JP2007131329A - Thermal insulation material for storage tank - Google Patents

Thermal insulation material for storage tank Download PDF

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Publication number
JP2007131329A
JP2007131329A JP2005326375A JP2005326375A JP2007131329A JP 2007131329 A JP2007131329 A JP 2007131329A JP 2005326375 A JP2005326375 A JP 2005326375A JP 2005326375 A JP2005326375 A JP 2005326375A JP 2007131329 A JP2007131329 A JP 2007131329A
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Japan
Prior art keywords
heat insulating
storage tank
vacuum
heat
hot water
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2005326375A
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Japanese (ja)
Inventor
Osamu Hasegawa
Hirofumi Ida
Daisuke Kuboi
Akira Sakai
Masanori Ueda
Kenji Watanabe
真典 上田
大輔 久保井
浩文 井田
昭 坂井
健次 渡辺
治 長谷川
Original Assignee
Corona Corp
Tokyo Electric Power Co Inc:The
東京電力株式会社
株式会社コロナ
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Application filed by Corona Corp, Tokyo Electric Power Co Inc:The, 東京電力株式会社, 株式会社コロナ filed Critical Corona Corp
Priority to JP2005326375A priority Critical patent/JP2007131329A/en
Publication of JP2007131329A publication Critical patent/JP2007131329A/en
Pending legal-status Critical Current

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Abstract

Disclosed is a storage tank heat insulating material that is easily damaged and is not easily damaged.
A heat insulating material 13 that covers an outer periphery of a storage tank 4 for storing a liquid, and the heat insulating material 13 is formed by integrally forming a vacuum heat insulating material 15 and a foam heat insulating material 14, and therefore the vacuum heat insulating material 15 and the foamed heat insulating material 14 are foamed. The heat insulating material 14 is integrally molded, so that it is easy to handle, easy to assemble, increases work efficiency, is less likely to be scratched, has no fear of vacuum breakage due to perforations, and has the effect of a double heat insulating material. A good heat insulating effect can be obtained over a long period of time.
[Selection] Figure 3

Description

  The present invention relates to a heat insulating material for a storage tank for storing hot water such as an electric water heater or a heat pump type hot water heater.
Conventionally, in this type, there is a vacuum heat insulator as a heat insulator having excellent heat insulation. This is a product in which the thermal conductivity is further reduced by evacuating or depressurizing the inside of the container, and has extremely high heat insulating properties. As the structure and material of this vacuum insulator, inorganic fine particulate insulating powder such as pearlite and silica, urethane foam, honeycomb, etc. are placed in a container with high gas barrier properties such as metal / plastic laminate film and plastic multilayer film. Some were vacuum-sealed with the adsorbent as a core material. (For example, refer to Patent Document 1.)
JP-A-2-77293
  By the way, in this conventional thing, the film part which comprises a vacuum part tends to be damaged, and a heat-insulating effect falls to 1/10 because a vacant hole is destroyed and a vacuum state is destroyed. Due to the ease of handling, it was difficult to handle and had a large problem in assembly.
  The present invention pays attention to this point and solves the above-mentioned drawbacks. In particular, in the heat insulating material covering the outer periphery of the storage tank for storing the liquid, the heat insulating material is formed by integrating the vacuum heat insulating material and the foam heat insulating material. Molded.
  According to this invention, since the vacuum heat insulating material and the foam heat insulating material are integrally formed, it is easy to handle, easy to assemble, increases work efficiency, is less likely to be scratched, and there is a risk of vacuum breakage due to perforations. In addition, a good heat insulating effect can be obtained over a long period of time due to the effect of the double heat insulating material.
Next, an embodiment of the present invention will be described with reference to the drawings.
1 is a tank unit for storing hot water, and 2 is a heat pump heater, which stores the heated hot water in the tank unit 1 and supplies hot water from the hot water tap 3 when hot water is requested.
  Next, the tank unit 1 will be described with reference to the exploded perspective view of FIG. 2. 4 is a first storage tank, 5 is a second storage tank, 6 is a first support leg for supporting the first storage tank 4, and 7 is A second support leg for supporting the second storage tank 5, 8 a water supply pipe connected to the lower part of the second storage tank 5, 9 a tank connection pipe connecting the upper part of the first storage tank 4 and the lower part of the second storage tank 5, 10 is a hot water supply pipe connecting the upper part of the first storage tank 4 and the hot-water tap 3, 11 is a heater outgoing pipe connecting the lower part of the second storage tank 5 and the inflow side of the heater 2, and 12 is an upper part of the first storage tank 4. It is a heater return pipe connecting the outflow side of the heater 2, and the water supplied from the water supply pipe 8 and stored in the first storage tank 4 and the second storage tank 5 is driven by a circulation pump (not shown). It flows into the heater 2 through the heater outgoing pipe 11 at the lower part of the second storage tank 5. After being heated to a high temperature, it flows through the heater return pipe 12, gradually stores hot water from the upper part of the first storage tank 4, and if the hot water tap 3 is opened, hot water is stored in the upper part of the first storage tank 4 by the supply water pressure. However, the hot water is supplied from the hot water tap 3 through the hot water supply pipe 10 at the top of the first storage tank 4.
  Reference numeral 13 denotes a heat insulating material that covers and covers the entire outer surfaces of the first storage tank 4 and the second storage tank 5 for heat insulation and heat insulation, and is an integrally molded product of a foam heat insulating material 14 made of heat-resistant foamed polystyrene and a vacuum heat insulating material 15. It is configured, and the vacuum heat insulating material 15 is inserted in the mold in advance, and the foamed resin is poured therein, so that the molded heat insulating material in which the vacuum heat insulating material 15 is located at the approximate center of the foam heat insulating material 14 is accommodated in the storage tanks 4, 5. In accordance with the above, it is molded into multiple pieces.
  The vacuum heat insulating material 15 is composed of a core material and a jacket material made of a gas barrier laminate film that covers the core material, and the internal pressure is reduced to 1 Pa to 200 Pa and hermetically sealed. Can be produced by a known method.
  The plurality of molded heat insulating materials are divided into a bottom heat insulating material 131, a front lower heat insulating material 132, a front upper left heat insulating material 133, a front upper right heat insulating material 134, a rear heat insulating material 135, and a top heat insulating material 136. Each of the portions in contact with the first storage tank 4 and the second storage tank 5 has a tank recess 16 having a shape along the outline of the first storage tank 4 and the second storage tank 5. The recess 16 is brought into close contact with the outer shells of the first storage tank 4 and the second storage tank 5, and the adjacent heat insulating materials 13 are attached in close contact with each other.
  As described above, the storage tanks 4 and 5 are covered with the plurality of heat insulating materials 13 and the vacuum heat insulating material 15 is embedded therein, so that the heat insulating and heat insulating effect is dramatically improved even if the heat insulating material 13 itself is thin. At the time of manufacturing and assembling, it is only necessary to attach the plurality of heat insulating materials 13 so as to be fitted at appropriate positions, so that efficient work can be performed, man-hours for manufacturing and assembly are not required, and costs can be reduced. In addition, the desorption work at the time of maintenance becomes very easy and the workability is improved, and further, the vacuum heat insulating material 15 in which the heat insulation and heat insulating effect is drastically reduced by breaking the vacuum is contained in the foam heat insulating material 14. Because it is molded integrally with the, it is easy to handle without worrying about destruction and can be used with peace of mind.
  In addition, since the positioning concave and convex portions 17 for positioning are provided on the surfaces of the plurality of heat insulating materials 13 that are in contact with each other, the positioning of the plurality of heat insulating materials 13 becomes accurate, and the heat insulating materials 13 are in close contact with each other. It is possible to prevent heat dissipation due to air flowing through the gaps between the plurality of heat insulating materials 13, and in particular, the upper surfaces of the front upper left heat insulating material 133, the front upper right heat insulating material 134, and the rear heat insulating material 135. The bottom surface of the top heat insulating material 136 is securely adhered by the fitting uneven portion 17 so that the vertical dividing surface (the front upper left heat insulating material 133, the front upper right heat insulating material 134, and the rear heat insulating material 135 Generation of gaps between the surfaces that are in contact with each other) and horizontal dividing surfaces (surfaces that are in contact with the upper surfaces of the front upper left heat insulating material 133, the front upper right heat insulating material 134, the rear heat insulating material 135, and the bottom surface of the top heat insulating material 136) To prevent this gap and Convection is generated by the temperature difference from the click for recess 16 air can be reliably prevented from being radiated by flowing, temperature-maintaining heat insulating performance is greatly improved.
  In addition, on the surfaces of the plurality of heat insulating materials 13 that are in contact with each other, a piping groove portion 18 is provided for housing a plurality of piping such as a water supply pipe 8 and a hot water supply pipe 10 connected to the first storage tank 4 and the second storage tank 5. These pipes are insulated and insulated. Specifically, the bottom heat insulating material 131 is connected to the lower part of the second storage tank 5 on the upper surface in contact with the front lower heat insulating material 132 or the rear heat insulating material 135. There are provided a plurality of piping groove portions 18 in which the water supply pipe 8, the heater outgoing pipe 11, and the tank connection pipe 9 connected to the lower part of the first storage tank 4 are accommodated. The tank contact pipe 9 that connects the first storage tank 4 and the second storage tank 5 to the surface in contact with the left heat insulating material 133 or the front upper right heat insulating material 134 and the heater return connected to the upper part of the first storage tank 4 The tube 12 can be A pipe groove 18 is provided, and the top heat insulator 136 has a tank communication pipe 9 for communicating the first storage tank 4 and the second storage tank 5 and a hot water supply pipe connected to the upper part of the first storage tank 4. A plurality of piping grooves 18 in which 10 is accommodated are provided.
  As a result, not only the insulation and heat insulation of the storage tanks 4 and 5 but also the respective storage tanks 4 and 5 can be installed by fitting a plurality of heat insulating materials 13 for keeping and insulating the storage tanks 4 and 5 at appropriate positions. The plurality of pipes 8, 9, 10, 11, and 12 connected to 5 are also stored in the pipe groove portions 16 provided on the surfaces of the plurality of heat insulating materials 13 that are in contact with each other to perform heat insulation and heat insulation. This eliminates the need for piping-specific heat insulation, facilitates desorption work, improves workability, reduces man-hours during manufacturing and assembly, and greatly improves workability during maintenance, greatly increasing the cost of heat insulation and heat insulation for piping. Can be lowered.
  Reference numeral 19 denotes an exterior body of the storage tank 1 including a bottom plate 191, a front plate 192, a rear plate 193, and a top plate 194.
  At least a part of the outer surface of the plurality of heat insulating materials 13 is in contact with the inner surface of the exterior body 19, and the plurality of heat insulating materials 13 are pressed inward and firmly in contact with each other by firmly assembling the exterior body 19. Is more closely attached and heat insulation / insulation performance is improved, and a part of the load of the storage tanks 4 and 5 applied to the tank support legs 6 and 7 is supported, and the storage tanks 4 and 5 are tilted and overturned inside the exterior body 19. Prevent it.
  Here, if the plurality of heat insulating materials 13 are divided into at least a bottom heat insulating material, a top heat insulating material, a front heat insulating material, and a rear heat insulating material, heat insulation and heat insulation with good desorption workability and low cost are possible. The performance can be improved, and the maintainability can be further improved by further dividing the front heat insulating material that is often removed during maintenance into upper and lower parts.
  FIG. 4 shows another embodiment of the plurality of molded heat insulating materials 13, in which a part of the outer periphery of the heat insulating material 13 is removed from the tank recess 16 in contact with the storage tank 4 or 5 while leaving a certain thickness. In addition, a part of the outer periphery that is not thinned is brought into contact with the inner surface of the exterior body 19. In this way, by firmly assembling the exterior body 19, the plurality of heat insulating materials 13 are pressed inward so that the surfaces that come into contact with each other are more closely adhered to each other, thereby improving heat insulation and heat insulation performance. 4 and 5 are prevented from tilting and falling, and the material cost of heat-resistant foamed polystyrene is reduced, thereby further reducing the cost.
  FIG. 5 shows that the vacuum heat insulating material 15 is put inside the mold, and the resin of the foam heat insulating material 14 is poured into the remaining portion so that the vacuum heat insulating material 15 is located inside the heat insulating material 13. The vacuum heat insulating material 15 is not inadvertently touched by the operator's hand, and the large heat insulating effect of the vacuum heat insulating material 15 is on the storage tanks 4 and 5 side, thereby reducing the heat radiation amount and further improving the heat insulating effect. In addition, it is possible to reduce the cost by making the foam heat insulating material 14 thinner.
  In FIG. 6, the vacuum heat insulating material 15 is brought to the outside of the mold, and the resin of the foam heat insulating material 14 is poured into the remaining portion so that the vacuum heat insulating material 15 is located outside the heat insulating material 13. For example, heat dissipation through the foam heat insulating material 14 can be prevented, and intrusion of cold air from the outside is shut out, further improving the heat retaining and heat insulating effect.
  The present invention is not limited to this embodiment, and can be applied to other embodiments without changing the gist thereof. For example, an electric heater provided inside a storage tank instead of a heat pump type hot water heater. It may be used to make hot water, and there may be only one storage tank. Further, even if the outer casing is cylindrical, the outer periphery of the molded heat insulating material may be shaped along the cylindrical outer casing.
BRIEF DESCRIPTION OF THE DRAWINGS The schematic block diagram of the hot water storage type water heater of one Embodiment of this invention. The disassembled perspective view of the storage tank of the same embodiment. Sectional drawing of the principal part of the hot water storage tank of the same embodiment. The perspective view of the heat insulating material of other one Embodiment. The perspective view of the heat insulating material which made the vacuum heat insulating material the inner side. The perspective view of the heat insulating material which made the vacuum heat insulating material the outside.
Explanation of symbols
1 Tank unit 4 First storage tank (storage tank)
5 Second storage tank (storage tank)
8 Water supply pipe (pipe)
9 Can connection pipe (pipe)
10 Hot water supply pipe (pipe)
11 Heater outgoing pipe (pipe)
12 Heater return pipe (pipe)
13 Thermal insulation material 14 Foam thermal insulation material 15 Vacuum thermal insulation material

Claims (4)

  1.   A heat insulating material for covering an outer periphery of a storage tank for storing a liquid, wherein the heat insulating material is formed by integrally forming a vacuum heat insulating material and a foam heat insulating material.
  2.   2. The heat insulating material for a storage tank according to claim 1, wherein the heat insulating material is integrally formed so that the inside is a vacuum heat insulating material and the foam heat insulating material is located on the outside.
  3.   2. The heat insulating material for a storage tank according to claim 1, wherein the heat insulating material is integrally molded so that the inside is a foam heat insulating material and the vacuum heat insulating material is positioned on the outside.
  4.   The heat insulating material for a storage tank according to claim 1, wherein the heat insulating material is integrally formed in a shape in which a vacuum heat insulating material is sandwiched between foam heat insulating materials.
JP2005326375A 2005-11-10 2005-11-10 Thermal insulation material for storage tank Pending JP2007131329A (en)

Priority Applications (1)

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JP2005326375A JP2007131329A (en) 2005-11-10 2005-11-10 Thermal insulation material for storage tank

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Application Number Priority Date Filing Date Title
JP2005326375A JP2007131329A (en) 2005-11-10 2005-11-10 Thermal insulation material for storage tank

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JP2007131329A true JP2007131329A (en) 2007-05-31

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008309390A (en) * 2007-06-14 2008-12-25 Panasonic Corp Heat insulating constitution of hot water storage tank
JP2009092306A (en) * 2007-10-09 2009-04-30 Panasonic Corp Hot water storage type water heater
JP2009115352A (en) * 2007-11-05 2009-05-28 Panasonic Corp Hot water storage type water heater
JP2009243866A (en) * 2008-04-01 2009-10-22 Mitsubishi Electric Corp Heat pump hot-water supply device
JP2010139236A (en) * 2010-02-17 2010-06-24 Panasonic Corp Storage type water heater
JP2011149579A (en) * 2010-01-19 2011-08-04 Daikin Industries Ltd Hot water storage tank
JP2011237072A (en) * 2010-05-07 2011-11-24 Mitsubishi Electric Corp Hot water storage tank unit
JP2012202660A (en) * 2011-03-28 2012-10-22 Mitsubishi Electric Corp Storage water heater
JP2013160494A (en) * 2012-02-09 2013-08-19 Mitsubishi Electric Corp Storage type water heater
JP2013194985A (en) * 2012-03-19 2013-09-30 Mitsubishi Electric Corp Storage type water heater
JP2013217505A (en) * 2012-04-04 2013-10-24 Mitsubishi Electric Corp Heat insulating structure of hot water storage type water heater and method for manufacturing the same
JP2014202467A (en) * 2013-04-10 2014-10-27 三菱電機株式会社 Storage water heater

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61125577A (en) * 1984-11-20 1986-06-13 Matsushita Refrigeration Heat insulator
JPH0339139Y2 (en) * 1986-04-15 1991-08-19
JP2005147591A (en) * 2003-11-18 2005-06-09 Toshiba Consumer Marketing Corp Refrigerator
JP2005188714A (en) * 2003-12-26 2005-07-14 Hino Motors Ltd Heat insulating panel
JP2005226965A (en) * 2004-02-16 2005-08-25 Matsushita Electric Ind Co Ltd Hot water storage tank

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61125577A (en) * 1984-11-20 1986-06-13 Matsushita Refrigeration Heat insulator
JPH0339139Y2 (en) * 1986-04-15 1991-08-19
JP2005147591A (en) * 2003-11-18 2005-06-09 Toshiba Consumer Marketing Corp Refrigerator
JP2005188714A (en) * 2003-12-26 2005-07-14 Hino Motors Ltd Heat insulating panel
JP2005226965A (en) * 2004-02-16 2005-08-25 Matsushita Electric Ind Co Ltd Hot water storage tank

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008309390A (en) * 2007-06-14 2008-12-25 Panasonic Corp Heat insulating constitution of hot water storage tank
JP2009092306A (en) * 2007-10-09 2009-04-30 Panasonic Corp Hot water storage type water heater
JP2009115352A (en) * 2007-11-05 2009-05-28 Panasonic Corp Hot water storage type water heater
JP2009243866A (en) * 2008-04-01 2009-10-22 Mitsubishi Electric Corp Heat pump hot-water supply device
JP2011149579A (en) * 2010-01-19 2011-08-04 Daikin Industries Ltd Hot water storage tank
JP4591623B2 (en) * 2010-02-17 2010-12-01 パナソニック株式会社 Hot water storage water heater
JP2010139236A (en) * 2010-02-17 2010-06-24 Panasonic Corp Storage type water heater
JP2011237072A (en) * 2010-05-07 2011-11-24 Mitsubishi Electric Corp Hot water storage tank unit
JP2012202660A (en) * 2011-03-28 2012-10-22 Mitsubishi Electric Corp Storage water heater
JP2013160494A (en) * 2012-02-09 2013-08-19 Mitsubishi Electric Corp Storage type water heater
JP2013194985A (en) * 2012-03-19 2013-09-30 Mitsubishi Electric Corp Storage type water heater
JP2013217505A (en) * 2012-04-04 2013-10-24 Mitsubishi Electric Corp Heat insulating structure of hot water storage type water heater and method for manufacturing the same
JP2014202467A (en) * 2013-04-10 2014-10-27 三菱電機株式会社 Storage water heater

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