CN208721166U - Throttling set convenient to overhaul - Google Patents
Throttling set convenient to overhaul Download PDFInfo
- Publication number
- CN208721166U CN208721166U CN201821275071.2U CN201821275071U CN208721166U CN 208721166 U CN208721166 U CN 208721166U CN 201821275071 U CN201821275071 U CN 201821275071U CN 208721166 U CN208721166 U CN 208721166U
- Authority
- CN
- China
- Prior art keywords
- downstream
- upstream
- straight pipe
- solenoid valve
- pipe
- 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
Links
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 140
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 210000005239 tubule Anatomy 0.000 claims description 68
- 238000009434 installation Methods 0.000 claims description 6
- 230000003111 delayed effect Effects 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 241000973497 Siphonognathus argyrophanes Species 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a kind of throttling sets convenient to overhaul, belong to pipeline flow monitoring field, its key points of the technical solution are that including upstream straight pipe, downstream straight pipe, taper orifice plate, upstream pressure ozzle, downstream pressure ozzle and differential pressure transmitter, diversion pipe is fixedly connected between upstream straight pipe and downstream straight pipe, diversion pipe is connected to upstream straight pipe and downstream straight pipe, it is fixedly connected with upstream straight tube solenoid valve on the straight pipe of upstream, downstream straight tube solenoid valve is fixedly connected on the straight pipe of downstream；Upstream water conservancy diversion solenoid valve is fixedly connected with close to upstream pressure ozzle one end in diversion pipe, downstream water conservancy diversion solenoid valve is fixedly connected with close to downstream pressure ozzle one end in diversion pipe, it solves when overhauling throttling set, the problem of liquid can not pass through out of throttling set, reach and imported the liquid in throttling set in diversion pipe, the effect of throttling set is overhauled under the premise of not influencing liquid and normally circulating.
Description
Technical field
The utility model relates to pipeline flows to monitor field, in particular to a kind of throttling set convenient to overhaul.
Background technique
Throttling set is a kind of stream device flowed through in pipeline in the fluid full of pipeline, and a fluid stream will form office at throttling
Portion is shunk, so that flow velocity be made to increase, static pressure is reduced, and it is poor that static pressure is then produced before and after throttling element.Throttling set is stream
A most important branch in meter, be a kind of typical differential pressure flowmeter be used to measure in current industrial production gas,
Most common a kind of flow instrument of liquid and vapor flow rate.
The prior art can refer to the Chinese invention patent that Authorization Notice No. is CN101329922B, and it discloses a kind of one
Change 1 nuclear one-stage throttling device of core, including throttling set ontology, upstream straight pipe, downstream straight pipe, the throttling set ontology, on
Straight pipe, downstream straight pipe inner hole having the same are swum, and the upstream straight pipe and downstream straight pipe is coaxial fixed respectively
It is connected in the both ends of throttling set ontology, is provided in the middle part of the inner hole of the throttling set ontology sharp with female coaxial cooperation
Orifice plate, and a pair of of pressure ozzle, the throttling set sheet are symmetrically arranged with respect to the two sides of plate orifice on the throttling set ontology
Body, upstream straight pipe, downstream straight pipe, plate orifice are process for integration.
When passing through liquid inside throttling set, if the numerical value of throttling set detection is excessively high, it is likely that be pressure ozzle
On have filiform wind or have pollutant accumulation, need to overhaul pressure ozzle, at this time it is generally necessary to by before throttling set
Late gate closing just can be carried out maintenance, and liquid can not pass through from the pipeline where throttling set at this time, influence liquid normal stream
It is logical.
Utility model content
The purpose of the utility model is to provide a kind of throttling sets convenient to overhaul, and the liquid in throttling set is led
In flow tube, throttling set is overhauled under the premise of not influencing liquid and normally circulating.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of throttling set convenient to overhaul, including upstream straight pipe and downstream straight pipe, upstream straight pipe and downstream are straight
Pipeline section is interconnected, and in upstream, the junction of straight pipe and downstream straight pipe is fixedly connected with taper orifice plate, in upstream straight pipe
On be fixedly connected with upstream pressure ozzle, be fixedly connected with pressure ozzle in downstream on the straight pipe of downstream, upstream pressure ozzle and
Downstream pressure ozzle is fixedly connected with differential pressure transmitter jointly, is fixedly connected with and leads between upstream straight pipe and downstream straight pipe
Flow tube, diversion pipe connection upstream straight pipe and downstream straight pipe, the both ends of diversion pipe are located at upstream pressure ozzle and downstream
The side that sampling nozzle is located remotely from each other；In upstream, straight pipe corresponds to upstream pressure ozzle and diversion pipe close to upstream straight pipe one end
Between be fixedly connected with upstream straight tube solenoid valve, in downstream, straight pipe corresponds to downstream pressure ozzle and diversion pipe close to downstream straight tube
Downstream straight tube solenoid valve is fixedly connected between Duan Yiduan；Upstream is fixedly connected with close to upstream pressure ozzle one end in diversion pipe
Water conservancy diversion solenoid valve is fixedly connected with downstream water conservancy diversion solenoid valve close to downstream pressure ozzle one end in diversion pipe.
By using above scheme, when throttling set works normally, upstream straight tube solenoid valve and downstream straight tube solenoid valve
For open state, upstream water conservancy diversion solenoid valve and downstream water conservancy diversion solenoid valve are in off state.It, can be with when throttling set occurs abnormal
Upstream straight tube solenoid valve and downstream straight tube solenoid valve are closed, upstream water conservancy diversion solenoid valve and downstream water conservancy diversion solenoid valve is opened, makes liquid
It is flowed through from diversion pipe, and without upstream pressure ozzle, downstream pressure ozzle and taper orifice plate.Staff can examine at this moment
Throttling set is repaired normally to circulate without will affect liquid.
Preferably, differential pressure transmitter is connected with control circuit, control circuit includes: to compare control module, described relatively to control
Molding block connects differential pressure transmitter, the flow rate of liquid in differential pressure transmitter real-time detection throttling set, when differential pressure transmitter exports
Flow rate of liquid be higher than preset value when, compare control module output control signal；Flow controlling module, the flow controlling module
Connection compares control module and corresponding to the control signal for comparing control module output, compares when flow controlling module receives
Be delayed one minute control upstream water conservancy diversion solenoid valve and downstream water conservancy diversion solenoid valve opening after the control signal of control module output；Straight tube
Control module, the straight tube control module connection compare control module and corresponding to the control letters for comparing control module output
Number, be delayed two minutes control upstream straight tube electromagnetism after straight tube control module receives the control signal for comparing control module output
Valve and downstream straight tube solenoid valve are closed.
By using above scheme, when differential pressure transmitter output is higher than the value of preset value, control circuit is first automatically opened
Upstream water conservancy diversion solenoid valve and downstream water conservancy diversion solenoid valve, allow the liquid to flow through throttling set from diversion pipe.If in upstream water conservancy diversion
Differential pressure transmitter still exports the value for being higher than preset value after solenoid valve and downstream water conservancy diversion solenoid valve open a period of time, then automatic control
Straight tube solenoid valve in upstream processed and downstream straight tube solenoid valve are closed.High degree of automation can judge automatically failure general condition simultaneously
Make respective reaction.
It is fixedly connected with preferably, corresponding to downstream straight tube solenoid valve in downstream straight pipe far from upstream straight tube solenoid valve one end
Upper tubule, upper tubule are connected to downstream straight pipe, throttling set after the installation is completed, upper tubule can be located at upstream straight pipe on
Side；Tubule solenoid valve is fixedly connected on upper tubule.
By using above scheme, when the numerical value of throttling set detection is excessive, it may be possible to the hydraulic pressure mistake in throttling set
Greatly, tubule solenoid valve can be opened at this time, and used upper tubule is drained, to reduce the hydraulic pressure in throttling set.
Preferably, control circuit further includes pressure control module, the pressure control module connection compares control module simultaneously
And corresponding to the control signal for comparing control module output, when pressure control module receives the control comparing control module and exporting
Tubule solenoid valve is controlled after signal to open.
By using above scheme, control circuit first opens tubule when the numerical value for detecting throttling set detection is excessive
Solenoid valve, upper tubule start to carry out draining pressure release, and high degree of automation can carry out pressure release automatically, hydraulic pressure is avoided to increase suddenly
Destroy throttling set.
Preferably, control circuit further includes alarm module, the alarm module connection is compared control module and is corresponded to
Compare the control signal of control module output, alarm module includes the alarm lamp being fixedly connected on diversion pipe, works as alarm module
Control alarm lamp obtains electric light after receiving the control signal for comparing control module output.
By using above scheme, control circuit can control alarm when the numerical value for detecting throttling set detection is excessive
Lamp alarm, reminds staff to come to overhaul.
It is fixedly connected with lower tubule between downstream straight tube solenoid valve and taper orifice plate preferably, corresponding in downstream straight pipe,
Lower tubule is connected to downstream straight pipe, throttling set after the installation is completed, lower tubule can be located at downstream straight pipe below；Under
Tubule shut-off valve is fixedly connected on tubule.
By using above scheme, in the case where liquid all passes through out of diversion pipe, tubule shut-off valve can be opened,
By between upstream straight tube solenoid valve and downstream straight tube solenoid valve liquid discharge, prevent staff take out upstream pressure ozzle and
Liquid is sprayed out of pipeline when the pressure ozzle of downstream, drenches or pollute ambient enviroment.
Preferably, being fixedly connected with drainpipe on diversion pipe, drainpipe is connected to diversion pipe, fixed on drainpipe to connect
It is connected to drain stop valve.
It, can be with when hydraulic pressure is excessive in throttling set, there is a possibility that destroying throttling set by using above scheme
Drain stop valve is opened, water is made to drain a part from drainpipe, reduces the hydraulic pressure in throttling set.
Preferably, upstream cut-off valve is fixedly connected with far from downstream straight pipe one end in upstream straight pipe, in downstream straight tube
Section is fixedly connected with downstream cut-off valve far from upstream straight pipe one end.
By using above scheme, upstream cut-off valve and downstream cut-off valve can control the on-off of entire throttling set,
Upstream cut-off valve and downstream cut-off valve can be closed when necessary, and staff is facilitated to overhaul entire throttling set.
In conclusion the utility model has the following beneficial effects:
1. upstream straight tube solenoid valve and downstream straight tube solenoid valve are open state, upstream when throttling set works normally
Water conservancy diversion solenoid valve and downstream water conservancy diversion solenoid valve are in off state.When throttling set occurs abnormal, upstream straight tube electricity can be closed
Magnet valve and downstream straight tube solenoid valve open upstream water conservancy diversion solenoid valve and downstream water conservancy diversion solenoid valve, flow through liquid from diversion pipe, and
Without upstream pressure ozzle, downstream pressure ozzle and taper orifice plate.Staff can overhaul at this moment throttling set without
It will affect liquid normally to circulate；
2. differential pressure transmitter output be higher than preset value value when, control circuit first automatically open upstream water conservancy diversion solenoid valve and
Downstream water conservancy diversion solenoid valve, allows the liquid to flow through throttling set from diversion pipe.If water conservancy diversion solenoid valve and downstream water conservancy diversion in upstream
Differential pressure transmitter still exports the value for being higher than preset value after solenoid valve opens a period of time, then automatically controls upstream straight tube solenoid valve
It is closed with downstream straight tube solenoid valve.High degree of automation can judge automatically failure general condition and make a response reaction；
3. when the numerical value of throttling set detection is excessive, it may be possible to which the hydraulic pressure in throttling set is excessive, can open at this time
Tubule solenoid valve, used upper tubule are drained, to reduce the hydraulic pressure in throttling set；
4. tubule shut-off valve can be opened in the case where liquid all passes through out of diversion pipe, by upstream straight tube electromagnetism
Liquid discharge between valve and downstream straight tube solenoid valve, when preventing staff from taking out upstream pressure ozzle and downstream pressure ozzle
Liquid is sprayed out of pipeline, drenches or pollute ambient enviroment；
5. when there is a possibility that destroying throttling set, drain stop valve can be opened when hydraulic pressure is excessive in throttling set,
So that water is drained a part from drainpipe, reduces the hydraulic pressure in throttling set.
Detailed description of the invention
Fig. 1 is the overall structure diagram of embodiment；
Fig. 2 is the cross-sectional view of prominent taper orifice plate in embodiment；
Fig. 3 is the schematic diagram of prominent drain stop valve in embodiment；
Fig. 4 is the cross-sectional view of prominent upper tubule and lower tubule position in embodiment；
Fig. 5 is the circuit diagram of prominent relatively control module in embodiment；
Fig. 6 is the electricity of prominent straight tube control module, flow controlling module, pressure control module and alarm module in embodiment
Road schematic diagram.
In figure, 1, upstream straight pipe；11, upstream flange；12, upstream straight tube solenoid valve；13, upstream cut-off valve；2, downstream
Straight pipe；21, downstream flange；22, upper tubule；221, tubule solenoid valve；23, lower tubule；231, tubule shut-off valve；24, downstream
Straight tube solenoid valve；25, downstream cut-off valve；3, diversion pipe；31, drainpipe；311, drain stop valve；32, upstream water conservancy diversion solenoid valve；
33, downstream water conservancy diversion solenoid valve；4, taper orifice plate；5, differential pressure transmitter；51, upstream pressure ozzle；511, upstream conducting tube；52,
Downstream pressure ozzle；521, downstream conducting tube；6, compare control module；7, straight tube control module；8, flow controlling module；9, it lets out
Press control module；91, alarm module；VCC, power supply；T, comparator；Q, triode；LED, alarm lamp；SB1, the first button are opened
It closes；SB2, the second button switch；SB3, third button switch；SB4, the 4th button switch；The electromagnetic wire of KA1, the first relay
Circle；The normally-closed contact of KA1-1, the first relay；The electromagnetic coil of KA2, the second relay；KA2-1, the second relay it is normally opened
Contact；The electromagnetic coil of KT1, the first on-delay time relay；KT1-1, the first on-delay time relay it is normally closed
Contact；The electromagnetic coil of KT2, the second on-delay time relay；KT2-1, the second on-delay time relay it is normally opened
Contact；R1, first resistor；R2, second resistance；R3,3rd resistor；R4, the 4th resistance；R5, the 5th resistance.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.The wherein identical attached drawing of identical components
Label indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to
It is the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and "outside" are referred respectively to towards or away from particular elements geometry
The direction at center.
Embodiment: a kind of throttling set convenient to overhaul, as depicted in figs. 1 and 2, including upstream straight pipe 1 and downstream it is straight
Pipeline section 2, upstream straight pipe 1 and downstream straight pipe 2 are interconnected, and in upstream, the junction of straight pipe 1 and downstream straight pipe 2 is fixed
It is connected with taper orifice plate 4.Upstream pressure ozzle 51 is fixedly connected on upstream straight pipe 1, pressure ozzle 51 in upstream is far from upper
Trip 1 one end of straight pipe is fixedly connected with upstream conducting tube 511；Downstream pressure ozzle 52 is fixedly connected on downstream straight pipe 2,
Downstream conducting tube 521 is fixedly connected with far from 2 one end of downstream straight pipe in downstream pressure ozzle 52；Upstream conducting tube 511 is under
Trip conducting tube 521 is fixedly connected with differential pressure transmitter 5 jointly.In upstream, straight pipe 1 is fixedly connected far from 2 one end of downstream straight pipe
There is upstream flange 11, straight pipe 2 is fixedly connected with downstream flange 21 far from 1 one end of upstream straight pipe in downstream.Throttling set is logical
Upstream flange 11 and downstream flange 12 and pipeline connection to be detected are crossed, liquid flows to downstream straight pipe 2 from upstream straight pipe 1, passes through
Flow velocity is accelerated when crossing taper orifice plate 4, and upstream pressure ozzle 51 and downstream pressure ozzle 52 detect upstream straight pipe 1 and downstream straight tube
The pressure of liquid, then flow velocity is passed in differential pressure transmitter 5 and is calculated, finally obtain the liquid in pipeline to be detected in section 2
The flow velocity of body.
As shown in Figures 2 and 3, diversion pipe 3, diversion pipe are fixedly connected between upstream straight pipe 1 and downstream straight pipe 2
3 connection upstream straight pipes 1 and downstream straight pipe 2, the both ends of diversion pipe 3 are located at upstream pressure ozzle 51 and downstream pressure pipe
The side that mouth 52 is located remotely from each other.In upstream, the corresponding upstream pressure ozzle 51 of straight pipe 1 is with diversion pipe 3 close to upstream straight pipe 1 one
Upstream straight tube solenoid valve 12 is fixedly connected between end, the corresponding downstream pressure ozzle 52 of straight pipe 2 is close with diversion pipe 3 in downstream
Downstream straight tube solenoid valve 24 is fixedly connected between 2 one end of downstream straight pipe.In diversion pipe 3 close to 51 one end of upstream pressure ozzle
It is fixedly connected with upstream water conservancy diversion solenoid valve 32, is fixedly connected with downstream water conservancy diversion close to 52 one end of downstream pressure ozzle in diversion pipe 3
Solenoid valve 33.When throttling set works normally, upstream straight tube solenoid valve 12 and downstream straight tube solenoid valve 24 are open state, on
Trip water conservancy diversion solenoid valve 32 and downstream water conservancy diversion solenoid valve 33 are in off state, and allow the liquid to pass through from taper orifice plate 4.When throttling fills
When setting appearance exception, upstream straight tube solenoid valve 12 and downstream straight tube solenoid valve 24 can be closed, opens upstream water conservancy diversion solenoid valve 32
With downstream water conservancy diversion solenoid valve 33, flow through liquid from diversion pipe 3, and without upstream pressure ozzle 51, downstream pressure ozzle 52
With taper orifice plate 4.Staff can overhaul throttling set at this moment and normally circulate without will affect liquid.
As shown in Figures 2 and 3, upstream cut-off valve is fixedly connected with far from 2 one end of downstream straight pipe in upstream straight pipe 1
13, in downstream, straight pipe 2 is fixedly connected with downstream cut-off valve 25, upstream cut-off valve 13 and downstream far from 1 one end of upstream straight pipe
Shut-off valve 25 can control the on-off of entire throttling set, can close upstream cut-off valve 13 and downstream cut-off valve if necessary
25, make the liquid all not flowed inside entire throttling set, staff is facilitated to overhaul entire throttling set.
As shown in Figures 2 and 3, drainpipe 31 is fixedly connected on diversion pipe 3, drainpipe 31 is connected to diversion pipe 3, row
Water pipe 31 is located between upstream water conservancy diversion solenoid valve 32 and downstream water conservancy diversion solenoid valve 33, and draining is fixedly connected on drainpipe 31 and is cut
Only valve 311.When hydraulic pressure is excessive in throttling set, there is a possibility that destroying throttling set, drain stop valve can be opened
311, so that water is drained a part from drainpipe 31, reduces the hydraulic pressure in throttling set.
As shown in Figure 3 and Figure 4, solid between the corresponding downstream straight tube solenoid valve 24 of downstream straight pipe 2 and downstream cut-off valve 25
Surely be connected with tubule 22, upper tubule 22 is connected to downstream straight pipe 2, throttling set after the installation is completed, upper tubule 22 is located at
1 top of upstream straight pipe.Tubule solenoid valve 221 is fixedly connected on upper tubule 22.The pipe diameter of upper tubule 22 is much smaller than
The pipe diameter of downstream straight pipe 2.When the numerical value of throttling set detection is excessive, it may be possible to the hydraulic pressure in throttling set is excessive,
Tubule solenoid valve 221 can be opened at this time, and used upper tubule 22 is drained, to reduce the hydraulic pressure in throttling set.Due to upper
Tubule 22 is located at the top of downstream straight pipe 2 after mounting, and the following tubule 23 of institute will not exclude too many liquid, waste liquid.
As shown in Figure 3 and Figure 4, fixed between the corresponding downstream straight tube solenoid valve 24 of downstream straight pipe 2 and taper orifice plate 4 to connect
Be connected to lower tubule 23, lower tubule 23 is connected to downstream straight pipe 2, throttling set after the installation is completed, lower tubule 23 is located at downstream
2 lower section of straight pipe.Tubule shut-off valve 231 is fixedly connected on lower tubule 23.If the upper draining of tubule 22 can not reduce throttling
Hydraulic pressure in device can open tubule shut-off valve 231, with lower 23 drainage and step-down of tubule.In upstream water conservancy diversion solenoid valve 32 under
It swims water conservancy diversion solenoid valve 33 to open, in the case where upstream straight tube solenoid valve 12 and the closing of downstream straight tube solenoid valve 24, can open thin
Liquid between upstream straight tube solenoid valve 12 and downstream straight tube solenoid valve 24 is discharged, prevents staff from taking by pipe shut-off valve 231
Upstream pressure ozzle 51 and liquid is sprayed out of pipeline when the pressure ozzle 52 of downstream out, drenches or pollutes ambient enviroment.Due to
Lower tubule 23 is located at 2 lower section of downstream straight pipe after mounting, so the liquid in downstream straight pipe 2 can be exhausted as much as possible.
As shown in Figure 5 and Figure 6, differential pressure transmitter 5 is connected with control circuit, and control circuit includes comparing control module 6, straight
Pipe control module 7, flow controlling module 8, pressure control module 9 and alarm module 91.Comparing control module 6 includes being electrically connected to
The power supply VCC of 5 one end of differential pressure transmitter, 5 other end of differential pressure transmitter are electrically connected with comparator T, and differential pressure transmitter 5 is electrically connected to
The positive input of comparator T, negative input input comparator T of the preset value Vref by comparator T, the output of comparator T
End is electrically connected with triode Q, and the output end of comparator T is electrically connected to the base stage of triode Q, the collector electrical connection of triode Q
There is first resistor R1, the first resistor R1 other end is electrically connected with power supply VCC；The emitter of triode Q is electrically connected with the first relay
The electromagnetic coil KA1 of device, the electromagnetic coil KA1 other end of the first relay are electrically connected with the electromagnetic coil KA2 of the second relay,
The electromagnetic coil KA2 other end of second relay is electrically connected with the electromagnetic coil KT1 of the first on-delay time relay, and first
The electromagnetic coil KT1 other end of the on-delay time relay is electrically connected with the electromagnetic coil of the second on-delay time relay
KT2, the electromagnetic coil KT2 other end ground connection of the second on-delay time relay.
As shown in fig. 6, flow controlling module 8 includes the first button switch SB1, first one end button switch SB1 is grounded, the
The one button switch SB1 other end is electrically connected with the normally-closed contact KT1-1 of the first on-delay time relay, the first on-delay
The normally-closed contact KT1-1 other end of the time relay is electrically connected with second resistance R2, and the second resistance R2 other end is electrically connected to
32 one end of water conservancy diversion solenoid valve is swum, water conservancy diversion solenoid valve 32 other end in upstream is electrically connected to 33 one end of downstream water conservancy diversion solenoid valve, and downstream is led
33 other end of manifold solenoid valve is electrically connected with power supply VCC.
As shown in fig. 6, straight tube control module 7 includes the second button switch SB2, second one end button switch SB2 is grounded, the
The two button switch SB2 other ends are electrically connected with the normally opened contact KT2-1 of the second on-delay time relay, the second on-delay
The normally opened contact KT2-1 other end of the time relay is electrically connected with 3rd resistor R3, and the 3rd resistor R3 other end is electrically connected to
12 one end of straight tube solenoid valve is swum, straight tube solenoid valve 12 other end in upstream is electrically connected to 24 one end of downstream straight tube solenoid valve, and downstream is straight
24 other end of pipe solenoid valve is electrically connected on power supply VCC.
As shown in fig. 6, pressure control module 9 includes third button switch SB3, third one end button switch SB3 is grounded, the
The three button switch SB3 other ends are electrically connected with the normally-closed contact KA1-1 of the first relay, the normally-closed contact KA1- of the first relay
1 other end is electrically connected with the 4th resistance R4, and the 4th resistance R4 other end is electrically connected to 221 one end of tubule solenoid valve, tubule electromagnetism
221 other end of valve is electrically connected on power supply VCC.
Alarm module 91 includes the alarm lamp LED (referring to Fig. 1) being fixedly connected on diversion pipe 3, the one end alarm lamp LED electricity
It is connected on power supply VCC, the alarm lamp LED other end is electrically connected with the 5th resistance R5, and the 5th resistance R5 other end is electrically connected with
The normally opened contact KA2-1 other end of the normally opened contact KA2-1 of two relays, the second relay are electrically connected with the 4th button switch
SB4, the 4th button switch SB4 other end ground connection.
Usage mode: throttling set is installed to by pipeline to be detected by upstream flange 11 and downstream flange 21 first
In, so that tubule 22 is located at 2 top of downstream straight pipe, lower tubule 23 is located at 2 lower section of downstream straight pipe.In the normal work of throttling set
When making, upstream cut-off valve 13, downstream cut-off valve 25, upstream straight tube solenoid valve 12 and downstream straight tube solenoid valve 24 are opened, upstream
Water conservancy diversion solenoid valve 32, downstream water conservancy diversion solenoid valve 33, drain stop valve 311, tubule shut-off valve 231 and tubule solenoid valve 221 close
It closes.First button switch SB1, the second button switch SB2, third button switch SB3 and the 4th button switch SB4 are closed.Liquid
Body flows through upstream straight pipe 1, taper orifice plate 4 and downstream straight pipe 2, and differential pressure transmitter 5 detects the flow velocity of liquid and output.
Flow rate of liquid is transferred to comparator T by differential pressure transmitter 5, and comparator T is compared with preset value Vref, if liquid
Flow velocity is greater than preset value Vref, then proves that the numerical value of throttling set detection is excessive, it may be possible to which hydraulic pressure is excessively high in throttling set, also has
It may be that upstream pressure ozzle 51 or downstream pressure ozzle 52 are blocked by filiform or impurity.Comparator T first exports high electricity at this time
Ordinary mail number gives the base stage of triode Q, and the collector and emitter of triode Q is connected, makes the electromagnetic coil of the first relay
KA1, the electromagnetic coil KA2 of the second relay, the first on-delay time relay electromagnetic coil KT1 and the second on-delay
The electromagnetic coil KT2 of the time relay obtains electric.The electromagnetic coil KA1 of first relay obtains the normally closed touching of the first relay of electric control
Point KA1-1 is disconnected, and opens 221 power loss of tubule solenoid valve, and upper tubule 22 starts to carry out draining pressure release.While the second relay
Electromagnetic coil KA2 obtain the second relay of electric control normally opened contact KA2-1 closure, make alarm lamp LED obtain it is electric light, play alarm
Effect reminds staff to come to overhaul.
If differential pressure transmitter 5 is still exported higher than preset value Vref's after tubule solenoid valve 221 opens a period of time
Value, it is likely that be that upstream pressure ozzle 51 or downstream pressure ozzle 52 are blocked by filiform or impurity, the first energization is prolonged at this time
When the time relay electromagnetic coil KT1 the normally-closed contact of the first on-delay time relay is controlled after electric one minute
KT1-1 is disconnected, and opens upstream water conservancy diversion solenoid valve 32 and 33 power loss of downstream water conservancy diversion solenoid valve, liquid can be flowed through from diversion pipe 3
Throttling set.
If differential pressure transmitter 5 is still after upstream water conservancy diversion solenoid valve 32 and downstream water conservancy diversion solenoid valve 33 open a period of time
Output is higher than the value of preset value Vref, then may determine that be upstream pressure ozzle 51 or downstream pressure ozzle 52 by filiform substantially
Or impurity blocking, at this time the electromagnetic coil KT2 of second on-delay time relay control second after obtaining electric two minutes are powered
The normally opened contact KT2-1 of time delay relay is closed, and upstream straight tube solenoid valve 12 and downstream straight tube solenoid valve 24 is made to obtain electric pass
It closes, the liquid in throttling set is made all to flow through throttling set from diversion pipe 3, and without bellmouth plate 4.Upstream straight tube at this time
There is no the liquid of flowing between solenoid valve 12 and downstream straight tube solenoid valve 24, staff can open tubule shut-off valve 231 will
Residual liquid is excluded from lower tubule 23, is then overhauled to upstream pressure ozzle 51 or downstream pressure ozzle 52.
Staff can open upstream water conservancy diversion solenoid valve 32 manually by disconnecting the first button switch SB1 and downstream is led
Manifold solenoid valve 33 is that temporarily can carry out shunting decompression using diversion pipe 3 in the case that hydraulic pressure is excessively high in throttling set in determination.
Staff can make upstream straight tube solenoid valve 12 and downstream straight tube solenoid valve 24 exist by disconnecting the second button switch SB2
It is opened manually under closed state, flows through liquid still from taper orifice plate 4, whether detection throttling set is fixed.Staff
Tubule solenoid valve 221 can be opened manually by disconnecting third button switch SB3, be drained with tubule 22.Work people
Member can be such that alarm lamp LED power loss extinguishes by disconnecting the 4th button switch SB4.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of throttling set convenient to overhaul, including upstream straight pipe (1) and downstream straight pipe (2), upstream straight pipe (1) and
Downstream straight pipe (2) is interconnected, and in upstream, the junction of straight pipe (1) and downstream straight pipe (2) is fixedly connected with bellmouth
Plate (4) is fixedly connected with upstream pressure ozzle (51) on upstream straight pipe (1), is fixedly connected on downstream straight pipe (2)
Downstream pressure ozzle (52), upstream pressure ozzle (51) and downstream pressure ozzle (52) are fixedly connected with differential pressure transmitter jointly
(5), it is characterised in that: diversion pipe (3), diversion pipe are fixedly connected between upstream straight pipe (1) and downstream straight pipe (2)
(3) be connected to upstream straight pipe (1) and downstream straight pipe (2), the both ends of diversion pipe (3) be located at upstream pressure ozzle (51) and
The side that downstream pressure ozzle (52) is located remotely from each other；
It is solid between upstream straight pipe (1) one end in upstream straight pipe (1) corresponding upstream pressure ozzle (51) and diversion pipe (3)
Surely it is connected with upstream straight tube solenoid valve (12), straight pipe (2) corresponding downstream pressure ozzle (52) and diversion pipe (3) are close in downstream
Downstream straight tube solenoid valve (24) is fixedly connected between downstream straight pipe (2) one end；
It is fixedly connected with upstream water conservancy diversion solenoid valve (32) close to upstream sampling tube mouth one end in diversion pipe (3), is leaned in diversion pipe (3)
Nearly downstream pressure ozzle (52) one end is fixedly connected with downstream water conservancy diversion solenoid valve (33).
2. throttling set convenient to overhaul according to claim 1, which is characterized in that differential pressure transmitter (5) is connected with control
Circuit processed, control circuit include:
Compare control module (6), relatively control module (6) connection differential pressure transmitter (5), differential pressure transmitter (5) is examined in real time
The flow rate of liquid in throttling set is surveyed, when the flow rate of liquid of differential pressure transmitter (5) output is higher than preset value, compares control module
(6) output control signal；
Flow controlling module (8), flow controlling module (8) connection, which is compared control module (6) and corresponded to, compares control
The control signal of module (6) output, after flow controlling module (8) receives the control signal for comparing control module (6) output
It is delayed one minute and controls upstream water conservancy diversion solenoid valve (32) and downstream water conservancy diversion solenoid valve (33) opening；
Straight tube control module (7), straight tube control module (7) connection, which is compared control module (6) and corresponded to, compares control
The control signal of module (6) output, after straight tube control module (7) receives the control signal for comparing control module (6) output
It is delayed two minutes and controls upstream straight tube solenoid valve (12) and downstream straight tube solenoid valve (24) closing.
3. throttling set convenient to overhaul according to claim 2, it is characterised in that: in the case where downstream straight pipe (2) are corresponding
Trip straight tube solenoid valve (24) is fixedly connected with tubule (22) far from upstream straight tube solenoid valve (12) one end, and upper tubule (22) is under
Swim straight pipe (2) connection, throttling set after the installation is completed, upper tubule (22) can be located at upstream straight pipe (1) above；Upper
Tubule solenoid valve (221) are fixedly connected on tubule (22).
4. throttling set convenient to overhaul according to claim 3, it is characterised in that: control circuit further includes pressure release control
Module (9), pressure control module (9) connection, which is compared control module (6) and corresponded to, compares control module (6) output
Signal is controlled, controls tubule solenoid valve after pressure control module (9) receives the control signal for comparing control module (6) output
(221) it opens.
5. throttling set convenient to overhaul according to claim 2, it is characterised in that: control circuit further includes alarm module
(91), alarm module (91) connection compares control module (6) and corresponding to the control letter for comparing control module (6) output
Number, alarm module (91) includes the alarm lamp being fixedly connected on diversion pipe (3), compares control when alarm module (91) receives
Control alarm lamp (LED) obtains electric light after the control signal of module (6) output.
6. throttling set convenient to overhaul according to claim 1, it is characterised in that: in the case where downstream straight pipe (2) are corresponding
It is fixedly connected with lower tubule (23) between trip straight tube solenoid valve (24) and taper orifice plate (4), lower tubule (23) and downstream straight pipe
(2) be connected to, throttling set after the installation is completed, lower tubule (23) can be located at downstream straight pipe (2) below；In lower tubule (23)
On be fixedly connected with tubule shut-off valve (231).
7. throttling set convenient to overhaul according to claim 1, it is characterised in that: be fixedly connected on diversion pipe (3)
Have drainpipe (31), drainpipe (31) is connected to diversion pipe (3), is fixedly connected with drain stop valve on drainpipe (31)
(311)。
8. throttling set convenient to overhaul according to claim 1, it is characterised in that: in upstream straight pipe (1) far under
Trip straight pipe (2) one end is fixedly connected with upstream cut-off valve (13), and in downstream, straight pipe (2) is far from upstream straight pipe (1) one end
It is fixedly connected with downstream cut-off valve (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821275071.2U CN208721166U (en) | 2018-08-08 | 2018-08-08 | Throttling set convenient to overhaul |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821275071.2U CN208721166U (en) | 2018-08-08 | 2018-08-08 | Throttling set convenient to overhaul |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208721166U true CN208721166U (en) | 2019-04-09 |
Family
ID=65976784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821275071.2U Expired - Fee Related CN208721166U (en) | 2018-08-08 | 2018-08-08 | Throttling set convenient to overhaul |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208721166U (en) |
-
2018
- 2018-08-08 CN CN201821275071.2U patent/CN208721166U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204973142U (en) | Oil phase aqueous phase separator | |
| CN205575804U (en) | Water purifier | |
| CN108569792A (en) | Water purification system and control method thereof | |
| CN106917960B (en) | Point defeated station field pressure regulator valve ice blocks up prevention robot control system(RCS) | |
| US20200180988A1 (en) | Water system having uv function and method for controlling same | |
| CN201039934Y (en) | Water-level control apparatus for drink-making machine heating water container | |
| CN208721166U (en) | Throttling set convenient to overhaul | |
| CN106382404A (en) | Centralized heating and water return-preventing intelligent control valve | |
| CN109323459A (en) | Waterway system and control method thereof | |
| CN101125241A (en) | Automatic fire-extinguishing system with temporary drainage function and temporary drainage method | |
| CN206583898U (en) | A kind of water acquisition water distribution pipeline system for water quality monitoring | |
| CN206111491U (en) | Automatic air compressor drainage system | |
| CN101787969B (en) | Numerical control system of minimum flow valve of governing feedwater pump and minimum flow control method thereof | |
| CN201560920U (en) | Automatic variable-speed water feeding pump | |
| CN102650859A (en) | Intelligent control system and control method of ultra-pure water dispenser | |
| CN109432680A (en) | A kind of method and system of hand from parallel end test water | |
| CN210661535U (en) | Pressure relief device for dead oil section of liquid pipeline | |
| CN109253768A (en) | A kind of theft-proof gas leakproof monitoring system and method | |
| CN208265884U (en) | water purification system | |
| CN208580080U (en) | A kind of fuel gas detection system | |
| CN208218391U (en) | A kind of automation drainage arrangement | |
| CN207066164U (en) | A kind of intermediate frequency furnace circulating water temperature alarm control unit | |
| CN207952572U (en) | Hot scarfing machine oxygen/fuel gas pipeline leakage Integrated Early Warning System | |
| CN209087701U (en) | A kind of electronic flow switch | |
| CN201486833U (en) | Minimum flow valve numerical control system of variable speed water feeding pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190409 |