Liquid feeding high-position protection device
By setting a liquid level high alarm float and a liquid level detection float in the material box, and combining the liquid level controller to control the pneumatic diaphragm pump and solenoid valve, the problem of overflow in the liquid material supply system is solved, and accurate control of the liquid level and equipment safety are achieved.
Patent Information
- Application Number
- CN202422935783.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-11-29
AI Technical Summary
In existing liquid material supply systems, the float in the material tank rises and falls unstably with the liquid level, making it impossible to accurately determine whether the material is full. This can easily lead to overflow, waste of material, and possible damage to equipment and the environment.
A high-level float and a level detection float are set in the material box. The opening and closing of the pneumatic diaphragm pump and the solenoid valve are controlled by the liquid level controller to ensure that the feeding is stopped when the liquid level reaches the high-level float to prevent overflow.
It achieves accurate control of liquid level, prevents overflow, reduces material waste and avoids equipment damage, thus improving the safety and reliability of the system.
Smart Images
Figure CN223399605U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of batching equipment, in particular to a high-level protection device for liquid feeding. Background Art
[0002] The existing liquid material supply system controls the liquid level in the material tank by the state of the float. When the liquid level is insufficient, the system energizes the solenoid valve, ventilates the pneumatic diaphragm pump, and replenishes the material from the barrel.
[0003] During the discharge process of the material box, the float always rises and falls with the liquid level. Some materials are too viscous or easily dry and clump together, resulting in the float not rising with the liquid level when adding materials. At this time, the system cannot determine whether the material box is full, causing overflow during addition, which not only wastes materials but also pollutes the equipment and the environment, and in serious cases, damages the equipment and causes safety accidents. Utility Model Content
[0004] The purpose of the utility model is to solve the above problems and provide a liquid feeding high position protection device, which sets a liquid level high reporting float at the feeding high position of the material box. When the liquid level reaches the high reporting float, the feeding is stopped to prevent overflow.
[0005] The technical solution adopted by the utility model is:
[0006] A liquid feed high-level protection device comprises a material barrel and a material box, wherein a pneumatic diaphragm pump is connected to a material pipe between the material barrel and the material box to deliver the liquid material in the material barrel to the material box. The device is characterized in that it also comprises a liquid level controller, a liquid level detection float is arranged in the material box, and a liquid level high-alarm float is arranged at a high liquid level position set in the material box, the liquid level detection float and the liquid level high-alarm float are both connected to the liquid level controller, the pneumatic diaphragm pump is connected to an air source via a feed solenoid valve and a high-alarm solenoid valve arranged in series, the feed solenoid valve and the high-alarm solenoid valve are connected to the liquid level controller, and the liquid level controller controls the opening and closing of the feed solenoid valve and the high-alarm solenoid valve according to the liquid level feedback of the liquid level detection float and the liquid level high-alarm float, so as to open or close the pneumatic diaphragm pump.
[0007] Furthermore, the feed solenoid valve is installed at the proximal end of the pneumatic diaphragm pump, and the high alarm solenoid valve is installed at the distal end of the pneumatic diaphragm pump.
[0008] Furthermore, the feed solenoid valve is a normally closed valve, and the high alarm solenoid valve is a normally open valve.
[0009] Furthermore, when the liquid level detection float feedbacks a low liquid level, the liquid level controller controls the material feeding solenoid valve to open; when the liquid level detection float feedbacks a high liquid level, the liquid level controller controls the material feeding solenoid valve to close; when the liquid level high alarm float feedbacks a high liquid level, the liquid level controller controls the high alarm solenoid valve to close.
[0010] Furthermore, the liquid level controller is connected to an alarm, and when the liquid level high alarm float feedbacks a high liquid level, the liquid level controller controls the alarm to sound an alarm.
[0011] The beneficial effects of the utility model are:
[0012] (1) The high level reporting float ball promptly reports the upper limit of the liquid level to prevent overflow;
[0013] (2) When the liquid level is high, it means that the detection float has failed and an alarm will be issued in time. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Attachment Figure 1 It is a schematic diagram of the principle of the present utility model.
[0015] The reference numerals in the accompanying drawings are:
[0016] 1. Material barrel; 2. Material box;
[0017] 3. Material pipe; 4. Pneumatic diaphragm pump;
[0018] 5. Liquid level detection float; 6. Liquid level high alarm float;
[0019] 7. Liquid level controller; 8. Feed solenoid valve;
[0020] 9. High alarm solenoid valve; 10. Air source;
[0021] 11. Gas line; 12. Alarm. DETAILED DESCRIPTION
[0022] The specific implementation of a liquid high-level feeding device of the present invention is described in detail below with reference to the accompanying drawings.
[0023] See attached Figure 1 , attached Figure 1 This is a schematic diagram of the patent and does not represent an actual piping diagram. Those skilled in the art can implement this patent based on the schematic diagram.
[0024] A pneumatic diaphragm pump 4 is connected to a material pipe 3 between barrel 1 and bin 2 to deliver the liquid material in barrel 1 to bin 2. A liquid level detection float 5 is installed in bin 2, and a high-level alarm float 6 is installed at the high liquid level position set in bin 2. Both the liquid level detection float 5 and the high-level alarm float 6 are connected to a liquid level controller 7, which receives feedback from the liquid level detection float 5 and the high-level alarm float 6.
[0025] The pneumatic diaphragm pump 4 is connected to the air source 10 through the feed solenoid valve 8 and the high-alarm solenoid valve 9 arranged in series. The feed solenoid valve 8 and the high-alarm solenoid valve 9 are connected to the liquid level controller 7. The liquid level controller 7 controls the opening and closing of the feed solenoid valve 8 and the high-alarm solenoid valve 9 according to the liquid level information feedback from the liquid level detection float 5 and the liquid level high-alarm float 6, so as to open or close the pneumatic diaphragm pump 4.
[0026] The specific control method is that when the liquid level detection float 5 feeds back a low liquid level, the liquid level controller 7 controls the material feeding solenoid valve 8 to open; when the liquid level detection float 5 feeds back a high liquid level, the liquid level controller 7 controls the material feeding solenoid valve 8 to close; when the liquid level high alarm float 6 feeds back a high liquid level, the liquid level controller 7 controls the high alarm solenoid valve 9 to close.
[0027] Here, the feed solenoid valve 8 is a normally closed valve, and the high-level alarm solenoid valve 9 is a normally open valve. The feed solenoid valve 8 opens only when feeding. When the liquid level detection float 5 is operating normally, it will not trigger the liquid level high alarm float 6 to respond, and the high-level alarm solenoid valve 9 will remain open. Only when the liquid level detection float 5 does not float up and the liquid level reaches the position where the liquid level high alarm float 6 responds will the high-level alarm solenoid valve 9 close, ensuring that feeding is terminated in a timely manner.
[0028] On the air path 11 of the air source 10, the feed solenoid valve 8 is installed at the proximal end of the pneumatic diaphragm pump 4, and the high-alarm solenoid valve 9 is installed at the distal end of the pneumatic diaphragm pump 4. That is, the high-alarm solenoid valve 9 is located at the front end of the air intake, and when the liquid level detection float 5 is abnormal, the air source 10 is cut off.
[0029] When the high-alarm solenoid valve 9 is closed, the liquid level detection float 5 is already in an abnormal state. Therefore, an alarm 12 is connected to the liquid level controller 7. When the high-alarm float 6 feedbacks a high liquid level, the liquid level controller 7 controls the alarm 12 to sound an alarm.
[0030] It should be noted that the liquid level controller of this patent is a commonly used controller in the prior art, and ordinary technicians in this field can complete the implementation of the technical solution of this patent by setting its parameters.
[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. A liquid feed high-level protection device, comprising a material barrel and a material box, wherein a pneumatic diaphragm pump is connected to a material pipe between the material barrel and the material box to deliver the liquid material in the material barrel to the material box, characterized in that: It also includes a liquid level controller, a liquid level detection float is arranged in the material box, and a liquid level high alarm float is arranged at a high liquid level position set in the material box. The liquid level detection float and the liquid level high alarm float are both connected to the liquid level controller, and the pneumatic diaphragm pump is connected to the air source through a feed solenoid valve and a high level alarm solenoid valve arranged in series, and the feed solenoid valve and the high level alarm solenoid valve are connected to the liquid level controller. The liquid level controller controls the opening and closing of the feed solenoid valve and the high level alarm solenoid valve according to the liquid level feedback of the liquid level detection float and the liquid level high alarm float, so as to open or close the pneumatic diaphragm pump.
2. A liquid feed high-level protection device according to claim 1, characterized in that: The feed solenoid valve is installed at the proximal end of the pneumatic diaphragm pump, and the high alarm solenoid valve is installed at the distal end of the pneumatic diaphragm pump.
3. A liquid feed high-level protection device according to claim 2, characterized in that: The feed solenoid valve is a normally closed valve, and the high alarm solenoid valve is a normally open valve.
4. A liquid feed high-level protection device according to any one of claims 1 to 3, characterized in that: When the liquid level detection float ball feeds back a low liquid level, the liquid level controller controls the material feeding solenoid valve to open; when the liquid level detection float ball feeds back a high liquid level, the liquid level controller controls the material feeding solenoid valve to close; when the liquid level high alarm float ball feeds back a high liquid level, the liquid level controller controls the high alarm solenoid valve to close.
5. A liquid feed high-level protection device according to any one of claims 1 to 3, characterized in that: The liquid level controller is connected to an alarm. When the liquid level high alarm float ball feedbacks a high liquid level, the liquid level controller controls the alarm to sound an alarm.