Discharge valve structure device capable of preventing material pollution

Abstract

The utility model belongs to the technical field of discharging valves of crystallizing tanks, and discloses a discharging valve structure device capable of preventing material pollution, which comprises a valve body, one side of the valve body is communicated with a support, a valve rod component is arranged in the support, one end of the valve rod component is connected with a power output device, and the other end of the valve rod component extends into the valve body and is provided with a valve plug. A material blocking groove is formed in the side, close to the power output device, of the valve plug, a sealing piece is arranged at the connecting position of the valve plug and the valve rod assembly, a polytetrafluoroethylene packing is arranged at the communicating position of the valve rod assembly and the valve body, a sealing sleeve is arranged between the polytetrafluoroethylene packing and the sealing piece, and the sealing sleeve is connected with the sealing piece in an abutting mode. The sealing device is ingenious in conception and simple in structure, due to the fact that the material blocking groove and the sealing sleeve are used in cooperation with the sealing piece, PTFE packing chippings can be prevented from entering materials to affect the quality of the materials, and the quality of final products and the yield of the products are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to crystallizing tank discharge valve technical field, concretely is a kind of discharge valve structure device to prevent material pollution. BACKGROUND

[0002] Crystallizing tank is the key equipment for crystallization, separation and purification material in chemical, pharmaceutical, food and other industries, and discharge valve as important component of crystallizing tank, its performance directly influences the cleanliness of material and production efficiency, however, the following problems exist when traditional discharge valve is applied to crystallizing tank: current discharge valve, when discharging, material will contact with sealing material tetrafluoro packing, tetrafluoro packing debris can be mixed with material to cause pollution and affect product quality, when product quality requirement is strict to reach food grade or pharmaceutical grade standard, unqualified product can appear.

[0003] Patent application number: 201510143590.8, a kind of crystalline material discharge valve, including screw hand wheel, valve cylinder, discharge port, its characterized in that: the screw hand wheel is screw rod and the disc handle fixed on it, sealing device is installed on the screw rod, sealing device is tightly sleeved on valve cylinder, valve cylinder one end, valve rod seat is fixed on the valve cylinder, valve seat is fixed on the valve cylinder, valve cylinder lower end is connected with human-shaped discharge pipe, the other end of screw rod is installed with valve plug.

[0004] The above patent still has certain deficiencies: the sealing device designed by this kind of sealing valve structure will directly contact with material, when sealing valve is used for a long time, tetrafluoro packing debris in its sealing device can leak and mix with material, thereby polluting material and affecting product quality. UTILITY MODEL CONTENT

[0005] The main technical problem to be solved by the utility model is to provide a discharge valve structure device for preventing material pollution, which has simple structure and can reduce the contact between material and tetrafluoro packing during use of sealing valve, so as to avoid pollution of tetrafluoro packing debris to material.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] A discharge valve structure device for preventing material pollution, comprising a valve body, a bracket is communicated on one side of the valve body, a valve rod assembly is arranged in the bracket, a power output device is connected to one end of the valve rod assembly, the other end of the valve rod assembly extends into the valve body and is provided with a valve plug, a material blocking groove is arranged on the side of the valve plug close to the power output device, a sealing element is arranged at the connection position of the valve plug and the valve rod assembly, a tetrafluoro packing is arranged at the position where the valve rod assembly is communicated with the valve body, a sealing sleeve is arranged between the tetrafluoro packing and the sealing element, and the sealing sleeve is in top contact with the sealing element.

[0008] The following is the further optimization of the above technical scheme by the utility model:

[0009] The side projection surface of the material blocking groove is a fan ring and is arranged at an upper position of the valve plug.

[0010] Further optimization: the fan ring angle of the side projection surface of the material blocking groove is 190-210°.

[0011] Further optimization: the plane, at which the sealing member contacts the sealing sleeve, is a bevel structure, and the contact surface of the sealing sleeve and the sealing member is a circular arc structure.

[0012] Further optimization: the upper side of the valve body is provided with a viewing mirror.

[0013] Further optimization: the side, away from the support, of the valve body is provided with a feeding port, and the lower side of the valve body is provided with a discharging port.

[0014] The utility model discloses the above-mentioned technical scheme, clever design, reasonable structure, the material blocking groove that is set up can block most materials, the cooperation of the bevel of the sealing member and the sealing sleeve circular arc surface that is set up can further block the material that passes through the material blocking groove, prevents the material and tetrafluoro packing contact, and then can avoid tetrafluoro packing debris into the material and influence the quality of material, improve the quality of final product and product's good product rate.

[0015] The utility model will be further illustrated below in connection with the drawings and examples. DRAWINGS

[0016] Figure 1 It is the whole structure schematic view of the utility model embodiment;

[0017] Figure 2 It is Figure 1 The local enlarged view of A in Fig. 2;

[0018] Figure 3 It is Figure 1 The sectional view of B in Fig. 2.

[0019] Fig. 1-Valve body;2-Support;21-Valve rod assembly;3-Valve plug;31-Material blocking groove;32-Tetrafluoro packing;33-Sealing member;34-Sealing sleeve;4-Viewing mirror;5-Feeding port;6-Discharging port. DETAILED DESCRIPTION

[0020] As Figures 1-3The utility model discloses a kind of material pollution prevention feed valve structural devices, including valve body 1, one side of valve body 1 is communicated with support 2, valve stem assembly 21 is provided in support 2, one end of valve stem assembly 21 is connected with power output device, the other end of valve stem assembly 21 extends to the inside of valve body 1 and is provided with valve plug 3, the side of valve plug 3 close to power output device is provided with material blocking groove 31, sealing element 33 is arranged at the junction of valve plug 3 and valve stem assembly 21, four fluorine packing 32 is arranged at the position where valve stem assembly 21 is communicated with valve body 1, sealing sleeve 34 is arranged between four fluorine packing 32 and sealing element 33, and sealing sleeve 34 is in contact with the top of sealing element 33.

[0021] The side projection surface of the material blocking groove 31 is a fan ring and is arranged at the upper position of the valve plug 3.

[0022] The fan ring angle of the side projection surface of the material blocking groove 31 is 190°-210°.

[0023] In use, when part of the material enters the material blocking groove 31, the material blocking groove 31 can block most of the material from contacting the four fluorine packing 32, and the part of the material that enters the material blocking groove 31 will flow downward along the arc of the material blocking groove 31, thereby preventing most of the material from reaching the position of the sealing sleeve 34.

[0024] The plane where the sealing element 33 contacts the sealing sleeve 34 is an inclined plane, and the contact surface between the sealing sleeve 34 and the sealing element 33 is a circular arc structure.

[0025] This design can effectively improve the tightness of the sealing sleeve 34 and the sealing element 33, and can prevent the debris of the four fluorine packing 32 from contacting the material.

[0026] In this embodiment, the material of the sealing sleeve 34 can be polytetrafluoroethylene material that meets food-grade or pharmaceutical-grade standards. Polytetrafluoroethylene material has low friction coefficient and is not easy to wear.

[0027] The upper side of the valve body 1 is provided with an observation mirror 4.

[0028] In this embodiment, the observation mirror 4 is used to observe the flow of material in the valve body 1.

[0029] The side of the valve body 1 away from the support 2 is provided with a feed inlet 5, and the lower side of the valve body 1 is provided with a discharge outlet 6.

[0030] In the initial position, the valve plug 3 is located in the feed port 5, when the need for feeding, power output device work with the valve stem assembly 21 to move away from the feed port 5 location, the valve stem assembly 21 with the valve plug 3 moves together, until the valve plug 3 moves to the valve body 1 away from the feed port 5 side, the material through the feed port 5 into the inner cavity of the valve body 1, at this time there will be part of the material through the valve plug 3 to the direction of the support 2 flow, this time the material blocking groove 31 will block most of the material, so that the material accumulated in the material blocking groove 31, and under the action of gravity along the material blocking groove 31 arc down flow, flow to the valve body 1 lower side position and from the discharge port 6 position discharge, a small part of the material will pass through the material blocking groove 31 to the sealing sleeve 34 position, through the sealing element 33 inclined surface and sealing sleeve 34 arc surface cooperation, further block the material and the contact with the four fluorine packing 32.

[0031] For those of ordinary skill in the art, according to the teachings of the present application, without departing from the principles and spirit of the present application, the changes, modifications, replacements and variations of the embodiments still fall within the scope of the present application.

Claims

1. A discharge valve structure for preventing material contamination, characterized in that: The utility model provides a valve body (1) is connected with support (2) on one side, and support (2) is provided with valve rod assembly (21) in, and one end of valve rod assembly (21) is connected with power output device, and the other end of valve rod assembly (21) extends to the inside of valve body (1) and is provided with valve plug (3), and the side of valve plug (3) near power output device is provided with material blocking groove (31), and the connecting place of valve plug (3) and valve rod assembly (21) is provided with sealing element (33), and the communicating position of valve rod assembly (21) and valve body (1) is provided with tetrafluoro disc packing (32), and tetrafluoro disc packing (32) and sealing element (33) are provided with sealing sleeve (34) between, and sealing sleeve (34) and sealing element (33) top meet.

2. The material contamination preventing feed valve structure device according to claim 1, wherein: The side projection surface of the material blocking groove (31) is a fan ring and is arranged at the upper position of the valve plug (3).

3. The material contamination preventing feed valve structure apparatus according to claim 2, wherein: The fan ring angle of the side projection surface of the material blocking groove (31) is 190°-210°.

4. The material contamination preventing feed valve structure apparatus according to claim 3, wherein: The plane where the sealing element (33) and the sealing sleeve (34) contact is an inclined surface structure, and the contact surface between the sealing sleeve (34) and the sealing element (33) is a circular arc structure.

5. The material contamination preventing feed valve structure apparatus according to claim 4, wherein: The upper side of the valve body (1) is provided with a viewing mirror (4).

6. The material contamination preventing feed valve structure apparatus according to claim 5, wherein: The side of the valve body (1) away from the support (2) is provided with an inlet (5), and the lower side of the valve body (1) is provided with an outlet (6).

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