JPS6383585A - Heat exchanger - Google Patents

Abstract

PURPOSE:To permit the heating or cooling of a small amount of liquid, whose heat is to be exchanged, in a short period of time, by a method wherein outflow ports are provided at scattered spots in the lengthwise direction of a liquid outflow pipe and the liquid, which flows down through the outflow ports of the liquid outflow pipe and whose heat is to be exchanged, is brought into contact with a heat medium pipe, finned horizontally. CONSTITUTION:Liquid, whose heat is to be exchanged, is introduced from a liquid introducing pipe 8 into a liquid introducing chamber 9. Liquid outflow pipes 3 are provided between both ends of a lid body 2b and one end of the liquid outflow pipe 3 communicates with the liquid introducing chamber 9. Long hole type outflow ports 5 equally spaced are bored in the upper part of said pipe 3 in the lengthwise direction. A heat medium introducing pipe 10, through which heat medium is introduced, is provided at the left lower part of a casing 2a and said pipe 10 communicates with a heat medium introducing chamber 11. Both ends of heat medium pipes 1 are allowed to communicate with the heat medium introducing chamber 11, a heat medium communicating chamber 12, a heat medium takeout chamber 14 and the heat medium communicating chamber 15 while the heat medium pipe 1 is provided with fins 6 at both sides thereof. A liquid flow-down type heat exchanger is constituted in such a manner whereby the liquid, whose heat is to be exchanged, flows down, heat exchange is effected on contact with the heat medium pipes 1 of an uppermost stage, further, the heat exchange is effected on contact with the heat medium pipes 1 of second, third ...stages sequentially whereby the liquid may be kept at a predetermined temperature.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a heat exchange device for heating and cooling gutter heat exchange liquids such as water, chemicals, seawater, and the like.

[Background technology] In modern society, the applications of heat exchange equipment are extremely difficult to control.
It has come to be used widely, even in the field of waste (173 + Peng Chuu EJ + nm 4? Da Ding?). However, the heat exchange device between liquids has remained the same as before and has remained largely unchanged ( By the way, in the conventional liquid-to-liquid heat exchange device, as shown in Fig. 3, a large number of heat medium pipes 1' through which the liquid serving as a heat medium passes are arranged in a staggered manner in a tank 2'. The storage heat exchange method is used in which the heat of the heat transfer pipe 1' is exchanged with the liquid to be heat exchanged filled in the tank 2'.In other words, when heating the liquid to be heat exchanged, the heat in the tank 2' is heated. The tank 2' is filled with a low-temperature liquid to be heat exchanged, and a heat medium such as hot water is passed through the heat medium pipe 1' to heat the liquid to be heat exchanged in the tank 2'.However, in such a conventional example, Since the large amount of liquid to be heat exchanged that can be filled in the tank 2' is heated or cooled, there is a drawback that it takes a long time to wait for the liquid to be heat exchanged to reach a predetermined temperature. (There is a disadvantage that the heat source of the heat medium is burdened all at once. Also, it takes time to heat a large amount of the liquid to be heat exchanged, so it is difficult to separate the tank 2' from the liquid to be heat exchanged.) The drawback was that there was a lot of heat radiated to the outside through the cable, which resulted in a lot of energy loss and poor thermal efficiency.

[Object of the Invention] The present invention has been made in view of the points described above, and an object of the present invention is to heat or cool a small amount of liquid to be heat exchanged in a short time and to shorten the waiting time. Moreover, the thermal load placed on the heat transfer pipe is small (and the temperature is quickly recovered without putting a burden on the heat source).Furthermore, the heat can be heated to or cooled down to the specified temperature in a short time, so there is less heat dissipation to the outside. It is an object of the present invention to provide a heat exchange device that improves thermal efficiency with less heat.

[Disclosure of the Invention] The heat exchange device of the present invention has a liquid outflow pipe 3, through which the liquid to be heat exchanged is sent, installed in the upper part of the heat exchange chamber 4, and a flow system in which the liquid to be heat exchanged flows down into the liquid outflow pipe 3. The outlets 5 are scattered in the longitudinal direction of the liquid outflow pipe 3, and the heat medium pipe 1 through which the heat medium flows is installed in the heat exchange chamber 4 below the liquid outflow pipe 3, and projects horizontally into the heat medium pipe 1. The fin 6 is provided, and the drawbacks of the conventional example are solved by configuring as described above.In other words, by configuring as described above,
The liquid to be heat exchanged flows down from the outlet 5 of the liquid outflow pipe 3, and the flowing liquid to be heat exchanged contacts the heat medium pipe 1 and is heated or cooled by heat exchange. The liquid to be heat exchanged can be heated or cooled in a short time, shortening the waiting time.Furthermore, the load on the heat transfer pipe 1 is small, and the temperature can be recovered quickly without putting a burden on the heat source. The heat exchange liquid can now be heated or cooled to a desired temperature, and it can also be heated or cooled to a predetermined temperature in a short time, reducing heat radiation to the outside and improving thermal efficiency. Furthermore, the heat medium pipe 1 has fins 6
By protruding in the horizontal direction, even if the liquid to be heat exchanged flowing down from above only contacts the upper side of the heat medium pipe 1, the contact area becomes large and the heat exchange coefficient does not decrease, and the heat exchange rate of the heat medium pipe 1 is increased. It has become possible to reduce the number of pieces and make it structurally cheaper.

The present invention will be explained in detail below with reference to the drawings.

As shown in Fig. 1, a plurality of liquid outflow pipes 3 are installed at equal intervals in the upper part of the heat exchange chamber 4, and outlet ports 5 are provided at equal intervals in the longitudinal direction on both sides of the upper part of the liquid outflow pipes 3. It is perforated. This liquid outflow pipe 3 is supplied with a liquid to be heat exchanged, which is a liquid to be heated or cooled.

Below the liquid outflow pipe 3 in the heat exchange chamber 4, a plurality of heat medium pipes 1 are installed vertically and horizontally. The heat medium pipes 1 are arranged in a staggered manner, and horizontally projecting fins 6 are integrally provided on both left and right sides of the heat medium pipes 1 by welding or the like.

A heat medium is supplied to this heat medium pipe 1.

That is, when heating, hot water is supplied as a heat medium from a boiler or the like, and when cooling, cold water is supplied from a cooler or the like.

The descending type heat exchange device of the present invention is configured in this way, and when the liquid to be heat exchanged is supplied to the liquid outflow pipe 3, the liquid outflow pipe 3
The liquid to be heat exchanged flows down from the outlet 5 of the heat exchanger, contacts the heat medium pipe 1 on the uppermost stage to exchange heat, and then 2F! Eyes, 3rd row・
. . . sequentially contact the heat medium pipe 1 to exchange heat and bring the liquid to be heat exchanged to a predetermined temperature. Nihareken 8 and Ministry Line 1 r-”t
Even if the liquid to be heat exchanged comes into contact only with the upper side of the 7'/Shinku right ten-mata ^-keikae station 1, the heat exchange area does not become small.

like this! The fII heat exchange device is a wastewater separation device,
Used in evaporators, deep bed separators, seawater separators, coolers, etc. In the case of a wastewater separation device, wastewater as a liquid to be heat exchanged is made to flow down from the outlet 5 of the liquid outlet pipe 3, and the heat medium Ir! 1
A heat medium such as hot water is passed through the wastewater to heat the wastewater and vaporize the water, thereby concentrating the wastewater. In the case of an evaporator, a chemical liquid is caused to flow down from the outlet 5 of the liquid outflow pipe 3 as a liquid to be heat exchanged, and hot water is passed through the heat transfer pipe 1 to heat the chemical liquid and evaporate it at a low temperature. In the case of a frozen ground separator, the frozen ground is made to flow down from the outlet 5 of the liquid outflow pipe 3, and hot water is passed through the heat transfer pipe 1 to evaporate the moisture in the frozen ground to concentrate the frozen ground (to form a solid substance). In the case of a seawater separator, seawater flows down from the outlet 5 of the liquid outflow pipe 3, hot water is passed through the heat transfer pipe 1, and water in the seawater is evaporated to produce salt or fresh water.

Next, a specific embodiment of the precipitation type heat exchange device of the present invention will be described. As shown in FIG. 2, an outer box 2 is formed by covering the opening of the upper surface of the trunk box 2a with a lid 2b, and a heat exchange chamber 4 is formed within the outer box 2.

A liquid introduction pipe 8 through which the liquid to be heat exchanged is introduced is provided at one end of the lid body 2b. The liquid to be heat exchanged is introduced from 8 into the liquid introduction chamber 9. Lid body 2b
A liquid outflow pipe 3 is installed between both ends of the liquid outflow pipe 3, and one end of the liquid outflow pipe 3 is communicated with the inside of the liquid introduction chamber 9. At the top of the liquid outflow pipe 3, elongated hole-shaped outflow ports 5 are provided at equal intervals in the longitudinal direction.
It is perforated. rf! A heat medium introduction pipe 10 through which a heat medium is introduced is provided at the lower left side of the four-box 2a, and the heat medium introduction pipe 1° is communicated with the heat medium introduction chamber 1. Heat medium introduction chamber 1
] A heat medium communication chamber 12 is provided above the heat medium through a partition plate. A heat medium outlet pipe 13 is provided at the upper right side of the trunk box 2a, and the heat medium outlet pipe 13 is communicated with a heat medium outlet chamber 14. A heat medium communication chamber 15 is provided below the heat medium outlet chamber 14 via a partition plate.

A plurality of heat medium pipes 1 are installed in the body tube 2b so as to extend between both ends of the heat medium pipes 1. and 1 heat medium communication chamber 15, and fins 6 are provided on both sides of the heat medium W1. Thus, the heat medium is introduced from the heat medium introduction pipe 10 into the heat medium introduction chamber 1], the heat medium is supplied from the heat medium introduction chamber 1 to the heat medium pipe 1 in the lower part, and passes through the heat medium pipe 1 in the lower part. The heat medium flows through the heat medium communication chamber 15 to the heat medium pipe 1 in the middle part, and
The heat medium that has passed through the heat medium pipe 1 in the upper part is passed through the heat medium communication chamber 12.
The heat medium that flows through the heat medium pipe 1 in the upper part enters the heat medium outlet chamber 14.
The heat medium exits through the heat medium outlet pipe 13.

A discharge drain 16 is provided on the bottom plate of the trunk box 2b, and the heat-exchanged material is discharged from the discharge drain 16. A tray 17 is attached to the bottom of the box 2b.

[Effects of the Invention] As described above, the present invention includes installing a liquid outflow pipe through which the liquid to be heat exchanged is sent above the heat exchange chamber, and an outlet through which the liquid to be heat exchanged flows down into the liquid outflow pipe. The heat exchanger tubes are scattered in the longitudinal direction of the outflow pipes, and the heat medium pipes through which the heat medium flows are installed in the heat exchange chamber below the liquid outflow pipes, so that the liquid to be heat exchanged flows down from the outlet of the liquid outflow pipe. The flowing liquid to be heat exchanged comes into contact with a heat transfer pipe and is heated or cooled by heat exchange, and a small amount of liquid to be heat exchanged can be heated or cooled in a short time, reducing the waiting time. In addition, the load on the heat transfer pipe is small, so there is no burden on the heat source (and the temperature recovery is quick), and the liquid to be heat exchanged can be heated or cooled to the desired temperature. Furthermore, it can be heated to and cooled down to a predetermined temperature in a short time, and less heat is radiated to the outside (which improves thermal efficiency.
This can contribute to saving thermal energy, and since the fins are made to protrude horizontally from the heat medium pipe, the fins can be used even if the liquid to be heat exchanged flowing down from above only contacts the upper side of the heat medium pipe. The contact area is large (as a result, the heat exchange rate does not decrease), and the number of heating KWs can be reduced, making the structure inexpensive.

[Brief explanation of the drawing]

Figure 2 is a partially broken perspective view of a specific embodiment of the same as above, and a partial cross-section of a heat transfer pipe; Figure 3 is a cross-sectional view of a conventional 1 is a cross-sectional view of an example, 1 is a heat medium pipe, 3 is a liquid outflow pipe, 4 is a heat exchange chamber, and 5 is an outflow port.

Claims (1)

[Claims] [1] A liquid outflow pipe through which the liquid to be heat exchanged is sent is installed in the upper part of the heat exchange chamber, and outflow ports through which the liquid to be heat exchanged flows down into the liquid outflow pipe are scattered in the longitudinal direction of the liquid outflow pipe,
A heat exchange device characterized in that a heat medium pipe through which a heat medium flows is installed in a heat exchange chamber below a liquid outflow pipe, and the heat medium pipe is provided with fins projecting in the horizontal direction.