Movable liquid adding device for railway storage battery
By designing a movable liquid adding device for railway batteries and adopting a three-way piping system consisting of a liquid replenishing tank and a one-way valve, the problems of low water replenishment accuracy and residual liquid backflow pollution in the existing technology are solved, and an efficient and safe liquid replenishment effect is achieved.
Patent Information
- Application Number
- CN202521962693.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-12-18
- Filing Date
- 2025-09-12
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2035-09-12
AI Technical Summary
The existing railway battery recharge device has problems such as low recharge accuracy and residual liquid backflow that contaminates pipelines and equipment, affecting recharge efficiency and safety.
A mobile liquid adding device for railway batteries was designed. It adopted a three-way piping system consisting of a liquid filling tank, a liquid extraction pump and a one-way valve. The one-way valve was set to prevent liquid backflow, and low and high liquid level sensors were used to monitor the liquid level to ensure the accuracy and safety of liquid filling.
It achieves high-precision liquid replenishment control, prevents residual liquid contamination, improves water replenishment efficiency and safety, and avoids pipeline contamination and equipment damage.
Smart Images
Figure CN223487103U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery electrolyte replenishment technology, and in particular to a portable liquid replenishment device for railway batteries. Background Technology
[0002] Railway battery boxes are usually installed under or on the roof of the car. During normal operation, the locomotive will continuously charge the battery. At this time, the battery will slowly electrolyze water. Therefore, the battery needs to be replenished with water regularly to avoid the danger of short circuit and fire caused by the battery drying out.
[0003] Specifically, during battery use, the electrolyte level decreases due to chemical reactions during charging and discharging. Timely replenishment of electrolyte is necessary to prevent severe impact on battery life. However, excessive electrolyte replenishment can lead to leakage and safety hazards during charging and discharging. Most existing battery pack water replenishment devices use a pump to deliver the liquid to be replenished to the water supply lines on the battery pack. Then, an extraction device removes the liquid from these lines. However, this process can lead to issues such as residual liquid in the supply lines continuing to replenish individual cells or removing liquid from individual cells. This can result in uneven replenishment, low accuracy, and an inability to achieve uniform electrolyte levels in all individual cells, leading to low replenishment efficiency.
[0004] In addition, railway batteries also have the problem of residual liquid backflow during water replenishment, which may cause some of the backflowed liquid to contaminate the water replenishment device pipeline, and in turn may contaminate the replenishment tank or other battery equipment that is being replenished.
[0005] Therefore, existing technologies still need to be improved and enhanced.
[0006] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this application and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this application. Utility Model Content
[0007] In order to solve one or more of the above-mentioned technical problems, such as pollution caused by residual liquid backflow in existing replenishment pipelines, this disclosure provides a portable liquid replenishment device for railway batteries, which aims to effectively and safely solve the above-mentioned problems.
[0008] In a first aspect of this disclosure, a portable liquid adding device for railway batteries is provided, comprising: a portable frame, a liquid adding tank, the liquid adding tank being fixed on the portable frame, a liquid extraction pump being disposed inside the liquid adding tank, wherein the liquid extraction pump is configured to be connected to a first end of a liquid adding tank outlet tee pipe via a liquid extraction pipe, a second end of the liquid adding tank outlet tee pipe being configured to be connected to an air pump, and a third end of the liquid adding tank outlet tee pipe being configured to be connected to the liquid adding device outlet; a first one-way valve is disposed between the first end of the liquid adding tank outlet tee pipe and the liquid adding tank outlet tee pipe body; and a second one-way valve is disposed between the second end of the liquid adding tank outlet tee pipe and the liquid adding tank outlet tee pipe body.
[0009] Furthermore, in some embodiments, the inlet of the liquid extraction pump is located at the bottom of the replenishment tank.
[0010] Furthermore, in some embodiments, a low liquid level sensor and a high liquid level sensor are provided on the inner wall of the liquid replenishment tank. The sensing part of the low liquid level sensor is configured to be at the same level as the uppermost end of the liquid inlet of the liquid extraction pump; the sensing part of the high liquid level sensor is configured to be at the same level as the lowermost end of the liquid outlet of the liquid adding device.
[0011] Furthermore, in some embodiments, the top of the aforementioned replenishment tank is provided with a vented top cover.
[0012] Furthermore, in some embodiments, a third one-way valve is provided between the third end of the liquid outlet tee of the above-mentioned replenishment tank and the liquid outlet of the above-mentioned liquid adding device.
[0013] Furthermore, in some embodiments, the first and second check valves are normally closed check valves, and the third check valve is a normally open check valve.
[0014] Furthermore, in some embodiments, the liquid adding device is also provided with a liquid replenishment port, which is connected to a liquid adding pump via a liquid adding pipe, and the liquid adding pump is fixed on the movable frame.
[0015] Furthermore, in some embodiments, the aforementioned fluid inlet is positioned near the bottom of the aforementioned movable frame.
[0016] Furthermore, in some embodiments, the liquid outlet is positioned near the top of the movable frame.
[0017] Furthermore, in some embodiments, the control circuit, control panel, and battery pack of the liquid adding device are positioned near the top of the liquid adding device.
[0018] The beneficial effects of this disclosure are at least as follows:
[0019] 1) In some embodiments, a liquid outlet tee is provided for the replenishment tank. The first end of the liquid outlet tee is connected to the replenishment tank as the liquid source, the second end of the liquid outlet tee is connected to the air pump as the air source, and the third end of the liquid outlet tee is connected to the external liquid outlet as the liquid outlet. This allows the replenishment to be completed when liquid (especially water) needs to be supplied by opening the first and third ends of the tee. After replenishment, in order to remove any residual liquid in the pipeline, the second and third ends are opened and air is blown into the tee to discharge any residual liquid from the outlet. This prevents residual liquid from affecting the next replenishment and also prevents residual liquid from contaminating the replenishment pipeline and subsequently contaminating other batteries.
[0020] 2) Further, in some embodiments, a first check valve is installed between the first end of the replenishment tank outlet tee and the body of the replenishment tank outlet tee to prevent liquid backflow into the replenishment tank, which could contaminate the liquid (e.g., water) in the replenishment tank. Further, a second check valve is installed between the second end of the replenishment tank outlet tee and the body of the replenishment tank outlet tee to prevent liquid backflow into the air pump, which could affect the normal operation of the air pump or even cause it to fail. Further, a third check valve is installed between the third end of the replenishment tank outlet tee and the outlet to further block backflow of liquid from the outside (which could contaminate the pipeline). The first and second check valves are normally closed check valves; unless maintenance or modification is required, keeping them normally closed ensures that secondary accidents such as leakage will not occur if the valve fails. The third check valve is a normally open check valve; unless maintenance or modification is required, it remains normally open to effectively connect to any possible external check valves.
[0021] 3) Further, in some embodiments, a low liquid level sensor and a high liquid level sensor are provided on the inner wall of the replenishment tank. The sensing part of the low liquid level sensor is at the uppermost point of the liquid inlet of the liquid extraction pump and is at a horizontal plane to monitor the lowest liquid level position. This prevents air from being drawn into the replenishment tank when the liquid level is lower than the uppermost point of the liquid inlet of the liquid extraction pump, which could then impact the battery and generate bubbles and other adverse factors. The sensing part of the high liquid level sensor is located at the lowermost point of the liquid outlet of the liquid adding device and is at a horizontal plane to monitor the highest liquid level position. When the liquid level is higher than the lowermost point of the liquid outlet of the liquid adding device, the pipe connecting to the liquid outlet will be immersed in liquid, preventing possible situations where it is difficult to observe the liquid outlet from the top cover.
[0022] 4) Further, in some embodiments, the inlet of the liquid extraction pump is located at the bottom of the replenishment tank, making it close to the inlet position during operation, thereby increasing the liquid intake power and reducing energy consumption. Further, in some embodiments, a vented top cover is provided on the top of the replenishment tank to prevent vacuum in the replenishment tank from preventing ineffective liquid extraction. Further, in some embodiments, the replenishment port is located near the bottom of the movable frame because the area around the replenishment port is easily wetted during replenishment, which affects the use and cleanliness of the device; while placing the outlet near the top of the movable frame, and placing the control circuit, control panel, and battery pack of the liquid adding device near the top of the liquid adding device, not only separates the inlet and outlet ports and facilitates operation, but also ensures that overflowing liquid during replenishment does not easily affect the outlet, control circuit, control panel, and battery pack. Attached Figure Description
[0023] The above and other features, advantages and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description, wherein:
[0024] Figure 1 A diagram is shown of a liquid filling device for a portable railway battery according to an embodiment of the present disclosure;
[0025] Figure 2 An internal view of a liquid filling device for a portable railway battery according to an embodiment of the present disclosure is shown;
[0026] Figure 3 A disassembled diagram of a portable liquid filling device for railway batteries according to an embodiment of the present disclosure is shown; and
[0027] In the various accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts; wherein the reference numerals are: liquid adding device 100, movable frame 10, control circuit 10-1, control panel 10-2, battery pack 10-3, cabinet door 10-7, casters 10-8, replenishment tank 30, liquid extraction pump 30-1, liquid inlet 30-1-1, low liquid level sensor 30-3, high liquid level sensor 30-4, and extraction pipe 30-5. 30-6, 30-6-1, 30-6-2, 30-6-3, 30-6-5, 30-6-6, 30-6-7, 30-8, 30-6-8, 40, 60, 60, 70, 80, 90, 90. Detailed Implementation
[0028] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.
[0029] In the description of embodiments of this disclosure, the term "comprising" and similar terms should be understood as open-ended inclusion, i.e., "including but not limited to". The term "based on" should be understood as "at least partially based on". The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment". The terms "first", "second", etc., may refer to different or the same objects. Other explicit and implicit definitions may also be included below.
[0030] In order to solve at least one of the aforementioned technical problems, as well as one or more other potential problems, an exemplary embodiment of this disclosure provides a portable liquid replenishment device for railway batteries, which includes a movable frame and a replenishment tank.
[0031] The following description, in conjunction with the accompanying drawings and embodiments, provides further explanation.
[0032] Figure 1 A diagram of a portable railway battery fluid filling device according to an embodiment of the present disclosure is shown. In the illustrated embodiment, the portable railway battery fluid filling device 100 mainly includes: a movable frame 10 and a fluid tank 30, wherein the fluid tank 30 is fixed to the movable frame 10. As shown, the movable frame 10 can be in the form of a wheeled cart as illustrated; the fluid tank 30 can be fixed in the frame of the movable frame 10, but is generally located inside the frame. Further, in some embodiments, the fluid filling device 100 is also provided with a fluid inlet 80, which is configured to be connected to a fluid pump 90 via a fluid filling pipe (not shown), and the fluid pump 90 can also be fixed to the movable frame 10. Further, in some embodiments, the fluid inlet 80 is located near the bottom of the movable frame 10 because the area near the fluid inlet 80 is easily wetted during fluid filling, thereby affecting the use and cleanliness of the device. Furthermore, in some embodiments, the liquid outlet 60 is positioned near the top of the movable frame 10, and the control circuit 10-1, control panel 10-2, and battery pack 10-3 of the liquid adding device 100 are also positioned near the top of the liquid adding device 100. This not only keeps the inlet and outlet ports away from the liquid outlet and facilitates operation, but also ensures that liquid overflowing during replenishment does not easily affect the liquid outlet 60, control circuit 10-1, control panel 10-2, and battery pack 10-3.
[0033] Furthermore, in order to explain in more detail the liquid replenishment tank 30 and related components of this disclosure to illustrate the working principle of the liquid adding device 100 of this disclosure, the following description is provided in conjunction with the accompanying drawings.
[0034] Figure 2An internal view of a portable railway battery liquid adding device according to an embodiment of the present disclosure is shown. In the illustrated embodiment, a liquid extraction pump 30-1 is provided inside the liquid tank 30, wherein the liquid extraction pump 30-1 is configured to be connected to the first end 30-6-1 of the liquid tank outlet tee 30-6 via a liquid extraction pipe 30-5, the second end 30-6-2 of the liquid tank outlet tee 30-6 is configured to be connected to an air pump 40, and the third end 30-6-3 of the liquid tank outlet tee 30-6 is configured to be connected to the liquid outlet (not shown) of the liquid adding device 100. By setting up a liquid outlet tee for the liquid replenishment tank, with the first end of the tee connected to the liquid replenishment tank as the liquid source, the second end connected to the air pump as the air source, and the third end connected to the external liquid outlet as the liquid outlet, liquid replenishment can be completed by opening the first and third ends of the tee when liquid needs to be supplied (especially distilled water). After replenishment, to remove any residual liquid in the pipeline, the second and third ends are opened, and air is blown into the tee by the air pump to discharge any remaining liquid from the outlet. This prevents residual liquid from affecting the next replenishment and also prevents backflow of residual liquid from contaminating the pipeline and subsequently other batteries. Furthermore, in some embodiments, a first one-way valve 30-6-6 is provided between the first end 30-6-1 of the replenishment tank outlet tee pipe 30-6 and the body 30-6-5 of the replenishment tank outlet tee pipe; a second one-way valve 30-6-7 is provided between the second end 30-6-2 of the replenishment tank outlet tee pipe 30-6 and the body 30-6-5 of the replenishment tank outlet tee pipe. A first check valve is installed between the first end of the liquid outlet tee pipe of the replenishment tank and the main body of the liquid outlet tee pipe to prevent liquid from flowing back into the replenishment tank and contaminating the liquid (e.g., distilled water) in the replenishment tank. Furthermore, a second check valve is installed between the second end of the liquid outlet tee pipe of the replenishment tank and the main body of the liquid outlet tee pipe to prevent liquid from flowing back into the air pump, which could affect the normal operation of the air pump or even cause the air pump to fail. Furthermore, a third check valve is installed between the third end of the liquid outlet tee pipe of the replenishment tank and the liquid outlet to further block liquid from flowing back from the outside (which would contaminate the pipeline). Furthermore, in some embodiments, a third check valve (not shown) is provided between the third end 30-6-3 of the liquid outlet tee 30-6 of the replenishment tank and the liquid outlet of the liquid adding device 100. The first check valve 30-6-6 and the second check valve 30-6-7 mentioned above are normally closed check valves. Unless maintenance or modification is required, keeping them normally closed can ensure that secondary accidents such as leakage will not occur when the valve fails. The third check valve (not shown) mentioned above is a normally open check valve. Unless maintenance or modification is required, keeping it normally open can effectively connect to possible external check valves.
[0035] Furthermore, in some embodiments, the inlet 30-1-1 of the liquid extraction pump 30-1 is located at the bottom of the replenishment tank 30; this allows it to be close to the inlet position during operation, thereby increasing the inlet power and reducing energy consumption.
[0036] Furthermore, in some embodiments, a low liquid level sensor 30-3 and a high liquid level sensor 30-4 are provided on the inner wall of the replenishment tank 30. The sensing part of the low liquid level sensor 30-3 is configured to be at the same level as the uppermost end of the liquid inlet 30-1-1 of the liquid extraction pump 30-1, in order to monitor the lowest liquid level position and prevent air from being drawn into the replenishment tank when the liquid level is lower than the uppermost end of the liquid inlet of the liquid extraction pump, which could then impact the battery and generate bubbles and other adverse factors. The sensing part of the high liquid level sensor 30-4 is configured to be at the same level as the lowermost end of the liquid outlet of the liquid adding device 100, in order to monitor the highest liquid level position. When the liquid level is higher than the lowermost end of the liquid outlet of the liquid adding device, the pipe connecting to the liquid outlet will be immersed in liquid, preventing possible situations where it is not conducive to observing the liquid outlet from the top cover direction.
[0037] Furthermore, in some embodiments, a vented top cover 30-8 is provided on the top of the replenishment tank 30 to prevent the replenishment tank from being ineffectively pumping out liquid due to vacuum.
[0038] Furthermore, as a further explanation of the plan, the following will be illustrated in conjunction with the accompanying drawings.
[0039] Figure 3 A disassembly diagram of a portable railway battery liquid filling device according to an embodiment of the present disclosure is shown. In the illustrated embodiment, the aforementioned portable railway battery liquid filling device 100 is disassembled, wherein the liquid filling device 100 further includes: a cabinet door 10-7 for covering the front of the movable frame 10; and a plurality of casters 10-8 for easy movement, disposed at the bottom of the movable frame 10; in addition, a connecting water pipe for convenient liquid replenishment is wrapped around a winding drum 70, and the winding drum 70 is fixed to the movable frame 10. Furthermore, it should be noted that the present disclosure does not aim to improve the control circuit 10-1 and the control panel 10-2 and the battery pack 10-3, nor does it aim to improve... Figure 2 The low liquid level sensor indicated in the document ( Figure 3 (not shown in the image) and high liquid level sensor ( Figure 3 The sensing function (not shown in the diagram); the above-mentioned electrical components are only shown in their positions in this disclosure. Those skilled in the art can understand and adopt the corresponding control circuit 10-1, control panel 10-2, battery pack 10-3, low liquid level sensor 30-3, and high liquid level sensor 30-4 structures and their operating methods. It should also be understood that, in Figure 3 In the middle, it also instructed Figure 1 or Figure 2 The example embodiment mentions a replenishment tank 30, a vented top cover 30-8, and a liquid addition pump 90.
[0040] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
[0041] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.
Claims
1. A portable liquid filling device for railway storage batteries, comprising: A movable frame and a replenishment tank, the replenishment tank being fixed to the movable frame, the replenishment tank containing a liquid extraction pump. It is characterized in that The liquid extraction pump is configured to be connected to the first end of the liquid outlet tee of the replenishment tank via a liquid extraction pipe, the second end of the liquid outlet tee of the replenishment tank is configured to be connected to an air pump, and the third end of the liquid outlet tee of the replenishment tank is configured to be connected to the liquid outlet of the liquid adding device. A first check valve is provided between the first end of the liquid outlet tee pipe of the replenishment tank and the main body of the liquid outlet tee pipe of the replenishment tank; a second check valve is provided between the second end of the liquid outlet tee pipe of the replenishment tank and the main body of the liquid outlet tee pipe of the replenishment tank.
2. The liquid adding device according to claim 1, characterized in that, The inlet of the liquid extraction pump is located at the bottom of the replenishment tank.
3. The liquid adding device according to claim 2, characterized in that, The inner wall of the replenishment tank is equipped with a low liquid level sensor and a high liquid level sensor. The sensing part of the low liquid level sensor is configured to be at the same level as the uppermost end of the liquid inlet of the liquid extraction pump; the sensing part of the high liquid level sensor is configured to be at the same level as the lowermost end of the liquid outlet of the liquid adding device.
4. The liquid adding device according to claim 1, characterized in that, The top of the replenishment tank is equipped with a vented cover.
5. The liquid adding device according to claim 1, characterized in that, A third one-way valve is provided between the third end of the liquid outlet tee of the replenishment tank and the liquid outlet of the liquid adding device.
6. The liquid adding device according to claim 5, characterized in that, The first and second check valves are normally closed check valves, and the third check valve is a normally open check valve.
7. The liquid adding device according to claim 1, characterized in that, The liquid adding device is also provided with a liquid replenishment port, which is connected to a liquid adding pump via a liquid adding pipe, and the liquid adding pump is fixed on the movable frame.
8. The liquid adding device according to claim 7, characterized in that, The fluid inlet is positioned near the bottom of the movable frame.
9. The liquid adding device according to claim 1, characterized in that, The liquid outlet is positioned near the top of the movable frame.
10. The liquid adding device according to claim 1, characterized in that, The control circuit, control panel, and battery pack of the liquid adding device are positioned near the top of the liquid adding device.