CN207880452U - Tolerance dispatching device between compressed air pipe network - Google Patents
Tolerance dispatching device between compressed air pipe network Download PDFInfo
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- CN207880452U CN207880452U CN201820026006.XU CN201820026006U CN207880452U CN 207880452 U CN207880452 U CN 207880452U CN 201820026006 U CN201820026006 U CN 201820026006U CN 207880452 U CN207880452 U CN 207880452U
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- compressed air
- tolerance
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Abstract
The utility model discloses tolerance dispatching devices between a kind of compressed air pipe network, including the connecting line being arranged between high pressure pipe network and low-pressure pipe network, the connecting line is equipped with electric control valve and the control cabinet for controlling the motorized adjustment valve opening, and signal processing module, the PID regulator being electrically connected with the signal processing module and the motor circuit being electrically connected with the PID regulator are equipped in the control cabinet；The signal processing module, which powers on, is connected with the first pressure sensor for detecting high pressure pipe network pressure and the second pressure sensor for detecting low-pressure pipe network pressure, and the motor circuit is electrically connected with the electric control valve.Tolerance dispatching device between the compressed air pipe network of the utility model while giving full play to current aerogenesis capacity of equipment, and keeps entire compressed air system operation more stable for being controlled to the scheduling air demand of low-pressure pipe network high pressure pipe network.
Description
Technical field
The utility model belongs to compressed air system technical field, and specifically tolerance is dispatched between a kind of compressed air pipe network
Device.
Background technology
Compressed air system is widely used in each field such as oil, chemical industry, metallurgy, thermoelectricity, chemical fibre.Compressed air gas
Equipment variety type is various, and the requirement for the pressure value of the compressed air of supply is also had nothing in common with each other.Many enterprises all can basis
Different gas equipments require compressed air pressure value the difference of height, setting 2 or the compression of a plurality of different pressures grade
Air pipe network.Incident is that this mode causes high-pressure air feed ability superfluous sometimes, and low pressure air demand is insufficient
Situation.Some Enterprises are solved by newly purchasing the method for low pressure aerogenesis equipment, but this is that larger equipment is thrown again for enterprise
Enter.Some Enterprises dispatch high pressure residual air to low-pressure pipe network by being provided with connecting pipeline, but are not often set in connecting pipeline
Any control device is set, since compressed gas spontaneous can be flowed to low-pressure side, this results in high pressure pipe network to low-pressure pipe network
Connection scheduling quantum cannot be controlled effectively, and pipe network stability reduces, or even can cause the generation of harmful fluctuation of high-voltage tube net side.
Therefore a kind of more economical and feasible scheme is needed.
Invention content
In view of this, the purpose of this utility model is to provide tolerance dispatching device between a kind of compressed air pipe network, it is used for
High pressure pipe network is controlled to the scheduling air demand of low-pressure pipe network, while giving full play to current aerogenesis capacity of equipment, again
Keep entire compressed air system operation more stable.
In order to achieve the above objectives, the utility model provides the following technical solutions：
Tolerance dispatching device between a kind of compressed air pipe network, including the connection that is arranged between high pressure pipe network and low-pressure pipe network
Pipeline, the connecting line are equipped with electric control valve and the control cabinet for controlling the motorized adjustment valve opening, the control
It is electric equipped with signal processing module, the PID regulator being electrically connected with the signal processing module and with the PID regulator in case processed
The motor circuit of connection；The signal processing module powers on the first pressure being connected with for detecting high pressure pipe network pressure and senses
Device and second pressure sensor for detecting low-pressure pipe network pressure, the motor circuit are electrically connected with the electric control valve.
Further, the connecting line is equipped with manual ball valve.
Further, the manual ball valve is set as two and is located at the both sides of the electric control valve.
Further, it is additionally provided with man-machine interaction unit on the control cabinet.
Further, the man-machine interaction unit includes voltage display instrument, electric current display instrument and touch screen.
The beneficial effects of the utility model are：
Tolerance dispatching device between the compressed air pipe network of the utility model, by the way that motorized adjustment is arranged on connecting line
Valve, and using the aperture of control cabinet control electric control valve, principle is as follows：Signal processing module is received to be passed from first pressure
The setting of high pressure pipe network and low-pressure pipe network is allowed to press by the pressure detection data of sensor and second pressure sensor, PID regulator
Force value range is compared with pressure detection data, and then motor circuit controls the aperture of electric control valve according to comparison result,
In this way, can be used to control high pressure pipe network to the scheduling air demand of low-pressure pipe network, conditional increase or smaller scheduling
Amount or even temporary cut-out connecting pipeline, while giving full play to current aerogenesis capacity of equipment, and make entire compressed air
System operation is more stable.
Description of the drawings
In order to keep the purpose of this utility model, technical solution and advantageous effect clearer, the utility model provides as follows
Attached drawing illustrates：
The structural schematic diagram of Fig. 1 tolerance dispatching device embodiments between the utility model compressed air pipe network.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art
The utility model can be better understood from and can be practiced, but illustrated embodiment is not as the restriction to the utility model.
As shown in Figure 1, between the utility model compressed air pipe network tolerance dispatching device embodiment structural schematic diagram.This
Tolerance dispatching device between the compressed air pipe network of embodiment, including the connecting line that is arranged between high pressure pipe network and low-pressure pipe network
13, connecting line 13 is equipped with electric control valve 14 and the control cabinet 11 for controlling 14 aperture of electric control valve, control cabinet 11
It is interior to be equipped with signal processing module, the PID regulator being electrically connected with signal processing module and the power electric being electrically connected with PID regulator
Road；Signal processing module, which powers on, is connected with first pressure sensor 12 for detecting high pressure pipe network pressure and low for detecting
The second pressure sensor 15 of ductwork pressure, motor circuit is pressed to be electrically connected with electric control valve 14.
Specifically, connecting line 13 is equipped with manual ball valve 16, the manual ball valve 16 of the present embodiment is set as two and divides
Not Wei Yu electric control valve 14 both sides, in repair and maintenance cut off connecting line 13.On the control cabinet 11 of the present embodiment
It is additionally provided with man-machine interaction unit, man-machine interaction unit includes voltage display instrument, electric current display instrument and touch screen, is conveniently operated
Personnel operate and read data.
Wherein, first pressure sensor 12 and second pressure sensor 15 are respectively used to acquisition high pressure pipe network and low-pressure pipe network
Pressure signal, signal processing module converts thereof into standard analog signal；PID regulator is by high pressure pipe network and low-pressure pipe network
Setting allows range of pressure values to be compared with pressure detection data, is finally opened electric control valve 14 using motor circuit
The adjusting of degree, scheduling pressure of the regulated value that electric control valve 14 is used to be exported according to control cabinet 11 to high pressure pipe network to low-pressure pipe network
Contracting air capacity is adjusted.
Below by the control mode and logic of specific example tolerance dispatching device between the present embodiment compressed air pipe network
It illustrates.
By taking certain electric elements manufacturing enterprise as an example, which is provided with the pipe network of 2 different pressures grades, respectively
0.8Mpa high pressure pipe networks and 0.5Mpa low-pressure pipe networks.Each condition value is as follows：
The preset permission pressure limit value of high pressure pipe network is 0.7-0.8Mpa, when ductwork pressure value ＜ 0.7Mpa, compressor
Load, ductwork pressure value ＞ 0.8Mpa, compressor unloading, actual conditions, which are high pressure producing gas capacities of equipment, surplus, often unloads
Carry phenomenon；
The preset permission pressure limit value of low-pressure pipe network is 0.4-0.5Mpa, when ductwork pressure value ＜ 0.4Mpa, compressor
Load, ductwork pressure value ＞ 0.5Mpa, compressor unloading, actual conditions are the pressures since low pressure aerogenesis equipment ability itself is limited
The case where contracting machine runs almost without unloading, often there are ＜ 0.4Mpa in the pressure value of low-pressure pipe network, but compressor has been fully loaded with fortune
Row, production can only reluctantly be carried out in ＜ 0.4Mpa, and there are risks；
Between installation the present embodiment compressed air pipe network after tolerance dispatching device, control mode and logic are as follows：
1. when the low-pressure pipe network pressure value ＜ 0.4Mpa and first pressure sensor 12 that second pressure sensor 15 detects are examined
The high pressure pipe network pressure value ＞ 0.7Mpa of survey, then the opening of electric control valve 14 or increase aperture, increase high pressure pipe network to low-voltage tube
The compressed air scheduling quantum of net.During this：
1）If the low-pressure pipe network pressure value that second pressure sensor 15 detects is gradually increasing but does not reach ＞ 0.45Mpa, protect
The aperture for holding electric control valve 14 is not further added by.
2）If the low-pressure pipe network pressure value that second pressure sensor 15 detects gradually rises up to ＞ 0.47Mpa, reduce electricity
The aperture of dynamic regulating valve 14, avoids excessively dispatching, and causes low pressure gas supply unit unloading.
3）If the low-pressure pipe network pressure value that second pressure sensor 15 detects gradually decreases down ＜ 0.43Mpa, keep
The aperture of electric control valve 14 no longer reduces.
In whole process, high pressure pipe network air feed equipment is always according to the default pressure limit value allowed of high pressure pipe network（0.7-
0.8Mpa）Operation as desired plus unloads.
2. when there is extreme situation, i.e., second pressure sensor 15 detects low-pressure pipe network pressure value ＜ 0.4Mpa and the
The high pressure pipe network pressure value also ＜ 0.7Mpa of one pressure sensor 12 detection, according to previous operating experience, low-voltage equipment is to supplying
The requirement of gas is less than high-tension apparatus, and switch board 11 is preset with the preferential basic principle logic for ensureing high-tension apparatus gas supply, subtracts at this time
It is small to even shut off electric control valve 14, to ensure the normal operation of high-tension apparatus；Wait for the decline of high pressure pipe network load or high pressure producing gas
Equipment aerogenesis increases, and when making the high pressure pipe network pressure value ＞ 0.7Mpa of the detection of first pressure sensor 12, just allows to open or increase
Add 14 aperture of electric control valve.
The Overcapacities of high pressure producing gas equipment are utilized in the present embodiment well, and compressed air is dispatched to low-pressure pipe network,
On the basis of ensureing high pressure pipe network inherently safe reliability service, the conditional operation for making low-pressure pipe network also safety and reliability, with
Lower input reaches a solution of a problem.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the utility model, the utility model
Protection domain it is without being limited thereto.Those skilled in the art on the basis of the utility model made by equivalent substitute or change
It changes, both is within the protection scope of the present invention.The scope of protection of the utility model is subject to claims.
Claims (5)
1. tolerance dispatching device between a kind of compressed air pipe network, including the connecting tube that is arranged between high pressure pipe network and low-pressure pipe network
Road（13）, it is characterised in that：The connecting line（13）It is equipped with electric control valve（14）With for controlling the motorized adjustment
Valve（14）The control cabinet of aperture（11）, the control cabinet（11）It is interior to be equipped with signal processing module and signal processing module electricity
The PID regulator of connection and the motor circuit being electrically connected with the PID regulator；The signal processing module, which powers on, to be connected with
First pressure sensor for detecting high pressure pipe network pressure（12）It is sensed with the second pressure for detecting low-pressure pipe network pressure
Device（15）, the motor circuit and the electric control valve（14）Electrical connection.
2. tolerance dispatching device between compressed air pipe network according to claim 1, it is characterised in that：The connecting line
（13）It is equipped with manual ball valve（16）.
3. tolerance dispatching device between compressed air pipe network according to claim 2, it is characterised in that：The manual ball valve
（16）It is set as two and is located at the electric control valve（14）Both sides.
4. according to tolerance dispatching device between claim 1-3 any one of them compressed air pipe networks, it is characterised in that：The control
Case processed（11）On be additionally provided with man-machine interaction unit.
5. tolerance dispatching device between compressed air pipe network according to claim 4, it is characterised in that：The human-computer interaction list
Member includes voltage display instrument, electric current display instrument and touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820026006.XU CN207880452U (en) | 2018-01-08 | 2018-01-08 | Tolerance dispatching device between compressed air pipe network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820026006.XU CN207880452U (en) | 2018-01-08 | 2018-01-08 | Tolerance dispatching device between compressed air pipe network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207880452U true CN207880452U (en) | 2018-09-18 |
Family
ID=63506839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820026006.XU Active CN207880452U (en) | 2018-01-08 | 2018-01-08 | Tolerance dispatching device between compressed air pipe network |
Country Status (1)
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| CN (1) | CN207880452U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639200A (en) * | 2021-08-16 | 2021-11-12 | 南京钢铁股份有限公司 | Pipeline system and method for merging high-pressure oxygen of chemical plant into medium-pressure oxygen pipe network of iron and steel plant |
-
2018
- 2018-01-08 CN CN201820026006.XU patent/CN207880452U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639200A (en) * | 2021-08-16 | 2021-11-12 | 南京钢铁股份有限公司 | Pipeline system and method for merging high-pressure oxygen of chemical plant into medium-pressure oxygen pipe network of iron and steel plant |
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