CN210118251U - Oil tank side-mounted rotary vane vacuum pump with heating function - Google Patents
Oil tank side-mounted rotary vane vacuum pump with heating function Download PDFInfo
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- CN210118251U CN210118251U CN201920689377.0U CN201920689377U CN210118251U CN 210118251 U CN210118251 U CN 210118251U CN 201920689377 U CN201920689377 U CN 201920689377U CN 210118251 U CN210118251 U CN 210118251U
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- vacuum pump
- rotary vane
- heating rod
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Abstract
The utility model discloses an oil tank side formula rotary vane vacuum pump provides a simple structure, and safe and reliable can guarantee the oil tank side formula rotary vane vacuum pump that has the heating function of vacuum pump normal boot under the low temperature condition, and it is great that the vacuum pump that exists has been solved and has been started the influence of ambient temperature, can't start or start technical problem such as difficulty under the low temperature condition, and it includes the pump body and locates the oil tank of pump body side be equipped with electrical heating stick and temperature sensor on the oil tank, under the oil level in the one end of electrical heating stick extended to the oil tank, the other end of electrical heating stick was connected external controller through the temperature sensor electricity, and external controller is according to temperature sensor's the motor start on the detection information control electrical heating stick and the pump body.
Description
Technical Field
The utility model relates to an oil tank side formula sliding vane rotary vacuum pump especially relates to a simple structure, oil tank side formula sliding vane rotary vacuum pump with heating function.
Background
The rotary vane vacuum pump is one of the main pumps for obtaining low and medium vacuum pumps, and mainly comprises a stator, a rotor, a rotary vane, a fixed cover, a spring and other parts, wherein the rotor is eccentrically arranged in a stator cavity, the rotary vane radially slides in a rotor groove, and when the rotor rotates, the rotary vane always slides along the inner wall of the stator under the action of centrifugal force, and air suction is realized by the volume change of a pump cavity. Rotary vane vacuum pumps are generally classified into oil-sealed pumps and dry pumps, in which the oil-sealed vacuum pumps maintain lubrication and sealing between moving parts by vacuum pumping oil. However, the viscosity of the pump oil in the oil-sealed rotary vane vacuum pump is gradually increased along with the reduction of the environmental temperature, so that the running resistance of the pump body is correspondingly increased, and therefore, a higher requirement is provided for the starting load capacity of the motor in a low-temperature environment. Normally, a vacuum pump can only be started normally at an ambient temperature above 5 ℃. Therefore, when the vacuum pump is used in a cold environment, people usually need to carry out local heating or heat preservation treatment on the space where the vacuum pump is located, time and labor are wasted, the use cost is high, and particularly, the vacuum pump is used under special conditions, such as field or outdoor temporary operation and the like, so that how to ensure the normal starting of the vacuum pump in the cold environment becomes a technical problem which people need to solve urgently.
Disclosure of Invention
The utility model mainly provides a simple structure, safe and reliable can guarantee the oil tank side formula rotary vane vacuum pump that has the heating function of vacuum pump normal start under the low temperature condition, and it is great that the vacuum pump that has solved to exist among the prior art starts to be influenced by ambient temperature, can't start or start the technical problem of difficulty etc. under the low temperature condition.
The above technical problem of the present invention can be solved by the following technical solutions: the utility model provides an oil tank side formula rotary vane vacuum pump with heating function, includes the pump body and locates the oil tank of pump body side be equipped with electrical heating rod and temperature sensor on the oil tank, under the one end of electrical heating rod extended to the oil level in the oil tank, the other end of electrical heating rod passed through the external controller of temperature sensor electricity connection, and external controller is according to the motor start on the detection information control electrical heating rod of temperature sensor and the pump body. Through set up electrical heating rod and temperature sensor on the oil tank, temperature sensor is used for detecting the pump oil temperature in the oil tank, and when the pump oil temperature was less than the setting value, temperature sensor's detection information sent to external controller, and external controller starts electrical heating rod promptly, because electrical heating rod is located under the oil liquid level, can heat the pump oil fast, when the pump oil temperature reached the setting value, the electrical heating rod was closed to the controller, starts the pump body simultaneously. Simple structure heats low temperature pump oil in real time through the electrical heating stick to through external controller automatic control, safe and reliable has guaranteed normal start and the operation of vacuum pump under the low temperature condition.
Preferably, the electric heating rod is horizontally inserted on the front side surface of the oil tank close to the bottom surface of the oil tank. Because the oil temperature rises and then goes upward, the electric heating rod is arranged at a position close to the bottom surface of the oil tank, and the uniform temperature rise of the oil temperature in the whole oil tank can be ensured.
Preferably, a positioning ring is closely sleeved outside the fixed end of the electric heating rod, and the positioning ring is screwed and fixed on the wall of the oil tank. The electric heating rod is screwed and fixed on the wall of the oil tank through the positioning ring, the fixing mode is simple and reliable, and the disassembly and the assembly are convenient.
More preferably, the middle part of the outer ring surface of the positioning ring extends outwards to form an annular positioning boss, the inner side surface of the annular positioning boss is in parallel abutting joint with the outer wall surface of the oil tank, and a sealing ring is clamped between the outer wall surface of the oil tank and the annular positioning boss. The annular positioning boss is formed on the outer annular surface of the positioning ring, and the sealing ring is clamped between the outer wall surface of the oil tank and the annular positioning boss, so that the sealing performance of the joint can be improved, and oil leakage of the oil tank is prevented.
Preferably, the temperature sensor is fixed on the wall surface of the oil tank close to the fixed end of the electric heating rod. The temperature sensor is arranged close to the fixed end of the electric heating rod, and the temperature sensor can detect the change of the oil temperature in real time, so that the starting time of the pump body can be accurately controlled, the energy consumption is saved, and the working efficiency is improved.
Preferably, a junction box is arranged above the motor, and the electric heating rod is connected to a power switch in the junction box through a lead. The electric heating rod is connected with the junction box through a wire, and the wiring arrangement is simple and reasonable.
Therefore, the utility model discloses an oil tank side formula rotary vane vacuum pump with heating function has following advantage: the electric heating rod is arranged under the oil level of the oil tank, the external control can automatically control the electric heating rod and the opening and closing of the pump body according to the oil temperature information, so that the vacuum pump can adapt to a low-temperature severe environment, the use cost is low, the efficiency is high, and the application range of the vacuum pump is enlarged.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a partial sectional view of the present invention.
The specific implementation mode is as follows:
the technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b):
as shown in figures 1 and 2, the utility model discloses an oil tank side-mounted rotary vane vacuum pump with heating function, including the pump body 1 of rotary vane vacuum pump and the oil tank 2 arranged on the side of the pump body 1, the front side of the oil tank 2 is equipped with the electric heating rod 4 and the temperature sensor 5, wherein the electric heating rod 4 is horizontally inserted in the middle of the front side of the oil tank 2 near the bottom surface of the oil tank 2, the temperature sensor 5 is located between the electric heating rod 4 and the pump body 1, and the axes of the temperature sensor 5 and the electric heating rod 4 are located at the same horizontal plane, the fixed end of the electric heating rod 4 is sleeved with the positioning ring 6, the positioning ring 6 is welded and fixed in an annular manner, so that the positioning ring 6 and the electric heating rod 4 are kept in a sealed connection, the positioning ring 6 is screwed and fixed on the front wall surface of the oil tank 2, the middle of the outer annular surface of the, the inner side surface of the annular positioning boss 7 is in parallel abutted connection with the outer wall surface of the oil tank 2, a sealing ring 8 is clamped between the outer wall surface of the oil tank 2 and the annular positioning boss 7, and the sealing ring 8 is embedded in an annular positioning groove corresponding to the inner side surface of the annular positioning boss 7. The heating end of the electric heating rod 4 extends to the position below the oil level in the oil tank 2, the junction box 9 is installed above the motor 3, the electric heating rod 4 is connected to a power switch in the junction box 9 through a wire 10, the electric heating rod 4 is electrically connected to the external controller through the temperature sensor 5, and the external controller controls the electric heating rod 4 and the motor 3 on the pump body 1 to be started and closed according to detection information of the temperature sensor 5.
The specific embodiments described herein are merely illustrative of the principles of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. The utility model provides an oil tank side formula rotary vane vacuum pump with heating function, includes the pump body (1) and locates oil tank (2) of pump body (1) side, its characterized in that: be equipped with electrical heating rod (4) and temperature sensor (5) on oil tank (2), under the one end of electrical heating rod (4) extended to the oil level in oil tank (2), the other end of electrical heating rod (4) passed through temperature sensor (5) electricity and is connected external controller, and external controller starts motor (3) on the detection information control electrical heating rod (4) and the pump body (1) according to temperature sensor (5).
2. The tank-side rotary vane vacuum pump with heating function according to claim 1, characterized in that: the electric heating rod (4) is horizontally inserted on the front side surface of the oil tank (2) close to the bottom surface of the oil tank (2).
3. The tank-side rotary vane vacuum pump with heating function according to claim 1 or 2, characterized in that: a positioning ring (6) is hermetically sleeved outside the fixed end of the electric heating rod (4), and the positioning ring (6) is screwed and fixed on the wall of the oil tank (2).
4. The tank-side rotary vane vacuum pump with heating function according to claim 3, characterized in that: the middle part of the outer ring surface of the positioning ring (6) extends outwards to form an annular positioning boss (7), the inner side surface of the annular positioning boss (7) is parallelly abutted to the outer wall surface of the oil tank (2), and a sealing ring (8) is clamped between the outer wall surface of the oil tank (2) and the annular positioning boss (7).
5. The tank-side rotary vane vacuum pump with heating function according to claim 1 or 2, characterized in that: and the temperature sensor (5) is fixed on the wall surface of the oil tank (2) close to the fixed end of the electric heating rod (4).
6. The tank-side rotary vane vacuum pump with heating function according to claim 1 or 2, characterized in that: a junction box (9) is arranged above the motor (3), and the electric heating rod (4) is connected to a power switch in the junction box (9) through a wire (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920689377.0U CN210118251U (en) | 2019-05-14 | 2019-05-14 | Oil tank side-mounted rotary vane vacuum pump with heating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920689377.0U CN210118251U (en) | 2019-05-14 | 2019-05-14 | Oil tank side-mounted rotary vane vacuum pump with heating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210118251U true CN210118251U (en) | 2020-02-28 |
Family
ID=69614047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920689377.0U Active CN210118251U (en) | 2019-05-14 | 2019-05-14 | Oil tank side-mounted rotary vane vacuum pump with heating function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210118251U (en) |
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2019
- 2019-05-14 CN CN201920689377.0U patent/CN210118251U/en active Active
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