CN102431742B - Full-automatic adjustable drain valve - Google Patents

Abstract

A fully automatic adjustable drainage valve, comprising a valve body on the bottom of the valve, a valve cover with an exhaust pipe installed on the upper end of the valve body, an oil discharge pipe connected to the valve body on the upper side wall of the valve body, a side The water inlet pipe connected to the lower part of the wall and the valve body is provided on the bottom of the valve with a sewage valve sewage pipe, and is provided on the bottom of the valve with a drain valve on the drain pipe. The drain valve is provided with a guide rod equipped with a floating ball. On the vertical rod at the bottom of the valve, a rod sleeve is set up on the vertical rod, and a guide rod sleeve positioned under the liquid level adjusting nut is arranged on the guide rod. One end in the diameter direction of the floating ball is provided with a connecting rod connected with the casing of the vertical rod, and the other end is provided with a connecting rod connected with the casing of the guide rod. The drainage valve of the present invention is as follows: a valve seat is set on the drain pipe at the bottom of the valve, a spring support ring is set on the screw rod on the valve bottom, a valve is set at the lower end of the guide rod passing through the spring support ring, and one end of the spring is connected with the guide rod located on the guide rod. The spring seat under the spring seat adjusting nut on the rod is lapped, and the other end is lapped with the spring support ring.

Description

Fully automatic adjustable drain valve

technical field

The invention belongs to the technical field of accessories used in containers for storing or transporting objects or materials, and in particular relates to a drain valve of an oil storage tank.

Background technique

During the storage of oil products, a certain amount of bottom water is often stored at the bottom of the oil tank. If it is not discharged in time, it will not only reduce the utilization rate of the oil tank, but also cause corrosion to the bottom of the oil tank and affect the oil tank. service life. At present, the accumulated water at the bottom of the oil tank is generally discharged manually. Because the manual discharge operation is not only labor-intensive, but also because of inaccurate operation, the oil in the oil tank is released, resulting in waste.

In the technical field of oil storage tank drainage devices, several automatic or semi-automatic oil storage tank drainage devices have been developed at home and abroad. The patent application number is 200920310310.8, the utility model patent with the invention name "automatic drainer for oil storage tank", the patent application number is 01217408.4, the utility model patent with the invention name "oil storage tank automatic water cutter", the patent application No. 03212165.2, and the title of the invention is "A Fully Automatic Water Cutter for Oil Storage Tanks". The above-mentioned patents have technical problems such as complex structure, low reliability, and high production cost. Their common disadvantage is that the bottom water is continuously discharged. The variability of water inlet conditions causes the drain valve and the buoy to reach a balanced state, which cannot form a one-time discharge clean or self-closing situation, which affects the use of the oil storage tank. At the same time, it is not easy to adjust the drain valve at any time according to the different storage media. Regulation, many of the above problems have restricted its application in the field of oil storage tank drainage.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned drainage device of the oil storage tank, and provide a fully automatic adjustable drainage valve with reasonable design, simple structure, good drainage performance and automatic adjustment.

The technical solution adopted to solve the above technical problems is: it includes a valve body arranged on the valve bottom, a valve cover with an exhaust pipe installed on the upper end of the valve body, and an exhaust pipe connected to the valve body on the upper side wall of the valve body. The oil pipe, the water inlet pipe connected to the lower part of the side wall of the valve body and the valve body, the sewage pipe connected to the valve body on the bottom of the valve, the sewage discharge valve is arranged on the sewage pipe, and the drainage valve on the drain pipe is arranged on the valve bottom , the drainage valve is provided with a guide rod with a suspension, and it also includes a vertical rod arranged on the bottom of the valve, and a vertical rod casing that can move up and down is arranged on the vertical rod. The guiding rod of the present invention is provided with a guiding rod casing under the liquid level adjusting nut. The suspension of the present invention is a floating ball, one end of the floating ball in the diameter direction is provided with a connecting rod connected with the vertical rod sleeve 5, and the other end is provided with a connecting rod connected with the guide rod sleeve. The drain valve of the present invention is as follows: a valve seat is arranged on the drain pipe at the bottom of the valve, a spring supporting ring is arranged on the screw rod arranged on the valve bottom, a valve is arranged at the lower end of the guide rod passing through the spring supporting ring, and one end of the spring is connected to the The spring seat arranged under the spring seat adjusting nut on the guide rod overlaps, and the other end overlaps with the spring supporting ring.

There are two vertical rods arranged on the bottom of the valve in the present invention, and the two vertical rods and the guide rods are arranged in the same plane. The floating ball of the present invention has a left floating ball and a right floating ball, connecting rods are arranged at both ends of the left floating ball in the diameter direction, and the left end of the left connecting rod on the left floating ball is arranged on the vertical rod bushing on the left vertical rod , the right end of the right connecting rod on the left floating ball is set on the guide rod sleeve, the two ends of the right floating ball in the diameter direction are provided with connecting rods, and the left end of the left connecting rod on the right floating ball is set on the guide rod sleeve, The right end of the right connecting rod on the right floating ball is arranged on the vertical rod bushing on the right vertical rod.

The left floating ball and the right floating ball of the present invention are hollow spheres.

The quality and volume of the left floating ball and the right floating ball of the present invention are the same.

The valve of the present invention is a rubber valve, and the valve seat is a rubber valve seat.

In the present invention, two floating balls are installed on the guide rod, and a valve is installed at the lower end of the guide rod, and the valve and the valve seat on the valve bottom are opened or closed to discharge the water in the valve body from the oil storage tank, and the oil flows back through the oil discharge pipe. In the oil storage tank, the height of the oil-water boundary can also be adjusted according to the needs, which can achieve the effect of draining the bottom water at one time. Using the difference in density between the floating ball itself and oil and water, the lifting and lowering of the floating ball is controlled, especially using the unique certainty of the movement process of the spring seat, that is, the two points of either the bottom or the top, so that the rubber ball valve connected to it has no The half-open or half-close process eliminates the possible problem of the balance state of the incoming and outgoing liquids. For liquids with different densities or changes in oil ratio, the height of the drain line can be determined by adjusting the liquid level adjustment nut, and the height of the water storage can be controlled. By adjusting the spring seat control nut, the displacement of the spring seat and the upward and downward force can be easily adjusted, so as to control the opening and closing process of the rubber ball valve connected to it and the size of the sealing force. The double floating ball and symmetrical guide sleeve structure can not only increase the buoyancy it receives, but also increase the upward pulling force of the floating ball on the spring seat, and at the same time make the floating ball move up and down more smoothly, and it is not easy to jam. Utilizing the characteristics of the non-linear relationship between spring seat movement and buoyancy, the rubber ball valve produces accelerated movement when opening and closing up and down, increasing the opening and closing speed and force, improving the sealing material, and enhancing the overall sensitivity of the drain valve.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of the present invention.

FIG. 2 is a schematic diagram of the connection between the spring 17 and the spring support ring 15 in FIG. 1 .

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to these embodiments.

Example 1

In Figures 1 and 2, the fully automatic adjustable drain valve of this embodiment consists of an oil discharge pipe 1, a valve body 2, a valve cover 3, a vertical rod 4, a vertical rod casing 5, a connecting rod 6, a left floating ball 7, and a guide Rod casing 8, liquid level adjusting nut 9, guide rod 10, right floating ball 11, exhaust pipe 12, water inlet pipe 13, valve bottom 14, spring supporting ring 15, screw rod 16, spring 17, spring seat adjusting nut 18, Drain pipe 19, valve seat 20, valve 21, spring seat 22, blowdown valve 23, blowdown pipe 24 are connected to form.

The valve bottom 14 is fixedly connected and installed on the bottom of the oil storage tank with a threaded fastening piece, and the valve body 2 is fixedly connected with a threaded fastening piece on the valve bottom 14, and the upper end of the valve body 2 is fixedly connected with a threaded fastening piece There is a valve cover 3, and an exhaust pipe 12 is installed on the valve cover 3 through threaded connection. The exhaust pipe 12 communicates with the inside of the valve body 2, and the air and oil gas in the valve body 2 are discharged from the exhaust pipe 12. The upper part of the left side is welded with an oil discharge pipe 1, and the oil discharge pipe 1 communicates with the inside of the valve body 2; Located at the bottom of the oil storage tank, the water at the bottom of the oil storage tank enters into the valve body 2 from the water inlet pipe 13 . A sewage discharge pipe 24 is installed on the valve bottom 14 through a threaded connection, and the sewage discharge pipe 24 communicates with the inside of the valve body 2. A sewage discharge valve 23 is installed on the sewage discharge pipe 24 through a threaded connection. The blowdown valve 23 discharges to the outside of the valve body 2 . The central position of the valve bottom 14 is provided with a drainpipe 19 through screw connection, and a valve seat 20 is installed on the drainpipe 19. The valve seat 20 of this embodiment is a rubber valve seat, and the top of the center hole on the valve bottom 14 is connected with a screw rod 16. The spring support ring 15, the spring support ring 15 can move up and down on the screw rod 16.

The lower end of the guide rod 10 passes through the spring support ring 15 and is installed with a valve 21 through threaded connection. The valve 21 of the embodiment is a rubber valve, and the valve 21 is just above the valve seat 20. The drain pipe 19 can be opened by moving the guide rod 10 up and down. or off. The bottom of the guide rod 10 is connected with a spring seat adjusting nut 18 and is equipped with a spring seat 22. One end of the spring 17 overlaps with the spring seat 22, and the other end overlaps with the spring support ring 15. Three springs 17 are installed on the spring support ring 15. , 3 springs 17 are evenly distributed. Valve 21, valve seat 20, spring seat adjusting nut 18, spring support ring 15, screw rod 16, spring seat 22, spring 17 constitute the drain valve 21 of the present embodiment. The upper part of the guide rod 10 is equipped with a guide rod sleeve 8 with a liquid level adjusting nut 9, the guide rod sleeve 8 can move up and down on the guide rod 10, and the position of the liquid level adjustment nut 9 on the guide rod 10 can be adjusted to determine the position of the guide rod. The uppermost position of the bushing 8 on the guide rod 10 . Two vertical rods 4 are installed on both sides of the valve bottom 14 in the valve body 2 through threaded connection, the two vertical rods 4 and the guide rod 10 are arranged in the same plane, and each vertical rod 4 is covered with a vertical rod sleeve 5, and the vertical rod The casing 5 can move up and down on the vertical rod 4, and the two ends of the diameter direction of the left floating ball 7 are connected with a connecting rod 6 through a threaded connection, and the left end of the left connecting rod 6 on the left floating ball 7 is installed on the left vertical rod through a threaded connection. On the vertical rod casing 5 on the rod 4, the right end of the right side connecting rod 6 on the left floating ball 7 is installed on the guide rod casing 8 through threaded connection, and the two ends of the right floating ball 11 in the diameter direction are installed with connecting rods through threaded connection. Rod 6, the left end of the left connecting rod 6 on the right floating ball 11 is installed on the guide rod casing 8 through threaded connection, and the right end of the right connecting rod 6 on the right floating ball 11 is installed on the right vertical rod 4 through threaded connection On the vertical pole casing 5. Left float 7 and right float 11 have the same shape, volume and weight.

The working principle of the present invention is as follows:

Before oil and water enter, the left floating ball 7 and the right floating ball 11 are in the lowest position under the pressure of gravity and spring 17, that is, the valve 21 will close the drain pipe 19. When the oily water at the bottom of the oil storage tank enters the valve body 2 through the water inlet pipe 13, if the oil-water is not separated, that is, when there is no oil-water interface, the drain pipe 19 is still in the position of the water because the weight of the two balls is still greater than the buoyancy given by the liquid. Disabled. The liquid level continues to rise, at this time, the oil and water are continuously separated, and an oil-water interface appears. When the oil is immersed in the left floating ball 7 and the right floating ball 11, because the weight of the left floating ball 7 and the right floating ball 11 is greater than the buoyancy, the left floating ball 7 And right float 11 can not float up, and drainpipe 19 is still in closed state. If the oil level continues to rise at this moment, the floating oil on the water surface can flow into the oil storage tank from the oil discharge pipe 1. During the continuous rising of the oil-water interface, the rising water level gradually began to submerge the left floating ball 7 and the right floating ball 11. Due to the gravity of the floating ball 11, the left floating ball 7 and the right floating ball 11 start to rise. Position adjustment nut 9, guide rod 10 is moved upwards, valve 21 is lifted, drain pipe 19 is opened, and the water at the bottom of valve body 2 is discharged from drain pipe 19. As the water level drops, the left floating ball 7 and the right floating ball 11 also descend, and the guide rod casing 8 reaches the spring seat adjusting nut 18, pushing the spring seat 22 to move downward, and the valve 21 moves downward to the valve seat 20, Drainage pipe 19 is closed, then enters next circulation process, thereby has realized water level regulation and automatic drainage process.

Claims (1)

1. Full-automatic adjustable drain valve, comprise the valve body on (14) (2) at the bottom of being arranged on valve, be arranged on the valve gap (3) that valve body (2) upper end is equipped with blast pipe (12), be arranged on the oil exit pipe (1) that links in valve body (2) side wall upper part and valve body (2), the water inlet pipe (13) that links in valve body (2) lower sidewall and valve body (2), the blow-off pipe (24) that links in (14) upper and valve body (2) at the bottom of being arranged on valve, be provided with sewage draining valve (23) on blow-off pipe (24), be positioned at the water discharging valve (21) on drainpipe (19) at the bottom of being arranged on valve on (14), the upper guide post (10) that ball float is installed that arranges of water discharging valve (21), it is characterized in that: it also comprise be arranged on valve at the bottom of two vertical rods (4) on (14), vertical rod sleeve pipe moving up and down (5) is set in vertical rod (4), be provided with the guide post sleeve pipe (8) that is positioned under liquid level adjusting nut (9) on described guide post (10), described ball float has left ball float (7) and right ball float (11), the diametric two ends of left ball float (7) are provided with connecting rod (6), on vertical rod sleeve pipe (5) on the left of the left end of left ball float (7) upper left side connecting rod (6) is arranged in vertical rod (4), the right-hand member of the upper right side connecting rod (6) of left ball float (7) is arranged on guide post sleeve pipe (8), the diametric two ends of right ball float (11) are provided with connecting rod (6), the left end of right ball float (11) upper left side connecting rod (6) is arranged on guide post sleeve pipe (8), the right-hand member of the upper right side connecting rod (6) of right ball float (11) is arranged on vertical rod sleeve pipe (5) in right side vertical rod (4), described water discharging valve (21) is: be provided with valve seat (20) on the drainpipe (19) of (14) at the bottom of valve, be provided with spring supporting ring (15) on screw rod at the bottom of being arranged on valve on (2) (16), guide post (10) lower end of passing spring supporting ring (15) is provided with valve (21), and an end of spring (17) overlaps with spring base (22) overlap joint, the other end and the spring supporting ring (15) that are arranged on guide post (10) upper spring seat adjusting nut (18) under.

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