CN206468856U - It is a kind of based on pressure principle single-chamber integral type total head air inlet and exhaust valve - Google Patents
It is a kind of based on pressure principle single-chamber integral type total head air inlet and exhaust valve Download PDFInfo
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- CN206468856U CN206468856U CN201621355623.1U CN201621355623U CN206468856U CN 206468856 U CN206468856 U CN 206468856U CN 201621355623 U CN201621355623 U CN 201621355623U CN 206468856 U CN206468856 U CN 206468856U
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Abstract
It is a kind of based on pressure principle single-chamber integral type total head air inlet and exhaust valve, belong to pipe safety protection technique field.It include main valve cavity, main valve piston, hollow float and the air slot being arranged in the main valve chamber body, the piston spring that is arranged in the main valve piston and with press mechanism, be arranged on the cylinder on the main valve piston top.The utility model is utilized with pressure principle, set on ball float top and match somebody with somebody press mechanism, distributed by the auto-control to gas flow, ball float is automatically returned to original position after first paragraph gas is excluded, carry out next section of exhaust, realize the continuous exhaust pneumatic wallop under the alternate operating mode of gas column, design science, principle is simple, and easy to process, intake and exhaust effect is good.
Description
Technical field
The utility model is related to a kind of air inlet and exhaust valve, specifically a kind of to enter row based on the single-chamber integral type total head with pressure principle
Air valve, belongs to pipe safety protection technique field.
Background technology
In large-scale irrigation engineering or long distance water transfer project, water is made in pressure flow impact interception air and cutout up again
Hammer is the emphasis of pipe-line system security protection, and gas accumulation influences flow in that can reduce the efficiency of pipeline flow and pump in pipeline
Accurate measurement, it is often more important that huge pressure oscillations can be produced when pipeline air exhaust water is not smooth, or even pipeline breaking can be caused, produce
Raw huge economic losses, it is known that 80% booster phenomenon is relevant with pipeline gassiness.Air inlet and exhaust valve is a kind of is used in purging line
Gas, at the same when occurring vacuum in pipeline into pipeline gas injection to prevent from producing the device of gas explosion and cut-off water hammer in pipeline.
Common air inlet and exhaust valve mainly has four classes in current China market：High pressure micro air inlet and exhaust valve, low-voltage high speed enter row
Air valve, combined type air inlet and exhaust valve and air-cylinder type air inlet and exhaust valve.Micro air inlet and exhaust valve exhaust outlet bore very little, is only available for pipeline
Micro exhaust during normal work, it is impossible to which discharge system runs for the first time, a large amount of gases for overhauling or producing during other operating modes.At a high speed
Air inlet and exhaust valve and combined type air inlet and exhaust valve can discharge a large amount of gases produced under above-mentioned operating mode, but run into the alternate operating mode of gas column
When, after drained first paragraph gas, ball float under big exhaust outlet will not open exhaust again because of the effect of gas support, so can not be carried out continuously
Exhaust.Air-cylinder type air inlet and exhaust valve is to overcome ball float because gas support acts on the problem of can not automatically opening up exhaust using cylinder principle,
But it still suffers from water leakage situation seriously, and the part such as pin, lever is easy to wear, the low problem of service life.And it is in actual production
During it is high to manufacturing technique requirent, production difficulty is very big.
Utility model content
The purpose of this utility model is：In large-scale irrigation pipe-networks engineering, the deficiency existed for existing air inlet and exhaust valve,
Row is entered based on the single-chamber integral type total head with pressure principle with reference to pressure principle research and development single-chamber integral type total head air inlet and exhaust valve-a kind of
Air valve, using with pressure principle, sets on ball float top and matches somebody with somebody press mechanism, is distributed by the auto-control to gas flow, makes ball float
Original position is automatically returned to after first paragraph gas is excluded, next section of exhaust is carried out, realizes the continuous row under the alternate operating mode of gas column
Gas, design science, principle is simple, and easy to process, intake and exhaust effect is good, has to the pipeline safety problem for solving extensive pipe network
Especially important realistic meaning.
The technical solution of the utility model is as follows：It is a kind of based on pressure principle single-chamber integral type total head air inlet and exhaust valve, bag
Cylinder, main valve cavity, main valve piston are included, the main valve cavity bottom, which is provided with main valve valve port, main valve chamber body, is provided with hollow float,
It is characterized in that, the main valve piston includes being provided with the top of cylinder piston, the piston boit being placed in cylinder cavity, the main valve cavity
Piston boit installing port, described piston boit one end is connected with cylinder piston, and the other end is stretched into main valve chamber body by installing port；It is described
Piston boit center is provided with valve piston, and valve piston one end is connected with hollow float, and the other end is connected to cylinder by piston spring and lived
Fill in bottom centre position；
Be provided with the piston boit and match somebody with somebody press mechanism, the mechanism includes three air guide channels, respectively connect main valve cavity with
The air guide channel I of valve piston cavity, the air guide channel II of connection valve piston cavity and cylinder, connection valve piston cavity and air
Small exhaust outlet, the cylinder sidewall is provided with the big exhaust outlet communicated with outside atmosphere, and cylinder head is provided with micro-exhaust valve；It is logical
The sink-float of hollow float is crossed, valve piston lifting is driven, so as to open and close corresponding air guide channel.
Further, side bottom is U-shaped air slot provided with section in the main valve chamber body, and air slot sidewall horizontal is opened up
Four osculums.
Further, the main valve piston also includes sealing baffle, and the baffle plate setting is lived in piston boit lower end, the cylinder
The vertical applied force area on surface is more than the vertical applied force area of the sealing baffle lower surface beyond the Great Wall.
Further, the sealing baffle is provided with sealing ring with main valve cavity contact position (i.e. at piston boit installing port).
Further, the junction of the air guide channel I and valve piston cavity is higher than air guide channel II and valve piston cavity
Junction；Junction of the junction higher than air guide channel I and valve piston cavity of the small exhaust outlet and valve piston cavity.
Further, connected at the top of the valve piston between piston spring bottom by connecting rod and supporting plate；The connecting rod
Length be equal to the junction of air guide channel II and valve piston cavity between the junction of small exhaust outlet and valve piston cavity away from
From, it is ensured that when air guide channel II is closed, gas can be discharged by small exhaust outlet, realize the micro exhaust under normal operation.
Further, the cylinder includes upper cylinder body and lower cylinder body two parts, is connected by bolt；The main valve cavity
Including upper valve body and lower valve body two parts, it is connected by bolt；The cylinder piston and the piston boit are also by bolt phase
Connection.
Further, the main valve valve port is arranged in the lower cavity wall of the main valve cavity, and main valve valve port passes through ring flange
Or be connected with externally threaded connecting tube with irrigation pipeline or supply channel.
Further, the main valve cavity uses cast steel material, and air slot is made with ball float using stainless steel material.
Compared with prior art, the utility model has the advantages that：
First, the most essential distinction of the utility model and other air inlet and exhaust valves is that this air inlet and exhaust valve make use of with pressure original
Reason, sets on ball float top and matches somebody with somebody press mechanism, realizes the auto-control to gas flow, is being not required to the situation of any external force effect
Under, ball float can automatically return to original position, so as to overcome ball float the problem of can not be resetted after discharging first paragraph gas.Design is skilful
It is wonderful, scientific in principle, it is easy to accomplish.
Second, the utility model can realize the high speed exhaust in the whole pressure limits of pipeline, when producing negative pressure in pipeline,
Air can be injected into pipeline, the water hammer produced to alleviate water column to hit boosts；When there is a large amount of gases in pipeline, no matter gas
Whether group presses, or with the presence or absence of the alternate situation of multistage gas column, is attained by the effect of high speed exhaust.
3rd, the utility model main valve chamber body is interior to be not present the structure members such as pin, lever, overcomes the base part long-term
It is immersed in easy-to-rust in water, lever construction unstable, the problem of exhaust effect is not good caused by situations such as easily occurring stuck enters
One step improves intake and exhaust effect of the present utility model.
4th, the utility model dexterously uses distributing valve structure, and the floating of valve piston is driven by ball float, can finally be closed
Air guide channel of the connection with press mechanism and air is closed, sealing leak preventing effect is reached, solves air inlet and exhaust valve normal in the course of the work
The seepy question of appearance.
5th, the utility model changes the flow direction that current enter main chamber valve body by way of setting air slot, eliminates
Current and gas directly impact the active force of ball float, solve hollow float easy quilt in the case of having high pressure, big pneumatic hammer or water hammer
The problem of compressive strain.
The problem of solving existing air inlet and exhaust valve exhaust effect difference under the alternate operating mode of gas column of the utility model novelty,
The popularization and application device has a high potential in large-scale irrigation pipe network system or water supply pipline system, will obtain significant economic society
Can benefit.
Brief description of the drawings
Fig. 1 is that the utility model is a kind of based on the single-chamber integral type total head air inlet and exhaust valve structural representation with pressure principle；
Fig. 2 (a) is high speed exhaust process schematic when system is run for the first time；
Micro exhaust process schematic diagram when Fig. 2 (b) is system worked well；
Fig. 2 (c) is leakproof process schematic when water is full of in main valve chamber body；
In figure：1 cylinder, 2 main valve cavitys, 3 piston boits, 4 cylinder pistons, 5 sealing baffles, 6 hollow floats, 7 air slots, 8
Air slot osculum, 9 micro-exhaust valves, 10 main valve valve ports, 11 big exhaust outlets, 12 sealing rings, 13 piston springs, 14 connection masters
Valve body be connected the air guide channel II for matching somebody with somebody press mechanism and cylinder with the air guide channel I, 15 with press mechanism, 16 small exhaust outlets, 17 small
Piston, 18 valve piston cavitys, 19 connecting rods, 20 supporting plates.
Embodiment
As shown in figure 1, a kind of based on the single-chamber integral type total head air inlet and exhaust valve with pressure principle, including main valve cavity 2, setting
Main valve piston 3, hollow float 6, air slot 7, the piston spring 13 being arranged in main valve piston in main valve chamber body and with pressure
Mechanism, the cylinder 1 for being arranged on main valve piston top.
Piston spring 13 is provided with main valve piston and with press mechanism, is relied primarily on hollow float with press mechanism and is driven small work
Plug, which is moved up and down, opens and closes air guide channel, realizes automatically adjusting for air flow direction.With there is three air guide channels in press mechanism, it is respectively
Connection valve body of main valve is with matching somebody with somebody the air guide channel I 14 of press mechanism, being connected and match somebody with somebody with press mechanism with the air guide channel II 15 of cylinder and connection
The small exhaust outlet 16 of press mechanism and air.
Hollow float 6 is connected by valve piston with laminated structure 3, and band is moved up and down with water level by hollow float 6
Dynamic distributing valve action.
The air slot 7 set in valve body of main valve, air slot changes the flow direction that current enter main chamber valve body, eliminate current and
Impulsive force of the gas directly to hollow float.Air slot sidewall horizontal opens up four draining apertures 8, when ball float is with water level decreasing
When, current can be discharged by osculum, ball float is returned to origin-location.
Cylinder head sets micro-exhaust valve 9, and the pressure-air for being collected in cylinder is slowly discharged, and delays while playing energy dissipating
The effect closed.
Main valve piston includes piston boit 3 and is separately positioned on the cylinder piston 4 and sealing baffle of piston boit upper and lower ends
5, the vertical applied force area of cylinder piston upper surface is more than the vertical applied force area of sealing baffle lower surface.
Sealing baffle is provided with sealing ring 12 with main valve cavity junction.
Cylinder 1 includes being bolted upper cylinder body and lower cylinder body together, and main valve cavity 4 includes being bolted
Upper valve body together and lower valve body, together with cylinder piston is bolted with piston boit.
Main valve valve port 10 is arranged in the lower cavity wall of main valve cavity, and main valve valve port is by ring flange or with externally threaded company
Adapter is connected with pipeline.
The air inlet and exhaust valve valve cavity main part of single-chamber integral type total head air inlet and exhaust valve uses cast steel material, air slot with
Ball float is made using stainless steel material.Main valve piston, cylinder assembly etc. can be made in the form of sub-assembly, and material is according to reality
It is required that determining.
The course of work of the utility model under each working condition is as follows：
(1) low-voltage high speed exhaust process：When starting water filling in pipe, ball float rests on lower position, and gas passes through air guide
Passage, imports via main valve cavity and matches somebody with somebody press mechanism, enters back into upper cylinder, and cylinder promotes big piston downward actuation, opens big row
Gas port, discharges large quantity of air.The process is mainly used to a large amount of gases produced when discharge system is run for the first time.
(2) high pressure micro exhaust process：When air is drained, valve internal water accumulation, ball float floats, and promotes valve piston to transport upwards
Dynamic, connection cylinder is closed with the air guide channel with press mechanism, and cylinder inner high voltage gas is slow by the micro exhaust outlet in cylinder top
Discharge, is acted on by valve body gas towing force, and big piston upwards are until close, a large amount of exhausts of stopping.Valve piston is continued up simultaneously
Motion, air guide channel of the connection with press mechanism and air is opened, and gas is discharged into air by small exhaust outlet, realizes that water is normal in pipe
Micro exhaust during conveying.
(3) sealing leakproof process：When being full of water in valve, valve piston is moved upwards, and press mechanism and main valve cavity are matched somebody with somebody in connection
Air guide channel close, then current cannot be introduced into press mechanism, reach the effect of sealing leakproof.
(4) continuous exhaust pneumatic wallop process：When next section of gas column arrives, because valve body is pipeline peak, gas is collected in valve
In vivo, the ponding between air slot and ball float is discharged from the small discharge outlet of air slot, ball float falls back to initial position, again may be used
High speed exhaust is carried out, next section of gas column is discharged, ball float is overcome because gas support acts on the problem of can not automatically opening up exhaust.
(5) air inlet tonifying Qi process：When pump stops, and negative pressure is produced in in-pipe flow space-time, or chance pipe, ball float declines, greatly
Exhaust Open, suction air ensures pipe safety.
Most essential distinction with other air inlet and exhaust valves is that this air inlet and exhaust valve is utilized with pressure principle, sets and matches somebody with somebody on ball float top
Press mechanism, is distributed by the auto-control to gas flow, ball float is automatically returned to original position after discharge first paragraph gas,
Next section of exhaust is carried out, the continuous exhaust pneumatic wallop under the alternate operating mode of gas column is realized, so as to overcome the problem of ball float can not return to reset.
The utility model eliminates lever in original air inlet and exhaust valve, sends the structure of nail to avoid the base part to soak for a long time simultaneously
Duck in drink easy-to-rust, lever construction is unstable, the problem of exhaust effect is not good caused by situations such as easily occurring stuck.This reality
Air guide channel of the connection with press mechanism and air can be finally closed by distributing valve structure with new, sealing leak preventing effect is reached,
Solve the seepy question that air inlet and exhaust valve often occurs in the course of the work.The utility model is changed by way of setting air slot
Current enter the flow direction of main chamber valve body, eliminate the active force that current and gas directly impact ball float, solve hollow float and exist
There is the problem of being easily crushed out of shape in the case of high pressure, big pneumatic hammer or water hammer.
The utility model is ingenious in design, scientific in principle, it is easy to accomplish, it can be achieved to arrange at a high speed in pipeline whole pressure limit
Gas, applied widely, intake and exhaust effect is good.
Claims (10)
1. a kind of lived based on the single-chamber integral type total head air inlet and exhaust valve with pressure principle, including cylinder (1), main valve cavity (2), main valve
Plug, the main valve cavity bottom, which is provided with main valve valve port (10), main valve chamber body, is provided with hollow float (6), it is characterized in that, the master
Valve piston is included at the top of cylinder piston (4), the piston boit (3) being placed in cylinder cavity, the main valve cavity provided with piston boit peace
Mouth is filled, described piston boit one end is connected with cylinder piston, and the other end is stretched into main valve chamber body by installing port；In the piston boit
The heart is provided with valve piston (17), and valve piston one end is connected with hollow float, and the other end is connected to cylinder by piston spring (13) and lived
Fill in bottom centre position；
It is provided with the piston boit and matches somebody with somebody press mechanism, the mechanism includes three air guide channels, respectively connects main valve cavity and small work
Fill in the air guide channel I (14), the air guide channel II (15) of connection valve piston cavity and cylinder, connection valve piston cavity of cavity (18)
With the small exhaust outlet (16) of air, the cylinder sidewall is provided with the big exhaust outlet (11) communicated with outside atmosphere, and cylinder head is set
It is equipped with micro-exhaust valve (9)；By the sink-float of hollow float, valve piston lifting is driven, so as to open and close corresponding air guide channel.
2. it is according to claim 1 a kind of based on the single-chamber integral type total head air inlet and exhaust valve with pressure principle, it is characterized in that, institute
It is U-shaped air slot (7) provided with section to state side bottom in main valve chamber body, and air slot sidewall horizontal opens up four osculums (8).
3. it is according to claim 1 a kind of based on the single-chamber integral type total head air inlet and exhaust valve with pressure principle, it is characterized in that, institute
Stating main valve piston also includes sealing baffle (5), the baffle plate setting in piston boit lower end, the cylinder piston upper surface it is vertical by
Power area is more than the vertical applied force area of the sealing baffle lower surface.
4. it is according to claim 3 a kind of based on the single-chamber integral type total head air inlet and exhaust valve with pressure principle, it is characterized in that, institute
State sealing baffle and be provided with sealing ring (12) with main valve cavity contact position.
5. it is according to claim 1 a kind of based on the single-chamber integral type total head air inlet and exhaust valve with pressure principle, it is characterized in that, institute
State junction of the junction higher than air guide channel II and valve piston cavity of air guide channel I and valve piston cavity；The small exhaust
Junction of the junction higher than air guide channel I and valve piston cavity of mouth and valve piston cavity.
6. it is according to claim 1 a kind of based on the single-chamber integral type total head air inlet and exhaust valve with pressure principle, it is characterized in that, institute
State and connected at the top of valve piston between piston spring bottom by connecting rod (19) and supporting plate (20)；The length of connecting rod is equal to air guide
The junction of passage II and valve piston cavity is the distance between to small exhaust outlet and the junction of valve piston cavity, it is ensured that air guide is logical
When road II is closed, gas can be discharged by small exhaust outlet, realize the micro exhaust under normal operation.
7. it is according to claim 1 a kind of based on the single-chamber integral type total head air inlet and exhaust valve with pressure principle, it is characterized in that, institute
Stating cylinder includes upper cylinder body and lower cylinder body two parts, is connected by bolt；The main valve cavity includes upper valve body and lower valve body
Two parts, are connected by bolt；The cylinder piston is connected with the piston boit also by bolt.
8. it is according to claim 1 a kind of based on the single-chamber integral type total head air inlet and exhaust valve with pressure principle, it is characterized in that, institute
State main valve valve port to be arranged in the lower cavity wall of the main valve cavity, main valve valve port is by ring flange or with externally threaded connecting tube
It is connected with irrigation pipeline or supply channel.
9. it is according to claim 1 a kind of based on the single-chamber integral type total head air inlet and exhaust valve with pressure principle, it is characterized in that, institute
State main valve cavity and use cast steel material.
10. it is according to claim 2 a kind of based on the single-chamber integral type total head air inlet and exhaust valve with pressure principle, it is characterized in that,
The air slot is made with ball float using stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621355623.1U CN206468856U (en) | 2016-12-12 | 2016-12-12 | It is a kind of based on pressure principle single-chamber integral type total head air inlet and exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621355623.1U CN206468856U (en) | 2016-12-12 | 2016-12-12 | It is a kind of based on pressure principle single-chamber integral type total head air inlet and exhaust valve |
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| Publication Number | Publication Date |
|---|---|
| CN206468856U true CN206468856U (en) | 2017-09-05 |
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ID=59710853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621355623.1U Withdrawn - After Issue CN206468856U (en) | 2016-12-12 | 2016-12-12 | It is a kind of based on pressure principle single-chamber integral type total head air inlet and exhaust valve |
Country Status (1)
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| CN (1) | CN206468856U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402440A (en) * | 2016-12-12 | 2017-02-15 | 扬州大学 | Single-cavity integrated full-pressure gas inlet and outlet valve based on pressure distribution principle and application method of gas inlet and outlet valve |
| CN108730258A (en) * | 2018-05-28 | 2018-11-02 | 中国工程物理研究院化工材料研究所 | A kind of high-speed cylinder |
| CN111895164A (en) * | 2020-07-16 | 2020-11-06 | 中国船舶重工集团公司第七0七研究所九江分部 | Automatic exhaust valve |
-
2016
- 2016-12-12 CN CN201621355623.1U patent/CN206468856U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402440A (en) * | 2016-12-12 | 2017-02-15 | 扬州大学 | Single-cavity integrated full-pressure gas inlet and outlet valve based on pressure distribution principle and application method of gas inlet and outlet valve |
| CN106402440B (en) * | 2016-12-12 | 2018-09-28 | 扬州大学 | It is a kind of based on pressure principle single-chamber integral type total head air inlet and exhaust valve and its application process |
| CN108730258A (en) * | 2018-05-28 | 2018-11-02 | 中国工程物理研究院化工材料研究所 | A kind of high-speed cylinder |
| CN108730258B (en) * | 2018-05-28 | 2019-12-24 | 中国工程物理研究院化工材料研究所 | High-speed cylinder |
| CN111895164A (en) * | 2020-07-16 | 2020-11-06 | 中国船舶重工集团公司第七0七研究所九江分部 | Automatic exhaust valve |
| CN111895164B (en) * | 2020-07-16 | 2022-07-26 | 中国船舶重工集团公司第七0七研究所九江分部 | Automatic exhaust valve |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170905 Effective date of abandoning: 20180928 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170905 Effective date of abandoning: 20180928 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |