CN110761978A

CN110761978A - Compressed air drainer

Info

Publication number: CN110761978A
Application number: CN201810846070.7A
Authority: CN
Inventors: 徐栋; 徐文丽; 徐晓宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-27
Filing date: 2018-07-27
Publication date: 2020-02-07

Abstract

The invention discloses a compressed air drainer, and aims to provide a compressed air drainer which can drain water in time and can reliably operate. The water-saving device comprises a first shell and a second shell, wherein the first shell is provided with 3 interfaces including a water inlet, a balance port and a water outlet, a water discharge valve component and a sewage discharge valve component. The compressed air drainer adopts a mode of arranging the balance port, effectively overcomes the defects that the prior floating ball type drainer stops working after running for a period of time and cannot drain water in time, and ensures the safe, stable and reliable running of a compressed air system. The compressed air drainer is a pure mechanical device, has small operation and maintenance workload, simple and reliable structure, and has the advantages of low cost and simple technology.

Description

Compressed air drainer

Technical Field

The invention relates to an automatic compressed air drainage device, in particular to a compressed air drainage device.

Background

An automatic drainage method of the prior compressed air system equipment (such as an air storage tank) is to drain water through a floating ball type drainer, and the automatic drainage method has the following problems: the floating ball type drainer is provided with 2 interfaces of a water inlet and a water outlet, a drain valve component and a drain valve component, and the drainer stops working after running for a period of time and cannot drain water in time, so that the water level of compressed air system equipment (such as an air storage tank) is too high, an output air source contains water, subsequent equipment or systems are damaged, and even the equipment is damaged, and the system is forced to stop running.

Disclosure of Invention

In order to overcome the defects that the existing floating ball type drainer stops working after running for a period of time and cannot drain water in time, the invention provides the compressed air drainer which not only can drain water continuously and in time, but also can ensure safe and reliable running of subsequent equipment and systems.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a compressed air drainer, includes first casing, second casing, and first casing passes through bolt, nut fastening combination as an organic whole with the second casing, and first casing is sealed with the first sealing washer with the second casing, is equipped with 3 interfaces altogether of water inlet, balanced mouth, outlet and drainage valve module, blowdown valve module on the first casing, and wherein balanced mouthful is established at first casing upper half.

The drainage valve component comprises a drainage valve seat, a second sealing ring, a fixed support, a locking nut, a drainage valve core, a movable support and a floating ball, wherein the drainage valve seat is fastened on the first shell through threads and sealed by the second sealing ring, the fixed support provided with a shaft hole is fastened on the drainage valve seat through the locking nut, the drainage valve core and the floating ball are respectively fixed at two ends of the movable support, a small shaft which is fixed into a whole with the movable support is arranged on the movable support, and the small shaft penetrates into a shaft hole of the fixed support and can freely rotate in a certain angle along with the lifting of the floating ball.

The compressed air drainer comprises a blowdown valve seat, a third sealing ring, a blowdown valve core and a fourth sealing ring, wherein the blowdown valve seat is fastened at the bottom of the first shell through threads and is sealed by the third sealing ring, the blowdown valve core is of a hollow structure with the top closed, a transverse small hole is drilled in the upper part of the blowdown valve core and communicated with the hollow structure to form a blowdown channel, and the transverse small hole of the blowdown valve core is sealed by the fourth sealing ring and fastened on the blowdown valve seat. When the sewage draining valve is closed, the rotary sewage draining valve core descends, the fourth sealing ring is pressed tightly and the sewage draining channel is blocked to stop draining.

The basis of the balance port of the invention is that the solubility of air in water is proportional to the pressure. When the water level of the air storage tank rises to form a pressure difference with the water level in the existing floating ball type drainer and the air flows into the drainer through a drain pipe of the air storage tank, air dissolved in water escapes from the water due to pressure reduction because the pressure in the drain pipe is gradually reduced, the escaped air is accumulated on the air side of the upper part of the drainer and the pressure of the air side of the drainer is gradually increased, at the moment, the drainage of the air storage tank cannot enter the drainer, the water level in the drainer cannot rise, the floating ball gradually falls, and finally the drainage valve core is closed, and the drainer cannot drain water in time; according to the invention, after the balancing port is arranged on the upper gas side of the floating ball type drainer and is kept in pressure balance with the upper gas side of the gas storage tank through the balancing pipe, the water in the gas storage tank can flow into the floating ball type drainer when the water level is slightly high, so that the floating ball floats upwards, and water can be drained in time.

The invention has the beneficial effects that the drainer adopts a mode of arranging the balance port, thereby effectively eliminating the defects that the prior floating ball type drainer stops working after running for a period of time and cannot drain water in time. After the balance port is arranged, the air storage tank can always keep the lowest water level, particularly, the drainer can continuously and timely drain water, and the safe and reliable operation of subsequent equipment and systems is guaranteed.

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a left side view of FIG. 2;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is an enlarged view of I of FIG. 4;

FIG. 6 is an enlarged view II of FIG. 4;

figure 7 is an exploded view of a drain valve assembly.

In the figure, 1, a first shell, 2, a second shell, 3, a floating ball, 4, a bolt, 5, a nut, 6, a first sealing ring, 7, a water inlet, 8, a balance port, 9, a water outlet, 10, a sewage discharging valve core, 11, a movable support, 12, a sewage discharging valve core, 13, a water discharging valve seat, 14, a locking nut, 15, a second sealing ring, 16, a fixed support, 17, a sewage discharging valve seat, 18, a third sealing ring, 19, a fourth sealing ring, 20, a shaft hole and 21, a small shaft are arranged.

Detailed Description

[ example 1 ]

As shown in fig. 1 to 7, a compressed air drainer includes a first casing 1 and a second casing 2, wherein the first casing 1 and the second casing 2 are fastened and combined into a whole by a bolt 4 and a nut 5, and the first casing 1 and the second casing 2 are sealed by a first sealing ring 6. The first shell 1 is provided with 3 interfaces including a water inlet 7, a balance port 8 and a water outlet 9, a drain valve assembly and a drain valve assembly, wherein the balance port 8 is positioned at the upper half part of the first shell 1.

The drainage valve component of the compressed air drainer comprises a drainage valve seat 13, a second sealing ring 15, a fixed support 16, a locking nut 14, a drainage valve core 12, a movable support 11 and a floating ball 3, wherein the drainage valve seat 13 is fastened on the first shell 1 through threads and sealed through the second sealing ring 15, the fixed support 16 provided with a shaft hole 20 is fastened on the drainage valve seat 13 through the locking nut 14, the drainage valve core 12 and the floating ball 3 are respectively fixed at two ends of the movable support 11, a small shaft 21 which is processed into a whole is arranged on the movable support 11, and the small shaft 21 penetrates into the shaft hole 20 and can freely rotate within a certain angle. When the water level in the drainer rises to a certain degree, the floating ball 3 rises, and the movable bracket 11 drives the drainage valve core 12 to open to start drainage; after the water level in the drainer drops to a certain degree, the floating ball 3 drops, the movable bracket 11 drives the drainage valve core 12 to close, and drainage is stopped.

The blowdown valve assembly of the compressed air drainer comprises a blowdown valve seat 17, a third sealing ring 18, a fourth sealing ring 19 and a blowdown valve core 10, wherein the blowdown valve seat 17 is fastened at the bottom of the first shell 1 through threads and is sealed by the third sealing ring 18, the blowdown valve core 10 is of a hollow structure with the upper part sealed, a transverse small hole is drilled in the upper part and communicated with the hollow structure, and the transverse small hole of the blowdown valve core 10 is sealed by the fourth sealing ring 19 and fastened on the blowdown valve seat 17. When the sewage draining valve core 10 is screwed in the sewage draining process, the sewage draining valve core 10 is lifted, sewage is discharged through a channel formed by the transverse small hole of the sewage draining valve core 10 and the hollow structure, when the sewage draining valve core 10 is closed, the screwed sewage draining valve core 10 descends, and the fourth sealing ring 19 compresses and blocks the sewage draining channel. The waste valve assembly allows manual waste disposal of the drain since compressed air system equipment is inevitably contaminated and may accumulate in the bottom of the drain for too long a period of time.

The compressed air drainer can be arranged on compressed air system equipment needing water drainage, such as an air storage tank, a gas-water separator, a cold dryer, an air cooler and the like, a water inlet 7 is connected with a drain pipe at the bottom of the air storage tank, a balance port 8 is connected with the upper gas side of the air storage tank or an outlet pipe of the air storage tank, a water outlet 9 is connected with a drainage ditch pipe, and the water inlet 7 must be lower than the bottom of the air storage tank.

[ example 2 ]

The compressed air drainer can also be provided with 2 interfaces including a water inlet 7 and a water outlet 9, a drain valve component and a drain valve component on the first shell 1, the second shell is provided with a balance port 8, and the balance port 8 is positioned at the upper half part of the second shell 2.

The above description is only for the preferred embodiment of the present invention, and the purpose, technical solution and advantages of the present invention are further described in detail, it should be understood that the above description is only for the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and any modifications, equivalent changes, improvements, etc. made by using the contents of the description and the drawings of the present invention can be directly or indirectly applied to other related technical fields, and all the same shall be included in the scope of the present invention.

Claims

1. The utility model provides a compressed air drainer, first casing 1 and second casing 2 pass through bolt 4, nut 5 fastening combination as an organic whole, and first casing 1 is sealed with first sealing washer 6 with second casing 2, is equipped with water inlet 7, outlet 9 and drain valve subassembly, blowdown valve subassembly, its characterized in that on the first casing 1: the first shell 1 is also provided with a balance port 8, and the balance port 8 is positioned at the upper half part of the first shell 1.

2. The utility model provides a compressed air drainer, first casing 1 and second casing 2 pass through bolt 4, nut 5 fastening combination as an organic whole, and first casing 1 is sealed with second casing 2 with first sealing washer 6, is equipped with water inlet 7, 9 interfaces and drain valve subassembly, blowdown valve subassembly altogether of outlet 9 on the first casing 1, its characterized in that: the second housing 2 is provided with a balancing port 8, the balancing port 8 being located in the upper half of the second housing 2.