A compressed air tank drainage device

Abstract

This utility model discloses a drainage device for a compressed air storage tank, specifically relating to the field of compressed air storage tank drainage technology. It includes a drain pipe installed at the bottom of the tank, with an electric drain valve connected to the front end of the drain pipe. A protective cover is fitted over the drain pipe and the electric drain valve, with the top of the protective cover detachably fixed to the bottom of the tank. Arc-shaped mounting grooves are formed on both sides of the front end of the protective cover, and a heating plate is installed inside each arc-shaped mounting groove. Two baffles are hinged to the front end of the protective cover, both located outside the electric drain valve. This utility model uses an electric drain valve installed on the drain pipe to periodically drain residual moisture from inside the tank, maintaining the dryness of the compressed air inside the tank. The protective cover prevents damage to the drain pipe and electric drain valve due to collision, ensuring proper sealing. Heating the inside of the protective cover with the heating plate prevents the drain pipe and electric drain valve from freezing in cold environments, ensuring normal drainage operation.

Description

Technical Field

[0001] This utility model relates to the field of air tank drainage technology, and more specifically to a compressed air tank drainage device. Background Technology

[0002] Currently, compressed air storage tanks are indispensable auxiliary equipment in the rubber material production process. Their core function is to solve the "imbalance" problem between compressed air supply and production demand, ensuring stable, efficient, and high-quality production. The vulcanizing machine is the core equipment for rubber molding; its actions such as mold closing, pressure holding, and mold opening rely on compressed air. A sudden drop in air pressure may lead to insufficient mold closing pressure, resulting in uneven internal density, air bubbles, or dimensional deviations in the rubber product. Conversely, a sudden increase in air pressure may damage the mold or cause overpressure deformation of the product. The storage tank acts as a "buffer," absorbing pressure fluctuations in the pipeline network and stabilizing the air pressure within the required process range. However, water accumulation at the bottom of the compressed air storage tank can directly corrode the inner wall, causing safety accidents. Therefore, compressed air storage tanks need to be equipped with drainage devices for regular drainage to improve safety during use.

[0003] For example, the prior art disclosure number CN217464052U discloses a compressed air storage tank drainage device. This utility model uses time relays installed on the upper and lower solenoid valves respectively, so that the whole assembly consisting of the top cylinder, the collecting cylinder, and the bottom cylinder can be opened or closed intermittently with the storage tank body under the action of the time relays. That is, the upper solenoid valve controls the valve in the top cylinder to close or the lower solenoid valve controls the valve in the bottom cylinder to close, thereby allowing water inside the storage tank body to fall into the top cylinder, the collecting cylinder, and the bottom cylinder, realizing the collection of water inside the storage tank body and avoiding corrosion of the storage tank body.

[0004] However, the existing technology described above still has the following problems in use: the drain pipe and drain valve are directly exposed, making them susceptible to loosening due to impacts, affecting the sealing of the connection with the tank. Furthermore, in cold environments, the water inside the drain pipe and drain valve is prone to freezing, affecting subsequent drainage work and, in severe cases, affecting the normal use of the tank. Based on this, this utility model provides a compressed air storage tank drainage device with protection and heating functions. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides a compressed air storage tank drainage device. An electric drain valve is installed on the drain pipe to periodically drain residual moisture from inside the tank, maintaining the dryness of the compressed air inside. A protective cover is installed to enclose the drain pipe and the electric drain valve, preventing damage from collisions that could affect the seal. A heating plate is used to heat the inside of the protective cover, preventing the drain pipe and electric drain valve from freezing in cold environments, ensuring normal drainage operation and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a compressed air storage tank drainage device, comprising a drain pipe installed at the bottom of the tank, an electric drain valve connected to the front end of the drain pipe, a protective cover fitted over the outside of the drain pipe and the electric drain valve, the top of the protective cover being detachably fixed to the bottom of the tank, arc-shaped mounting grooves being provided on both sides of the front end of the protective cover, a heating plate being provided inside the arc-shaped mounting grooves, and two baffles being hinged to the front end of the protective cover, both of which are located outside the electric drain valve.

[0007] In a preferred embodiment, both baffles are connected to the protective cover via rotating rods. A motor is fixedly mounted at the rear end of each rotating rod and is fixed to the protective cover. The motor drives the rotating rods to automatically rotate the baffles, thereby automatically opening the baffles without manual operation, making it very convenient to use.

[0008] In a preferred embodiment, a lever is fixedly provided at the front end of each of the two baffles, and the two levers are magnetically attracted together by a magnet and an iron block to improve the stability of the two baffles after they are closed.

[0009] In a preferred embodiment, a fixing plate is fixedly provided at the bottom of the protective cover, and a plurality of evenly distributed fixing holes are provided at the bottom of the fixing plate. The multiple fixing holes on the fixing plate can improve the stability of the fixing plate and the protective cover.

[0010] In a preferred embodiment, two storage holes are provided on both outer walls of the protective cover, and a second fastening bolt is provided inside each of the two storage holes. The protective cover is fixed to the heating plate by the second fastening bolt, which facilitates the subsequent disassembly of the heating plate for inspection and replacement.

[0011] In a preferred embodiment, a thermometer is fixedly installed on the top wall of the protective cover. The thermometer is located behind the electric drain valve, and the temperature inside the protective cover is monitored in real time by the thermometer, which is convenient for staff to check at any time.

[0012] The technical effects and advantages of this utility model are as follows: 1. This utility model adds an electric drain valve to the drain pipe at the bottom of the tank. The electric drain valve periodically drains the residual water inside the tank, thereby maintaining the dryness of the compressed air inside the tank. At the same time, a protective cover is set up to cover the drain pipe and the electric drain valve to prevent them from being damaged by collision and affecting the sealing performance. In addition, the inside of the protective cover is heated by a heating plate to prevent the drain pipe and the electric drain valve from freezing in cold environments, ensuring that the drainage work can be carried out normally.

[0013] 2. By setting two baffles at the front end of the protective cover, the protective cover can be sealed by the two baffles when drainage is not in progress, which can prevent insects and rodents from crawling into the protective cover and affecting the service life of the drainage pipe and electric drainage valve. In addition, the heating plate can be disassembled for inspection and replacement by loosening the second fastening bolt between the protective cover and the heating plate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side sectional view of the protective cover of this utility model; Figure 3 This is a side view of the protective cover of this utility model; Figure 4 This is a schematic diagram of the disassembly of the heating plate of this utility model; Figure 5 This is a cross-sectional view of the protective cover of this utility model.

[0015] The attached diagram is labeled as follows: 1. Tank body; 2. Drain pipe; 3. Electric drain valve; 4. Protective cover; 5. Arc-shaped mounting groove; 6. Heating plate; 7. Baffle; 8. Rotating rod; 9. Motor; 10. Toggle block; 11. Fixing plate; 12. Fixing hole; 13. Storage hole; 14. Second fastening bolt; 15. Thermometer. 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] Refer to the instruction manual appendix Figures 1-5This utility model provides a drainage device for a compressed air storage tank, including a drain pipe 2 installed at the bottom of the tank body 1. The front end of the drain pipe 2 is connected to an electric drain valve 3. The electric drain valve 3 is a device that controls the valve opening and closing via an electric actuator to achieve liquid discharge control and regulation. An electronic timer is matched with the solenoid valve to set the discharge time and interval. After being powered on, the timer controls the solenoid valve coil to be energized, and the solenoid valve opens to drain water. After the set discharge time is reached, the timer controls the coil to be de-energized, and the solenoid valve closes to stop draining water. This cycle repeats to achieve timed automatic drainage.

[0018] The drain pipe 2 and the electric drain valve 3 are fitted with a protective cover 4. The top of the protective cover 4 is detachably fixed to the bottom of the tank body 1. The front sides of the protective cover 4 are provided with arc-shaped mounting grooves 5. The arc-shaped mounting grooves 5 are provided with heating plates 6 inside. The front end of the protective cover 4 is hinged with two baffles 7, which are both located outside the electric drain valve 3.

[0019] The bottom of the protective cover 4 is fixedly provided with a fixing plate 11, and the bottom of the fixing plate 11 is provided with a plurality of evenly distributed fixing holes 12. The fixing plate 11 is provided with a plurality of fixing holes 12, thereby improving the stability of the fixing plate 11 and the protective cover 4.

[0020] In actual use, an electric drain valve 3 is installed on the drain pipe 2 at the bottom of the tank 1. The electric drain valve 3 periodically drains the residual moisture inside the tank 1, thereby maintaining the dryness of the compressed air inside the tank 1. A protective cover 4 is installed on the outside of the drain pipe 2 and the electric drain valve 3 to keep them in place and prevent them from being impacted and affecting the seal. At the same time, the heating plate 6 in the arc-shaped mounting groove 5 heats the inside of the protective cover 4, which can prevent the drain pipe 2 and the electric drain valve 3 from freezing in cold environments and affecting the normal operation of drainage. In addition, when drainage is needed, the two baffles 7 are flipped open to expose the outlet of the electric drain valve 3, and then drainage can be carried out.

[0021] Refer to the instruction manual appendix Figure 1 and Figure 3 Both baffles 7 are connected to the protective cover 4 via rotating rods 8. Motors 9 are fixedly mounted on the rear ends of both rotating rods 8. The motors 9 are fixed to the protective cover 4. The motors 9 drive the rotating rods 8 to rotate the baffles 7 automatically, thereby automatically opening the baffles 7 without manual operation, which is very convenient to use. In actual use, a housing and mounting plate are set on the outside of the motor 9. The housing protects the motor 9, and the bottom of the housing is connected to the top of the fixing plate 11 to improve the stability of the motor 9.

[0022] A lever 10 is fixedly provided at the front end of each of the two baffles 7, and the two levers 10 are magnetically attracted together by a magnet and an iron block.

[0023] Two storage holes 13 are provided on both outer walls of the protective cover 4. A second fastening bolt 14 is provided inside each of the two storage holes 13. The protective cover 4 is fixed to the heating plate 6 by the second fastening bolt 14. The heating plate 6 is fixed by the second fastening bolt 14, which facilitates the subsequent disassembly of the heating plate 6 for inspection and replacement.

[0024] A thermometer 15 is fixedly installed on the top wall of the protective cover 4. The thermometer 15 is located behind the electric drain valve 3. The thermometer 15 is a tool for measuring temperature. It converts temperature changes into observable physical quantities through a specific principle, thereby realizing the quantitative measurement of temperature. The thermometer 15 is used to detect the temperature inside the protective cover 4 in real time, and the detected temperature data can be sent to a remote terminal through a wireless transmitter, so that staff can check it at any time. Since this is a well-known existing technology, it will not be described in detail here.

[0025] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compressed air tank drain device comprising a drain pipe (2) mounted on the bottom of the tank body (1), characterized in that: The front end of the drain pipe (2) is connected to an electric drain valve (3), and a protective cover (4) is fitted on the outside of the drain pipe (2) and the electric drain valve (3). The top of the protective cover (4) is detachably fixed to the bottom of the tank (1). The front sides of the protective cover (4) are provided with arc-shaped mounting grooves (5). The arc-shaped mounting grooves (5) are provided with heating plates (6). The front of the protective cover (4) is hinged with two baffles (7). The two baffles (7) are located outside the electric drain valve (3).

2. A compressed air storage tank drain according to claim 1, characterised in that: Both baffles (7) are connected to the protective cover (4) by rotating rods (8), and motors (9) are fixedly installed at the rear ends of both rotating rods (8). The motors (9) are fixed on the protective cover (4).

3. A compressed air storage tank drain according to claim 1, wherein: Both baffles (7) have fixed paddles (10) at their front ends, and the two paddles (10) are magnetically attracted together by a magnet and an iron block.

4. A compressed air storage tank drain according to claim 1, wherein: The bottom of the protective cover (4) is fixedly provided with a fixing plate (11), and the bottom of the fixing plate (11) is provided with a plurality of evenly distributed fixing holes (12).

5. A compressed air storage tank drain according to claim 1, wherein: The protective cover (4) has two storage holes (13) on both outer walls. The two storage holes (13) are equipped with second fastening bolts (14). The protective cover (4) is fixed to the heating plate (6) by the second fastening bolts (14).

6. A compressed air storage tank drain according to claim 1, wherein: A thermometer (15) is fixedly installed on the top wall of the protective cover (4), and the thermometer (15) is located behind the electric drain valve (3).

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