Plunger sampling tank bottom valve

Abstract

The utility model relates to a plunger sampling tank bottom valve, and relates to the technical field of tank bottom valves, the plunger sampling tank bottom valve comprises a tank bottom valve body, a valve cavity is formed in the tank bottom valve body, and the valve cavity is connected with the interior of a tank body. A discharging port and a sampling port are further formed in the tank bottom valve body, and the discharging port and the sampling port are both communicated with the valve cavity. A diaphragm and a plug are arranged on the tank bottom valve body, the diaphragm controls opening / closing between the discharging port and the valve cavity, and the plug controls opening / closing between the sampling port and the valve cavity. The tank bottom valve body is provided with a first driving assembly and a second driving assembly, and the first driving assembly and the second driving assembly drive the diaphragm and the plug to move on the tank bottom valve body correspondingly. Through vertical movement of the first driving assembly or the second driving assembly, opening / closing of discharging and sampling is formed, accumulation and accumulation of materials at the bottom of the tank can be greatly reduced, the materials in the pipe are evenly stirred, no accumulation exists at a sampling opening, and sampling is accurate.

Description

Technical Field

[0001] The present application relates to the technical field of tank bottom valves, and in particular to a plunger sampling tank bottom valve. Background Art

[0002] A tank bottom valve is a valve installed at the bottom of a tank to control the outflow of liquid or gas within the tank, ensuring the smooth operation of the production process. It is commonly used in the chemical, pharmaceutical, food and beverage industries to discharge highly clean, corrosive, or high-value materials.

[0003] An existing Chinese patent, publication number CN218408549U, discloses a fermenter sampling valve, relating to the technical field of sampling valves. The invention comprises a sampling valve body, with a connecting joint and a sampling joint fixedly connected at both ends of the exterior of the sampling valve body, the three being sequentially interconnected. An adjustment assembly is mounted on the top of the sampling valve body, with a shutoff flap rotatably connected to the interior of the sampling valve body. The adjustment assembly includes an adjustment disk, the bottom periphery of which is rotatably connected to the top of the sampling valve body. A connecting column is inserted and fixed into the interior of the adjustment disk, and an automatically returnable drive device is fixedly connected to the top of the adjustment disk.

[0004] When using the above-mentioned sampling valve, the sampling valve needs to be welded separately to the outside of the tank body. When sampling is required, the valve setting is opened by squeezing the force-bearing handle and the positioning handle instead of rotating the valve. After sampling is completed, the valve is closed.

[0005] Regarding the above-mentioned related technologies, the inventors believe that there will be a long liquid accumulation area at the front end of the sampling, which will lead to material waste on the one hand, and on the other hand, the material will easily deteriorate if it accumulates in the liquid accumulation area for a long time, affecting the detection results of the material. Utility Model Content

[0006] The technical problem to be solved by the present invention is to provide a plunger sampling tank bottom valve, which solves the technical problems that there is a long liquid accumulation area at the sampling front end, which on the one hand leads to material waste, and on the other hand, the material is easily deteriorated due to long-term accumulation in the liquid accumulation area, thereby affecting the material detection results.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A plunger sampling tank bottom valve, comprising:

[0009] A tank bottom valve body, wherein a valve cavity, a discharge port and a sampling port are formed on the tank bottom valve body, and the discharge port and the sampling port are both connected to the valve cavity;

[0010] A diaphragm, the diaphragm being mounted on the tank bottom valve body and being used to control the opening / closing of the valve cavity and the discharge port;

[0011] a first drive assembly, the first drive assembly being mounted on the tank bottom valve body and configured to drive the diaphragm to open / close;

[0012] A plug, which is pressed against a side of the tank bottom valve body close to the sampling port and is used to control the opening / closing of the sampling port;

[0013] A second drive assembly is mounted on the tank bottom valve body and is used to drive the sampling port to open or close.

[0014] Through the above technical solution, the tank bottom valve body is connected to the bottom of the storage tank, and the first drive component drives the diaphragm to control the opening / closing between the discharge port and the valve cavity. When sampling is required, the second drive component drives the plug sampling port to separate, and part of the material flows out through the sampling port. By combining the sampling port with the discharge port, the accumulation of materials can be greatly reduced and the waste of materials can be reduced. Since materials need to be frequently discharged through the discharge port, the material flows faster and the material is not easy to accumulate and deteriorate.

[0015] Furthermore, a buffer plate and a pressure block are provided on one side of the tank bottom valve body, a connecting bolt is provided on the diaphragm, one end of the connecting bolt is connected to the diaphragm, and the other end passes through the buffer plate and the pressure block, a fixing nut is provided on one side of the pressure block, the fixing nut is threadedly connected to the connecting bolt, and one end of the fixing nut is pressed against the pressure block.

[0016] Through the above technical solution, the pressing block is pressed against the tank bottom valve body through the buffer plate and the diaphragm, so that the convenience of sealing between the discharge port and the sampling port is improved.

[0017] Furthermore, the first driving assembly includes a rotating rod, the rotating rod is threadedly connected to the tank bottom valve body, and one end of the rotating rod is clamped on the pressing block.

[0018] Through the above technical solution, one end of the rotating rod is engaged with the pressing block, so that the convenience of the pressing block pressing the diaphragm against the tank bottom valve body is improved.

[0019] Furthermore, a sampling cavity is formed on one side of the tank bottom valve body close to the sampling port, the sampling cavity is communicated with the sampling port, and one side of the plug is pressed against the inner wall of the sampling cavity.

[0020] Through the above technical solution, the sampling cavity is connected to the sampling port, so that the convenience of extracting materials is improved.

[0021] Furthermore, the second driving member includes a pull rod, one end of which is connected to the plug, and the pull rod drives the plug to move on the tank bottom valve body.

[0022] Through the above technical solution, one end of the pull rod is connected to the plug, so that the convenience of opening / closing the plug is improved.

[0023] Furthermore, a pressing spring is provided on the pull rod, and two ends of the pressing spring are respectively pressed between the pull rod and the tank bottom valve body.

[0024] Through the above technical solution, the pressing spring is pressed between the tank bottom valve body and the pull rod, so that the stability of the plug pressing against the tank bottom valve body is improved.

[0025] Furthermore, a guide slope is formed on a side of the tank bottom valve body close to the valve cavity, and the guide slope is inclined toward a side close to the discharge port and the sampling port.

[0026] Through the above technical solution, the inclination direction of the guiding slope is toward the discharge port and the sampling port, so that the flow efficiency of the material is improved, and further the accumulation of the material in the valve cavity can be reduced.

[0027] In summary, the present application includes at least one of the following beneficial technical effects of the plunger sampling tank bottom valve:

[0028] The tank bottom valve body is connected to the bottom of the storage tank. The first drive component drives the diaphragm to control the opening / closing between the discharge port and the valve cavity. When sampling is required, the second drive component drives the plug sampling port to separate, and part of the material flows out through the sampling port. By combining the sampling port with the discharge port, the accumulation of materials can be greatly reduced, and the waste of materials can be reduced. Since materials need to be discharged frequently through the discharge port, the material flow is faster and the materials are not easy to accumulate and deteriorate.

[0029] The arrangement of the buffer plate, the pressure block and the rotating rod improves the convenience of the diaphragm pressing against the tank bottom valve body;

[0030] The arrangement of the rotating rod and the pull rod improves the convenience of taking materials and sampling when the tank bottom valve body is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall structure of a plunger sampling tank bottom valve mainly provided by this application;

[0032] Figure 2 This is a cross-sectional view of the rotating rod structure mainly provided by this application;

[0033] Figure 3 This is a cross-sectional view of the pull rod structure mainly provided by this application.

[0034] Figure numerals: 1. Tank bottom valve body; 11. Valve cavity; 12. Discharge port; 121. Diaphragm; 13. Sampling port; 131. Plug; 132. Deformation cavity; 2. Upper valve body; 21. Discharge pipe; 22. Buffer plate; 23. Pressure block; 24. Connecting bolt; 25. Fixing nut; 26. Sampling cavity; 27. Sampling tube; 28. Guide slope; 3. Lower valve body; 4. First drive assembly; 41. Rotating rod; 42. Rotating disk; 5. Second drive assembly; 51. Pull rod; 52. Tightening spring. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0036] The following is combined with Figure 1-3 This application is described in further detail.

[0037] The embodiment of the present application discloses a plunger sampling tank bottom valve.

[0038] Reference Figure 1-Figure 2 A plunger sampling tank bottom valve includes a tank bottom valve body 1, on which a valve cavity 11 is formed, and the valve cavity 11 is connected to the interior of the tank body. A discharge port 12 and a sampling port 13 are also formed on the tank bottom valve body 1, and both the discharge port 12 and the sampling port 13 are connected to the valve cavity 11. A diaphragm 121 and a plug 131 are provided on the tank bottom valve body 1, and the diaphragm 121 controls the opening / closing between the discharge port 12 and the valve cavity 11, and the plug 131 controls the opening / closing between the sampling port 13 and the valve cavity 11. A first drive assembly 4 and a second drive assembly 5 are provided on the tank bottom valve body 1, and the first drive assembly 4 and the second drive assembly 5 respectively drive the diaphragm 121 and the plug 131 to move on the tank bottom valve body 1.

[0039] Reference Figure 2 The tank bottom valve body 1 comprises an upper valve body 2 and a lower valve body 3, which are bolted to the upper valve body 2. A valve chamber 11 is formed between the upper and lower valve bodies 2 and 3. A discharge pipe 21 is formed on the upper valve body 2. One end of the discharge pipe 21 is integrally formed with the upper valve body 2, and the other end extends away from the upper valve body 2. A discharge port 12 is formed at the end of the discharge pipe 21 away from the upper valve body 2.

[0040] The diaphragm 121 is located between the upper valve body 2 and the lower valve body 3. A buffer plate 22 and a pressure block 23 are installed on the side of the diaphragm 121 closest to the lower valve body 3. The buffer plate 22 and diaphragm 121 are made of a composite material of polytetrafluoroethylene and ethylene propylene rubber. The diaphragm 121 and buffer plate 22 are tightly pressed between the upper valve body 2 and the lower valve body 3. A connecting bolt 24 is installed on the diaphragm 121. One end of the connecting bolt 24 is injection-molded to the diaphragm 121. The other end of the connecting bolt 24 passes through the buffer plate 22 and the pressure block 23 in sequence. A fixing nut 25 is installed on the pressure block 23 and is threadedly connected to the connecting bolt 24. The fixing nut 25 locks the pressure block 23 to the buffer plate 22.

[0041] Reference Figure 2 The first drive assembly 4 can be driven manually, pneumatically, or electrically to drive the pressing block 23 to move. Preferably, the first drive assembly 4 is driven manually to drive the pressing block 23. The first drive assembly 4 includes a rotating rod 41. One end of the rotating rod 41 penetrates into the lower valve body 3, and the end of the rotating rod 41 that penetrates the lower valve body 3 is engaged with the pressing block 23. A rotating disk 42 is installed at the end of the rotating rod 41 away from the lower valve body 3. When in use, the rotating disk 42 is driven to rotate, and the rotating disk 42 drives the rotating rod 41 to rotate. As the rotating rod 41 rotates on the lower valve body 3, the rotating rod 41 presses the buffer plate 22 and the diaphragm 121 against the upper valve body 2 through the pressing block 23, so that the valve cavity 11 and the discharge port 12 are in a closed state. When it is necessary to remove the material, the rotating rod 41 is driven to rotate in the opposite direction, so that the buffer plate 22 and the diaphragm 121 are separated from the upper valve body 2. At this time, the valve cavity 11 and the discharge port 12 are in a conducting state.

[0042] Reference Figure 3 A sampling cavity 26 is formed on one side of the upper valve body 2 near the sampling port 13. The sampling cavity 26 communicates with the valve cavity 11 through the sampling port 13. A sampling tube 27 is formed on the upper valve body 2. One end of the sampling tube 27 communicates with the sampling cavity 26 and the other end extends to a side away from the upper valve body 2.

[0043] The plug 131 is pressed against the side of the sampling chamber 26 close to the sampling port 13. The plug 131 is made of polytetrafluoroethylene material. In order to improve the convenience of opening / closing the sampling port 13 by the plug 131, the second drive component 5 can drive the pull rod 51 to move manually, pneumatically and electrically. The preferred second drive component 5 drives the pull rod 51 manually. The second drive component 5 includes a pull rod 51, one end of the pull rod 51 is connected to the plug 131, and the other end passes through the upper valve body 2. When in use, the plug 131 is driven to move by the pull rod 51.

[0044] Reference Figure 3A deformation cavity 132 is formed between the plug 131 and the upper valve body 2. When the plug 131 is separated from the sampling port 13, the plug 131 deforms toward the side closer to the deformation cavity 132. In order to improve the stability of the plug 131 against the sampling port 13, a tightening spring 52 is provided on the pull rod 51. The tightening spring 52 is sleeved on the pull rod 51, and one end of the tightening spring 52 presses against the pull rod 51, and the other end presses against the upper valve body 2. When the pull rod 51 is pulled to move away from the upper valve body 2, the tightening spring 52 is in a compressed state. At this time, the valve cavity 11, the sampling port 13 and the sampling cavity 26 are connected. When the pull rod 51 is released, the plug 131 presses against the sampling port 13 under the action of the tightening spring 52, so that the valve cavity 11 and the sampling cavity 26 are in a closed state.

[0045] Reference Figure 2 Furthermore, a guide slope 28 is formed on the upper valve body 2, and the guide slope 28 is inclined toward the side close to the discharge port 12 and the sampling port 13. When in use, the material flows along the guide slope 28 toward the discharge port 12 and the sampling port 13. On the one hand, the guide slope 28 can improve the flow effect of the material, and on the other hand, it can also reduce the accumulation of material in the valve cavity 11.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A plunger sampling tank bottom valve, characterized in that: include: A tank bottom valve body (1), wherein a valve cavity (11), a discharge port (12) and a sampling port (13) are formed on the tank bottom valve body (1), and the discharge port (12) and the sampling port (13) are both communicated with the valve cavity (11); a diaphragm (121), the diaphragm (121) being mounted on the tank bottom valve body (1), the diaphragm (121) being used to control the opening / closing between the valve cavity (11) and the discharge port (12); a first drive assembly (4), the first drive assembly (4) being mounted on the tank bottom valve body (1), the first drive assembly (4) being used to drive the diaphragm (121) to open / close; A plug (131), the plug (131) is pressed against a side of the tank bottom valve body (1) close to the sampling port (13), and the plug (131) is used to control the opening / closing of the sampling port (13); A second drive assembly (5), the second drive assembly (5) is mounted on the tank bottom valve body (1), and the second drive assembly (5) is used to drive the sampling port (13) to open / close.

2. A plunger sampling tank bottom valve according to claim 1, characterized in that: A buffer plate (22) and a pressure block (23) are provided on one side of the tank bottom valve body (1); a connecting bolt (24) is provided on the diaphragm (121); one end of the connecting bolt (24) is connected to the diaphragm (121), and the other end passes through the buffer plate (22) and the pressure block (23); a fixing nut (25) is provided on one side of the pressure block (23); the fixing nut (25) is threadedly connected to the connecting bolt (24), and one end of the fixing nut (25) is tightly pressed against the pressure block (23).

3. The plunger sampling tank bottom valve according to claim 2, characterized in that: The first driving assembly (4) comprises a rotating rod (41), the rotating rod (41) is threadedly connected to the tank bottom valve body (1), and one end of the rotating rod (41) is clamped on the pressing block (23).

4. The plunger sampling tank bottom valve according to claim 1, characterized in that: A sampling cavity (26) is formed on one side of the tank bottom valve body (1) close to the sampling port (13), the sampling cavity (26) is communicated with the sampling port (13), and one side of the plug (131) is pressed against the inner wall of the sampling cavity (26).

5. The plunger sampling tank bottom valve according to claim 1, characterized in that: The second driving assembly (5) comprises a pull rod (51), one end of which is connected to the plug (131), and the pull rod (51) drives the plug (131) to move on the tank bottom valve body (1).

6. The plunger sampling tank bottom valve according to claim 5, characterized in that: A pressing spring (52) is provided on the pull rod (51), and two ends of the pressing spring (52) are respectively pressed between the pull rod (51) and the tank bottom valve body (1).

7. The plunger sampling tank bottom valve according to claim 1, characterized in that: A guide slope (28) is formed on a side of the tank bottom valve body (1) close to the valve cavity (11), and the guide slope (28) is inclined toward a side close to the discharge port (12) and the sampling port (13).

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