CN201943956U - Energy-saving inverse-proportional valve - Google Patents
Energy-saving inverse-proportional valve Download PDFInfo
- Publication number
- CN201943956U CN201943956U CN2010206439804U CN201020643980U CN201943956U CN 201943956 U CN201943956 U CN 201943956U CN 2010206439804 U CN2010206439804 U CN 2010206439804U CN 201020643980 U CN201020643980 U CN 201020643980U CN 201943956 U CN201943956 U CN 201943956U
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Abstract
The utility model relates to an energy-saving inverse-proportional valve, which comprises a main valve body, a valve seat vertically mounted at the lower part of the main valve body, a valve core vertically set at the upper part of the valve seat, and a small spring provided between the upper end and the lower end of the valve core. The upper part of the main valve body is provided with a valve cover with hollow structure. A lock nut is set on the outer surface of the valve cover. The valve core has an upper part provided with a main spring and a lower part provided with a spring seat. A diaphragm is provided on the undersurface of the spring seat, and a spring leaf is set between the undersurface of the diaphragm and the upper end of the valve core. A compression washer is set on the outer surface of the spring seat. The upper end of the main spring is provided with a levorotation threaded nut, which is connected with the valve cover through the levorotation threaded screw. An adjustment cap is set on the outer surface of the levorotation threaded screw. The utility model can feedback 100% of pressure signal to servo cylinder and inlet control valve. Moreover, the inlet control valve can achieve stepless adjustment of the gas displacement in the range of 0-100%. The gas supplying amount is consistent with the gas consuming amount, and the energy-saving effect is the best.
Description
Technical field
The utility model relates to a kind of energy-saving inverse proportion valve, particularly a kind of energy-saving inverse proportion valve that is used for screw air compressor.
Background technique
In China, screw air compressor has obtained user's approval with its superiority, and progressively replaces piston type control compressor.Compare with screw air compressor, the efficient of piston type air compressor is low, particularly long-term operation continuously, and its Economy is poorer.Owing to much is easily damaged parts in the formed compression chamber of piston type air compressor, the wearing and tearing of these easily damaged partss and damage leakage bigger when all will cause gas compression finally cause the reduction of compressor efficiency.Owing to do not have the easily damaged parts that influences gear efficiency in the helical-lobe compressor, a pair of rotor that compresses is not because wearing and tearing can appear in the characteristics of self structure.Therefore the long-term Economy of operation continuously will be far superior to piston type air compressor.
The inverse proportion valve that uses offshore company to produce in the control of screw air compressor charge flow rate is controlled at present, though can make the pressure of gas holder keep stable basically, makes the inlet pressure of inverse proportion valve and outlet pressure be inversely proportional within the specific limits.But, using this inverse proportion valve, cost is higher.
The model utility content
The purpose of this utility model is to provide a kind of energy-saving inverse proportion valve that is used for screw air compressor.
The technical solution of the utility model: a kind of energy-saving inverse proportion valve, comprise main valve body, the valve seat of vertical placement is equipped with in the bottom of main valve body, and the top of valve seat is provided with the spool of vertical placement, is provided with little spring between the top and bottom of spool; Valve gap is equipped with on the top of main valve body, valve gap places in the main valve body, valve gap is a hollow-core construction, the outer surface of valve gap is provided with locking nut, the top of valve gap is provided with main spring and the bottom is provided with spring seat, the lower surface of spring seat is provided with diaphragm, is provided with spring sheet between the lower surface of diaphragm and the upper end of spool, and the outer surface of spring seat is provided with retainer ring; The upper end of main spring is provided with left-handed nut, and left-handed nut is connected with valve gap by left handed screw, and the outer surface of left handed screw is provided with the adjusting cap.
In the utility model, pressure introduction port is provided with joint outward, is provided with throttling valve core in the joint, and joint and pressure introduction port edge are provided with seal washer, and pressure output is provided with the plug screw.
In the utility model, enter pressure introduction port from the pressure signal of servo cylinder by solenoid valve, pressure output is connected to air intake control valve.
The beneficial effect that the utlity model has: positive inverse proportion valve described in the utility model feeds back to servo cylinder and air intake control valve with pressure signal 100%; And air intake control valve is carried out the 0-100% step-less adjustment to air displacement, makes air demand consistent with gas consumption, the energy-saving effect optimum.
Description of drawings
Fig. 1 is the stereogram of energy-saving inverse proportion valve described in the utility model;
Fig. 2 is the sectional drawing of energy-conservation shape inverse proportion valve described in the utility model.
[figure number is to as directed]
1 joint, 2 throttling valve core
3 seal washers, 4 plug screws
5 valve seats, 6 spools
7 little springs, 8 main valve bodies
9 spring sheets, 10 diaphragms
11 retainer rings, 12 locking nuts
13 spring seats, 14 main springs
15 valve gaps, 16 left-handed nuts
17 left handed screws 18 are regulated cap
19 pressure introduction port, 20 pressure outputs
Embodiment
Further understand and understanding for making structure characteristic of the present utility model and the effect reached had, cooperate detailed explanation, be described as follows in order to preferred embodiment and accompanying drawing:
Please refer to Fig. 1, figure is the stereogram of energy-saving inverse proportion valve described in the utility model.Be provided with joint 1 outside the pressure introduction port 19, be provided with throttling valve core 2 in the joint 1, joint 1 is provided with seal washer 3 with pressure introduction port 19 edges, and pressure output 20 is provided with plug screw 4.
Fig. 2 is the sectional drawing of energy-conservation shape inverse proportion valve described in the utility model, as shown in the figure.Comprise main valve body 8, the valve seat 5 of vertical placement is equipped with in the bottom of main valve body 8, and the top of valve seat 5 is provided with the spool 6 of vertical placement, is provided with little spring 7 between the top and bottom of spool 6.
Valve gap 15 is equipped with on the top of main valve body 8, valve gap 15 places in the main valve body 8, valve gap 15 is a hollow-core construction, the outer surface of valve gap 8 is provided with locking nut 12, the top of valve gap 15 is provided with main spring 14 and the bottom is provided with spring seat 13, the lower surface of spring seat 13 is provided with diaphragm 10, is provided with spring sheet 9 between the upper end of the lower surface of diaphragm 10 and spool 6, and the outer surface of spring seat 13 is provided with retainer ring 11.
The upper end of main spring 14 is provided with left-handed nut 16, and left-handed nut 16 is connected with valve gap 15 by left handed screw 17, and the outer surface of left handed screw 17 is provided with regulates cap 18.
Inverse proportion valve described in the utility model is a kind of Flow valve of pressure control throughput, regulates cap 18 when pressing spring and is rotated counterclockwise to hour, and through purifying, during dry pressurized gas, spool 6 is in closed condition from pressure introduction port 19 inputs.Should be in no eluting gas in theory, because spool 6 belongs to metallic seal with valve port, allow leakage, when input 0.7MPa pressurized air, output flow should be less than 650ml/min, regulate cap 18 when pressing spring and turn clockwise, when making spool 6 for full-gear, output flow should be greater than 160l/min.
In use, the pressure signal of energy-saving inverse proportion valve described in the utility model is from servo cylinder, and enters pressure introduction port 19 by solenoid valve, and pressure output 20 is connected to air intake control valve.
Just work when surpassing the adjusting pressure of setting, this moment, the exhaust pressure of system was high more, and is just low more by the pilot pressure of inverse proportion valve output.And pilot pressure is low more, and the aperture of the air inlet unloading valve video disc by the cylinder extension and contraction control is just more little, and the air inflow of compressor is also just more little, makes the air demand and air consumption maintenance balance of compressor, realizes stepless tolerance regulatory function.
Positive inverse proportion valve described in the utility model feeds back to servo cylinder and air intake control valve with pressure signal 100%; And air intake control valve is carried out the 0-100% step-less adjustment to air displacement, makes air demand consistent with gas consumption, the energy-saving effect optimum.
In sum, it only is preferred embodiment of the present utility model, be not to be used for limiting the scope that the utility model is implemented, all equalizations of doing according to the described shape of the utility model claim scope, structure, feature and spirit change and modify, and all should be included in the claim scope of the present utility model.
Claims (3)
1. energy-saving inverse proportion valve, it is characterized in that, comprise main valve body (8), the valve seat (5) of vertical placement is equipped with in the bottom of main valve body (8), the top of valve seat (5) is provided with the spool (6) of vertical placement, is provided with little spring (7) between the top and bottom of spool (6); Valve gap (15) is equipped with on the top of main valve body (8), valve gap (15) places in the main valve body (8), valve gap (15) is a hollow-core construction, the outer surface of valve gap (8) is provided with locking nut (12), the top of valve gap (15) is provided with main spring (14) and the bottom is provided with spring seat (13), the lower surface of spring seat (13) is provided with diaphragm (10), is provided with spring sheet (9) between the upper end of the lower surface of diaphragm (10) and spool (6), and the outer surface of spring seat (13) is provided with retainer ring (11); The upper end of main spring (14) is provided with left-handed nut (16), and left-handed nut (16) is connected with valve gap (15) by left handed screw (17), and the outer surface of left handed screw (17) is provided with regulates cap (18).
2. energy-saving inverse proportion valve according to claim 1, it is characterized in that, the outer joint (1) that is provided with of pressure introduction port (19), be provided with throttling valve core (2) in the joint (1), joint (1) is provided with seal washer (3) with pressure introduction port (19) edge, and pressure output (20) is provided with plug screw (4).
3. energy-saving inverse proportion valve according to claim 1 and 2 is characterized in that, enters pressure introduction port (19) from the pressure signal of servo cylinder by solenoid valve, and pressure output (20) is connected to air intake control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206439804U CN201943956U (en) | 2010-12-06 | 2010-12-06 | Energy-saving inverse-proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206439804U CN201943956U (en) | 2010-12-06 | 2010-12-06 | Energy-saving inverse-proportional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201943956U true CN201943956U (en) | 2011-08-24 |
Family
ID=44471301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206439804U Expired - Fee Related CN201943956U (en) | 2010-12-06 | 2010-12-06 | Energy-saving inverse-proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201943956U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767509A (en) * | 2012-06-25 | 2012-11-07 | 江苏环力科技发展有限公司 | Improved electronic pressure controller |
| CN113251199A (en) * | 2021-07-02 | 2021-08-13 | 星宇电子(宁波)有限公司 | Proportion control method of double-disc-spring type precise proportional valve for respirator |
-
2010
- 2010-12-06 CN CN2010206439804U patent/CN201943956U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767509A (en) * | 2012-06-25 | 2012-11-07 | 江苏环力科技发展有限公司 | Improved electronic pressure controller |
| CN113251199A (en) * | 2021-07-02 | 2021-08-13 | 星宇电子(宁波)有限公司 | Proportion control method of double-disc-spring type precise proportional valve for respirator |
| CN113251199B (en) * | 2021-07-02 | 2021-09-24 | 星宇电子(宁波)有限公司 | Proportion control method of double-disc-spring type precise proportional valve for respirator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20131206 |