Energy-saving evaporator built-in heat recovery device
By designing a support frame and limiting slider, modular disassembly and assembly of the plate heat exchanger in the built-in heat recovery device of the energy-saving evaporator are realized, solving the problem of inconvenient disassembly and assembly, reducing maintenance costs and time, and improving the practicality of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO KAIERXIN REFRIGERATION EQUIP CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-07
AI Technical Summary
The existing energy-saving evaporator with built-in heat recovery device is inconvenient to disassemble and assemble due to its small internal space, which increases maintenance time and cost.
The plate heat exchanger is modularly assembled and disassembled using a support frame, combined with a limit slider and threaded rod design, allowing for maintenance or replacement of the plate heat exchanger without disassembling the entire unit.
This significantly reduces maintenance costs and time, and improves the practicality and convenience of the device.
Smart Images

Figure CN224470899U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of heat recovery devices, and in particular to a heat recovery device built into an energy-saving evaporator. Background Technology
[0002] An energy-saving evaporator with a built-in heat recovery device is a piece of equipment designed to improve energy efficiency by reducing external energy consumption through the recovery of waste heat during the evaporation process. This device reduces overall energy consumption and dependence on external energy sources by recovering waste heat and using it to preheat the liquid or gas entering the evaporator. In this way, the equipment's operating efficiency is improved, energy waste is reduced, and it is more environmentally friendly.
[0003] However, when using an energy-saving evaporator with a built-in heat recovery device, sometimes the heat exchanger may accumulate dirt inside due to long-term use or be damaged by external factors. Due to the small internal space of the device, it is inconvenient to disassemble and maintain it, which requires more time to maintain it and reduces the convenience of subsequent maintenance. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides an energy-saving evaporator with built-in heat recovery device.
[0005] This utility model is achieved using the following technical solution: an energy-saving evaporator with a built-in heat recovery device, including an evaporator, a connecting pipe fixedly connected to the left end of the evaporator, a protective shell fixedly connected to the lower end of the evaporator, a rotating frame rotatably connected to the inner wall of the protective shell, a fixing block fixedly connected to the upper end of the rotating frame, a threaded rod threadedly connected to the inner wall of the fixing block, and an installation component provided on the inner wall of the protective shell.
[0006] The installation assembly includes a support frame, a limit baffle fixedly connected to the surface of the support frame, a limit shaft fixedly connected to the upper end of the support frame, a plate heat exchanger snapped onto the surface of the limit shaft, a sealing sleeve fixedly connected to the left end of the plate heat exchanger, a handle fixedly connected to the right end of the support frame, a fixing frame fixedly connected to the inner wall of the support frame, a bidirectional screw rotatably connected to the surface of the fixing frame, a limit slider threadedly connected to the surface of the bidirectional screw, a driven gear fixedly connected to the surface of the bidirectional screw, a drive gear meshing at the right end of the driven gear, and a pulley rotatably connected to the lower end of the support frame.
[0007] The above technical solution uses a support frame to drive the plate heat exchanger for modular disassembly and assembly, and a limit slider and other parts to provide limit for the device. This design enables the plate heat exchanger to be repaired or replaced without disassembling the entire device when maintenance is required, which greatly reduces maintenance costs and time and improves the overall practicality of the device.
[0008] As a further improvement to the above solution, the surface of the sealing sleeve is engaged with the inner wall of the connecting pipe, and the surface of the support frame is slidably connected to the inner wall of the protective shell.
[0009] The above technical solution provides limits for the subsequent sliding of the plate heat exchanger inside the protective shell and the connection between the sealing sleeve and the connecting pipe, making the use of the subsequent device more stable and convenient.
[0010] As a further improvement to the above solution, the lower end of the pulley slides on the inner wall of the protective shell, and the surface of the limiting baffle is slidably connected to the inner wall of the protective shell.
[0011] As a further improvement to the above solution, the surface of the limiting slider is engaged with the inner wall of the protective shell, and the surface of the limiting slider is slidably connected to the inner wall of the support frame.
[0012] The above technical solution provides a stable connection and limit for the sliding of the limiting slider, making it more convenient for the subsequent operation of the limiting slider to snap into the inner wall of the protective shell and provide a limit for the support frame.
[0013] As a further improvement to the above scheme, the plate heat exchanger is located at the upper end of the support frame.
[0014] As a further improvement to the above solution, the surface of the threaded rod is threadedly connected to the inner wall of the protective housing.
[0015] As a further improvement to the above solution, the surface of the drive gear is rotatably connected to the inner wall of the support frame.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] This invention releases the limiting effect on the rotating frame by rotating the threaded rod to separate it from the protective shell. The rotating frame can then be pulled to level it. Next, the drive gear is activated, causing the driven gear to drive the bidirectional screw to rotate. Simultaneously, the limiting slider on the surface of the bidirectional screw moves on the surface of the screw under the constraint of the support frame, thus separating it from the inner wall of the protective shell and releasing the sliding limitation on the support frame. Then, pulling the handle causes the support frame and plate heat exchanger to slide to the right, while the limiting baffle prevents the support frame from sliding. The system provides a limit switch to prevent excessive sliding. After the plate heat exchanger slides out with the support frame, it can pull the plate heat exchanger upwards a certain distance to separate it from the limit shaft, thus allowing the plate heat exchanger to be removed for cleaning and maintenance. After the plate heat exchanger is maintained, it is put back in, and then the support frame is pushed to drive the pulley to slide back along the preset track for reset. After reset, the drive gear is rotated in the opposite direction to drive the limit slider to extend again, thus limiting the position of the support frame again. This completes the disassembly and maintenance of the plate heat exchanger.
[0018] This invention starts the evaporator to work, and then the heat generated by the evaporator enters the plate heat exchanger through the connecting pipe and under the seal of the sealing sleeve. Then, the plate heat exchanger achieves efficient heat exchange through its multi-layer plate structure, transferring the waste heat to the cold medium such as cold water or air, completing the heat energy recovery, and returning it for subsequent preheating so that it can be used for subsequent devices. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall cross-sectional structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the structure of some parts of this utility model;
[0022] Figure 4 This is a schematic diagram of the installation component structure of this utility model;
[0023] Figure 5 This is a schematic diagram of the specific component structure of the mounting assembly of this utility model;
[0024] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.
[0025] Explanation of key symbols:
[0026] 1. Evaporator; 2. Connecting pipe; 3. Protective shell; 4. Rotating frame; 5. Fixing block; 6. Threaded rod; 7. Mounting assembly; 701. Support frame; 702. Limiting baffle; 703. Limiting shaft; 704. Plate heat exchanger; 705. Sealing sleeve; 706. Handle; 707. Fixing frame; 708. Double-acting screw; 709. Limiting slider; 710. Driven gear; 711. Drive gear; 712. Pulley. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0028] Example:
[0029] Please combine Figure 1-6 An energy-saving evaporator with built-in heat recovery device according to this embodiment includes an evaporator 1, a connecting pipe 2 fixedly connected to the left end of the evaporator 1, a protective shell 3 fixedly connected to the lower end of the evaporator 1, a rotating frame 4 rotatably connected to the inner wall of the protective shell 3, a fixing block 5 fixedly connected to the upper end of the rotating frame 4, a threaded rod 6 threadedly connected to the inner wall of the fixing block 5, and an installation component 7 provided on the inner wall of the protective shell 3.
[0030] Mounting assembly 7 includes a support frame 701, a limit baffle 702 fixedly connected to the surface of the support frame 701, a limit shaft 703 fixedly connected to the upper end of the support frame 701, a plate heat exchanger 704 snapped onto the surface of the limit shaft 703, a sealing sleeve 705 fixedly connected to the left end of the plate heat exchanger 704, a handle 706 fixedly connected to the right end of the support frame 701, a fixing frame 707 fixedly connected to the inner wall of the support frame 701, a double-acting screw 708 rotatably connected to the surface of the fixing frame 707, and a limit slide threaded onto the surface of the double-acting screw 708. Block 709 and the surface of the bidirectional screw 708 are fixedly connected to a driven gear 710. The right end of the driven gear 710 is meshed with a drive gear 711. The lower end of the support frame 701 is rotatably connected to a pulley 712. The support frame 701 is used to drive the plate heat exchanger 704 for modular disassembly and assembly, and the limit slider 709 and other parts provide limit for the device. This design allows the plate heat exchanger 704 to be repaired or replaced without disassembling the entire device when maintenance is required, which greatly reduces maintenance costs and time and improves the overall practicality of the device.
[0031] The surface of the sealing sleeve 705 is engaged with the inner wall of the connecting pipe 2, and the surface of the support frame 701 is slidably connected with the inner wall of the protective shell 3.
[0032] The lower end of the pulley 712 slides on the inner wall of the protective housing 3, and the surface of the limiting baffle 702 is slidably connected to the inner wall of the protective housing 3.
[0033] The surface of the limiting slider 709 engages with the inner wall of the protective housing 3, and the surface of the limiting slider 709 slides with the inner wall of the support frame 701. This structure provides a stable connection and limit for the sliding of the limiting slider 709, making it more convenient for the subsequent operation of the limiting slider 709 engaging with the inner wall of the protective housing 3 and providing a limit for the support frame 701.
[0034] The plate heat exchanger 704 is located at the upper end of the support frame 701.
[0035] The surface of the threaded rod 6 is threadedly connected to the inner wall of the protective housing 3.
[0036] The surface of the drive gear 711 is rotatably connected to the inner wall of the support frame 701.
[0037] The implementation principle of the energy-saving evaporator built-in heat recovery device in this embodiment is as follows: When using the device, the evaporator 1 is started first. Then, the heat generated by the evaporator 1 enters the plate heat exchanger 704 through the connecting pipe 2 and under the seal of the sealing sleeve 705. Subsequently, the plate heat exchanger 704 achieves efficient heat exchange through its multi-layer plate structure, transferring the waste heat to the cold medium such as cold water or air, completing the heat energy recovery, and returning it for subsequent preheating. When the plate heat exchanger 704 needs cleaning or maintenance, the threaded rod 6 is first rotated to... It separates from the protective shell 3, thereby releasing the restriction on the rotating frame 4. At this point, the rotating frame 4 can be pulled to flatten it. Then, the drive gear 711 is turned to drive the driven gear 710 to drive the bidirectional screw 708 to rotate. At the same time, the limiting slider 709 on the surface of the bidirectional screw 708 moves on the surface of the bidirectional screw 708 under the limitation of the support frame 701, thereby separating it from the inner wall of the protective shell 3 and releasing the sliding restriction on the support frame 701. Then, the handle 706 is pulled to drive the support frame 701 to engage with the plate heat exchanger. Plate heat exchanger 704 slides to the right, while limit baffle 702 limits the sliding of support frame 701 to prevent excessive sliding. After support frame 701 drives plate heat exchanger 704 out, it can be pulled upward a certain distance to separate it from limit shaft 703, thereby removing plate heat exchanger 704 for cleaning and maintenance. After maintenance of plate heat exchanger 704 is completed, it is put back, and then support frame 701 is pushed to drive pulley 712 to slide back along the preset track for reset. After reset, it rotates in the opposite direction to drive the plate heat exchanger. Gear 711 drives the limiting slider 709 to extend again, thereby restricting the position of the support frame 701 again. This completes the disassembly and maintenance of the plate heat exchanger 704. The device uses the support frame 701 to drive the plate heat exchanger 704 for modular disassembly and assembly, and the limiting slider 709 and other parts to provide limiting for the device. This design allows the plate heat exchanger 704 to be repaired or replaced without disassembling the entire device when maintenance is required, which greatly reduces maintenance costs and time and improves the overall practicality of the device.
[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. An energy-saving evaporator with a built-in heat recovery device, characterized in that, Includes an evaporator (1), with a connecting pipe (2) fixedly connected to the left end of the evaporator (1), a protective shell (3) fixedly connected to the lower end of the evaporator (1), a rotating frame (4) rotatably connected to the inner wall of the protective shell (3), a fixing block (5) fixedly connected to the upper end of the rotating frame (4), a threaded rod (6) threadedly connected to the inner wall of the fixing block (5), and an installation assembly (7) provided on the inner wall of the protective shell (3). The mounting assembly (7) includes a support frame (701), a limiting baffle (702) fixedly connected to the surface of the support frame (701), a limiting shaft (703) fixedly connected to the upper end of the support frame (701), a plate heat exchanger (704) snapped onto the surface of the limiting shaft (703), a sealing sleeve (705) fixedly connected to the left end of the plate heat exchanger (704), and a handle (706) fixedly connected to the right end of the support frame (701). A fixed frame (707) is fixedly connected to the inner wall of the frame (701). A bidirectional screw (708) is rotatably connected to the surface of the fixed frame (707). A limit slider (709) is threadedly connected to the surface of the bidirectional screw (708). A driven gear (710) is fixedly connected to the surface of the bidirectional screw (708). A drive gear (711) meshes with the right end of the driven gear (710). A pulley (712) is rotatably connected to the lower end of the support frame (701).
2. The energy-saving evaporator with built-in heat recovery device as described in claim 1, characterized in that: The surface of the sealing sleeve (705) is engaged with the inner wall of the connecting pipe (2), and the surface of the support frame (701) is slidably connected with the inner wall of the protective shell (3).
3. The energy-saving evaporator with built-in heat recovery device as described in claim 2, characterized in that: The lower end of the pulley (712) slides on the inner wall of the protective shell (3), and the surface of the limiting baffle (702) is slidably connected to the inner wall of the protective shell (3).
4. The energy-saving evaporator with built-in heat recovery device as described in claim 3, characterized in that: The surface of the limiting slider (709) engages with the inner wall of the protective shell (3), and the surface of the limiting slider (709) slides with the inner wall of the support frame (701).
5. The energy-saving evaporator with built-in heat recovery device as described in claim 4, characterized in that: The plate heat exchanger (704) is located at the upper end of the support frame (701).
6. The energy-saving evaporator with built-in heat recovery device as described in claim 5, characterized in that: The surface of the threaded rod (6) is threadedly connected to the inner wall of the protective shell (3).
7. The energy-saving evaporator with built-in heat recovery device as described in claim 6, characterized in that: The surface of the drive gear (711) is rotatably connected to the inner wall of the support frame (701).