Detachable water circulation cooling device of molecular pump

Abstract

The utility model discloses a detachable water circulation cooling device of a molecular pump, which comprises a molecular pump outer shell, sealing rubber ferrules, interlayer rubber ferrules, an outer shell sleeve, a water inlet and a water outlet, the sealing rubber ferrules are respectively arranged at the upper end and the lower end of the molecular pump outer shell, the interlayer rubber ferrules are sleeved on the molecular pump outer shell, and the outer shell sleeve is sleeved on the water inlet. The outer side of the interlayer rubber sleeve is provided with a notch used for water passing, the shell sleeve is connected to the outer portion of the molecular pump shell in a sleeved mode, the inner wall of the shell sleeve extrudes the outer side of the sealing rubber ferrule and the outer side of the interlayer rubber ferrule, and a cavity between the molecular pump shell and the shell sleeve is divided into a plurality of annular channels through the sealing rubber ferrule and the interlayer rubber ferrule. The water inlet is formed in the lower portion of the side face of the outer shell sleeve, the water outlet is formed in the upper portion of the side face of the outer shell sleeve, and the water outlet corresponds to the annular channel at the highest position. The utility model has the advantages of simple structure, convenience in use, good use effect and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of molecular pump auxiliary equipment, in particular to a detachable water circulation cooling device for a molecular pump. Background Art

[0002] Among all kinds of mechanical vacuum pumps nowadays, the internal structure of molecular pumps is particularly sophisticated and has high process requirements. Its principle is to transfer momentum to gas molecules through the surface of a high-speed moving rigid body, so that the gas molecules produce a directional flow in the direction of movement of the rigid body surface, thereby achieving the purpose of pumping. The existing molecular pumps are equipped with a cooling structure to provide heat dissipation for the interior of the molecular pump. However, most of the existing cooling mechanisms are arranged at the bottom of the molecular pump, which has a poor cooling effect on the upper shell. Utility Model Content

[0003] The purpose of the utility model is to provide a detachable water circulation cooling device of a molecular pump to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detachable water circulation cooling device for a molecular pump, comprising: a molecular pump outer shell, a sealing rubber ring, a barrier rubber ring, an outer shell, a water inlet, and a drain outlet, wherein the molecular pump outer shell is the upper part of the outer shell of the molecular pump, the sealing rubber ring is an annular elastic ring, the inner diameter of the sealing rubber ring is smaller than the outer diameter of the molecular pump outer shell, the sealing rubber ring is sleeved on the molecular pump outer shell, and sealing rubber rings are respectively provided at the upper and lower ends of the molecular pump outer shell, the barrier rubber ring is an annular elastic ring, the inner diameter of the barrier rubber ring is smaller than the outer diameter of the molecular pump outer shell, the barrier rubber ring is sleeved on the molecular pump outer shell. On the sub-pump outer shell, the interlayer rubber ring is arranged between the two sealing rubber rings, and at least two interlayer rubber rings are evenly arranged. A gap for water passage is opened on the outside of the interlayer rubber sleeve. The outer shell is sleeved on the outside of the molecular pump outer shell, and the inner wall of the outer shell squeezes the outer sides of the sealing rubber ring and the interlayer rubber ring. The sealing rubber ring and the interlayer rubber ring divide the cavity between the molecular pump outer shell and the outer shell into multiple annular channels. The water inlet is arranged at the lower side of the outer shell, and the water inlet corresponds to the lowest position of the annular channel. The drain is arranged at the upper side of the outer shell, and the drain corresponds to the highest position of the annular channel.

[0005] Furthermore, handles for plugging and unplugging are symmetrically provided on both sides of the outer shell.

[0006] Furthermore, the lower portion of the outer shell is an arc-shaped trumpet-shaped opening.

[0007] Furthermore, the inner sides of the cross sections of the sealing rubber ring and the interlayer rubber ring are flat and rough surfaces, while the outer sides of the cross sections are arc-shaped smooth surfaces, and the outer diameter of the sealing rubber ring is larger than that of the interlayer rubber ring.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] 1. The detachable water circulation cooling device of the molecular pump of the utility model is formed by sleeve-fitting the outer shell on the upper part of the molecular pump outer shell, and using a sealing rubber ring and an interlayer rubber ring to divide the cavity between the molecular pump outer shell and the outer shell into multiple annular channels. Since the outer side of the interlayer rubber sleeve is provided with a gap for passing water, the multiple annular channels can be connected, and cooling water can pass through to cool the upper part of the molecular pump.

[0010] 2. The detachable water circulation cooling device of the molecular pump of the present invention can remove all cooling components, and the disassembly and installation are very convenient, and it is easy to assemble and use.

[0011] The utility model has the advantages of simple structure, convenient use, good use effect, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the interlayer rubber ring of the utility model;

[0014] In the figure: 1-molecular pump outer shell; 2-sealing rubber ring; 3-interlayer rubber ring; 4-outer shell; 5-water inlet; 6-drain outlet; 7-gap; 8-handle. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] See also Figure 1 、 2The utility model provides a detachable water circulation cooling device for a molecular pump, comprising: a molecular pump outer shell 1, a sealing rubber ring 2, a barrier rubber ring 3, an outer shell 4, a water inlet 5, and a drain port 6. The molecular pump outer shell 1 is the upper part of the outer shell of the molecular pump, the sealing rubber ring 2 is an annular elastic ring, the inner diameter of the sealing rubber ring 2 is smaller than the outer diameter of the molecular pump outer shell 1, the sealing rubber ring 2 is sleeved on the molecular pump outer shell 1, and the sealing rubber ring 2 is respectively provided at the upper and lower ends of the molecular pump outer shell 1, the barrier rubber ring 3 is an annular elastic ring, the inner diameter of the barrier rubber ring 3 is smaller than the outer diameter of the molecular pump outer shell 1, and the barrier rubber ring 3 is sleeved on the molecular pump outer shell 1. The interlayer rubber ring 3 is arranged between the two sealing rubber rings 2, and at least two interlayer rubber rings 3 are evenly arranged. A gap 7 for water flow is opened on the outside of the interlayer rubber ring 3. The outer shell 4 is sleeved on the outside of the molecular pump outer shell 1, and the inner wall of the outer shell 4 squeezes the outer sides of the sealing rubber ring 2 and the interlayer rubber ring 3. The sealing rubber ring 2 and the interlayer rubber ring 3 divide the cavity between the molecular pump outer shell 1 and the outer shell 4 into multiple annular channels. The water inlet 5 is arranged at the lower side of the outer shell 4, and the water inlet 5 corresponds to the lowest position of the annular channel. The drain port 6 is arranged at the upper side of the outer shell 4, and the drain port 6 corresponds to the highest position of the annular channel.

[0017] By sleeve-fitting the outer shell 4 onto the upper portion of the molecular pump outer shell 1, and using the sealing rubber ring 2 and the interlayer rubber ring 3 to divide the cavity between the molecular pump outer shell 1 and the outer shell 4 into multiple annular channels, and because the interlayer rubber ring 3 has a notch 7 for water flow on the outside, the multiple annular channels can be connected, and cooling water can flow through to cool the upper portion of the molecular pump. Specifically, the sealing rubber ring 2 and the interlayer rubber ring 3 are sleeved onto the molecular pump outer shell 1 one by one according to their positions, and then the outer shell 4 is sleeved onto the molecular pump outer shell 1. At this time, the inner wall of the outer shell 4 squeezes the outer sides of the sealing rubber ring 2 and the interlayer rubber ring 3, thereby achieving the sealing and separation of the cavity. Finally, water is injected from the water inlet 5 and discharged from the drain 6, and the cyclic cooling work can be carried out.

[0018] Furthermore, handles 8 for plugging and unplugging are symmetrically provided on both sides of the outer shell 4.

[0019] By symmetrically arranging the handles 8 on both sides of the outer shell 4 , it is convenient for the operator to control the outer shell 4 and better perform the plugging and unplugging operations on the outer shell 4 .

[0020] Furthermore, the lower portion of the outer shell 4 is an arc-shaped trumpet-shaped opening.

[0021] Since the lower part of the outer shell 4 is an arc-shaped trumpet-shaped opening, its diameter is gradually reduced.

[0022] Furthermore, the inner sides of the cross sections of the sealing rubber ring 2 and the interlayer rubber ring 3 are flat and rough surfaces, while the outer sides of the cross sections are arc-shaped smooth surfaces, and the outer diameter of the sealing rubber ring 2 is larger than that of the interlayer rubber ring 3.

[0023] Since the inner sides of the cross-sections of the sealing rubber ring 2 and the interlayer rubber ring 3 are flat and rough surfaces, while the outer sides of the cross-sections are arc-shaped and smooth surfaces, the friction force on the inner sides is greater than that on the outer sides. When the outer shell 4 is disassembled and installed, the sealing rubber ring 2 and the interlayer rubber ring 3 are not easy to slide. The outer diameter of the sealing rubber ring 2 is slightly larger than that of the interlayer rubber ring 3, so that the extrusion force of the sealing rubber ring 2 is greater, thereby ensuring the sealing performance.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable water circulation cooling device for a molecular pump, characterized in that: include: A molecular pump outer shell (1), a sealing rubber ring (2), an interlayer rubber ring (3), an outer shell (4), a water inlet (5), and a drain outlet (6); the molecular pump outer shell (1) is the upper part of the outer shell of the molecular pump; the sealing rubber ring (2) is an annular elastic ring; the inner diameter of the sealing rubber ring (2) is smaller than the outer diameter of the molecular pump outer shell (1); the sealing rubber ring (2) is sleeved on the molecular pump outer shell (1); and the sealing rubber ring (2) is respectively provided at the upper and lower ends of the molecular pump outer shell (1); the interlayer rubber ring (3) is an annular elastic ring; the inner diameter of the interlayer rubber ring (3) is smaller than the outer diameter of the molecular pump outer shell (1); the interlayer rubber ring (3) is sleeved on the molecular pump outer shell (1); the interlayer rubber ring (3) is provided at two sealing The outer shell (4) is sleeved on the outside of the molecular pump outer shell (1), and the inner wall of the outer shell (4) squeezes the outer sides of the sealing rubber ring (2) and the interlayer rubber ring (3). The sealing rubber ring (2) and the interlayer rubber ring (3) divide the cavity between the molecular pump outer shell (1) and the outer shell (4) into a plurality of annular channels. The water inlet (5) is arranged at the lower side of the outer shell (4), and the water inlet (5) corresponds to the lowest position of the annular channel. The drain port (6) is arranged at the upper side of the outer shell (4), and the drain port (6) corresponds to the highest position of the annular channel.

2. The detachable water circulation cooling device for a molecular pump according to claim 1, characterized in that: Handles (8) for plugging and unplugging are symmetrically arranged on both sides of the outer shell (4).

3. The detachable water circulation cooling device for a molecular pump according to claim 1, characterized in that: The lower part of the outer shell (4) is an arc-shaped trumpet-shaped opening.

4. The detachable water circulation cooling device for a molecular pump according to claim 1, characterized in that: The inner sides of the cross sections of the sealing rubber ring (2) and the interlayer rubber ring (3) are flat and rough surfaces, while the outer sides of the cross sections are arc-shaped and smooth surfaces, and the outer diameter of the sealing rubber ring (2) is larger than that of the interlayer rubber ring (3).

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