KR100770410B1 - Device of heat exchanger and exchange system - Google Patents

Abstract

A heat exchanger and a heat exchange system using the same are provided to prevent impurities contained in fluid from disturbing or blocking flow of the fluid and discharge the impurities even during running by improving structure. A heat exchanger includes a main body(200) having an upper part formed with an inlet(210) and a lower part formed with an outlet(220), wherein cooling water flows through heat exchange tubes(230). A cover(300) is joined with an inlet pipe(310) of the cooling water at a side and formed with a space part inside to be connected to the heat exchange tubes of the main body. A removable filtering net(400) is mounted in the space part of the cover for blocking impurities contained in the cooling water, which is introduced into the heat exchange tubes. An inlet valve(320) is mounted to the inlet pipe for controlling a flow rate of the cooling water to be introduced into the heat exchange tubes. An impurity discharge pipe(500) is branched from the inlet pipe to be connected to the outside for discharging the impurities. A backflow valve(510) is mounted at a side of the impurity discharge pipe for controlling backflow of the impurity discharge pipe.

Description

Heat exchanger device and heat exchange system using same {Device of heat exchanger and exchange system}

1 is a side cross-sectional view showing a conventional heat exchanger,

2 is a perspective view of a heat exchanger device according to an embodiment of the present invention,

3 is a side cross-sectional view of the heat exchanger device shown in FIG. 2;

4 and 5 are installed state diagram of FIG.

<Description of the symbols for the main parts of the drawings>

Heat exchanger 200 Main unit

210 ... inlet 220 ... outlet

230 ... heat exchange tube 240 ... tube support

300 ... cover 310 ... inlet pipe

320 ... inlet valve 400 ... locking net

500 ... Foreign substance discharge pipe 510 ... Back flow valve

600 ... inflow circulation pipe 700 ... outflow circulation pipe

The present invention relates to a heat exchanger, and more particularly, various foreign substances generated in a pipe, a heat exchanger cover, and a cooling tower are attached to a surface of a tube or a tube sheet of a heat exchanger to prevent corrosion and scale of the heat exchanger, and The present invention relates to a heat exchanger device capable of discharging foreign substances caught in the air.

In general, a heat exchanger device generally uses a structure as shown in FIG. 1 to indirectly contact a high temperature fluid with a low temperature fluid to cool and heat a product.

Referring to the drawings, the conventional heat exchanger device 10 includes a main body 20 having an inlet 21 and an outlet 22, and a tube 30 inside the main body 20.

The main body 20 is provided with a plurality of tube supports 31 for supporting the tube 30.

In addition, one side of the main body 20 is connected to the coolant inlet tube 23 and the discharge tube 24 through which the coolant is introduced into and discharged from the tube 30.

In the heat exchanger device 10, when a high temperature fluid flows from the inlet 21 of the main body 20, the coolant flows into the tube 30 through the inlet pipe 23. The fluid introduced into the main body 20 comes into contact with the outer circumferential surface of the tube 30.

Here, the coolant flowing into the tube 30 absorbs the heat of the fluid flowing into the main body 20 so that the low temperature fluid is discharged to the outlet 22 of the main body 20.

However, the conventional heat exchanger device 10 is to prevent corrosion of the tube by obstructing or blocking the flow of the cooling water by closing the inlet of the tube through which the coolant is introduced into the corrosion oxide and the coolant is separated from the underground pipe. Cause problems.

In addition, in order to remove the foreign matter accumulated in the inlet of the tube 30 of the heat exchanger device 10, the operation of the heat exchanger is stopped, and a separate foreign matter removal operation is required, which causes a problem in that the efficiency of the work decreases. .

The present invention has been made to solve the above problems, the foreign matter contained in the fluid flowing inside the heat exchanger does not block or block the flow of the fluid, heat exchange to improve the structure so that the discharge of foreign matter during operation It is an object of the present invention to provide an apparatus and a heat exchange system using the same.

Other objects and advantages of the invention will be described below and will be appreciated by the embodiments of the invention. Furthermore, the objects and advantages of the present invention can be realized by means and combinations indicated in the claims.

The heat exchanger device and the heat exchange system using the same of the present invention for achieving the above object is a heat exchange tube in which the coolant flows in the state in which the inlet of the fluid is formed in the upper portion, the outlet for discharging the introduced fluid is formed therein A main body provided; A cover coupled to one side of the inlet pipe of the cooling water and coupled to communicate with the heat exchange tube of the main body in a state where a space is formed therein; A catching network detachably coupled to a space of the cover to block foreign substances contained in the cooling water flowing into the heat exchange tube; An inlet valve installed at the inlet pipe to adjust a flow rate of the cooling water flowing into the heat exchange tube of the main body; A foreign substance discharge pipe branched from the inlet pipe and communicating with the outside to discharge the foreign substances; And a reverse flow valve installed at one side of the foreign substance discharge pipe to control the reverse flow of the foreign substance discharge pipe.

The heat exchanger includes a plurality of heat exchangers, a cooling water inlet circulation tube for supplying cooling water to each inlet tube of the main body, and a discharge circulation tube for collecting the cooling water discharged from each heat exchange tube of the main body to an external cooling tower. It is preferable to further include.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

      Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

      Therefore, the embodiments described in the specification and the drawings shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, these are various alternatives at the time of the present application It should be understood that there may be equivalents and variations.

2 and 3 are a perspective view and a side cross-sectional view showing a heat exchanger device according to an embodiment of the present invention.

Referring to the drawings, the heat exchanger device 100 according to an embodiment of the present invention is provided with a main body 200 is formed with an inlet 210 through which the fluid is introduced and an outlet 220 through which the introduced fluid is discharged. The body 200 is provided with a heat exchange tube 230 through which cooling water flows.

In addition, the cover 300 is coupled to one side of the main body 200, and the cover 300 is provided with a catching network 400 inside the cover 300, and the inlet pipe 310 into which the coolant flows into one side of the cover 300. Is connected.

In addition, the inlet pipe 310 is provided with an inlet valve 320.

In addition, the foreign matter discharge pipe 500 is branched to one side of the inflow pipe 310, and the foreign matter discharge pipe 500 is provided with a backflow valve 510.

The main body 200 is a member through which fluid flows.

The main body 200 has an inlet 210 through which fluid is introduced into an upper portion thereof, and an outlet 220 through which the inflowed fluid flows inside the main body 200 and is discharged to the outside.

In addition, a heat exchange tube 230 through which low-temperature cooling water flows is provided inside the main body 200, and a tube support 240 supporting the heat exchange tube 230 is provided inside the main body 200. do.

Accordingly, the fluid flowing into the inlet 210 of the main body 200 is cooled while being absorbed by the coolant flowing into the heat exchange tube 230 while flowing in contact with the heat exchange tube 230. In the state it is discharged to the outlet 220.

On the other hand, the flow path of the fluid that can be flowed into the main body 200 is not limited to two passes (pass) as shown in Figure 3, three passes (pass) or four passes ( Various types of flow passages can be formed.

The cover 300 is a member coupled to one side of the main body 200 to allow the coolant to flow.

One side of the cover 300 is connected to the inlet pipe 310 through which the coolant is introduced, and the coolant introduced to the other side is discharged.

Here, the cover 300 is coupled to the inlet pipe 310 is in communication with the heat exchange tube 230 of the main body 200 in the form of a space therein.

Therefore, the coolant flowing into the inlet tube 310 flows into the heat exchange tube 230 through the cover 300.

The catching network 400 is a member for catching a foreign substance contained in the coolant flowing into the heat exchange tube 230 of the main body 200.

This, the catching network 400 is provided with a fastening member on the edge is detachably coupled to the space portion of the cover 300 adjacent to the inlet pipe 310.

Therefore, the catching network 400 is to hold the foreign matter contained in the fluid when the coolant is introduced into the inlet pipe 310 and introduced into the heat exchange tube 230 through the cover 300, the heat exchange tube ( 230) Do not allow foreign matter to flow inside.

The inlet valve 240 is provided in the inlet pipe 310 to open or close the fluid flowing into the main body 200, or to control the flow rate.

The foreign substance discharge pipe 500 is a member that is a passage for discharging the foreign substance to the outside.

The foreign matter discharge pipe 500 is branched from the inlet pipe 310, and when the cooling water of the heat exchange tube 230 flows back, foreign matter contained in the cooling water and the cooling water is discharged to the outside.

The back flow valve 510 is a valve for controlling the back flow of the foreign substance discharge pipe (500).

This, the backflow valve 510 is provided in the foreign substance discharge pipe (500).

Here, when the inflow valve 510 is opened while the inflow valve 320 of the inflow pipe 310 is locked, a pressure difference between the internal pressure of the heat exchange tube 230 and the outside occurs.

Therefore, the coolant introduced into the heat exchange tube 230 is discharged back to the foreign substance discharge pipe 500 by the pressure difference with the outside and discharged to the outside together with the foreign substance caught in the catching network 400.

In addition, the heat exchanger device 100 is provided in plurality, each inlet pipe 310 of the main body 200 is interconnected by a coolant inlet circulation pipe 600 for supplying coolant, each of the main body ( Cooling water discharged from each heat exchange tube 230 of the 200 is connected to each other by a discharge circulation pipe 700 collected by an external cooling tower.

As described above, a heat exchange system using the heat exchanger device 100 according to an exemplary embodiment of the present invention will be described with reference to FIGS. 3 to 5.

First, when the heat exchanger device 100 is operated, as shown in FIGS. 3 and 4, the coolant flowing into the inlet circulation pipe 600 is opened to the inlet pipe 310 while the inlet valve 320 is opened. Inflow.

Here, the coolant flowing into the inlet tube 310 is introduced into the heat exchange tube 230 of the main body 200 through the cover 300.

At this time, the foreign matter contained in the flowing coolant is caught by the catching network 400 provided in the cover 300, the cooling water in the foreign matter is filtered into the heat exchange tube 230 is introduced.

In addition, the cooling water in which the foreign matter is filtered by the catching network 400 flows through the heat exchange tube 230 and is discharged to the outside of the main body 200.

In this state, the fluid flowing into the inlet 210 of the main body 200 comes into contact with the heat exchange tube 230 while flowing inside the main body 200, whereby the heat of the fluid is transferred to the heat exchange tube 230. By being absorbed by the cooling water flowing into the), the fluid in a cooled state is discharged to the outlet 220.

However, when a large amount of foreign matter is caught by the catching network 400 while the cooling water flows, and the flow of the cooling water is not smooth, as illustrated in FIG. 5, the inlet valve 320 of the heat exchanger device to remove the foreign matter. ) And open the backflow valve 510.

At this time, the inlet pipe 310 of the heat exchange tube 230 is interconnected by the inlet circulation pipe 600, the cooling water discharged from each heat exchange tube 230 of the main body 200 is the discharge circulation pipe Interconnected by 700.

Therefore, the cooling water of the remaining heat exchanger except the heat exchanger device for removing foreign matter is introduced into the main body through the inlet circulating pipe 600 at a high pressure, and discharged to the discharge circulating pipe 700 while the backflow valve 510. Inflow into the heat exchange tube 230 is lowered by the internal pressure of the opening.

Here, the coolant introduced into the heat exchange tube 230 flows back to the foreign substance discharge pipe 500 by the pressure difference with the outside in a state of maintaining the constant pressure.

Therefore, the foreign matter caught in the catching network 400 is dropped from the catching network 400 according to the reverse flow direction of the cooling water and flows to the foreign matter discharge pipe 500 together with the cooling water to be discharged to the outside.

In addition, after the foreign substance is discharged to the outside through the foreign substance discharge pipe 500, when the backflow valve 510 is locked and the inlet valve 320 is opened, the coolant is the main body 200 through the inlet valve 320. It is flowed to the heat exchange tube 230 of the normal flow discharged to the discharge circulation pipe (700).

As such, the heat exchanger device 100 blocks the foreign matter contained in the cooling water from entering the heat exchange tube 230 by the catching network 400 provided in the cover 300 to prevent the foreign matter from entering the heat exchange tube 230. Corrosion can be prevented.

And, in order to remove the foreign matter caught in the catching network 400, the foreign matter by backflowing the cooling water of the heat exchanger device 100 to remove the foreign matter in the state that the heat exchange device 100 is continuously operated. It can be easily discharged.

As described above, the heat exchanger and the heat exchanger system using the same according to the present invention provide the following effects.

First, it is possible to extend the life of the product by blocking the foreign matter contained in the coolant to be introduced into the heat exchange tube by preventing the foreign matter contained in the cooling water to be introduced into the heat exchange tube by preventing the corrosion and scale of the heat exchange tube according to the foreign matter.

Second, since the foreign matter caught in the hooking network can be easily discharged even during operation of the heat exchanger device, the cooling water supply of the heat exchanger tube can be smoothly improved, thereby improving heat exchange efficiency.

Third, since the catching net provided on the cover is detachable, it is economical because the catching net is easy to replace and maintain.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

Claims (2)

A main body having a heat exchange tube through which a coolant flows in a state in which an inlet of a fluid is formed in an upper portion, and a discharge hole in which an inflowed fluid is discharged is formed in a lower portion thereof; A cover coupled to one side of the inlet pipe of the cooling water, the cover coupled to communicate with the heat exchange tube of the main body in a space formed therein; A catching network detachably coupled to a space of the cover to block foreign substances contained in the cooling water flowing into the heat exchange tube; An inlet valve installed at the inlet pipe to adjust a flow rate of the cooling water flowing into the heat exchange tube of the main body; A foreign substance discharge pipe branched from the inlet pipe and communicating with the outside to discharge the foreign substances; And Is installed on one side of the foreign substance discharge pipe, the heat exchanger device comprising a backflow valve for controlling the backflow flow of the foreign substance discharge pipe. Claim 1 is provided with a plurality of heat exchangers, the cooling water inlet circulation pipe for supplying the cooling water to each inlet pipe of the main body, and the discharge circulation pipe for collecting the cooling water discharged from each heat exchange tube of each of the main body to an external cooling tower Further comprising a heat exchange system.

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