Open type heat exchanger for grease production

Abstract

The utility model discloses an open-type heat exchanger for grease production, and relates to the technical field of ventilators. The device comprises a tank body and a tube nest assembly, the tube nest assembly is installed in the tank body and comprises a set of sleeves and a set of telescopic tubes, two telescopic tubes are connected in each sleeve in a sliding and sleeved mode, and the ends, away from the sleeves, of the two telescopic tubes in each sleeve are communicated with the adjacent telescopic tubes through bent tubes. Wherein one ends of the two telescopic pipes penetrate through the tank body, the lower end of the tank body is closed, the upper end of the tank body is open, the lower end of the tank body is communicated with a discharging pipe, a floating cover is slidably sleeved above the tube nest assembly in the tank body, and the floating cover is communicated with a feeding pipe. The telescopic pipe deforms and moves in the casing pipe due to thermal expansion and cold contraction of the tube nest assembly, so that deformation caused by thermal expansion and cold contraction is counteracted, and the pipeline is prevented from being broken; the floating cover is pushed to move upwards, during heat exchange, the temperature in the tank body rises to increase air pressure, and breakage caused by too large air pressure in the tank body is prevented.

Description

Technical Field

[0001] This utility model belongs to the field of air exchanger technology, and in particular relates to an open heat exchanger for oil production. Background Technology

[0002] In the production of oil and grease products, heat exchangers are needed to heat the oil to preheat it and reduce its viscosity, facilitating its transport in pipelines. However, due to the high heat transfer coefficient of oil and grease, the heat exchanger tubes can deform due to drastic thermal expansion and contraction during heat exchange, potentially leading to tube rupture over time. Furthermore, when high-temperature materials are applied to the sealed outer shell of the heat exchanger, the internal structure expands due to heat, which can also cause the shell to crack over extended periods.

[0003] To address these issues, we provide an open-type heat exchanger for oil and fat production. Utility Model Content

[0004] The purpose of this invention is to provide an open heat exchanger for oil production. Two telescopic tubes are slidably connected within a sleeve in a tube assembly, and these tubes are connected by bends. During heat exchange, the tube assembly undergoes thermal expansion and contraction, causing the telescopic tubes to deform and move within the sleeve, thus counteracting the deformation caused by thermal expansion and contraction and preventing pipe rupture. A floating cover is slidably connected above the tank, with a feed pipe connected to it. During heat exchange, the temperature inside the tank rises, increasing the gas pressure and pushing the floating cover upwards, preventing excessive gas pressure inside the tank from causing rupture.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is an open heat exchanger for oil production, including a tank and a tube assembly. The tube assembly is installed in the tank and includes a set of sleeves and a set of telescopic tubes. Two telescopic tubes are slidably sleeved in each sleeve. The ends of the two telescopic tubes in each sleeve that are away from the sleeve are connected to the adjacent telescopic tube through a bend. One end of the two telescopic tubes penetrates the tank. The lower end of the tank is closed and the upper opening is closed. A discharge pipe is connected to the lower end of the tank. A floating cover is slidably sleeved in the tank above the tube assembly, and a feed pipe is connected to the floating cover.

[0007] The present invention is further configured such that the sleeve includes an internally threaded tube and an externally threaded tube, one end of the internally threaded tube is fixedly provided with an internally threaded sleeve, one end of the externally threaded tube is provided with an external thread, and the external thread at one end of the externally threaded tube is helically sleeved in the threaded sleeve at one end of the internally threaded tube.

[0008] The present invention is further configured such that inner retaining flanges are fixedly provided on the inner walls of both ends of the sleeve, and an outer retaining flange is fixedly provided on the outer side of one end of the telescopic tube that is slidably sleeved inside the sleeve.

[0009] The present invention is further configured such that a circumferential sealing ring groove is provided on the outer wall of the outer edge, and a rubber sealing ring is sleeved inside the sealing ring groove.

[0010] The present invention is further configured such that compression springs are respectively sleeved on the outer sides of the two telescopic tubes inside the sleeve, and the compression springs are sleeved between the outer edge and the inner edge.

[0011] The present invention is further configured such that the tube assembly includes two tube ring clamps, and a set of sleeve through holes are circumferentially arrayed on the plate surface near the edge of the tube ring clamps. The upper and lower ends of the sleeve group are respectively sleeved in the sleeve through holes of the two tube ring clamps, and a liquid passage hole is opened at the center of the plate surface of the tube ring clamps.

[0012] The present invention is further configured such that a pressure ring is sleeved at the upper opening of the tank body, and a set of guide posts are fixedly arranged in a circumferential array on the plate surface near the inner ring edge of the lower end of the pressure ring. A set of guide post holes are opened in a circumferential array on the plate surface near the edge of the floating cover, and the guide post holes are slidably sleeved in each guide post.

[0013] The present invention is further configured such that the same bottom support ring is fixedly installed at the lower end of the guide column assembly, and the outer wall of the bottom support ring is attached to the inner wall of the tank.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model involves sliding two telescopic tubes inside a sleeve in a tube assembly and connecting each telescopic tube with a bend. When heat exchange occurs, the tube assembly is subjected to thermal expansion and contraction, which causes the telescopic tubes to deform and move inside the sleeve, thereby offsetting the deformation caused by thermal expansion and contraction and preventing the pipe from breaking.

[0016] 2. This utility model uses a floating cover that slides on top of the tank and connects to a feed pipe. During heat exchange, the temperature inside the tank rises, increasing the air pressure and pushing the floating cover upward, thus preventing the tank from rupturing due to excessive air pressure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of an open heat exchanger used in oil production.

[0019] Figure 2 This is an exploded view of the casing.

[0020] Figure 3 This is an exploded view of the sleeve and the telescopic tube.

[0021] Figure 4 This is an exploded view of the tube assembly.

[0022] Figure 5 This is an exploded view of the present invention.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1-Tank body, 101-Discharge pipe, 102-Floating cover, 102a-Guide post hole, 103-Infeed pipe, 104-Top pressure ring, 104a-Guide post, 104a-1-Bottom support ring clamp, 2-Tube assembly, 201-Sleeve, 201a-Internal threaded pipe, 201b-External threaded pipe, 201c-Internal clamping edge, 202-Telescopic pipe, 202a-Bend, 202b-External clamping edge, 202b-1-Sealing ring groove, 202b-2-Rubber sealing ring, 202c-Compression spring, 203-Tube ring clamp plate, 203a-Sleeve through hole, 203b-Liquid passage hole. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Example 1

[0027] Please see Figures 1 to 4 This utility model is an open heat exchanger for oil production, including a tank body 1 and a tube assembly 2. The tube assembly 2 includes a set of sleeves 201 and a set of telescopic tubes 202. By sliding two telescopic tubes 202 inside the sleeves 201 in the tube assembly 2 and connecting each telescopic tube 202 through a bend 202a, when heat exchange is performed, the tube assembly 2 is subjected to thermal expansion and contraction, which causes the telescopic tubes 202 to deform and move inside the sleeves 201, thereby offsetting the deformation caused by thermal expansion and contraction and preventing pipe rupture. By sliding a floating cover 102 above the tank body 1 and connecting a feed pipe 103 to the floating cover 102, when heat exchange is performed, the temperature inside the tank body 1 rises, causing the air pressure to increase, pushing the floating cover 102 upward, preventing the air pressure inside the tank body 1 from becoming too high and causing rupture.

[0028] Specifically, the tube assembly 2 is installed inside the tank body 1. Two telescopic tubes 202 are slidably sleeved inside each sleeve 201. The ends of the two telescopic tubes 202 in each sleeve 201 that are away from the sleeve 201 are connected to the adjacent telescopic tube 202 through a bend 202a. One end of the two telescopic tubes 202 penetrates through the tank body 1. The lower end of the tank body 1 is closed and the upper end is open. The lower end of the tank body 1 is connected to a discharge pipe 101. A floating cover 102 is slidably sleeved above the tube assembly 2 inside the tank body 1. A feed pipe 103 is connected to the floating cover 102.

[0029] Furthermore, the sleeve 201 includes an internally threaded tube 201a and an externally threaded tube 201b. One end of the internally threaded tube 201a is fixed with an internally threaded sleeve, and one end of the externally threaded tube 201b is provided with an external thread. The external thread at one end of the externally threaded tube 201b is screwed into the threaded sleeve at one end of the internally threaded tube 201a. After the two telescopic tubes 202 are sleeved in the internally threaded tube 201a and the externally threaded tube 201b, the internally threaded tube 201a and the externally threaded tube 201b are threaded together.

[0030] Furthermore, inner retaining edges 201c are fixed to the inner walls of both ends of the sleeve 201, and outer retaining edges 202b are fixed to the outer side of the end of the telescopic tube 202 that is slidably sleeved inside the sleeve 201 to prevent the telescopic tube 202 from falling out of the sleeve 201.

[0031] Furthermore, a circumferential sealing ring groove 202b-1 is provided on the outer wall of the outer edge 202b, and a rubber sealing ring 202b-2 is fitted inside the sealing ring groove 202b-1 to improve the sealing of the telescopic tube 202 inside the sleeve 201.

[0032] Furthermore, compression springs 202c are respectively sleeved on the outer sides of the two telescopic tubes 202 inside the sleeve 201. The compression springs 202c are sleeved between the outer clamping edge 202b and the inner clamping edge 201c, and are used to reset the telescopic tubes 202.

[0033] Furthermore, the tube assembly 2 also includes two tube ring clamps 203. A set of sleeve through holes 203a is circumferentially arrayed on the plate surface near the edge of the tube ring clamp 203. The upper and lower ends of the sleeve 201 set are respectively sleeved in the sleeve through holes 203a of the two tube ring clamps 203. A liquid passage hole 203b is opened in the center of the plate surface of the tube ring clamp 203 for fixing each sleeve 201 in the tube assembly 2.

[0034] The operation process in this embodiment is as follows:

[0035] During heat exchange, oil enters tank 1 through feed pipe 103, and the material undergoing heat exchange enters tube assembly 2 to exchange heat with the oil in tank 1. When tube assembly 2 deforms due to thermal expansion and contraction, telescopic pipe 202 expands and contracts within sleeve 201 to absorb the deformation caused by thermal expansion and contraction. When high-temperature material enters tank 1, the air pressure inside tank 1 increases due to the high temperature, which pushes floating cover 102 upward to balance the air pressure inside tank 1 and prevent tank 1 from rupturing.

[0036] Example 2

[0037] Please see Figures 1 to 5 Based on embodiment 1, it also includes a pressure ring 104. By fixing a set of guide posts 104a at the lower end of the pressure ring 104, a set of guide post holes 102a on the surface of the floating cover 102 is slidably sleeved on the outside of the guide posts 104a, so that the floating cover 102 floats up and down stably.

[0038] Specifically, a pressure ring 104 is fitted at the upper opening of the tank body 1. A set of guide posts 104a is fixedly arranged in a circumferential array on the plate surface near the inner ring edge of the lower end of the pressure ring 104. A set of guide post holes 102a are opened in a circumferential array on the plate surface near the edge of the floating cover 102. The guide post holes 102a are slidably fitted into each guide post 104a.

[0039] Furthermore, the lower end of the guide column 104a group is fixedly installed with the same bottom support ring 104a-1. The outer side wall of the bottom support ring 104a-1 is attached to the inner wall of the tank body 1 to prevent the floating cover 102 from falling into the tank body 1.

[0040] The operation process in this embodiment is as follows:

[0041] When heat exchange occurs, high-temperature materials enter the tank 1, causing the air pressure inside the tank 1 to increase. The increased air pressure pushes the floating cover 102 to move upward. The guide post hole 102a on the floating cover 102 moves steadily upward along the guide post 104a, ensuring the sealing of the floating cover 102 to the tank 1 when the floating cover 102 moves upward.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. An open heat exchanger for oil and fat production, comprising a tank body (1) and a tube bundle assembly (2) installed in the tank body (1), characterized in that: The column pipe assembly (2) comprises a set of sleeve pipes (201) and a set of telescopic pipes (202), two telescopic pipes (202) are sleeved in each sleeve pipe (201), the two telescopic pipes (202) in each sleeve pipe (201) are communicated with the adjacent telescopic pipe (202) through the elbow pipe (202a) away from the end of the sleeve pipe (201), one end of the two telescopic pipes (202) penetrates the tank body (1), the lower end of the tank body (1) is closed and the upper end is open, the lower end of the tank body (1) is communicated with the discharge pipe (101), the floating cover (102) is sleeved in the tank body (1) above the column pipe assembly (2), the floating cover (102) is communicated with the feed pipe (103).

2. The open heat exchanger for oil production according to claim 1, characterized in that: The sleeve pipe (201) comprises an internally threaded pipe (201a) and an externally threaded pipe (201b), the internally threaded pipe (201a) is fixedly provided with an internally threaded sleeve at one end, the externally threaded pipe (201b) is provided with an externally threaded sleeve at one end, and the externally threaded sleeve at one end of the externally threaded pipe (201b) is screwed into the threaded sleeve at one end of the internally threaded pipe (201a).

3. The open heat exchanger for oil production according to claim 2, characterized in that: The inner walls of the two ends of the sleeve pipe (201) are fixedly provided with inner clamping edges (201c) respectively, and the outer side of one end of the telescopic pipe (202) sleeved in the sleeve pipe (201) is fixedly provided with an outer clamping edge (202b).

4. The open heat exchanger for oil production according to claim 3, characterized in that: The outer wall of the outer clamping edge (202b) is provided with a circumferential sealing ring groove (202b-1), and the sealing ring groove (202b-1) is sleeved with a rubber sealing ring (202b-2).

5. The open heat exchanger for oil production according to claim 4, characterized in that: The outer sides of the two telescopic pipes (202) in the sleeve pipe (201) are respectively sleeved with compression springs (202c), and the compression springs (202c) are sleeved between the outer clamping edge (202b) and the inner clamping edge (201c).

6. The open heat exchanger for oil production according to claim 5, characterized in that: The column pipe assembly (2) further comprises two column pipe ring pieces (203), the plate surface near the edge of the column pipe ring piece (203) is provided with a set of sleeve pipe through holes (203a) in a circumferential array, the upper and lower ends of the sleeve pipe (201) set are sleeved in the sleeve pipe through holes (203a) of the two column pipe ring pieces (203) respectively, and the plate surface center of the column pipe ring piece (203) is provided with a liquid through hole (203b).

7. The open heat exchanger for oil production according to claim 1, characterized in that: The upper end of the tank body (1) is sleeved with a pressing top ring (104), the plate surface near the inner ring edge of the lower end of the pressing top ring (104) is fixedly provided with a set of guide columns (104a) in a circumferential array, the plate surface near the edge of the floating cover (102) is provided with a set of guide column holes (102a) in a circumferential array, and the guide column holes (102a) are respectively sleeved in the guide columns (104a).

8. The open heat exchanger for oil production according to claim 7, characterized in that: The guide column (104a) set is fixedly installed with the same bottom support ring (104a-1) at the lower end, and the outer side wall of the bottom support ring (104a-1) is attached to the inner wall of the tank body (1).

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