Gravity type heat pipe capable of increasing contact surface of evaporation section

Abstract

The utility model provides a gravity type heat pipe capable of increasing the contact surface of an evaporation section, which comprises a gravity type heat pipe conical top, the evaporation section, a middle section and a condensation section, the gravity type heat pipe conical top is welded with the bottom of the evaporation section, the top of the evaporation section is welded with the bottom of the middle section, and the top of the middle section is welded with the bottom of the condensation section. The evaporation section is formed by pouring carbon steel and is of a corrugated structure, the middle section comprises a carbon steel pipe A, a valve is arranged on the carbon steel pipe A, the condensation section comprises a carbon steel pipe B, and cooling fins are arranged on the outer side of the carbon steel pipe B. According to the gravity type heat pipe, the carbon steel pipe and the fin-shaped pieces of the evaporation section are integrally formed in the manufacturing process, so that a working medium flows in the fin-shaped pipe, the heat absorption range is larger compared with a traditional evaporation section, and the working medium in the heat pipe has a larger contact area with a gangue hill so as to achieve a better heat dissipation effect.

Description

Technical Field

[0001] This invention belongs to the field of self-igniting coal gangue mountain management technology, specifically a gravity heat pipe that increases the contact surface of the evaporation section. Background Technology

[0002] Coal gangue is a low-carbon, high-ash industrial waste generated during coal mining and processing, containing various organic and inorganic compounds. Due to the presence of ignition sources such as pyrite in coal gangue, long-term exposure to air can easily lead to oxidation and spontaneous combustion, releasing harmful substances, including seven harmful gases such as dust, CO, SO2, H2S, and nitrogen oxides. It also releases heavy metals, polycyclic aromatic hydrocarbons, and various harmful substances such as sulfur, arsenic, mercury, and fluorine, causing harm to the ecological environment and affecting human life.

[0003] A heat pipe is a device that achieves efficient heat transfer through phase change. It consists of an evaporation section, a condensation section, an intermediate section, and an internal working medium. The evaporation section, made of a high-temperature resistant, thermally conductive material, absorbs heat from the interior of the coal gangue pile, causing the working medium to evaporate. This heat is then transferred to the condensation section along with the working medium gas. The condensation section, composed of exposed tubes and spiral fins, exchanges heat with the air, cooling and recirculating the internal working medium gas. The internal working medium acts as the heat transfer medium, transferring heat through phase change. However, currently, the evaporation section has a small contact area with the coal gangue, and the internal medium cannot flow within the finned tubes, making it difficult to meet heat dissipation requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a gravity-type heat pipe that increases the contact surface of the evaporation section.

[0005] The technical solution of this invention is implemented as follows:

[0006] A gravity heat pipe with increased evaporation section contact surface includes a gravity heat pipe, an evaporation section, an intermediate section, and a condensation section. The conical top of the gravity heat pipe is welded to the bottom of the evaporation section, the top of the evaporation section is welded to the bottom of the intermediate section, and the top of the intermediate section is welded to the bottom of the condensation section. The evaporation section is cast from carbon steel in a corrugated structure. The intermediate section includes a carbon steel pipe A with a valve. The condensation section includes a carbon steel pipe B with heat dissipation fins on its outer side.

[0007] Furthermore, the outer diameter of the corrugations in the evaporation section is 32 mm.

[0008] Furthermore, the intermediate section is made of carbon steel pipe with a rust-proof paint coating on the surface.

[0009] Furthermore, the outer diameter of the heat dissipation fins is 16mm, and the spacing between adjacent fins is 5mm.

[0010] Furthermore, the evaporation section is 4.5 meters long, the intermediate section is 1 meter long, and the condensation section is 2 meters long.

[0011] The beneficial effects of this invention are as follows:

[0012] The evaporation section of this invention is made of carbon steel in an integral corrugated structure. Compared with the traditional carbon steel tube with fins, the working medium flows in the finned tube, resulting in a larger heat absorption range than the traditional evaporation section. The working medium in the heat pipe has a larger contact area with the gangue pile to achieve better heat dissipation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the working state of this utility model.

[0015] In the diagram, 1-conical top of gravity heat pipe, 2-evaporation section; 3-middle section, 3.1-valve, 3.2 carbon steel pipe A, 4-condensation section, 4.1-heat dissipation fins, 4.2 carbon steel pipe B, 101-gravity heat pipe, 102-medium temperature section, 103-high temperature section, 104-heat flow direction of gangue pile. Detailed Implementation

[0016] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0017] like Figure 1 and Figure 2 As shown, it includes a gravity heat pipe conical top 1, an evaporation section 2, a middle section 3, and a condensation section 4. The gravity heat pipe conical top 1 is welded to the bottom of the evaporation section 2, the top of the evaporation section 2 is welded to the bottom of the middle section 3, and the top of the middle section 3 is welded to the bottom of the condensation section 4. The evaporation section 2 is cast from carbon steel in a corrugated structure. The middle section 3 includes a carbon steel pipe A3.2, on which a valve 3.1 is provided. The condensation section 4 includes a carbon steel pipe B4.2, on which heat dissipation fins 4.1 are provided on the outside.

[0018] The outer diameter of the corrugations in the evaporation section 2 is 32 mm.

[0019] The intermediate section 3 is made of carbon steel pipe with a rust-proof paint coating on the surface.

[0020] The outer diameter of the heat dissipation fins 4.1 is 16mm, and the interval between adjacent fins is 5mm.

[0021] The evaporation section 2 is 4.5 meters long, the intermediate section 3 is 1 meter long, and the condensation section 4 is 2 meters long.

[0022] When using this invention, before vacuuming, check the sealing of the gravity heat pipe 101. During vacuuming, open the valve connected to the vacuum system, close the valve of the liquid filling system, connect the vacuum pump through the suction pipe, start the vacuum pump to vacuum to a pressure of -0.1MPa, then close the vacuum system valve, open the valve connected to the liquid filling system, and fill with water. After completing the vacuum filling process, tighten and weld the valve 3.1 to ensure that the valve 3.1 is not damaged and causes pressure increase. When arranging the gravity heat pipe 101, when it is inserted into the coal gangue, the evaporation section 2 is located in the high-temperature section 103 of the gangue, and the intermediate section 3 is located in the medium-temperature section 102 of the gangue. The gravity heat pipe 101 absorbs heat through the evaporation section 2, causing water to evaporate into water vapor and move upward to the condensation section 4. It contacts the pipe wall, releases heat, and condenses into liquid water. Under the action of gravity, it flows back along the pipe wall to the evaporation section 2 to absorb heat and evaporate again. The water continuously circulates inside the gravity heat pipe 101, realizing the transfer of heat inside the coal gangue.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A gravity-type heat pipe with increased contact surface of the evaporation section, comprising a conical top of the gravity heat pipe, an evaporation section, a middle section, and a condensation section, characterized in that, The conical top of the gravity heat pipe is welded to the bottom of the evaporation section, the top of the evaporation section is welded to the bottom of the middle section, the top of the middle section is welded to the bottom of the condensation section, the evaporation section is cast from carbon steel in a corrugated structure, the middle section includes a carbon steel pipe A, a valve is provided on the carbon steel pipe A, the condensation section includes a carbon steel pipe B, and heat dissipation fins are provided on the outside of the carbon steel pipe B.

2. The gravity-type heat pipe according to claim 1, characterized in that, The outer diameter of the corrugations in the evaporation section is 32 mm.

3. The gravity-type heat pipe according to claim 1, characterized in that, The intermediate section is made of carbon steel pipe with a rust-proof paint coating on the surface.

4. A gravity-type heat pipe with increased contact surface of the evaporation section according to claim 1, characterized in that, The outer diameter of the heat dissipation fins is 16mm, and the interval between adjacent fins is 5mm.

5. A gravity-type heat pipe with increased contact surface of the evaporation section according to claim 1, characterized in that, The evaporation section is 4.5 meters long, the intermediate section is 1 meter long, and the condensation section is 2 meters long.

Images