CN202100476U - Air inlet valve of screw type air compressor - Google Patents
Air inlet valve of screw type air compressor Download PDFInfo
- Publication number
- CN202100476U CN202100476U CN201120149667XU CN201120149667U CN202100476U CN 202100476 U CN202100476 U CN 202100476U CN 201120149667X U CN201120149667X U CN 201120149667XU CN 201120149667 U CN201120149667 U CN 201120149667U CN 202100476 U CN202100476 U CN 202100476U
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- CN
- China
- Prior art keywords
- valve body
- valve
- spring
- spool
- screw
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses an air inlet valve of a screw type air compressor, which comprises a valve body and is characterized in that the valve body is formed by a cavity. One end of the valve body is designed into a flange structure, and the outer edge of an opening arranged at the other end of the valve body is designed into a flange face with a screw hole. A valve core is embedded inside the cavity of the valve body, one end of the valve core is designed into an umbrella-shaped conical surface body, and the other end of the valve core is designed into a cylinder structure. A spring is arranged below the valve core, one end of the spring is sleeved on the cylinder structure of the valve core and abuts against the conical surface body of the valve core, and the other end of the spring abuts against the position of a seam allowance of an inner cavity of the valve body. An O-shaped ring for sealing is arranged between the flange face of the opening of the valve body and a flange. The conical surface body of the valve core is clung to the flange through the tension of the spring. The air inlet valve of the screw type air compressor is simple in structure and formed only by the valve body, the valve core and the spring and has the advantages of being small in flow resistance, simple in structure, low in cost, few in quick-wear parts and the like.
Description
Technical field
The utility model relates to screw air compressor gas handling system field, specifically, is a kind of screw air compressor suction valve.
Background technique
Screw air compressor (abbreviation screw air compressor) is to be fit to the optimum speed drive compression assembly of purposes through high efficient driving system.Screw air compressor is high because of having stability, and efficient is high, vibrates for a short time, and advantage such as noise is low is widely used.
Air inlet capacity regulating valve (abbreviation suction valve) is that the tolerance of screw air compressor is regulated core component, and is particularly crucial in screw air compressor supporting.Because screw air compressor is carried out unattended operation, so the operational safety of suction valve becomes the first-selected index of screw air compressor manufacturing firm.The function of suction valve is the air inflow of adjusting compressor under the control system effect, makes itself and user's gas consumption keep the coupling of an economy.
At present, step-less adjustment butterfly valve or high low pressure modulating valve that the high-power frequency conversion formula screw air compressor suction valve on the market adopts conventional air compressor to use, the control system of step-less adjustment butterfly valve and high low pressure modulating valve is loaded down with trivial details, and easily damaged parts is more.
The model utility content
The utility model purpose is to provide a kind of screw air compressor suction valve, has the function of shutting down non-return, has improved the control system of present high-power frequency conversion formula screw air compressor; Make it simple in structure; Reduce easily damaged parts, when having reduced the rigger, reduced cost of parts and administration cost.
The utility model is realized through following technological scheme:
A kind of screw air compressor suction valve comprises valve body, it is characterized in that; Said valve body is a cavity, and this valve body one end is designed to flange arrangement, and the outer edge of valve body the other end opening is designed to the flanged surface with screw; The cavity of said valve body is embedded in a spool, and this spool one end is designed to umbrella conical surface body, and the end face of this umbrella conical surface body embeds the fluorine rubber material; Play sealing and noise reduction effect; This spool the other end is designed to column structure, is provided with a spring below the said spool, and this spring one end is enclosed within the column structure outside of spool and props up the conical surface body of spool; The other end of this spring props up the stop portion of said body cavity body, is equipped with the O type circle that seals between the flanged surface of said valve body openings and the said upper flange.
The conical surface body of said spool is close to the residence and is stated upper flange under the tension force of spring.
Have screw on the said upper flange.
Screw on the said upper flange is corresponding with the screw on the said valve flange face.
Screw on the said upper flange is corresponding with the screw on the flanged surface of valve body openings.
The flanged surface of said upper flange and valve body openings is connected through bolt.
The design principle of the utility model is: the utility model suction valve has the shutdown check function.In the time of compressor start, the pressure difference through barometric pressure and machine intimate overcomes spring force opens spool, accomplishes suction condition; In the time of compressor shutdown, through spring force spool is closed, play preventing that the inner oil gas of unit from sputtering the effect of suction port.
The intake resistance of the utility model suction valve has only 0.02Bar, simple installation, the only bolt of the fixing upper and lower flanged surface of needs; Need not to regulate again air inlet disk valve when dispatching from the factory test, practiced thrift assembling and test time greatly, improved manufacturing efficiency.The control aspect need not any control just can be accomplished the circulation of compressor and use airway dysfunction.Fuel Cut Solenoid Valve, modulating valve and exhaust check valve have been saved.Significantly reduce control unit, thereby reached the effect that easily damaged parts reduces greatly.Reduced service maintenance part.
Beneficial effect: the suction valve of the utility model just can be accomplished the startup-shutdown process without any need for reconciling device, has the shutdown check function, thereby has cancelled original Fuel Cut Solenoid Valve of compressor and exhaust check valve.The utility model is simple in structure, only is made up of valve body, spool and spring, has advantages such as circulating resistance is little, simple in structure, cost is low, easily damaged parts is less.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the cross-sectional view of the utility model.
Fig. 2 is the structural representation after the suction valve of the utility model installs.
Among the figure: 1. valve body, 2.O shape circle, 3. spring, 4. spool, 5. bolt, 6. upper flange.
Embodiment
Embodiment to the utility model elaborates below in conjunction with accompanying drawing: present embodiment is being to implement under the prerequisite with the utility model technological scheme; Provided detailed mode of execution and concrete operating process, but the protection domain of the utility model is not limited to following embodiment.
Embodiment:
As shown in Figure 1, comprise valve body 1 among the figure, valve body 1 one ends are designed to flange arrangement; Valve body 1 is a cavity, and this cavity is embedded in a spool 4, and spool 4 is that an end is designed to umbrella conical surface body; And the end face of umbrella conical surface body embeds the fluorine rubber material, and spool 4 the other ends are designed to the structure of cylinder, and the cylindrical body cylindrical is provided with a spring 3; These spring 3 one ends are enclosed within the column structure outside of spool 4 and prop up the conical surface body of spool 4; The other end of spring 3 props up the cavity stop portion in the valve body 1, and the outer edge of valve body 1 opening is designed to the screw flanged surface and through the sealing between O type circle 2 completion valve bodies 1 and the upper flange 6, and is connected with upper flange 6 through bolt 5.
The utility model suction valve is when mounted: at first the end with spring 3 is enclosed within on the cylinder of spool 4; Then spool 4 and spring 3 are embedded in the cavity of valve body 1 together; The other end of spring 3 props up the cavity stop portion in the valve body 1, then O shape circle 2 is installed in the O shape ring recess of valve body 1 end face; Upper flange 6 is installed on the valve body 1, and with the screw on the flanged surface of screw on the upper flange 6 and valve body 1 opening alignment, last, bolt 5 is passed screw and the screw on valve body 1 flanged surface on the upper flange 6 simultaneously, and tighten fixing.
More than show and described basic principle of the utility model and the advantage of major character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. a screw air compressor suction valve comprises valve body, it is characterized in that; Said valve body is a cavity, and this valve body one end is designed to flange arrangement, and the outer edge of valve body the other end opening is designed to the flanged surface with screw; The cavity of said valve body is embedded in a spool, and this spool one end is designed to umbrella conical surface body, and this spool the other end is designed to column structure; Be provided with a spring below the said spool; This spring one end is enclosed within the column structure outside of spool and props up the conical surface body of spool, and the other end of this spring props up the stop portion of said body cavity body, is equipped with the O type circle that seals between the flanged surface of said valve body openings and the said upper flange.The conical surface body of said spool is close to the residence and is stated upper flange under the tension force of spring.
2. a kind of screw air compressor suction valve according to claim 1 is characterized in that, has screw on the said upper flange.
3. a kind of screw air compressor suction valve according to claim 1 and 2 is characterized in that the screw on the said upper flange is corresponding with the screw on the flanged surface of valve body openings, and the flanged surface of said upper flange and valve body openings is connected through bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120149667XU CN202100476U (en) | 2011-05-12 | 2011-05-12 | Air inlet valve of screw type air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120149667XU CN202100476U (en) | 2011-05-12 | 2011-05-12 | Air inlet valve of screw type air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100476U true CN202100476U (en) | 2012-01-04 |
Family
ID=45386491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120149667XU Expired - Lifetime CN202100476U (en) | 2011-05-12 | 2011-05-12 | Air inlet valve of screw type air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100476U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162457A (en) * | 2011-05-12 | 2011-08-24 | 上海英格索兰压缩机有限公司 | Air inlet valve of screw air compressor with halt check function |
| CN107575610A (en) * | 2017-10-13 | 2018-01-12 | 南通市红星空压机配件制造有限公司 | Biogas air inlet valve of screw compressor |
-
2011
- 2011-05-12 CN CN201120149667XU patent/CN202100476U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162457A (en) * | 2011-05-12 | 2011-08-24 | 上海英格索兰压缩机有限公司 | Air inlet valve of screw air compressor with halt check function |
| CN107575610A (en) * | 2017-10-13 | 2018-01-12 | 南通市红星空压机配件制造有限公司 | Biogas air inlet valve of screw compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |
|
| CX01 | Expiry of patent term |