JPS62138690A - Water-proof construction of heat accumulating tank - Google Patents

Abstract

PURPOSE:To hold durability in a long term by heat-fusing watertightly both end sections of a thermoplastic joining member respectively to the inner circumferential face of an inner cylinder member and the surface of a water-proof sheet. CONSTITUTION:This heat accumulating tank is provided with a body of concrete as one body with the side wall 1, bottom wall 2, and partition wall 3. The inside is divided into two heat accumulating rooms 4 and 5 by the partition wall 3. The inner wall faces of the heat accumulating rooms 4 and 5 are covered with a heat insulating layer 6, and on this heat insulating layer 6 a further thermoplastic water-proof sheet 7 is spreaded. The partition wall 3 is provided with a communication hole 8 which pierces the partition wall 3. Both heat accumulating rooms 4 and 5 are connected by this communicating hole 8. This communication hole 8 is formed when concrete is filled to the partition wall 3, and for forming of this communication hole 8 a pipe 9 made of, for instance, vinyl chloride, polyethylene, glass fiber reinforced resin, etc. of a length equal to the thickness of the partition wall 3 is used as a pattern form. After this forming both end sections flush with the wall face of the partition wall 3 are left. Because in this state water can leak into the body of concrete the pipe 9 of the communication hole 8 is treated with water-proofing by inserting a water-proof composite member 10 and the both ends of the member 10 are heat-fused to the ends of the pipe 9.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a waterproof structure for a heat storage tank used to store a heat medium such as dry water or cold water for air conditioning or heating.

[In recent years, thermal storage heat pump systems and solar hot water supply systems are rapidly becoming popular as air-conditioning devices in buildings.In these systems, hot or cold water is used as a heat medium in a heat storage tank. Many of them are designed to store. This heat storage tank usually has a rectangular shape and is often installed underground in a building.The bottom wall, side walls, and top wall of the tank are made of concrete, and a heat insulating layer is provided on the inner surface of the tank. It is generally constructed by applying waterproofing treatment to the surface of the heat insulating material layer.

In a large-sized heat storage tank, the interior thereof is divided into a plurality of heat storage chambers by partition walls, and the heat storage r is made to pass through the heat storage chambers (through holes formed by pipes provided in the partition walls). Further, a water supply/drainage port for the piping system is provided in the side wall or the bottom wall, and the end of the piping is formed on the surface of the heat insulating material layer. It is necessary to waterproof these complicated through-holes and water supply/drainage ports, but when waterproofing these parts, as shown in Figures 8 and 9,
A short pipe 03 is further inserted inside the pipe 01 which is provided through the pipe 01. An opening 04 on the inner wall of the communication hole or water supply/drainage port is formed. Then, a waterproof sheet 02 is stretched over the surface of the frame A so as to cover this opening 04. In this state, the frontage is A hole 05 with a diameter d slightly smaller than the diameter of 04 is aligned and drilled into the waterproof sheet 1 at 02.The peripheral part 02a of the hole 05 of the waterproof sheet 02 is heated and softened and inserted into the short pipe 03. The peripheral edge portion 02a of the hole 05 of the waterproof sheet 02 is watertightly joined to the inner circumferential surface of the folded short tube 03.

My mouth is about to tm. However, the waterproof sheet stretched over the surface of the frame Δ is 0.
2, it is difficult to transfer the center position of the frontage 04 to the waterproof sheet 02, and therefore a high degree of skill is required. Further, since the peripheral edge portion 02a of the hole 05 of the waterproof sheet 02 is forcibly folded into the short tube 03, a tensile force is locally applied to the folded portion of the waterproof sheet 02, causing damage to the waterproof sheet 02.

Furthermore, since the waterproof sheet 02 is stretched locally, there is a problem that the waterproof sheet 02 becomes thinner at the end of the ship, which impairs long-term durability.

Accordingly, the present invention relates to a novel waterproof structure for heat storage (n) that solves these problems, in which a heat insulating layer is provided on the inner wall surface, and the interior is separated by a partition wall. !In a heat storage tank which is divided into a number of heat storage chambers and these heat storage chambers are connected to each other by communication holes penetrating the partition wall, and the ends of the communication holes are formed flush with the partition wall surface, A thermoplastic waterproof sheet 1 to be extended and attached to the surface of the heat insulating material layer, a thermoplastic inner cylinder member inserted into the communication hole and attached, and one end of the thermoplastic inner cylinder member The thermoplastic joining member is in contact with the inner circumferential surface of the thermoplastic inner tube, and the other end portions are formed into a shape capable of contacting the surface of the thermoplastic waterproof sheet, and both ends of the thermoplastic joining member are connected to the thermoplastic inner cylinder. Since the inner peripheral surface of the member and the surface of the thermoplastic waterproof sheet are each watertightly heat-sealed, the perforations in the thermoplastic waterproof sheet opposite to the communication holes are made to have approximately the same diameter as the communication holes. This is extremely easy, and both ends of the thermoplastic bonding member are watertightly heat-sealed to the inner circumferential surface of the thermoplastic inner cylinder member inserted into the communication hole and the surface of the thermoplastic waterproof sheet, respectively. The effect of local tensile force on the waterproof sheet and the inner cylinder member or the joint member is suppressed, and damage is prevented, and the waterproof sheet and the inner cylinder member or the joint member are stably provided, so that it is long; Maintains durability.

Furthermore, the waterproof sheet and the inner cylindrical member (and the joints a) are made of thermoplastic materials, so each joint can be heat-sealed watertightly, and the area around the through hole f. Waterproofing treatment is further enhanced.

``Branch'' ``Dan'' The present invention will be explained below with reference to the illustrated embodiments.

Figure 1 is a vertical sectional view of the heat storage tank, which has side walls 1
, has an integral concrete structure consisting of a bottom wall 2 and a partition wall 3, and the inside is partitioned by the partition wall 3 into two heat storage chambers 4 and 5. The inner wall surface of each heat storage chamber 4.5 is covered with a heat insulating material layer 6, and a thermoplastic waterproof sheet 7 is roughly stretched over the surface of this heat insulating material F7J6. Although not shown, the upper part of this heat storage tank is also covered with a top wall having a similar structure, and the heat storage tank is buried in the ground, and the heat storage chamber 4
Hot water or cold water for heating and cooling is stored in the 5°C.

The heat insulating layer 6 blocks heat exchange with the outside, and the thermal No. 1 plastic waterproof sheet 7 prevents the hot (cold) water from seeping into the heat insulating layer 6 and reducing the heat insulating effect.

Above) The thermoplastic waterproof sheet 7 is made of vinyl chloride resin or other thermoplastic elastomer (for example, monoolefin copolymer rubber and polyolefin (thermoplastic elastomer partially cross-crosslinked by heating and kneading fat) A mixture of polymers, etc.) consisting of heat-fused young bamboo material.

The partition wall 3 is provided with five communication holes 8 passing through it, and the two heat chambers 4 and 5 communicate with each other through the communication holes 8. Since the hot (cold) water is always stored inside this communication hole 8, waterproofing treatment is also applied to this part in order to prevent the hot (cold) water from seeping into the concrete structure. There is a need.

FIG. 2 is an enlarged sectional view showing the side of the communication hole 8) in more detail. This communication hole 8 is connected to the concrete 1 of the partition wall 3.
Although it is formed during pouring, generally a pipe 9 made of vinyl chloride, polyethylene, glass fiber reinforced resin, etc., which determines the wall thickness and length of the partition wall 3 to form the communication hole 8, is used as a formwork. After that, both ends of the partition wall 3 are used.
It is left flush with the wall surface, and in this state water leaks into the concrete 1 to the building structure, so a waterproof combination member 10 is installed to waterproof the pipe 9 in the communication hole 8. It is formed by heat-sealing both ends of the insert.

The waterproof combination member 10 is cut out from the same material as the thermoplastic waterproof sheet 7, and when forming the waterproof combination member 10, first, one side is made of the partition wall 3 and the heat insulating material on both sides. The overlapping part of the rectangle is measured to have a length corresponding to the thickness of the layer 6, and the other side is the length of the overlapping part added to the inner peripheral surface length of the communication hole 8. The thermoplastic inner cylindrical member 11 is formed by heat-sealing the overlapping portions (see FIG. 3).
.

Further, as shown in FIG. 4, the members provided at both ends of the thermoplastic inner cylindrical member 11 can be fitted into the sheet, and one end thereof can be fitted into the inner circumferential surface of the thermoplastic inner cylindrical member 11 and come into contact with the seat. A hole with an inner diameter d was cut out, and the other end had a diameter that could contact the surface of the thermoplastic waterproof sheet 7, and the cutout disk was cut out at an angle of about a quarter. The edges of the remaining notched annular plates 13 are overlapped and heat-sealed to form a frusto-conical thermoplastic joining member 12. Furthermore, the small-diameter end 14 side of this thermoplastic joining member 12 is coaxially fitted into both ends of the thermoplastic inner cylinder member 11, and the contact portions brought into contact with the inner circumferential surface of the thermoplastic inner cylinder member 11 are heated. Apply pressure and heat seal.

After the waterproof combination member 10 formed of the thermoplastic inner cylinder member 11 and the thermoplastic joining member 12 is inserted and aligned inside the tube 9, the thermoplastic joining member 1
The vicinity of the large-diameter end 15 of 2 is heated to make it flexible, and this portion folded back in the diametrical direction is formed into a shape that matches the surface of the thermoplastic waterproof sheet +7, that is, a brim portion, and the brim portion and the heat The plastic waterproof sheet 7 is heated and pressurized to be thermally fused.

When forming the waterproof combination member 10 described above, the small diameter end 14 side of the thermoplastic joining member 12 was fitted into the inner peripheral surface of the thermoplastic inner cylinder member 11. It may be formed in a shape such that the small diameter end 14 side of the thermoplastic joining member 12 is fitted into the outer circumferential surface.

Since the embodiment shown in FIGS. 1 to 4 is constructed as described above, the thermoplastic waterproof sheet 7, which is spread and attached to the surface of the insulation layer 6 of the partition wall 3, is When cutting out a hole opposite to the communication hole 8, it is no longer necessary to align the hole with a diameter slightly smaller than the diameter of the communication hole 8 and cut it into the thermoplastic waterproof sheet 7. 8
It may be slightly larger or smaller than the size of
The holes on the thermoplastic waterproof sheet 7 can be formed very easily, and there is no need to forcibly fold the peripheral edge of the hole in the thermoplastic waterproof sheet 7 inward into the communicating hole 8, and this part can be pulled. Since the action of force is eliminated, damage to the thermoplastic waterproof sheet 7 is prevented, and there are no extremely thin parts, so long-term durability can be maintained, and the thermoplastic inner cylinder member 11 and the thermoplastic joint member 12 Since the thermoplastic inner cylinder member 11 made of
Since only the large diameter end 15 side of the thermoplastic joining member 12 is thermally fused to the surface of the thermoplastic waterproof sheet 7,
It can be integrally formed with the thermoplastic waterproof sheets 1 to 7 in a watertight manner without requiring any skill.

FIG. 6 is an exploded perspective view showing a modified example of the thermoplastic joining member 12 according to the present invention, and FIG. 7 is an assembled perspective view thereof. In both figures, the thermoplastic inner cylindrical member 21 is made of the same material as the thermoplastic waterproof sheet 7, similar to the thermoplastic inner cylindrical member 11 of the previous embodiment. The thermoplastic joining member 22 as a member that is inserted into both ends of the thermoplastic inner cylinder member 21 has a cylindrical fitting part 23 having a diameter large enough to come into contact with the inner peripheral surface of the thermoplastic inner cylinder member 21. This fitting part 23 has a collar part 24 at one end and is integrally molded. Then, as shown in FIG. 7, the fitting portion 23 of the thermoplastic joining member 22 is brought into contact with and fitted into the inner peripheral surface of the thermoplastic inner cylinder member 21, and this fitting portion is heated and heated. The waterproof combination member 20 is formed by pressing and heat-sealing.

The thus formed waterproof combination member 20 is inserted into the communication hole 8 of the pipe 9 provided in the partition wall 3, and the collar portion 24 of the thermoplastic joining member 22 is heated and pressurized to form the thermoplastic material. It is thermally fused to the surface of the waterproof sheet 7 to make the complicated portion of the communication hole 8 watertight. This waterproof combination part 120 has the same function and effect as the waterproof combination member 10.

This embodiment is easy to heat-seal to the surface of the thermoplastic waterproof sheet 7.

l Bean skin 11 As described above, in the present invention, a heat insulating material layer is provided on the inner wall surface, and the interior is divided into a plurality of heat storage chambers by partition walls, and these heat storage chambers are communicated with each other by communication holes penetrating the partition walls. In the heat storage tank in which the ends of the communicating holes are formed flush with the partition wall surface, a thermoplastic waterproofing sheet I- is spread and attached to the surface of the heat insulating material layer, and A thermoplastic inner cylindrical member that is inserted and attached, one end portion of which is in contact with the inner circumferential surface of the thermoplastic inner cylindrical member, and the other rear portion of which is in contact with the surface of the thermoplastic waterproof sheet and formed into a vine shape. The thermoplastic bonding member is made of a thermoplastic bonding member, and both ends of the thermoplastic bonding member are watertightly heat-sealed to the inner peripheral surface of the thermoplastic inner cylindrical member and to the surface of the thermoplastic waterproof sheet. Puncturing the plastic waterproof sheet does not require any skill and can be handled very easily. Since the part is watertightly heat-sealed to the surface of the thermoplastic waterproof sheet, the action of localized tensile force on the waterproof sheet and locally generated extremely thin parts can be avoided, and the communication hole 11m etc. can be avoided. It is possible to easily and effectively make a part watertight in a stable state.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional view of the heat storage tank, Fig. 2 is a partially enlarged sectional view thereof, Fig. 3 is an exploded perspective view of a waterproof member that is inserted into the communication hole, and Fig. 4 is a perspective view of the combination thereof. 5 is a manufacturing explanatory diagram of the both-end joining member in FIG. 4, FIGS. 6 and 7 are sectional views similar to FIGS. 3 and 4 showing other embodiments,
FIGS. 8 and 9 are cross-sectional views showing the conventional waterproof structure and function. 1... Side wall, 2... Bottom wall, 3... Partition wall, 4...
- Heat storage chamber, 5... Heat storage chamber, 6... Heat insulation layer, 7...
・Thermoplastic waterproof sheet, 8... communicating hole, 9... pipe,
DESCRIPTION OF SYMBOLS 10...Waterproof combination member, 11...Thermoplastic inner cylinder member, 12...Thermoplastic joining member, 13...Notched annular plate, 14...Small diameter end portion, 15...Large Diameter end portion, 20... Waterproof combination member, 21... Thermoplastic inner cylinder member, 22... Thermoplastic joining member, 23... Fitting part,
24...Brim part.

Claims (1)

[Claims] A heat insulating material layer is provided on the inner wall surface, and the interior is divided into a plurality of heat storage chambers by a partition wall, and these heat storage chambers are communicated with each other by a communication hole penetrating the partition wall, and an end of the communication hole is connected to the partition wall surface. In the heat storage tank, the thermoplastic waterproof sheet is spread and attached to the surface of the heat insulating layer, and the thermoplastic inner cylindrical member is inserted into and attached to the communication hole. and a thermoplastic joining member formed in such a shape that one end portion contacts the inner circumferential surface of the thermoplastic inner cylinder member and the other end portion contacts the surface of the thermoplastic waterproof sheet, and the thermoplastic joining member A waterproof structure for a heat storage tank, characterized in that both ends of the thermoplastic inner cylinder member are watertightly heat-sealed to the inner circumferential surface of the thermoplastic inner cylinder member and the surface of the thermoplastic waterproof sheet, respectively.