JPH0571603U - Solid heat storage type steam generator - Google Patents

Abstract

(57) [Summary] [Object] The present invention aims to provide a solid heat storage type steam generator which is excellent in economy and safety and easy to manage. [Structure] A solid regenerator 1 that heats a solid regenerator 5 by a sheath heater 7 to store the heat, and heats air by releasing heat from this solid regenerator, and air heated by the solid regenerator as a heat source. A steam generator 2 for generating steam is provided, and the steam generator is provided in a ventilation passage through which air heated by the solid-state heat storage device flows, and when water is stored, it is heated by the stored water and air. A heat exchange section 10 for generating steam, a water supply section 11 for supplying water to the heat exchange section, a steam discharge section 12 connected to the heat exchange section, and a check valve 1 provided in the water supply section.
7 and 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an atmospheric pressureless steam generator using a solid-state heat storage device.

[0002]

[Prior Art]

 A steam generator is a device that heats water to generate steam, and humidifies the atmosphere in the room. Steam generators include boiler type, electric heater type and electrode type.

A boiler-type steam generator burns fuel such as gas or petroleum to heat water stored in a tank. The electric heater-type steam generator heats water stored in a tank by generating heat by energizing an electric heater. The electrode-type steam generator heats the water stored in the tank by the heat generated when electricity is passed between the electrodes.

[0004]

[Problems to be solved by the device]

 However, the boiler-type steam generator requires special skill in terms of management and has a problem in safety. In addition, the electric heater type or electrode type steam generator is excellent in safety and management, but the amount of electric power consumed to consume the electric power during use is extremely expensive during the daytime. There is a problem in economics. The present invention has been made based on the above circumstances, and an object of the present invention is to provide a solid-state heat storage type steam generator which is excellent in economy and safety and which can be easily managed.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the solid regenerator type steam generator of the present invention comprises a solid regenerator that heats a solid regenerator with a heating element to store heat, and heats air by releasing heat from the solid regenerator. A steam generator that generates steam by using the air heated by the solid-state heat storage as a heat source, and the steam generator is provided in a ventilation path through which the air heated by the solid-state heat storage flows. Connected to the heat exchange part, a heat exchange part that generates steam by heating with the stored water and the air, and a water supply part open to the atmosphere for supplying water to the heat exchange part. It has a steam discharge part and a check valve provided in the water supply part.

[0006]

[Action]

 The solid heat storage body is heated by the electric heat generated by the electric heater, the heat is accumulated in the solid heat storage body, and the heat is released from the solid heat storage body to heat the water to generate steam.

Since the solid heat storage body is heated by the electric heater instead of burning the fuel to use it as a heat source, the safety is high and the management is easy. In addition, the electricity cost is low by using the cheap nighttime electricity to store the heat in the solid heat storage body and releasing the heat accumulated in the solid heat storage body during the daytime for steam generation.

[0008]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. In the figure, 1 is a solid heat storage device, and 2 is a steam generator.

The solid regenerator 1 will be described. Reference numeral 3 is a case formed of a heat insulating material, and 4 is a heat storage unit mounted on the support plate 3a inside the case 2. The heat storage unit 4 is configured by combining a plurality of solid heat storage bodies 5, and each solid heat storage body 5 has an air passage 6 formed therein. These solid heat storage bodies 5 are arranged in a line so that the ventilation passages 6 communicate with each other, a plurality of rows of the solid heat storage bodies 5 are arranged in parallel, and a plurality of rows of the solid heat storage bodies 5 are stacked in a plurality of stages. ing. Thereby, a plurality of rows of ventilation paths 6 are formed in the heat storage unit 4.

A sheathed heater 7, which is a heating element, is inserted in each row of the ventilation paths 6 in the heat storage unit 4. The sheathed heater 7 has a U-shaped shape, and is inserted and arranged over the entire row of the ventilation passages 5 in the unit 6. Both ends of the sheathed heater 7 are projected outside from the row of the ventilation passages 5 through the wall portion of the case 1 and are connected to a power supply device (not shown).

An air passage 8 that surrounds the periphery of the heat storage unit 2 is formed inside the device case 1. A blower 9 is installed below the heat storage unit 4 in the air passage 8. The blower 9 is connected to a drive circuit (not shown). By driving the blower 10, the air circulates in the ventilation passages 9 and the rows of the ventilation passages 5 of the units 6. 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.

The heat exchange section 10 is provided below the heat storage unit 4 in the ventilation passage 9 of the solid heat storage unit 1. The heat exchange unit 10 includes a pair of headers 13 and 14 arranged horizontally at an upper portion and a lower portion and a plurality of headers 13 and 14 arranged vertically between the pair of headers 13 and 14 and connected to the headers 13 and 14, respectively. The diversion pipes 15 and the fins 16 attached to the diversion pipes 15 are provided.

The water supply unit 11 is arranged outside the solid regenerator 1 and has a tank shape that is open to the atmosphere, and has a bottom connected to the header 14 below the heat exchange unit 10. The passage connected to the header 14 has a smaller capacity than the tank-shaped portion.

A check valve 17 is provided in the passage connected to the header 14. The check valve 17 prevents backflow of water from the header 14 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 section 11 to the header 14, and the valve seat is opened.

The steam generating unit 11 is arranged outside the solid heat storage unit 1 and is connected to the header 13 above the heat exchanging unit 10. The steam generator 11 has a steam outlet that is open upward. The operation of the steam generator thus configured will be described.

The operation of the solid-state heat storage device 1 will be described. Electric power is supplied to each sheath heater 7 provided in each row of the ventilation paths 5 of each solid heat storage body 4 in the heat storage body unit 2. This energization causes the sheath heater 7 to generate heat, and the heat is radiated to heat each solid heat storage body 4. Each solid heat storage body 4 is heated at a predetermined temperature for a predetermined time so that each solid heat storage body 4 can store heat at a required temperature. Each heated solid heat storage body 4 stores the radiant heat of the sheathed heater 7.

When the blower 11 is rotationally driven, the air inside the case 1 connects the air passage 9 surrounding the heat storage unit 2 and the air passage 5 of each solid heat storage body 4 in the heat storage unit 2. Circulate. When the air flows through the row of the ventilation passages 5 of each solid heat storage body 4, the heat accumulated in each solid heat storage body 4 is released, the air is heated, and the temperature rises. The air that has been heated by each solid heat storage body 4 and has risen in temperature to become warm air flows through the ventilation passage 9 and each branch pipe 15 of the heat exchange section 10 in the steam generator 2 provided inside the case 1 Contact. The operation of the steam generator 2 will be described.

Water H is put and stored in the tank portion of the water supply unit 11. The water put in the water supply unit 11 passes through the passage, enters the header 14 at the lower part of the heat exchange unit 10 via the check valve 17, and further flows into the flow dividing pipes 15 separately. Since the tank part of the water supply part 11 is open to the atmosphere, the water in the tank part is pushed by the atmospheric pressure and flows into the heat exchange part 10. The water level of the water H is below the upper header 13. The water in each of the flow dividing pipes 15 of the heat exchange section 10 is heated by being heat-exchanged with the heated air flowing through the ventilation passage 9. The water H is heated to the boiling point and evaporated to become steam. This steam flows from the upper header 13 to the steam discharge part 12, and is discharged to the outside from the steam port. When this steam tries to flow back from the flow dividing pipe 15 to the water supply section through the header 14, the check valve 17 closes to prevent this, and therefore there is no backflow of steam and it is safe.

Since this steam generator heats the solid heat storage body 5 with the sheath heater instead of burning the fuel to use it as a heat source, it is highly safe and easy to manage. Moreover, the electricity charge is low by storing heat in the solid heat storage body 5 using inexpensive nighttime electric power and releasing the heat accumulated in the solid heat storage body 5 in the daytime to use for steam generation. It should be noted that the present invention is not limited to the above-mentioned embodiment, and various modifications can be carried out.

[0020]

[Effect of the device]

 As described above, according to the present invention, it is possible to obtain a solid-state heat storage type steam generator which is excellent in economy and safety and which can be easily managed.

[Brief description of 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 seen from the direction A in FIG.

FIG. 3 is a cross-sectional view seen from the direction B in FIG.

[Explanation of symbols]

1 ... Solid heat storage device, 2 ... Steam generator, 5 ... Solid heat storage device, 1
0 ... Heat exchange part, 11 ... Water supply part, 13 ... Steam discharge part.

Claims (1)

[Scope of utility model registration request] 1. A solid heat storage element is heated by a heating element to store heat,
The solid regenerator that heats air by releasing heat from the solid regenerator, and the steam generator that generates steam by using the air heated by the solid regenerator as a heat source. A heat exchange section that is provided in a ventilation path for flowing the air heated by the heat storage unit and that stores water and also exchanges heat between the stored water and the heated air to convert it into steam, and this heat exchange A solid heat storage type steam generator having a water supply section open to the atmosphere for supplying water to the section, a steam discharge section connected to the heat exchange section, and a check valve provided in the water supply section.