KR101737363B1

KR101737363B1 - Roof structure of heat storage water tank

Info

Publication number: KR101737363B1
Application number: KR1020160037802A
Authority: KR
Inventors: 정권찬; 박희수
Original assignee: 정권찬; 주식회사신성플랜트
Priority date: 2016-03-29
Filing date: 2016-03-29
Publication date: 2017-05-19

Abstract

According to the present invention, an upper structure of a heat storage water tank comprises: an inner wall layer (100) covering an upper portion of a hot water storage tank (10); an insulation layer spaced from an upper portion of the inner wall layer (100) to form a heat circulation space (200) between the inner wall layer (100) and the insulation layer; a foam layer (400) formed in an upper portion of the insulation layer (300); and a heat circulation vent (400) of which one side end is positioned in the heat circulation space (200) and the other side end is positioned in the outside, installed by penetrating the insulation layer (300) and the foam layer (400).

Description

Roof structure of heat storage water tank [0002]

The present invention relates to an upper structure of a storage tank, and more particularly, to a structure for storing heat gathered in an upper part of a storage tank to prevent thermal deformation of an upper structure of the storage tank, .

The storage tank is a structure that is installed in the plant facility and stores the hot water generated by the heat exchange, and the hot water that maintains the temperature of about 60 ° C. to about 70 ° C. is stored therein. When long-term hot water is stored in a confined space, thermal stratification occurs. This means that the temperature is distributed in a layer form by the buoyancy due to the density difference between the high temperature and the low temperature air. When this thermal stratification occurs, the upper side of the storage tank is heated.

Korean Laid-Open Patent Application No. 2014-0049731 ("Heat Storage Tank Loop Construction Method", Apr. 24, 2014, hereinafter referred to as Prior Art 1) discloses a loop construction method of a thermal storage tank. As shown in FIG. 1, the loop structure of a conventional thermal storage tank is such that a polyurethane foam or other foam layer surrounds the outside of the heat storage tank and the polyurethane foam and the space in which the hot water is stored are brought into contact with each other. The structure as disclosed in the prior art 1 has the problem that the heat due to the thermal stratification as described above is transferred to the polyurethane foam and the polyurethane foam is deformed due to the transferred heat to become uneven so that the insulation efficiency, there was. In addition, when the upper part of the polyurethane foam is deformed, the waterproof efficiency is also lowered, and moisture is introduced into the interior of the heat storage tank, failing to function properly.

Korean Laid-Open Patent Application No. 2014-0049731 ("Method of constructing a heat storage tank loop ", Apr. 28, 2014).

Accordingly, it is an object of the present invention to provide a super structure for a storage tank, which is capable of easily discharging the heat even if the heat of the hot water is transferred to the upper side of the storage tank, Which can prevent deformation of the heat storage tank.

In order to solve the above problems, an upper structure of a storage tank according to the present invention includes an inner wall layer 100 covering an upper part of a hot water storage tank 10, A heat insulating layer 300 forming a heat circulation space 200 between the heat insulating layer 300 and the foam layer 400 formed on the heat insulating layer 300 and a heat insulating layer 300 and a foam layer 400 And a heat circulation vent 500 having one end connected to the heat circulation space 200 and the other end positioned externally.

In addition, the lower surface of the insulating layer 300 is coupled to the mesh network.

The upper part of the thermal storage tank may further include a finish layer (600) to be in contact with the upper surface of the foam layer (400).

The finish layer 600 may include a polyurea layer 610 applied to the upper surface of the foam layer 400 and a coating layer 620 applied to the upper surface of the polyurea layer 610.

The upper structure of the storage tank may further include a support frame 700 supporting both the inner wall layer 100 and the foam layer 400 to support the foam layer 400.

Further, the thermo-cycling vents 500 are curved.

Also, the insulating layer 300 may be at least one material selected from the group consisting of mineral wool, glass wool, cerulean wool, pearlite, silicate, and foam glass board.

In addition, the thermal cycling vents 500 include fans 510a and 510b therein.

In addition, the thermal circulation space 200 includes a fan 510c.

According to the upper structure of the storage tank according to the preferred embodiment of the present invention, heat energy stored in the heat circulation space 200 is discharged to the outside through the heat circulation vent 500 to prevent deformation of the foam layer 400, Can be maintained.

In addition, according to the present invention, since the fan 510 installed in the heat circulation vent 500 facilitates the circulation of the heat circulation space 200 and the outside air, heat can be easily released.

1 is a sectional view of a conventional heat storage tank;
2 is a sectional view of a hot water storage tank including a superheated water tank top structure according to the present invention.
3 is a sectional view of the first embodiment of the superheated water tank top structure according to the present invention.
Fig. 4 is a sectional view showing the air circulation direction of Fig. 2; Fig.
5 is a sectional view of a second embodiment of the superheated water tank top structure according to the present invention.
6 is a conceptual diagram illustrating the operation of the fan using the variable electric wire of the upper part of the storage tank according to the present invention.
7 is a sectional view of a third embodiment of the superheated water tank top structure according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an upper structure of a storage tank according to the present invention will be described in detail with reference to the accompanying drawings. Since the super structure of the storage tank according to the present invention may have various embodiments according to the added structure, the first embodiment will be described first, and the other embodiments will be explained according to the added structure.

[First Embodiment]

FIG. 2 is a cross-sectional view of a hot water storage tank 10 including a superheated water tank top structure according to the present invention, and FIG. 3 is an enlarged view of the upper structure of FIG.

3, the first embodiment of the super heat storage tank structure according to the present invention includes an inner wall layer 100, a heat circulation space 200, a heat insulating layer 300, a foam layer 400, (500), a finish layer (600), and a support frame (700).

Like the prior art, the present invention relates to the upper structure of a hot water storage tank 10 in which hot water is stored. As shown in FIG. 3, the inner wall layer 100 covers the upper portion of the hot water storage tank 10. The inner wall layer 100 is formed of the same material as the outer wall of the hot water storage tank 10. That is, the inner wall layer 100 is a structure that forms the basic skeleton of the hot water storage tank 10, and is closest to the hot water stored in the hot water storage tank 10.

As shown in FIG. 3, the insulating layer 300 is spaced apart from the inner wall layer 100 by a predetermined distance. The insulating layer 300 is fixed through a mesh network (not shown) that is placed on the lower surface. The mesh network itself is fixed through the pieces 320. The mesh network is formed of a wire having high rigidity and functions to support the insulating layer 300 by interfacing with the insulating layer 300. The mesh network is fixed through the pieces 320. [ The direction in which the pieces 320 are coupled is the upper side from the lower side of the mesh net and the piece 320 is inserted into a foam layer 400 to be described later to fix the insulating layer 300. The side of the piece 320 to be inserted is sharp, and the opposite side of the inserted side is coupled with a wide plate. In other words, the piece 320 is inserted into the foam layer 400 by inserting the wide-shaped plate into the insulating layer 300 to push the insulating layer 300 upward, and the inserted side is fixed to the foam layer 400 to fix the insulating layer 300 I will. The mesh network can be omitted if necessary, such as when the insulating layer 300 is relatively light in weight or when the mesh network can receive a small amount of force.

The heat insulating layer (300) serves to block the heat coming from the hot water storage tank (10). That is, the heat that has risen due to the thermal stratification has to stay in the insulating layer 300 partially. Therefore, the insulating layer 300 may be formed of one or more materials selected from the group consisting of mineral wool, glass wool, cerulean wool, pearlite, silicate, and foam glass board. The material is a wool material mainly composed of fibers, and is a material capable of effectively shielding emitted heat. Even if the insulating layer 300 has a heat insulating effect, accumulated heat can escape to the periphery. 3, in order to reduce the amount of heat generated due to the thermal stratification to the heat insulating layer 300 and to provide a separate passage for discharging the heat, (100). &Lt; / RTI >

3, the heat circulation space 200 is a space formed between the inner wall layer 100 and the heat insulating layer 300. As shown in FIG. That is, the heat circulation space 200 is a space in which only air exists, and primarily stores heat generated by the thermal stratification, and serves as a passage for ventilation to the outside. The insulating layer 300 is formed of a wool material so that it can be ventilated to the inside. However, from the viewpoint of circulation of air, the ventilation efficiency of a space in which only air exists is good without resistance due to wool material, The heat circulation space 200 is formed to smooth the ventilation.

As shown in FIG. 3, the foam layer 400 is installed in the upper part of the insulating layer 300 by inspecting the insulating layer 300. The foam layer 400 may be formed of various foam materials, but is generally formed of polyurethane. The foam layer 400 plays a role of a secondary insulation layer provided on the upper part of the insulating layer 300 and also serves to catch the overall appearance of the thermal water tank. Since the foam layer 400 is excellent in elasticity and stretchability due to the characteristics of a polyurethane material, it is resistant to external impacts.

Since the heat circulation space 200, the heat retaining layer 300 and the foam layer 400 which are located above the inner wall layer 100 described above are spaced apart by a certain distance from the heat circulation space 200, There is no choice but to stay. A separate structure is provided for supporting the heat retaining layer 300 and the foam layer 400 from the inner wall layer 100 while forming the thermally recirculating space 200. This configuration is the same as the structure shown in Fig. Frame 700 shown in Fig.

3, both ends of the support frame 700 abut the inner wall layer 100 and the foam layer 400 to support the foam layer 400. As shown in FIG. A plurality of the support frames 700 may be spaced apart from each other by a predetermined distance according to design conditions. The support frame 700 is formed of a material resistant to high temperature and durability and has a characteristic of being resistant to thermal expansion and heat shrinkage. The support frame 700 may be formed of the same material as the foam layer 400. Accordingly, the support frame 700 may be formed of a polyurethane material.

In order to discharge the heat stored in the heat circulation space 200, a passage connecting the exterior and the heat circulation space 200 is required. In this case, the heat circulation vent 500 functions. 3, the thermo-cycling vents 500 are installed such that the thermo-cycling vents 500 pass through the thermostatting layer 300 and the foam layer 400. One end of the thermo-cycling vents 500 is connected to the thermocycling space 200, And the other end is located outside.

As shown in FIG. 3, the end of the thermo-cycling vent 500, which is located at the other end of the thermo-cycling vent 500, is bent toward the ground. This is to prevent the rain during rain from penetrating into the heat circulation space 200 through the thermocycling vent 500. This is because if water is introduced into the heat circulation space 200 and the humidity of the heat circulation space 200 is increased, the durability and effectiveness of the heat insulation layer 300, which is adjacent to the heat circulation space 200, Because.

As shown in FIG. 3, the finish layer 600 includes a polyurea layer 610 and a coating layer 620, which are in contact with the upper surface of the foam layer 400. The finish layer 600 is also designed to be waterproof.

The polyurea layer 610 is formed by applying a polyurea. Polyurea is a water-repellent coating with a high drying speed and excellent coating quality. Also, it has excellent properties such as tensile, tear, impact resistance, abrasion resistance and durability, and is excellent in properties such as adhesive strength, anticorrosion, chemical resistance, acid resistance and cold resistance and is widely used for waterproofing. The polyurea layer 610 is formed by spraying, applying and curing a mixture of a polyurea subject and a curing agent at a high temperature and a high pressure.

3, the coating layer 620 is applied to the upper surface of the polyurea layer 610, and is applied for finishing the polyurea layer 610. As shown in FIG. The coating layer 620 is mainly a paint for polyurea coated with the polyurea layer 610.

4 schematically shows the air circulation of the first embodiment of the present invention described above. As shown in FIG. 4, the heat accumulated in the heat circulation space 200 is circulated through the heat circulation vent 500, and then exits to the outside. Therefore, heat accumulated in the heat circulation space 200 is not transferred to the foam layer 400 through the insulating layer 300, so that only less heat is transferred to the foam layer 400 than in the prior art. Heat may be transferred to the foam layer 400 when it is discharged through the thermocycling vent 500 because the heat is transferred to the foam layer 400 in such a small amount that the foam layer 400 does not cause deformation, 400 can be prevented from being deformed.

[Second Embodiment]

Hereinafter, a second embodiment of the super structure of the storage tank according to the present invention will be described. The second embodiment of the superheated water tank top structure according to the present invention is added with the additional structure in the first embodiment, and only the additional structure will be described. The configuration added in the second embodiment is the fans 510a and 510b formed inside the thermocycling vent 500.

As shown in FIG. 5, the fans 510a and 510b may be formed in the heat circulation vent 500 to promote air circulation in the heat circulation space 200. For this, the fan installed in a part of the plurality of the thermo-cycling vents 500 can rotate in a direction to introduce air from the outside, and the other fan rotates in a direction to discharge the air in the heat- . The direction of rotation of the fans 510a and 510b can be selectively selected by the user, as shown in FIG.

5, the left side of the two heat cycling vents 500 rotates the fan 510a to suck the outside air, and the right side rotates the fan 510b to discharge the air in the heat circulation space 200 ). The arrows in FIG. 5 illustrate the direction of the air circulation. When the fans 510a and 510b are used, the air circulation in the heat circulation space 200 and the outside can be promoted. Therefore, The heat of the space 200 can be discharged to the outside.

In the case of the fans 510a and 510b, since it is not necessary to operate the fan 510a and 510b for 24 hours, a separate sensor may be provided in the thermal circulation space 200 to operate only over a predetermined operating condition. However, since the operating condition is the temperature of the heat circulation space 200, the thermal expansion of the metal using the temperature can be utilized.

The above-described configuration will be described in detail, for example, as follows.

The object has the property that the volume changes with the change of the temperature. This is called thermal expansion, and each object has a constant that varies in volume by temperature, which is called the thermal expansion coefficient. Since the metal generally has a higher thermal expansion coefficient than other materials, the present invention uses a metal that is a conductor and has a high thermal expansion coefficient, and this conductor is referred to as a variable wire 800.

An operation diagram of the fan 510 using the variable electric wire 800 is shown in Fig. As shown in FIG. 6, the power source 20 for operating the fan 510 and the fan 510 is connected through the variable power line 800. 6, when the temperature of the variable electric wire 800 becomes equal to or higher than the reference temperature, the fan 510 thermally expands and electrically connects the fan 510 to the power source 20. When the temperature of the variable electric wire 800 is lower than the reference temperature, 510 and the power source 20 are disconnected from each other. The colored portion of the variable electric wire 800 shown in FIG. 6 is in a state in which the length is not thermally expanded when the reference temperature is lower than the reference temperature.

When the position of the variable electric wire 800 is positioned in the heat circulation space 200, the length of the variable electric wire 800 varies according to the temperature of the heat circulation space 200, Therefore, there is an effect that the fan 510 can be easily operated without having to construct a separate temperature sensor and a corresponding system.

[Third Embodiment]

Hereinafter, a third embodiment of the super structure of the storage tank of the present invention will be described in detail with reference to the accompanying drawings.

7 shows a third embodiment of the superheated water tank top structure according to the present invention. As shown in FIG. 7, the other structure is the same as that of the first embodiment, and the inside of the heat- And a fan 510c is added. The third embodiment differs from the second embodiment in that it circulates the inside of the heat circulation space 200 without introducing outside air outside the water tank, thereby promoting air circulation to the heat circulation vent 500 do. 7, the fan 510c rotates in one direction, and an arrow indicating the direction of the air is displayed in one direction. However, in reality, a plurality of the fans 510c are installed in the heat circulation space 200, Thereby causing the internal air to circulate.

The fans 510a, 510b, and 510c shown in the second and third embodiments may be installed together to further promote the circulation of air.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the present invention as defined by the appended claims.

10: Hot water storage tank
20: Power supply
100: inner wall layer
200: heat circulation space
300: insulating layer
320: piece
400: Foam layer
500: Heat circulation vent 510: Fan
600: finish layer
610: polyurea layer 620: coating layer
700: Support frame
800: Variable wires

Claims

An inner wall layer (100) covering an upper portion of the hot water storage tank (10);
A heat insulating layer 300 spaced apart from the upper portion of the inner wall layer 100 to form a heat circulation space 200 with the inner wall layer 100;
A foam layer 400 formed on the insulating layer 300; And
A plurality of heat circulation vents 500 installed through the heat insulating layer 300 and the foam layer 400 and having one end located in the heat circulation space 200 and the other end positioned outside;
, &Lt; / RTI &
At least one of the plurality of thermocycling vents (500) includes a fan (510a) for introducing air into the thermocycling space (200)
At least one of the plurality of the thermo-cycling vents (500) includes a fan (510b) for discharging air from the thermo-recirculation space (200) to the outside to form an air circulation flow path,
The heat circulation space 200 includes a fan 510c to promote air circulation,
Wherein the power source (20) for operating the fan and the fan is electrically connected or not connected through a variable electric wire (800) that expands or contracts according to temperature.

The method of claim 1, wherein the insulating layer (300)
And the bottom surface is coupled to the mesh net.

The heat storage tank according to claim 1,
Further comprising a finish layer (600) to be in contact with an upper surface of the foam layer (400).

The method of claim 3, wherein the finish layer (600)
A polyurea layer 610 applied to the upper surface of the foam layer 400,
A coating layer 620 applied to the upper surface of the polyurea layer 610,
Wherein the upper portion of the upper portion of the heat storage tank has an upper surface and a lower surface.

The heat storage tank according to claim 1,
Further comprising a support frame (700) having opposite ends abutting the inner wall layer (100) and the foam layer (400) to support the foam layer (400).

The method of claim 1, wherein the thermocycling vent (500)
And the upper part of the heat storage tank is bent.

The method of claim 1, wherein the insulating layer (300)
And at least one material selected from the group consisting of mineral wool, glass wool, cerulean wool, pearlite, silicate or foam glass board.

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