JPS621576Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a heat exchanger for heating, heating using hot spring water, cooling using underground water, etc.
Concerning an improvement of the invention No. 1576068 (Utility Model Publication No. 59-13509). That is, in the heat exchanger according to the invention of Utility Model Registration No. 1576068, (a) the hot air exhaust pipe 7 is provided at the upper part of the main body 1, and (b) the wind (air flow) inside the main body 1 is The flow first flows downward inside the central inner cylinder 2, and then flows through the wind direction guide 4.
The heat exchangers 8 and 9 flow upward in the heat exchange chambers 8 and 9 in the opposite direction.

When this is used in a greenhouse, hot air is blown out from above the main body 1, so if a duct is connected to the exhaust pipe 7, the duct is at the top and blocks sunlight, and the duct (vinyl pipe, etc.) It obstructs the passage of workers, and especially when the crops sprout, the hot air hits the new shoots directly and inhibits their growth.Furthermore, it is difficult to connect the duct to the exhaust pipe 7. If the hot air is blown out directly from the exhaust stack 7, the exhaust stack 7 and the supply cylinder 6 are installed close to each other at almost the same height, so some of the hot air blown out from the exhaust stack 7 The air is sucked into the supply cylinder 6, reducing the amount of circulating air and the amount of heat exchange. That is, there is a disadvantage that the temperature of the air sucked from the feed cylinder 6 increases, the temperature difference with the water temperature decreases, and the amount of heat exchange decreases, and furthermore, the air (air flow) passes through the inner cylinder 2. is inner cylinder 2
It is necessary to increase the inner diameter of the main body 1 considerably.
The problem is that the outer diameter of the main body 1 becomes large, resulting in an increase in the installation area and a reduction in the cultivated area, which is undesirable.Also, changing the direction of the wind by 180 degrees within the main body 1 causes an increase in air resistance, which is undesirable. There is a point.

The present invention is an improved invention that solves the above-mentioned drawbacks and problems. Hereinafter, the embodiments will be described in detail with reference to the drawings.

A heat exchange chamber 8 is provided between a bottomed cylindrical main body 1 extending in the vertical direction and an inner cylinder 2 having a diameter smaller than that of the main body 1 by a required amount.
In the heat exchanger provided with 9, upper and lower annular heat exchange chambers 8 and 9 are arranged in the gap between the main body 1 and the inner cylinder 2, and between the heat exchange chambers 8 and 9, Chambers 10, 11, 12 are provided above the upper heat exchange chamber 8 and below the lower heat exchange chamber 9,
The upper and lower chambers 11 and 12 are separated so that they can communicate with each other, and a large number of concentric coil tubes 13...14 are housed in the upper and lower heat exchange chambers 8 and 9.
The ends of the upper and lower coil tubes 13...14 are connected through the chamber 10 so that they are connected sequentially from the innermost to the outermost, and the ends of the lower coil tubes 13 are connected to the upper coil tubes. The ends of the lower coil tube 14 are connected to the header 15 in the chamber 11 and to the header 16 in the lower chamber 12, respectively, and the wind for heat exchange is prevented from continuously passing through the inner tube 2. The inner cylinder 2 is sealed and fixed to one of the upper and lower bases of the main body 1, and an air intake part 2 is provided above the upper chamber 11 of the main body 1.
9, a required number of exhaust pipes are provided protruding from the lower peripheral wall of the main body 1 so that the heat exchanged air flows only in one direction from above to below.

In the first embodiment shown in Figure 1, the lower end of the inner cylinder 2 is fixed to the lower base 3 of the main body 1, and the upper end of the inner cylinder 2 forms a conical guide portion 4. A blower 5 is provided a required length above the guide portion 4, and a required number of ventilator tubes 7... are protruded from the lower side peripheral wall of the main body 1.
In this case, the blower 5 is of a type that blows air downward.

In the second embodiment shown in FIG. 3, the upper end of the inner cylinder 2 is fixed to the upper bottom 21 of the main body 1, and
A blower 19 that sends air downward is supported at the lower part of the main body 1, and a required number of exhaust pipes 18 are provided below the blower 19 to protrude from the lower peripheral wall of the main body 1. The pipes 6 and 20 are connected to a drain port 17 provided in the upper header 15 and a water supply port 27 provided in the lower header 16, respectively.

In the present invention, as described above, the wind flowing from the top to the bottom of the outside of the inner cylinder 2 provided concentrically in the bottomed cylindrical main body 1 is transmitted through the multi-striped coil tubes in the heat exchange chambers 8 and 9. 13...14... heat exchange is performed between the water flowing from the bottom to the top, and this heat exchange results in a so-called counterflow, making it highly efficient. At this time, the coiled tubes 13...14...
By making the diameter relatively small, a large number of coiled tubes can be installed in the heat exchange chambers 8, 9 to increase the surface area for heat exchange, resulting in improved heat exchange.
Furthermore, a large number of coiled tubes 1 in the upper heat exchange chamber 8
3, 13... and the same number of coil tubes 14, 14... in the lower heat exchange chamber 9 mean that the distance between the lower end of each of the former and the upper end of each of the latter is from the innermost circumference of the former to the outermost circumference of the latter. Since the upper header 15 and the lower header 16 are connected sequentially from the outermost one to the innermost one of the latter, the upper header 15 and the lower header 16 are Each of the multiple coiled tubes 13...14... between them has the same overall length, and in this respect as well, it is a truly rational configuration as a heat exchanger, and its features in these respects. Said utility model registration No. 1576068
Although it is similar to the device No. 1576068, the present invention solves the drawbacks and problems of the device No. 1576068 in the following points, and brings about greater effects.

In the present invention, the inner cylinder 2 is sealed and fixed to one of the upper and lower bases of the main body 1 so that the air for heat exchange does not pass through the inner cylinder 2, and
There is an air intake part 29 above the upper chamber 11 of the main body 1, and a required number of exhaust pipes are provided on the lower peripheral wall of the main body 1 so that the heat exchanged air flows only in one direction from above to below. (a) The hot air duct is located close to the ground, which prevents the above-mentioned drawbacks of the invention of Utility Model Registration No. 1576068 (i.e., hot air inhibits the growth of new shoots, obstructs traffic,
(b) Since the air supply port is located at the top of the main body and the exhaust port is located at the bottom of the main body, hot air blown from the exhaust port can be prevented from flowing back to the air supply port. (c) By locating the air supply port at the top and the exhaust port at the bottom, and by spacing them apart, uneven temperature inside the greenhouse can be eliminated and uniform heating can be achieved, and (d) the exhaust port is opened close to the ground. As a result, the air flow on the ground surface is large, heat recovery from the ground is good, and energy saving can be achieved.Furthermore, (e) since no wind flows inside the inner cylinder 2, its inner diameter can be made considerably smaller. It is possible to reduce the size of the main body, and by reducing the installation area, it can bring about the effects of increasing the cultivated area.Furthermore, (f) the wind flows in only one direction from the top to the bottom. (There is no "180° change in direction" as in the invention of Utility Model Registration No. 1576068)
This had the great effect of reducing air resistance and increasing the amount of ventilation.

[Brief explanation of the drawing]

The drawings show an embodiment of the heat exchanger according to the present invention. Fig. 1 is a cross-sectional front view showing the piping state of the first embodiment, Fig. 2 is a bottom view of the same as seen from the lower part, and Fig. FIG. 3 is a sectional front view of the second embodiment. 1 is the main body, 2 is the cylinder, 3 is the bottom, 4 and 24 are the conical guide parts, 5 and 19 are the blowers, 6 and 20 are the pipes, 7 is the ventilation cylinder, 18 is the exhaust pipe, 8 and 9 are the heat Exchange room, 10, 11, 12 are chambers, 13, 14
is a coiled tube, 15 and 16 are headers, 17 and 27
21 is an upper bottom, 26 is a pump, 28 is a conical guide plate protruding from the lower bottom 3, 2 is a drain port and a water supply port, respectively.
9 is the air intake part.

Claims (1)

[Claims for Utility Model Registration] (1) Inside the vertically oriented cylindrical body 1 with a bottom, upper and lower annular heat exchange chambers are provided in the gap between the body 1 and the inner cylinder 2, which has a smaller diameter than the body 1. Chambers 10 and 9 are provided between the heat exchange chambers 8 and 9, above the upper heat exchange chamber 8, and below the lower heat exchange chamber 9, respectively.
11 and 12, and spaced apart so that the upper and lower chambers 11 and 12 can communicate with each other,
A large number of concentric coiled tubes 13...14... are housed in the upper and lower heat exchange chambers 8, 9, and the ends of the upper and lower coiled tubes 13...14... are arranged from the innermost to the furthest. The upper coil tube 13 is connected through the intermediate chamber 10 so as to be sequentially connected to the outer periphery, and the upper coil tube 13...end is connected to the upper chamber 1.
In the heat exchanger, the inner tube 2 is connected to the header 15 in the lower chamber 12, and the lower coil tube 14...end is connected to the header 16 in the lower chamber 12. The inner cylinder 2 is sealed and fixed to one of the upper and lower bottoms of the main body 1 so as not to pass through the inner cylinder 2, and there is an air intake part 29 above the upper chamber 11 of the main body 1;
A heat exchanger characterized in that a required number of exhaust pipes are provided protruding from the lower peripheral wall of the main body 1 so that the heat exchanged air flows only in one direction from above to below. (2) Utility model registration In the heat exchanger according to claim 1, the lower end of the inner cylinder 2 is fixed to the lower bottom 3 of the main body 1, and the upper end of the inner cylinder 2 is provided with a conical guide. A heat exchanger characterized in that a portion 4 is formed, and a blower 5 is provided above a required length of the guide portion 4. (3) In the heat exchanger according to claim 1 of the utility model registration claim, the upper end of the inner cylinder 2 is fixed to the upper base 21 of the main body 1, and the lower part of the inner cylinder 2 has a downwardly extending surface. A heat exchanger characterized in that a blower 19 that sends air is supported.