CN206754813U - A kind of control device of stable pneumatic branch ductwork pressure - Google Patents
A kind of control device of stable pneumatic branch ductwork pressure Download PDFInfo
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- CN206754813U CN206754813U CN201720535395.4U CN201720535395U CN206754813U CN 206754813 U CN206754813 U CN 206754813U CN 201720535395 U CN201720535395 U CN 201720535395U CN 206754813 U CN206754813 U CN 206754813U
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- gas
- throttle valve
- pressure
- proportional throttle
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Abstract
The utility model discloses a kind of control device of stable pneumatic branch ductwork pressure.Described control device is：It is made up of source of the gas, separator, air accumulator, stop valve, pressure sensor, proportional throttle valve, other normal gas equipments, intermittent big flow gas equipment, programmable controller；Each branch road proportional throttle valve is respectively arranged in the entrance of the intermittent big flow gas equipment of transmission pipeline network, each branch pressure sensor is respectively arranged in the entrance of each branch road proportional throttle valve, and pressure sensor and proportional throttle valve are connected to programmable controller by wire respectively；Described control device realizes following function：When with gas branch road measured pressure value not in the permission pressure limit that the branch road is set, corresponding controlled quentity controlled variable is then exported to proportional throttle valve, the reversely aperture of the valve port of regulation proportional throttle valve, the stable pressure with gas branch road, the quality of filling gas of the whole pneumatic pipe network branch road of raising.
Description
Technical field
The utility model belongs to Pneumatic power-saving and control field, more particularly to a kind of control of stable pneumatic branch ductwork pressure
Device processed.
Background technology
In the pneumatic pipe network of the enterprises such as aluminium alloy wheel hub, electrolytic aluminium, tire, due to production line periodic maintenance or production line work
Skill requirement, often uses intermittent big flow gas blowing device；These equipment are opened every time frequently results in pneumatic pipe network pressure
The wide fluctuations of power, the normal production of other production lines can be influenceed when serious.
In order to ensure the normal operation of other production lines, enterprise's generally use improves the side of whole compressed air pipe network pressure
Method；Compressed air pipe network pressure also increases power consumption, compressed air leakage amount of whole system etc. while raising.
In order to reduce the range of pressure fluctuations of pneumatic pipe network, the quality of filling gas of pneumatic pipe network is improved it is necessary to for intermittence
Big flow gas equipment optimizes to pneumatic pipe network system, therefore how to go to identify intermittent big flow gas equipment just very
It is crucial.
How the utility model is for identifying and controlling intermittent this problem of big flow gas equipment, it is proposed that Yi Zhongwen
Determine the control device of pneumatic branch ductwork pressure.
The content of the invention
The purpose of this utility model is：For how to identify and control intermittent this problem of big flow gas equipment, carry
A kind of control device of stable pneumatic branch ductwork pressure is gone out.
The utility model is：
A kind of control device of stable pneumatic branch ductwork pressure, it includes source of the gas（1）, separator（2）, air accumulator（3）、
Stop valve（4）, pressure sensor（5）, proportional throttle valve（6）Other normal gas equipments（7）, intermittent big flow sets with gas
It is standby（8）, programmable controller（9）.Each branch road proportional throttle valve（6）It is respectively arranged in the intermittent big flow gas of transmission pipeline network
The entrance of equipment, each branch pressure sensor（5）It is respectively arranged in the entrance of each branch road proportional throttle valve, pressure sensor（5）
And proportional throttle valve（6）Programmable controller is connected to by wire respectively（9）.
The control device, wherein, each branch pressure sensor（5）It is each with gas branch pressure value and to be transmitted for gathering
To programmable controller（9）；Programmable controller（9）For handling each branch pressure data, control ratio section is calculated
The controlled quentity controlled variable of the valve port opening of valve is flowed, and controlled quentity controlled variable is sent to proportional throttle valve（6）, control and adjust proportional throttle valve（6）
Valve port opening, reduce the air consumption of intermittent big flow gas equipment, ensure branch road and be responsible for the pressure stability of net gas.
When this needs proportional throttle valve with gas branch road（6）Valve port aperture increase to reduce branch pressure when, the valve port
Aperture increase along the positive number using more than 1 rule incremental as the logarithmic function at bottom, the valve port of proportional throttle valve at the beginning
The speed of opening is maximum, as this uses the reduction of gas branch pressure, proportional throttle valve（6）Valve port opening speed be gradually reduced,
Allow until this is reduced to gas branch pressure in pressure limit；When this needs proportional throttle valve with gas branch road（6）Valve port
When aperture reduces to increase branch pressure, the logarithmic function of the aperture of the valve port along the positive number using more than 0 and less than 1 bottom of as
The rule successively decreased reduces, at the beginning proportional throttle valve（6）The speed closed of valve port it is maximum, as this uses the increasing of gas branch pressure
Greatly, proportional throttle valve（6）Valve port closing velocity be gradually reduced, until this increases to permission pressure limit with gas branch pressure
It is interior.
The control device of a kind of stable pneumatic branch ductwork pressure provided by the utility model, by the way that each branch road is used into gas
Pressure stability is controlled in the permission pressure limit of setting, reduces the range of pressure fluctuations of each branch road of pneumatic pipe network, is improved pneumatic
The overall quality of filling gas of pipe network, ensure the normal operation of all production lines, improve tradition to improve gas source feed amount to stablize
The increase compressor of ductwork pressure opens the control method of number of units, realizes the section of each branch road pipe network of pneumatic system to greatest extent
Can consumption reduction.
Brief description of the drawings
Fig. 1 is a kind of control device composition frame chart of stable pneumatic branch ductwork pressure.
Fig. 2 is a kind of control flow chart of the control device of stable pneumatic branch ductwork pressure.
Embodiment
As shown in figure 1, a kind of control device of stable pneumatic branch ductwork pressure, by source of the gas（1）, separator（2）, gas storage
Tank（3）, stop valve（4）, pressure sensor（5）, proportional throttle valve（6）Other normal gas equipments（7）, intermittent big flow
Gas equipment（8）, programmable controller（9）Composition.
Wherein, respectively with gas branch pressure sensor（5）It is each with gas branch pressure value and to be sent to programmable for gathering
Sequence controller（9）；Programmable controller（9）Handled with gas branch pressure value each, and by result export to than
Example choke valve（6）.
As shown in Figure 1, gas branch pressure sensor is used by each（5）And programmable controller（9）It is installed to pneumatic pipe network
In system, pneumatic system and control device are opened, in programmable controller（9）The good each permission pressure with gas branch road of inner setting
Scope, and debug and finish.
Respectively the fluctuation range with gas branch pressure is allowing in pressure limit during pneumatic pipe network normal operation, intermittent big stream
The moment that gas equipment is measured in opening and closing can produce a larger fluctuation to pneumatic pipe network branch pressure, i.e., intermittent big
Flow gas equipment can be obviously reduced in the moment pneumatic pipe network branch pressure of unlatching, and intermittent big flow gas equipment is being closed
Moment pneumatic pipe network branch pressure can significantly increase.
As shown in Fig. 2, when the maximum for being higher than the permission pressure limit that the branch road is set with gas branch road measured pressure value
When, programmable controller（9）Control the branch road proportional throttle valve（6）Valve port opening increase, to improve air consumption, reduction gas
The pressure of branch road；When being less than the minimum value for the permission pressure limit that the branch road is set with gas branch road measured pressure value, may be programmed
Controller（9）Control the branch road proportional throttle valve（6）Valve port opening reduce, to reduce air consumption, the pressure of increase gas branch road
Power.
With above-mentioned process control and adjust proportional throttle valve（6）Valve port opening, each branch road is controlled with atmospheric pressure is stable
System reduces the range of pressure fluctuations of each branch road of pneumatic pipe network in the permission pressure limit of setting, improve the whole of pneumatic pipe network
Body quality of filling gas, ensure the normal operation of all production lines.
Claims (2)
- A kind of 1. control device of stable pneumatic branch ductwork pressure, it is characterised in that：By source of the gas（1）, separator（2）, gas storage Tank（3）, stop valve（4）, pressure sensor（5）, proportional throttle valve（6）, other normal gas equipments（7）, intermittent big flow Gas equipment（8）, programmable controller（9）Composition；Wherein, each branch road proportional throttle valve（6）The entrance of the intermittent big flow gas equipment of transmission pipeline network is respectively arranged in, respectively Branch pressure sensor（5）It is respectively arranged in the entrance of each branch road proportional throttle valve, pressure sensor（5）And proportional throttle valve （6）Programmable controller is connected to by wire respectively（9）.
- A kind of 2. control device of stable pneumatic branch ductwork pressure according to claim 1, it is characterised in that：Each Road pressure sensor（5）It is each with gas branch pressure value and to be sent to programmable controller for gathering（9）；Programmable control Device processed（9）For handling each branch pressure data, the controlled quentity controlled variable of the valve port opening of control proportional throttle valve is calculated, and will control Amount is sent to proportional throttle valve（6）, control and adjust proportional throttle valve（6）Valve port opening, reduce intermittent big flow gas The air consumption of equipment, ensure branch road and be responsible for the pressure stability of net gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720535395.4U CN206754813U (en) | 2017-05-16 | 2017-05-16 | A kind of control device of stable pneumatic branch ductwork pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720535395.4U CN206754813U (en) | 2017-05-16 | 2017-05-16 | A kind of control device of stable pneumatic branch ductwork pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754813U true CN206754813U (en) | 2017-12-15 |
Family
ID=60617891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720535395.4U Expired - Fee Related CN206754813U (en) | 2017-05-16 | 2017-05-16 | A kind of control device of stable pneumatic branch ductwork pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206754813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035970A (en) * | 2017-05-16 | 2017-08-11 | 河南理工大学 | The control device and control method of a kind of stable pneumatic branch ductwork pressure |
-
2017
- 2017-05-16 CN CN201720535395.4U patent/CN206754813U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035970A (en) * | 2017-05-16 | 2017-08-11 | 河南理工大学 | The control device and control method of a kind of stable pneumatic branch ductwork pressure |
| CN107035970B (en) * | 2017-05-16 | 2023-10-27 | 河南理工大学 | Control device and control method for stabilizing pneumatic branch pipe network pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20200516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |