when the valve core 15 moves to enable the liquid outlet joint 4 to be disconnected with the cavity, the valve is closed, and the fluid is cut off. Elastic diaphragm 13 plays sealed effect, and the in-process elastic diaphragm 13 that the valve opened only can take place deformation and can not produce the displacement along with case 15's removal, consequently all can adopt fixed connection's mode between elastic diaphragm 13 and the inner wall of case 15 and cavity, and then can effectively eliminate the clearance, has promoted sealing performance, and elastic diaphragm 13 can not the looks mutual friction with the cavity inner wall, can effectively avoid elastic diaphragm 13 because the friction is impaired, elastic diaphragm 13's life has been prolonged. In addition, during the closing process of the valve, the originally deformed elastic membrane 13 is restored and generates thrust to the fluid, so that the fluid in the liquid outlet joint 4 is sprayed out at an accelerated speed, and the liquid outlet joint 4 is prevented from being blocked by impurities contained in the fluid.

The utility model has better sealing performance and longer service life.

The specific structure of valve body does: the valve body includes upper end cover 2 and lower extreme cover 3, and upper end cover 2 and lower extreme cover 3 are through 5 fixed connection of a plurality of construction bolts, and upper end cover 2 and lower extreme cover 3 enclose and close out the cavity, and liquid inlet joint 1 and play liquid joint 4 all with lower extreme cover 3 fixed connection. The upper end cover 2 is provided with a driver for driving the valve core 15 to move.

In the utility model, the driver is set as a cylinder, the cylinder is fixedly arranged on the upper end cover 2, a piston rod of the cylinder 7 extends into the cavity and then is connected with the valve core 15 through a universal connector, and the piston rod of the cylinder 7 is positioned on the other side of the elastic diaphragm 13. Separate the piston rod of cylinder 7 with case 15 through elastic diaphragm 13 to elastic diaphragm 13 and the equal fixed connection of inner wall of case 15 and cavity, consequently can effectively avoid impurity in the fluid to invade around the piston rod of cylinder 7, promoted the protection effect to cylinder 7, can avoid impurity to pile up and cause cylinder 7 card to die, guarantee that the valve can long-term steady operation.

The specific structure of universal connector does: universal joint includes gland 10, connector 9 and tray 11, and wherein connector 9 is hemispherical to the piston rod fixed connection of first connecting screw 8 and cylinder 7 is passed through to the plane of connector 9, and first connecting screw 8 passes gland 10, and tray 11 passes through second connecting screw 14 and case 15 fixed connection, and gland 10 and tray 11 enclose to close out the appearance chamber that is used for holding connector 9, and gland 10 can adopt threaded connection with tray 11. And a piston rod of the air cylinder 7 and the valve core 15 are connected by adopting a universal connector, so that the installation is more convenient.

In order to master the real-time dynamic state of the air cylinder 7 and timely know whether the valve acts according to the control instruction, the air cylinder 7 is electrically connected with a feedback connector 6. The air cylinder 7 can be connected with the control system through the feedback joint 6, the air cylinder 7 can be self-checked in the operation process, and when a fault occurs, a fault warning is sent to the control system through the feedback joint 6.

In order to improve the deformation performance of the elastic diaphragm 13 and further prolong the service life of the elastic diaphragm 13, the elastic diaphragm 13 is bent to form a first protruding portion 20 facing the lower end cover 3, and the first protruding portion 20 extends along the circumferential direction of the valve core 15.

The specific arrangement of the elastic membrane 13 is as follows: the elastic diaphragm 13 is bent to form a second boss 21 facing the lower end cover 3, the second boss 21 extends along the circumferential direction of the valve core 15, the second boss 21 is located on the outer side of the first boss 20, the upper end cover 2 is fixedly connected with a compression ring 18, the compression ring 18 abuts against the inner side of the second boss 21, and an annular groove 19 used for accommodating the second boss 21 is formed in the lower end cover 3. The cooperation of clamp ring 18 and ring channel 19 can carry on spacingly to second bellying 21, and then the position of fixed elastic diaphragm 13 avoids elastic diaphragm 13 lateral deviation, simultaneously, utilizes upper end cap 2 and lower end cap 3 directly to compress tightly elastic diaphragm 13, and it is more convenient to install to need not to increase other connection structure between elastic diaphragm 13 and cavity inner wall, further guaranteed elastic diaphragm 13's sealing performance.

In order to enable the elastic diaphragm 13 to deform uniformly and avoid fatigue caused by local deformation, the valve core 15 is fixedly connected with a pressure plate 12, and the pressure plate 12 is positioned on the other side of the elastic diaphragm 13.

In order to ensure that the liquid outlet joint 4 can be completely closed so as to cut off the fluid, the cavity is communicated with a conical outlet 17, the small end of the outlet 17 is communicated with the liquid outlet joint 4, the valve core 15 is integrally connected with a conical part 16, and the small end of the conical part 16 faces the outlet 17.

The utility model is particularly suitable for conveying equipment of flotation reagents, and the cylinder 7 can be effectively prevented from being corroded by the flotation reagents due to the strong sealing performance of the utility model. In this embodiment, the upper end cover 2 and the lower end cover 3 of valve body all adopt the PP material, and elastic diaphragm 13 adopts the Teflon material to promote corrosion resisting property.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a high reliability adds medicine valve, includes the valve body, has seted up the cavity in the valve body, and valve body fixedly connected with liquid inlet joint (1) and play liquid joint (4), and liquid inlet joint (1) is linked together its characterized in that with the cavity: the liquid inlet connector is characterized in that a valve core (15) is movably arranged in the cavity, the liquid outlet connector (4) and the cavity are communicated or disconnected with each other in the moving process of the valve core (15), an elastic membrane (13) is fixedly connected between the valve core (15) and the inner wall of the cavity, and the liquid inlet connector (1) and the liquid outlet connector (4) are both located on one side of the elastic membrane (13).

2. The high reliability medicated valve of claim 1, wherein: the valve body comprises an upper end cover (2) and a lower end cover (3), the upper end cover (2) and the lower end cover (3) are fixedly connected through a plurality of mounting bolts (5), the upper end cover (2) and the lower end cover (3) enclose the cavity, and the liquid inlet connector (1) and the liquid outlet connector (4) are fixedly connected with the lower end cover (3).

3. The high reliability medicated valve of claim 2, wherein: the upper end cover (2) is fixedly connected with an air cylinder (7), and a piston rod of the air cylinder (7) extends into the cavity and then is connected with the valve core (15) through a universal connector.

4. A high reliability medicated valve as in claim 3 wherein: universal joint includes gland (10), connector (9) and tray (11), and wherein connector (9) are hemispherical to the plane of connector (9) through first connecting screw (8) with the piston rod fixed connection of cylinder (7), first connecting screw (8) pass gland (10), tray (11) through second connecting screw (14) with case (15) fixed connection, gland (10) and tray (11) enclose to close out the appearance chamber that is used for holding connector (9).

5. A high reliability medicated valve as in claim 3 wherein: the air cylinder (7) is electrically connected with a feedback joint (6).

6. The high reliability medicated valve of claim 2, wherein: the elastic membrane (13) is bent to form a first bulge (20) facing the lower end cover (3), and the first bulge (20) extends along the circumferential direction of the valve core (15).

7. The high reliability medicated valve of claim 6, wherein: the elastic diaphragm (13) is bent to form a second boss (21) facing the lower end cover (3), the second boss (21) extends along the circumferential direction of the valve core (15), the second boss (21) is located on the outer side of the first boss (20), the upper end cover (2) is fixedly connected with a compression ring (18), the compression ring (18) abuts against the inner side of the second boss (21), and an annular groove (19) used for accommodating the second boss (21) is formed in the lower end cover (3).

8. The high reliability medicated valve of claim 1, wherein: and the valve core (15) is fixedly connected with a pressure plate (12), and the pressure plate (12) is positioned on the other side of the elastic membrane (13).

9. The high reliability medicated valve of claim 1, wherein: the cavity is communicated with a conical outlet (17), the small end of the outlet (17) is communicated with the liquid outlet joint (4), the valve core (15) is integrally connected with a conical part (16), and the small end of the conical part (16) faces the outlet (17).