CN114105393B - Self-exhausting water inlet and return valve for floor heating - Google Patents
Self-exhausting water inlet and return valve for floor heating Download PDFInfo
- Publication number
- CN114105393B CN114105393B CN202111414600.9A CN202111414600A CN114105393B CN 114105393 B CN114105393 B CN 114105393B CN 202111414600 A CN202111414600 A CN 202111414600A CN 114105393 B CN114105393 B CN 114105393B
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- water
- filter cartridge
- steering
- communicated
- groove
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/08—Arrangements for drainage, venting or aerating
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Multiple-Way Valves (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a self-exhaust water inlet and return valve for floor heating, and belongs to the field of heating and ventilation equipment. A self-exhaust water inlet and return valve for floor heating comprises a drainage groove, a peripheral wall, a water body flow cavity and a water body flow cavity, wherein the peripheral wall is arranged between communication ports of a steering ball, and the steering groove is arranged at the upper end of the steering ball and is communicated with the water body flow cavity of a valve pipe; the pressure film is made of elastic materials and is a component part of the bottom wall of the steering groove, and the steering groove and the inner cavity of the steering ball are separated into independent spaces; the steering ball is divided into an open type and a closed type for the steering position; under the open type, the communication port is communicated with the water body flow cavity, and the drainage groove is not communicated with the water body flow cavity; under the closed condition, the communication port is not communicated with the water body flow cavity, the drainage groove is communicated with the water body flow cavity, and the pressure membrane deforms towards the direction of the steering ball cavity; the filter cartridge can realize that the water pressure in the filter cartridge is flushable, so that viscous impurities and air adsorbed on the filter cartridge are flushed away, and the problems of too small water flow, low water purity and air blockage of a pipeline are prevented.
Description
Technical Field
The invention belongs to the field of heating and ventilation equipment, and particularly relates to a self-exhaust water inlet and return valve for floor heating.
Background
The water inlet and return valves are all used for the hydrothermal floor heating, are components with the same structure, are respectively provided with water inlet valves and water outlet valves according to the difference of the setting positions, and are respectively provided with water inlet valves and water outlet valves.
The switch for realizing water circulation in the water inlet and return valve through the rotation of the steering ball can realize the state change from on to off or from off to on only by rotating the driving rod by 90 degrees. The steering ball is internally provided with a filter cartridge, the filter cartridge is only provided with an opening, the opening is communicated with a communication port of the steering ball, water flows in from the communication port, enters the filter cartridge, flows out from another communication port after being filtered by the filter cartridge, and realizes the filtration of macromolecular (scrap iron, silt and the like) impurities in water.
However, in the daily and monthly process, macromolecular impurities in water can be adsorbed on the wall of the filter cylinder, especially on the upper edge and the lower edge of an opening of the filter cylinder, and large pieces of impurities are accumulated, so that the problem of small water flow is caused; in addition, air inevitably exists in the water, and the height of the inner cavity (where the filter cartridge is placed) of the steering ball is necessarily higher than the position of the communication port due to the problems of the prior art; when water flows, the water flows in from the communication port and flows out from the other communication port, and is higher than the hollow part of the communication port, especially in a high-rise building with low water pressure; so that air in water can be gathered at the upper end of the filter cartridge in the form of bubbles, and the problem of air lock of the pipeline is caused.
No matter the water flows through a small part or a pipeline is air-filled, the problem that the water inlet and the water outlet of the hydrothermal floor heating are not hot can be finally caused, and the heating efficiency is seriously affected.
Disclosure of Invention
The invention aims to solve the technical problem of providing a self-exhausting air inlet and return valve for floor heating, which can realize that the water pressure in a filter cartridge is fluctuated, so that viscous impurities and air adsorbed on the filter cartridge are washed away, and the problems of small water flow, low water purity and air lock of a pipeline are prevented.
The invention relates to a self-exhaust water inlet and return valve for floor heating, which comprises a valve pipe, a driving piece, a steering ball and a filter cartridge. And also comprises
A diversion trench which is arranged on the peripheral wall between the communicating ports of the steering ball and communicates the steering trench arranged at the upper end of the steering ball with the water body flowing cavity of the valve pipe;
the pressure film is made of elastic materials and is a component part of the bottom wall of the steering groove, and the steering groove and the inner cavity of the steering ball are separated into independent spaces;
the steering ball is divided into an open type and a closed type for the steering position;
under the open type, the communication port is communicated with the water body flow cavity, and the drainage groove is not communicated with the water body flow cavity;
under the closed condition, the communication port is not communicated with the water body flow cavity, the drainage groove is communicated with the water body flow cavity, and the pressure membrane deforms towards the direction of the steering ball cavity.
As a further development of the invention, the drive comprises a drive rod; the driving rod is embedded in the steering groove and keeps a gap with the pressure film; the driving rod is in sealing connection with the opening at the upper end of the steering groove, so that the steering groove is only communicated with the drainage groove.
As a further improvement of the invention, the diversion trench is located at the upper hemisphere of the diversion sphere away from the diversion trench end.
As a further improvement of the invention, the bottom side of the filter cartridge is provided with turbulence elements; the turbulence member acts on the water within the filter cartridge to cause turbulence of the water within the filter cartridge.
As a further improvement of the invention, the turbulent flow member comprises a magnetizer, wherein the magnetizer is fixedly arranged in a sealing component at the bottom side of the filter cartridge, the magnetizer is far away from the end surface of the filter cartridge and is communicated with the outside, and the magnetizer is close to the end surface of the filter cartridge and is contacted with water in the filter cartridge; the magnetizer is far away from the end face of the filter cartridge and periodically contacted with external magnetic components; the water in the filter cartridge has magnetically permeable impurities therein.
As a further improvement of the invention, the outside of the water inlet pipeline of the valve pipe is sleeved with a magnetizing piece; the magnetic field of the magnetizing piece covers the water inlet pipeline and magnetizes metal impurities in water flowing through the water inlet pipeline.
As a further improvement of the invention, the turbulence member comprises a magnetic plate; the magnetic plate is connected in the filter cartridge in a sliding way; the magnetic plate and the filter cartridge are kept in dynamic seal; the magnetic plate has self-return property; the movable permanent magnet piece is arranged on the outer side of the sealing component at the bottom side of the filter cartridge, and the moving range of the permanent magnet piece comprises a corresponding position right below the magnetic plate; the magnetic plate and the opposite end of the permanent magnet piece have the same magnetism.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the pressure film is arranged, when the steering ball is in a closed type, the drainage groove is communicated with the water flow cavity, water flows into the steering groove through the drainage groove, due to the water pressure of the water source, the water pressure in the steering groove is increased, the pressure film deforms and protrudes into the filter cartridge, the space in the filter cartridge is forced to be reduced, impurities attached to the filter cartridge are extruded downwards, particularly bubbles at the upper end of the filter cartridge are extruded into water to be dissolved or pressed into the water, and the impurities are taken away when the steering ball is opened next time.
According to the invention, the magnetized metal impurities are magnetized through the magnetizing piece, and the magnetized metal impurities can be attracted by the magnetic plate positioned at the bottom of the filter cartridge, so that the metal impurities are prevented from being adsorbed at the edge of the water inlet of the filter cartridge.
When an operator places the permanent magnet outside the sealing component corresponding to the magnetic plate, the magnetic plate generates displacement, the position of the permanent magnet is changed, the displacement size can be changed, turbulence is generated in the filter cartridge, impurities adsorbed on the wall of the filter cartridge are extruded, and particularly bubbles at the upper end part of the filter cartridge can be extruded and broken and then are fused into water again, so that the filter cartridge is convenient to wash away next time.
According to the invention, the bottom end of the filter cylinder is fixedly provided with the magnetizer, one end of the magnetizer is communicated with the outside, and the other end of the magnetizer is contacted with water in the filter cylinder, so that when an operator uses the magnet to contact the magnetizer, the magnetizer is attached with magnetism, and metal impurities magnetized by the magnetization piece are attracted to cause turbulence of water in the filter cylinder, so that the metal impurities are extruded and fallen, adsorbed on the magnetizer, and the filter cylinder is convenient to take out and clean.
Drawings
FIG. 1 is a schematic perspective sectional view of a first embodiment of the present invention;
fig. 2 is a schematic perspective view of a steering ball according to a first embodiment of the present invention;
fig. 3 is a schematic perspective view of a filter cartridge according to a first embodiment of the present invention;
FIG. 4 is a schematic perspective sectional view of a steering ball according to a first embodiment of the present invention;
FIG. 5 is a schematic view showing a connection structure of a steering ball and a driving rod according to a first embodiment of the present invention;
FIG. 6 is a schematic illustration of bubble and magazine placement within a filter cartridge according to a first embodiment of the present invention;
FIG. 7 is a schematic view showing a position of a magnetization member according to a second embodiment of the present invention;
fig. 8 is a schematic view of the handling of a magnetic plate according to a third embodiment of the present invention.
The reference numerals in the figures illustrate:
valve tube 1, driving member 2, driving rod 201, steering ball 3, inner cavity 301, communication port 302, steering groove 303, drainage groove 304, filter cartridge 4, water inlet 401, pressure membrane 5, magnetization member 6, magnetic plate 7.
Detailed Description
First embodiment: referring to fig. 1-6, a self-exhaust air intake and return valve for floor heating comprises a valve tube 1, a driving piece 2, a steering ball 3 and a filter cartridge 4.
The cavity of the valve tube 1 for water to flow is a water flow cavity.
The steering ball 3 is provided with a communication port 302 in the horizontal direction, the communication port 302 penetrates the steering ball 3, and water penetrates the steering ball 3 through the communication port 302. The steering ball 3 is provided with an inner cavity 301 with an open lower end and a closed upper end in the vertical direction, and the filter cartridge 4 is embedded in the inner cavity 301. The upper end of the steering ball 3 is provided with a steering groove 303, the steering groove 303 is in a shuttle shape, the bottom wall of the steering groove 303 is provided with a pressure film 5, the pressure film 5 partitions the steering groove 303 and the inner cavity 301 into independent spaces, the pressure film 5 is made of elastic materials, the pressure film 5 can deform downwards under the compression of external force, and the pressure film automatically returns after the external force disappears. A drainage groove 304 is formed in the peripheral wall between the communication ports 302 of the steering ball 3, the drainage groove 304 is used for communicating the steering groove 303 with the water flow cavity, and water in the valve body 1 is filled into the steering groove 303 through the drainage groove 304; the drainage groove 304 is far away from the end of the diversion groove 303 and is positioned on the upper hemisphere of the diversion ball 3, so that water can be conveniently filled into the diversion groove 303 through the drainage groove 304, if the drainage groove is arranged on the lower hemisphere, part of water can be guided to flow downwards, but the downward flow does not go, and the drainage groove can flow backwards, so that the turbulence of the water body on the periphery of the diversion ball 3 is increased, and the problem that water cannot well enter the drainage groove 304 occurs.
The driving member 2 includes a driving lever 201; the driving rod 201 is embedded in the steering groove 303 and keeps a gap with the pressure membrane 5, and the gap is used for filling water; the length of the lower end portion of the driving rod 201 is greater than the length of the shuttle-shaped turning groove 303, the width of the lower end portion of the driving rod 201 is the same as the width of the shuttle-shaped turning groove 303, and the driving rod 201 seals the upper end opening of the turning groove 303 so that the turning groove 303 is communicated with the drainage groove 304 only.
The water inlet 401 of the filter cartridge 4 communicates with the communication port 302, and the water entering from the communication port 302 passes through the filter cartridge 4 to filter impurities and then is discharged out of the steering ball 3, so that the impurities are trapped in the filter cartridge 4. Because impurities are attached to the water flow, the impurities are adsorbed and left at the edge of the water inlet 401 after passing through the water inlet 401 of the filter cartridge 4, and the impurities positioned at the lower side of the water inlet 401 are easy to fall off due to gravity and the downward flow of the water; however, the impurities on the upper side of the water inlet 401 are not easy to fall, and gradually adsorb new impurities, so that larger impurity blocks are formed.
The steering ball 3 is divided into an open type and a closed type for the steering position;
in the open type, the communication port 302 is communicated with the water flow cavity, and the drainage groove 304 is not communicated with the water flow cavity;
in the closed state, the communication port 302 is not communicated with the water flow cavity, the drainage groove 304 is communicated with the water flow cavity, and the pressure membrane 5 deforms towards the direction of the inner cavity 301 of the steering ball 3.
The operation mode of this embodiment is as follows: under the open type, water enters the water inlet 401 through one end of the communication port 302 and enters the filter cartridge 4, impurities are filtered, and air in the water floats upwards to form bubbles; the driving rod 201 is rotated to enable the steering ball 3 to rotate 90 degrees, the communication port 302 is closed by the inner wall of the valve tube 1, the drainage groove 304 is exposed and is communicated with the water flow cavity, water flows from the drainage groove 304 to the steering groove 303 due to the water pressure of a water source, the pressure membrane 5 at the bottom wall of the steering groove 303 is subjected to the action of the water pressure and is deformed downwards and extrudes the space in the filter cartridge 4 due to the fact that the steering groove 303 is only communicated with the drainage groove 304, air at the upper side of the filter cartridge 4 is extruded to move downwards and is fused into the water again, and meanwhile, impurity blocks along the upper edge of the water inlet 401 are also pressed to fall; the driving rod 201 is rotated to disconnect the drainage groove 304 from the water body flow cavity, but because the drainage groove 304 and the communication port 302 form an included angle of 90 degrees, when the drainage groove 304 is disconnected from the water body flow cavity, the communication port 302 just resumes the communication with the water body flow cavity, water immediately floods into the filter cartridge 4, and the water with air is discharged out of the filter cartridge 4, so that the enrichment of excessive air in the filter cartridge 4 is prevented, and the water flow is small; preventing excessive impurity enrichment in the cartridge filter 4 resulting in less water flow.
Specific embodiment II: on the basis of the first embodiment, referring to fig. 7, a self-exhaust air intake and return valve for floor heating is disclosed, and a magnetizing piece 6 is sleeved outside an air intake pipeline of a valve pipe 1; the magnetic field of the magnetizing member 6 covers the water inlet pipeline to magnetize metal impurities in water flowing through the water inlet pipeline. The magnetizing piece 6 is a pair of magnetic poles with opposite magnetism, the positive pole magnet is positioned on the upper side of the water inlet pipeline, the negative pole magnet is positioned on the lower side of the water inlet pipeline, and the magnetic induction line covers the section of the whole water inlet pipeline.
The bottom side of the filter cartridge 4 is provided with a magnet which can attract magnetized metal impurities and reduce impurity enrichment at the water inlet 401.
Third embodiment: on the basis of the first embodiment, referring to fig. 8, a self-exhaust air intake and return valve for floor heating is shown, and a magnetic plate 7 is arranged at the bottom side of a filter cartridge 4; the magnetic plate 7 is connected in the filter cartridge 4 in a sliding way; the magnetic plate 7 keeps dynamic seal with the filter cartridge 4; the magnetic plate 7 has self-return property; the movable permanent magnet pieces are arranged on the outer sides of the sealing parts on the bottom side of the filter cartridge 4, and the moving range of the permanent magnet pieces comprises the corresponding positions right below the magnetic plate 7; the magnetic plate 7 is the same as the opposite end of the permanent magnet.
When the permanent magnet is placed on the outer side of the sealing component corresponding to the magnetic plate 7 by an operator, the magnetic plate 7 generates displacement, the position of the permanent magnet is changed, the displacement size can be changed, turbulence is generated in the filter cartridge 4, impurities adsorbed on the wall of the filter cartridge 4 are extruded, and particularly bubbles at the upper end part of the filter cartridge 4 can be extruded and melted into water again, so that the next flushing is facilitated.
Fourth embodiment: the same magnetizing member 6 as that of the third embodiment is added on the basis of the third embodiment.
Fifth embodiment: unlike the second embodiment, the bottom side of the filter cartridge 4 is provided with a magnetizer made of ferroalloy, the magnetizer is fixedly arranged in the sealing component at the bottom side of the filter cartridge 4, the magnetizer is far away from the end surface of the filter cartridge 4 and is communicated with the outside, and the magnetizer is close to the end surface of the filter cartridge 4 and is contacted with water in the filter cartridge 4; the end surface of the magnetizer far away from the filter cartridge 4 is periodically contacted with external magnetic components; the water in the filter cartridge 4 has magnetic permeability impurities.
When an operator contacts the magnetizer by using the magnet, the magnetizer is attached with magnetism, and metal impurities magnetized by the magnetizing piece 6 are attracted to cause turbulent flow of water in the filter cartridge 4, so that the metal impurities are extruded and adsorbed on the magnetizer, and the magnetizer is convenient to take out and clean.
Claims (7)
1. The utility model provides a warm up with self-bleeding water valve that advances, includes valve pipe (1), driving piece (2), steering ball (3) and cartridge filter (4), its characterized in that: and also comprises
The drainage groove (304) is formed in the peripheral wall between the communication ports (302) of the steering ball (3), and the steering groove (303) formed in the upper end of the steering ball (3) is communicated with the water body flow cavity of the valve pipe (1);
the pressure membrane (5) is made of elastic materials and is a component part of the bottom wall of the steering groove (303), and the steering groove (303) and the inner cavity (301) of the steering ball (3) are separated into independent spaces;
the steering position of the steering ball (3) is divided into an open type and a closed type;
under the open type, the communication port (302) is communicated with the water body flow cavity, and the drainage groove (304) is not communicated with the water body flow cavity;
under the closed condition, the communication port (302) is not communicated with the water body flow cavity, the drainage groove (304) is communicated with the water body flow cavity, and the pressure membrane (5) deforms towards the direction of the inner cavity (301) of the steering ball (3).
2. The self-exhaust air intake and return valve for floor heating according to claim 1, wherein: the driving piece (2) comprises a driving rod (201); the driving rod (201) is embedded in the steering groove (303) and keeps a gap with the pressure film (5); the driving rod (201) is in sealing connection with the upper end opening of the steering groove (303), so that the steering groove (303) is only communicated with the drainage groove (304).
3. The self-exhaust air intake and return valve for floor heating according to claim 1, wherein: the end of the diversion trench (304) far away from the diversion trench (303) is positioned on the upper hemisphere of the diversion sphere (3).
4. The self-exhaust air intake and return valve for floor heating according to claim 1, wherein: turbulent flow pieces are arranged at the bottom side of the filter cartridge (4); the turbulence member acts on the water in the filter cartridge (4) to cause turbulence of the water in the filter cartridge (4).
5. The self-exhaust air intake and return valve for floor heating according to claim 4, wherein: the turbulent flow piece comprises a magnetizer which is fixedly arranged in a sealing component at the bottom side of the filter cartridge (4), the magnetizer is far away from the end surface of the filter cartridge (4) and is communicated with the outside, and the magnetizer is close to the end surface of the filter cartridge (4) and is contacted with water in the filter cartridge (4); the end surface of the magnetizer far away from the filter cartridge (4) is in periodic contact with external magnetic components; the water in the filter cartridge (4) has magnetic permeability impurities.
6. The self-exhaust air intake and return valve for floor heating according to claim 5, wherein: the outer side of the water inlet pipeline of the valve pipe (1) is sleeved with a magnetizing piece (6); the magnetic field of the magnetizing piece (6) covers the water inlet pipeline to magnetize metal impurities in water flowing through the water inlet pipeline.
7. The self-exhaust air intake and return valve for floor heating according to claim 4, wherein: the turbulence member comprises a magnetic plate (7); the magnetic plate (7) is connected in the filter cartridge (4) in a sliding way; the magnetic plate (7) and the filter cartridge (4) are kept in dynamic seal; the magnetic plate (7) has self-return property; the movable permanent magnet piece is arranged outside the sealing component at the bottom side of the filter cartridge (4), and the moving range of the permanent magnet piece comprises a corresponding position right below the magnetic plate (7); the magnetism of the magnetic plate (7) is the same as that of the opposite end of the permanent magnet piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111414600.9A CN114105393B (en) | 2021-11-25 | 2021-11-25 | Self-exhausting water inlet and return valve for floor heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111414600.9A CN114105393B (en) | 2021-11-25 | 2021-11-25 | Self-exhausting water inlet and return valve for floor heating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114105393A CN114105393A (en) | 2022-03-01 |
| CN114105393B true CN114105393B (en) | 2023-10-10 |
Family
ID=80373416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111414600.9A Active CN114105393B (en) | 2021-11-25 | 2021-11-25 | Self-exhausting water inlet and return valve for floor heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114105393B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB892591A (en) * | 1959-02-28 | 1962-03-28 | Newton & Bennett Ltd | Improvements in or relating to hydro-pneumatic actuating devices |
| GB1246054A (en) * | 1968-05-02 | 1971-09-15 | Battelle Memorial Institute | Improvements in or relating to valves for pressure responsive air discharge |
| JPH11114321A (en) * | 1997-10-15 | 1999-04-27 | Tlv Co Ltd | Strainer with built-in valve member |
| CN203532865U (en) * | 2013-10-11 | 2014-04-09 | 王泉卫 | Filtering three-way ball valve |
| CN204042053U (en) * | 2014-08-16 | 2014-12-24 | 诸暨市永灵机械配件有限公司 | Ball valve anti-blockage structure |
| CN110939784A (en) * | 2019-12-25 | 2020-03-31 | 杭州欣禾工程管理咨询有限公司 | A governing valve that is used for chemical production's easy clearance impurity |
| CN211082920U (en) * | 2019-12-03 | 2020-07-24 | 宁波耀通管阀科技有限公司 | Ball valve convenient to inside clearance |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITNO20030001U1 (en) * | 2003-01-14 | 2004-07-15 | Pettinaroli Flii Spa | BALL VALVE WITH PARTICULAR FEATURE OF PERCENTAGE INCREASE OF THE FLOW, OBTAINABLE IN THE MANEUVERING ARC OF 90 °, FROM THE CLOSING POSITION TO THE OPENING POSITION. |
-
2021
- 2021-11-25 CN CN202111414600.9A patent/CN114105393B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB892591A (en) * | 1959-02-28 | 1962-03-28 | Newton & Bennett Ltd | Improvements in or relating to hydro-pneumatic actuating devices |
| GB1246054A (en) * | 1968-05-02 | 1971-09-15 | Battelle Memorial Institute | Improvements in or relating to valves for pressure responsive air discharge |
| JPH11114321A (en) * | 1997-10-15 | 1999-04-27 | Tlv Co Ltd | Strainer with built-in valve member |
| CN203532865U (en) * | 2013-10-11 | 2014-04-09 | 王泉卫 | Filtering three-way ball valve |
| CN204042053U (en) * | 2014-08-16 | 2014-12-24 | 诸暨市永灵机械配件有限公司 | Ball valve anti-blockage structure |
| CN211082920U (en) * | 2019-12-03 | 2020-07-24 | 宁波耀通管阀科技有限公司 | Ball valve convenient to inside clearance |
| CN110939784A (en) * | 2019-12-25 | 2020-03-31 | 杭州欣禾工程管理咨询有限公司 | A governing valve that is used for chemical production's easy clearance impurity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114105393A (en) | 2022-03-01 |
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