CN207454233U - A kind of hand auto-controlled water-pumping system of steam condensate - Google Patents
A kind of hand auto-controlled water-pumping system of steam condensate Download PDFInfo
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- CN207454233U CN207454233U CN201721358799.7U CN201721358799U CN207454233U CN 207454233 U CN207454233 U CN 207454233U CN 201721358799 U CN201721358799 U CN 201721358799U CN 207454233 U CN207454233 U CN 207454233U
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Abstract
A kind of hand auto-controlled water-pumping system of steam condensate provided by the utility model; including main pump M1, stand-by pump M2, major loop, hand/automatic control loop and high/low liquid level gauge signal control loop; wherein; major loop provides power supply to main pump M1 and stand-by pump M2, and hand/automatic control loop is used to control manual start and stop or the automatic start-stop of main pump M1/ stand-by pumps M2；The water signal of condensed water in high/low limit liquid level gauge signal control loop acquisition steam condensate cistern, control hand/automatic control loop control main pump M1/ stand-by pump M2 start and stop；The system controls accurate, easy to maintain, at low cost, stable and reliable operation, is easily particularly suitable for the use of drawing water of chemical enterprise public water utilities steam condensate water the advantages that repair；Meanwhile controlled compared with PLC, it has at low cost, stable, and electric control loop is simple, the advantages that facilitating trouble shoot.
Description
Technical field
The utility model is related to the hand auto-controlled water-pumping systems of electrical and instrument field more particularly to a kind of steam condensate
System.
Background technology
When carrying out 1,000,000 tons/year of polyvinyl chloride circulation comprehensives using project, main construction device includes chemical enterprise
1000000 tons/year of polyvinyl chloride, 800,000 tons/year of soda equipments, 4 × 125MW bleeder direct air-cooling turbine power generator and
2400000 tons/year of industrial residue cement plants, electrolysis unit water system and public water system in 1,000,000 tons/year of polyvinyl chloride projects
Steam condensate is recycled in system, the pumping system of steam condensate recycling can is during design and use
It was found that there are following defect and failures：
1. in public water utilities the pumping system of steam condensate tank not design automatically control, can only manual pumping, because
Condensed water to be recycled in steam condensate tank substantially needs or so half an hour to hour that can just fill water pot, so existing
Field just must specially arrange people's start and stop water pump to draw water, and can also neglect sometimes because of personnel and forget to draw water and cause water pot
Full water spilling water and flood workshop.
2. the pumping system of electrolysis unit water system steam condensate tank is designed as pump variable frequency control and is carried out using PLC
It automatically controls, but frequency converter and PLC often break down, and after a failure since it controls program relative complex, repair
Personnel are larger to frequency converter and PLC maintenance difficulties, thus during use high failure rate and maintenance difficulty it is larger be two maximums
The shortcomings that.
The content of the invention
The purpose of this utility model is to provide a kind of hand auto-controlled water-pumping systems of steam condensate, solve existing
In place of the pumping system above shortcomings of steam condensate tank.
In order to achieve the above object, the technical solution adopted in the utility model is：
The hand auto-controlled water-pumping system of a kind of steam condensate provided by the utility model, including main pump M1, stand-by pump
M2, major loop, hand/automatic control loop and high/low liquid level gauge signal control loop, wherein, major loop is to main pump M1 and spare
It pumps M2 and power supply is provided, hand/automatic control loop is used to control manual start and stop or the automatic start-stop of main pump M1/ stand-by pumps M2；It is high/low
Limit the water signal of condensed water in liquid level gauge signal control loop acquisition steam condensate cistern, control hand/automatically control back
Road controls main pump M1/ stand-by pump M2 start and stop.
Preferably, major loop includes low pressure 380V three phase mains, circuit breaker Q F1, circuit breaker Q F2, contactor KM1, contact
Device KM2, electrothermal relay FR1 and electrothermal relay FR2, wherein, low pressure 380V three phase mains is divided into two-way, all the way successively with breaker
QF1, contactor KM1, electrothermal relay FR1 and main pump M1 series connection；Another way successively with circuit breaker Q F2, contactor KM2, hot relay
Device FR2 and stand-by pump M2 series connection.
Preferably, hand/automatic control loop, high/low liquid level gauge signal control loop and operation/stopping indication signal control
Circuit is powered by low pressure 220V power supplys, specifically：Low pressure 220V power supplys connect circuit breaker Q F3, the control firewire of circuit breaker Q F3
L connects one end of fuse FU, and the other end of fuse FU is divided into three tunnels, wherein, first via catcher/automatic control loop, second
Road connects high/low liquid level gauge signal control loop, and the 3rd tunnel connects operation/stopping indication signal control loop.
Preferably, hand/automatic control loop includes the manual control circuit of main pump M1, the manual of stand-by pump M2 controls back
The automatic control loop on road, the automatic control loop of main pump M1 and stand-by pump M2, wherein, the contactor KM1 coils in major loop
The normally-closed contact of start button SB2, stop button SB1 and electrothermal relay FR1 are connect successively, form controlling back manually for main pump M1
Road；The coil of contactor KM2 in major loop connects the normally closed of start button SB4, stop button SB3 and electrothermal relay FR2 successively
Contact forms the manual control circuit of stand-by pump M2；The normally opened of contact relay KA1 touches contactor KM1 coils successively in major loop
The normally-closed contact of point, the normally-closed contact of relay KA2 and electrothermal relay FR1 forms the automatic control loop of main pump M1；Major loop
In contactor KM2 the coils normally opened contact of contact relay KA1, the normally-closed contact of relay KA2 and electrothermal relay FR2 successively
Normally-closed contact forms the automatic control loop of stand-by pump M2.
Preferably, be provided between the second tunnel of fuse FU and high/low liquid level gauge signal control loop circuit breaker Q F4 and
Transformer BF is controlled, one end of control transformer BF is divided into two-way, connects high limit liquid level gauge normally opened contact KA3 and relay all the way
KA1 coils；Another way meets lower bound liquid level gauge normally opened contact KA4 and relay KA1 coils.
Preferably, high/low limit liquid level gauge is using magnetic double level gauge；Transformer BF is controlled using exchange 36V voltages.
Preferably, operation/stopping indication signal control loop is further included, operation/stopping indication signal control loop includes
Four tunnels are respectively the contactor KM1 normally opened contacts in major loop and run indicator HL1 series connection；Contactor KM1 in major loop
Normally-closed contact and the HL2 series connection of stopping indicator light；Contactor KM2 normally opened contacts and run indicator HL3 series connection in major loop；It is main
Contactor KM2 normally-closed contacts and the HL4 series connection of stopping indicator light in circuit.
Compared with prior art, the beneficial effects of the utility model are：
A kind of hand auto-controlled water-pumping system of steam condensate provided by the utility model, passes through high/low limit liquid first
The water signal of condensed water in the meter signal control loop acquisition steam condensate cistern of position, and then control hand/automatically control back
Road controls main pump M1/ stand-by pump M2 start and stop.The system controls accurate, easy to maintain, at low cost, stable and reliable operation, easily ties up
The advantages that repairing is particularly suitable for the use of drawing water of chemical enterprise public water utilities steam condensate water；Meanwhile controlled compared with PLC,
It has at low cost, stable, and electric control loop is simple, the advantages that facilitating trouble shoot.
Further, when liquid level signal acquisition is using exchange 36V safe voltages, dropout or mistake, can not stop
Electric-examination is repaiied, and is not only facilitated but also safe.
Further, two water pumps can switch use, during a failure, it is only necessary to can after its major loop is had a power failure
It is overhauled, is not influenced the normal use of another water pump.
Further, two water pumps, which manually and automatically can arbitrarily switch, is controlled, can after automatic control system failure
It is drawn water with switching to manual mode, does not influence normally to use.
Further, the operating status of water pump can intuitively be seen very much by increasing operation/stopping indication signal control loop.
Description of the drawings
Fig. 1 is pumping system principle schematic.
Specific embodiment
Below in conjunction with the accompanying drawings, the utility model is further described.
As shown in Figure 1, a kind of hand auto-controlled water-pumping system of steam condensate provided by the utility model, including main pump
M1, stand-by pump M2, major loop, hand/automatic control loop, high/low liquid level gauge signal control loop and operation/stopping indication signal
Control loop；Wherein, major loop provides power supply to main pump M1 and stand-by pump M2, and hand/automatic control loop is used to control main pump M1
Or manual start and stop or the automatic start-stop of stand-by pump M2；High/low limit liquid level gauge signal control loop stores for monitoring steam condensate
The water of condensed water in pond, and then control automatic control loop start and stop suction pump；Operation/stopping indication signal circuit is used to refer to
Show the operating status of suction pump.
Wherein, major loop includes low pressure 380V three phase mains, circuit breaker Q F1, circuit breaker Q F2, contactor KM1, contactor
KM2, electrothermal relay FR1 and electrothermal relay FR2, wherein, low pressure 380V three phase mains is divided into two-way, all the way successively with breaker
QF1, contactor KM1, electrothermal relay FR1 and main pump M1 series connection；Another way successively with circuit breaker Q F2, contactor KM2, hot relay
Device FR2 and stand-by pump M2 series connection.
Hand/automatic control loop, high/low liquid level gauge signal control loop and operation/stopping indication signal control loop are equal
It is powered by low pressure 220V power supplys, specifically：Low pressure 220V power supplys meet circuit breaker Q F3, and the control firewire L of circuit breaker Q F3 connects molten
One end of disconnected device FU, the other end of fuse FU are divided into three tunnels, wherein, first via catcher/automatic control loop, the second tunnel connects
High/low liquid level gauge signal control loop, the 3rd tunnel connect operation/stopping indication signal control loop.
Hand/automatic control loop includes the manual control circuit of main pump M1, the manual control circuit of stand-by pump M2, main pump M1
Automatic control loop and stand-by pump M2 automatic control loop, wherein, the contactor KM1 coils in major loop connect startup successively
The normally-closed contact of button SB2, stop button SB1 and electrothermal relay FR1 form the manual control circuit of main pump M1；
The coil of contactor KM2 in major loop connects start button SB4, stop button SB3 and electrothermal relay FR2's successively
Normally-closed contact forms the manual control circuit of stand-by pump M2.
In major loop contactor KM1 coils successively the normally opened contact of contact relay KA1, relay KA2 normally-closed contact and
The normally-closed contact of electrothermal relay FR1 forms the automatic control loop of main pump M1；
Contactor KM2 coils in the major loop normally opened contact of contact relay KA1, the normally-closed contact of relay KA2 successively
With the normally-closed contact of electrothermal relay FR2, the automatic control loop of composition stand-by pump M2.
Circuit breaker Q F4 is provided between the second tunnel of fuse FU and high/low liquid level gauge signal control loop and control becomes
Depressor BF, one end of control transformer BF are divided into two-way, connect high limit liquid level gauge normally opened contact KA3 and relay KA1 coils all the way；
Another way meets lower bound liquid level gauge normally opened contact KA4 and relay KA2 coils.
High/low limit liquid level gauge is using magnetic double level gauge；Transformer BF is controlled using exchange 36V voltages
Operation/stopping indication signal control loop includes four tunnels, is respectively contactor KM1 normally opened contacts and run indicator
HL1 connects；Contactor KM1 normally-closed contacts and the HL2 series connection of stopping indicator light；Contactor KM2 normally opened contacts and run indicator HL3
Series connection；Contactor KM2 normally-closed contacts and the HL4 series connection of stopping indicator light.
The hand Automatic Control Theory of the system:
The system is drawn water using two water pumps of the using and the reserved, and selection shows condensed water liquid level using magnetic double level gauge
And startup and the stop signal of high and low liquid level are provided for electrical control, and exchange 36V safety using transformer pressure-reducing is controlled to use
Voltage completes the gatherer process of high and low liquid level signal, and the high and low liquid level normally opened contact of magnetic double level gauge controls centre respectively
Relay KA1, KA2, when high liquid level, relay KA1 coils are attracted, and start water pump using the normally opened contact of relay KA1；
When low liquid level, relay KA2 coils are attracted, and are stopped water pump using the normally-closed contact of relay KA2, are just realized high liquid level
Shi Qidong pumping for water pump, stops the automatic control process of water pump during low liquid level, and passes through hand/automatic change-over and can select to control
Mode processed.
Claims (7)
1. a kind of hand auto-controlled water-pumping system of steam condensate, it is characterised in that：Including main pump M1, stand-by pump M2, lead back
Road, hand/automatic control loop and high/low liquid level gauge signal control loop, wherein, major loop is provided to main pump M1 and stand-by pump M2
Power supply, hand/automatic control loop are used to control manual start and stop or the automatic start-stop of main pump M1/ stand-by pumps M2；High/low limit liquid level gauge
The water signal of condensed water in signal control loop acquisition steam condensate cistern, control hand/automatic control loop control master
Pump M1/ stand-by pump M2 start and stop.
2. a kind of hand auto-controlled water-pumping system of steam condensate according to claim 1, it is characterised in that：Major loop
Including low pressure 380V three phase mains, circuit breaker Q F1, circuit breaker Q F2, contactor KM1, contactor KM2, electrothermal relay FR1 and heat
Relay FR2, wherein, low pressure 380V three phase mains is divided into two-way, all the way successively with circuit breaker Q F1, contactor KM1, hot relay
Device FR1 and main pump M1 series connection；Another way is connected successively with circuit breaker Q F2, contactor KM2, electrothermal relay FR2 and stand-by pump M2.
3. a kind of hand auto-controlled water-pumping system of steam condensate according to claim 2, it is characterised in that：Hand/from
Dynamic control loop, high/low liquid level gauge signal control loop and operation/stopping indication signal control loop pass through low pressure 220V electricity
Source powers, specifically：Low pressure 220V power supplys meet circuit breaker Q F3, and the control firewire L of circuit breaker Q F3 connects one end of fuse FU, melt
The other end of disconnected device FU is divided into three tunnels, wherein, first via catcher/automatic control loop, the second tunnel connects high/low liquid level gauge signal control
Circuit processed, the 3rd tunnel connect operation/stopping indication signal control loop.
4. a kind of hand auto-controlled water-pumping system of steam condensate according to claim 3, it is characterised in that：Hand/from
Dynamic control loop includes the manual control circuit of main pump M1, the manual control circuit of stand-by pump M2, main pump M1 and automatically controls back
Road and the automatic control loop of stand-by pump M2, wherein, the contactor KM1 coils in major loop meet start button SB2, stop successively
The normally-closed contact of button SB1 and electrothermal relay FR1 form the manual control circuit of main pump M1；Contactor KM2's in major loop
Coil connects the normally-closed contact of start button SB4, stop button SB3 and electrothermal relay FR2 successively, forms the manual control of stand-by pump M2
Circuit processed；Contactor KM1 the coils normally opened contact of contact relay KA1, the normally-closed contact of relay KA2 and heat successively in major loop
The normally-closed contact of relay FR1 forms the automatic control loop of main pump M1；Contactor KM2 coils in major loop are succeeded successively
The normally-closed contact of the normally opened contact of electric appliance KA1, the normally-closed contact of relay KA2 and electrothermal relay FR2 forms stand-by pump M2 oneself
Dynamic control loop.
5. a kind of hand auto-controlled water-pumping system of steam condensate according to claim 3, it is characterised in that：Fuse
Circuit breaker Q F4 and control transformer BF are provided between the second tunnel of FU and high/low liquid level gauge signal control loop, controls transformation
One end of device BF is divided into two-way, connects high limit liquid level gauge normally opened contact KA3 and relay KA1 coils all the way；Another way connects lower bound liquid
Position meter normally opened contact KA4 and relay KA1 coils.
6. a kind of hand auto-controlled water-pumping system of steam condensate according to claim 5, it is characterised in that：It is high/low
Liquid level gauge is limited using magnetic double level gauge；Transformer BF is controlled using exchange 36V voltages.
7. according to a kind of hand auto-controlled water-pumping system of steam condensate of claim 2-6 any one of them, feature exists
In：Further include operation/stopping indication signal control loop, operation/stopping indication signal control loop includes four tunnels, respectively based on
Contactor KM1 normally opened contacts and run indicator HL1 series connection in circuit；Contactor KM1 normally-closed contacts in major loop and stop
Only indicator light HL2 connects；Contactor KM2 normally opened contacts and run indicator HL3 series connection in major loop；Contact in major loop
Device KM2 normally-closed contacts and the HL4 series connection of stopping indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358799.7U CN207454233U (en) | 2017-10-20 | 2017-10-20 | A kind of hand auto-controlled water-pumping system of steam condensate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358799.7U CN207454233U (en) | 2017-10-20 | 2017-10-20 | A kind of hand auto-controlled water-pumping system of steam condensate |
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| CN207454233U true CN207454233U (en) | 2018-06-05 |
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| CN201721358799.7U Active CN207454233U (en) | 2017-10-20 | 2017-10-20 | A kind of hand auto-controlled water-pumping system of steam condensate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906749A (en) * | 2018-09-12 | 2018-11-30 | 马鞍山钢铁股份有限公司 | A kind of control method of descaling of steel stock machine high-pressure hydraulic pump |
| CN110145460A (en) * | 2019-06-03 | 2019-08-20 | 国家电网有限公司 | A kind of double water pump rotation start-up and shut-down control circuit |
| CN112576476A (en) * | 2020-11-28 | 2021-03-30 | 安徽金禾实业股份有限公司 | Oil pressure is low from opening high warning pump station controlling means |
| CN116020179A (en) * | 2023-02-14 | 2023-04-28 | 青岛大任水务有限公司 | Automatic cleaning equipment and method for inclined tube of high-density sedimentation tank |
-
2017
- 2017-10-20 CN CN201721358799.7U patent/CN207454233U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906749A (en) * | 2018-09-12 | 2018-11-30 | 马鞍山钢铁股份有限公司 | A kind of control method of descaling of steel stock machine high-pressure hydraulic pump |
| CN110145460A (en) * | 2019-06-03 | 2019-08-20 | 国家电网有限公司 | A kind of double water pump rotation start-up and shut-down control circuit |
| CN112576476A (en) * | 2020-11-28 | 2021-03-30 | 安徽金禾实业股份有限公司 | Oil pressure is low from opening high warning pump station controlling means |
| CN112576476B (en) * | 2020-11-28 | 2023-05-26 | 安徽金禾实业股份有限公司 | Oil pressure is low from opening high alarm pump station controlling means |
| CN116020179A (en) * | 2023-02-14 | 2023-04-28 | 青岛大任水务有限公司 | Automatic cleaning equipment and method for inclined tube of high-density sedimentation tank |
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