Portable pressure-resistant sealed tank body liquid supplementing device
By designing a portable pressure-resistant sealed tank body fluid replenisher, the negative pressure suction method is used to solve the positive pressure problem in the tank body of the rare earth permanent magnet material, the smooth replenishment and precise control of lubricant are achieved, and the difficulty of replenishing fluid caused by the rise in the tank body in the prior art is solved.
Patent Information
- Application Number
- CN202422483354.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-15
AI Technical Summary
In the fine powder tank after airflow grinding of rare earth permanent magnet material, when replenishing lubricant, the positive pressure inside the tank makes it difficult to sustain fluid replenishment. The prior art adopts a positive pressure injection method to cause the pressure in the tank to continue to rise, affecting the fluid replenishment effect.
A portable pressure-resistant sealed tank body fluid replenisher is designed, which adopts a negative pressure suction method to reduce the pressure in the tank body through the air pump and exhaust pipe, suck liquid into the tank body by using negative pressure, and controls the liquid flow through the feed pipe and feed valve, and combines the liquid detector and controller to accurately replenish the liquid amount.
It achieves smooth replenishment of liquid under negative pressure, reduces the impact of positive pressure in the tank, ensures accurate replenishment of liquid, avoids liquid residue, and improves the sustainability and accuracy of replenishment.
Smart Images
Figure CN223149323U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of rare earth permanent magnet material processing, and particularly relates to a portable pressure-resistant sealed tank body liquid replenisher. Background Art
[0002] Lubricant needs to be replenished in the fine powder tank after the airflow mill of rare earth permanent magnet materials, and the mixing of powder and lubricant is realized in the tank. Since there are protective gases such as nitrogen in the tank body after the airflow mill, there is often a large positive pressure or slightly positive pressure in the tank body, which makes it very difficult to replenish lubricating liquid into the already sealed metal tank. In order to realize the liquid replenishment process, currently, the positive pressure injection method is generally adopted, and the liquid is filled into the tank through the pressure relief valve of the tank body. The methods to realize the positive pressure can be a pressure pump, a peristaltic pump, etc. Although this method is feasible, the positive pressure brought by the replenished liquid will cause the pressure in the tank body to continue to rise, making it difficult to continue the liquid replenishment. Content of the Utility Model
[0003] In view of this, the utility model discloses a portable pressure-resistant sealed tank body liquid replenisher, aiming to solve the problem that during the liquid replenishment process, the positive pressure brought by the replenished liquid will cause the pressure in the tank body to continue to rise, making it difficult to continue the liquid replenishment.
[0004] To achieve the above purpose, the utility model provides the following technical solutions:
[0005] A portable pressure-resistant sealed tank body liquid replenisher includes a liquid storage tank and a vertically arranged perfusion pipe. The bottom end of the perfusion pipe is detachably connected to the pressure-resistant sealed tank body, and a locking valve is arranged at the connection. The other end of the perfusion pipe is provided with a negative pressure generating structure. The negative pressure generating structure includes an exhaust pipe communicated with the perfusion pipe and an air extraction pump arranged on the air pipe; a feeding pipe is communicated between the liquid storage tank and the side wall of the perfusion pipe, and a feeding valve is arranged at the connection of the feeding pipe and the perfusion pipe.
[0006] In this solution, during liquid replenishment, the locking valve is opened, and part of the gas in the perfusion pipe and the pressure-resistant sealed tank body is pumped out by the air extraction pump and the exhaust pipe, so that the pressure in the perfusion pipe and the pressure-resistant sealed tank body is reduced to form a negative pressure; at this time, the feeding valve is opened, and the liquid in the liquid storage tank is sucked into the pressure-resistant sealed tank body through the feeding pipe and the perfusion pipe by using the negative pressure.
[0007] The beneficial effects of this solution are as follows: 1. The negative pressure suction method is used for liquid replenishment, which can reduce the positive pressure brought by the replenished liquid and prevent the pressure in the pressure-resistant sealed tank from being too large, affecting the liquid replenishment.
[0008] 2. By adopting the negative pressure suction method and using the pressure difference to promote the liquid to flow into the pressure-resistant sealed tank, it can effectively avoid liquid remaining in the perfusion pipe and avoid affecting the accuracy of quantitative liquid replenishment.
[0009] Furthermore, it further includes a flushing structure; the flushing structure includes an air storage tank, an air inlet pipe is communicatively provided between the air storage tank and the side wall of the perfusion pipe, and an air inlet valve is provided on the air inlet pipe.
[0010] Furthermore, a check valve is provided at the connection between the exhaust pipe and the perfusion pipe, and the flow direction of the check valve is from the perfusion pipe to the exhaust pipe.
[0011] Furthermore, a liquid detector is provided on the side wall of the liquid storage tank, and the liquid detector is used to monitor the liquid output of the liquid storage tank; it further includes a controller electrically connected to the liquid detector, and the controller is used to control the opening and closing of the air inlet valve and the feeding valve.
[0012] Furthermore, the connection between the air inlet pipe and the perfusion pipe is higher than the connection between the feeding pipe and the perfusion pipe.
[0013] Furthermore, the perfusion pipe is located between the liquid storage tank and the air storage tank.
[0014] Other advantages, objectives, and features of the present utility model will be described in the subsequent specification, and to some extent, they are obvious to those skilled in the art, or those skilled in the art can obtain teachings from the practice of the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to make the objectives, technical solutions, and beneficial effects of the present utility model clearer, the present utility model provides the following drawings for illustration:
[0016] Figure 1 It is a schematic structural diagram of the present utility model.
[0017] The reference numerals in the drawings are as follows: pressure-resistant sealed tank body 1, perfusion pipe 2, liquid storage tank 3, locking valve 4, exhaust pipe 5, air extraction pump 6, feeding pipe 7, feeding valve 8, air storage tank 9, air inlet pipe 10, air inlet valve 11, liquid detector 12. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] As Figure 1 shown:
[0019] A portable pressure-resistant sealed tank body 1 replenisher includes a liquid storage tank 3 and a vertically arranged perfusion pipe 2. The bottom end of the perfusion pipe 2 is detachably connected to the pressure-resistant sealed tank body 1, and a locking valve 4 is provided at the connection. The other end of the perfusion pipe 2 is provided with a negative pressure generating structure. The negative pressure generating structure includes an exhaust pipe 5 communicatively connected to the perfusion pipe 2 and an air extraction pump 6 provided on the air pipe; a feeding pipe 7 is communicatively provided between the liquid storage tank 3 and the side wall of the perfusion pipe 2, and a feeding valve 8 is provided at the connection between the feeding pipe 7 and the perfusion pipe 2.
[0020] In this solution, when replenishing the liquid, the locking valve 4 is opened, and part of the gas in the perfusion tube 2 and the pressure-resistant sealed tank 1 is extracted by the air extraction pump 6 and the exhaust pipe 5, so that the pressure in the perfusion tube 2 and the pressure-resistant sealed tank 1 is reduced to form a negative pressure; then the air extraction pump 6 and the one-way valve are closed. At this time, the feeding valve 8 is opened again, and the liquid in the liquid storage tank 3 is sucked into the feeding pipe 7 through the pressure difference and flows into the pressure-resistant sealed tank 1 through the perfusion tube 2; after the liquid replenishment is completed, the feeding valve 8 and the locking valve 4 are closed in sequence.
[0021] The beneficial effects of this solution are as follows: 1. Using the negative pressure suction method for liquid replenishment can reduce the positive pressure brought by the liquid replenishment, prevent the pressure in the pressure-resistant sealed tank from being too high, and affect the liquid filling.
[0022] 2. Adopting the negative pressure suction method and using the pressure difference to promote the liquid to flow into the pressure-resistant sealed tank 1 can effectively avoid the liquid remaining in the perfusion tube 2 and avoid affecting the accuracy of quantitative liquid replenishment.
[0023] In this embodiment, a flushing structure is further included; the flushing structure includes an air storage tank 9, and an air inlet pipe 10 is communicatively provided between the air storage tank 9 and the side wall of the perfusion tube 2, and an air inlet valve 11 is provided on the air inlet pipe 10.
[0024] The air storage tank 9 stores the same protective gas as the pressure-resistant sealed tank 1; after the liquid replenishment is completed, the feeding valve 8 is closed, the locking valve 4 is kept open, the air inlet valve 11 is opened, and the perfusion tube 2 is flushed with the gas in the air storage tank 9 to avoid liquid remaining in the perfusion tube 2. In addition, in order to increase the flushing intensity, a pressurizing device such as a plunger pump can be provided on the air storage tank 9, which belongs to conventional technical means and is not described in detail.
[0025] In this embodiment, a one-way valve is provided at the connection between the exhaust pipe 5 and the perfusion tube 2, and the flow direction of the one-way valve is from the perfusion tube 2 to the exhaust pipe 5.
[0026] By providing a one-way valve, the gas flow direction in the exhaust pipe 5 is restricted, and the external gas is prevented from flowing back during the air extraction process, resulting in the entry of impurities.
[0027] In this embodiment, a liquid detector 12 is provided on the side wall of the liquid storage tank 3, and the liquid detector 12 is used to monitor the liquid output of the liquid storage tank 3; a controller (the controller uses a single-chip microcomputer, which belongs to conventional technical means and is not shown in the figure) electrically connected to the liquid detector 12 is further included, and the controller is used to control the opening and closing of the air inlet valve 11 and the feeding valve 8.
[0028] In this embodiment, the liquid detector 12 uses a Coriolis mass flowmeter, and the intake valve 11 and the feeding valve 8 in this embodiment use electric valves; when the pressure in the pressure-resistant sealed tank 1 drops to the required level, the feeding valve 8 is opened and the controller and the liquid detector 12 are controlled. The liquid output of the liquid storage tank 3 is detected by the liquid detector 12. When the liquid output reaches the preset value, the liquid detector 12 transmits a signal to the controller, and the feeding valve 8 is controlled to close by the controller. At the same time, the controller controls the intake valve 11 to open; after the flushing is completed, the intake valve 11 and the controller are closed; the opening and closing of the intake valve 11 and the feeding valve 8 during the liquid replenishment process are controlled by the controller and the liquid detector 12, so as to more accurately control the liquid replenishment amount.
[0029] In this embodiment, the connection between the intake pipe 10 and the perfusion pipe 2 is higher than the connection between the feed pipe 7 and the perfusion pipe 2.
[0030] Since the connection between the intake pipe 10 and the perfusion pipe 2 is higher than the connection between the feed pipe 7 and the perfusion pipe 2, when the perfusion pipe 2 is flushed with gas, the connection between the feed pipe 7 and the perfusion pipe 2 can be effectively flushed, further avoiding liquid residue.
[0031] In this embodiment, the perfusion pipe 2 is located between the liquid storage tank 3 and the gas storage tank 9.
[0032] The above distribution makes the entry directions of the liquid and the gas opposite, enabling the gas to better flush to the port of the feed pipe 7.
[0033] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.
Claims
1. A portable pressure-resistant sealed tank liquid replenisher, comprising a liquid storage tank and a vertically arranged perfusion tube, the bottom end of the perfusion tube is detachably connected to the pressure-resistant sealed tank, and a locking valve is arranged at the connection, and it is characterized in that: The other end of the perfusion tube is provided with a negative pressure generating structure, and the negative pressure generating structure includes an exhaust pipe communicated with the perfusion tube and an air extraction pump arranged on the air pipe; a feed pipe is communicated between the liquid storage tank and the side wall of the perfusion tube, and a feeding valve is arranged at the connection of the feed pipe and the perfusion tube.
2. The portable pressure-resistant sealed tank liquid replenisher according to claim 1, characterized in that: It further includes a flushing structure; the flushing structure includes an air storage tank, an air inlet pipe is communicated between the air storage tank and the side wall of the perfusion tube, and an air inlet valve is arranged on the air inlet pipe.
3. The portable pressure-resistant sealed tank rehydrator according to claim 2, characterized in that: A check valve is arranged at the connection of the exhaust pipe and the perfusion tube, and the flow direction of the check valve is from the perfusion tube to the exhaust pipe.
4. The portable pressure-resistant sealed tank liquid replenisher according to claim 3, wherein: A liquid detector is arranged on the side wall of the liquid storage tank, and the liquid detector is used for monitoring the liquid output of the liquid storage tank; it further includes a controller electrically connected to the liquid detector, and the controller is used for controlling the opening and closing of the air inlet valve and the feeding valve.
5. A portable pressure-resistant sealed tank liquid replenisher according to claim 4, characterized in that: The connection of the air inlet pipe and the perfusion tube is higher than the connection of the feed pipe and the perfusion tube.
6. The portable pressure-resistant sealed tank liquid replenisher according to claim 5, characterized in that: The perfusion tube is located between the liquid storage tank and the air storage tank.