A wear-resistant and vibration-resistant protection mechanism for the bottom of a vacuum heat pipe
By installing an internal flexible sleeve and an external protective sleeve at the bottom of the vacuum heat pipe, the problem of wear caused by oscillation of the vacuum heat pipe is solved, and the protective effect of anti-wear and anti-vibration is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 浙江菲达环保科技股份有限公司
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-03
AI Technical Summary
Existing vacuum heat pipes are prone to significant swaying under the scouring of flue gas, which can cause the bottom to rub against and wear through the positioning plate, resulting in heat pipe leakage.
An internal flexible sleeve and an external protective sleeve are installed between the vacuum heat pipe and the positioning orifice plate to increase the contact surface and utilize the elasticity of the external protective sleeve to eliminate the oscillation force.
It reduces wear on vacuum heat pipes, prevents leaks, and improves the stability and lifespan of the equipment.
Smart Images

Figure CN224455518U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of vacuum heat pipes, and in particular to the technical field of anti-wear and anti-vibration protection mechanisms for the bottom of vacuum heat pipes. Background Technology
[0002] The existing vacuum heat pipe is fixed at the top and limited in the middle and bottom by positioning plates. The positioning plates are generally made of steel plates with holes with a thickness of 6mm. The length of the vacuum heat pipe usually exceeds 6m. Under the continuous flushing action of flue gas, its bottom is prone to large-amplitude swing, which will cause friction with the bottom positioning plate. Since the thickness of the vacuum heat pipe itself is generally no more than 4mm, after long-term operation, the friction part is easily worn through, eventually leading to heat pipe leakage. Summary of the Invention
[0003] The purpose of this invention is to solve the problems in the prior art by proposing a wear-resistant and vibration-resistant protection mechanism for the bottom of a vacuum heat pipe, which can solve the above problems.
[0004] To achieve the above objectives, this utility model proposes a wear-resistant and vibration-resistant protection mechanism for the bottom of a vacuum heat pipe, comprising a vacuum heat pipe, an outer protective sleeve, a positioning plate, and an inner sleeve. The positioning plate has a positioning hole, and the outer protective sleeve is fixed on the positioning hole. The outer protective sleeve passes through the positioning hole, and the inner sleeve is provided on the inner side of the outer protective sleeve. The bottom of the vacuum heat pipe is disposed in the inner sleeve.
[0005] Preferably, a gap is provided between the outer wall of the vacuum heat pipe and the inner wall of the inner sleeve, and a gap is provided between the outer wall of the inner sleeve and the inner wall of the outer protective sleeve.
[0006] Preferably, the outer protective sleeve is welded to the positioning hole plate.
[0007] Preferably, the two ends of the outer protective sleeve protrude from the upper and lower surfaces of the positioning hole plate.
[0008] Preferably, the bottom end of the inner sleeve protrudes beyond the bottom end of the outer protective sleeve and is fixed to the bottom surface.
[0009] Preferably, the outer protective sleeve is a rigid metal tube, and the inner sleeve is a flexible plastic tube with a certain degree of elasticity.
[0010] Preferably, the outer protective sleeve is made of ND steel, and the inner sleeve is made of fluoroplastic material with a certain degree of elasticity.
[0011] Preferably, the inner sleeve has a thickness of 3mm and a length of not less than 150mm.
[0012] Preferably, the length of the outer sleeve is not less than 30 mm.
[0013] The beneficial effects of this utility model are as follows: By installing an inner sleeve and an outer protective sleeve between the vacuum heat pipe and the positioning plate, this utility model increases the contact surface between the vacuum heat pipe and the sleeve during the oscillation process, thereby reducing wear; at the same time, the outer protective sleeve has a certain degree of elasticity, which helps to eliminate the force of the oscillation, thereby achieving the purpose of protecting the vacuum heat pipe.
[0014] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] In the diagram: 1. Vacuum heat pipe; 2. Outer protective sleeve; 3. Positioning plate; 4. Inner sleeve. Detailed Implementation
[0017] See Figure 1 A wear-resistant and vibration-resistant protection mechanism for the bottom of a vacuum heat pipe includes a vacuum heat pipe 1, an outer protective sleeve 2, a positioning plate 3, and an inner sleeve 4. The positioning plate 3 has a positioning hole, and the outer protective sleeve 2 is fixed in the positioning hole. The outer protective sleeve 2 passes through the positioning hole, and the inner sleeve 4 is provided inside the outer protective sleeve 2. The bottom of the vacuum heat pipe 1 is disposed in the inner sleeve 4.
[0018] A 1mm gap is provided between the outer wall of the vacuum heat pipe 1 and the inner wall of the inner sleeve 4, and a 1mm gap is provided between the outer wall of the inner sleeve and the inner wall of the outer protective sleeve 2.
[0019] The outer protective sleeve 2 is welded onto the positioning hole plate 3.
[0020] The outer protective sleeve 2 has protrusions at both ends on the upper and lower surfaces of the positioning hole plate 3.
[0021] The bottom end of the inner sleeve 4 protrudes from the bottom end of the outer protective sleeve 2 and is fixed to the bottom surface.
[0022] The outer protective sleeve 2 is an ND steel pipe with a wall thickness of 3mm and a length of 30mm. The inner sleeve 4 is a flexible fluoroplastic pipe with a certain degree of elasticity and a length of 150mm.
[0023] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.
Claims
1. A kind of anti-abrasion anti-vibration protection mechanism for vacuum heat pipe bottom, it is characterized by: It includes a vacuum heat pipe (1), an outer protective sleeve (2), a positioning plate (3) and an inner sleeve (4). The positioning plate (3) has a positioning hole, and the outer protective sleeve (2) is fixed on the positioning hole. The outer protective sleeve (2) passes through the positioning hole. The inner sleeve (4) is provided on the inner side of the outer protective sleeve (2). The bottom of the vacuum heat pipe (1) is located in the inner sleeve (4).
2. The anti-abrasion and anti-vibration protection mechanism for the bottom of a vacuum heat pipe according to claim 1, characterized in that: A gap is provided between the outer wall of the vacuum heat pipe (1) and the inner wall of the inner sleeve (4), and a gap is provided between the outer wall of the inner sleeve and the inner wall of the outer protective sleeve (2).
3. The anti-abrasion and anti-vibration protection mechanism for the bottom of a vacuum heat pipe according to claim 1, characterized in that: The outer protective sleeve (2) is welded onto the positioning hole plate (3).
4. The anti-abrasion and anti-vibration protection mechanism for the bottom of a vacuum heat pipe according to claim 1, characterized in that: The outer protective sleeve (2) has protrusions at both ends on the upper and lower surfaces of the positioning hole plate (3).
5. The anti-abrasion and anti-vibration protection mechanism for the bottom of a vacuum heat pipe according to claim 1, characterized in that: The bottom end of the inner sleeve (4) protrudes from the bottom end of the outer protective sleeve (2) and is fixed to the bottom surface.
6. The anti-wear and anti-vibration protection mechanism for the bottom of a vacuum heat pipe as described in claim 1, characterized in that: The outer protective sleeve (2) is a rigid metal tube, and the inner sleeve (4) is a flexible plastic tube with a certain elasticity.