CN113339619A - Air exhaust valve for adjusting water hammer - Google Patents
Air exhaust valve for adjusting water hammer Download PDFInfo
- Publication number
- CN113339619A CN113339619A CN202110583919.8A CN202110583919A CN113339619A CN 113339619 A CN113339619 A CN 113339619A CN 202110583919 A CN202110583919 A CN 202110583919A CN 113339619 A CN113339619 A CN 113339619A
- Authority
- CN
- China
- Prior art keywords
- exhaust
- valve
- floating
- cavity
- cover
- 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
Links
Images
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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
- F16L55/055—Valves therefor
-
- 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
- F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
- F16K24/04—Devices, e.g. valves, for venting or aerating enclosures for venting only
- F16K24/042—Devices, e.g. valves, for venting or aerating enclosures for venting only actuated by a float
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention discloses a water hammer-proof air-conditioning exhaust valve which comprises an exhaust valve main body and a valve cover, wherein a floating ball cavity and an annular cavity are arranged in the exhaust valve main body, a water inlet pipe end is arranged at the bottom of the floating ball cavity, a plurality of exhaust hollow parts are arranged at the top of the floating ball cavity, the valve cover is provided with an exhaust part and an exhaust cavity, a top sealing cover with lifting displacement and an annular sealing sheet used for sealing and matching are arranged in the exhaust cavity, a floating pressure connector connected with the top sealing cover is arranged in the valve cover, and an exposed floating pressure adjusting part is arranged at the top end of the floating pressure connector. The invention adopts the design that the floating pressure of the top sealing cover can be adjusted, can meet the adjustment requirements of different pressure relief pressures, realizes relative buffering, has obvious water hammer prevention effect, and can meet the flexible adjustment requirement of the floating pressure without disassembling the valve body. Possess displacement control function, play the secondary speed reduction effect through the displacement restriction, combine together with top closing cap floating pressure, satisfy abundant exhaust demand. Has wide application range and higher economic value.
Description
Technical Field
The invention relates to a water hammer-proof air adjusting exhaust valve, and belongs to the technical field of exhaust valves.
Background
The exhaust valve is applied to exhaust of pipelines such as an independent heating system, a central heating system, a heating boiler, a central air conditioner, a floor heating system, a solar heating system and the like. The water hammer phenomenon exists in the water network system, and the water hammer phenomenon refers to the phenomenon that in a closed pipeline system, large pressure fluctuation is caused due to the fact that the flow of fluid changes rapidly, and vibration is caused. Also known as water hammer. The instantaneous pressure can greatly exceed the normal pressure and often produce destructive effects. In order to prevent or reduce the water hammer, corresponding elimination measures can be taken, such as delaying the opening and closing time of a pipeline or a pump, installing a water hammer eliminator and the like.
The exhaust valve is additionally arranged in the water network system, so that the water hammer can be prevented or relieved, but the exhaust valve adopts an elastic blocking mechanism in the traditional mode, namely, the exhaust can be realized under a large water pressure state, the elastic blocking mechanism is easily damaged by instant high pressure, and in addition, the air flow flux is difficult to control.
To this condition, my department has proposed the utility model patent of application number 2020222982906, and it discloses a discharge valve for water net system, and it passes through the cooperation of floater with the sealed lid, can play quick pressure release and play the effect of eliminating the water hammer to a certain extent when water pressure rises in the twinkling of an eye. But this sealed lid mainly carries out pressure adjustment through the dead weight, along with water pressure rises, and air pressure can increase, and when discharge valve, its pressure is very big in the twinkling of an eye, and the floater rises can be very fast, and overcomes sealed lid dead weight pressure not enough, therefore sealed lid can rise to the pressurize position relatively fast, can't satisfy pressure adaptability demand in the twinkling of an eye, when the pressurize appears too fast, thereby can cause the too big pipe network of pressurize pressure to produce the influence. In this scheme, the sealed lid is located the cabin, hardly realizes the pressurize and adjusts.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a water hammer-proof air regulating exhaust valve aiming at the problem that the dead weight pressure regulating range of a sealing cover body in the traditional exhaust valve is solidified and can not meet the requirement of flexible and instant pressure releasing regulation.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the air exhaust valve for adjusting the water hammer comprises an exhaust valve main body and a valve cover, wherein a floating ball cavity with a floating ball body and an annular cavity positioned at the periphery of the floating ball cavity are arranged in the exhaust valve main body, a water inlet pipe end is arranged at the bottom of the floating ball cavity, a plurality of exhaust hollow parts communicated with the annular cavity are arranged at the top of the floating ball cavity, the valve cover is provided with an exhaust part and an exhaust cavity communicated with the floating ball cavity, a top sealing cover with lifting displacement and positioned at the top of the floating ball body and an annular sealing sheet which is arranged at the top of the top sealing cover and is used for being in sealing fit with the top sealing cover are arranged in the exhaust cavity,
the floating pressure adjusting device is characterized in that a floating pressure connecting body connected with the top sealing cover is arranged in the valve cover, and a floating pressure adjusting part penetrating through the valve cover is arranged at the top end of the floating pressure connecting body.
Preferably, the floating pressure connector comprises a connecting rod body connected with a matching shaft of the top sealing cover, a floating spring is sleeved on the periphery of the connecting rod body, the floating pressure adjusting part comprises a knob shaft end with lifting displacement, the top end of the connecting rod body is in sliding matching with the inside of the knob shaft end, and the floating spring is limited and arranged between the bottom end face of the knob shaft end and the top sealing cover.
Preferably, be equipped with on the connecting rod body and be located pressure regulating in the exhaust chamber ventilates the lid, be equipped with a plurality of air vents on the pressure regulating ventilates the lid, the spacing setting of floating spring is in the bottom face of knob axle head with between the pressure regulating ventilates the lid.
Preferably, the adjusting vent cover is provided with an air flow adjusting sheet which is overlapped, and the air flow adjusting sheet is provided with adjusting vent grooves which are arranged in one-to-one correspondence with the vent holes.
Preferably, a communicating channel for communicating the floating ball chamber with the exhaust chamber is arranged on the adapting shaft of the top sealing cover, a ventilating sheet groove for matching with the communicating channel is arranged on the floating ball body, and a reticular ventilating sheet is arranged in the ventilating sheet groove.
Preferably, the vent portion includes a plurality of vent holes disposed on the valve cover around the axial end of the knob.
Preferably, an axial exhaust gap communicated with the exhaust chamber is arranged between the valve cover and the exhaust valve main body.
Preferably, the valve cover is provided at an outer circumference thereof with an exhaust guide outer edge wall fitted to the exhaust gap.
The invention has the following beneficial effects:
1. the design that the floating pressure of adopting the top closing cap is adjustable can satisfy different pressure release pressure regulation demands, realizes buffering relatively, and the waterproof hammer effect is showing, need not to dismantle the valve body simultaneously and can satisfy the nimble regulation demand of floating pressure.
2. Possess displacement control function, play the secondary speed reduction effect through the displacement restriction, combine together with top closing cap floating pressure, satisfy abundant exhaust demand.
3. The method meets the requirements of various pipe network exhaust and waterproof hammer construction, has wide application range and higher economic value.
Drawings
Fig. 1 is a schematic sectional view showing the construction of a damper adjusting air release valve according to the present invention.
Detailed Description
The invention provides a water hammer resistant air regulating exhaust valve. The technical solution of the present invention is described in detail below with reference to the accompanying drawings so that it can be more easily understood and appreciated.
Waterproof hammer regulation air vent valve, as shown in fig. 1, including discharge valve main part 1 and valve gap 2, be equipped with the floater cavity 4 that possesses floater body 3 in the discharge valve main part 1 and be located the cyclic annular cavity 5 of floater cavity 4 periphery, the bottom of cyclic annular cavity 5 is equipped with flange tube end 6, the bottom of floater cavity 5 is equipped with inlet pipe end 7, the top is equipped with a plurality of exhaust fretwork portions 8 that are linked together with cyclic annular cavity 5, valve gap 2 possesses exhaust portion 9, the exhaust cavity 10 that is linked together with the floater cavity, be equipped with the top closing cap 11 that possesses the lift displacement that is located floater body 3 top in the exhaust cavity 10, set up at the cyclic annular gasket 12 that is used for with top closing cap looks seal and cooperates at top closing cap 11 top.
In the normal pressure relief process of the air vent valve, the top sealing cover 11 is separated from the annular sealing sheet 12, the air is exhausted and communicated through the connecting flange pipe end 6 of the annular chamber 5, and air enters the exhaust chamber 10 through the exhaust hollow part 8 after passing through the annular chamber 5 and then is exhausted through the exhaust part 9.
When the pipe network is pressurized in a short period and a large amplitude, the normal pressure relief channel continuously releases air pressure, the air flow can rise through the water level, the water inlet pipe end 7 rises, the floating ball 3 pushes the top sealing cover 11 to rise to be in sealing butt joint with the annular sealing sheet 12 in the rising process, the pressure maintaining is realized at the moment, and the top sealing cover 11 rises to have certain hysteresis, so that the large amplitude pressure relief requirement before the pressure maintaining is met, and the effect of eliminating the water hammer is provided to a certain extent.
However, traditional top closing cap 11 is carried out the pressure to the floater 3 by the dead weight, consequently can adjust pressure invariably, can seal closed pressurize excessively fast, and the practical application in-process can have different displacement demands, and traditional structure can't satisfy different displacement and adjust, leads to top closing cap 11 to rise excessively fast, does not reach the requirement and presses the buffering demand by force.
In order to cope with this, there is proposed an exhaust valve as shown in fig. 1, in which a floating pressure connection body 13 connected to a top cover 11 is provided in a valve cap 2, and a floating pressure adjustment portion 14 penetrating the valve cap 2 is provided at a top end of the floating pressure connection body 13.
Specifically, the floating pressure adjusting portion 14 can adjust the floating pressure connecting body 13 outside the valve body, so that flexible adaptation of the resisting pressure of the top sealing cover 11 is realized, the valve body does not need to be disassembled, the ascending sealing stroke of the top sealing cover 11 is buffered, air in a pipe network is sufficiently discharged, and the water hammer prevention effect is very obvious.
In one embodiment, the floating pressure connector 13 includes a connecting rod 15 connected to the mating shaft of the top cover 11, a floating spring 16 is sleeved on the outer circumference of the connecting rod 15, the floating pressure adjusting portion 14 includes a knob shaft end 17 with a lifting displacement, the top end of the connecting rod 15 is slidably mated in the knob shaft end 17, and the floating spring 16 is disposed between the bottom end surface of the knob shaft end and the top cover.
That is, the lifting displacement adjustment is realized through the rotation of the knob shaft end 17, so that the compression stroke of the floating spring 16 is controlled, and the different floating pressure adjustment requirements on the top sealing cover 11 are met. The adjustable elastic crimping force is flexible, and flexible adjustment can be performed according to the official website condition.
In one embodiment, the connecting rod body 15 is provided with a pressure regulating vent cover 18 positioned in the exhaust chamber, the pressure regulating vent cover 18 is provided with a plurality of vent holes 19, and the floating spring 16 is limited and arranged between the bottom end surface of the shaft end of the knob and the pressure regulating vent cover.
Specifically, when the pressure of the pipe network increases and the water level rises, the air pressure is quickly exhausted through the exhaust hollow part 8 through the exhaust chamber 10, the air flow quantity has great influence on the water level rise, the floating rising acting force of the floating ball body 3 on the top sealing cover 11 is very large, and the buffer tail end stroke is often too rapid, so that the design of the pressure-regulating vent cover 18 is adopted, the pressure-regulating vent cover can limit certain exhaust flow speed, the water level rising stroke is buffered, the elastic buffer of the top sealing cover 11 is combined, the gentle exhaust operation can be realized, and the effective service life of the exhaust valve is prolonged.
In one embodiment, the ventilation adjusting cover 18 is provided with stacked ventilation adjusting plates, and the ventilation adjusting plates are provided with ventilation adjusting slots corresponding to the ventilation holes one by one.
Through the coincide of adjusting ventilation lid 18 and circulation of air regulating plate, realize the counterpoint of relative rotation displacement and adjust for form the coincide portion of ventilating between air vent and the regulation gas pocket groove, thereby satisfy the regulation demand of different air capacities, this air capacity mainly is the restriction air flow, and it can adopt the rotatory connected mode of external control to realize.
In one embodiment, the coupling shaft of the top cover 11 is provided with a communication passage 19 for communicating the float chamber and the exhaust chamber, the float body is provided with a vent sheet groove for matching with the communication passage, and the vent sheet groove is provided with a mesh vent sheet 20.
The structure is consistent with the function of the previous application of my department and is used for stable exhaust in a pressure maintaining state.
In one embodiment, the vent 9 comprises a plurality of vent slots disposed on the bonnet 2 about the axial end of the knob.
This embodiment mainly realizes top exhaust, and is characterized by low cost.
In one embodiment, an axial exhaust gap 21 is provided between the valve cover 2 and the exhaust valve body in communication with the exhaust chamber. The outer periphery of the valve cover 2 is provided with an exhaust guide outer edge wall 22 that fits the exhaust gap.
The embodiment is a periphery-oriented exhaust structure, exhaust is towards the bottom, so that mist-containing exhaust is discharged towards the ground, and the design is more reasonable and reliable.
Through the description, the air exhaust valve for adjusting the waterproof hammer can meet different pressure relief pressure adjusting requirements by adopting the design that the floating pressure of the top sealing cover can be adjusted, realizes relative buffering, has an obvious waterproof hammer effect, and can meet the requirement of flexibly adjusting the floating pressure without disassembling a valve body. Possess displacement control function, play the secondary speed reduction effect through the displacement restriction, combine together with top closing cap floating pressure, satisfy abundant exhaust demand. The method meets the requirements of various pipe network exhaust and waterproof hammer construction, has wide application range and higher economic value.
The technical solutions of the present invention are fully described above, it should be noted that the specific embodiments of the present invention are not limited by the above description, and all technical solutions formed by equivalent or equivalent changes in structure, method, or function according to the spirit of the present invention by those skilled in the art are within the scope of the present invention.
Claims (8)
1. Waterproof hammer air regulation discharge valve, including discharge valve main part and valve gap, be equipped with in the discharge valve main part and possess the floater cavity of floater body and be located the cyclic annular cavity of floater cavity periphery, the bottom of floater cavity be equipped with into water pipe end, top be equipped with a plurality of with the exhaust fretwork portion that cyclic annular cavity is linked together, the valve gap possess exhaust portion, with the exhaust cavity that the floater cavity is linked together, be equipped with the top closing cap that possesses the lift displacement that is located floater body top in the exhaust cavity, set up be in top closing cap top be used for with top closing cap looks seal complex cyclic annular gasket, its characterized in that:
the floating pressure adjusting device is characterized in that a floating pressure connecting body connected with the top sealing cover is arranged in the valve cover, and a floating pressure adjusting part penetrating through the valve cover is arranged at the top end of the floating pressure connecting body.
2. The waterproof hammer-regulating air vent valve of claim 1, wherein:
the floating pressure connector comprises a connecting rod body connected with a matching shaft of the top sealing cover, a floating spring is sleeved on the periphery of the connecting rod body, the floating pressure adjusting portion comprises a knob shaft end with lifting displacement, the top end of the connecting rod body is in sliding matching in the knob shaft end, and the floating spring is limited and arranged between the bottom end face of the knob shaft end and the top sealing cover.
3. The waterproof hammer-regulating air vent valve of claim 2, wherein:
the pressure regulating ventilation cover is arranged in the exhaust chamber and is provided with a plurality of vent holes, and the floating spring is limited and arranged between the bottom end face of the rotary knob shaft end and the pressure regulating ventilation cover.
4. The waterproof hammer-regulating air vent valve of claim 3, wherein:
the adjusting ventilation cover is provided with an airflow adjusting sheet which is overlapped, and the airflow adjusting sheet is provided with an adjusting air hole groove which is in one-to-one correspondence with the air holes.
5. The waterproof hammer-regulating air vent valve of claim 1, wherein:
the top sealing cover is characterized in that a communicating channel for communicating the floating ball chamber and the exhaust chamber is arranged on the adapting shaft, a ventilating sheet groove matched with the communicating channel is formed in the floating ball body, and a reticular ventilating sheet is arranged in the ventilating sheet groove.
6. The waterproof hammer-regulating air vent valve of claim 1, wherein:
the exhaust part comprises a plurality of exhaust hole grooves which are arranged on the valve cover and surround the shaft end of the knob.
7. The waterproof hammer-regulating air vent valve of claim 1, wherein:
an axial exhaust gap communicated with the exhaust chamber is arranged between the valve cover and the exhaust valve main body.
8. The waterproof hammer-regulating air vent valve of claim 7, wherein:
the periphery of the valve cover is provided with an exhaust guide outer edge wall matched with the exhaust gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110583919.8A CN113339619A (en) | 2021-05-27 | 2021-05-27 | Air exhaust valve for adjusting water hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110583919.8A CN113339619A (en) | 2021-05-27 | 2021-05-27 | Air exhaust valve for adjusting water hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113339619A true CN113339619A (en) | 2021-09-03 |
Family
ID=77471884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110583919.8A Pending CN113339619A (en) | 2021-05-27 | 2021-05-27 | Air exhaust valve for adjusting water hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113339619A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM301301U (en) * | 2006-03-24 | 2006-11-21 | You-Jin Chen | A pipe-shaped check valve |
| CN101324283A (en) * | 2008-07-24 | 2008-12-17 | 哈尔滨电机厂有限责任公司 | Center air compensating valve for large hydraulic turbines |
| WO2014044667A1 (en) * | 2012-09-21 | 2014-03-27 | Ross Europa Gmbh | Safety shut-off device and method for the production thereof |
| CN106764036A (en) * | 2016-12-21 | 2017-05-31 | 苏州艾尔泰流体控制有限公司 | A kind of water hammer-resistant device |
| CN206310064U (en) * | 2016-12-21 | 2017-07-07 | 苏州艾尔泰流体控制有限公司 | A kind of air bleeding valve and water-carriage system |
| CN206830921U (en) * | 2017-04-21 | 2018-01-02 | 上海欧特莱阀门机械有限公司 | A kind of automatic exhaust steam valve |
-
2021
- 2021-05-27 CN CN202110583919.8A patent/CN113339619A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM301301U (en) * | 2006-03-24 | 2006-11-21 | You-Jin Chen | A pipe-shaped check valve |
| CN101324283A (en) * | 2008-07-24 | 2008-12-17 | 哈尔滨电机厂有限责任公司 | Center air compensating valve for large hydraulic turbines |
| WO2014044667A1 (en) * | 2012-09-21 | 2014-03-27 | Ross Europa Gmbh | Safety shut-off device and method for the production thereof |
| CN106764036A (en) * | 2016-12-21 | 2017-05-31 | 苏州艾尔泰流体控制有限公司 | A kind of water hammer-resistant device |
| CN206310064U (en) * | 2016-12-21 | 2017-07-07 | 苏州艾尔泰流体控制有限公司 | A kind of air bleeding valve and water-carriage system |
| CN206830921U (en) * | 2017-04-21 | 2018-01-02 | 上海欧特莱阀门机械有限公司 | A kind of automatic exhaust steam valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111609197B (en) | Combined type exhaust valve | |
| CN104088793B (en) | A kind of air compressor air intake control valve assembly | |
| CN203962418U (en) | A kind of air compressor air intake control valve assembly | |
| CN113339619A (en) | Air exhaust valve for adjusting water hammer | |
| CN113339618A (en) | Air exhaust valve with adjustable exhaust volume | |
| CN110542013B (en) | Floating ball type drain valve | |
| CN209540133U (en) | A kind of double membrane configurations hold pressure pressure release control pilot valve | |
| CN210716131U (en) | Pneumatic type emptying valve | |
| CN213685796U (en) | Exhaust valve for water network system | |
| CN210978703U (en) | Air inlet and exhaust valve floating ball and air inlet and exhaust valve formed by same | |
| CN208982710U (en) | One kind is from pressure release type check-valves | |
| CN208651723U (en) | Vibration proof pilot operated safety valve | |
| CN104763830A (en) | Piston type hydraulic control valve | |
| CN209278608U (en) | A kind of willing pneumatic control valve | |
| CN208123532U (en) | air inlet valve of screw compressor | |
| CN107917079B (en) | A kind of screw air compressor intake valve | |
| CN216555619U (en) | Steam control valve and steam valve body structure thereof | |
| CN108286620A (en) | air inlet valve of screw compressor | |
| CN204592461U (en) | A kind of piston type hydraulic control valve | |
| CN211398682U (en) | Suction pressure control pilot valve | |
| CN219933119U (en) | Air inlet valve capable of adjusting flow | |
| CN113251186B (en) | Internal pressure driven three-position two-way valve | |
| CN221196198U (en) | Automatic exhaust device of liquid storage tank of flow battery energy storage system | |
| CN218971958U (en) | Pilot-operated electromagnetic valve | |
| CN112032391B (en) | Low-temperature electromagnetic valve for automobile boosting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210903 |