CN109973810A - A kind of dual-valve body drain valve and its assembly method - Google Patents
A kind of dual-valve body drain valve and its assembly method Download PDFInfo
- Publication number
- CN109973810A CN109973810A CN201910321005.7A CN201910321005A CN109973810A CN 109973810 A CN109973810 A CN 109973810A CN 201910321005 A CN201910321005 A CN 201910321005A CN 109973810 A CN109973810 A CN 109973810A
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- Prior art keywords
- valve
- valve body
- circle
- lumen
- flap
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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
- F16K25/00—Details relating to contact between valve members and seat
- F16K25/005—Particular materials for seats or closure elements
-
- 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
- F16K27/0209—Check valves or pivoted valves
- F16K27/0227—Check valves or pivoted valves with the valve members swinging around an axis located at the edge of or outside the valve member
-
- 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
- F16K33/00—Floats for actuation of valves or other apparatus
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
-
- 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
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/20—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by floats
- F16T1/22—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by floats of closed-hollow-body type
- F16T1/24—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by floats of closed-hollow-body type using levers
-
- 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
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/38—Component parts; Accessories
- F16T1/383—Valve closing members or valve seats
-
- 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
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/38—Component parts; Accessories
- F16T1/386—Actuating mechanisms for lift valves
Abstract
The present invention relates to a kind of dual-valve body drain valve and its assembly methods, it is characterized by also including outer valves and inner valve body, intake channel is equipped with inside the outer valve, into anti-scour trench, outer valve lumen, anti-scour trench out, exit passageway, it is circular groove structure into anti-scour trench, it is arranged between intake channel and outer valve lumen, anti-scour trench is circular groove structure out, it is arranged between exit passageway and outer valve lumen, the inner valve body is at barrel type structure, and it is laterally disposed in outer valve lumen, valve axis 360 degree rotation in outer valve body middle chamber within internal valve physical efficiency, the floating ball, connecting rod, flap and valve seat are all disposed in inner valve body lumen, the outlet side bottom of interior valve body middle chamber is arranged in valve seat, inlet opening is equipped at interior valve body import side end face, the inlet opening is communicated with into anti-scour trench, it is equipped with and adjusts at inner valve body outer circle Heart block has the advantages that installation position is unaffected, vapor-proof leaking performance is good and its assembly method has precision height, qualification rate high.
Description
Technical field
The present invention relates to a kind of drain valve more particularly to a kind of dual-valve body drain valve and its assembly methods.
Background technique
Drain valve is a kind of valve, also referred to as steam trap, and drain valve is that the condensed water in vapour system is discharged as early as possible, together
When be automatically prevented from the leakage of steam to the maximum extent.The various types of drain valve, the performance having nothing in common with each other, wherein mechanical type is hydrophobic
Valve includes bucket type and float-ball type structure, and common ground is in use, staving or floating to be pushed by the buoyancy of condensed water
The raising and lowering of ball, staving or floating ball must be vertically installed at valve cavity, the disadvantage is that: valve during installation, Zhi Nengshi
It is installed by specified direction, if client's installation space will increase installation difficulty, seriously not enough or when assigned direction being wanted to install
When the type drain valve be not available.
Summary of the invention
For technological deficiency existing in the prior art, the present invention provides that a kind of installation position is unaffected, vapor-proof is let out
Leak good performance, a kind of dual-valve body drain valve with long service life and its assembly method.
The present invention realizes by following technical solution:
A kind of dual-valve body drain valve, comprising: floating ball, connecting rod, flap and valve seat, valve seat upper surface are equipped with sealing surface of seat,
Flap lower end surface is equipped with can match the valve clack sealing surface to form sealing with sealing surface of seat, and one end of connecting rod and flap connect
It connects, the other end of connecting rod is connect with floating ball, it is characterised in that: further include outer valve and inner valve body, set inside the outer valve
There is intake channel, into anti-scour trench, outer valve lumen, out anti-scour trench, exit passageway, is circular groove structure into anti-scour trench, if
It sets between intake channel and outer valve lumen, anti-scour trench is circular groove structure out, is arranged in exit passageway and outer valve
Between lumen, the inner valve body is laterally disposed in outer valve lumen at barrel type structure, and valve axis is outside within internal valve physical efficiency
360 degree rotation in valve body middle chamber, inner valve body inside are equipped with inner valve body lumen, and the outer valve lumen two end faces are respectively equipped with pipe
Formula structure into and out of guide collar, be additionally provided in the outer valve lumen tubular structure into and out of positioning sleeve, into positioning sleeve one end
Inner circle forms rotary steering with into guide collar outer circle, forms rotary steering into positioning sleeve other end inner circle and inner valve body outer circle, out
Positioning sleeve one end inner circle forms rotary steering with guide collar outer circle out, and positioning sleeve other end inner circle and inner valve body outer circle, which are formed, out revolves
It transduces to the outer valve lumen is interior to be equipped with into and out of rolling bearing, is fixed at outside inner valve body into and out of rolling bearing inner ring
At circle, it is fixed at outer valve lumen wall portion into and out of housing washer, the floating ball, connecting rod, flap and valve seat are all set
It sets in interior valve body middle chamber, the outlet side bottom of interior valve body middle chamber is arranged in valve seat, is equipped with apopore, the apopore inside valve seat
It is connected to out anti-scour trench, the flap is arranged right above valve seat, and forms hinge with the outlet side end face of inner valve body above valve seat
Formula connection, is equipped with inlet opening, which communicates with into anti-scour trench, set at inner valve body outer circle at the inlet-side end surface of inner valve body
There is aligning block, which is arranged in the underface of floating ball.
Further, the flap upper end surface be equipped with flap seat, the flap seat can under the active force of steam more into
One step makes valve clack sealing surface compress sealing surface of seat.
Further, it is described into positioning sleeve inner circle and between guide collar outer circle be equipped with O-ring seal, into positioning sleeve
It is round be equipped with O-ring seal between inner valve body outer circle, it is described to go out positioning sleeve inner circle and to be equipped with O-shaped sealing between guide collar outer circle out
Circle is equipped with O-ring seal out between positioning sleeve inner circle and inner valve body outer circle.
Further, the floating ball is interior hollow structure.
Further, the flap material is perfluoroelastomers.
Further, the outer valve is made of left and right outer valve, and left and right outer valve connects by the way that standard stud is fixed
It connects.
A kind of dual-valve body drain valve assembly method of the present invention is as follows:
1. the assembling of inner valve body, floating ball, connecting rod, flap and valve seat: the outlet side bottom of interior valve body middle chamber is arranged in valve seat, protects
It is face-up to hold valve base sealing, flap is arranged right above valve seat and is integrally placed in inner valve body lumen, in flap and valve seat top
The outlet side end face of valve body forms hinged connection, keeps valve clack sealing surface direction, when pressing down on flap, flap can be made to seal
The tight sealing surface of seat of face pressure, one end of connecting rod are connect with floating ball, and are placed in inner valve body lumen together, connecting rod it is another
End is connect with flap；
2. the assembling of aligning block and inner valve body: aligning block is arranged at inner valve body outer circle, and the underface of floating ball is arranged in；
3. into positioning sleeve, go out positioning sleeve, into rolling bearing, go out rolling bearing and inner valve body assembling: into one end of positioning sleeve
Round formed with inner valve body input end outer circle is rotatably oriented to connection, out one end inner circle of positioning sleeve and inner valve body outlet end outer ring
At rotary guiding connection, inner circle and inner valve body outer circle into and out of rolling bearing form a fixed connection；
4. overall package: the component that serial number 3 is completed is integrally placed in outer valve lumen, make other end inner circle into positioning sleeve with
It is matched into guide collar outer circle, and forms rotary guiding, the other end inner circle and guide collar outer circle out for using positioning sleeve match
Close, and form rotary guiding, be fixedly connected into and out of the outer ring of rolling bearing with outer valve lumen wall portion, keep inlet opening and
It is connected into anti-scour trench, apopore is connected with anti-scour trench out；
5. pressure testing: carrying out pressurized seal test: from intake channel input air, slowly boosting to test pressure, observe
There is No leakage in mouth channel；
6. a kind of dual-valve body drain valve of pass the test is dried up, outer surface japanning, storage.
The present invention has the advantages that the design of inside and outside valve body and aligning block, during installation, valve can be by internal valve body axis
360 degree rotation has the advantages that not limited by direction;The design of flap seat, when interior valve body middle chamber enters steam, flap seat
Valve seat can be compressed downwards under the action of steam pressure with flap, there is further enhancing valve clack sealing surface and valve base sealing
Seal pressure between face, better tightness;Into and out of the design of anti-scour trench, having was prevented in the moment of valve opening or closing
Water flow disorder and the advantages of prevent water hammer from generating, this assembly method has the advantages that precision is high, qualification rate is high.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of dual-valve body drain valve of the present invention.
Specific embodiment
As can be seen from FIG. 1, a kind of dual-valve body drain valve, comprising: floating ball 6, connecting rod 7, flap 8 and valve seat 13, valve seat
13 upper surfaces are equipped with sealing surface of seat, and 8 lower end surface of flap is equipped with can match the flap to form sealing sealing with sealing surface of seat
The one end in face, connecting rod 7 is connect with flap 8, and the other end of connecting rod 7 is connect with floating ball 6, further includes outer valve 3 and inner valve body
4, be equipped with inside the outer valve 3 intake channel 1, into anti-scour trench 2, outer valve lumen 5, go out anti-scour trench 10, exit passageway 11, into
Anti-scour trench 2 is circular groove structure, is arranged between intake channel 1 and outer valve lumen 5, and anti-scour trench 10 is arc-shaped recessed out
Slot structure is arranged between exit passageway 11 and outer valve lumen 5, and the inner valve body 4 is laterally disposed in outer valve at barrel type structure
In body lumen 5, inner valve body 4 can with 4 axis of inner valve body in outer valve body middle chamber 5 360 degree rotation, internal valve is equipped with inside inner valve body 4
Body lumen 16,5 two end faces of outer valve lumen be respectively equipped with tubular structure into and out of guide collar, the outer valve lumen 5
Inside be additionally provided with tubular structure into and out of positioning sleeve 19,12, into 19 one end inner circle of positioning sleeve with form rotation into guide collar outer circle and lead
To into 19 other end inner circle of positioning sleeve and 4 outer circle of inner valve body formation rotary steering, out 12 one end inner circle of positioning sleeve and out guide collar
Outer circle forms rotary steering, and 12 other end inner circle of positioning sleeve and 4 outer circle of inner valve body form rotary steering, the outer valve lumen out
5 are equipped with into and out of rolling bearing 18,14, are fixed at 4 outer circle of inner valve body into and out of rolling bearing 18,14 inner rings, into and out of rolling
Dynamic bearing 18,14 outer rings are fixed at 5 wall portion of outer valve lumen, and the floating ball 6, connecting rod 7, flap 8 and valve seat 13 are all set
It sets in interior valve body middle chamber 16, the outlet side bottom of interior valve body middle chamber 5 is arranged in valve seat 13, is equipped with apopore inside valve seat 13
15, which is connected to out anti-scour trench 10, the setting of flap 8 right above valve seat 13, and with 13 top inner valve body 4 of valve seat
Outlet side end face formed hinged connection, at the inlet-side end surface of inner valve body 4 be equipped with inlet opening 20, the inlet opening 20 with into
Anti-scour trench 2 communicates, and aligning block 17 is equipped at 4 outer circle of inner valve body, which is arranged in the underface of floating ball 6.
A kind of dual-valve body drain valve assembly method of the present invention is as follows:
1. the assembling of inner valve body 4, floating ball 6, connecting rod 7, flap 8 and valve seat 13: going out for interior valve body middle chamber 16 is arranged in valve seat 13
Mouth side bottom, keeps valve base sealing face-up, and the setting of flap 8 is right above valve seat 13 and is integrally placed in inner valve body lumen 16,
The outlet side end face of flap 8 and 13 top inner valve body 4 of valve seat forms hinged connection, keeps valve clack sealing surface direction, presses downwards
When pressure valve valve 8, valve clack sealing surface can be made to compress sealing surface of seat, one end of connecting rod 7 is connect with floating ball 6, and is placed in together
In inner valve body lumen 16, the other end of connecting rod 7 is connect with flap 8；
2. the assembling of aligning block 17 and inner valve body 4: aligning block 17 be arranged at 4 outer circle of inner valve body, and be arranged in floating ball 6 just under
Side；
3. into positioning sleeve 19, go out positioning sleeve 12, into rolling bearing 18, go out rolling bearing 14 and inner valve body 4 assembling: into positioning sleeve
19 one end inner circle and 4 input end outer circle of inner valve body forms rotary guiding and connects, out one end inner circle and internal valve of positioning sleeve 12
4 outlet end outer circle of body forms rotary guiding connection, and inner circle and 4 outer circle of inner valve body into and out of rolling bearing 18,14 form fixation
Connection；
4. overall package: the component that serial number 3 is completed being integrally placed in outer valve lumen 5, is made into the other end of positioning sleeve 19
Circle is matched with into guide collar outer circle, and forms rotary guiding, uses the other end inner circle of positioning sleeve 12 and out outside guide collar
Circle matches, and forms rotary guiding, is fixedly connected into and out of the outer ring of rolling bearing 18,14 with 5 wall portion of outer valve lumen,
Inlet opening 20 is kept to be connected with into anti-scour trench 2, apopore 15 is connected with anti-scour trench 10 out；
5. pressure testing: carrying out pressurized seal test: from 1 input air of intake channel, slowly boosting to test pressure, observe
There is No leakage in mouth channel 11；
6. a kind of dual-valve body drain valve of pass the test is dried up, outer surface japanning, storage.
When valve is not turned on, condensed water, which passes through from intake channel into anti-scour trench and inlet opening, to be entered in inner valve body
Chamber, when the condensed water of internal valve intracoelomic cavity slowly when increasing, floating ball floats up under the buoyancy of condensed water, at this time band
Dynamic connecting rod and flap rotate clockwise formula unlatching, and condensed water passes through anti-scour trench and outlet channels discharge from apopore, due to
Into and out of anti-scour trench groove structure in the arc-shaped, the disorder of water flow is prevented.
When the condensed water of internal valve intracoelomic cavity is reduced, floating ball is reduced by the buoyancy of condensed water, and floating ball decline drives simultaneously
Connecting rod and flap rotate counterclockwise, and the gap between valve clack sealing surface and sealing surface of seat reduces gradually, work as valve clack sealing surface
When re-forming sealing with sealing surface of seat, valve is closed, at this time due to preventing into and out of anti-scour trench groove structure in the arc-shaped
The generation of water hammer.
During the installation process, which should be transversely mounted, and rotate the valve unspecified angle with the valve axis, floating ball is in aligning block
Under effect, the most bottom position of inner valve body lumen can be rested on.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (7)
1. a kind of dual-valve body drain valve, comprising: floating ball, connecting rod, flap and valve seat, valve seat upper surface are equipped with sealing surface of seat,
Flap lower end surface is equipped with can match the valve clack sealing surface to form sealing with sealing surface of seat, and one end of connecting rod and flap connect
It connects, the other end of connecting rod is connect with floating ball, it is characterised in that: further include outer valve and inner valve body, set inside the outer valve
There is intake channel, into anti-scour trench, outer valve lumen, out anti-scour trench, exit passageway, is circular groove structure into anti-scour trench, if
It sets between intake channel and outer valve lumen, anti-scour trench is circular groove structure out, is arranged in exit passageway and outer valve
Between lumen, the inner valve body is laterally disposed in outer valve lumen at barrel type structure, and valve axis is outside within internal valve physical efficiency
360 degree rotation in valve body middle chamber, inner valve body inside are equipped with inner valve body lumen, and the outer valve lumen two end faces are respectively equipped with pipe
Formula structure into and out of guide collar, be additionally provided in the outer valve lumen tubular structure into and out of positioning sleeve, into positioning sleeve one end
Inner circle forms rotary steering with into guide collar outer circle, forms rotary steering into positioning sleeve other end inner circle and inner valve body outer circle, out
Positioning sleeve one end inner circle forms rotary steering with guide collar outer circle out, and positioning sleeve other end inner circle and inner valve body outer circle, which are formed, out revolves
It transduces to the outer valve lumen is interior to be equipped with into and out of rolling bearing, is fixed at outside inner valve body into and out of rolling bearing inner ring
At circle, it is fixed at outer valve lumen wall portion into and out of housing washer, the floating ball, connecting rod, flap and valve seat are all set
It sets in interior valve body middle chamber, the outlet side bottom of interior valve body middle chamber is arranged in valve seat, is equipped with apopore, the apopore inside valve seat
It is connected to out anti-scour trench, the flap is arranged right above valve seat, and forms hinge with the outlet side end face of inner valve body above valve seat
Formula connection, is equipped with inlet opening, which communicates with into anti-scour trench, set at inner valve body outer circle at the inlet-side end surface of inner valve body
There is aligning block, which is arranged in the underface of floating ball.
2. a kind of dual-valve body drain valve according to claim 1, it is characterised in that: the flap upper end surface is equipped with flap
Seat, the flap seat can further make valve clack sealing surface compress sealing surface of seat under the active force of steam.
3. a kind of dual-valve body drain valve according to claim 1, it is characterised in that: it is described into positioning sleeve inner circle with into guiding
Enclose outer circle between be equipped with O-ring seal, between positioning sleeve inner circle and inner valve body outer circle be equipped with O-ring seal, it is described go out position
It covers inner circle and is equipped with O-ring seal between guide collar outer circle out, be equipped with O-shaped sealing between positioning sleeve inner circle and inner valve body outer circle out
Circle.
4. a kind of dual-valve body drain valve according to claim 1, it is characterised in that: the floating ball is interior hollow structure.
5. a kind of dual-valve body drain valve according to claim 1, it is characterised in that: the flap material is perfluoroether rubber
Glue.
6. a kind of dual-valve body drain valve according to claim 1, it is characterised in that: the outer valve is by left and right outer valve
Composition, left and right outer valve are fixedly connected by standard stud.
7. a kind of assembly method of dual-valve body drain valve described in claim 1 is as follows:
1. the assembling of inner valve body, floating ball, connecting rod, flap and valve seat: the outlet side bottom of interior valve body middle chamber is arranged in valve seat, protects
It is face-up to hold valve base sealing, flap is arranged right above valve seat and is integrally placed in inner valve body lumen, in flap and valve seat top
The outlet side end face of valve body forms hinged connection, keeps valve clack sealing surface direction, when pressing down on flap, flap can be made to seal
The tight sealing surface of seat of face pressure, one end of connecting rod are connect with floating ball, and are placed in inner valve body lumen together, connecting rod it is another
End is connect with flap；
2. the assembling of aligning block and inner valve body: aligning block is arranged at inner valve body outer circle, and the underface of floating ball is arranged in；
3. into positioning sleeve, go out positioning sleeve, into rolling bearing, go out rolling bearing and inner valve body assembling: into one end of positioning sleeve
Round formed with inner valve body input end outer circle is rotatably oriented to connection, out one end inner circle of positioning sleeve and inner valve body outlet end outer ring
At rotary guiding connection, inner circle and inner valve body outer circle into and out of rolling bearing form a fixed connection；
4. overall package: the component that serial number 3 is completed is integrally placed in outer valve lumen, make other end inner circle into positioning sleeve with
It is matched into guide collar outer circle, and forms rotary guiding, the other end inner circle and guide collar outer circle out for using positioning sleeve match
Close, and form rotary guiding, be fixedly connected into and out of the outer ring of rolling bearing with outer valve lumen wall portion, keep inlet opening and
It is connected into anti-scour trench, apopore is connected with anti-scour trench out；
5. pressure testing: carrying out pressurized seal test: from intake channel input air, slowly boosting to test pressure, observe
There is No leakage in mouth channel；
6. a kind of dual-valve body drain valve of pass the test is dried up, outer surface japanning, storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910321005.7A CN109973810B (en) | 2019-04-21 | 2019-04-21 | Double-valve-body drain valve and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910321005.7A CN109973810B (en) | 2019-04-21 | 2019-04-21 | Double-valve-body drain valve and assembling method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109973810A true CN109973810A (en) | 2019-07-05 |
| CN109973810B CN109973810B (en) | 2022-03-11 |
Family
ID=67085466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910321005.7A Active CN109973810B (en) | 2019-04-21 | 2019-04-21 | Double-valve-body drain valve and assembling method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109973810B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108095A (en) * | 2021-04-09 | 2021-07-13 | 今创集团股份有限公司 | Drainage device capable of preventing positive and negative air pressure |
| CN113405015A (en) * | 2021-06-25 | 2021-09-17 | 华能秦煤瑞金发电有限责任公司 | Steam trap based on safety improvement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514778A (en) * | 2009-01-12 | 2009-08-26 | 甘肃红峰机械有限责任公司 | Super large discharge lever float ball type steam drain valve |
| JP2010185555A (en) * | 2009-02-13 | 2010-08-26 | Tlv Co Ltd | Lever float type drain trap |
| CN105627082A (en) * | 2014-10-12 | 2016-06-01 | 江苏江恒阀业有限公司 | Sliding-flap free-float type |
| CN206176028U (en) * | 2016-11-02 | 2017-05-17 | 北京疏水阀门厂 | Two balance lever float ball trap of big discharge capacity |
| CN107061981A (en) * | 2017-04-21 | 2017-08-18 | 湖州职业技术学院 | A kind of pilot-operated type steam trap valve |
-
2019
- 2019-04-21 CN CN201910321005.7A patent/CN109973810B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514778A (en) * | 2009-01-12 | 2009-08-26 | 甘肃红峰机械有限责任公司 | Super large discharge lever float ball type steam drain valve |
| JP2010185555A (en) * | 2009-02-13 | 2010-08-26 | Tlv Co Ltd | Lever float type drain trap |
| CN105627082A (en) * | 2014-10-12 | 2016-06-01 | 江苏江恒阀业有限公司 | Sliding-flap free-float type |
| CN206176028U (en) * | 2016-11-02 | 2017-05-17 | 北京疏水阀门厂 | Two balance lever float ball trap of big discharge capacity |
| CN107061981A (en) * | 2017-04-21 | 2017-08-18 | 湖州职业技术学院 | A kind of pilot-operated type steam trap valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108095A (en) * | 2021-04-09 | 2021-07-13 | 今创集团股份有限公司 | Drainage device capable of preventing positive and negative air pressure |
| CN113108095B (en) * | 2021-04-09 | 2023-09-29 | 今创集团股份有限公司 | Positive and negative air pressure prevention drainage device |
| CN113405015A (en) * | 2021-06-25 | 2021-09-17 | 华能秦煤瑞金发电有限责任公司 | Steam trap based on safety improvement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109973810B (en) | 2022-03-11 |
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