Low-temperature freezer drain pipe heating equipment

Abstract

The utility model relates to the technical field of freezer drainage equipment, and discloses low-temperature freezer drainage pipe heating equipment which comprises a conveying pipe, a heating wire and a standby heating wire are arranged in the conveying pipe, a supporting beam is arranged on the inner top wall of the conveying pipe, a fixing clamp is arranged on the supporting beam, and the heating wire and the standby heating wire penetrate through the fixing clamp; the conveying pipe is sleeved with frames, every two frames form a set, a corrugated pipe is arranged between the sets of frames, and cavities are formed in the frames. The heating wire and the standby heating wire are arranged in the conveying pipe, when the main heating wire breaks down, the standby heating wire can immediately take over the heating task, and therefore it is guaranteed that the drainage pipe cannot be blocked due to freezing under any condition, and the supporting beam and the fixing clamp are arranged, so that the drainage pipe is more convenient to use. The stable positioning of the heating wire and the standby heating wire in the conveying pipe is ensured, and the heating wire damage caused by pipeline expansion or contraction is prevented.

Description

Technical Field

[0001] This application relates to the technical field of cold storage drainage equipment, and in particular to a heating device for the drainage pipe of a low-temperature cold storage. Background Technology

[0002] When a cold storage room is in operation, the evaporator inside will produce condensate, or defrost water will be produced after defrosting. If this water is not drained in time, it will affect the normal use of the cold storage room.

[0003] Chinese patent document CN101046346A discloses a drainage device for a freezer, which improves the operability of draining melted water to the outside of the freezer when frost melts in the storage chamber. In a freezer that cools a storage chamber within a body formed of an insulated enclosure to a freezing temperature, and where a machine room is formed in the lower part of the body below the storage chamber, the drainage device includes: a drain pipe extending through the bottom wall of the insulated enclosure; and a flexible drain hose with its base end (A) connected to the drain pipe. The front end (B) of the drain hose is held in a pull-out portion located above the machine room. In this state, the drain hose is retracted into the machine room in a relaxed state, and can be freely pulled out of the body from the pull-out portion within a predetermined range from the front end (B) toward the base end (A).

[0004] In related technologies, to solve the problem of drain pipes freezing in low-temperature environments, heating wires are typically installed inside the drain pipes. These heating wires use electrical heating to prevent the water inside the pipes from freezing, thus keeping the drain unobstructed. However, this solution is not without its drawbacks. If the heating wire is damaged and not replaced in time, ice blockage may occur inside the drain pipe, affecting the normal operation of the drainage system. Summary of the Invention

[0005] To facilitate the normal operation of the drainage system, this application provides a heating device for the drainage pipe of a low-temperature freezer.

[0006] This application provides a heating device for the drain pipe of a low-temperature freezer, which adopts the following technical solution:

[0007] A heating device for a low-temperature freezer drain pipe includes a conveying pipe, in which heating wires and a spare heating wire are respectively installed. A support beam is provided on the inner top wall of the conveying pipe, and a fixing clamp is provided on the support beam. The heating wires and the spare heating wires pass through the fixing clamp. A frame is fitted on the conveying pipe, and multiple frames are provided. The multiple frames are arranged in pairs, and a corrugated pipe is provided between any pair of frames. A cavity is opened inside the frame, and an opening is provided at the top of the frame. A cover plate is hinged to the opening.

[0008] By adopting the above technical solution, heating wires and backup heating wires are respectively installed inside the conveying pipe. When the main heating wire fails, the backup heating wire can immediately take over the heating task, thereby reducing the occurrence of drainage pipe freezing and blockage due to the failure of a single heating wire. Furthermore, by setting support beams and fixing clamps, the heating wires and backup heating wires are ensured to be stably positioned inside the conveying pipe, preventing damage to the heating wires due to pipe expansion or contraction.

[0009] Optionally, the heating wire is located at the upper middle end of the delivery tube, the spare heating wire is located at the lower end of the delivery tube, and the tail ends of the heating wire and the spare heating wire extend through and to the outside of the delivery tube, and are connected to an external power source through their respective plugs and charging cables.

[0010] By adopting the above technical solution, it is easy to connect the heating wire to an external power source, reducing the difficulty of wiring.

[0011] Optionally, the support beam is arc-shaped and fits against the inner top wall of the conveying pipe. Multiple support beams are provided and are arranged at equal intervals on the inner top wall of the conveying pipe. The support beams are fixedly connected to the conveying pipe by air nails.

[0012] By adopting the above technical solution, the stability of the connection between the support beam and the conveying pipe is improved.

[0013] Optionally, the fixing clamp includes a support rod, a sleeve rod, and an inner liner plate. The top end of the support rod is connected to a support beam. The sleeve rod is located at the end of the support rod away from the support beam. The heating wire and the spare heating wire both pass through the center of the sleeve rod, and the inner liner plate is embedded in the inner side of the sleeve rod.

[0014] By adopting the above technical solution, the stability of the installation of the heating wire and the spare heating wire has been improved.

[0015] Optionally, the bottom of the support beam is provided with a threaded hole, the top of the support rod is fitted with a connector, the outer side of the connector is provided with threads, and the support rod is threadedly connected to the threaded hole on the support beam through the connector.

[0016] By adopting the above technical solution, the convenience of connecting the support beam and the support rod is improved.

[0017] Optionally, a slide bar is provided near the inner edge of the conveying pipe in the frame, and a hole is provided between the frame and the slide bar.

[0018] By adopting the above technical solution, the frame can move smoothly on the delivery pipe, making installation and adjustment easier.

[0019] Optionally, the inner edge of the opening is formed by at least two annular steps of different diameters, and the opening is used to connect an external heat pipe.

[0020] By adopting the above technical solution, the setting of the annular step facilitates the installation and fixing of the external heat pipe.

[0021] Optionally, a sealing strip is provided along the inner edge of the cover plate, and a label is provided on the cover plate.

[0022] By adopting the above technical solution, a sealing strip is provided on the inner side of the cover plate to ensure good sealing performance, and a label is marked on the cover plate to facilitate the provision of equipment information.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. A heating wire and a backup heating wire are installed inside the conveying pipe. When the main heating wire fails, the backup heating wire can immediately take over the heating task, thereby reducing the occurrence of drainage pipe freezing and blockage due to the failure of a single heating wire. Furthermore, by setting up support beams and fixing clamps, the heating wire and the backup heating wire are ensured to be stably positioned in the conveying pipe, preventing damage to the heating wire due to pipe expansion or contraction.

[0025] 2. The frame fitted on the conveying pipe is movable so that when freezing occurs at any part of the conveying pipe, the frame can be quickly moved to the affected area. The top opening of each frame is designed to be easy to open so that when freezing is detected, a heat pipe can be quickly connected to the outside and the hot air can be directly transferred to the outer wall of the conveying pipe, ensuring that the ice adhering to the surface of this section of the conveying pipe is eliminated in a short time. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the conveying pipe in this utility model.

[0027] Figure 2 This is a cross-sectional structural diagram of the support beam in this utility model.

[0028] Figure 3 This is a structural schematic diagram of the fixing clamp in this utility model.

[0029] Figure 4 This is a cross-sectional structural diagram of the frame in this utility model.

[0030] Reference numerals: 1. Conveying pipe; 111. Support beam; 1110. Threaded hole; 101. Fixing clamp; 2. Heating wire; 3. Spare heating wire; 4. Frame; 41. Cavity; 401. Sliding bar; 402. Hole; 5. Corrugated pipe; 6. Opening; 7. Cover plate; 71. Label; 8. Support rod; 81. Connector; 9. Sleeve rod; 10. Inner liner. Detailed Implementation

[0031] The embodiments of this application are described in detail below, and examples of the embodiments are shown in the accompanying drawings.

[0032] In the description of this specification, the references to "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the described embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] This application discloses a heating device for the drain pipe of a low-temperature freezer, referring to... Figure 1 and Figure 2 It includes a conveying pipe 1, and a heating wire 2 and a spare heating wire 3 are respectively installed inside the conveying pipe 1. A support beam 111 is installed on the inner top wall of the conveying pipe 1, and a fixing clamp 101 is installed on the support beam 111. The heating wire 2 and the spare heating wire 3 pass through the fixing clamp 101.

[0034] A frame 4 is fitted onto the conveying pipe 1. There are three or more frames 4, which are arranged in pairs. A corrugated pipe 5 is provided between each pair of frames 4. A cavity 41 is opened inside the frame 4, and an opening 6 is provided at the top of the frame 4. A cover plate 7 is hinged to the opening 6. A sealing strip is provided on the inner edge of the cover plate 7, and a label 71 is marked on the cover plate 7. A sealing strip is provided on the inner side of the cover plate to ensure good sealing performance. The label 71 on the cover plate provides equipment information. The inner edge of the opening 6 is composed of at least two annular steps of different diameters, and the opening 6 is used to connect an external heat pipe to realize the transfer of heat energy and the stability of the structure.

[0035] In this application, the delivery pipe 1 is used to guide the drainage in the low-temperature freezer. The heating wire 2 and the spare heating wire 3 are used to prevent the drainage inside the delivery pipe from freezing and to maintain the heating function, thereby ensuring that the delivery pipe will not be blocked due to freezing. The support beam 111 is set on the inner top wall of the delivery pipe 1, and the heating wire 2 and the spare heating wire 3 are supported and fixed by the fixing clamp 101 to ensure their correct position inside the delivery pipe 1.

[0036] Frames 4 are fitted around the outside of the delivery pipe 1, and are arranged in pairs. They can move on the delivery pipe 1. The cavities 41 inside the frames 4 are designed to accommodate thermal expansion and also provide space for heat transfer. Corrugated pipes 5 provide flexible connections between the frames 4, allowing the distance between them to be covered and the heat delivered to the frames 4 to be transferred between them through the corrugated pipes, thus thawing the ice surface in this area. Openings 6 at the top of the frames 4 are designed for connecting external heat pipes, allowing for quick access to external heat sources when needed. The inner edge of the openings 6 has at least two annular steps of different diameters, which helps ensure the stability and sealing of the connection.

[0037] Both heating wire 2 and spare heating wire 3 are U-shaped, which helps to maximize the contact area between the heating element and the inner wall of the delivery tube 1, thereby improving heating efficiency. Heating wire 2 is located at the upper middle end of the delivery tube 1, and spare heating wire 3 is located at the lower end of the delivery tube 1. The tail ends of heating wire 2 and spare heating wire 3 pass through and extend to the outside of the delivery tube 1, and are connected to an external power source through their respective plugs and charging cables, allowing the heating wires to be easily connected to an external power source.

[0038] Reference Figure 1 and Figure 3 The support beam 111 is arc-shaped and fits against the inner top wall of the conveying pipe 1. There are three or more support beams 111, which are arranged at equal intervals on the inner top wall of the conveying pipe 1. The support beams 111 are fixedly connected to the conveying pipe 1 by air nails. In this application, the support beam 111 is arc-shaped. This shape helps to fit better against the inner top wall of the conveying pipe 1, thereby providing uniform support force. The arrangement of three or more support beams 111 at equal intervals on the inner top wall of the conveying pipe 1 can ensure that the heating wire 2 and the spare heating wire 3 are evenly distributed in the conveying pipe, providing a uniform heating effect.

[0039] The fixing clamp 101 includes a support rod 8, a sleeve rod 9, and an inner liner plate 10. The top end of the support rod 8 is connected to the support beam 111. The sleeve rod 9 is fixedly connected to the end of the support rod 8 away from the support beam 111. The sleeve rod 9 is arranged in a U-shape, and both the heating wire 2 and the spare heating wire 3 pass through the center of the sleeve rod 9. The inner liner plate 10 is embedded in the inner side of the sleeve rod 9. A threaded hole 1110 is opened at the bottom of the support beam 111. A connector 81 is fitted onto the top end of the support rod 8. The outer side of the connector 81 is threaded. The support rod 8 is connected to the thread on the support beam 111 through the connector 81. The hole 1110 is threaded. In this application, the top end of the support rod 8 is connected to the support beam 111. This connection method can ensure the stable positioning of the fixing clamp 101 in the conveying pipe 1. The sleeve rod 9 is arranged in a U-shape. The heating wire 2 and the spare heating wire 3 both pass through the center of the sleeve rod 9. This arrangement can ensure that the heating wire is centrally arranged in the conveying pipe 1, improving heating efficiency. The inner liner plate 10 is embedded in the inner side of the sleeve rod 9. This arrangement can provide additional support and protection to prevent the heating wire from shifting or vibrating in the conveying pipe 1. The inner liner plate also serves as heat insulation.

[0040] Reference Figure 4 A slide bar 401 is provided on the inner edge of the frame 4 near the conveying pipe 1, and a hole 402 is provided between the frame 4 and the slide bar 401. In this application, the slide bar 401 is provided on the inner edge of the frame 4 near the conveying pipe 1. This arrangement can ensure that the frame 4 moves smoothly on the conveying pipe 1, which is convenient for installation and adjustment. The hole 402 is provided between the frame 4 and the slide bar 401. These holes are used to fix or adjust the position of the frame 4, and also for heat dissipation, thereby improving the working efficiency of the heating equipment.

[0041] In use, the heating device for the drain pipe of the low-temperature freezer ensures comprehensive heating coverage by installing U-shaped heating wires 2 and spare heating wires 3 inside the conveying pipe 1, located at the upper and lower ends of the conveying pipe, respectively. These heating wires are fixed to equally spaced arc-shaped support beams 111 by fixing clamps 101, and the support beams 111 are fixedly connected to the conveying pipe by air nails, ensuring the stability of the structure. Multiple frames 4 are fitted outside the conveying pipe and connected by corrugated pipes 5, providing additional support and, through cavities 41 and openings 6, allowing for external connection of heat pipes to achieve effective heat transfer. The sliding bar 401 and hole 402 of frame 4 enable the frame to move smoothly and be fixed in place. A corrugated pipe 5 is provided between frames 4 to provide a communication channel, allowing frame 4 to move to the icy surface on the outer wall of conveying pipe 1. Hot air is supplied into frame 4 through the opening 6 at the top of the frame, which quickly melts the icy surface. The system is closed by a hinged cover plate 7, and the sealing strip on the inner side of the cover plate ensures good sealing and prevents heat loss. The entire system is connected to an external power source through the tail end of the heating wire and the spare heating wire, ensuring that the drain pipe 1 will not freeze in low-temperature environments, while optimizing the installation and maintenance process of the equipment.

[0042] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A heating device for the drain pipe of a low-temperature freezer, comprising a conveying pipe (1), characterized in that, The conveying pipe (1) is provided with a heating wire (2) and a spare heating wire (3) respectively. The inner top wall of the conveying pipe (1) is provided with a support beam (111). A fixing clamp (101) is provided on the support beam (111). The heating wire (2) and the spare heating wire (3) pass through the fixing clamp (101). A frame (4) is fitted on the conveying pipe (1). There are three or more frames (4). The three or more frames (4) are in pairs. A corrugated pipe (5) is provided between the frames (4). A cavity (41) is opened inside the frame (4). An opening (6) is provided at the top of the frame (4). A cover plate (7) is hinged on the opening (6).

2. The low-temperature freezer drain pipe heating device according to claim 1, characterized in that, The heating wire (2) and the spare heating wire (3) are both arranged in a U-shape. The heating wire (2) is located at the upper middle end of the conveying pipe (1), and the spare heating wire (3) is located at the lower end of the conveying pipe (1). The tail ends of the heating wire (2) and the spare heating wire (3) extend through and to the outside of the conveying pipe (1), and are connected to an external power source through their respective plugs and charging cables.

3. The low-temperature freezer drain pipe heating device according to claim 1, characterized in that, The support beam (111) is arc-shaped and fits against the inner top wall of the conveying pipe (1). There are three or more support beams (111), which are arranged at equal intervals on the inner top wall of the conveying pipe (1). The support beam (111) is fixedly connected to the conveying pipe (1) by air nails.

4. The low-temperature freezer drain pipe heating device according to claim 1, characterized in that, The fixing clamp (101) consists of a support rod (8), a sleeve rod (9) and an inner liner plate (10). The top end of the support rod (8) is connected to the support beam (111). The sleeve rod (9) is fixedly connected to the end of the support rod (8) away from the support beam (111). The sleeve rod (9) is arranged in a U-shape. The heating wire (2) and the spare heating wire (3) both pass through the center of the sleeve rod (9). The inner liner plate (10) is embedded in the inner side of the sleeve rod (9).

5. The low-temperature freezer drain pipe heating device according to claim 4, characterized in that, The bottom of the support beam (111) is provided with a threaded hole (1110), and the top of the support rod (8) is provided with a connector (81). The outer side of the connector (81) is provided with threads, and the support rod (8) is threadedly connected to the threaded hole (1110) on the support beam (111) through the connector (81).

6. The low-temperature freezer drain pipe heating device according to claim 1, characterized in that, The frame (4) is provided with a slide bar (401) near the inner edge of the conveying pipe (1), and a hole (402) is provided between the frame (4) and the slide bar (401).

7. The low-temperature freezer drain pipe heating device according to claim 1, characterized in that, The inner edge of the opening (6) is formed by at least two annular steps of different diameters, and the opening (6) is used to connect an external heat pipe to achieve heat transfer and structural stability.

8. The low-temperature freezer drain pipe heating device according to claim 1, characterized in that, The cover plate (7) is provided with a sealing strip along its inner edge, and the cover plate (7) is marked with a label (71).

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