JPS6374798A - Hot-water supplying device for vessel - Google Patents

Abstract

PURPOSE:To remove a heating device exclusively usde for a hot-water supplying device and reduce the consumed energy value by installing a heat exchange means which performs the heat exchange between the water for hot-water supply which flows in from an inflow port and the heated water for heating which is heated by a heat generating device. CONSTITUTION:A hot-water type heater 200 is equipped with a water tank for heating (heat storage tank) 210 in which the water for heating is stored inside. Since a hot-water supplying water tank 310 is installed in the water tank 210 for heating, the water for hot-water supply in the water tank 310 for hot-water supply performs heat exchange with the heated water for heating in the water tank 210 for heating and is used for heating, when the water in the water tank 210 for heating is heated by a preheating type heater heater 240. Therefore, the water tank 210 for heating and the water tank 310 for hot-water supply serve as a heat exchange means 320 for the heat exchange the heated water for heating and the water for hot-water supply which flows in from an inflow port 312.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a water heater that supplies hot water in a ship.

[Prior Art] For safety reasons, it is not preferable to use cooling water (warm water) for an internal combustion engine for driving the ship in a heating device or a hot water supply device inside the ship.

For this reason, when heating the interior of a ship using hot water and a heater, a heating device dedicated to the heating device is provided to heat the water for heating.

Furthermore, when a water heater is installed on a ship, a heating device dedicated to the water heater, such as an electric heater or a boiler, is installed to heat the water for hot water supply.

[Problems to be Solved by the Invention] For this reason, ships equipped with conventional hot water systems and water heaters cannot use the cooling water of the ship's navigation engine as a heat source. Since it was equipped with two heat generating devices, one dedicated to the device and the other dedicated to the hot water supply system, the problem was that the space inside the ship became narrow and the weight of the ship increased.

Furthermore, when the outside air temperature is low, such as during winter, both the heat generating device dedicated to the @ room device and the heat generating device dedicated to the hot water supply device are activated, resulting in an increase in energy consumption i.

Furthermore, each time a water heater is installed on a ship, a heat generating device dedicated to the water heater is provided, which poses a problem in that the cost of the water heater becomes extremely high.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a water heater for ships that eliminates the heat generating device dedicated to the water heater.

[Means for Solving the Problems] In order to achieve the above objects, the present invention includes a heat generating device that heats water for heating, and a heating device that receives the heating water heated by the heat generating device and heats the room. a hot water heating device equipped with a heater core for heating the water, an inlet into which water for hot water supply flows, and the water for hot water flowing in from the inlet and the water for heating heated by the heat generating device. A technical means is adopted consisting of a heat exchange means for exchanging heat and an outlet through which the water for hot water supply that has passed through the heat exchange means flows out.

When the heat generating device of the hot water heating system is activated and heating water is being heated, when water for hot water supply flows out from the outlet, the water for hot water supply flowing in from the inlet enters the heat exchange means. When passing through the water, it exchanges heat with the heated heating water and is supplied as hot water from the outlet.

[Effects of the Invention] According to the present invention, hot water generated by the heat generating device of the hot water heating device is used as the heat source of the water heater, so that
Because it is possible to abolish the heat generating device dedicated to the water heater,
It is possible to effectively utilize the space inside the ship that was conventionally used for a heat generating device dedicated to a water heater, and it is also possible to reduce the weight of the ship.

In addition, by abolishing the heat generating device exclusively for water heaters,
Since both the heat generating device dedicated to the heating system and the heat generating device dedicated to the hot water supply system are not used at the same time as in the past, energy consumption can be kept low.

Furthermore, when installing the water heater on a ship, there is no need to provide a heat generating device exclusively for the water heater, so the cost of installing the water heater on the ship can be kept low.

[Example 2] Next, a water heater for a ship according to the present invention will be described based on an example shown in the drawings.

FIG. 1 and FIG. 2 show schematic diagrams of a water heater mounted on a ship.

This ship 100 is equipped with a hot water type heating device 200 that heats the interior of the ship when the outside air temperature is low, such as during winter.

This hot water type 1'! ! The room device 200 includes a heating water tank (thermal storage tank) 210 that stores heating water therein. This heating water tank 210 is provided in the operator's cabin 110 of the ship 100, and is provided with a water supply port 211 above which supplies water for heating into the interior. This water supply port 211 is equipped with a pressure relief valve 212 that releases internal pressure to the outside when the pressure inside the heating water tank 210 reaches a predetermined pressure or higher.

The heating water stored in the heating water tank 210 is passed through a circulation path 220 to a water pump 230 and It is supplied to a preheating type heater (combustion type heater) 240.

This preheating type heater 240 is a heat generating device of the present invention, which heats water for heating supplied via the water pump 230 by exchanging heat with combustion gas such as kerosene or light oil. Further, the preheating type heater 240 is equipped with a water temperature sensor 241 that detects the humidity of the heating water on the inflow side.
The maximum heating humidity of water for heating by the preheating heater 240 is set. Incidentally, the combustion gas of the preheating type heater 240 is discharged to the outside of the boat via an exhaust duct and an exhaust booster (not shown).

The heating water that has passed through the preheating heater 240 is provided to circulate back into the heating water tank 210 via a supply path 250 and a bypass path 260 that are connected in parallel.

These heating water tank 2101 water pump 230
The preheating type heater 240, the supply path 250, and the bypass path 260 are connected via a circulation path 220, and water for heating is sequentially circulated by the operation of the water pump 230.

In the driver's cabin 110 and the bedroom 130 of the ship 100, there are heater cores 270.28 that heat the room by supplying hot water.
0 is set. This hilter core 270.280
A supply path 250 is sequentially connected to the supply path 25.
When water for heating heated to 0 is supplied, each room is heated.

Upstream and downstream of the supply path 250 (upstream of the heater core 270 and downstream of the heater core 280) are energized to open the supply path 250, and de-energized to close the supply path 250. Supply path cutoff solenoid valve 2
51.252 are provided.

Further, upstream and downstream of the bypass path 260 provided in parallel so as to bypass the supply path 250 are energized to close the bypass path 260, and de-energized to open the bypass path 260. Bypass path blocking solenoid valves 261 and 262 are provided.

The ship 100 is also equipped with a water supply system 2i 300 that supplies hot water to the faucet 301 in the kitchen room 140 and the shower head 302 in the shower room 150. The faucet 301 and the shower head 302 are the outlet of the present invention through which water for hot water supply flows out.

This hot water supply device 300 includes a hot water supply water tank 310 that stores water for hot water supply, and this hot water supply water tank 310 is arranged within the heating water tank 210 of the hot water type heating device 200. A water supply pipe 311 for supplying water for hot water supply into the hot water supply water tank 310 is provided above the hot water supply water tank 310 so as to pass through the room water tank 210 . At the upper end of the water supply pipe 311, there is an inlet 3 of the present invention through which water for hot water supply flows into the water supply pipe 311.
12, and a cap 313 is attached to this inlet port 312IC.

Since the hot water supply water tank 310 is provided within the heating water tank 210, when the heating water in the heating water tank 210 is heated by the preheating type heater 240, the hot water supply water in the hot water supply water tank 310 is It is heated by exchanging heat with the heated heating water in the room water tank 210. In this way, the heating water tank 210 and the hot water supply water tank 310 serve as the heat exchange means 320 of the present invention, which exchanges heat between the hot water supply water that has flowed in through the inlet 312 and the heated water for heating.

A cold water tank 330 is provided adjacent to the heating water tank 210 arranged in the driver's cab 110. The upper part of this cold water tank 330 is provided with an inlet 331 through which drinking water etc. flows into the inside, and this inlet 331 is provided with a cap 33.
2 is installed.

The water for hot water supply in the hot water supply water tank 310 and the water in the cold water tank 330 are connected to a flow rate regulating valve 350 via water supply pipes 340 in contact with each other. The flow rate adjustment valve 350 adjusts the outflow of the hot water supply water supplied from the hot water supply water tank 310 and the water supplied from the cold water tank 330 to adjust the temperature of the water supplied to the faucet 301 and the shower head 302. It is something.

Water whose temperature has been adjusted by the flow rate adjustment valve 350 is supplied to the faucet 301 and the shower head 302 via the water supply piping 340 by operation of the water pump 360.

In addition, a sealing member (not shown) is installed in the portion of the heating water tank 210 through which the water supply pipe 311 and the water supply pipe 340 pass through to prevent the heating water in the heating water tank 210 and the internal pressure from leaking to the outside. It is sealed.

Next, the operation of the above embodiment will be explained.

When operating the heating device 200 or only the hot water supply device 300, the water pump 230 and preheating heater 240 of the hot water heating device 200 are operated by the operation of a control device (not shown).

Then, due to the operation of the water pump 230, the heating water in the heating water tank 210 is supplied to the water pump 2.
301 The cycle of returning to the heating water tank 210 via the preheating type heater 240, the supply path 250 or the bypass path 260 is repeated.

At this time, since the preheating type heater 240 burns kerosene or light oil, etc., the heating water passing through the preheating type heater 240 is heated by exchanging heat with the combustion gas in a heat exchange part (not shown) of the preheating type heater 240. be done. The heating water heated by the preheating heater 240 is transferred to the heating water tank 21.
Since the heating water returns to 0 and repeats the cycle of being heated again by the preheating type heater 240, the heating water in the heating water tank 210 becomes low.

The preheating type heater 240 is the preheating type heater 24
When the temperature of the heating water flowing into the water temperature sensor 241r reaches a set temperature (for example, 73° C.), combustion is stopped, and when the water temperature drops by a predetermined temperature below the set humidity, combustion is started again. There is.

Thereby, the heating water in the heating water tank 210 is maintained at approximately the set temperature.

When performing heating operation, a control device (not shown)
The supply path m solenoid valves 251 and 252 and the bypass path cutoff solenoid valves 261 and 262 are energized.

Then, as shown in FIG. 3, the upstream and downstream sides of the supply path 250 are opened, and the upstream and downstream sides of the bypass path 260 are closed. Thereby, the heating water heated by the preheating type heater 240 is supplied to the heater core 210 connected to the supply path 250.
280 and heats the driver's cabin 110 and bedroom 130 in which heater cores 270 and 280 are installed.

During heating operation, the heating water in the room water tank 210 is always maintained at almost the set temperature, so the heating water tank 2
The hot water supply water in the hot water supply water tank 310 installed in the hot water supply tank 10 is also maintained at approximately the set temperature at all times.

When water is supplied through the faucet 301 and the shower head 302, the temperature desired by the user is adjusted to the flow rate regulating valve 302.
50 and operates the water pump 360 to supply water to the faucet 301 and the shower head 302.

In addition, when heating is not used, such as during the summer, the water heater 3
00, the control tII device (not shown) operates the water pump 230J5 and the preheating heater 240 as in the case of heating, as well as the supply path cutoff solenoid valves 251 and 252 and the bypass path cutoff solenoid valve 2.
61.262 is de-energized.

As a result, as shown in FIG. 4, the upstream and downstream sides of the supply path 250 are opened, and the upstream and downstream sides of the bypass path 260 are opened. Therefore, the heating water heated by the preheating type heater 240 passes through the bypass passage 260 without flowing into the heater core 270, 280.
．． The heating water in the heating water tank 210 can be heated to approximately the set temperature without heating the driver's cabin 110 and bedroom 130 in which the heating water tank 280 is installed.

As a result, the water for hot water supply in the hot water supply water tank 310 installed in the heating water tank 210 is also maintained at approximately the set temperature at all times.

When water is supplied through the faucet 301 and the shower head 302, the temperature desired by the user is adjusted to the flow rate regulating valve 302.
50 and operates the water pump 360 to supply water to the faucet 301 and shower head 302.

According to this embodiment, when the water heater 300 is operated when heating is not performed, the heater 270.280
Since the driver's cab 110 and the bedroom 130 in which the vehicle is installed are not heated, the occupants are not made to feel uncomfortable due to heating.

According to the present invention, the preheating type heater 2 of the hot water type heating device 200
The water heater 300 uses the heating water heated by the heater 40.
In order to heat the water for hot water supply in the hot water supply water tank 310, it is possible to abolish the heat generating device dedicated to the hot water supply system that has been used in the past. space can be used effectively, and the weight of the ship 100 can be reduced.

In addition, by abolishing the heat generating device exclusively for water heaters,
In addition to the preheating type heater 240, no heat generating device dedicated to the water heater is used during heating operation, so that the amount of energy consumed can be kept low.

Furthermore, when mounting the water heater 300 on the ship 100,
Since there is no need to provide a heat generating device exclusively for the water heater, the cost of mounting the water heater 300 on the ship 100 can be kept low.

FIG. 5 shows a second embodiment of the invention.

In the above embodiment, the hot water tank 310 is installed inside the heating water tank 210 to heat the hot water water in the hot water tank 310. A sub-tank 290 is provided on the body, and a water tank 310 for hot water supply is placed inside the sub-tank 290. Thereby, the heating water passing through the rib tank 290 and the hot water supply water in the hot water supply water tank 310 exchange heat, and the hot water supply water in the hot water supply water tank 310 is heated.

According to this embodiment, the water supply tank 310 and the faucet 301
and water supply piping 3 that connects to the shower head 302
40 can be shortened, and the routing of the water supply piping 340 within the ship 100 can be simplified.

FIG. 6 shows a third embodiment of the invention.

In this embodiment, a circulation path 22 is provided around a water tank 310 for hot water supply.
0, heat is exchanged between the heating water flowing through the circulation path 220 and the hot water supply water in the hot water supply water tank 310, and the hot water supply water in the hot water supply water tank 310 is heated.

(Modification) In the above embodiment, an example was shown in which the entire hot water tank was heated with heating water, but a heat exchanger is installed downstream of the hot water tank to exchange heat between heating water and hot water water. When using dry water at the outlet, water for hot water supply may be heated by passing it through a heat exchanger.

We have shown an example of controlling the water temperature using a flow rate adjustment valve, but we also installed a valve at the outlet to adjust the hot water flow δ and a valve to adjust the cold water flow rate ′A, and the opening degree of each valve was adjusted accordingly. The water temperature may be adjusted by

Although an example has been shown in which hot water is sent to the outlet by the operation of the water pump, for example, a water supply tank may be provided at a position higher than the outlet, and hot water may be sent to the outlet by water pressure.

Although we have shown an example in which a preheating type heater is applied to a heat generating device, it is also possible to use an electric heating type peak as a heat generating device to heat water for heating, or to use a heat generating device for an engine for generating electricity that is not used for ship navigation. The cooling water may be used as heating water.

[Brief explanation of the drawing]

Figure 1 is a schematic side view of the water heater installed on a ship, Figure 2 is a schematic diagram of the ground surface of the water heater installed on the ship, and Figure 3 is the circulation of heating water in the water temperature heating system during heating operation. FIG. 4 is an explanatory diagram showing the circulation path of heating water in the water temperature heating system during heating operation and when heating operation is stopped. FIG. Schematic circuit diagram of a heating device and hot water supply device. Fig. 6 is a schematic circuit diagram of a hot water type heating device and a hot water supply device showing a third embodiment. In the diagram: 100... Ship 200... Hot water heating system 240... Preheating heater 210.280...
Heater core 300...Water supply device 301...Faucet 302...Shower head 310...Water tank for hot water supply 312...Inlet 320...Heat exchange means

Claims (1)

[Scope of Claims] 1) (a) A hot water type space heater that includes a heat generating device that heats water for heating, and a heater core that heats a room by receiving the heating water heated by the heat generating device. (b) an inlet into which water for hot water supply flows; (c) heat for exchanging heat between the water for hot water supply flowing in from the inlet and the water for heating heated by the heat generating device; A water heater for a ship, comprising: an exchange means; and (d) an outlet through which the hot water supply water that has passed through the heat exchange means flows out. 2) The hot water heating device is provided with a bypass path that bypasses the supply path that supplies the heating water to the heater core, and includes electromagnetic valves provided upstream and downstream of the supply path and the bypass path. A water heater for a ship according to claim 1, characterized in that: 3) A patent characterized in that the heat exchange means is composed of a heating water tank that stores the heating water, and a hot water supply water tank installed in the heating water tank that stores the hot water supply water. A water heater for a ship according to claim 1 or 2.