KR101129045B1 - Automatic drain valve device - Google Patents

Abstract

PURPOSE: An automatic drain valve device is provided to simultaneously or individually discharge condensate at a fixed time interval and minimize the loss of compressed air by integrally managing drain valve units. CONSTITUTION: An automatic drain valve device comprises an air compressor(10), a main supply pipe(20), a plurality of branch pipes(30), drain valve units(40), and a control panel. The main supply pipe is connected to the air compressor and transfers compressed air. The branch pipes are branched off the main supply pipe. The drain valve units, each comprising a manifold(41) and a shutoff valve(44) for opening and shutting the flow path of a drain pipe(43) extended downward from the manifold, are installed on the end of an extension pipe extended downward from the branch pipes and collect condensate produced during the production and transfer of the compressed air. The control panel comprises a first timer which maintains an on-state for a set time, a second timer, and a relay which applies or cuts off power to the shutoff valve according to the operating state of the second timer.

Description

Automatic drain valve device

The present invention relates to an automatic drain valve device, and more particularly, to an automatic drain valve device that can periodically discharge the condensate generated in the compressed air pipe line and at the same time minimize the loss of compressed air.

Nowadays, due to the high development of the industry, various industrial field equipment, industrial equipment, etc. are becoming unmanned automation system, and pneumatic equipment using air is used throughout the industry because it is economical and excellent in safety.

Such a pneumatic device is driven by using compressed air generated from an air compressor, and mainly compressed air is supplied directly to the pneumatic device through an air supply pipe or an air hose, or in a state in which water or foreign matter is removed through a purification device. Supplied.

However, such compressed air is a state in which water vapor in the air is compressed with air in the process of generation by the air compressor, and thus contains a predetermined amount of moisture, and maintains a relatively high temperature state by the heat generated during the compression process. Compressed air

In case of supplying directly to the pressurized equipment, problems such as malfunction of the pneumatic equipment or shortened service life may occur due to moisture or foreign matter contained in the compressed air.Cleaning of compressed air by the currently used purifier (filter) In the water and water removal, the water removal and absorption rate by the filter is inadequate, and thus there is a problem that cannot solve the problem caused by the direct supply of the compressed air.

In addition, in the conventional cooler for cooling and condensing the compressed air generated from the air compressor to remove moisture, the operation for discharging the condensed water generated when the compressed air is removed is performed manually by the operator. There are many problems such as the operation of the condensate drainage by opening and closing the valve for the discharge of the condensate one by one.

In order to solve the above problems, an auto drain valve having a timer is used to discharge the condensate generated in the air storage tank and the air piping line every predetermined time.

However, since conventional auto drain valves are expensive, they need to be separately provided at each end of the air piping line. Therefore, installation cost increases, and it is difficult to manage a plurality of auto drain valves uniformly. There is a problem that a failure easily occurs because of clogging by foreign matter.

The present invention is to solve the above problems, by integrally managing a plurality of auto-drain valve installed at the end of the air pipe line in one place, at the same time to discharge the condensed water at the same time or separately, and to reduce the loss of compressed air The objective is to provide an automatic drain valve device that is easy to manage while minimizing.

In discharging the condensate generated in the process of being generated from the air compressor and supplied to the pneumatic equipment after being stored in the air tank, it has a simple structure for easy installation as well as automatic discharge and can improve workability according to manufacture and installation. Another object is to provide an automatic drain valve device.

The drain valve according to the present invention for solving the above problems is an air compressor for producing compressed air, a main supply pipe connected to the air compressor and the compressed air is transported, and is installed in the lower portion of the main supply pipe to store condensate The drain pipe is installed in the manifold provided with a storage space so that the distribution pipe communicates with the storage space, and a drain pipe extending below the manifold to discharge the condensed water stored in the storage space to the outside. And a control panel for controlling the operation of the shutoff valve through a timer to open and close the flow path of the drain pipe at a predetermined time interval.

The manifold is spaced apart by a predetermined interval along the longitudinal direction of the branch pipe branching from the main supply pipe, connected to the end of the extension pipe extending downward from the branch pipe is installed in the vertical direction so that the condensate can be drawn from the bottom , Characterized in that a plurality of distribution pipes are provided in the vertical direction.

The distribution pipe is characterized in that the inlet is further provided with one end is introduced into the manifold.

The distribution pipe may be further provided with a bent portion bent downward from the inlet portion.

The distribution pipe is characterized in that it is formed extending inclined upward from the manifold.

The distribution pipe is characterized in that the inlet is further provided with one end is introduced into the manifold.

The automatic drain valve device according to the present invention integrates and manages a drain valve unit installed in a line where compressed air is supplied at one place, simultaneously discharging condensed water at a set time simultaneously or individually, minimizing loss of compressed air, and easy to manage. There is an advantage.

In addition, in discharging the condensate generated in the process of being generated from the air compressor and supplied to the pneumatic device after being stored in the air tank, it has a simple structure to facilitate installation as well as automatic discharge, improving workability according to manufacturing and installation can do.

1 is a perspective view showing an automatic drain valve device according to a first embodiment of the present invention,
Figure 2 is a partially separated perspective view showing the main portion of the drain valve unit shown in Figure 1,
3 is a circuit diagram for controlling the shutoff valve through the control panel shown in FIG. 1,
Figure 4 is a partial exploded perspective view showing the main portion of the automatic drain valve device according to a second embodiment of the present invention,
FIG. 5 is a partial exploded perspective view showing the main part of an automatic drain valve device according to a third embodiment of the present invention;
6 is a partially extracted perspective view showing the main portion of the automatic drain valve device according to a fourth embodiment of the present invention.

Hereinafter, an automatic drain valve device according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 to 3 show a first embodiment of the automatic drain valve device of the present invention.

1 to 3, the automatic drain valve device according to the present invention includes an air compressor 10 for producing compressed air, a main supply pipe 20 connected with the air compressor 10, and conveyed compressed air; A manifold 41 is provided below the branch pipe branched from the main supply pipe 20 and has a storage space for storing condensed water and a distribution pipe 42 communicating with the storage space. The drain valve is provided in the drain pipe 43 extending to the lower portion of the manifold 41 to discharge the condensed water stored in the outside to open and close the flow path of the drain pipe 43 Unit 40 and a control panel 50 for controlling the operation of the shut-off valve 44 through a timer to open and close the flow path of the drain pipe 43 at a set time interval.

The main supply pipe 20 is connected to one end of the air compressor 10 so that the compressed air produced by the air compressor 10 can be supplied to the pneumatic device 9, and the other end thereof is extended to the factory and the production line. The main supply pipe 20 is provided with a plurality of branch pipes (30).

The main supply pipe 20 is provided with a main valve 25 for blocking and applying the transfer of the compressed air supplied from the air compressor 10, the branch supply pipe 30 branched from the main supply pipe 20 in the main supply pipe Branch valves 35 are provided to block and apply the transfer of the compressed air branched from the branch 20 to the branch pipe 30, respectively. The main valve 25 and the branch valve 35 can be applied to the manual type, can be applied to the automatic type, in the case of the automatic type is preferable to control the operation through the control panel 50.

The drain valve unit 40 extends downwardly from the branch pipe 30 and spaced apart at predetermined intervals along the longitudinal direction of the branch pipe 30 so as to collect condensed water generated during the production and transportation of the compressed air. And a drain pipe 43 extending downward from the manifold 41 so as to discharge the condensate stored in the manifold 41. And a shutoff valve 44 installed at the drain pipe 43 to open and close the flow path of the drain pipe 43. Although not shown in the drawings, a valve may be further provided between the branch pipe 30 and the extension pipe 37.

The manifold 41 is spaced apart a predetermined distance along the longitudinal direction of the branch pipe 30, is connected to the end of the extension pipe 37 extending downward and is installed in the vertical direction so that the condensed water can be filled from the bottom. The plurality of distribution pipes 42 are formed in the manifold 41 at predetermined intervals up and down along the longitudinal direction.

Although not shown in the drawing, the manifold may be installed to face in parallel with the ground. In this case, the distribution pipe preferably extends above the manifold, and the drain pipe preferably extends below the manifold.

The distribution pipe 42 communicates with the storage space by distributing compressed air produced by the air compressor 10 for use by a plurality of workers. One end coupling 42a is installed at the end of the distribution pipe 42 so that the connection pipe connected to the pneumatic device 9 can be coupled and separated in a one touch manner.

The shutoff valve 44 opens and closes the flow path of the drain pipe 43 at each time set by the control panel 50, and may apply a solenoid valve that opens or closes the flow path depending on whether current is applied.

In the drawing, reference numeral 21 denotes a 'T' type connector used for pipe connection, and 31 is an 'L' type connector.

As shown in FIG. 3, the control panel 50 may include a timer for setting a time to operate the shutoff valve 44 at a set time, and supply power to the shutoff valve 44 according to an operation state of the timer. It includes a relay unit (X1) for applying or blocking and the panel unit on which the timer unit and the relay unit (X1) is mounted.

As shown, the timer unit maintains an off state before the set time elapses in a state in which the first timer T1 maintains the on state for a set time and the first timer T1 operates when the power is supplied. The second timer T2 maintains the ON state only for a predetermined time after a certain time, and repeats the switching to the OFF state again after a predetermined time. In the present embodiment, the first timer T1 is turned on for 24 hours when the power is supplied, and the first timer T1 is turned on every minute and then turned off after X seconds. Was applied. Of course, the second timer T2 may be variously applied to the time when the second timer T2 is switched to the on state and the time to maintain the on state.

Looking at the operating state of the shut-off valve 44 by the control panel 50, when power is supplied to the first timer (T1), the first timer (T1) is turned on for 24 hours to the second timer (T2) The power is applied and the second timer T2 is turned on. When the second timer T2 is turned on, power is applied to the relay and the shutoff valve 44 to open the flow path of the drain pipe 43. At this time, the second timer T2 remains in the ON state only for X seconds, and the flow path of the drain tube 43 is opened. The second timer T2 is turned off after X seconds, and the shutoff valve 44 also closes the flow path of the drain pipe 43 after X seconds from the opening point of the drain pipe 43.

The circuit diagram shown in FIG. 3 is not limited to the example illustrated as showing an embodiment, and a circuit for turning on / off an automatic valve using a plurality of timers is generally applicable.

The control panel 50 as described above may automatically discharge the condensed water contained in the manifold 41 by operating the shutoff valve 44 at a set time.

4 illustrates an automatic drain valve device according to a second embodiment of the present invention. Referring to FIG. 4, a plurality of distribution pipes 142 are formed in the manifold 141 so as to be spaced apart by a predetermined interval along the vertical direction. Each distribution pipe 142 is formed with an inlet 143 is introduced into the manifold (141). The inlet 143 is drawn in toward the storage space so that condensate flowing along the inner circumferential surface of the manifold 141 does not flow into the distribution pipe 141.

On the other hand, Figure 5 shows an automatic drain valve device according to a third embodiment of the present invention. Referring to FIG. 5, the distribution pipe 242 is deformed from the distribution pipe 141 shown in FIG. 4 and is bent downward from an end portion of the inlet portion 243 formed into the manifold 241. The unit 244 is further provided. The bent portion 244 is formed so that the opening is directed downward so that condensed water flowing along the inner circumferential surface of the manifold 241 does not flow into the distribution pipe 242.

Unlike this, FIG. 6 shows an automatic drain valve device according to a fourth embodiment of the present invention. Referring to FIG. 6, the manifold 341 is spaced apart from each other along the up and down direction, communicates with the storage space, and prevents condensate flowing along the inner circumferential surface of the manifold 341 from being discharged to the outside of the manifold 341. A plurality of distribution pipes 342 extending obliquely upward from the fold 341 are provided.

Although not shown in the drawings, the end of the distribution pipe 342 may be formed to be inclined upwardly bent downward so that the operator can easily be coupled to the connection pipe connected to the pneumatic equipment.

The automatic drain valve device according to the present invention as described above has been described with reference to one embodiment shown in the drawings, but this is merely exemplary and various modifications and equivalents from those skilled in the art will be appreciated. It will be appreciated that other embodiments are possible.

Therefore, the true technical protection scope of the present invention will be defined by the appended claims.

10: air compressor
20: main supply pipe
25: main valve
30: branch pipe
35: branch valve
37: extension tube
40: drain valve unit
41: manifold
42: distribution pipe
43: drain pipe
44: shut off valve
50: distribution panel

Claims (6)

An air compressor for producing compressed air;
A main supply pipe connected to the air compressor to transfer the compressed air;
A plurality of branch pipes branched from the main supply pipe;
It is installed at the end of the extension pipe which is spaced apart at a predetermined interval along the longitudinal direction of the branch pipe and extends downwardly from the branch pipe so as to collect the condensed water generated during the production and transport of the compressed air and stored to store the condensed water. A manifold having a space and a distribution pipe communicating with the storage space, and a drain pipe extending below the manifold so as to discharge the condensed water stored in the storage space to the outside. A drain valve unit including a shutoff valve for opening and closing;
When the power is supplied to open and close the flow path of the drain pipe at a predetermined time interval, the first timer to maintain the on state for a set time, and the off state before the set time in the state in which the first timer is operated And a control panel including a second timer for maintaining the ON state only for a predetermined time after the set time, and a relay unit for supplying or blocking power to the shutoff valve according to the operation state of the second timer.
The distribution pipe is an automatic drain valve device, characterized in that the inlet portion is drawn inward toward the storage space of the manifold and the bent portion bent downward from the end of the inlet portion.
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