Tank bottom diaphragm valve with sampling function

Abstract

The tank bottom diaphragm valve with the sampling function comprises a bottom sealing cover, a liquid storage bent pipe is fixedly connected to the surface of the lower end of the bottom sealing cover, a diaphragm valve is fixedly connected to the surface of the bottom end of the liquid storage bent pipe, and a liquid outlet pipe is fixedly connected to the surface of one side of the diaphragm valve. A liquid separation pipe is fixedly connected to the surface of one side of the liquid storage bent pipe, and a sampling valve is fixedly connected to the surface of the other side of the liquid separation pipe, so that the problem that a solution in the tank body above the diaphragm valve needs to be sampled and detected is solved, and the real-time condition of the solution is detected; and the problem of solution deterioration caused by the fact that the solution cannot be detected is avoided.

Description

Technical Field

[0001] The utility model mainly relates to the field of diaphragm valves, in particular to a tank bottom diaphragm valve with a sampling function. Background Art

[0002] Sanitary tank bottom diaphragm valve is mainly used as the liquid discharge control valve at the bottom of the tank of pharmaceutical and food dispensing equipment. Compared with other types of valves, the connection between the valve seat and the dispensing equipment is smooth. The lower part of the valve seat is a disc with a certain curvature, which is basically consistent with the curvature of the equipment head at the connection, avoiding the residue of liquid at the bottom of the dispensing equipment and completely eliminating the blind end at the bottom of the dispensing equipment, ensuring that the dispensing equipment is thoroughly sterilized and disinfected, and meeting the requirements of food and pharmaceutical safety management specifications.

[0003] In the invention patent application with application number CN201620140176.1, application publication date 2016.04.17, and titled "A Tank Bottom Diaphragm Valve", the invention includes a valve seat, a liquid outlet pipe, a valve cover, a valve stem, and a valve handle. One side of the valve seat is connected to the lower head of the material tank, and the other side is provided with a pipeline interface fixedly connected to the liquid outlet pipe. The valve cover is fixed to the outer side wall of the valve seat pipeline interface by locking bolts to form a valve cavity. The valve stem is arranged in the valve cavity. The diaphragm valve discharges the liquid through the tank bottom diaphragm valve without any residue.

[0004] However, during the actual use of the diaphragm valve, it is necessary to sample and test the solution inside the tank above the diaphragm valve so as to detect the real-time condition of the solution and avoid the deterioration of the solution due to the inability to detect the solution. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model:

[0006] The utility model provides a tank bottom diaphragm valve with a sampling function, which is used to solve the need to sample and detect the solution inside the tank body above the diaphragm valve, so as to realize the real-time status detection of the solution and avoid the problem of solution deterioration caused by the inability to detect the solution.

[0007] 2. Technical solution:

[0008] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is: a tank bottom diaphragm valve with a sampling function, including a bottom sealing cover, a liquid storage elbow pipe is fixedly connected to the lower end surface of the bottom sealing cover, a diaphragm valve is fixedly connected to the bottom end surface of the liquid storage elbow pipe, a liquid outlet pipe is fixedly connected to one side surface of the diaphragm valve, a liquid distribution pipe is fixedly connected to one side surface of the liquid storage elbow pipe, and a sampling valve is fixedly connected to the other side surface of the liquid distribution pipe.

[0009] Furthermore, the bottom sealing cover is interconnected with the bottom of the desired tank body, the diaphragm valve is interconnected with the sampling valve through a liquid storage elbow, and a 90° vertical structure is formed between the sampling valve and the bottom sealing cover.

[0010] Furthermore, the diaphragm valve includes a metal valve body, a flow guide cavity is arranged inside the metal valve body, a movable diaphragm is arranged on the inner wall of the flow guide cavity, both side surfaces of the movable diaphragm are movably connected with limiting sliding rods, the top surface of the limiting sliding rods is sleeved with a supporting spring, the other end of the supporting spring is fixedly connected to the surface of the movable diaphragm, one side surface of the metal valve body is movably connected with a threaded rod, the threaded rod is located inside the flow guide cavity, and a sealing cavity is fixedly connected to the inner wall surface of the flow guide cavity, one end surface of the threaded rod is fixedly connected with a sealing gasket, the top end of the threaded rod is fixedly connected with an outward convex top rod, and a discharge port is arranged on one side surface of the flow guide cavity.

[0011] Furthermore, an inner groove is provided on the surface of the movable diaphragm, and a liquid inlet fixedly connected to the liquid storage elbow is provided on the top of the metal valve body. The movable diaphragm is arranged on the inner surface of the liquid inlet through a supporting spring, and an elastic structure is formed on the surface of the liquid inlet through the supporting spring. The threaded rod is threadedly connected to the surface of the metal valve body, and the external convex top rod forms an elastic telescopic structure with the movable diaphragm through the threaded rod.

[0012] Furthermore, the sampling valve includes a parallel valve body, a sampling flow channel is arranged inside the parallel valve body, a circular inner groove is arranged in the middle section of the sampling flow channel, a hollow rotating ball is movably connected inside the circular inner groove, and a sampling knob is fixedly connected to the lower end surface of the hollow rotating ball.

[0013] Furthermore, the sampling valve is fixedly connected to the liquid storage elbow via a liquid dispensing tube, the hollow rotating ball is movably connected to the surface of the circular inner groove, and a through groove is provided on the surface of the hollow rotating ball to align with the sampling flow channel.

[0014] 3. Beneficial effects:

[0015] The utility model has a reasonable design. Under the general situation of tank solution storage, the solution is stored in the liquid storage elbow under the sealing of the diaphragm valve and the sampling valve. When discharge processing is required, the threaded screw rod in the diaphragm valve is rotated and screwed to drive the convex push rod to release the support for the movable diaphragm so that the movable diaphragm moves along the limit slide rod under the support of the support spring. The solution enters the diversion cavity through the gap between the movable diaphragm and the diversion cavity, and finally enters the liquid outlet pipe from the discharge port for normal discharge. After the discharge is completed, the threaded screw rod is reversed to drive the convex push rod to move again to make the movable diaphragm close to the inner wall of the diversion cavity to complete the seal. At the same time, the sealing gasket moves with the rotating threaded screw rod, and closes the arm in the sealing cavity to complete the seal, thereby avoiding leakage.

[0016] When sampling is required, the sampling knob in the sampling valve is rotated to drive the hollow rotating ball to rotate and align with the sampling channel, so that the solution in the liquid storage elbow is partially discharged through the liquid separation tube, the sampling channel and the hollow rotating ball, thereby realizing real-time detection of the solution status. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a plan view of the utility model;

[0019] Figure 3 This is a schematic diagram of a diaphragm valve of the utility model;

[0020] Figure 4 This is a schematic diagram of a sampling valve of the present utility model.

[0021] Reference numerals:

[0022] 1. Bottom sealing cover; 2. Liquid storage elbow; 3. Diaphragm valve; 301. Metal valve body; 302. Diversion chamber; 303. Movable diaphragm; 304. Limiting slide rod; 305. Support spring; 306. Threaded rod; 307. Sealing chamber; 308. Sealing gasket; 309. Externally convex top rod; 310. Discharge port; 4. Liquid outlet pipe; 5. Liquid separator; 6. Sampling valve; 601. Parallel valve body; 602. Sampling flow channel; 603. Circular inner groove; 604. Hollow rotating ball; 605. Sampling knob. DETAILED DESCRIPTION

[0023] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0027] See attached Figure 1-4 , including a bottom sealing cover 1, a liquid storage elbow 2 is fixedly connected to the lower end surface of the bottom sealing cover 1, a diaphragm valve 3 is fixedly connected to the bottom end surface of the liquid storage elbow 2, a liquid outlet pipe 4 is fixedly connected to one side surface of the diaphragm valve 3, a liquid separation pipe 5 is fixedly connected to one side surface of the liquid storage elbow 2, and a sampling valve 6 is fixedly connected to the other side surface of the liquid separation pipe 5. The bottom sealing cover 1 is interconnected with the bottom of the required tank body, the diaphragm valve 3 is interconnected with the sampling valve 6 through the liquid storage elbow 2, and a 90° vertical structure is formed between the sampling valve 6 and the bottom sealing cover 1. The device collects small doses of samples through the sampling valve 6 arranged above the diaphragm valve 3.

[0028] The diaphragm valve 3 includes a metal valve body 301, a flow guide cavity 302 is arranged inside the metal valve body 301, a movable diaphragm 303 is arranged on the inner wall of the flow guide cavity 302, and the two side surfaces of the movable diaphragm 303 are movably connected to the limiting sliding rod 304, and the top surface of the limiting sliding rod 304 is sleeved and connected with a supporting spring 305, and the other end of the supporting spring 305 is fixedly connected to the surface of the movable diaphragm 303, and a threaded screw rod 306 is movably connected to the surface of one side of the metal valve body 301, and the threaded screw rod 306 is located inside the flow guide cavity 302 and is fixedly connected to the inner wall surface of the flow guide cavity 302 with a sealing cavity 307, and one end of the threaded screw rod 306 A sealing gasket 308 is fixedly connected to the surface, an external convex push rod 309 is fixedly connected to the top of the threaded rod 306, a discharge port 310 is arranged on one side surface of the guide cavity 302, an inner groove is arranged on the surface of the movable diaphragm 303, a liquid inlet fixedly connected to the liquid storage elbow 2 is arranged on the top of the metal valve body 301, the movable diaphragm 303 is arranged on the inner surface of the liquid inlet through a supporting spring 305, and an elastic structure is formed on the surface of the liquid inlet through the supporting spring 305, the threaded rod 306 is threadedly connected to the surface of the metal valve body 301, and the external convex push rod 309 forms an elastic telescopic structure with the movable diaphragm 303 through the threaded rod 306.

[0029] In this embodiment, under normal circumstances of tank solution storage, the solution is stored inside the liquid storage elbow 2 under the sealing of the diaphragm valve 3 and the sampling valve 6. When discharge is required, the threaded screw rod 306 in the diaphragm valve 3 is rotated and screwed to drive the convex push rod 309 to release the support for the movable diaphragm 303, so that the movable diaphragm 303 moves along the limit slide rod 304 under the support of the support spring 305. The solution enters the diversion cavity 302 through the gap between the movable diaphragm 303 and the diversion cavity 302, and finally enters the liquid outlet pipe 4 from the discharge port 310 for normal discharge. After the discharge is completed, the threaded screw rod 306 is reversed to drive the convex push rod 309 to move again to make the movable diaphragm 303 close to the inner wall of the diversion cavity 302 to complete the seal. At the same time, the sealing gasket 308 moves with the rotating threaded screw rod 306, and closes the inner arm of the sealing cavity 307 to complete the seal, thereby avoiding leakage.

[0030] The sampling valve 6 includes a parallel valve body 601, a sampling flow channel 602 is arranged inside the parallel valve body 601, a circular inner groove 603 is arranged in the middle section of the sampling flow channel 602, a hollow rotating ball 604 is movably connected inside the circular inner groove 603, a sampling knob 605 is fixedly connected to the lower end surface of the hollow rotating ball 604, the sampling valve 6 is fixedly connected to the liquid storage elbow 2 through the liquid distribution tube 5, the hollow rotating ball 604 is movably connected to the surface of the circular inner groove 603, and a through groove is arranged on the surface of the hollow rotating ball 604 to align with the sampling flow channel 602.

[0031] In this embodiment, when sampling is required, the sampling knob 605 in the sampling valve 6 is rotated to drive the hollow rotating ball 604 to rotate and align with the sampling channel 602, so that the solution in the liquid storage bend 2 is partially discharged through the liquid separation tube 5, the sampling channel 602 and the hollow rotating ball 604, thereby realizing the real-time detection of the solution status.

[0032] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A tank bottom diaphragm valve with sampling function, characterized in that The invention comprises a bottom sealing cover (1), the lower end surface of the bottom sealing cover (1) is fixedly connected to a liquid storage curved pipe (2), the bottom end surface of the liquid storage curved pipe (2) is fixedly connected to a diaphragm valve (3), one side surface of the diaphragm valve (3) is fixedly connected to a liquid outlet pipe (4), one side surface of the liquid storage curved pipe (2) is fixedly connected to a liquid dispensing pipe (5), and the other side surface of the liquid dispensing pipe (5) is fixedly connected to a sampling valve (6).

2. The tank bottom diaphragm valve with sampling function according to claim 1, characterized in that: The bottom sealing cover (1) is interconnected with the bottom of the desired tank body, the diaphragm valve (3) is interconnected with the sampling valve (6) via the liquid storage elbow (2), and the sampling valve (6) and the bottom sealing cover (1) form a 90° vertical structure.

3. The tank bottom diaphragm valve with sampling function according to claim 1, characterized in that: The diaphragm valve (3) comprises a metal valve body (301), a flow guide cavity (302) is arranged inside the metal valve body (301), a movable diaphragm (303) is arranged on the inner wall of the flow guide cavity (302), both sides of the movable diaphragm (303) are movably connected to limit slide bars (304), the top surface of the limit slide bar (304) is sleeved with a support spring (305), the other end of the support spring (305) is fixedly connected to the surface of the movable diaphragm (303), A threaded rod (306) is movably connected to the surface of one side of the metal valve body (301); the threaded rod (306) is located inside the flow guide cavity (302), and a sealing cavity (307) is fixedly connected to the inner wall surface of the flow guide cavity (302); a sealing gasket (308) is fixedly connected to the surface of one end of the threaded rod (306); an external convex top rod (309) is fixedly connected to the top of the threaded rod (306); and a discharge port (310) is provided on the surface of one side of the flow guide cavity (302).

4. The tank bottom diaphragm valve with sampling function according to claim 3, characterized in that: The surface of the movable diaphragm (303) is provided with an inner groove, the top of the metal valve body (301) is provided with a liquid inlet fixedly connected to the liquid storage elbow (2), the movable diaphragm (303) is arranged on the inner surface of the liquid inlet via a support spring (305), and an elastic structure is formed on the surface of the liquid inlet via the support spring (305), the threaded rod (306) is threadedly connected to the surface of the metal valve body (301), and the external convex top rod (309) forms an elastic telescopic structure with the movable diaphragm (303) via the threaded rod (306).

5. The tank bottom diaphragm valve with sampling function according to claim 1, characterized in that: The sampling valve (6) comprises a parallel valve body (601), a sampling flow channel (602) is arranged inside the parallel valve body (601), a circular inner groove (603) is arranged in the middle section of the sampling flow channel (602), a hollow rotating ball (604) is movably connected inside the circular inner groove (603), and a sampling knob (605) is fixedly connected to the lower end surface of the hollow rotating ball (604).

6. The tank bottom diaphragm valve with sampling function according to claim 5, characterized in that: The sampling valve (6) is fixedly connected to the liquid storage elbow (2) via a liquid dispensing tube (5); the hollow rotating ball (604) is movably connected to the surface of the circular inner groove (603); and a through groove is provided on the surface of the hollow rotating ball (604) to align with the sampling flow channel (602).

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