Hasp type heating base of high-vacuum oil diffusion pump

Abstract

The utility model discloses a hasp type heating base of a high-vacuum oil diffusion pump, which comprises a metal shell, a furnace bottom is arranged in the metal shell, a central support is welded and fixed at the central position of the metal shell and the furnace bottom, a heat-resistant insulating plate is arranged at the upper part of the furnace bottom, and a high-temperature heat-resistant ceramic plate is arranged at the upper part of the heat-resistant insulating plate. According to the high-vacuum oil diffusion pump, the heating base is tightly attached to the bottom of the pump body of the high-vacuum oil diffusion pump, oil working liquid in the pump body of the high-vacuum oil diffusion pump can be easily heated, the total electricity consumption is greatly reduced, and the effects of environmental protection and energy conservation are achieved; the high-quality nichrome heating wire is good in quality, long in service life and easy to replace and maintain; the heating base and the pump body are assembled and connected in a hasp mode, operation is easy, and disassembly and maintenance are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of high vacuum oil diffusion pumps, in particular to a buckle-type heating base for a high vacuum oil diffusion pump. Background Art

[0002] At present, many domestic high vacuum oil diffusion pumps and booster pumps need to heat the oil in their cavities to a certain temperature to maintain their normal operation. Most existing diffusion pumps use electric heating plates for heating, relying on close contact heat conduction. However, in actual application, there are the following defects in heating the oil through electric heating plates: (1) Since the electric heating plate itself is relatively heavy, when the temperature of the heating plate reaches a certain level during the power-on heating process, it will soften, and some parts will first separate from the pump bottom, seriously affecting the heat transfer effect of the electric heating plate. At the same time, the body temperature will become higher and higher. Once separated, the life of the heating plate will end; (2) The heating base and the pump body are assembled with bolted connectors, which is relatively cumbersome to install and the subsequent inspection and maintenance operations are also relatively difficult. In view of this, in-depth research on the above problems led to the creation of this case. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a snap-on heating base for a high vacuum oil diffusion pump, which solves the problems raised in the background art.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high vacuum oil diffusion pump snap-on heating base, comprising a metal shell, a furnace bottom is arranged in the metal shell, a center support is welded and fixed to the center of the metal shell and the furnace bottom, a heat-resistant insulating plate is installed on the upper part of the furnace bottom, a high-temperature heat-resistant ceramic disk is arranged on the upper part of the heat-resistant insulating plate, a groove is provided at the lower part of the high-temperature heat-resistant ceramic disk, a high-temperature insulating ceramic bead is arranged in the groove, a furnace plate groove is provided on the top of the high-temperature heat-resistant ceramic disk, a coil spring-shaped nickel-chromium alloy heating wire is arranged in the furnace plate groove, the straight parts at both ends of the nickel-chromium alloy heating wire pass through the high-temperature insulating ceramic bead and are connected to the terminal, quick-connect buckles are provided at three equal parts of the outer wall of the metal shell along the circumference, and the quick-connect buckles are connected to the hooks at the lower part of the outer wall of the pump body.

[0005] A wiring bend plate is welded to one side of the metal shell, and a wiring port is opened on the wiring bend plate. The outside of the wiring bend plate is connected to a wiring flip box, and a wiring board is assembled and connected at the wiring port. The terminal passes through the high-temperature resistant insulating ceramic terminal and is assembled on the terminal board. One end of the terminal is connected to a neutral wire connection plate.

[0006] The above-mentioned heat-resistant insulating plate is a three-layer heat-resistant insulating plate, and the high-temperature heat-resistant ceramic disk is a three-disc high-temperature heat-resistant ceramic disk.

[0007] An anti-electricity warning sign is provided on the outside of the metal shell.

[0008] A handle is provided on the outside of the metal shell for conveniently lifting the heating base.

[0009] The above-mentioned central support and the surrounding areas are sealed and smoothed with insulating cement.

[0010] The utility model provides a snap-on heating base for a high vacuum oil diffusion pump. It has the following beneficial effects: the snap-on heating base fits snugly to the bottom of the pump body, facilitating heating of the oil working fluid inside the pump body, significantly reducing overall power consumption and contributing to environmental protection and energy conservation. The high-quality nickel-chromium alloy heating wire offers excellent quality, a long service life, and is easy to replace and maintain. The snap-on assembly connection between the heating base and the pump body is simple to operate and facilitates disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic top view of the structure of a snap-on heating base of a high vacuum oil diffusion pump described in the present invention.

[0012] Figure 2 This is a schematic diagram of the main cross-sectional structure of a snap-on heating base of a high vacuum oil diffusion pump described in the utility model.

[0013] In the figure: 1. Metal shell; 2. Furnace bottom; 3. Center support; 4. Heat-resistant insulating plate; 5. High-temperature heat-resistant ceramic disk; 6. High-temperature resistant insulating ceramic beads; 7. Nickel-chromium alloy heating wire; 8. Terminal block; 9. Quick-connect buckle; 10. Terminal bending plate; 11. Terminal flip box; 12. Terminal board; 13. High-temperature resistant insulating ceramic terminal; 14. Neutral wire connection board; 15. Anti-electric warning sign; 16. Handle. DETAILED DESCRIPTION

[0014] 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.

[0015] Example: In conjunction with the specification Figure 1-2It can be seen that the present application specifically designs a snap-on heating base for a high vacuum oil diffusion pump, comprising a metal shell 1, a furnace bottom 2 being provided in the metal shell 1, a center support 3 being welded and fixed to the center of the metal shell and the furnace bottom 2, a heat-resistant insulating plate 4 being installed on the upper part of the furnace bottom 2, a high-temperature heat-resistant ceramic disc 5 being provided on the upper part of the heat-resistant insulating plate 4, a groove being provided at the lower part of the high-temperature heat-resistant ceramic disc 5, a high-temperature insulating ceramic bead 6 being provided in the groove, a furnace disc groove being provided on the top of the high-temperature heat-resistant ceramic disc 5, a coil spring-shaped nickel-chromium alloy heating wire 7 being provided in the furnace disc groove, and the straight sections at both ends of the nickel-chromium alloy heating wire 7 passing through The high-temperature resistant insulating ceramic beads 6 are connected to the terminal 8, and quick-connect buckles 9 are provided at three equal parts along the circumference of the outer wall of the metal shell. The quick-connect buckles 9 are connected to the hooks at the lower part of the outer wall of the pump body, which is convenient for hanging the heating base; the heating base is tightly attached to the bottom of the pump body of the high vacuum oil diffusion pump, which is easy to heat the oil working fluid inside the pump body of the high vacuum oil diffusion pump, greatly reducing the total power consumption and achieving the effect of environmental protection and energy saving; the high-quality nickel-chromium alloy heating wire 7 is of good quality, long service life, and easy to replace and maintain; the heating base and the pump body are connected by a buckle-type assembly, which is simple to operate and easy to disassemble and maintain.

[0016] During the specific implementation process, as a preferred setting, a wiring bend plate 10 is welded on one side of the above-mentioned metal shell, a wiring port is opened on the wiring bend plate 10, the outside of the wiring bend plate 10 is connected to a wiring flip box 11, and a wiring board 12 is assembled and connected at the wiring port position. The terminal 8 passes through the high-temperature resistant insulating ceramic terminal 13 and is assembled on the terminal board 12, and one end of the terminal 8 is connected to a neutral wire connection plate 14.

[0017] In the specific implementation process, as a preferred setting, the above-mentioned heat-resistant insulation board 4 is a three-layer heat-resistant insulation board 4, and the high-temperature heat-resistant ceramic disk 5 is a three-disc high-temperature heat-resistant ceramic disk 5.

[0018] In the specific implementation process, as a preferred setting, an anti-electricity warning sign 15 is provided on the outside of the above-mentioned metal shell.

[0019] In the specific implementation process, as a preferred setting, a handle 16 for conveniently lifting the heating base is provided on the outside of the above-mentioned metal shell.

[0020] In the specific implementation process, as a preferred setting, the above-mentioned central support 3 and the surrounding areas are sealed and smoothed with insulating cement.

[0021] 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 snap-on heating base for a high vacuum oil diffusion pump, comprising a metal housing, characterized in that: A furnace bottom is provided in the metal shell, and a central support is welded and fixed to the center of the metal shell and the furnace bottom. A heat-resistant insulating plate is installed on the upper part of the furnace bottom, and a high-temperature heat-resistant ceramic disk is provided on the upper part of the heat-resistant insulating plate. A groove is provided at the lower part of the high-temperature heat-resistant ceramic disk, and a high-temperature resistant insulating ceramic bead is provided in the groove. A furnace plate groove is provided on the top of the high-temperature heat-resistant ceramic disk, and a coil spring-shaped nickel-chromium alloy heating wire is provided in the furnace plate groove. The straight parts at both ends of the nickel-chromium alloy heating wire pass through the high-temperature insulating ceramic bead and are connected to the terminal. Quick-connect buckles are provided at three equal parts of the outer wall of the metal shell along the circumference, and the quick-connect buckles are connected to the hooks at the lower part of the outer wall of the pump body.

2. The snap-on heating base for a high vacuum oil diffusion pump according to claim 1, characterized in that: A wiring bend plate is welded to one side of the metal shell, a wiring port is opened on the wiring bend plate, a wiring flip box is connected to the outside of the wiring bend plate, a wiring board is assembled and connected at the wiring port, the terminal passes through the high-temperature resistant insulating ceramic terminal and is assembled on the terminal board, and one end of the terminal is connected to the neutral wire connection plate.

3. The snap-on heating base of a high vacuum oil diffusion pump according to claim 1, characterized in that: The heat-resistant insulating plate is a three-layer heat-resistant insulating plate, and the high-temperature heat-resistant ceramic disk is a three-disc high-temperature heat-resistant ceramic disk.

4. The snap-on heating base for a high vacuum oil diffusion pump according to claim 1, characterized in that: An anti-electricity warning sign is arranged on the outside of the metal shell.

5. The snap-on heating base for a high vacuum oil diffusion pump according to claim 1, characterized in that: A handle is provided on the outside of the metal shell for conveniently lifting the heating base.

6. The snap-on heating base for a high vacuum oil diffusion pump according to claim 1, characterized in that: The central support and the surrounding areas are sealed and smoothed with insulating cement.

Images