CN110617557A - Automatic spraying control system and control method - Google Patents

Automatic spraying control system and control method Download PDF

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Publication number
CN110617557A
CN110617557A CN201910891435.2A CN201910891435A CN110617557A CN 110617557 A CN110617557 A CN 110617557A CN 201910891435 A CN201910891435 A CN 201910891435A CN 110617557 A CN110617557 A CN 110617557A
Authority
CN
China
Prior art keywords
temperature switch
exhaust temperature
control system
preset
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910891435.2A
Other languages
Chinese (zh)
Inventor
罗波
张菀
王坤
肖勇
李猛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Isco Technology Group Ltd By Share Ltd
Original Assignee
Isco Technology Group Ltd By Share Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Isco Technology Group Ltd By Share Ltd filed Critical Isco Technology Group Ltd By Share Ltd
Priority to CN201910891435.2A priority Critical patent/CN110617557A/en
Publication of CN110617557A publication Critical patent/CN110617557A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/039Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing using water to enhance cooling, e.g. spraying onto condensers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32Responding to malfunctions or emergencies
    • F24F11/33Responding to malfunctions or emergencies to fire, excessive heat or smoke
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00Control inputs relating to system states
    • F24F2140/20Heat-exchange fluid temperature

Abstract

The invention discloses an automatic spraying control system, which comprises a fuse, an electromagnetic valve, a normally-open ambient temperature switch and an exhaust temperature switch, wherein the electromagnetic valve is connected in series in a spraying system; the invention also discloses a control method of the automatic spraying control system, which realizes the on-off of the circuit by simultaneously closing the environment temperature switch and the exhaust temperature switch, can ensure that the spraying system can not spray when in a shutdown state, and avoids the waste of water resources; and the exhaust temperature and the ambient temperature are jointly used as references, so that the control accuracy can be ensured, and the control precision is improved.

Description

Automatic spraying control system and control method
Technical Field
The invention relates to the technical field of air conditioners, in particular to an automatic spraying control system and a control method of the automatic spraying control system.
Background
In high temperature weather, outdoor condenser heat transfer effect variation, condensation temperature rises, and computer lab cooling system energy consumption risees, and easily appears high-pressure warning to the air cooled condenser, influences computer lab safe operation. The evaporative condenser adopts a spraying system to atomize cooling water into small droplets through a nozzle and spray the droplets on the condenser, and the droplets are evaporated to absorb the heat of a refrigerant in the condenser.
In the control of the spray system of the evaporative condenser, the environmental temperature value is generally acquired through a temperature sensor, and then the spray is controlled through a controller or a PLC (programmable logic controller), so that the control of the spray system is realized, and the control cost is high and is uneconomical; however, only the ambient temperature is used as the control parameter, the control method is not accurate, especially in summer, the indoor heat load is low, and the air conditioner is frequently required to be started and shut down, but the spraying system is always started, and water resources are wasted.
Disclosure of Invention
The invention aims to overcome the defects that when the spraying system is controlled in the prior art, the spraying system is controlled only by adopting the external temperature as a parameter, the control is not accurate, and meanwhile, the spraying system still works to cause the waste of water resources due to frequent start and stop of an air conditioner caused by low indoor heat load in summer, thereby providing an automatic spraying control system and a control method.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides an automatic spray control system which characterized in that: including fuse, solenoid valve and the ambient temperature switch and the exhaust temperature switch that are the normal open type, the solenoid valve is established ties in spraying system, fuse, solenoid valve, ambient temperature switch and exhaust temperature switch are connected through the mode of establishing ties.
The fuse is a flip fuse holder.
The preset temperature value of the environment temperature switch is smaller than the preset temperature value of the exhaust temperature switch.
The preset temperature value of the environment temperature switch is 28-32 ℃, and the preset temperature value of the exhaust temperature switch is 50-70 ℃.
The automatic spraying control system has the specific control method as follows,
a: when T1 is more than or equal to T2, the air conditioner operates;
b: when T3 is more than or equal to T4, the exhaust temperature switch acts and is closed;
c: when T1 is more than or equal to T5, the ambient temperature switch acts and is closed;
d: when A, B and C are met simultaneously, the series circuit is conducted, the electromagnetic valve is opened, and the spraying system is started and starts to operate;
wherein, T1 is the ambient temperature, T2 is the air conditioner opening temperature, T3 is the exhaust temperature, T4 is the preset exhaust temperature, and T5 is the preset ambient temperature.
Compared with the prior art, the invention has the following beneficial effects:
the invention realizes the on-off of the exhaust temperature switch and the environment temperature switch by connecting the fuse, the electromagnetic valve, the environment temperature switch and the exhaust temperature switch in series, taking the external environment temperature and the exhaust temperature as the reference, and comparing the preset exhaust temperature with the actual exhaust temperature, the preset environment temperature and the actual environment temperature, thereby realizing the conduction of the series circuit, realizing the control of the electromagnetic valve and further realizing the control of the spraying system; therefore, the on-off of the circuit is realized by simultaneously closing the environment temperature switch and the exhaust temperature switch, so that the spraying system can not spray in a shutdown state, and the waste of water resources is avoided; and the exhaust temperature and the ambient temperature are jointly used as references, so that the control accuracy can be ensured, and the control precision is improved.
And through the fuse that sets up, can effectual the purpose of playing the protection to the circuit, when using, it is safer.
Drawings
Fig. 1 is a schematic diagram of a proposed structure of an automatic spray control system of the present invention.
Reference numerals: 1 cover-lifting fuse seat, 2 environment temperature switch, 3 exhaust temperature switch and 4 electromagnetic valve.
Detailed Description
The present invention will be further described with reference to the following examples, which are intended to illustrate only some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, other embodiments used by those skilled in the art without any creative effort belong to the protection scope of the present invention.
The automatic spraying control system shown in fig. 1 comprises a fuse, an electromagnetic valve 4, a normally-open ambient temperature switch 2 and an exhaust temperature switch 3, wherein the electromagnetic valve 4 is connected in series in the spraying system, and the fuse, the electromagnetic valve 4, the ambient temperature switch 2 and the exhaust temperature switch 3 are connected in series.
The electromagnetic valve 4 is used for controlling the connection and disconnection of the spraying system.
Wherein, the fuse is a flip fuse holder 1.
The preset temperature value of the environment temperature switch 2 is smaller than the preset temperature value of the exhaust temperature switch 3, specifically, the preset temperature value of the environment temperature switch 2 is 28-32 ℃, and the preset temperature value of the exhaust temperature switch 3 is 50-70 ℃.
In this embodiment, the preset temperature value of the ambient temperature switch 2 is 30 ℃, and the preset temperature value of the exhaust temperature switch 3 is 60 ℃.
The control method of the automatic spraying control system comprises the following steps:
a: when T1 is more than or equal to T2, the air conditioner operates;
b: when T3 is more than or equal to T4, the exhaust temperature switch 3 acts, and the exhaust temperature switch 3 is closed;
c: when T1 is more than or equal to T5, the ambient temperature switch 2 acts, and the ambient temperature switch 2 is closed;
d: when A, B and C are met simultaneously, the series circuit is conducted, the electromagnetic valve 4 is opened, and the spraying system is opened and starts to operate;
wherein, T1 is the ambient temperature, T2 is the air conditioner opening temperature, T3 is the exhaust temperature, T4 is the preset exhaust temperature, and T5 is the preset ambient temperature.
Thus, the control of the spraying system is realized through the method; when the ambient temperature exceeds the starting temperature of the air conditioner, the external temperature is higher, and the air conditioner is started; at the moment, if the exhaust temperature exceeds the preset exhaust temperature, the exhaust temperature switch 3 acts to close the exhaust temperature switch so as to locally connect the circuit; when the ambient temperature exceeds the preset ambient temperature, the ambient temperature switch 2 acts to close the ambient temperature switch, the whole circuit is communicated, and the electromagnetic valve 4 is electrified to control the spraying system to be opened; otherwise, the circuit is disconnected, the electromagnetic valve 4 is powered off, and the spraying system is closed; so, only when ambient temperature switch 2 and exhaust temperature switch 3 were closed simultaneously, could open spraying system, all the other circumstances, the circuit will be the off-state, like this, if the air conditioner closes suddenly, actual exhaust temperature reduces, and at this moment, exhaust temperature switch 3 disconnection forces whole circuit to be the off-state, and solenoid valve 4 loses the electricity and closes, and spraying system is shown to be closed, can avoid the waste of water resource like this, has also guaranteed spraying system's control accuracy.
The control of the system can be realized through the physical action of the normally-open temperature switch, the complex control process of a controller or a PLC is cancelled, and the opening and closing of the spraying system can be automatically controlled through the opening and closing of the temperature switch; through the cooperation of the ambient temperature switch 2 and the exhaust temperature switch 3, the spraying system is guaranteed to be started when the air conditioner is started, the waste of water resources is avoided, and the purpose of saving water is achieved.

Claims (5)

1. The utility model provides an automatic spray control system which characterized in that: including fuse, solenoid valve and the ambient temperature switch and the exhaust temperature switch that are the normal open type, the solenoid valve is established ties in spraying system, fuse, solenoid valve, ambient temperature switch and exhaust temperature switch are connected through the mode of establishing ties.
2. The automatic spray control system of claim 1, wherein: the fuse is a flip fuse holder.
3. The automatic spray control system of claim 1, wherein: the preset temperature value of the environment temperature switch is smaller than the preset temperature value of the exhaust temperature switch.
4. An automatic spray control system according to claim 3, wherein: the preset temperature value of the environment temperature switch is 28-32 ℃, and the preset temperature value of the exhaust temperature switch is 50-70 ℃.
5. A control method of an automatic spraying control system is characterized in that: comprises the automatic spraying control system of any one of claims 1 to 4, and the specific control method is as follows,
a: when T1 is more than or equal to T2, the air conditioner operates;
b: when T3 is more than or equal to T4, the exhaust temperature switch acts and is closed;
c: when T1 is more than or equal to T5, the ambient temperature switch acts and is closed;
d: when A, B and C are met simultaneously, the series circuit is conducted, the electromagnetic valve is opened, and the spraying system is started and starts to operate;
wherein, T1 is the ambient temperature, T2 is the air conditioner opening temperature, T3 is the exhaust temperature, T4 is the preset exhaust temperature, and T5 is the preset ambient temperature.
CN201910891435.2A 2019-09-20 2019-09-20 Automatic spraying control system and control method Pending CN110617557A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910891435.2A CN110617557A (en) 2019-09-20 2019-09-20 Automatic spraying control system and control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910891435.2A CN110617557A (en) 2019-09-20 2019-09-20 Automatic spraying control system and control method

Publications (1)

Publication Number Publication Date
CN110617557A true CN110617557A (en) 2019-12-27

Family

ID=68923615

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910891435.2A Pending CN110617557A (en) 2019-09-20 2019-09-20 Automatic spraying control system and control method

Country Status (1)

Country Link
CN (1) CN110617557A (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08121848A (en) * 1994-10-27 1996-05-17 Matsushita Refrig Co Ltd Air conditioner
CN202601457U (en) * 2012-05-05 2012-12-12 珠海格力电器股份有限公司 Control device used for actuating mechanism
CN103727649A (en) * 2013-12-17 2014-04-16 青岛海信日立空调系统有限公司 Air-cooled air conditioning unit with auxiliary water cooling device and control method of air conditioning unit
CN104566656A (en) * 2015-02-02 2015-04-29 珠海格力电器股份有限公司 Air conditioning system and control method thereof
CN104633988A (en) * 2015-02-03 2015-05-20 珠海格力电器股份有限公司 Air-cooling cold and hot water air conditioning system and control method thereof
CN204775274U (en) * 2015-06-04 2015-11-18 中铁二十二局集团第二工程有限公司 Railway transportation derail safety arrangement
CN205487828U (en) * 2016-02-26 2016-08-17 中车青岛四方机车车辆股份有限公司 Motor car group security circuit allies oneself with locking control device
CN108127102A (en) * 2018-02-28 2018-06-08 广西玉柴机器股份有限公司 Remove the device of the punch-out equipment hydraulic cylinder end face dust accumulation grains of sand
CN108954883A (en) * 2018-09-19 2018-12-07 无锡沃尔得精密工业有限公司 Energy-saving cooler
CN208205486U (en) * 2018-05-17 2018-12-07 浙江国祥股份有限公司 Water cooler with free refrigerating function
CN209189401U (en) * 2018-09-13 2019-08-02 大连日东塑料加工有限公司 Induction type blowning installation on conveyer belt

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08121848A (en) * 1994-10-27 1996-05-17 Matsushita Refrig Co Ltd Air conditioner
CN202601457U (en) * 2012-05-05 2012-12-12 珠海格力电器股份有限公司 Control device used for actuating mechanism
CN103727649A (en) * 2013-12-17 2014-04-16 青岛海信日立空调系统有限公司 Air-cooled air conditioning unit with auxiliary water cooling device and control method of air conditioning unit
CN104566656A (en) * 2015-02-02 2015-04-29 珠海格力电器股份有限公司 Air conditioning system and control method thereof
CN104633988A (en) * 2015-02-03 2015-05-20 珠海格力电器股份有限公司 Air-cooling cold and hot water air conditioning system and control method thereof
CN204775274U (en) * 2015-06-04 2015-11-18 中铁二十二局集团第二工程有限公司 Railway transportation derail safety arrangement
CN205487828U (en) * 2016-02-26 2016-08-17 中车青岛四方机车车辆股份有限公司 Motor car group security circuit allies oneself with locking control device
CN108127102A (en) * 2018-02-28 2018-06-08 广西玉柴机器股份有限公司 Remove the device of the punch-out equipment hydraulic cylinder end face dust accumulation grains of sand
CN208205486U (en) * 2018-05-17 2018-12-07 浙江国祥股份有限公司 Water cooler with free refrigerating function
CN209189401U (en) * 2018-09-13 2019-08-02 大连日东塑料加工有限公司 Induction type blowning installation on conveyer belt
CN108954883A (en) * 2018-09-19 2018-12-07 无锡沃尔得精密工业有限公司 Energy-saving cooler

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Application publication date: 20191227

RJ01 Rejection of invention patent application after publication