JP2009222303A - Electric heater unit box to connect with radiator for indoor heating - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily transport and construct a circulation system section connected with a radiator by putting it in a heater unit box in compact in a hot water circulation heating system, and to improve a degree of freedom in design and layout of the hot water circulation heating system. <P>SOLUTION: An air separation pressure tank 2, a circulation pump 3, and a pipe heater 4 are connected by pipes through ball valves 6A, 6B, 6C and tees 7, 7A to have a hot water circulating function in a rectangular cylindrical heater unit box 1 openable and closable by covers 1U, 1D at both ends, and the heater unit box 1 can be vertically or horizontally installed in adjacent to the hot water circulation radiator HR. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electric heater unit box housed in a unit box for use in connection with a radiator for indoor heating, and belongs to the technical field of indoor heating in a house.

Conventionally, various types of indoor hot water heating systems have been proposed and put into practical use. Typically, there are a conventional example 1 shown in FIG. 6 and a conventional example 2 shown in FIG.
Conventional example 1 shown in FIG. 6 is a typical indoor hot water heating system listed in Non-Patent Document 1, in which FIG. 6 (A) is a schematic explanatory diagram of the heating system, and FIG. FIG. 6C is a side view of the heat dissipating part.

  That is, in Conventional Example 1 (FIG. 6), a hot water boiler equipped with a pressure gauge, a safety relief valve, and a drain valve is heated with electricity, gas, etc., and the hot water heated with the hot water boiler is passed through the piping and the outgoing header. Water is sent to the radiators located in the radiators in each room to heat the room, and hot water is returned from each radiator to the boiler via the piping and return side header to reheat. One hot water circulation function The part contains a circulation pump, a closed expansion tank, an air vent valve, a header, etc., and each radiator also has an air vent valve, a thermo stud valve, and a hot water inlet / outlet valve. One hot water circulation system located in the center Thus, it is connected to a large number of radiators.

Further, Conventional Example 2 (FIG. 7) is the one cited in Patent Document 1, and as shown in FIG. 7, a large number of radiating fins are arranged on the outer peripheral surface of the heating copper tube, In the heating chamber, a sheathed heater is disposed over almost the entire length of the copper pipe for heating, and the heating chamber is filled with an aqueous solution. Further, the copper pipe for the expansion chamber is extended from the heating chamber through the bent pipe portion. Inert chamber is injected into the expansion chamber, and the entire heater is reduced in size by integrating the heating part and the heat dissipation part, and the heat dissipation fins are heated in a short time to increase the initial rise of heat dissipation. This is a fast heater.
Morinaga Engineering Co., Ltd. Brochure (No. 0402-5C-dB) “Morinaga Hot Water Panel Heating Technical Data”, “Design, Construction, Operational Precautions” section and “Thermo Panel Handling Method” Term Japanese Utility Model Publication No. 6-18813

  The hot water circulation heating system of Conventional Example 1 (FIG. 6) includes a hot water boiler equipped with a safety relief valve, a pressure gauge, a drainage gate valve, and a water supply gate valve, a sealed expansion tank equipped with a safety relief valve, And a single hot water circulation heating system consisting of a return header, a hot water circulation pump, and an air separator equipped with an air vent valve installed between the boiler and the circulation pump. It is connected and operated by a pipe, and since it is connected to each radiator by piping in a corridor, a wall, and a ceiling from one boiler room, there are the following problems.

(I). Piping that connects one hot water circulation heating system section and each distributed heatsink group in a centralized management system system will be installed in the wall, under the floor, and inside the ceiling when building a new building, and each heat release from the hot water circulation system Restoration and repair of the damaged hot water path to the vessel is a work under the floor, in the wall, and in the ceiling, so it takes time and money.
(B). When a circulation pump or the like in the hot water circulation system breaks down, heating of the entire heating system is stopped.
(C). Since the connection pipe from one circulation system to each room radiates heat in the hot water path, heat loss in the pipe path is large.

In the electric heater of Conventional Example 2 (FIG. 7), since the hot water does not circulate only by heating the aqueous solution in the sheathed heater, partial spots occur in the heating temperature, and the heat dissipation amount is small.
And since the heat radiation of heating is natural convection, temperature spots are generated due to the part of the heat radiation, and uniform heating from the entire surface of the heat radiation part cannot be obtained.
In addition, since the heat dissipating part and the heating part are integrated, the thermostat is frequently turned on and off, and the heat generation effect on the power consumption is poor.
The present invention solves or improves all the problems of the prior art at once, and the electric hot water circulation system is compacted as a heater unit box independent of the radiator, and can be transported and arranged freely. In addition, it is possible to easily cope with both new construction and renovation.

An electric heater unit box according to the present invention includes an air separation pressure tank 2, a circulation pump 3, a pipe heater 4 in a square cylindrical heater unit box 1 that can be opened and closed by lids 1D and 1U at both ends as shown in FIG. Are connected by pipes via ball valves 6A, 6B, 6C and cheeses 7 and 7A to store the hot water circulation function and connect to a hot water circulation radiator for indoor heating.
In this case, the connection port of the forward pipe (supply pipe) and the return pipe (return pipe) to the radiator may be protruded from an appropriate position of the heater unit box 1.

Further, the circulation pump 3, pipe heater 4, ball valves 6A, 6B, 6C and cheese 7, 7A constituting the electric heater unit box are prepared as conventional products, and the air separation pressure tank 2 is the same as in the conventional example 1. A new tank that functions as an expansion tank and an air separator is employed, and pipes for piping may be made of conventional ethylene-propylene rubber having excellent durability, heat resistance, and solvent resistance.
Moreover, the pipe heater 4 should just employ two or more SC heaters (brand name) for 1kw heat_generation | fever made from Thermal Engineering Co., Ltd. excellent in energy saving property according to heating capability.

  Therefore, the electric heater unit box of the present invention is a small-sized (standard: width 180 mm × depth 160 mm × length 590 mm) heater unit box 1 for a general-purpose type of 1 kw to 3 kw, and therefore separate hot water circulation A horizontal or vertical type as shown in Fig. 1 can be placed on the radiator, and the piping connection from the heater unit box 1 to the radiator can be a close connection in the same room, etc., and heat radiation from the connecting piping is also helpful for indoor heating. Thus, a hot water circulation heating system with substantially zero (0) heat loss can be provided.

Moreover, since the hot water circulation function part is a compact rectangular tube box, there is a high degree of freedom in indoor placement, and the electric heater unit box is equipped with a power terminal regardless of whether it is a new building or a renovation. Any position can be used.
Therefore, for example, even in a building that adopts the hot water circulation system of Conventional Example 1 (FIG. 6), the electric heater unit box of the present invention is not allowed to leave the old piping under the floor, in the wall, and in the ceiling when renovating. If it is left as it is, it is 1: 1 for each radiator, or if it is arranged in a 1: 2 correspondence between two adjacent radiators, the heat radiation part and the hot water heating circulation part are separate, workability, In addition, an indoor hot water heating system with excellent maintainability can be provided.

  Further, according to the present invention, the heater unit box 1 has, for example, as shown in FIGS. 2 and 3, a long L-shaped cross section having a long left side plate 1 </ b> L and a right side plate 1 </ b> R joined in a separable manner. The left tube 1L having an L-shaped cross section includes a rectangular tube portion 1K and upper and lower lids 1U and 1D that are detachably fitted to both ends of the rectangular tube portion 1K. A plurality of wire insertion holes H1 are provided at intervals, and the other side LS2 is preferably provided with air circulation holes H3 at positions corresponding to the respective wire insertion holes H1.

In this case, the left side plate 1L attaches a support material such as a device to the inner surface, and the right side plate 1R plays the role of a lid of the rectangular tube portion 1K.
The wire insertion hole H1 appropriately positions the connection between an electric piping box (not shown) embedded in the wall surface WL or the floor surface FL in advance and a temperature adjustment unit (not shown) housed in the heater unit box. It is a size that can be put into a human hand, and is typically an oval hole having a width of 60 mm and a height of 40 mm, and is arranged at five locations at intervals of 100 mm.
The air circulation hole H3 dissipates the heat in the heater unit box 1 to the outside, and forms an air through channel in the heater unit box 1, and typically has a width of 20 mm and a height. It is a 40 mm oval hole.
When the heater unit box 1 is used upright, the operation panel 9B is disposed on the upper lid 1U. When the heater unit box 1 is used as a horizontal type, the operation panel 9B is provided on the right side plate 1R that performs the lid function of the rectangular tube portion 1K. Should be arranged.

Accordingly, by removing the upper lid 1U and the lower lid 1D, the rectangular tube portion 1K can be disassembled into a left side plate 1L and a right side plate 1R having an L-shaped cross section, and the storage device can be fixed only to the left side plate (1L). Maintenance in the heater unit box 1 can be easily performed by removing the right side plate 1R as the lid member of the portion 1K.
In addition, the arrangement of the heater unit box 1 in each room is also arranged in multiple stages with the wire insertion holes H1 in series, so that the connection position with the external electric piping box can be selected, and the appearance is not impaired. Arrangement is possible.
Moreover, since the outside indoor air can flow through the wire insertion hole H1 and the air circulation hole H3 in the heater unit box 1, the heat dissipated in the heater unit box 1 helps the room heating. And an indoor heating system in which heat loss does not substantially occur.

  In addition, as shown in FIG. 2, the heater unit box 1 includes a left side plate 1L having an L-shaped cross section that bends and extends a corner side 1A at both ends, and an end of the corner side 1A is an L-shaped anchor piece 1C. The abutting anchor pieces 1F to be brought into contact with the anchor pieces 1C of the left side plate 1L are arranged at both ends of the right side plate 1R having the L shape in cross section, and placed at appropriate positions on the upper and lower ends of the left side plate 1L and the right side plate 1R having the L shape in cross section. It is preferable to arrange the screw hole H2 and screw the screw hole H2 of the upper lid 1U and the lower lid 1D with the screw hole H2 of the left side plate 1L and the right side plate 1R.

  Note that the left side plate 1L and the right side plate 1R are typically 1.2 mm thick steel plates, and the inner surface of the left side plate 1L is itself separated from a ball valve, cheese, and air via a conventional support member. In order to attach each necessary device such as a pressure tank, it is preferable to arrange reinforcing rib projections 1G on each side LS1, LS2 and corner side 1A of the left side plate 1L as shown in FIG.

Therefore, the heater unit box 1 can be easily assembled and separated by fitting and screwing the upper lid 1U and lower lid 1D with the left side plate 1L and the right side plate 1R, and the storage devices are attached only to the left side plate 1L. Therefore, maintenance such as inspection, repair and replacement is easy.
The presence of the anchor piece 1C and the abutment anchor piece 1F improves the workability of attaching the right side plate 1R to be removed during maintenance to the left side plate 1L, and the anchor piece 1C and the abutment anchor piece 1F are used to reinforce the box 1. It also plays a rib function.

  Further, as shown in FIG. 5, the air separation pressure tank 2 disposed in the heater unit box 1 includes a lower side 2D, a front side 2F, a rear side 2B, an upper side 2T, and both side sides 2L and 2R, and the upper side 2T is It is a box shape that is continuous with the front side 2F at the front inclined side Sf and the rear side 2B at the rear inclined side Sb, and has a connection port J1 at the center in the vertical direction of the front side 2F and the center in the vertical direction of the rear side 2B. The connection port J2 is provided in the part, the connection port J3 is provided in the rear part of the upper side 2T, and the two blades 2A and 2A 'inclined and raised rearward are formed between the two sides 2L and 2R, and the front blade 2A. However, the rear blade 2A ′ is arranged at the lower position corresponding to the rear side of the connection port J1 on the lower side and at the lower position corresponding to the upper side connection port J3.

In this case, the capacity of the air separation pressure tank 2 depends on the amount of water sealed in the circulating heating system at normal temperature (standard: 15 ° C.) and hot water (standard: 80 ° C.), and at the time of expansion. Calculated and determined from the air pressure in the tank 2, the positions of the connection ports J1, J2, and J3 are such that the connection port J1 and the connection port j2 are below the water level even when the heater unit box 1 is used laterally even at room temperature. In addition, when the heater unit box 1 is used vertically, the connection port J3 and the connection port J2 may be determined to be below the water level.
Further, both the lower blade 2A and the upper blade 2A ′ cause a control turbulent flow for promoting air separation. If the inclination angle is 30 °, the tank can be used vertically or horizontally. The function of generating a controlled turbulent flow that suppresses a naturally generated vortex and promotes air separation by a diversion action is generated.

And the air separation pressure tank 2 is made of plastic resin and is about 3 times stronger than the explosion occurrence strength at high pressure in the circulation system under the proposition that an air vent valve and a safety relief valve are unnecessary. The safety factor is typically made of a plastic resin with a thickness of 0.6 mm. With regard to the radiator 1 kw, in the vertical usage mode, the water volume is 0.19 L (liter) at room temperature and the system internal pressure is 0.01 MPa. At 80 ° C., the amount of water is 0.26 L, and the pressure in the system is 0.04 Mpa. In horizontal use, the water amount is 0.28 L, the pressure in the system is 0.01 Mpa, the water amount is 0.34 L, and the pressure in the system is 0 at 80 ° C. .04Mpa.
If the air separation pressure tank 2 is made of a semi-transparent plastic, it can be seen from the outside, and the water entry state in the tank when water is filled in the circulation heating system can be visually confirmed. Convenient for preparation and maintenance.

  Therefore, in the air separation pressure tank 2 used in the present invention, the two blades 2A and 2A ′ can control the inflowing hot water flow into the tank 2 during the vertical use and the horizontal use. As a flow, coupled with a rapid decrease in the flow velocity in the tank, the air bubbles in the water are preferably raised and separated, and the generated air in the circulation system is safely circulated in the air separation pressure tank 2. In the system, the safety relief valve of the conventional example 1 (FIG. 6) and the air separation pressure tank which do not require the arrangement of the air vent valve are provided, and the total circulation system except the radiator of the conventional example 1 (FIG. 6) is provided. Storage in one heater unit box 1, general use of the heater unit box 1 in vertical or horizontal use, and miniaturization of the heater unit box 1 are possible.

Further, in the present invention, when the rectangular heater unit 1 is vertically arranged and used, the air separation pressure tank 2 is arranged with the front side 2F on the upper side and the rear side 2B on the lower side, It is preferable that the connection port J3 of the upper side 2T is connected to the pipe heater 4 by piping, the forward pipe S is connected to the connection port J2 of the rear side 2B, and the connection port J1 of the front side 2F is closed by the cap 2C.
In this case, the circulation pump 3 only needs to mount and fix the gantry 11 on the lower lid 1 </ b> D serving as the bottom plate in the heater unit box 1.
Further, the path connection between the connection port J3 and the pipe heater 4 and between the connection port J2 and the forward pipe S may be connected by an ethylene-propylene rubber (EPDM) pipe.

Therefore, in the air separation pressure tank 2, as shown in FIG. 5D, the circulating water is at the water level of wL ₁ at normal temperature and at the water level of wL ₂ at 80 ° C., and the inflow water Fin from the connection port J3 is reduced. It becomes the effluent Fout from the connection port J2, and the flow velocity rapidly decreases in the tank 2, and the lower slat 2A in the tank 2 flows upward, the downward flow F2, and the upper slat 2A. The upward flow F3 and the downward flow F4 cause the air bubbles in the water to separate and rise to the air zone Za at the upper part of the tank closed by the cap 2C, and radiate heat from the forward pipe S of the heater unit box 1. Warm water that does not contain air can be circulated in the vessel 8.
Therefore, even if the air separation pressure tank 2 of the present invention is used in a vertical arrangement as shown in FIG. 5 (D), the function of the hermetic expansion tank and air separator of the conventional example 1 (FIG. 6) is exhibited. The heater unit box 1 can be downsized.

Further, when the square cylindrical heater unit box 1 is used in a horizontal arrangement, the upper side 2T of the air separation pressure tank 2 is arranged on the upper side, and the connection port J1 of the front side 2F is connected to the pipe heater 4 by piping. Then, it is preferable that the connection port J2 of the rear side 2B is connected to the forward pipe S by piping, and the connection port J3 of the upper side 2T is closed by the cap 2C.
In this case, as shown in FIG. 4, the circulation pump 3 may be placed and fixed on the one side LS <b> 1 of the left side plate 1 </ b> L serving as the bottom plate in the heater unit box 1 via the mount 11.
The connection port J1 and the pipe heater 4 and the connection port J2 and the forward gap S may be connected by an ethylene-propylene rubber tube.
And since the connection port J3 of the upper side 2T is airtightly sealed with the cap 2C, the lower area of the connection port J3 of the tank 2 becomes the air region Za.

Accordingly, as shown in FIG. 5 (C), the air separation pressure tank 2 becomes the water level of wL ₁ when the circulating water is at room temperature (15 ° C.), and the water level of wL ₂ at 80 ° C. The circulating inflow water Fin flows into the tank 2 from the connection port J1, and the inflowing water whose flow velocity has rapidly decreased is divided into the upper flow F1 and the lower flow F2 by the front blades 2A, and the air bubbles in the flowing water are separated. The rear slat 2A ′ is also divided into the upper flow F3 and the lower flow F4, and the air bubbles generated from the flowing water are separated and raised to the air zone Za at the upper part of the tank, and become the circulating effluent Fout. It is supplied to the forward pipe S from the rear connection port J2.

  Then, the connection port J3 on the upper side 2T is closed with a cap 2C, and in the air zone Za in the upper part of the tank 2, the maximum heating and expansion pressure of the circulating water is set below the explosion critical value (standard: 1/3 explosion pressure value). Therefore, even if the air separation pressure tank 2 is used in a horizontal arrangement as shown in FIG. 5C, the function of the hermetic expansion tank and the air separator of the conventional example 1 (FIG. 6) is exhibited. The box 1 can be downsized.

  Further, as shown in FIG. 2, for example, the heater unit box 1 has a central corner portion of the right side plate 1R formed on the inclined side 1R ', and is reinforced on both sides of the wire insertion hole H1 row on one side LS1 of the left side plate 1L. It is preferable that the rib 1G is provided in a projecting manner and the storage devices in the heater unit box 1 are attached via the inner surface of the one side LS1 of the left side plate 1L.

In this case, devices such as the circulation pump 3, the air separation pressure tank 2, and the pipe heater 4 fix a conventional hat-shaped steel at an appropriate position on one side LS1 of the left side plate, and support materials such as angle steel from the hat-shaped steel. Take out and fix it, and attach various devices to the support.
Further, the reinforcing rib 1G may be arranged in a protruding form on the outer surface when the left side plate 1L is formed with a steel plate.

Therefore, the heater unit box 1 is arranged in such a manner that the one side LS1 of the left side plate having the wire insertion hole H1 is in contact with the power supply box (not shown) on the wall surface WL or the floor surface FL. However, the reinforcing rib 1G absorbs unevenness between the heater unit box 1 and the mounting surface (wall surface WL or floor surface FL) and reinforces the device mounting surface LS1.
Various devices can be stably held by the one side LS1 of the reinforced left side plate, and the wiring of the wires from the power supply box on the mounting surface to the heater unit box 1 through the wire insertion hole H1 also causes cross-talk. It will be a short path connection.

  Moreover, the facing surface of the one side LS1 of the left side plate 1L is the right side plate 1R that functions only as an opening / closing lid, and the right side plate 1R has a central corner portion that is a curved surface 1R ′ as shown in FIG. Therefore, the operation panel 9B can be arranged on the curved surface 1R ′ as a lid, and a design effect is also exhibited. The heater unit box 1 is easy to transport and mount, and has excellent design.

In the electric heater unit box of the present invention, the heating circulation function part of the hot water circulation heating system is compactly housed in a rectangular box, so that one of the hot water circulation radiators HR corresponds to one, or 2 It is possible to dispose the radiator HR close to the radiator HR in the vertical form or the horizontal form, such as one for a stand, and it is possible to arrange a separate and independent heating system for each necessary part in the building.
Therefore, regardless of whether the building is newly constructed or renovated, the arrangement and construction of the hot water heating system can be freely performed.

  In addition, since the heater unit box 1 containing the heating unit (pipe heater) can be disposed adjacent to the radiator HR in the living room, there is little heat release loss in the connection path of the hot water circulation from the heating unit to the radiator. Since the heat dissipated in the connection path to the radiator HR and the heater unit box 1 becomes the indoor heating heat, the room heating with substantially no heat loss is provided while being a hot water circulation heating type.

[Heater unit box housing (Figs. 2 and 3)]
The heater unit box 1 stores a hot water heating function including a heater, a circulation pump, etc. of an electric hot water circulation heating system, and can be arranged vertically or horizontally adjacent to a radiator. The main body is composed of a main body box 1 and various devices to be housed.
FIGS. 2A and 2B are exploded perspective views of the housing 1, wherein FIG. 2A shows the left side plate 1L, FIG. 2B shows the right side plate 1R, FIG. 2C shows the upper lid 1U, and FIG. 2D shows the lower lid 1D. FIG. 3 (A) is a perspective view assembled into a housing, and FIG. 3 (B) is a cross-sectional view taken along line BB in FIG. 3 (A).

The casing of the heater unit box is a 1.2 mm thick steel plate processed with a pressing die. The left side plate 1L and the right side plate 1R are assembled in a square tube shape, and the upper lid 1U and the lower lid 1D are fitted to both ends. In the assembled form of FIG. 3 (A), it is a rectangular tube having a width L1 of 180 mm, a depth W1 of 160 mm, and a height h1 of 590 mm.
As shown in FIG. 2 (A), the left side plate 1L is a plate material having an L-shaped cross section and fixedly housing various devices on the inner surface, and has a height h11 of 550 mm and a side width L1 (180 mm). On the side LS1 side, five laterally long electric wire insertion holes H1 having a length of 60 mm and a height of 40 mm are drilled vertically at equal intervals (100 mm intervals), and the other side LS2 that becomes the depth W1 of the housing In this case, five vertically long air circulation holes H3 having a width of 20 mm and a height of 40 mm are formed at positions corresponding to the wire insertion holes H1.

Then, as shown in FIG. 2A, a corner side 1A having a small width W11 (standard: 35 mm) is bent and extended from the end portions of the one side LS1 and the other side LS2, and further, As shown in FIG. 3 (D), the anchor piece 1C having an L-shaped section extends inwardly by a small dimension d12 (standard: 7 mm).
In this case, the upper and lower ends of the anchor piece 1C are cut off by a small dimension d11 (standard: 10 mm).
Then, screw holes H2 are formed in the upper and lower ends of each corner side and the upper and lower ends of the corner portion of the left side plate 1L.
In addition, one side LS1 in which the wire insertion hole H1 is arranged has a storage function. Therefore, the reinforcing ribs 1G extending in the vertical direction are small in place (standard: two locations at L11 (40 mm) from each corner). It is formed in the form of a semicircular outward projection having a dimension d15 (standard: 6 mm).

  The right side plate 1R is aligned and integrated with the left side plate 1L to form a housing. The right side plate 1R is a lid plate to be removed during maintenance of various functional devices arranged on the inner surface of the left side plate 1L, as shown in FIG. As described above, the bent corner portion between the one side RS1 and the other side RS2 of the L-shaped cross section is formed on a smooth surface as an inclined side 1R ′ having a width L10 (standard: 86 mm), and the end of the one side RS1 and As shown in FIGS. 2 (B) and 3 (D), the end of the other side RS2 is bent inward to form a contact anchor piece 1F protruding a small dimension d12 (standard: 7 mm), Screw holes H2 are formed above and below the ends of the one side RS1 and the other side RS2.

  The upper lid 1U has the same shape as the lower lid 1D, and is fitted and locked to the upper end of the rectangular tube portion of the housing 1 formed by the left side plate 1L and the right side plate 1R. ), The top plate 1T has a depth W1 of 160 mm and a width L1 of 180 mm. At the opposite portion of the right side plate 1R, from the position of the length W10 (standard: 85 mm) from the bent portion EP, A deformed pentagonal plate having an inclined side TS having a length L10 (standard: 86 mm) facing the inclined side 1R 'and having one side of the rectangle as the inclined side TS, each side downward from the top plate 1T A rising piece 1P having a height of h10 (20 mm) and having a right-angled bending shape is integrally provided.

That is, the upper lid 1U has a box lid shape with the top plate 1T and the rising piece 1P.
In addition to the protruding corner portion of the rising piece 1P, a contact locking piece 1V having a protruding length d10 (10 mm) is fixed to the inner surface of the rising piece 1P. Screw holes H2 corresponding to the screw holes H2 of the plate 1L and the right side plate 1R are arranged.
The lower lid 1D has the same shape as the upper lid and is symmetrical to the top lid. A rising piece 1P having a height h10 of 20 mm is disposed around the bottom plate 1B having the same shape as the top plate 1T. In addition to the portion, the contact locking piece 1V is fixed to the inner surface of the rising piece 1P in a projecting form having a height d10 (10 mm), and the screws at the lower ends of the left side plate 1L and the right side plate 1R of the contact locking piece 1V. Screw holes H2 are arranged at positions corresponding to the holes H2.

  That is, the assembling of the casing is such that the edges of the rising pieces 1P of the lower lid 1D and the upper lid 1U collide with the upper and lower edges of the left side plate 1L and the right side plate 1R, and each contact locking piece 1V is It is only necessary to abut on the inner surfaces of the left side plate 1L and the right side plate 1R and to fix the screws. The casing 1 can be disassembled and assembled by screw fixing means of each rising piece 1P and the left side plate 1L and the right side plate 1R. And each steel plate which forms an outer surface can be formed in a flush manner.

[Air separation pressure tank 2 (Fig. 5)]
5A is an overall perspective view of the air separation pressure tank 2, FIG. 5B is a front view as viewed from the arrow B in FIG. 5A, and FIG. FIG. 5D is a longitudinal sectional view illustrating the air separation pressure tank 2.
The air separation pressure tank 2 is disposed in the hot water circulation path of the heater unit box 1 and is a novel tank that does not require the expansion tank, air separator, drain valve, and safety relief valve of the conventional example 1 (FIG. 6). Therefore, an example of a 1 to 3 kw heating tank will be described.

  The air separation pressure tank 2 is a semi-transparent plastic resin molded product having a general wall thickness of 0.6 mm, and the structure is as shown in FIG. 5C. The lower part is a length (L2) of 140 mm and a height (h3). It has a box shape with a width of 55 mm and a width (W2) of 50 mm, and the upper part has a truncated pyramid shape with a width (W3) of the upper side 2T of 38 mm, a length (L3) of 70 mm, and a height (h4) of 30 mm. The opposing front side 2F and rear side 2B are 30 mm (d5) upward from the lower end, at the center position of the width W2, and the upper side 2T is at the center of the width W3, at a position 55 mm (L5) from the rear side 2B. The connection ports J1, J2 and J3 having an outer diameter of 13 mm and a wall thickness of 0.5 mm are arranged.

In each connection port J1, J2, J3, two projections 2G having a width of 1 mm and a projection height of 0.5 mm are arranged at intervals of 6 mm in order to ensure attachment of the rubber pipe 5A or the rubber cap 2C. .
Further, as shown in FIG. 5C, in the tank 2, a front blade 2A and a rear blade 2A ′ are arranged in a passing manner between the left side 2L and the right side 2R.

  The front slat 2A has a width W5 of 35 mm, a thickness of 6 mm, and a configuration in which the rear end is inclined 30 ° upward, the front end is a distance (L6) 25 mm from the front side 2F, and the height (h5) from the lower side 2D. ) Is arranged at 20 mm, and the rear blade 2A ′ has a width W6 of 30 mm and a thickness of 6 mm, and is inclined upward by 30 °, the front end is a distance (L5) 55 mm from the rear side 2B, and the lower side 2D The height (h6) is 35 mm and the capacity in the tank 2 is 0.5L.

Accordingly, when the air separation pressure tank 2 is used sideways, as shown in FIG. 5C, the water level wL ₁ in the normal temperature (15 ° C.) water state, the water capacity 0.28 L, the air amount (space volume) 0. At 22L, inflow water Fin flows from the front side connection port J1 at a flow velocity of 0.885 m / s, and becomes a slow flow F2 having a flow velocity of 0.118 m / s below the front blade plate 2A, and flows above the blade plate 2A. F1 has a lower flow velocity than the lower flow F2, water and air are separated, and the air reaches the upper air zone Za.

Further, the unseparated air at the front blade 2A has a low flow F4 of 0.06 m / s below the rear blade 2A ', and the circulating water is two blades 2A, 2A'. However, the water in the water is completely separated by agitating the flow into the low-speed flow of F1, F2, F3, and F3.
The water level of the circulating water expanded at a high temperature (80 ° C.) reaches wL ₂ , and the upper side connection port J3 is closed with the rubber cap 2C, so that the air region Za becomes pressure air under the allowable pressure. .

When the tank 2 is used vertically, as shown in FIG. 5D, the tank 2 is disposed with the front side 2F facing upward, and the inflow water Fin flows in from the connection port J3 on the upper side 2T, and the connection port J2 on the rear side 2B. The water level at the normal temperature, that is, at the start of operation is wL ₁ and the tank 2 having an internal capacity of 0.5 L has a water capacity of 0.19 L and a space volume (air volume) of 0.31 L, and is heated. When the heating temperature reaches 80 ° C., the water level reaches wL ₂ .
Then, the inflowing water Fin of 0.885 m / s abruptly decreases in flow velocity in the tank 2 and hits the rear blade 2A ′, and the flow F1 that is guided upward to the blade 2A ′ is generated by the front blade 2A. It becomes surface flow F3 and back flow F4, and separates the air by making it a stirring and diversion at a low flow rate together with the downward flow F2, and the separation air becomes pressure air in the air region Za (standard: 0.04 Mpa or less).
In addition, what is necessary is just to use two tanks 2 together as needed, when heating capacity is set to 3 kW and reduction of the pressure in a system is aimed at.

[Circulating pump 3 (Fig. 4)]
The circulation pump 3 may be a conventional pump that can be disposed in the heater unit box 1 on the lower lid 1D when used vertically and on the one side LS1 of the left side plate 1L when used horizontally. Uses a conventional resin electromagnetic pump.
The resin electromagnetic pump is inexpensive, lightweight, has good transport and installation workability, and has a quiet noise level of 38 db, product number PMD-141B (single-phase 100V) or product made by Three-phase Electric Co., Ltd. The number PMD-142BSG (for single phase 200V) may be employed.

[Pipe heater 4 (Fig. 4)]
The pipe heater 4 is an SC heater manufactured by Thermal Engineering Co., Ltd., which is an energy-saving type having a high power density of 30 w / cm ² and a thermal efficiency of 95% by thermally spraying an insulating layer, a conductive layer, and a heat insulating insulating layer on a stainless pipe. (Product name) may be adopted.
Each pipe heater 4 of 1 kw has a pipe shape with an outer diameter of 15.88 mm, a length of 280 mm and a wall thickness of 2 mm, and the outer periphery of both ends is roughened by sandblasting, and the heating capacity If it is 3 kw, three may be employed.
Then, if the heat insulating material having a thickness of 20 mm is coated on the outer periphery of the pipe, the heat generation effect is improved.

[Piping pipes]
The pipe for piping forms a flowing water path in the heater unit box 1 and has excellent durability, heat resistance, cold resistance, solvent resistance, light weight and flexibility, and a conventional thickness of 3 mm. Then, an ethylene-propylene rubber (EPDM) rubber pipe having an inner diameter of 14 mm is employed.

[Ball valves 6A, 6B, 6C (FIG. 4)]
Ball valves 6A, 6B, 6C are water path opening / closing valves arranged in the heater unit box 1. The opening / closing valve has a 3mm diameter opening / closing hole in the cylindrical part, and a hexagon wrench is inserted into the hole. A Zalho ball valve from Valofick (Denmark), which has a pipe shape of 29.5 mm in length and has a threaded part with a diameter of 12 mm at one end, is adopted.

[Cheese (Figure 4)]
Cheese 7 and 7A are used for connecting the water path in the heater unit box 1 and are T-shaped joint fittings that can connect pipes from three sides, with a diameter of 26 mm and a length of 46 mm. A conventional T-type cheese 7 having a joint projecting 9 mm perpendicularly from the center in the length direction of the cylindrical portion is employed.

[Incorporation of equipment into the heater unit box (Fig. 4)]
For example, in the case of the horizontal heater unit box 1 shown in FIG. 4, the left side plate 1L and the lower lid 1D are connected to the screw insertion hole H2 in the assembly unit. The side 11 is placed on the upper surface of the side LS1, aligned with the stand 3S of the circulation pump 3 on the upper surface of the side LS1, and the base 11 is disposed via the bolt 3B. To fix the circulation pump 3.
Similarly, the gantry 11 is laid under the air separation pressure tank 2 and fixed on the side LS1 provided with the reinforcing rib 1G as shown in FIG. 4 (D).
Further, a support material (not shown) is erected from one side LS1 and three pipe heaters 4 are disposed.

Then, using the piping pipe, the rotary joint 3F of the circulation pump 3 and the upper pipe heater 4 are connected to the piping P2, and the piping P3 and P4 are connected between the three stages of the pipe heater 4, and the lower pipe is connected. The heater 4 and the pressure tank 2 are connected to the pipe P5, the pipe P7 is connected from the pressure tank 2 to the hot water supply port 8S of the heat radiating section 8, and the pipe P1 is connected to the outlet 8R of the heat radiating section 8 through the cross cheese 7A. To do.
Next, the control unit such as the circulation pump 3, the pipe heater 4, the thermostat (not shown), the temperature sensor (not shown), etc. is wired using the gap between the devices, and the operation panel of the electric control unit is provided. 9B is arranged on the inclined side 1R ′ of the right side plate 1R, and the right side plate 1R is fixed to the left side plate 1L and the lids 1D and 1U with screws.
In FIG. 4, the pipe P <b> 8 is an example when the moisture tank 12 is employed, and the moisture tank 12 and the pipe P <b> 8 are removed when used as a normal hermetic circulation system.

[Others]
In the embodiment, as shown in FIG. 1, one heater unit box 1 is a radiator HR framed by an upper frame 13, a lower frame 14, a side frame 15, an upper joint 16, a lower joint 17, and a cover lid 18. The heater unit box 1 may be arranged 1: 1 on the side surface of the radiator HR, and one unit for the plurality of radiators HR with a wall interposed therebetween. A vertical type or a horizontal type may be arranged correspondingly.
When the heater unit box 1 is arranged vertically (vertical type), the pressure tank 2 may be used vertically as shown in FIG. 6D. In this case, the operation panel 9B of the electronic control unit is shown in FIG. As shown in FIG.

It is the perspective view which horizontally arranged the heater unit box of the present invention under the radiator. It is a housing exploded perspective view of a heater unit box, (A) is a left side plate 1L, (B) is a right side plate 1R, (C) is an upper lid, (D) is a diagram showing a lower lid, (E) is the elements on larger scale of (C) figure. It is explanatory drawing of a heater unit box, (A) is an assembly state perspective view of a housing, (B) is a BB line sectional view of (A) figure, (C) is a C section sectional view of (A) figure. (D) is an enlarged view of part D in FIG. (B), and (E) is an enlarged view of part E in FIG. (B). It is explanatory drawing of a heater unit box, (A) is a flow system diagram of water, (B) is a cross-sectional plan view, (C) is a longitudinal front view, (D) is a longitudinal side view. It is explanatory drawing of an air separation pressure tank, Comprising: (A) is a whole perspective view, (B) is the front view seen from the arrow B of (A) figure, (C) is CC line of (A) figure A longitudinal cross-sectional view, (D) is an explanatory diagram of a vertical usage state. It is explanatory drawing of the prior art example 1, Comprising: (A) is a system system | strain diagram, (B) is a front view of the heat radiator to be used, (C) is a side view of a heat radiator. It is a vertical front view of the electric water heater of the prior art example 2.

Explanation of symbols

1 Heater unit box (frame, box)
1A Corner side 1B Bottom plate 1C Anchor piece 1D Lower lid (lid)
1F Contact anchor piece 1G Reinforcement rib (protrusion)
1K Square tube portion 1L Left side plate 1P Rising piece 1R Right side plate 1R ', TS Inclined side 1T Top plate 1U Upper lid (lid)
1V Contact locking piece (fastening piece)
2 Air separation pressure tank (pressure tank, tank)
2A Front blade (lower blade, blade)
2A 'Rear blade (upper blade, blade)
2B Rear side 2C Cap 2D Lower side 2F Front side 2G Projection 2L Left side (side)
2R Right side (side)
2T Upper side 3 Circulation pump 3F Rotating joint 3J Joint 3S Stand 4 Pipe heater 6A, 6B, 6C Ball valve 7, 7A Cheese 8 Heat radiation part 8A Horizontal pipe (plastic pipe)
8B Vertical pipe (plastic pipe)
8R Hot water discharge port (discharge port)
8S hot water supply port (supply port)
9B Operation panel 11 Base 13 Upper frame 14 Lower frame 15 Side frame 16 Upper connection 17 Lower connection 18 Cover lid EP Bending part FL Floor H1 Wire insertion hole H2 Screw hole H3 Air flow hole HR Radiator J1, J2 , J3 Connection port LS1, LS2, RS1, RS2 Sides P1-P8 Pipe R Return pipe (Return pipe)
S Outward pipe (supply pipe)
SY Hot water circulation system WL Wall surface wL ₁ , wL ₂ water level

Claims (7)

  An air separation pressure tank (2), a circulation pump (3), and a pipe heater (4) are connected to a ball valve (1) in a rectangular tube heater unit box (1) that can be opened and closed by lids (1D, 1U) at both ends. 6A, 6B, 6C), cheese (7, 7A), an electric heater unit box that is connected with a pipe and accommodates a hot water circulation function and can be connected to a hot water circulation radiator for indoor heating.   The heater unit box (1) includes a long rectangular tube portion (1K) having an L-shaped cross section, in which a long left plate (1L) and a right plate (1R) are detachably joined, and a square tube portion (1K). ) Are attached to both ends of the upper lid (1U) and the lower lid (1D) so as to be detachable, and the left side plate (1L) having an L-shaped cross section is equally spaced vertically on one side (LS1). A plurality of wire insertion holes (H1) are provided, and the other side (LS2) is provided with an air circulation hole (H3) at a position corresponding to each wire insertion hole (H1). 1 electric heater unit box.   In the heater unit box (1), the left side plate (1L) having an L-shaped cross section extends and bends the corner side (1A) at both ends, and the end of the corner side (1A) is an L-shaped anchor piece (1C). ) And an abutment anchor piece (1F) to be brought into contact with the anchor piece (1C) of the left side plate (1L) is arranged at both ends of the right side plate (1R) of the L type cross section. (1L) and right side plate (1R) screw holes (H2) are arranged at appropriate positions on the upper and lower ends, upper lid (1U) and lower lid (1D) screw holes (H2), left side plate (1L) and right side plate The electric heater unit box according to claim 2, wherein the screw hole (H2) of (1R) is screwed together.   The air separation pressure tank (2) includes a lower side (2D), a front side (2F), a rear side (2B), an upper side (2T), and both sides (2L, 2R), and the upper side (2T) It has a box shape that is continuous with the front side (2F) at the inclined side (Sf) and the rear side (2B) at the rear side inclined side (Sb), and has a connection port ( J1) is provided with a connection port (J2) at the center of the rear side (2B) in the vertical direction and a connection port (J3) at the rear part of the upper side (2T), and extends between both sides (2L, 2R), Two blades (2A, 2A ′) that incline and rise rearward, and the front blade (2A) is at the lower side and the rear blade (2A) at the position corresponding to the rear of the connection port (J1) on the front side. The electric heater unit box according to any one of claims 1 to 3, wherein ') is disposed above and at a position corresponding to the lower side of the upper side connection port (J3).   A rectangular tubular heater unit box (1) is arranged vertically, and the air separation pressure tank (2) is arranged with the front side (2F) on the upper side and the rear side (2B) on the lower side, and the connection of the upper side (2T) Connect the pipe heater (4) to the port (J3), connect the forward pipe (S) to the connection port (J2) on the rear side (2B), and connect the connection port (J1) on the front side (2F) to the cap ( The electric heater unit box according to any one of claims 1 to 4, which is closed at 2C).   A rectangular heater unit box (1) is arranged horizontally, the upper side (2T) of the air separation pressure tank (2) is arranged on the upper side, and the connection port (J1) of the front side (2F) is connected to the pipe heater (4). The connection port (J2) of the rear side (2B) is connected to the forward tube (S) by piping, and the connection port (J3) of the upper side (2T) is closed with a cap (2C). The electric heater unit box according to any one of 1 to 4.   In the heater unit box (1), the central corner of the right side plate (1R) is formed on the inclined side (1R '), and the one side (LS1) of the left side plate (1L) has a row of wire insertion holes (H1). Reinforcing ribs (1G) are provided so as to project on both sides, and storage devices in the heater unit box (1) are attached via the inner surface of one side (LS1) of the left side plate (1L). 6. The electric heater unit box according to any one of 6 above.

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