CN213542065U

CN213542065U - Automatic drainage device of compressed air tank

Info

Publication number: CN213542065U
Application number: CN202022071705.6U
Authority: CN
Inventors: 关勇; 李庭江; 杨斌; 冯丽燕; 刘兰斌; 陈龙滨; 王春亮; 胡小华; 谷云龙; 曾庆平; 廖艳
Original assignee: SGIS Songshan Co Ltd
Current assignee: SGIS Songshan Co Ltd
Priority date: 2020-09-20
Filing date: 2020-09-20
Publication date: 2021-06-25
Anticipated expiration: 2030-09-20

Abstract

The utility model relates to an automatic drainage device of a compressed air tank, which comprises a water storage tank and a condensate remover, wherein the water storage tank and the condensate remover are both arranged below the compressed air tank, the water storage tank is communicated with the bottom of the compressed air tank, the top of the condensate remover is communicated with the compressed air tank through a first conduit, and the water storage tank is communicated with the condensate remover through a second conduit; a drain valve is arranged on one side of the bottom of the condensate drainer. The utility model discloses to the phenomenon of a large amount of ponding in the compressed air jar, reduce the ponding of compressed air jar through adopting a condensate excluder and the method that the water storage tank combined together and used in the compressed air pipeline to further reach the effect that reduces the fault rate of end equipment, and because the design of water storage tank can reduce condensate excluder frequency of use, can improve the life-span of condensate excluder from this.

Description

Automatic drainage device of compressed air tank

Technical Field

The utility model relates to a technical field of compressed air pipeline, more specifically say, it relates to an automatic drainage device of compressed air jar.

Background

Compressed air is an important power source. Compared with other energy sources, the energy source has the following obvious characteristics: the air-permeable fire-resistant composite material is clear and transparent, convenient to convey, free of special harmful performance, free of fire danger and overload, capable of working in various adverse environments, and inexhaustible air is available everywhere on the ground. At present, compressed air is widely used in various industries, and as a pressure container for storing compressed air, which is called a compressed air tank for short, a phenomenon of a large amount of water in the tank often exists in the operation process, and the compressed air carries water to cause damage to end user equipment such as a boiler flame television and the like. The existing compressed air tank is generally provided with an automatic drainage system, a high-low liquid level sensor is generally arranged on a condensate collecting tank body, and a drainage pump is controlled to drain condensate through the on-off of the sensor. However, when the liquid level sensor is used, the condensate liquid is dynamic, and the liquid level is unstable, so that the liquid discharge pump is frequently started, and the liquid discharge pump is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a not enough to prior art exists, the utility model aims to provide an automatic drainage device of compressed air jar, the device compact structure, convenient to use can effectively reduce the start-up frequency of positive displacement pump to reach the effect that improves condensate excluder life.

The above technical purpose of the present invention can be achieved by the following technical solutions: an automatic drainage device of a compressed air tank comprises a water storage tank and a condensate remover, wherein the water storage tank and the condensate remover are both arranged below the compressed air tank, the water storage tank is communicated with the bottom of the compressed air tank, the top of the condensate remover is communicated with the compressed air tank through a first conduit, and the water storage tank is communicated with the condensate remover through a second conduit; and a drain valve is also arranged on one side of the bottom of the condensate remover.

In one embodiment, the second conduit is horizontally disposed and communicated to the bottom of the water storage tank.

In one embodiment, the first conduit is communicated to one side of the compressed air tank, and an electric control valve is further arranged on the first conduit.

In one embodiment, the bottom section of the compressed air tank is circular arc-shaped, the water storage tank is communicated to the middle of the bottom surface of the compressed air tank, and the first conduit is communicated to the upper part of the circular arc-shaped bottom surface of the compressed air tank.

In one embodiment, a water level monitor is disposed within the condensate drain, an upper sensing point of the water level monitor being located at a top of the condensate drain and above the second conduit, and a lower sensing point of the water level monitor being located at a top side of the condensate drain corresponding to the trap.

In one embodiment, the water storage tank has a top level greater than the condensate drain.

In one embodiment, the drain valve, the electric control valve and the water level monitor are all in signal connection with a PLC control system respectively.

In one embodiment, the bottom of the water storage tank is communicated with a manual valve.

To sum up, the utility model discloses following beneficial effect has:

1. the utility model discloses to the phenomenon of a large amount of ponding in the compressed air jar, reduce the ponding of compressed air jar through adopting a condensate excluder and the method that the water storage tank combined together and used in the compressed air pipeline, the ration is automatic hydrophobic, uses ponding in the reducible jar for a long time to further reach the effect that reduces the fault rate of end equipment, and because the design of water storage tank can reduce condensate excluder frequency of use, can improve the life-span of condensate excluder from this.

2. The second pipe level sets up the possibility that reduces its residual liquid, but combine first pipe setting switch's automatically controlled valve, at drainage in-process, can close first pipe to make the atmospheric pressure in the condensate expeller unchangeable temporarily, according to the linker principle, the internal gas pressure of water storage tank is great, can preferentially make ponding in the water storage tank flow to the condensate expeller, after the liquid in the water storage tank is got rid of totally, atmospheric pressure reentrant condensate expeller, then the water level in the condensate expeller just can descend gradually, and then make the liquid discharge in the condensate expeller.

3. This device is unified allotment by PLC control system, and when condensate excluder liquid level rose to upper sensing point, automatically controlled valve self-closing, accumulated water in drain valve automatic opening discharge water storage tank and the condensate excluder, the drain valve was closed when the condensate excluder descends to lower part sensing point, and automatically controlled valve opens, and compressed air gets back to in the compressed air jar by first pipe.

Drawings

Fig. 1 is a schematic structural view of an automatic water discharge device of a compressed air tank according to the present invention.

In the figure: 1-compressed air tank, 2-water storage tank, 3-condensate remover, 4-first conduit, 5-drain valve, 6-upper sensing point, 7-lower sensing point, 8-manual valve and 9-second conduit.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

It should be noted that all the directional terms such as "upper" and "lower" referred to herein are used with respect to the view of the drawings, and are only for convenience of description, and should not be construed as limiting the technical solution.

As shown in fig. 1, an automatic drainage device for a compressed air tank comprises a water storage tank 2 and a condensate remover 3, wherein the water storage tank 2 and the condensate remover 3 are both arranged below the compressed air tank 1, the water storage tank 2 is communicated with the bottom of the compressed air tank 1, the top of the condensate remover 3 is communicated with the compressed air tank 1 through a first conduit 4, and the water storage tank 2 is communicated with the condensate remover 3 through a second conduit 9; a drain valve 5 is arranged on one side of the bottom of the condensate remover 3. The utility model discloses to the phenomenon of a large amount of ponding in the compressed air jar 1, reduce the ponding of compressed air jar 1 through adopting a condensate excluder 3 and the method that water storage tank 2 combined together and used in the compressed air pipeline, the ration is automatic hydrophobic, use ponding in the reducible jar for a long time, thereby further reach the effect that reduces the fault rate of end equipment, and because the design of water storage tank 2 can reduce the 3 frequency of use of condensate excluder, can improve the life-span of condensate excluder 3 from this. The utility model discloses having add 2 equipment of water storage tank, at first having collected the condensate in the compressed air jar 1 through 2 collection of water storage tank to make water storage tank 2 and condensate excluder 3 form the communicating vessel principle through second pipe 9, first pipe 4 then is the atmospheric pressure that is used for balancing in the condensate excluder 3, makes it the same with water storage tank 2, and then makes water storage tank 2 and condensate excluder 3 liquid levels equal. And because the water storage tank 2 is that the condensate in the direct receiving compressed air tank 1, therefore, the liquid level in the condensate excluder 3 can be comparatively stable, if when the trap 5 is controlled through the break-make of the sensor, also can accurately and stably obtain some signals, and water storage tank 2 and condensate excluder 3 all are used for storing the condensate not discharged, can effectively increase the storage volume of the condensate, thus reduce the opening frequency of the trap 5, lengthen the life time of the condensate excluder 3.

In this embodiment, the second conduit 9 is horizontally disposed and communicated to the bottom of the water storage tank 2. The second conduit 9 is horizontally arranged to avoid a large amount of accumulated water remaining in the second conduit 9, and is located at the bottom of the water storage tank 2, so that the liquid in the water storage tank 2 can be discharged as much as possible, and the frequency of opening and discharging water is reduced. The first conduit 4 is connected to one side of the compressed air tank 1, so that the possibility of condensate entering the condensate remover 3 from the first conduit 4 can be reduced, and meanwhile, the first conduit 4 is also provided with an electric control valve which can be switched on and off. At drainage in-process promptly, can also close first pipe 4 to make the atmospheric pressure in the condensate drainer 3 unchangeable temporarily, according to the linker principle, the internal gas pressure of water storage tank 2 is great, can preferentially make ponding in the water storage tank 2 flow in to the condensate drainer 3, liquid in the water storage tank 2 is got rid of totally the back, atmospheric pressure reentrants in the condensate drainer 3, then the water level in the condensate drainer 3 just can descend gradually, and then make the interior liquid drainage of condensate drainer 3, the condensate in the water storage tank 2 can be impressed as far as possible in the condensate drainer 3, accelerate the drainage effect.

In the present embodiment, the bottom section of the compressed air tank 1 is circular arc-shaped, the water storage tank 2 is connected to the middle of the bottom surface of the compressed air tank 1, so that the condensate generated in the compressed air tank 1 is more easily collected in the water storage tank 2, and the first conduit 4 is connected to the upper part of the circular arc-shaped bottom surface of the compressed air tank 1, so that the condensate is prevented from entering the condensate remover 3 from the first conduit 4 as much as possible.

In this embodiment a water level monitor is provided in the condensate drain 3, the upper sensing point 6 of the water level monitor being located at the top of the condensate drain 3 above the second conduit 9 and the lower sensing point 7 of the water level monitor being located at the top side of the condensate drain 3 in relation to the trap 5. The device can utilize the water level monitor to detect signals to prompt whether the operation such as water drainage is needed or not. The drain valve 5, the electric control valve and the water level monitor are respectively connected with a PLC control system through signals. Through the unified allocation of the PLC control system, when the liquid level of the condensate remover 3 rises to the upper sensing point 6, the electric control valve is automatically closed, the drain valve 5 is automatically opened to drain accumulated water in the water storage tank 2 and the condensate remover 3, when the condensate remover 3 falls to the lower sensing point 7, the fact that all liquid in the water storage tank 2 is drained is proved, the liquid in the condensate remover 3 is drained as much as possible, and the liquid level is lower than the drain valve 5 to possibly cause the leakage of compressed air, so that the drain valve 5 can be closed, the electric control valve is opened, and the compressed air returns to the compressed air tank 1 through the first conduit 4.

In this embodiment the level of the top of the water storage tank 2 is greater than the level of the condensate drain 3. This is to avoid that condensate, which is not disposed of in time when the upper sensing point 6 fails, continues to build up and may spill over the water storage tank 2 into the compressed air tank 1. The water storage tank 2 is higher, leaving a space for continuously storing the condensate. The bottom of the water storage tank 2 is communicated with a manual valve 8, and the manual valve 8 is used for preventing the condensate in the water storage tank 2 from being discharged through opening of the manual valve 8 in time when the upper sensing point 6 fails.

A use method of an automatic drainage device of a compressed air tank comprises the following steps:

s1, the water storage tank 2 receives condensate accumulated water in the compressed air tank 1;

s2, the water storage tank 2 and the condensate drainer 3 form a communicating vessel level through a second conduit 9;

s3, when the liquid level rises to the upper sensing point 6 of the condensate remover 3, closing the communication of the first conduit 4 to limit the change of the air pressure in the condensate remover 3 and starting the water discharge;

s4, when the liquid level drops to the lower sensing point 7 of the condensate drain 3, communication between the condensate drain 3 and the compressed air tank 1, i.e. the first conduit 4, is restored and the drainage is stopped.

Further comprising the step of emergency handling: when the upper sensing point 6 fails, the manual valve 8 arranged at the bottom of the water storage tank 2 is used for draining water.

Compared with the existing automatic drainage system of the compressed air tank, the method has the advantages that the water storage tank 2 is additionally arranged for connecting the compressed air tank 1 and the condensate remover 3, so that the phenomena of dynamic liquid level change, unstable liquid level and the like occur in the water storage tank 2, the sensor or the drain valve 5 and the like in the condensate remover 3 cannot be influenced, the condensate capacity is increased, more condensate is stored as much as possible for starting drainage, the drainage process reduces the consumption and waste of compressed air and discharges more condensate as much as possible, the drainage starting frequency of the condensate remover 3 is reduced, and the service life of the condensate remover is prolonged. Since the change of the air pressure in the condensate remover 3 is limited in the process, according to the principle of communicating vessels, during the draining process, the liquid in the water storage tank 2 is firstly drained or enters the condensate remover 3, and then the liquid in the condensate remover 3 is drained, so as to ensure that the liquid in the water storage tank 2 is completely drained, and when the liquid level is sensed by the lower sensing point 7, which means that the liquid level is low enough, the compressed air may leak from the drain valve 5, so that the drain valve 5 should be closed immediately, and the step of collecting water in step S1 is resumed. In addition, in order to prevent special conditions such as signal control failure or pipeline blockage, condensate can be discharged from the water storage tank 2 through the manual valve 8, and the manual valve 8 can also be used for stopping maintenance to completely discharge all liquid and internal compressed air.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The automatic drainage device of the compressed air tank is characterized by comprising a water storage tank (2) and a condensate remover (3), wherein the water storage tank (2) and the condensate remover (3) are arranged below the compressed air tank (1), the water storage tank (2) is communicated with the bottom of the compressed air tank (1), the top of the condensate remover (3) is communicated with the compressed air tank (1) through a first conduit (4), and the water storage tank (2) is communicated with the condensate remover (3) through a second conduit (9); and a drain valve (5) is also arranged on one side of the bottom of the condensate drainer (3).

2. The automatic drain device for compressed air tank according to claim 1, characterized in that said second conduit (9) is horizontally disposed and connected to the bottom of said water storage tank (2).

3. The automatic drain device for compressed air tank according to claim 2, characterized in that said first conduit (4) is connected to one side of said compressed air tank (1), said first conduit (4) being further provided with an electrically controlled valve.

4. The automatic drain device of the compressed air tank according to claim 3, wherein the bottom section of the compressed air tank (1) is circular arc-shaped, the water storage tank (2) is communicated to the middle of the bottom surface of the compressed air tank (1), and the first conduit (4) is communicated to the upper part of the circular arc-shaped bottom surface of the compressed air tank (1).

5. Automatic drain device for compressed air tanks according to claim 3 or 4, characterized in that a water level monitor is provided in the condensate drain (3), the upper sensing point (6) of which is located at the top of the condensate drain (3) and above the second conduit (9), and the lower sensing point (7) of which is located at the top side of the condensate drain (3) corresponding to the trap (5).

6. The automatic drain device for a compressed air tank according to claim 5, wherein the level of the top of the water storage tank (2) is greater than the level of the condensate drainer (3).

7. The automatic drain device for compressed air tank according to claim 5, wherein said trap (5), said electric control valve and said water level monitor are each in signal connection with a PLC control system.

8. The automatic drain device for compressed air tank according to claim 7, characterized in that the bottom of the water storage tank (2) is connected with a manual valve (8).