A pipe temperature regulating device

Abstract

The utility model discloses a pipeline temperature regulating device belongs to pipeline heating equipment technical field, and this device aims at solving the problem that the existing pipeline electric heater is easy to burn damage when stopping water supply, and it is easy to burn damage, including: pipeline electric heater, inlet pipe and set between the flow resistance component of both, and the flow resistance component includes support, fixed column, sliding column, limit block, spring and flow resistance block. The support is fixed in the inlet pipe, and the fixed column is supported by the support, and the sliding column is slidably arranged in the fixed column, and the limit block is fixed on the sliding column, and the spring is accommodated in the fixed column and abuts against the limit block, and the flow resistance block is connected to one end of the sliding column away from the limit block. The utility model discloses through pure mechanical structure realizes automatic lock water, and reliably prevents dry burning, and improves equipment safety, and the pull -type of its filter component simplifies maintenance operation.

Description

Technical Field

[0001] This utility model relates to the field of pipeline heating equipment technology, and in particular to a pipeline temperature regulation device. Background Technology

[0002] Pipeline temperature control devices are common equipment in industrial and civil fluid transport systems. Their main function is to heat the fluid medium inside the pipeline to meet specific process or operating temperature requirements. Among them, pipeline electric heaters using electric heating methods are widely used due to their high heating efficiency, precise temperature control, and compact structure.

[0003] However, in actual operation, the water flow in the pipeline is not always continuous. When the upstream water pump stops working or the pipeline valve is closed, the water flow into the pipeline electric heater will be interrupted. In this case, the water already present in the heater cavity may flow back out from the inlet due to gravity or the siphon effect generated in the pipeline.

[0004] The backflow of stored water exposes the electric heating element inside the heater directly to the air. If the heating control system fails to cut off the power in time, the heating element will be in a dry-burning state without water cooling. Dry burning causes the temperature of the heating element to rise rapidly in a very short time. This will not only directly burn out the heating element and significantly shorten the overall service life of the device, but in more serious cases, it may also cause fires and other safety accidents, posing a serious safety hazard.

[0005] Therefore, this utility model proposes a pipeline temperature regulation device to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a pipeline temperature regulating device, which aims to improve the problem in the prior art where the heating element is damaged by dry burning and poses a safety hazard due to the backflow of internal water when the water supply is stopped.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: The present invention provides a pipeline temperature regulating device, comprising: a pipeline electric heater, a water inlet pipe, and a flow-blocking component disposed between the water inlet pipe and the pipeline electric heater, wherein the flow-blocking component comprises a bracket, a fixed column, a sliding column, a limiting block, a spring, and a flow-blocking block; The bracket is fixed inside the water inlet pipe, the fixed column is supported and fixed by the bracket, the sliding column is slidably disposed inside the fixed column, the limiting block is fixedly connected to the sliding column and can slide synchronously on the inner wall of the fixed column, and the spring is housed in the fixed column, with one end abutting against the limiting block to apply a restoring elastic force to the sliding column; the flow blocking block is connected to the end of the sliding column away from the limiting block. Through this linkage structure, under the elastic force of the spring, the flow blocking block can automatically block the outlet of the water inlet pipe. Preferably, the flow-blocking assembly further includes a flow-blocking frame, which is disposed at the outlet of the water inlet pipe. When the flow-blocking block blocks the outlet of the water inlet pipe, the flow-blocking frame provides a stable and reliable contact surface for it. Preferably, the flow-blocking block engages with the flow-blocking frame under the elastic force of the spring. This engagement structure can further enhance the stability of the blockage and prevent accidental opening when there is slight negative pressure or vibration in the pipeline. Preferably, it also includes a filter assembly detachably mounted on the water inlet pipe, the filter assembly being positioned before the flow-blocking assembly in the water flow direction to intercept impurities in the water flow, thereby protecting the subsequent flow-blocking assembly and pipe electric heater from damage; Preferably, the water inlet pipe has a sliding groove on its wall, and the filter assembly includes a filter screen and a slider fixedly connected to the filter screen. The slider and the sliding groove form a sliding fit guide structure. Preferably, the filter assembly further includes a handle connected to the outside of the filter screen. The user can drive the slider to slide along the sliding groove by directly pulling or pushing the handle, thereby realizing the quick installation or removal of the entire filter assembly, which is extremely convenient to operate. Preferably, it also includes a controller, which is electrically connected to the pipe electric heater and is used by the user to set and control the heating temperature of the pipe electric heater to achieve precise temperature regulation. Preferably, the support has a radial spoke structure, which provides stable support for the fixed column while minimizing obstruction to water flow and ensuring smooth flow.

[0008] This utility model has the following beneficial effects: 1. This utility model, by setting up a flow-blocking component composed of a bracket, a fixed column, a sliding column, a limiting block, a spring, and a flow-blocking block in precise coordination, automatically opens or closes the water inlet channel by utilizing the interaction between water flow pressure and spring force. This solves the problem of existing pipeline electric heaters causing the heating element to burn out due to internal water backflow when water supply stops, thus leading to equipment damage and safety hazards. It achieves automatic water locking, reliable prevention of dry burning, and improved overall safety and service life of the device by using a purely mechanical structure.

[0009] 2. This utility model solves the problems of complex structure, difficult disassembly and assembly, and time-consuming and labor-intensive disassembly and assembly when cleaning or replacing the filter screen by opening a sliding groove on the wall of the water inlet pipe and designing a filter assembly with a slider and handle that slides in cooperation with it. It achieves quick pull-out disassembly and assembly of the filter assembly, greatly simplifies the maintenance steps and reduces the maintenance difficulty.

[0010] 3. This utility model solves the problem that existing solutions require the separate assembly of multiple independent components, resulting in a loose system structure, large space occupation, and complex installation. It integrates the pipeline electric heater, the anti-backflow flow-blocking component, and the quick-disassembly filter component into one unit, thus achieving a compact device structure, complete functions, convenient installation, and high overall reliability. Attached Figure Description

[0011] Figure 1 This is a perspective view of a pipeline temperature regulating device proposed in this utility model; Figure 2 This is a schematic diagram of the water inlet pipe of a pipe temperature regulating device proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the filter screen of a pipeline temperature regulating device proposed in this utility model.

[0012] Legend: 1. Pipe electric heater; 2. Flow obstruction assembly; 201. Flow obstruction frame; 202. Support; 203. Fixed column; 204. Sliding column; 205. Limiting block; 206. Spring; 207. Flow obstruction block; 3. Filter assembly; 301. Sliding groove; 302. Filter screen; 303. Slider; 304. Handle; 4. Controller; 5. Water inlet pipe. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Reference Figures 1-4 The present invention provides an embodiment of a pipe temperature regulating device, including a pipe electric heater 1, a water inlet pipe 5, and a flow-blocking component 2 disposed between the water inlet pipe 5 and the pipe electric heater 1. The water inlet pipe 5 is used to supply water to the pipe electric heater 1, and the core function of the flow-blocking component 2 is to automatically open or close the channel according to the water pressure, thereby effectively preventing the water in the pipe electric heater 1 from flowing back when the water supply stops. The flow-blocking assembly 2 includes a bracket 202, a fixed column 203, a sliding column 204, a limiting block 205, a spring 206, and a flow-blocking block 207. The bracket 202 is fixed inside the water inlet pipe 5 and has a radial spoke structure, which ensures the stable installation of subsequent components and provides sufficient flow space for water. The fixed column 203 is supported and fixed by the bracket 202, so that it can be stably located at the center of the water inlet pipe 5. The sliding column 204 is slidably disposed inside the fixed column 203 and can reciprocate along the axial direction of the fixed column 203. The limiting block 205 is fixedly connected to the sliding column 204, and its outer wall is flush with the fixed column 204. The inner wall of the fixed column 203 forms a sliding fit, and the spring 206 is housed in the fixed column 203. One end of the spring 206 abuts against the limiting block 205, thereby providing the limiting block 205 with a continuous axial reset elastic force. The flow blocking block 207 is connected to the end of the sliding column 204 away from the limiting block 205. When there is no water pressure, the spring 206 can push the flow blocking block 207 to tightly block the outlet of the water inlet pipe 5 through the elastic force transmitted by the limiting block 205 and the sliding column 204, so as to prevent the water from flowing back. When there is water flow, the water pressure can overcome the elastic force of the spring 206 and push the flow blocking block 207 to open the channel, so as to realize the unidirectional flow of water. To more reliably achieve the blocking function of the flow-blocking block 207, the flow-blocking assembly 2 in this embodiment also includes a flow-blocking frame 201, and the flow-blocking frame 201 and the aforementioned flow-blocking block 207 form a specific abutting and engaging relationship. The flow-blocking frame 201 is installed at the outlet of the water inlet pipe 5. Its function is to provide a stable and structurally matched contact surface for the flow-blocking block 207 when the flow-blocking block 207 blocks the outlet of the water inlet pipe 5. The side of the flow-blocking frame 201 facing the flow-blocking block 207 has a sealing surface that matches the shape of the end face of the flow-blocking block 207 to ensure a good sealing effect when contacting. When the external water flow stops during operation, the flow-blocking block 207 moves to a position in contact with the flow-blocking frame 201 under the elastic force of the spring 206. The flow-blocking block 207 and the flow-blocking frame 201 are engaged, which means that the inner edge of the flow-blocking frame 201 has a groove, while the outer edge of the end of the flow-blocking block 207 has a corresponding protrusion. When the flow-blocking block 207 is reset, the protrusion at its end will be embedded into the groove of the flow-blocking frame 201, forming a slight self-locking effect. This ensures that even if there is slight negative pressure or vibration in the pipeline, the flow-blocking block 207 can be stably kept in the closed position, thereby improving the reliability of the anti-backflow function. The fluid pressure that drives the flow-blocking block 207 to move comes from the external water supply system. Its specific pressure value is related to the pipeline design and is a common application condition in this field, so it will not be elaborated here. It also includes a filter assembly 3, which is detachably installed on the water inlet pipe 5. Its installation position in the water flow direction is before the flow-blocking assembly 2, ensuring that the water flows through the filter before entering the flow-blocking assembly 2 and the pipe electric heater 1. The water inlet pipe 5 has multiple sliding grooves 301 on its wall. Correspondingly, the filter assembly 3 itself includes a filter screen 302 and a slider 303. The slider 303 is fixedly connected to the filter screen 302, and its shape and size are adapted to the sliding grooves 301, allowing for sliding contact. This slider and groove structure allows the entire filter assembly 3 to be easily pulled out. The filter assembly 3 also includes a handle 304, which is connected to the outside of the filter screen 302. When it is necessary to disassemble or install the filter assembly 3, the user can directly hold and pull or push the handle 304, thereby driving the slider 303 to slide smoothly along the sliding groove 301, which simplifies the operation steps when cleaning or replacing the filter screen 302. The filter assembly 3 also includes a controller 4, which is electrically connected to the pipe electric heater 1. The controller 4 can be equipped with interactive elements such as a display screen and temperature setting buttons on its panel, which can be used to conveniently set and control the heating temperature of the pipe electric heater 1 to meet the usage needs in different scenarios.

[0015] Working principle: When it is necessary to heat the water in the pipe, the external water supply system starts to supply water to the device through the inlet pipe 5. The water first flows through the filter component 3 set on the inlet pipe 5. Impurities in the water are intercepted by the filter screen 302. The clean water continues to move forward. Then, this pressurized water flow impacts the flow blocking block 207 of the flow blocking component 2. When the thrust generated by the water pressure is large enough, it will overcome the preload of the spring 206. At this time, the flow blocking block 207 will drive the sliding column 204 and the limiting block 205 fixed on the sliding column 204 to slide together on the inner wall of the fixed column 203. This process will compress the spring 206. As the sliding column 204 moves, the flow blocking block 207 disengages from the flow blocking frame 201, opening the channel to enter the pipe electric heater 1. The water can then smoothly enter the heater. At this time, the user can set the temperature through the controller 4, and the pipe electric heater 1 will start to heat the water inside. When the external water supply to the inlet pipe 5 stops, the water pressure acting on the flow-blocking block 207 disappears instantly. The previously compressed spring 206 immediately rebounds, and the released elastic force pushes the limit block 205 to reset. The limit block 205 then drives the sliding column 204 to reset, causing the flow-blocking block 207 at the front end of the sliding column 204 to quickly retract and lock tightly together with the flow-blocking frame 201 again, thereby completely blocking the channel into the pipe electric heater 1. Through this purely mechanical automatic reset and sealing, it is ensured that there is always water inside the pipe electric heater 1, effectively avoiding dry burning due to lack of water and ensuring the safe operation of the equipment. When the filter screen 302 needs to be cleaned or replaced, simply pull the handle 304 on the outside of the filter assembly 3. The handle 304 will move the entire filter assembly 3 outward, and the slider 303 on it will slide smoothly out along the sliding groove 301 on the wall of the water inlet pipe 5, thus completing the disassembly. When installing, the operation is reversed. Simply align the slider 303 with the sliding groove 301 and push it in. The whole process does not require complicated tools and is very convenient.

Claims

1. A pipeline temperature regulating device, comprising: The pipeline electric heater (1), the water inlet pipe (5) and the flow obstruction component (2) are provided. The water inlet pipe (5) is used to supply water to the pipeline electric heater (1). The flow obstruction component (2) is disposed between the water inlet pipe (5) and the pipeline electric heater (1). The device is characterized by comprising: a bracket (202), a fixed column (203), a sliding column (204), a limiting block (205), a spring (206), and a flow-blocking block (207). The bracket (202) is fixed inside the water inlet pipe (5). The fixed column (203) is supported and fixed by the bracket (202). The sliding column (204) is slidably disposed inside the fixed column (203). The limiting block (205) is fixedly connected to the sliding column (204) and slides. The spring (206) is housed within the fixed column (203) and one end of the spring abuts against the limiting block (205). The flow blocking block (207) is connected to the end of the sliding column (204) away from the limiting block (205). Under the elastic force transmitted by the spring (206) through the limiting block (205) and the sliding column (204), the flow blocking block (207) blocks the outlet of the water inlet pipe (5) to prevent water backflow.

2. The pipeline temperature regulating device according to claim 1, characterized in that: The flow-blocking assembly (2) also includes a flow-blocking frame (201), which is disposed at the outlet of the water inlet pipe (5) and is used to abut against the flow-blocking block (207) when it blocks the outlet of the water inlet pipe (5).

3. The pipeline temperature regulating device according to claim 2, characterized in that: The flow-blocking block (207) engages with the flow-blocking frame (201) under the elastic force of the spring (206).

4. The pipeline temperature regulating device according to claim 1, characterized in that: It also includes a filter assembly (3), which is detachably installed on the water inlet pipe (5) and is positioned in the direction of water flow ahead of the flow-blocking assembly (2).

5. The pipeline temperature regulating device according to claim 4, characterized in that: The water inlet pipe (5) has a sliding groove (301) on its wall. The filter assembly (3) includes a filter screen (302) and a slider (303). The slider (303) is fixedly connected to the filter screen (302) and slides in cooperation with the sliding groove (301).

6. The pipeline temperature regulating device according to claim 5, characterized in that: The filter assembly (3) also includes a handle (304), which is connected to the outside of the filter screen (302) and is used to drive the slider (303) to slide along the sliding groove (301) to realize the installation or removal of the filter assembly (3).

7. The pipeline temperature regulating device according to claim 1, characterized in that: It further includes a controller (4) which is electrically connected to the pipe electric heater (1) and is used to set and control the heating temperature of the pipe electric heater (1).

8. The pipeline temperature regulating device according to claim 1, characterized in that, The support (202) has a radial spoke structure to provide a flow channel for water while fixing the fixing column (203).

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