A quantitative sampling valve for lining fluorine

Abstract

The application provides a fluorine-lined quantitative sampling valve, and relates to the technical field of valves.The valve body is provided with an upper sealing cover fixedly arranged at the top of the valve body and a lower sealing cover fixedly arranged at the bottom of the valve body;the inner walls of the valve body, the upper sealing cover and the lower sealing cover are provided with fluorine lining;the top of the upper sealing cover is fixedly provided with a threaded support, a threaded sleeve is threadedly connected to the middle of the threaded support, and a valve core rod is slidably arranged in the middle of the threaded sleeve;the application provides multiple sampling modes;the bottom of the corrugated valve core is lifted through the lever effect, at this time, the bottom of the corrugated valve core is separated from the lower sealing cover, liquid passes through the lower sealing cover and the sampling connector to enter the sampling bottle, sampling can be performed, the air bag valve core is inflated downward to block the middle of the closed auxiliary valve, flow can be stopped, after a certain period of time, sampling can be performed, and the precipitated sample can be obtained, the operation is convenient and stable, and the problem that the existing valve lacks a multi-mode sampling function is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valves, in particular to a fluorine-lined quantitative sampling valve. BACKGROUND

[0002] The fluorine-lined pipeline has excellent temperature resistance and corrosion resistance, is applied in the field of chemical processing and the like, and is used for conveying liquid corrosive to metal. By lining fluorine, the liquid can be prevented from contacting metal to cause corrosion of the pipeline or some chemical reactions to reduce the strength of the valve.

[0003] The currently used sampling valve has the following shortcomings:

[0004] 1. The sampling valve only samples the liquid in flow, has poor sampling effect, and is inconvenient for detecting whether the composition of the liquid in the flow limiting or static state changes, and lacks sampling effect in multiple states;

[0005] 2. When sealing sampling, the sampling valve lacks a stable and safe exhaust cut-off structure, and is inconvenient for only exhausting gas to block liquid;

[0006] 3. The sampling valve only directly takes liquid and cannot obtain large particles generated by precipitation or flow, and lacks a filtering sampling function. SUMMARY

[0007] In view of the above, the present application provides a fluorine-lined quantitative sampling valve.

[0008] The present application provides a fluorine-lined quantitative sampling valve, which specifically comprises: a valve body, an upper sealing cover fixedly arranged at the top of the valve body, and a lower sealing cover fixedly arranged at the bottom of the valve body; a fluorine lining layer arranged on the inner walls of the valve body, the upper sealing cover and the lower sealing cover; a threaded support fixedly arranged at the top of the upper sealing cover, a threaded cylinder threadedly connected in the middle of the threaded support, and a valve core rod slidingly arranged in the middle of the threaded cylinder; a rubber ring fixedly arranged at the top of the upper sealing cover, the valve core rod sliding in the rubber ring; a fixed sheet fixedly arranged on the outer portion of the valve core rod, a spring sleeved between the top of the fixed sheet and the upper portion of the inner portion of the threaded cylinder; a corrugated valve core fixedly arranged at the bottom of the upper sealing cover, the bottom of the corrugated valve core being in a conical structure, and the bottom end of the valve core rod being fixedly connected to the lower portion of the inner portion of the corrugated valve core; the top of the lower sealing cover being in a conical structure, the top of the lower sealing cover being in an inverse conical structure and matching the bottom of the corrugated valve core; a flowmeter fixedly arranged at the inlet of the valve body; a sampling connector fixedly arranged at the bottom of the lower sealing cover through threaded connection, and a sampling bottle arranged at the bottom of the sampling connector through threaded connection; and a secondary valve connected to the outlet of the valve body.

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

[0010] Optionally, the top of the valve core rod is fixedly provided with a guide sliding block, and the outer part of the guide sliding block is integrally provided with a sliding groove structure, and the round convex structure of the swing rod slides in the sliding groove structure of the guide sliding block.

[0011] Optionally, the inner rear side of the flowmeter is integrally provided with a crossbeam, the front end of the crossbeam is rotatably provided with a flow vane through cooperation with a waterproof bearing, and the inside of the crossbeam is provided with a wire hole through which the wire is led out of the valve body and sealed through a sealing glue; the inner front side of the flowmeter is a slope structure.

[0012] Optionally, the sampling connector internally extends downward at the middle part; the sampling connector is internally provided with an exhaust hole penetrating through the inner wall of the sampling connector at the upper part; the upper edge of the inner part of the sampling connector is a slope structure with a narrow upper part and a wide lower part; the inner wall of the sampling connector is fixedly provided with a ball convex at the upper part; the inner wall of the sampling connector is slidably provided with a float valve limited by the ball convex at the upper part; and the outer upper part of the float valve is a slope structure and is consistent with the inner part of the sampling connector.

[0013] Optionally, the top of the auxiliary valve is a convex structure, the convex structure is fixedly provided with an air bag valve core, a pipeline fixedly connected with a one-way valve A is arranged above the convex structure, a ball bladder is connected and arranged at the top of the one-way valve A, and a one-way valve B is fixedly arranged at the top middle part of the ball bladder.

[0014] Optionally, the pipeline between the convex structure at the top of the auxiliary valve and the one-way valve A is further branch-connected with a pressing type air release valve and a pressure sensor.

[0015] Optionally, the bottom rear side of the auxiliary valve is fixedly provided with a plug plate, the middle part of the plug plate is fixedly provided with a filter screen, and the plug plate is located behind the air bag valve core.

[0016] Beneficial effects are as follows:

[0017] 1. The present application provides a plurality of sampling modes, the bottom of the corrugated valve core is lifted through the lever effect, at this time, the bottom of the corrugated valve core is separated from the lower sealing cover, liquid passes through the lower sealing cover and the sampling connector to enter the sampling bottle, sampling can be performed, the air bag valve core expands downward and blocks the middle part of the closed auxiliary valve, flow can be stopped, after a certain time of stopping flow, the sample of the precipitate can be obtained, and the operation is convenient and stable.

[0018] 2. The present application adopts the sampling connector to provide the function of intercepting flow, so that the excess air in the sampling bottle can be discharged through the exhaust hole, when the air is discharged in excess, the float valve is lifted due to the influence of the buoyancy, the exhaust hole is blocked, sealing is realized, then the swing rod is loosened, the valve core rod automatically descends through the stress provided by the spring above the fixed sheet, the bottom of the corrugated valve core is attached to the lower sealing cover for blocking, and liquid leakage is avoided.

[0019] 3, set filter screen, can provide filter sampling function, filter screen is filter element, itself has filtering effect, can intercept large particles in liquid, when liquid flow rate is abnormal, need to stop machine maintenance, can choose to disassemble plugboard to replace filter screen, and analyze the particles intercepted on the surface of filter screen, so filter screen also serves as one of sampling methods. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The three-dimensional structural schematic diagram of the embodiment in the application is shown;

[0021] Figure 2 The axonometric structural schematic diagram of the embodiment in the application is shown;

[0022] Figure 3 The three-dimensional sectional structural schematic diagram of the embodiment in the application is shown;

[0023] Figure 4 The side elevation sectional structural schematic diagram of the embodiment in the application is shown;

[0024] Figure 5 The side sectional structural schematic diagram of the embodiment in the application is shown;

[0025] Figure 6 The three-dimensional sectional structural schematic diagram of the sampling joint of the embodiment in the application is shown;

[0026] Figure 7 The three-dimensional sectional structural schematic diagram of the auxiliary valve of the embodiment in the application is shown;

[0027] Figure 8 The three-dimensional structural schematic diagram of the flowmeter of the embodiment in the application is shown.

[0028] LIST OF REFERENCE NUMERALS

[0029] 1, valve body; 2, upper sealing cover; 201, rubber ring; 202, swing rod; 3, threaded support; 301, threaded cylinder; 302, valve core rod; 303, fixed plate; 304, guide sliding block; 4, corrugated valve core; 5, lower sealing cover; 6, flowmeter; 601, flow rate impeller; 7, sampling joint; 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 balloon; 904, one-way valve B; 10, press type air release valve; 11, pressure sensor; 12, plugboard; 1201, filter screen. DETAILED DESCRIPTION

[0030] In order to make the purpose, scheme and advantages of the technical scheme of the application more clear, the technical scheme of the embodiment of the application will be described clearly and completely in the following with reference to the drawings of the specific embodiment of the application.

[0031] Embodiment 1: Please refer to the drawings in the specification, Figures 1 to 8 as shown:

[0032] The present application provides a kind of quantitative sampling valve for lining fluorine, including: valve body 1, the top of valve body 1 is fixedly provided with upper sealing cover 2, the bottom of valve body 1 is fixedly provided with lower sealing cover 5;The inner wall of valve body 1, upper sealing cover 2 and lower sealing cover 5 is provided with fluorine lining layer;The top of upper sealing cover 2 is fixedly provided with threaded support 3, the middle of threaded support 3 is threadedly connected with threaded cylinder 301, and the middle of threaded cylinder 301 is slidably provided with valve core rod 302;The top of upper sealing cover 2 is fixedly provided with rubber ring 201 in the middle, and valve core rod 302 slides in rubber ring 201;The outside of valve core rod 302 is fixedly provided with fixed sheet 303, and the top of fixed sheet 303 is connected with the inside upper side of threaded cylinder 301 between spring;The bottom of upper sealing cover 2 is fixedly provided with corrugated valve core 4, and the bottom of corrugated valve core 4 is conical structure, and the bottom end of valve core rod 302 is fixedly connected with the inside lower side of corrugated valve core 4;The top of lower sealing cover 5 is conical structure, and the top middle of lower sealing cover 5 is reverse conical structure and is consistent with the bottom of corrugated valve core 4;The inlet of valve body 1 is fixedly provided with flowmeter 6 inside;The bottom of lower sealing cover 5 is fixedly provided with sampling connector 7 by thread connection, and the bottom of sampling connector 7 is provided with sampling bottle 8 by thread connection;The outlet of valve body 1 is connected and provided with auxiliary valve 9.

[0033] Wherein, the top of upper sealing cover 2 is fixedly provided with swing rod 202, the lower end of swing rod 202 is integrally provided with round convex structure, and the upper side of swing rod 202 is provided with handle.

[0034] Wherein, the top of valve core rod 302 is fixedly provided with guide sliding block 304, the outside of guide sliding block 304 is integrally provided with sliding groove structure, and the round convex structure of swing rod 202 slides in the sliding groove structure of guide sliding block 304.

[0035] Wherein, the inside rear side of flowmeter 6 is integrally provided with crossbeam, the front end of crossbeam is rotatably provided with flow speed impeller 601 in cooperation with waterproof bearing, and the inside of crossbeam is provided with line that passes out the outer end of valve body 1 and is sealed through sealing glue sealing hole;The inside front side of flowmeter 6 is inclined plane structure.

[0036] Wherein, the inside middle of sampling connector 7 extends downward;Exhaust hole 701 is formed in the inner wall of sampling connector 7 and penetrates the inside upper side of sampling connector 7;The inside upper side edge of sampling connector 7 is inclined plane structure with upper narrow and lower wide;Ball convex 702 is fixedly arranged on the inner wall of sampling connector 7, and float valve 703 is slidably arranged on the inner wall of sampling connector 7 and is limited by ball convex 702, and the outside upper side of float valve 703 is inclined plane structure and is consistent with the inside of sampling connector 7.

[0037] Wherein, the top of the sub-valve 9 is a convex structure, the convex structure is fixedly provided with an air bag valve core 901, a pipeline fixedly connected with a one-way valve A 902 is arranged above the convex structure, a ballon 903 is connected at the top of the one-way valve A 902, and a one-way valve B 904 is fixedly arranged at the top of the ballon 903.

[0038] Wherein, the pipeline between the top of the convex structure of the sub-valve 9 and the one-way valve A 902 is further branch connected with a pressurized air release valve 10 and a pressure sensor 11.

[0039] Wherein, the bottom of the sub-valve 9 is fixedly provided with an insert plate 12, and a filter screen 1201 is fixedly arranged in the middle of the insert plate 12, and the insert plate 12 is located behind the air bag valve core 901.

[0040] As shown in the drawings, Figures 1-8 When sampling the flowing liquid, the valve is connected in the pipeline, and when the liquid passes through the flowmeter 6, the flowmeter 6 drives the flowmeter impeller 601 to rotate, and the flow rate is monitored by the flow rate sensor built in the flowmeter 6.

[0041] When sampling is needed, the swing rod 202 is directly rotated, the guide sliding block 304 is pulled upward through the lever effect, the valve core rod 302 is synchronously lifted, 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, the liquid passes through the lower sealing cover 5 and the sampling connector 7 into the sampling bottle 8, the excess air in the sampling bottle 8 passes through the air vent hole 701 and is discharged, when the air is discharged in excess, the float valve 703 is lifted due to the influence of the buoyancy, the air vent hole 701 is blocked, the sealing is realized, then the swing rod 202 is loosened, the valve core rod 302 is automatically lowered through the stress provided by the spring above the fixed sheet 303, the bottom of the corrugated valve core 4 is attached to the lower sealing cover 5 for blocking.

[0042] Then the sampling bottle 8 is removed and sealed with the bottle cap.

[0043] In example 2, on the basis of example 1, when sediment sampling is needed, the ballon 903 is manually pressed, the air in the ballon 903 passes through the one-way valve A 902 and enters the air bag valve core 901, the air bag valve core 901 is expanded and the middle of the sub-valve 9 is blocked, that is, the flow is stopped; the filter screen 1201 can bear the support force provided by the air bag valve core 901.

[0044] The pressurized air release valve 10 is made of elastic rubber material and can automatically reset;

[0045] Subsequently, the pressurized air release valve 10 is opened to release the air, so that the air bag valve core 901 is automatically reset.

[0046] The filter screen 1201 can bear the air bag valve core 901 to provide support force, and the filter screen 1201 is a filtering piece and has filtering effect itself, and can intercept large particles in the liquid.

[0047] When the liquid flow rate is abnormal, maintenance is needed, the filter screen 1201 can be replaced by disassembling the plug-in plate 12, and the particles intercepted on the surface of the filter screen 1201 are analyzed, so that the filter screen 1201 also serves as one of the sampling modes.

[0048] The specific use mode and effect of the embodiment are as follows: in the application, the valve is connected in the pipeline, and when the liquid passes through the flowmeter 6, the flow rate impeller 601 is driven to rotate, and the flow rate is monitored through the flow rate sensor built in the flowmeter 6.

[0049] When sampling is needed, the swing rod 202 is directly rotated, the guide sliding block 304 is pulled upward through the lever effect, the valve core rod 302 is synchronously lifted, 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, the liquid passes through the lower sealing cover 5 and the sampling connector 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 in excess, the float valve 703 is lifted due to the influence of the buoyancy, the exhaust hole 701 is blocked, sealing is realized, then the swing rod 202 is loosened, the valve core rod 302 is automatically lowered through the stress provided by the spring above the fixing sheet 303, the bottom of the corrugated valve core 4 is attached to the lower sealing cover 5 for blocking.

[0050] Then the sampling bottle 8 is taken off and sealed with a bottle cap.

[0051] The above mode is used for sampling the flowing liquid, and when sediment sampling is needed, the auxiliary valve 9 can be closed.

[0052] The balloon 903 is manually pressed, the air in the balloon 903 is input into the air bag valve core 901 through the one-way valve A 902, the air bag valve core 901 is expanded, the air bag valve core 901 is downwardly expanded and blocks the middle of the auxiliary valve 9, and the flow is stopped; the filter screen 1201 can bear the air bag valve core 901 to provide support force.

[0053] The filter screen 1201 is a filtering piece and has filtering effect itself, and can intercept large particles in the liquid, when the liquid flow rate is abnormal, maintenance is needed, the filter screen 1201 can be replaced by disassembling the plug-in plate 12, and the particles intercepted on the surface of the filter screen 1201 are analyzed, so that the filter screen 1201 also serves as one of the sampling modes.

Claims

1. A fluorine-lined quantitative sampling valve, characterized in that, It comprises: a valve body (1), the top of the valve body (1) is fixedly provided with an upper sealing cover (2), the bottom of the valve body (1) is fixedly provided with a lower sealing cover (5); 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; the top of the upper sealing cover (2) is fixedly provided with a threaded support (3), the middle of the threaded support (3) is threadedly connected with a threaded cylinder (301), the middle of the threaded cylinder (301) is slidably provided with a valve core rod (302); the top of the upper sealing cover (2) is fixedly provided with a rubber ring (201) in the middle, the valve core rod (302) slides in the rubber ring (201); the outer part of the valve core rod (302) is fixedly provided with a fixed sheet (303), the top of the fixed sheet (303) is sleeved with a spring between the inner part of the threaded cylinder (301) and the upper part of the inner part of the threaded cylinder (301); the bottom of the upper sealing cover (2) is fixedly provided with a corrugated valve core (4), the bottom of the corrugated valve core (4) is a tapered structure, the bottom end of the valve core rod (302) is fixedly connected with the inner lower part of the corrugated valve core (4); the top of the lower sealing cover (5) is a tapered structure, the top middle of the lower sealing cover (5) is a reverse tapered structure and matches the bottom of the corrugated valve core (4); a flowmeter (6) is fixedly arranged in the inlet of the valve body (1); the bottom of the lower sealing cover (5) is fixedly provided with a sampling connector (7) through threaded connection, the bottom of the sampling connector (7) is provided with a sampling bottle (8) through threaded connection; a secondary valve (9) is connected and arranged at the outlet of the valve body (1), the top of the upper sealing cover (2) is fixedly provided with a swing rod (202), the lower end of the swing rod (202) is integrally provided with a round convex structure, the upper part of the swing rod (202) is provided with a handle, the top of the valve core rod (302) is fixedly provided with a guide sliding block (304), the outer part of the guide sliding block (304) is integrally provided with a sliding groove structure, the round convex structure of the swing rod (202) slides in the sliding groove structure of the guide sliding block (304), the inner rear side of the flowmeter (6) is integrally provided with a crossbeam, the front end of the crossbeam is rotatably provided with a flowmeter impeller (601) matched with a waterproof bearing, the inside of the crossbeam is provided with a wire line which passes out of the outer end of the valve body (1) and is sealed through a sealing rubber; the inner front side of the flowmeter (6) is a bevel structure, the inner middle of the sampling connector (7) extends downward; the inner upper part of the sampling connector (7) is provided with an exhaust hole (701) penetrating through the inner wall of the sampling connector (7); the inner upper edge of the sampling connector (7) is a bevel structure with a narrow upper part and a wide lower part; the inner upper part of the sampling connector (7) is fixedly provided with a ball convex (702), the inner upper part of the sampling connector (7) is slidably provided with a float valve (703) limited by the ball convex (702), the outer upper part of the float valve (703) is a bevel structure and matches the inner part of the sampling connector (7), The top of the auxiliary valve (9) is a convex structure, the convex structure is fixedly provided with an air bag valve core (901), a one-way valve A (902) is fixedly connected on the top of the convex structure, a ballon (903) is connected on the top of the one-way valve A (902), a one-way valve B (904) is fixedly arranged on the top of the ballon (903), The pipeline between the top of the convex structure of the auxiliary valve (9) and the one-way valve A (902) is further branch connected with a pressing type air release valve (10) and a pressure sensor (11), The bottom of the auxiliary valve (9) is fixedly provided with an insertion plate (12), the middle of the insertion plate (12) is fixedly provided with a filter screen (1201), and the insertion plate (12) is located behind the air bag valve core (901).

Images