CN117170267A - Control method and device for machine room security, machine room and storage medium - Google Patents
Control method and device for machine room security, machine room and storage medium Download PDFInfo
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- CN117170267A CN117170267A CN202210580110.4A CN202210580110A CN117170267A CN 117170267 A CN117170267 A CN 117170267A CN 202210580110 A CN202210580110 A CN 202210580110A CN 117170267 A CN117170267 A CN 117170267A
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- 238000000034 method Methods 0.000 title claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 239000003507 refrigerant Substances 0.000 claims abstract description 44
- 238000001514 detection method Methods 0.000 claims description 22
- 238000005399 mechanical ventilation Methods 0.000 claims description 14
- 230000006870 function Effects 0.000 claims description 13
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 238000011217 control strategy Methods 0.000 abstract description 4
- 238000005057 refrigeration Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 14
- 238000004891 communication Methods 0.000 description 8
- 238000004378 air conditioning Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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Abstract
The application relates to the technical field of refrigeration, and discloses a control method for machine room safety, which comprises the following steps: detecting the concentration of a refrigerant in a water chilling unit to obtain a first concentration value d 1 The method comprises the steps of carrying out a first treatment on the surface of the Detecting the concentration of the refrigerant in the machine room environment to obtain a second concentration value d 2 The method comprises the steps of carrying out a first treatment on the surface of the According to d under the condition that both the water chilling unit and other electrical equipment are powered off 1 And d 2 Controlling the power-on start of the water chilling unit and other electrical equipment, and/or according to d under the condition that the water chilling unit and other electrical equipment are electrified 1 Or d 2 And controlling the operation of the water chilling unit and other electrical equipment. Compared with the scheme that the running states of the machine set and other equipment are not considered in the related art, and only a single sensor is arranged, the method and the device refine the safety control strategy for the machine room under different conditions by combining the actual working state and the concentration value of multiple environments, so that the safety of monitoring the machine room is improved. The application also discloses a control device, electronic equipment and a storage medium for machine room safety.
Description
Technical Field
The application relates to the technical field of refrigeration, in particular to a control method and device for machine room safety, a machine room and a storage medium.
Background
Currently, there are various types of environmentally friendly refrigerants in air conditioning equipment. But some refrigerants are inherently slightly flammable, safety is a primary concern for units employing such refrigerants. In particular to a water-cooling cold water central air conditioning unit, the filling amount of the refrigerant is more (hundreds of kilograms), and how to control the safe operation of the unit is important.
In the related art, when the leakage concentration of the refrigerant is increased and reaches an alarm value, an out-of-machine room alarm host machine sends out an audible and visual alarm prompt. Meanwhile, the air exhaust equipment is linked, so that alarming and timely processing are achieved.
However, in the related art, only the high concentration of the refrigerant is detected to alarm and exhaust, and analysis is not performed specifically according to the actual situation of the water chilling unit, so that the safety management of the machine room is not deep enough, and the safety is not high.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.
The embodiment of the disclosure provides a control method, a control device, a machine room and a storage medium for machine room safety, so as to improve the safety of machine room monitoring.
In some embodiments, a control method for machine room security includes: detecting the concentration of a refrigerant in a water chilling unit to obtain a first concentration value d 1 The method comprises the steps of carrying out a first treatment on the surface of the Detecting the concentration of the refrigerant in the machine room environment to obtain a second concentration value d 2 The method comprises the steps of carrying out a first treatment on the surface of the According to d under the condition that both the water chilling unit and other electrical equipment are powered off 1 And d 2 Controlling the power-on start of the water chilling unit and other electrical equipment, and/or according to d under the condition that the water chilling unit and other electrical equipment are electrified 1 Or d 2 And controlling the operation of the water chilling unit and other electrical equipment.
Optionally, in the above technical solution, the control method for machine room security further includes:
determining a first concentration threshold D according to an input instruction of a user 1 And a second concentration threshold D 2 ；
Wherein D is 1 <D 2 。
Optionally, in the above technical solution, according to d, in case both the water chiller and other electrical devices are powered off 1 And d 2 The power-on start of the water chilling unit and other electrical equipment is controlled, which comprises the following steps:
at d 1 <D 1 And d 2 <D 1 Under the condition of (1), controlling the states of the water chilling unit and other electrical equipment to be operable states so as to be electrified and started when a startup instruction is received;
at d 1 ≥D 1 Or d 2 ≥D 1 Under the condition of (1), controlling the state of the water chilling unit and other electrical equipment to be an inoperable state and according to d 1 And d 2 And executing a preset operation.
Optionally, in the above technical solution, according to d 1 And d 2 Performing a preset operation, including:
at D 1 ≤d 1 ≤D 2 And d 2 ≤D 2 Or, at D 1 ≤d 2 ≤D 2 And d 1 ≤D 2 In the case of (2), the mechanical ventilation function is started;
at d 1 ＞D 2 Or d 2 ＞D 2 In the case of (2), a concentration alarm signal is issued.
Optionally, in the above technical solution, according to d when both the water chiller and other electrical devices are powered on 1 Or d 2 Controlling operation of the chiller and other electrical devices, comprising:
at D 1 ≤d 1 ≤D 2 And d 2 ≤D 2 In the case of (C), or in D 1 ≤d 2 ≤D 2 And d 1 ≤D 2 Under the condition of (1), controlling the water chilling unit to perform load shedding operation;
at d 1 ＞D 2 Or d 2 ＞D 2 Under the condition of the control system, the water chilling unit and other electrical equipment are controlled to be powered off, and the mechanical ventilation function is started.
Optionally, in any of the foregoing solutions, the control method for machine room security further includes:
fault detection is performed for the first sensor and the second sensor.
Optionally, in the above technical solution, if a fault is detected in the first sensor or the second sensor, a fault signal is sent to prompt the user to overhaul.
In some embodiments, a control device for machine room security includes: the computer system comprises a processor and a memory storing program instructions, wherein the processor is configured to execute the control method for computer room safety when the program instructions are executed.
In some embodiments, the machine room comprises: a water chiller and other electrical equipment;
the master control device is used for controlling the running or stopping of equipment in the machine room;
the first sensor is arranged in the water chilling unit and is electrically connected with the water chilling unit and used for detecting the concentration of the refrigerant in the water chilling unit;
the second sensor is arranged in a set range around the water chilling unit, is electrically connected with the master control device and is used for detecting the concentration of the refrigerant in the machine room environment;
the alarm system is used for sending alarm information;
the ventilation system is used for mechanically ventilating the machine room;
the control device for machine room safety is as described above.
The control method, the device, the machine room and the storage medium for machine room safety provided by the embodiment of the disclosure can realize the following technical effects:
embodiments of the present disclosure relate to the field of refrigeration technology. The application is provided with a sensor respectively in the machine set and outside the machine set for detecting the concentration d of the refrigerant in the machine set and the machine room environment 1 And d 2 . Further, considering the current running states of the water chilling unit and other electrical equipment, according to different working states and d 1 And d 2 The concentration value is used for controlling the running of the water chilling unit and other electrical equipment. Compared with the scheme that the running states of the machine set and other equipment are not considered in the related art, and only a single sensor is arranged, the method and the device refine the safety control strategy for the machine room under different conditions by combining the actual working state and the concentration value of multiple environments, so that the safety of monitoring the machine room is improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:
fig. 1 is a schematic diagram of a control method for machine room security provided by an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of another control method for machine room security provided by an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of another control method for machine room security provided by an embodiment of the present disclosure;
fig. 4 is a schematic diagram of another control method for machine room security provided by an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of a control device for machine room security provided by an embodiment of the present disclosure;
fig. 6 is a schematic diagram of a machine room provided in an embodiment of the disclosure.
Detailed Description
So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
In a machine room chiller plant of an air conditioning apparatus, a plurality of types of refrigerant are filled. These refrigerants have a slight flammability, and when the concentration is too high, they are easily combined with electric sparks in a machine room to generate combustion, even explosion accidents. In the related machine room safety scheme, the detection of the over-high concentration value is usually only for common sense, so that the concentration is required to be reduced by exhausting air, or people are informed of timely treatment by alarming. The method for controlling the concentration of the refrigerant in the machine room is not formulated for the too high concentration of the refrigerant in the machine unit, and the safety and the reliability of the machine room cannot be ensured.
In fact, currently, for refrigerants commonly used in air-conditioning apparatuses, such as R1234ze (E), more and more are used for air-conditioning apparatuses due to the performance of GWP (global warming potential) =1. However, these refrigerants are often inherently flammable, so safety is a primary concern for units employing such refrigerants. In particular to a water-cooling cold water central air conditioning unit, the filling amount of the refrigerant is more, and most of the refrigerant exceeds hundreds of kilograms. Whereas for combustible gases, three conditions are required for combustion: the concentrations of ignition source, oxygen and combustibles need to be to some extent. For the chiller, it is installed in a dedicated machine room, and it is impossible to be in a vacuum state or to fill inert gas. And ignition sources often originate from electrical equipment-generated sparks. Therefore, the detection of the concentration of the refrigerant becomes an important point for the safety management of the machine room.
Therefore, the application provides a control method and device for machine room safety, a machine room and a storage medium. The machine room includes a chiller 601 and other electrical devices 602, and a first sensor 603 for detecting a concentration of refrigerant in the chiller 601 and a second sensor 604 for detecting a concentration of refrigerant in an environment of the machine room, as shown in fig. 5 and 6. In addition, the machine room also comprises a ventilation system 605 for mechanical ventilation, a general control device 606 for controlling the machine room chiller and the electrical equipment, an alarm system 607 for giving message prompts and a control device 608 for machine room safety.
Among other things, the control means 608 for machine room security comprises a processor (processor) 500 and a memory (memory) 501. Optionally, the apparatus may further comprise a communication interface (Communication Interface) 502 and a bus 503. The processor 500, the communication interface 502, and the memory 501 may communicate with each other via the bus 503. The communication interface 502 may be used for information transfer. The processor 500 may call logic instructions in the memory 501 to execute a control method for machine room security.
Referring to fig. 1, an embodiment of the disclosure provides a control method for machine room security, including:
s101, detecting the concentration of the refrigerant in the water chilling unit by the control device to obtain a first concentration value d 1 。
S102, detecting the concentration of the refrigerant in the machine room environment by the control device to obtain a second concentration value d 2 。
S103, the control device controls the power-on starting of the water chilling unit and other electrical equipment according to d1 and d2 under the condition that the water chilling unit and other electrical equipment are powered off, and/or controls the power-on starting of the water chilling unit and other electrical equipment according to d under the condition that the water chilling unit and other electrical equipment are powered on 1 Or d 2 And controlling the operation of the water chilling unit and other electrical equipment.
By adopting the control method for machine room safety provided by the embodiment of the disclosure, firstly, one sensor is respectively arranged in and outside the machine unit and is respectively used for detecting the concentration d of the refrigerant in the machine unit and the environment of the machine room 1 And d 2 . Further, considering the current running states of the water chilling unit and other electrical equipment, according to different working states and d 1 And d 2 The concentration value is used for controlling the running of the water chilling unit and other electrical equipment. Compared with the scheme that the running states of the machine set and other equipment are not considered in the related art, and only a single sensor is arranged, the method and the device refine the safety control strategy for the machine room under different conditions by combining the actual working state and the concentration value of multiple environments, so that the safety of monitoring the machine room is improved.
Optionally, the application is provided with a sensor in the unit and a sensor outside the unit for detecting the concentration d of the refrigerant in the unit and the environment of the machine room respectively 1 And d 2 Two concentration thresholds are also set. Includes a first concentration threshold D 1 And a second concentration threshold D 2 Wherein D is 1 <D 2 . The two concentration thresholds are mainly used for distinguishing an early warning stage and an alarm stage, namely, the current environmental concentration is an early warning stage between the first concentration threshold and the second concentration threshold, and the alarm stage is entered when the current environmental concentration is larger than the second concentration threshold. The first concentration threshold value D 1 And a second concentration threshold D 2 And can also be understood as an early warning value and an alarm value. Through setting up early warning value and alarm value, can combine the actual conditions of current concentration more to the monitoring of refrigerant concentration more rigorously. Of course, more thresholds can be set to divide multiple stages, so that the monitoring of the concentration of the refrigerant is more strict, and safety control of a machine room under different concentration values can be thinned. Here, the lower limit of the flammable concentration of R1234ze (E) is 16000ppm, and when the concentration exceeds this, combustion occurs while satisfying the combustion conditions. The early warning value and the alarm value are far lower than the lower limit of the concentration of the combustible, the methodCase D 1 ＝150ppm，D 2 Let us describe an example of 500 ppm.
Optionally, as shown in connection with fig. 2, a schematic diagram of another control method for machine room security is provided.
S201, the control device detects the concentration of the refrigerant in the water chilling unit to obtain a first concentration value d 1 。
S202, the control device detects the concentration of the refrigerant in the machine room environment to obtain a second concentration value d 2 。
S203, the control device judges whether the water chilling unit and other electrical equipment are in a power-off state at present.
S2041, when the control device is in a power-off state of the water chilling unit and other electrical equipment, d 1 <D 1 And d 2 <D 1 In the case of (1), the state of the water chiller and other electrical equipment is controlled to be an operable state.
S2042, when the control device is in a power-off state of the water chilling unit and other electrical equipment, in D 1 ≤d 1 ≤D 2 And d 2 ≤D 2 Or, at D 1 ≤d 2 ≤D 2 And d 1 ≤D 2 Under the condition of (1), controlling the state of the water chilling unit and other electrical equipment to be in an inoperable state, and starting a mechanical ventilation function.
S2043, when the control device is in a power-off state of the water chilling unit and other electrical equipment, d 1 ＞D 2 Or d 2 ＞D 2 Under the condition of (1), controlling the states of the water chilling unit and other electrical equipment to be non-operational states, and sending out concentration alarm signals.
S2051, when the control device is in the power-on state of the water chilling unit and other electrical equipment, d 1 ＜D 2 And d 2 ＜D 2 Under the condition of (1), the water chilling unit and other electrical equipment can safely operate.
S2052, when the control device is in the power-on state of the water chilling unit and other electrical equipment, the control device is in the D state 1 ≤d 1 ≤D 2 And d 2 ≤D 2 In the case of (C), or in D 1 ≤d 2 ≤D 2 And d 1 ≤D 2 And (3) controlling the water chilling unit to perform load shedding operation.
S2053, when the control device is in the power-on state of the water chilling unit and other electrical equipment, d 1 ＞D 2 Or d 2 ＞D 2 Under the condition of the control system, the water chilling unit and other electrical equipment are controlled to be powered off, and the mechanical ventilation function is started.
In the scheme, under the condition that both the water chilling unit and other electrical equipment are powered off, how to control the power-on starting of the water chilling unit and other electrical equipment according to the relation between the detection value and the preset value is described. As can be seen from step S2041, the power-on start can be performed only if both the first sensor concentration value set in the water chiller and the second sensor concentration value in the machine room environment are smaller than the first concentration threshold value. As in the application D 1 ＝150ppm，D 2 For example, if the first sensor concentration value and the second sensor concentration value are detected to be less than 150ppm, the power-on start-up is performed.
If either one of the detected concentration values is greater than or equal to the first concentration threshold value, the operation state cannot be entered. In D 1 ＝150ppm，D 2 For example, =500 ppm, if one of the first sensor concentration value and the second sensor concentration value is detected to be greater than or equal to 150ppm of the first concentration threshold value, or both are greater than or equal to 150ppm of the first concentration threshold value, the chiller cannot be put into operation. Further, if only the concentration value detected by a certain sensor is between the early warning value and the alarm value, or both the detected values are between the early warning value and the alarm value, the mechanical ventilation function needs to be turned on to reduce the concentration of the refrigerant in the corresponding environment, as in step S2042. If the detected concentration value is greater than the alarm value, i.e. one of the first sensor concentration value and the second sensor concentration value is greater than the second concentration threshold value 500ppm, or both are greater than the second concentration threshold value 500ppm, as in step S2043, a concentration alarm signal needs to be sent to inform personnel that the current ambient refrigerant concentration is too high, and maintenance and repair are needed. By arranging sensors in different environments and dividing them during the start-up phaseThe current processing mode which is needed to be selected by the detection concentration is considered in the stage, so that the safety of the starting stage is ensured.
In addition, in this technical scheme, a description is given of how the water chiller and other electrical devices are controlled to operate according to the relation between the detected value and the preset value, in the case where both the water chiller and other electrical devices are operating. In D 1 ＝150ppm，D 2 For example, =500 ppm, the sensor is also required to monitor the refrigerant concentration in the environment in real time during the run phase, regardless of the detection value d of the first sensor 1 Or the detection value d of the second sensor 2 Should be less than 150ppm of the first concentration threshold, i.e. less than the pre-warning value. When one of the sensor detection values is between the early warning value and the alarm value or both detection values are between the early warning value and the alarm value, the detection values are in the range of 150ppm-500 ppm. In step S2052, the chiller needs to be controlled to perform load shedding operation at this time, and concentration variation is continuously monitored. The method is used for avoiding impact on the compressor during emergency shutdown of the unit and avoiding damage to the compressor. If the detected value continues to rise by more than 500ppm, as in step S2053, then it is necessary to control the chiller and other electrical equipment to power down and turn on the mechanical ventilation function. In the operation stage, the sensors are arranged in different environments, and the processing mode which is needed to be selected by the current detection concentration is considered in stages, so that the safety of the operation stage is ensured.
In connection with fig. 3, a schematic diagram of another control method for machine room security is given. In fig. 3, in combination with the actual situation, it may be adopted to determine whether the concentration value in the machine room environment meets the requirement first, and then determine whether the concentration value in the machine set environment meets the requirement. I.e. first determining the detection value d of the second sensor 2 Then judging the detection value d of the first sensor 1 . The control method for machine room safety in fig. 3 includes:
s301, the control device judges d 2 Whether or not it is smaller than D 1 。
S302, the control device controls the electrical equipment in the machine room to be electrified.
S303, the control device judges d 1 Whether or not to useLess than D 1 。
S304, the control device controls the water chilling unit to start.
S305, the control device judges d 2 Whether or not it is smaller than D 2 。
S306, the control device starts an alarm system to perform alarm investigation.
S307, the control device starts mechanical ventilation and reduces the concentration of combustible substances in the machine room.
S308, the control device starts mechanical ventilation to reduce the concentration of combustible substances in the unit.
In this scheme, first, S301 is entered, and the detection value d of the second sensor for detecting the machine room environment is calculated 2 Judging whether it is smaller than the pre-warning value D 1 If so, the process proceeds to S302, and the electrical equipment in the machine room can be controlled to be electrified. If not, go to S305, need to be specific to d 2 Make a judgment as to whether it is smaller than the alarm value D 2 . If not, the current condition that the concentration of combustible matters in the machine room is too high is indicated, S306 is entered, and alarm check is needed; if not, S307 is entered, the mechanical ventilation is started to reduce the concentration of combustible in the machine room.
After the electrical equipment in the machine room is electrified, the method proceeds to S303, and the detection value d of the first sensor for detecting the machine set environment needs to be judged 1 Judging whether it is smaller than the pre-warning value D 1 . If yes, S304 is entered, and the water chilling unit is controlled to start. Or can be in an operational state, and is started after receiving a user instruction. If not, S308 is performed, the mechanical ventilation is required to be started to reduce the concentration of combustible in the unit, and then S303 is performed again for judgment. It should be noted that in the case of pair d 1 Make the judgment without judging d again 1 Whether or not it is smaller than the alarm value D 2 . The reason for this is that in practice the difference between the detection values of the two concentration sensors is generally not too large, and therefore at d 2 Has been smaller than the pre-warning value D 1 In case d 1 Above alarm value D 2 The step is not shown in the figure, but may equally well be provided in the application. By the detection value d of the second sensor of the machine room environment 2 And detection of a first sensor of the unit environmentValue d 1 The step detection enables the starting of the electrical equipment and the starting of the unit to be carried out separately, thereby being more beneficial to guaranteeing the running safety of the unit.
Optionally, the control method for machine room security further includes: and detecting faults of the first sensor and the second sensor, and if the first sensor or the second sensor is detected to have faults, sending out fault signals to prompt a user to overhaul.
Referring to fig. 4, another schematic diagram of a control method for machine room security according to an embodiment of the present disclosure includes:
s401, judging whether a first sensor or a second sensor has a fault. If yes, the process advances to S4021, and if no, the process advances to S4022.
S4021, sending out a fault signal to prompt a user to overhaul.
S4022, detecting the concentration of the refrigerant in the water chilling unit and the concentration of the refrigerant in the machine room environment to obtain a first concentration value d 1 And a second concentration value d 2 。
S403, the control device is used for controlling the water chilling unit and other electrical equipment to be powered off according to d 1 And d 2 Controlling the power-on start of the water chilling unit and other electrical equipment, and/or according to d under the condition that the water chilling unit and other electrical equipment are electrified 1 Or d 2 And controlling the operation of the water chilling unit and other electrical equipment.
In the technical scheme, the method also comprises the step of monitoring whether the sensor has faults in real time. Because the detection values of the sensors are all based on the schemes, the accuracy of the concentration values detected by the sensors is critical to the schemes. If one of the sensors fails, a fault signal needs to be sent to prompt the user to overhaul and replace. Thereby ensuring the accuracy and reliability of acquiring the concentration value data.
Further, regarding the method of controlling the machine room safety according to the detected concentration value in step S403, the above-described control method for the machine room safety as in fig. 1 to 3 may be adopted. As shown in table 1, the control strategy of the machine room safety according to different situations is combined with fig. 1 to 3.
TABLE 1
It should be noted that the critical value in the present application is not necessarily limited to a certain condition. I.e. in accordance with the application D 1 ＝150ppm，D 2 For example, =500 ppm, the detection value d of a certain sensor is detected during the start-up phase 1 Or d 2 When the value is exactly equal to 150ppm, the early warning value is not exceeded, so that the equipment can be safely started; and the concentration of the water is considered to exceed the early warning value, so that the water cannot run and mechanical ventilation treatment is required. How the case of a specific threshold value is decided can be chosen by the user, but in case the detected value is equal to the threshold value, the concentration value should be considered to have reached the early warning or alarm stage for safety reasons.
As shown in connection with fig. 5, an embodiment of the present disclosure provides a control apparatus for machine room security, including a processor (processor) 500 and a memory (memory) 501. Optionally, the apparatus may further comprise a communication interface (Communication Interface) 502 and a bus 503. The processor 500, the communication interface 502, and the memory 501 may communicate with each other via the bus 503. The communication interface 502 may be used for information transfer. The processor 500 may call logic instructions in the memory 501 to perform the control method for machine room security of the above-described embodiments.
Further, the logic instructions in the memory 501 may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product.
The memory 501 is used as a storage medium for storing a software program, a computer executable program, and program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 500 executes the functional applications and data processing by running the program instructions/modules stored in the memory 501, i.e. implements the control method for machine room security in the above-described embodiments.
Memory 501 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for functionality; the storage data area may store data created according to the use of the terminal device, etc. Further, the memory 501 may include a high-speed random access memory, and may also include a nonvolatile memory.
The disclosed embodiments provide a storage medium storing computer executable instructions configured to perform the above-described control method for machine room security.
The storage medium may be a transitory computer readable storage medium or a non-transitory computer readable storage medium. A non-transitory storage medium comprising: a plurality of media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or a transitory storage medium.
The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this disclosure is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in the present disclosure, the terms "comprises," "comprising," and/or variations thereof, mean that the recited features, integers, steps, operations, elements, and/or components are present, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.
Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (10)
1. The control method for the safety of the machine room is characterized in that the water chilling unit is provided with a first sensor for detecting the concentration of the refrigerant in the water chilling unit, and a second sensor for detecting the concentration of the refrigerant in the environment of the machine room is arranged in a set range around the water chilling unit; the control method comprises the following steps:
detecting the concentration of a refrigerant in a water chilling unit to obtain a first concentration value d 1 ；
Detecting the concentration of the refrigerant in the machine room environment to obtain a second concentration value d 2 ；
According to d under the condition that both the water chilling unit and other electrical equipment are powered off 1 And d 2 Controlling the power-on start of the water chilling unit and other electrical equipment, and/or according to d under the condition that the water chilling unit and other electrical equipment are electrified 1 Or d 2 And controlling the operation of the water chilling unit and other electrical equipment.
2. The method as recited in claim 1, further comprising:
determining a first concentration threshold D according to an input instruction of a user 1 And a second concentration threshold D 2 ；
Wherein D is 1 <D 2 。
3. The method according to claim 2, wherein the method is according to d in case both the water chiller and other electrical equipment are powered down 1 And d 2 The power-on start of the water chilling unit and other electrical equipment is controlled, which comprises the following steps:
at d 1 <D 1 And d 2 <D 1 Under the condition of (1), controlling the states of the water chilling unit and other electrical equipment to be operable states so as to be electrified and started when a startup instruction is received;
at d 1 ≥D 1 Or d 2 ≥D 1 Under the condition of (1), controlling the state of the water chilling unit and other electrical equipment to be an inoperable state, and according to d 1 And d 2 And executing a preset operation.
4. A method according to claim 3, characterized in that according to d 1 And d 2 Performing a preset operation, including:
at D 1 ≤d 1 ≤D 2 And d 2 ≤D 2 Or, at D 1 ≤d 2 ≤D 2 And d 1 ≤D 2 In the case of (2), the mechanical ventilation function is started;
at d 1 ＞D 2 Or d 2 ＞D 2 In the case of (2), a concentration alarm signal is issued.
5. The method according to claim 2, wherein the method is according to d when both the water chiller and other electrical equipment are energized 1 Or d 2 Controlling operation of the chiller and other electrical devices, comprising:
at D 1 ≤d 1 ≤D 2 And d 2 ≤D 2 In the case of (C), or in D 1 ≤d 2 ≤D 2 And d 1 ≤D 2 Under the condition of (1), controlling the water chilling unit to perform load shedding operation;
at d 1 ＞D 2 Or d 2 ＞D 2 And under the condition of the control system, the water chilling unit and other electrical equipment are controlled to be powered off, and a mechanical ventilation function is started.
6. The method according to any one of claims 1 to 5, further comprising:
and performing fault detection on the first sensor and the second sensor.
7. The method of claim 6, wherein the step of providing the first layer comprises,
if the first sensor or the second sensor is detected to have faults, a fault signal is sent to prompt a user to overhaul.
8. A control device for machine room security, comprising a processor and a memory storing program instructions, characterized in that the processor is configured to execute the control method for machine room security according to any one of claims 1 to 7 when running the program instructions.
9. A machine room, comprising:
a water chiller and other electrical equipment;
the master control device is used for controlling the running or stopping of the equipment in the machine room;
the first sensor is arranged in the water chilling unit and is electrically connected with the water chilling unit and used for detecting the concentration of the refrigerant in the water chilling unit;
the second sensor is arranged in a set range around the water chilling unit, is electrically connected with the master control device and is used for detecting the concentration of the refrigerant in the machine room environment;
the alarm system is used for sending alarm information;
the ventilation system is used for mechanically ventilating the machine room;
a control device for machine room security as claimed in claim 8.
10. A storage medium storing program instructions which, when run, perform the control method for machine room security of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210580110.4A CN117170267A (en) | 2022-05-26 | 2022-05-26 | Control method and device for machine room security, machine room and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210580110.4A CN117170267A (en) | 2022-05-26 | 2022-05-26 | Control method and device for machine room security, machine room and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117170267A true CN117170267A (en) | 2023-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210580110.4A Pending CN117170267A (en) | 2022-05-26 | 2022-05-26 | Control method and device for machine room security, machine room and storage medium |
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| Country | Link |
|---|---|
| CN (1) | CN117170267A (en) |
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2022
- 2022-05-26 CN CN202210580110.4A patent/CN117170267A/en active Pending
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