KR200170257Y1 - Device for removing air in cooling water pipe - Google Patents

Abstract

The present invention is to remove the air contained in the cooling water supplied in one direction through the cooling water pipe,

A water collecting pipe 30 extending vertically upward from the piping member 90; and a float 13 and a hinge 14a connected to the water collecting pipe 30 and descending as the water level changes of the filled water. A pair of levers 14 hinged at both ends are mounted, and the float 13 is formed at the upper end of the vertical shaft 18 having the first spring 15 formed near each upper end of the lever 14. A lower cylinder 10 having an opening / closing opening 16 which is lifted and lowered; and a water removal net 21a is installed at the through hole 21 which is opened and closed by the opening and closing opening 16, and the water removal network 21a is provided. A dual cylindrical inner main body 26 having an air inlet 22 through which air passed in is integrally provided, and an operating shaft having a second spring 24 to seal a lower end of the inner main body 26. A rubber thin plate 23 is installed at an upper end of the 25, and a plurality of air outlets 28 are formed on the outer surface of the air outlets 28 through which air introduced into the air inlets 22 is discharged. It provides an air removing apparatus in the cooling water piping, including; formed by the upper cylinder 20 to be assembled with the lower cylinder 10 and a split type.

Description

DEVICE FOR REMOVING AIR IN COOLING WATER PIPE}

The present invention improves the productivity by increasing the cooling efficiency of the equipment by removing the air contained in the cooling water supplied in one direction through the cooling water pipe, and prevents the formation of air in the cooling water pipe to enable a quick start-up of the equipment after restarting the idle equipment. The present invention relates to an air removing device in a cooling water pipe.

In general, a cooling water pump is a device for generating pressure or transporting a liquid to a desired destination by a rotating rotor, and a cooling water pump used for industrial purposes uses a large-capacity suction suction centrifugal pump. It is mainly used for heat exchange to recover heat generated from equipment by compressing supply.

1 is a state diagram showing the inflow of air into a pipe from a general cooling water pump, as shown, the cooling water pump 40 in the direction of the main shaft 42 when the cooling water is compressed by a rotating wheel (not shown) built into the body As the vacuum pressure is formed, atmospheric air is introduced into the body and compressed with the cooling water, and the introduced air forms air bubbles in the cold water.

Accordingly, in order to prevent such air inflow, a sealant pipe 41 is installed in the direction of the pump shaft so as to block the inflow of air by flowing a certain amount of cooling water. However, when the packing wear in the direction of the main shaft 42, the amount of sealing water of the seal tube 41 is insufficient, air is compressed together with the cooling water flowing into the cooling water pump in the direction of the main shaft.

On the other hand, a certain amount of gas is injected into the cooling water flux in proportion to the pressure, and the dissolved gas is reduced to bubbles by the change of pressure and temperature to form air bubbles in the cooling water.

2 (a) is a state diagram showing the inflow of air in the cooling water pipe, as shown, the flow rate in the cooling water pipe (90) is a laminar flow (Lenold's number: 1145) of 2 m / sec, lighter specific gravity than water Bubbles prevented the heat exchange of the water cooler, which is a post process, by forming bubbles 11 on the upper portion of the pipe.

That is, the water cooler 60, which is an idle facility, is closed with a cooling water valve, so that air continues to accumulate in the water supply pipe 91 at the front end of the valve, and the air discharge valve 71 is opened when the facility is restarted. The air filled in (91) must be removed, which takes considerable time to remove the filled air, and the unremoved air prevents heat exchange in the water cooler 60, thereby lowering the thermal efficiency of the installation.

In addition, when a sudden accident occurs in a facility having a water pump 70 for compressing and supplying the cooling water to a high pressure as shown in FIG. 2 (b), the water pump 70 that is at rest must be urgently started. When the pump 70 is restarted, the water pump 70 is idling due to the air accumulated in the inlet pipe 92, and the cooling water is not compressed due to the idling of the water pump, and thus the cooling water is not supplied.

Therefore, due to such a problem, the control of the processor is difficult due to the rise in the fluid temperature, which causes an inevitable stoppage of the equipment, and the productivity is lowered, while the restart of the equipment is not performed quickly, thereby causing a serious problem of lowering the productivity.

The present invention has been devised in view of such a conventional problem, and its object is to collect and remove only air having a low specific gravity from the cooling water supply pipe of each unit, so that the equipment can be started quickly and the cooling efficiency can be increased to increase productivity. An object of the present invention is to provide an air removal device in a cooling water pipe that can be improved.

1 is a state diagram showing the inflow of air into the pipe in a typical cooling water pump,

Figure 2 (a) (b) is a state diagram showing the bubble generation in the cooling water pipe,

Figure 3 (a) (b) is a longitudinal sectional view, a partial sectional view showing an air removal device in the cooling water pipe according to the present invention,

Figure 4 (a) (b) is a sectional view and a perspective view showing an air removing device in the cooling water pipe according to the present invention,

Figure 5 (a) (b) is a state of use of the air removing device in the cooling water pipe according to the present invention j.

* Explanation of symbols for the main parts of the drawings *

10 ....... upper cylinder 12 ....... inlet pipe

13 ....... Float 14 ....... Lever

15 ....... 1st spring 16 .......

20 ....... lower cylinder 21 ....... through hole

21a ...... moisture removal network 22 ....... air inlet

23 ....... Rubber foil 24 ....... 2nd spring

25 ....... 2nd spring 30 ....... water pipe

As a technical configuration for achieving the above object, the present invention,

In the facility for transferring the coolant through the piping member,

A collecting pipe extending vertically upward from the piping member;

A pair of levers connected to the water collecting pipe, the float being lowered according to the water level change of the filled water, and a pair of levers hinged at both ends of the hinge are mounted, and are formed around each upper end of the lever to have a first spring having a first spring. A lower cylinder having an opening and closing opening and lowering with the float at the top of the;

A water removal net is installed in the through hole opened and closed by the opening and closing port, and a double cylindrical internal body having an air inlet port through which the air passing through the water removal net is provided integrally, and a lower end of the internal body cylinder Rubber upper plate is installed on the upper end of the operating shaft having a second spring to seal, the upper cylinder is assembled into the lower cylinder and the bi-dividing type by forming a plurality of air outlet on the outer surface for the air flowing into the air inlet; By providing an air removing device in the cooling water pipe characterized in that.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 (a) (b) is a longitudinal sectional view, a partial cross-sectional view showing an air removing device in the cooling water pipe according to the present invention, Figure 4 (a) (b) shows an air removing device in the cooling water pipe according to the present invention As a cross-sectional view and a perspective view, as shown, the device 1 of the present invention is installed in communication with the piping member 90 for supplying and supplying the cooling water in one direction, and removes only the air floating upward by the specific gravity difference. The apparatus 1 is comprised of the upper and lower cylinders 10 and 20 and the collection pipe 30.

The water collecting pipe 30 is a pipe member extending upwardly perpendicular to an outer surface of a pipe member 90 through which a fluid such as cooling water flows, and an opening / closing valve to allow the cooling water including air bubbles to flow into the lower cylinder 10. It is connected to the lower cylinder 10 via the connecting pipe 31 having a (33). At the front end of the water collecting pipe 30, the pipe gradient 35 is formed to be inclined so that the bubble 11 having a specific gravity is easily floated to the upper portion of the cooling water.

And, the upper and lower cylinders 10 and 20 which are installed in communication with the collecting pipe 30 are configured to be divided into a bipartisan type by a plurality of fastening members 19, such a lower cylinder 10 is the collection It is formed in the center of the lower surface of the inlet pipe 12 in communication with the connecting pipe 31 and the water pipe 30, the inner space is freely descending in accordance with the change in the water level of the cooling water filled through the inlet pipe 12 Float 13 is installed so that it is always floating by the buoyancy of the cooling water.

A pair of levers 14, one end of which is hinged to the upper surface of the float 13, the other end is hinged to the hinge hole 14a formed on the upper end of the inner surface of the lower cylinder 10, respectively, both ends of the float A vertical shaft 18 having a first spring 15 is integrally formed near each upper end of the pair of levers 14 which are hingedly connected to the 13 and the hinge sphere 14a and cross each other. The vertical shaft 18 is fitted into the guide hole of the locking member 18a fixedly mounted on the inner circumferential surface of the lower cylinder 10, and the upper end of the first spring 15 is the locking member 18a. Is interfered with. In addition, an opening and closing hole 16 is mounted at an upper end of the vertical shaft 18 exposed through the guide hole of the locking member 18a to open and close a passage of the through hole 21 to be described later. Here, it is preferable to form a slight taper at the tip portion of the opening and closing hole 16 so as to be in close contact with the packing (not shown) attached to the through hole 21 to maintain airtightness.

In addition, the float 13 installed in the lower cylinder 10 into which the coolant and the air flow is provided has a hollow cylinder shape, and is made of a material that can easily float on the inflow and fill of the coolant and react sensitively to the water level change. It is preferable.

In addition, the upper cylinder 20 to be assembled with the lower cylinder 10 is a pair of through-holes 21 on the bottom surface corresponding to the opening and closing 16 to be moved up and down while moving up and down with the float (13). ) Is formed in the perforation, and a water scrubbing net (21a) of a scrubber type is installed on the upper part so as to remove moisture contained in the air introduced through the through-hole (21) opened when the opening / closing device (16) descends.

In the inner space of the upper cylinder 20, a double cylindrical inner main body 26 is integrally formed to form a space portion 20a and a closed portion 20b, the upper surface of the inner main body 26 In the center, the air inlet 22 allows air passing through the through hole 21 to be introduced through the space portion 20a formed between the inner surface of the upper cylinder 20 and the inner body cylinder 26. It is formed through, the inner space of the inner cylinder 26 is elastically supported upwardly on the upper end of the operating shaft 25 having a second spring 24 to seal the bottom to form a closed portion (20b) space The rubber thin plate 23 is mounted.

In addition, the outer surface of the upper cylinder 20 by forming the air outlet port 28 is exposed to the front end of the discharge pipe 28a on the left and right sides in communication with the inner body cylinder 26, the inflow to the air inlet 22 The air flowing into the inner body cylinder 26 while pushing the rubber thin plate 23 downward is discharged to the outside through the air outlet (28).

It describes the operation of the present invention made of the configuration as described above.

First, the coolant conveyed in one direction through the pipe member 90 by the driving of the coolant pump flows into the collection pipe 30 vertically extended to the outer surface of the pipe member 90, and is contained in the coolant. Bubble 11 is naturally guided to the collection pipe 30 by the piping gradient 35, the cooling water containing the bubble 11 is passed through the connection pipe 31, the opening and closing valve 33 is opened. Bubbles contained in the lower cylinder 10 and contained in the cooling water to be filled are discharged out of the water surface and gradually accumulate in the limited internal space of the lower cylinder 10.

At this time, the through hole 21 which is the only connection path of the upper and lower cylinders 10 and 20 is connected to the lever 14 and the opening and closing port which is always connected to the float 13 floating on the cooling water filled in the lower cylinder 10. Since it is a state interrupted | blocked by the ascending operation of 16, accumulation of the bubble 11 which escaped from the cooling water in the said lower cylinder 10 is made continuously.

On the other hand, if the bubble 11 continues to accumulate in the inner space of the lower cylinder 11, the level of the coolant filled by the expansion force of the accumulated bubble 11 is lowered gradually, and the float 13 in accordance with the change in the water level ) Is lowered, so that the cross-crossed lever 14 hinged at both ends of the float 13 and the hinge 14a is also lowered, and the first spring 15 simultaneously with the lowering operation of the lever 14. The vertical axis 18 with () is lowered.

Accordingly, the through-hole 21, which is an air passage initially closed by the lowering of the opening / closing opening 16, which is the upper end of the vertical shaft 18, is opened while the air in the lower cylinder 10 passes through the upper cylinder 20. It will flow into me.

At this time, since the air introduced into the upper cylinder 20 through the through-hole 21 passes through the water removal network 21a installed therein, the water contained in the inside is removed, and the removed water is It collects in the lower cylinder 10 by self weight.

In addition, the air from which water is removed through the through hole 21 and the water removing network 21a is accumulated in the space portion 20a between the upper cylinder 20 and the inner body cylinder 26. The air accumulation in 20a is made by a rubber thin plate 23 which is elastically supported upward by the second spring 24 to seal the lower end of the inner main body 26 to block the air inlet 22. .

On the other hand, when the internal pressure of the air accumulated in the space portion 20a is greater than or equal to a predetermined predetermined pressure (that is, larger than the elastic force of the second spring 24 which elastically supports the rubber thin plate 23 upward), the air Is introduced into the air inlet 22 of the inner body cylinder 26 is filled in the sealing portion 20b of the inner body cylinder 26 while pushing the rubber thin plate 23 to the bottom, to the sealing portion 20b The air to be filled is discharged to the outside through the air discharge port 28 which is one end of the discharge pipe 28a while pushing the rubber thin plate 23 once again downward.

Then, when the air introduced into the upper cylinder 20 is discharged to the outside and the internal pressure of the upper cylinder 20 is lowered, the coolant is refilled through the inlet pipe 12 into the inner space of the lower cylinder 10. As it loses, the level of the coolant gradually rises, and the float 13 which has been lowered in response to the change of the level rises upward.

At the same time, the vertical axis 18, which is the upper end of the lever 14 hinged to the float 13, is also raised, and the corresponding through hole 21 is closed by the opening and closing hole 16 of the vertical axis 18 which is raised. The only passage between the lower cylinders 10 and 2 is blocked. As a result, no further inflow into the upper cylinder 20 is achieved.

In addition, when the internal pressure in the space portion 20a and the sealing portion 20b in the upper cylinder 20 drops and becomes smaller than the elastic force of the second spring 24, the rubber thin plate 23 is formed in the second spring 24. Since it is elastically supported upward by the elastic restoring force of), the lower end and the upper surface of the inner body cylinder 26 come into contact with each other to seal the air inlet 22 in an initial state to maintain airtightness.

On the other hand, such a device (1) is installed in the inlet pipe 91 of the water cooler 60 branched from the piping member 90, as shown in Figure 5 (a) can remove bubbles, Figure 5 (b) As shown in Fig. 2), air bubbles may be removed by being installed in the outlet pipe 93 of the water pump 70 branched from the pipe member 90.

As described above, according to the present invention, once the air bubbles (air) introduced into the cooling water due to abrasion of the packings installed in the cooling water supply pipe and the cooling water pump and the poor sealing device are introduced into the collection pipe by the specific gravity difference, Since only the bubbles can be discharged and removed by flowing into the upper and lower cylinders installed at the upper portion thereof, the cooling efficiency of the cooling water can be increased to improve the productivity, and the effect of enabling the rapid restart of the equipment at the time of starting the idle equipment is obtained. .

In addition, the device of the present invention is possible to maintain perfect watertight because it is intermittently intermittent air, it is configured to be easy to manufacture and repair, the production cost is low, and the effect of simplifying the maintenance of equipment after installation is obtained.

Claims (2)

In the facility for transferring the coolant through the piping member 90, A collecting pipe 30 extending vertically upward from the piping member 90; and A pair of levers 14 connected to the water collecting pipe 30 and hinged at both ends to the float 13 and the hinge port 14a, which are lowered in accordance with the water level change of the filled water, are mounted. A lower cylinder 10 formed at each upper end of the upper end 14 and having an opening and closing hole 16 which is lifted and lowered together with the float 13 at an upper end of the vertical shaft 18 having the first spring 15; and Inside the double-cylindrical shape having a water removal net 21a is installed in the through hole 21 opened and closed by the opening and closing hole 16, and the air inlet 22 through which air passing through the water removal net 21a flows. The body cylinder 26 is integrally provided, and a rubber thin plate 23 is installed on the upper end of the operating shaft 25 having the second spring 24 to seal the lower end of the inner body cylinder 26, and the air Cooling water comprising a; a plurality of air outlets 28 for discharging the air introduced into the inlet port 22 on the outer surface of the upper cylinder 20 is assembled into the lower cylinder 10 and divided into two types; Air removal device in the pipe. The method of claim 1, An air removing device in the cooling water pipe, characterized in that the front end of the water collecting pipe (30) is formed inclined pipe gradient 35 so that the bubble (11) having a specific gravity is easily floated to the upper portion of the cooling water.