CN205897667U - Industrial cooling water circulation system's controlgear and industrial cooling water circulation system - Google Patents
Industrial cooling water circulation system's controlgear and industrial cooling water circulation system Download PDFInfo
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- CN205897667U CN205897667U CN201620856133.3U CN201620856133U CN205897667U CN 205897667 U CN205897667 U CN 205897667U CN 201620856133 U CN201620856133 U CN 201620856133U CN 205897667 U CN205897667 U CN 205897667U
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Abstract
The utility model discloses an industrial cooling water circulation system's controlgear and industrial cooling water circulation system, wherein, controlgear includes a controller and a connected temperature sensor, the 2nd temperature sensor, difference in temperature regulator and pressure sensor, the pressure of controller in according to the water intake pipe of pressure sensor's workshop or workshop section, temperature in a temperature sensor determine's the workshop or the return water pipeline of workshop section, temperature in the 2nd temperature sensor determine's the workshop or the return water pipeline of workshop section, the flow of control difference in temperature regulator in to the water intake pipe of workshop or workshop section is adjusted. The utility model provides an industrial cooling water circulation system includes this controlgear, and it can be according to the pressure of intaking with returning water temperature difference and water intake pipe of each workshop or workshop section, the flow of intaking, the waste of the circulating water that has significantly reduced and the work power consumption of other supporting treatment facilities of each workshop of automatically regulated or workshop section under the condition of difference load.
Description
Technical field
This utility model is related to technical field of automatic control, particularly to a kind of control of industry cooling water circulation system
Equipment and industry cooling water circulation system.
Background technology
For solving the problems, such as the cooling of powerful device and long time running complex mechanical system, industry cooling water circulation system
It is used widely.Industry cooling water circulation system is typically mainly made up of water tank, water pump, heat exchanger, blower fan etc..How
Enough control that industry cooling water circulation system is normal, Effec-tive Function it is critical that.
Traditional industry cooling water circulation system adopts the control mode of constant pressure water supply, that is, ensure recirculated water outfall sewer
Pressure is constant.It is all the maximum load according to production yields during design cycle water, generally also retain on the basis of maximum load
20% surplus, when change in product load, recirculated water design pressure is far longer than actually required pressure.
Even if it is true that in the case of same load, different weather and weather, recirculated water desirable pressure also differs
Sample, such as winter desirable pressure are much smaller than summer.So, in traditional system recirculated water design pressure be constant voltage it is impossible to according to
Live institute's chilling requirement (under different load) is adjusted, and the design pressure of system is far longer than actually required pressure, when weather, gas
When time changes, fully cannot carry out heat exchange, cause energy waste.
Utility model content
A kind of control device of industry cooling water circulation system that this utility model provides, including controller, the first temperature
Sensor, second temperature sensor, temperature difference actuator and pressure transducer；
Described first temperature sensor, described temperature difference actuator and described pressure transducer be arranged at each workshop or
On the inlet pipeline of workshop section, described pressure transducer is located at the end of the inlet pipeline of described workshop or workshop section；
Described second temperature sensor is arranged on described workshop or the water return pipeline of workshop section；
Described controller connects described first temperature sensor, second temperature sensor, temperature difference actuator and pressure respectively
Force transducer, pressure in the described workshop that described controller detects according to described pressure transducer or the inlet pipeline of workshop section,
Water temperature in the water return pipeline of the described workshop of the first temperature sensor detection or workshop section, described second temperature sensor detect
Water temperature in the water return pipeline of described workshop or workshop section, controls the inlet pipeline to described workshop or workshop section for the described temperature difference actuator
In flow be adjusted.
A kind of control device of the industry cooling water circulation system providing as embodiment, this utility model, also wraps
Include flow transducer, differential pressure pickup and water circulating pump frequency-conversion control cabinet；
Described flow transducer is arranged on water inlet manifold road；
Described differential pressure pickup connects water inlet manifold road and total water return pipeline；
Described water circulating pump frequency-conversion control cabinet connects the water circulating pump in described industry cooling water circulation system；
Described flow transducer, differential pressure pickup and water circulating pump frequency-conversion control cabinet are all connected with described controller；
The flow on water inlet manifold road and described pressure difference sensing that described controller detects according to described flow transducer
Pressure reduction between water inlet manifold road that device detects and total water return pipeline, controls described water circulating pump frequency-conversion control cabinet to follow to described
The power of ring water pump is adjusted.
A kind of control device of the industry cooling water circulation system providing as embodiment, this utility model, also wraps
Include three-temperature sensor, the 4th temperature sensor and cooling water pump controlling switch；
Described three-temperature sensor is arranged on described water inlet manifold road, and described 4th temperature sensor is arranged on described
On total water return pipeline；
Described cooling water pump controlling switch connect each cooling tower in described industry cooling water circulation system；
Described controller connects described three-temperature sensor, the 4th temperature sensor and cooling tower control respectively and opens
Close, the water temperature on water inlet manifold road that described controller detects according to described three-temperature sensor and described 4th temperature pass
The water temperature on total water return pipeline that sensor detects, controls described cooling water pump controlling switch to adjust the unlatching shape of described cooling tower
State.
A kind of control device of the industry cooling water circulation system providing as embodiment, this utility model, also wraps
Include fan frequency conversion switch board；
Described fan frequency conversion switch board connects described controller and described cooling tower, and described controller is become by described blower fan
Frequency switch board is controlled to the blower fan in described cooling tower.
Correspondingly, this utility model also provides a kind of industry cooling water circulation system, including the work described in any of the above-described
The control device of industry cooling water recirculation system, also includes cooling tower, pond, water pump and circulation line；
Described circulation line includes water inlet manifold road, the inlet pipeline of total water return pipeline, each workshop or workshop section and each
Individual workshop or the water return pipeline of workshop section；
The inlet pipeline of described workshop or workshop section is connected with described water inlet manifold road；
The water return pipeline of described workshop or workshop section is connected with described total water return pipeline；
Described cooling tower is arranged on the end of described total water return pipeline, is provided with blower fan in described cooling tower；
Described pond connects described water inlet manifold road and described total water return pipeline；
Described water circulating pump is arranged on described water inlet manifold road.
This utility model having the beneficial effects that compared to prior art:
The control device of the industry cooling water circulation system that this utility model provides, according to the water inlet in each workshop or workshop section
Flow in the inlet pipeline of pipeline workshop corresponding with the size adjustment of the temperature difference in water return pipeline or workshop section is so that each workshop
Or the temperature difference in the inlet pipeline and water return pipeline of workshop section is maintained in default temperature range, recirculated water can be greatly reduced
Waste and the work of other supporting processing equipments is consumed energy.
The industry cooling water circulation system that this utility model provides includes the control device of this industry cooling water circulation system,
In the case of different load, under different ambient temperatures (for example, different weather, weather etc.), can be according to each car
Between or the water inlet of workshop section and the pressure of backwater temperature difference and inlet pipeline, automatically adjust the flow of inlet water of each workshop or workshop section,
Greatly reduce the waste of recirculated water and the work power consumption of other supporting processing equipments.
Brief description
The structural representation of the control device of the industry cooling water circulation system that Fig. 1 provides for this utility model embodiment one
Figure；
The structural representation of the control device of the industry cooling water circulation system that Fig. 2 provides for this utility model embodiment two
Figure；
The structural representation of the control device of the industry cooling water circulation system that Fig. 3 provides for this utility model embodiment three
Figure；
The structural representation of the industry cooling water circulation system that Fig. 4 provides for this utility model example IV.
Specific embodiment
Below in conjunction with accompanying drawing, the above-mentioned He other technical characteristic of this utility model and advantage are carried out clearly and completely
Description is it is clear that described embodiment is only section Example of the present utility model, rather than whole embodiments.
Referring to Fig. 1 and Fig. 4, this utility model embodiment one provides a kind of control of industry cooling water circulation system and sets
Standby, pass including controller 100, the first temperature sensor 200, second temperature sensor 300, temperature difference actuator 400 and pressure
Sensor 500.Wherein, controller 100 connects the first temperature sensor 200, second temperature sensor 300, temperature difference actuator respectively
400 and pressure transducer 500.
First temperature sensor 200 is arranged on each workshop or the inlet pipeline of workshop section, for detect each workshop or
Water temperature in the water return pipeline of workshop section；Second temperature sensor 300 is arranged on each workshop or the water return pipeline of workshop section, is used for
Detect the water temperature in each workshop or the water return pipeline of workshop section；Temperature difference actuator 400 is arranged on the water inlet of each workshop or workshop section
On pipeline, it is adjusted for the flow in the inlet pipeline to workshop or workshop section；Pressure transducer 500 is arranged on each workshop
Or the end of the inlet pipeline of workshop section, for detecting the pressure in the inlet pipeline in workshop or workshop section.
Pressure in workshop that controller 100 detects according to pressure transducer 500 or the inlet pipeline of workshop section, the first temperature
Water temperature in the water return pipeline of the workshop of sensor 200 detection or workshop section, the workshop of second temperature sensor 300 detection or workshop section
Water return pipeline in water temperature, control temperature difference actuator 400 flow in the inlet pipeline of workshop or workshop section is adjusted.
Specifically, controller 100 obtains the inlet pipeline of each workshop or workshop section in real time by the first temperature sensor 200
In water temperature, the water temperature in each workshop or the water return pipeline of workshop section, Ran Hougen are obtained in real time by second temperature sensor 300
According to the water temperature calculating temperature difference in the water temperature and water return pipeline in the inlet pipeline of each workshop or workshop section.If this workshop or workshop section's temperature
Difference is more than default temperature difference higher limit, and controller 100 then increases the water inlet of this workshop or workshop section by described temperature difference actuator 400
Flow in pipeline；If this workshop or workshop section's temperature difference are less than default temperature difference lower limit, controller 100 is then adjusted by the described temperature difference
Section device 400 reduces the flow in this workshop or the inlet pipeline of workshop section.
Above-mentioned temperature difference higher limit and temperature difference lower limit are arranged all in accordance with actual process, when workshop or workshop section inlet pipeline and
The temperature difference in water return pipeline be maintained at default temperature range (i.e. between temperature difference higher limit and temperature difference lower limit) interior when, whole be
The power consumption of system is minimum.Temperature difference higher limit herein and temperature difference lower limit may be configured as identical value, the as minimum time-consuming temperature of system
Difference.
So, the workshop corresponding with the size adjustment of the temperature difference in water return pipeline of the inlet pipeline according to each workshop or workshop section
Or the flow in the inlet pipeline of workshop section is so that the temperature difference in the inlet pipeline and water return pipeline of each workshop or workshop section is maintained at
In default temperature range, the waste of recirculated water and the work power consumption of other supporting processing equipments can be greatly reduced.
It should be noted that less than normal in certain workshop or workshop section's temperature difference, controller 100 is reduced by temperature difference actuator 400
When flow in the inlet pipeline of this workshop or workshop section, lead to hydraulic pressure too low to prevent from reducing flow, the present embodiment exists
The end of the inlet pipeline of each workshop or workshop section is provided with pressure transducer 500.This pressure transducer 500 and controller 100
Connect, the pressure in the inlet pipeline of real-time detection workshop or workshop section.Once finding in this workshop or the inlet pipeline of workshop section
Pressure reaches default low pressure threshold, and controller 100 then can control temperature difference actuator 400 to stop reducing this workshop or workshop section at once
Inlet pipeline in pressure action.
Low pressure threshold is required minimal pressure force value during the inlet pipeline normal circulation of each workshop or workshop section, according to reality
Border technique setting.
The flow of inlet water of each workshop of valve regulation or workshop section is adjusted by the temperature difference so as to close proximity to the temperature setting in advance
Difference, sets temperature approach when actual temperature approach is equal to, when actual pressure is more than or equal to setting pressure value, then for optimum state；
Set temperature approach when actual temperature approach is less than or equal to, when actual pressure is less than or equal to setting pressure value, then controller 100 must
Must be preferential to meet pressure, in the case of meeting farthest end pressure, close proximity to fiducial temperature value or temperature range, reduce consumption
Energy.
The present embodiment in the case of different load, (for example, different weather, weather under different ambient temperatures
Deng), each workshop can be automatically adjusted according to the pressure of the water inlet of each workshop or workshop section and backwater temperature difference and inlet pipeline
Or the flow of inlet water of workshop section, reduce system energy consumption.
Referring to Fig. 2 and Fig. 4, this utility model embodiment two provides a kind of control of industry cooling water circulation system and sets
Standby, also include flow transducer 600, differential pressure pickup 700 and water circulating pump frequency conversion control on the basis of above-described embodiment one
Cabinet 800 processed.
Wherein, flow transducer 600 is arranged on water inlet manifold road, for detecting the flow on water inlet manifold road.Pressure reduction passes
Sensor 700 connects water inlet manifold road and total water return pipeline, the pressure reduction between detection water inlet manifold road and total water return pipeline.Recirculated water
Pump frequency conversion switch board 800 connects the water circulating pump 1003 in industry cooling water circulation system, controls the output of water circulating pump 1003
Power.Flow transducer 600, differential pressure pickup 700 and water circulating pump frequency-conversion control cabinet 800 are all connected with controller 100, control
Total water inlet that the flow on water inlet manifold road that device 100 detects according to flow transducer 600 is detected with differential pressure pickup 700
Pressure reduction between pipeline and total water return pipeline, controls water circulating pump frequency-conversion control cabinet 800 that the power of water circulating pump 1003 is carried out
Adjust.
In the case that the temperature difference is certain, when the chilling requirement change of live institute, by increasing and decreasing the input number of units of water circulating pump 1003
And frequency, to reach the supply changing quantity of circulating water, can be further up to the purpose of energy-conservation.
Based on above-mentioned principle, the present embodiment passes through the flow transducer 600 that setting is arranged on water inlet manifold road, total water inlet
Differential pressure pickup 700 between pipeline and total water return pipeline obtains flow and water inlet manifold road and total backwater on water inlet manifold road
Pressure reduction between pipeline, and then calculate the output general power of the water circulating pump 1003 of reality by controller 100 (actual for following
The general power of the motor of ring water pump), and then according to the characteristic curve of motor it is possible to calculate the motor number of units of needs
With the output of every, the i.e. quantity of water circulating pump 1003 and power, carried out by controlling water circulating pump frequency-conversion control cabinet 800
Adjust, make each water circulating pump be operated in optimum state, save electric energy.
Referring to Fig. 3 and Fig. 4, this utility model embodiment three provides a kind of control of industry cooling water circulation system and sets
Standby, on the basis of above-described embodiment two, also include three-temperature sensor 900, the 4th temperature sensor 910 and cooling tower
Controlling switch 920.
Wherein, three-temperature sensor 900 is arranged on water inlet manifold road, for detecting the water temperature in water inlet manifold road；
4th temperature sensor 910 is arranged on total water return pipeline, for detecting the water temperature in total water return pipeline；Cooling water pump controlling switch
920 connect the blower fan in the cooling tower 1001 in industry cooling water circulation system；Controller 100 connects the 3rd temperature sensing respectively
Device 900, the 4th temperature sensor 910 and cooling water pump controlling switch 920, controller 100 is examined according to three-temperature sensor 900
The water temperature on total water return pipeline that the water temperature on water inlet manifold road measuring and the 4th temperature sensor 910 detect, controls cold
But tower controlling switch 920 adjusts the opening of cooling tower 1001.
In the same manner, if the water temperature over-high on the water inlet manifold road that detects of three-temperature sensor 900 or the 4th temperature pass
The water temperature over-high on total water return pipeline that sensor 910 detects, then controller 100 control cooling water pump controlling switch 920 open portion
/ front the cooling tower 1001 do not opened.If the water temperature on the water inlet manifold road that three-temperature sensor 900 detects too low or
The water temperature on total water return pipeline that person the 4th temperature sensor 910 detects is too low, then controller 100 controls cooling tower to control and opens
Close the front cooling tower 1001 opened that 920 close portion are divided, thus reducing the energy consumption of cooling tower 1001.Such as, cooling tower 1001 drops
The warm limit is 28 DEG C, if the 4th temperature sensor detection temperature < 28 DEG C, closes all cooling towers 1001.
According to the flow on water inlet manifold road, cooling water pump controlling switch 920 can also be controlled.For example, cold to every
But cooling water pump controlling switch 920 (for example, electric switching valve etc.) installed by the water inlet pipe of tower 1001, by being arranged on water inlet manifold road
On flow transducer detect the flow on water inlet manifold road it is assumed that totally 3 cooling towers 1001, every treating capacity is 100t/h, when
When flow of inlet water is equal to less than 200t/h, then close run time cooling tower the longest by cooling water pump controlling switch 920
1001, when water flow is equal to less than 100t/h, then closes another by cooling water pump controlling switch 920 further and transport
The cooling tower 1001 of row, on the contrary control corresponding unlatching.
Further, the control device of the industry cooling water circulation system that the present embodiment provides, also includes fan frequency conversion control
Cabinet 930 processed, fan frequency conversion switch board 930 connects controller 100 and cooling tower 1001, and controller 100 is controlled by fan frequency conversion
Cabinet 930 is controlled to the blower fan in cooling tower 1001.The frequency of operating blower fan detects according to three-temperature sensor 900
Water inlet manifold road temperature, and the temperature of total water return pipeline of the 4th temperature sensor 910 detection is adjusted so that
Blower fan work is in the state of energy-conservation.
Referring to Fig. 4, this utility model example IV provides a kind of industry cooling water circulation system, including any of the above-described reality
Apply the control device of the industry cooling water circulation system described in example, also include cooling tower 1001, pond 1002, water circulating pump 1003
And circulation line.
Wherein, circulation line includes water inlet manifold road, the inlet pipeline of total water return pipeline, each workshop or workshop section and each
Individual workshop or the water return pipeline of workshop section；The inlet pipeline of workshop or workshop section is connected with water inlet manifold road；Workshop or the backwater of workshop section
Pipeline is connected with total water return pipeline；Cooling tower 1001 is arranged on the end of total water return pipeline, and cooling tower 1001 is multiple, wherein sets
It is equipped with blower fan；Pond 1002 connects water inlet manifold road and total water return pipeline；Water circulating pump 1003 is arranged on water inlet manifold road.
The industry cooling water circulation system that the present embodiment provides, in the different ambient temperature of different load or same load
Under (for example, different weather, weather etc.), can be according to the water inlet of each workshop or workshop section and backwater temperature difference and inlet pipeline
Pressure, automatically adjust the flow of inlet water of each workshop or workshop section, greatly reduce waste and other supporting places of recirculated water
The work power consumption of reason equipment.
Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect
The detailed description of step, it will be appreciated that the foregoing is only specific embodiment of the utility model, is not used to limit this reality
With new protection domain.Particularly point out, to those skilled in the art, all of the present utility model spirit and principle it
Interior, any modification, equivalent substitution and improvement done etc., should be included within protection domain of the present utility model.
Claims (5)
1. a kind of control device of industry cooling water circulation system it is characterised in that include controller, the first temperature sensor,
Second temperature sensor, temperature difference actuator and pressure transducer；
Described first temperature sensor, described temperature difference actuator and described pressure transducer are arranged at each workshop or workshop section
Inlet pipeline on, described pressure transducer is located at the end of the inlet pipeline of described workshop or workshop section；
Described second temperature sensor is arranged on described workshop or the water return pipeline of workshop section；
Described controller connects described first temperature sensor, second temperature sensor, temperature difference actuator and pressure respectively and passes
Sensor, pressure in the described workshop that described controller detects according to described pressure transducer or the inlet pipeline of workshop section, first
It is described that water temperature in the water return pipeline of the described workshop of temperature sensor detection or workshop section, described second temperature sensor detect
Water temperature in the water return pipeline of workshop or workshop section, controls in the inlet pipeline to described workshop or workshop section for the described temperature difference actuator
Flow is adjusted.
2. the control device of industry cooling water circulation system according to claim 1 passes it is characterised in that also including flow
Sensor, differential pressure pickup and water circulating pump frequency-conversion control cabinet；
Described flow transducer is arranged on water inlet manifold road；
Described differential pressure pickup connects water inlet manifold road and total water return pipeline；
Described water circulating pump frequency-conversion control cabinet connects the water circulating pump in described industry cooling water circulation system；
Described flow transducer, differential pressure pickup and water circulating pump frequency-conversion control cabinet are all connected with described controller；
The flow on water inlet manifold road that described controller detects according to described flow transducer and described differential pressure pickup inspection
Pressure reduction between the water inlet manifold road measuring and total water return pipeline, controls described water circulating pump frequency-conversion control cabinet to described recirculated water
The power of pump is adjusted.
3. the control device of industry cooling water circulation system according to claim 2 is it is characterised in that also include the 3rd temperature
Degree sensor, the 4th temperature sensor and cooling water pump controlling switch；
Described three-temperature sensor is arranged on described water inlet manifold road, and described 4th temperature sensor is arranged on described total time
In water lines；
Described cooling water pump controlling switch connect each cooling tower in described industry cooling water circulation system；
Described controller connects described three-temperature sensor, the 4th temperature sensor and cooling water pump controlling switch, institute respectively
State the water temperature on the water inlet manifold road that controller detects according to described three-temperature sensor and described 4th temperature sensor
The water temperature on total water return pipeline detecting, controls described cooling water pump controlling switch to adjust the opening of described cooling tower.
4. the control device of industry cooling water circulation system according to claim 3 becomes it is characterised in that also including blower fan
Frequency switch board；
Described fan frequency conversion switch board connects described controller and described cooling tower, and described controller is by described fan frequency conversion control
Cabinet processed is controlled to the blower fan in described cooling tower.
5. a kind of industry cooling water circulation system is it is characterised in that include the industry described in any one of the claims 1 to 4
The control device of cooling water recirculation system, also includes cooling tower, pond, water circulating pump and circulation line；
Described circulation line includes water inlet manifold road, the inlet pipeline of total water return pipeline, each workshop or workshop section and each car
Between or workshop section water return pipeline；
The inlet pipeline of described workshop or workshop section is connected with described water inlet manifold road；
The water return pipeline of described workshop or workshop section is connected with described total water return pipeline；
Described cooling tower is arranged on the end of described total water return pipeline, is provided with blower fan in described cooling tower；
Described pond connects described water inlet manifold road and described total water return pipeline；
Described water circulating pump is arranged on described water inlet manifold road.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620856133.3U CN205897667U (en) | 2016-08-09 | 2016-08-09 | Industrial cooling water circulation system's controlgear and industrial cooling water circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620856133.3U CN205897667U (en) | 2016-08-09 | 2016-08-09 | Industrial cooling water circulation system's controlgear and industrial cooling water circulation system |
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| CN201620856133.3U Active CN205897667U (en) | 2016-08-09 | 2016-08-09 | Industrial cooling water circulation system's controlgear and industrial cooling water circulation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162316A (en) * | 2018-08-28 | 2019-01-08 | 江苏天纳节能科技股份有限公司 | A kind of industrial circulating water system and its recovery method of lift recycling more than needed |
| CN109387014A (en) * | 2018-10-26 | 2019-02-26 | 江苏亨通电力特种导线有限公司 | Industry cooling water controling method and system |
| CN111707049A (en) * | 2020-06-09 | 2020-09-25 | 西安交通大学 | Refrigerant mass flow control system and method for pump barrel liquid supply refrigeration system |
| CN111706453A (en) * | 2020-06-24 | 2020-09-25 | 北京百度网讯科技有限公司 | Generator set preheating system and control method thereof |
-
2016
- 2016-08-09 CN CN201620856133.3U patent/CN205897667U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162316A (en) * | 2018-08-28 | 2019-01-08 | 江苏天纳节能科技股份有限公司 | A kind of industrial circulating water system and its recovery method of lift recycling more than needed |
| CN109387014A (en) * | 2018-10-26 | 2019-02-26 | 江苏亨通电力特种导线有限公司 | Industry cooling water controling method and system |
| CN111707049A (en) * | 2020-06-09 | 2020-09-25 | 西安交通大学 | Refrigerant mass flow control system and method for pump barrel liquid supply refrigeration system |
| CN111707049B (en) * | 2020-06-09 | 2021-04-20 | 西安交通大学 | Refrigerant mass flow control system and method for pump barrel liquid supply refrigeration system |
| CN111706453A (en) * | 2020-06-24 | 2020-09-25 | 北京百度网讯科技有限公司 | Generator set preheating system and control method thereof |
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