CN211013164U - Liquid level detection device for liquid level of oil pool - Google Patents
Liquid level detection device for liquid level of oil pool Download PDFInfo
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- CN211013164U CN211013164U CN201922089342.6U CN201922089342U CN211013164U CN 211013164 U CN211013164 U CN 211013164U CN 201922089342 U CN201922089342 U CN 201922089342U CN 211013164 U CN211013164 U CN 211013164U
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Abstract
The utility model discloses a liquid level detection device for the liquid level of an oil pool, which comprises an oil pool, wherein the oil pool is provided with a containing cavity, a tuning fork liquid level sensor is arranged at the upper end of the containing cavity of the oil pool, the oil pool is externally connected with an oil inlet pipe, a solenoid valve is arranged on the oil inlet pipe, the other end of the oil inlet pipe is connected with an oil tank, and a pump is arranged on the oil inlet pipe; and a secondary liquid level detection mechanism is also arranged in the oil pool. This liquid level detection device of oil bath liquid level has better detecting the liquid level, and the accuracy is high, simple structure, reliable and stable's advantage.
Description
Technical Field
The utility model relates to an oil bath technical field especially relates to a liquid level detection device for oil bath liquid level.
Background
In industrial processes, it is often necessary to measure and control the oil level. Generally, oil level is measured, a liquid level meter is adopted, and when the liquid level reaches a liquid level meter, oil feeding is stopped; the direct level gauge that detects, when the level gauge goes wrong, can't in time discover, lead to the oil leak phenomenon to appear, be difficult to clear up, cause the waste.
SUMMERY OF THE UTILITY MODEL
To the deficiency of the prior art, the technical problem to be solved by the present patent application is: how to provide a better to the liquid level detect, the accuracy is high, simple structure, reliable and stable is used for the liquid level detection device of oil bath liquid level.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a liquid level detection device for the liquid level of an oil pool comprises the oil pool, wherein the oil pool is provided with an accommodating cavity, a tuning fork liquid level sensor is installed at the upper end of the accommodating cavity of the oil pool, the oil pool is outwards connected with an oil inlet pipe, a solenoid valve is installed on the oil inlet pipe, the other end of the oil inlet pipe is connected with an oil tank, and a pump is installed on the oil inlet pipe; and a secondary liquid level detection mechanism is also arranged in the oil pool.
Therefore, the oil inlet pipe is connected with the oil tank, the electromagnetic valve is opened under the action of the pump, oil is introduced into the accommodating cavity of the oil pool through the oil inlet pipe, when the liquid level of the oil is in contact with the tuning fork liquid level sensor, the tuning fork liquid level sensor generates signal change, the tuning fork liquid level sensor is connected with the P L C controller, and after the P L C controller receives the signal change, the electromagnetic valve and the pump are closed.
Further, secondary liquid level detection mechanism includes the floater, the oil bath upper end is rotated and is installed the support, it installs the pulley to rotate on the support, the floater is connected with the stay cord, and the stay cord is located the one end fixed mounting in the oil bath outside has the heavy object, photoelectric switch is installed in the oil bath outside, the oil bath outside still is provided with the guiding mechanism who is used for leading the heavy object.
When the oil level rises, the floating ball rises along with the oil level, the pull rope is in a stretching state under the action of the weight, and after the photoelectric switch detects the weight and proves that the oil level reaches a high position, the electromagnetic valve and the pump are closed.
Be provided with secondary liquid level detection mechanism, supplementary tuning fork level sensor, after photoelectric switch or tuning fork level sensor detected the liquid level, then closed solenoid valve and pump, avoid both to interfere.
Further, guiding mechanism includes fixed mounting and is in two deflectors in the oil bath outside form the guide slot that is used for leading the heavy object between two deflectors, the vertical spout that is provided with on the deflector, fixed mounting on the heavy object with spout sliding fit's slider, photoelectric switch includes infra-red transmitter and infrared receiver, infra-red transmitter fixed mounting is in between the guide slot, infrared receiver fixed mounting is on the mounting panel, the mounting panel with deflector fixed connection, infra-red transmitter and infrared receiver are just to setting up, distance between infra-red transmitter and the infrared receiver is greater than the diameter of heavy object place circle.
Like this, utilize the guide slot to lead the stay cord, the oil bath sets up indoor, does not have the wind to blow, so under the heavy object effect, the stay cord can keep vertical state. In order to better guarantee the movement of the heavy object, the sliding block is arranged on the heavy object and matched in the sliding groove, the heavy object is prevented from deviating, the monitoring reliability is improved, the heavy object falls between the infrared transmitter and the infrared receiver, the infrared receiver cannot receive signals of the infrared transmitter, the fact that the liquid level of the oil reaches the designated height is proved, and then the electromagnetic valve and the pump are closed.
Further, the floating ball is made of foam materials. The density of the floating ball is less than that of the oil, the floating ball floats on the oil surface, the liquid level of the oil rises, and the floating ball rises accordingly.
Further, the weight is a plumb bob. The pull rope can be better pulled, so that the pull rope keeps certain tension. Specifically, the weight of the plumb bob is smaller than the gravity of the floating ball, and the plumb bob can pull the pull rope. Before installation and debugging, a floating ball and a plumb can be selected according to actual conditions to perform tests, and proper weight is selected.
And further, the liquid level monitoring device also comprises a P L C controller, wherein the tuning fork liquid level sensor, the photoelectric sensor, the electromagnetic valve and the pump are electrically connected with the P L C controller, and the tuning fork liquid level sensor and the photoelectric sensor form a secondary fuse with each other, so that the reliability can be improved.
To sum up, this liquid level detection device of oil bath liquid level has better detecting the liquid level, and the accuracy is high, simple structure, reliable and stable advantage.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive work, and wherein:
fig. 1 is the utility model discloses a structural schematic diagram of a liquid level detection device for oil bath liquid level.
Fig. 2 is a left side view of the oil sump of fig. 1, wherein a is the wiring for the infrared transmitter and b is the wiring for the infrared receiver.
Fig. 3 is a top view of fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
With reference to figures 1-3 of the drawings,
a liquid level detection device for the liquid level of an oil pool comprises the oil pool 1, wherein the oil pool 1 is provided with an accommodating cavity, a tuning fork liquid level sensor 2 is installed at the upper end of the accommodating cavity of the oil pool 1, the oil pool 1 is outwards connected with an oil inlet pipe 3, a solenoid valve 4 is installed on the oil inlet pipe 3, the other end of the oil inlet pipe 3 is connected with an oil tank, and a pump 5 is installed on the oil inlet pipe 3; and a secondary liquid level detection mechanism is also arranged in the oil pool 1.
Therefore, the oil inlet pipe is connected with the oil tank, the electromagnetic valve is opened under the action of the pump, oil is introduced into the accommodating cavity of the oil pool through the oil inlet pipe, when the liquid level of the oil is in contact with the tuning fork liquid level sensor, the tuning fork liquid level sensor generates signal change, the tuning fork liquid level sensor is connected with the P L C controller, and after the P L C controller receives the signal change, the electromagnetic valve and the pump are closed.
In this embodiment, the secondary liquid level detection mechanism includes the floater 6, the support 61 is installed in the rotation of oil bath 1 upper end, the last rotation of support 61 installs pulley 62, floater 6 is connected with stay cord 63, stay cord 63 is located the one end fixed mounting in the oil bath 1 outside has heavy object 64, photoelectric switch is installed in the oil bath 1 outside, the oil bath 1 outside still is provided with the guiding mechanism who is used for leading to heavy object 64.
When the oil level rises, the floating ball rises along with the oil level, the pull rope is in a stretching state under the action of the weight, and after the photoelectric switch detects the weight and proves that the oil level reaches a high position, the electromagnetic valve and the pump are closed.
Be provided with secondary liquid level detection mechanism, supplementary tuning fork level sensor, after photoelectric switch or tuning fork level sensor detected the liquid level, then closed solenoid valve and pump, avoid both to interfere.
In this embodiment, the guide mechanism includes two guide plates 7 fixedly mounted on the outer side of the oil pool 1, a guide groove for guiding the weight 64 is formed between the two guide plates 7, a sliding groove is vertically arranged on each guide plate 7, a sliding block in sliding fit with the sliding groove is fixedly mounted on each weight 64, the photoelectric switch includes an infrared emitter 71 and an infrared receiver 72, the infrared emitter 71 is fixedly mounted between the guide grooves, the infrared receiver 72 is fixedly mounted on a mounting plate 73, the mounting plate 73 is fixedly connected with the guide plates 7, the infrared emitter 71 and the infrared receiver 72 are arranged in a right-to-right manner, and the distance between the infrared emitter 71 and the infrared receiver 72 is greater than the diameter of the circle where the weight 64 is located.
Like this, utilize the guide slot to lead the stay cord, the oil bath sets up indoor, does not have the wind to blow, so under the heavy object effect, the stay cord can keep vertical state. In order to better guarantee the movement of the heavy object, the sliding block is arranged on the heavy object and matched in the sliding groove, the heavy object is prevented from deviating, the monitoring reliability is improved, the heavy object falls between the infrared transmitter and the infrared receiver, the infrared receiver cannot receive signals of the infrared transmitter, the fact that the liquid level of the oil reaches the designated height is proved, and then the electromagnetic valve and the pump are closed.
In this embodiment, the floating ball 6 is made of foam. The density of the floating ball is less than that of the oil, the floating ball floats on the oil surface, the liquid level of the oil rises, and the floating ball rises accordingly.
In this embodiment, the weight 64 is a plumb bob. The pull rope can be better pulled, so that the pull rope keeps certain tension. Specifically, the weight of the plumb bob is smaller than the gravity of the floating ball, and the plumb bob can pull the pull rope. Before installation and debugging, a floating ball and a plumb can be selected according to actual conditions to perform tests, and proper weight is selected.
In the embodiment, the device further comprises a P L C controller 8, wherein the tuning fork liquid level sensor 2, the photoelectric sensor and the electromagnetic valve 4 as well as the pump 5 are electrically connected with the P L C controller 8, the tuning fork liquid level sensor and the photoelectric sensor form secondary insurance with each other, the reliability can be improved, and the P L C controller selects S7-200.
The action principle is as follows:
before the device is used, the floating ball, the weight, the tuning fork liquid level sensor and the pull rope are safely arranged, the infrared transmitter, the infrared receiver, the tuning fork liquid level sensor, the electromagnetic valve and the pump are connected with the P L C controller, the electromagnetic valve and the pump are opened, oil is filled into the oil pool through the oil inlet pipe, the liquid level of the oil rises, the weight descends, and when the tuning fork liquid level sensor is in contact with the liquid level or the infrared receiver cannot receive signals of the infrared transmitter, the electromagnetic valve is closed, and the pump stops acting.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The liquid level detection device for the liquid level of the oil pool is characterized by comprising the oil pool, wherein the oil pool is provided with an accommodating cavity, a tuning fork liquid level sensor is arranged at the upper end of the accommodating cavity of the oil pool, the oil pool is outwards connected with an oil inlet pipe, a solenoid valve is arranged on the oil inlet pipe, the other end of the oil inlet pipe is connected with an oil tank, and a pump is arranged on the oil inlet pipe; and a secondary liquid level detection mechanism is also arranged in the oil pool.
2. The liquid level detection device for the liquid level of the oil pool according to claim 1, wherein the secondary liquid level detection mechanism comprises a floating ball, a bracket is rotatably mounted at the upper end of the oil pool, a pulley is rotatably mounted on the bracket, the floating ball is connected with a pull rope, a heavy object is fixedly mounted at one end of the pull rope, which is located at the outer side of the oil pool, a photoelectric switch is mounted at the outer side of the oil pool, and a guide mechanism for guiding the heavy object is further arranged at the outer side of the oil pool.
3. The liquid level detection device for the liquid level of the oil pool according to claim 2, wherein the guiding mechanism comprises two guiding plates fixedly mounted on the outer side of the oil pool, a guiding groove for guiding a heavy object is formed between the two guiding plates, a sliding groove is vertically arranged on the guiding plates, a sliding block in sliding fit with the sliding groove is fixedly mounted on the heavy object, the photoelectric switch comprises an infrared emitter and an infrared receiver, the infrared emitter is fixedly mounted between the guiding grooves, the infrared receiver is fixedly mounted on a mounting plate, the mounting plate is fixedly connected with the guiding plates, the infrared emitter and the infrared receiver are oppositely arranged, and the distance between the infrared emitter and the infrared receiver is larger than the diameter of a circle where the heavy object is located.
4. The apparatus as claimed in claim 2, wherein the floating ball is made of foam.
5. The apparatus of claim 2, wherein the weight is a plumb bob.
6. The apparatus of claim 1, further comprising a P L C controller, wherein the tuning fork level sensor, the photoelectric sensor, the solenoid valve and the pump are electrically connected to the P L C controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922089342.6U CN211013164U (en) | 2019-11-28 | 2019-11-28 | Liquid level detection device for liquid level of oil pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922089342.6U CN211013164U (en) | 2019-11-28 | 2019-11-28 | Liquid level detection device for liquid level of oil pool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211013164U true CN211013164U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922089342.6U Active CN211013164U (en) | 2019-11-28 | 2019-11-28 | Liquid level detection device for liquid level of oil pool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211013164U (en) |
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2019
- 2019-11-28 CN CN201922089342.6U patent/CN211013164U/en active Active
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