CN205192282U - Control system of cooling tower - Google Patents
Control system of cooling tower Download PDFInfo
- Publication number
- CN205192282U CN205192282U CN201520892465.2U CN201520892465U CN205192282U CN 205192282 U CN205192282 U CN 205192282U CN 201520892465 U CN201520892465 U CN 201520892465U CN 205192282 U CN205192282 U CN 205192282U
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- water
- cooling tower
- tank
- control system
- vacuum
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Abstract
The utility model provides a control system of cooling tower, including the water tank, with the water pump of water tank pipe connector, be connected at the vacuum pump of water pump one end, water pump one end was kept away from in the connection at the vacuum pump real empty can to reach the cooling unit who is connected with real empty can, real cooling unit of the at least pipe connector of empty can, each cooling unit includes the cooling tower, sets up in the heat exchanger outside the cooling tower, sets up the buffer tank above the cooling tower and connect in the below of heat exchanger second inlet tube, the real empty can of buffer tank intercommunication, buffer tank still with the highest point intercommunication of heat exchanger, real empty can's vacuum can be adjusted to the vacuum pump, and then adjusts the vacuum of buffer tank to pump the water in the second inlet tube to the buffer tank in through the heat exchanger. The utility model discloses a control system of cooling tower can judge whether needs switch to the fog dispersal state cooling tower according to season, the temperature variation condition automatically to avoid damper motor's uninterrupted duty, reduced the energy consumption.
Description
Technical field
The utility model 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 enters cold season and runs, generally set up a heat exchanger in the both sides of cooling tower, the cooling water of system sparge pipe passes through heat exchanger, then, under the damper motor effect of heat exchanger place setting, the cold air of cooling tower outside is blown in tower through heat exchanger, thus mixes with the damp and hot saturated air risen from tower bottom, form unsaturated air, eliminate or alleviate the generation of white mist.
But in the middle of the operation and running of reality, the higher position of cooling tower is often located at by heat exchanger, water channel in heat exchanger is bending and long, if think that recirculated water all enters into the water distribution system that heat exchanger enters into cooling tower again after heat exchange, this just proposes higher requirement to water under high pressure pump lift, even if water is sent in heat exchanger by the water pump having changed eligible lift, the keying controlling damper motor in real time voluntarily can not be carried out according to cooling tower ambient temperature, on the one hand add water pump cost, on the other hand the also a large amount of electric energy of loss.
Utility model content
Technical problem to be solved in the utility model is: can not carry out according to ambient temperature the deficiency that remote auto switches fog dispersal state to overcome in prior art for cooling tower, now providing a kind of control system of cooling tower.
The utility model solves the technical scheme that its technical problem will adopt: a kind of control system of cooling tower, comprise water tank, the water pump connect with cistern tube, be connected to the vavuum pump of water pump one end, be connected to the vacuum tank of vavuum pump away from water pump one end, and cooling unit tank connected with vacuum, described vacuum tank to education and correction for juvenile offenders connects a cooling unit, each cooling unit described comprises cooling tower, be arranged at the heat exchanger outside cooling tower, be arranged at the surge tank above cooling tower and be connected to below second water inlet pipe of heat exchanger, described surge tank is communicated with vacuum tank, surge tank is also communicated with the highest point of heat exchanger, vavuum pump can regulate the vacuum of vacuum tank, and then regulate the vacuum of surge tank, thus the water in the second water inlet pipe is pumped in surge tank through heat exchanger.
Further, a pneumatic operated valve controlling described surge tank and open and close is equipped with above described surge tank.
Further, described second water inlet pipe is provided with the second electric butterfly valve, and described second electric butterfly valve can control water and rise in the second water inlet pipe.
Further, also comprise steam-water separator in this control system, described steam-water separator pipe is connected between water pump and vavuum pump, and the water side of described steam-water separator is divided no matter water receiving case and vavuum pump.
Further, the water side pipe water receiving case of described vavuum pump, vacuum pump discharges end pipe connects steam-water separator.
Further, described vacuum tank is also communicated with water tank, described water tank also joining water box.
Further, described steam-water separator is provided with the first liquid level gauge.
Further, surge tank is provided with the second liquid level gauge, and vacuum tank is provided with vacuum meter.
Further, the quantity of described vavuum pump has two and is connected with vacuum tank after parallel connection.
Further, the quantity of described cooling unit is four and is connected with vacuum tank after parallel connection.
The beneficial effects of the utility model are: the control system of a kind of cooling tower of the present utility model, vacuumized by heat exchanger, thus generation negative pressure, by the water inspiration heat exchanger in the second water inlet pipe, overcome the difficult problem causing pump water difficulty because high-pressure hydraulic pump lift is not enough; In addition, the control system of a kind of cooling tower of the present utility model, the need of being switched to fog dispersal state, thus can avoid the non-stop run of damper motor according to season, temperature variations automatic decision cooling tower, reducing energy consumption.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structural representation of the control system of a kind of cooling tower of the present utility model;
Fig. 2 is the structural representation of the cooling unit in the control system of a kind of cooling tower shown in Fig. 1.
In figure: 10, water tank, 20, water pump, 30, vavuum pump, 40, vacuum tank, 41, vacuum meter, 50, cooling unit, 51, cooling tower, 511, heat exchanger, 512, damper motor, 52, surge tank, 521, pneumatic operated valve, the 522, second liquid level gauge, the 53, first electro-magnetic valve, 54, the second electro-magnetic valve, the 55, first water inlet pipe, the 56, second water inlet pipe, 60, steam-water separator, the 61, first liquid level gauge, 70, water tank.
Detailed description of the invention
By reference to the accompanying drawings the utility model is described in detail now.This figure is the schematic diagram simplified, and only basic structure of the present utility model is described in a schematic way, therefore it only shows the formation relevant with the utility model.
Please refer to shown in Fig. 1, the control system of a kind of cooling tower that the utility model provides, the water pump 20, the vavuum pump 30 being connected to water pump 20 one end that comprise water tank 10, connect with water tank 10 pipe, be connected to the vacuum tank 40 of vavuum pump 30 away from water pump 20 one end, and the cooling unit 50 be connected with vacuum tank 40.In order to complete the work of vacuumizing fast, in the present embodiment, the quantity of vavuum pump 30 is two and in parallel, two vavuum pumps 30 are bled and to be connected to one end of vacuum tank 40 after end converges connection by pipeline, the fog dispersal of multiple cooling tower can be controlled to meet this control system simultaneously, in the present embodiment, the quantity of cooling unit 50 is four.
Concrete, please refer to shown in Fig. 2, above-mentioned each cooling unit 50 includes cooling tower 51, be arranged at heat exchanger 511 outside cooling tower 51, be arranged at the surge tank 52 above cooling tower 51 and be connected to below second water inlet pipe 56 of heat exchanger 511, described surge tank 52 is communicated with vacuum tank 40, surge tank 52 is also communicated with the highest point of heat exchanger 511, vavuum pump 30 can regulate the vacuum of vacuum tank 40, and then regulate the vacuum of surge tank 52, thus the water in the second water inlet pipe 56 is pumped in surge tank 40 through heat exchanger 511.A pneumatic operated valve 521 controlling described surge tank 52 and open and close is equipped with above described each surge tank 52.
Described second water inlet pipe 56 is provided with the second electric butterfly valve 54, and described second electric butterfly valve 54 can control water and rise in the second water inlet pipe 56.
Be equipped with one above described each surge tank 52 to can be used for changing and to be communicated with vacuum tank 40 or the pneumatic operated valve 521 of off-state, surge tank 52 is also provided with second liquid level gauge 522, when the height of water level detecting in surge tank 52 exceeds setting value, pneumatic operated valve 521 will cut out, and surge tank 52 disconnects with vacuum tank 40 and being communicated with.
Please refer to shown in Fig. 1, steam-water separator 60 is also comprised in this control system, described steam-water separator 60 pipe is connected between water pump 20 and vavuum pump 30, the water side of described steam-water separator 60 is divided no matter water receiving case 10 and vavuum pump 30 water inlet end, steam-water separator 60 is provided with first liquid level gauge 61, when the water level in steam-water separator 60 exceedes the water level value of setting, the part exceeded then can be flowed in water tank 10 by pipeline.
The water side also pipe water receiving case 10 of described vavuum pump 30, vavuum pump 30 exhaust end is connected on steam-water separator 60 by pipeline, and steam-water separator 60 can isolate the moisture in the gas of vavuum pump 30 discharge, again flow in water tank.
Described vacuum tank 40 is provided with a vacuum meter 41, below vacuum tank 40, also pipe is connected to a water tank 70, the other end pipe water receiving case 10 of described water tank 70, in vacuum, hot-air is sucked in vacuum tank 40, have droplet after cooling and flow into water tank 70 from vacuum tank 40 inwall, finally get back in water tank 10.
Also be connected with a PLC control cabinet (not shown) in the control system of this cooling tower, described PLC control cabinet is for controlling the keying of water pump 20, pneumatic operated valve 521 and damper motor 512.
The course of work of the control system of a kind of cooling tower of the present utility model is described: when ambient temperature is higher than setting value below in conjunction with Fig. 1 and Fig. 2, now the first electro-magnetic valve 53 is opened, second electro-magnetic valve 54 is closed, and 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 lower than setting value, first electro-magnetic valve 53 is closed, second electro-magnetic valve 54 is opened, PLC control cabinet opens water pump 20, start to draw water in water tank 10, water enters in vavuum pump 30 through steam-water separator 60, when the water in vavuum pump 30 reaches unlocking condition, the work that vacuumizes of vavuum pump 30 just starts, the pneumatic operated valve 521 in the cooling unit 50 of fog dispersal is needed to open, now under vacuum, water in system sparge pipe to enter in heat exchanger 511 from the second water inlet pipe 56 and rises in surge tank 52, when the water in heat exchanger 511 crosses the peak of heat exchanger 511 until when arriving the designated water level of surge tank 52, pneumatic operated valve 521 now above this surge tank 52 cuts out, the damper motor 512 being in heat exchanger 511 place is opened, outside air is blown in cooling tower 51 after heat exchanger 511 is heated, realize fog dispersal object.Similar, the course of work of other three cooling units 50 as previously discussed, repeats here no longer one by one.
When each pneumatic operated valve 521 in four cooling units 50 cuts out and vacuum in vacuum tank 40 reaches setting value, now water pump 20 automatic cut-off power, vavuum pump 30 is out of service, and what complete whole system vacuumizes work.In the running of system, water constantly flows in heat exchanger 511, some gas can be with in water, along with gas is cumulative, vacuum will reduce, the water level decreasing in surge tank 52, after now PLC control cabinet receives the liquid level reduction signal of the second liquid level gauge 522, control pneumatic operated valve 521 to open, system again can be opened and be repeated above-mentioned vacuum, until system vacuum reaches setting value.
The control system of a kind of cooling tower of the present utility model, is vacuumized by heat exchanger 511, thus produces negative pressure, by the water inspiration heat exchanger 511 in the second water inlet pipe 56, overcomes the difficult problem causing pump water difficulty because high-pressure hydraulic pump lift is not enough; In addition, the control system of a kind of cooling tower of the present utility model, the need of being switched to fog dispersal state, thus can avoid the non-stop run of damper motor 512 according to season, temperature variations automatic decision cooling tower, reducing energy consumption.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff not departing from scope of the present utility model, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on description, must determine its technical scope according to right.
Claims (10)
1. the control system of a cooling tower, it is characterized in that: comprise water tank (10), the water pump (20) connect with water tank (10) pipe, be connected to the vavuum pump (30) of water pump (20) one end, be connected to the vacuum tank (40) of vavuum pump (30) away from water pump (20) one end, and the cooling unit (50) to be connected with vacuum tank (40), described vacuum tank (40) to education and correction for juvenile offenders connects a cooling unit (50), cooling unit described in each (50) comprises cooling tower (51), be arranged at the heat exchanger (511) in cooling tower (51) outside, be arranged at the surge tank (52) of cooling tower (51) top and be connected to the below second water inlet pipe (56) of heat exchanger (511), described surge tank (52) is communicated with vacuum tank (40), surge tank (52) is also communicated with the highest point of heat exchanger (511), vavuum pump (30) can regulate the vacuum of vacuum tank (40), and then regulate the vacuum of surge tank (52), thus the water in the second water inlet pipe (56) is pumped in surge tank (52) through heat exchanger (511).
2. the control system of a kind of cooling tower as claimed in claim 1, is characterized in that: described surge tank (52) top is equipped with a pneumatic operated valve (521) controlling described surge tank (52) and open and close.
3. the control system of a kind of cooling tower as claimed in claim 1, it is characterized in that: described second water inlet pipe (56) is provided with the second electric butterfly valve (54), described second electric butterfly valve (54) can control water and rise in the second water inlet pipe (56).
4. the control system of a kind of cooling tower as claimed in claim 1, it is characterized in that: in this control system, also comprise steam-water separator (60), described steam-water separator (60) pipe is connected between water pump (20) and vavuum pump (30), and the water side of described steam-water separator (60) is divided no matter water receiving case (10) and vavuum pump (30).
5. the control system of a kind of cooling tower as claimed in claim 4, is characterized in that: water side pipe water receiving case (10) of described vavuum pump (30), vavuum pump (30) exhaust end pipe connects steam-water separator (60).
6. the control system of a kind of cooling tower as claimed in claim 1, is characterized in that: described vacuum tank (40) is also communicated with water tank (70), described water tank (70) joining water box (10).
7. the control system of a kind of cooling tower as claimed in claim 4, is characterized in that: described steam-water separator (60) is provided with the first liquid level gauge (61).
8. the control system of a kind of cooling tower as claimed in claim 1, is characterized in that: described surge tank (52) is provided with the second liquid level gauge (522), and described vacuum tank (40) is provided with vacuum meter (41).
9. the control system of a kind of cooling tower as claimed in claim 1, is characterized in that: the quantity of described vavuum pump (30) has two and is connected with vacuum tank (40) after parallel connection.
10. the control system of a kind of cooling tower as claimed in claim 1, is characterized in that: the quantity of described cooling unit (50) is four and is connected with vacuum tank (40) after parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520892465.2U CN205192282U (en) | 2015-11-10 | 2015-11-10 | Control system of cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520892465.2U CN205192282U (en) | 2015-11-10 | 2015-11-10 | Control system of cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205192282U true CN205192282U (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520892465.2U Active CN205192282U (en) | 2015-11-10 | 2015-11-10 | Control system of cooling tower |
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| Country | Link |
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| CN (1) | CN205192282U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679447A (en) * | 2015-11-10 | 2017-05-17 | 江苏海鸥冷却塔股份有限公司 | Cooling tower control system |
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2015
- 2015-11-10 CN CN201520892465.2U patent/CN205192282U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679447A (en) * | 2015-11-10 | 2017-05-17 | 江苏海鸥冷却塔股份有限公司 | Cooling tower control system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |