A cascade refrigeration cycle device
By designing spray components and automatic moving nozzles in the stacked refrigeration cycle device, the problems of cumbersome and easy to miss sealing inspection in the prior art are solved, and more efficient detection and cleaning are achieved, reducing the workload of staff.
Patent Information
- Application Number
- CN202421555354.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-07-03
AI Technical Summary
During the later use of the existing stacked refrigeration cycle device, the sealing inspection of the connecting parts of the pipeline and solenoid valve is cumbersome and easy to miss, which increases the workload of staff.
A composite refrigeration circulation device is designed, including a spraying assembly, through the operation of the water pump, the leakage detector is uniformly sprayed on the outside of the pipe of the device, and the driving motor drives the screw and the sliding frame to realize the automatic movement of the spray head and reduce manual operation.
The comprehensive spraying inspection of the outside of the pipeline of the composite refrigeration circulation device is realized, which reduces the workload of staff, improves the comprehensiveness and efficiency of inspection, and keeps the environment clean by flushing and cleaning the outside of the device and reduces the impact of dust on the device.
Smart Images
Figure CN222733035U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of refrigeration equipment, in particular to a cascade refrigeration cycle device. Background Art
[0002] The loop is to divide the large total temperature difference into two or several sections, select the appropriate refrigerant cycle according to the temperature zone of each section, and then stack them up, using the refrigeration capacity of the high-temperature stage to bear the condensation load of the low-temperature stage, so as to obtain a lower refrigeration temperature. Cascade refrigeration is a special form of vapor compression refrigeration, usually composed of two to three independent vapor compression refrigeration cycles with different working temperature zones. Taking the two-stage cascade refrigeration cycle as an example, it consists of a high-temperature stage and a low-temperature stage. Medium-temperature refrigerant is used in the high-temperature stage, and low-temperature refrigerant is used in the low-temperature stage, forming a cycle of two single-stage compression refrigeration systems working in cascade.
[0003] For cascade refrigeration cycle devices, it is particularly important to check the sealing of the pipes and solenoid valve connections during their later use. The commonly used inspection method is for staff to use a spray bottle to spray a special leak detection agent on the pipe joints and welding parts. If there is a leak, the leak detection agent will produce bubbles or other visible reactions, thereby indicating the location of the leak. This one-by-one spraying detection method requires staff to spray around the device one by one, which not only increases the workload of staff, but the manual spraying method is also prone to omissions and incomplete inspections.
[0004] Therefore, it is necessary to provide a new cascade refrigeration cycle device to solve the above technical problems. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a cascade refrigeration cycle device.
[0006] The cascade refrigeration cycle device provided by the utility model comprises: a cascade cycle refrigerator body, a bottom plate is provided at the bottom of the cascade cycle refrigerator body, a support frame is provided on the top of the bottom plate, and a spraying assembly is provided on the support frame;
[0007] The spray assembly includes a sliding frame, the sliding frame is slidably sleeved on the support rod in the support frame, a threaded screw is inserted inside the sliding frame, an annular water pipe is arranged inside the sliding frame, and a plurality of connected and evenly distributed spray heads are arranged inside the annular water pipe;
[0008] The two ends of the screw rod are respectively connected to the bottom plate and the support frame for rotation. The top end of the screw rod is provided with a driving motor, and the driving motor is connected to the support frame.
[0009] Preferably, a liquid storage tank and a water storage tank are respectively provided on one side of the top of the base plate away from the cascade cycle refrigeration machine body, a connecting three-way pipe is provided between the liquid storage tank and the water storage tank, a first solenoid valve is provided on the branch pipe of the three-way pipe close to the liquid storage tank, and a second solenoid valve is provided on the branch pipe of the three-way pipe close to the water storage tank.
[0010] Preferably, another branch of the three-way pipe is provided with a connected water pump, the water pump is arranged on the bottom plate, and the output end of the water pump is provided with a connected water outlet pipe.
[0011] Preferably, a connecting hose is provided in the water outlet pipe, and one end of the connecting hose away from the water outlet pipe passes through the sliding frame and is connected to the inside of the annular water conduit.
[0012] Preferably, a through hole is opened inside the sliding frame, and the inner wall of the through hole abuts against the outer wall of the connecting hose.
[0013] Preferably, a collecting groove is provided inside the bottom plate at a position corresponding to the cascade cycle refrigeration machine body, a connecting drain pipe is inserted inside the collecting groove, one end of the drain pipe passes through the outside of the bottom plate, and a control valve is provided at the position of the drain pipe located outside the bottom plate.
[0014] Compared with the related art, the cascade refrigeration cycle device provided by the utility model has the following beneficial effects:
[0015] 1. The utility model is provided with a spray assembly, and in later use, the leakage detection agent can be quickly and evenly sprayed on the outside of the pipeline of the cascade cycle refrigerator body through the work of the water pump, without the need for the staff to spray one by one around the device. Not only the spraying is more comprehensive, but also the workload of the staff can be reduced, so that the staff can make the inspection, repair and maintenance of the device more convenient and comprehensive in the later stage.
[0016] 2. The utility model connects the three-way pipe with the water storage tank. Later, the staff can lift up and control the water pump to work, so that the water source in the water storage tank is introduced into the nozzle and sprayed to the cascade cycle refrigerator body, so as to achieve the flushing and cleaning of the outer wall of the device, make the external environment of the device cleaner, and reduce the influence of dust accumulation on the normal operation and use of the device in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A structural schematic diagram of a preferred embodiment of the cascade refrigeration cycle device provided by the utility model;
[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the bottom plate and its connecting parts shown;
[0019] Figure 3 for Figure 2 A schematic diagram of the structure of the spray assembly and connecting parts shown;
[0020] Figure 4 for Figure 2 A schematic diagram of the structure of the spray assembly shown;
[0021] Figure 5 for Figure 2 The schematic diagram of the structure of the water pump, liquid storage tank and water storage tank shown;
[0022] Figure 6 for Figure 2 Schematic diagram of the structure of the base plate shown.
[0023] Numbers in the figure: 1. Cascade cycle refrigerator body; 2. Bottom plate; 21. Support frame; 22. Collecting tank; 23. Drain pipe; 24. Control valve; 3. Spray assembly; 31. Sliding frame; 311. Through hole; 32. Screw rod; 321. Drive motor; 33. Annular water guide pipe; 331. Spray head; 4. Water pump; 41. Three-way pipe; 411. First solenoid valve; 412. Second solenoid valve; 42. Water outlet pipe; 43. Connecting hose; 5. Liquid storage tank; 6. Water storage tank. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0025] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.
[0026] See also Figures 1 to 6 The utility model provides a cascade refrigeration cycle device, which includes a cascade cycle refrigerator body 1, wherein the cascade cycle refrigerator body 1 is the prior art.
[0027] In the embodiments of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A bottom plate 2 is provided at the bottom of the cascade cycle refrigerator body 1, a support frame 21 is provided on the top of the bottom plate 2, and a spray assembly 3 is provided on the support frame 21; the spray assembly 3 includes a sliding frame 31, the sliding frame 31 is slidably mounted on the support rod in the support frame 21, a threaded screw rod 32 is inserted into the interior of the sliding frame 31, an annular water pipe 33 is provided inside the sliding frame 31, and a plurality of connected and evenly distributed spray heads 331 are provided inside the annular water pipe 33; both ends of the screw rod 32 are respectively connected to the rotation of the bottom plate 2 and the support frame 21, a driving motor 321 is provided at the top of the screw rod 32, and the driving motor 321 is connected to the support frame 21.
[0028] It should be noted that: through the setting of the spray component, when the device is used later, when it is necessary to detect the pipe joints and welding points of the cascade cycle refrigerator body 1, the drive motor 321 can be controlled to drive the screw rod 32 to rotate, so that the screw rod 32 drives the sliding frame 31 through the threaded structure. At this time, the moving sliding frame 31 can drive the internal spray head 331 to move, and in this process, the leakage detection agent can be sprayed on the outside of the pipeline of the cascade cycle refrigerator body 1 through the work of the water pump 4 to detect the leakage point. There is no need for the staff to spray one by one around the device. Not only is the spraying more comprehensive, but the workload of the staff can also be reduced, so that the staff can inspect, repair and maintain the device more conveniently and comprehensively in the future.
[0029] In the embodiments of the present invention, please refer to Figure 2 , Figure 3 and Figure 5 A liquid storage tank 5 and a water storage tank 6 are respectively provided on the side of the top of the bottom plate 2 away from the cascade cycle refrigerator body 1, a connecting three-way pipe 41 is provided between the liquid storage tank 5 and the water storage tank 6, a first solenoid valve 411 is provided on the branch pipe of the three-way pipe 41 close to the liquid storage tank 5, and a second solenoid valve 412 is provided on the branch pipe of the three-way pipe 41 close to the water storage tank 6.
[0030] It should be noted that: through the arrangement of the three-way pipe 41, the first solenoid valve 411 and the second solenoid valve 412, when the water pump 4 is working later, by controlling the working states of the corresponding first solenoid valve 411 and the second solenoid valve 412, the staff can accurately connect the water pump 4 with the corresponding liquid storage tank 5 and water storage tank 6 as needed later, so that the water pump 4 can transport different liquids as needed later, without the need to set up two water pumps 4;
[0031] At the same time, during the later use, after the staff completes the spraying detection of the cascade cycle refrigerator body 1, the first solenoid valve 411 can be closed and the second solenoid valve 412 can be opened. At this time, the working water pump 4 can introduce the water source in the water storage tank 6 into the nozzle 331 and spray the cascade cycle refrigerator body 1, thereby flushing the outer wall of the device and cleaning the leakage detection agent and dust, so as to make the external environment of the device cleaner and reduce the influence of the leakage detection agent and dust on the normal operation of the device in the later stage.
[0032] In the embodiments of the present invention, please refer to Figure 1 , Figure 4 and Figure 5 The other branch of the three-way pipe 41 is provided with a connected water pump 4, the water pump 4 is arranged on the bottom plate 2, and the output end of the water pump 4 is provided with a connected water outlet pipe 42, the water outlet pipe 42 is provided with a connected connecting hose 43, and the end of the connecting hose 43 away from the water outlet pipe 42 passes through the sliding frame 31 and is connected to the inside of the annular water guide pipe 33, the sliding frame 31 is provided with a through hole 311, and the inner wall of the through hole 311 is against the outer wall of the connecting hose 43.
[0033] It should be noted that: by setting the through hole 311, it is convenient for the connecting hose 43 to pass through the sliding frame 31 from the side wall of the sliding frame 31 to communicate with the internal annular water pipe 33, thereby reducing the phenomenon that when the sliding frame 31 drives the annular water pipe 33 to move, when the position of the annular water pipe 33 moves to the highest or lowest point, the connecting part of the connecting hose 43 and the annular water pipe 33 is excessively bent, resulting in the connecting hose 43 being folded and blocked, so that the connecting hose 43 can be more smoothly transmitted for liquid;
[0034] By setting the water pump 4, when the water pump 4 is working, the liquid in the liquid storage tank 5 and the water storage pipe can be output to the annular water conduit 33, providing driving force for the flow of the liquid.
[0035] In the embodiments of the present invention, please refer to Figure 1 and Figure 6 A collecting tank 22 is provided inside the bottom plate 2 at a position corresponding to the cascade cycle refrigerator body 1, and a connected drain pipe 23 is inserted inside the collecting tank 22. One end of the drain pipe 23 passes through the outside of the bottom plate 2, and a control valve 24 is provided at the position of the drain pipe 23 outside the bottom plate 2.
[0036] It should be noted that: by providing a collection tank 22 inside the bottom plate 2, during later use, the collection tank 22 located at the bottom of the cascade cycle refrigerator body 1 can collect the leakage detection agent during detection and the water source during cleaning, and then discharge them through the drain pipe 23, thereby reducing the phenomenon of random splashing of liquid when the device is detected and cleaned, which can facilitate the staff to centrally handle it later.
[0037] The working principle of the cascade refrigeration cycle device provided by the utility model is as follows:
[0038] When the device is used later, the cascade cycle refrigerator body 1 can be first moved to a desired position, and the device can be connected to the desired use environment through a pipeline. After the device is installed, when the device needs to be used, the first solenoid valve 411 can be opened first, and the water pump 4 can be controlled to work;
[0039] At this time, the working water pump 4 can introduce the leakage detection agent in the liquid storage tank 5 into the annular water pipe 33 and the nozzle 331 through the three-way pipe 41, and the leakage detection agent can be sprayed through the nozzle 331 on the joints and welding points of the external pipeline of the cascade cycle refrigerator body 1, and in this process, the driving motor 321 can also be controlled to work, and the working driving motor 321 can drive the screw rod 32 to rotate, and then the screw rod 32 can drive the sliding frame 31 to slide on the support frame 21 through the threaded structure, and the sliding sliding frame 31 can bring The nozzle 331 inside the cascade refrigerator is moved, and in this process, the nozzle 331 can spray the outside of the cascade refrigerator more comprehensively, without the need for the staff to spray one by one around the device. Not only is the spraying more comprehensive, but the workload of the staff can also be reduced. After the spraying of the leak detection agent is completed, the staff can judge the sealing effect of the pipe joints and welding points by observing whether the sprayed leak detection agent generates bubbles, which can facilitate the staff to detect the installation of the device. At the same time, when the device needs to be maintained later, it can also be detected by spraying the leak detection agent;
[0040] At the same time, by connecting the three-way pipe 41 with the water storage tank 6, during use, after the spraying of the leakage detection agent is completed or the outside of the device needs to be cleaned independently, the first solenoid valve 411 can be closed and the second solenoid valve 412 can be opened. At this time, the working water pump 4 can guide the water source in the water storage tank 6 into the nozzle 331 and spray it to the cascade cycle refrigeration machine body 1, so as to achieve the flushing of the outer wall of the device and complete the cleaning of the leakage detection agent and the dust on the outer wall of the device, so as to make the external environment of the device tidier, thereby reducing the influence of dust accumulation on the normal operation of the device in the later stage.
[0041] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.
[0042] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A cascade refrigeration cycle device, characterized in that: include: A cascade cycle refrigerator body (1), wherein a bottom plate (2) is provided at the bottom of the cascade cycle refrigerator body (1), a support frame (21) is provided at the top of the bottom plate (2), and a spraying assembly (3) is provided on the support frame (21); The spray assembly (3) comprises a sliding frame (31), the sliding frame (31) is slidably sleeved on a support rod in a support frame (21), a threaded screw (32) is inserted into the interior of the sliding frame (31), an annular water pipe (33) is provided inside the sliding frame (31), and a plurality of connected and evenly distributed spray heads (331) are provided inside the annular water pipe (33); The two ends of the screw rod (32) are respectively connected to the bottom plate (2) and the support frame (21) for rotation, and the top end of the screw rod (32) is provided with a driving motor (321), and the driving motor (321) is connected to the support frame (21).
2. The cascade refrigeration cycle device according to claim 1, characterized in that: A liquid storage tank (5) and a water storage tank (6) are respectively provided on the side of the top of the bottom plate (2) away from the cascade cycle refrigerator body (1); a three-way pipe (41) is provided between the liquid storage tank (5) and the water storage tank (6); a first solenoid valve (411) is provided on the branch pipe of the three-way pipe (41) close to the liquid storage tank (5); and a second solenoid valve (412) is provided on the branch pipe of the three-way pipe (41) close to the water storage tank (6).
3. The cascade refrigeration cycle device according to claim 2, characterized in that: The other branch of the three-way pipe (41) is provided with a connected water pump (4), the water pump (4) is arranged on the bottom plate (2), and the output end of the water pump (4) is provided with a connected water outlet pipe (42).
4. The cascade refrigeration cycle device according to claim 3, characterized in that: A connecting hose (43) is provided in the water outlet pipe (42), and one end of the connecting hose (43) away from the water outlet pipe (42) passes through the sliding frame (31) and is connected to the inside of the annular water conduit (33).
5. The cascade refrigeration cycle device according to claim 4, characterized in that: A through hole (311) is provided inside the sliding frame (31), and the inner wall of the through hole (311) abuts against the outer wall of the connecting hose (43).
6. The cascade refrigeration cycle device according to claim 1, characterized in that: A collecting groove (22) is provided inside the bottom plate (2) at a position corresponding to the cascade cycle refrigerator body (1), a connected drain pipe (23) is inserted inside the collecting groove (22), one end of the drain pipe (23) passes through the outside of the bottom plate (2), and a control valve (24) is provided at a position of the drain pipe (23) located outside the bottom plate (2).