CN113374923A - Combined type top energy dissipation air valve that prevents frostbite - Google Patents
Combined type top energy dissipation air valve that prevents frostbite Download PDFInfo
- Publication number
- CN113374923A CN113374923A CN202110861284.3A CN202110861284A CN113374923A CN 113374923 A CN113374923 A CN 113374923A CN 202110861284 A CN202110861284 A CN 202110861284A CN 113374923 A CN113374923 A CN 113374923A
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- Prior art keywords
- micro
- floating body
- valve
- row
- air valve
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
- F16K31/20—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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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
- F16K33/00—Floats for actuation of valves or other apparatus
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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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
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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
- 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
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention discloses a combined top energy dissipation anti-freezing air valve, which comprises a valve body, an upper floating body structure and a lower floating body structure, wherein the upper part of the valve body is provided with a flow limiting plate and a protective net, the top of the valve body is provided with a top cover, a high polymer synthetic resin (PP) floating body is adopted, the specific gravity of the high polymer synthetic resin (PP) is slightly lighter than water and can float in the water, meanwhile, the surface of the polymer synthetic resin material (PP) is compact and smooth, the structural strength is good, the material can not be rusted for ever, the problem that the service life is short because the stainless steel hollow floating ball is easy to deform and is easy to adhere to microorganisms such as green algae, duckweed and the like is solved, the energy dissipation and blow-proof device is additionally arranged at the top of the valve body, the problem that the top cover is blown away or deformed due to too large air pressure or water pressure at the initial stage of exhaust of the exhaust valve is solved, meanwhile, the micro exhaust valve rod is used for replacing the side micro exhaust valve to perform micro exhaust, so that the cost is saved, and the problem that the installation space is not enough due to the fact that the structure size is enlarged due to the fact that the side micro exhaust valve is additionally installed is solved.
Description
Technical Field
The invention relates to a combined top energy dissipation anti-freezing air valve.
Background
The air valve is an essential auxiliary element in a pipeline system, is widely applied to the highest point or an elbow or a place with closed air on a pipeline to exhaust air in the pipeline to dredge the pipeline, achieves normal work and simultaneously eliminates the closed water hammer of the pipeline. If the valve is not installed, air resistance occurs at any time in the pipeline, so that the water capacity of the pipeline cannot meet the design requirement, and secondly, the pipeline is vibrated or broken due to power failure and negative pressure in the pipeline when the pump is stopped during operation. When the pump is stopped, the air valve can quickly suck air into the pipe to prevent the pipe from vibrating or breaking, and the air cushion in the pipe can be used for buffering to prevent water hammer from generating when the pump is exhausted.
The air valves on the market are various at present, but the floating bodies mostly adopt stainless steel hollow floating balls, the air pressure is very high when the exhaust valve close to the position of the water pump initially exhausts, the hollow floating balls are easily impacted to deform, the top cover is also easily blown away or deformed, when the pipelines are frozen in the north in winter, the hollow floating balls are also easily frozen flat or damaged, so that the air valves lose the air intake and exhaust effects, meanwhile, the surface of the stainless steel floating balls is easily bonded with microorganisms such as algae and duckweed, and the sealing effect is influenced. When the air valve on the market at present is solving the trace exhaust demand, a small trace air valve is usually connected to the side face of the valve body, and a floating ball of the trace exhaust valve is mostly of a lever type hollow floating ball structure and can be damaged due to icing.
Disclosure of Invention
The invention aims to provide a composite top energy dissipation anti-freezing air valve to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a combined top energy dissipation anti-freezing air valve comprises a valve body, an upper floating body structure and a lower floating body structure, wherein the upper part of the valve body is provided with a flow limiting plate and a protective net, the top of the valve body is provided with a top cover, the upper floating body structure and the lower floating body structure comprise an upper floating body and a lower floating body which are connected through a middle micro-row valve rod and a buckle, a small spring is arranged between the upper floating body and the lower floating body, the top of the micro-row valve rod is provided with a micro-row sealing ring, the middle of the upper floating body is provided with a micro-row exhaust hole, the lower end of the micro-row exhaust hole is provided with a micro-row opening, and the top of the micro-row valve rod is provided with the micro-row sealing ring which is contacted with the micro-row opening during floating to form sealing; the top of the current-limiting plate is supported by a large spring, the lower current-limiting plate is supported and limited by a current-limiting plate support, and the top cover is fixed on the valve body through a connecting bolt.
Preferably, the valve body is internally provided with a guide rib, so that the upper floating body structure and the lower floating body structure float in a fixed vertical direction when floating.
Preferably, a current-limiting plate support is installed above the gland, the current-limiting plate is supported by a large spring, the other end of the large spring is connected to a guide pillar on the top cover, and a bolt is installed on the guide pillar to adjust the upward position of the current-limiting plate.
Preferably, the upper floating body and the lower floating body are provided with circular slotted holes, and small springs are connected in the circular slotted holes.
Preferably, a fine vent is arranged in the middle of the micro vent.
Preferably, the micro-row sealing ring is made of NBR rubber.
Preferably, a main sealing ring is installed at the position of the middle edge opening of the valve body, the main sealing ring is made of NBR rubber, and the main sealing ring is fixed through a gland.
Preferably, the top cover is provided with a hanging ring.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a high polymer synthetic resin material (PP) floating body, which is slightly lighter than water in specific gravity and can float in water, and meanwhile, the surface of the high polymer synthetic resin material (PP) is compact and smooth, has good structural strength and can not be rusted forever, the problem of short service life caused by the fact that a stainless steel hollow floating ball is easy to deform and easily adheres to microorganisms such as green algae and duckweed is solved, an energy dissipation and blow-proof device is additionally arranged at the top of a valve body, the problem that a top cover is blown away or impacted and deformed when the air pressure or water pressure at the early stage of air exhaust of an exhaust valve is too large is solved, meanwhile, a micro exhaust valve is replaced by a micro exhaust valve rod to perform micro exhaust, the cost is saved, and the problem that the installation space is insufficient due to the fact that the structure size is increased because the micro exhaust valve is additionally arranged is solved.
Drawings
Figure 1 is a schematic view of the structure of the compound anti-freezing air valve,
figure 2 is a schematic view of the structure of the valve body,
figure 3 is a schematic structural view of an upper floating body assembly and a lower floating body assembly,
figure 4 is a schematic view showing the early exhaust state of the air valve when the air valve is largely exhausted,
figure 5 is a schematic view of the state when the exhaust is completely closed,
figure 6 is a schematic view of the valve in a situation where there is a large suction when a vacuum is present in the pipe,
FIG. 7 is a schematic view showing the operating state of the micro-exhaust valve rod of the air valve
In the figure: 1-valve body 2-lower float 3-micro-row valve rod 4-buckle 5-limit screw plug 6-micro-row sealing ring 7-micro-row opening 8-small spring 9-upper float 10-main sealing ring 11-sealing ring gland 12-connecting stud 13-restrictor plate support 14-restrictor plate 15-large spring 16-top cover 17-lifting ring 18-protective screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a combined top energy dissipation anti-freezing air valve comprises a valve body 1 and upper and lower floating body structures, wherein the upper part of the valve body 1 is provided with a flow limiting plate 14 and a protective net 18, the top of the valve body is provided with a top cover 16, the upper and lower floating body structures comprise an upper floating body 9 and a lower floating body 2, the upper and lower floating body structures are connected through a middle micro-row valve rod 3 and a buckle 4, a small spring 8 is arranged between the upper and lower floating bodies, the top of the micro-row valve rod 3 is provided with a micro-row sealing ring 6, the middle of the upper floating body 9 is provided with a micro-row exhaust hole, the lower end of the micro-row valve rod is provided with a micro-row opening 7, and the micro-row sealing ring 6 is contacted with the micro-row opening 7 during floating to form sealing; the upper part of the flow limiting plate 14 is supported by a large spring 15, the lower part of the flow limiting plate is supported and limited by a flow limiting plate support 13, the top cover 16 is fixed on the valve body 1 through a connecting bolt 12, and the micro-row sealing ring 6 is made of NBR rubber.
The valve body 1 is internally provided with a guide rib, so that the upper floating body structure and the lower floating body structure float in a fixed vertical direction when floating;
a restrictor plate bracket 13 is arranged above the gland 11, the restrictor plate 14 is supported by a large spring 15, the other end of the large spring 15 is connected to a guide post on a top cover 16, and a bolt is arranged on the guide post to adjust the upward position of the restrictor plate 14.
The upper floating body 9 and the lower floating body 2 are provided with circular slotted holes and internally connected with small springs 8.
The middle edge opening of the valve body 1 is provided with a main sealing ring 10, the main sealing ring 10 is made of NBR rubber, and the main sealing ring 10 is fixed through a gland.
The top cover 16 is provided with a hanging ring 17.
The working principle of the embodiment is as follows:
as shown in fig. 4, when the pipeline starts to fill water, the air valve exhausts a large amount of air, the pressure in the air valve is high, the upper restrictor plate bears pressure and the compression spring starts to move upwards to offset the impact force of the exhaust, and the top cover is protected from being affected;
it can be understood that when the pipeline is filled with water, water in the air valve is easy to flush out of the exhaust valve under the action of high pressure to cause water accumulation in a valve well or the ground, and at the moment, the upper flow limiting plate can eliminate the kinetic energy of water and gas during initial exhaust, so that the flushing out of the water in the air valve is effectively inhibited;
as shown in fig. 5, when the pipeline is filled with water, the upper and lower floating bodies float upwards under the action of buoyancy, the upper floating body contacts with the main sealing ring to form sealing, the micro-exhaust valve rod floats upwards and contacts with the micro-exhaust sealing ring to form sealing, and the air valve is in a closed state at the moment;
as shown in fig. 6, when a vacuum exists in the pipeline, the upper and lower floating body assemblies fall under the action of gravity and are blocked by the inclined port below the valve body, and the air valve starts to suck a large amount of air to prevent negative pressure from being generated in the pipeline, so that the pipeline is effectively protected, and the generation of a combined water hammer is inhibited;
as shown in fig. 7 and 3, when the air dissolved in the water in the pipeline is separated out, the separated air is concentrated on the upper part of the valve cavity, the lower floating body is still under the action of buoyancy and is propped against the upper floating body through a small spring in the middle of the upper floating body and the lower floating body, so that the upper floating body and the main sealing ring are still in a sealing state, the air separated out in the water enters a micro-exhaust channel through a gap between the upper floating body and the lower floating body, the micro-exhaust channel is a gap between a micro-exhaust valve rod and a screw plug, the micro-exhaust valve rod falls under the action of air pressure and gravity, and the air passes through a pore in the middle of the upper floating body to be exhausted out of the valve, so that the micro-exhaust action is completed.
It can be understood that, install the pipeline of this combined type air valve that prevents frostbite, thereby can be smooth discharge pipeline air and inhale the production that restraines the water hammer phenomenon fast when the pipeline forms the vacuum, the effectual pipeline that has protected, adopt the polypropylene (PP) material of high strength simultaneously, effectively prevent that the temperature from dropping the pipeline and icing and lead to the body to damage, life is longer, top current-limiting plate structure simultaneously, eliminate the kinetic energy of combined type air valve initial water gas of work, the air valve top cap has effectively been protected.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a frostproofing air valve of combined type top energy dissipation, includes valve body (1), upper and lower body structure, and valve body (1) upper portion has current-limiting plate (14) and protection network (18), and the top is equipped with top cap (16), its characterized in that: the upper floating body structure and the lower floating body structure comprise an upper floating body (9) and a lower floating body (2), the upper floating body structure and the lower floating body structure are connected through a middle micro-row valve rod (3) and a buckle (4), a small spring (8) is installed between the upper floating body and the lower floating body, a micro-row sealing ring (6) is arranged at the top of the micro-row valve rod (3), a micro-row exhaust hole is formed in the middle of the upper floating body (9), a micro-row opening (7) is formed in the lower end of the micro-row exhaust hole, a micro-row sealing ring (6) is arranged at the top of the micro-row valve rod (3), and the micro-row opening (7) is contacted during floating to form sealing; a large spring (15) is arranged above the current limiting plate (14) to support and limit, a current limiting plate support (13) is arranged below the current limiting plate to support and limit, and the top cover (16) is fixed on the valve body (1) through a connecting bolt (12).
2. The composite top energy dissipating anti-freeze air valve of claim 1, wherein: the valve body (1) is internally provided with a guide rib, so that the upper floating body structure and the lower floating body structure float in a fixed vertical direction when floating.
3. The composite top energy dissipating anti-freeze air valve of claim 1, wherein: a current limiting plate support (13) is installed above the gland (11), the current limiting plate (14) is supported by a large spring (15), the other end of the large spring (15) is connected to a guide post on a top cover (16), and a bolt is installed on the guide post and can adjust the upward position of the current limiting plate (14).
4. The composite top energy dissipating anti-freeze air valve of claim 1, wherein: the upper floating body (9) and the lower floating body (2) are provided with circular slotted holes and internally connected with small springs (8).
5. The composite top energy dissipating anti-freeze air valve of claim 1, wherein: a fine vent is arranged in the middle of the micro vent (7).
6. The composite top energy dissipating anti-freeze air valve of claim 1, wherein: the micro-row sealing ring (6) is made of NBR rubber.
7. The composite top energy dissipating anti-freeze air valve of claim 1, wherein: the middle edge opening of the valve body (1) is provided with a main sealing ring (10), the main sealing ring (10) is made of NBR rubber, and the main sealing ring (10) is fixed through a gland.
8. The composite top energy dissipating anti-freeze air valve of claim 1, wherein: the top cover (16) is provided with a hanging ring (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110861284.3A CN113374923A (en) | 2021-07-29 | 2021-07-29 | Combined type top energy dissipation air valve that prevents frostbite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110861284.3A CN113374923A (en) | 2021-07-29 | 2021-07-29 | Combined type top energy dissipation air valve that prevents frostbite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113374923A true CN113374923A (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110861284.3A Pending CN113374923A (en) | 2021-07-29 | 2021-07-29 | Combined type top energy dissipation air valve that prevents frostbite |
Country Status (1)
| Country | Link |
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| CN (1) | CN113374923A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819287A (en) * | 2021-11-03 | 2021-12-21 | 安徽铜都流体科技股份有限公司 | Novel composite air valve for preventing water hammer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201836400U (en) * | 2010-01-21 | 2011-05-18 | 刘永 | Anti-theft type intelligent exhaust valve |
| US20130220442A1 (en) * | 2010-11-16 | 2013-08-29 | Allistair Potroneus Balutto | Air release valve |
| JP2013190084A (en) * | 2012-03-15 | 2013-09-26 | Shimizu Gokin Seisakusho:Kk | Air valve |
| CN210770314U (en) * | 2019-10-24 | 2020-06-16 | 杨玉明 | Three-hole anti-hammer air valve |
| CN111396614A (en) * | 2020-04-17 | 2020-07-10 | 上海司若智能科技有限公司 | Novel combined type air valve |
-
2021
- 2021-07-29 CN CN202110861284.3A patent/CN113374923A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201836400U (en) * | 2010-01-21 | 2011-05-18 | 刘永 | Anti-theft type intelligent exhaust valve |
| US20130220442A1 (en) * | 2010-11-16 | 2013-08-29 | Allistair Potroneus Balutto | Air release valve |
| JP2013190084A (en) * | 2012-03-15 | 2013-09-26 | Shimizu Gokin Seisakusho:Kk | Air valve |
| CN210770314U (en) * | 2019-10-24 | 2020-06-16 | 杨玉明 | Three-hole anti-hammer air valve |
| CN111396614A (en) * | 2020-04-17 | 2020-07-10 | 上海司若智能科技有限公司 | Novel combined type air valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819287A (en) * | 2021-11-03 | 2021-12-21 | 安徽铜都流体科技股份有限公司 | Novel composite air valve for preventing water hammer |
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Application publication date: 20210910 |
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