Liquid level self-adjusting pressure-stabilizing buffer water tank

Abstract

The utility model provides a liquid level self-adjusting pressure-stabilizing buffer water tank which comprises a tank body, a water inlet pipe and a water outlet pipe are arranged on the side wall of the tank body, and the water inlet pipe and the water outlet pipe are respectively provided with an electric control valve body. The liquid level adjusting mechanism comprises a liquid level pipe and a double-ball liquid level switch, the liquid level pipe is communicated with the tank body, the double-ball liquid level switch is arranged in the liquid level pipe and comprises a magnetic sensing rod body and two magnetic floating balls, the magnetic sensing rod body is connected with the electric control valve body, and the two magnetic floating balls are arranged on the magnetic sensing rod body in a penetrating mode at intervals. According to the utility model, the liquid level of the medium in the tank body is detected and automatically adjusted through the liquid level adjusting mechanism, so that the stability of the liquid storage amount in the tank body can be ensured, and the problems of system risk or failure and the like caused by over-high or over-low liquid level are fundamentally avoided; and particularly, the water inlet pipe and the water outlet pipe are automatically adjusted in real time through the double-ball liquid level switch, so that the water supply device has the advantages of being high in response speed, high in automation degree, accurate in adjustment and control and the like, and has wide application prospects in the industry.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning auxiliary structure technology, specifically to a liquid level self-regulating pressure stabilizing buffer water tank. Background Technology

[0002] In modern central air conditioning systems, buffer tanks play a crucial role. As people's demands for indoor environmental comfort continue to increase, and as commercial and industrial sectors become more reliant on large-scale central air conditioning systems, the performance of buffer tanks has an increasingly significant impact on the operational efficiency and stability of the entire central air conditioning system.

[0003] In central air conditioning systems, buffer tanks primarily function to increase system water capacity and store cooling or heating energy. In heating mode, by storing hot water, they regulate system heat load fluctuations, effectively reducing the frequency of main unit starts. Frequent main unit starts not only accelerate equipment wear and tear, reducing its lifespan, but also consume significant amounts of electricity, increasing operating costs. The hot water stored in the buffer tank can store heat during periods of low load and release it during peak periods, maintaining stable system operation, reducing the main unit's start-up frequency, and achieving energy savings and equipment protection.

[0004] However, current central air conditioning systems have significant deficiencies in the level control of buffer tanks. Since the buffer tank stores hot water, excessively high levels cause a sharp increase in pressure within the tank. This not only increases the burden on the entire system, placing greater pressure on pipes, valves, and other components, increasing the risk of leaks and ruptures, but also poses serious safety hazards such as scalding and equipment damage. Conversely, if the buffer tank level is too low, the system's hot water demand cannot be met.

[0005] Air conditioning systems typically include an expansion tank, which is usually connected in series with the system piping. It uses its internal air bladder to elastically replenish the system pressure, ensuring the normal circulation of refrigerant within the system and maintaining the stable cooling or heating performance of the air conditioning system. However, in limited air conditioning systems, the additional expansion tank occupies internal space and increases the difficulty of the internal layout of the air conditioning system.

[0006] Currently, most common buffer tank level control systems on the market use simple, traditional devices such as float valves. These devices have slow response times and are difficult to monitor and adjust the level accurately in real time. When the system's heat load changes rapidly, they cannot adjust the level in time, causing the level to frequently deviate from the reasonable range, seriously affecting the normal operation of the central air conditioning system. Summary of the Invention

[0007] Therefore, the technical problem to be solved by this utility model is to overcome the problem that the liquid level of the air conditioning buffer water tank is difficult to control accurately in real time in the prior art, and to provide a liquid level self-regulating pressure stabilizing buffer water tank.

[0008] To solve the above-mentioned technical problems, this utility model provides a self-regulating pressure-stabilizing buffer water tank, which includes: a tank body, the tank body being filled with a medium, and an inlet pipe and an outlet pipe provided on its side wall, the inlet pipe and the outlet pipe being respectively connected to the inside of the tank body, and each being provided with an electrically controlled valve body; a liquid level regulating mechanism, the liquid level regulating mechanism including a liquid level tube and a double-ball liquid level switch, the liquid level tube being connected to the tank body, at least a portion of the liquid level tube extending upward along the height direction of the tank body, the double-ball liquid level switch being disposed in the liquid level tube, which includes a magnetic sensitive rod body and two magnetic floats, the magnetic sensitive rod body being connected to the electrically controlled valve body, the two magnetic floats being spaced apart and passing through the magnetic sensitive rod body, and the liquid level height of the medium being located between the two magnetic floats.

[0009] In one embodiment of this utility model, the upper magnetic float is positioned at a liquid level of 85-95% of the tank volume, and the lower magnetic float is positioned at a liquid level of 65-80% of the tank volume.

[0010] In one embodiment of this utility model, the liquid level regulating mechanism further includes a connecting assembly. The magnetic sensitive rod is connected to the liquid level tube through the connecting assembly. The connecting assembly includes a flange, a sealing nut, and an extension sleeve. The flange is disposed at the opening of the liquid level tube. One end of the extension sleeve is sealed, and the other end passes through the flange into the interior of the liquid level tube and is sleeved to connect the magnetic sensitive rod. The sealing nut is disposed between the flange and the extension sleeve.

[0011] In one embodiment of this utility model, the dual-ball level switch further includes multiple limiting blocks and screws. The multiple limiting blocks are respectively connected to the magnetic sensitive rod body by the screws. The magnetic float is disposed between two adjacent limiting blocks so as to adjust its position on the magnetic sensitive rod body by means of the limiting blocks.

[0012] In one embodiment of the present invention, the liquid level tube is disposed outside the tank body and includes a bent portion and an extension portion. One end of the bent portion is connected to the tank body, and the other end is bent toward the top of the tank body. The extension portion is connected to the bent portion and extends along the height direction of the tank body. The double-ball liquid level switch is disposed inside the extension portion.

[0013] In one embodiment of the present invention, the liquid level tube is configured as a straight tube extending along the height direction of the tank, passing through the top of the tank and into the interior of the tank.

[0014] In one embodiment of the present invention, the tank body includes a pressure relief assembly, which is connected to the tank body and includes a first exhaust valve, a safety valve, and a pressure gauge, wherein the safety valve is signal-connected to the pressure gauge.

[0015] In one embodiment of the present invention, the liquid level regulating mechanism includes a second vent valve, which is connected to the top of the liquid level pipe.

[0016] In one embodiment of this utility model, the inlet pipe passes through and connects to the tank body, with one end outside the tank body connected to the electrically controlled valve body, and the other end inside the tank body bent toward the top of the tank body; the outlet pipe is located below the inlet pipe, passes through and connects to the tank body, with one end outside the tank body connected to the electrically controlled valve body, and the other end inside the tank body bent toward the top of the tank body.

[0017] In one embodiment of the present invention, the tank body further includes a lifting lug, a support, and a drain pipe. The lifting lug is connected to the top of the tank body, the support supports the tank body, and the drain pipe passes through and is connected to the bottom of the tank body, and is provided with a drain valve.

[0018] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0019] The self-regulating pressure-stabilizing buffer water tank of this utility model uses a liquid level adjustment mechanism to detect and automatically adjust the liquid level of the medium inside the tank in real time, thereby ensuring the stability of the liquid volume inside the tank. This fundamentally avoids system risks or failures caused by excessively high or low liquid levels. In particular, this application uses a dual-ball liquid level switch to automatically adjust the inlet and outlet pipes in real time, thus giving it advantages such as fast response speed, high degree of automation, and precise control, and making it a promising candidate for use in the industry. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the structure of the self-regulating pressure-stabilizing buffer water tank in a preferred embodiment of the present invention;

[0022] Figure 2 yes Figure 1 The diagram shows the structure of the liquid level regulating mechanism in the self-regulating pressure-stabilizing buffer tank.

[0023] Figure 3This is a schematic diagram of the structure of a self-regulating pressure-stabilizing buffer water tank in another embodiment of this utility model.

[0024] Explanation of reference numerals in the accompanying drawings: 100, Tank body; 110, Inlet pipe; 120, Outlet pipe; 130, Pressure relief assembly; 131, First vent valve; 132, Safety valve; 133, Pressure gauge; 140, Lifting lug; 150, Support; 160, Drain pipe; 200, Liquid level adjustment mechanism; 210, Liquid level pipe; 211, Bending part; 212, Extension part; 220, Double-ball liquid level switch; 221, Magnetic rod; 222, Magnetic float; 223, Limiting block; 224, Screw; 230, Connecting assembly; 231, Flange; 232, Sealing nut; 233, Extension sleeve; 240, Second vent valve. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention. Example 1

[0026] See Figure 1 As shown, this embodiment provides a self-regulating pressure-stabilizing buffer tank for maintaining the stability of the medium stored inside the tank 100. When the liquid level inside the tank 100 is too high or too low, it can automatically adjust itself within a short time, thereby improving the stability and lifespan of the air conditioning system. Specifically, the self-regulating pressure-stabilizing buffer tank of this embodiment includes:

[0027] Tank 100, the tank 100 is filled with a medium, and its side wall is provided with an inlet pipe 110 and an outlet pipe 120. The inlet pipe 110 and the outlet pipe 120 are respectively connected to the inside of the tank 100, and both are provided with an electrically controlled valve body.

[0028] A liquid level regulating mechanism 200 includes a liquid level pipe 210 and a dual-ball liquid level switch 220. The liquid level pipe 210 is connected to the tank 100, and at least a portion of the liquid level pipe 210 extends upward along the height direction of the tank 100. The dual-ball liquid level switch 220 is disposed in the liquid level pipe 210 and includes a magnetic sensitive rod 221 and two magnetic floats 222. The magnetic sensitive rod 221 is connected to the electrically controlled valve body, and the two magnetic floats 222 are spaced apart on the magnetic sensitive rod 221. The liquid level of the medium is located between the two magnetic floats 222.

[0029] In this embodiment, the medium stored inside the tank 100 is water, which can stabilize the system pressure after the air conditioner is started and provide continuous temperature energy output under different functions. The tank 100 is configured with a capsule-shaped structure to improve its support stability. In this embodiment, the tank 100 is also provided with a support 150, which supports the tank 100 to facilitate its assembly and use. Furthermore, the tank 100 in this embodiment also includes a lifting lug 140, which is connected to the top of the tank 100 to facilitate the operator's handling or disassembly.

[0030] In this embodiment, the inlet pipe 110 passes through and connects to the tank 100. One end of the inlet pipe outside the tank 100 is connected to the electrically controlled valve body, and the other end inside the tank 100 is bent towards the top of the tank 100. It should be noted that during prolonged operation, the medium can carry external impurities into the tank 100, where they will deposit at the bottom. These deposited impurities, when agitated externally, can easily circulate within the tank 100 with the medium, potentially causing pipe blockage, equipment damage, and increased system maintenance costs and the risk of malfunction. The bend at the end of the inlet pipe 110 in this application causes the medium to first gush upwards after entering the tank 100, and then fall into the tank under gravity. This upward movement breaks the conventional path of the medium flowing straight downwards, effectively avoiding the situation where the medium flows directly downwards in the tank. This greatly reduces the agitation of the dirt at the bottom of the tank 100 by the medium flow, keeps the medium in the tank clean, and provides a strong guarantee for the stable and efficient operation of the entire self-regulating pressure-stabilizing buffer tank system.

[0031] Correspondingly, in this embodiment, the outlet pipe 120 is located below the inlet pipe 110, passing through and connecting to the middle of the tank 100. One end of the outlet pipe 120 located outside the tank 100 is connected to the electrically controlled valve body, and the other end located inside the tank 100 is bent towards the top of the tank 100. Specifically, based on the above structural configuration, the outlet pipe 120 in this embodiment can discharge the medium from top to bottom in the middle of the tank 100, preventing impurities deposited at the bottom of the tank 100 from being discharged through the drain pipe.

[0032] For impurities inside the tank 100, this embodiment discharges them in a directional manner through a drain pipe 160 located at the bottom of the tank 100. Specifically, the drain pipe 160 is connected to the bottom of the tank 100 and is equipped with a drain valve.

[0033] In this embodiment, during the filling of the empty tank 100 with the medium, as the medium is continuously injected, the internal space of the tank 100 is gradually occupied, the gas is compressed, and the pressure increases accordingly. To prevent safety accidents such as tank 100 rupture due to excessive pressure, this application provides a pressure relief assembly 130 at the top of the tank 100. The pressure relief assembly 130 is connected to the tank 100 and includes a first exhaust valve 131, a safety valve 132, and a pressure gauge 133. The safety valve 132 is signal-connected to the pressure gauge 133. The first exhaust valve 131 is preferably an automatic exhaust valve, which has a pre-set specific exhaust threshold. This threshold is determined comprehensively based on factors such as the material strength of the tank 100, the design pressure, and the characteristics of the medium being filled. During the filling process, once the internal pressure of the tank 100 rises and exceeds the exhaust threshold, the first exhaust valve 131 will automatically open, venting excess gas outwards, thereby effectively releasing the internal pressure of the tank 100 and maintaining the pressure within a safe range.

[0034] Furthermore, to further enhance safety, this embodiment also equips the top of the tank 100 with a safety valve 132 and a pressure gauge 133. When the first exhaust valve 131 fails to effectively control the pressure due to a malfunction or other special circumstances, causing the pressure to rise continuously and reach the opening pressure of the safety valve 132, the safety valve 132 can quickly discharge a large amount of gas in a short time, thereby rapidly reducing the internal pressure of the tank 100. Based on the above structure, the first exhaust valve 131 and the pressure safety valve 132 cooperate with each other to form a dual safety protection mechanism. Specifically, under normal operating conditions, the first exhaust valve 131 undertakes the main pressure regulation task, which can promptly discharge excess pressure generated by medium filling, while the safety valve 132 serves as a backup defense line, playing a crucial role in extreme situations such as the failure of the automatic exhaust valve 131, ensuring that the tank 100 can effectively avoid safety accidents caused by excessive pressure under any circumstances, comprehensively protecting the safe and stable operation of the entire system. In addition, operators can also observe the internal pressure of the tank 100 in real time through the pressure gauge 133 to ensure the operational safety of the tank 100.

[0035] See Figure 2 As shown, in this embodiment, the liquid level tube 210 is disposed outside the tank 100, and includes a bent portion 211 and an extension portion 212. One end of the bent portion 211 is connected to the tank 100, and the other end is bent toward the top of the tank 100. The extension portion 212 is connected to the bent portion 211 and extends along the height direction of the tank 100. The double-ball liquid level switch 220 is disposed inside the extension portion 212. Based on this, the liquid level tube 210 and the tank 100 form a "U"-shaped communicating vessel structure, thereby ensuring that the liquid level tube 210 and the liquid level inside the tank 100 are always kept at the same level.

[0036] Furthermore, in this embodiment, the dual-ball level switch 220 has a level tube 210 extending into the extension 212. To achieve sealing of the top of the level tube 210 and connection of the dual-ball level switch 220, the level regulating mechanism 200 in this embodiment also includes a connecting assembly 230. The magnetic sensitive rod 221 is connected to the level tube 210 through the connecting assembly 230. The connecting assembly 230 includes a flange 231, a sealing nut 232, and an extension sleeve 233. The flange 231 is located at the opening of the level tube 210. One end of the extension sleeve 233 is sealed, and the other end extends from the flange 231 into the level tube 210 and is fitted onto the magnetic sensitive rod 221. The sealing nut 232 is located between the flange 231 and the extension sleeve 233. Specifically, in this embodiment, the extension sleeve 233 and the sealing nut 232 are threaded together to achieve a detachable connection structure.

[0037] In this embodiment, the dual-ball level switch 220 utilizes the magnetic field change generated by the rise and fall of the magnetic float 222 as the liquid level rises and falls. The liquid level position is detected by a reed switch in the magnetic sensitive rod 221, thereby accurately detecting the real-time position of the liquid level inside the level tube 210. This provides indirect feedback on the liquid level inside the tank 100. Specifically, in this embodiment, the magnetic sensitive rod 221 contains reed switches corresponding to the two magnetic floats. Each reed switch contains two reeds made of soft magnetic material. The magnetic float 222 contains a magnet. When the magnet moves with the magnetic float 222 and approaches the reed switch, the reeds inside the tube are magnetized, attracting or repelling each other, thus opening or closing the circuit. Specifically, in this embodiment, the upper magnetic float 222 is used for high liquid level detection, and the lower magnetic float 222 is used for low liquid level detection. When the liquid level drops below the low liquid level detection point, the magnetic float 222 corresponding to the low liquid level drops due to the decrease in buoyancy. When it approaches the reed switch, its magnetic field causes the contacts inside the reed switch to actuate, thereby generating a change in electrical signal. This change in electrical signal is transmitted to the control system. After receiving the signal, the control system determines that the liquid level is lower than the set low liquid level, and then issues a command to activate the electrically controlled valve at the inlet pipe 110, thereby allowing the medium to be transported from the inlet pipe 110 to the tank 100 to replenish the liquid level. Conversely, as the medium continues to flow in, the liquid level inside the level tube 210 gradually rises. When the liquid level rises to the high liquid level detection point, the magnetic float 222 corresponding to the high liquid level rises due to the increased buoyancy. It can also cause the contact inside the reed switch to act and generate another electrical signal change. After this signal is transmitted to the control system, the control system determines that the liquid level has reached the set high liquid level and then issues a command to stop the closing of the electric control valve body of the inlet pipe 110, while starting the electric control valve body at the drain pipe, thereby controlling the medium liquid level below the high liquid level detection point.

[0038] Furthermore, the dual-ball level switch 220 in this embodiment also includes a plurality of limiting blocks 223 and screws 224. The plurality of limiting blocks 223 are respectively threadedly connected to the screws 224 and are adjustablely mounted on the magnetic sensitive rod 221 by the screws 224. The magnetic float 222 is disposed between two adjacent limiting blocks 223 so that its position on the magnetic sensitive rod 221 can be adjusted by the limiting blocks 223.

[0039] In this embodiment, the upper magnetic float 222 can be set at a liquid level of 85-95% in the tank 100, and the lower magnetic float 222 can be set at a liquid level of 65-80% in the tank 100. During actual use, the operator can adjust the connection position of the corresponding magnetic float 222 according to actual needs, thereby ensuring that there is at least 65% liquid inside the tank 100, and thus ensuring that the liquid inside the tank 100 meets the requirements for normal use.

[0040] In addition, since the liquid level tube 210 is internally sealed, the liquid level regulating mechanism 200 in this embodiment includes a second exhaust valve 240, which is connected to the top of the liquid level tube 210. Specifically, the second exhaust valve in this embodiment is also configured as an automatic exhaust valve, and its operating principle is the same as that of the first exhaust valve 131, which will not be elaborated here.

[0041] It should be noted that this embodiment also possesses the functional characteristics of an expansion tank. Based on the upper limit of the liquid level in the tank 100 as defined in this application, a certain space is reserved at the top of the tank 100 to accommodate gas. Therefore, when the fluid pressure in the pipeline increases, the gas inside the tank 100 will first be compressed due to its compressibility, thereby absorbing some of the pressure and effectively mitigating the rapid increase in system pressure. Furthermore, in special circumstances, even if the pipeline pressure forces the internal pressure of the tank 100 to continuously increase and exceed the set threshold of the first exhaust valve 131, the automatic exhaust valve 131 can release the excess pressure inside the tank 100 through gas leakage, thereby ensuring that the internal pressure of the tank 100 remains within a safe and controllable range and preventing damage to the entire system due to excessive pressure.

[0042] Conversely, when the system pressure decreases, the gas that was originally compressed inside the tank 100 begins to expand, thereby supplementing the insufficient system pressure to a certain extent. At the same time, the medium inside the tank 100 undergoes a change of state during the pressure reduction process, with some liquid medium evaporating and turning into gas, thereby further compensating for the pressure loss inside the system and providing additional support for the stability of the system pressure. Example 2

[0043] This embodiment provides another self-regulating pressure-stabilizing buffer tank with the same main structure and operating principle as Embodiment 1. The only difference in this embodiment is the location of the liquid level regulating mechanism 200. Specifically, the liquid level pipe 210 in this embodiment is configured as a straight pipe extending along the height direction of the tank 100, passing through the top of the tank 100 and into the interior of the tank 100. This reduces the overall volume of the self-regulating pressure-stabilizing buffer tank, making it suitable for smaller operating environments.

[0044] In summary, the self-regulating pressure-stabilizing buffer water tank of this utility model uses a liquid level regulating mechanism 200 to detect and automatically adjust the liquid level of the medium inside the tank 100 in real time, thereby ensuring the stability of the liquid volume inside the tank 100. This fundamentally avoids system risks or failures caused by excessively high or low liquid levels. In particular, this application uses a dual-ball liquid level switch 220 to automatically adjust the inlet pipe 110 and outlet pipe 120 in real time, thus giving it advantages such as fast response speed, high degree of automation, and precise control, and it has broad application prospects in this industry.

[0045] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A self-regulating, pressure-stabilizing buffer water tank, characterized in that: include: The tank body is filled with a medium, and its side wall is provided with an inlet pipe and an outlet pipe. The inlet pipe and the outlet pipe are respectively connected to the inside of the tank body, and both are provided with an electrically controlled valve body. A liquid level regulating mechanism includes a liquid level tube and a dual-ball liquid level switch. The liquid level tube is connected to the tank body, and at least a portion of the liquid level tube extends upward along the height direction of the tank body. The dual-ball liquid level switch is disposed in the liquid level tube and includes a magnetic sensitive rod and two magnetic floats. The magnetic sensitive rod is connected to the electrically controlled valve body, and the two magnetic floats are spaced apart and pass through the magnetic sensitive rod. The liquid level of the medium is located between the two magnetic floats.

2. The self-regulating pressure-stabilizing buffer water tank according to claim 1, characterized in that: The upper magnetic float is positioned at a liquid level of 85-95% of the tank volume, while the lower magnetic float is positioned at a liquid level of 65-80% of the tank volume.

3. The self-regulating pressure-stabilizing buffer water tank according to claim 1, characterized in that: The liquid level regulating mechanism further includes a connecting assembly. The magnetic rod is connected to the liquid level tube through the connecting assembly. The connecting assembly includes a flange, a sealing nut, and an extension sleeve. The flange is located at the opening of the liquid level tube. One end of the extension sleeve is sealed, and the other end passes through the flange into the liquid level tube and is sleeved to connect the magnetic rod. The sealing nut is located between the flange and the extension sleeve.

4. The self-regulating pressure-stabilizing buffer tank according to claim 1, characterized in that: The dual-ball level switch also includes multiple limiting blocks and screws. The multiple limiting blocks are respectively connected to the magnetic sensitive rod body by the screws. The magnetic float is disposed between two adjacent limiting blocks so that its position on the magnetic sensitive rod body can be adjusted by the limiting blocks.

5. The self-regulating pressure-stabilizing buffer water tank according to claim 1, characterized in that: The liquid level tube is disposed outside the tank body and includes a bent portion and an extension portion. One end of the bent portion is connected to the tank body, and the other end is bent toward the top of the tank body. The extension portion is connected to the bent portion and extends along the height direction of the tank body. The dual-ball liquid level switch is disposed inside the extension portion.

6. The self-regulating pressure-stabilizing buffer water tank according to claim 1, characterized in that: The liquid level tube is configured as a straight tube extending along the height direction of the tank, passing through the top of the tank and into the interior of the tank.

7. The self-regulating pressure-stabilizing buffer water tank according to claim 1, characterized in that: The tank includes a pressure relief assembly, which is connected to the tank and includes a first vent valve, a safety valve, and a pressure gauge, wherein the safety valve is signal-connected to the pressure gauge.

8. The self-regulating pressure-stabilizing buffer water tank according to claim 1, characterized in that: The liquid level regulating mechanism includes a second vent valve, which is connected to the top of the liquid level pipe.

9. The self-regulating pressure-stabilizing buffer water tank according to claim 1, characterized in that: The inlet pipe passes through and connects to the tank body. Its end located outside the tank body is connected to the electrically controlled valve body, and its end located inside the tank body is bent toward the top of the tank body. The outlet pipe is located below the inlet pipe, passes through and connects to the tank body. Its end located outside the tank body is connected to the electrically controlled valve body, and its end located inside the tank body is bent toward the top of the tank body.

10. The self-regulating pressure-stabilizing buffer tank according to claim 1, characterized in that: The tank also includes lifting lugs, supports, and a drain pipe. The lifting lugs are connected to the top of the tank, the supports support the tank, and the drain pipe passes through and connects to the bottom of the tank, and is equipped with a drain valve.

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