CN218670851U

CN218670851U - Pneumatic hand-operated slurry valve

Info

Publication number: CN218670851U
Application number: CN202223073482.2U
Authority: CN
Inventors: 刘联园; 江南
Original assignee: Zigong First High And Middle Pressure Valve Co ltd
Current assignee: Zigong First High And Middle Pressure Valve Co ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-03-21
Anticipated expiration: 2032-11-18

Abstract

The application relates to the technical field of slurry valves and discloses a pneumatic manual slurry valve which is characterized by comprising a valve body, a flashboard, a sealing ring and an actuating mechanism; the valve body is provided with a flow passage for medium to pass through; the gate plate is arranged in the valve body and used for opening and closing the flow passage; the sealing ring is embedded on the inner wall of the flow passage corresponding to the position of the flashboard, and the outer surface of the sealing ring is flush with the inner wall surface of the flow passage; the actuating mechanism is arranged on the valve body and is used for driving the flashboard to move up and down; the actuating mechanism comprises a pneumatic actuator and a hand wheel auxiliary mechanism, the pneumatic actuator is used for automatically driving the flashboard to move up and down, and the hand wheel auxiliary mechanism is used for manually driving the flashboard to move up and down. The application solves the problems that the driving mode of the existing slurry valve is single, and the valve cannot act when the actuator is influenced by medium deposition and breaks down.

Description

Pneumatic and manual slurry valve

Technical Field

The application relates to the technical field of slurry valves, in particular to a pneumatic manual slurry valve.

Background

Some process fluids in the fields of mines, chemical engineering and the like are slurry multiphase media, and slurry valves used for process pipelines at the present stage are mostly wedge-type single gate valves or knife-shaped gate valves, and the driving mode is pneumatic or hydraulic and the like. However, in the actual use process, the wedge-type single gate valve is limited by the structure, liquid accumulation and slag bonding are easy to generate in the body cavity, and after the wedge-type single gate valve is used for a long time, the slag bonding in the body cavity seriously influences the service life of the valve seal, and even the wedge-type single gate valve cannot be opened or closed normally. The knife gate valve has extremely poor sealing performance and is only suitable for high-concentration slurry medium pipelines.

Therefore, for the existing slurry valve, the problem of medium deposition in a body cavity cannot be solved due to the valve body structure, the slurry medium cannot avoid solid deposition, the medium deposition can cause the moment increase of the valve, and the failure of a hydraulic or pneumatic actuating mechanism is caused. And because the slurry valve applied in the prior stage has a single driving mode, when a hydraulic or pneumatic actuating mechanism fails, the valve cannot act, and a stop valve is additionally arranged to serve as a safety guarantee, so that the cost investment of product equipment is increased, and the material waste is caused.

Disclosure of Invention

Based on above technical problem, the application provides a manual thick liquid valve of pneumatic belt, has solved current thick liquid valve drive mode singleness, receives the medium deposit influence when breaking down at actuating mechanism, the unable problem of acting of valve.

In order to solve the technical problems, the technical scheme adopted by the application is as follows:

a pneumatic manual slurry valve is characterized by comprising a valve body, a flashboard, a sealing ring and an actuating mechanism; the valve body is provided with a flow passage for medium to pass through; the gate plate is arranged in the valve body and used for opening and closing the flow passage; the sealing ring is embedded on the inner wall of the flow passage corresponding to the position of the flashboard, and the outer surface of the sealing ring is flush with the inner wall surface of the flow passage; the actuating mechanism is arranged on the valve body and is used for driving the flashboard to move up and down; the actuating mechanism comprises a pneumatic actuator and a hand wheel auxiliary mechanism, the pneumatic actuator is used for automatically driving the flashboard to move up and down, and the hand wheel auxiliary mechanism is used for manually driving the flashboard to move up and down.

Further, the pneumatic actuator comprises an air cylinder, a filtering pressure reducing valve and an electromagnetic valve; the movable end of the cylinder is connected with the flashboard and is used for driving the flashboard to move up and down; the air inlet of the filtering and reducing valve is connected with an air source, and the air outlet of the filtering and reducing valve is connected with the air cylinder; the electromagnetic valve is arranged on an air pipe connecting the air cylinder and the filtering and pressure reducing valve.

Further, the cylinder is connected with the flashboard through a push rod.

Furthermore, the end of the push rod is provided with a chuck, and the flashboard is inserted into the chuck for fixing.

Further, the actuating mechanism is arranged on the valve body through the connecting frame.

Furthermore, a filling port is also formed in the extending position of the flashboard of the valve body, and sealing filler is filled in the filling port; the filling opening is sealed by a gland, and a channel for the movement of the flashboard is arranged on the gland.

Further, the actuating mechanism is fixedly arranged on the mounting frame.

Furthermore, the valve body adopts a butt-clamp type short structure.

Furthermore, the sealing ring is U-shaped.

Furthermore, the sealing ring is made of wear-resistant fluororubber.

Compared with the prior art, the beneficial effects of this application are:

this application has pneumatics and two kinds of drive modes manual through setting up actuating mechanism, can utilize hand wheel complementary unit manual drive valve switching under the condition of air supply trouble, inefficacy to improve the reliability of thick liquid valve, make it can deal with more complicated operational environment.

In addition, through set up the sealing washer that flushes with the runner inner wall in the runner for the thick liquid valve runner has not had the sedimentation space of medium completely in, has stopped hydrops and the slagging scorification problem that traditional thick liquid valve exists, and has improved sealed vice life and reliability.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. Wherein:

FIG. 1 is a schematic diagram of the external structure of a slurry valve for preventing medium deposition.

Fig. 2 is a schematic view of the internal structure of a slurry valve for preventing deposition of a medium.

The device comprises a pneumatic actuator 1, a cylinder 101, an air pipe 102, a handwheel auxiliary mechanism 103, a filtering pressure reducing valve 104, an electromagnetic valve 105, a mounting frame 2, a connecting frame 3, a push rod 4, a valve body 5, a flow channel 6, a chuck 7, a gland 8, a sealing filler 9, a flashboard 10 and a sealing ring 11.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the application without any inventive step, are within the scope of protection of the application.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. As used in this application, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Fig. 1-2 are schematic structural views of slurry valves for preventing medium deposition according to some embodiments of the present application, and the slurry valves for preventing medium deposition according to the present application will be described below with reference to fig. 1-2. It should be noted that fig. 1-2 are exemplary only and are not intended to be limiting as to the specific shape and configuration of the slurry valve to prevent media deposition.

Referring to fig. 1-2, in some embodiments, a pneumatic hand-operated slurry valve is characterized by comprising a valve body 5, a gate plate 10, a sealing ring 11 and an actuating mechanism; a flow passage 6 for medium to pass through is arranged on the valve body 5; the flashboard 10 is arranged in the valve body 5 and is used for opening and closing the flow passage 6; the sealing ring 11 is embedded on the inner wall of the flow channel 6 corresponding to the position of the flashboard 10, and the outer surface of the sealing ring 11 is flush with the inner wall surface of the flow channel 6; the actuating mechanism is arranged on the valve body 5 and is used for driving the flashboard 10 to move up and down; the actuating mechanism comprises a pneumatic actuator 1 and a hand wheel auxiliary mechanism 103, wherein the pneumatic actuator 1 is used for automatically driving the gate plate 10 to move up and down, and the hand wheel auxiliary mechanism 103 is used for manually driving the gate plate 10 to move up and down.

In the embodiment, the slurry valve applied at the present stage is single in driving mode, when an air source or a liquid source fails, the valve cannot act, a stop valve needs to be additionally arranged to serve as a safety guarantee, the investment of product equipment is increased, and material waste is caused. In order to ensure the use reliability of the valve, the valve can still be opened and closed under the condition of air source failure, and the switchable hand wheel auxiliary mechanism 103 is added under the premise of air source driving so as to perform the interchange of two operations under different working conditions and meet the requirements of more complex processes and environments.

The actuating mechanism is provided with two driving modes of pneumatic driving and manual driving, so that the valve can be manually driven to open and close by the hand wheel auxiliary mechanism 103 under the conditions of air source failure and invalidation, the reliability of the slurry valve is improved, and the slurry valve can cope with more complex working environment. The pneumatic actuator 1 is used as a main actuating mechanism of the slurry valve, the opening and closing of the slurry valve can be controlled remotely and automatically, and the slurry valve has the advantage of convenience in operation.

Specifically, the handwheel assist mechanism 103 may be a worm gear screw lifting mechanism or a gear screw lifting mechanism.

Simultaneously, for solving the hydrops and the slagging scorification problem that traditional thick liquid valve product body intracavity caused because of the medium deposit, improve the leakproofness and the reliability of valve simultaneously, the thick liquid valve of this embodiment is through runner 6 installation sealing washer 11 at valve body 5 to make the sealing washer 11 that installs flush with runner 6, thereby make the runner 6 structure of thick liquid valve not have the precipitation space of medium completely, stopped hydrops and slagging scorification problem that traditional thick liquid valve exists. Meanwhile, the design that the sealing ring 11 is flush with the inner wall of the flow channel 6 can reduce flow resistance, effectively reduce the medium scouring suffered by the sealing ring 11 when in use, and improve the reliability and the service life of the sealing ring.

Preferably, the actuator is mounted above the valve body 5 by means of a connecting frame 3.

The connecting frame 3 can conveniently connect the valve body 5 with the pneumatic actuator 1, and the valve body and the pneumatic actuator can flow out of a space enough for the push rod 4 to move.

Specifically, the connecting frame 3 is fixedly connected with the actuating mechanism and the valve body 5 through bolts.

Preferably, the valve body 5 is further provided with a filling opening at the extending position of the gate plate 10, and the filling opening is filled with a sealing filler 9; the filling opening is sealed by a gland 8, and a channel for the movement of the flashboard 10 is arranged on the gland 8.

Wherein, through setting up sealed packing 9 to strengthen the installation leakproofness between flashboard 10 and valve body 5, avoid the medium leakage.

Specifically, the gland 8 is fixedly mounted on the valve body 5 by bolts.

Preferably, the sealing ring 11 is U-shaped.

Wherein, according to the lifting movement of the gate plate 10, the sealing contact surface between the gate plate 10 and the inner wall of the flow passage 6 is U-shaped. Therefore, the seal ring 11 is also U-shaped.

Specifically, for the installation of the seal ring 11, a U-shaped groove needs to be machined in the flow passage 6, and then the seal ring 11 is embedded in the U-shaped groove.

Preferably, the material of the seal ring 11 is wear-resistant fluororubber.

The fluororubber is a synthetic polymer elastomer having fluorine atoms in the carbon atoms of the main chain or side chain. The introduction of fluorine atoms endows the rubber with excellent heat resistance, oxidation resistance, oil resistance, corrosion resistance and atmospheric aging resistance. By using the fluororubber as the material of the seal ring 11, the reliability of the seal and the long life can be ensured. Meanwhile, the sealing ring 11 made of the fluororubber material is accurately positioned by an actuating mechanism through design analysis, and the sealing performance of the slurry valve is excellent and zero leakage can be achieved due to proper sealing specific pressure.

Preferably, the valve body 5 is of a wafer-type short structure.

The flow channel 6 of the valve body 5 with the wafer type short structure is consistent with the connected pipeline, and the flow resistance is approximately equal to the pipeline with the same length in the opening state of the valve, so that the valve has the advantage of low flow resistance. Meanwhile, the valve body 5 with the butt-clamp type short structure can also reduce the preparation materials of the slurry valve, improve the manufacturing process, reduce the material investment and scientifically and reasonably increase the quality and reduce the consumption.

Referring to fig. 2, in some embodiments, the pneumatic actuator 1 includes a cylinder 101, a filter and relief valve 104, and a solenoid valve 105; the movable end of the cylinder 101 is connected with the gate plate 10 and is used for driving the gate plate 10 to move up and down; an air inlet of the filtering and pressure reducing valve 104 is connected with an air source, and an air outlet of the filtering and pressure reducing valve 104 is connected with the air cylinder 101; the solenoid valve 105 is provided on the air pipe 102 connecting the cylinder 101 and the filtering and pressure reducing valve 104.

In this embodiment, the operation of the cylinder 101 is controlled by the solenoid valve 105, the solenoid valve 105 opens the air supply port, and the air in the air supply is filtered by the filtering and reducing valve 104 to remove impurities and moisture and then is input into the cylinder 101. The filtering pressure reducing valve 104 can also automatically adjust the air pressure, so that the pressure is stable and stable.

Preferably, the cylinder 101 is connected to the shutter 10 by a push rod 4.

Preferably, the end of the push rod 4 is provided with a chuck 7, and the shutter plate 10 is inserted into the chuck 7 and fixed.

Wherein, the flashboard 10 is fixed by the chuck 7, and the fixing structure is firm and reliable.

Specifically, the shutter 10 is inserted into the collet 7 and then fixed by bolts.

Preferably, the actuator is fixed to the mounting frame 2.

The mounting frame 2 can conveniently integrate and mount related components of the pneumatic actuator 1, so that the pneumatic actuator becomes an integral structure, and the mounting frame is convenient to mount and maintain.

The above is an embodiment of the present application. The embodiments and specific parameters in the embodiments are only used for clearly illustrating the verification process of the application and are not used for limiting the patent protection scope of the application, which is defined by the claims, and all the equivalent structural changes made by using the contents of the specification and the drawings of the application should be included in the protection scope of the application.

Claims

1. A pneumatically actuated manual slurry valve comprising:

the valve body is provided with a flow passage for medium to pass through;

the gate plate is arranged in the valve body and used for opening and closing the flow passage;

the sealing ring is embedded on the inner wall of the flow channel corresponding to the position of the flashboard, and the outer surface of the sealing ring is flush with the inner wall surface of the flow channel;

the actuating mechanism is arranged on the valve body and is used for driving the flashboard to move up and down; the actuating mechanism comprises a pneumatic actuator and a hand wheel auxiliary mechanism, the pneumatic actuator is used for automatically driving the flashboard to move up and down, and the hand wheel auxiliary mechanism is used for manually driving the flashboard to move up and down.

2. A pneumatically powered manual slurry valve as claimed in claim 1 wherein said pneumatic actuator comprises:

the movable end of the air cylinder is connected with the flashboard and is used for driving the flashboard to move up and down;

the air inlet of the filtering and pressure reducing valve is connected with an air source, and the air outlet of the filtering and pressure reducing valve is connected with the air cylinder;

and the electromagnetic valve is arranged on an air pipe connecting the air cylinder and the filtering and reducing valve.

3. A pneumatically-actuated manual slurry valve as claimed in claim 2, wherein:

the cylinder is connected with the flashboard through a push rod.

4. A pneumatically-actuated manual slurry valve as claimed in claim 3, wherein:

the end of the push rod is provided with a chuck, and the flashboard is inserted into the chuck for fixing.

5. A pneumatically-actuated manual slurry valve as claimed in claim 1, wherein:

the actuating mechanism is installed on the valve body through a connecting frame.

6. A pneumatically-actuated manual slurry valve as claimed in claim 1, wherein:

the valve body is also provided with a filling port at the extending position of the flashboard, and sealing filler is filled in the filling port; the filling opening is sealed by a gland, and a channel for the movement of the flashboard is arranged on the gland.

7. A pneumatically-actuated manual slurry valve according to any one of claims 1 to 6, wherein:

the actuating mechanism is fixedly arranged on the mounting frame.

8. A pneumatically actuated manual serous valve as claimed in any one of claims 1 to 6, wherein:

the valve body adopts a butt-clamp type short structure.

9. A pneumatically-actuated manual slurry valve according to any one of claims 1 to 6, wherein:

the sealing ring is U-shaped.

10. A pneumatically-actuated manual slurry valve according to any one of claims 1 to 6, wherein:

the sealing ring is made of wear-resistant fluororubber.