Pure mechanical leakproof drainer capable of automatically forming water seal without water replenishing

Abstract

The invention discloses a pure mechanical leakproof drainer capable of automatically forming a water seal without water replenishing. The anti-leakage valve comprises a valve body, a water inlet pipe, a flow guide pipe, an anti-leakage assembly, a water outlet pipe, an overflow funnel, a mounting port, a mounting port cover plate, a drain outlet, a drain outlet cover plate and the like. The purpose of timely discharging condensate water in a gas pipe network is achieved by applying buoyancy and gravity according to the lever principle. Meanwhile, the device has the advantages that the device can be used immediately after being installed, water replenishing is not needed, equipment functions can be achieved without an additional power source, the structure is reliable, installation is easy, and maintenance is convenient. And compared with a traditional drainer, the labor intensity of field operators is greatly reduced, and the labor cost of enterprises and factories is reduced.

Description

Technical Field

[0001] The invention discloses a pure mechanical anti-leakage drainer which can automatically form a water seal without water replenishment. The application field is a gas pipeline network, and the drainer is used to timely and safely discharge condensed water and impurities in the gas pipeline network to ensure the normal operation of the gas pipeline network. Background Art

[0002] The existing gas drainer equipment on the market is prone to gas leakage due to insufficient water seal height when dealing with pressure fluctuations in the gas pipeline network, which may lead to safety accidents. Conventional gas drainers need to be filled with water before they are officially put into operation to achieve the designed water seal height; when the water seal of a conventional gas drainer is punctured, the sealing component is in a state of gas seal water, and without external interference, the condensed water in the pipeline network cannot be discharged normally; therefore, manual resetting is often required, or electric devices are used to restore the drainer to a normal working state, accompanied by water replenishment operations. The steps are cumbersome, and there is a high reliance on patrol inspectors, which increases the workload of patrol inspectors. Summary of the invention

[0003] The present invention optimizes and upgrades the shortcomings and defects of previous gas drainers, and provides a pure mechanical anti-leakage drainer that automatically forms a water seal without water replenishment.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a purely mechanical anti-leakage drainer that automatically forms a water seal without water replenishment, including a drainer body, the drainer body including a first chamber, a second chamber and a third chamber; a water inlet pipe and a sealing tube mounting seat are provided at the top of the first chamber of the drainer; the water inlet pipe is provided with an air return hole on the pipe wall located in the first chamber of the drainer; the water inlet pipe is provided with a detection port on the pipe wall located outside the first chamber of the drainer; the sealing tube mounting seat is used to fix the sealing tube, and a guide tube mounting seat is provided on the top of the sealing tube, and a threaded port is processed on the bottom for connecting with the valve seat; the top of the sealing tube is connected to the guide tube to the second chamber.

[0005] The anti-leakage device is composed of a U-shaped connecting plate, a valve seat, a sealing valve plate, a split ring, a connecting rod, a floating ball assembly, a pin 1, and a pin 2; the sealing valve plate is composed of a sealing ring mounting seat, a sealing ring, and a large cylindrical head screw. The valve seat is connected to the bottom of the sealing tube through a thread; the U-shaped connecting plate is welded to the bottom of the sealing tube during assembly; the connecting rod indirectly fixes the sealing valve plate by welding the split ring; the connecting rod is connected to the U-shaped connecting block through pin 1; the connecting rod is connected to the floating ball assembly through pin 2; the sealing valve plate is fixed to the sealing ring by a large cylindrical head screw and a groove machined on the sealing valve plate.

[0006] Two guide pipe mounting seats are arranged on the top of the second chamber of the drainer, and the two mounting seats are respectively connected to the first chamber and the third chamber through two guide pipes.

[0007] A guide pipe mounting seat and a water seal pipe mounting seat are provided on the top of the third chamber of the drainer; a water seal pipe is installed on the outlet pipe mounting seat; an overflow pipe mounting seat is provided on the top of the water seal pipe, and a thread is processed on the bottom of the water seal pipe for connecting a one-way valve.

[0008] The connection between the mounting seats, sealing pipes, water outlet pipes and water seal pipes is bolted and nut connected, and the end faces are sealed with O-rings. The drainer body is provided with an overflow funnel, which is fixed by welding. The overflow funnel is arranged below the water outlet pipe. The wall of each chamber of the drainer is provided with a sewage outlet, and a sewage outlet cover plate is connected to the sewage outlet by bolts; a sewage valve is installed on the sewage outlet cover plate.

[0009] The beneficial effects of the present invention are as follows: compared with traditional drainers on the market, after arriving at the site, the equipment of the present invention only needs a simple air tightness test to be put into operation, and no water replenishment operation is required, which saves manpower and time costs, and also reduces the risk of equipment failure caused by improper water replenishment operation; it is a pure mechanical equipment with reliable structure and convenient maintenance. The equipment function can be realized without human intervention, which greatly improves the drainage efficiency and reliability; the anti-leakage device, the water seal automatically formed in the guide pipe and the water seal in the water seal pipe serve as three lines of defense to strictly ensure the safe and reliable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A cross-sectional view of the present invention

[0011] Figure 2 A top view of the present invention

[0012] Figure 3 The schematic diagram of the structure of the anti-leakage device in the present invention is

[0013] Figure 4 The schematic diagram of the structure of the valve plate in the anti-leakage device of the present invention is

[0014] Description of Reference Numerals

[0015] 1 water inlet pipe, 2 detection port, 3 air return hole, 4 anti-leakage device, 41 U-type connecting plate, 42 valve seat, 43 sealing valve plate, 431 sealing ring mounting seat, 432 sealing ring, 433 large cylindrical head screw, 44 split ring, 45 connecting rod, 46 float assembly, 47 pin 2, 48 pin 1, 5 valve body, 6 sealing pipe mounting seat, 7 sealing pipe, 81 guide pipe 1, 82 guide pipe 2, 9 steam purge port, 10 water outlet, 11 overflow funnel, 12 water seal pipe mounting seat, 13 water seal pipe, 14 one-way valve, 15 guide pipe mounting seat, 16 sewage outlet cover plate, 17 sewage outlet, 18 mounting port cover plate, 19 mounting port, 20 sewage valve specific implementation method

[0016] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 Make the present invention.

[0017] A purely mechanical anti-leakage drainer that automatically forms a water seal without water replenishment, comprising a water inlet pipe 1, a detection port 2, an air return hole 3, an anti-leakage device 4, a valve body 5, a sealing pipe mounting seat 6, a sealing pipe 7, a guide pipe 181, a guide pipe 282, a steam purge port 9, a water outlet pipe 10, an overflow funnel 11, a water seal pipe mounting seat 12, a water seal pipe 13, a one-way valve 14, a guide pipe mounting seat 15, a sewage outlet cover plate 16, a sewage outlet 17, a mounting port cover plate 18, a mounting port 19, and a sewage valve 20.

[0018] The feature is that: the valve body 5 of the drainer is divided into three chambers by a bundle partition, and a water inlet pipe 1 and a sealing pipe mounting seat 6 are provided at the top of the first chamber; the upper end of the water inlet pipe 1 is connected to the gas pipeline to guide the condensed water in the gas network into the first chamber of the drainer. The water inlet pipe 1 is provided with a return air hole 3 on the pipe wall located in the first chamber of the drainer, which is used to balance the pressure of the gas in the first chamber of the drainer valve body 5 and the gas in the gas network. The water inlet pipe 1 is provided with a detection port 2 on the pipe wall located outside the first chamber of the drainer, and the pressure value in the water inlet pipe can be observed and recorded by installing monitoring elements such as a pressure gauge; the sealing pipe mounting seat 6 is used to fix the sealing pipe 7, and the top of the sealing pipe 7 is provided with a guide pipe mounting seat 15, and the bottom is processed with a threaded port for connecting with the valve seat 42 in the anti-leakage device 4; the top of the sealing pipe 7 is connected to the guide pipe 181 to the second chamber, and the condensed water can be transferred from the first chamber to the second chamber.

[0019] The anti-leakage device 4 is composed of a U-shaped connecting plate 41, a valve seat 42, a sealing valve plate 43, a split ring 44, a connecting rod 45, a floating ball assembly 46, a pin 148, and a pin 247; the sealing valve plate 43 is composed of a sealing ring mounting seat 431, a sealing ring 432, and a large cylindrical head screw 433. The valve seat 42 is connected to the bottom plane of the sealing tube 7 by threading; the U-shaped connecting plate 41 is welded to the bottom of the sealing tube 7 during assembly; the connecting rod 45 indirectly fixes the sealing valve plate 43 by welding the split ring 44; the connecting rod is connected to the U-shaped connecting block 41 by pin 148; the connecting rod 45 is connected to the floating ball assembly 46 by pin 247; the sealing valve plate 43 is fixed to the sealing ring 432 by the large cylindrical head screw 433 and the groove processed on the sealing ring mounting seat 431.

[0020] Two guide pipe mounting seats 15 are provided on the top of the second chamber of the drainer. The two guide pipe mounting seats 15 are connected to the first chamber through guide pipes 181 and the guide pipe 282 is connected to the third chamber respectively, so as to reduce and transfer the water and gas pressures.

[0021] A guide pipe mounting seat 15 and a water seal pipe mounting seat 12 are provided at the top of the third chamber of the drainer; a water seal pipe 13 is installed on the water seal pipe mounting seat 12; an overflow pipe mounting seat is provided on the top of the water seal pipe 13, and a thread is processed on the bottom for connecting with a one-way valve 14.

[0022] The normal working principle of the drain is as follows: when water enters the water inlet pipe 1 of the drain, condensed water accumulates in the first chamber of the drain, the float assembly 46 generates buoyancy in the water, driving the connecting rod 45 to pull the sealing valve plate 43 away from the valve seat 42, and the condensed water in the first chamber enters the sealing pipe 7 from the valve seat 42, and enters the guide pipe 181 along the sealing pipe 7, and the liquid level in the guide pipe 181 continues to rise. When the water level in the guide pipe 181 reaches the highest point, the condensed water enters the second chamber of the drain, and the liquid level in the guide pipe 181 automatically forms a water seal height; the second chamber of the drain begins to accumulate condensed water, and when the condensed water level in the second chamber reaches When the water level in the second chamber reaches the lower end of the flow guide pipe 282, the condensed water is pressurized and enters the flow guide pipe 282 that connects the second chamber and the third chamber. When the water level in the flow guide pipe 282 reaches the highest point, the condensed water enters the third chamber of the drainer, and the liquid level in the flow guide pipe 282 automatically forms a water seal height. The third chamber of the drainer begins to accumulate condensed water. When the condensed water level in the third chamber reaches the lower end of the water seal pipe 13 in the third chamber, the condensed water is pressurized and enters the water seal pipe 13. Due to the presence of the one-way valve 14 at the bottom of the water seal pipe, the direction of the fluid is controlled from bottom to top. After the condensed water enters the water seal pipe 13, it is not affected by the height of the liquid level in the third chamber, and forms a separate water seal. The condensed water enters the outlet pipe 10 along the water seal pipe 13, and the liquid level in the outlet pipe 10 continues to rise. When the liquid level in the outlet pipe 10 reaches the top, the condensed water flows along the pipe wall into the overflow funnel 11 and enters the subsequent sewage pool for centralized treatment.

[0023] The working principle of the drainer in response to the increase of gas pipe network pressure is as follows: when the pressure in the gas pipe network is greater than the sum of the water seal heights of the guide pipe 181, the guide pipe 282 and the water seal pipe 13, the water seal height of the drainer is punctured, and the condensed water in the first chamber of the drainer is discharged in large quantities from the valve seat through the guide pipe 181, the guide pipe 282 and the outlet pipe under the action of high pressure. The liquid level in the first chamber drops, the float assembly 46 loses buoyancy, and slowly drops under the action of gravity, driving the connecting rod 45 to press the sealing valve plate 43 tightly against the valve seat 42, thereby blocking the gas from entering the valve seat 42 and preventing the gas from leaking.

[0024] The principle of the drainer resuming normal operation is as follows: when the pressure in the gas network is less than the sum of the water seal heights of the guide pipe 181, the guide pipe 282 and the water seal pipe 13, the condensed water in each guide pipe flows back into each compartment under the action of gravity, and the float assembly 46 is re-immersed in water to generate buoyancy, which drives the connecting rod 45 again to move the sealing valve plate 43 away from the valve seat 42, and the drainer automatically returns to normal operation.

[0025] The connection between the sealing pipe mounting seat 6, the guide pipe mounting seat 15, the water seal pipe mounting seat 12, the sealing pipe 7, the outlet pipe 10, and the water seal pipe 13 is bolted and nut connected, and the end face O-ring sealing ring is adopted for sealing. The drainer body is provided with an overflow funnel 11, which is fixed by welding. The overflow funnel 11 is arranged below the outlet pipe 10. The first chamber cylinder wall of the drainer is provided with a mounting port 19, and the mounting port cover plate 18 is connected to the mounting port 19 by bolts; the second and third chamber cylinder walls of the drainer are provided with a sewage outlet 17, and the sewage outlet cover plate 16 is connected to the sewage outlet 17 by bolts; the mounting port cover plate 18 and the sewage outlet cover plate 16 are connected with a sewage valve 20. The sewage valve 20 can be opened regularly to drain the sewage in the drainer, and the mounting port cover plate 18 and the sewage outlet cover plate 16 can be opened later to clean the sludge inside each compartment with tools.

Claims

1. A purely mechanical anti-leakage drainer that automatically forms a water seal without water replenishment, characterized in that: The invention comprises a drain valve body, wherein the drain valve body is divided into three chambers by a partition plate, and the three chambers are sequentially connected by a flow guide pipe installed on a mounting seat.

2. The purely mechanical anti-leakage drainer that automatically forms a water seal without water replenishment according to claim 1 is characterized by: The water seal height of the drainer is automatically formed as the liquid level in the guide pipe rises as the drainer operates.

3. The purely mechanical anti-leakage drainer that automatically forms a water seal without water replenishment according to claim 1 is characterized by: The first chamber of the drainer is provided with a water inlet pipe, and the water inlet pipe is provided with a detection port and an air return hole.

4. The purely mechanical anti-leakage drainer that automatically forms a water seal without water replenishment according to claim 1 is characterized in that: An anti-leakage device is provided in the first chamber of the drainer, and the anti-leakage device is installed at the lower end of the sealing pipe of the first chamber.

5. The anti-leakage device according to claim 3, characterized in that: The anti-leakage device is composed of a connecting rod and a valve plate with a sealing ring. The two ends of the connecting rod are respectively connected to the U-shaped connecting plate and the float assembly through a pin shaft. The anti-leakage assembly drives the connecting rod to control the opening and closing of the valve plate through the buoyancy generated by the float assembly in the water.

6. The purely mechanical anti-leakage drainer that automatically forms a water seal without water replenishment according to claim 1 is characterized by: A separate water seal pipe is arranged in the third chamber of the drainer, and a one-way valve is arranged at the lower end of the water seal pipe. The one-way valve controls the flow direction of the fluid from bottom to top.

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