JP2004239605A - Boiler - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce an installation space of a water softener, about a boiler integrally structured with the water softener. <P>SOLUTION: A can body 3, the water softener 5 and a raw water tank 9 are provided on a bed 1, the water softener 5 and a water supply means 13 are provided on a water supply line 14 from the raw water tank 9 to the can body 3 and an outer package 20 for surrounding the can body 3, the water softener 5, the raw water tank 9 and the water supply means 13 is provided. The water softener 5 is provided on an upstream side of the water supply means 13. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

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

  As is well known, a water softener is connected to the boiler to prevent the scale from adhering to the inner 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 separate device from the boiler, the water softener requires an installation space for the water softener, and the boiler requires an installation space for the boiler. Further, since the water softener and the boiler are connected by a water supply pipe at an installation site, the construction work is required.

  Also, since tap water is prohibited from being directly connected to the water softener, tap water is temporarily stored in a raw water tank and supplied to the water softener by a pressure pump. On the downstream side of the water softener, a soft water tank, a water supply pump, and a can are arranged in this order, and soft water is once stored in the soft water tank, and supplied to the can with the water supply pump. I have. Therefore, a great deal of labor is required for the construction work of these devices, and it is necessary to make the water softener high in pressure resistance.

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

  SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and the invention according to claim 1 is to dispose a can body, a water softener and a raw water tank on a bed and supply water from the raw water tank to the can body. The water softener and the water supply means are provided on the line, and an exterior body surrounding the can body, the water softener, the raw water tank and the water supply means is provided.

  Further, the invention according to claim 2 is characterized in that the water softener is provided upstream of the water supply means.

  According to the present invention, the water softener and the raw water tank are arranged integrally with the can body, so that the installation space can be reduced and the pressurizing pump and the soft water tank can be eliminated. Further, since the water softener is installed on the upstream side of the water supply means, the water softener can have low pressure resistance.

  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 integrally arranged in a state of being close to each other. When the can is arranged on the bed, if the water softener is also arranged on the bed, both can be more compactly integrated. Further, the bed may be provided with a first bed for the can body and a second bed for the water softener, and the first and second beds may be installed closely.

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

  The boiler includes a raw water tank, and a water supply line from the raw water tank to the can is provided with the water softener and water supply means such as a water supply pump. 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 head difference of the raw water tank. Since only 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 an 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. Preferably, the water softener is one which performs a regeneration treatment by causing salt water to flow down from the salt water tank to the resin cylinder by a difference in head. By doing so, it is not necessary to provide a salt water supply means, and the configuration of the whole water softener can be made compact.

  Here, the raw water tank, the salt water tank, and the resin cylinder are arranged in the vertical direction in the order of the raw water tank, the salt water tank, and the resin cylinder from above. By doing so, each of these devices is arranged in the up-down direction, so that the overall configuration can be made slim and take up little installation space. Further, the raw water tank may be installed in a side-by-side state on the side of the salt water tank.

  Further, when an outer body such as a casing is provided to surround the can body and the water softener, a salt inlet is provided at a position above the salt water tank in the outer body, and through this salt inlet, The salt for producing the salt water can be easily replenished into the salt water tank. The salt inlet is usually closed by an opening / closing lid, and is opened when salt is injected. In order to facilitate the charging operation, it is preferable that the salt inlet is provided in a front outer body of the outer body. The exterior body does not necessarily need to be provided on the entire front, rear, left and right surrounding the can body and the water softener, but is provided on at least one surface.

  As described above, according to the configuration, the water softener can be disposed integrally with the can body, and the installation space can be reduced. Therefore, even when replacing the existing boiler, it is not necessary to increase the installation space, and the replacement operation can be easily performed. Further, the water softener can be shipped in a configuration in which the water softener is connected to the can body in advance by piping, so that the labor for construction work at the installation site can be significantly reduced. Further, according to the above configuration, the pressurizing pump and the soft water tank in the conventional configuration are not required, the configuration is simple and compact, and the labor of the construction work at the installation site can be further reduced.

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

The water softener 5 includes a resin tube 7 and a salt water tank 8. An ion exchange resin is accommodated in the resin tube 7, while the ion exchange resin is regenerated in the salt water tank 8. Salt water is stored. The water softener 5 is configured to perform a regeneration process by causing salt water to flow down from the salt water tank 8 to the resin cylinder 7 due to a difference in head. 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 tube 7 are arranged in the vertical direction in the order of the raw water tank 9, the salt water tank 8, and the resin tube 7 from above.

  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 flowing down 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 a water supply means 13 such as a water supply pump. The raw water line 10 and the soft water line 12 constitute a water supply line 14 extending from the raw water tank 9 to the can 3. . In the soft water line 12, a first check valve 15 and a second check valve 16 are provided on the upstream and downstream sides 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, and a flow path structure 17 ( (Shown by a two-dot chain line). Further, the flow path constituting body 17 can be integrally formed 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 will be omitted. In the second embodiment, the bed 1 is constituted by two members, a first bed 18 and a second bed 19. That is, the can body 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 They are arranged in close contact. The first bed 18 and the second bed 19 are connected by an appropriate connecting means (not shown), and the soft water line 12 is also connected in the middle by an appropriate connecting means (not shown). ing.

  Next, a third embodiment shown in FIG. 5 will be described. Also in this case, the same reference numerals are given to the same components as those in the above-described embodiments, and the detailed description thereof will be omitted. Now, 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 configured by three members of the front exterior body 21, the right exterior body, and the left exterior body 22, or can be configured only by the front exterior body 21.

  The water softener 5 is provided between the front exterior body 21 and the can body 3. 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 front lower end thereof. I have. Therefore, when replenishing the salt for producing the salt water into the salt water tank 8, the opening / closing lid 25 is opened, and the salt can be easily poured into the salt water tank 8 from the salt inlet 24. Excellent workability of salt input. The two-dot chain line in the figure indicates the open state of the open / close lid 25.

Further, the configurations of the water softener 5 and the raw water tank 9 will be described in detail with reference to FIG. 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. Further, in the resin cylinder 7, an ion exchange resin 28 is accommodated in a form sandwiched between a pair of resin outflow preventing members 29, 29. Further, in the salt water tank 8, a large number of pellet-like salts 31 are stored on a mesh member 30, and in a lower half of the salt water tank 8, salt water for regenerating the ion exchange resin 28 is provided. Is stored.

  Here, a configuration of a water supply pipe connecting the raw water tank 9, the salt water tank 8, and the resin tube 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 upstream of the first on-off valve 32 in the raw water line 10. The pressure sensor 33 detects the pressure of the raw water line 10 to detect the presence or absence of raw water in the raw water tank 9. That is, when the preset regeneration time comes, if the inside of the raw water tank 9 is empty due to water cutoff or the like, it is detected by the pressure sensor 33 and 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 interruption of the water supply or the like is eliminated, the pressure sensor 33 detects this and controls the regeneration processing of the ion exchange resin 28 to be performed.

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

  A bypass line 35 branched from the upstream side of the first on-off valve 32 in the raw water line 10 is connected between the second on-off 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.

  A sub-raw water line 37 branched from a connection 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 falling line 11 provided with a fifth on-off valve 40, and the downstream end of the salt water falling line 11 is connected to the fourth raw water line 37 at the fourth end. It is connected between the on-off valve 38 and the first orifice 39. Therefore, the salt water flow-down line 11 is connected to the upper part of the resin cylinder 7 via the sub-raw water line 37.

  Further, a water refill line 41 branched from a connection portion between the sub-raw water line 37 and the salt water flow-down line 11 is connected to a water refill portion 42 of the salt water tank 8. The water supply 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 water supply line 41 is connected to the raw water tank 9 via the secondary raw water line 37 and the raw water line 10.

Further, a first drainage line 45 is connected to an upper portion of the resin tube 7, and a seventh on-off valve 46 and a third orifice 47 are provided in this first drainage 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 on the upstream side of the second on-off valve 34. Therefore, the second drain line 49 is connected to a lower part of the resin cylinder 7 via 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. The downstream ends of the first drain line 45 and the second drain line 49 are open to the atmosphere above the resin cylinder 7. This is to ensure that even if the inside of the raw water tank 9 is emptied due to water cutoff or the like in a washing step to be described later, the inside of the resin cylinder 7 is filled with water, and air is introduced into the resin cylinder 7. This is to prevent entry.

  Here, the respective on-off valves are arranged in a parallel state at the same height in a space between the salt water tank 8 and the resin tube 7, and are driven by one driving means (not shown). It has become. Further, each of the lines can be formed by providing a partition in one resin-molded container, and can be integrally configured including the salt water tank 8 and the resin cylinder 7.

  In the above configuration, the processing steps in the water softener 5 will be described. The processing steps of the water softener 5 include the following steps: a water passing step, a back washing step, a regeneration step, an extrusion step, a washing step, and a water refilling step. The process of turning raw water into soft water is performed in the water passing process, and when a preset regeneration time of the ion exchange resin 28 is reached, a series of regeneration processes from the backwashing process to the water refilling process are performed. Has become. Further, each step from the backwashing step to the water refilling step is time-controlled based on a preset time.

  First, in the water passing 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 It flows down inside. 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 this soft water is supplied to the can 3 through the soft water line 12.

  By the way, since the first orifice 39 is provided in the sub-raw water line 37, even if the fifth on-off valve 40 in the salt water flow-down line 11 is not closed in the open state due to a failure or dust bite, The salt water in the salt water tank 8 does not flow into the can 3 via the resin tube 7 and the soft water line 12. That is, since the first orifice 39 has a flow resistance, the raw water in the sub raw water line 37 flows into the salt water tank 8 through the salt water flowing line 11 due to a head difference, and the raw water in the salt water flowing line 11 The salt water will not flow down. The raw water flowing into the salt water tank 8 is discharged from the second overflow line 51 to the outside.

  Next, in the backwash 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 the head difference and flows from the raw water line 10 into the resin cylinder 7 from below through the bypass line 35 and the soft water line 12. Then, the raw water flows upward in the resin tube 7 to loosen 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 kept open in the following steps, and in order to cope with a case where it is necessary to supply water to the can body 3 on the way, the third on-off valve 36 supplies Water can be supplied to the can 3 via a line 35. Therefore, in each of the following steps, the third on-off valve 36 is in the open state, and the description 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. Therefore, the salt water in the salt water tank 8 flows down due to the head difference, flows into the resin tube 7 through the salt water falling line 11, and regenerates the ion exchange resin 28.

  Next, in the extrusion 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 flows down due to the head difference, flows into the resin cylinder 7 through the raw water line 10 and the sub raw water line 37, and ion exchanges the salt water in the resin cylinder 7 with the ion exchange. The resin is pushed out through the second drain line 49 together with the hardness separated from the resin 28. Here, since the first orifice 39 is provided in the sub-raw water line 37, the raw water flows in the resin cylinder 7 relatively slowly, and the salt water is surely pushed out.

  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 sub-raw water line 37, cleans the ion exchange resin 28, and cleans the resin cylinder. The salt water and hardness remaining in 7 are discharged outside through the second drain line 49. Compared with the extrusion process, the raw water flows into the resin cylinder 7 from the raw water line 10, so that the raw water flows relatively quickly through the resin cylinder 7.

  Further, in the water refilling 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. Therefore, the raw water in the raw water tank 9 flows down due to the head difference, and flows into the water replenishing section 42 in the salt water tank 8 through the raw water line 10, the sub raw water line 37, and the water refilling line 41 by a predetermined amount. .

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

It is a right side explanatory view showing a first embodiment of a boiler according to the present invention. FIG. 2 is an explanatory plan view of FIG. 1. It is a right side explanatory view showing a second embodiment of a boiler according to the present invention. FIG. 4 is an explanatory plan view of FIG. 3. It is a right side explanatory view showing a third embodiment of a boiler according to the present invention, showing a state in which a right exterior body is removed. It is an explanatory view showing one example of a water softener provided in a boiler according to the present invention.

Explanation of reference numerals

1 Bed 3 Can 5 Water softener 9 Raw water tank 13 Water supply means 14 Water supply line 20 Exterior

Claims (2)

  The can body 3, the water softener 5 and the raw water tank 9 are arranged on the bed 1, and the water softener 5 and the water supply means 13 are provided on a water supply line 14 extending from the raw water tank 9 to the can body 3. A boiler provided with an exterior body 20 surrounding the water softener 5, the raw water tank 9 and the water supply means 13.   The boiler according to claim 1, wherein the water softener (5) is provided upstream of the water supply means (13).

Images