CN110778749A - Flow path selection valve applied to automatic online water quality monitoring - Google Patents
Flow path selection valve applied to automatic online water quality monitoring Download PDFInfo
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- CN110778749A CN110778749A CN201911106327.6A CN201911106327A CN110778749A CN 110778749 A CN110778749 A CN 110778749A CN 201911106327 A CN201911106327 A CN 201911106327A CN 110778749 A CN110778749 A CN 110778749A
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- valve
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- flow path
- valve plate
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
- F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
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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
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
- F16K27/045—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members with pivotal obturating members
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Lift Valve (AREA)
Abstract
The present invention provides a flow path selector valve including: the pressure regulating valve comprises a pressure ring, a valve cover, a position selecting valve plate, a pressure regulating screw plug, a rotor, a valve seat, a butterfly-shaped elastic sheet and a thrust ball bearing. One side of the valve cover is a cylindrical convex surface, the other side of the valve cover is a circular plane, and the periphery of the cylindrical convex surface comprises 10 uniformly distributed multi-position valve ports and a common valve port arranged in the center of the cylindrical convex surface. The circular plane is provided with 2 centrosymmetric positioning holes around the connecting hole. The center of the assembling surface of the position selecting valve plate is provided with a flow passage communicating groove, and the assembling surface of the position selecting valve plate is provided with a pressure-resistant sealing ring groove. One section of the pressure adjusting screw plug is a fine thread, and the other section of the pressure adjusting screw plug is a cone. The rotor is composed of three stages of cylinders, a positioning groove for a position selecting valve plate is formed in the center of the largest cylinder, a shaft coupling pin mounting hole is formed in the smallest cylinder, and the rotor is connected with the valve seat through the thrust ball bearing and the butterfly-shaped elastic sheet. The valve seat mounting surface is provided with two positioning holes and 3 threaded holes.
Description
Technical Field
The invention provides a flow path selection valve applied to automatic online water quality monitoring, relates to the technical field of automatic online water quality monitoring, and aims to solve the problems of easy leakage and short service life of a multi-channel flow path selection valve in the application of the existing automatic online water quality monitoring technology.
Background
With the development of industry, the detection of the concentration of heavy metal ions in different water source water bodies and the comparison of sample liquid are one of the contents of water quality detection, and the key structure of a water quality detection instrument is a multi-channel conversion control valve for realizing the shunt selective passing of various reagents and sample liquid. The prior flow path selection valve applied to automatic online monitoring of water quality generally has the following problems: 1. poor sealing properties leading to easy leakage; 2. the service life is short; 3. has no self-lubricating function.
Disclosure of Invention
The invention aims to provide a flow path selection valve applied to automatic online water quality monitoring, and solves the problems of easy leakage and short service life of a multi-channel flow path selection valve applied to the existing automatic online water quality monitoring technology.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a flow path selection valve applied to automatic online water quality monitoring is characterized by comprising: the pressure regulating valve comprises a pressure ring, a valve cover, a position selecting valve plate, a pressure regulating screw plug, a rotor, a valve seat, a butterfly-shaped elastic sheet and a thrust ball bearing. One side of the valve cover is a cylindrical convex surface, the other side of the valve cover is a circular plane, the periphery of the cylindrical convex surface comprises 10 multi-position valve ports which are uniformly distributed with an included angle of 30 degrees with the central axis, a common valve port is arranged in the center of the cylindrical convex surface, the multi-position valve ports and the common valve ports are connected with the circular plane, inclined connecting holes are arranged on the connecting surface of each multi-position valve port and the circular plane, and vertical connecting holes are arranged on the connecting surface of the common valve port and the circular plane. The circular plane is provided with 2 symmetrical positioning holes around the connecting hole, and the two positioning holes are on the same horizontal line with the axis of the vertical connecting hole. And a pressure adjusting channel is distributed on the side surface of the circular plane. The flow path communicating groove is distributed in the center of the assembling surface of the position selecting valve plate, the pressure-resistant sealing ring groove is distributed on the assembling surface of the position selecting valve plate, and the pressure-resistant sealing ring groove is distributed on the periphery of the flow path communicating groove and has sealing and lubricating effects. And 3 positioning convex grooves are uniformly distributed on the edge of the position selecting valve plate. One section of the pressure adjusting screw plug is a fine thread, and the other section of the pressure adjusting screw plug is a cone. The rotor is composed of three stages of cylinders, a positioning groove for a position selecting valve plate is formed in the center of the largest cylinder, a shaft coupling pin mounting hole is formed in the smallest cylinder, and the rotor is connected with the valve seat through the thrust ball bearing and the butterfly-shaped elastic sheet. The valve seat mounting surface is provided with two positioning holes and 3 threaded holes. The center of the valve seat is provided with a positioning hole and a thrust ball bearing mounting hole which are matched with the rotor, and the 3 butterfly-shaped elastic sheets form specific elastic force under the combined action of concave-convex-concave combination for keeping completely-jointed acting force between the position selecting valve plate and the valve cover.
Specifically, the periphery of the cylindrical convex surface of the valve cover comprises 10 multi-position valve ports which are uniformly distributed with an included angle of 30 degrees with the central axis, and a common valve port is arranged in the center of the cylindrical convex surface, so that the optimal liquid injection distance between the 10 inclined connecting holes and the vertical connecting hole is ensured, and the phenomenon that injected liquid remains in the valve to influence the accuracy of automatic online water quality monitoring is avoided.
Further, a pressure adjusting channel is distributed on the side face of the circular plane of the valve cover. The pressure adjusting channel adopts a mode of firstly widening and then narrowing to design an AB section, the inner diameter of the A section is designed into a thread structure, and the narrowing design of the B section is used for increasing the sealing pressure resistance of the annular groove.
Further, extreme pressure compound lithium-based grease is injected into the channel of the section B, and a pressure adjusting screw plug is screwed into the section A and used for adjusting the pressure of the pressure-resistant sealing ring groove of the position selecting valve plate. The high-pressure sealing liquid ring can be formed in the operation process, leakage is prevented, the friction force between the valve cover and the direction selecting valve plate is reduced, the wear resistance is enhanced, and the service life is prolonged.
Compared with the prior art, the multi-channel switching control valve has the following advantages:
the structure of the flow path selection valve applied to the automatic online water quality monitoring is improved, the self-lubricating function is added, the sealing performance is enhanced, the service life is prolonged, and therefore the monitoring quality of the automatic online water quality monitoring is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is an exploded view of a flow path selection valve for automatic online monitoring of water quality according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a direction selection valve plate of the flow path selection valve for automatic online water quality monitoring provided by the embodiment of the invention.
Fig. 3 is a schematic diagram of a valve cover structure of a flow path selection valve for automatic online water quality monitoring provided by an embodiment of the invention.
Wherein the reference numerals are summarized as follows:
a pressure ring 1; a valve cover 2; a multi-position valve port 201; a common valve port 202; a cylindrical convex surface 203; a pressure regulating passage 204; a circular plane 205; a position selecting valve plate 3; a flow channel communication groove 301; a pressure-resistant seal ring groove 302; a positioning tongue 303; a pressure regulating screw plug 4; a rotor 5; a valve seat 6; a butterfly-shaped elastic sheet 7; and a thrust ball bearing 8.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is an exploded view of a flow path selection valve for automatic online water quality monitoring according to an embodiment of the present invention, and as shown in fig. 1, the flow path selection valve for automatic online water quality monitoring according to an embodiment of the present invention includes: the pressure regulating valve comprises a pressure ring 1, a valve cover 2, a position selecting valve plate 3, a pressure regulating screw plug 4, a rotor 5, a valve seat 6, a butterfly-shaped elastic sheet 7 and a thrust ball bearing 8. One side of the valve cover 2 is a cylindrical convex surface 203, the other side of the valve cover is a circular plane 205, the periphery of the cylindrical convex surface 203 comprises 10 multi-position valve ports 201 which are uniformly distributed with an included angle of 30 degrees with the central axis, and a common valve port 202 is arranged in the center of the cylindrical convex surface 203, the multi-position valve ports 201 and the common valve ports 202 are connected with the circular plane 205, inclined connecting holes are arranged on the connecting surface of each multi-position valve port 201 and the circular plane 205, and vertical connecting holes are arranged on the connecting surface of the common valve port 202 and the circular plane 205. The circular plane is provided with 2 symmetrical positioning holes around the connecting hole, and the two positioning holes are on the same horizontal line with the axis of the vertical connecting hole. The pressure adjusting channel 204 is arranged at the side of the circular plane. The center of the assembling surface of the position selecting valve plate 3 is provided with a flow passage communicating groove 301, the assembling surface of the position selecting valve plate 3 is provided with a pressure-resistant sealing ring groove 302, and the pressure-resistant sealing ring groove 302 is arranged at the periphery of the flow passage communicating groove 301 and has sealing and lubricating functions. 3 positioning convex grooves 303 are uniformly distributed on the edge of the position selecting valve plate 3. The pressure regulating screw plug 4 is provided with a fine thread at one section and a cone at the other section. The rotor 5 is composed of three stages of cylinders, a positioning groove for a position selecting valve plate is formed in the center of the largest cylinder, a shaft coupling pin mounting hole is formed in the smallest cylinder, and the rotor 5 is connected with the valve seat 6 through the thrust ball bearing 8 and the butterfly-shaped elastic sheet 7. Two positioning holes and 3 threaded holes are formed in the mounting surface of the valve seat 6. The center of the valve seat 6 is provided with a positioning hole and a thrust ball bearing mounting hole which are matched with the rotor 5, and the 3 butterfly-shaped elastic sheets 7 form specific elastic force under the combined action of concave-convex-concave combination for keeping completely-jointed acting force between the position selecting valve sheet 4 and the valve cover 2.
It should be noted that, the periphery of the cylindrical convex surface 203 of the valve cover 2 includes 10 multi-position valve ports 201 uniformly distributed with an included angle of 30 degrees with the central axis, and a common valve port 202 is arranged in the center of the cylindrical convex surface 203, so that the optimal liquid injection distance between the 10 inclined connecting holes and the vertical connecting hole is ensured, and the injected liquid is prevented from remaining in the valve to influence the accuracy of automatic online water quality monitoring.
It should be noted that the pressure regulating channel 204 is arranged at the side of the circular plane 205 of the valve cover. The pressure adjusting channel adopts a mode of firstly widening and then narrowing to design an AB section, the inner diameter of the A section is designed into a thread structure, and the narrowing design of the B section is used for increasing the sealing pressure resistance of the annular groove.
It should be noted that extreme pressure compound lithium base grease is injected into the passage of the section B, and a pressure regulating screw plug 4 is screwed into the section a to regulate the pressure of the pressure-resistant sealing ring groove 302 of the position selecting valve plate 3. Can form high pressure sealed liquid ring at the operation in-process, prevent the seepage, reduce valve gap 2 with select to valve block 3 frictional force, reinforcing wearability to increase of service life.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A flow path selection valve applied to automatic online water quality monitoring is characterized by comprising: the pressure regulating valve comprises a pressure ring, a valve cover, a position selecting valve plate, a pressure regulating screw plug, a rotor, a valve seat, a butterfly-shaped elastic sheet and a thrust ball bearing; one side of the valve cover is a cylindrical convex surface, the other side of the valve cover is a circular plane, the periphery of the cylindrical convex surface comprises 10 multi-position valve ports which are uniformly distributed with an included angle of 30 degrees with the central axis, and a common valve port is distributed in the center of the cylindrical convex surface, the multi-position valve ports and the common valve ports are connected with the circular plane, inclined connecting holes are distributed on the connecting surface of each multi-position valve port and the circular plane, and vertical connecting holes are distributed on the connecting surface of the common valve port and the circular plane; the circular plane is provided with 2 symmetrical positioning holes around the connecting hole, and the two positioning holes are on the same horizontal line with the axis of the vertical connecting hole; a pressure adjusting channel is distributed at the side surface of the circular plane; a flow path communicating groove is distributed in the center of the positioning valve plate assembling surface, a pressure-resistant sealing ring groove is distributed on the positioning valve plate assembling surface, and the pressure-resistant sealing ring groove is distributed at the periphery of the flow path communicating groove and has sealing and lubricating effects; 3 positioning convex grooves are uniformly distributed on the edge of the position selecting valve plate; one section of the pressure adjusting screw plug is a fine thread, and the other section of the pressure adjusting screw plug is a cone; the rotor is composed of three stages of cylinders, a positioning groove for a position selecting valve plate is arranged in the center of the largest cylinder, a shaft coupling pin mounting hole is formed in the smallest cylinder, and the rotor is connected with a valve seat through the thrust ball bearing and the butterfly-shaped elastic sheet; the valve seat mounting surface is provided with two positioning holes and 3 threaded holes; the center of the valve seat is provided with a positioning hole and a thrust ball bearing mounting hole which are matched with the rotor, and the 3 butterfly-shaped elastic sheets form specific elastic force under the combined action of concave-convex-concave combination for keeping completely-jointed acting force between the position selecting valve plate and the valve cover.
2. The flow path selection valve of claim 1, wherein the periphery of the cylindrical convex surface of the valve cover comprises 10 multi-position valve ports which are uniformly distributed with an included angle of 30 degrees with the central axis, and a common valve port is arranged at the center of the cylindrical convex surface, so that the optimal liquid injection distance between the 10 inclined connecting holes and the vertical connecting hole is ensured, and the injected liquid is prevented from remaining in the valve, thereby influencing the accuracy of automatic online water quality monitoring.
3. The flow path selection valve according to claim 1, wherein a pressure regulation passage is laid at a circular planar side of the valve cover; the pressure adjusting channel adopts a mode of firstly widening and then narrowing to design an AB section, the inner diameter of the A section is designed into a thread structure, and the narrowing design of the B section is used for increasing the sealing pressure-resisting capacity of the pressure-resisting sealing ring groove.
4. The pressure regulating passage according to claim 3, wherein an extreme pressure compound lithium-based grease is injected into the passage at the section B, and a pressure regulating screw plug is screwed into the passage at the section A for regulating the pressure of the annular groove of the position selecting valve plate; the high-pressure sealing liquid ring can be formed in the operation process, leakage is prevented, the friction force between the valve cover and the direction selecting valve plate is reduced, the wear resistance is enhanced, and the service life is prolonged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911106327.6A CN110778749B (en) | 2019-11-13 | 2019-11-13 | Flow path selection valve applied to automatic online water quality monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911106327.6A CN110778749B (en) | 2019-11-13 | 2019-11-13 | Flow path selection valve applied to automatic online water quality monitoring |
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| Publication Number | Publication Date |
|---|---|
| CN110778749A true CN110778749A (en) | 2020-02-11 |
| CN110778749B CN110778749B (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911106327.6A Active CN110778749B (en) | 2019-11-13 | 2019-11-13 | Flow path selection valve applied to automatic online water quality monitoring |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004076896A1 (en) * | 2003-02-27 | 2004-09-10 | Beda Ferenc | Ball valve assembly |
| JP2007100842A (en) * | 2005-10-04 | 2007-04-19 | Asahi Organic Chem Ind Co Ltd | Automatic water supply device |
| CN202884144U (en) * | 2012-06-28 | 2013-04-17 | 阮云 | High pressure water pressure regulating valve |
| CN105715621A (en) * | 2016-04-28 | 2016-06-29 | 黄斌 | Direct relief valve with guide structure |
| CN109237075A (en) * | 2018-09-29 | 2019-01-18 | 成都凯天电子股份有限公司 | Multipassage rotary switching valve |
| CN208900445U (en) * | 2018-09-29 | 2019-05-24 | 成都凯天电子股份有限公司 | Rotating transfer valve |
-
2019
- 2019-11-13 CN CN201911106327.6A patent/CN110778749B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004076896A1 (en) * | 2003-02-27 | 2004-09-10 | Beda Ferenc | Ball valve assembly |
| JP2007100842A (en) * | 2005-10-04 | 2007-04-19 | Asahi Organic Chem Ind Co Ltd | Automatic water supply device |
| CN202884144U (en) * | 2012-06-28 | 2013-04-17 | 阮云 | High pressure water pressure regulating valve |
| CN105715621A (en) * | 2016-04-28 | 2016-06-29 | 黄斌 | Direct relief valve with guide structure |
| CN109237075A (en) * | 2018-09-29 | 2019-01-18 | 成都凯天电子股份有限公司 | Multipassage rotary switching valve |
| CN208900445U (en) * | 2018-09-29 | 2019-05-24 | 成都凯天电子股份有限公司 | Rotating transfer valve |
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| Publication number | Publication date |
|---|---|
| CN110778749B (en) | 2023-03-14 |
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Inventor after: Liang Shelou Inventor after: Li Hanhan Inventor after: Li Zebiao Inventor after: Chen Qing Inventor after: Sheng Zuyun Inventor before: Chen Qing Inventor before: Li Hanhan Inventor before: Li Zebiao Inventor before: Liang Shelou Inventor before: Sheng Zuyun |
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