CN113309688B - Air compressor unloading device and electromagnetic valve adopting same - Google Patents
Air compressor unloading device and electromagnetic valve adopting same Download PDFInfo
- Publication number
- CN113309688B CN113309688B CN202110559100.8A CN202110559100A CN113309688B CN 113309688 B CN113309688 B CN 113309688B CN 202110559100 A CN202110559100 A CN 202110559100A CN 113309688 B CN113309688 B CN 113309688B
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- Prior art keywords
- unloading
- base
- channel
- hole
- air inlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0083—Pulsation and noise damping means using blow off silencers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/14—Provisions for readily assembling or disassembling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention discloses an air compressor unloading device and an electromagnetic valve adopting the same, and the technical scheme is characterized by comprising a base, wherein the base is provided with an accommodating cavity, the base is provided with an unloading hole and an air inlet channel, the air inlet channel and the unloading hole form a first unloading channel, the base is internally provided with a communicating cavity, the communicating cavity is respectively communicated with the accommodating cavity, the unloading hole and the air inlet channel, a gasket is arranged in the communicating cavity, and the air inlet channel, the accommodating cavity and the communicating cavity are sequentially communicated to form a second unloading channel; and one side of the base is also provided with an adjusting device capable of adjusting the gas flow of the second unloading channel. The invention provides an air compressor unloading device and an electromagnetic valve adopting the same, which are safe and stable when an air compressor is started in a mechanical structure mode.
Description
Technical Field
The invention relates to the technical field of air compressors, in particular to an air compressor unloading device and an electromagnetic valve adopting the same.
Background
Solenoid valves are often used as accessories for air compressor systems. The existing air compressor system also comprises a compressor, an air tank, a pipeline and a check valve, wherein the check valve is used in the air compressor for preventing the air in the air tank from flowing backwards and returning to the compressor. The check valve is connected with the compressor through an exhaust pipe, and the electromagnetic valve is positioned on the exhaust pipe and used for discharging residual gas in the exhaust pipe before the compressor is started.
In the patent document CN 111946599 a, the compressor is generally stopped when the gas pressure in the gas tank reaches a certain preset value, and the compressor is restarted to supplement new high-pressure gas to the gas tank when the gas pressure in the gas tank is reduced to another preset value due to the consumption of a part of the gas, so that the compressor is repeatedly started and stopped.
However, gas with a high pressure value still remains in the exhaust pipe connected with the electromagnetic valve to form high exhaust back pressure, so that the starting load of the compressor is large, the starting of the compressor is difficult, even the compressor is burnt after being started, the service life of the air compressor is shortened, and the use cost of enterprises is increased.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an air compressor unloading device and an electromagnetic valve adopting the same, wherein the air compressor unloading device is safe and stable when an air compressor is started.
In order to achieve the purpose, the invention provides the following technical scheme: an accommodating cavity matched with an electromagnetic valve is arranged on the base, at least one unloading hole and an air inlet flow channel communicated with an exhaust pipe are arranged on the base, the air inlet flow channel is communicated with the at least one unloading hole to form a first unloading channel, a communicating cavity is further arranged in the base, the communicating cavity is respectively communicated with the accommodating cavity, the unloading hole and the air inlet flow channel, a gasket capable of conducting or blocking the first unloading channel is arranged in the communicating cavity, a pressure part capable of separating the air inlet flow channel from the communicating cavity is arranged on one side of the gasket, and a pressure surface contacted with the air inlet flow channel is arranged on the pressure part;
the air inlet flow channel, the accommodating cavity and the communicating cavity are communicated in sequence to form a second unloading channel;
one side of the base is also provided with an adjusting device capable of adjusting the gas flow of the second unloading channel;
the inlet of the inlet conduit may be located on the bottom wall or side wall of the base.
The invention is further configured to: one side of base still is provided with can with adjusting device screw-thread fit's screw hole, adjusting device is including the hand regulation portion, screw thread portion and the execution portion that connect gradually, screw thread portion and screw hole screw-thread fit, execution portion anterior segment is the toper setting, be provided with the regulation hole that is linked together between appearance chamber and the air intake duct, execution portion can remove in the air intake duct in order to cover the regulation hole, the one end of hand regulation portion exposes outside the base.
The invention is further configured to: each unloading hole is provided with a noise eliminator capable of reducing noise, and the noise eliminator is detachably connected with the unloading holes.
The invention is further configured to: an electromagnetic valve, comprising the air compressor unloading device as claimed in any one of claims 1 to 3, wherein the electromagnetic valve controls the second unloading channel to be communicated with the external atmosphere.
In conclusion, the invention has the following beneficial effects: the opening and closing of the unloading hole are controlled through the air pressure change of the two sides of the gasket, the control effect is more sensitive, the two channels are matched with exhaust to release air in the exhaust pipe and the base, the exhaust effect is good, the compressor is prevented from being started under load, and the service life of the compressor is prolonged. And when the air compressor is powered off accidentally, the electromagnetic valve loses the power supply to enable the second unloading channel to be communicated with the external atmosphere, high-pressure gas in the base and the exhaust pipe can be discharged through the second unloading channel, and adverse effects such as damage to restart of the air compressor caused by residual gas in the base and the exhaust pipe are avoided.
Drawings
FIG. 1 is a schematic view of the gas flow in one state of the invention;
FIG. 2 is a schematic view of the gas flow in another state of the invention;
FIG. 3 is a schematic view of the exhaust flow path when the air compressor is turned off according to the present invention;
FIG. 4 is a schematic view of the overall structure of the present invention;
FIG. 5 is a schematic structural view of the present invention and an air compressor assembly;
FIG. 6 is a schematic view of the inlet conduit of the present invention located in the sidewall of the base.
Reference numerals: 1. a base; 2. a cavity; 3. an unloading hole; 4. an air inlet channel; 5. a communicating cavity; 6. a gasket; 7. a threaded hole; 8. an adjustment device; 9. an electromagnetic valve; 10. a pressure receiving portion; 11. a muffler device; 12. and adjusting the hole.
Detailed Description
As shown in fig. 1 to 6, an unloading device for an air compressor includes a base 1, wherein a cavity 2 capable of being matched with a solenoid valve 9 is disposed on the base 1, at least one unloading hole 3 and an intake runner 4 communicated with an exhaust pipe are disposed on the base 1, the intake runner 4 is communicated with the at least one unloading hole 3 to form a first unloading channel (an air path of the first unloading channel may be shown by an arrow in fig. 1), a communicating cavity 5 is further disposed in the base 1, the communicating cavity 5 is respectively communicated with the cavity 2, the unloading hole 3 and the intake runner 4, a gasket 6 capable of conducting or blocking the first unloading channel is disposed in the communicating cavity 5, a pressure receiving portion 10 capable of separating the intake runner 4 from the communicating cavity 5 is disposed on one side of the gasket 6, and a pressure receiving surface contacting with the intake runner is disposed on the pressure receiving portion 10.
The inlet flow passage 4, the cavity 2 and the communicating cavity 5 are sequentially communicated to form a second unloading channel (the second unloading channel can be shown by an arrow in fig. 2);
one side of the base 1 is also provided with an adjusting device capable of adjusting the gas flow of the second unloading channel, and the adjusting device can control the time that the gas pressure of the second unloading channel is equal to that of the gas inlet channel 4 in a delayed manner;
the inlet of the inlet flow channel 4 may be located on the bottom wall or side wall of the base 1 (see also fig. 6).
When the air pressure in the air inlet flow channel is greater than the air pressure in the second unloading channel, pressure difference exists between two sides of the gasket to conduct the first unloading channel, and at the moment, residual gas in the exhaust pipe is discharged outwards through the unloading hole;
when the air pressure in the air inlet flow channel is equal to the air pressure in the second unloading channel, the pressure on the two sides of the gasket is equal to block the first unloading channel.
Further, the gasket 6 is made of a soft material and can be deformed under the influence of air pressure on both sides of the gasket 6.
Furthermore, each unloading hole 3 is provided with a noise eliminator 11 which can reduce noise. Specifically, the muffler device 11 is detachably connected to the relief hole 3. The muffler device 11 is provided to reduce sound by energy consumption and then to finally discharge the sound to the outside atmosphere, thereby achieving a muffler function in the exhaust unloading process.
Further, when the air compressor is closed, the first unloading channel is blocked by the gasket 6, and the second unloading channel is communicated with the external atmosphere through the electromagnetic valve 9 to discharge residual gas in the second unloading channel (the air path can be shown by an arrow in fig. 3);
when the air compressor is opened, the second unloading channel is isolated from the external atmosphere through the electromagnetic valve 9, and the first unloading channel is conducted.
In the prior art, the opening and closing states of the unloading hole 3 are controlled by the electromagnetic valve 9. In the embodiment, the deformation state of the gasket 6 is determined, when the air compressor and the electromagnetic valve 9 are both powered on and opened, high-pressure gas in the exhaust pipe continuously enters the gas inlet channel 4, the gas flow rate of the gas entering the second unloading channel from the gas inlet channel is limited by the adjusting device, a small part of the gas flows into the second unloading channel from the gas inlet channel 4, and a large part of the gas is reserved in the gas inlet channel 4 to form high-pressure gas, so that the gasket 6 is pressed under the action of air pressure to conduct the first unloading channel, and the high-pressure gas can be discharged out of the base 1 from the unloading hole 3. At the same time, the second unloading channel is blocked from the outside atmosphere by the solenoid valve 9.
When the air compressor and the electromagnetic valve 9 are both closed, the air pressure of the first unloading channel is gradually reduced along with the gradual outflow of high-pressure air in the exhaust pipe from the unloading hole 3 until the air pressure in the air inlet channel is equal to the air pressure in the second unloading channel, the pressures on the two sides of the gasket are equal to restore the deformation of the gasket 6, and the first unloading channel is blocked by the gasket 6. The second unloading channel is communicated with the external atmosphere through the electromagnetic valve 9 to discharge the residual gas in the second unloading channel. The embodiment controls the opening and closing of the unloading hole 3 through the air pressure change of the two sides of the gasket 6, the control effect is more sensitive, the two channels are matched with the exhaust to realize the release of the air in the exhaust pipe and the air in the base 1, the exhaust effect is good, the compressor is prevented from being started under the load, and the service life of the compressor is prolonged. And, when the air compressor cuts off power supply by accident, solenoid valve 9 loses the power and makes second off-load passageway and outside atmosphere switch on, can discharge the high-pressure gas in base 1 and the blast pipe through second off-load passageway, avoids it to remain in base 1 and blast pipe and to restart and cause harmful effects such as harm to the air compressor machine.
Further, one side of the base 1 is further provided with a threaded hole 7 capable of being in threaded fit with the adjusting device 8, the adjusting device 8 comprises a hand adjusting portion, a threaded portion and an executing portion, the threaded portion is in threaded fit with the threaded hole 7, the front section of the executing portion is in a conical shape, an adjusting hole 12 communicated with the containing cavity and the air inlet channel is formed in the containing cavity, the executing portion can move in the air inlet channel, the executing portion can control the unit area (namely, the sectional area of the adjusting hole 12) through covering the adjusting hole 12, the flow of high-pressure air in the second pressure relief channel is changed, delayed starting of the compressor is achieved, damage to the compressor is avoided, and the service life of the compressor is prolonged. In addition, the threaded hole 7 and the threaded part are in a threaded connection state, so that the connection part is sealed, and gas leakage is avoided; one end of the manual adjusting part is exposed out of the base, and the manual adjusting part can be manually rotated outside to control the execution part to move so as to change the flow of the gas in the second pressure relief flow channel, so that the compressor of the invention can be matched with compressors of different specifications and powers.
Furthermore, each connecting part in the base 1 is provided with a sealing ring, so that high-pressure gas in the base 1 is prevented from flowing to the outside through a connecting gap.
Before the compressor is started, high-pressure gas in the exhaust pipe flows into the gas inlet channel 4 in the base 1 under the action of pressure, at the moment, the gas pressure in the gas inlet channel 4 is continuously increased, and finally the gasket 6 is extruded to deform, so that the gas can be discharged out of the base 1 through the unloading hole 3 communicated with the gas leakage channel, and the release of the high-pressure gas in the exhaust pipe is realized.
It is worth mentioning that the unloading hole 3 has a certain flow limit, so that the high-pressure gas is prevented from rushing out of the unloading hole 3 in a large amount and quickly to cause a large amount of noise, and the noise reduction function in the exhaust process is realized by controlling the flow of the high-pressure gas in the unloading hole 3.
An electromagnetic valve comprises the unloading device. The electromagnetic valve 9 controls the second unloading channel to be communicated with the external atmosphere so as to discharge residual gas in the second unloading channel.
When the air compressor and the electromagnetic valve 9 are both closed, residual gas exists in the exhaust pipe at the moment, the air pressure of the first unloading channel is gradually reduced along with the gradual outflow of the unloading holes 3, when the air pressure in the first unloading channel is reduced to be smaller than the air pressure in the communicating cavity 5, the gasket 6 is restored to deform, the first unloading channel is blocked, and the residual gas cannot be discharged from the unloading holes 3. At this time, the electromagnetic valve 9 conducts the outside and the second unloading channel to realize unloading in the exhaust pipe.
When the unloading process is completed, the gas pressure in the discharge pipe is reduced to a low pressure level substantially corresponding to the ambient atmospheric pressure, which facilitates the restart of the compressor when the compressor is restarted next time because the back pressure in the discharge pipe has been reduced. The scheme can effectively achieve the air compressor exhaust unloading function, avoid the burning caused by negative pressure starting, and effectively reduce the exhaust noise generated in the exhaust unloading process while prolonging the service life.
Furthermore, the unloading device can also be used as a one-way valve.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (4)
1. The utility model provides an air compressor machine unloading device which characterized by: comprises a base (1), a containing cavity (2) which can be matched with an electromagnetic valve (9) is arranged on the base (1), the base (1) is provided with at least one unloading hole (3) and an air inlet flow passage (4) communicated with an exhaust pipe, the air inlet flow channel (4) is communicated with at least one unloading hole (3) to form a first unloading channel, a communication cavity (5) is also arranged in the base (1), the communicating cavity (5) is respectively communicated with the containing cavity (2), the unloading hole (3) and the air inlet flow passage (4), a gasket (6) capable of conducting or blocking the first unloading channel is arranged in the communication cavity (5), a pressure receiving part (10) which can separate the air inlet flow passage (4) from the communication cavity (5) is arranged on one side of the gasket (6), the pressure receiving part (10) is provided with a pressure receiving surface which is contacted with the air inlet flow channel (4);
the air inlet flow passage (4), the accommodating cavity (2) and the communicating cavity (5) are communicated in sequence to form a second unloading passage;
one side of the base (1) is also provided with an adjusting device (8) capable of adjusting the gas flow of the second unloading channel;
the inlet of the air inlet flow channel (4) can be positioned on the bottom wall or the side wall of the base (1).
2. An air compressor unloading device according to claim 1, wherein: one side of base (1) still be provided with can with adjusting device (8) screw-thread fit's screw hole (7), adjusting device (8) are including the hand regulation portion, screw portion and the execution portion that connect gradually, screw portion and screw hole (7) screw-thread fit, execution portion anterior segment is the toper setting, be provided with between appearance chamber (2) and the inlet flow way (4) and be linked together regulation hole (12), execution portion can remove in inlet flow way (4) in order to cover regulation hole (12), the one end of hand regulation portion exposes outside base (1).
3. An air compressor unloading device according to claim 1, wherein: each unloading hole (3) is provided with a noise eliminator (11) capable of reducing noise, and the noise eliminator (11) is detachably connected with the unloading holes (3).
4. An electromagnetic valve is characterized in that: the air compressor unloading device comprises the air compressor unloading device according to any one of claims 1-3, and the electromagnetic valve (9) controls the second unloading channel to be communicated with the external atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110559100.8A CN113309688B (en) | 2021-05-21 | 2021-05-21 | Air compressor unloading device and electromagnetic valve adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110559100.8A CN113309688B (en) | 2021-05-21 | 2021-05-21 | Air compressor unloading device and electromagnetic valve adopting same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113309688A CN113309688A (en) | 2021-08-27 |
| CN113309688B true CN113309688B (en) | 2022-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110559100.8A Active CN113309688B (en) | 2021-05-21 | 2021-05-21 | Air compressor unloading device and electromagnetic valve adopting same |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB926214A (en) * | 1960-03-03 | 1963-05-15 | Ingersoll Rand Co | Improvements in infinite step controlling device for compressors |
| CN1643256A (en) * | 2002-03-29 | 2005-07-20 | 美商戴尔贝斯空气动力公司 | Head pressure relief assembly |
| CN2809369Y (en) * | 2005-07-26 | 2006-08-23 | 姚正礼 | Self-driven diaphragm valve |
| CN101206972A (en) * | 2006-12-19 | 2008-06-25 | 詹奇峰 | Automatic pneumatic switch for air compressor |
| CN104564628A (en) * | 2015-01-10 | 2015-04-29 | 浙江鸿友压缩机制造有限公司 | Spring-piece-based starting and stopping air compressor starting and stopping unloading device |
| CN111946599A (en) * | 2020-09-14 | 2020-11-17 | 浙江鸿友压缩机制造有限公司 | Air compressor unloading device with noise elimination function structure |
-
2021
- 2021-05-21 CN CN202110559100.8A patent/CN113309688B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB926214A (en) * | 1960-03-03 | 1963-05-15 | Ingersoll Rand Co | Improvements in infinite step controlling device for compressors |
| CN1643256A (en) * | 2002-03-29 | 2005-07-20 | 美商戴尔贝斯空气动力公司 | Head pressure relief assembly |
| CN2809369Y (en) * | 2005-07-26 | 2006-08-23 | 姚正礼 | Self-driven diaphragm valve |
| CN101206972A (en) * | 2006-12-19 | 2008-06-25 | 詹奇峰 | Automatic pneumatic switch for air compressor |
| CN104564628A (en) * | 2015-01-10 | 2015-04-29 | 浙江鸿友压缩机制造有限公司 | Spring-piece-based starting and stopping air compressor starting and stopping unloading device |
| CN111946599A (en) * | 2020-09-14 | 2020-11-17 | 浙江鸿友压缩机制造有限公司 | Air compressor unloading device with noise elimination function structure |
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| CN113309688A (en) | 2021-08-27 |
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