Device and process for curing cement by circulating constant temperature water flow

Abstract

The present application relates to a device and process for curing cement by circulating constant temperature water flow, including a curing cabinet, a curing drawer, a specimen box, a water circulation system, and a water supply pipeline; the application can add water to the curing drawer through the water circulation system, and the curing drawers are arranged in a matrix, and the test blocks in the specimen box are immersed layer by layer from the top layer in cooperation with the water supply pipeline to achieve water curing. The present application helps to realize intelligent curing, and various devices cooperate with each other to achieve water curing with more stable curing effect and lower energy consumption.

Description

Technical Field

[0001] The present application belongs to the technical field of engineering test material curing, and specifically relates to a device and process for curing cement by circulating constant temperature water flow. Background Art

[0002] The engineering materials used in actual projects generally require test blocks to be made for material testing. The curing process of the test blocks is a key step related to the credibility of the material test. The quality of test block curing can greatly improve the material performance reflected by the material test. Traditional curing rooms are gradually being replaced by smart laboratories because of their insufficient control accuracy for temperature and humidity. However, if smart laboratories perform comprehensive curing of each test block in terms of parameter control, it will cost a lot of money. When the number of test materials is large, managers may need to make a trade-off between cost and curing quality. Therefore, smart laboratories cannot only focus on achieving intelligence itself. How to achieve efficient and low-cost maintenance by optimizing curing equipment and processes is still a space that needs to be supplemented and improved by existing technologies. Summary of the invention

[0003] In the first aspect, the present invention provides a device for curing cement by circulating constant temperature water flow, which solves the problem that the curing device in the prior art cannot be adapted to the intelligent laboratory. A device for curing cement test blocks by circulating constant temperature water flow comprises:

[0004] A curing cabinet, wherein a plurality of drawer holes are arranged in a matrix on the front of the curing cabinet;

[0005] Maintenance drawers, the number of which matches the drawer holes and are respectively embedded in the drawer holes, and the front of the maintenance drawer is provided with a grabbing hole for a mechanical gripper to grab; the interior of the maintenance drawer is provided with a first partition and a second partition from front to back, so as to divide the interior of the maintenance drawer from front to back into a first area, a second area and a third area; the first partition is a closed rectangular shape, so that the first area and the second area are independent of each other; the second partition also includes an upper partition extending downward from the top surface of the maintenance drawer and a lower partition extending upward from the bottom surface of the maintenance drawer to be staggered and connected with the upper partition, and the upper partition and the lower partition are also provided with a middle partition that can divide the third area into a water supply area and a hydrophobic area;

[0006] A specimen box, the specimen box is located in the second area; the specimen box also includes an upper curing cabin and a lower slag discharge cabin; the curing cabin is provided with an opening for specimen entry and exit in the front, water holes for communication with the second area are provided on the back and sides, a grabbing hole is provided on the top surface, and strip supports for erecting cement test blocks are provided on the bottom surface, and slag discharge holes for communication with the slag discharge cabin are provided between the strip supports;

[0007] A water circulation system, the water circulation system also includes a circulation pump, a heating device, a refrigeration device and a temperature sensor;

[0008] A water supply pipeline, comprising a water supply pipe, a diversion pipe, a water distribution pipe, a water collection pipe and a water tank; the water supply pipe is connected to the circulation pump and supplies water to the water supply area of ​​the uppermost maintenance drawer through the diversion pipe; between each row of maintenance drawers, a diversion pipe is provided at the bottom of the hydrophobic area of ​​the maintenance drawer on the upper layer, and the lower end of the diversion pipe faces the water supply area of ​​the maintenance drawer on the lower layer; a water collection pipe is provided at the bottom of the hydrophobic area of ​​the maintenance drawer on the lower layer, and the water collection pipe is communicated with the water tank, and the temperature sensor is arranged at the bottom of the water tank and in the maintenance drawer on the middle layer.

[0009] Furthermore, the mechanical gripper comprises:

[0010] The robotic arm is driven by a motor to move forward, backward, up and down;

[0011] There are two sets of actuator cylinders, which are connected to the mechanical arm and are provided with a telescopic arm that can be extended horizontally;

[0012] The clamping jaws are in two groups and each group of clamping jaws is respectively connected to a group of telescopic arms; each group of clamping jaws comprises a pair of right-angle clamping plates arranged opposite to each other, and convex edges are arranged on the outer sides of the right-angle clamping plates near the end positions.

[0013] Furthermore, the grabbing hole of the maintenance cabin is located at the center of the upper end of the top surface, and a partition plate is provided downward on both sides of the grabbing hole to divide the interior into three maintenance units, and a strip hole is provided on the upper end of the partition plate, and the strip holes are located on both sides of the grabbing hole.

[0014] Furthermore, the strip supports and slag discharge holes are located on the bottom surface of each curing unit.

[0015] Furthermore, a baffle is provided inside each curing unit, and the baffle is connected to the partition plate or the side of the curing cabin at the front end.

[0016] In the second aspect, the present application provides a circulating constant temperature water flow curing cement process, which can ensure the cleanliness of the water body during the curing process and improve the curing quality, and specifically includes the following steps:

[0017] Step 1: The mechanical gripper takes out the curing drawer, lifts the specimen box containing the cement test block, puts the specimen box into the curing cabin, and then pushes the curing drawer into the curing cabinet;

[0018] Step 2: Pour water into the water tank. The temperature sensor measures the temperature of the water in the water tank and determines the difference with the standard curing temperature. If the water temperature is greater than the standard curing temperature, the refrigeration device is started to lower the water temperature to the standard curing temperature; if the water temperature is less than the standard curing temperature, the heating device is started to raise the water temperature to the standard curing temperature.

[0019] Step 3: Start the circulation pump, which continuously supplies water to the water supply area of ​​the uppermost maintenance drawer through the water supply pipe until the water collection pipe connected to the lowermost maintenance drawer collects water;

[0020] Step 4: Reduce the circulation pump power to reduce the water supply speed;

[0021] Step 5: Measure the difference between the temperature sensor at the bottom of the sink and the temperature sensor in the maintenance drawer on the middle layer. When the temperature difference exceeds the set range, increase the power of the circulation pump until the temperature difference returns to the set range; when the temperature difference is within the set range, maintain the power of the circulation pump in step 4 and continue to supply water.

[0022] Due to the adoption of the above technical solution, the beneficial effects of this application are as follows:

[0023] 1. This application helps to achieve intelligent maintenance. This application adopts an efficient maintenance configuration of a maintenance cabinet and a maintenance drawer, which can achieve the maintenance of multiple test blocks in a small space, help the miniaturization of the overall maintenance device, and simplify the scheduling steps of the instrument gripper.

[0024] 2. The various devices of the present application cooperate with each other to achieve running water curing with more stable curing effect and lower energy consumption. The present application uses a complete immersion method to cure the cement test block. After placing the cement test block in the test block box, the curing drawer is pushed into the curing cabinet. The diverter pipe on the back of the curing cabinet first supplies water to the water supply area of ​​the curing drawer on the top layer. The water flow in the water supply area enters the second area without immediately entering the hydrophobic area. When the water in the second area floods the test box, the water height exceeds the lower partition of the hydrophobic area and flows to the hydrophobic area, and then flows to other curing drawers in the same row through the diverter pipe in sequence. Therefore, after the running water passes through the water supply cycle: on the one hand, the water body that always submerges the test block provides a stable water environment for the test block. Since the chemical substances contained in the cement test block may react with water to produce impurities in the curing water, it may affect the curing quality of the test block. Moreover, if the curing water is not replaced for a long time, the water body will become turbid, bacteria will be produced, and the environment in the laboratory will be affected. Therefore, the flowing curing water can ensure the cleanliness of the curing water while providing stable curing conditions. Secondly, flowing curing water helps to clean cement residues. The residues generated during the curing process of cement test blocks will settle in the test box. The present application designs a strip support slag discharge hole. The strip support can be designed with different lengths to create a gap with the first partition. This gap can be used to guide the residues so that the residues enter the slag discharge compartment through the slag discharge hole under the drive of running water. Thirdly, the present application only needs to lift the water tank water to the top curing drawer to achieve water curing by gravity. The circulating pump can reduce its own operating energy consumption by working in cycles.

[0025] 3. As a preferred embodiment of the present application, the present application can plan the flow route of the curing water by designing the curing unit. The present application can control the water inflow of the water supply area by designing the flow rate and flow rate. The flowing water flows into the test box through the water holes near the water supply area, driving the water inside the test box to flow. The internal water then flows to other curing units in turn through the openings or strip holes, and finally flows to the lower partition to form a complete flow route.

[0026] 4. The circulating constant temperature water flow curing cement process provided in this application can solve the pollution problem caused by long-term use of curing water and realize the slag discharge function. In this application, the temperature of curing water is used as the room temperature, and the difference between it and the standard curing temperature can quickly make the cement test block enter the standard curing state, reflecting the superiority of intelligent curing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0028] Figure 1 A front view of a device for curing cement test blocks by circulating constant temperature water provided in the present application;

[0029] Figure 2 This is a schematic diagram of the structure of the maintenance drawer described in this application;

[0030] Figure 3 It is a schematic diagram of the structure of the test piece box described in this application;

[0031] Figure 4 A rear view of a device for curing cement test blocks by circulating constant temperature water provided in the present application;

[0032] Figure 5 This is a schematic diagram of the structure of the mechanical gripper in this application;

[0033] In the attached picture:

[0034] 1. Maintenance cabinet;

[0035] 2. Maintenance drawer; 21; Grab hole; 22. First partition; 23. Second partition; 231. Upper partition; 232. Lower partition; 233. Middle partition; 24. First area; 25. Second area; 26. Third area; 261. Water supply area; 262. Water distribution area;

[0036] 3. Test piece box; 31. Curing chamber; 311. Opening; 312. Water hole; 313. Strip support; 314. Slag discharge hole; 32. Slag discharge chamber;

[0037] 4. Water circulation system; 41. Circulation pump; 42. Heating device; 43. Refrigeration device;

[0038] 5. Water supply pipeline; 51. Water supply pipe; 52. Diversion pipe; 53. Water distribution pipe; 54. Water collection pipe; 55. Sink;

[0039] 6. Mechanical gripper; 61. Mechanical arm; 62. Actuator cylinder; 621. Telescopic arm; 63. Clamping claw; 631. Right-angle clamping plate; 632. Raised edge;

[0040] 7. Partition plate; 71. Curing unit; 711. Baffle plate; 72. Strip hole. DETAILED DESCRIPTION

[0041] As attached Figure 1 ~Attached Figure 5 As shown, based on the background technology, in order to optimize the cement test block curing device to achieve efficient and low-cost curing, the present application provides a device for curing cement test blocks by circulating constant temperature water flow, including:

[0042] A curing cabinet 1, wherein a plurality of drawer holes are arranged in a matrix on the front of the curing cabinet 1.

[0043] Since the present application is mainly aimed at intelligent laboratories, the maintenance drawers 2 arranged in a matrix can reduce the difficulty of scheduling the robotic arm and achieve precise and orderly automated scheduling.

[0044] Maintenance drawers 2, the number of which matches the number of the maintenance drawers 2 and are respectively embedded in the drawer holes, and the front of the maintenance drawer 2 is provided with a grabbing hole 21 for the mechanical gripper 6 to grab; the interior of the maintenance drawer 2 is provided with a first partition 22 and a second partition 23 from front to back, so as to divide the interior of the maintenance drawer 2 from front to back into a first area 4, a second area 25 and a third area 26; the first partition 22 is a closed rectangular shape, so that the first area 4 and the second area 25 are independent of each other; the second partition 23 also includes an upper partition 231 extending downward from the top surface of the maintenance drawer 2 and a lower partition 232 extending upward from the bottom surface of the maintenance drawer 2 to be staggered with the upper partition 231, and the upper partition 231 and the lower partition 232 are also provided with a middle partition 233 that can divide the third area 26 into a water supply area 261 and a hydrophobic area.

[0045] The first partition 22 separates the first area 4 and the second area 25 into two independent areas, that is, the water in the second area 25 will not flow into the first area 4. The first area 4 is retained to provide space for the mechanical gripper 6 to extend into, and also to prevent water flow. In the present application, the second partition 23 includes three parts. It should be noted that the maintenance drawer 2 in the present application is not provided with a sealed top surface, and the top surface refers to the plane flush with the upper side. The lower partition 232 in the second partition 23 will no longer extend upward after the height is firmly connected to the upper partition 231. The upper edge of the upper partition 231 and the upper edge of the lower partition 232 should maintain a height difference so that water can flow continuously. The middle partition 233 in the second partition 23 divides the third area 26 into a water supply area 261 and a hydrophobic area. It should be noted that the middle partition 233 can also extend to the second area 25 and connect to the specimen box 3 to further play a diversion role.

[0046] The specimen box 3 is located in the second area 25; the specimen box 3 also includes an upper curing chamber 31 and a lower slag discharge chamber 32; the curing chamber 31 is provided with an opening 311 in front for specimen entry and exit, and a water hole 312 for communicating with the second area 25 is provided on the back and sides, a grabbing hole 21 is provided on the top surface, and a strip support 313 for mounting a cement test block is provided on the bottom surface, and a slag discharge hole 314 for communicating with the slag discharge chamber 32 is provided between the strip supports 313.

[0047] The specimen box 3 is not connected to the curing drawer 2, and the mechanical gripper 6 can lift the specimen box 3 through the gripping hole 21, and then take and place the curing specimen. In the present application, the strip support 313 can be designed with different lengths, the purpose is to form a gap with the first partition 22 or the back of the curing chamber 31, and form a guide channel for the residue. After the residue is precipitated, it flows into the slag discharge chamber 32 with the water flow.

[0048] The water circulation system 4 further includes a circulation pump 41, a heating device 42, a refrigeration device 43 and a temperature sensor. The water circulation system 4 can be implemented by existing technology, and multiple temperature sensors can be designed to simultaneously detect the temperature in the water tank 55 and the outlet water temperature of the circulation pump 41, as well as the water temperature of one or two layers or several maintenance drawers 2 in the middle.

[0049] Water supply pipe 51 5, the water supply pipe 51 5 includes a water supply pipe 51, a diverter pipe 52, a water distribution pipe 53, a water collection pipe 54 and a water tank 55; the water supply pipe 51 is connected to the circulation pump 41 and supplies water to the water supply area 261 of the uppermost maintenance drawer 2 through the diverter pipe 52; between each column of maintenance drawers 2, a diverter pipe 53 is provided at the bottom of the hydrophobic area of ​​the maintenance drawer 2 on the upper layer, and the lower end of the diverter pipe 53 faces the water supply area 261 of the maintenance drawer 2 on the lower layer; a water collection pipe 54 is provided at the bottom of the hydrophobic area of ​​the maintenance drawer 2 on the lower layer, and the water collection pipe 54 is communicated with the water tank 55.

[0050] Through the water distribution pipe 53, the water flow for maintenance can be circulated in a step-by-step manner. The process of the water flow flowing downward step by step does not require energy consumption, so the circulation pump 41 can perform periodic work to reduce energy consumption.

[0051] As a preferred embodiment of the present application, the mechanical gripper 6 includes: a mechanical arm 61, which is driven by a motor to move forward and backward and up and down.

[0052] There are two sets of actuating cylinders 62 , which are connected to the mechanical arm 61 . The actuating cylinders 62 are provided with a telescopic arm 621 that can be telescoped horizontally.

[0053] There are two groups of clamping jaws 63, and each group of clamping jaws 63 is connected to a group of telescopic arms 621 respectively; each group of clamping jaws 63 includes a pair of oppositely arranged right-angle clamping plates 631, and a convex ridge 632 is provided on the outer side of the right-angle clamping plates 631 near the end position.

[0054] The telescopic arm 621 can be connected to a bolt plate, and connected to the right-angle clamp plate 631 by the bolt plate. The mechanical gripper 6 only needs two actions, one is to push and pull the maintenance drawer 2 horizontally, and the other is to lift and place the test piece box 3 vertically. The two actions have the same principle, that is, the mechanical gripper 6 is stretched into the grabbing hole 21 and then spread to both sides, and the convex ridge 632 is abutted against the inner side of the grabbing hole 21 to complete the lifting or pulling action. The pushing action can be achieved by abutting the convex ridge 632 against the outer side of the grabbing hole 21 of the maintenance drawer 2.

[0055] As a preferred embodiment of the present application, the grabbing hole 21 of the maintenance cabin 31 is located at the center of the front end of the top surface, and a partition plate 7 is provided downward on both sides of the grabbing hole 21 to divide the interior into three maintenance units 71, and a strip hole 72 is provided on the upper end of the partition plate 7, and the strip hole 72 is located on both sides of the grabbing hole 21.

[0056] Three test blocks can be cured in each test box 3 at the same time. In this embodiment, the strip hole 72 has the function of guiding the water flow and providing a gripping position for the mechanical gripper 6. The strip hole 72 can increase the passage of water from the water supply area 261 to the hydrophobic area, plan the flow route, and improve the slag discharge effect and water circulation effect.

[0057] In a specific example of the above implementation, a group of strip supports 313 and slag discharge holes 314 are provided on the bottom surface of each curing unit 71, which can provide a slag discharge channel for each cement test block, further improving the slag discharge effect.

[0058] In a preferred embodiment of the above embodiment, a baffle 711 is provided inside each curing unit 71, and the baffle 711 is connected to the partition plate 7 or the side of the curing chamber 31 at the front end. The baffle 711 gradually expands outward at the position of the opening 311, and the baffle 711 is only connected to the partition plate 7 or the side of the curing chamber 31 at the front end. The entire baffle 711 forms a cantilever structure. Under normal circumstances, the baffle 711 does not contact the cement test block. There is a gap between the baffle 711 and the cement test block. On the one hand, the flow of water can squeeze the baffle 711 to shake and increase fluidity; on the other hand, the baffle 711 can prevent the cement test block from displacing too much, and can also effectively prevent the cement test block from rubbing against the baffle 711 and being damaged when shaking, because the baffle 711 is surrounded by water, which can act as a buffer.

[0059] The present application also provides a circulating constant temperature water flow curing cement process, comprising the following steps:

[0060] Step 1: The mechanical gripper takes out the curing drawer, lifts the specimen box containing the cement test block, puts the specimen box into the curing cabin, and then pushes the curing drawer into the curing cabinet.

[0061] As attached Figure 1As shown, the maintenance cabinet of this embodiment has a total of 40 maintenance drawers arranged in a 10×4 matrix.

[0062] Step 2: Pour water into the water tank. The temperature sensor measures the temperature of the water in the water tank and determines the difference with the standard curing temperature. If the water temperature is higher than the standard curing temperature, the refrigeration device is started to lower the water temperature to the standard curing temperature; if the water temperature is lower than the standard curing temperature, the heating device is started to raise the water temperature to the standard curing temperature.

[0063] In this embodiment, a range can be set for the water temperature to be greater than or less than the standard curing temperature. If the range is exceeded, the water temperature is considered to be higher. In this embodiment, the range of greater than or less than is 2°C.

[0064] Step 3: Start the circulation pump, which will continuously supply water to the water supply area of ​​the uppermost maintenance drawer through the water supply pipe until the water collection pipe connected to the lowermost maintenance drawer collects water.

[0065] Step 4: Reduce the circulation pump power to reduce the water supply speed.

[0066] The water supply process in step 3 can be started at a faster speed. After the first cycle, that is, after the water collection pipe connected to the bottom maintenance drawer collects water, the water supply speed can be reduced, and the flow rate of the water in the maintenance drawer can be reduced. Excessive flow rate of water will cause water erosion and risk damaging the specimen.

[0067] Step 5: Measure the difference between the temperature sensor at the bottom of the sink and the temperature sensor in the maintenance drawer on the middle layer. When the temperature difference exceeds the set range, increase the power of the circulation pump until the temperature difference returns to the set range; when the temperature difference is within the set range, maintain the power of the circulation pump in step 4 and continue to supply water.

[0068] This application can be used in smart laboratories. The above steps can be used to automatically control the power and start time of the circulation pump through automated design. The circulation pump requires a large power for the first water supply, and only low power is required for running water maintenance in the subsequent continuous water supply process.

[0069] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0070] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A device for curing cement test blocks by circulating constant temperature water flow, characterized in that: include: A curing cabinet, wherein a plurality of drawer holes are arranged in a matrix on the front of the curing cabinet; Maintenance drawers, the number of which matches the drawer holes and are respectively embedded in the drawer holes, and the front of the maintenance drawer is provided with a grabbing hole for a mechanical gripper to grab; the interior of the maintenance drawer is provided with a first partition and a second partition from front to back, so as to divide the interior of the maintenance drawer from front to back into a first area, a second area and a third area; the first partition is a closed rectangular shape, so that the first area and the second area are independent of each other; the second partition also includes an upper partition extending downward from the top surface of the maintenance drawer and a lower partition extending upward from the bottom surface of the maintenance drawer to be staggered with the upper partition, and the upper partition and the lower partition are also provided with a middle partition at the staggered connection that can separate the third area into a water supply area and a hydrophobic area; A specimen box, the specimen box is located in the second area; the specimen box also includes an upper curing cabin and a lower slag discharge cabin; the curing cabin is provided with an opening for specimen entry and exit in the front, water holes for communication with the second area are provided on the back and sides, a grabbing hole is provided on the top surface, and strip supports for erecting cement test blocks are provided on the bottom surface, and slag discharge holes for communication with the slag discharge cabin are provided between the strip supports; A water circulation system, the water circulation system also includes a circulation pump, a heating device, a refrigeration device and a temperature sensor; A water supply pipeline, comprising a water supply pipe, a diversion pipe, a water distribution pipe, a water collection pipe and a water tank; the water supply pipe is connected to the circulation pump and supplies water to the water supply area of ​​the uppermost maintenance drawer through the diversion pipe; between each row of maintenance drawers, a diversion pipe is provided at the bottom of the hydrophobic area of ​​the maintenance drawer on the upper layer, and the lower end of the diversion pipe faces the water supply area of ​​the maintenance drawer on the lower layer; a water collection pipe is provided at the bottom of the hydrophobic area of ​​the maintenance drawer on the lower layer, and the water collection pipe is communicated with the water tank, and the temperature sensor is arranged at the bottom of the water tank and in the maintenance drawer on the middle layer.

2. The device for curing cement test blocks by circulating constant temperature water flow according to claim 1, characterized in that: The mechanical gripper comprises: The robotic arm is driven by a motor to move forward, backward, up and down; There are two sets of actuator cylinders, which are connected to the mechanical arm and are provided with a telescopic arm that can be extended horizontally; The clamping jaws are in two groups and each group of clamping jaws is respectively connected to a group of telescopic arms; each group of clamping jaws comprises a pair of right-angle clamping plates arranged opposite to each other, and convex edges are arranged on the outer sides of the right-angle clamping plates near the end positions.

3. The device for curing cement test blocks by circulating constant temperature water flow according to claim 1, characterized in that: The grabbing hole of the maintenance cabin is located at the center of the front end of the top surface, and a partition plate is provided downward on both sides of the grabbing hole to divide the interior into three maintenance units. The upper end of the partition plate is provided with a strip hole, and the strip holes are located on both sides of the grabbing hole.

4. The device for curing cement test blocks by circulating constant temperature water flow according to claim 3, characterized in that: The strip supports and slag discharge holes are located on the bottom surface of each curing unit.

5. The device for curing cement test blocks by circulating constant temperature water flow according to claim 4, characterized in that: A baffle is provided inside each curing unit, and the baffle is connected to the partition plate or the side of the curing cabin at the front end.

6. A process for curing cement with circulating constant temperature water flow according to the device according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: The mechanical gripper takes out the curing drawer, lifts the specimen box containing the cement test block, puts the specimen box into the curing cabin, and then pushes the curing drawer into the curing cabinet; Step 2: Pour water into the water tank. The temperature sensor measures the temperature of the water in the water tank and determines the difference with the standard curing temperature. If the water temperature is greater than the standard curing temperature, the refrigeration device is started to lower the water temperature to the standard curing temperature; if the water temperature is less than the standard curing temperature, the heating device is started to raise the water temperature to the standard curing temperature. Step 3: Start the circulation pump, which continuously supplies water to the water supply area of ​​the uppermost maintenance drawer through the water supply pipe until the water collection pipe connected to the lowermost maintenance drawer collects water; Step 4: Reduce the circulation pump power to reduce the water supply speed; Step 5: Measure the difference between the temperature sensor at the bottom of the sink and the temperature sensor in the maintenance drawer on the middle layer. When the temperature difference exceeds the set range, increase the power of the circulation pump until the temperature difference returns to the set range; when the temperature difference is within the set range, maintain the power of the circulation pump in step 4 and continue to supply water.

Images