Quantitative sampling valve for fluorine lining

Abstract

The invention provides a quantitative sampling valve for lining fluorine, and relates to the technical field of valves, the quantitative sampling valve comprises a valve main body, the top of the valve main body is fixedly provided with an upper sealing cover, and the bottom of the valve main body is fixedly provided with a lower sealing cover; fluorine lining layers are arranged on the inner walls of the valve main body, the upper sealing cover and the lower sealing cover; a threaded support is fixedly arranged at the top of the upper sealing cover, a threaded cylinder is in threaded connection with the middle of the threaded support, and a valve element rod is slidably arranged in the middle of the threaded cylinder. Multiple sampling modes are provided, the bottom of the corrugated valve element is lifted through the lever effect, at the moment, the bottom of the corrugated valve element is separated from the lower sealing cover, liquid penetrates through the lower sealing cover and the sampling connector and enters the sampling bottle, sampling can be conducted, the air bag valve element expands downwards and blocks the middle of the closed auxiliary valve, flow can be stopped, sampling is conducted after flow stopping is conducted for a certain time, and sampling is conducted. The operation is convenient, the control is stable, and the problem that the existing valve lacks a multi-mode sampling function is solved.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to a quantitative sampling valve for fluorine lining. Background Art

[0002] Fluorine-lined pipes have excellent temperature resistance and corrosion resistance. They are used in fields such as chemical processing to transport liquids that are corrosive to metals. Fluorine lining can prevent liquids from contacting metals to cause corrosion of the pipes or some chemical reactions that cause reduced valve strength.

[0003] The sampling valves currently used have the following disadvantages:

[0004] 1. Only the flowing liquid is sampled, the sampling effect is poor, it is inconvenient to detect whether the composition of the liquid in the limited flow or static state has changed, and there is a lack of sampling effect in multiple states;

[0005] 2. There is a lack of a stable and safe exhaust interception structure during sealed sampling, which makes it inconvenient to only exhaust the gas and block the liquid;

[0006] 3. Direct liquid sampling alone cannot obtain large particles produced by precipitation or flow, and lacks filtering sampling function. Summary of the invention

[0007] In view of this, the present invention aims at the deficiencies in the above-mentioned prior art and provides a quantitative sampling valve for fluorine lining.

[0008] The present invention provides a quantitative sampling valve for fluorine lining, which specifically comprises: a valve body, wherein an upper sealing cover is fixedly arranged on the top of the valve body, and a lower sealing cover is fixedly arranged on the bottom of the valve body; a fluorine lining layer is arranged on the inner walls of the valve body, the upper sealing cover and the lower sealing cover; a threaded bracket is fixedly arranged on the top of the upper sealing cover, a threaded barrel is connected to the middle thread of the threaded bracket, and a valve core rod is slidably arranged in the middle of the threaded barrel; a rubber ring is fixedly arranged in the middle of the top of the upper sealing cover, and the valve core rod slides in the rubber ring; a fixing plate is fixedly arranged on the outside of the valve core rod, and the top of the fixing plate A spring is sleeved between the inner upper part of the threaded tube; a corrugated valve core is fixedly arranged at the bottom of the upper sealing cover, the bottom of the corrugated valve core is a cone-shaped structure, and the bottom end of the valve core rod is fixedly connected to the inner lower part of the corrugated valve core; the top of the lower sealing cover is a cone-shaped structure, and the middle of the top of the lower sealing cover is an inverted cone-shaped structure and matches the bottom of the corrugated valve core; a flow meter is fixedly arranged at the inlet of the valve body; a sampling joint is fixedly arranged at the bottom of the lower sealing cover through a threaded connection, and a sampling bottle is arranged at the bottom of the sampling joint through a threaded connection; an auxiliary valve is connected to the outlet of the valve body.

[0009] Optionally, a swing rod is fixedly provided on the top of the upper sealing cover, a round convex structure is integrally provided on the lower end of the swing rod, and a handle is provided above the swing rod.

[0010] Optionally, a guide slider is fixedly provided on the top of the valve core rod, a slide groove structure is integrally provided on the outside of the guide slider, and the round convex structure of the swing rod slides in the slide groove structure of the guide slider.

[0011] Optionally, a crossbeam is integrally provided on the inner rear side of the flowmeter, a flow velocity impeller is rotatably provided at the front end of the crossbeam in cooperation with a waterproof bearing, a line is provided inside the crossbeam, passes through the outer end of the valve body and seals the threading hole with sealant; the inner front side of the flowmeter is a slope structure.

[0012] Optionally, the middle of the interior of the sampling joint extends downward; an exhaust hole is opened on the upper interior of the sampling joint and passes through the inner wall of the sampling joint; the upper inner edge of the sampling joint is an inclined structure that is narrow at the top and wide at the bottom; a ball convex is fixedly provided on the upper inner wall of the sampling joint, and a float valve limited by the ball convex is slidably provided on the upper inner wall of the sampling joint, and the upper outer portion of the float valve is an inclined structure and matches the interior of the sampling joint.

[0013] Optionally, the top of the auxiliary valve is a convex warehouse structure, in which an airbag valve core is fixedly installed, a pipeline is arranged above the convex warehouse structure and fixedly connected with a one-way valve A, a balloon is connected to the top of the one-way valve A, and a one-way valve B is fixedly installed in the middle of the top of the balloon.

[0014] Optionally, a push-type air release valve and a pressure sensor are also branched and connected in the pipeline between the convex bin structure on the top of the auxiliary valve and the one-way valve A.

[0015] Optionally, a plug plate is fixedly arranged at the rear of the bottom of the auxiliary valve, a filter screen is fixedly arranged in the middle of the plug plate, and the plug plate is located behind the airbag valve core.

[0016] The beneficial effects are as follows:

[0017] 1. The present invention provides a variety of sampling methods. The bottom of the corrugated valve core is lifted by the lever effect. At this time, the bottom of the corrugated valve core is separated from the lower sealing cover, and the liquid passes through the lower sealing cover and the sampling joint into the sampling bottle, and sampling can be performed. The airbag valve core expands downward and blocks the middle of the closed auxiliary valve to stop the flow. After a certain period of stopping the flow, sampling can be performed to obtain a precipitated sample. The operation is convenient and the control is stable.

[0018] 2. The present invention adopts a sampling joint to provide a flow cutoff function, so that excess air in the sampling bottle can be discharged through the exhaust hole. When the air is discharged excessively, the float valve rises due to the buoyancy, blocks the exhaust hole, and achieves sealing. Then, the swing rod is loosened, and the valve core rod automatically drops due to the stress provided by the spring above the fixed plate, and the bottom of the corrugated valve core is attached to the lower sealing cover for sealing to prevent liquid leakage.

[0019] 3. Setting up a filter can provide filtering and sampling functions. The filter is a filter element that has its own filtering effect and can intercept large particles in the liquid. When the liquid flow rate is abnormal, it is necessary to shut down for maintenance. You can choose to remove the plug-in board to replace the filter and analyze the particles intercepted on the surface of the filter. Therefore, the filter is also used as one of the sampling methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the present invention is shown;

[0021] Figure 2 The isometric structural diagram of an embodiment of the present invention is shown;

[0022] Figure 3 A schematic diagram of a three-dimensional cross-sectional structure of an embodiment of the present invention is shown;

[0023] Figure 4 A schematic diagram of a side elevation cross-sectional structure of an embodiment of the present invention is shown;

[0024] Figure 5 A schematic diagram of a side cross-sectional structure of an embodiment of the present invention is shown;

[0025] Figure 6 A schematic diagram of a three-dimensional cross-sectional structure of a sampling joint in an embodiment of the present invention is shown;

[0026] Figure 7 A schematic diagram of a three-dimensional cross-sectional structure of an auxiliary valve in an embodiment of the present invention is shown;

[0027] Figure 8 A schematic diagram of the three-dimensional structure of a flow meter according to an embodiment of the present invention is shown.

[0028] Reference numerals list

[0029] 1. Valve body; 2. Upper sealing cover; 201. Rubber ring; 202. Swing rod; 3. Threaded bracket; 301. Threaded barrel; 302. Valve core rod; 303. Fixed plate; 304. Guide slider; 4. Corrugated valve core; 5. Lower sealing cover; 6. Flow meter; 601. Flow velocity impeller; 7. Sampling connector; 701. Exhaust hole; 702. Ball convex; 703. Float valve; 8. Sampling bottle; 9. Auxiliary valve; 901. Air bag valve core; 902. One-way valve A; 903. Ball bag; 904. One-way valve B; 10. Push-type air release valve; 11. Pressure sensor; 12. Insert plate; 1201. Filter. DETAILED DESCRIPTION

[0030] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention.

[0031] Example 1: Please refer to the attached drawings in the specification. Figures 1 to 8 As shown:

[0032] The present invention provides a quantitative sampling valve for fluorine lining, comprising: a valve body 1, an upper sealing cover 2 is fixedly arranged on the top of the valve body 1, and a lower sealing cover 5 is fixedly arranged on the bottom of the valve body 1; the inner walls of the valve body 1, the upper sealing cover 2 and the lower sealing cover 5 are provided with a fluorine lining layer; a threaded bracket 3 is fixedly arranged on the top of the upper sealing cover 2, a threaded cylinder 301 is connected to the middle thread of the threaded bracket 3, and a valve core rod 302 is slidably arranged in the middle of the threaded cylinder 301; a rubber ring 201 is fixedly arranged in the middle of the top of the upper sealing cover 2, and the valve core rod 302 slides in the rubber ring 201; a fixing sheet 303 is fixedly arranged on the outside of the valve core rod 302, A spring is sleeved between the top of the fixing plate 303 and the upper inner part of the threaded tube 301; a corrugated valve core 4 is fixedly arranged at the bottom of the upper sealing cover 2, the bottom of the corrugated valve core 4 is a conical structure, and the bottom end of the valve core rod 302 is fixedly connected to the lower inner part of the corrugated valve core 4; the top of the lower sealing cover 5 is a conical structure, and the middle of the top of the lower sealing cover 5 is an inverted conical structure and coincides with the bottom of the corrugated valve core 4; a flow meter 6 is fixedly arranged at the inlet of the valve body 1; a sampling connector 7 is fixedly arranged at the bottom of the lower sealing cover 5 through a threaded connection, and a sampling bottle 8 is arranged at the bottom of the sampling connector 7 through a threaded connection; an auxiliary valve 9 is connected to the outlet of the valve body 1.

[0033] A swing rod 202 is fixedly provided on the top of the upper sealing cover 2 , a round convex structure is integrally provided on the lower end of the swing rod 202 , and a handle is provided above the swing rod 202 .

[0034] A guide slider 304 is fixedly provided on the top of the valve core rod 302 , a slide groove structure is integrally provided on the outside of the guide slider 304 , and the convex structure of the swing rod 202 slides in the slide groove structure of the guide slider 304 .

[0035] Among them, a crossbeam is integrally arranged on the inner rear side of the flowmeter 6, and a flow velocity impeller 601 is rotatably arranged at the front end of the crossbeam in cooperation with a waterproof bearing. A line is arranged inside the crossbeam, passes through the outer end of the valve body 1 and seals the threading hole with sealant; the inner front side of the flowmeter 6 is a slope structure.

[0036] Among them, the middle of the interior of the sampling connector 7 extends downward; an exhaust hole 701 is opened on the upper part of the interior of the sampling connector 7 and penetrates the inner wall of the sampling connector 7; the upper edge of the interior of the sampling connector 7 is an inclined structure that is narrow at the top and wide at the bottom; a ball protrusion 702 is fixedly provided on the upper part of the inner wall of the sampling connector 7, and a float valve 703 is slidably provided on the upper part of the inner wall of the sampling connector 7 and is limited by the ball protrusion 702, and the upper part of the outer part of the float valve 703 is an inclined structure and matches the interior of the sampling connector 7.

[0037] Among them, the top of the auxiliary valve 9 is a convex warehouse structure, in which an airbag valve core 901 is fixedly installed, a pipeline is arranged above the convex warehouse structure and a one-way valve A902 is fixedly connected, the top of the one-way valve A902 is connected with a balloon 903, and a one-way valve B904 is fixedly installed in the middle of the top of the balloon 903.

[0038] Among them, a push-type air release valve 10 and a pressure sensor 11 are also branched and connected in the pipeline between the convex bin structure on the top of the auxiliary valve 9 and the one-way valve A902.

[0039] Among them, a plug plate 12 is fixedly arranged at the rear of the bottom of the auxiliary valve 9 , a filter screen 1201 is fixedly arranged in the middle of the plug plate 12 , and the plug plate 12 is located behind the airbag valve core 901 .

[0040] like Figure 1-8 As shown, when sampling the flowing liquid, the valve is connected to the pipeline, and when the liquid passes through the flow meter 6, the flow impeller 601 is driven to rotate, and the flow rate is monitored by the built-in flow sensor of the flow meter 6;

[0041] When sampling is needed, the swing rod 202 is directly rotated, and the guide slider 304 is pulled upward by the lever effect, so that the valve core rod 302 rises synchronously, and the bottom of the corrugated valve core 4 is lifted. At this time, the bottom of the corrugated valve core 4 is separated from the lower sealing cover 5, and the liquid passes through the lower sealing cover 5 and the sampling joint 7 into the sampling bottle 8. The excess air in the sampling bottle 8 is discharged through the exhaust hole 701. When the air is discharged excessively, the float valve 703 rises due to the buoyancy, and the exhaust hole 701 is blocked to achieve sealing. Then the swing rod 202 is released, and the valve core rod 302 automatically drops by the stress provided by the spring above the fixing plate 303, and the bottom of the corrugated valve core 4 is attached to the lower sealing cover 5 for blocking.

[0042] Then take out the sampling bottle 8 and seal it with the bottle cap.

[0043] Example 2: On the basis of Example 1, when sediment sampling is required, the balloon 903 is manually pressed to input the air in the balloon 903 into the balloon valve core 901 through the one-way valve A902, and the balloon valve core 901 is opened. The balloon valve core 901 expands downward and blocks the middle of the closed auxiliary valve 9, and the flow can be stopped; the filter 1201 can support the balloon valve core 901 to provide support force;

[0044] The pressing balloon 903 is made of elastic rubber material and can be automatically reset;

[0045] Subsequently, the airbag valve core 901 can be automatically reset by opening the push-type deflation valve 10 to release air.

[0046] Embodiment 3: Based on Embodiment 2, the filter screen 1201 can carry the airbag valve core 901 to provide support force, and the filter screen 1201 is a filter element, which has a filtering effect and can intercept large particles in the liquid;

[0047] When the liquid flow rate is abnormal and maintenance is required, the machine may be shut down for maintenance. The plug plate 12 may be removed to replace the filter screen 1201 and the particles intercepted on the surface of the filter screen 1201 may be analyzed. Therefore, the filter screen 1201 is also used as a sampling method.

[0048] Specific usage and function of this embodiment: In the present invention, the valve is connected to the pipeline, and when the liquid passes through the flow meter 6, the flow impeller 601 is driven to rotate, and the flow rate is monitored by the built-in flow sensor of the flow meter 6;

[0049] When sampling is needed, the swing rod 202 is directly rotated, and the guide slider 304 is pulled upward by the lever effect, so that the valve core rod 302 rises synchronously, and the bottom of the corrugated valve core 4 is lifted. At this time, the bottom of the corrugated valve core 4 is separated from the lower sealing cover 5, and the liquid passes through the lower sealing cover 5 and the sampling joint 7 into the sampling bottle 8. The excess air in the sampling bottle 8 is discharged through the exhaust hole 701. When the air is discharged excessively, the float valve 703 rises due to the buoyancy, and the exhaust hole 701 is blocked to achieve sealing. Then the swing rod 202 is released, and the valve core rod 302 automatically drops by the stress provided by the spring above the fixing plate 303, and the bottom of the corrugated valve core 4 is attached to the lower sealing cover 5 for blocking.

[0050] Then remove the sampling bottle 8 and seal it with the bottle cap;

[0051] The above method is used to sample the flowing liquid. When sedimentation sampling is required, the auxiliary valve 9 can be closed;

[0052] Manually press the balloon 903, and input the air in the balloon 903 into the balloon valve core 901 through the one-way valve A902, so as to expand the balloon valve core 901 downward and block the middle of the closed auxiliary valve 9, thus stopping the flow; the filter 1201 can support the balloon valve core 901 and provide support force;

[0053] In addition, the filter 1201 is a filter element, which has its own filtering effect and can intercept large particles in the liquid. When the liquid flow rate is abnormal and maintenance is required, you can choose to remove the plug plate 12 to replace the filter 1201 and analyze the particles intercepted on the surface of the filter 1201. Therefore, the filter 1201 is also used as one of the sampling methods.

Claims

1. A quantitative sampling valve for fluorine lining, characterized in that: include: A valve body (1), wherein an upper sealing cover (2) is fixedly provided on the top of the valve body (1), and a lower sealing cover (5) is fixedly provided on the bottom of the valve body (1); the inner walls of the valve body (1), the upper sealing cover (2) and the lower sealing cover (5) are provided with a fluorine lining layer; a threaded bracket (3) is fixedly provided on the top of the upper sealing cover (2), a threaded cylinder (301) is connected to the middle thread of the threaded bracket (3), and a valve core rod (302) is slidably provided in the middle of the threaded cylinder (301); a rubber ring (201) is fixedly provided in the middle of the top of the upper sealing cover (2), and the valve core rod (302) slides in the rubber ring (201); a fixing plate (303) is fixedly provided on the outside of the valve core rod (302), and the fixing plate (303) is fixedly provided on the top of the valve core rod (302). A spring is sleeved between the upper part and the inner upper part of the threaded cylinder (301); a corrugated valve core (4) is fixedly arranged at the bottom of the upper sealing cover (2); the bottom of the corrugated valve core (4) is a conical structure, and the bottom end of the valve core rod (302) is fixedly connected to the inner lower part of the corrugated valve core (4); the top of the lower sealing cover (5) is a conical structure, and the middle of the top of the lower sealing cover (5) is an inverse conical structure and matches the bottom of the corrugated valve core (4); a flow meter (6) is fixedly arranged at the inlet of the valve body (1); a sampling joint (7) is fixedly arranged at the bottom of the lower sealing cover (5) through a threaded connection, and a sampling bottle (8) is arranged at the bottom of the sampling joint (7) through a threaded connection; and an auxiliary valve (9) is connected to the outlet of the valve body (1).

2. A quantitative sampling valve for fluorine lining as claimed in claim 1, characterized in that: A swing rod (202) is fixedly provided on the top of the upper sealing cover (2), a round convex structure is integrally provided on the lower end of the swing rod (202), and a handle is provided above the swing rod (202).

3. A quantitative sampling valve for fluorine lining as claimed in claim 2, characterized in that: A guide slider (304) is fixedly provided on the top of the valve core rod (302), a slide groove structure is integrally provided on the outside of the guide slider (304), and the round convex structure of the swing rod (202) slides in the slide groove structure of the guide slider (304).

4. A quantitative sampling valve for fluorine lining as claimed in claim 1, characterized in that: The internal rear side of the flow meter (6) is integrally provided with a crossbeam, the front end of the crossbeam is rotatably provided with a flow velocity impeller (601) in cooperation with a waterproof bearing, a line is provided inside the crossbeam, passes through the outer end of the valve body (1) and is sealed through a threading hole by a sealant; the internal front side of the flow meter (6) is a sloped structure.

5. A quantitative sampling valve for fluorine lining as claimed in claim 1, characterized in that: The middle of the interior of the sampling joint (7) extends downward; an exhaust hole (701) is provided at the upper interior of the sampling joint (7) and penetrates the inner wall of the sampling joint (7); the upper interior edge of the sampling joint (7) is an inclined surface structure that is narrow at the top and wide at the bottom; a ball protrusion (702) is fixedly provided at the upper interior wall of the sampling joint (7); a float valve (703) is slidably provided at the upper interior wall of the sampling joint (7) and is limited by the ball protrusion (702); the upper exterior of the float valve (703) is an inclined surface structure and matches the interior of the sampling joint (7).

6. A quantitative sampling valve for fluorine lining as claimed in claim 1, characterized in that: The top of the auxiliary valve (9) is a convex chamber structure, in which an airbag valve core (901) is fixedly arranged, a pipeline is arranged above the convex chamber structure and is fixedly connected to a one-way valve A (902), a ball balloon (903) is connected to the top of the one-way valve A (902), and a one-way valve B (904) is fixedly arranged in the middle of the top of the ball balloon (903).

7. A quantitative sampling valve for fluorine lining as claimed in claim 6, characterized in that: A push-type air release valve (10) and a pressure sensor (11) are also connected to a branch in the pipeline between the convex bin structure at the top of the auxiliary valve (9) and the one-way valve A (902).

8. A quantitative sampling valve for fluorine lining as claimed in claim 6, characterized in that: A plug plate (12) is fixedly arranged at the rear of the bottom of the auxiliary valve (9), a filter screen (1201) is fixedly arranged in the middle of the plug plate (12), and the plug plate (12) is located behind the airbag valve core (901).

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