CN113438863A - Cold and hot channel isolation energy-saving regulation and control system and method of door curtain type device - Google Patents
Cold and hot channel isolation energy-saving regulation and control system and method of door curtain type device Download PDFInfo
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- CN113438863A CN113438863A CN202110696605.9A CN202110696605A CN113438863A CN 113438863 A CN113438863 A CN 113438863A CN 202110696605 A CN202110696605 A CN 202110696605A CN 113438863 A CN113438863 A CN 113438863A
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- 238000002955 isolation Methods 0.000 title claims abstract description 33
- 230000033228 biological regulation Effects 0.000 title claims abstract description 30
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 238000004378 air conditioning Methods 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 12
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- 239000004576 sand Substances 0.000 claims description 2
- 230000009123 feedback regulation Effects 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 5
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- 230000017525 heat dissipation Effects 0.000 abstract description 3
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
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- H—ELECTRICITY
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
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Abstract
The invention discloses a cold and hot channel isolation energy-saving regulation and control system and a method of a door curtain type device, wherein the system comprises the door curtain type device, a frequency converter, a temperature and humidity transmitter, a data acquisition gateway and a controller; the method comprises the steps of sealing a cold channel, setting a temperature measuring point and a frequency converter, and performing feedback regulation on the temperature to finally improve the environmental temperature state of the machine room. According to the invention, the door curtain type devices are arranged at two ends of the cold channel of the machine room, so that the cold channel and the hot channel are isolated, the cold air and the hot air are prevented from being mixed, the airflow organization of the machine room is optimized, the energy consumption of the air conditioner air cabinet is reduced, and the utilization rate of cooling capacity is effectively improved. The invention also provides a refined measure for controlling the temperature of the machine room in an energy-saving feedback manner, wherein the temperature and humidity transmitters are arranged on the frames, the temperature and humidity data are collected in real time, the air supply quantity is changed by feedback adjustment of the opening degree of the electric water quantity valve and the operation condition of the air-conditioning air cabinet, and the operation state of the air-conditioning air cabinet can be controlled according to the real-time heat dissipation condition of the machine room.
Description
Technical Field
The invention belongs to the technical field of feedback energy conservation of a data center machine room based on cold and hot channel isolation, and particularly relates to a cold and hot channel isolation energy-saving regulation and control system and method of a door curtain type device.
Background
At present, a large number of early-built data centers exist in China, most of machine rooms of the data centers adopt an upward air supply mode, and cold and hot channel isolation measures are not adopted in the machine rooms. The machine room mainly has the following problems that firstly, the data center machine room does not adopt a cold and hot channel isolation measure, so that cold and hot air in the machine room is easy to mix, the air flow organization is disordered, and a local hot spot phenomenon exists; secondly, the air flow organization of the machine room is not optimized, so that the energy consumption of the air cabinet is increased, because more cold energy is needed to balance local hot spots in the machine room, the IT equipment of the machine room is in a normal operation state; thirdly, the control measures of the machine room are single, a refined energy-saving feedback control technology is lacked, and the operation state of the air-conditioning air cabinet cannot be controlled according to the real-time heat dissipation condition of the machine room. Therefore, there is a need for a targeted cold and hot aisle isolation based feedback regulation system and method.
Disclosure of Invention
The invention mainly aims to overcome the defects of the prior art and provide a cold and hot channel isolation energy-saving regulation and control system and method of a door curtain type device.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a cold and hot channel isolation energy-saving regulation and control system of a door curtain type device, which comprises the door curtain type device, a frequency converter, a temperature and humidity transmitter, a data acquisition gateway and a controller, wherein the door curtain type device comprises a door curtain type cold and hot channel isolation energy-saving regulation and control system;
the door curtain type devices are arranged on two sides of each cold channel of the machine room and used for sealing the cold channels;
the frequency converter is arranged in the air-conditioning air cabinet and is used for changing the operation frequency of the air-conditioning air cabinet;
the temperature and humidity transmitter is arranged on each frame of the channel and used for acquiring temperature and humidity data of each channel in real time;
the data acquisition gateway receives temperature and humidity data acquired by the temperature and humidity transmitter and feeds the temperature and humidity data back to the controller;
the controller is used for controlling an electric water volume valve and an air cabinet actuator of the air conditioner air cabinet so as to adjust the cooling capacity and the temperature of the machine room.
Preferably, the door curtain device comprises a door curtain main body and a cross bar component, wherein the middle part of the door curtain main body is opened and closed; the door curtain type main body is fixed on two sides of the cold channel through a cross rod frame component arranged above the door curtain type main body.
As a preferred technical scheme, the door curtain device further comprises a magnetic attraction component; the magnetic attraction component is arranged at the connecting part of the outer side frame of the door curtain type main body and the cabinet and the middle opening and closing edge.
As a preferred technical solution, the door curtain device further comprises a transparent window; the transparent window is arranged in the middle of two sides of the door curtain type main body which is opened and closed.
As an optimal technical scheme, the temperature and humidity transmitter transmits the acquired temperature and humidity data to the data acquisition gateway through an RS-485 bus.
According to a preferable technical scheme, the controller is a PLC device and sends instructions to the electric water quantity valve and the air cabinet actuator in a wired or wireless mode.
The invention also provides a cold and hot channel isolation energy-saving regulation and control method of the door curtain device, which is applied to the cold and hot channel isolation energy-saving regulation and control system of the door curtain device and comprises the following steps:
the door curtain type device is arranged on two sides of each cold channel of the machine room to seal the cold channels, so that the air flow organization state of the machine room is improved;
additionally installing a frequency converter on the air-conditioning air cabinet, and arranging a temperature and humidity transmitter on each rack of the channel;
temperature early warning upper limit value T is set for cold channel and hot channelc,s、Th,sAnd temperature early warning lower limit value Tc,x、 Th,x；
Collecting temperature data of cold channel and hot channel of machine room in real time and recording the data as Tc,0、Th,0；
The data acquisition gateway receives temperature data acquired by the temperature and humidity transmitter and feeds the temperature data back to the controller;
the controller sends an instruction to an electric water flow valve and an air cabinet actuator of the air conditioner air cabinet according to the feedback, and the electric water flow valve and the air cabinet operation number and frequency are adjusted in a follow-up mode, so that the cooling capacity is adjusted, and the temperature of the machine room is controlled.
As a preferred technical scheme, the controller sends an instruction to an electric water quantity valve and an air cabinet actuator of an air conditioner air cabinet according to feedback, and adjusts the number and frequency of the electric water quantity valve and the air cabinet in a follow-up manner, so as to adjust the cooling capacity, and the control of the temperature of the machine room specifically comprises the following steps:
if the real-time temperature is greater than or equal to the set temperature early warning upper limit value, namely Tc,0≥Tc,sOr Th,0≥Th,sExecuting a cooling capacity increase control flow;
if the real-time temperature is less than the set temperature early warning lower limit value, namely Tc,0＜Tc,xOr Th,0＜Th,xThen, the cooling amount reduction control flow is executed.
As a preferable technical solution, the cooling capacity increase control process specifically includes:
increasing the opening of the electric water valve according to the step length;
judging whether the opening of the electric water valve reaches an early warning temperature upper limit value: if not, acquiring the real-time temperature again and judging the size relation with the temperature early warning upper limit value; if so, increasing the operation frequency of the wind cabinet according to the step length;
judging whether the operating frequency of the air cabinet reaches an upper limit value of the early warning temperature: if not, acquiring the real-time temperature again and judging the size relation with the temperature early warning upper limit value; if so, increasing the number of the running wind cabinets;
and (6) ending.
As a preferred technical solution, the cooling capacity reduction control process specifically includes:
reducing the operation frequency of the air cabinet according to the step length;
judging whether the operation frequency of the air cabinet reaches the lower limit value of the early warning temperature: if so, increasing the operation frequency of the wind cabinet according to the step length; if not, acquiring the real-time temperature again and judging the size relation with the temperature early warning lower limit value;
judging whether the opening of the electric water valve reaches the lower limit value of the early warning temperature: if so, reducing the number of the running air cabinets; if not, acquiring the real-time temperature again and judging the size relation with the temperature early warning lower limit value;
and (6) ending.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the cold and hot channel isolation energy-saving regulation and control method provided by the invention provides a specific cold and hot channel isolation method for an old machine room lacking cold and hot channel isolation measures, realizes cold and hot channel isolation by arranging the door curtain type devices at two ends of the cold channel of the machine room, avoids the phenomenon that cold and hot air are mixed, airflow organization is disordered and has local hot spots, and optimizes the airflow organization state of the old machine room.
(2) The invention provides a refined measure for regulating and controlling the temperature of a machine room through temperature energy-saving feedback, wherein temperature and humidity transmitters are arranged on each rack, temperature and humidity data are collected in real time, and the air supply amount is changed by feedback regulation of the opening degree of an electric water amount valve and the operation condition of an air conditioner air cabinet, so that the cooling capacity of the machine room meets the requirement of the current machine room, the operation state of the air conditioner air cabinet can be controlled according to the real-time heat dissipation condition of the machine room, the energy consumption of the air conditioner air cabinet is reduced, and the utilization rate of the cooling capacity is effectively improved.
Drawings
FIG. 1 is a flow of a cold-hot channel isolation energy-saving regulation and control method for a data center machine room according to an embodiment of the invention;
FIG. 2 is an illustration of the effect of the door curtain cold aisle enclosure of an embodiment of the invention;
FIG. 3 is a schematic diagram of electrical connections for a temperature and humidity transmitter in accordance with an embodiment of the present invention;
FIG. 4 is a diagrammatic illustration of machine room feedback regulation control in accordance with an embodiment of the present invention;
fig. 5 is a logic diagram of the operation regulation control of the air-conditioning wind cabinet with increased cooling capacity according to the embodiment of the invention.
Fig. 6 is a logic diagram of the operation regulation control of the air-conditioning wind cabinet with reduced cooling capacity according to the embodiment of the invention.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Examples
The embodiment provides a cold and hot channel isolation energy-saving regulation and control system of a door curtain type device, which comprises the door curtain type device, a frequency converter, a temperature and humidity transmitter, a data acquisition gateway and a controller;
the door curtain type devices are hung on two sides of each cold channel of the machine room, and two ends of each cold channel are sealed, so that cold and hot channels of the machine room are isolated, and the airflow organization state of the machine room is improved;
further, the door curtain type device comprises a middle opening and closing door curtain type main body, a magnetic suction assembly, a transparent window and a cross rod frame assembly; the door curtain type main body is fixed on two sides of the cold channel through a cross rod frame component arranged above the door curtain type main body; the magnetic attraction component is arranged at the connecting part of the outer side frame of the door curtain type main body and the cabinet and the middle opening and closing edge so as to realize opening and closing and sealing and facilitate the entering and exiting; the transparent window is arranged in the middle of two sides of the door curtain type main body which are opened and closed, so that an operator can observe the operation condition of the IT equipment.
The frequency converter is arranged in the air conditioner air cabinet and used for changing the operation frequency mode of the air conditioner air cabinet and enabling the air cabinet to be in energy-saving working condition operation.
The temperature and humidity transmitter is arranged on each frame of the channel and used for acquiring temperature and humidity data of each channel in real time;
further, the temperature and humidity transmitter transmits the collected temperature and humidity data to the data collection gateway through an RS-485 bus.
The data acquisition gateway receives the temperature and humidity data acquired by the temperature and humidity transmitter and feeds the temperature and humidity data back to the controller.
The controller is used for controlling an electric water volume valve and an air cabinet actuator of the air-conditioning air cabinet, and adjusting the number and frequency of the electric water volume valve and the air cabinet in a follow-up manner, so that the cooling capacity is adjusted, and the temperature of the machine room is controlled to meet the environmental requirements of the machine room;
further, the controller is a PLC device, on one hand, receives signal transmission of an upper computer, and on the other hand, transmits a control signal to a corresponding actuating mechanism; and sending an instruction to the electric water volume valve and the air cabinet actuator in a wired or wireless mode.
In another embodiment of the application, a cold and hot channel isolation energy-saving regulation and control method of a door curtain device is provided, and an implementation process of the method is described by taking a certain data center machine room in Guangzhou as an example. The machine room has ten rows of racks, 11 channels are counted, and the air supply mode is a typical upper air supply mode; there are 5 air-conditioning wind cabinets with same performance in the wind cabinet room, and a wall is separated from the machine room, and the data center machine room belongs to an upper feeding side return type air supply and return mode.
Fig. 1 is a flowchart of a cold and hot channel isolation energy-saving regulation and control method for a data center machine room, which is implemented by a series of optimization and regulation technologies and aims to improve the environmental state of the machine room and enable the machine room to be in an energy-saving operation state. The method comprises the following steps:
s1, cold channel sealing technology, wherein a door curtain type device 3 is installed on two sides of each cold channel 1 of a machine room to seal two ends of each cold channel, a hot channel 2 is arranged between the cold channels, the effect is shown in figure 2, the device is adopted to ensure that the sealing performance of the cold channels is good, and meanwhile, workers can check the IT equipment condition conveniently through the in-out channels. In order to verify the sealing effect of the device, a typical machine room of the data center is selected for effect analysis after sealing, and the temperature data of each cold channel before and after sealing is collected. Taking the temperature box of the front and rear closed cold channels of a typical machine room as an example, compared with the temperature box of the front and rear closed cold channels of the machine room, the maximum temperature and the average temperature of each closed cold channel are reduced. Before the cold channel is sealed, the highest temperature of the cold channel in the machine room is 25 ℃, the average temperature is 20.3 ℃, the highest temperature in the channel after sealing is 23.5 ℃, the average temperature is 19.3 ℃, the temperature of the worst point in the cold channel after sealing is obviously reduced, and the average temperature of the cold channel after sealing is reduced by 1.0 ℃, which shows that the cold supply utilization rate of the sealed cold channel can be improved.
S2, adjusting the air supply port, wherein the air supply port is adjusted after the cold channel is closed, the phenomenon of uneven cooling and heating in a typical machine room still exists, and the extensive opening mode of the air supply port is not suitable for different heating value states of all racks in the machine room. Therefore, the hot channel air supply port is closed, the corresponding cold channel air supply port is adjusted according to the heat productivity of the rack, and the adjustment mode comprises opening adjustment and wind direction adjustment, so that the purpose of fully utilizing the cold supply capacity is achieved.
S3, temperature points of machine room channels are arranged, and temperature and humidity transmitters with communication functions are arranged on machine frames of the channels of the machine room, and are used for monitoring the temperature and the humidity of the environment of the machine room in real time and providing feedback adjustment parameters for an energy-saving regulation and control system. FIG. 3 shows an electrical connection diagram of a temperature and humidity transmitter, HoutSignal output terminal, T, representing humidityoutA signal output terminal for indicating temperature; and the external 24V direct-current stabilized voltage power supply is connected, the transmitter is connected to the data acquisition gateway through the RS-485 bus, and the temperature data of each channel is acquired in real time.
S4, real-time feedback adjustment and control of machine room temperature, wherein on the basis of finishing arrangement of machine room channel temperature points, the real-time temperature of the machine room is collected, and the operation condition of the air conditioner air cabinet is adjusted according to the temperature condition of the machine room in a feedback manner, so that the environment temperature state of the machine room is improved, and fig. 4 is a closed-loop control diagram for machine room feedback adjustment. The PLC controller outputs an execution signal to the air-conditioning air cabinet according to the comparison between the indoor measured temperature and the temperature early warning value, and the air-conditioning air cabinet changes the operation condition of the air-conditioning air cabinet so as to change the air supply amount and further enable the temperature of the machine room to be in a set state.
S5, an operation regulation control logic of the air-conditioning air cabinet, and a specific control logic of the air-conditioning air cabinet in feedback regulation is shown in fig. 5 and 6, and the machine room temperature feedback regulation control flow is as follows:
(1) collecting temperature data of cold channel and hot channel of machine room in real time and recording the data as Tc,0、Th,0；
(2) Judging whether the real-time temperature is greater than or equal to a set temperature early warning value, namely: t isc,0≥Tc,wOr Th,0≥Th,w(ii) a Wherein, Tc,w、Th,wRespectively setting temperature early warning values of a cold channel and a hot channel of a typical machine room; according to the corresponding requirements and standards of the environmental temperature of the machine room, the early warning values of the cold channel temperature and the hot channel temperature are set differently.
In this step, a temperature early warning upper limit value and a temperature early warning lower limit value are set. If the upper limit value is exceeded, executing a cooling capacity increase control flow; if the lower limit value is exceeded, a cooling capacity reduction control flow is executed.
(3) If yes, entering a cooling capacity increasing control flow (I); if not, entering a cooling capacity reduction control flow (II).
(I) cooling capacity increase control flow:
(4) increasing the opening of the electric water valve according to the step length;
(5) judging whether the opening of the electric water valve reaches an upper limit or not;
(6) if not, returning to the step (1);
(7) if so, increasing the operation frequency of the wind cabinet according to the step length;
(8) judging whether the operation frequency of the air cabinet reaches an upper limit or not;
(9) if not, returning to the step (1);
(10) if so, increasing the number of the running air cabinets;
(11) and (6) ending.
(II) cooling capacity reduction control flow:
(12) reducing the operation frequency of the air cabinet according to the step length;
(13) judging whether the operating frequency of the air cabinet reaches a lower limit or not;
(14) if not, go back to (1)
(15) If yes, reducing the opening of the electric water valve according to the step length;
(16) judging whether the opening of the electric water valve reaches a lower limit or not;
(17) if not, returning to the step (1);
(18) if so, reducing the number of the running air cabinets;
(19) and (6) ending.
The phenomenon of uneven cold and hot in the machine room can be relieved by adopting the steps, the utilization rate of cold energy in the machine room is improved and the requirement of cold energy in the machine room is reduced to a certain extent by applying the cold channel isolation technology, so that the energy consumption of the machine room can be reduced by adjusting the operation mode of the air cabinet. The implementation of the feedback regulation technology can improve the environmental temperature state of the machine room and ensure that the IT equipment of the machine room stably and normally operates.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. A cold and hot channel isolation energy-saving regulation and control system of a door curtain type device is characterized by comprising the door curtain type device, a frequency converter, a temperature and humidity transmitter, a data acquisition gateway and a controller;
the door curtain type devices are arranged on two sides of each cold channel of the machine room and used for sealing the cold channels;
the frequency converter is arranged in the air-conditioning air cabinet and is used for changing the operation frequency of the air-conditioning air cabinet;
the temperature and humidity transmitter is arranged on each frame of the channel and used for acquiring temperature and humidity data of each channel in real time;
the data acquisition gateway receives temperature and humidity data acquired by the temperature and humidity transmitter and feeds the temperature and humidity data back to the controller;
the controller is used for controlling an electric water volume valve and an air cabinet actuator of the air conditioner air cabinet so as to adjust the cooling capacity and the temperature of the machine room.
2. The cold-hot aisle isolation and energy conservation regulation and control system of a door curtain device as claimed in claim 1, wherein the door curtain device comprises a middle opening and closing door curtain main body and a cross bar assembly; the door curtain type main body is fixed on two sides of the cold channel through a cross rod frame component arranged above the door curtain type main body.
3. The cold-hot channel isolation energy-saving regulation and control system of a door curtain device as claimed in claim 1, wherein the door curtain device further comprises a magnetic attraction component; the magnetic attraction component is arranged at the connecting part of the outer side frame of the door curtain type main body and the cabinet and the middle opening and closing edge.
4. The cold-hot aisle isolation and energy conservation regulation and control system of a door curtain device as claimed in claim 1, wherein the door curtain device further comprises a transparent window; the transparent window is arranged in the middle of two sides of the door curtain type main body which is opened and closed.
5. The cold and hot channel isolation energy-saving regulation and control system of a door curtain device as claimed in claim 1, wherein the temperature and humidity transmitter transmits the collected temperature and humidity data to the data collection gateway through an RS-485 bus.
6. The cold and hot channel isolation energy-saving regulation and control system of a door curtain device as claimed in claim 1, wherein the controller is a PLC device, and sends commands to the electric water volume valve and the air cabinet actuator in a wired or wireless manner.
7. A cold and hot channel isolation energy-saving regulation and control method of a door curtain device, which is applied to the cold and hot channel isolation energy-saving regulation and control system of the door curtain device as claimed in any one of claims 1 to 6, and comprises the following steps:
the door curtain type device is arranged on two sides of each cold channel of the machine room to seal the cold channels, so that the air flow organization state of the machine room is improved;
additionally installing a frequency converter on the air-conditioning air cabinet, and arranging a temperature and humidity transmitter on each rack of the channel;
temperature early warning upper limit value T is set for cold channel and hot channelc,s、Th,sAnd temperature early warning lower limit value Tc,x、Th,x；
Collecting temperature data of cold channel and hot channel of machine room in real time and recording the data as Tc,0、Th,0；
The data acquisition gateway receives temperature data acquired by the temperature and humidity transmitter and feeds the temperature data back to the controller;
the controller sends an instruction to an electric water flow valve and an air cabinet actuator of the air conditioner air cabinet according to the feedback, and the electric water flow valve and the air cabinet operation number and frequency are adjusted in a follow-up mode, so that the cooling capacity is adjusted, and the temperature of the machine room is controlled.
8. The cold and hot channel isolation energy-saving regulation and control method of the door curtain device as claimed in claim 7, wherein the controller sends an instruction to an electric water valve and an air cabinet actuator of an air-conditioning air cabinet according to feedback, and the electric water valve and the number and frequency of the air cabinet operation are adjusted in a follow-up manner, so as to adjust cooling capacity, and the control of the temperature of the machine room specifically comprises:
if the real-time temperature is greater than or equal to the set temperature early warning upper limit value, namely Tc,0≥Tc,sOr Th,0≥Th,sExecuting a cooling capacity increase control flow;
if the real-time temperature is less than the set temperature early warning lower limit value, namely Tc,0＜Tc,xOr Th,0＜Th,xThen, thenThe cooling amount reduction control flow is executed.
9. The cold and hot channel isolation energy-saving regulation and control method of the door curtain device as claimed in claim 8, wherein the cold supply capacity increase control process is specifically as follows:
increasing the opening of the electric water valve according to the step length;
judging whether the opening of the electric water valve reaches an early warning temperature upper limit value: if not, acquiring the real-time temperature again and judging the size relation with the temperature early warning upper limit value; if so, increasing the operation frequency of the wind cabinet according to the step length;
judging whether the operating frequency of the air cabinet reaches an upper limit value of the early warning temperature: if not, acquiring the real-time temperature again and judging the size relation with the temperature early warning upper limit value; if so, increasing the number of the running wind cabinets;
and (6) ending.
10. The cold and hot channel isolation energy-saving regulation and control method of the door curtain device as claimed in claim 8, wherein the cold supply amount reduction control process is specifically as follows:
reducing the operation frequency of the air cabinet according to the step length;
judging whether the operation frequency of the air cabinet reaches the lower limit value of the early warning temperature: if so, increasing the operation frequency of the wind cabinet according to the step length; if not, acquiring the real-time temperature again and judging the size relation with the temperature early warning lower limit value;
judging whether the opening of the electric water valve reaches the lower limit value of the early warning temperature: if so, reducing the number of the running air cabinets; if not, acquiring the real-time temperature again and judging the size relation with the temperature early warning lower limit value;
and (6) ending.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110696605.9A CN113438863A (en) | 2021-06-23 | 2021-06-23 | Cold and hot channel isolation energy-saving regulation and control system and method of door curtain type device |
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| CN202110696605.9A CN113438863A (en) | 2021-06-23 | 2021-06-23 | Cold and hot channel isolation energy-saving regulation and control system and method of door curtain type device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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