Temperature control device inside waste treatment container based on frictional heating technology

Abstract

This utility model discloses a temperature regulation device for a waste treatment container based on frictional heating technology, comprising: a pump; a first pipe, the two ends of which are respectively connected to the pump and the interior of the waste treatment container, the pump being used to extract air from the interior of the waste treatment container through the first pipe; a second pipe, the two ends of which are respectively connected to the interior of the waste treatment container and an air source located outside the waste treatment container; a heat exchange unit disposed outside the second pipe, used to heat the gas flowing in the second pipe; and a valve connected to the second pipe, used to control the flow of gas in the second pipe. This application can preheat the gas through the heat exchange unit, thereby significantly shortening the processing time while ensuring the quality of the treated waste. Simultaneously, by adjusting the valve opening and pump operating power through the control unit, energy consumption is reduced, while maintaining the negative pressure balance inside the container.

Description

Technical Field

[0001] This utility model relates to the field of waste treatment technology, and in particular to a temperature regulation device for a waste treatment container based on frictional heating technology. Background Technology

[0002] Equipment that uses frictional heat technology (FHT) to treat waste can use the heat generated by crushing waste in the container to heat the waste to a certain temperature and maintain it for a certain time, thereby achieving disinfection of the waste (see prior art such as application number 202210197819.6, "A medical waste disposal device based on frictional heat technology").

[0003] During the above-mentioned process, the high-temperature gas inside the waste container (such as the upper cylinder component in "a medical waste disposal device based on frictional heat technology") is continuously extracted, washed, and filtered to remove impurities and odors before being discharged into the atmosphere. At the same time, fresh air is replenished into the container to maintain the pressure balance inside the container.

[0004] However, the temperature of the supplemented air is relatively low, usually the same as room temperature. When it is added to the container, it will lower the temperature of the gas inside the container, causing the temperature inside the container to fail to be maintained within the predetermined range (such as 138-155℃ in "a medical waste disposal device based on frictional heat technology"), thus resulting in the disinfection effect not meeting expectations. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a temperature regulation device for waste treatment containers based on frictional heating technology. It can preheat the gas through a heat exchange unit, thereby significantly shortening the processing time while ensuring the quality of the treated waste. At the same time, it can reduce energy consumption by adjusting the valve opening and pump operating power through a control unit, while maintaining the negative pressure balance inside the container.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A temperature control device for a waste treatment container based on frictional heating technology is provided, comprising:

[0008] A pump is installed outside the waste treatment container based on frictional heating technology;

[0009] The first pipe has two ends that are respectively connected to the pump and the interior of the waste treatment container. The pump is used to extract air from the interior of the waste treatment container through the first pipe and create a negative pressure environment inside the waste treatment container.

[0010] The second pipe connects to the interior of the waste treatment container and the air source located outside the waste treatment container at its two ends, respectively.

[0011] A heat exchange unit is disposed outside the second pipe and is used to heat the gas flowing inside the second pipe;

[0012] And a valve, which connects to the second pipe, for controlling the flow of gas within the second pipe.

[0013] Preferably, one end of the second pipe is installed on the outer surface of the flap of the waste treatment container and is bent on the flap, while communicating with the interior of the waste treatment container, and the other end is connected to an external air source.

[0014] Preferably, the heat exchange unit is in contact with the second pipe and is arranged side by side with the second pipe.

[0015] Preferably, the temperature regulating device further includes:

[0016] The first purification unit is connected to the interior of the second pipe and is used to purify the gas from the external gas source that flows into the interior of the second pipe.

[0017] Preferably, the temperature regulating device further includes a second purification unit, which is connected to the inside of the pump and is used to purify the air drawn out by the pump from inside the waste treatment container.

[0018] Preferably, the temperature regulating device further includes a control unit connected to the valve and the pump, used to acquire the temperature of the gas flowing in the first pipe and the temperature of the gas flowing in the second pipe, and to adjust the opening degree of the valve and the operating power of the pump according to the temperature difference between the temperatures of the gas flowing in the first pipe and the gas flowing in the second pipe.

[0019] Preferably, the control unit includes:

[0020] A first temperature sensor is used to obtain the temperature of the gas flowing in the first pipe;

[0021] The second temperature sensor is used to obtain the temperature of the gas flowing in the second pipe;

[0022] A valve controller, which is connected to the valve;

[0023] A pump controller, which is connected to the pump;

[0024] And a synchronization controller, which is connected to the valve controller and the pump controller respectively, and generates a first control signal based on the temperature difference between the temperature of the gas flowing in the first pipeline and the temperature of the gas flowing in the second pipeline. The valve controller adjusts the valve opening according to the first control signal, and the pump controller adjusts the pump operating power according to the first control signal.

[0025] Preferably, the control unit further includes a pressure sensor for acquiring the pressure inside the waste treatment container in real time;

[0026] A pressure differential controller is connected to the valve controller and the pump controller respectively. It generates a second control signal based on the pressure difference between the real-time pressure inside the waste treatment container and the preset pressure value. The valve controller adjusts the valve opening according to the second control signal, and the pump controller adjusts the pump operating power according to the second control signal.

[0027] Preferably, the valve is an electronic valve.

[0028] Preferably, the heat exchange unit includes a heat exchange tube.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] This invention can preheat the gas through a heat exchange unit, so that when the external gas enters the waste treatment container, the internal temperature will not drop too much, and the temperature can be quickly raised to the predetermined range. This significantly shortens the processing time while ensuring the quality of the waste. At the same time, the control unit adjusts the valve opening and pump operating power to reduce energy consumption and maintain the negative pressure balance inside the container. Attached Figure Description

[0031] Figure 1 This is an overall structural diagram of the waste treatment container and temperature control device based on frictional heating technology in this utility model;

[0032] Figure 2 This is a front view of the temperature regulation device inside the waste treatment container based on frictional heating technology in this utility model;

[0033] Figure 3 This is a schematic diagram of the control unit in this utility model. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Example 1:

[0036] like Figure 1-2 As shown, this embodiment provides a temperature regulation device inside a waste treatment container based on friction heat treatment technology. The waste treatment container 1 is used to contain waste and has an openable and closable flip-top 11. In this embodiment, the waste includes infectious, damaging, or pathological medical waste or daily household waste. A moving blade unit (not shown) is provided inside the waste container 1, and the moving blade unit rotates under the drive of a moving blade drive unit 2 (such as a motor) to squeeze and crush the waste inside the waste treatment container 1. During the crushing process, friction is generated between the moving blade unit and the waste, as well as between the materials inside the waste, converting mechanical energy into heat energy, causing the waste to heat up, so as to disinfect and sterilize the waste through friction heat treatment (FHT). The moving blade unit and the technical principle of friction heat treatment technology can be found in existing technologies such as application number 202210197819.6 and "A Medical Waste Disposal Equipment Based on Friction Heat Treatment Technology", which will not be described in detail here.

[0037] Based on this, the temperature regulating device includes:

[0038] Pump 3 (including a vacuum pump) is disposed outside the waste treatment container 1 based on frictional heat technology;

[0039] The first pipe 4 has two ends that are respectively connected to the pump 3 and the interior of the waste treatment container 1. The pump 3 is used to extract the air inside the waste treatment container 1 through the first pipe 4 and create a negative pressure environment inside the waste treatment container 1. For example, in this embodiment, the two ends of the first pipe 4 are respectively connected to the pump 3 and the flip cover 11. At the same time, one end of the first pipe 4 connected to the flip cover 11 is connected to the interior of the waste treatment container 1.

[0040] The second pipe 5 has its two ends connected to the interior of the waste treatment container 1 and an air source (such as the atmospheric environment outside the waste treatment container 1) located outside the waste treatment container 1, respectively. For example, in this embodiment, the two ends of the second pipe 5 are connected to the flip cover 11 and the external air source, respectively. At the same time, one end of the second pipe 5 connected to the flip cover 11 is connected to the interior of the waste treatment container 1, and the temperature of the air source is lower than the temperature of the air inside the waste treatment container 1.

[0041] A heat exchange unit 6 (such as a heat exchange tube) is disposed outside the second pipe 5 and is used to heat the gas flowing inside the second pipe 5. For example, in this embodiment, one end of the second pipe 5 is installed on the outer surface of the flip cover 11 and is bent on the flip cover 11, while communicating with the interior of the waste treatment container 1. The other end is connected to an external gas source. At the same time, the heat exchange unit 6 is also installed on the outer surface of the flip cover 11 and is used to heat the gas flowing inside the second pipe 5, which is connected to the outer surface of the flip cover 11 and is bent. Preferably, to ensure the heating effect, the heat exchange unit 6 contacts the outer surface of the flip cover 11 and is bent, and is arranged side by side with the second pipe 5.

[0042] And valve 7, which is connected to the second pipe 5, for controlling the flow of gas in the second pipe 5.

[0043] When the waste inside the waste treatment container 1 is crushed, the temperature inside the container gradually rises due to friction. Pump 3 continuously extracts high-temperature gas from the waste treatment container 1 through the first pipe 4, and after disinfection and sterilization, it is discharged into the external environment. At the same time, a negative pressure environment is formed inside the waste treatment container 1. During this process, valve 7 is opened, and gas from an external air source (such as air outside the waste treatment container 1, i.e., cold air) enters the second pipe 5 under the action of negative pressure. When it flows to the heat exchange unit 6, it is heated by the heat exchange unit 6 and then enters the interior of the waste treatment container 1.

[0044] In existing technologies, waste is crushed solely by rotating blades, and the waste is disinfected by gradually increasing the temperature through thermal friction during the crushing process. This process lacks additional heating components. Therefore, when cold air is added to the container, the internal temperature drops excessively, requiring the blades to operate for a longer period to raise the internal temperature to the predetermined range, resulting in a prolonged waste processing time. In this embodiment, however, before external gas enters the waste processing container 1, it is preheated by the heat exchange unit 6. This prevents excessive temperature drop upon entry, allowing the temperature to rise rapidly to the predetermined range. Consequently, while ensuring the quality of the processed waste, the processing time is significantly shortened, and the system's energy consumption is reduced.

[0045] Example 2:

[0046] The only difference between this embodiment and Embodiment 1 is that the temperature regulating device further includes:

[0047] The first purification unit 8 is connected to the interior of the second pipe 5 and is used to purify the gas from the external gas source that flows into the interior of the second pipe 5. For example, in this embodiment, the purification unit 8 is connected to the end of the second pipe 5 that is connected to the external gas source. The gas from the external gas source is purified by the purification unit 8 and then flows into the interior of the second pipe 5.

[0048] The second purification unit 9 is connected to the inside of the pump 3 and is used to purify the air drawn out by the pump 3 from inside the waste treatment container 1 before discharging it into the outside atmosphere to reduce pollution.

[0049] In this embodiment, the purification process includes filtration and / or disinfection.

[0050] Example 3:

[0051] The only difference between this embodiment and Embodiment 1 or 2 is that the temperature regulating device further includes:

[0052] The control unit, which is connected to the valve 7 and the pump 3, is used to obtain the temperature T1 of the gas flowing in the first pipe 4 and the temperature T2 of the gas flowing in the second pipe 5, and to adjust the opening degree of the valve 7 (the opening degree range is 0-100%) and the operating power of the pump 3 (0-3kW) according to the temperature difference e(T) between the temperature T1 of the gas flowing in the first pipe 4 and the temperature T2 of the gas flowing in the second pipe 5.

[0053] Specifically, such as Figure 2-3 As shown, the control unit includes:

[0054] The first temperature sensor 10 is used to obtain the temperature T1 of the gas flowing in the first pipe 4;

[0055] The second temperature sensor 12 is used to obtain the temperature T2 of the gas flowing in the second pipe 5;

[0056] Valve controller 13 is connected to valve 7; in this embodiment, valve 7 is an electronic valve.

[0057] Pump controller 14, which is connected to the pump 3;

[0058] And a synchronization controller 15, which is connected to the valve controller 13 and the pump controller 14 respectively, and generates a first control signal based on the temperature difference e(T) between the temperature T1 of the gas flowing in the first pipeline 4 and the temperature T2 of the gas flowing in the second pipeline 5. The valve controller 13 adjusts the opening of the valve 7 according to the first control signal, and the pump controller 14 adjusts the operating power of the pump 3 according to the first control signal.

[0059] Therefore, this embodiment can simultaneously adjust the valve opening and pump operating power through the control unit, thereby minimizing the overall energy consumption of the device.

[0060] Example 4:

[0061] The only difference between this embodiment and embodiment 3 is that the control unit further includes:

[0062] Pressure sensor 16, which is mounted on the flip cover 11, is used to acquire the pressure P inside the waste disposal container 1 in real time. M ;

[0063] The pressure differential controller 17 is connected to the valve controller 13 and the pump controller 14 respectively, and adjusts the pressure P inside the waste treatment container 1 based on the real-time pressure. M The pressure difference e(P) between the preset pressure value Ps generates a second control signal. The valve controller 13 adjusts the opening of the valve 7 according to the second control signal, and the pump controller 14 adjusts the operating power of the pump 3 according to the second control signal, so that the pressure difference e(P) meets the preset condition (such as making the pressure difference e(P) = 0), so as to maintain the negative pressure balance inside the waste treatment container 1.

[0064] In summary, in this invention, before external gas enters the waste treatment container, the gas is preheated by a heat exchange unit, so that the internal temperature does not drop too much after the external gas enters the waste treatment container, and the temperature can be quickly raised to the predetermined range. Thus, while ensuring the quality of the waste being treated, the treatment time is significantly shortened. At the same time, the control unit adjusts the valve opening and the pump operating power to reduce energy consumption and maintain the negative pressure balance inside the container.

[0065] It should be noted that the technical features in embodiments 1 to 3 above can be combined arbitrarily, and the resulting technical solutions all fall within the protection scope of this application. Furthermore, in this document, terms such as "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 a process, method, article, or apparatus. Without further limitations, 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 said element.

[0066] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature regulating device for use in a waste processing vessel based on frictional heat technology, characterized in that, include: A pump is installed outside the waste treatment container based on frictional heating technology; The first pipe has two ends that are respectively connected to the pump and the interior of the waste treatment container. The pump is used to extract air from the interior of the waste treatment container through the first pipe and create a negative pressure environment inside the waste treatment container. The second pipe connects to the interior of the waste treatment container and the air source located outside the waste treatment container at its two ends, respectively. A heat exchange unit is disposed outside the second pipe and is used to heat the gas flowing inside the second pipe; And a valve, which connects to the second pipe, for controlling the flow of gas within the second pipe.

2. The temperature regulating device of claim 1, wherein, One end of the second pipe is installed on the outer surface of the flap of the waste treatment container and is bent on the flap, while communicating with the interior of the waste treatment container. The other end is connected to an external air source.

3. The temperature regulating device of claim 2, wherein, The heat exchange unit is in contact with the second pipe and is arranged side by side with the second pipe.

4. The temperature regulating device of claim 1, wherein, The temperature regulating device further includes: The first purification unit is connected to the interior of the second pipe and is used to purify the gas from the external gas source that flows into the interior of the second pipe.

5. The temperature regulating device of claim 1, wherein, The temperature control device further includes a second purification unit, which is connected to the inside of the pump and is used to purify the air drawn out by the pump from inside the waste treatment container.

6. The temperature regulating device as described in claim 1, characterized in that, The temperature regulating device further includes a control unit, which is connected to the valve and the pump, for obtaining the temperature of the gas flowing in the first pipe and the temperature of the gas flowing in the second pipe, and adjusting the opening degree of the valve and the operating power of the pump according to the temperature difference between the temperature of the gas flowing in the first pipe and the temperature of the gas flowing in the second pipe.

7. The temperature regulating device as described in claim 6, characterized in that, The control unit includes: A first temperature sensor is used to obtain the temperature of the gas flowing in the first pipe; The second temperature sensor is used to obtain the temperature of the gas flowing in the second pipe; A valve controller, which is connected to the valve; A pump controller, which is connected to the pump; And a synchronization controller, which is connected to the valve controller and the pump controller respectively, and generates a first control signal based on the temperature difference between the temperature of the gas flowing in the first pipeline and the temperature of the gas flowing in the second pipeline. The valve controller adjusts the valve opening according to the first control signal, and the pump controller adjusts the pump operating power according to the first control signal.

8. The temperature regulating device as described in claim 7, characterized in that, The control unit also includes a pressure sensor, which is used to acquire the pressure inside the waste treatment container in real time; A pressure differential controller is connected to the valve controller and the pump controller respectively. It generates a second control signal based on the pressure difference between the real-time pressure inside the waste treatment container and the preset pressure value. The valve controller adjusts the valve opening according to the second control signal, and the pump controller adjusts the pump operating power according to the second control signal.

9. The temperature regulating device as described in claim 1, characterized in that, The valve is an electronic valve.

10. The temperature regulating device as described in claim 1, characterized in that, The heat exchange unit includes heat exchange tubes.

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