Heat pipe heat dissipation device, mechanical seal heat dissipation system and use method

Abstract

The invention relates to the technical field of mechanical seal heat dissipation, and discloses a heat pipe heat dissipation device, a mechanical seal heat dissipation system and a using method.The heat pipe heat dissipation device is characterized in that the heat pipe heat dissipation device comprises a shell, the shell is provided with a water inlet and a water outlet which are arranged in a penetrating mode, and the water inlet is suitable for being communicated with a water outlet connector of a mechanical seal assembly; the water outlet is suitable for being connected with a water inlet connector of a mechanical sealing assembly, the mechanical sealing assembly is suitable for being fixedly connected with a sealing shaft, and a to-be-cooled medium with heat flows in the shell. The heat dissipation pipe is partially arranged in the shell, the part, located in the shell, of the heat dissipation pipe is arranged between the water inlet and the water outlet, and the interior of the heat dissipation pipe is suitable for containing a cooling medium. Therefore, the sealing performance of the mechanical sealing assembly is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical seal heat dissipation, and in particular to a heat pipe heat dissipation device, a mechanical seal heat dissipation system and a use method thereof. Background Art

[0002] Mechanical seal is a common sealing method used in mechanical equipment to prevent fluid leakage. During the operation of mechanical equipment, a lot of heat is often generated, and the presence of mechanical seals prevents the heat from dissipating.

[0003] Existing mechanical seals often use natural cooling to dissipate heat through the mechanical seals themselves, dissipating and transferring heat to the surrounding environment. After the mechanical equipment stops running, it will slowly dissipate heat, causing the mechanical seals to be in a long-term reciprocating cycle of cooling and heating, which in turn affects their own sealing. Summary of the invention

[0004] In view of this, the present invention provides a heat pipe heat dissipation device, a mechanical seal heat dissipation system and a method of use to solve the problem that existing mechanical seals often dissipate heat through natural cooling, and the mechanical seals reciprocate in a heating and cooling environment for a long time, affecting their own sealing.

[0005] In a first aspect, the present invention provides a heat pipe heat dissipation device, comprising: a shell, the shell is provided with a water inlet and a water outlet which are arranged through, the water inlet is suitable for being connected to the water outlet joint of the mechanical seal assembly, the water outlet is suitable for being connected to the water inlet joint of the mechanical seal assembly, the mechanical seal assembly is suitable for being fixedly connected to the sealing shaft, and the shell is suitable for the flow of a medium to be cooled carrying heat; a heat dissipation pipe, which is partially arranged in the shell, and the heat dissipation pipe part located in the shell is arranged between the water inlet and the water outlet, and the heat dissipation pipe is suitable for accommodating the cooling medium.

[0006] It is understandable to those skilled in the art that the mechanical seal assembly of the present application will generate heat due to its fixed connection with the sealing shaft, and the heat of the mechanical seal assembly will be contained by the flow of the medium to be cooled, and the water inlet of the shell is suitable for being connected to the water outlet joint of the mechanical seal assembly, and the water outlet is suitable for being connected to the water inlet joint of the mechanical seal assembly. In the heat dissipation pipe, the cooling medium exchanges heat with the medium to be cooled to reduce the temperature of the medium to be cooled. By setting the shell and the heat dissipation pipe, the temperature of the mechanical seal assembly is kept within a reasonable range, and there will be no sudden temperature rise or the temperature rise is not large, thereby ensuring the sealing of the mechanical seal assembly.

[0007] In some embodiments, the heat dissipation pipe is "U"-shaped, and the extending sections at both ends of the heat dissipation pipe opening extend out of the shell respectively; or, the heat dissipation pipe is serpentine, and the heat dissipation pipe partially extends out of the shell.

[0008] In some embodiments, it also includes heat dissipation fins, which are arranged on the outside of the shell and are sleeved on the outer periphery of the heat dissipation pipe.

[0009] In some embodiments, the number of the heat dissipation fins is multiple, and the heat dissipation fins are stacked along the height direction.

[0010] In some embodiments, two corresponding fixing frames are also included, and heat dissipation fins are accommodated between the two fixing frames.

[0011] In some embodiments, the heat dissipation pipe is hollow and the pressure inside the heat dissipation pipe is negative pressure.

[0012] In a second aspect, the present invention further provides a mechanical seal heat dissipation system, characterized in that it comprises the above-mentioned heat pipe heat dissipation device.

[0013] In some embodiments, a mechanical seal assembly is also included, and the mechanical seal assembly includes a sealing cover and a sealing shaft. The sealing cover is provided with a water inlet joint and a water outlet joint, and the sealing cover is sleeved on the outer circumference of the sealing shaft.

[0014] In some embodiments, it also includes a sealing sleeve and a sealing body, wherein the sealing sleeve is sleeved on the outer circumference of the sealing shaft, the sealing body is sleeved on the outer circumference of the sealing shaft, a gap is left between the containing end of the sealing body and the sealing shaft, the sealing sleeve is arranged in the gap, and the sealing body and the sealing cover are fixedly connected by fasteners.

[0015] In a third aspect, the present invention further provides a method for using a heat pipe heat dissipation device, wherein a cooling medium exchanges heat with a medium to be cooled in the heat dissipation pipe to reduce the temperature of the medium to be cooled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A front view of a heat pipe heat dissipation device according to an embodiment of the present invention;

[0018] Figure 2 Schematic diagram of a mechanical seal assembly according to an embodiment of the present invention.

[0019] Explanation of the reference numerals: 1. Shell; 101. Water inlet; 102. Water outlet; 2. Heat dissipation pipe; 201. Horizontal section; 202. Extending section; 3. Heat dissipation fins; 4. Fixing frame; 401. Fixed end; 5. Sealing shaft; 6. Sealing body; 601. Accommodating end; 7. Sealing gland; 701. Water inlet joint; 8. Sealing sleeve; 9. Sealing core; 10. Transmission screw; 11. Transmission ring; 12. Fastener; 13. Sealing ring. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0021] like Figure 1-2 As shown, the heat pipe heat dissipation device provided in this embodiment mainly includes a shell 1 and a heat dissipation pipe 2 connected to the shell 1.

[0022] Specifically, the shell 1 is provided with a water inlet 101 and a water outlet 102 which are arranged through-through, the water inlet 101 is suitable for being connected with the water outlet joint of the mechanical seal assembly, the water outlet 102 is suitable for being connected with the water inlet joint 701 of the mechanical seal assembly, the mechanical seal assembly is suitable for being fixedly connected with the sealing shaft 5, and the shell 1 is suitable for the flow of a medium to be cooled carrying heat; the heat dissipation pipe 2 is partially arranged in the shell 1, and the heat dissipation pipe 2 located in the shell 1 is partially arranged between the water inlet 101 and the water outlet 102, and the heat dissipation pipe 2 is suitable for accommodating the cooling medium.

[0023] In this embodiment, since the mechanical seal assembly is fixedly connected to the sealing shaft 5, the mechanical seal assembly will generate heat, and the heat of the mechanical seal assembly is contained by the flow of the medium to be cooled, and the water inlet 101 of the shell 1 is suitable for being connected to the water outlet joint of the mechanical seal assembly, and the water outlet 102 is suitable for being connected to the water inlet joint 701 of the mechanical seal assembly. In the heat dissipation pipe 2, the cooling medium exchanges heat with the medium to be cooled to reduce the temperature of the medium to be cooled.

[0024] Specifically, the heat dissipation pipe 2 is "U" shaped, and both ends of the heat dissipation pipe 2 extend out of the housing 1. Figure 1As shown, the heat dissipation pipe 2 is provided with a horizontal section 201 and two extended sections 202, and a "U" shape is formed by a horizontal section 201 and two extended ends, wherein the connection between the horizontal section 201 and each extended section 202 is arc-shaped, so as to facilitate the sufficient flow of the cooling medium in the heat dissipation pipe 2. Through the arrangement of the horizontal section 201, the heat dissipation pipe 2 has a sufficiently long length to be located in the housing 1, so that the cooling medium in the heat dissipation pipe 2 can fully exchange heat with the medium to be cooled with heat flowing through the housing 1, thereby reducing the heat carried by the medium to be cooled.

[0025] It should be noted that the heat dissipation pipe 2 in this embodiment can also be serpentine. Through the serpentine arrangement, the heat dissipation pipe 2 can have a sufficient length in the shell 1, so that the cooling medium in the heat dissipation pipe 2 and the medium to be cooled flowing in the shell 1 can fully exchange heat.

[0026] That is to say, whether the heat dissipation tube 2 is "U"-shaped or serpentine-shaped, it belongs to the protection scope of this embodiment, and the heat dissipation tube 2 and the shell 1 are relatively fixed, that is, a part of the heat dissipation tube 2 is located in the shell 1 and the other part extends out of the shell 1.

[0027] like Figure 1 As shown, in some embodiments, heat dissipation fins 3 are further included, and the heat dissipation fins 3 are arranged outside the shell 1, and the heat dissipation fins 3 are sleeved on the outer periphery of the heat dissipation tube 2.

[0028] In this embodiment, by providing the heat dissipation fins 3, the heat dissipation of the extended section 202 of the heat dissipation pipe 2 outside the shell 1 is accelerated, and the heat dissipation efficiency is improved. That is, the heat of the extended section 202 of the heat dissipation pipe 2 is transferred to the heat dissipation fins 3, and the heat dissipation fins 3 increase the heat dissipation area of ​​the heat dissipation pipe 2, thereby accelerating the heat exchange rate between the heat dissipation pipe 2 and the external air.

[0029] like Figure 1 As shown, in some embodiments, the number of the heat dissipation fins 3 is several, and the heat dissipation fins 3 are stacked in sequence along the height.

[0030] In this embodiment, since the heat sink fins 3 are sleeved on the outer periphery of the heat sink 2, the heat sink fins 3 are stacked in sequence along the height direction to increase the contact length between the extended section 202 and the heat sink fins 3, so that more heat of the cooling medium in the extended section 202 can be dissipated through the heat sink fins 3.

[0031] like Figure 1 As shown, in some embodiments, two corresponding fixing frames 4 are also included, and the heat dissipation fins 3 are accommodated between the two fixing frames 4.

[0032] In this embodiment, the fixing frame 4 accommodates the heat sink fins 3 to fix the heat sink fins 3, thereby preventing the heat sink fins 3 from moving relative to the heat pipe 2, and the fixing frame 4 is provided with a fixing end 401, and the heat sink fins 3 are restricted in the width direction between the two fixing ends 401.

[0033] Specifically, the fixing method of the fixing frame 4 and the heat dissipation fins 3 is not limited here, and a detachable connection can be achieved by bolt connection, or an integrated setting can be achieved by welding; the fixing method of the fixing frame 4 and the heat dissipation pipe 2 is not limited here, and they can be connected by bonding, welding, etc.

[0034] like Figure 1 As shown, the heat dissipation pipe 2 is hollow and the pressure inside the heat dissipation pipe 2 is negative pressure.

[0035] In this embodiment, the cooling medium in the heat pipe 2 can realize vapor-liquid phase change heat transfer, that is, the cooling medium in the heat pipe 2 located in the shell 1 changes from liquid phase to gas phase, realizing heat absorption of the medium to be cooled in the shell 1, and the cooling medium in the heat pipe 2 located outside the shell 1 changes from gas phase to liquid phase, realizing heat dissipation with the external air. It should be noted that Figure 1 As shown, the number of heat pipes 2 in the present application is 3, and each heat pipe 2 is provided with two fixing frames 4 and heat fins 3 arranged between the two fixing frames 4. In fact, the number in the present application is only for illustration, and those skilled in the art can set other numbers of heat pipes 2, heat fins 3 and fixing frames 4 according to actual conditions, and the remaining numbers of heat pipes 2, fixing frames 4, etc. are all within the protection scope of the present application.

[0036] According to an embodiment of the present invention, on the other hand, a mechanical seal heat dissipation system is provided, comprising the above-mentioned heat pipe heat dissipation device and a mechanical seal assembly.

[0037] like Figure 2 As shown, in some embodiments, the mechanical seal assembly includes a sealing gland 7 and a sealing shaft 5 , the sealing gland 7 is provided with a water inlet joint 701 and a water outlet joint, and the sealing gland 7 is sleeved on the outer periphery of the sealing shaft 5 .

[0038] In this embodiment, the sealing cover 7 is sleeved on the outer periphery of the sealing shaft 5, and the heat of the sealing shaft 5 will be transferred to the sealing cover 7. The sealing cover 7 is provided with a water inlet joint 701 and a water outlet joint, and a flow channel is connected between the water inlet joint 701 and the water outlet joint. The medium to be cooled in the flow channel will fully exchange heat with the sealing cover 7, so that the medium to be cooled can take out the heat. After the medium to be cooled flows out from the water outlet interface, it enters the water inlet 101 of the shell 1.

[0039] like Figure 2As shown, in some embodiments, a sealing sleeve 8 and a sealing body 6 are also included. The sealing sleeve 8 is sleeved on the outer periphery of the sealing shaft 5, and the sealing body 6 is sleeved on the outer periphery of the sealing shaft 5. A gap is left between the accommodating end 601 of the sealing body 6 and the sealing shaft 5. The sealing sleeve 8 is arranged in the gap, and the sealing body 6 and the sealing cover 7 are fixedly connected by fasteners 12.

[0040] In this embodiment, the sealing sleeve 8 and the sealing body 6 are respectively sleeved on the outer circumference of the sealing shaft 5. In order to accommodate the sealing body 6, a gap is set between the accommodating end 601 of the sealing body 6 and the sealing shaft 5, so that the sealing sleeve 8 is arranged in the gap. Figure 2 As shown, the sealing gland 7 is provided with a through hole, the inner circumference of the through hole matches the outer circumference of the sealing sleeve 8, and the end surface of the sealing body 6 and the end surface of the sealing gland 7 are fixedly connected by a fastener 12, and the fastener 12 is sleeved on the nut, so as to simultaneously fix the sealing body 6 and the sealing sleeve 8 through the sealing gland 7 to limit any movement of the two, and the nut will also limit any movement of the sealing gland 7. Specifically, the fastener 12 is a screw.

[0041] like Figure 2 As shown, in some embodiments, a sealing ring 13 is further provided between the sealing sleeve 8 and the sealing shaft 5, and a sealing core 9 is further provided in the receiving end 601 of the sealing body 6. The sealing core 9 is sleeved on the outer periphery of the sealing sleeve 8. The arrangement of the sealing ring 13 and the sealing core 9 further enhances the sealing performance of the mechanical sealing assembly. In addition, a transmission ring 11 is further provided at the end of the sealing sleeve 8, and the transmission ring 11 is fastened by a transmission screw 10. The arrangement of the transmission ring 11 prevents the sealing sleeve 8 from rotating.

[0042] In some embodiments, the mechanical seal heat dissipation system of the present application also includes a power pump, which is arranged between the shell 1 and the mechanical seal assembly to provide power for the movement of the medium to be cooled, thereby forming a pipeline circulation by the power pump, the shell 1 and the mechanical seal assembly.

[0043] A method for using a heat pipe heat dissipation device, wherein a power pump provides power for the flow of a medium to be cooled, the medium to be cooled enters the water inlet joint 701 of the sealing gland 7, and fully exchanges heat with the sealing gland 7 in the flow channel of the sealing gland 7, so that the medium to be cooled takes out heat, and the medium to be cooled flows out from the water outlet interface and enters the water inlet 101 of the shell 1, and the medium to be cooled in the shell 1 fully exchanges heat with the cooling medium of the heat dissipation pipe 2, and then flows out from the water outlet 102 of the shell 1 and enters the power pump. After the heat dissipation pipe 2 undergoes heat exchange, the cooling medium in the heat dissipation pipe 2 located in the shell 1 changes from liquid phase to gas phase, thereby absorbing heat from the medium to be cooled in the shell 1, and the cooling medium in the heat dissipation pipe 2 located outside the shell 1 changes from gas phase to liquid phase, thereby dissipating heat with the external air, and during the heat dissipation process, the heat dissipation speed is accelerated by the heat dissipation fins 3, thereby achieving rapid heat dissipation.

[0044] The heat pipe heat dissipation device, mechanical seal heat dissipation system and use method provided by the present invention have the following advantages: (1) by setting up a shell and a heat dissipation pipe, the temperature of the mechanical seal assembly is kept within a reasonable range, and there will be no sudden temperature rise or the temperature rise is small, thereby ensuring the sealing of the mechanical seal assembly; (2) after the heat dissipation pipe 2 undergoes heat exchange, the cooling medium in the heat dissipation pipe 2 located in the shell 1 changes from liquid to gas, thereby absorbing heat from the medium to be cooled in the shell 1, and the cooling medium in the heat dissipation pipe 2 located outside the shell 1 changes from gas to liquid, thereby dissipating heat with the external air. During the heat dissipation process, the heat dissipation speed is accelerated by the heat dissipation fins 3, thereby performing rapid heat dissipation; (3) heat dissipation pipes 2 of different shapes are arranged, so that the heat dissipation pipe 2 can exchange heat with the medium to be cooled in the shell as much as possible, thereby improving the heat exchange efficiency.

[0045] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A heat pipe heat dissipation device, characterized in that: include: A shell (1), the shell (1) being provided with a water inlet (101) and a water outlet (102) which are arranged through-through, the water inlet (101) being suitable for communicating with a water outlet joint of a mechanical seal assembly, the water outlet (102) being suitable for communicating with a water inlet joint (701) of the mechanical seal assembly, the mechanical seal assembly being suitable for being fixedly connected to a seal shaft (5), and the shell (1) being suitable for flowing a medium to be cooled carrying heat; A heat dissipation pipe (2), wherein a portion of the heat dissipation pipe (2) is disposed in the housing (1), the portion of the heat dissipation pipe (2) located in the housing (1) is disposed between the water inlet (101) and the water outlet (102), and the heat dissipation pipe (2) is suitable for accommodating a cooling medium.

2. The heat pipe heat dissipation device according to claim 1, characterized in that: The heat dissipation pipe (2) is U-shaped, and the extension sections (202) at both ends of the opening of the heat dissipation pipe (2) respectively extend out of the shell (1); or, the heat dissipation pipe (2) is serpentine-shaped, and part of the heat dissipation pipe (2) extends out of the shell (1).

3. The heat pipe heat dissipation device according to claim 2, characterized in that: It also comprises heat dissipation fins (3), wherein the heat dissipation fins (3) are arranged outside the shell (1), and the heat dissipation fins (3) are sleeved on the outer periphery of the heat dissipation pipe (2).

4. The heat pipe heat dissipation device according to claim 3, characterized in that: The number of the heat dissipation fins (3) is a plurality, and the heat dissipation fins (3) are stacked in a height direction.

5. The heat pipe heat dissipation device according to claim 4, characterized in that: It also comprises two correspondingly arranged fixing frames (4), and the heat dissipation fins (3) are accommodated between the two fixing frames (4).

6. The heat pipe heat dissipation device according to claim 1, characterized in that: The heat dissipation pipe (2) is hollow inside, and the pressure inside the heat dissipation pipe (2) is negative pressure.

7. A mechanical seal heat dissipation system, characterized in that: A heat pipe heat dissipation device comprising any one of claims 1-6.

8. The mechanical seal heat dissipation system according to claim 7, characterized in that: It also comprises a mechanical seal assembly, which comprises a sealing gland (7) and a sealing shaft (5), wherein the sealing gland (7) is provided with a water inlet joint (701) and a water outlet joint, and the sealing gland (7) is sleeved on the outer periphery of the sealing shaft (5).

9. The mechanical seal heat dissipation system according to claim 8, characterized in that: It also comprises a sealing sleeve (8) and a sealing body (6), wherein the sealing sleeve (8) is sleeved on the outer circumference of the sealing shaft (5), and the sealing body (6) is sleeved on the outer circumference of the sealing shaft (5), a gap is left between the accommodating end (601) of the sealing body (6) and the sealing shaft (5), the sealing sleeve (8) is arranged in the gap, and the sealing body (6) and the sealing gland (7) are fixedly connected by a fastener (12).

10. A method for using a heat pipe heat dissipation device, used for using the heat pipe heat dissipation device according to claim 1, characterized in that: In the heat dissipation pipe (2), the cooling medium exchanges heat with the medium to be cooled, so as to reduce the temperature of the medium to be cooled.

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