CN110332333A - A kind of interface valve and its fault early warning method - Google Patents
A kind of interface valve and its fault early warning method Download PDFInfo
- Publication number
- CN110332333A CN110332333A CN201910552393.XA CN201910552393A CN110332333A CN 110332333 A CN110332333 A CN 110332333A CN 201910552393 A CN201910552393 A CN 201910552393A CN 110332333 A CN110332333 A CN 110332333A
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- China
- Prior art keywords
- diaphragm
- piston diaphragm
- piston
- valve body
- liquid level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a kind of interface valves, the valve body that there is flange hole including top and the piston diaphragm in the valve body, the roof of the piston diaphragm and valve body surrounds a diaphragm cavity, air-pressure chamber is provided with above the valve body, the air-pressure chamber is connected by the flange hole with the diaphragm cavity, it is characterized by: the piston diaphragm includes first piston diaphragm and the second piston diaphragm that is sleeved on outside first piston diaphragm, it is provided with liquid level water tank on the outside of the valve body, is filled with water in liquid level water tank.The invention enables interface valves can be found in time at damage initial stage, to actively execute maintenance measure.
Description
[technical field]
The present invention relates to the technical fields of valve, more particularly to a kind of interface valve and its fault early warning method.
[background technique]
Present draining field is routinely slided in valve body using ladder-like spool or taper spool, to realize to fluid
It opens or closes, but in vacuum sewerage field, conventional spool and valve body are either from corresponding speed, leakproofness and reliability
Etc. do not have ideal effect be developed vacuum interface valve in this context, have high response speed, high pass
The advantages of amount and high leakproofness.
However, vacuum interface valve in the prior art, since the switch speed of vacuum and standard atmospheric pressure is fast in vacuum chamber,
Meeting so that piston diaphragm in interface valve when opening and closing by strong impact, be easy to cause the fatigue of piston diaphragm
Damage, due to the fatigue damage of piston diaphragm be it is progressive, be not easy to be found at damage initial stage, thus maintenance can not be taken in time
Measure, after piston diaphragm occurs badly damaged, drainage will then be forced out of service, cause systematic influence.
[summary of the invention]
The object of the invention is to solve the problems of the prior art, a kind of interface valve and its fault early warning method are proposed,
Interface valve is found in time at damage initial stage, to actively execute maintenance measure.
To achieve the above object, the invention proposes a kind of interface valves, have the valve body of flange hole including top and are located at
The roof of piston diaphragm in the valve body, the piston diaphragm and valve body surrounds a diaphragm cavity, setting above the valve body
There is an air-pressure chamber, the air-pressure chamber is connected by the flange hole with the diaphragm cavity, it is characterised in that: the piston diaphragm includes
First piston diaphragm and the second piston diaphragm being sleeved on outside first piston diaphragm, the first piston diaphragm and second piston every
The upper edge of film extends to the outside, and row is embedded with a sealing ring, is provided on the sealing ring at an annular groove on the annular groove
Inlet opening in ring；The inner cavity top edge of the valve body is provided with the limiting slot of annular, and the body top is additionally provided with water flowing
Hole, the intracorporal limiting slot of described limbers one end connection valve, the other end are connected to outside valve body；The upper edge of the piston diaphragm with
The sealing ring is embedded into together in the limiting slot, is provided with liquid level water tank, the liquid level water tank and institute on the outside of the valve body
State the limbers connection on the outside of valve body；Water is filled in liquid level water tank, water flow to the limiting slot through the limbers, and passes through
Inlet opening reaches at the annular groove between the first piston diaphragm and second piston diaphragm in the ring of sealing ring.
Preferably, the first piston diaphragm is outer and the lower edge of second piston diaphragm is respectively arranged with the first crimping and the
Two crimpings will be located at the first crimping packet of the first piston diaphragm of inside positioned at the second crimping of the second piston diaphragm in outside
It wraps up in；Diaphragm bottom plate is also packaged at the lower edge of the first piston diaphragm.
Preferably, the diaphragm bottom plate is provided centrally with guide rod, the upper end of the guide rod passes through the valve body
It is reached after the flange hole at top in the air-pressure chamber.
Preferably, being provided with corking in the flange hole, venthole is provided in the corking, the guide rod passes through
The center of the corking, and be slidably connected with corking by rotary packing ring.
Preferably, being provided with pressure hole on the air-pressure chamber, negative pressure of vacuum or atmospheric pressure pass through the pressure hole and lead
Enter into air-pressure chamber.
Preferably, the air-pressure chamber top is provided with the first relief hole, the top end of the valve body is provided with the second relief hole；
Second relief hole is connected through the through-hole in corking with the plunger shaft by valve body.
Preferably, being provided with buffer spring between the rotary packing ring and the corking, the middle section of the guide rod is set
It is equipped with limited step, when piston diaphragm is upwards collected through, the limited step relies on the buffer spring after hitting rotary packing ring
Absorb Impact energy.
A kind of fault early warning method of interface valve, comprising the following steps:
A. first piston diaphragm and second piston diaphragm are checked, it is ensured that without breakage；
B. the initial liquid level of liquid level Water in Water Tanks is recorded；
C. the real-time level in routine observation liquid level water tank illustrates have liquid from first piston if real-time level declines
Interlayer between diaphragm and second piston diaphragm is lost, and side light piston diaphragm is by breakage.
Beneficial effects of the present invention: the present invention by by piston diaphragm be arranged to by first piston diaphragm and second piston every
The double-layer structure of film composition, and the liquid level water tank communicated with the faying face of two layers of piston diaphragm is set outside valve body, if first
When thering are any one or two layers to occur damaged in piston diaphragm and second piston diaphragm, by observing the liquid level of liquid level water tank just
It can timely find the damaging problem of piston diaphragm, thus can be in time to interface valve early stage piston diaphragm occurs damaged
It repairs, avoids influencing to use；Interface valve fault early warning method adopted by the present invention, using it is simple and cleverly structure as
Basis has very high practical value to make to find that the method for failure is very convenient.
Feature and advantage of the invention will be described in detail by embodiment combination attached drawing.
[Detailed description of the invention]
Fig. 1 is overall structure cross-sectional view of the invention；
Fig. 2 is the portion the B enlarged drawing in Fig. 1；
Fig. 3 is the portion the C enlarged drawing in Fig. 1；
Fig. 4 is the portion the D enlarged drawing in Fig. 1；
Fig. 5 is the portion the E enlarged drawing in Fig. 4；
Fig. 6 is the portion the F enlarged drawing in Fig. 1.
In figure: 1- valve body, 2- piston diaphragm, 3- air-pressure chamber, 4- liquid level water tank, 5- guide rod, 6- corking, 7- rotary packing ring,
8- flexibility hose clamp, 9- sealing ring, 101- sewage draining exit, 102- dirt inlet, the second relief hole of 103-, the limbers 104-, 105- limit
Slot, 201- first piston diaphragm, 202- second piston diaphragm, 203- diaphragm bottom plate, 204- annular groove, 205- diaphragm cavity, 301- gas
Press hole, the first relief hole of 302-, 601- venthole, inlet opening in 901- ring.
[specific embodiment]
Refering to fig. 1~Fig. 6, a kind of interface valve of the present invention have the valve body 1 of flange hole 106 including top and are located at described
The roof of piston diaphragm 2 in valve body, the piston diaphragm and valve body surrounds a diaphragm cavity 205, setting above the valve body
There is air-pressure chamber 3, the air-pressure chamber is connected by the flange hole with the diaphragm cavity, it is characterised in that: the piston diaphragm 2 is wrapped
The second piston diaphragm 202 for including first piston diaphragm 201 and being sleeved on outside first piston diaphragm, the first piston diaphragm and
The upper edge of two piston diaphragms extends to the outside, and row is embedded with a sealing ring 9 at an annular groove 204 on the annular groove, described close
Inlet opening 901 in ring are provided in seal ring；The inner cavity top edge of the valve body is provided with the limiting slot 105 of annular, the valve
It is additionally provided with limbers 104, the intracorporal limiting slot of described limbers one end connection valve at the top of body, the other end is connected to outside valve body
Portion；The upper edge of the piston diaphragm 2 is embedded into the limiting slot 105 together with the sealing ring 9, sets on the outside of the valve body 1
It is equipped with liquid level water tank 4, the liquid level water tank is connected to the limbers 104 on the outside of the valve body；Water, water are filled in liquid level water tank
In the ring for flowing to the limiting slot 105 through the limbers, and passing through sealing ring 9 inlet opening 901 reach the first piston every
At annular groove 204 between film 201 and second piston diaphragm 202.
The lower edge of the first piston diaphragm outer 201 and second piston diaphragm 202 be respectively arranged with the first crimping 201a and
Second crimping 202a will be located at the of the first piston diaphragm of inside positioned at the second crimping 202a of the second piston diaphragm in outside
One crimping 201a package；Diaphragm bottom plate 203 is also packaged at the lower edge of the first piston diaphragm；The mode of encapsulation can be spiral shell
Silk is fixed, glue seals or the connection types such as rivet clasp.
The C-shaped structure in the section of piston diaphragm 2 is set with a flexible hose clamp 8 in the interior recess of cylindrical side, described soft
Property hose clamp elasticity restraining force is generated radially to the side wall of piston diaphragm so that piston diaphragm 2 is under gas pressure, axis
To movement it is sensitiveer.
The diaphragm bottom plate 203 is provided centrally with guide rod 5, and the upper end of the guide rod passes through the body top
It is reached after flange hole 106 in the air-pressure chamber 3.
It is provided with corking 6 in the flange hole 106, venthole 601 is provided in the corking, the guide rod 5 passes through
The center of the corking 6, and be slidably connected with corking by rotary packing ring 7.
Pressure hole 301 is provided on the air-pressure chamber 3, negative pressure of vacuum or atmospheric pressure pass through the pressure hole 301 and import
Into air-pressure chamber 3.
3 top of air-pressure chamber is provided with the first relief hole 302, and 1 top of valve body is provided with the second relief hole 103；
Second relief hole 103 is connected through the venthole 601 in corking 6 with the plunger shaft 205 by valve body 1.
Buffer spring is provided between the rotary packing ring 7 and the corking 6, the middle section setting of the guide rod 5 is limited
Position step, when piston diaphragm 2 is upwards collected through, the limited step absorbs after hitting rotary packing ring 7 by the buffer spring
Impact energy.
A kind of fault early warning method of interface valve, comprising the following steps:
A. first piston diaphragm 201 and second piston diaphragm 202 are checked, it is ensured that without breakage；
B. the initial liquid level of water in liquid level water tank 4 is recorded；
C. the real-time level in routine observation liquid level water tank 4 illustrates have liquid from first piston if real-time level declines
Interlayer between diaphragm 201 and second piston diaphragm 202 is lost, and side light piston diaphragm 2 is by breakage.
The dirt inlet 102 and sewage draining exit 101 of valve body 1 are transferred to the process of on state by off-state:
Air pressure mouth 301 connects negative pressure of vacuum first, and diaphragm cavity 205 is evacuated, and air pressure, which is less than in valve body 1, is in piston
The air pressure of the exterior domain of diaphragm 2, therefore piston diaphragm 2 is shunk, diaphragm bottom plate 203 moves up, and guide rod 5 is synchronous to moving up
Dynamic, when the limited step on guide rod 5 resists rotary packing ring 7, the impact that rotary packing ring 7 is subject to is absorbed by buffer spring, according to
By the effect of buffer spring, piston diaphragm 2 reaches stress balance again, and after diaphragm bottom plate 203 moves up, dirt inlet 102 is then beaten
It opens, sewage draining exit 101 connects negative pressure of vacuum, then dirt just passes through after 1 inside of dirt inlet 102 and valve body, arranges from sewage draining exit 101
Out；
The dirt inlet 102 and sewage draining exit 101 of valve body 1 are transferred to the process of off-state by state:
Air pressure mouth 301 connects external atmosphere pressure first, and diaphragm cavity 205 switches to ambient atmosphere pressure condition by negative pressure state,
Due to the suction function in valve body 1 by sewage draining exit 101, so the air pressure in diaphragm cavity 205, which is greater than in valve body 1, is in piston diaphragm
The air pressure of 2 exterior domain, therefore piston diaphragm 2 expands, diaphragm bottom plate 203 moves down, and guide rod 5 moves downward simultaneously,
Diaphragm bottom plate 203 is displaced downwardly at dirt inlet 102 (bottom wall of valve body), and dirt inlet 102 is then blocked, then dirt inlet 102 and row
Dirty mouth 101 is then cut off.
The process of fault pre-alarming:
In normal state, the faying face of first piston diaphragm 201 and second piston diaphragm 202 is bonded, or has a small amount of water
In the form of moisture film between first piston diaphragm 201 and the faying face of second piston diaphragm 202, but because not revealing,
So the water level in liquid level water tank 4 is in settling position, when piston diaphragm 2 is after multiple folding switching, first piston diaphragm
201 and/or second piston diaphragm 202 occur breakage because of fatigue damage, then the water in liquid level water tank 4 will successively pass through water flowing
Hole 104, limiting slot 105 in the ring on sealing ring 9 after inlet opening 901 and annular groove 204, flow into first piston diaphragm 201 and second
It between the faying face of piston diaphragm 202, and is flowed out from damaged mouth, therefore by the SEA LEVEL VARIATION in observation liquid level water tank 4, just
The failure of interface valve can be judged.
The present invention by the double-layer structure that is arranged to be made of first piston diaphragm and second piston diaphragm by piston diaphragm,
And the liquid level water tank communicated with the faying face of two layers of piston diaphragm is set outside valve body, if first piston diaphragm and second piston
When having any one or two layers to occur damaged in diaphragm, the liquid level by observing liquid level water tank can timely find piston
The damaging problem of diaphragm, thus interface valve can be repaired in time early stage piston diaphragm occurs damaged, it avoids influencing
It uses；Interface valve fault early warning method adopted by the present invention, by it is simple and cleverly based on structure, thus make discovery therefore
The method of barrier is very convenient, has very high practical value.
Above-described embodiment is the description of the invention, is not limitation of the invention, after any pair of simple transformation of the present invention
Scheme all belong to the scope of protection of the present invention.
Claims (8)
1. a kind of interface valve, the valve body that there is flange hole including top and the piston diaphragm in the valve body, the piston
The roof of diaphragm and valve body surrounds a diaphragm cavity, is provided with air-pressure chamber above the valve body, the air-pressure chamber passes through the method
Flange aperture is connected with the diaphragm cavity, it is characterised in that: the piston diaphragm includes first piston diaphragm and is sleeved on first piston
The upper edge of second piston diaphragm outside diaphragm, the first piston diaphragm and second piston diaphragm extends to the outside, and row is at one
Annular groove is embedded with a sealing ring on the annular groove, is provided with inlet opening in ring on the sealing ring；It pushes up the inner cavity of the valve body
Portion edge is provided with the limiting slot of annular, and the body top is additionally provided with limbers, in limbers one end connection valve body
Limiting slot, the other end is connected to outside valve body；The upper edge of the piston diaphragm is embedded into the limit together with the sealing ring
In the slot of position, it is provided with liquid level water tank on the outside of the valve body, the liquid level water tank is connected to the limbers on the outside of the valve body；Liquid level
Water is filled in water tank, water flow to the limiting slot through the limbers, and in the ring for passing through sealing ring described in the arrival of inlet opening
At annular groove between first piston diaphragm and second piston diaphragm.
2. interface valve as described in claim 1, it is characterised in that: outside the first piston diaphragm and under second piston diaphragm
Along being respectively arranged with the first crimping and the second crimping, the second crimping positioned at the second piston diaphragm in outside will be located at the of inside
First crimping of one piston diaphragm wraps up；Diaphragm bottom plate is also packaged at the lower edge of the first piston diaphragm.
3. interface valve as claimed in claim 2, it is characterised in that: the diaphragm bottom plate is provided centrally with guide rod, described
The upper end of guide rod reaches in the air-pressure chamber after the flange hole of the body top.
4. interface valve as claimed in claim 3, it is characterised in that: be provided with corking in the flange hole, set in the corking
It is equipped with venthole, the guide rod passes through the center of the corking, and is slidably connected with corking by rotary packing ring.
5. interface valve as described in claim 1, it is characterised in that: be provided with pressure hole on the air-pressure chamber.
6. interface valve as claimed in claim 5, it is characterised in that: the air-pressure chamber top is provided with the first relief hole, described
Top end of the valve body is provided with the second relief hole；Second relief hole is connected through the through-hole in corking with the plunger shaft by valve body.
7. interface valve as described in claim 1, it is characterised in that: be provided with buffering between the rotary packing ring and the corking
The middle section of spring, the guide rod is provided with limited step, and when piston diaphragm is upwards collected through, the limited step shock is moved close
Impact energy is absorbed by the buffer spring after seal ring.
8. a kind of fault early warning method of interface valve, it is characterised in that: the following steps are included:
A. first piston diaphragm and second piston diaphragm are checked, it is ensured that without breakage；
B. the initial liquid level of liquid level Water in Water Tanks is recorded；
C. the real-time level in routine observation liquid level water tank illustrates have liquid from first piston diaphragm if real-time level declines
Interlayer between second piston diaphragm is lost, and side light piston diaphragm is by breakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910552393.XA CN110332333A (en) | 2019-06-25 | 2019-06-25 | A kind of interface valve and its fault early warning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910552393.XA CN110332333A (en) | 2019-06-25 | 2019-06-25 | A kind of interface valve and its fault early warning method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110332333A true CN110332333A (en) | 2019-10-15 |
Family
ID=68142617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910552393.XA Pending CN110332333A (en) | 2019-06-25 | 2019-06-25 | A kind of interface valve and its fault early warning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110332333A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319233A (en) * | 2019-06-25 | 2019-10-11 | 浙江广播电视大学 | A kind of shock proof vacuum interface valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19611664A1 (en) * | 1995-05-09 | 1996-11-14 | Arca Regler Gmbh | Valve with flow duct in valve housing |
| CN2447473Y (en) * | 2000-09-27 | 2001-09-12 | 环兴实业股份有限公司 | Glass fiber reinforced plastic underground oil tank with sandwith-forming internal and external wall |
| US20050115402A1 (en) * | 2003-12-02 | 2005-06-02 | Wanner Engineering, Inc. | Pump diaphragm rupture detection |
| CN205423116U (en) * | 2016-03-17 | 2016-08-03 | 浙江圃瑞药业有限公司 | 17 diaphragm pump is used in alpha - hydroxyl progesterone production |
| CN206291564U (en) * | 2016-12-26 | 2017-06-30 | 珠海华隆科技有限公司 | Leakage inspector and the cooling-water machine with it |
| CN210978606U (en) * | 2019-06-25 | 2020-07-10 | 浙江广播电视大学 | Interface valve |
-
2019
- 2019-06-25 CN CN201910552393.XA patent/CN110332333A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19611664A1 (en) * | 1995-05-09 | 1996-11-14 | Arca Regler Gmbh | Valve with flow duct in valve housing |
| CN2447473Y (en) * | 2000-09-27 | 2001-09-12 | 环兴实业股份有限公司 | Glass fiber reinforced plastic underground oil tank with sandwith-forming internal and external wall |
| US20050115402A1 (en) * | 2003-12-02 | 2005-06-02 | Wanner Engineering, Inc. | Pump diaphragm rupture detection |
| CN205423116U (en) * | 2016-03-17 | 2016-08-03 | 浙江圃瑞药业有限公司 | 17 diaphragm pump is used in alpha - hydroxyl progesterone production |
| CN206291564U (en) * | 2016-12-26 | 2017-06-30 | 珠海华隆科技有限公司 | Leakage inspector and the cooling-water machine with it |
| CN210978606U (en) * | 2019-06-25 | 2020-07-10 | 浙江广播电视大学 | Interface valve |
Non-Patent Citations (1)
| Title |
|---|
| 周敬宣等: "《真空排水系统的原理与设计》", 华中科技大学出版社, pages: 21 - 24 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319233A (en) * | 2019-06-25 | 2019-10-11 | 浙江广播电视大学 | A kind of shock proof vacuum interface valve |
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