Anti-freezing device of heat supply pipe network

Abstract

The utility model relates to the technical field of anti-freezing of heat supply pipe networks, and provides an anti-freezing device of a heat supply pipe network, which comprises an anti-freezing box, and an insulation board is hinged to the top of the anti-freezing box. Through the driving force of the motor, the threaded rod, the threaded sleeve, the connecting plate, the hollow plate, the reset spring, the sealing block, the limiting rod and other assemblies are driven to be matched with one another, the motor fixed in the anti-freezing box is started, and therefore the threaded rod fixed to the tail end of the output shaft is driven to rotate; the threaded rod rotates to drive the threaded sleeve with the threads on the circumferential face to do linear motion on the circumferential face of the limiting rod, meanwhile, the connecting plate fixed to the front side face is driven to move, and when the pipelines need to be heated for freezing prevention, the pipelines of different specifications can be heated according to the diameters of the pipelines. The technical problem that in the prior art, when the pipelines are subjected to heating anti-freezing, heating anti-freezing cannot be conducted on different pipelines according to the diameters of the pipelines is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of antifreeze technology for heating pipe networks, and more specifically, to an antifreeze device for heating pipe networks. Background Technology

[0002] In cold regions, winter temperatures often drop below zero degrees Celsius. For example, in most parts of northern my country, the average winter temperature can reach -10°C or even lower. When heating networks are in such low-temperature environments, the water inside the pipes can easily freeze if it stops flowing. Water expands by about 9% when it freezes, and this expansion exerts enormous pressure on pipes, valves, joints, and other components.

[0003] According to a public announcement (publication number: CN222597864U), an antifreeze device for heating pipe networks used in thermal power plants includes heat pipes, an upper antifreeze box, and a lower antifreeze box. Upper and lower antifreeze boxes have upper and lower pipe fitting sealing layers respectively located on the middle of their respective ends. A fan body is installed on the inner surface of the air outlet, and a heating plate is installed inside the mounting groove. A control panel is located in the middle of the heating plate, and a connecting block is located on the middle of the other end of the heating plate. A heating lamp is installed on the inner side of the bottom surface of the heating plate. By sealing and heating the heat pipes, effective antifreeze measures are provided. The internal heating temperature can be adjusted to avoid overheating and prolonged damage to the heating device. It also effectively achieves all-around sealing, ensuring reasonable air convection and preventing internal condensation. Furthermore, the device can be raised and lowered according to the height of the heat pipes, effectively improving the overall antifreeze efficiency of the heat pipes.

[0004] In the aforementioned application, when heating and preventing freezing of pipelines, it is not possible to heat and prevent freezing of different pipelines according to their diameter, which needs to be improved. Therefore, we propose an antifreeze device for heating pipeline networks. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide an antifreeze device for heating pipe networks, which solves the problem in the related art that it is impossible to heat and prevent freezing of different pipes according to their diameter when heating and preventing freezing of pipes.

[0006] According to one aspect, at least one embodiment of this disclosure provides an antifreeze device for a heating network, including an antifreeze box, an insulation board hinged to the top of the antifreeze box, an inlet pipe opening on the side of the antifreeze box, a heating lamp provided on the inner wall of the antifreeze box, and an adaptable clamping mechanism provided inside the antifreeze box.

[0007] The adaptable clamping mechanism includes a motor, which is fixedly connected to the inner wall of the freezer box. A threaded rod is fixedly connected to the end of the motor's output shaft. A threaded sleeve is threadedly connected to the circumferential surface of the threaded rod. A connecting plate is fixedly connected to the front side of the threaded sleeve. A hollow plate is fixedly connected to the top of the connecting plate. A return spring is fixedly connected to the bottom of the inner wall of the hollow plate. A sealing block is fixedly connected to the end of the return spring away from the hollow plate. A limit rod is fixedly connected to the bottom of the inner wall of the freezer box. The above design is beneficial for clamping pipes of different diameters.

[0008] For example, in at least one embodiment of the present disclosure, a heating pipe network antifreeze device is provided, which further includes: a connecting spring fixedly connected to the inner wall of the inlet, and a roller fixedly connected to the end of the connecting spring away from the inner wall of the inlet. The roller is designed to be able to roll on the circumference of the pipe according to the diameter of the pipe when pipes of different specifications enter the antifreeze box through the inlet, thereby clamping them.

[0009] The side section of the threaded sleeve is set to a rectangle. The threaded sleeve is slidably connected to the circumferential surface of the limiting rod. There are two threaded sleeves. The above design is conducive to making the threaded sleeves move in a straight line.

[0010] The number of reset springs is set to several, and they are arranged in a linear array at the bottom of the inner wall of the hollow plate. The initial state of the reset springs is set to a relaxed state. The above design is beneficial because when the pipe is no longer heated for antifreeze, the reset springs can drive the sealing block to reset according to their own elasticity. At the same time, the sealing block can be slid to a certain position on the inner wall of the hollow plate according to the diameter of the pipe to limit its movement.

[0011] The sealing block is slidably connected to the inner wall of the hollow plate, the side section of the hollow plate is set to be concave, and the initial state of the connecting spring is set to be relaxed. The above design helps to enhance the stability of the sliding of the sealing block.

[0012] The number of adaptable clamping mechanisms is set to two, and they are symmetrical to each other along the vertical central axis at the bottom of the inner wall of the antifreeze box. The sealing block is slidably connected to the inner wall of the antifreeze box. The sliding of the sealing block on the inner wall of the antifreeze box is beneficial to fit the circumferential surface of the pipe and prevent hot air leakage.

[0013] According to another aspect, at least one embodiment of this disclosure also provides an antifreeze device for a heating network, including an airflow guiding mechanism configured inside the antifreeze box. The airflow guiding mechanism includes a guide plate, which is fixedly connected to the top of the heating lamp. The above design is beneficial for concentrating the flow of hot air in one direction.

[0014] For example, in at least one embodiment of the present disclosure, an antifreeze device for a heating network is provided, which further includes: a sealing plate is fixedly connected to the side of the connecting plate. The above design is beneficial to restricting the space for hot air circulation.

[0015] The side section of the guide plate is set to be semi-circular, and the heating lamp is located inside the guide plate. The above design helps to prevent hot air from spreading. The number of guide plates is set to two, and they are symmetrical to each other along the vertical central axis of the bottom of the inner wall of the antifreeze box, so that they are concentrated on the circumferential surface of the pipe for flow.

[0016] The sealing plate is slidably connected to the inner wall of the freezer box. There are two sealing plates, which are symmetrical to each other along the vertical central axis of the side of the freezer box. This design is beneficial because when the connecting plate moves, it drives the sealing plate to move, thereby compressing the space for hot air circulation.

[0017] The beneficial effects of the embodiments disclosed herein are as follows:

[0018] 1. In this utility model, the driving force of the motor drives the threaded rod, threaded sleeve, connecting plate, hollow plate, return spring, sealing block, limit rod and other components to cooperate with each other, realize the start of the motor fixed inside the antifreeze box, thereby driving the threaded rod fixed at the end of the output shaft to rotate. The rotation of the threaded rod causes the threaded sleeve with threads on the circumferential surface to move linearly on the circumferential surface of the limit rod, and at the same time drive the connecting plate fixed on the front side to move. When it is necessary to heat and prevent freezing of the pipeline, different specifications of pipelines can be heated according to the pipeline diameter.

[0019] 2. In this utility model, the movement of the connecting plate drives the guide plate, sealing plate and other components to cooperate with each other. When the worker starts the heating lamp, the generated hot air flows through the top guide plate to the circumference of the pipe, preventing it from spreading over a large area. At the same time, when the connecting plate moves, it drives the sealing plate fixed on the side to slide along the inner wall of the antifreeze box towards the pipe. When heating and antifreezing the pipe, the worker can concentrate the hot air near the pipe for faster heating. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0021] Figure 1 This is a structural schematic diagram of the three-dimensional appearance of the present invention from a first-person perspective;

[0022] Figure 2 This is a first-person three-dimensional cross-sectional structural schematic diagram of the present invention;

[0023] Figure 3 This is a three-dimensional structural diagram of the sealing block of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the limiting rod of this utility model;

[0025] Figure 5 This utility model Figure 1 A three-dimensional magnified structural diagram of A in the diagram;

[0026] In the diagram: 1. Antifreeze box; 2. Insulation board; 3. Adaptable clamping mechanism; 31. Motor; 32. Threaded rod; 33. Threaded sleeve; 34. Connecting plate; 35. Hollow plate; 36. Return spring; 37. Sealing block; 38. Limiting rod; 39. Connecting spring; 310. Roller; 4. Airflow guiding mechanism; 41. Guide plate; 42. Sealing plate; 5. Heating lamp; 6. Inlet pipe. Detailed Implementation

[0027] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0028] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0030] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] like Figures 1-5 As shown, it illustrates an antifreeze device for a heating network in one embodiment of the present disclosure, including an antifreeze box 1, an insulation plate 2 hinged to the top of the antifreeze box 1, an inlet 6 on the side of the antifreeze box 1, a heating lamp 5 on the inner wall of the antifreeze box 1, and an adaptable clamping mechanism 3 inside the antifreeze box 1.

[0034] The adaptable clamping mechanism 3 includes a motor 31, which is fixedly connected to the inner wall of the antifreeze box 1. A threaded rod 32 is fixedly connected to the end of the output shaft of the motor 31. A threaded sleeve 33 is threadedly connected to the circumferential surface of the threaded rod 32. A connecting plate 34 is fixedly connected to the front side of the threaded sleeve 33. A hollow plate 35 is fixedly connected to the top of the connecting plate 34. A return spring 36 is fixedly connected to the bottom of the inner wall of the hollow plate 35. A sealing block 37 is fixedly connected to the end of the return spring 36 away from the hollow plate 35. A limit rod 38 is fixedly connected to the bottom of the inner wall of the antifreeze box 1. The above design is beneficial for clamping pipes of different diameters.

[0035] In some examples, the following is also included: a connecting spring 39 is fixedly connected to the inner wall of the inlet 6, and a roller 310 is fixedly connected to the end of the connecting spring 39 away from the inner wall of the inlet 6. The design of the roller 310 is beneficial to the fact that when pipes of different specifications enter the antifreeze box 1 through the inlet 6, the roller 310 can roll on the circumferential surface of the pipe according to the diameter of the pipe, thereby clamping it.

[0036] The side section of the threaded sleeve 33 is set to a rectangle. The threaded sleeve 33 is slidably connected to the circumferential surface of the limiting rod 38. Two threaded sleeves 33 are provided. The above design is conducive to making the threaded sleeves 33 move in a straight line.

[0037] The number of reset springs 36 is set to several, and they are arranged in a linear array at the bottom of the inner wall of the hollow plate 35. The initial state of the reset springs 36 is set to a relaxed state. The above design is beneficial because when the pipe is no longer heated for antifreeze, the reset springs 36 can drive the sealing block 37 to reset according to their own elasticity. At the same time, the sealing block 37 can slide to a certain position on the inner wall of the hollow plate 35 according to the diameter of the pipe to limit it.

[0038] The sealing block 37 is slidably connected to the inner wall of the hollow plate 35. The side section of the hollow plate 35 is set to be concave. The initial state of the connecting spring 39 is set to be relaxed. The above design helps to enhance the sliding stability of the sealing block 37.

[0039] The number of clamping mechanisms 3 is set to two, and they are symmetrical to each other along the vertical central axis at the bottom of the inner wall of the antifreeze box 1. The sealing block 37 is slidably connected to the inner wall of the antifreeze box 1. The sliding of the sealing block 37 on the inner wall of the antifreeze box 1 is beneficial to the circumferential surface of the pipe and prevents hot air leakage.

[0040] For example, such as Figures 1-5As shown, when heating pipes of different specifications is required, the operator inserts the pipe at a slight angle into the inlet 6 on the side of the freezer box 1. When the pipe enters the inlet 6, it contacts the roller 310 fixed to the other end of the connecting spring 39. At this time, the roller 310 is subjected to compressive force, which puts the connecting spring 39 in a taut state and causes the roller 310 to retract. The operator continues to push the pipe into the freezer box 1. After the pipe has entered the freezer box 1 for a certain distance, the circumferential surface of the pipe squeezes all the rollers 310, thus straightening the pipe and allowing it to fully enter the freezer box 1. Then, the operator starts the motor 31 fixed inside the freezer box 1, which drives the threaded rod 32 fixed to the end of the output shaft to rotate. The rotation of the threaded rod 32 drives the threaded sleeve 33 on the circumferential surface to rotate. The limit rod 38 moves linearly on its circumference, simultaneously driving the connecting plate 34 fixed on the front side to move. The movement of the connecting plate 34 drives the hollow plate 35 fixed at the bottom to move. The movement of the hollow plate 35 drives the return spring 36 fixed at the bottom of the inner wall to move. When the return spring 36 moves, it drives the sealing block 37 fixed at the other end to move. At the same time, when the sealing block 37 moves to a certain position, it contacts the circumference of the pipe. As the motor 31 continues to move, the sealing block 37 is squeezed by the pipe, and at the same time, the sealing block 37 slides on the inner wall of the hollow plate 35, thereby squeezing the return spring 36 into a taut state. When the sealing block 37 fits against the circumference of the pipe, the motor 31 stops moving, and the sealing block 37 reduces the range of the inlet 6. At this time, the operator turns on the heating lamp 5 inside the antifreeze box 1 to heat the pipe.

[0041] like Figures 1-5 As shown, it illustrates an antifreeze device for a heating network in another embodiment of this disclosure, which is largely the same as the above-described technical solution. Therefore, only the differences are described, including that the interior of the antifreeze box 1 is configured with an airflow guiding mechanism 4, which includes a guide plate 41. The guide plate 41 is fixedly connected to the top of the heating lamp 5. The above design is conducive to concentrating the hot air to circulate in one direction.

[0042] In some examples, a sealing plate 42 is fixedly connected to the side of the connecting plate 34, and the above design helps to restrict the space for hot air circulation.

[0043] The side section of the guide plate 41 is set to be semi-circular, and the heating lamp 5 is located inside the guide plate 41. The number of guide plates 41 is set to two, and they are symmetrical to each other along the vertical central axis of the bottom of the inner wall of the antifreeze box 1. The above design helps to prevent hot air from diffusing and concentrate it on the circumferential surface of the pipe.

[0044] The sealing plate 42 is slidably connected to the inner wall of the antifreeze box 1. The number of the sealing plates 42 is set to two, and they are symmetrical to each other along the vertical central axis of the side of the antifreeze box 1. The above design is beneficial to the movement of the sealing plate 42 when the connecting plate 34 moves, thereby compressing the space for hot air circulation.

[0045] For example, such as Figures 1-5 As shown, when the operator turns on the heating lamp 5, the generated hot air flows through the top guide plate 41 to the circumference of the pipe, preventing it from spreading over a large area. At the same time, when the connecting plate 34 moves, it drives the sealing plate 42 fixed on the side to slide along the inner wall of the antifreeze box 1 towards the pipe, thereby reducing the space for hot air to circulate.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. An antifreeze device for a heating pipe network, characterized in that, The container includes a freezer box (1), with an insulation board (2) hinged to the top of the freezer box (1), an inlet (6) on the side of the freezer box (1), a heating lamp (5) on the inner wall of the freezer box (1), and an adaptable clamping mechanism (3) inside the freezer box (1). The adaptable clamping mechanism (3) includes a motor (31), which is fixedly connected to the inner wall of the antifreeze box (1). A threaded rod (32) is fixedly connected to the end of the output shaft of the motor (31). A threaded sleeve (33) is threadedly connected to the circumferential surface of the threaded rod (32). A connecting plate (34) is fixedly connected to the front side of the threaded sleeve (33). A hollow plate (35) is fixedly connected to the top of the connecting plate (34). A return spring (36) is fixedly connected to the bottom of the inner wall of the hollow plate (35). A sealing block (37) is fixedly connected to the end of the return spring (36) away from the hollow plate (35). A limit rod (38) is fixedly connected to the bottom of the inner wall of the antifreeze box (1).

2. The antifreeze device for a heating pipe network according to claim 1, characterized in that, A connecting spring (39) is fixedly connected to the inner wall of the inlet (6), and a roller (310) is fixedly connected to the end of the connecting spring (39) away from the inner wall of the inlet (6).

3. The antifreeze device for a heating pipe network according to claim 2, characterized in that, The side section of the threaded sleeve (33) is set to a rectangle. The threaded sleeve (33) is slidably connected to the circumferential surface of the limiting rod (38). There are two threaded sleeves (33).

4. The antifreeze device for a heating pipe network according to claim 3, characterized in that, The number of reset springs (36) is set to several, and they are arranged in a linear array at the bottom of the inner wall of the hollow plate (35). The initial state of the reset springs (36) is set to a relaxed state.

5. The antifreeze device for a heating pipe network according to claim 4, characterized in that, The sealing block (37) is slidably connected to the inner wall of the hollow plate (35), the side section of the hollow plate (35) is set to concave, and the initial state of the connecting spring (39) is set to relaxed state.

6. The antifreeze device for a heating pipe network according to claim 5, characterized in that, The number of the adaptable clamping mechanism (3) is set to two, and they are symmetrical to each other along the vertical central axis at the bottom of the inner wall of the antifreeze box (1). The sealing block (37) is slidably connected to the inner wall of the antifreeze box (1).

7. The antifreeze device for a heating pipe network according to claim 6, characterized in that, The interior of the antifreeze box (1) is configured with an airflow guiding mechanism (4), which includes a guide plate (41) and is fixedly connected to the top of the heating lamp (5).

8. The antifreeze device for a heating pipe network according to claim 7, characterized in that, A sealing plate (42) is fixedly connected to the side of the connecting plate (34).

9. The antifreeze device for a heating pipe network according to claim 8, characterized in that, The side section of the guide plate (41) is set to be semi-circular, the heating lamp (5) is located inside the guide plate (41), and the number of guide plates (41) is set to two, and they are symmetrical to each other along the vertical central axis of the bottom of the inner wall of the antifreeze box (1).

10. The antifreeze device for a heating pipe network according to claim 9, characterized in that, The sealing plate (42) is slidably connected to the inner wall of the antifreeze box (1). The number of the sealing plates (42) is set to two, and they are symmetrical to each other along the vertical central axis of the side of the antifreeze box (1).

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