Automatic control device for cooling circulating water of water bath sterilization cabinet

Abstract

The utility model discloses an automatic control device for cooling circulating water of a water bath sterilization cabinet, and relates to the technical field of water bath sterilization devices. The automatic control device for circulating water comprises a cabinet body, an upper cavity and a lower cavity, a first heat preservation water storage tank and a second heat preservation water storage tank are arranged in the lower cavity, a heater is arranged on the bottom wall of the first heat preservation water storage tank, and a drainage assembly with one end communicated with the upper cavity and the other end communicated with the first heat preservation water storage tank is arranged on one side wall of the cabinet body. A water inlet assembly communicated with the upper cavity is arranged on the side wall of the first heat preservation water storage tank, and a cooling assembly with one end communicated with the upper cavity and the other end communicated with the second heat preservation water storage tank is arranged on the other side wall of the cabinet body. The filtered water is rapidly heated through the heater, so that the working efficiency is improved; water is sprayed to the side wall of the upper cavity through the cooling assembly, the inner wall of the upper cavity can be washed, meanwhile, the temperature in the upper cavity can be rapidly reduced, the cooling time of the container is saved, and the efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of water bath sterilization devices, specifically an automatic control device for cooling circulating water in a water bath sterilization cabinet. Background Technology

[0002] A water bath sterilizer is a scientific instrument used in the fields of physics and chemistry. This series of sterilizers is widely used in the sterilization of biological products, utensils, sterile garments, medical devices, medical excipients, and other items with extremely high sterilization requirements in fields such as bioengineering, medical and health care, laboratory animals, and pharmaceuticals. Automatic control devices refer to the use of automatic control devices to automatically control certain key parameters in production, so that they can be automatically adjusted back to the value range required by the process.

[0003] A search revealed that Chinese Utility Model Patent Publication No. CN215274754U discloses an automatic control device for cooling circulating water in a water bath sterilizer. The device includes an internal circulation mechanism and an external circulation mechanism. The internal circulation mechanism, located inside the water bath, includes a circulation pump and a first electromagnetic reversing valve, facilitating flexible control of the switching between internal and external circulation of the circulating water. A connecting pipe and a first metering valve control the flow of high-temperature steam during drying. A temperature probe and a second electromagnetic reversing valve improve temperature detection of the circulating water and allow for flexible control of discharge and feeding. The external circulation mechanism, located at the right end of the water bath, includes a filter cartridge and a heat exchanger, facilitating impurity filtration and the recovery of excess heat from the circulating water. A third electromagnetic reversing valve and an inlet pump control the inflow and outflow of the circulating water.

[0004] While the aforementioned improvements to the automatic control device for the cooling circulating water of the water bath sterilizer can facilitate flexible control of the switching between internal and external circulation of the circulating water, control the flow of high-temperature steam during drying, and improve the temperature detection of the circulating water and the flexible control of the switching between discharge and feeding, the current technology is not comprehensive and has the following drawbacks:

[0005] The existing structure is complex and cumbersome to operate. Although the steam in the steam chamber can heat the filtered pure water, the heating speed of the water by steam is slow, which affects the work efficiency. In addition, after the containers in the water bath are sterilized at high temperature, they need to be cooled naturally for a period of time. The cabinet door can only be opened and the containers can be removed after the containers have cooled down to below 30 degrees Celsius. The cooling time of the containers after high temperature sterilization is long, which also affects the work efficiency. Utility Model Content

[0006] The purpose of this invention is to provide an automatic control device for cooling circulating water in a water bath sterilizer. A temperature-controllable heater is installed in the first insulated water storage tank. The heater rapidly heats the filtered water, improving working efficiency. Water is sprayed onto the side wall of the upper cavity through the cooling component, which not only rinses the inner wall of the upper cavity but also rapidly cools the temperature inside the upper cavity, saving the container's cooling time and improving efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic control device for cooling circulating water in a water bath sterilizer, comprising a cabinet and an upper cavity and a lower cavity disposed at the top and bottom of the cabinet's interior. A first insulated water tank and a second insulated water tank are respectively disposed within the lower cavity. A heater is disposed on the bottom wall of the first insulated water tank, and a water temperature sensor is disposed on the side wall of the first insulated water tank. A drainage component, with one end connected to the upper cavity and the other end connected to the first insulated water tank, is disposed on one side wall of the cabinet. A water inlet component, connected to the upper cavity, is disposed on the side wall of the first insulated water tank. A cooling component, with one end connected to the upper cavity and the other end connected to the second insulated water tank, is disposed on the other side wall of the cabinet. A water replenishment component is disposed between the second insulated water tank and the first insulated water tank. A controller is disposed within the lower cavity and on the side wall of the cabinet. One end of the controller is connected to the heater and the water temperature sensor, respectively, and the other end of the controller is connected to the control panel.

[0008] Preferably, the drainage assembly includes a first drain pipe, one end of which is fixed to the outer wall of one side of the cabinet and connected to the bottom of the upper cavity, and the other end of which passes through the side wall of the cabinet and is connected to the top of the first insulated water storage tank. A first filter is provided on the first drain pipe and on the outer wall of the cabinet. A first inlet pump is fixed on the first drain pipe and on the top of the first insulated water storage tank. A first electrically controlled valve is provided on the first drain pipe and between the first inlet pump and the first filter.

[0009] Preferably, the water inlet assembly includes a first water inlet pipe, one end of which is connected to the bottom of the first insulated water storage tank, and the other end of which passes through the side wall of the cabinet and is connected to the top of the upper cavity. A second liquid inlet pump is fixedly installed on the first water inlet pipe and located in the lower cavity, and a second electrically controlled valve is installed on the first water inlet pipe and located outside the second liquid inlet pump.

[0010] Preferably, the cooling assembly includes a second drain pipe, a second inlet pipe, and an annular spray channel. One end of the second drain pipe is fixed to the outer wall of the other side of the cabinet and connected to the bottom of the upper cavity. The other end of the second drain pipe passes through the side wall of the cabinet and connects to the top of the second insulated water tank. A second filter is installed on the second drain pipe and on the outer wall of the cabinet. A third liquid inlet pump is installed on the second drain pipe and between the second filter and the second insulated water tank, fixed to the top wall of the second insulated water tank. The annular spray channel is fixedly installed in the upper cavity near the top. Multiple spray holes are opened on the inclined wall of the annular spray channel. One end of the second inlet pipe is connected to the bottom of the second insulated water tank. The other end of the second inlet pipe passes through the side wall of the cabinet and connects to the annular spray channel. A fourth liquid inlet pump is installed on the second inlet pipe and in the lower cavity.

[0011] Preferably, a first water supply pipe connected to the second water inlet pipe is provided on the second water inlet pipe and located between the annular spray channel and the fourth liquid inlet pump, and a first one-way valve is provided on the first water supply pipe.

[0012] Preferably, the water replenishment component includes a second water supply pipe, one end of which is connected to the bottom of the second insulated water storage tank, and the other end of which is connected to the top of the first insulated water storage tank. A fifth liquid inlet pump is installed on the second water supply pipe and located in the lower cavity, and a second one-way valve is installed on the second water supply pipe and located between the fifth liquid inlet pump and the first insulated water storage tank.

[0013] Preferably, the control circuits of the first inlet pump, the second solenoid valve, and the heater are connected in parallel and connected to one of the signal input terminals of the controller. The control circuits of the second inlet pump and the first solenoid valve are connected in parallel and connected to one of the signal input terminals of the controller. The signal input terminals of the third, fourth, and fifth inlet pumps are all connected to other signal input terminals of the controller. The multiple signal output terminals of the controller are all connected to the control panel signal.

[0014] Preferably, a first manual shut-off valve is provided on the first drain pipe and located between the first filter and the outer wall of the cabinet, and a second manual shut-off valve is provided on the second drain pipe and located between the second filter and the outer wall of the cabinet.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, a temperature-controllable heater is installed at the bottom of the first insulated water storage tank. The temperature of the heater can be flexibly controlled by rotating the knob on the control panel. The temperature controllable setting of the heater can adjust the water temperature during sterilization according to different containers, thereby improving the water bath effect. The heater can quickly heat the filtered water in the first insulated water storage tank, thereby improving work efficiency.

[0017] 2. In this utility model, a cooling component is provided in the upper cavity and near the top. By spraying cold water onto the side wall of the upper cavity through the cooling component, the inner wall of the upper cavity can be rinsed, and the temperature in the upper cavity can be quickly cooled down, saving the cooling time of the container and improving work efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0020] Figure 3 This utility model Figure 1 Internal structure diagram;

[0021] Figure 4 This utility model Figure 2 Internal structure diagram;

[0022] Figure 5 This utility model Figure 2 A schematic diagram of the local external structure;

[0023] Figure 6 This utility model Figure 5 A schematic diagram of the half-section structure of AA;

[0024] Figure 7 This utility model Figure 3 Schematic diagram of the structure of the insulated water storage tank;

[0025] Figure 8 This utility model Figure 7 A schematic diagram of the half-section structure of BB.

[0026] In the picture:

[0027] 1-Cabinet body, 2-Support leg, 3-Upper cavity, 4-Sealing cover, 5-Lower cavity, 6-Sealing door, 7-First insulated water storage tank, 8-First drain pipe, 9-First filter, 10-First manual shut-off valve, 11-First inlet pump, 12-First electric control valve, 13-First water inlet pipe, 14-Second inlet pump, 15-Second electric control valve, 16-Second insulated water storage tank, 17-Second drain pipe, 18-Second filter, 19-Second manual shut-off valve, 20-Third inlet pump, 21-Second inlet pipe, 22-Fourth inlet pump, 23-Circular spray channel, 24-Spray hole, 25-First water supply pipe, 26-First check valve, 27-Second water supply pipe, 28-Fifth inlet pump, 29-Second check valve, 30-Heater, 31-Water temperature sensor, 32-Controller, 33-Control panel, 34-Water level observation window. Detailed Implementation

[0028] 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.

[0029] like Figure 1-8 As shown, an automatic control device for cooling circulating water in a water bath sterilizer includes a cabinet 1, combined with... Figure 1 , Figure 2 and Figure 6 As shown, support legs 2 are fixedly installed at the four corners of the bottom of the cabinet 1. An upper cavity 3 with a top opening is provided on the top inner side of the cabinet 1. A sealing cover 4 for sealing the cabinet 1 is rotatably installed on the top of the cabinet 1. A lower cavity 5 is provided on the bottom inner side of the cabinet 1. Sealing doors 6 for sealing the lower cavity 5 are rotatably installed on the left and right side walls of the cabinet 1. Figure 3 , Figure 4 and Figure 7 As shown, a first insulated water tank 7 and a second insulated water tank 16 are fixedly installed in the lower cavity 5. A heater 30 is installed on the bottom wall of the first insulated water tank 7. Preferably, the temperature of the heater 30 is flexibly controlled by a knob on the control panel 33. The temperature of the heater 30 is controllable, and the water temperature during sterilization can be adjusted according to different containers to improve the water bath effect. The heater 30 rapidly heats the filtered water in the first insulated water tank 7, thereby improving work efficiency. A water temperature sensor 31 is installed on the side wall of the first insulated water tank 7, and a water level observation window 34 is installed on the side wall of the first insulated water tank 7 and located near the water temperature sensor 31.

[0030] Specifically in this embodiment, combined with Figure 1 and Figure 4 As shown, a drainage assembly is provided on one side wall of the cabinet 1, with one end connected to the upper cavity 3 and the other end connected to the first insulated water storage tank 7. Further, the drainage assembly includes a first drain pipe 8. One end of the first drain pipe 8 is fixed to the outer wall of one side of the cabinet 1 and connected to the bottom of the upper cavity 3. The other end of the first drain pipe 8 passes through the side wall of the cabinet 1 and is connected to the top of the first insulated water storage tank 7. A first filter 9 is provided on the first drain pipe 8 and located on the outer wall of the cabinet 1. A first manual shut-off valve 10 is provided on the first drain pipe 8 and located in front of the first filter 9. Preferably, the first manual shut-off valve 10 is used to shut off the liquid in the first drain pipe 8 when the filter element of the first filter 9 is replaced, preventing it from flowing out. A first liquid inlet pump 11 is fixedly provided on the first drain pipe 8 and located on the top of the first insulated water storage tank 7. A first electrically controlled valve 12 is provided on the first drain pipe 8 and located between the first liquid inlet pump 11 and the first filter 9.

[0031] Specifically in this embodiment, combined with Figure 3 and Figure 4 As shown, a water inlet assembly connected to the upper cavity 3 is provided on the side wall of the first insulated water storage tank 7. Further, the water inlet assembly includes a first water inlet pipe 13. One end of the first water inlet pipe 13 is connected to the bottom of the first insulated water storage tank 7, and the other end of the first water inlet pipe 13 passes through the side wall of the cabinet 1 and is connected to the top of the upper cavity 3. A second liquid inlet pump 14 is fixedly installed on the first water inlet pipe 13 and located in the lower cavity 5. A second electrically controlled valve 15 is installed on the first water inlet pipe 13 and located outside the second liquid inlet pump 14. Preferably, the control circuits of the first liquid inlet pump 11, the second electrically controlled valve 15 and the heater 30 are connected in parallel and connected to one of the signal input terminals of the controller 32. The control circuits of the second liquid inlet pump 14 and the first electrically controlled valve 12 are connected in parallel and connected to one of the signal input terminals of the controller 32.

[0032] Specifically in this embodiment, combined with Figure 2 , Figure 3 and Figure 4As shown, a cooling assembly is provided on the other side wall of the cabinet 1, with one end connected to the upper cavity 3 and the other end connected to the second insulated water storage tank 16. Preferably, by spraying cold water onto the side wall of the upper cavity 3 through the cooling assembly, the inner wall of the upper cavity 3 can be rinsed, and the temperature inside the upper cavity 3 can be rapidly cooled, saving the cooling time of the container and improving work efficiency. Further, the cooling assembly includes a second drain pipe 17, a second water inlet pipe 21, and an annular spray channel 23. One end of the second drain pipe 17 is fixed to the outer wall of the other side of the cabinet 1 and connected to the bottom of the upper cavity 3. The other end of the second drain pipe 17 passes through the side wall of the cabinet 1 and is connected to the top of the second insulated water storage tank 16. A second filter 18 is provided on the second drain pipe 17 and on the outer wall of the cabinet 1. A second manual shut-off valve 19 is provided. A third inlet pump 20 is fixed on the top wall of the second insulated water tank 16 and located on the second drain pipe 17 between the second filter 18 and the second insulated water tank 16. The annular spray channel 23 is fixedly installed in the upper cavity 3 near the top. Multiple spray holes 24 are opened on the inclined wall of the annular spray channel 23. One end of the second inlet pipe 21 is connected to the bottom of the second insulated water tank 16, and the other end of the second inlet pipe 21 passes through the side wall of the cabinet 1 and is connected to the annular spray channel 23. A fourth inlet pump 22 is provided on the second inlet pipe 21 and located in the lower cavity 5. Furthermore, a first water supply pipe 25 connected to the second inlet pipe 21 is provided on the second inlet pipe 21 and located between the annular spray channel 23 and the fourth inlet pump 22. A first one-way valve 26 is provided on the first water supply pipe 25.

[0033] Specifically in this embodiment, combined with Figure 3 and Figure 4 As shown, a water replenishment assembly is provided between the second insulated water storage tank 16 and the first insulated water storage tank 7. Further, the water replenishment assembly includes a second water supply pipe 27. One end of the second water supply pipe 27 is connected to the bottom of the second insulated water storage tank 16, and the other end of the second water supply pipe 27 is connected to the top of the first insulated water storage tank 7. A fifth liquid inlet pump 28 is provided on the second water supply pipe 27 and located in the lower cavity 5. A second one-way valve 29 is provided on the second water supply pipe 27 and located between the fifth liquid inlet pump 28 and the first insulated water storage tank 7.

[0034] Specifically in this embodiment, combined with Figure 3 and Figure 4As shown, a controller 32 is installed inside the lower cavity 5 and on the side wall of the cabinet 1. The signal input terminals of the third liquid inlet pump 20, the fourth liquid inlet pump 22 and the fifth liquid inlet pump 28 are all connected to other signal input terminals of the controller 32. The multiple signal output terminals of the controller 32 are all connected to the control panel 33.

[0035] Working principle:

[0036] First, water is added to the upper cavity 3 via an external water source through the first water supply pipe 25 until a certain water level is reached, then the water level is stopped. Next, the first inlet pump 11 is started via the control panel 33. While the first inlet pump 11 is operating, the second solenoid valve 15 is closed, and simultaneously, the heater 30 operates to heat the water stored in the first insulated water tank 7. During the heating process of the water in the first insulated water tank 7 by the heater 30, the container to be sterilized can be placed in the upper cavity 3. After placement, the upper cavity 3 is sealed with the sealing cap 4. During the heating process of the heater 30, the water temperature stored in the first insulated water tank 7 can be observed by the water temperature sensor 31. When the water temperature stored in the first insulated water tank 7 is heated to the temperature for container sterilization, the heater 30 is stopped by the control panel 33, and the second liquid inlet pump 14 is operated. When the second liquid inlet pump 14 is operating, the first electric control valve 12 stops. The second liquid inlet pump 14 operates to transport the high-temperature water in the first insulated water tank 7 to the upper cavity 3 through the first water inlet pipe 13, thereby completing the sterilization of the contents of the upper cavity 3.

[0037] After the sterilization of the contents of the upper cavity 3 is completed, the second inlet pump 14 is stopped via the control panel 33. Then, the third inlet pump 20 and the fourth inlet pump 22 are operated simultaneously via the control panel 33. When the fourth inlet pump 22 is working, it sprays cold water from the second insulated water tank 16 onto the side wall of the upper cavity 2, cleaning the side wall of the upper cavity 2 and rapidly cooling the temperature inside the upper cavity 2. The cold water sprayed on the side wall of the upper cavity 2 is then driven back into the second insulated water tank 16 by the third inlet pump 20, forming a water circulation. When the water level in the first insulated water tank 7 is low as observed through the water level observation window 34, the fifth inlet pump 28 is operated via the control panel 33 to transfer water from the second insulated water tank 16 to the first insulated water tank 7. The operation of the fifth inlet pump 28 is stopped once the water level in the first insulated water tank 7 reaches a suitable height.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic control device for cooling circulating water in a water bath sterilizer, comprising a cabinet and an upper cavity and a lower cavity disposed at the top and bottom of the cabinet interior, characterized in that: The lower cavity is equipped with a first insulated water tank and a second insulated water tank. A heater is installed on the bottom wall of the first insulated water tank, and a water temperature sensor is installed on the side wall of the first insulated water tank. A drainage component with one end connected to the upper cavity and the other end connected to the first insulated water tank is installed on one side wall of the cabinet. A water inlet component connected to the upper cavity is installed on the side wall of the first insulated water tank. A cooling component with one end connected to the upper cavity and the other end connected to the second insulated water tank is installed on the other side wall of the cabinet. A water replenishment component is installed between the second insulated water tank and the first insulated water tank. A controller is installed in the lower cavity and on the side wall of the cabinet. One end of the controller is connected to the heater and the water temperature sensor, and the other end of the controller is connected to the control panel.

2. The automatic control device for cooling circulating water in a water bath sterilizer according to claim 1, characterized in that: The drainage assembly includes a first drain pipe, one end of which is fixed to the outer wall of one side of the cabinet and connected to the bottom of the upper cavity. The other end of the first drain pipe passes through the side wall of the cabinet and is connected to the top of the first insulated water storage tank. A first filter is provided on the first drain pipe and on the outer wall of the cabinet. A first liquid inlet pump is fixed on the first drain pipe and on the top of the first insulated water storage tank. A first electrically controlled valve is provided on the first drain pipe and between the first liquid inlet pump and the first filter.

3. The automatic control device for cooling circulating water in a water bath sterilizer according to claim 2, characterized in that: The water inlet assembly includes a first water inlet pipe, one end of which is connected to the bottom of the first insulated water storage tank, and the other end of which passes through the side wall of the cabinet and is connected to the top of the upper cavity. A second liquid inlet pump is fixedly installed on the first water inlet pipe and located in the lower cavity, and a second electrically controlled valve is installed on the first water inlet pipe and located outside the second liquid inlet pump.

4. The automatic control device for cooling circulating water in a water bath sterilizer according to claim 3, characterized in that: The cooling assembly includes a second drain pipe, a second inlet pipe, and an annular spray channel. One end of the second drain pipe is fixed to the outer wall of the other side of the cabinet and connected to the bottom of the upper cavity. The other end of the second drain pipe passes through the side wall of the cabinet and connects to the top of the second insulated water tank. A second filter is installed on the second drain pipe and on the outer wall of the cabinet. A third liquid inlet pump is installed on the second drain pipe and between the second filter and the second insulated water tank, fixed to the top wall of the second insulated water tank. The annular spray channel is fixedly installed in the upper cavity near the top. Multiple spray holes are opened on the inclined wall of the annular spray channel. One end of the second inlet pipe is connected to the bottom of the second insulated water tank. The other end of the second inlet pipe passes through the side wall of the cabinet and connects to the annular spray channel. A fourth liquid inlet pump is installed on the second inlet pipe and in the lower cavity.

5. The automatic control device for cooling circulating water in a water bath sterilizer according to claim 4, characterized in that: A first water supply pipe connected to the second water inlet pipe is provided on the second water inlet pipe and located between the annular water spray channel and the fourth liquid inlet pump. A first one-way valve is provided on the first water supply pipe.

6. The automatic control device for cooling circulating water in a water bath sterilizer according to claim 5, characterized in that: The water replenishment component includes a second water supply pipe, one end of which is connected to the bottom of the second insulated water storage tank, and the other end of which is connected to the top of the first insulated water storage tank. A fifth liquid inlet pump is installed on the second water supply pipe and located in the lower cavity. A second one-way valve is installed on the second water supply pipe and located between the fifth liquid inlet pump and the first insulated water storage tank.

7. The automatic control device for cooling circulating water in a water bath sterilizer according to claim 6, characterized in that: The control circuits of the first inlet pump, the second solenoid valve, and the heater are connected in parallel and connected to one of the signal input terminals of the controller. The control circuits of the second inlet pump and the first solenoid valve are connected in parallel and connected to one of the signal input terminals of the controller. The signal input terminals of the third, fourth, and fifth inlet pumps are all connected to other signal input terminals of the controller. The multiple signal output terminals of the controller are all connected to the control panel signal.

8. The automatic control device for cooling circulating water in a water bath sterilizer according to claim 7, characterized in that: A first manual shut-off valve is installed on the first drain pipe between the first filter and the outer wall of the cabinet, and a second manual shut-off valve is installed on the second drain pipe between the second filter and the outer wall of the cabinet.

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