Control method, control device and decontamination system for a decontamination system

CN117784838BActive Publication Date: 2026-09-22CHANGSHA ZOOMLION FIRE FIGHTING VEHICLE
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202311540128.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-17
Publication Date
2026-09-22
Estimated Expiration
2043-11-17

AI Technical Summary

Technical Problem

[0004]本申请实施例的目的是提供一种用于洗消系统的控制方法、控制装置、洗消系统及存储介质,用以解决现有技术中洗消系统加热缓慢、热水流量小的问题

Benefits of technology

[0028]通过上述技术方案,在第一容纳装置内的洗消介质的第一温度与加热装置的加热温度上限之间的差值大于预设温度值的情况下,控制回水控制装置打开,使得第二容纳装置中的第二温度的洗消介质在流经回水控制装置之后流入至第一容纳装置,以提高第一容纳装置中的洗消介质的温度;在第二容纳装置中的洗消介质的温度低于目标清洗温度的情况下,控制第一容纳装置中的洗消介质从第一容纳装置中流入至第二容纳装置,并控制加热装置启动,以将第二容纳装置中的洗消介质加热至目标清洗温度,能够存储洗消系统的热量,以提高第一容纳装置的基础温度,使得加热装置能够更快地进行加热,提高了加热效率,降低了能耗,提升了洗消系统的洗消介质供给量。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117784838B_ABST
    Figure CN117784838B_ABST
Patent Text Reader

Abstract

The application discloses a control method and device for a decontamination system and the decontamination system. The method comprises the following steps: determining a target cleaning temperature of decontamination medium; when a difference between a first temperature of the decontamination medium in a first containing device and an upper limit of a heating temperature of a heating device is greater than a preset temperature value, controlling a backwater control device to be opened to increase the temperature of the decontamination medium in the first containing device; when the temperature of the decontamination medium in a second containing device is lower than the target cleaning temperature, controlling the decontamination medium in the first containing device to flow from the first containing device to the second containing device; and controlling the heating device to be started to heat the decontamination medium in the second containing device to the target cleaning temperature, so as to store heat of the decontamination system, increase a basic temperature of the first containing device, and enable the heating device to heat faster, thereby improving heating efficiency, reducing energy consumption, and improving a supply amount of the decontamination medium of the decontamination system.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of decontamination control technology, specifically to a control method, control device, decontamination system, and storage medium for a decontamination system. Background Technology

[0002] Decontamination systems are crucial for responding to accidents such as special fires, chemical leaks, and natural disasters. If an accident occurs and cannot be controlled in a timely manner, it can cause incalculable harm to the surrounding environment and people. Therefore, to avoid or mitigate the harm caused to the surrounding environment and people by toxic agents, radioactive materials, biological reagents, or polluting gases and dust, it is necessary to promptly decontaminate contaminated personnel, equipment, items, and accident sites.

[0003] Different decontamination targets require decontamination media of varying temperatures. Current decontamination systems store decontamination media at their lowest possible temperature in the storage tanks. To provide a high-temperature decontamination media to the target, a boiler is needed to heat the lowest-temperature media to the set temperature. However, boilers have limited heating capacity. Current technologies typically employ methods such as limiting water flow and extending heating time to ensure heating effectiveness, resulting in slow heating and low decontamination efficiency. Summary of the Invention

[0004] The purpose of this application is to provide a control method, control device, decontamination system and storage medium for a decontamination system, so as to solve the problems of slow heating and low hot water flow in the existing decontamination system.

[0005] To achieve the above objectives, the first aspect of this application provides a control method for a decontamination system. The decontamination system includes a first containing device, a second containing device, and a heating device. A return water control device is installed between the first and second containing devices. The control method includes:

[0006] Determine the target cleaning temperature for the decontamination medium;

[0007] When the difference between the first temperature of the decontamination medium in the first containing device and the upper limit of the heating temperature of the heating device is greater than the preset temperature value, the return water control device is opened, so that the decontamination medium at the second temperature in the second containing device flows into the first containing device after passing through the return water control device, thereby increasing the temperature of the decontamination medium in the first containing device, wherein the second temperature is higher than the first temperature.

[0008] If the temperature of the decontamination medium in the second container is lower than the target cleaning temperature, the decontamination medium in the first container is controlled to flow from the first container into the second container.

[0009] The heating device is activated to heat the decontamination medium in the second container to the target cleaning temperature.

[0010] In this embodiment of the application, a temperature sensor is installed on the second containing device, and controlling the heating device to start includes: obtaining the temperature of the decontamination medium in the second containing device through the temperature sensor; determining the heating power of the heating device based on the difference between the temperature of the decontamination medium in the second containing device and the target cleaning temperature; and controlling the heating device to start according to the heating power.

[0011] In this embodiment of the application, the decontamination system further includes a decontamination valve and a decontamination device. The decontamination valve is installed between the second receiving device and the decontamination device. The control method further includes: when the difference between the first temperature of the decontamination medium in the first receiving device and the upper limit of the heating temperature of the heating device is greater than a preset temperature value, controlling the decontamination valve to open, so that the decontamination medium at the second temperature in the second receiving device enters the decontamination device after flowing through the decontamination valve, so as to clean the object to be cleaned. The decontamination valve is used to control the amount of decontamination medium used by the decontamination device in a single application.

[0012] In this embodiment of the application, the control method further includes: after heating the decontamination medium in the second containing device to the target cleaning temperature, controlling the return water control device to close under any of the following conditions: the difference between the temperature of the decontamination medium in the first containing device and the upper limit of the heating temperature of the heating device is greater than the maximum temperature rise of the heating device, wherein the maximum temperature rise refers to the temperature change value before and after heating the maximum flow rate of the decontamination medium of the heating device; the real-time pressure of the pipeline where the return water control device is located is lower than the preset pressure value; the total amount of decontamination medium in the decontamination device is greater than the product of the maximum flow rate of the decontamination medium of the heating device and the preset coefficient; the temperature of the decontamination medium in the first containing device is greater than the upper limit of the temperature of the first containing device.

[0013] In this embodiment of the application, the control method further includes: when the temperature of the decontamination medium in the second containing device is lower than the target cleaning temperature, controlling the decontamination medium in the first containing device to flow out of the first containing device, and after flowing through the second containing device, flowing into the heating device; controlling the heating device to start, so as to heat the decontamination medium flowing into the heating device to the target cleaning temperature.

[0014] In this embodiment of the application, the decontamination system further includes a decontamination device and a hot water pump installed between the second receiving device and the decontamination device. The control method further includes: after heating the decontamination medium in the second receiving device to the target cleaning temperature, controlling the hot water pump to turn on, so that the decontamination medium in the second receiving device flows through the hot water pump and then flows to the decontamination device; collecting the pressure data of the hot water pump through a pressure sensor installed on the outlet of the hot water pump; and determining the actual flow rate of the decontamination medium flowing out of the hot water pump based on the pressure data.

[0015] In this embodiment of the application, the decontamination system further includes a decontamination valve and a flow meter installed between the second containment device and the decontamination valve. The control method further includes: after the control return water control device is opened, measuring the flow rate of the decontamination medium flowing from the second containment device to the decontamination device through the flow meter; and determining the difference between the actual flow rate and the flow rate of the decontamination medium flowing from the second containment device to the decontamination device as the flow rate of the decontamination medium flowing from the second containment device to the return water control device.

[0016] A second aspect of this application provides a control device for a decontamination system, comprising:

[0017] The memory is configured to store instructions; and

[0018] The processor is configured to retrieve instructions from memory and, when executing instructions, to implement the aforementioned control methods for the decontamination system.

[0019] A third aspect of this application provides a decontamination system, comprising:

[0020] The first receiving device is used to contain the decontamination medium;

[0021] The second container is used to contain the decontamination medium. The temperature of the decontamination medium in the second container is higher than that of the decontamination medium in the first container. The first container and the second container are connected by a return water control device, which is used to control the flow of the decontamination medium in the second container into the first container.

[0022] Heating device for heating the decontamination medium in the second containment device; and

[0023] The aforementioned control device for the decontamination system.

[0024] In this embodiment of the application, it further includes: a decontamination valve, installed between the second receiving device and the decontamination device, for controlling the amount of decontamination medium used by the decontamination device in a single application; and a decontamination device, for cleaning the object to be cleaned using the decontamination medium.

[0025] In this embodiment of the application, a hot water pump is also included, installed between the second containment device and the decontamination device, for controlling the flow of the decontamination medium in the second containment device to the decontamination device.

[0026] In this embodiment of the application, a flow meter is also included, installed between the second containment device and the decontamination valve, for measuring the flow rate of the decontamination medium flowing from the second containment device into the decontamination device.

[0027] A fourth aspect of this application provides a machine-readable storage medium storing instructions for causing a machine to perform the aforementioned control method for a decontamination system.

[0028] Through the above technical solution, when the difference between the first temperature of the decontamination medium in the first containing device and the upper limit of the heating temperature of the heating device is greater than the preset temperature value, the return water control device is opened, so that the decontamination medium at the second temperature in the second containing device flows into the first containing device after passing through the return water control device, thereby increasing the temperature of the decontamination medium in the first containing device; when the temperature of the decontamination medium in the second containing device is lower than the target cleaning temperature, the decontamination medium in the first containing device is controlled to flow from the first containing device into the second containing device, and the heating device is started to heat the decontamination medium in the second containing device to the target cleaning temperature. This can store the heat of the decontamination system to increase the base temperature of the first containing device, enabling the heating device to heat faster, improving heating efficiency, reducing energy consumption, and increasing the supply of decontamination medium in the decontamination system.

[0029] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0030] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. In the drawings:

[0031] Figure 1 The illustration shows a schematic flow diagram of a control method for a decontamination system according to an embodiment of this application;

[0032] Figure 2 This illustration schematically shows a decontamination system according to an embodiment of the present application;

[0033] Figure 3 This schematic diagram illustrates a structural block diagram of a decontamination system according to an embodiment of this application;

[0034] Figure 4 This illustration shows another schematic diagram of a decontamination system according to an embodiment of this application;

[0035] Figure 5 The illustration shows a schematic diagram of a water return control process according to an embodiment of this application;

[0036] Figure 6 The diagram illustrates the internal structure of a computer device according to an embodiment of this application.

[0037] Explanation of reference numerals in the attached figures

[0038] 1. Water tank 2. Water tank outlet valve 3. Cold water pump 4. Float valve

[0039] 5. Hot water tank; 6. Boiler; 7. Circulating pump; 8. Hot water valve

[0040] 9. Hot water pump; 10. Flow meter; 11. Return water proportional valve; 12. Mixing tank.

[0041] 13. Chemical tank 14. Quick-connect coupling 15. Decontamination valve 16. Spray nozzle

[0042] 17. Quick-connect coupling; 18. Decontamination valve; 19. Spray nozzle; 20. Expansion tank.

[0043] 21. Temperature sensor 22. Liquid level sensor 23. Pressure sensor

[0044] 24. Liquid level sensor 25. Temperature sensor 26. Pressure sensor Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of the embodiments of this application and are not intended to limit the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0046] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0047] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0048] Figure 1 The illustration schematically shows a flow chart of a control method for a decontamination system according to an embodiment of this application. Figure 1As shown in the figure, this application provides a control method for a decontamination system. The decontamination system includes a first container, a second container, and a heating device. A return water control device is installed between the first container and the second container. The control method may include the following steps.

[0049] Step 101: Determine the target cleaning temperature of the decontamination medium.

[0050] Step 102: When the difference between the first temperature of the decontamination medium in the first containing device and the upper limit of the heating temperature of the heating device is greater than the preset temperature value, the return water control device is opened, so that the decontamination medium at the second temperature in the second containing device flows into the first containing device after passing through the return water control device, thereby increasing the temperature of the decontamination medium in the first containing device, wherein the second temperature is higher than the first temperature.

[0051] The decontamination system may include a first containing device, a second containing device, and a heating device. A return water control device may be installed between the first and second containing devices. A processor can determine the target cleaning temperature of the decontamination medium. The processor can determine whether the difference between the first temperature of the decontamination medium in the first containing device and the upper limit of the heating temperature of the heating device is greater than a preset temperature value. If the difference between the first temperature of the decontamination medium in the first containing device and the upper limit of the heating temperature of the heating device is greater than the preset temperature value, the processor can control the return water control device to open, so that the decontamination medium at a second temperature in the second containing device flows into the first containing device after passing through the return water control device, thereby increasing the temperature of the decontamination medium in the first containing device. The second temperature is higher than the first temperature.

[0052] In this embodiment of the application, the decontamination system further includes a decontamination valve and a decontamination device. The decontamination valve is installed between the second receiving device and the decontamination device. The control method further includes: when the difference between the first temperature of the decontamination medium in the first receiving device and the upper limit of the heating temperature of the heating device is greater than a preset temperature value, controlling the decontamination valve to open, so that the decontamination medium at the second temperature in the second receiving device enters the decontamination device after flowing through the decontamination valve, so as to clean the object to be cleaned. The decontamination valve is used to control the amount of decontamination medium used by the decontamination device in a single application.

[0053] The decontamination system also includes a decontamination valve and a decontamination device. The decontamination valve is installed between the second receiving device and the decontamination device, and it controls the amount of decontamination medium used in a single application. If the difference between the first temperature of the decontamination medium in the first receiving device and the upper limit of the heating temperature of the heating device exceeds a preset temperature value, the processor can also control the decontamination valve to open, allowing the decontamination medium at the second temperature in the second receiving device to flow through the decontamination valve and enter the decontamination device to clean the object to be cleaned.

[0054] Step 103: If the temperature of the decontamination medium in the second container is lower than the target cleaning temperature, control the decontamination medium in the first container to flow from the first container to the second container.

[0055] Step 104: Control the heating device to start, so as to heat the decontamination medium in the second container to the target cleaning temperature.

[0056] The processor can also determine whether the temperature of the decontamination medium in the second container is lower than the target cleaning temperature. If the temperature of the decontamination medium in the second container is lower than the target cleaning temperature, the processor can control the decontamination medium in the first container to flow from the first container to the second container. It also controls the heating device to start, so as to heat the decontamination medium in the second container to the target cleaning temperature.

[0057] In this embodiment of the application, a temperature sensor is installed on the second containing device, and controlling the heating device to start includes: obtaining the temperature of the decontamination medium in the second containing device through the temperature sensor; determining the heating power of the heating device based on the difference between the temperature of the decontamination medium in the second containing device and the target cleaning temperature; and controlling the heating device to start according to the heating power.

[0058] A temperature sensor is installed on the second containment device. The processor can control the heating device to start. Specifically, the processor can obtain the temperature of the decontamination medium inside the second containment device through the temperature sensor. After obtaining the temperature of the decontamination medium inside the second containment device, the processor can determine the heating power of the heating device based on the difference between the temperature of the decontamination medium inside the second containment device and the target cleaning temperature. After determining the heating power of the heating device, the processor can control the heating device to start according to the heating power.

[0059] In this embodiment of the application, the decontamination system further includes a decontamination device and a hot water pump installed between the second receiving device and the decontamination device. The control method further includes: after heating the decontamination medium in the second receiving device to the target cleaning temperature, controlling the hot water pump to turn on, so that the decontamination medium in the second receiving device flows through the hot water pump and then flows to the decontamination device; collecting the pressure data of the hot water pump through a pressure sensor installed on the outlet of the hot water pump; and determining the actual flow rate of the decontamination medium flowing out of the hot water pump based on the pressure data.

[0060] The decontamination system also includes a decontamination device and a hot water pump installed between the second containment device and the decontamination device. After heating the decontamination medium in the second containment device to the target cleaning temperature, the processor can control the hot water pump to open, allowing the decontamination medium in the second containment device to flow through the hot water pump and then to the decontamination device. The processor can collect pressure data from the hot water pump via a pressure sensor installed at the pump outlet. After obtaining the pressure data, the processor can determine the actual flow rate of the decontamination medium flowing out of the hot water pump based on the pressure data.

[0061] In this embodiment of the application, the decontamination system further includes a decontamination valve and a flow meter installed between the second containment device and the decontamination valve. The control method further includes: after the control return water control device is opened, measuring the flow rate of the decontamination medium flowing from the second containment device to the decontamination device through the flow meter; and determining the difference between the actual flow rate and the flow rate of the decontamination medium flowing from the second containment device to the decontamination device as the flow rate of the decontamination medium flowing from the second containment device to the return water control device.

[0062] The decontamination system also includes a decontamination valve and a flow meter installed between the second containment device and the decontamination valve. After the return water control device is opened, the processor can measure the rated flow rate of the decontamination medium flowing from the second containment device to the decontamination device via the flow meter. The difference between the actual flow rate of the decontamination medium flowing out of the hot water pump and the flow rate of the decontamination medium flowing from the second containment device to the decontamination device is determined as the flow rate of the decontamination medium from the second containment device to the return water control device.

[0063] For example, the first containing device can be a water tank, the second containing device can be a hot water tank, the heating device can be a boiler, and the return water control device can be a return water proportional valve. The decontamination system can include a water tank 1, a water tank outlet valve 2, a cold water pump 3, a float valve 4, a hot water tank 5, a boiler 6, a circulating pump 7, a hot water valve 8, a hot water pump 9, a flow meter 10, a return water proportional valve 11, a mixing tank 12, a chemical tank 13, a quick-connect coupling 14, a decontamination valve 15, a nozzle 16, a quick-connect coupling 17, a decontamination valve 18, a nozzle 19, a temperature sensor 21, a level sensor 22, a pressure sensor 23, a level sensor 24, a temperature sensor 25, and a pressure sensor 26.

[0064] Level sensor 22 and temperature sensor 21 are installed on water tank 1 to collect data on the volume and temperature of the decontamination medium in water tank 1, respectively. Water tank 1, water tank outlet valve 2, cold water pump 3, float valve 4, and hot water tank 5 are connected by a cold water pipeline. A pressure sensor 23 is installed at the outlet of cold water pump 3 to collect pressure data at the outlet of cold water pump 3. Level sensor 24 and temperature sensor 25 are installed on hot water tank 5. A circulation loop is formed between hot water tank 5 and boiler 6 through two pipelines, and circulation pump 7 is installed on one of the pipelines to draw decontamination medium from hot water tank 5, transport it to boiler 6 for heating, and then transport the heated decontamination medium back to hot water tank 5.

[0065] Hot water tank 5, hot water valve 8, hot water pump 9, and flow meter 10 are connected via a hot water pipeline. Pressure sensor 26 is installed at the outlet of hot water pump 9 to collect pressure data. Hot water tank 5, hot water valve 8, hot water pump 9, return water proportional valve 11, and water tank 1 are connected via a return water pipeline. Flow meter 10, mixing tank 12, chemical tank 13, quick-connect coupling 14, decontamination valve 15, and spray head 16 are connected via a neutralization pipeline. Flow meter 10, quick-connect coupling 17, decontamination valve 18, and spray head 19 are connected via a decontamination pipeline.

[0066] The processor can determine the target cleaning temperature of the decontamination medium. The initial temperature T0 of the decontamination medium in water tank 1 is compared with the upper limit of the heating temperature T of boiler 6. set When the temperature difference ΔT is greater than the preset temperature, the processor can control the hot water tank 5, hot water valve 8, hot water pump 9, return water proportional valve 11, and water tank 1 to open, allowing the decontamination medium at the second temperature T1 in the hot water tank 5 to flow out of the hot water tank 5, sequentially through the hot water valve 8, hot water pump 9, and return water proportional valve 11, before flowing into the water tank 1, thereby increasing the temperature of the decontamination medium in the water tank 1. When the temperature of the decontamination medium in the hot water tank 5 is lower than the target cleaning temperature, the processor can control the water tank 1, water tank outlet valve 2, cold water pump 3, and hot water tank 5 to open. When the liquid level in the hot water tank 5 is lower than the preset liquid level, the processor controls the float valve 4 to open, allowing the decontamination medium in the water tank 1 to flow out of the water tank 1, sequentially through the water tank outlet valve 2 and cold water pump 3, before flowing into the hot water tank 5. The second temperature T1 is higher than the first temperature T0.

[0067] After the decontamination medium in water tank 1 flows into hot water tank 5, the processor can obtain the temperature in hot water tank 5 through temperature sensor 25. If the difference between the temperature in hot water tank 5 and the target cleaning temperature is greater than the set temperature X1, the processor controls boiler 6 to operate at full power. If the difference between the temperature in hot water tank 5 and the target cleaning temperature is less than the set temperature X1 but greater than zero, the processor can control boiler 6 to reduce its operating power. If the difference between the temperature in hot water tank 5 and the target cleaning temperature is equal to or less than zero, the processor can control boiler 6 to shut down to maintain the temperature of the decontamination medium.

[0068] The processor can control the circulation pump 7 to start, drawing the decontamination medium from the hot water tank 5 into the boiler 6, so that the boiler 6 heats the decontamination medium according to the corresponding power. It also controls the heated decontamination medium to flow back from the boiler 6 into the hot water tank 5.

[0069] The processor can control the opening of the decontamination pipeline containing the hot water tank 5, hot water valve 8, hot water pump 9, flow meter 10, quick-connect coupling 17, decontamination valve 18, and nozzle 19, so that the decontamination medium in the hot water tank 5 flows out of the hot water tank 5, flows through the hot water valve 8, hot water pump 9, and flow meter 10, and then flows to the quick-connect coupling 17, decontamination valve 18, and nozzle 19, and cleans the object to be cleaned through the nozzle 19.

[0070] The processor can control the opening of the neutralization pipeline containing the hot water tank 5, hot water valve 8, hot water pump 9, flow meter 10, mixing tank 12, chemical tank 13, quick-connect coupling 14, decontamination valve 15, and nozzle 16, so that the decontamination medium in the hot water tank 5 flows out of the hot water tank 5, passes through the hot water valve 8, hot water pump 9, and flow meter 10, and flows into the mixing tank 12. The processor can control the decontamination medium to draw a set proportion of chemical from the chemical tank 13 and mix it in the mixing tank 12. The processor can control the mixed decontamination medium to flow out of the mixing tank 12, pass through the quick-connect coupling 14, decontamination valve 15, and nozzle 16, and clean the object to be cleaned through the nozzle 16.

[0071] Meanwhile, the processor can also control the opening of the hot water tank 5, hot water valve 8, hot water pump 9, return water proportional valve 11, and the return water pipeline where water tank 1 is located, so that the cleaning and disinfection medium in hot water tank 5 flows out of hot water tank 5, flows through hot water valve 8 and hot water pump 9, flows to return water proportional valve 11, and flows into water tank 1 after passing through return water proportional valve 11.

[0072] like Figure 3As shown, the disinfection system also includes a controller (i.e., a processor), a temperature sensor 21, a level sensor 22, a pressure sensor 23, a level sensor 24, a temperature sensor 25, a pressure sensor 26, a flow meter 10, a water tank outlet valve 2, a cold water pump 3, a frequency converter for the cold water pump 3, a cold water valve 4, a boiler 6, a hot water valve 8, a hot water pump 9, a frequency converter for the hot water pump 9, a return water proportional valve 11, and intelligent preheating. The processor can collect the pressure data P of the hot water pump 9 through the pressure sensor 26. 26 And based on the pressure data P 26 The actual flow rate Q of hot water pump 9 is determined by the flow characteristics of hot water pump 9. g The actual flow rate Q of hot water pump 9 was obtained. g Then, the processor can convert the actual traffic Q g The flow rate Q collected by flow meter 10 x The difference Q between them h The decontamination medium is identified as flowing into water tank 1 through the return pipe. The processor can also determine the actual flow rate Q. g Is it greater than the maximum flow rate Q designed for boiler 6? max In determining the actual flow rate Q g It is greater than the maximum flow rate Q max In this case, the processor can adjust the actual flow rate of the hot water pump 9 via the frequency converter. The processor can also obtain the temperature of the decontamination medium in the water tank 1 via the temperature sensor 21. If the temperature of the water tank 1 is lower than the preset temperature, the processor can control the activation of intelligent preheating.

[0073] In this embodiment of the application, the control method further includes: after heating the decontamination medium in the second containing device to the target cleaning temperature, controlling the return water control device to close under any of the following conditions: the difference between the temperature of the decontamination medium in the first containing device and the upper limit of the heating temperature of the heating device is greater than the maximum temperature rise of the heating device, wherein the maximum temperature rise refers to the temperature change value before and after heating the maximum flow rate of the decontamination medium of the heating device; the real-time pressure of the pipeline where the return water control device is located is lower than the preset pressure value; the total amount of decontamination medium in the decontamination device is greater than the product of the maximum flow rate of the decontamination medium of the heating device and the preset coefficient; the temperature of the decontamination medium in the first containing device is greater than the upper limit of the temperature of the first containing device.

[0074] After heating the decontamination medium in the second containment device to the target cleaning temperature, the processor may control the return water control device to shut off if any of the following conditions are met: The temperature difference between the decontamination medium in the first containment device and the upper limit of the heating temperature of the heating device is greater than the maximum temperature rise of the heating device. Here, the maximum temperature rise refers to the temperature change before and after heating the maximum flow rate of decontamination medium in the heating device. The real-time pressure of the pipeline where the return water control device is located is lower than a preset pressure value. The total amount of decontamination medium in the decontamination device is greater than the product of the maximum flow rate of decontamination medium in the heating device and a preset coefficient. The temperature of the decontamination medium in the first containment device is greater than the upper limit of the temperature of the first containment device.

[0075] For example, such as Figure 4 As shown, the processor can control the return water flow. The processor can determine the initial temperature T0 of the decontamination medium in water tank 1 and the upper limit T of the heating temperature of boiler 6. set Is the difference between them greater than the maximum temperature rise ΔT of boiler 6? Qmax The upper limit of heating temperature T of boiler 6 set The temperature difference between the first temperature T0 of the decontamination medium in water tank 1 and the maximum temperature rise ΔT of boiler 6 is greater than or equal to that of the first temperature T0 of the decontamination medium in water tank 1. Qmax In this case, the processor can close the return water proportional valve. The pressure data P collected by pressure sensor 26... 26 Less than or equal to the preset pressure value P 26set In this case, the processor can close the return water proportional valve. The flow rate Q collected by flow meter 10... x The maximum flow rate Q of boiler 6 is greater than or equal to the design maximum flow rate. max The product of this and the preset coefficient 0.8 is 0.8Q. max In this case, the processor can shut off the return water proportional valve.

[0076] The upper limit of heating temperature T of boiler 6 set The temperature difference between the initial temperature T0 of the decontamination medium in water tank 1 and the maximum temperature rise ΔT of boiler 6 is less than that of water tank 6. Qmax And the pressure data P collected by pressure sensor 26 26 Greater than the preset pressure value P 26set And the flow rate Q collected by flow meter 10 x The maximum flow rate Q of boiler 6 is less than the design maximum flow rate. max The product of this and the preset coefficient 0.8 is 0.8Q. max In this case, the processor can open the return water proportional valve and calculate the flow rate Q of the decontamination medium in the return water pipeline. h =Q max -Q x The processor can also adjust the proportional valve according to the characteristics of the hot water pump 9, and calculate the actual flow rate Q of the hot water pump 9 based on the flow characteristics of the hot water pump 9 and the pressure data collected by the pressure sensor 26.g According to Q g The proportional valve is adjusted to control boiler 6.

[0077] In this embodiment of the application, the control method further includes: when the temperature of the decontamination medium in the second containing device is lower than the target cleaning temperature, controlling the decontamination medium in the first containing device to flow out of the first containing device, and after flowing through the second containing device, flowing into the heating device; controlling the heating device to start, so as to heat the decontamination medium flowing into the heating device to the target cleaning temperature.

[0078] If the temperature of the decontamination medium in the second container is lower than the target cleaning temperature, the processor can control the decontamination medium in the first container to flow out of the first container, and after flowing through the second container, flow into the heating device. The processor can then control the heating device to start, so as to heat the decontamination medium flowing into the heating device to the target cleaning temperature.

[0079] For example, such as Figure 5 As shown, the decontamination system may include a water tank 1, a water tank outlet valve 2, a cold water pump 3, a float valve 4, an expansion tank 20, a boiler 6, a hot water valve 8, a hot water pump 9, a flow meter 10, a return water proportional valve 11, a mixing tank 12, a chemical tank 13, a quick-connect coupling 14, a decontamination valve 15, a nozzle 16, a quick-connect coupling 17, a decontamination valve 18, a nozzle 19, a temperature sensor 21, a level sensor 22, a pressure sensor 23, a level sensor 24, a temperature sensor 25, and a pressure sensor 26.

[0080] Level sensor 22 and temperature sensor 21 are installed on water tank 1 to collect data on the volume and temperature of the decontamination medium in water tank 1, respectively. Water tank 1, water tank outlet valve 2, cold water pump 3, float valve 4, expansion tank 20, and boiler 6 are connected via cold water pipelines. Pressure sensor 23 is installed at the outlet of cold water pump 3 to collect pressure data at the outlet of cold water pump 3. Level sensor 24 is installed on hot water tank 5. Temperature sensor 25 is installed on boiler 6.

[0081] Boiler 6, hot water valve 8, hot water pump 9, and flow meter 10 are connected via a hot water pipeline. Pressure sensor 26 is installed at the outlet of hot water pump 9 to collect pressure data. Boiler 6, hot water valve 8, hot water pump 9, return water proportional valve 11, and water tank 1 are connected via a return water pipeline. Flow meter 10, mixing tank 12, chemical tank 13, quick-connect coupling 14, decontamination valve 15, and spray head 16 are connected via a neutralization pipeline. Flow meter 10, quick-connect coupling 17, decontamination valve 18, and spray head 19 are connected via a decontamination pipeline.

[0082] The processor can determine the target cleaning temperature of the decontamination medium. The initial temperature T0 of the decontamination medium in water tank 1 is compared with the upper limit of the heating temperature T of boiler 6.set When the temperature difference ΔT is greater than the preset temperature, the processor can control the boiler 6, hot water valve 8, hot water pump 9, return water proportional valve 11, and water tank 1 to open, allowing the heated decontamination medium in boiler 6 to flow out of boiler 6, sequentially through hot water valve 8, hot water pump 9, and return water proportional valve 11, and then into water tank 1, thereby increasing the temperature of the decontamination medium in water tank 1. When the temperature of the decontamination medium in boiler 6 is lower than the target cleaning temperature, the processor can control the water tank 1, water tank outlet valve 2, cold water pump 3, and expansion tank 20 to open. If the liquid level in expansion tank 20 is lower than the preset level, the processor controls the float valve 4 to open, allowing the decontamination medium in water tank 1 to flow out of water tank 1, through water tank outlet valve 2 and cold water pump 3, and then into expansion tank 20. The processor can then control the decontamination medium in expansion tank 20 to flow into boiler 6 for heating, raising it to the target cleaning temperature.

[0083] The processor can control the opening of the decontamination pipeline containing boiler 6, hot water valve 8, hot water pump 9, flow meter 10, quick-connect coupling 17, decontamination valve 18, and nozzle 19, so that the decontamination medium in boiler 6 flows out of boiler 6, flows through hot water valve 8, hot water pump 9, and flow meter 10, and then flows to quick-connect coupling 17, decontamination valve 18, and nozzle 19, and cleans the object to be cleaned through nozzle 19.

[0084] The processor can control the opening of the neutralization pipeline containing boiler 6, hot water valve 8, hot water pump 9, flow meter 10, mixing tank 12, chemical tank 13, quick-connect coupling 14, decontamination valve 15, and nozzle 16, so that the decontamination medium in boiler 6 flows out of boiler 6, passes through hot water valve 8, hot water pump 9, and flow meter 10, and flows into mixing tank 12. The processor can control the decontamination medium to draw a set proportion of chemical from chemical tank 13 and mix it in mixing tank 12. The processor can control the mixed decontamination medium to flow out of mixing tank 12, pass through quick-connect coupling 14, decontamination valve 15, and nozzle 16, and clean the object to be cleaned through nozzle 16.

[0085] At the same time, the processor can also control the opening of the return water pipeline where the boiler 6, hot water valve 8, hot water pump 9, return water proportional valve 11, and water tank 1 are located, so that the cleaning and disinfection medium in the boiler 6 flows out of the boiler 6, flows through the hot water valve 8 and hot water pump 9, flows to the return water proportional valve 11, and flows into the water tank 1 after passing through the return water proportional valve 11.

[0086] The above technical solution can store the heat of the decontamination system to increase the base temperature of the first containment device, enabling the heating device to heat up faster, improving heating efficiency, reducing energy consumption, and increasing the supply of decontamination media in the decontamination system.

[0087] Figure 1 , 4This is a flowchart illustrating a control method for a decontamination system in one embodiment. It should be understood that, although... Figure 1 , 4 The steps in the flowchart are shown sequentially as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order in which these steps are executed, and they can be performed in other orders. Figure 1 , 4 At least some of the steps in the process may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least some of the sub-steps or stages of other steps.

[0088] This application also provides a control device for a decontamination system, including:

[0089] The memory is configured to store instructions; and

[0090] The processor is configured to retrieve instructions from memory and, when executing instructions, to implement the aforementioned control methods for the decontamination system.

[0091] This application also provides a decontamination system, including:

[0092] The first receiving device is used to contain the decontamination medium;

[0093] The second container is used to contain the decontamination medium. The temperature of the decontamination medium in the second container is higher than that of the decontamination medium in the first container. The first container and the second container are connected by a return water control device, which is used to control the flow of the decontamination medium in the second container into the first container.

[0094] Heating device for heating the decontamination medium in the second containment device; and

[0095] The aforementioned control device for the decontamination system.

[0096] In this embodiment of the application, it further includes: a decontamination valve, installed between the second receiving device and the decontamination device, for controlling the amount of decontamination medium used by the decontamination device in a single application; and a decontamination device, for cleaning the object to be cleaned using the decontamination medium.

[0097] In this embodiment of the application, a hot water pump is also included, installed between the second containment device and the decontamination device, for controlling the flow of the decontamination medium in the second containment device to the decontamination device.

[0098] In this embodiment of the application, a flow meter is also included, installed between the second containment device and the decontamination valve, for measuring the flow rate of the decontamination medium flowing from the second containment device into the decontamination device.

[0099] This decontamination system can quickly heat the decontamination medium and clean the object to be cleaned in a timely manner.

[0100] This application also provides a machine-readable storage medium storing instructions that cause a machine to perform the control method for a decontamination system described above.

[0101] In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 6 As shown. The computer device includes a processor A01, a network interface A02, a memory (not shown), and a database (not shown) connected via a system bus. The processor A01 provides computing and control capabilities. The memory includes internal memory A03 and a non-volatile storage medium A04. The non-volatile storage medium A04 stores an operating system B01, a computer program B02, and a database (not shown). The internal memory A03 provides an environment for the operation of the operating system B01 and the computer program B02 stored in the non-volatile storage medium A04. The database stores data on the target cleaning temperature and the temperature of the decontamination medium. The network interface A02 is used for communication with external terminals via a network connection. When the computer program B02 is executed by the processor A01, it implements a control method for the decontamination system.

[0102] Those skilled in the art will understand that Figure 6 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0103] This application provides an apparatus including a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, it performs the following steps: determining a target cleaning temperature for the decontamination medium; if the difference between the first temperature of the decontamination medium in the first containing device and the upper limit of the heating temperature of the heating device is greater than a preset temperature value, controlling the return water control device to open, so that the decontamination medium at a second temperature in the second containing device flows into the first containing device after passing through the return water control device, thereby increasing the temperature of the decontamination medium in the first containing device, wherein the second temperature is higher than the first temperature; if the temperature of the decontamination medium in the second containing device is lower than the target cleaning temperature, controlling the decontamination medium in the first containing device to flow from the first containing device into the second containing device; and controlling the heating device to start, so as to heat the decontamination medium in the second containing device to the target cleaning temperature.

[0104] In one embodiment, a temperature sensor is installed on the second containment device, and controlling the heating device to start includes: obtaining the temperature of the decontamination medium in the second containment device through the temperature sensor; determining the heating power of the heating device based on the difference between the temperature of the decontamination medium in the second containment device and the target cleaning temperature; and controlling the heating device to start according to the heating power.

[0105] In one embodiment, the decontamination system further includes a decontamination valve and a decontamination device, wherein the decontamination valve is installed between the second containment device and the decontamination device, and the control method further includes: when the difference between the first temperature of the decontamination medium in the first containment device and the upper limit of the heating temperature of the heating device is greater than a preset temperature value, controlling the decontamination valve to open, so that the decontamination medium at the second temperature in the second containment device enters the decontamination device after flowing through the decontamination valve, so as to clean the object to be cleaned, wherein the decontamination valve is used to control the amount of decontamination medium used by the decontamination device in a single application.

[0106] In one embodiment, the control method further includes: after heating the decontamination medium in the second containment device to the target cleaning temperature, controlling the return water control device to shut off if any of the following conditions are met: the difference between the temperature of the decontamination medium in the first containment device and the upper limit of the heating temperature of the heating device is greater than the maximum temperature rise of the heating device, wherein the maximum temperature rise refers to the temperature change value before and after heating the maximum flow rate of the decontamination medium of the heating device; the real-time pressure of the pipeline where the return water control device is located is lower than a preset pressure value; the total amount of decontamination medium in the decontamination device is greater than the product of the maximum flow rate of the decontamination medium of the heating device and a preset coefficient; the temperature of the decontamination medium in the first containment device is greater than the upper limit of the temperature of the first containment device.

[0107] In one embodiment, the control method further includes: when the temperature of the decontamination medium in the second containing device is lower than the target cleaning temperature, controlling the decontamination medium in the first containing device to flow out of the first containing device, and after flowing through the second containing device, flowing into the heating device; controlling the heating device to start, so as to heat the decontamination medium flowing into the heating device to the target cleaning temperature.

[0108] In one embodiment, the decontamination system further includes a decontamination device and a hot water pump installed between the second containment device and the decontamination device. The control method further includes: after heating the decontamination medium in the second containment device to a target cleaning temperature, controlling the hot water pump to turn on, so that the decontamination medium in the second containment device flows through the hot water pump and then flows to the decontamination device; collecting pressure data of the hot water pump through a pressure sensor installed on the outlet of the hot water pump; and determining the actual flow rate of the decontamination medium flowing out of the hot water pump based on the pressure data.

[0109] In one embodiment, the decontamination system further includes a decontamination valve and a flow meter installed between the second containment device and the decontamination valve. The control method further includes: after the control return water control device is opened, measuring the flow rate of the decontamination medium flowing from the second containment device to the decontamination device by the flow meter; and determining the difference between the actual flow rate and the flow rate of the decontamination medium flowing from the second containment device to the decontamination device as the flow rate of the decontamination medium flowing from the second containment device to the return water control device.

[0110] This application also provides a computer program product that, when executed on a data processing device, is adapted to execute a program that initializes control method steps for a decontamination system.

[0111] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0112] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0113] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0114] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0115] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0116] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0117] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0118] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0119] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A control method for a decontamination system, characterized in that, The decontamination system includes a first containment device, a second containment device, a heating device, a decontamination valve, and a decontamination device. The decontamination valve is installed between the second containment device and the decontamination device. A return water control device is installed between the first containment device and the second containment device. The control method includes: Determine the target cleaning temperature for the decontamination medium; If the difference between the first temperature of the decontamination medium in the first containing device and the upper limit of the heating temperature of the heating device is greater than a preset temperature value, the return water control device is opened, so that the decontamination medium at the second temperature in the second containing device flows into the first containing device after passing through the return water control device, thereby increasing the temperature of the decontamination medium in the first containing device, wherein the second temperature is higher than the first temperature. The decontamination valve is opened to allow the decontamination medium at the second temperature in the second receiving device to enter the decontamination device after flowing through the decontamination valve, so as to clean the object to be cleaned. The decontamination valve is used to control the amount of decontamination medium used by the decontamination device in a single operation. If the temperature of the decontamination medium in the second containment device is lower than the target cleaning temperature, the decontamination medium in the first containment device is controlled to flow from the first containment device into the second containment device; The heating device is activated to heat the decontamination medium in the second container to the target cleaning temperature. The return water control device shall be shut off if any of the following conditions are met: The difference between the temperature of the decontamination medium in the first containing device and the upper limit of the heating temperature of the heating device is greater than the maximum temperature rise of the heating device, wherein the maximum temperature rise refers to the temperature change value before and after heating the decontamination medium at the maximum flow rate of the heating device; The real-time pressure of the pipeline where the return water control device is located is lower than the preset pressure value; The total amount of the decontamination medium in the decontamination device is greater than the product of the maximum flow rate of the decontamination medium in the heating device and a preset coefficient. The temperature of the decontamination medium in the first containing device is greater than the upper temperature limit of the first containing device.

2. The control method for a decontamination system according to claim 1, characterized in that, The second receiving device is equipped with a temperature sensor, and controlling the heating device to start includes: The temperature of the decontamination medium inside the second containment device is obtained through the temperature sensor. The heating power of the heating device is determined based on the difference between the temperature of the decontamination medium in the second containing device and the target cleaning temperature; The heating device is controlled to start according to the heating power.

3. The control method for a decontamination system according to claim 1, characterized in that, The control method further includes: If the temperature of the decontamination medium in the second container is lower than the target cleaning temperature, the decontamination medium in the first container is controlled to flow out of the first container and, after flowing through the second container, flows into the heating device. The heating device is activated to heat the decontamination medium flowing into the heating device to the target cleaning temperature.

4. The control method for a decontamination system according to claim 1, characterized in that, The decontamination system further includes a decontamination device and a hot water pump installed between the second receiving device and the decontamination device, and the control method further includes: After heating the decontamination medium in the second container to the target cleaning temperature, the hot water pump is turned on, so that the decontamination medium in the second container flows through the hot water pump and then flows to the decontamination device. Pressure data of the hot water pump is collected by a pressure sensor installed at the outlet of the hot water pump. The actual flow rate of the decontamination medium flowing out of the hot water pump is determined based on the pressure data.

5. The control method for a decontamination system according to claim 4, characterized in that, The decontamination system further includes a decontamination valve and a flow meter installed between the second receiving device and the decontamination valve, and the control method further includes: After the return water control device is turned on, the flow rate of the decontamination medium flowing from the second receiving device into the decontamination device is measured by the flow meter; The difference between the actual flow rate and the flow rate of the decontamination medium flowing from the second containment device into the decontamination device is determined as the flow rate of the decontamination medium flowing from the second containment device to the return water control device.

6. A control device for a decontamination system, characterized in that, include: The memory is configured to store instructions; as well as The processor is configured to retrieve the instructions from the memory and, when executing the instructions, to implement the control method for a decontamination system according to any one of claims 1 to 5.

7. A decontamination system, characterized in that, include: The first receiving device is used to contain the decontamination medium; A second container is used to contain decontamination medium. The temperature of the decontamination medium in the second container is higher than that in the first container. The first container and the second container are connected by a return water control device, which is used to control the flow of the decontamination medium in the second container into the first container. A heating device for heating the decontamination medium in the second containing device; and The control device for a decontamination system according to claim 6.

8. The decontamination system according to claim 7, characterized in that, Also includes: A decontamination valve is installed between the second receiving device and the decontamination device to control the amount of decontamination medium used by the decontamination device in a single application. The decontamination device is used to clean the object to be cleaned using a decontamination medium.

9. The decontamination system according to claim 8, characterized in that, Also includes: A hot water pump is installed between the second containment device and the decontamination device to control the flow of the decontamination medium in the second containment device to the decontamination device.

10. The decontamination system according to claim 8, characterized in that, Also includes: A flow meter, installed between the second containment device and the decontamination valve, is used to measure the flow rate of the decontamination medium flowing from the second containment device into the decontamination device.

11. A machine-readable storage medium, characterized in that, The machine-readable storage medium stores instructions for causing the machine to perform the control method for a decontamination system according to any one of claims 1 to 5.

Citation Information

Patent Citations

  • Vehicle-mounted decontamination system

    CN114558826A

  • Solar water heating engineering control system

    CN207815742U