Anti-blocking device for low-temperature evaporator pipeline
By using an anti-clogging device that combines mechanical stirring and heating in the low-temperature evaporator pipes, the problem of deposit blockage in low-temperature environments is solved, achieving efficient anti-clogging and increased flow rate, ensuring the normal operation of the evaporator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-14
- Publication Date
- 2026-04-07
AI Technical Summary
Existing low-temperature evaporator pipes are prone to crystallization and precipitation due to the complex composition of materials in low-temperature environments, leading to deposit accumulation, increased fluid resistance or blockage, and affecting the normal operation of the evaporator.
The design combines mechanical stirring with temperature control. The stirring rod and plastic rod of the anti-clogging mechanism rotate at high speed inside the pipe, and the heating resistance wire on the inner wall of the heating shell heats the bend, preventing the liquid from solidifying and maintaining its fluidity.
It effectively prevents sediment blockage, increases liquid flow rate, ensures smooth liquid flow in pipes, prevents solidification at low temperatures, and improves the production efficiency of evaporators.
Smart Images

Figure CN224094660U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of low-temperature evaporator technology, specifically a low-temperature evaporator pipeline anti-clogging device. Background Technology
[0002] An evaporator is an apparatus that transforms a liquid substance into a gaseous state. Evaporators are widely used in industry, with those applied in refrigeration systems being one type. Low-temperature condensed liquid passes through the evaporator, exchanging heat with the outside air, vaporizing and absorbing heat to achieve a cooling effect. An evaporator mainly consists of two parts: a heating chamber and an evaporation chamber. The heating chamber provides the heat required for evaporation, causing the liquid to boil and vaporize, while the evaporation chamber completely separates the liquid and gas phases.
[0003] Chinese utility model patent CN219200196U discloses a pipe anti-clogging device for a low-temperature evaporator, including a bend. An auxiliary cleaning unit for cleaning the inner wall of the bend is provided on the bend. The auxiliary cleaning unit includes a sealed box fixedly connected to one side of the bend, and a through hole is provided on the bend. When cleaning of the inside of the bend is required, the auxiliary cleaning unit is activated, unfolding to flush and clean the inner wall of the bend. The flushing angle can be adjusted as needed to achieve comprehensive cleaning of the inner wall of the bend, making it highly practical. After use, the auxiliary cleaning unit automatically seals itself, separating it from the inside of the bend to prevent it from being affected during normal use, further improving its practicality.
[0004] Existing pipe anti-clogging devices are problematic because the materials processed by the evaporator have complex compositions, containing a large amount of solutes and impurities. In low-temperature environments, these substances easily crystallize and precipitate, adhering to the inner wall of the pipe. This is especially true at bends and pipe connections, where fluid flow is complex, easily leading to deposit accumulation. This results in a smaller pipe diameter, increased fluid resistance, and in severe cases, complete blockage of the pipe, affecting the normal operation of the evaporator and reducing production efficiency. Therefore, there is a problem with increasing the liquid flow rate at bends.
[0005] Therefore, this utility model provides a low-temperature evaporator pipe anti-clogging device to solve the above problems. Utility Model Content
[0006] To address the shortcomings of existing technologies, this invention provides a low-temperature evaporator pipe anti-clogging device, which solves the aforementioned problems.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a low-temperature evaporator pipe anti-clogging device, comprising a connecting pipe and a bend, wherein both ends of the bend are fixedly connected to an anti-clogging mechanism, and the other end of the anti-clogging mechanism is fixedly connected to a connecting pipe, and a heating mechanism is attached to the outer surface of the bend. The anti-clogging mechanism includes a sealing shell fixedly connected to both ends of the bend, and a rotating tube is rotatably connected to the inner wall of the sealing shell. Multiple sets of stirring rods are fixedly connected to the inner wall of the rotating tube, and a plastic rod is fixedly connected to the other end of the stirring rod. The heating mechanism includes a heating shell attached to the outer surface of the bend, and multiple sets of heating resistance wires are fixedly connected to the inner wall of the heating shell.
[0008] Furthermore, grooves are provided on the inner wall of the sealing shell and the outer surface of the rotating tube, and a sealing ring is provided on the outer surface of the groove.
[0009] By adopting the above technical solution, the sealing ring facilitates the sealing of the rotating tube, preventing liquid leakage and preventing the rotating tube from separating from the sealing shell.
[0010] Furthermore, a worm gear is fixedly connected to the outer surface of the rotating tube, and a worm is meshed with the outer surface of the worm gear.
[0011] By adopting the above technical solution, the worm gear rotates to drive the worm wheel to rotate, which in turn facilitates the high-speed rotation of the rotating tube and the plastic rod, thereby increasing the flow rate of the liquid flowing through the bend.
[0012] Furthermore, a mounting housing is fixedly connected to the outer surface of the sealed housing, and a motor is fixedly connected to the outer surface of the mounting housing. The output shaft of the motor is fixedly connected to the outer surface of the worm gear.
[0013] Using the above technical solution, the motor is started, and the output shaft of the motor drives the worm gear to rotate.
[0014] Furthermore, the outer surface of the motor is electrically connected to a control panel via wires. The control panel is fixedly connected to the outer surface of the mounting housing, and a sealing plug is slidably connected to the outer surface of the mounting housing. The inner wall of the mounting housing is filled with lubricating oil.
[0015] By adopting the above technical solution, the motor speed can be easily controlled through the control panel, and lubricating oil can be easily injected into the mounting housing through the sealing plug, thereby reducing wear between the worm and the worm wheel.
[0016] Furthermore, the outer surface of the heating shell is threaded with mounting bolts, and the inner wall of the heating shell is fixedly connected with a sealing gasket, the outer surface of which is in contact with the outer surface of the bent tube.
[0017] By adopting the above technical solution, the outer surface of the bend can be easily sealed by the sealing gasket, and the bend can be easily heated by multiple sets of heating resistance wires.
[0018] Beneficial effects
[0019] This invention provides a device for preventing blockage in the pipes of a low-temperature evaporator. Compared with the prior art, it has the following advantages:
[0020] 1. This anti-clogging device for low-temperature evaporator pipes achieves efficient anti-clogging through an innovative design that combines mechanical stirring with temperature control. The stirring rod and plastic rod of the anti-clogging mechanism rotate at high speed inside the pipe, which not only increases the liquid flow rate but also effectively disperses any sediment that may form.
[0021] 2. This device facilitates the prevention of blockage in low-temperature evaporator pipes. Multiple sets of heating resistance wires fixedly connected to the inner wall of the heating shell heat up when energized, heating the bend and maintaining it at a certain temperature. This prevents the liquid from solidifying and blocking the pipe in a low-temperature environment, ensuring that the liquid can flow smoothly within the pipe. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 This is a perspective view of the external structure of this utility model;
[0024] Figure 2 This is a front sectional view of the structure of this utility model;
[0025] Figure 3 This is a side sectional view of the structure of this utility model;
[0026] Figure 4 This is a top sectional view of the structure of this utility model.
[0027] In the diagram: 1. Connecting pipe; 2. Anti-blocking mechanism; 201. Motor; 202. Mounting housing; 203. Sealing plug; 204. Sealing housing; 205. Stirring rod; 206. Plastic rod; 207. Rotating pipe; 208. Worm gear; 209. Sealing ring; 210. Worm; 3. Bend; 4. Heating mechanism; 401. Mounting bolt; 402. Heating housing; 403. Heating resistance wire; 404. Sealing gasket; 5. Control panel. Detailed Implementation
[0028] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0029] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.
[0030] Reference Figures 1 to 4 This application provides a low-temperature evaporator pipe anti-clogging device, including a connecting pipe 1 and a bend 3. Both ends of the bend 3 are fixedly connected to an anti-clogging mechanism 2, and the other end of the anti-clogging mechanism 2 is fixedly connected to the connecting pipe 1. A heating mechanism 4 is attached to the outer surface of the bend 3. The anti-clogging mechanism 2 includes a sealing shell 204 fixedly connected to both ends of the bend 3. A rotating pipe 207 is rotatably connected to the inner wall of the sealing shell 204. Multiple sets of stirring rods 205 are fixedly connected to the inner wall of the rotating pipe 207. A plastic rod 206 is fixedly connected to the other end of the stirring rod 205.
[0031] Furthermore, grooves are provided on the inner wall of the sealing housing 204 and the outer surface of the rotating tube 207. A sealing ring 209 is provided on the outer surface of the groove. A worm gear 208 is fixedly connected to the outer surface of the rotating tube 207. A worm 210 is meshed with the outer surface of the worm gear 208. A mounting housing 202 is fixedly connected to the outer surface of the sealing housing 204. A motor 201 is fixedly connected to the outer surface of the mounting housing 202. The output shaft of the motor 201 is fixedly connected to the outer surface of the worm 210. A control panel 5 is electrically connected to the outer surface of the motor 201 through wires. The control panel 5 is fixedly connected to the outer surface of the mounting housing 202. A sealing plug 203 is slidably connected to the outer surface of the mounting housing 202. The inner wall of the mounting housing 202 is filled with lubricating oil.
[0032] In this embodiment, an innovative design combining mechanical stirring and temperature control achieves efficient anti-clogging. The stirring rod 205 and plastic rod 206 of the anti-clogging mechanism 2 rotate at high speed inside the pipe, which not only increases the liquid flow rate but also effectively disperses any sediments that may form.
[0033] Reference Figures 1 to 4In one aspect of this embodiment, the heating mechanism 4 includes a heating shell 402 that is attached to the outer surface of the bent tube 3, and a plurality of heating resistance wires 403 are fixedly connected to the inner wall of the heating shell 402.
[0034] Furthermore, the outer surface of the heating housing 402 is threaded with mounting bolts 401, and the inner wall of the heating housing 402 is fixedly connected with a sealing gasket 404, the outer surface of the sealing gasket 404 being in contact with the outer surface of the bent tube 3.
[0035] In this embodiment, multiple sets of heating resistance wires 403 fixedly connected to the inner wall of the heating shell 402 generate heat after being energized, heating the bend 3 and keeping the bend 3 at a certain temperature to prevent the liquid from solidifying and blocking the pipe in a low-temperature environment, and to ensure that the liquid can flow smoothly in the pipe.
[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0037] Working principle: When the motor 201 is started, its output shaft drives the worm gear 210 to rotate. Since the worm gear 210 is meshed with the worm wheel 208, its rotation drives the worm wheel 208 to rotate, which in turn drives the rotating tube 207, which is fixedly connected to the worm wheel 208, to rotate at high speed. The stirring rod 205 and the plastic rod 206 on the inner wall of the rotating tube 207 rotate together with the rotating tube 207. Through the stirring action of the stirring rod 205 and the plastic rod 206, the flow rate of the liquid flowing through the bend 3 is increased, preventing impurities in the liquid from depositing and clogging the pipe at the bend 3. At the same time, the sealing ring 209 set in the grooves on the inner wall of the sealing shell 204 and the outer surface of the rotating tube 207 not only seals the rotating tube 207 to prevent liquid from overflowing, but also prevents the rotating tube 207 from separating from the sealing shell 204, ensuring the stability of the anti-clogging mechanism 2. In addition, the rotation speed of the motor 201 can be controlled via the control panel 5, thereby adjusting the rotation speed of the rotating tube 207 to meet the liquid flow rate requirements under different working conditions. The sealing plug 203 facilitates the injection of lubricating oil into the mounting housing 202, reducing wear between the worm gear 210 and the worm wheel 208 and extending the service life of the anti-blocking mechanism 2. Regarding the heating mechanism 4, the heating housing 402, which is attached to the outer surface of the bend 3, is fixedly installed by the mounting bolts 401. The sealing gasket 404 on the inner wall of the heating housing 402 is attached to the outer surface of the bend 3, providing a sealing effect. Multiple sets of heating resistance wires 403, which are fixedly connected to the inner wall of the heating housing 402, heat up after being energized, heating the bend 3 and maintaining it at a certain temperature to prevent the liquid from solidifying and blocking the pipe in a low-temperature environment, ensuring that the liquid can flow smoothly in the pipe.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A low-temperature evaporator pipe anti-clogging device, comprising a connecting pipe (1) and a bend (3), characterized in that: Both ends of the bend (3) are fixedly connected to an anti-blocking mechanism (2), and the other end of the anti-blocking mechanism (2) is fixedly connected to a connecting pipe (1). A heating mechanism (4) is attached to the outer surface of the bend (3). The anti-blocking mechanism (2) includes a sealing shell (204) fixedly connected to both ends of the bend (3). A rotating tube (207) is rotatably connected to the inner wall of the sealing shell (204). Multiple sets of stirring rods (205) are fixedly connected to the inner wall of the rotating tube (207). A plastic rod (206) is fixedly connected to the other end of the stirring rod (205). The heating mechanism (4) includes a heating shell (402) that is attached to the outer surface of the bent tube (3), and multiple sets of heating resistance wires (403) are fixedly connected to the inner wall of the heating shell (402).
2. The low-temperature evaporator pipe anti-clogging device according to claim 1, characterized in that: The inner wall of the sealing shell (204) and the outer surface of the rotating tube (207) are both provided with grooves, and a sealing ring (209) is provided on the outer surface of the groove.
3. The low-temperature evaporator pipeline anti-clogging device according to claim 2, characterized in that: A worm gear (208) is fixedly connected to the outer surface of the rotating tube (207), and a worm (210) is meshed with the outer surface of the worm gear (208).
4. The low-temperature evaporator pipe anti-clogging device according to claim 3, characterized in that: The outer surface of the sealed housing (204) is fixedly connected to the mounting housing (202), and the outer surface of the mounting housing (202) is fixedly connected to the motor (201). The output shaft of the motor (201) is fixedly connected to the outer surface of the worm (210).
5. A low-temperature evaporator pipe anti-clogging device according to claim 4, characterized in that: The outer surface of the motor (201) is electrically connected to a control panel (5) via wires. The control panel (5) is fixedly connected to the outer surface of the mounting housing (202). A sealing plug (203) is slidably connected to the outer surface of the mounting housing (202). The inner wall of the mounting housing (202) is filled with lubricating oil.
6. The low-temperature evaporator pipe anti-clogging device according to claim 1, characterized in that: The outer surface of the heating shell (402) is threaded with mounting bolts (401), and the inner wall of the heating shell (402) is fixedly connected with a sealing gasket (404), the outer surface of the sealing gasket (404) being in contact with the outer surface of the bent pipe (3).
Citation Information
Patent Citations
Pipeline anti-blocking device for low-temperature evaporator
CN219200196U