CN106679447A - Cooling tower control system - Google Patents
Cooling tower control system Download PDFInfo
- Publication number
- CN106679447A CN106679447A CN201510766386.1A CN201510766386A CN106679447A CN 106679447 A CN106679447 A CN 106679447A CN 201510766386 A CN201510766386 A CN 201510766386A CN 106679447 A CN106679447 A CN 106679447A
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- Prior art keywords
- water
- tank
- vacuum
- cooling tower
- control system
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Abstract
The invention provides a cooling tower control system which comprises a water tank, a water pump connected with the water tank through a pipe, a vacuum pump connected to one end of the water pump, a vacuum tank connected to the end, far away from the water pump, of the vacuum tank and cooling units connected with the vacuum tank; and the vacuum tank is at least connected with one cooling unit through a pipe, each cooling unit comprises a cooling tower, a heat exchanger arranged on the outer side of the cooling tower, a buffer tank arranged above the cooling tower and a second water inlet pipe connected to the lower portion of the heat exchanger, wherein the buffer tank is communicated with the vacuum pump and is further communicated with the highest position of the heat exchanger, the vacuum pump can adjust the vacuum degree of the vacuum tank and further adjust the vacuum degree of the buffer tank, and therefore water in the second water inlet pipe is pumped into the buffer tank through the heat exchanger. By means of the cooling tower control system, whether the cooling towers need to be switched to the mist eliminating state or not can be automatically judged according to season and temperature change conditions, continuous work of an air door motor is avoided, and energy consumption is reduced.
Description
Technical field
The present invention relates to the automation control system of cooling tower, especially a kind of control system of cooling tower.
Background technology
Cooling tower is widely used in large industrial enterprise, particularly when cooling tower runs into cold season,
Usually a heat exchanger is set up in the both sides of cooling tower, the cooling water of system sparge pipe passes through heat exchanger, so
Under the damper motor effect for arranging at heat exchanger afterwards, the cold air outside cooling tower is blown to through heat exchanger
In tower, so as to mix with the damp and hot saturated air risen from tower bottom, formed unsaturated air, eliminate or
Mitigate the generation of white haze.
But in the middle of actual operation and running, heat exchanger often located at the higher position of cooling tower, is changed
Water channel bending in hot device and long, if it is desired to recirculated water be all introduced into heat exchanger enter back into Jing after heat exchange it is cold
But in the water distribution system of tower, this just proposes higher requirement to the lift of high-pressure hydraulic pump, even changes
The water pump of eligible lift is fed the water in heat exchanger, can not be according to cooling tower ambient temperature come in real time
The keying of damper motor is voluntarily controlled, water pump cost is on the one hand increased, has on the other hand also been lost substantial amounts of
Electric energy.
The content of the invention
The technical problem to be solved is：For cooling tower can not basis in order to overcome prior art
Ambient temperature carries out the deficiency that remote auto switches fog dispersal state, now provides a kind of control system of cooling tower.
The present invention solves its technical problem technical scheme to be taken：A kind of control system of cooling tower,
The water pump connect including water tank and cistern tube, the vacuum pump for being connected to water pump one end, be connected to vacuum pump away from
The vacuum tank of water pump one end, and with the tank connected cooling unit of vacuum, the vacuum tank to education and correction for juvenile offenders connects one
Cooling unit, described each cooling unit includes cooling tower, the heat exchanger being arranged on the outside of cooling tower, sets
The surge tank being placed in above cooling tower and the water inlet pipe of lower section second for being connected to heat exchanger, the surge tank connection
Vacuum tank, surge tank is also connected with the highest point of heat exchanger, and vacuum pump can adjust the vacuum of vacuum tank,
And then the vacuum of regulation surge tank, so as to the water in the second water inlet pipe is pumped to surge tank through heat exchanger
It is interior.
Further, the surge tank top is equipped with one and controls the pneumatic operated valve that the surge tank is opened and closed.
Further, second water inlet pipe is provided with the second electric butterfly valve, and second electric butterfly valve is controllable
Controlling the water circulation rises from the second water inlet pipe.
Further, steam-water separator is also included in the control system, the steam-water separator pipe is connected on water pump
And vacuum pump between, the water side of the steam-water separator pipe water receiving case and vacuum pump respectively.
Further, the water outlet end pipe water receiving case of the vacuum pump, vacuum pump discharges end pipe connects steam-water separator.
Further, the vacuum tank is also communicated with water tank, the water tank also joining water box.
Further, the steam-water separator is provided with first liquid level gauge.
Further, surge tank is provided with second liquid level gauge, and vacuum tank is provided with vacuum meter.
Further, the quantity of the vacuum pump has after two and parallel connection and is connected with vacuum tank.
Further, the quantity of the cooling unit is to be connected with vacuum tank after four and parallel connection.
The invention has the beneficial effects as follows：A kind of control system of cooling tower of the present invention, is taken out by heat exchanger
Vacuum, so as to produce negative pressure, by the water inspiration heat exchanger in the second water inlet pipe, overcomes because of high-pressure hydraulic pump
Lift is not enough and cause the difficult difficult problem of pump water；Additionally, a kind of control system of cooling tower of the present invention, can
Whether to need to be switched to fog dispersal state according to season, temperature variations automatic decision cooling tower, so as to keep away
Exempt from the non-stop run of damper motor, reduce energy consumption.
Description of the drawings
With reference to the accompanying drawings and examples the invention will be further described.
Fig. 1 is a kind of structural representation of the control system of cooling tower of the present invention；
Fig. 2 is the structural representation of the cooling unit in a kind of control system of the cooling tower shown in Fig. 1.
In figure：10th, water tank, 20, water pump, 30, vacuum pump, 40, vacuum tank, 41, vacuum meter, 50,
Cooling unit, 51, cooling tower, 511, heat exchanger, 512, damper motor, 52, surge tank, 521, gas
Dynamic valve, 522, second liquid level gauge, the 53, first electro-magnetic valve, the 54, second electro-magnetic valve, 55, first enters
Water pipe, the 56, second water inlet pipe, 60, steam-water separator, 61, first liquid level gauge, 70, water tank.
Specific embodiment
Presently in connection with accompanying drawing, the present invention is described in detail.This figure is simplified schematic diagram, only with signal side
The basic structure of the formula explanation present invention, therefore it only shows the composition relevant with the present invention.
Refer to shown in Fig. 1, the present invention provide a kind of cooling tower control system, including water tank 10 and
Water pump 20 that the pipe of water tank 10 connects, the vacuum pump 30 for being connected to the one end of water pump 20, to be connected to vacuum pump 30 remote
From the vacuum tank 40 of the one end of water pump 20, and the cooling unit 50 being connected with vacuum tank 40.In order to quick complete
Into evacuation work, in the present embodiment, the quantity of vacuum pump 30 is two and in parallel, two vacuum pumps 30
Pumping end is converged and is connected to one end of vacuum tank 40 after connection by pipeline, can be with order to meet the control system
Multiple cooling tower fog dispersals are controlled simultaneously, and in the present embodiment, the quantity of cooling unit 50 is four.
Specifically, refer to shown in Fig. 2, each above-mentioned cooling unit 50 includes cooling tower 51, arranges
Heat exchanger 511 in the outside of cooling tower 51, it is arranged at the surge tank 52 of the top of cooling tower 51 and is connected to and change
Second water inlet pipe of lower section 56 of hot device 511, the surge tank 52 connection vacuum tank 40, surge tank 52 also with
The highest point connection of heat exchanger 511, vacuum pump 30 can adjust the vacuum of vacuum tank 40, and then adjust
The vacuum of surge tank 52, so as to the water in the second water inlet pipe 56 is pumped to buffering through heat exchanger 511
In tank 40.Described each top of surge tank 52 is equipped with one and controls the pneumatic operated valve that the surge tank 52 is opened and closed
521。
Second water inlet pipe 56 is provided with the second electric butterfly valve 54, and second electric butterfly valve 54 can control
Water rises from the second water inlet pipe 56.
The top of described each surge tank 52 is equipped with one and can be used to change and shape is connected or disconnected with vacuum tank 40
The pneumatic operated valve 521 of state, is additionally provided with a second liquid level gauge 522 on surge tank 52, detect in surge tank 52
Height of water level exceed setting value when, pneumatic operated valve 521 may turn off, and surge tank 52 disconnects with vacuum tank 40
Connection.
Refer to shown in Fig. 1, steam-water separator 60, the steam-water separator 60 are also included in the control system
Pipe is connected between water pump 20 and vacuum pump 30, the water side of the steam-water separator 60 pipe water receiving case 10 respectively
With the water inlet end of vacuum pump 30, steam-water separator 60 is provided with a first liquid level gauge 61, works as steam-water separator
When water level in 60 exceedes the water level value of setting, the part for exceeding then can be flowed in water tank 10 by pipeline.
The water side of the vacuum pump 30 also pipe water receiving case 10, the exhaust end of vacuum pump 30 is connected to by pipeline
On steam-water separator 60, steam-water separator 60 can isolate the moisture in the expellant gas of vacuum pump 30,
Flow again in water tank.
The vacuum tank 40 is provided with a vacuum meter 41, and the lower section of vacuum tank 40 also pipe is connected to a water tank
70, another end pipe water receiving case 10 of the water tank 70, in vacuum, suction heat in vacuum tank 40
Air, has droplet and water tank 70 is flowed into from the inwall of vacuum tank 40 after cooling, be eventually returned to water tank 10
It is interior.
A PLC control cabinet (not shown), the PLC controls are also associated with the control system of the cooling tower
Cabinet is used to control the keying of water pump 20, pneumatic operated valve 521 and damper motor 512.
With reference to a kind of course of work of the control system of cooling tower of Fig. 1 and Fig. 2 explanation present invention：When
When ambient temperature is higher than setting value, now the first electro-magnetic valve 53 is opened, and the second electro-magnetic valve 54 is closed
Close, the sparge pipe that the water of water distribution system directly enters cooling tower 51 from the first water inlet pipe 55 sprays.
When ambient temperature is less than setting value, the first electro-magnetic valve 53 is closed, the second electro-magnetic valve 54
Open, PLC control cabinet opens water pump 20, start from water tank 10 to draw water, water is through steam-water separator 60
Enter in vacuum pump 30, when the water in vacuum pump 30 reaches unlocking condition, the evacuation of vacuum pump 30
Work just starts, and needs the pneumatic operated valve 521 in the cooling unit 50 of fog dispersal to open, now in vacuum action
Under, the water in system sparge pipe enters in heat exchanger 511 and rises to surge tank from the second water inlet pipe 56
In 52, when the water in heat exchanger 511 crosses the peak of heat exchanger 511 until reaching the setting of surge tank 52
During water level, now the pneumatic operated valve 521 of the top of surge tank 52 is closed, the air door electricity at heat exchanger 511
Machine 512 is opened, and outside air is blown in cooling tower 51 after heat exchanger 511 is heated, and realizes fog dispersal mesh
's.Similar, the course of work of the other three cooling unit 50 as previously discussed, is no longer repeated one by one here.
When each closing of pneumatic operated valve 521 in four cooling units 50 and the vacuum in vacuum tank 40
When reaching setting value, now water pump 20 automatically cuts off power supply, and vacuum pump 30 is out of service, completes whole system
The evacuation work of system.In the running of system, the water constantly flowing in heat exchanger 511, in water
Can be with some gas, as gas is cumulative, vacuum will be reduced, the water level in surge tank 52
Decline, now PLC control cabinet is received after the liquid level reduction signal of second liquid level gauge 522, controls pneumatic operated valve
521 open, and system can be again turned on repeating above-mentioned vacuum, until system vacuum reaches setting value.
A kind of control system of the cooling tower of the present invention, it is negative so as to produce by the evacuation of heat exchanger 511
Pressure, in the water inspiration heat exchanger 511 in the second water inlet pipe 56, will overcome because high-pressure hydraulic pump lift is not enough
The difficult problem for causing pump water difficult；Additionally, a kind of control system of cooling tower of the present invention, can according to season,
Whether temperature variations automatic decision cooling tower needs to be switched to fog dispersal state, so as to avoid damper motor
512 non-stop run, reduces energy consumption.
With the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, related work
Making personnel can carry out various change and modification in without departing from the scope of the present invention completely.This is sent out
Bright technical scope is not limited to the content in description, it is necessary to determine it according to right
Technical scope.
Claims (10)
1. a kind of control system of cooling tower, it is characterised in that：Including water tank (10) and water tank (10)
Water pump (20) that pipe connects, it is connected to the vacuum pump (30) of water pump (20) one end, is connected to vacuum pump (30)
Away from the vacuum tank (40) of water pump (20) one end, and the cooling unit (50) being connected with vacuum tank (40),
The vacuum tank (40) to education and correction for juvenile offenders connects a cooling unit (50), described each cooling unit (50) bag
Include cooling tower (51), the heat exchanger (511) being arranged on the outside of cooling tower (51), be arranged at cooling tower (51)
The surge tank (52) of top and the water inlet pipe of the lower section second (56) of heat exchanger (511) is connected to, it is described slow
Tank (52) connection vacuum tank (40) is rushed, surge tank (52) is also connected with the highest point of heat exchanger (511),
Vacuum pump (30) can adjust the vacuum of vacuum tank (40), and then adjust the vacuum of surge tank (52)
Degree, so as to the water in the second water inlet pipe (56) is pumped to surge tank (40) through heat exchanger (511).
2. a kind of control system of cooling tower as claimed in claim 1, it is characterised in that：The buffering
Tank (52) top is equipped with one and controls the pneumatic operated valve (521) that the surge tank (52) opens and closes.
3. a kind of control system of cooling tower as claimed in claim 1, it is characterised in that：Described second enters
Water pipe (56) is provided with the second electric butterfly valve (54), and the controllable controlling the water circulation of second electric butterfly valve (54) is from
Rise in two water inlet pipes (56).
4. a kind of control system of cooling tower as claimed in claim 1, it is characterised in that：The control system
In also include steam-water separator (60), steam-water separator (60) pipe is connected on water pump (20) and vacuum pump
(30) between, the water side of the steam-water separator (60) pipe water receiving case (10) and vacuum pump (30) respectively.
5. a kind of control system of cooling tower as claimed in claim 4, it is characterised in that：The vacuum pump
(30) water outlet end pipe water receiving case (10), vacuum pump (30) aerofluxuss end pipe connects steam-water separator (60).
6. a kind of control system of cooling tower as claimed in claim 1, it is characterised in that：The vacuum tank
(40) water tank (70), the water tank (70) joining water box (10) are also communicated with.
7. a kind of control system of cooling tower as claimed in claim 4, it is characterised in that：The soda pop point
First liquid level gauge (61) is provided with from device (60).
8. a kind of control system of cooling tower as claimed in claim 1, it is characterised in that：The surge tank
(52) second liquid level gauge (522) is provided with, the vacuum tank (40) is provided with vacuum meter (41).
9. a kind of control system of cooling tower as claimed in claim 1, it is characterised in that：The vacuum pump
(30) quantity has after two and parallel connection and is connected with vacuum tank (40).
10. a kind of control system of cooling tower as claimed in claim 1, it is characterised in that：The cooling
The quantity of unit (50) is to be connected with vacuum tank (40) after four and parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766386.1A CN106679447A (en) | 2015-11-10 | 2015-11-10 | Cooling tower control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766386.1A CN106679447A (en) | 2015-11-10 | 2015-11-10 | Cooling tower control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106679447A true CN106679447A (en) | 2017-05-17 |
Family
ID=58865622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510766386.1A Pending CN106679447A (en) | 2015-11-10 | 2015-11-10 | Cooling tower control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106679447A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469186A (en) * | 2018-04-19 | 2018-08-31 | 常州市第二人民医院 | Cool down bucket and the cooling system with it |
| CN109022719A (en) * | 2018-10-12 | 2018-12-18 | 中铁隆昌铁路器材有限公司 | A kind of fluid cooling device and system |
| CN110307148A (en) * | 2019-06-27 | 2019-10-08 | 唐钢美锦（唐山）煤化工有限公司 | A kind of coking desulfurization systems pumps cooling water emergency treatment device and technique |
| CN113808765A (en) * | 2021-09-07 | 2021-12-17 | 长江勘测规划设计研究有限责任公司 | Dead steam air cooling system of steam turbine of underground nuclear power station and using method thereof |
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| JPS57134689A (en) * | 1981-02-10 | 1982-08-19 | Utagawa Kogyo Kk | Water circulating method of cooling facilities and device thereof |
| EP0953814A2 (en) * | 1998-04-28 | 1999-11-03 | GEA Energietecknik GmbH | Hybrid cooling plant |
| CN103604173A (en) * | 2013-11-21 | 2014-02-26 | 新疆绿色使者干空气能源有限公司 | Composite cooling device capable of being operated under multiple weather conditions |
| CN104501618A (en) * | 2014-12-22 | 2015-04-08 | 江苏海鸥冷却塔股份有限公司 | Water-saving and antifreezing cooling tower |
| CN204301555U (en) * | 2014-09-11 | 2015-04-29 | 华北水利水电大学 | One utilizes industrial exhaust heat condensed water demist cooling tower |
| CN104567455A (en) * | 2015-02-05 | 2015-04-29 | 李金鹏 | Composite sleeve opposite direction steam inlet condensation cooling tower |
| CN104864765A (en) * | 2015-04-08 | 2015-08-26 | 南京阿克赛斯科技有限公司 | Vacuum water-feeding system of cooling tower |
| CN105277010A (en) * | 2015-05-08 | 2016-01-27 | 江苏海鸥冷却塔股份有限公司 | Dry-wet type energy-saving cooling tower |
| CN205192282U (en) * | 2015-11-10 | 2016-04-27 | 江苏海鸥冷却塔股份有限公司 | Control system of cooling tower |
-
2015
- 2015-11-10 CN CN201510766386.1A patent/CN106679447A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57134689A (en) * | 1981-02-10 | 1982-08-19 | Utagawa Kogyo Kk | Water circulating method of cooling facilities and device thereof |
| EP0953814A2 (en) * | 1998-04-28 | 1999-11-03 | GEA Energietecknik GmbH | Hybrid cooling plant |
| CN103604173A (en) * | 2013-11-21 | 2014-02-26 | 新疆绿色使者干空气能源有限公司 | Composite cooling device capable of being operated under multiple weather conditions |
| CN204301555U (en) * | 2014-09-11 | 2015-04-29 | 华北水利水电大学 | One utilizes industrial exhaust heat condensed water demist cooling tower |
| CN104501618A (en) * | 2014-12-22 | 2015-04-08 | 江苏海鸥冷却塔股份有限公司 | Water-saving and antifreezing cooling tower |
| CN104567455A (en) * | 2015-02-05 | 2015-04-29 | 李金鹏 | Composite sleeve opposite direction steam inlet condensation cooling tower |
| CN104864765A (en) * | 2015-04-08 | 2015-08-26 | 南京阿克赛斯科技有限公司 | Vacuum water-feeding system of cooling tower |
| CN105277010A (en) * | 2015-05-08 | 2016-01-27 | 江苏海鸥冷却塔股份有限公司 | Dry-wet type energy-saving cooling tower |
| CN205192282U (en) * | 2015-11-10 | 2016-04-27 | 江苏海鸥冷却塔股份有限公司 | Control system of cooling tower |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469186A (en) * | 2018-04-19 | 2018-08-31 | 常州市第二人民医院 | Cool down bucket and the cooling system with it |
| CN109022719A (en) * | 2018-10-12 | 2018-12-18 | 中铁隆昌铁路器材有限公司 | A kind of fluid cooling device and system |
| CN110307148A (en) * | 2019-06-27 | 2019-10-08 | 唐钢美锦（唐山）煤化工有限公司 | A kind of coking desulfurization systems pumps cooling water emergency treatment device and technique |
| CN113808765A (en) * | 2021-09-07 | 2021-12-17 | 长江勘测规划设计研究有限责任公司 | Dead steam air cooling system of steam turbine of underground nuclear power station and using method thereof |
| CN113808765B (en) * | 2021-09-07 | 2024-03-22 | 长江勘测规划设计研究有限责任公司 | Steam exhaust air cooling system of steam turbine of underground nuclear power station and application method of steam exhaust air cooling system |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |
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| RJ01 | Rejection of invention patent application after publication |