Gear box heat exchanger joint and heat exchanger

Abstract

The present invention relates to the field of heat exchange technology, and specifically to a gearbox heat exchanger joint and a heat exchanger. The gearbox heat exchanger joint includes a first fixing member and a first mounting member, wherein the first fixing member is connected to the gearbox heat exchanger and the gearbox, the first fixing member is provided with a liquid inlet channel along its axial direction, the first mounting member is connected to the first fixing member, and a limiting hole is provided on the inner wall of the liquid inlet channel for limiting the first fixing member, thereby solving the technical problem of the heat exchanger breaking due to uneven force at both ends of the joint during installation, and producing a technical effect of enhancing installation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchange, and in particular to a gear box heat exchanger joint and a heat exchanger. Background Art

[0002] A heat exchanger is an energy-saving device that transfers heat between two or more fluids at different temperatures. It transfers heat from a fluid with a higher temperature to a fluid with a lower temperature so that the fluid temperature reaches the specified index of the process to meet the needs of process conditions. It is also one of the main equipment for improving energy utilization and is widely used in petroleum, chemical industry, metallurgy, electric power, shipping, central heating, refrigeration and air conditioning.

[0003] For example, in the gearbox of large equipment, lubricating oil is stored for lubrication. However, high temperature during equipment operation will reduce the performance of the lubricating oil. Therefore, a good lubrication and cooling system can not only protect the gears and bearings inside the gearbox, but also absorb impact and vibration, reduce friction, and prevent gear pitting and bonding.

[0004] When installing a traditional heat exchanger, two skilled workers are required to apply force to the joints of the heat exchanger on the inside and outside of the tube wall respectively to ensure that the heat exchanger will not break due to uneven force on both ends of the joints during installation. However, this will increase labor costs and reduce work efficiency.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The invention provides a gear box heat exchanger joint and a heat exchanger, which can complete the installation of the gear box heat exchanger joint under the operation of one worker.

[0007] The present invention protects a gearbox heat exchanger joint, including a first fixing part and a first mounting part. The first fixing part is connected to the gearbox heat exchanger and the gearbox. The first fixing part is provided with a liquid inlet channel along its axial direction. The first mounting part is connected to the first fixing part. A limiting hole is provided on the inner wall of the liquid inlet channel for limiting the first fixing part.

[0008] With the above solution, the liquid inlet channel is used to input liquid into the heat exchanger, and the limiting hole can be arranged along the axial direction of the liquid inlet channel.

[0009] Preferably, the cross section of the limiting hole is set to be a polygon.

[0010] By adopting the above solution, the polygon may be a hexagon, and in this case, the long rod may also be set to have an outer diameter smaller than the outer diameter of the cross section of the limiting hole.

[0011] The present invention also protects a heat exchanger using the gear box heat exchanger joint, including a heat exchange tube, wherein the heat exchange tube includes a guide tube and a plurality of downstream tubes, wherein both ends of the guide tube are connected to the downstream tubes, and the guide tube and the downstream tubes are integrally formed; the heat exchange tube also includes a liquid inlet end and a liquid outlet end, wherein the liquid inlet end and the liquid outlet end are respectively connected to the first fixing member.

[0012] By adopting the above solution, the liquid inlet end of the downstream pipe can be deeply inserted into the liquid inlet channel. The liquid inlet end of the downstream pipe can be integrally formed with the liquid inlet pipe or can be detachably connected by welding or other methods.

[0013] Furthermore, the guide tube is arranged in an arc shape.

[0014] With the above solution, when the guide tube is designed at a right angle, the flow rate of the water flow in the tube will be affected. When the guide tube is set in an arc shape, the water flow can change direction more smoothly. This embodiment provides two types of guide tubes, one for changing the direction of the water flow upward or downward, and the other for changing the direction of the water flow to the left or right.

[0015] Preferably, the outer wall of the heat exchange tube is provided with fins.

[0016] In the above scheme, fins are usually added to the surface of the heat exchange device where heat transfer is required by adding a metal sheet with strong thermal conductivity to increase the heat transfer surface area of ​​the heat exchange device. The metal sheet with this function is called a fin. The surface structure of the fin includes flat fins, intermittent fins, corrugated fins and perforated fins.

[0017] Furthermore, the heat exchanger also includes an equipment fixing device connected to the heat exchange tube.

[0018] By adopting the above solution, the equipment fixing device can strengthen the connection between the heat exchanger and the gear box, making it more stable.

[0019] The equipment device may adopt a pipe clamp structure.

[0020] The equipment fixing device comprises a connecting hole, and the heat exchange tube passes through the connecting hole and is connected to the equipment fixing device so that the heat exchange tube is limited in position.

[0021] With the above solution, there are many ways to connect the heat exchange tube to the equipment fixing device, including screw connection, welding, etc. However, screw connection or welding will cause certain damage to the heat exchange tube, thereby causing leakage. The setting of the connecting hole can effectively avoid this situation.

[0022] Specifically, the equipment fixing device includes a first fixing part arranged on the first side of the heat exchange tube and a second fixing part on the second side, the connecting hole includes a first connecting hole respectively arranged on the first fixing part and the second fixing part, and a plurality of guide tubes are provided, and the guide tubes pass through the first connecting hole to limit the heat exchange tube.

[0023] By adopting the above scheme, a connection method for an equipment fixing device is provided, wherein the first fixing part and the second fixing part can be connected to the gear box through equipment fixing bolts, the first fixing part and the second fixing part can adopt the same structural form, and the first connecting holes of the first fixing part and the second fixing part can be respectively provided with multiple ones, and the guide pipe is passed through a first connecting hole and then passed out through another first connecting hole to be connected with the downstream pipe.

[0024] Preferably, the first fixing portion and / or the second fixing portion includes a first limiting body and a second limiting body, the first limiting body and the second limiting body are detachably connected, and the first connecting hole includes a first half hole arranged on the first limiting body, and a second half hole arranged on the second limiting body and adapted to the first half hole.

[0025] By adopting the above scheme, the first fixing part and / or the second fixing part can be made of metal, and the spacing of the first connecting hole is adapted to the structure of the heat exchange tube. When in use, the heat exchange tube is first placed at the position of the second half hole, and then the first limiting body is connected to the second limiting body. A connecting piece can be used to pass through the second connecting hole and the third connecting hole for connection. At this time, the first connecting hole composed of the first half hole and the second half hole is just adapted to the heat exchange tube.

[0026] Preferably, the plurality of downstream pipes include a plurality of groups of downstream pipes, and the downstream pipes in each group are arranged in parallel.

[0027] By adopting the above solution, each group of downstream pipes can be arranged in parallel by setting the curvature of the guide pipe.

[0028] Preferably, the cross section of the limiting hole is set to be a polygon.

[0029] By adopting the above solution, the polygon may be a hexagon, and in this case, the long rod may also be set to have an outer diameter smaller than the outer diameter of the cross section of the limiting hole.

[0030] Beneficial effects of the present invention:

[0031] 1. The setting of the limiting holes solves the technical problem that the heat exchanger is difficult to install, and produces a technical effect of enhancing installation efficiency.

[0032] 2. The downstream pipe and the guide pipe are connected and integrally formed to solve the technical problem that the heat exchange pipe is prone to leakage and space occupation in a high temperature environment, and produce the technical effect of enhancing durability and effectively utilizing space.

[0033] 3. The arrangement of the fins solves the technical problem of poor thermal conductivity and produces a technical effect of enhancing thermal conductivity.

[0034] 4. The provision of the equipment fixing device solves the technical problem of unstable installation of the heat exchanger, and produces the technical effect of firm installation and enhanced durability of use.

[0035] 5. The provision of the connection hole solves the technical problem of damage to the heat exchange tube when the heat exchange tube is connected to the equipment fixture, and produces a technical effect of enhancing durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 A top view of an embodiment of the present invention;

[0038] Figure 2 A front view of an embodiment of the present invention;

[0039] Figure 3 for Figure 1 Partial schematic diagram;

[0040] Figure 4 for Figure 2 Partial schematic diagram;

[0041] Figure 5 for Figure 1 Another partial schematic diagram;

[0042] Figure 6 A schematic diagram of an implementation method of the device fixing device of the present invention;

[0043] Description of reference numerals:

[0044] Through the above-mentioned description of the accompanying drawings, combined with the embodiments of the present invention, the technical solution of the present invention can be more clearly understood and explained.

[0045] 11-guide tube, 12-downstream tube, 13-liquid inlet end, 14-liquid outlet end, 15-fin, 21-first fixing piece, 211-liquid inlet channel, 2111-limiting hole, 212-fixing tube, 213-blocking body, 2131-annular ring, 22-first mounting piece, 221-washer, 222-nut, 223-inlet and outlet pipe joint, 3-long rod, 41-first fixing part, 42-second fixing part, 43-first connecting hole, 44-equipment fixing bolt, 45-second connecting hole, 46-third connecting hole, 51-reduction gearbox. DETAILED DESCRIPTION

[0046] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0047] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0048] refer to Figure 3 As shown, the present invention protects a gearbox heat exchanger joint, including a first fixing member 21 and a first mounting member 22. The first fixing member 21 is connected to the gearbox heat exchanger and the gearbox. The first fixing member 21 is provided with a liquid inlet channel 211 along its axial direction. The first mounting member 22 is connected to the first fixing member 21. A limiting hole 2111 is provided on the inner wall of the liquid inlet channel 211 for limiting the first fixing member 21.

[0049] By adopting the above scheme, a mounting hole for the first fixing member 21 to pass through can be opened on the reduction box body 51, so that the first fixing member 21 is passed through the mounting hole. At this time, the first mounting member 22 can be screwed together with the first fixing member 21 to safely fix the heat exchanger. However, in actual use, when the first mounting member 22 is screwed, the first fixing member 21 will also be driven to rotate, resulting in the first mounting member 22 and the first fixing member 21 cannot be tightly connected. At this time, a limiting hole 2111 is set inside the liquid inlet channel 211, and the operator can select a long rod 3 that matches the shape of the limiting hole 2111. Before installing the first mounting member 22, the long rod 3 is first pushed to the position of the limiting hole 2111 along the liquid inlet channel 211 by hand, and then the first mounting member 22 is passed through the long rod 3 to the junction with the first fixing member 21. At this time, the operator holds the long rod 3 with his left hand and applies a certain force to keep it from rotating, and screws the first mounting member 22 with his right hand. At this time, since the limiting hole 2111 is stuck by the long rod 3, when the first mounting member 22 is screwed by the right hand, the first fixing member 21 does not rotate. At this time, the installation can be successfully completed with only one operator, thereby improving the installation efficiency.

[0050] refer to Figure 3 As shown, the first fixing member 21 includes a fixing tube 212 and a blocking body 213 disposed at one end of the fixing tube 212 , and the liquid inlet channel 211 is opened along the axial direction of the fixing tube 212 .

[0051] By adopting the above solution, the blocking body 213 can be integrally formed with the fixing tube 212 , the fixing tube 212 is inserted into the mounting hole, and the outer diameter of the blocking body 213 is larger than the outer diameter of the mounting hole.

[0052] refer to Figure 3 As shown, the blocking body 213 is provided with an annular ring 2131 .

[0053] By adopting the above scheme, the outer diameter of the annular ring 2131 is larger than the outer diameter of the mounting hole, and a sealing ring can be arranged between the annular ring 2131 and the upper surface of the reduction gear box body 51. When liquid is introduced, the sealing ring is flexible and has a certain viscosity, so it can prevent the liquid from flowing out.

[0054] refer to Figure 3 As shown, the first mounting member 22 includes a washer 221 , a nut 222 , and an inlet and outlet pipe joint 223 adapted to the fixed pipe 212 , and the washer 221 , the nut 222 , and the inlet and outlet pipe joint 223 are arranged in sequence from top to bottom.

[0055] By adopting the above scheme, the washer 221 is provided with a hole adapted to the fixed tube 212, the fixed tube 212 passes through the washer 221, and the washer 221 is attached to the lower surface of the reduction gearbox 51, playing a sealing role when connected with the nut 222. Before tightening the nut, the long rod 3 is passed through the limiting hole 2111, and a thread adapted to the nut 222 can be set on the outer wall of the fixed tube 212, and then the nut 222 is rotated. When tightening, the long rod 3 is removed, and then the inlet and outlet pipe joint 223 is installed.

[0056] refer to Figure 4 As shown, the cross section of the limiting hole 2111 is set to be a polygon.

[0057] By adopting the above solution, the polygon can be a hexagon, and in this case, the long rod 3 can also be set to have an outer diameter smaller than the outer diameter of the cross section of the limiting hole 2111.

[0058] The present invention also protects a heat exchanger, including a heat exchange tube, wherein the heat exchange tube includes a guide tube 11 and a plurality of downstream tubes 12, wherein both ends of the guide tube 11 are connected to the downstream tubes 12, and the guide tube 11 and the downstream tubes 12 are integrally formed; the heat exchange tube also includes a liquid inlet end 13 and a liquid outlet end 14, wherein the liquid inlet end 13 and the liquid outlet end 14 are respectively connected to the first fixing member 21.

[0059] With the above solution, the heat exchanger can be placed in the gear box of the mechanical equipment. The gear box contains lubricating oil. When the mechanical equipment works for a long time, the gears and other mechanical parts in the gear box will work continuously. At this time, high temperature will be generated, which will increase the temperature of the lubricating oil in the gear box, reduce the viscosity of the lubricating oil, and deteriorate the lubrication effect. At the same time, the aging of the oil will be accelerated, causing the bearing temperature to rise. In more serious cases, the equipment will be damaged. Therefore, a heat exchanger needs to be installed in the gear box to cool the lubricating oil.

[0060] When in use, the fluid in the heat exchange tube can be cold water. The cold water enters the liquid inlet end 13 from the gear box heat exchanger joint, flows along the guide tube 11 and the downstream tube 12, absorbs heat during the flow, and reduces the temperature of the lubricating oil in the gear box. Finally, it is discharged from the liquid outlet end 14. The liquid outlet end 14 can be connected to an external cooling device. The hot water discharged from the liquid outlet end 14 will become cold water again after being cooled by the cooling device. At this time, the cooling device can be connected to the liquid inlet end 13, and flow into the heat exchange tube again to cool the lubricating oil, forming a cycle.

[0061] The downstream pipe 12 can make the water flow in the pipe flow along a certain pattern, and can be arranged horizontally, longitudinally or in a curved manner. The guide pipe 11 is used to change the flow of the water flow in the pipe according to the pattern. Through the coordinated arrangement of the downstream pipe 12 and the guide pipe 11, the heat exchange pipe can be arranged into different shapes and structures according to actual needs to adapt to the use environment, so that the space can be effectively utilized. For example, when the downstream pipe 12 is a straight pipe, the guide pipe 11 can include a first guide portion and a second guide portion. The angle between the first guide portion and the second guide portion can be an obtuse angle or an acute angle, so that the downstream pipe 12 is distributed vertically. If the downstream pipe 12 and the guide pipe 11 are connected by detachable means such as welding and screw connection, when the heat exchange pipe is placed in high-temperature lubricating oil for a long time, the welding point will be damaged or oil leakage will occur due to loose screw connection. When an integrally formed connection is adopted, this problem can be effectively avoided; the heat exchange pipe can be made of metal copper.

[0062] refer to Figure 1 , Figure 2 , Figure 5 As shown, the guide tube 11 is arranged in an arc shape.

[0063] With the above solution, when the guide tube 11 is designed at a right angle, the flow rate of the water flow in the tube will be affected. When the guide tube 11 is set in an arc shape, the water flow can change direction more smoothly. In this embodiment, two types of guide tubes 11 are provided, one for changing the direction of the water flow upward or downward, and the other for changing the direction of the water flow to the left or right.

[0064] refer to Figure 1 , Figure 2 As shown, the outer wall of the heat exchange tube is provided with fins 15.

[0065] In the above scheme, fins are usually added to the surface of the heat exchange device where heat transfer is required by adding a metal sheet with strong thermal conductivity to increase the heat transfer surface area of ​​the heat exchange device. The metal sheet with this function is called a fin. The surface structure of the fin includes flat fins, intermittent fins, corrugated fins and perforated fins.

[0066] The heat exchanger also includes an equipment fixing device connected to the heat exchange tube.

[0067] By adopting the above solution, the equipment fixing device can strengthen the connection between the heat exchanger and the gear box, making it more stable.

[0068] The equipment device may adopt a pipe clamp structure.

[0069] The equipment fixing device comprises a connecting hole, and the heat exchange tube passes through the connecting hole and is connected to the equipment fixing device so that the heat exchange tube is limited in position.

[0070] With the above solution, there are many ways to connect the heat exchange tube to the equipment fixing device, including screw connection, welding, etc. However, screw connection or welding will cause certain damage to the heat exchange tube, thereby causing leakage. The setting of the connecting hole can effectively avoid this situation, thereby bringing about the technical effect of safer use and more convenient installation.

[0071] refer to Figure 1 As shown, the equipment fixing device includes a first fixing portion 41 arranged on the first side of the heat exchange tube and a second fixing portion 42 on the second side, the connecting hole includes a first connecting hole 43 respectively arranged on the first fixing portion 41 and the second fixing portion 42, and the guide tube 11 is provided with a plurality of first connecting holes 43, and the guide tube 11 passes through the first connecting hole 43 to limit the heat exchange tube.

[0072] By adopting the above scheme, a connection method for an equipment fixing device is provided, the first fixing part 41 and the second fixing part 42 can be connected to the gear box through the equipment fixing bolts 44, the first fixing part 41 and the second fixing part 42 can adopt the same structural form, and the first connecting holes 43 of the first fixing part 41 and the second fixing part 42 can be respectively provided with multiple ones, and the guide pipe 11 is passed through one first connecting hole 43 and then passed out through another first connecting hole 43 to be connected with the downstream pipe 12.

[0073] refer to Figure 6 As shown, the first fixing portion 41 and / or the second fixing portion 42 include a first limiting body 47 and a second limiting body 48, and the first limiting body 47 and the second limiting body 48 are detachably connected, and the first connecting hole 43 includes a first half hole 431 arranged on the first limiting body 47, and a second half hole 432 arranged on the second limiting body 48 and adapted to the first half hole 431.

[0074] By adopting the above scheme, the first fixing part 41 and / or the second fixing part 42 can be made of metal, and the spacing of the first connecting hole 43 is adapted to the structure of the heat exchange tube. When in use, the heat exchange tube is first placed at the position of the second half hole 432, and then the first limiting body 47 is connected to the second limiting body 48. A connecting piece can be used to pass through the second connecting hole 45 and the third connecting hole 46 for connection. At this time, the first connecting hole composed of the first half hole 431 and the second half hole 432 is just adapted to the heat exchange tube.

[0075] refer to Figure 1 As shown, the plurality of downstream pipes 12 include a plurality of groups of downstream pipes 12, and the downstream pipes in each group are arranged in parallel.

[0076] By adopting the above solution, the space can be better saved by arranging multiple groups of downstream pipes 12 in parallel.

Claims

1. A heat exchanger, characterized in that: The invention comprises a first fixing member (21) and a first mounting member (22), wherein the first fixing member (21) is connected to the gearbox heat exchanger and the gearbox, the first fixing member (21) is provided with a liquid inlet channel (211) along its axial direction, the first mounting member (22) is connected to the first fixing member (21), and a limiting hole (2111) is provided on the inner wall of the liquid inlet channel (211) for limiting the position of the first fixing member (21); The cross section of the limiting hole (2111) is set to be polygonal, and a long rod (3) that matches the shape of the limiting hole (2111) is selected. The limiting hole (2111) is clamped by the long rod (3). The first mounting member (22) passes through the long rod (3) to the joint with the first fixing member (21). A certain force is applied to the long rod (3) to keep it from rotating. Therefore, when the first mounting member (22) is screwed, the first fixing member (21) does not rotate. The heat exchange tube comprises a guide tube (11) and a plurality of downstream tubes (12), the guide tube (11) having two ends connected to the downstream tubes (12), the guide tube (11) and the downstream tubes (12) being integrally formed; the heat exchange tube further comprises a liquid inlet end (13) and a liquid outlet end (14), the liquid inlet end (13) and the liquid outlet end (14) being respectively connected to the first fixing member (21).

2. The heat exchanger according to claim 1, characterized in that: The heat exchanger also includes an equipment fixing device connected to the heat exchange tube.

3. The heat exchanger according to claim 2, characterized in that: The equipment fixing device comprises a connecting hole, and the heat exchange tube passes through the connecting hole and is connected to the equipment fixing device so that the heat exchange tube is limited in position.

4. The heat exchanger according to claim 3, characterized in that: The equipment fixing device comprises a first fixing portion (41) arranged on a first side of the heat exchange tube and a second fixing portion (42) on a second side; the connection hole comprises a first connection hole (43) respectively arranged on the first fixing portion (41) and the second fixing portion (42); a plurality of guide tubes (11) are provided, and the guide tube (11) passes through the first connection hole (43) to limit the heat exchange tube.

5. The heat exchanger according to claim 4, characterized in that: The first fixing portion (41) and / or the second fixing portion (42) comprises a first limiting body (47) and a second limiting body (48), wherein the first limiting body (47) and the second limiting body (48) are detachably connected, and the first connecting hole (43) comprises a first half hole (431) arranged on the first limiting body (47), and a second half hole (432) arranged on the second limiting body (48) and adapted to the first half hole (431).

6. The heat exchanger according to any one of claims 1 to 5, characterized in that: The plurality of downstream pipes (12) include a plurality of groups of downstream pipes (12), and the downstream pipes in each group are arranged in parallel.

7. The heat exchanger according to claim 6, characterized in that: The guide tube (11) is arranged in an arc shape.

8. The heat exchanger according to claim 7, characterized in that: The outer wall of the heat exchange tube is provided with fins (15).

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