Heat storage steam supply device

Abstract

The utility model discloses a heat storage steam supply device which comprises a heat storage tank, a heat storage working medium and a heating device are arranged in the heat storage tank, the heat storage steam supply device further comprises a heat exchange coil pipe matched with the heat storage working medium in a heat exchange mode, a water supply inlet pipeline and a steam outlet pipeline are arranged on the side wall of the heat storage tank, and the lower end of the heat exchange coil pipe is connected to the water supply inlet pipeline in a penetrating mode. The upper end of the heat exchange coil pipe is connected to the steam outlet pipeline in a penetrating mode, the water supply inlet pipeline is provided with a blow-off branch pipe, the blow-off branch pipe is communicated with the heat exchange coil pipe through the water supply inlet pipeline, and the blow-off branch pipe is provided with a blow-off device used for controlling the blow-off branch pipe to be opened and closed. The blow-down device can be a manual blow-down valve or an automatic blow-down valve or a combination of the manual blow-down valve and the automatic blow-down valve. High-concentration boiler water in the heat exchange coil pipe is discharged through the blowdown device, accumulation of pollutants such as scale in the heat exchange coil pipe is reduced, the heat exchange coil pipe is kept clean, and efficient heat transfer is guaranteed; and meanwhile, equipment faults caused by pollutant accumulation are reduced, and the operation stability of the system is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heat storage and steam supply, particularly relates to a heat storage and steam supply device. BACKGROUND

[0002] There are various occasions requiring steam in industry. At present, the main energy source for small-scale steam demand is electricity, that is, water is heated by an electric heater to increase the temperature of the water, and then steam is generated. The direct use of electric heating water to generate steam has the advantage of rapid steam generation, but due to the high peak electricity price, the operation cost of the device for directly using electric heating water to generate steam during the day is very high. Therefore, heat storage technology is usually used to store heat at night and release heat during the day to reduce the operation cost of the steam supply device.

[0003] The heat storage and steam supply technology mainly stores heat through the heat storage medium in the storage tank, transfers the heat of the heat storage medium to water through the heat exchange coil, and then converts the water into steam. For example, a molten salt heat storage and steam supply system and a steam supply method disclosed in Chinese patent application (publication number: CN114857974A) include a storage tank for storing molten salt, a heat exchange device, and a feedwater device. The uppermost heat exchange coil of the outer side wall of the storage tank has a steam outlet. The feedwater device supplies water to the heat exchange device, the molten salt in the storage tank supplies heat to the heat exchange device, and the heat exchange device heats the water into steam.

[0004] However, the molten salt heat storage and steam supply system and the steam supply method disclosed in the above-mentioned prior art have the defect that the blowdown of the heat exchange coil is not fully considered. Specifically, during the operation of the equipment, the soluble and insoluble impurities contained in the water will gradually concentrate and remain inside the heat exchange coil, thereby forming scale and other pollutants. These pollutants not only have a negative impact on the normal and stable operation of the equipment, reducing the heat transfer efficiency of the equipment, but also may even cause equipment failure in severe cases. With the passage of time, scale accumulates in the heat exchange coil, making subsequent equipment maintenance much more difficult and significantly increasing maintenance costs.

[0005] Therefore, it is necessary to improve the prior art. UTILITY MODEL CONTENTS

[0006] The utility model aims at the defects and deficiencies of the prior art, and provides a heat storage and steam supply device, which integrates a blowdown branch pipe and a blowdown device, can automatically / manually empty the high-concentration boiler water remaining in the heat exchange coil periodically or as needed, ensures continuous and efficient operation of the system, and reduces maintenance costs.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0008] The utility model provides a heat storage steam supply device, including heat storage tank, be provided with heat storage working medium and heating device in the heat storage tank, the heating device is used for heating the heat storage working medium, still include the heat exchange coil with the heat exchange cooperation of heat storage working medium, the lateral wall of heat storage tank is provided with water inlet pipe and steam outlet pipe, the lower end of heat exchange coil is connected to water inlet pipe, the upper end of heat exchange coil is connected to steam outlet pipe, water inlet pipe is provided with blowdown branch pipe, blowdown branch pipe communicates with heat exchange coil through water inlet pipe, and blowdown branch pipe is provided with blowdown device for controlling the opening and closing of blowdown branch pipe.

[0009] Further, the blowdown device is a manual blowdown valve or an automatic blowdown valve.

[0010] Further, the blowdown device includes a manual blowdown valve and an automatic blowdown valve, and the manual blowdown valve and the automatic blowdown valve are connected in parallel to the blowdown branch pipe.

[0011] Further, the blowdown device includes a manual blowdown valve and an automatic blowdown valve, and the manual blowdown valve and the automatic blowdown valve are connected in series to the blowdown branch pipe, and a water outlet end of the manual blowdown valve is connected to a water inlet end of the automatic blowdown valve.

[0012] Further, the blowdown branch pipe includes a first blowdown branch pipe and a second blowdown branch pipe connected in parallel, the blowdown device includes a first manual blowdown valve and an automatic blowdown valve connected in series to the first blowdown branch pipe, and a water outlet end of the first manual blowdown valve is connected to a water inlet end of the automatic blowdown valve, and the blowdown device further includes a second manual blowdown valve arranged in the second blowdown branch pipe.

[0013] Further, the automatic blowdown valve is an electromagnetic valve or an electrically or pneumatically controlled valve.

[0014] Further, the heat exchange coil is arranged in a spiral shape from top to bottom in the heat storage tank.

[0015] Further, the heat exchange coil is arranged in a spiral shape from top to bottom and attached to an inner wall or an outer wall of the heat storage tank.

[0016] Further, the heat storage working medium is a phase change heat storage working medium.

[0017] Further, the heat storage working medium is a molten salt, a heat conducting oil, or a solid heat storage material.

[0018] After the above structure is adopted, the utility model has the beneficial effects that:

[0019] The utility model relates to a heat storage steam supply device, including heat storage jar, be provided with heating device and heat exchange coil in the heat storage jar, the heat storage jar is also filled with heat storage working medium, heating device is used for heating heat storage working medium, heat exchange coil with heat storage working medium heat exchange cooperation, the lateral wall of heat storage jar is provided with water inlet pipeline and steam outlet pipeline, the lower extreme of heat exchange coil is connected to water inlet pipeline through, the upper extreme of heat exchange coil is connected to steam outlet pipeline through, water inlet pipeline is provided with blow-off branch pipe, blow-off branch pipe communicates with heat exchange coil through water inlet pipeline, be provided with the blow-off device for controlling the opening and closing of blow-off branch pipe on blow-off branch pipe. The utility model integrates blow-off branch pipe and blow-off device, and the blow-off device can be a manual blow-off valve, can also be an automatic blow-off valve, or it is the combination form of both, can empty the high concentration pot water remaining in heat exchange coil periodically or according to the needs automatically / manually through blow-off device, effectively reduces the accumulation of scale and other pollutants in heat exchange coil, keeps the cleanness of heat exchange coil, to guarantee the efficient heat transfer, improve the thermal efficiency of overall system, simultaneously, reduces the equipment failure due to the accumulation of pollutants, prolongs the service life of equipment, guarantees the continuity of production, reduces the maintenance cost of equipment, improves the operation stability and reliability of whole system. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the embodiment of the utility model, the drawings needed in the following specific embodiment description will be briefly introduced, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating labor.

[0021] Figure 1 It is the overall structure schematic diagram of the embodiment one of the utility model;

[0022] Figure 2 It is the overall structure schematic diagram of the embodiment two of the utility model;

[0023] Figure 3 It is the overall structure schematic diagram of the embodiment three of the utility model;

[0024] Figure 4 It is the overall structure schematic diagram of the embodiment four of the utility model;

[0025] Figure 5 It is the overall structure schematic diagram of the embodiment five of the utility model.

[0026] Figures 1 to 5 Reference numerals are:

[0027] 1, heat storage tank; 11, feed water inlet pipe; 12, steam outlet pipe; 2, heating device; 3, heat exchange coil; 4, blow-off branch pipe; 41, first blow-off branch pipe; 42, second blow-off branch pipe; 5, manual blow-off valve; 51, first manual blow-off valve; 52, second manual blow-off valve; 6, automatic blow-off valve; 7, temperature sensor; 8, heat insulation layer. DETAILED DESCRIPTION

[0028] In order to make the above objectives, characteristics and advantages of the present application more apparent, concrete embodiments of the present application will be described in detail below with reference to the drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways other than those described herein without departing from the spirit of the present application, and it will be apparent to those skilled in the art that the present application can be practiced with or without these specific details. Therefore, the present application is not limited to the following disclosed embodiments.

[0029] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of the term "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0031] In the present application, unless otherwise specifically defined and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In the present application, unless otherwise explicitly specified and limited, if there is a description such as "on" or "under" between the first feature and the second feature, it means that the first feature and the second feature are in direct contact, or the first feature and the second feature are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0033] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are for illustrative purposes only and do not indicate the only implementation.

[0034] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0035] Embodiment one

[0036] As shown in Figure 1 A heat storage and steam supply device, comprising a heat storage tank 1, a heat storage working medium and a heating device 2 are arranged in the heat storage tank 1, the heating device 2 is used for heating the heat storage working medium, further comprising a heat exchange coil 3 matched with the heat storage working medium for heat exchange, the side wall of the heat storage tank 1 is provided with a feed water inlet pipe 11 and a steam outlet pipe 12, the lower end of the heat exchange coil 3 is connected to the feed water inlet pipe 11 in a through manner, the upper end of the heat exchange coil 3 is connected to the steam outlet pipe 12 in a through manner, the feed water inlet pipe 11 is provided with a blow-off branch pipe 4, the blow-off branch pipe 4 is communicated with the heat exchange coil 3 through the feed water inlet pipe 11, and the blow-off branch pipe 4 is provided with a blow-off device for controlling the opening and closing of the blow-off branch pipe 4. The blow-off device is a manual blow-off valve 5.

[0037] Based on the above embodiment, the utility model wants to solve is provide a heat storage steam supply device, including heat storage tank 1, the heat storage tank 1 is provided with heat storage working medium and heating device 2, the heating device 2 is used for heating the heat storage working medium, still include with the heat exchange cooperation of heat storage working medium heat exchange coil 3, the lateral wall of heat storage tank 1 is provided with feed water inlet pipeline 11 and steam outlet pipeline 12, the lower end of heat exchange coil 3 is connected to feed water inlet pipeline 11 through, the upper end of heat exchange coil 3 is connected to steam outlet pipeline 12 through, feed water inlet pipeline 11 is provided with blow-off branch pipe 4, blow-off branch pipe 4 is communicated with heat exchange coil 3 by feed water inlet pipeline 11, blow-off branch pipe 4 is provided with blow-off device for controlling the opening and closing of blow-off branch pipe 4. The blow-off device is manual blow-off valve 5. The utility model integrates blow-off branch pipe 4 and manual blow-off valve 5, and manual blow-off valve 5 can realize manual periodic blow-off, so as to discharge the high-concentration boiler water remaining in heat exchange coil 3, effectively reduce the accumulation of scale and other pollutants in heat exchange coil 3, keep heat exchange coil 3 clean, ensure efficient heat transfer, improve the thermal efficiency of the overall system, and reduce the equipment failure caused by the accumulation of pollutants, prolong the service life of the equipment, ensure the continuity of production, reduce the maintenance cost of the equipment, and improve the operation stability and reliability of the whole system.

[0038] As another preferred embodiment of the utility model, the heat storage working medium is a phase change heat storage working medium. The heating device 2 is an electric heating rod, and a plurality of electric heating rods are uniformly arranged in the heat storage tank 1 to uniformly heat the phase change heat storage working medium. In other preferred embodiments, the heat storage working medium can also be molten salt or heat-conducting oil or solid heat storage material.

[0039] As another preferred embodiment of the utility model, the heat exchange coil 3 is arranged in the heat storage tank 1 in a spiral shape from top to bottom. In this embodiment, as shown in the figure, Figure 1As shown, considering that there is a temperature difference between the upper end and the lower end inside the heat storage tank 1 during actual use, generally, the temperature of the lower end of the heat storage tank 1 is lower than that of the upper end, in order to make the structure design more reasonable, the lower end of the heat exchange coil 3 is connected to the water inlet pipeline 11, and the upper end of the heat exchange coil 3 is connected to the steam outlet pipeline 12, the water flows into the spiral heat exchange coil 3 through the water inlet pipeline 11, and is directly converted into steam by heat exchange with the heat storage working medium in the heat exchange coil 3, and the steam rises along the heat exchange coil 3 and is discharged from the steam outlet pipeline 12. In this embodiment, the heat exchange coil 3 is spirally arranged in the heat storage tank 1 from top to bottom, so that the heat exchange coil 3 can better exchange heat with the heat storage working medium. In a further preferred embodiment, the heat exchange coil 3 is spirally arranged on the inner wall of the heat storage tank 1. In other preferred embodiments, the heat exchange coil 3 is spirally arranged on the outer wall of the heat storage tank 1. This structure design enables the heat exchange coil 3 to exchange heat with the heat storage working medium through the tank wall of the heat storage tank 1, and also avoids pollution of the heat storage working medium due to damage of the heat exchange coil 3, and facilitates maintenance and replacement of the heat exchange coil 3.

[0040] As another preferred embodiment of the present application, a temperature sensor 7 is arranged in the heat storage tank 1, the detection end of the temperature sensor 7 extends into the heat storage working medium, and the temperature sensor 7 is signal connected with the control system. In this embodiment, as shown in the figure, Figure 1 The temperature sensor 7 is used to detect the temperature of the heat storage working medium in the heat storage tank 1, and feed back the detected temperature data to the control system, and the control system issues corresponding control commands according to the temperature data. Specifically, during the valley electricity period, the heating device 2 is started to heat the heat storage working medium in the heat storage tank 1, and when the temperature sensor 7 in the heat storage tank 1 detects that the temperature reaches a set value (for example, 400℃), the control system controls the heating device 2 to stop heating; during the peak electricity period, the external water source continuously adds water into the water inlet pipeline 11, and when the water flows through the heat exchange coil 3, it absorbs the heat of the heat storage working medium to produce steam, and then the steam is discharged through the steam outlet pipeline 12. When the temperature sensor 7 in the heat storage tank 1 detects that the temperature is lower than the set value (for example, 200℃), at this time, the external water source is stopped; the manual blowdown valve 5 is opened to discharge the high-concentration boiler water remaining in the heat exchange coil 3, and after the water in the heat exchange coil 3 is completely discharged, the manual blowdown valve 5 is closed.

[0041] As another preferred embodiment of the present application, the outer wall of the heat storage tank 1 is covered with a heat preservation layer 8. In this embodiment, as shown in the figure, Figure 1 The heat preservation layer 8 is used to reduce the heat loss of the heat storage tank 1. In a further preferred embodiment, the heat preservation layer 8 is made of one or more of aerogel, aluminum silicate cotton and rock wool.

[0042] Example 2

[0043] This embodiment provides a thermal storage and steam supply device, whose main structure and related principles are the same as those in Embodiment 1, except that:

[0044] The sewage discharge device is an automatic sewage discharge valve 6. The automatic sewage discharge valve 6 is a solenoid valve, an electrically controlled valve, or a pneumatically controlled valve.

[0045] In this embodiment, as Figure 2 As shown, the automatic drain valve 6 enables periodic automatic drainage without the need for dedicated personnel, reducing labor costs. Specifically, when the temperature sensor 7 inside the heat storage tank 1 detects a temperature below a set value (e.g., 200°C), the external water supply is stopped. The temperature sensor 7 feeds back the detected temperature data to the control system, which automatically opens the automatic drain valve 6 to drain the high-concentration boiler water remaining inside the heat exchange coil 3. Once the water inside the heat exchange coil 3 is completely drained, the control system automatically closes the automatic drain valve 6. In this embodiment, the automatic drain valve 6 can also be opened periodically by the control system to periodically drain the high-concentration boiler water from the heat exchange coil 3.

[0046] Example 3

[0047] This embodiment provides a thermal storage and steam supply device, whose main structure and related principles are the same as those in Embodiment 1, except that:

[0048] The sewage discharge device includes a manual sewage discharge valve 5 and an automatic sewage discharge valve 6, which are connected in parallel to the sewage discharge branch pipe 4.

[0049] In this embodiment, as Figure 3 As shown, the automatic drain valve 6 is the main drain valve, and the manual drain valve 5 is the backup drain valve. The parallel combination of the automatic drain valve 6 and the manual drain valve 5 improves the reliability of the draining device. Specifically, when the temperature sensor 7 in the heat storage tank 1 detects a temperature lower than a set value (e.g., 200℃), the external water supply is stopped. The temperature sensor 7 feeds back the detected temperature data to the control system, which automatically opens the automatic drain valve 6 to drain the high-concentration boiler water remaining inside the heat exchange coil 3. After the water inside the heat exchange coil 3 is completely drained, the control system automatically closes the automatic drain valve 6. At this time, the manual drain valve 5, as the backup drain valve, remains closed. When the automatic drain valve 6 malfunctions, the manual drain valve 5 is manually opened to drain the high-concentration boiler water remaining inside the heat exchange coil 3. After the water inside the heat exchange coil 3 is completely drained, the manual drain valve 5 is manually closed.

[0050] Example 4

[0051] The embodiment provides a heat storage steam supply device, the main structure and related principles of which are the same as those of the first embodiment, and the difference lies in that:

[0052] The blow-off device comprises a manual blow-off valve 5 and an automatic blow-off valve 6, the manual blow-off valve 5 and the automatic blow-off valve 6 are connected in series in the blow-off branch pipe 4, and the water outlet end of the manual blow-off valve 5 is connected to the water inlet end of the automatic blow-off valve 6.

[0053] In the embodiment, as shown in the figure, Figure 4 when the automatic blow-off valve 6 works normally, the manual blow-off valve 5 is in an open state; when the automatic blow-off valve 6 fails, the manual blow-off valve 5 is closed, at this time, the automatic blow-off valve 6 can be replaced or repaired, that is, the automatic blow-off valve 6 can be replaced or repaired in a state that the equipment does not stop, and the system operation rate is improved.

[0054] Embodiment five

[0055] The embodiment provides a heat storage steam supply device, the main structure and related principles of which are the same as those of the first embodiment, and the difference lies in that:

[0056] The blow-off branch pipe 4 comprises a first blow-off branch pipe 41 and a second blow-off branch pipe 42 which are connected in parallel, the blow-off device comprises a first manual blow-off valve 51 and an automatic blow-off valve 6 which are connected in series in the first blow-off branch pipe 41, the water outlet end of the first manual blow-off valve 51 is connected to the water inlet end of the automatic blow-off valve 6, and the blow-off device further comprises a second manual blow-off valve 52 which is arranged in the second blow-off branch pipe 42.

[0057] In the embodiment, as shown in the figure, Figure 5 the automatic blow-off valve 6, the first manual blow-off valve 51 and the second manual blow-off valve 52 form a redundant system, the automatic blow-off valve 6 arranged in the first blow-off branch pipe 41 can be replaced or repaired in a state that the second blow-off branch pipe 42 is used for blow-off. Specifically, when the automatic blow-off valve 6 works normally, the first manual blow-off valve 51 is in an open state, and the second manual blow-off valve 52 is in a closed state; when the automatic blow-off valve 6 fails, the first manual blow-off valve 51 is manually closed, and the second manual blow-off valve 52 is manually opened, high-concentration boiler water remaining in the heat exchange coil 3 is discharged, after the water in the heat exchange coil 3 is completely discharged, the second manual blow-off valve 52 is manually closed; meanwhile, the automatic blow-off valve 6 can be repaired or replaced, that is, the automatic blow-off valve 6 can be replaced or repaired in a state that the second blow-off branch pipe 42 is used for blow-off.

[0058] Obviously, the above embodiments are merely exemplary and not limiting. Based on the above description, those skilled in the art can make other different forms of changes or modifications. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or modifications derived therefrom are still within the protection scope of the present application.

Claims

1. A heat storage steam supply device, comprising a heat storage tank (1) in which a heat storage working medium and a heating device (2) for heating the heat storage working medium are arranged, and a heat exchange coil (3) in heat exchange cooperation with the heat storage working medium, a feed water inlet pipe (11) and a steam outlet pipe (12) are arranged on the side wall of the heat storage tank (1), the lower end of the heat exchange coil (3) is connected to the feed water inlet pipe (11) in a penetrating manner, and the upper end of the heat exchange coil (3) is connected to the steam outlet pipe (12) in a penetrating manner, characterized in that: The water inlet pipe (11) is provided with a blow-off branch pipe (4) which is communicated with the heat exchange coil (3) through the water inlet pipe (11), and the blow-off branch pipe (4) is provided with a blow-off device for controlling the opening and closing of the blow-off branch pipe (4).

2. The heat storage steam supply apparatus according to claim 1, characterized by: The blow-off device is a manual blow-off valve (5) or an automatic blow-off valve (6).

3. The heat storage steam supply apparatus according to claim 1, characterized by: The blow-off device comprises a manual blow-off valve (5) and an automatic blow-off valve (6) which are connected in parallel to the blow-off branch pipe (4).

4. The thermal storage steam generator of claim 1 wherein: The blow-off device comprises a manual blow-off valve (5) and an automatic blow-off valve (6) which are connected in series to the blow-off branch pipe (4), and the water outlet end of the manual blow-off valve (5) is connected to the water inlet end of the automatic blow-off valve (6).

5. The heat storage steam supply apparatus according to claim 1, characterized by: The blow-off branch pipe (4) comprises a first blow-off branch pipe (41) and a second blow-off branch pipe (42) which are connected in parallel, the blow-off device comprises a first manual blow-off valve (51) and an automatic blow-off valve (6) which are connected in series to the first blow-off branch pipe (41), and the water outlet end of the first manual blow-off valve (51) is connected to the water inlet end of the automatic blow-off valve (6), and the blow-off device further comprises a second manual blow-off valve (52) which is arranged in the second blow-off branch pipe (42).

6. A thermal storage steam generator according to any one of claims 3 to 5, wherein: The automatic blow-off valve (6) is an electromagnetic valve, an electrically controlled valve or a pneumatically controlled valve.

7. The heat storage steam supply apparatus according to claim 1, characterized by: The heat exchange coil (3) is arranged in the heat storage tank (1) in a spiral shape from top to bottom.

8. The thermal storage steam generator of claim 1 wherein: The heat exchange coil (3) is arranged on the inner wall or the outer wall of the heat storage tank (1) in a spiral shape from top to bottom.

9. The heat storage steam supply apparatus according to claim 1, characterized by: The heat storage medium is a phase change heat storage medium.

10. The thermal storage steam generator of claim 1 wherein: The heat storage medium is a molten salt, a heat conducting oil or a solid heat storage material.

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