CN107575624B - Air inlet regulating valve structure - Google Patents
Air inlet regulating valve structure Download PDFInfo
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- CN107575624B CN107575624B CN201710630728.6A CN201710630728A CN107575624B CN 107575624 B CN107575624 B CN 107575624B CN 201710630728 A CN201710630728 A CN 201710630728A CN 107575624 B CN107575624 B CN 107575624B
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- air inlet
- valve
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- transmission rod
- regulating valve
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 230000000903 blocking effect Effects 0.000 claims abstract 2
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention relates to the field of air inlet valve control devices, in particular to an air inlet regulating valve structure which is not easy to deform and prolongs the service life, and the air inlet regulating valve structure comprises a valve body, wherein a transmission rod is arranged in the valve body, a valve plate capable of blocking an air inlet and an air inlet chamber of a primary compressor is arranged on the transmission rod.
Description
Technical Field
The invention relates to the field of air inlet valve control devices, in particular to an air inlet regulating valve structure.
Background
The air inlet valve is used as an important component of the dry screw compressor and controls the loading and unloading of the whole compressor; the air consumption of a user is monitored, and the opening and closing of the air inlet valve are controlled, so that the aim of controlling the air exhaust of the air compressor is fulfilled.
The air inlet valve for the dry screw compressor used at present is a technology of Japanese shen steel introduced, adopts a diaphragm transmission structure, adopts a transmission unit as a diaphragm, and achieves the aim of controlling the opening and closing of the air inlet valve by controlling the pressure at two ends of the diaphragm. The air inlet valve mainly comprises a valve body, a piston, a transmission rod, a diaphragm and the like, and the basic working principle is as follows: the movement direction of the diaphragm is controlled by controlling the pressure difference at two sides of the diaphragm, and the diaphragm drives the transmission rod to control the movement of the valve plate in the valve body, so that the opening and closing of the whole air inlet valve are controlled. Because the motion of the transmission rod is controlled through the deformation of the diaphragm, the diaphragm is subjected to one deformation every time the air inlet valve is opened and closed, so that the diaphragm is easy to fatigue and damage and needs to be replaced periodically.
Disclosure of Invention
Aiming at the problems of easy deformation and damage and short service life, the invention provides an air inlet regulating valve structure which is not easy to deform and prolongs the service life.
The technical scheme is as follows: the utility model provides an air inlet regulating valve structure, its includes the valve body, be provided with the transfer line in the valve body, install the valve plate that can block the air inlet room of air inlet and one-level compressor on the transfer line, its characterized in that, cylinder body and relief valve are installed to valve body one side, transfer line one end runs through the cylinder body and stretches into the relief valve, be located be provided with the piston on the transfer line in the cylinder body, the piston is separated the cylinder body inner chamber forms piston inlet room side cavity and piston relief chamber side cavity, be provided with the spring in the piston relief chamber side cavity.
The device is further characterized in that the air inlet is connected with one inlet of a shuttle valve, the other inlet of the shuttle valve is connected with the air inlet of the secondary compressor, the outlet of the shuttle valve is connected with one end of a two-position three-way electromagnetic valve, and the other two ends of the two-position three-way electromagnetic valve are respectively connected with the side cavity of the piston air inlet chamber and the side cavity of the piston air outlet chamber;
The piston is an aluminum alloy piston;
the clearance between the piston and the inner cavity wall of the valve body is 0.5mm plus or minus 0.3mm;
The valve body is internally provided with a metal shaft sleeve, and the transmission rod penetrates through the metal shaft sleeve and is sealed between the metal shaft sleeve and the transmission rod.
The invention adopts the piston structure as the transmission unit to realize the opening and closing of the valve plate, is not easy to generate deformation phenomenon, and prolongs the service life.
Drawings
FIG. 1 is a schematic diagram of the internal structure of a regulating valve according to the present invention;
fig. 2 is a schematic view of the external structure of the regulating valve of the present invention.
Detailed Description
See fig. 1, fig. 2 shows, an intake regulating valve structure, it includes valve body 1, be provided with transfer line 3 in the valve body 1, install the valve plate 2 that can block the air inlet A and the air inlet chamber B of one-level compressor 10 on the transfer line 3, cylinder body 12 and relief valve 7 are installed to valve body 1 one side, transfer line 3 one end runs through cylinder body 12 and stretches into relief valve 7, be provided with piston 5 on the transfer line 4 that is located cylinder body 12, piston 5 separates cylinder body 12 inner chamber and forms piston inlet chamber side cavity C and piston relief chamber side cavity D, be provided with spring 6 in the piston relief chamber side cavity D. The clearance between the piston 5 and the inner cavity of the valve body 1 is controlled to be about 0.5mm, so that the contact between the piston 5 and the valve body 1 is avoided, the piston 5 is an aluminum alloy piston and is not easy to deform under higher pressure difference, and the service life of transmission is greatly prolonged. The valve body 1 is internally provided with the metal shaft sleeve 4, the transmission rod 3 penetrates through the metal shaft sleeve 4 and is sealed between the metal shaft sleeve 4 and the metal shaft sleeve, so that the valve is not easy to wear and deform, the phenomenon that the air inlet valve is blocked is avoided, and the air inlet valve can stably operate for a long time.
The air inlet A is connected with one inlet of the shuttle valve 9, the other inlet of the shuttle valve 9 is connected with the air inlet of the secondary compressor 11, the outlet of the shuttle valve 9 is connected with one end of the two-position three-way electromagnetic valve 8, and the other two ends of the two-position three-way electromagnetic valve 8 are respectively connected with the piston air inlet chamber side cavity C and the piston air outlet chamber side cavity D; the air inlet valve optimizes the control principle, changes the original two-position four-way electromagnetic valve into a two-position three-way electromagnetic valve, effectively reduces external connecting pipelines and ensures that the pipelines are simpler.
The basic working principle of the air inlet valve is as follows:
Closed state: when the air inlet valve is in a closed state, if the two-position three-way electromagnetic valve 8 is in a power-off state, the cavity C at the side of the piston air inlet chamber is communicated with the air inlet chamber B and is in a vacuum state, the cavity D at the side of the piston air outlet chamber is communicated with the atmosphere, the pressure difference born by the two ends of the piston 5 enables the piston 5 to bear the force towards the air inlet A side, and the spring force of the spring 6 overcomes the pressure difference born by the valve plate 2 together, so that the valve plate is always in the closed state; if the two-position three-way electromagnetic valve 8 is powered on, the cavity C at the side of the piston air inlet chamber is connected with the air inlet A, the pressure is basically the same as the atmospheric pressure, no pressure difference exists at the two sides of the piston 5, the spring force is only insufficient to overcome the pressure difference born by the two sides of the air inlet valve plate 2, and the valve plate 2 is opened;
Open state: when the air inlet valve is in an open state, if the two-position three-way electromagnetic valve 8 is in a power-on state, the cavity C at the side of the piston air inlet chamber is communicated with the air inlet of the secondary compressor 11, and is in a positive pressure state, the cavity D at the side of the piston air outlet chamber is communicated with the atmosphere, and the pressure difference at the two ends of the piston 5 ensures that the piston 5 is subjected to force towards the air outlet E side and the force is larger than the spring force of the spring 6, so that the valve plate 2 is always in an open state; if the two-position three-way electromagnetic valve 8 is powered off, the side cavity C of the piston air inlet chamber is communicated with the air inlet chamber B, the pressure is similar to the atmospheric pressure, the pressure is basically the same as the pressure of the side cavity D of the piston air outlet chamber, no pressure difference exists on two sides of the piston 5, the piston 5 is only subjected to the spring force of the spring 6, and the valve plate starts to be closed.
The air compressor unit controls the power on and off of the electromagnetic valve by detecting the air supply pressure of the unit, thereby controlling the opening and closing of the air inlet valve. The whole air inlet valve is more reliable than the air inlet valve used in the current stage.
Claims (4)
1. The air inlet regulating valve structure comprises a valve body, wherein a transmission rod is arranged in the valve body, a valve plate capable of blocking an air inlet and an air inlet chamber of a primary compressor is arranged on the transmission rod, and the air inlet regulating valve structure is characterized in that a cylinder body and an air outlet valve are arranged on one side of the valve body, one end of the transmission rod penetrates through the cylinder body and stretches into the air outlet valve, a piston is arranged on the transmission rod in the cylinder body, a piston air inlet chamber side cavity and a piston air outlet chamber side cavity are formed by separating an inner cavity of the cylinder body, and a spring is arranged in the piston air outlet chamber side cavity; the air inlet is connected with one inlet of the shuttle valve, the other inlet of the shuttle valve is connected with the air inlet of the secondary compressor, the outlet of the shuttle valve is connected with one end of the two-position three-way electromagnetic valve, and the other two ends of the two-position three-way electromagnetic valve are respectively connected with the piston air inlet chamber side cavity and the piston emptying chamber side cavity.
2. An intake air regulating valve structure as claimed in claim 1, wherein the piston is an aluminum alloy piston.
3. An intake air regulating valve structure as claimed in claim 1, wherein the clearance between the piston and the valve body inner cavity wall is 0.5mm ± 0.3mm.
4. An air inlet regulating valve structure according to claim 1, wherein a metal shaft sleeve is arranged in the valve body, and the transmission rod penetrates through the metal shaft sleeve and is sealed between the metal shaft sleeve and the transmission rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710630728.6A CN107575624B (en) | 2017-07-28 | 2017-07-28 | Air inlet regulating valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710630728.6A CN107575624B (en) | 2017-07-28 | 2017-07-28 | Air inlet regulating valve structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107575624A CN107575624A (en) | 2018-01-12 |
| CN107575624B true CN107575624B (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710630728.6A Active CN107575624B (en) | 2017-07-28 | 2017-07-28 | Air inlet regulating valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107575624B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2186332Y (en) * | 1994-03-17 | 1994-12-28 | 陈海泳 | Energy-saving micro-valve |
| CN2426045Y (en) * | 2000-05-17 | 2001-04-04 | 上海正丰阀门制造有限公司 | Piston type electric control valve |
| CN2429702Y (en) * | 2000-06-28 | 2001-05-09 | 株洲南方阀门制造有限公司 | Quick action disphragm style mud valve |
| CN2469280Y (en) * | 2001-03-12 | 2002-01-02 | 武汉大禹阀门制造有限公司 | Delay opening/closing check valve |
| CN2618016Y (en) * | 2003-05-07 | 2004-05-26 | 浙江大众阀门厂 | Multifunctional fluid controlled valves |
| CN2795487Y (en) * | 2005-05-13 | 2006-07-12 | 查谦 | Load discharging valve for gas compressor |
| CN1821575A (en) * | 2005-05-13 | 2006-08-23 | 查谦 | Gas compressor load discharging valve |
| CN201335155Y (en) * | 2009-01-15 | 2009-10-28 | 蒋可贞 | Split type combined two-position two-way pneumatic control valve |
| CN202074045U (en) * | 2011-01-04 | 2011-12-14 | 马鞍山钢铁股份有限公司 | Diaphragm-type quick-opening mud-discharging valve |
| CN203363202U (en) * | 2013-07-10 | 2013-12-25 | 宁波埃美柯铜阀门有限公司 | Piston type stop valve |
| CN203784310U (en) * | 2014-01-07 | 2014-08-20 | 天津市易泰柯自动控制设备有限公司 | Pump protecting valve |
| CN104481846A (en) * | 2014-12-12 | 2015-04-01 | 贵州中电振华精密机械有限公司 | Double-function balance air inlet valve |
| CN207049006U (en) * | 2017-07-28 | 2018-02-27 | 无锡锡压压缩机有限公司 | Air inlet adjustment valve arrangement |
-
2017
- 2017-07-28 CN CN201710630728.6A patent/CN107575624B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2186332Y (en) * | 1994-03-17 | 1994-12-28 | 陈海泳 | Energy-saving micro-valve |
| CN2426045Y (en) * | 2000-05-17 | 2001-04-04 | 上海正丰阀门制造有限公司 | Piston type electric control valve |
| CN2429702Y (en) * | 2000-06-28 | 2001-05-09 | 株洲南方阀门制造有限公司 | Quick action disphragm style mud valve |
| CN2469280Y (en) * | 2001-03-12 | 2002-01-02 | 武汉大禹阀门制造有限公司 | Delay opening/closing check valve |
| CN2618016Y (en) * | 2003-05-07 | 2004-05-26 | 浙江大众阀门厂 | Multifunctional fluid controlled valves |
| CN2795487Y (en) * | 2005-05-13 | 2006-07-12 | 查谦 | Load discharging valve for gas compressor |
| CN1821575A (en) * | 2005-05-13 | 2006-08-23 | 查谦 | Gas compressor load discharging valve |
| CN201335155Y (en) * | 2009-01-15 | 2009-10-28 | 蒋可贞 | Split type combined two-position two-way pneumatic control valve |
| CN202074045U (en) * | 2011-01-04 | 2011-12-14 | 马鞍山钢铁股份有限公司 | Diaphragm-type quick-opening mud-discharging valve |
| CN203363202U (en) * | 2013-07-10 | 2013-12-25 | 宁波埃美柯铜阀门有限公司 | Piston type stop valve |
| CN203784310U (en) * | 2014-01-07 | 2014-08-20 | 天津市易泰柯自动控制设备有限公司 | Pump protecting valve |
| CN104481846A (en) * | 2014-12-12 | 2015-04-01 | 贵州中电振华精密机械有限公司 | Double-function balance air inlet valve |
| CN207049006U (en) * | 2017-07-28 | 2018-02-27 | 无锡锡压压缩机有限公司 | Air inlet adjustment valve arrangement |
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| Publication number | Publication date |
|---|---|
| CN107575624A (en) | 2018-01-12 |
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