CN210425442U - Variable air volume energy-saving control cabinet - Google Patents
Variable air volume energy-saving control cabinet Download PDFInfo
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- CN210425442U CN210425442U CN201920891483.7U CN201920891483U CN210425442U CN 210425442 U CN210425442 U CN 210425442U CN 201920891483 U CN201920891483 U CN 201920891483U CN 210425442 U CN210425442 U CN 210425442U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model discloses a variable air volume energy-saving control cabinet, which comprises a programmable controller, an industrial control integrated machine, a cloud processor, a switch, an air supply temperature sensor IN1, an air return temperature sensor IN2, an air supply carbon dioxide sensor IN3, an air return carbon dioxide sensor IN4, a fresh air carbon dioxide sensor IN5, an air supply air volume sensor IN6, a fresh air volume sensor IN7 and 2 direct current power supplies for supplying power; the industrial control all-in-one machine and the cloud processor are electrically connected with the switch, the cloud processor is electrically connected with the programmable controller, and the programmable controller is respectively electrically connected with the air supply fan and the fresh air valve. The utility model has the characteristics of accessible new amount of wind mass balance control both guarantees the travelling comfort of environment but energy saving and consumption reduction.
Description
Technical Field
The utility model belongs to the technical field of the switch board technique and specifically relates to a variable air volume energy-saving control cabinet is related to.
Background
A) The fresh air volume is controlled roughly and is difficult to determine. Or excessively introduce fresh air, cause the system to waste more cold energy in order to cool this part of high temperature fresh air. Or too little fresh air is introduced, so that the air quality of a public control area is poor, and the comfort level of passengers is influenced.
B) The matching of the air supply quantity and the freezing water quantity in the combined air-conditioning box is very important, when the air supply machine acts before the freezing water valve, the air quantity which does not meet the temperature requirement can enter a control area, the comfort level of the control area is influenced, and the energy consumption of the air supply machine is wasted. When the chilled water valve is operated before the air blower, the exchanged cold air cannot be delivered to the control area, and waste is also caused.
C) Data processing is difficult without system management, and service timeliness is poor and after-sale is passive.
D) The end devices lack uniform, systematic control. Different devices are controlled independently, although energy-saving measures are also used, the cooperativity is poor, a uniform control strategy is lacked, and the total energy consumption of the system is higher.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the variable air volume energy-saving control cabinet.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a variable air volume energy-saving control cabinet comprises a programmable controller, an industrial control all-IN-one machine, a cloud processor, a switch, an air supply temperature sensor IN1, an air return temperature sensor IN2, an air supply carbon dioxide sensor IN3, an air return carbon dioxide sensor IN4, a fresh air carbon dioxide sensor IN5, an air supply volume sensor IN6, a fresh air volume sensor IN7 and 2 direct current power supplies for supplying power; the industrial control all-in-one machine and the cloud processor are electrically connected with the switch, the cloud processor is electrically connected with the programmable controller, and the programmable controller is respectively electrically connected with the air supply fan and the fresh air valve.
The utility model discloses a fresh air volume mass balance control has solved the problem that the fresh air volume of wind was confirmed, on outdoor and indoor air mass balance's basis, has compromise the control of equipment energy consumption. The utility model discloses cloud processing function with system data passes through the third party interface with the help of the internet, has set up industrial equipment data processing cloud platform, on equipment data acquisition, equipment management, equipment monitoring basis, makes the system possess functions such as remote diagnosis, report on line and repair, failure analysis.
The utility model discloses a control core is Siemens programmable controller, and this controller is a relatively high-end in the numerous series of Siemens, has configured multiple interfaces such as RS485, ethernet mouth, possess characteristics such as programming powerful, the arithmetic speed is fast.
The programmable controller of the utility model controls the opening of the fresh air valve according to the detection results of the air supply carbon dioxide sensor IN3, the return air carbon dioxide sensor IN4 and the fresh air carbon dioxide sensor IN5,
the programmable controller adjusts the frequency of the air supply fan according to the detection results of the air supply temperature sensor IN1 and the return air temperature sensor IN2, so that the fresh air quantity quality of a control area where the air conditioner is installed is balanced, and the energy consumption is reduced.
Preferably, the intelligent cabinet also comprises a cabinet body and a cabinet door, wherein the cabinet door is provided with a touch screen, and the touch screen is electrically connected with the programmable controller.
Preferably, the cabinet body and the cabinet door are rectangular, and a plurality of pieces of transparent glass are arranged on the cabinet door.
Preferably, the cabinet body and the cabinet door are respectively provided with a handle, and the programmable controller, the industrial control all-in-one machine, the cloud processor and the switch are all positioned in the cabinet body.
Preferably, the cabinet body further comprises a wire groove.
Preferably, the upper end of the cabinet body is provided with a plurality of stiffening beams.
Therefore, the utility model discloses following beneficial effect has:
can be based on the comfort and CO of the control area2The fresh air quantity of the index adjusting system can be adjusted according to the comfort level and CO of the control area in a small fresh air mode2The use of fresh air volume is reduced as much as possible on the premise that the index meets the requirement;
through the mass balance control of the fresh air volume, the problem of determining the fresh air volume is solved, the fresh air can be reasonably introduced according to actual needs, the comfort of the environment is ensured, and the purposes of energy conservation and consumption reduction are achieved. On the basis of meeting the quality balance of outdoor and indoor air, the requirements of energy conservation and consumption reduction of equipment are considered;
the system has a cloud processing function of system data, an industrial equipment data processing cloud platform is established through a third-party interface by means of the Internet, and the system has the functions of remote diagnosis, online repair reporting, fault analysis and the like on the basis of equipment data acquisition, equipment management and equipment monitoring;
the running state and the related running parameters of the control object can be collected and displayed, so that a user can conveniently master the running state of the equipment and adjust the related parameters;
the running frequency of the fan and the opening of the fresh air valve can be automatically and reasonably adjusted, the energy consumption is reduced to the maximum extent, and the purposes of energy conservation and high efficiency running are achieved.
Drawings
Fig. 1 is a schematic block diagram of the present invention;
fig. 2 is a schematic structural view of the present invention;
fig. 3 is a block diagram of an application of the present invention.
In the figure: the system comprises a programmable controller 1, an industrial control all-in-one machine 2, a cloud processor 3, a switch 4, an air supply fan 6, a fresh air valve 7, a touch screen 8, transparent glass 9, a handle 10 and a reinforcing beam 12.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description.
The embodiment shown IN fig. 1 and 2 is an air volume-variable energy-saving control cabinet, which comprises a programmable controller 1, an industrial control all-IN-one machine 2, a cloud processor 3, a switch 4, an air supply temperature sensor IN1, an air return temperature sensor IN2, an air supply carbon dioxide sensor IN3, an air return carbon dioxide sensor IN4, a fresh air carbon dioxide sensor IN5, an air supply volume sensor IN6, a fresh air volume sensor IN7 and 2 direct-current power supplies 5 for supplying power; the industrial control all-in-one machine and the cloud processor are electrically connected with the switch, the cloud processor is electrically connected with the programmable controller, and the programmable controller is respectively electrically connected with the air supply fan 6 and the fresh air valve 7.
The intelligent cabinet is characterized by further comprising a cabinet body and a cabinet door, wherein a touch screen 8 is arranged on the cabinet door, and the touch screen is electrically connected with the programmable controller.
The cabinet body and the cabinet door are both rectangular, and a plurality of pieces of transparent glass 9 are arranged on the cabinet door.
The cabinet body and the cabinet door are respectively provided with a handle 10, and the programmable controller, the industrial control all-in-one machine, the cloud processor and the switch are all positioned in the cabinet body.
The cabinet body also comprises a wire slot. The upper end of the cabinet body is provided with 2 reinforcing beams 12.
As shown in fig. 3, the working process of the present invention is as follows:
the utility model has the application occasions of a fresh air pipeline, a return air pipeline, an air supply pipeline and a control area of an air conditioner; the air supply temperature sensor IN1, the air supply carbon dioxide sensor IN3 and the air supply volume sensor IN6 are all positioned IN the air supply pipeline; the return air temperature sensor IN2 and the return air carbon dioxide sensor IN4 are both positioned IN a return air pipeline, and the fresh air carbon dioxide sensor IN5 and the fresh air volume sensor IN7 are both positioned IN a fresh air pipeline;
the programmable controller calculates the fresh air volume L according to the following formulaOA：
LOA＝(CRA-CSA/CRA-COA)*LSA
Wherein L isSAFor the amount of air supplied, COAIs the concentration of fresh carbon dioxide CO2-C，CRAFor return air carbon dioxide concentration CO2-A，CSAFor supplying carbon dioxide concentration CO2-B(ii) a The origin of the formula is 'fuzzy control technology and application of variable air volume air conditioner'.
The most difficult determination in the control of the fresh air is the determination of the fresh air volume, the formula is used for substituting the corresponding parameters to obtain the demand of the fresh air, and the fresh air valve is adjusted according to the obtained fresh air volume.
In the air conditioning system with variable air volume, the control of fresh air volume is one of important factors influencing the air conditioning system with variable air volume, and the quality of the fresh air volume control directly influences the quality of air in a control area and the energy consumption of the air conditioning system.
1) The fresh air volume setting is to determine the fresh air volume according to the calculation result obtained by the fresh air volume formula.
2) And if the calculated fresh air volume is larger than the actually detected fresh air volume, the opening degree of the fresh air valve is increased by the programmable controller.
If the calculated fresh air volume is smaller than the actually detected fresh air volume, the opening degree of the fresh air valve is reduced by the programmable controller;
if the calculated fresh air volume is equal to the actually detected fresh air volume, the opening degree of the fresh air valve is controlled by the programmable controller to be kept unchanged;
the programmable controller adjusts the frequency of the air supply fan according to the detection results of the air supply temperature sensor IN1 and the return air temperature sensor IN2, so that the fresh air volume quality IN the control area of the air conditioner is balanced, and the energy consumption is reduced.
The control targets of the air supply fan are as follows: the temperature difference between the air supply temperature and the air return temperature is controlled within 5 ℃.
The temperature difference is more than 5 ℃, the frequency of the air feeder is increased, the rotating speed is improved, and the air feeding quantity is increased.
The temperature difference is less than 5 ℃, the frequency of the air feeder is reduced, the rotating speed is reduced, and the air feeding quantity is reduced.
The temperature difference is equal to 5 ℃, and the current frequency of the air feeder is maintained, and the current air feeding quantity is kept.
It should be understood that the present embodiment is only for illustrating the present invention and is not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
Claims (6)
1. A variable air volume energy-saving control cabinet is characterized by comprising a programmable controller (1), an industrial control all-IN-one machine (2), a cloud processor (3), an exchanger (4), an air supply temperature sensor IN1, an air return temperature sensor IN2, an air supply carbon dioxide sensor IN3, an air return carbon dioxide sensor IN4, a fresh air carbon dioxide sensor IN5, an air supply volume sensor IN6, a fresh air volume sensor IN7 and 2 direct-current power supplies for supplying power; the industrial control all-in-one machine and the cloud processor are electrically connected with the switch, the cloud processor is electrically connected with the programmable controller, and the programmable controller is electrically connected with the air supply fan (6) and the fresh air valve (7) respectively.
2. The variable air volume energy-saving control cabinet of claim 1, further comprising a cabinet body (51) and a cabinet door (52), wherein the cabinet door is provided with a touch screen (8), and the touch screen is electrically connected with the programmable controller.
3. The variable air volume energy-saving control cabinet as claimed in claim 2, wherein the cabinet body and the cabinet door are rectangular, and a plurality of pieces of transparent glass (9) are arranged on the cabinet door.
4. The variable air volume energy-saving control cabinet as claimed in claim 2, wherein the cabinet body and the cabinet door are respectively provided with a handle (10), and the programmable controller, the industrial control all-in-one machine, the cloud processor and the switch are all positioned in the cabinet body.
5. The variable air volume energy-saving control cabinet of claim 2, wherein the cabinet body further comprises a wire slot.
6. The variable air volume energy-saving control cabinet according to claim 2, 3, 4 or 5, characterized in that a plurality of stiffening beams (12) are arranged at the upper end of the cabinet body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920891483.7U CN210425442U (en) | 2019-06-13 | 2019-06-13 | Variable air volume energy-saving control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920891483.7U CN210425442U (en) | 2019-06-13 | 2019-06-13 | Variable air volume energy-saving control cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN210425442U true CN210425442U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920891483.7U Active CN210425442U (en) | 2019-06-13 | 2019-06-13 | Variable air volume energy-saving control cabinet |
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| CN (1) | CN210425442U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375424A (en) * | 2019-06-27 | 2019-10-25 | 浙江浙大中控信息技术有限公司 | Efficient variable air rate energy-saving control cabinet and method based on intelligent fuzzy algorithm |
| CN114061111A (en) * | 2021-11-24 | 2022-02-18 | 美的集团武汉制冷设备有限公司 | Fresh air equipment control method, fresh air equipment, storage medium and device |
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2019
- 2019-06-13 CN CN201920891483.7U patent/CN210425442U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375424A (en) * | 2019-06-27 | 2019-10-25 | 浙江浙大中控信息技术有限公司 | Efficient variable air rate energy-saving control cabinet and method based on intelligent fuzzy algorithm |
| CN114061111A (en) * | 2021-11-24 | 2022-02-18 | 美的集团武汉制冷设备有限公司 | Fresh air equipment control method, fresh air equipment, storage medium and device |
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Address after: 310053 23-25, 2 building, 352 BINKANG Road, Binjiang District, Hangzhou, Zhejiang. Patentee after: Zhejiang zhongkong Information Industry Co.,Ltd. Address before: 310053 23-25, 2 building, 352 BINKANG Road, Binjiang District, Hangzhou, Zhejiang. Patentee before: ZHEJIANG SUPCON INFORMATION TECHNOLOGY Co.,Ltd. |