JP4020718B2 - Connected water heater - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connected hot water supply apparatus configured by arranging a plurality of hot water heaters in parallel.
[0002]
[Prior art]
When water heaters are used in facilities that require hot water supply to a large number of locations such as hotels and general hospitals, the hot water supply capacity of the water heater is designed with a margin assuming that it will be used simultaneously at all hot water locations. .
[0003]
In this case, a large-sized water heater can be newly designed and manufactured, but the minimum operating water amount that does not overheat the heat exchanger with a minimum heating amount becomes large, and cannot be used when the hot water amount is small. . For this reason, it is good to connect several some general-purpose small hot water heaters, and to comprise as a connection hot water supply apparatus.
[0004]
For example, Japanese Patent No. 2767500 is known as such a connected hot water supply apparatus. As a general-purpose water heater, for example, a housing is provided, a heat exchanger is provided in the housing, and a water supply pipe for supplying clean water to the heat exchanger and a hot water outlet pipe are connected. A gas pipe for supplying fuel gas is connected to a gas burner which is a heating source of the heat exchanger. The other ends of these pipes are connected to pipe connection portions provided on the lower surface of the casing. Then, the number of water heaters to be used is determined according to the required hot water supply capacity.
[0005]
When installing a connected hot water supply device, a frame with a T-shaped cross section is installed at a predetermined location according to the number of hot water heaters to be used. In this case, two water heaters can be mounted side by side on the front and back of the upper part of the gantry frame.
[0006]
After the water heater is attached to the gantry frame, the main water pipe connected to the water source, the combined spilled hot water pipe leading to each hot water supply point, and the original gas pipe connected to the gas source are installed at the lower part of the gantry frame. And after connecting each branch pipe of a branch water supply pipe, a branch hot water pipe, and a branch gas pipe between each pipe connection part of each water heater, and each pipe, required electrical wiring etc. are performed.
[0007]
[Problems to be solved by the invention]
By the way, in the above, all the piping, wiring, etc. are performed at the installation site from the installation of the gantry frame, so the necessary wiring, piping, etc. are packed in a water heater etc., transported to the installation location, and unpacked there Since this work is performed, there is a problem that these parts are lost or accidentally discarded at the installation site.
[0008]
In particular, when a plurality of gantry frames are arranged side by side to form a connected hot water supply apparatus, a plurality of small parts such as joints for connecting the respective pipes are bundled, so that the possibility of being lost further increases.
[0009]
Then, this invention makes it a subject to provide the connection hot water supply apparatus which can prevent the loss of components required for a connection in view of the said point.
[0010]
[Means for Solving the Problems]
In order to solve this problem, a connected hot water supply apparatus of the present invention includes a main hot water supply apparatus provided with a main hot water heater on a rectangular parallelepiped main rack, and the main hot water supply apparatus has the same shape as the main rack. A first subordinate hot water supply device provided with a first subordinate hot water heater on a subbase, which can be installed side by side on the main hot water supply device, and a second rectangular parallelepiped having the same width and height as the main base At least one unit selected from the second subordinate hot water supply apparatus provided with the second subordinate hot water heater on the subordinate base, which can be installed side by side on the back of the main hot water supply apparatus and the first subordinate hot water supply apparatus, It is a connected hot water supply device that is connected so as to be intimately connected to each other so as to have a required hot water supply capacity, and of the main gantry, the first cradle, and the second cradle, the main gantry includes an original water supply pipe and a combined effluent hot water pipe. provided with a flange for each connection on the outside of the main frame relative to the first従架stand Beauty second従架table, the component housing chamber to enable accommodation of parts required for connection is provided, characterized in that is housed flexible pipe is a component necessary for connection to the equipment housing.
[0011]
According to the present invention, the required hot water supply capacity is calculated on the assumption that the hot water is used simultaneously at all hot water supply locations, and the number of sub-hot water supply devices connected to the main hot water supply device is determined. At the installation site, the main hot water supply device is first installed, and one sub-hot water supply device is connected to the main hot water supply device.
[0012]
At that time, the main water base and the sub base are brought into close contact with each other to connect the hot water supply devices. In this case, since the parts required for connection are stored in the parts storage room provided on the stand, these parts must be lost or accidentally discarded at the installation site during unpacking. There is no.
[0013]
Next, the necessary secondary water heater is connected in the same procedure. Then, the main water supply pipe, the combined outflow hot water pipe, and the original gas pipe are installed inside each base, and each pipe is connected to the water supply pipe, the hot water supply pipe, and the gas pipe of the water heater through the branch pipes, and then necessary wiring is made. Do.
[0014]
Here, after installing each hot water supply apparatus, it takes time to install the main water supply pipe, the combined outflow hot water pipe, and the original gas pipe. For this reason, the gas which supplies fuel gas to the heating means of the heat exchanger of the said main water heater, a 1st sub-water heater, and a 2nd sub-water heater inside the said main stand, a 1st sub-base, and a 2nd sub-base At least one of an original gas pipe piece to which one end of the pipe is connected, an original water supply pipe piece to which one end of the water supply pipe to the heat exchanger is connected, and a combined effluent hot water pipe piece to which one end of the outlet pipe from the heat exchanger is connected One pipe piece may be provided, and the pipe pieces may be connected to each other through a connecting pipe.
[0015]
In this case, for example, if the flexible pipe is included in the part, it is possible to prevent the expensive part from being lost.
[0016]
In addition, for example, circulation in which hot water heated by each water heater is circulated through each hot water supply station on the main frame so that hot water can be supplied directly even when there is a distance of the hot water pipe from the connected hot water supply device to the hot water supply station. It is preferable to provide a pump and an expansion tank that adjusts the pressure in the circulation path .
[0017]
DETAILED DESCRIPTION OF THE INVENTION
1 to 4, reference numeral 1 denotes a connected hot water supply apparatus of the present invention configured by connecting general-purpose water heaters. The connected hot water supply apparatus 1 has a main hot water supply apparatus 10a. The main hot water supply apparatus 10a has a rectangular parallelepiped main mount 2a composed of a quadrangular prism frame, and a top plate 21a provided on the upper surface thereof is formed as a mounting portion for the hot water heater. A main water heater 3a which is a small water heater (for example, No. 50) is placed.
[0018]
Two first sub-water heaters 10b are connected side by side on one side of the main water heater 10a (in the present embodiment, the right side in FIG. 2). The 1st subordinate hot water supply apparatus 10b has the 1st substation 2b of the same form as the main stand 2a, and the top plate 21b which is a mounting part has the 1st submersible hot water which has the same hot water supply capability as the main water heater 3a. Containers 3b are respectively placed.
[0019]
One second secondary hot water supply device 10c is connected to the back surface of the first secondary hot water supply device 10b located at one end. The second follower hot water supply device 10c has a rectangular parallelepiped second follower 2c composed of a quadrangular prism frame so as to have the same width and height as the main stand 2a. A second secondary water heater 3c having the same hot water supply capability as that of the main water heater 3a is placed facing away from the main water heater 3a.
[0020]
In this case, the main hot water supply device 10a, the first secondary hot water supply device 10b, and the second secondary hot water supply device 10c are connected so that the main mount 2a, the first follower 2b, and the second follower 2c are in close contact with each other. In addition, you may make it improve airtightness, for example by providing a heat insulating material in the place where the main stand 2a, the 1st follower stand 2b, and the 2nd follower stand 2c mutually contact.
[0021]
The main water heater 3a and the first and second sub-water heaters 3b and 3c each have a casing 31, and a heat exchanger (not shown) having a gas burner as a heating source is provided in the casing 31. ) Is provided.
[0022]
A water supply pipe for supplying clean water and an outlet pipe are connected to the heat exchanger, and a gas pipe for supplying fuel gas is connected to the gas burner via a proportional valve. The other ends of these pipes are connected to pipe connection portions 22a, 22b, and 22c provided through the lower surface of the casing 21, respectively.
[0023]
Here, after connecting the 1st and 2nd subordinate hot water supply apparatuses 10b and 10c to the main hot water supply apparatus 10a, the main water supply pipe 4 connected to the water source, the combined outflow hot water pipe 5 leading to each hot water supply point P, and the gas source Each pipe of the connected source gas pipe 6 is installed, and a branch water supply pipe 41, a branch outlet pipe 51, and a branch gas pipe 61 are connected between the pipes 4, 5, 6 and the pipe connection portions 22a, 22b, 22c. Need to be connected respectively.
[0024]
In this case, all the pipes of the main water supply pipe 4, the combined spilled hot water pipe 5 and the original gas pipe 6 are arranged in the internal space (first space) of the main cradle 2a and the first and second cradles 2b and 2c. Then, the work space becomes narrow and the connection work becomes troublesome.
[0025]
In the present embodiment, the areas of the top plates 21a, 21b of the main gantry 2a and the first cradle 2b are set larger than the areas of the lower surfaces of the casings 31 of the main water heater 3a and the first sub water heater 3b. When the main water heater 3a and the first secondary water heater 3b are placed on the gantry 2a and the first secondary water basin 2b, respectively, at least one pipe 4, 5 on the back of the main hot water heater 3a and the first secondary water heater 3b. , 6 is placed on the front side of the top plates 21a, 21b so that a second space that can accommodate 6 is formed (see FIGS. 2 and 3). A portion excluding the placement portion located on the front side of the top plates 21a and 21b was defined as a pipe placement portion.
[0026]
In this case, for example, it is preferable to arrange the original gas pipe 6 in the space in which it is difficult to confirm a seal failure at each of the pipe connection portions 22a, 22b, and 22c.
[0027]
Although the area of the top plate 21c of the second follower 2c is larger than the area of the lower surface of the casing 31 of the second follower water heater 3c, the top plate 21b of the first follower 2b is used to reduce the installation area of the connected hot water supply device 1. When the second sub-water heater 3c is placed on the second cradle 2c, the third space that enables the branch gas pipe 61 to be connected to the original gas pipe 6 is the second sub-water heater 3c. The mounting portion was arranged on the front side of the top plate 21c so as to be formed on the back surface of the top plate (see FIG. 3). A portion excluding the placement portion located on the front side of the top plate 21c was defined as a pipe placement portion.
[0028]
Further, a support member 23 having a substantially I-shaped cross section is provided at a predetermined position of the mounting portion of the main cradle 2a, the first cradle 2b, and the second cradle 2c, and the main water heater 3a and the first sub water heater 3b and the second secondary water heater 3c are fixed to the support member 23 together with the top plates 21a, 21b, 21c (see FIG. 4).
[0029]
A joint portion 24 is provided through the top plate 21 at a substantially central portion of each pipe arrangement portion of the main cradle 2a, the first cradle 2b, and the second cradle 2c. The joint portion 24 is arranged in a branch gas pipe 61 branched from the original gas pipe 6 arranged in the second space, and in the internal space of the main cradle 2a, the first cradle 2b and the second cradle 2c. A connecting pipe 62 that enables connection to the fuel gas pipe connecting portion 22c on the lower surface of the housing 31 is connected.
[0030]
Thereby, since the connection work of the end of the branch gas pipe 61 to the original gas pipe 6 can be performed in other wide places, the pipe connection work can be further speeded up.
[0031]
Two pipe support members 25 are also arranged at predetermined intervals in the pipe placement portions of the main stand 2a and the first follower stand 2b. The pipe support member 25 has a U-shaped tip corresponding to the outer shape of the original gas pipe 6 and supports the original gas pipe 6. Moreover, a screw hole is provided in the top | upper surface of the front-end | tip part of the piping support member 25, and after mounting the original gas pipe 6 on the piping support member 25, the original gas pipe 6 can be fixed using a U volt | bolt.
[0032]
Here, if the main water supply pipe 4 and the combined spill hot water pipe 5 are installed in the internal space of the main cradle 2a, the first cradle 2b, and the second cradle 2c at the installation place of the connected hot water supply device 1, the installation work is It becomes troublesome. In the present embodiment, the main water supply water constituting the main water supply pipe 4 and the combined spilled hot water pipe 5 is provided in the internal space of the main gantry 2a, the first follower base 2b, and the second base 2c so that the piping work can be efficiently performed. A pipe piece 42 and a combined effluent hot water pipe piece 52 are provided.
[0033]
In this case, the original water supply pipe piece 42 and the combined outflow hot water pipe piece 52 are suspended by a branch water supply pipe 41 and a branch hot water pipe 51 whose one ends are connected to the pipe connection portions 22a and 22b for water supply and hot water supply of each water heater. ing.
[0034]
Then, after connecting the main gantry 2a, the first cradle 2b and the second cradle 2c in close contact with each other, each of the original water supply pipe pieces 42 and each of the combined spilled hot water pipe pieces 52 is connected to the flexible flexible pipe 40, 50 to connect.
[0035]
Here, the parts necessary for connecting the hot water supply apparatuses 10a, 10b, and 10c such as the flexible pipes 40 and 50 and the heat insulating material are bundled and transported to an installation place, and the work is performed while unpacking the parts. Therefore, those parts may be lost or accidentally discarded at the installation site.
[0036]
As shown in FIG. 5, in the present embodiment, the first and second followers 2b and 2c are provided with a component storage chamber S for storing components necessary for connection. In this case, the component storage chamber S is partitioned by two plates S1 provided at predetermined intervals on the bottom plates of the mounts 2b and 2c.
[0037]
For example, flexible pipes 40 and 50 are accommodated when the main hot water supply apparatus 10a is transported. In this case, the flexible pipes 40 and 50 may be fixed to the plate S1 by, for example, a binding band so that the flexible pipes 40 and 50 do not move within the gantry 2a due to vibration during conveyance.
[0038]
Further, it is preferable that the flexible pipes 40 and 50 are accommodated in the component accommodating chamber S in a state of being covered with a heat insulating material so as not to be scratched.
[0039]
As a result, the first and second secondary hot water supply devices 10b and 10c are connected to the installed main hot water supply device 10a, and the parts necessary for the connection of the flexible pipes 40 and 50 are the first until the decorative panel described later is removed. Since they are still housed in the first and second cradle 2b, 2c, it is possible to prevent those parts from being lost or accidentally discarded at the installation site.
[0040]
At the shipping stage, a blind plate (not shown) is attached to the other end of the pipe pieces 42, 52 inside the main cradle 2a, and is provided inside the first and second cradle 2b, 2c. Both ends of each pipe piece 42, 52 are open.
[0041]
Referring to FIG. 6, in order to reduce the number of parts and reduce the cost, at the shipping stage, decorative panels 26a, 26b that maintain the airtightness inside the gantry 2a on the front surface, both side surfaces, and the back surface of the main gantry 2a. 26c is attached. Further, decorative panels 26a and 26c are mounted on the front and back surfaces of the first follower 2b.
[0042]
In this case, the decorative panels 26a and 26b on the front surfaces of the main mount 2a and the first follower 2b and on both sides of the main mount 2a are detachable. Then, the decorative panel 26b on the side surface of the main cradle 2a to which the first subordinate hot water supply device 10b is connected is removed at one end, and after the first subordinate hot water supply device 10b is connected, the detachable decorative panel 26b on the open side surface of the first subordinate base 2b. Wear.
[0043]
On the other hand, in the second follower 2c of the second follower hot water supply device 10c connected to the back surface of the first follower hot water supply device 10b, a makeup that maintains the airtightness inside the second follower stand 2c on the front surface, both side surfaces, and the back surface. Panels 26d, 26e, and 26f are attached, and decorative panels 26d and 26e on the front and both sides thereof are detachable.
[0044]
When connecting to the first sub-water heater 10b, the decorative panels 26c, 26f of the first and second sub-bases 2b, 2c are installed in close contact with each other. In this case, the decorative panels 26c and 26f on the back side of the main gantry 2a, the first gantry 2b and the second cradle 2c are formed with openings 26g having a predetermined area so that the flexible pipes 40 and 50 can be piped. At the stage, a blind plate 26h is attached to the opening 26g.
[0045]
When a plurality of second secondary hot water supply devices 10c are connected, the side panel 26e is attached only to one second secondary support 2c as in the case of connecting the first secondary hot water supply device 10b to the main hot water supply device 10a. You may make it wear.
[0046]
Further, one end of the main water supply pipe piece 42 and the combined effluent hot water pipe piece 52 provided on the main gantry 2a is provided through one side plate (right side in FIG. 1) of the main gantry 2a, and the protruding pipe pieces 42 and 52 are provided. You may provide the flanges 43 and 53 in an edge part. Thereby, the connection work of the main water supply pipe 4 and the combined spill hot water pipe 5 can be performed outside the main mount 2a.
[0047]
By the way, it is good to make it possible to supply hot water directly even when there is a hot water pipe distance from the connected hot water supply device 1 to the hot water outlet. In the present embodiment, the main gantry 2a is provided with a circulation pump 71 and an expansion tank 72, and circulates the hot water heated by each water heater via each hot water supply location , and this circulation path. An expansion tank 72 for adjusting the internal pressure is connected to each pipe piece 42, 52.
[0048]
In addition, the main cradle 2a, the first cradle 2b, and the second cradle 2c need to be fixed using anchor bolts or the like at an installation location in preparation for, for example, an earthquake. In this case, it is often difficult to fix the main cradle 2a, the first cradle 2b, and the second cradle 2c in close contact with each other by anchor bolts.
[0049]
In the present embodiment, as shown in FIG. 7, the second base frame 81 that enables the main gantry 2a and one first cradle 2b to be installed in close contact with each other, and the other first cradle 2b, The connected hot water supply device 1 is installed using the third base frame 82 that enables the installation of the second base 2c in close contact with each other.
[0050]
In this case, two fixing plates 27a are provided at both lateral ends of the bottom surface of the main cradle 2a and the first cradle 2b so as to protrude in the front-rear direction, and at the both lateral ends of the second cradle 2c, 2 Two fixing plates 27b are provided so as to protrude only to the side of the secondary water heater 3c. Holes 28 having a predetermined diameter are formed at both ends of the fixing plates 27a and 27b in the longitudinal direction.
[0051]
The second base frame 81 made of metal is formed by combining thin plates into a rectangular shape, the width W1 of the second base frame 81 substantially matches the sum of the widths of the main mount 2a and the first follower 2b, and the depth dimension L1 is a fixed plate. 27a is approximately corresponding to the length of 27a.
[0052]
When the main stand 2a and the first follower stand 2b were installed in close contact with each other, eight fixing bolts 83 protruding upward were provided at positions corresponding to the holes 28 of the fixing plate 27a.
[0053]
The third base frame 82 is also formed by combining thin metal plates into a rectangle, and its horizontal width W2 substantially matches the horizontal width of the first or second follower 2b, 2c, and its depth dimension L2 is the first This substantially corresponds to the sum of the depth dimensions of the follower 2b and the second follower 2c.
[0054]
When the first follower base 2a and the second follower base 2c are installed in close contact with each other, the six fixing bolts 83 protruded upward at positions corresponding to the six holes 28 provided in the fixing plate 27a. Are provided.
[0055]
When installing the connected hot water supply device 1, the fixing bolts 83 are inserted through the holes 28 of the fixing plates 27 a and 27 b and fastened using, for example, nuts. Thereby, the main stand 2a, the first follower stand 2b, and the second follower stand 2c can be fixed to the second and third base frames 81 and 82.
[0056]
The second follower 2c of the second follower water heater 10c is fixed to the third base frame 82 only at both ends on the second follower water heater 3c side. For example, the first follower 2b that is in close contact with each other. If the frame and the fixing bolt are used for fastening, the second follower 2c will not become unstable.
[0057]
In addition, if a first base frame (not shown) of the same form that enables only fixing of the main gantry 2a of the main hot water supply apparatus 10a is added and three types of base frames are prepared, the main hot water supply apparatus 10a Even when any one of the first and second sub-water heaters 10b, 10c is connected, the base frame can be laid in advance according to the layout.
[0058]
Next, with reference to FIG. 1 thru | or FIG. 7, the installation procedure of the connection hot water supply apparatus 1 of this invention is demonstrated. First, assuming the case where all hot water supply points P are used simultaneously, the required hot water supply capacity is calculated, and the number of first and second sub-hot water supply devices 10b and 10c connected to the main hot water supply device 10a is determined.
[0059]
Next, the layout of the connected hot water supply device 1 is determined in consideration of the maintenance space at the installation location, and the first and second secondary hot water supply devices 10b and 10c are allocated accordingly. In the present embodiment, as described above, two first secondary hot water supply apparatuses 10b and one second secondary hot water supply apparatus 10c are connected to the main hot water supply apparatus 10a.
[0060]
In this case, the base frames 81 and 82 are selected so that the number of parts is reduced according to the layout. At the installation site of the connected hot water supply apparatus 1, the base frames 81 and 82 are arranged side by side along the layout (see FIG. 4), and are fixed using, for example, anchor bolts.
[0061]
And the main hot-water supply apparatus 10a is installed in the end of the laid 2nd base frame 81 (left side of FIG. 2). In this case, the fixing bolt 83 is installed by being inserted through the hole 28 of each fixing plate 27a, and is fastened and fixed using a nut. At this time, the decorative board 26b on one side and the piping pieces 42 and 52 for water supply and hot water are attached and the slats are removed.
[0062]
Next, one first hot water supply device 10b is inserted into one side of the main hot water supply device 10a, and four fixing bolts 83 positioned on the right side of the second base frame 81 are inserted into the holes 28 of the respective fixing plates 27a. And fasten with a nut. Subsequently, the pipe pieces 42 and 52 for water supply and hot water supply of the main hot water supply apparatus 10a and the 1st sub hot water supply apparatus 10b are connected through the flexible pipes 40 and 50, respectively.
[0063]
In the same procedure, the other first secondary hot water supply device 10b is installed and fixed on the front side of the third base frame 82. Then, the pipe | tube pieces 42 and 52 for the 1st subordinate hot water supply apparatus 10b mutual water supply and hot water supply are connected via the flexible pipes 40 and 50, respectively.
[0064]
Next, in the same manner, the second secondary hot water supply device 10c is inserted into the back surface of the other secondary hot water supply device 10b, and the two fixing bolts 83 on the rear side of the third base frame 82 are inserted into the holes 28 of the fixed plate 27b. Then, it is installed and fastened with a nut and fixed (see FIG. 6).
[0065]
In this case, the pillow 26h is removed for mounting in the opening 26g provided in the decorative panels 26c and 26f. And the pipe pieces 42 and 52 for mutual water supply and tapping are connected by the flexible pipes 40 and 50d, respectively, through the respective openings 26g.
[0066]
In addition, you may provide an elbow pipe between the piping pieces 42 and 52 for water supply and hot water, and the flexible pipes 40 and 50, respectively. On the other end of the pipes 42 and 52 for water supply and hot water provided on the second cradle 2c, a detachment plate is attached.
[0067]
Next, a single source gas pipe 6 is mounted on the pipe support member 25 in a second space formed on the back surface of each of the hot water heaters 3a and 3b of the main hot water heater 10a and the first subordinate hot water heater 10b. Put. In this case, one end of the branch gas pipe 61 for fuel gas is previously connected to the original gas pipe 6 at different locations in correspondence with the positions of the joint portions 24 of the main cradle 2a, the first cradle 2b, and the second cradle 2c. Connecting.
[0068]
Then, after the original gas pipe 6 to which each branch gas pipe 61 is connected at a predetermined interval is placed on the pipe support member 25 and the other end of the branch gas pipe 61 is connected to each joint portion 24, U The original gas pipe 6 is fixed using a bolt. The original gas pipe 6 for which the connection work has been completed can be covered with a cover.
[0069]
Finally, make the necessary electrical wiring. In this case, as shown in FIG. 8, a power cable connecting portion 91 may be provided on the support member 23 on the back surface of the main water heater 3a. In this case, an outlet 92 is provided on the upper side of the power cable connecting portion 91, and a connection plug is provided at the tip of each of the first and second secondary water heaters 2b and 2c of the first and second secondary water heaters 10b and 10c. If the power cable is wired at the time of shipment, it is possible to supply electricity to the first and second sub-water heaters 10b and 10c simply by inserting a plug into the outlet 92. Thereby, electrical wiring required only for the main hot water supply apparatus 10a may be performed, and the installation work can be further simplified.
[0070]
In the present embodiment, the hot water supply capacities of the main water heater 3a, the first secondary water heater 3b, and the second secondary water heater 3c are the same. However, the present invention is not limited to this, and the size of the casing 21 is not limited thereto. May be different from each other in the hot water supply capacity.
[0071]
In the present embodiment, one original gas pipe 6 is installed in the second space. However, in order to make the parts more common, the pipe piece for the gas pipe constituting the original gas pipe 6 is supported by the pipe. After placing and fixing in advance on the member 24 and connecting the first secondary hot water supply device 10b to the main hot water supply device 10a, each pipe piece for gas may be connected by a flexible pipe.
[0072]
【The invention's effect】
As described above, the connected hot water supply apparatus of the present invention has an effect of preventing the loss of parts necessary for connection.
[Brief description of the drawings]
1 is a perspective view of a connected hot water supply apparatus of the present invention. FIG. 2 is a front view of the connected hot water supply apparatus shown in FIG. 1. FIG. 3 is a top view of the connected hot water supply apparatus shown in FIG. Side view of the hot water supply device [Fig. 5] Front view of the first subordinate hot water supply device during transport [Fig. 6] A diagram showing each hot water supply device before connecting the hot water supply devices to each other [Fig. 7] Laying the frame frame Figure to explain [Figure 8] Figure to explain the installation situation of the connected hot water supply equipment
DESCRIPTION OF SYMBOLS 1 Connection hot-water supply apparatus 2a, 2b, 2c Base 10a Main hot-water supply apparatus 10b 1st secondary hot-water supply apparatus 10c 2nd secondary hot-water supply apparatus S Component accommodation room S1 Plate

Claims (4)

A main hot water supply device provided with a main water heater on a rectangular parallelepiped main gantry, and a first sub water heater provided with a first sub water heater on a first cradle having the same shape as the main gantry. A hot water supply device that can be installed side by side on the main hot water supply device, and a second secondary water heater provided with a second secondary water heater on a second rectangular parallelepiped stand having the same width and height as the main stand. At least one selected from the hot water supply devices that can be installed side by side on the back of the main hot water supply device and the first sub hot water supply device is connected so that the respective bases are in close contact with each other, so that the required hot water supply capacity is obtained. A connected hot water supply apparatus, wherein the main cradle, the first cradle, and the second cradle are connected to the main cradle with the main water supply pipe and the combined effluent hot water pipe outside the main cradle. the provided with, a first従架base and second従架stand, and capable of accommodating the components required for connecting That the provided component accommodating chamber, connecting hot water supply apparatus is characterized in that is housed flexible pipe is a component necessary for connection to the equipment housing.   An original gas pipe piece in which one end of a gas pipe for supplying fuel gas to the heating means of the heat exchanger of the main hot water heater, the first secondary water heater and the second secondary water heater is connected to the inside of each gantry, heat Each pipe piece is provided with at least one pipe piece of a main water supply pipe piece to which one end of a water supply pipe to the exchanger is connected and a combined outlet water pipe piece to which one end of a hot water discharge pipe from the heat exchanger is connected. The connected hot water supply apparatus according to claim 1, wherein the two are connected via a flexible flexible pipe.   The connected hot water supply apparatus according to claim 2, wherein the flexible pipe is included in the component.   A main pump is provided with a circulation pump for circulating hot water heated by each water heater via each hot water supply location, and an expansion tank for adjusting the pressure in the circulation path. Item 4. The hot water supply device according to any one of items 3.

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