JP3800224B2 - boiler - Google Patents

Description

  The present invention relates to a boiler in which a water softener is integrated.

  As is well known, a water softener is connected to the boiler in order to prevent the scale from adhering to the wall surface of the can. This water softener uses an ion exchange resin to remove hardness components such as calcium ions and magnesium ions contained in raw water.

  By the way, since the water softener is configured as a device different from the boiler, the water softener requires an installation space for the water softener, and the boiler requires an installation space for the boiler. Moreover, since the water softener and the boiler are connected by a water supply pipe at the installation site, the construction work is necessary.

  Moreover, since the tap water is prohibited from being directly connected to the water softener, the tap water is once stored in the raw water tank and supplied to the water softener by a pressure pump. A soft water tank, a water supply pump, and a can body are arranged in this order on the downstream side of the water softener. Soft water is once stored in the soft water tank and supplied to the can body by the water supply pump. Yes. Therefore, a great deal of labor is required for the construction work of these devices, and the water softener needs to have high pressure resistance.

  The problem to be solved by the present invention is to reduce the installation space of the water softener.

  This invention was made in order to solve the said subject, and the invention of Claim 1 arrange | positions a can and a water softener on a bed, and provides the exterior body surrounding the said can and the water softener. The water softener includes a salt water tank and a resin tube, and a salt inlet is provided at a position above the salt water tank in the exterior body.

  According to this invention, the water softener can be arranged integrally with the can body to reduce the installation space, and the salt for generating salt water can be easily fed into the salt water tank through the salt inlet of the exterior body. Can be replenished.

  Next, an embodiment of the present invention will be described. The boiler according to the present invention has a configuration in which a can body and a water softener are disposed in close proximity to each other. When the can body is arranged on the bed, if the water softener is also arranged on the bed, both can be integrated more compactly. Moreover, the said bed can provide the 1st bed for the said can body, can provide the 2nd bed for the said water softener, and can also install these 1st, 2nd beds closely.

  The water softener is preferably disposed in front of the can body in order to improve maintainability. In front of the can body, there is provided a space in which an accessory device such as an electric circuit for control is disposed, and this space is used as an installation space for the water softener.

  Moreover, the said boiler is provided with the raw | natural water tank, The water supply means, such as the said water softener and a water supply pump, are provided in the water supply line from this raw | natural water tank to the said can body. When the water softener and the water supply means are arranged in the order of the water softener and the water supply means from the upstream side, the water softener is installed on the suction side of the water supply means, and the pressure depends on the water head difference of the raw water tank. Since only the pressure acts, the pressure resistance can be reduced.

  By the way, the water softener is configured to include a resin cylinder and a salt water tank, and the ion exchange resin is accommodated in the resin cylinder, while the ion exchange resin is regenerated in the salt water tank. Salt water is stored. Further, the water softener is preferably one that performs a regeneration process by flowing salt water down from the salt water tank to the resin cylinder by a head difference. By doing so, it is not necessary to specially provide salt water supply means, and the configuration of the entire water softener can be made compact.

  Here, the raw water tank, the salt water tank, and the resin cylinder are arranged in the order of the raw water tank, the salt water tank, and the resin cylinder from above in the vertical direction. By doing so, each of these devices will be arranged in the vertical direction, and the whole can be made slimmer and does not take up installation space. The raw water tank may be installed in a side-by-side state on the side of the salt water tank.

  Furthermore, when an exterior body such as a casing is provided so as to surround the can body and the water softener, a salt inlet is provided at a position above the salt water tank in the exterior body, and through the salt inlet, The salt for generating salt water can be easily replenished into the salt water tank. The salt inlet is normally closed by an open / close lid, and can be opened when salt is added. In order to facilitate the charging operation, the salt charging port is preferably provided in the front exterior body of the exterior body. The exterior body does not necessarily have to be provided on the entire front, back, left, and right surrounding the can body and the water softener, and is provided on at least one surface.

  As mentioned above, according to the said structure, the said water softener can be arrange | positioned integrally with the said can body, and the installation space can be reduced. Therefore, when replacing a boiler that has already been installed, it is not necessary to increase the installation space, and the replacement work can be performed easily. In addition, the water softener can be shipped in a configuration that is connected to the can body in advance by piping, and the labor of construction work at the installation site can be greatly reduced. Furthermore, according to the said structure, the pressurization pump and soft water tank in a conventional structure become unnecessary, it becomes a simple and compact structure, and the effort of the construction work in an installation site can be reduced further.

  Hereinafter, embodiments of the boiler according to the present invention will be described with reference to the drawings. FIG. 1 and FIG. 2 are explanatory views showing a first embodiment of the boiler according to the present invention, FIG. 1 is a right side explanatory view, and FIG. 2 is a plan explanatory view. In the boiler according to the present invention, a can body 3 is provided in a substantially central portion on a bed 1 via a gantry 2, and a burner 4 is provided on an upper portion of the can body 3. On the other hand, a water softener 5 is provided on the front portion of the bed 1 via a support member 6, and the can 3 and the water softener 5 are integrally disposed on the bed 1. In other words, the can body 3 and the water softener 5 are arranged close to each other, so that the installation space of the boiler can be reduced.

The water softener 5 includes a resin cylinder 7 and a salt water tank 8, in which the ion exchange resin is accommodated in the resin cylinder 7, while the ion exchange resin is regenerated in the salt water tank 8. Of salt water is stored. And the said water softener 5 is the structure which makes salt water flow down from the said salt water tank 8 to the said resin cylinder 7 with a water head difference, and performs a regeneration process. A raw water tank 9 is provided above the water softener 5. Therefore, the raw water tank 9, the salt water tank 8 and the resin cylinder 7 are arranged in the order of the raw water tank 9, the salt water tank 8 and the resin cylinder 7 from above in the vertical direction.

  The raw water tank 9 and the upper part of the resin cylinder 7 are connected by a raw water line 10, and the salt water tank 8 and the middle of the raw water line 10 are connected by a salt water flow line 11. On the other hand, the lower part of the resin cylinder 7 and the can 3 are connected by a soft water line 12. The soft water line 12 is provided with water supply means 13 such as a water supply pump, and the raw water line 10 and the soft water line 12 constitute a water supply line 14 from the raw water tank 9 to the can body 3. . The soft water line 12 is provided with a first check valve 15 and a second check valve 16 on the upstream side and the downstream side of the water supply means 13, respectively.

  Here, a part of the soft water line 12, the salt water flow down line 11 and the raw water line 10 can be formed by providing a partition in one resin-molded container, for example. (Shown by a two-dot chain line). Further, the flow path structure 17 can be formed integrally with the resin cylinder 7 and the salt water tank 8.

  Next, a second embodiment shown in FIGS. 3 and 4 will be described. Here, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the second embodiment, the bed 1 is composed of two members, a first bed 18 and a second bed 19. That is, the can 3 is provided on the first bed 18, the water softener 5 is provided on the second bed 19, and the first bed 18 and the second bed 19 are Arranged in close proximity. The first bed 18 and the second bed 19 are connected by appropriate connecting means (not shown), and the soft water line 12 is also connected by appropriate connecting means (not shown) in the middle. ing.

  Next, a third embodiment shown in FIG. 5 will be described. Also in this case, the same reference numerals are assigned to the same constituent members as those in the above embodiments, and the detailed description thereof is omitted. In the third embodiment, an exterior body 20 is provided along the four sides of the bed 1 so as to surround the can body 3 and the water softener 5. The exterior body 20 includes four members, a front exterior body 21, a right exterior body (not shown), a left exterior body 22, and a rear exterior body 23. The front exterior body 21 includes an operation switch and the like. A display unit (not shown) such as an operation unit and a liquid crystal display screen is provided. Here, the exterior body 20 can be composed of three members, the front exterior body 21, the right exterior body, and the left exterior body 22, or can be composed of only the front exterior body 21.

  The water softener 5 is provided between the front exterior body 21 and the can 3, and the front exterior body 21 has a salt inlet 24 at a position immediately above the salt water tank 8. Is provided. An opening / closing lid 25 is attached to the salt inlet 24, and the opening / closing lid 25 rotates from a substantially vertical state to a substantially horizontal state around the lower end on the front side. Yes. Therefore, when replenishing salt for generating salt water into the salt water tank 8, the opening / closing lid 25 is opened, and salt can be easily charged into the salt water tank 8 from the salt inlet 24. The workability of adding salt is excellent. A two-dot chain line in the drawing indicates an open state of the opening / closing lid 25.

Furthermore, based on FIG. 6, the structure of the said water softener 5 and the said raw | natural water tank 9 is demonstrated in detail. A raw water supply line 26 is connected to the raw water tank 9, and the raw water supply line 26 is extended from a water supply or the like. In the raw water tank 9, a ball tap mechanism 27 for controlling the amount of makeup water is provided. An ion exchange resin 28 is accommodated in the resin cylinder 7 so as to be sandwiched between a pair of resin outflow prevention members 29 and 29. Further, a large number of pellet-like salts 31 are accommodated on the mesh member 30 in the salt water tank 8, and salt water for regenerating the ion exchange resin 28 is disposed in the lower half of the salt water tank 8. Is stored.

  Here, a water supply pipe configuration connecting the raw water tank 9, the salt water tank 8, and the resin cylinder 7 will be described. The raw water tank 9 and the upper part of the resin cylinder 7 are connected by the raw water line 10 provided with a first on-off valve 32. A pressure sensor 33 is provided on the upstream side of the first open / close valve 32 in the raw water line 10. The pressure sensor 33 detects the presence of raw water in the raw water tank 9 by detecting the pressure of the raw water line 10. That is, when the regeneration time set in advance is reached, if the inside of the raw water tank 9 is empty due to water interruption or the like, it is detected by the pressure sensor 33 so that the regeneration process of the ion exchange resin 28 is not performed. When the raw water tank 9 is filled with the raw water after the water interruption or the like is eliminated, the pressure sensor 33 detects that and controls the regeneration of the ion exchange resin 28.

  The lower part of the resin cylinder 7 and the can 3 (not shown in FIG. 6) are connected by the soft water line 12. A second opening / closing valve 34 is provided on the soft water line 12 upstream of the first check valve 15.

  Further, a bypass line 35 branched from the upstream side of the first opening / closing valve 32 in the raw water line 10 is connected between the second opening / closing valve 34 and the first check valve 15 in the soft water line 12. ing. The bypass line 35 is provided with a third on-off valve 36.

  Further, a secondary raw water line 37 branched from a connection portion between the raw water line 10 and the bypass line 35 is connected to an upper portion of the resin cylinder 7. The secondary raw water line 37 is provided with a fourth on-off valve 38 and a first orifice 39 in order from the upstream side.

  The salt water tank 8 is connected to the salt water flow line 11 provided with a fifth on-off valve 40, and the downstream end of the salt water flow line 11 is connected to the fourth raw water line 37. Connected between the on-off valve 38 and the first orifice 39. Therefore, the salt water flowing down line 11 is connected to the upper part of the resin cylinder 7 through the auxiliary raw water line 37.

  In addition, a supplementary water line 41 branched from a connection portion between the secondary raw water line 37 and the salt water flow-down line 11 is connected to the supplementary water portion 42 of the salt water tank 8. The supplementary water line 41 is provided with a sixth on-off valve 43 and a second orifice 44 in order from the upstream side. Therefore, the upstream end of the replenishment water line 41 is connected to the raw water tank 9 via the secondary raw water line 37 and the raw water line 10.

  Furthermore, a first drain line 45 is connected to the upper part of the resin cylinder 7, and a seventh on-off valve 46 and a third orifice 47 are provided in this first drain line 45 in order from the upstream side. A second drain line 49 provided with an eighth on-off valve 48 is connected to the soft water line 12 upstream of the second on-off valve 34. Therefore, the second drain line 49 is connected to the lower part of the resin cylinder 7 through a part of the soft water line 12. The raw water tank 9 is provided with a first overflow line 50, and the salt water tank 8 is provided with a second overflow line 51. By the way, the downstream end portions of the first drainage line 45 and the second drainage line 49 are open to the atmosphere above the resin cylinder 7. This is because the resin cylinder 7 is filled with water even when the raw water tank 9 is emptied due to water breakage or the like in a cleaning process, which will be described later, and air is introduced into the resin cylinder 7. This is to prevent entry.

  Here, each said on-off valve is arrange | positioned in the parallel state in the same height in the space between the said salt water tank 8 and the said resin cylinder 7, and the structure driven by one drive means (illustration omitted). It has become. Each line can be formed by providing a partition in one resin-molded container, and can be configured integrally including the salt water tank 8 and the resin cylinder 7.

  In the configuration as described above, the processing steps in the water softener 5 will be described. The treatment process of the water softener 5 includes a water flow process, a backwash process, a regeneration process, an extrusion process, a washing process, and a water replenishment process. The process of softening the raw water is performed in the water flow process, and when the preset regeneration time for the ion exchange resin 28 is reached, a series of regeneration processes from the backwash process to the water replenishment process are performed. It has become. Each process from the backwashing process to the water replenishing process is time-controlled based on a preset time.

  First, in the water flow step, the first on-off valve 32, the second on-off valve 34, and the fourth on-off valve 38 are in an open state, and the other on-off valves are in a closed state. Therefore, when the water supply means 13 is operated to suck the raw water in the raw water tank 9, the raw water flows into the resin cylinder 7 through the raw water line 10 and the auxiliary raw water line 37, and the resin cylinder 7 Flows downward in the interior. Then, due to the action of the ion exchange resin 28, hardness components such as magnesium ions and calcium ions in the raw water are removed to become soft water, and the soft water is supplied to the can body 3 through the soft water line 12.

  By the way, since the first orifice 39 is provided in the secondary raw water line 37, even if the fifth on-off valve 40 in the salt water flow-down line 11 does not close in an open state due to failure, dust biting, etc. The salt water in the salt water tank 8 does not flow into the can body 3 via the resin cylinder 7 and the soft water line 12. That is, since the first orifice 39 becomes a flow resistance, the raw water in the secondary raw water line 37 flows into the salt water tank 8 via the salt water flowing line 11 due to a head difference, and the salt water flowing line 11 The salt water will not flow down. The raw water that has flowed into the salt water tank 8 is discharged from the second overflow line 51 to the outside.

  Next, in the backwashing step, the second on-off valve 34, the third on-off valve 36, and the seventh on-off valve 46 are opened, and the other on-off valves are closed. Therefore, the raw water in the raw water tank 9 flows down due to a head difference, and flows from the raw water line 10 through the bypass line 35 and the soft water line 12 into the resin cylinder 7 from below. Then, the raw water flows upward in the resin cylinder 7, loosens the layer of the ion exchange resin 28, and is discharged from the first drainage line 45 to the outside.

  Here, the third on-off valve 36 is continuously opened in each of the following steps, and in order to cope with the case where it becomes necessary to supply water to the can 3 on the way, the raw water is bypassed. Water can be supplied to the can 3 via the line 35. Therefore, in each of the following steps, the third on-off valve 36 is in an open state and description thereof is omitted.

  Next, in the regeneration step, the fifth on-off valve 40 and the eighth on-off valve 48 are opened, and the other on-off valves are closed. Accordingly, the salt water in the salt water tank 8 flows down due to a head difference, flows into the resin cylinder 7 through the salt water flow line 11, and regenerates the ion exchange resin 28.

Next, in the extruding step, the fourth on-off valve 38 and the eighth on-off valve 48 are opened, and the other on-off valves are closed. Therefore, the raw water in the raw water tank 9 is
It flows down due to the water head difference, flows into the resin cylinder 7 through the raw water line 10 and the auxiliary raw water line 37, and the salt water in the resin cylinder 7 is combined with the hardness separated from the ion exchange resin 28. Then, it is pushed out through the second drainage line 49. Here, since the first orifice 39 is provided in the secondary raw water line 37, the raw water flows relatively slowly through the resin cylinder 7 to reliably push out salt water.

  Next, in the cleaning step, the first on-off valve 32, the fourth on-off valve 38, and the eighth on-off valve 48 are opened, and the other on-off valves are closed. Therefore, the raw water in the raw water tank 9 flows down due to the head difference, flows into the resin cylinder 7 from the raw water line 10 and the auxiliary raw water line 37, and cleans the ion exchange resin 28, so that the resin cylinder 7 is discharged to the outside through the second drainage line 49. Compared with the extrusion process, since raw water flows into the resin cylinder 7 also from the raw water line 10, the raw water flows through the resin cylinder 7 relatively quickly.

  Further, in the water replenishment step, the first on-off valve 32, the fourth on-off valve 38, and the sixth on-off valve 43 are opened, and the other on-off valves are closed. Accordingly, the raw water in the raw water tank 9 flows down due to a head difference, and flows into the water replenishing section 42 in the salt water tank 8 through the raw water line 10, the auxiliary raw water line 37 and the water replenishing line 41. .

  As described above, the regeneration process of the ion exchange resin 28 is completed.

It is right side explanatory drawing which shows the 1st Example of the boiler which concerns on this invention. FIG. 2 is an explanatory plan view of FIG. 1. It is right side explanatory drawing which shows the 2nd Example of the boiler which concerns on this invention. FIG. 4 is an explanatory plan view of FIG. 3. It is right side explanatory drawing which shows the 3rd Example of the boiler which concerns on this invention, and has shown the state which removed the right side exterior body. It is explanatory drawing which shows one Example of the water softener provided in the boiler which concerns on this invention.

Explanation of symbols

1 bed 3 can body 5 water softener 7 resin cylinder 8 salt water tank 20 exterior body 24 salt inlet

Claims (1)

  The can body 3 and the water softener 5 are arranged on the bed 1, and an exterior body 20 surrounding the can body 3 and the water softener 5 is provided. The water softener 5 includes a salt water tank 8 and a resin cylinder 7, and the exterior body A boiler in which a salt inlet 24 is provided at a position above the salt water tank 8 in 20.

Images