JP2567113Y2 - Solid regenerative steam generator - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid regenerative steam generator using a solid regenerator.

[0002]

2. Description of the Related Art A steam generator is a device which generates steam by heating water and gives moisture to a room atmosphere, and is known as a boiler type, an electric heater type or an electrode type. A boiler-type steam generator burns fuel such as gas or oil to heat water stored in a tank. The electric heater-type steam generator heats water stored in a tank by energizing heat generated by an electric heater. The electrode-type steam generator heats water stored in a tank by the generation of heat between the electrodes.

[0003]

However, the boiler-type steam generator requires special skills in management and has a problem in safety. In addition, electric heater or electrode type steam generators are excellent in safety and management, but most of the power consumed to consume power during use is expensive daytime power. There is a problem. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a solid regenerative steam generator that is economical, safe and easy to manage.

[0004]

In order to achieve the above-mentioned object, a solid regenerative steam generator according to the present invention is provided with a solid regenerator 5 having a ventilation hole 6 penetrating therethrough and a solid regenerator inserted into the ventilation hole 6 for solid heat storage. A heat storage unit 4 having an electric heater 7 that contacts the body 5 and directly heats the heat storage unit, a case 3 in which a ventilation path 8 surrounding the heat storage unit 4 is formed, and a ventilation path 8 in the case A steam generator 2 that generates steam using the air heated by the solid heat storage 5 as a heat source, and a blower 9 that blows the heat stored by the solid heat storage 5 to the steam generator 2 through the air passage 8. The steam generator 2 has a lower header 14 and an upper header 13, and a plurality of branch pipes 15 extending vertically and connecting the lower header 14 and the upper header 13. And store water in the diversion pipe 15 Both heat exchanger 10 which exchanges heat to generate steam between the heated air the pooled water
A water supply unit 11 connected to the atmosphere for supplying water to a lower header 14 of the heat exchange unit 10; and a steam discharge unit 12 connected to the upper header 13 of the heat exchange unit 10 and releasing generated steam to the atmosphere. And a configuration comprising:

[0005]

The solid regenerator 5 is heated by the electric heat generated by the electric heater 7 to store heat in the solid regenerator 5, and the solid regenerator 5 emits heat to heat water to generate steam.
Since the solid regenerator 5 is heated by the electric heater 7 instead of burning the fuel as a heat source, the safety is high and the management is easy. In addition, since the heat is stored in the solid heat storage unit 5 using inexpensive nighttime electric power, and the heat stored in the solid heat storage unit 5 is released during the day and used for generating steam, the electricity rate is low.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. In the figure, 1 is a solid regenerator and 2 is a steam generator. The solid heat storage device 1 will be described. Reference numeral 3 denotes a case formed of a heat insulating material, and reference numeral 4 denotes a heat storage unit provided on the support plate 3a inside the case 3. The heat storage unit 4 is formed by combining a plurality of solid heat storage elements 5, and each solid heat storage element 5 has a ventilation hole 6 formed therein. These solid regenerators 5 are arranged in a row so that the ventilation holes 6 communicate with each other, a plurality of rows of the solid regenerators 5 are arranged in parallel, and a plurality of rows of the solid regenerators 5 are stacked in multiple stages. ing. As a result, a plurality of rows of ventilation holes 6 penetrate through the heat storage unit 4.

In the row of the ventilation holes 6 in the heat storage unit 4, an electric heater 7 composed of a sheathed heater as a heating element is inserted and arranged. The electric heater 7 has a U-shape and is inserted over the entire row of the ventilation holes 6 in the heat storage unit 4 and is in contact with the solid heat storage 5 as shown in FIG. Both ends of the heater 7 project outside from the row of the ventilation holes 6 through the wall of the case 3 and are connected to a power supply device (not shown).

The heat storage unit 4 is provided inside the case 3.
Is formed. This ventilation path 8
, A blower 9 is provided below the heat storage unit 4. The blower 9 blows the heat stored in the solid heat storage unit 5 to the steam generator 2 through the air passage 8 and is connected to a drive circuit (not shown). By driving the blower 9, air circulates through the ventilation passage 8 and the row of the ventilation holes 6.

Next, the steam generator 2 will be described. The steam generator 2 includes a heat exchange unit 10, a water supply unit 11, and a steam discharge unit 12. Heat exchange part 10 is case 3
The heat storage unit 4 is disposed below the heat storage unit 4 in the ventilation passage 8. The heat exchanging section 10 includes a pair of headers 13 and 14 horizontally arranged at an upper portion and a lower portion, and the upper header 1.
It has a plurality of flow dividing pipes 15 vertically arranged between the lower header 3 and the lower header 14 and connected to the respective headers 13 and 14, and fins 16 attached to the respective flow dividing pipes 15.

The water supply section 11 is disposed outside the case 3 as shown in FIG. 2 and has a tank shape which is open to the atmosphere and is connected to the lower header 14 of the heat exchange section 10 at the bottom. . The passage connected to the lower header 14 has a smaller capacity than that of the tank-shaped portion.

A check valve 17 is provided in a passage connected to the lower header 14. This check valve 17 is used for the lower header 1
This prevents the backflow of water from 4 to the water supply unit 11. The check valve 17 is displaced by a spring (not shown) so as to allow the flow of water from the water supply unit 11 to the lower header 14 to open a valve seat.

The steam discharge section 12 is disposed outside the case 3 as shown in FIG. 2, and is connected to the upper header 13 of the heat exchange section 10. The steam discharge section 12 is provided with a steam outlet that opens upward to discharge generated steam into the atmosphere.

The operation of the steam generator configured as described above will be described. The operation of the solid-state heat storage device 1 will be described. Each of the electric heaters 7 provided in the row of the ventilation holes 6 of each of the solid heat storage units 5 in the heat storage unit 4 is energized. This energization causes the electric heater 7 to generate heat, and the heat heats each solid regenerator 5. Each solid heat storage element 5 is heated at a predetermined temperature for a predetermined time so that each solid heat storage element 5 can store heat at a required temperature. Each of the heated solid regenerators 5 stores heat of the electric heater 7.

When the blower 9 is driven to rotate, the air inside the case 3 is ventilated by the air passage 8 surrounding the heat storage unit 4 and the ventilation holes 6 of the solid heat storage 5 in the heat storage unit 4.
Circulate through the passage connecting When the air flows through the row of the ventilation holes 6 of each solid heat storage element 5, the heat accumulated in each solid heat storage element 5 is released, and the air is heated to increase the temperature. The air heated by each solid regenerator 5 and raised in temperature to become hot air flows through the ventilation passage 8 and comes into contact with each of the branch pipes 15 of the heat exchanger 10 in the steam generator 2 provided inside the case 3. I do.

The operation of the steam generator 2 will be described. Water H is charged and stored in the tank portion of the water supply unit 11. Water supply unit 1
1 enters the lower header 14 of the heat exchange section 10 through the passage through the check valve 17 and further flows into the respective branch pipes 15.
Divided into the inflow. Since the tank portion of the water supply section 11 is communicated with the atmosphere, the water in the tank section is pushed at atmospheric pressure and flows to the heat exchange section 10. The level of water H is the upper header 13
Below. Water in each of the branch pipes 15 of the heat exchange unit 10 is heated by being exchanged with heated air flowing through the ventilation passage 8. The water H is heated to the boiling point and evaporates to vapor. The steam flows from the upper header 13 to the steam discharging section 12 and is discharged from the steam outlet to the outside.

The steam is transferred from the branch pipe 15 to the lower header 14.
The check valve 17 is closed to prevent the water from flowing back to the water supply section 11 through the water supply section 11 to prevent this. For this reason, there is no backflow of steam and it is safe.

In this steam generator, the solid regenerator 5 is heated by the electric heater 7 instead of burning the fuel as a heat source, so that the safety is high and the management is easy. Moreover,
By using inexpensive nighttime electric power to store heat in the solid thermal storage body 5 and releasing the heat stored in the solid thermal storage body 5 in the daytime and using it for steam generation, the electricity rate is low. In addition, this invention is not limited to the said Example, It is possible to implement in various deformation | transformation.

[0018]

As described above, according to the solid regenerative steam generator of the present invention, since the regenerator unit 4 uses the electric heater 7 and the solid regenerator 5 as a heat source in combination, it is economical and safe. Excellent in management and easy to manage.

In the heat storage unit 4, the electric heater 7 contacts the solid heat storage 5 and is inserted into the ventilation hole 6, and the electric heater 7 directly heats the solid heat storage 5 to store heat. The solid heat storage 5 is separately provided, and the air heated by the electric heater is sent to the solid heat storage by the fan, and the heat of the electric heater is transferred to the solid heat storage as in the case of heating the solid heat storage with the heated air. There is no need to provide any special equipment such as a fan to convey the information, and in this regard, it is economical and easy to manage.

Further, the steam generator is extended vertically with the lower header 14 and the upper header 13 so as to form the lower header 1.
And a plurality of diverting pipes 15 connecting the upper and lower headers 4 to each other. When water is stored in at least the lower header 14 and the diverting pipe 15, the stored water exchanges heat with heated air to produce steam. A heat exchange section 10 for generating water, a water supply section 11 connected to the atmosphere for supplying water to a lower header 14 of the heat exchange section, and a steam connected to the upper header 13 of the heat exchange section 10 to release generated steam to the atmosphere. And a vapor discharge unit 12 for performing the operation.

For this reason, when generating steam in the heat exchange section 10, there is no need to manage the pressure as in the case of generating steam inside the pressure tank, and the configuration of the heat exchange section 10 is simple and It is easy to manage in generating steam and high in safety.

The heat exchange section 10 is composed of the lower header 14 and the upper header 13 and a plurality of branch pipes 15 extending along the vertical direction and connecting the lower header 14 and the upper header 13. The steam generated in the heat exchanging unit 10 can be quickly released from the steam discharging unit 12 into the atmosphere, and the safety in generating the steam is high.

Further, since the water supply unit 11 is communicated with the atmosphere, the structure of the water supply unit 11 is simple,
When the water in the heat exchange unit 10 is consumed and reduced by the generation of steam, the water can be quickly supplied to the heat exchange unit 10 by the atmospheric pressure.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a steam generator according to an embodiment of the present invention.

FIG. 2 is a sectional view as seen from a direction A in FIG. 1;

FIG. 3 is a sectional view as viewed from a direction B in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Solid regenerator, 2 ... Steam generator, 3 ... Case, 4 ... Regenerator unit, 5 ... Solid regenerator, 6 ... Ventilation hole, 7 ... Electric heater, 8 ... Ventilation path, 9 ... Blower, 10 ... Heat Exchange section, 11: water supply section, 12: steam discharge section.

Claims (1)

(57) [Scope of request for utility model registration] 1. A heat storage unit 4 having a solid heat storage element 5 having a ventilation hole 6 penetrated therein and an electric heater 7 inserted into the ventilation hole 6 to contact the solid heat storage element 5 and directly heat the heat storage element.
A case 3 in which an air passage 8 surrounding the heat storage unit 4 is formed, and a steam that is provided in the air passage 8 in the case and generates steam using the air heated by the solid heat storage 5 as a heat source. The generator 2 and a blower 9 for sending heat stored in the solid heat storage unit 5 to the steam generator 2 through the air passage 8.
And the steam generator 2 extends vertically with the lower header 14 and the upper header 13 so that the lower header 14
And a plurality of flow dividing pipes 15 connecting the upper and lower headers 13. Water is stored in at least the lower header 14 and the flow dividing pipe 15, and heat is exchanged between the stored water and the heated air to generate steam. Heat exchanging unit 10 and the heat exchanging unit 1
A water supply section 11 connected to the atmosphere for supplying water to the lower header 14 of the heat exchanger 10, and a steam discharge section 12 connected to the upper header 13 of the heat exchange section 10 to release generated steam into the atmosphere. A solid regenerative steam generator characterized by being performed.