JP2592234Y2 - Heat exchanger - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure in which a plurality of module cores are arranged in parallel to constitute one heat exchanger, and more particularly to a structure in which one module core can be easily attached and detached without leakage of liquid inside.

[0002]

2. Description of the Related Art A heat exchanger in which a plurality of module cores are arranged in parallel has a pair of elongated main tanks arranged in parallel at the top and bottom.
Each core was arranged between them. This module core is provided with a sub tank that is separated vertically
A large number of tubes are arranged between both sub-tanks, and fins are attached to the outer surfaces of the tubes. The upper and lower sub-tanks were removably connected to the upper and lower main tanks, respectively.

[0003]

In such a heat exchanger, since each module core is independent, when one module core is damaged or the like, only the module core can be replaced. However, in this type of conventional heat exchanger, it is necessary to remove all the heat exchanger cores when replacing one module core, or remove the heat exchange medium inside all the module cores and then remove the module core. If not removed, the internal heat exchange medium leaks out. Therefore, there is a disadvantage that the replacement of the module core is troublesome, and it is difficult to perform the replacement quickly. Therefore, the present invention employs the following configuration to solve the above problems.

[0004]

According to the heat exchanger of the present invention, a lower base member 1 and an upper main tank 2 are fixed to a support body in parallel with each other, and between them. A plurality of module cores 3 are interposed in parallel. The main tank 2 has an inlet tank 24 and an outlet tank 25 inside by a main partition 4 parallel to the longitudinal direction.
The plurality of openings 5 are arranged in parallel on the lower surfaces of both tank portions 24 and 25, respectively. A large number of vertical tubes 6 are arranged in a plurality of rows in the module core 3, and the upper ends of the tubes 6 communicate with the upper sub-tank 7, respectively. At the same time, the lower end communicates with the lower sub-tank 8.

Further, the inside of the upper sub-tank 7 is divided into an inlet-side circulation section 26 and an outlet-side circulation section 27 by a partition 9, and a pair of outlets 10 is opened on the upper surface of the upper sub-tank 7 on both sides of the partition 9. A plurality of seats 11 are arranged in the longitudinal direction on the upper surface of the base member 1, and a supporting portion 12 is provided on the lower surface of the lower sub-tank 8, and each module core 3 is connected to the lower surface of the main tank 2 and the base member 1. It is attached to the upper surface so that it can be inserted and removed from their sides. A pair of openings 5 on the lower surface of the main tank 2 are liquid-tightly and removably joined to a pair of outlets 10 of the upper sub-tank 7. Further, the support portion 12 of the lower sub-tank 8 is
It is detachably attached to the seat 11 of the base member 1 via the. Thereby, the heat exchange medium flowing in each module core 3 flows in a U-shape from the inlet side flow part 26 of the upper sub tank 7 to the outlet side flow part 27 of the upper sub tank 7 via the lower sub tank 8. It is composed.

[0006]

When a part of the module cores 3 arranged in parallel is damaged, the heat exchange medium inside only the main tank 2 located at the upper part is extracted, and then each module core 3 is removed.
It is sufficient to remove the module core that needs to be replaced from the width direction of the tank without removing the heat exchange medium, and install a new module core there. At that time, there is no possibility that the heat exchange medium leaks from any of the module cores 3.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the heat exchanger of the present invention will be described with reference to the drawings. FIG. 1 is a partially cutaway front view of the heat exchanger, FIG. 2 is an explanatory view of the lower portion of the module core 3 attached thereto, FIG. 3 is a view taken along the line III-III of FIG. 4, and FIG.
FIG. 4 is a sectional view taken along line IV-IV of FIG. This heat exchanger is most suitable as a heat exchanger for cooling engine cooling water of a vehicle or a ship such as a construction machine having a relatively large engine. Then, the base member 1 and the main tank 2 are vertically separated from each other and arranged in parallel in the engine room, and the main tank 2 is fixed via the mounting portion 28. As shown in FIG. 4, the main tank 2 has an inlet tank portion 24 and an outlet tank portion 25 formed by a main partition 4 parallel to the longitudinal direction.
And divided into two. An inlet pipe 14 and an outlet pipe 15 are provided at one end in the longitudinal direction of the main tank 2, respectively. At the same time, a pair of openings 5 are formed in parallel on the lower surface of the inlet tank portion 24 and the lower surface of the outlet tank portion 25, respectively, by the number of modules.

Next, each module core 3 has a pair of upper sub-tanks 7 and lower sub-tanks 8 above and below, a plurality of rows of tubes 6 being arranged between them, and plate-type fins 17 on its outer surface. Contact fixed. The upper and lower ends of each tube 6 communicate with the upper sub-tank 7 and the lower sub-tank 8 in a liquid-tight manner. The inside of the upper sub-tank 7 is divided into an inlet-side flow portion 26 and an outlet-side flow portion 27 by a partition 9. Such a partition does not exist inside the lower sub-tank 8. Tubes 6 are provided on both sides of the partition 9 of the upper sub tank 7, respectively. Next, on the lower surface of the lower sub-tank 8, a support portion 12 formed of a short columnar protrusion is protruded. The base member 1 is fixed to the lower surface or the like of the engine room, and as shown in FIG. 2, a seat portion 11 composed of a pair of small blocks is fixed to the upper surface thereof in parallel by the number of module cores. Each of the seats 11 is provided with a bolt hole 20. A pair of seats 11
A relatively thick circular rubber material 13 is interposed therebetween.

A hole 21 is provided at the center of the rubber material 13 so as to be aligned with the support portion 12 of the module core 3. The thickness of the rubber material 13 in the axial direction is formed to be thicker than the protruding height of the seat portion 11. This rubber material 13 is a pair of brackets 16.
With this, it is fastened and fixed to the seat portion 11. That is, in a state where the support portion 12 is fitted into the hole 21 of the rubber
A pair of brackets 16 are fitted on both sides of the outer periphery of the bracket 3, the bolt holes provided in the bracket 16 are aligned with the bolt holes of the seat 11, and the bolts 18 inserted therethrough are nuts 19.
Is fastened and fixed. Also, upper sub tank 7
As shown in FIGS. 3 and 1, a flange 22 protrudes outward from the upper end, and a bolt hole 20 is provided in the flange 22. A pair of outflow and inflow ports 10 opened in the flange 22
Are aligned with the pair of openings 5 of the main tank 2, and the upper sub-tank 7 is detachably fixed to the main tank 2 by bolts 18 via packing 23 as shown in FIG. 1. In order to mount such a plurality of module cores 3 between the main tank 2 fixed to the engine room and the base member 1, the following may be performed.

First, a rubber material 13 is fitted to the support portion 12 of the lower sub-tank 8, and the module core 3 is inserted from the side of the main tank 2 and the base member 1. Then, the opening 5 of the main tank 2 and the outflow port 10 of the upper sub-tank 7 are aligned, and the two are liquid-tightly fastened and fixed by a bolt 18 via a packing 23. Next, the support portion 12 of the lower sub-tank 8
A pair of brackets 16 is provided on the outer periphery of the rubber material 13 fitted to
And the outer periphery of the rubber member 13 is fastened and fixed by the bolt 18 and the nut 19 via the seat portion 11 of the base member 1. As described above, the lower sub-tank 8 of the module core 3 is supported by the rubber material 13, and the thickness of the rubber material 13 in the axial direction is formed larger than the height of the seat portion 11 protruding from the base member 1. Material 13 is lower sub-tank 8
Can be elastically supported in the vertical direction. This absorbs the thermal expansion of the module core 3 in use, and easily absorbs the vibration caused by the movement of the vehicle or the like, thereby providing a highly durable heat exchanger.

In FIG. 1, one of the inlet pipes 1
4, high-temperature engine cooling water flows into the inlet tank 24 (FIG. 4), flows down the tube 6 on the left side of the partition 9 via the inlet-side flow sections 26 of the respective module cores 3, and the lower sub-tank 8 U-turn to the outlet tank part 25 of the main tank 2 from the outlet side circulation part 27 of the upper sub tank 7
Distribute to Then, the gas is returned to the engine from the outlet pipe 15. Cooling air is circulated on the outer surfaces of the tubes 6 and the fins 17, and the cooling air cools high-temperature engine cooling water in the tubes.

Next, to remove the module core 3 for inspection, maintenance, replacement, or the like, the following procedure may be taken. First, the engine cooling water in the main tank 2 is supplied to the inlet pipe 1.
4 or the outlet pipe 15, and a pair of brackets 16 supporting the outer periphery of the support portion 12 of the lower sub-tank 8 are removed. Next, the bolt 18 of the upper sub tank 7 is removed,
What is necessary is just to separate between the main tank 2 and the upper sub-tank 7. At this time, the engine cooling water in each module core 3 may be stored inside. Next, FIG. 5 shows a second embodiment of the upper sub-tank 7 in FIG. 4. In this embodiment, a tubular outflow / inlet port 10 protrudes at the center of the upper end of each of a pair of inlet side flow sections 26 and outlet side flow sections 27. The flange provided at each opening edge is detachably connected to the opening 5 of the main tank 2 via a packing 23 by a bolt.

[0013]

According to the heat exchanger of the present invention, each module core 3 communicating with the main tank 2 is arranged in parallel, and the module core 3 is disposed between the lower surface of the main tank 2 and the upper surface of the base member 1. An inlet-side flow portion 26 and an outlet-side flow portion 27 are formed on both sides of the partition 9 of the upper sub-tank 7 so as to be freely inserted and removed from the width direction thereof,
The heat exchange medium flows from the inlet side flow part 26 of the upper sub tank 7 to the outlet side flow part 2 of the upper sub tank 7 via the lower sub tank 8.
Since the U-shaped distribution is performed so as to return to 7,
One module core can be very easily attached and detached for repair or replacement while leaving the other module cores as they are. At this time, if only the heat exchange medium in the main tank 2 is taken out to the outside, there is no possibility that the heat exchange medium leaks out of the module core even if the heat exchange medium in each module is left as it is.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of the heat exchanger of the present invention.

FIG. 2 is an explanatory view showing a support structure at a lower portion of the module core 3 of FIG.

FIG. 3 is a view taken in the direction of arrows III-III in FIG. 4;

FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 1;

FIG. 5 shows another embodiment of the upper sub-tank 7 in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base member 2 Main tank 3 Module core 4 Main partition 5 Opening 6 Tube 7 Upper sub tank 8 Lower sub tank 9 Partition 10 Outflow inlet 11 Seat part 12 Support part 13 Rubber material 14 Inlet pipe 15 Outlet pipe 16 Bracket 17 Fin 18 Bolt 19 Nut Reference Signs List 20 bolt hole 21 hole 22 flange 23 packing 24 inlet tank part 25 outlet tank part 26 inlet side flow part 27 outlet side flow part 28 attachment part

Claims (1)

(57) [Scope of request for utility model registration] 1. A plurality of module cores fixed to a support member in parallel with each other and positioned below and a main tank 2 positioned above the base member 1 and a plurality of module cores interposed therebetween. The main tank 2 is divided into an inlet tank part 24 and an outlet tank part 25 by a main partition 4 parallel to the longitudinal direction, and a plurality of main tanks are provided on the lower surfaces of both tank parts 24, 25. In the module core 3, the upper ends of a large number of vertically arranged tubes 6 communicate with the upper sub tank 7, respectively.
The lower end communicates with the lower sub-tank 8, and the inside of the upper sub-tank 7 is divided into an inlet-side circulation part 26 and an outlet-side circulation part 27 by a partition 9. An outflow / inlet port 10 is opened, a plurality of seats 11 are arranged on the upper surface of the base member 1 in the longitudinal direction, a support portion 12 is provided on a lower surface of the lower sub-tank 8, and each of the module cores 3 is A pair of openings 5 on the lower surface of the main tank 2 are provided between the lower surface of the tank 2 and the upper surface of the base member 1 so as to be freely inserted and removed from the sides thereof. The support portion 12 of the lower sub tank 8 is removably attached to the seat portion 11 of the base member 1 via a rubber material 13, and each of the module cores 3 Heat exchanger that is configured to flow to the U-shaped heat exchange medium is above the sub-tank through the lower sub-tank 8 from the inlet-side flow portion 26 of the upper sub-tank 7 outlet flow 27 flowing through.