High-liquid-level automatic pump stopping device
By designing a high-level automatic pump stop device in tank trucks or barrel liquid material cans, and using measurement branch pipes and tuning fork switches to detect liquid levels, the problems of liquid level detection difficulties and overflow risks are solved, and automatic pump stop is realized. Improves work efficiency and safety.
Patent Information
- Application Number
- CN202420986880.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-09
AI Technical Summary
When tank trucks or barrel liquid materials cans, due to the sealing of the tank, ordinary instruments cannot detect the liquid level, resulting in high risk of material overflow and accidents.
Design a high-level automatic pump stop device, including material main pipe, measuring branch pipe and material transfer pump. The head of the measuring branch pipe gradually decreases, and a tuning fork switch and baffle are installed to form negative pressure liquid absorption by flow rate difference. When the position reaches high, the tuning fork switch control pump is shut down.
Automatic liquid level detection and automatic pump shutdown are realized, which improves work efficiency, reduces manpower operations, avoids material overflow, and reduces accident risk.
Smart Images
Figure CN222254274U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of petrochemical industry, in particular to a high liquid level automatic pump stopping device. Background Art
[0002] When liquid materials are canned in tank trucks or barrels, due to the closed form of the tank and the need to be moved, ordinary instruments cannot detect it, which can easily cause the canned materials to overflow and there is a risk of accidents. Utility Model Content
[0003] The purpose of the utility model is to provide a high liquid level automatic pump stop device to solve the problems raised in the above background technology.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A high liquid level automatic pump stop device comprises a material main pipeline, a measuring branch pipeline and a material transfer pump, wherein the diameter of the measuring branch pipeline gradually decreases from the head of the measuring branch pipeline to the tail of the measuring branch pipeline, and the diameter of the head of the measuring branch pipeline is smaller than the diameter of the material main pipeline, one side of the material main pipeline is connected to the material transfer pump, and the other side is connected to the head of the measuring branch pipeline, a baffle is obliquely provided in the material main pipeline, the obtuse angle surface of the obstruction plate forms an opening with the inner wall of the material main pipeline, the connection between the material main pipeline and the head of the measuring branch pipeline is located at the acute angle formed by the baffle and the inner wall of the material main pipeline, a tuning fork switch is installed in the measuring branch pipeline, a controller is installed on the material transfer pump and is electrically connected to the material transfer pump for controlling the start and stop of the material transfer pump, and the tuning fork switch is electrically connected to the controller.
[0006] Preferably, the main material pipeline and the baffle are made of steel, which can withstand the impact and pressure of the fluid in the pipeline.
[0007] Preferably, the measuring branch pipe is made of a flexible rubber tube, which can control the height position of the tail of the measuring branch pipe in the canned container.
[0008] Preferably, the controller is a plc controller, and the tuning fork switch is electrically connected to the plc controller.
[0009] Compared with the prior art, the beneficial effects of the utility model are:
[0010] The utility model installs a measuring branch pipe, a tuning fork switch and a baffle, utilizes the flow velocity difference formed by the liquid flowing through the baffle, causes the measuring branch pipe to form a negative pressure to absorb the material, causes the liquid material to rise in the measuring branch pipe, and when the material contacts the tuning fork switch, a signal is sent to stop the loading pump, thereby realizing automatic pump stop at high liquid level, with a high degree of automation, improving work efficiency, reducing manpower, avoiding danger caused by excessive overflow of materials, and reducing the risk of accidents. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the structure of the utility model;
[0012] Figure 2 It is a partial schematic diagram of the utility model.
[0013] Reference numerals
[0014] 1. Material main pipeline, 2. Measuring branch pipeline, 3. Measuring branch pipeline head, 4. Measuring branch pipeline tail, 5. Tuning fork switch, 6. Material transfer pump, 7. Baffle, 8. Canned container. DETAILED DESCRIPTION
[0015] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.
[0016] like Figure 1-2 As shown, a high liquid level automatic pump stop device comprises a material main pipeline 1, a measuring branch pipeline 2 and a material transfer pump 6. The diameter of the measuring branch pipeline head 3 gradually decreases toward the measuring branch pipeline tail 4, and the diameter of the measuring branch pipeline head 3 is smaller than the diameter of the material main pipeline 1. One side of the material main pipeline 1 is connected to the material transfer pump 6, and the other side is connected to the measuring branch pipeline head 3. A baffle 7 is obliquely arranged in the material main pipeline 1. The obtuse angle surface of the baffle 7 forms an opening with the inner wall of the material main pipeline 1, and the material flows out from the opening. The connection between the material main pipeline 1 and the measuring branch pipeline head 3 is located at the acute angle formed by the baffle 7 and the inner wall of the material main pipeline 1, so as to prevent the material from entering the measuring branch pipeline 2 from the material main pipeline 1;
[0017] A tuning fork switch 5 is installed in the measuring branch pipe 2, and a plc controller is installed on the material transfer pump 6 for controlling the start and stop of the material transfer pump 6. The tuning fork switch 5 is electrically connected to the plc controller.
[0018] The material main pipeline 1 and the baffle 7 are both made of steel, which can withstand the impact and pressure of the fluid in the pipeline; the measuring branch pipeline 2 is made of an easily bendable rubber tube, which can control the height position of the measuring branch pipeline tail 4 in the tank container 8.
[0019] Working principle:
[0020] When tank trucks or barreled materials are filled with liquid materials, the material transfer pump 6 is started, and the liquid material is input into the canning container 8 through the material main pipeline 1, and the tail part 4 of the measuring branch pipeline is placed on the top of the canning container 8. The liquid material flows through the baffle 7 to form a flow rate difference. When the liquid level in the canning container 8 has not reached a high level, due to the different diameters of the head part 3 of the measuring branch pipeline and the tail part 4 of the measuring branch pipeline, different amounts of air entering will form a negative pressure. When the liquid level reaches a high level, the tail part 4 of the measuring branch pipeline contacts the liquid material, and the liquid material is sucked into the measuring branch pipeline 2. The liquid material rises in the measuring branch pipeline 2, thereby triggering the tuning fork switch 5. The tuning fork switch 5 transmits an electrical signal to the plc controller of the material transfer pump 6, and then the plc controller controls the material transfer pump 6 to stop running to realize automatic pump stop at high liquid level.
[0021] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A high liquid level automatic pump stop device, characterized in that: It includes a material main pipeline, a measuring branch pipeline and a material transfer pump. The diameter of the measuring branch pipeline gradually decreases from the head of the measuring branch pipeline to the tail of the measuring branch pipeline, and the diameter of the head of the measuring branch pipeline is smaller than the diameter of the material main pipeline. One side of the material main pipeline is connected to the material transfer pump, and the other side is connected to the head of the measuring branch pipeline. A baffle is obliquely provided in the material main pipeline, and the obtuse angle surface of the baffle forms an opening with the inner wall of the material main pipeline. The connection between the material main pipeline and the head of the measuring branch pipeline is located at the acute angle formed by the baffle and the inner wall of the material main pipeline. A tuning fork switch is installed in the measuring branch pipeline, and a controller is installed on the material transfer pump, which is electrically connected to the material transfer pump for controlling the start and stop of the material transfer pump, and the tuning fork switch is electrically connected to the controller.
2. A high liquid level automatic pump stop device according to claim 1, characterized in that: The main material pipeline and the baffle are both made of steel.
3. The high liquid level automatic pump stop device according to claim 1, characterized in that: The measuring branch pipeline is made of a flexible rubber tube.
4. The high liquid level automatic pump stop device according to claim 1, characterized in that: The controller is a plc controller, and the tuning fork switch is electrically connected to the plc controller.