CN201335019Y - Automatic-control constant pressure device of stationary type screw air compressor - Google Patents
Automatic-control constant pressure device of stationary type screw air compressor Download PDFInfo
- Publication number
- CN201335019Y CN201335019Y CNU2009201128806U CN200920112880U CN201335019Y CN 201335019 Y CN201335019 Y CN 201335019Y CN U2009201128806 U CNU2009201128806 U CN U2009201128806U CN 200920112880 U CN200920112880 U CN 200920112880U CN 201335019 Y CN201335019 Y CN 201335019Y
- Authority
- CN
- China
- Prior art keywords
- air compressor
- frequency variator
- gas receiver
- automatic
- pressure device
- 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 - Fee Related
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Abstract
The utility model relates to a constant-pressure device, in particular to an automatic-control constant pressure device of a stationary type screw air compressor. The automatic-control constant pressure device comprises an air compressor, a gas receiver, a windpipe and an air transmission pipe; the air compressor is communicated with one side of the gas receiver through the windpipe; the air transmission pipe is connectedly arranged on the other side of the gas receiver; the air transmission pipe is communicated with a workshop pipe network; a transducer is arranged on one side of the air compressor and connected with the air compressor through a lead wire; and a pressure transmitter is arranged on the air transmission pipe and connected with the transducer through the lead wire. The automatic-control constant-pressure device leads the stationary type screw compressor to be under a loading state without unloading, has the advantages of simple structure and energy conservation, protects major components, and keeps an air network to be stable.
Description
Technical field
The utility model is a kind of constant-voltage equipment, and particularly a kind of fixed screw air compressor is controlled constant-voltage equipment automatically.
Background technique
In the prior art, the working principle of helical-lobe compressor is according to air consumption, makes compressor load automatically and unloading by regulating system, and gas net pressure is remained in the setting range.This regulating system is controlled by controller, though it can protect the work of compressor automatically, because loading and unloading is frequent, increase the wearing and tearing of compressor critical piece easily, and the pressure surge of gas net is bigger, and energy waste is bigger.
Chinese patent CN2722307 discloses a kind of constant-voltage equipment, and the constant vacuum device is made up of automatic vacuum control gear and continuous sucking device.During the work of the utility model device, default vacuum values in automatic vacuum control gear program, vacuum generator aspirates the generation vacuum to pressurized tank, the size of automatic vacuum control gear air valve opening enters pressure in the air quantity in the pressurized tank and the jar that keep-ups pressure and constant degree of vacuum with automatic adjusting; Automatically inhale control gear according to the data that liquid level electricity class survey arrives, then suction valve and/or drain valve are controlled, reach under various degree of vacuum, continuously liquid is carried out the constant voltage suction.The utility model device can also directly need the device of constant voltage vacuum to be connected use with other.Loading and unloading that this model utility automatic vacuum control gear is frequent cause the damage of inner critical piece easily, cause very big fluctuation for simultaneously the gas net, and energy waste is bigger, and be simple comparatively speaking complicated.
Summary of the invention
The utility model mainly is to solve the deficiencies in the prior art, provides a kind of and makes fixed helical-lobe compressor be in loaded state for a long time, need not unload, and is simple in structure, and the protection critical piece keeps the stable of gas net, energy saving.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of fixed screw air compressor is controlled constant-voltage equipment automatically, comprise air compressor, gas receiver, tracheae and snorkel composition, described air compressor is connected by tracheae with a side of gas receiver, the opposite side of gas receiver is connected with snorkel, snorkel is connected with the workshop pipe network, and a side of described air compressor is provided with frequency variator, and frequency variator is connected with air compressor by lead, described snorkel is provided with pressure transmitter, and pressure transmitter is connected by lead with frequency variator.When the force value in the snorkel is not enough, by pressure transmitter pressure signal is converted to current signal, feed back in the frequency variator, frequency variator passes to air compressor to signal again, air compressor changes force value by tracheae again, by detection, carry out computing by the residual quantity of pressure feedback amount signal and aim parameter signal, the output frequency of control frequency variator to ductwork pressure, adjust the rotating speed of screw rod, make compressor be in loaded state for a long time, need not unload, and remain on the aim parameter of setting.
As preferably, described frequency variator is located between gas receiver and the air compressor, and described frequency variator is connected with air compressor by power line, and described pressure transmitter is connected with frequency variator by signaling line.Power line is used to control the running of air compressor, and signaling line is used to connect frequency variator, transmission signal.
As preferably, described air compressor comprises that axial-flow blower and motor form, and described axial-flow blower is connected with motor, and the power line of described frequency variator is connected with motor in the air compressor, and described pressure transmitter is plugged in the snorkel.Axial-flow blower in the air compressor and motor are formed air compressing device, realize automatic constant-pressure, make it to meet the demand of production.
As preferably, described air compressor, frequency variator, tracheae, gas receiver, pressure transmitter form the closed loop control form.Closed loop control effectively pipe network is monitored, the pattern of control frequency variator.
Therefore, fixed screw air compressor of the present utility model is controlled constant-voltage equipment automatically, provides a kind of and makes fixed helical-lobe compressor be in loaded state for a long time, need not unload, and is simple in structure, and the protection critical piece keeps the stable of gas net, energy saving.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as shown in Figure 1, a kind of fixed screw air compressor is controlled constant-voltage equipment automatically, comprise air compressor 1, gas receiver 8, tracheae 7 and snorkel 10 are formed, air compressor 1 is connected by tracheae 7 with a side of gas receiver 8, the opposite side of gas receiver 8 is connected with snorkel 10, snorkel 10 is connected with the workshop pipe network, air compressor 1 comprises axial-flow blower 2 and motor 3 compositions, axial-flow blower 2 is connected with motor 3, the power line 4 of frequency variator 5 is connected with motor 3 in the air compressor 1, pressure transmitter 9 is plugged in the snorkel 10, frequency variator 5 is located between gas receiver 8 and the air compressor 1, frequency variator 5 is connected with air compressor 1 by power line 4, and pressure transmitter 9 is connected with frequency variator 5 by signaling line 6, air compressor 1, frequency variator 5, tracheae 7, gas receiver 8, pressure transmitter 9 forms the closed loop control form.
Working principle: by detection, carry out computing, the output frequency of control frequency variator by the residual quantity of pressure feedback amount signal and aim parameter signal to ductwork pressure, adjust the rotating speed of screw rod, make compressor be in loaded state for a long time, need not unload, and remain on the aim parameter of setting.
Claims (4)
1, a kind of fixed screw air compressor is controlled constant-voltage equipment automatically, comprise air compressor (1), gas receiver (8), tracheae (7) and snorkel (10) are formed, described air compressor (1) is connected by tracheae (7) with a side of gas receiver (8), the opposite side of gas receiver (8) is connected with snorkel (10), snorkel (10) is connected with the workshop pipe network, it is characterized in that: a side of described air compressor (1) is provided with frequency variator (5), frequency variator (5) is connected with air compressor (1) by lead, described snorkel (10) is provided with pressure transmitter (9), and pressure transmitter (9) is connected by lead with frequency variator (5).
2, fixed screw air compressor according to claim 1 is controlled constant-voltage equipment automatically, it is characterized in that: described frequency variator (5) is located between gas receiver (8) and the air compressor (1), described frequency variator (5) is connected with air compressor (1) by power line (4), and described pressure transmitter (9) is connected with frequency variator (5) by signaling line (6).
3, fixed screw air compressor according to claim 1 and 2 is controlled constant-voltage equipment automatically, it is characterized in that: described air compressor (1) comprises axial-flow blower (2) and motor (3) composition, described axial-flow blower (2) is connected with motor (3), the power line (4) of described frequency variator (5) is connected with motor (3) in the air compressor (1), and described pressure transmitter (9) is plugged in the snorkel (10).
4, fixed screw air compressor according to claim 1 and 2 is controlled constant-voltage equipment automatically, it is characterized in that: described air compressor (1), frequency variator (5), tracheae (7), gas receiver (8), pressure transmitter (9) form the closed loop control form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201128806U CN201335019Y (en) | 2009-01-13 | 2009-01-13 | Automatic-control constant pressure device of stationary type screw air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201128806U CN201335019Y (en) | 2009-01-13 | 2009-01-13 | Automatic-control constant pressure device of stationary type screw air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201335019Y true CN201335019Y (en) | 2009-10-28 |
Family
ID=41286668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201128806U Expired - Fee Related CN201335019Y (en) | 2009-01-13 | 2009-01-13 | Automatic-control constant pressure device of stationary type screw air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201335019Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235361A (en) * | 2010-04-20 | 2011-11-09 | 上海工程技术大学 | Method and device for constant pressure control of screw air compressor |
| CN103182119A (en) * | 2011-12-30 | 2013-07-03 | 北京谊安医疗系统股份有限公司 | Constant low-pressure air source adjustment device |
-
2009
- 2009-01-13 CN CNU2009201128806U patent/CN201335019Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235361A (en) * | 2010-04-20 | 2011-11-09 | 上海工程技术大学 | Method and device for constant pressure control of screw air compressor |
| CN103182119A (en) * | 2011-12-30 | 2013-07-03 | 北京谊安医疗系统股份有限公司 | Constant low-pressure air source adjustment device |
| CN103182119B (en) * | 2011-12-30 | 2016-06-22 | 北京谊安医疗系统股份有限公司 | A kind of constant low-pressure air source adjustment device |
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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: 20091028 Termination date: 20140113 |