Cooling device of dry vacuum pump

Abstract

The utility model relates to a cooling device of a dry vacuum pump, the cooling device comprises a cooling pipe and a finned pipe, the finned pipe is sleeved outside the cooling pipe, the finned pipe spirally surrounds and abuts against the outside of the cooling pipe along the extension direction of the cooling pipe, a cooling medium is arranged in the finned pipe, and the cooling medium is connected with the cooling pipe. The cooling pipes and the finned pipes are made of heat conduction materials so that heat in the cooling pipes can be conducted to the finned pipes. According to the cooling device of the dry vacuum pump, after a certain volume of water flows through the cooling pipes, heat generated by all machine body parts needing heat dissipation exchanges heat with cooling water in the cooling pipes, and the finned pipes are installed outside the cooling pipes, so that the contact area of the heat and the cooling water is enlarged, the heat dissipation efficiency is improved, and the service life of the dry vacuum pump is prolonged. The heat dissipation capability of the machine body is enhanced, and dead halt caused by the heat dissipation problem under the high-load working condition is avoided.

Description

Technical Field

[0001] The utility model relates to the field of vacuum pumps, in particular to a cooling device for a dry vacuum pump. Background Art

[0002] The cooling pipe is an important unit in the heat exchange system of a dry vacuum pump. The function of the cooling pipe is to condense, reflux, and transfer the coolant to assist the coolant in dissipating heat from the machine body. At the same time, the function of the water distribution pipe is to change the water flow in various places in the pipe through its own shape, so as to balance the coolant flow in various places, thereby balancing the heat dissipated by the machine body. There are generally three types of cooling pipes: straight, spherical, and serpentine. When the machine body load is large and causes excessive heat dissipation, the ordinary straight tube cooling pipe has shortcomings such as small contact area and small heat transfer coefficient, resulting in insufficient heat dissipation capacity and unable to meet the timely heat dissipation requirements, which can easily cause the product body to overheat and freeze or malfunction, and cannot meet the heat dissipation requirements required by the product. Utility Model Content

[0003] The utility model aims to provide a cooling device for a dry vacuum pump to address the defects in the prior art that the heat exchange efficiency of the cooling pipe is low due to the small heat exchange area when exchanging heat, which easily causes the product body to overheat and crash.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] The utility model provides a cooling device for a dry vacuum pump, which is characterized in that the cooling device comprises a cooling tube and a fin tube, the fin tube is sleeved outside the cooling tube, the fin tube is spirally wound along the extension direction of the cooling tube and abuts against the outside of the cooling tube, a cooling medium is arranged inside the fin tube, and the cooling tube and the fin tube are both made of heat-conducting materials so that the heat in the cooling tube can be conducted to the fin tube.

[0006] Preferably, the material of the fin tube is copper.

[0007] Preferably, the cooling medium is pure water.

[0008] Preferably, the finned tube is spiral-shaped.

[0009] Preferably, there is a gap between each spiral turn of the fin tube.

[0010] Preferably, the cooling tube and the fin tube are designed as one body, and the cooling tube is communicated with the fin tube.

[0011] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0012] The positive progressive effect of the utility model is that in the cooling device of the dry vacuum pump of the utility model, after a certain volume of water flows through the cooling pipe, the heat generated by each part of the body that needs to dissipate heat is exchanged with the cooling water in the cooling pipe. Since the finned tube is installed on the outside of the cooling pipe, the contact area between the heat and the cooling water becomes larger, thereby improving the heat dissipation efficiency, enhancing the heat dissipation capacity of the body, and will not cause a crash due to heat dissipation problems under high-load conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the cooling device of the utility model.

[0014] Figure 2 It is a schematic cross-sectional structure diagram of the fin tube of the utility model installed in the high-voltage end plate.

[0015] Figure 3 The utility model is a schematic cross-sectional structure diagram of the fin tube installed in the fuel tank cover.

[0016] Figure 4 The utility model is a schematic cross-sectional structure diagram of the fin tube installed in the gear box.

[0017] Description of reference numerals:

[0018] Cooling pipe 1

[0019] Fin tube 2

[0020] High voltage end plate 3

[0021] Fuel tank cap 4

[0022] Gear Box 5 DETAILED DESCRIPTION

[0023] The present invention will be described more clearly and completely below by way of embodiments in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments.

[0024] The utility model discloses a cooling device for a dry vacuum pump, such as Figure 1-4 As shown, the cooling device includes a cooling tube 1 and a fin tube 2. The fin tube 2 is sleeved outside the cooling tube 1. The fin tube 2 is spirally wound along the extension direction of the cooling tube 1 and abuts against the outside of the cooling tube 1. A cooling medium is arranged inside the fin tube 2. The cooling tube 1 and the fin tube 2 are both made of heat-conducting materials so that the heat in the cooling tube 1 can be transferred to the fin tube 2.

[0025] Specifically, when the cooling water switch is turned on before the dry vacuum pump body is turned on, the cooling water flows through the cooling tube 1, and the heat generated by the body will exchange heat with the cooling water in the cooling tube 1 through the fin tube 2 wrapped around the outside of the cooling tube 1. Since the fin tube 2 is sleeved on the outside of the cooling tube 1, the area where the heat generated by the body contacts the cooling water is increased, which enhances the cooling effect to a certain extent and increases the heat exchange efficiency. The fin tube 2 sleeved on the outside of the cooling tube 1 can be adjusted according to actual needs and can be installed in any position as needed. The shape of the cooling tube 1 can be adjusted according to the actual cooling space required, and can be a straight tube, a U-shaped tube, etc. The number of fin tubes 2 outside the cooling tube 1 can be adjusted and set according to actual needs.

[0026] In this embodiment, the material of the fin tube 2 is copper, which has good thermal conductivity and good ductility, and is suitable for spirally winding the fin tube 2 according to the shape of the cooling tube 1. Of course, in other embodiments, the material of the fin tube 2 can be easily deformed plastic, and this arrangement method facilitates the installation of the fin tube 2 and the cooling tube 1.

[0027] In this embodiment, the cooling medium is pure water, which has good thermal conductivity and improves heat exchange efficiency. In addition, pure water in the copper fin tube 2 has stable chemical properties and is not easy to damage the fin tube 2. It also has good thermal conductivity, which improves heat dissipation and increases the life of the fin tube 2.

[0028] In this embodiment, the fin tube 2 is spiral, so that the installation of the fin tube 2 and the cooling tube 1 is simple and stable. The cooling tube 1 is connected by passing through the fin tube 2, and the inner side of the fin tube 2 is in contact with the outer periphery of the cooling tube 1, so the contact area is large and the heat exchange efficiency is high.

[0029] In this embodiment, there is a gap between each spiral of the fin tube 2. With this arrangement, the contact area between the fin tube 2 and the air is large, so that the heat dissipation effect of the fin tube 2 is better.

[0030] In an alternative embodiment, the cooling tube 1 and the fin tube 2 are designed as one body, and the cooling tube 1 is connected to the fin tube 2. Such an arrangement has a stable structure and good heat dissipation effect.

[0031] The cooling pipe 1 can be arranged in the high-pressure end plate 3 of the dry vacuum pump, so that the heat dissipation effect of the high-pressure end of the dry vacuum pump is good, so as to improve the heat dissipation effect of the body. The cooling pipe 1 can be arranged in the oil tank cover 4 of the dry vacuum pump, so that the heat dissipation effect in the oil tank cover 4 of the dry vacuum pump is good, and the oil safety is improved to improve the heat dissipation effect of the body. The cooling pipe 1 can be arranged in the gear box 5 of the dry vacuum pump, so that the heat dissipation effect in the gear box 5 of the dry vacuum pump is good, providing a good heat dissipation environment for the gear operation and improving the life.

[0032] The cooling pipe 1 and the finned tube 2 sleeved on the outside of the cooling pipe 1 can be installed separately or in combination inside the high-pressure end plate 3, the oil tank cover 4, and the gear box 5, which are important components in the vacuum dry pump body. At the same time, the cooling pipe 1 can also be installed separately in the high-pressure end plate 3. The above components dissipate heat when the dry vacuum pump body is running. The length and volume of the cooling pipe 1 and the finned tube 2 sleeved on the outside of the cooling pipe 1 can be selected according to the actual heat dissipation capacity requirements, and the position can be freely adjusted according to the installation space of the cooling pipe 1 inside the high-pressure end plate 3, the oil tank cover 4, and the gear box 5.

[0033] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A cooling device for a dry vacuum pump, Features: The cooling device includes a cooling tube and a fin tube. The fin tube is sleeved outside the cooling tube. The fin tube is spirally wound along the extension direction of the cooling tube and abuts against the outside of the cooling tube. A cooling medium is arranged inside the fin tube. The cooling tube and the fin tube are both made of heat-conducting materials so that the heat in the cooling tube can be transferred to the fin tube.

2. The cooling device for a dry vacuum pump according to claim 1, Features: The material of the fin tube is copper.

3. The cooling device for a dry vacuum pump according to claim 1, Features: The cooling medium is pure water.

4. The cooling device for a dry vacuum pump according to claim 1, Features: The fin tube is spiral-shaped.

5. The cooling device for a dry vacuum pump according to claim 4, Features: There is a gap between each spiral circle of the fin tube.

6. The cooling device for a dry vacuum pump according to claim 1, Features: The cooling tube is designed as an integral unit with the fin tube, and the cooling tube is communicated with the fin tube.

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