A rotary vane vacuum pump

Abstract

The utility model discloses a rotary vane vacuum pump, including a power mechanism, a heating mechanism and a heat preservation mechanism, wherein the power mechanism includes a vacuum pump body, an oil tank disposed on one side of the vacuum pump body, an oil pipeline connected between the vacuum pump body and the oil tank, and a heating mechanism, wherein the heating mechanism includes a plurality of heat conducting pipes penetrating the oil tank, electric heating wires installed inside the heat conducting pipes, a mobile power source disposed on one side of the oil tank, and a plurality of sockets electrically connected to the mobile power source, wherein the plurality of electric heating wires are respectively wired to the plurality of sockets. In the utility model, when the vacuum pump body is in a low temperature environment, the electric heating wire is turned on, and while the electric heating wire heats the pump oil in the oil tank, the heat generated by the electric heating wire will be transferred from the heat conducting pipe to the inside of the heat collecting box, and then enter the inside of the protective tube, thereby reducing the heat loss during oil transportation in the oil pipeline, and ensuring that the vacuum pump body can work with low power consumption.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary vane vacuum pumps, in particular to a rotary vane vacuum pump. Background Art

[0002] Oil-sealed vacuum pumps use vacuum pump oil to maintain lubrication and sealing between moving parts. However, as the ambient temperature decreases, the viscosity of the pump oil in the oil-sealed rotary vane vacuum pump gradually increases, causing the running resistance of the pump body to increase accordingly. Therefore, in low-temperature environments, higher requirements are placed on the starting load capacity of the motor. Normally, the vacuum pump can only be started normally at an ambient temperature above 5°C.

[0003] The use of vacuum pumps is always in conjunction with oil tanks. In low temperature environments, when the oil tank transports hot oil to the vacuum pump through a hose, the oil in the hose is very easy to lose temperature due to the lack of protection of the hose, causing the hot oil to become cold oil, which still cannot reduce the power consumption of the vacuum pump. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted in this utility model is:

[0006] A rotary vane vacuum pump comprises a power mechanism, a heating mechanism and a heat preservation mechanism, wherein the power mechanism comprises a vacuum pump body, an oil tank arranged on one side of the vacuum pump body, and an oil pipeline connected between the vacuum pump body and the oil tank; a heating mechanism, wherein the heating mechanism comprises a plurality of heat-conducting tubes passing through the oil tank, electric heating wires installed inside the heat-conducting tubes, a mobile power supply arranged on one side of the oil tank, and a plurality of sockets electrically connected to the mobile power supply, wherein the plurality of heating wires are respectively connected to the plurality of sockets by wires; and a heat preservation mechanism, wherein the heat preservation mechanism comprises a heat collecting box connected between the plurality of heat-conducting tubes, a protective tube connected to and communicated with the heat collecting box, and the oil pipeline passes through the protective tube.

[0007] By adopting the above technical solution, when the vacuum pump body is in a low-temperature environment, the heating wire is turned on. While the heating wire heats the pump oil in the oil tank, the heat generated by it will be transmitted from the heat transfer pipe to the inside of the thermal collector box, and then enter the inside of the protective tube, thereby reducing the heat loss during oil transportation in the oil pipeline and ensuring that the vacuum pump body can operate with low power consumption.

[0008] In a preferred example, the utility model can be further configured as follows: a plurality of heat-conducting pipes are arranged in a triangle, and one end of the heat-conducting pipe extends into the interior of the heat collecting box.

[0009] In a preferred example, the utility model can be further configured as follows: a sealing ring is sleeved on the outer side of the oil delivery pipe, and the sealing ring is interference-fitted with the bottom end of the protection pipe.

[0010] In a preferred example, the utility model can be further configured as follows: two handles are installed on one side of the thermal collector box, and the two handles are of different lengths.

[0011] In a preferred example, the utility model can be further configured as follows: a plurality of clamps are sleeved on the outer side of the protection tube, the plurality of clamps are arranged in a row at equal intervals, and the clamps are fixedly connected to the outer wall of the heat collecting box.

[0012] In a preferred example, the utility model can be further configured as follows: a fuel tank cover is movably connected to the top of the fuel tank.

[0013] In a preferred example, the utility model can be further configured as follows: an L-shaped base is connected between the vacuum pump body and the oil tank, the mobile power supply is installed on one side of the L-shaped base plate, and the socket is installed on the other side of the L-shaped base plate.

[0014] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0015] In the utility model, when the vacuum pump body is in a low-temperature environment, the electric heating wire is turned on. While the electric heating wire heats the pump oil in the oil tank, the heat generated by the electric heating wire is transmitted from the heat conduction pipe to the inside of the heat collecting box, and then enters the inside of the protective tube, thereby reducing the heat loss during oil transportation in the oil pipeline and ensuring that the vacuum pump body can operate with low power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of a molding module of the power mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the heating mechanism of the utility model;

[0019] Figure 4 This is a schematic diagram of the disassembly of the heat collecting box and the protection tube of the utility model;

[0020] Figure 5 This is a schematic diagram of the installation positions of the sealing ring, handle and clamp of the utility model.

[0021] Reference numerals:

[0022] 100, power mechanism; 110, vacuum pump body; 120, oil tank; 130, oil pipeline;

[0023] 200, heating mechanism; 210, heat pipe; 220, heating wire; 230, mobile power source; 240, socket;

[0024] 300, heat preservation mechanism; 310, heat collecting box; 320, protection tube;

[0025] 400, sealing ring;

[0026] 500, handle;

[0027] 600, clamp;

[0028] 700. Fuel tank cap. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0030] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0031] A rotary vane vacuum pump provided by some embodiments of the utility model is described below in conjunction with the accompanying drawings. Embodiment 1

[0032] Combination Figure 1-5 As shown, the utility model provides a rotary vane vacuum pump, comprising a power mechanism 100, a heating mechanism 200 and a heat preservation mechanism 300, wherein the power mechanism 100 comprises a vacuum pump body 110, an oil tank 120 disposed on one side of the vacuum pump body 110, and an oil delivery pipe 130 connected between the vacuum pump body 110 and the oil tank 120;

[0033] A heating mechanism 200, the heating mechanism 200 comprises a plurality of heat conducting pipes 210 penetrating the oil tank 120, a heating wire 220 installed inside the heat conducting pipe 210, a mobile power source 230 provided at one side of the oil tank 120, and a plurality of sockets 240 electrically connected to the mobile power source 230, wherein the plurality of heating wires 220 are respectively connected to the plurality of sockets 240 by wires;

[0034] The heat preservation mechanism 300 includes a heat collecting box 310 connected between a plurality of heat conducting pipes 210 , and a protection pipe 320 connected and communicated with the heat collecting box 310 , and the oil delivery pipe 130 passes through the protection pipe 320 .

[0035] Furthermore, a plurality of heat conducting pipes 210 are arranged in a triangle, and one end of each heat conducting pipe 210 extends into the interior of the heat collecting box 310. The layout design and size design of the heat conducting pipes 210 ensure that the heat collecting box 310 can be securely installed.

[0036] Furthermore, a sealing ring 400 is sleeved on the outer side of the oil delivery pipe 130 , and the sealing ring 400 is interference-fitted with the bottom end of the protection tube 320 . The provision of the sealing ring 400 can reduce the temperature loss in the protection tube 320 .

[0037] Furthermore, a fuel tank cover 700 is movably connected to the top of the fuel tank 120, and a worker can open the fuel tank cover 700 to conveniently fill the fuel tank 120, thereby improving the convenience of filling the fuel tank.

[0038] Furthermore, an L-shaped base is connected between the vacuum pump body 110 and the oil tank 120, the mobile power supply 230 is installed on one side of the L-shaped bottom plate, and the socket 240 is installed on the other side of the L-shaped bottom plate. The provision of the L-shaped bottom plate can, on the one hand, improve the connection firmness between the vacuum pump body 110 and the oil tank 120, and on the other hand, provide installation conditions for the mobile power supply 230 and the socket 240. Embodiment 2

[0039] Combination Figure 1 and Figure 5 As shown, based on the first embodiment, two handles 500 are installed on one side of the heat collecting box 310. The two handles 500 are of different lengths. The handles 500 are provided to facilitate the staff to remove the heat collecting box 310 in a high temperature environment. Embodiment 3

[0040] Combination Figure 1 and Figure 5 As shown, in the above embodiment, a plurality of clamps 600 are sleeved on the outer side of the protection tube 320, and the plurality of clamps 600 are arranged in a row at equal intervals, and the clamps 600 are fixedly connected to the outer wall of the thermal collector box 310. The provision of the clamps 600 can improve the connection firmness between the protection tube 320 and the thermal collector box 310.

[0041] The working principle and use process of the utility model: when the device is put into actual use, once the vacuum pump body 110 is in a low temperature environment, the staff can connect the heating wire 220 to the socket 240, and then multiple heating wires 220 cooperate to evenly heat the pump oil in the oil tank 120, and then the oil pipe 130 injects the hot oil into the vacuum pump body 110. During this process, the heat generated by the heating wire 220 will be transmitted from the heat pipe 210 to the inside of the heat collecting box 310, and then enter the inside of the protective tube 320, thereby reducing the heat loss of the oil pipe 130 during oil transportation, and ensuring that the vacuum pump body 110 can work with low power consumption.

[0042] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A rotary vane vacuum pump, characterized in that: include: A power mechanism (100), the power mechanism (100) comprising a vacuum pump body (110), an oil tank (120) provided on one side of the vacuum pump body (110), and an oil delivery pipe (130) connected between the vacuum pump body (110) and the oil tank (120); A heating mechanism (200), the heating mechanism (200) comprising a plurality of heat conducting pipes (210) penetrating the oil tank (120), a heating wire (220) installed inside the heat conducting pipe (210), a mobile power source (230) disposed on one side of the oil tank (120), and a plurality of sockets (240) electrically connected to the mobile power source (230), wherein the plurality of heating wires (220) are respectively connected to the plurality of sockets (240) by wires; A heat preservation mechanism (300) comprising a heat collection box (310) connected between a plurality of heat conduction pipes (210), a protection pipe (320) connected to and in communication with the heat collection box (310), and the oil delivery pipe (130) passing through the protection pipe (320).

2. A rotary vane vacuum pump according to claim 1, characterized in that: A plurality of heat conducting pipes (210) are arranged in a triangle, and one end of the heat conducting pipe (210) extends into the interior of the heat collecting box (310).

3. A rotary vane vacuum pump according to claim 1, characterized in that: A sealing ring (400) is sleeved on the outer side of the oil delivery pipe (130), and the sealing ring (400) is interference-fitted with the bottom end of the protection pipe (320).

4. A rotary vane vacuum pump according to claim 1, characterized in that: Two handles (500) are installed on one side of the heat collecting box (310), and the two handles (500) are of different lengths.

5. A rotary vane vacuum pump according to claim 1, characterized in that: A plurality of clamps (600) are sleeved on the outside of the protection tube (320), the plurality of clamps (600) are arranged in a row at equal intervals, and the clamps (600) are fixedly connected to the outer wall of the heat collecting box (310).

6. A rotary vane vacuum pump according to claim 1, characterized in that: The top of the oil tank (120) is movably connected to an oil tank cover (700).

7. A rotary vane vacuum pump according to claim 1, characterized in that: An L-shaped base is connected between the vacuum pump body (110) and the oil tank (120), the mobile power supply (230) is installed on one side of the L-shaped base, and the socket (240) is installed on the other side of the L-shaped base.

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