Pneumatic automatic water dispenser

Abstract

This utility model discloses a pneumatic automatic water drainer, including a tank, an inlet component on one side of the tank, a drain component on the other side of the tank, a support leg fixedly connected to the bottom of the tank, and a control component on the tank. Adopting a pneumatic drive design, it requires no power supply, overcoming the safety hazards of electric water drainers in flammable and explosive environments such as coal mines due to leakage and short circuits. It meets the usage specifications for high explosion-proof scenarios, and changes the limitations of traditional equipment with fixed-interval drainage. It can be dynamically adjusted according to actual drainage volume and pipeline pressure. The pneumatic butterfly valves at the inlet and outlet achieve alternating operation through a pneumatic reversing valve, and the one-way valve prevents backflow, solving the problems of backflow or incomplete drainage in existing bidirectional drainage systems. This ensures stable system operation and compensates for the shortcomings of existing equipment in terms of single function and insufficient emergency handling capabilities. Manual operation is possible in case of automatic system failure.

Description

Technical Field

[0001] This utility model relates to the field of automatic water dispenser technology, specifically a pneumatic automatic water dispenser. Background Technology

[0002] In coal mine gas drainage systems, the moisture carried by the gas will condense and accumulate in low-lying areas of the pipeline. If it is not discharged in time, it will lead to a reduction in the pipeline flow area, an increase in drainage resistance, or even blockage of the pipeline, affecting the system's operating efficiency and posing safety hazards.

[0003] Currently, there are two main types of water discharge devices on the market: manual and electric. Manual devices rely on manual timed operation, which can lead to problems such as high labor intensity and untimely drainage. Electric devices rely on electric power, which poses safety hazards in the flammable and explosive environment of coal mines. They also have complex structures, high maintenance costs, and are susceptible to malfunctions due to impurities. In addition, some water discharge devices based on electronic liquid level sensing are prone to signal interference and malfunction in the complex electromagnetic environment of coal mines. Automatic water discharge devices with float ball structures may also fail to operate properly due to the float ball getting stuck in the water due to a large amount of impurities. Utility Model Content

[0004] The purpose of this utility model is to provide a pneumatic automatic water drainer to solve the problems of high labor intensity and untimely drainage caused by manual water drainers and high maintenance costs caused by electric water drainers, as mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic automatic water discharge device, including a tank, and further including a water inlet assembly disposed on one side of the tank, a drain assembly disposed on the other side of the tank, a support leg fixedly connected to the bottom of the tank, a control assembly disposed on the tank, an air source filter device disposed on the control assembly, the water inlet assembly and the drain assembly including a flange, fixing bolts, a pneumatic butterfly valve body, a seamless steel pipe, fixing bolts fixedly connected between the flange and the pneumatic butterfly valve body, one end of the seamless steel pipe of the discharge assembly is connected to the bottom of the tank, and the other end is used to discharge water to a designated position, the pneumatic butterfly valve body is mounted on the flange, and the first... One end of the control air pipe and the second control air pipe are connected to the pneumatic butterfly valve body, and the other end is connected to the control component. A control box is installed on the control component. Drain butterfly valve interface A and drain butterfly valve interface B are opened on the control box. Air inlet, water inlet butterfly valve interface A and water inlet butterfly valve interface B are installed. A tee is installed between the air source filter device and the control box. A second pneumatic delay valve and a first pneumatic delay valve are installed inside the control box. A fixed panel is installed on the front of the control box. A control panel is installed on the control box. A manual / automatic switch, a manual drain button and a manual water inlet button are installed on the control panel. A pneumatic reversing valve is installed on the control panel.

[0006] Based on the preferred embodiment of this technical solution, the first pneumatic delay valve is used to control the opening of the drain pneumatic butterfly valve and the closing of the inlet pneumatic butterfly valve, and the second pneumatic delay valve is used to control the closing of the drain pneumatic butterfly valve and the opening of the inlet pneumatic butterfly valve, and the drain / inlet time can be arbitrarily adjusted within a specified time range.

[0007] Based on the preferred embodiment of this technical solution, the gas source filtration device is used to filter impurities from the input gas source to ensure the cleanliness of the gas source.

[0008] Based on the preferred embodiment of this technical solution, the control component also includes a manual / automatic switch and a manual control button, supporting switching between automatic timing and manual button control.

[0009] Based on the preferred embodiment of this technical solution, the tank body is made of high-strength carbon steel, the inner wall is treated with anti-rust galvanizing, and four support legs are welded to the bottom.

[0010] Based on the preferred embodiment of this technical solution, the seamless steel pipe is divided into an inlet pipe and a drain pipe, both of which are made of seamless steel pipes, and the inlet pipe and the drain pipe are of different lengths.

[0011] Based on the preferred embodiment of this technical solution, a number of fixing bolts are provided, and the number of fixing bolts are evenly distributed between the flange and the pneumatic butterfly valve body.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. Adopting a pneumatic drive design, it requires no power supply, overcoming the shortcomings of electric water dischargers in flammable and explosive environments such as coal mines, which may cause safety accidents due to leakage and short circuits. It meets the usage specifications for high explosion-proof scenarios and changes the limitations of traditional equipment that drains at fixed time intervals. It can be dynamically adjusted according to the actual drainage volume and pipeline pressure. The pneumatic butterfly valves at the inlet and outlet achieve alternating operation through pneumatic reversing valves, and the one-way valve prevents water backflow. It solves the problems of water backflow or incomplete drainage in the existing technology when draining in both directions, ensuring stable system operation and making up for the shortcomings of existing equipment in terms of single function and insufficient emergency handling capabilities. Manual operation is possible in case of automatic system failure.

[0013] 2. An air source filtration device is added to filter impurities from the input air source. The water storage tank is made of high-strength corrosion-resistant material, which improves the problem of valve or sensor malfunction caused by impurities clogging the traditional equipment and reduces the frequency of maintenance. The tank body is made of high-strength corrosion-resistant metal material, which solves the problems of complex structure and high installation environment requirements of electric water dischargers and is suitable for the humid and dusty environment underground. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of one embodiment of the pneumatic automatic water dispenser of this utility model; Figure 2This is a schematic diagram of the control component structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the control component of this utility model; Figure 4 This is a schematic diagram of the control box structure of this utility model; Figure 5 This is a schematic diagram of the structure during the operation of this utility model; Figure 6 This is a schematic diagram of the water inlet component of this utility model.

[0015] In the diagram: 1. Tank body; 2. Water inlet assembly; 3. Drainage assembly; 4. Control assembly; 5. Air source filter device; 6. Support leg; 401. Control box; 402. Air inlet; 403. Water inlet butterfly valve interface A; 404. Water inlet butterfly valve interface B; 405. Drainage butterfly valve interface A; 406. Drainage butterfly valve interface B; 407. First pneumatic delay valve; 408. Second pneumatic delay valve; 409. Pneumatic directional valve; 410. T-junction; 411. Manual / automatic switch; 412. Manual water inlet button; 413. Manual drain button; 414. Fixed panel; 415. Control panel; 801. Flange; 802. Fixing bolt; 803. Pneumatic butterfly valve body; 804. Seamless steel pipe. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Pneumatic automatic water drainers are indispensable key equipment in coal mine gas drainage systems and industrial pneumatic systems. They are mainly used to automatically remove condensate from pipelines and prevent gas leakage, thereby ensuring the stable operation of gas drainage and pneumatic systems, extending equipment service life, and reducing energy consumption. Working principle In simple terms, the working principle of a pneumatic automatic water drainer is to be driven by a clean air source to automatically complete the cycle of "water storage" and "water drainage", and it can also be manually operated in an emergency.

[0018] First, the air source passes through a filtration device to remove impurities, resulting in clean air that enters the core control component. The control component contains two "timer switches" (pneumatic delay valves) and one "reversing switch" (pneumatic reversing valve): one timer switch opens the drain valve and closes the inlet valve (called an opening delay valve), while the other closes the drain valve and opens the inlet valve (called a closing delay valve). The timing can be adjusted from 1 to 300 seconds.

[0019] In automatic mode, when the delay timer is off, the reversing valve controls the inlet valve to open and the drain valve to close, allowing water from the gas pipe to flow into the tank for storage. When the set inlet time is up, the reversing valve automatically switches back on, activating the delay timer. At this point, the inlet valve closes and the drain valve opens, draining the water from the tank. After the drain time is up, the system switches back to inlet mode, repeating this cycle automatically and at set times.

[0020] If the automatic system malfunctions, it can be switched to manual mode, allowing direct control of the inlet and outlet valves via buttons for emergency drainage or water storage. Additionally, the air source filtration device filters out impurities, preventing valve blockage and ensuring stable operation of the equipment in the downhole environment.

[0021] Core Structure The pneumatic automatic water drainer uses a tank as the main storage component, and is equipped with an inlet component, a drain component, a control component, and an air source filter to form the core structure. The inlet and drain components are connected to the inlet and drain pipelines via pneumatic butterfly valves, respectively. The control component is the core, containing a control box, an air source filter, two pneumatic delay valves (delay range 1-300 seconds, controlling the opening and closing of the drain / inlet butterfly valves respectively), and a two-position five-way pneumatic directional valve, achieving timed automatic control through air circuit connections.

[0022] Applicable Scenarios Pneumatic automatic water drainers are mainly suitable for coal mine gas drainage systems, especially for the automatic removal of water accumulated in underground gas pipelines or equipment. They do not require electricity and operate solely on a pneumatic power source, making them suitable for the flammable and explosive high-gas environment underground, meeting high explosion-proof requirements. The drainage and water inlet times are adjustable, allowing them to cope with complex working conditions such as fluctuations in drainage volume, and are adaptable to harsh environments with high humidity and dust. They are also widely used in industrial automated production lines, food processing, pharmaceutical manufacturing, cold regions, and textile printing, effectively removing moisture from compressed air, preventing pipeline blockage or equipment failure, and ensuring stable system operation.

[0023] performance advantages The pneumatic automatic water drainer boasts significant performance advantages: pneumatic drive eliminates the need for electricity, completely eradicating electrical hazards in flammable and explosive environments and meeting high explosion-proof standards; a pneumatic delay valve allows for adjustable drainage / intake times from 1-300 seconds, adapting to complex working conditions; dual valves work in conjunction with a one-way valve to prevent backflow, achieving a drainage efficiency exceeding 95%; it supports both manual and automatic modes to ensure continuous emergency response; 5μm air filtration reduces impurities, lowering maintenance costs by over 50%. Furthermore, its high degree of automation saves manpower, efficient drainage reduces malfunctions, excellent sealing prevents leakage and saves energy, its compact structure makes it easy to install, it has a wide applicable pressure range and strong versatility, the tank is durable for over 5 years, and it saves approximately 3000 yuan in electricity costs annually, making it both energy-efficient and reliable.

[0024] Installation and maintenance During installation, the pneumatic automatic drain valve should be installed vertically at the lowest point of the pipeline to ensure that condensate can be smoothly collected in the drain valve. The installation location should be easily accessible for inspection and maintenance, while avoiding environmental factors such as direct sunlight, high-temperature radiation, and severe vibration. When connecting pipelines, ensure that the joints are well sealed to prevent air leakage. For routine maintenance, regularly check the working status of the drain valve, observe whether the drainage is normal, and check for any air leaks. If drainage is obstructed, it may be due to a blockage at the drain outlet, which should be cleaned promptly. For easily damaged parts such as the sealing ring, regularly check their wear and replace them if damaged. In addition, regularly clean the drain valve to remove internal impurities and dirt to ensure its proper functioning. Market Development and Trends With the continuous development of industrial automation, pneumatic systems are being used more and more widely, leading to a growing demand for pneumatic automatic water dispensers. Currently, the market offers a wide variety of pneumatic automatic water dispensers with varying performance characteristics. In the future, this equipment will develop towards greater intelligence, higher efficiency, and energy conservation. Some manufacturers have begun developing intelligent water dispensers with sensors, capable of real-time monitoring of water level and pressure, and enabling remote monitoring and control through IoT technology, further improving the automation level and reliability of the equipment. Simultaneously, the application of new materials will continuously enhance the performance and lifespan of water dispensers, meeting the high-end needs of different industries. In summary, pneumatic automatic water drainers play a vital role in coal mines and industrial production, and their performance directly affects the operational efficiency and stability of gas drainage / pneumatic systems. Understanding their working principles, structural characteristics, applicable scenarios, and maintenance methods is crucial for the correct selection and use of this equipment.

[0025] Please see Figure 1-6This utility model provides an embodiment: it includes a tank body 1, a water inlet assembly 2 disposed on one side of the tank body 1, a drainage assembly 3 disposed on the other side of the tank body 1, a support leg 6 fixedly connected to the bottom of the tank body 1, a control assembly 4 disposed on the tank body 1, and an air source filter device 5 disposed on the control assembly 4. The water inlet assembly 2 and the drainage assembly 3 include a flange 801, fixing bolts 802, a pneumatic butterfly valve body 803, a seamless steel pipe 804, and fixing bolts 802 fixedly connected between the flange 801 and the pneumatic butterfly valve body 803. One end of the seamless steel pipe 804 of the drainage assembly is connected to the bottom of the tank body 1, and the other end is used to discharge water to a designated position. The pneumatic butterfly valve body 803 is installed on the flange 801, and one end of the first control air pipe and the second control air pipe are connected to the pneumatic butterfly valve body 801. The system includes: a control box 401 connected to the control component 4 at one end; a drain butterfly valve interface A405 and a drain butterfly valve interface B406 on the control box 401; an air inlet 402; a water inlet butterfly valve interface A403 and a water inlet butterfly valve interface B404 on the control box 401; a tee 410 between the air source filter device 5 and the control box 401; a second pneumatic delay valve 408 and a first pneumatic delay valve 407 inside the control box 401; a fixed panel 414 on the front of the control box 401; a control panel 415 on the control box 401; a manual / automatic switch 411 on the control panel 415; a manual drain button 413 and a manual water inlet button 412 on the control panel 415; and a pneumatic reversing valve 409 on the control panel 415. By scientifically combining core components such as tank 1, water inlet assembly 2, drainage assembly 3, and control assembly 4, and using the robust connection of flange 801 and fixing bolts 802, the close cooperation between the components is ensured. This not only improves the overall structural strength of the device and enables it to withstand vibration and impact in complex industrial environments, but also facilitates subsequent component replacement and maintenance. At the same time, the reasonable layout of various interfaces and pneumatic reversing valve 409 in control assembly 4 ensures efficient transmission of control gas, allowing the pneumatic butterfly valve body 803 to respond promptly to opening and closing actions. The manual / automatic switch 411 further allows the device to flexibly switch between unattended automatic mode and emergency manual mode, greatly enhancing the practicality and ease of operation of the device.

[0026] Please see Figure 4 A further solution based on this embodiment is as follows: the first pneumatic delay valve 407 is used to control the opening of the drain pneumatic butterfly valve and the closing of the inlet pneumatic butterfly valve, and the second pneumatic delay valve 408 is used to control the closing of the drain pneumatic butterfly valve and the opening of the inlet pneumatic butterfly valve. The drain / inlet time can be arbitrarily adjusted within a specified time range. Through the precise coordinated control of the first pneumatic delay valve 407 and the second pneumatic delay valve 408, the working periods of draining and inlet are strictly divided, avoiding the water flow disturbance and pressure fluctuation in the tank 1 caused by the simultaneous operation of the two.

[0027] Please see Figure 4 A further solution based on this embodiment is as follows: the air source filter device 5 is used to filter impurities from the input air source to ensure the cleanliness of the air source. Through the deep filtration of the input air source by the air source filter device 5, impurities such as moisture, oil, and dust contained in the air source can be effectively removed, preventing these impurities from entering the interior of precision pneumatic components such as the pneumatic butterfly valve body 803, the first pneumatic delay valve 407, and the second pneumatic delay valve 408.

[0028] Please see Figure 2-4 A further solution based on this embodiment is as follows: the control component 4 also includes a manual / automatic switch and a manual control button, supporting switching between automatic timing and manual button control. Through the manual / automatic switch 411, manual drain button 413, and manual water inlet button 412 on the control component 4, the device can autonomously complete the water discharge operation in the automatic timing mode during normal production, reducing the workload of manual inspection and operation, and lowering labor costs.

[0029] Please see Figure 1 A further solution based on this embodiment is as follows: the tank body 1 is made of high-strength carbon steel, the inner wall is treated with anti-rust galvanizing, and four support legs 6 are welded to the bottom. By using high-strength carbon steel to make the tank body 1, the pressure resistance and structural stability of the tank body 1 are significantly improved, enabling it to withstand a large liquid weight and external impact force, and meet the needs of large-volume liquid storage; the anti-rust galvanizing treatment of the inner wall of the tank body 1 can effectively resist the corrosive effect of the liquid.

[0030] Please see Figure 6 A further solution based on this embodiment is that the welded pipes of the water inlet component 2 and the drainage component 3 are made of seamless steel pipe. Its seamless and high-strength material characteristics ensure the pressure resistance and sealing of the pipes during the water inlet and drainage process, effectively preventing liquid leakage.

[0031] Working principle: In the initial state, the control port 1 of the pneumatic reversing valve 409 is connected to the air source, and the P port is connected to the B port. After the air source is delayed by the second pneumatic delay valve 408, it pushes the water inlet pneumatic butterfly valve body 803 to open and the drain pneumatic butterfly valve body 803 to close. Water accumulated in the gas pipeline flows into tank 1. The delay time can be adjusted by rotating the black knob of the delay valve. Clockwise rotation increases the delay time, and counterclockwise rotation decreases it. When the water inlet delay ends, the pneumatic reversing valve 409 automatically switches, the control port 2 is connected to the air source, and the P port is connected to the A port. This pushes the drain pneumatic butterfly valve body 803 to open and the water inlet pneumatic butterfly valve body 803 to close, draining the water accumulated in tank 1. The drain delay time is also adjusted by the knob. The water inlet and drain stages cycle through the set time to achieve automatic timed water discharge.

[0032] Turn the manual / automatic switch 411 inside the control box 401 to the "manual" position, press the manual drain button 413, the drain pneumatic butterfly valve body 803 opens, and the inlet pneumatic butterfly valve body 803 closes, forcing drainage; press the manual inlet button 412, the inlet pneumatic butterfly valve body 803 opens, and the drain pneumatic butterfly valve body 803 closes, stopping drainage and starting water intake. The manual mode is used for emergency operation during equipment debugging or automatic system failure.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Pneumatic automatic water drainer comprising a tank (1), characterized in that: It also includes a water inlet assembly (2) set on one side of the tank (1), a drainage assembly (3) set on the other side of the tank (1), a support leg (6) fixedly connected to the bottom of the tank (1), a control assembly (4) set on the tank (1), and an air source filter device (5) set on the control assembly (4). The water inlet assembly (2) and the drainage assembly (3) include a flange (801), a fixing bolt (802), a pneumatic butterfly valve body (803), a seamless steel pipe (804), a fixing bolt (802) fixedly connected between the flange (801) and the pneumatic butterfly valve body (803), one end of the seamless steel pipe (804) is connected to the bottom of the tank (1), one end of the seamless steel pipe of the drainage assembly is connected to the bottom of the tank, and the other end is used to discharge water to a designated position. The pneumatic butterfly valve body (803) is installed on the flange (801), and one end of the first control air pipe and the second control air pipe are connected to the pneumatic butterfly valve body (803). One end is connected to the other end of the control assembly (4). The control assembly (4) includes a control box (401), a drain butterfly valve interface A (405) and a drain butterfly valve interface B (406) opened on the control box (401), an air inlet (402), a water inlet butterfly valve interface A (403) and a water inlet butterfly valve interface B (404), a tee (410) set between the air source filter device (5) and the control box (401), a second pneumatic delay valve (408) and a first pneumatic delay valve (407) set inside the control box (401), a fixed panel (414) set on the front of the control box (401), a control panel (415) set on the control box (401), a manual / automatic switch (411) set on the control panel (415), a manual drain button (413) and a manual water inlet button (412) set on the control panel (415), and a pneumatic reversing valve (409) set on the control panel (415).

2. The pneumatic automatic water drainer according to claim 1, characterized in that: The first pneumatic delay valve (407) is used to control the opening of the drain pneumatic butterfly valve and the closing of the inlet pneumatic butterfly valve, and the second pneumatic delay valve (408) is used to control the closing of the drain pneumatic butterfly valve and the opening of the inlet pneumatic butterfly valve. The drain / inlet time can be adjusted arbitrarily within the specified time range.

3. The pneumatic automatic water drainer according to claim 1, characterized in that: The gas source filtration device (5) is used to filter impurities from the input gas source to ensure that the gas source is clean.

4. The pneumatic automatic water drainer according to claim 1, characterized in that: The control component (4) also includes a manual / automatic switch and a manual control button, which supports switching between automatic timing and manual button control.

5. The pneumatic automatic water drainer according to claim 1, characterized in that: The tank body (1) is made of high-strength carbon steel, with the inner wall treated with anti-rust galvanizing, and four support legs (6) welded to the bottom.

6. The pneumatic automatic water drainer according to claim 1, characterized in that: The seamless steel pipe (804) is divided into an inlet pipe and a drain pipe, both of which are seamless steel pipes. The inlet pipe and the drain pipe are of different lengths.

7. The pneumatic automatic water drainer according to claim 1, characterized in that: The fixing bolts (802) are provided in a plurality of manner, and the plurality of fixing bolts (802) are evenly arranged between the flange (801) and the pneumatic butterfly valve body (803).

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