CN207280536U - A kind of automatic blowing control system - Google Patents
A kind of automatic blowing control system Download PDFInfo
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- CN207280536U CN207280536U CN201721312364.9U CN201721312364U CN207280536U CN 207280536 U CN207280536 U CN 207280536U CN 201721312364 U CN201721312364 U CN 201721312364U CN 207280536 U CN207280536 U CN 207280536U
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- valve
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- pressure measuring
- blow down
- switch
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Abstract
The utility model provides a kind of automatic blowing control system, it is characterised in that：The automatic blowing control device includes：Flowmeter, differential pressure transmitter, compressed-air line and purging control device, the pressure guiding pipe of the flowmeter is connected by transmitter pressure measuring valve with the differential pressure transmitter, it is connected by blow down valve with the compressed-air line, the transmitter pressure measuring valve and the blow down valve are connected by controlling cable with the purging control device respectively；When the transmitter pressure measuring valve is opened, ensure the straight-through of the flowmeter and the differential pressure transmitter, when the transmitter pressure measuring valve is closed, the differential pressure transmitter and the compressed-air line are kept apart.
Description
Technical field
It the utility model is related to detection of gas flow rate technical field, and in particular to a kind of automatic blowing control system.
Background technology
Detection of gas flow rate is the thermal parameter of most critical in iron and steel enterprise's measuring system, is directly related to whole system
Reliable and stable operation.Gas flow measurement means are although varied at present, but the gas flow measurement based on differential pressure principle is still
It is most important mode.The primary element long-term work of differential pressure measurement among the air-flow containing moisture and dust, medium it is impure
Net and corrosivity is easily deposited in the dynamic and static pressure tracting pressuring hole of flow sensor, accumulative for a long time to form sensor measurement errors
Even block.This is all existing chronic disease of all differential pressure measuring installations, the accuracy of flow measurement of this problem strong influence.
How to ensure that the accuracy of process measurement and the blockage problem of flow measuring sensor are key issues during flow measurement,
Do not solve well for a long time.
Utility model content
In view of this, the utility model provides a kind of automatic blowing control system, to solve flow measuring sensor blocking
The problem of.
The utility model provides a kind of automatic blowing control system, it is characterised in that：The automatic blowing control device bag
Include：Flowmeter, differential pressure transmitter, compressed-air line and purging control device, the pressure guiding pipe of the flowmeter pass through pick-up
Device pressure measuring valve is connected with the differential pressure transmitter, is connected by blow down valve with the compressed-air line, the transmitter pressure
Valve and the blow down valve are connected by controlling cable with the purging control device respectively；When the transmitter pressure measuring valve is opened,
Ensure the straight-through of the flowmeter and the differential pressure transmitter, when the transmitter pressure measuring valve is closed, by the differential pressure transmitter
Keep apart with the compressed-air line.
Preferably, purging control device includes manual controlling brancher and automatically controls branch；
The manual controlling brancher includes the first blow down valve controlling brancher and the first transmitter pressure measuring valve controlling brancher, described
First blow down valve controlling brancher and the first transmitter pressure measuring valve controlling brancher respectively with the blow down valve and the transmitter pressure
Valve connects, for controlling the switch of the blow down valve and the transmitter pressure measuring valve；
The branch that automatically controls includes the second blow down valve controlling brancher and the second transmitter pressure measuring valve controlling brancher, described
Second blow down valve controlling brancher and the second transmitter pressure measuring valve controlling brancher respectively with the blow down valve and the transmitter pressure
Valve connects, for controlling the switch of the blow down valve and the transmitter pressure measuring valve.
Preferably, the first blow down valve controlling brancher include the sequentially connected 3rd by compress switch, the 4th by compressing switch
And second relay；Described 3rd is in normally off by compressing switch, and the described 4th is in normally open by compressing switch；It is described
4th, by the closure that compresses switch, triggers second relay, second relay controls the purging by its auxiliary contact
Valve is opened, and the 3rd pressing switches off, and second relay disconnects, and controls the blow down valve by its auxiliary contact
Disconnect；
The first transmitter pressure measuring valve controlling brancher include sequentially connected first by compress switch, second by compress switch with
And first relay；Described first is in normally off by compressing switch, and described second is in normally open by compressing switch；Described
Two, by the closure that compresses switch, trigger first relay, first relay controls the transmitter by its auxiliary contact
Pressure measuring valve is opened, and first pressing switches off, and first relay disconnects, and controls the change by its auxiliary contact
Device pressure measuring valve is sent to disconnect.
Preferably, it is respectively arranged with the second blow down valve controlling brancher and the second transmitter pressure measuring valve controlling brancher
Three controlling switches and the 4th controlling switch, the 3rd controlling switch and the 4th controlling switch connect with PLC controller respectively
Connect, disconnection and the closure of the 3rd controlling switch and the 4th controlling switch are controlled by the PLC controller.
Preferably, the blow down valve and blow down valve indicator light is also respectively connected for the transmitter pressure measuring valve and transmitter takes
Pressure valve indicator light, is respectively used to indicate the state of the blow down valve and the transmitter pressure measuring valve.
The utility model has the advantages and positive effects of：The utility model is provided with transmitter pressure measuring valve, the change
Send device pressure measuring valve to be installed on the flowmeter and lead to tell on the gas channels of differential pressure transmitter, meanwhile, the blow down valve is installed
Lead in the compressed-air line on the gas path pipe of the flowmeter.In normal work, the transmitter pressure measuring valve is opened
Open, the blow down valve is closed, and is ensured straight-through between the flowmeter and the differential pressure transmitter；It is described when being purged
Transmitter pressure measuring valve is closed, and the blow down valve is opened, and the compressed air of the high pressure in the compressed-air line leads to the stream
Gauge, compressed air is instantaneously clean by purging the deposit in the flowmeter impulse pipeline, so as to reach pre- anticlogging
Purpose；In addition, manually pattern and automatic mode control opening for blow down valve and transmitter pressure measuring valve to the utility model respectively
Open and close, operator can be brought great convenience with unrestricted choice operator scheme to user.
Brief description of the drawings
Fig. 1 is the attachment structure schematic diagram of the utility model；
Fig. 2 is the control principle drawing of the purging control device of the utility model；
Fig. 3 is the control principle drawing of the PLC controller of the utility model.
Embodiment
In order to be better understood from the utility model, with reference to specific embodiments and the drawings to the utility model into advance one
The description of step.
The utility model provides a kind of automatic blowing control system, as shown in Figure 1, the automatic blowing control system bag
Include：Flowmeter 1, differential pressure transmitter 2, compressed-air line 3 and purging control device 8.The pressure guiding pipe of the flowmeter 1 passes through
Transmitter pressure measuring valve 5 is connected with the differential pressure transmitter 2, is connected by blow down valve 6 with the compressed-air line 3, the change
Device pressure measuring valve 5 and the blow down valve 6 is sent to be connected respectively by controlling cable 7 with the purging control device 8；The transmitter takes
When pressure valve 5 is opened, ensure the straight-through of the flowmeter 1 and the differential pressure transmitter 2, will when the transmitter pressure measuring valve 5 is closed
The differential pressure transmitter 2 is kept apart with the compressed-air line 3.
The utility model is provided with transmitter pressure measuring valve 5, and the transmitter pressure measuring valve 5 is installed on the flowmeter 1 and leads to
On the gas channels of told differential pressure transmitter 2, meanwhile, the blow down valve 6 is installed on the compressed-air line 3 and leads to the stream
On the gas path pipe of gauge 1.In normal work, the transmitter pressure measuring valve 5 is opened, and the blow down valve 6 is closed, described in guarantee
It is straight-through between flowmeter 1 and the differential pressure transmitter 2；When being purged, the transmitter pressure measuring valve 5 is closed, described to blow
Sweep valve 6 to open, the compressed air of the high pressure in the compressed-air line 3 leads to the flowmeter 1, and compressed air is the stream
Deposit in 1 impulse pipeline of gauge is instantaneously clean by purging, so as to reach pre- anticlogging purpose.
In the utility model, the flowmeter 1 and the differential pressure transmitter 2 could be provided as it is multigroup, and correspondingly
Multigroup transmitter pressure measuring valve 5 and blow down valve 6 be set, and every group of pressure measuring valve 5 and blow down valve 6 by controlling cable 7 with it is described
Purging control device 8 connect, it is described purging control device 8 control respectively the unlatching of every group of transmitter pressure measuring valve 5 and blow down valve 6 with
Close.
Further, as shown in Fig. 2, the purging control device 8 includes manual controlling brancher 81 and automatically controls branch
Road 82；The manual controlling brancher 81 and the branch 82 that automatically controls are controlled by a selecting switch SA1.In the utility model
In volume one embodiment, the selecting switch SA1 can be rotary switch.
Further, the manual controlling brancher 81 includes the first blow down valve controlling brancher 811 and the first transmitter pressure
Valve controlling brancher 812, the first blow down valve controlling brancher 811 and the first transmitter pressure measuring valve controlling brancher 812 respectively with institute
State blow down valve 6 and the transmitter pressure measuring valve 5 connects, for controlling opening for the blow down valve 6 and the transmitter pressure measuring valve 5
Close.
Further, the first blow down valve controlling brancher 811 includes the sequentially connected 3rd by the SB3 that compresses switch, the 4th
By the SB4 and the second relay KA2 that compresses switch；Described 3rd is in normally off by the SB3 that compresses switch, and the described 4th by compressing switch
SB4 is in normally open；Described 4th, by the SB4 closures that compress switch, triggers the second relay KA2, second relay
KA2 controls the blow down valve 6 to open by its auxiliary contact, and the described 3rd is disconnected by the SB3 that compresses switch, second relay
KA2 is disconnected, and controls the blow down valve 6 to disconnect by its auxiliary contact.
The first transmitter pressure measuring valve controlling brancher 812 includes sequentially connected first by the SB1 that compresses switch, the second pressing
Switch SB2 and the first relay KA1；Described first is in normally off by the SB1 that compresses switch, and described second by the SB2 that compresses switch
In normally open；Described second, by the SB2 closures that compress switch, triggers the first relay KA1, the first relay KA1
The transmitter pressure measuring valve 5 is controlled to open by its auxiliary contact, described first is disconnected by the SB1 that compresses switch, first relay
Device KA1 is disconnected, and controls the transmitter pressure measuring valve 5 to disconnect by its auxiliary contact.
Further, the branch 82 that automatically controls includes the second blow down valve controlling brancher 821 and the second transmitter pressure
Valve controlling brancher 822, the second blow down valve controlling brancher 821 and the second transmitter pressure measuring valve controlling brancher 822 respectively with institute
State blow down valve 6 and the transmitter pressure measuring valve 6 connects, for controlling opening for the blow down valve 6 and the transmitter pressure measuring valve 5
Close.
Further, distinguish on the second blow down valve controlling brancher 821 and the second transmitter pressure measuring valve controlling brancher 822
It is provided with the 3rd controlling switch KA3 and the 4th controlling switch KA4, the 3rd controlling switch KA3 and the 4th controlling switch
KA4 is connected with PLC controller 9 respectively, and the 3rd controlling switch KA3 and the 4th controlling switch are controlled by the PLC controller 9
The disconnection of KA4 and closure.
Specifically, the utility model, which is provided with selection, then switchs SA1, select to control manually by the selecting switch SA1
Molding formula or automatic control mode, in the case of MANUAL CONTROL mode is selected, operator is by operation first by compressing switch
SB1, second control the transmitter pressure respectively by the SB3 and the 4th that compresses switch by the SB2 that compresses switch, the 3rd by the SB4 that compresses switch
The open and close of valve 5 and the blow down valve 6.Specifically, pressing described second by compress switch SB2 when, the transmitter pressure
Valve 5 is opened, pressing described first by compress switch SB1 when, the transmitter pressure measuring valve 5 is closed, and pressing the described 4th is by compressing switch
During SB4, the blow down valve 6 is opened, pressing the described 3rd by compress switch SB3 when, the blow down valve 6 is closed；When the automatic control of selection
In the case of molding formula, breaking for the 3rd controlling switch KA3 and the 4th controlling switch KA4 is controlled by the PLC controller 9
Open and close, to control the open and close for stating transmitter pressure measuring valve 5 and the blow down valve 6, specifically, the 3rd control
System switch KA3 closures, the blow down valve 6 are opened, and the 3rd controlling switch KA3 is disconnected, and the blow down valve 6 is closed；Described
Four controlling switch KA4 are closed, and the transmitter pressure measuring valve 5 is opened, and the 3rd controlling switch KA4 is disconnected, and the transmitter takes
Pressure valve 5 is closed.
Further, as shown in figure 3, in one embodiment of the utility model, the PLC controller 9 uses CPU
ST20, the CPU ST20 are powered using 24V, since whole system is powered using 220V, so the PLC controller 9
A voltage conversion unit 10 is connected, by 220V voltage conversions into 24V voltages, is powered for the PLC controller 9.The PLC
The input terminal of controller 9 accesses the selecting switch SA1, and output terminal connects the 3rd controlling switch KA3 and the 4th control
System switch KA4, when the selecting switch SA1 automatically control end conducting when, by the PLC controller 9 control it is described 3rd control
Disconnection and the closure of system switch KA3 and the 4th controlling switch KA4.
In the utility model, blow down valve indicator light is also respectively connected in the blow down valve 6 and the transmitter pressure measuring valve 5
HG1 and transmitter pressure measuring valve indicator light HR1, when the blow down valve 6 and the transmitter pressure measuring valve 5 are in opening, institute
State blow down valve indicator light HG1 and transmitter pressure measuring valve indicator light HR1 is lighted, when the blow down valve 6 and the transmitter pressure measuring valve 5
When being closed, blow down valve indicator light HG1 and transmitter pressure measuring valve the indicator light HR1 goes out.In addition, the utility model
Control power supply is also associated with power supply indicator HG, for indicating the connection of power supply.
Further, the purging control device 8 further includes control babinet 83, and touch is provided with the control babinet 83
Screen 831 and control panel 832, the select button SA1, first are by the SB1 that compresses switch, second by the SB2 that compresses switch, the 3rd pressing
SB3, the 4th are switched by SB4 and power supply indicator HG, blow down valve indicator light HG1 and the transmitter pressure measuring valve indicator light of compressing switch
HR1 may be contained within the control panel 832.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed, or further include as this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there are other identical element in process, method, article or equipment including the key element.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate the utility model example,
And the restriction not to embodiment.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.And thus
Among changes and variations that derived from are still in the scope of protection of the utility model.
Claims (5)
- A kind of 1. automatic blowing control system, it is characterised in that：The automatic blowing control device includes：Flowmeter, differential pressure become Device, compressed-air line and purging control device, the pressure guiding pipe of the flowmeter is sent to pass through transmitter pressure measuring valve and the difference Pressure transmitter connects, and is connected by blow down valve with the compressed-air line, the transmitter pressure measuring valve and the blow down valve point It is not connected by controlling cable with the purging control device；When the transmitter pressure measuring valve is opened, ensure the flowmeter with The differential pressure transmitter is led directly to, when the transmitter pressure measuring valve is closed, by the differential pressure transmitter and the compressed air hose Line is kept apart.
- 2. automatic blowing control system according to claim 1, it is characterised in that：Purging control device includes control manually Branch and automatically control branch；The manual controlling brancher includes the first blow down valve controlling brancher and the first transmitter pressure measuring valve controlling brancher, and described first Blow down valve controlling brancher and the first transmitter pressure measuring valve controlling brancher connect with the blow down valve and the transmitter pressure measuring valve respectively Connect, for controlling the switch of the blow down valve and the transmitter pressure measuring valve；The branch that automatically controls includes the second blow down valve controlling brancher and the second transmitter pressure measuring valve controlling brancher, and described second Blow down valve controlling brancher and the second transmitter pressure measuring valve controlling brancher connect with the blow down valve and the transmitter pressure measuring valve respectively Connect, for controlling the switch of the blow down valve and the transmitter pressure measuring valve.
- 3. automatic blowing control system according to claim 2, it is characterised in that：The first blow down valve controlling brancher bag Include the sequentially connected 3rd by compress switch, the 4th by compressing switch and the second relay；Described 3rd is in normally closed by compressing switch State, the described 4th is in normally open by compressing switch；Described 4th, by the closure that compresses switch, triggers second relay, institute State the second relay controls the blow down valve to open by its auxiliary contact, and the 3rd pressing switches off, described second after Electric appliance disconnects, and controls the blow down valve to disconnect by its auxiliary contact；The first transmitter pressure measuring valve controlling brancher include sequentially connected first by compress switch, second by compressing switch and the One relay；Described first is in normally off by compressing switch, and described second is in normally open by compressing switch；Described second presses Compress switch closure, triggers first relay, and first relay controls the transmitter pressure by its auxiliary contact Valve is opened, and first pressing switches off, and first relay disconnects, and controls the transmitter by its auxiliary contact Pressure measuring valve disconnects.
- 4. automatic blowing control system according to claim 2, it is characterised in that：The second blow down valve controlling brancher and The 3rd controlling switch and the 4th controlling switch are respectively arranged with second transmitter pressure measuring valve controlling brancher, the 3rd control is opened Close and the 4th controlling switch be connected with PLC controller respectively, by PLC controller control the 3rd controlling switch with The disconnection of 4th controlling switch and closure.
- 5. automatic blowing control system according to claim 2, it is characterised in that：The blow down valve and the transmitter take Blow down valve indicator light and transmitter pressure measuring valve indicator light is also respectively connected in pressure valve, is respectively used to indicate the blow down valve and described The state of transmitter pressure measuring valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721312364.9U CN207280536U (en) | 2017-10-11 | 2017-10-11 | A kind of automatic blowing control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721312364.9U CN207280536U (en) | 2017-10-11 | 2017-10-11 | A kind of automatic blowing control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207280536U true CN207280536U (en) | 2018-04-27 |
Family
ID=61980014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721312364.9U Active CN207280536U (en) | 2017-10-11 | 2017-10-11 | A kind of automatic blowing control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207280536U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693107A (en) * | 2019-03-12 | 2020-09-22 | 上海梅山钢铁股份有限公司 | Multifunctional probe combination device of power bar flowmeter |
| CN112859729A (en) * | 2021-01-18 | 2021-05-28 | 杭州好一科技有限公司 | Circuit structure for multi-path sharing of DO port |
-
2017
- 2017-10-11 CN CN201721312364.9U patent/CN207280536U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693107A (en) * | 2019-03-12 | 2020-09-22 | 上海梅山钢铁股份有限公司 | Multifunctional probe combination device of power bar flowmeter |
| CN112859729A (en) * | 2021-01-18 | 2021-05-28 | 杭州好一科技有限公司 | Circuit structure for multi-path sharing of DO port |
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