CN107061786B - Corrosion-resistant diaphragm valve - Google Patents
Corrosion-resistant diaphragm valve Download PDFInfo
- Publication number
- CN107061786B CN107061786B CN201710031495.8A CN201710031495A CN107061786B CN 107061786 B CN107061786 B CN 107061786B CN 201710031495 A CN201710031495 A CN 201710031495A CN 107061786 B CN107061786 B CN 107061786B
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- valve
- diaphragm
- piston
- valve cover
- valve body
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
- F16K7/17—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0236—Diaphragm cut-off apparatus
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Valve Housings (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a corrosion-resistant diaphragm valve, which is divided into a manual diaphragm valve and a pneumatic diaphragm valve, and comprises a valve body and a valve cover, wherein a diaphragm is sleeved in a space surrounded by the valve body and the valve cover, the diaphragm is connected with a piston or a valve rod, the upper end and the lower end of the piston or the valve rod are respectively and hermetically connected with the valve cover and the valve body, and all parts in the diaphragm valve are all plastic parts. The invention solves the problems of weak corrosion resistance, complex internal structure, influence of the weir-shaped flow passage on the fluid, compact structure, unattractive appearance and the like of the external mechanism of the diaphragm valve, and has strong corrosion resistance, compact overall structure and attractive appearance.
Description
Technical Field
The invention relates to a diaphragm valve, in particular to a corrosion-resistant diaphragm valve of an all-plastic part.
Background
Diaphragm valves are often used in the fields of gases, water containing particles and impurities, and acid-base chemicals to separate the interior of the valve body from the drive components, in these fields, the isolated media tend to be corrosive, traditional metal valves are susceptible to corrosion, the flange-type structure of the external valve body and valve cover, the split design of the external valve body and valve cover uses metal locking pieces, the corrosion resistance is not strong, and the external structural components are prone to aging to cause leakage; the diaphragm valve with the pneumatic actuating mechanism has the advantages of complex internal structure, more parts, easy corrosion of parts by adopting metal parts, high failure rate, short service life of the valve and high maintenance cost. In addition, the traditional structure uses flange formula bolted connection for disk seat and actuating mechanism, and the design of cylinder 2 slice formula components of a whole that can function independently uses bolted connection, and the volume is heavy, and is unsightly, occupies installation space, and is not compact.
The defects are worth solving.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the corrosion-resistant diaphragm valve, which solves the problems of weak corrosion resistance, complex internal structure, influence of a weir-shaped flow passage on fluid, incompact structure, unattractive appearance and the like of an external mechanism of the diaphragm valve, and has strong corrosion resistance and compact and attractive overall structure.
The technical scheme of the invention is as follows:
the utility model provides a corrosion-resistant diaphragm valve, its characterized in that, includes valve body and valve gap, the valve gap top is equipped with the hand wheel, the valve body with the space endotheca that the valve gap encloses has the diaphragm, diaphragm top is equipped with the valve rod, the upper and lower both sides of valve rod are equipped with valve rod axostylus axostyle and lower valve rod axostyle respectively, lower valve rod axostylus axostyle pass the diaphragm briquetting with the diaphragm is connected, the valve rod top is equipped with fixed support piece, go up the valve rod axostylus axostyle pass in proper order fixed support piece the valve gap with the hand wheel is connected, each part is all plastic in the diaphragm valve.
The invention according to the above-mentioned aspect is characterized in that the valve body and the valve cover are detachably connected.
Further, the internal thread at the bottom of the valve cover is connected and locked with the external thread at the upper part of the valve body.
Further, the external thread section of the upper part of the valve body is trapezoid.
The invention according to the above scheme is characterized in that the valve body is of a cylindrical structure with a medium flow passage inside.
Furthermore, the lower side frame of the runner is duckbill-shaped.
According to the scheme, the diaphragm is characterized in that the upper side of the diaphragm is provided with the protruding embedded screw, the upper side of the embedded screw is provided with external threads, the lower side of the lower piston shaft rod is provided with internal threads, and the lower piston shaft rod sequentially penetrates through the fixed supporting block and the diaphragm pressing block to be in spiral connection with the embedded screw.
The invention according to the scheme is characterized in that the piston is in sealing connection with the valve cover and the fixed supporting block.
Further, a piston sealing ring is arranged between the piston and the inner side of the valve cover, an upper positioning sealing ring is arranged between the upper piston shaft rod and the valve cover through hole, and a lower positioning sealing ring is arranged between the lower piston shaft rod and the fixed supporting block.
Furthermore, the piston sealing ring is sleeved in a piston concave ring on the side surface of the piston, the upper positioning sealing ring is arranged in an upper piston shaft rod concave ring on the upper piston shaft rod, and the lower positioning sealing ring is arranged in a lower piston shaft rod concave ring of the lower piston shaft rod.
According to the scheme, the diaphragm is characterized in that the upper side of the diaphragm is provided with a protruding embedded screw, the upper side of the embedded screw is provided with external threads, the lower side of the lower valve rod shaft lever is provided with internal threads, and the lower piston shaft lever passes through the diaphragm pressing block to be in spiral connection with the embedded screw.
According to the scheme, the invention is characterized in that the top end of the upper valve rod shaft lever is provided with external threads, the hand wheel through hole of the hand wheel is provided with internal threads, and the top end of the upper valve rod shaft lever sequentially penetrates through the fixed supporting block, the valve cover and the hand wheel in a threaded connection.
According to the scheme, the invention is characterized in that the middle part of the upper valve rod shaft lever is provided with an upper valve rod shaft lever concave ring, an upper positioning sealing ring is arranged in the upper valve rod shaft lever concave ring, and the upper valve rod shaft lever is in sealing connection with the fixed supporting block through the upper positioning sealing ring.
According to the scheme, the invention has the beneficial effects that the full plastic part is realized inside the invention, the corrosion of corrosive gas entering the inside through the exhaust port to metal parts in severe environment is eliminated, and the service life of an actuating mechanism is greatly improved; the invention reduces the number of accessories and the cost, eliminates the corrosion failure rate of the exposed metal parts, can ensure the compactness and the integration of the appearance of the valve, is beautiful, and reduces the spare part cost and the assembly cost.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 3 is a side cross-sectional view of the valve body of the present invention.
Fig. 4 is a top cross-sectional view of the valve body of the present invention.
In the figure, 10, valve body; 10', a valve body; 11. trapezoidal threads; 11', trapezoidal threads; 12. a flow passage; 12', flow channels; 20. a valve cover; 21. an air inlet hole; 22. an exhaust hole; 20', a valve cover; 30. a diaphragm sheet; 30', membrane sheets; 31. embedding a screw; 31', pre-buried screws; 40. pressing a membrane block; 40', membrane press block; 50. fixing the supporting block; 50', a fixed support block; 60. a piston; 60', valve stem; 61. an upper piston shaft; 61', upper stem shaft; 62. a lower piston shaft; 62', lower stem shaft; 63. an upper piston shaft lever concave ring; 64. a lower piston shaft lever concave ring; 65. a piston concave ring; 71. a piston seal ring; 72. an upper positioning sealing ring; 72', upper positioning sealing ring; 73. a lower positioning sealing ring; 80. a spring; 80', hand wheel.
Detailed Description
The invention is further described below with reference to the drawings and embodiments:
example 1
As shown in FIG. 1, the corrosion-resistant diaphragm valve comprises a valve body 10 and a valve cover 20, wherein a cavity is formed in the top of the valve body 10, and a pneumatic executing device is arranged on the valve cover 20.
A diaphragm sheet 30 is sleeved in a space surrounded by the valve body 10 and the valve cover 20, the upper part of the diaphragm sheet 30 is fixed through a fixed supporting block 50, and a diaphragm pressing block 40 is arranged between the diaphragm sheet 30 and the fixed supporting block 50.
The piston 60 is arranged above the fixed support block 50, an upper piston shaft rod 61 and a lower piston shaft rod 62 are respectively arranged on the upper side and the lower side of the piston 60, the lower side of the lower piston shaft rod 62 sequentially penetrates through the fixed support block 50, the diaphragm pressing block 40 and the diaphragm 30 to be connected, the spring 80 is arranged above the piston 60, and the upper side of the upper piston shaft rod 61 penetrates through the spring 80 and penetrates out of a valve cover through hole at the top end of the valve cover 20.
The diaphragm 30 upside is equipped with protruding pre-buried screw 31, and pre-buried screw 31 upside is equipped with the external screw thread, and lower piston axostylus axostyle 62 downside is equipped with the internal screw thread, and lower piston axostylus axostyle 62 passes fixed support piece 50, diaphragm briquetting 40 and pre-buried screw 31 screwed connection in proper order.
The fixed support block 50, the piston 60, the spring 80 and the valve cover 20 are connected to form a pneumatic actuator, and the valve cover 20 is provided with an air inlet 21 and an air outlet 22 to form air inlet and air outlet of the whole pneumatic actuator.
The piston 60 is in sealing connection with the valve cover 20 and the fixed supporting block 50. Specifically, a piston sealing ring 71 is disposed between the piston 60 and the inner side of the valve cover 20, an upper positioning sealing ring 72 is disposed between the upper piston shaft 61 and the valve cover through hole, and a lower positioning sealing ring 73 is disposed between the lower piston shaft 62 and the fixed supporting block 50. The piston seal 71 is sleeved in the piston concave ring 65 on the side of the piston 60, the upper positioning seal 72 is arranged in the upper piston shaft rod concave ring 63 on the upper piston shaft rod 61, and the lower positioning seal 73 is arranged in the lower piston shaft rod concave ring 64 of the lower piston shaft rod 62.
All parts in the diaphragm valve are all plastic parts. The valve cover 20 is molded by using GF (glass fiber) mixed with 30% of anti-corrosion PP (polypropylene) plastic, and the mechanical strength can reach the maximum pressure 8Kg/cm < 2 > standard of the cylinder; to ensure mechanical strength, the fixed support block 50 and the piston 60 are injection molded by using corrosion-proof PP (polypropylene) plastic mixed with 30% GF (glass fiber); the spring 80 can adopt a plastic coating process, and plastic spraying treatment is carried out on the surface of the spring 80, so that the problem of full plastic corrosion resistance of valve materials is solved; the piston seal ring 71, the upper positioning seal ring 72 and the lower positioning seal ring 73 are expanded and deformed by friction heating when the actuating mechanism acts, and FPM (fluororubber) is adopted to prolong the service life and reduce mechanical faults caused by deformation; the diaphragm sheet 30 is made of a high elastic polymer material having reversible deformation, and is made of EPDM (ethylene propylene diene monomer), FPM (fluororubber) or a composite membrane with PTFE (polytetrafluoroethylene) according to the medium characteristics; the contact surface of the diaphragm pressing block 40 and the diaphragm 30 is matched with the sealing surface of the valve body 10. The injection molding process adopts a standard injection molding process in machining.
The plastic diaphragm valve with a brand new structure and the valve body made of the overcurrent material can be applied to strong corrosion and ultra-pure systems, such as UPVC, CPVC, PP, PVDF, PTFE, PFA. The invention reduces the number and cost of accessories and eliminates the failure rate of exposed metal parts corroded.
Example two
As shown in fig. 2, a corrosion resistant diaphragm valve comprises a valve body 10 'and a valve cover 20', wherein a hand wheel 80 'is arranged above the valve cover 20'.
A diaphragm 30 'is sleeved in a space surrounded by the valve body 10' and the valve cover 20', a valve rod 60' is arranged above the diaphragm 30', an upper valve rod shaft rod 61' and a lower valve rod shaft rod 62 'are respectively arranged on the upper side and the lower side of the valve rod 60', the lower valve rod shaft rod 62 'penetrates through the diaphragm pressing block 40' to be connected with the diaphragm 30', a convex embedded screw 31' is arranged on the upper side of the diaphragm 30', an external thread is arranged on the upper side of the embedded screw 31', an internal thread is arranged on the lower side of the lower valve rod shaft rod 62', and the lower piston shaft rod 62' penetrates through the diaphragm pressing block 40 'to be in spiral connection with the embedded screw 31'.
A fixed supporting block 50' is arranged above the valve rod 60', an upper valve rod shaft concave ring (not shown in the figure) is arranged in the middle of the upper valve rod shaft 61', an upper positioning sealing ring 72' is arranged in the upper valve rod shaft concave ring, and the upper valve rod shaft 61' is in sealing connection with the fixed supporting block 50' through the upper positioning sealing ring 72 '. The top end of the upper valve rod shaft rod 61 'is provided with external threads, the hand wheel through hole of the hand wheel 80' is provided with internal threads, and the top end of the upper valve rod shaft rod 61 'sequentially penetrates through the fixed supporting block 50', and the valve cover 20 'is in spiral connection with the hand wheel 80'.
All parts in the diaphragm valve are all plastic parts. The valve cover 20' is molded by reinforced plastic such as anti-corrosion PP (polypropylene) plastic and GF (glass fiber), and the mechanical strength can reach the maximum pressure PN8 standard of the cylinder; in order to ensure mechanical strength, the fixed supporting block 50 'and the valve rod 60' are molded by reinforced anti-corrosion PP (polypropylene) plastic plus GF (glass fiber); the upper positioning seal ring 72' expands and deforms due to friction heating when the actuator acts, and FPM (fluororubber) is adopted to prolong the service life and reduce mechanical faults caused by deformation; the diaphragm sheet 30' is selected from a high elastic polymer material having reversible deformation, and EPDM, FPM or a composite membrane with PTFE according to the characteristics of the medium; the contact surface of the diaphragm pressing block 40' and the diaphragm 30' is matched with the sealing surface of the valve body 10 '.
The plastic diaphragm valve with a brand new structure and the valve body made of the overcurrent material can be applied to strong corrosion and ultra-pure systems, such as UPVC, CPVC, PP, PVDF, PTFE, PFA. The invention reduces the number and cost of accessories and eliminates the failure rate of exposed metal parts corroded.
As shown in fig. 3 to 4, the valve bodies 10 and 10 'have a cylindrical structure with medium flow channels inside, and the lower side frames of the flow channels 12 and 12' are duckbill-shaped. The width of the flow passage positioned in the valve seat is larger than that of the flow passage positioned outside the valve seat.
The valve caps 20, 20' are cylindrical, have an increased height, and can accommodate components in the cylinder, so that the valve caps and the cylinder are integrated, the valve seats are arranged below the diaphragm sheets 30, 30' to contact fluid, and the cylinder blocks are arranged above the diaphragm sheets 30, 30 '. The number of accessories and the cost are reduced as a whole, and the failure rate of the exposed metal parts corroded is eliminated.
In the existing runner, the weir-shaped valve seat of the diaphragm valve is designed, the fluid track is in an inverted U shape, the 90-degree angle from the inlet runner to the weir-shaped sealing seat is easy to cause that the actuating mechanism is not reset, and the valve cannot be closed; the flow rate is reduced, and the valve flux and flow rate are reduced. The invention can increase the effective width of the duckbill flow channels 12 and 12', and under the condition of effectively ensuring the Kv (flux) value, the flow channels 12 and 12' and the membrane form an angle of 45 degrees, so that the traditional force of fluid vertically upwards approaching to the flow direction of 90 degrees is changed into 45 degrees, the inlet flow channel is refracted by the membrane to enter the outlet flow channel, the duckbill flow channels 12 and 12' reduce the fluid resistance, the excessive flow is obviously amplified, the regular triangle fluid track is reduced, the acting force of the membrane is reduced, the fluid resistance is effectively reduced, and the problem that the pneumatic valve cannot be reset when in use is solved.
The valve body 10, 10 'and the valve cover 20, 20' are detachably connected. Preferably, the internal threads at the bottoms of the valve caps 20 and 20' are connected and locked with the external threads at the upper parts of the valve bodies 10 and 10', the cross section of the external threads at the upper parts of the valve bodies is trapezoid, and the trapezoid threads 11 and 11' strengthen the stress and the backstop performance of the thread structures.
The invention has integrated full plastic design, no metal parts, and is truly corrosion-proof and widely used in various fields, including gas, water containing particles and impurities and acid-base chemicals; the structural design is uniformly expanded, so that the expansion can be uniformly carried out when the fluid and the ambient temperature change, and the leakage is prevented; the invention can ensure the compactness and the integration of the appearance of the valve, is beautiful, reduces the spare part cost and the assembly cost, and has small volume and beautiful appearance.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the implementation of the invention is not limited by the above manner, and it is within the scope of the invention to apply the inventive concept and technical solution to other situations as long as various improvements made by the inventive concept and technical solution are adopted, or without any improvement.
Claims (5)
1. A corrosion-resistant diaphragm valve is characterized by comprising a valve body and a valve cover; a diaphragm is sleeved in a space surrounded by the valve body and the valve cover, the upper part of the diaphragm is fixed through a fixed supporting block, and a diaphragm pressing block is arranged between the diaphragm and the fixed supporting block;
a piston is arranged above the fixed supporting block, an upper piston shaft rod and a lower piston shaft rod are respectively arranged at the upper side and the lower side of the piston, the lower side of the lower piston shaft rod sequentially penetrates through the fixed supporting block and the diaphragm pressing block to be connected with the diaphragm, a spring is arranged above the piston, and the upper side of the upper piston shaft rod penetrates through the spring and penetrates out of a valve cover through hole at the top end of the valve cover;
the fixed supporting block, the piston, the spring and the valve cover are connected to form a pneumatic execution device, and all parts in the diaphragm valve are all plastic parts;
the valve body is detachably connected with the valve cover; the internal thread at the bottom of the valve cover is connected and locked with the external thread at the upper part of the valve body, the cross section of the external thread at the upper part of the valve body is a trapezoidal thread, and the trapezoidal thread strengthens the stress and the backstop performance of the thread structure;
the valve body is of a cylindrical structure with a medium flow passage inside; the lower side frame of the runner is duckbill-shaped; the flow channel and the diaphragm form an angle of 45 degrees so as to increase the effective width of the duckbill-shaped flow channel and effectively ensure the flow value Kv;
a piston sealing ring is arranged between the piston and the inner side of the valve cover, an upper positioning sealing ring is arranged between the upper piston shaft rod and the valve cover through hole, and a lower positioning sealing ring is arranged between the lower piston shaft rod and the fixed supporting block;
wherein, the valve cover is molded by adopting corrosion-proof polypropylene plastic mixed with 30% glass fiber; the fixed supporting block and the piston are molded by glass fiber mixed with corrosion-resistant polypropylene plastic by 30%; the spring adopts a plastic coating process, and plastic spraying treatment is carried out on the surface of the spring; the piston sealing ring, the upper positioning sealing ring and the lower positioning sealing ring adopt fluororubber to prolong service life and reduce mechanical faults caused by deformation; the diaphragm is a composite diaphragm which selects Ethylene Propylene Diene Monomer (EPDM), fluororubber (FPM) or Polytetrafluoroethylene (PTFE) according to the medium characteristics; the diaphragm pressing block is matched with the sealing surface of the valve body through the joint surface of the diaphragm;
the valve cover is a cylinder, can accommodate an inner part of a cylinder, realizes integration of the valve cover and the cylinder, and is characterized in that a valve seat contacts fluid below a diaphragm, and the cylinder is directly arranged above the diaphragm.
2. The corrosion-resistant diaphragm valve of claim 1, wherein a protruding embedded screw is arranged on the upper side of the diaphragm, an external thread is arranged on the upper side of the embedded screw, an internal thread is arranged on the lower side of the lower piston shaft, and the lower piston shaft sequentially penetrates through the fixed supporting block, the diaphragm pressing block and the embedded screw in a threaded manner.
3. The corrosion resistant diaphragm valve of claim 1, wherein said piston is sealingly connected to said valve cap and said fixed support block.
4. The corrosion-resistant diaphragm valve is characterized by comprising a valve body and a valve cover, wherein a hand wheel is arranged above the valve cover; a diaphragm is sleeved in a space surrounded by the valve body and the valve cover, a valve rod is arranged above the diaphragm, an upper valve rod shaft lever and a lower valve rod shaft lever are respectively arranged at the upper side and the lower side of the valve rod, the lower valve rod shaft lever passes through a diaphragm pressing block to be connected with the diaphragm,
a fixed supporting block is arranged above the valve rod, the upper valve rod shaft rod sequentially passes through the fixed supporting block and the valve cover to be connected with the hand wheel,
all parts in the diaphragm valve are all plastic parts;
the valve body is detachably connected with the valve cover; the internal thread at the bottom of the valve cover is connected and locked with the external thread at the upper part of the valve body, the cross section of the external thread at the upper part of the valve body is a trapezoidal thread, and the trapezoidal thread strengthens the stress and the backstop performance of the thread structure;
the valve body is of a cylindrical structure with a medium flow passage inside; the lower side frame of the runner is duckbill-shaped; the flow channel and the diaphragm form an angle of 45 degrees so as to increase the effective width of the duckbill-shaped flow channel and effectively ensure the flow value Kv;
the upper valve rod shaft rod is in sealing connection with the fixed supporting block through an upper positioning sealing ring;
wherein the valve cover is made of anti-corrosion polypropylene plastic and glass fiber reinforced injection molding; the fixed supporting block and the valve rod are made of anti-corrosion polypropylene plastic and glass fiber reinforced injection molding; the upper positioning sealing ring adopts fluororubber to prolong service life and reduce mechanical faults caused by deformation; the diaphragm sheet is selected from EPDM, FPM or a composite diaphragm with PTFE according to the medium characteristics; the diaphragm pressing block is matched with the sealing surface of the valve body through the joint surface of the diaphragm;
the valve cover is a cylinder, can accommodate an inner part of a cylinder, realizes integration of the valve cover and the cylinder, and is characterized in that a valve seat contacts fluid below a diaphragm, and the cylinder is directly arranged above the diaphragm.
5. The corrosion-resistant diaphragm valve of claim 4, wherein a protruding embedded screw is arranged on the upper side of the diaphragm, an external thread is arranged on the upper side of the embedded screw, an internal thread is arranged on the lower side of the lower valve rod shaft, and the lower valve rod shaft passes through the diaphragm pressing block and is in spiral connection with the embedded screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710031495.8A CN107061786B (en) | 2017-01-17 | 2017-01-17 | Corrosion-resistant diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710031495.8A CN107061786B (en) | 2017-01-17 | 2017-01-17 | Corrosion-resistant diaphragm valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107061786A CN107061786A (en) | 2017-08-18 |
| CN107061786B true CN107061786B (en) | 2023-09-19 |
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ID=59597986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710031495.8A Active CN107061786B (en) | 2017-01-17 | 2017-01-17 | Corrosion-resistant diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061786B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107441618A (en) * | 2017-09-15 | 2017-12-08 | 佛山市康宇达医疗器械有限公司 | Control the colon disease therapeutic divice of the proportioning valve and application of the fluid flow proportioning valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2694068Y (en) * | 2004-05-26 | 2005-04-20 | 南通市明江阀门总厂 | Fluoroplastic full-lining diaphragm valve special for alkali-chloride |
| CN201696657U (en) * | 2010-06-12 | 2011-01-05 | 浙江远安流体设备有限公司 | Pneumatic diaphragm valve |
| CN202327328U (en) * | 2011-11-20 | 2012-07-11 | 项光平 | Plastic pneumatic diaphragm valve |
| CN102705530A (en) * | 2012-06-21 | 2012-10-03 | 昆山新莱洁净应用材料股份有限公司 | Membrane type pneumatic membrane valve |
| CN204153216U (en) * | 2014-08-11 | 2015-02-11 | 常州福磊石材有限公司 | Pneumatic lining fluorine membrane valve |
| CN104455539A (en) * | 2014-11-28 | 2015-03-25 | 张家港市大能塑料制品有限公司 | Full-plastic diaphragm valve with irregular diaphragm |
| CN206592573U (en) * | 2017-01-17 | 2017-10-27 | 深圳市科讯工业自动化设备有限公司 | A kind of corrosion-resistant diaphragm valve |
-
2017
- 2017-01-17 CN CN201710031495.8A patent/CN107061786B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2694068Y (en) * | 2004-05-26 | 2005-04-20 | 南通市明江阀门总厂 | Fluoroplastic full-lining diaphragm valve special for alkali-chloride |
| CN201696657U (en) * | 2010-06-12 | 2011-01-05 | 浙江远安流体设备有限公司 | Pneumatic diaphragm valve |
| CN202327328U (en) * | 2011-11-20 | 2012-07-11 | 项光平 | Plastic pneumatic diaphragm valve |
| CN102705530A (en) * | 2012-06-21 | 2012-10-03 | 昆山新莱洁净应用材料股份有限公司 | Membrane type pneumatic membrane valve |
| CN204153216U (en) * | 2014-08-11 | 2015-02-11 | 常州福磊石材有限公司 | Pneumatic lining fluorine membrane valve |
| CN104455539A (en) * | 2014-11-28 | 2015-03-25 | 张家港市大能塑料制品有限公司 | Full-plastic diaphragm valve with irregular diaphragm |
| CN206592573U (en) * | 2017-01-17 | 2017-10-27 | 深圳市科讯工业自动化设备有限公司 | A kind of corrosion-resistant diaphragm valve |
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| Publication number | Publication date |
|---|---|
| CN107061786A (en) | 2017-08-18 |
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