KR102428610B1 - A heater that uses dissolved and solidified salt as a heating medium - Google Patents

Abstract

Provided is a heater using melted and solidified salt as a heating medium. The heater using the melted and solidified salt as the heating medium comprises: a heat exchange tube; a tube protecting member accommodating and protecting the heat exchange tube; the heating medium filled inside the tube protecting member, heated by a heat source, and exchanging heat with the heat exchange tube; and the heat source heating the heating medium. The heating medium is the melted and solidified salt. The salt which has been melted and solidified is obtained from roasted salt by heating ordinary salt to a temperature of equal to or higher than 600 ℃; heating the salt again to a temperature between 800 to 1000 ℃ to be melted; cooling and solidifying the salt; and hitting and breaking the salt to be in a form of a lump. Provided is the heater using the melted and solidified salt as the heating medium, so that rapid high-temperature heating and long-term heating effects can be ensured by the heat source.

Description

A heater that uses dissolved and solidified salt as a heating medium

The present invention relates to a heater, and more particularly, to a heater using melted and solidified salt as a heating medium, which can obtain rapid high-temperature heating of a heating medium by a heat source and a heat-generating effect of a heating medium for a long time by using melted and solidified salt as a heating medium it's about

In general, a heater is a device for obtaining hot air and hot water by heating air or water by a heat source, and may be classified into a combustion type using gas and oil as a heat source and an electric type using electricity as a heat source. In the case of combustion types that use gas and oil as heat sources, most of them are direct heating methods, which reduce thermal efficiency and cause air pollution.

In addition, one of the requirements of the heater is the efficient use of energy, and as a method for saving energy, a method of using salt water as a heat storage medium has been devised. For example, in Korean Utility Model Registration Publication No. 20-0250625 and Patent Registration Publication No. 10-0338924, by using a thermal storage liquid such as salt water instead of general water as a thermal storage medium, the thermal storage liquid is heated in a short time and the heated heat is generated at the same time. A technique for maintaining a high temperature for a long time is disclosed.

However, the prior art has a limitation in obtaining the rapid heating of the salt solution at a high temperature and the heating effect for a long time by using the salt solution using general salt as the heat storage solution.

In addition, since the metal is changed by the compound contained in the salt, there is a problem in that the corrosive property is not deteriorated.

Republic of Korea Utility Model Registration Publication No. 20-0250625 Korean Patent Registration Publication No. 10-0338924

The problem to be solved by the present invention is to provide a heater using melted and solidified salt as a heating medium by using the melted and solidified salt as a heating medium to obtain rapid high-temperature heating by a heat source and a long-term exothermic effect.

In addition, it is to provide a warmer using melted and solidified salt with remarkably low corrosiveness due to vaporization of compounds other than pure metals as a heating medium.

In addition, the problems of the present invention are not limited to the above-mentioned problems, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

A heater using melted and coagulated salt as a heating medium according to an embodiment for solving the above problems is a heat exchange tube, a tube protection member for accommodating and protecting the heat exchange tube, the tube protection member is filled inside, and by a heat source A heating medium that is heated and heat exchanged with the heat exchange tube, and a heat source for heating the heating medium, wherein the heating medium is melted and solidified salt, and the melted and solidified salt is obtained by heating general salt to a temperature of 600° C. or higher to obtain baked salt , is a salt obtained in the form of a lump by heating it again to a temperature between 800 and 1000 ℃ to melt it, cooling and solidifying it, and then crushing it by hitting it.

The heat exchange tube may include an inlet portion provided on one side, an outlet portion provided on the other side of the inlet portion, and a heat exchange portion provided in a coil shape between the inlet portion and the outlet portion.

The tube protection member includes an inner member, an outer member corresponding to the inner member and spaced apart from the inner member, an upper member connecting upper ends of the inner member and the outer member, and connecting the lower ends of the inner member and the outer member It may include a lower member.

It may further include a heat transfer member input to the heating medium to increase the thermal conductivity of the heating medium.

It may further include a case surrounding the heat source and the tube protection member.

The case may further include a body and a accommodating groove recessed to receive a heat source on the inner surface of the body, and a heat reflecting plate mounted to the accommodating groove.

The case includes a first body having a space formed therein, an inlet provided at a lower end of the first body and communicating with the space, and an outlet provided at an upper end of the first body and communicating with the space can do.

It may further include a hot air movement inner member for guiding the movement of the hot air in the space of the first body.

According to the heater using the melted and solidified salt as a heating medium according to an embodiment of the present invention, it is possible to obtain rapid high-temperature heating of the heating medium by a heat source by using the melted and solidified salt as a heating medium.

In addition, since the heating effect of the heating medium can be obtained for a long time, energy can be saved and economical efficiency can be improved.

In addition, compounds other than pure metals are vaporized to significantly lower corrosiveness, thereby prolonging the life of the product.

1 is a partially cut-away perspective view of a heater using melted and solidified salt as a heating medium according to an embodiment of the present invention.
2 is a partially cutaway perspective view of a heater using melted and coagulated salt as a heating medium according to an embodiment of the present invention.
3 is a plan sectional view of a heat exchange unit of a heater using melted and coagulated salt as a heating medium according to an embodiment of the present invention.
4 is a plan sectional view showing another embodiment of a heat exchange unit of a heater using melted and coagulated salt as a heating medium according to an embodiment of the present invention.
5 is a cross-sectional view illustrating a state in which a heat transfer medium of a heater using melted and solidified salt as a heating medium is electrically driven according to an embodiment of the present invention.
6 is a cross-sectional view illustrating a state in which a heat transfer medium of a heater using melted and coagulated salt as a heating medium is driven with a gas according to an embodiment of the present invention.
7 is a cross-sectional view illustrating a state in which a heat transfer medium of a heater using melted and coagulated salt as a heating medium is driven with a gas according to another embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims.

Hereinafter, specific embodiments will be described with reference to the accompanying drawings.

1 is a partially cut-away perspective view of a heater using melted and coagulated salt as a heating medium according to an embodiment of the present invention, and FIG. It is a perspective view, and FIG. 3 is a plan sectional view of a heat exchange unit of a heater using melted and coagulated salt as a heating medium according to an embodiment of the present invention.

1 to 3 , a heater 100 using melted and coagulated salt as a heat medium according to an embodiment is a heater 100 using melted and coagulated salt as a heat medium, and a heat exchange tube 110, tube protection It may include a member 120 , a heating medium 130 , and a heat source 140 .

The heat exchange tube 110 is heat-exchanged with the heating medium 130 heated by the heat source 140 to heat air or water moving inside. The heat exchange tube 110 has an inside penetrated so that air or water moves, an inlet 111 is provided on one side, an outlet 112 is provided on the other side of the inlet 111, and the inlet 111 and A heat exchange part 113 provided in a coil shape may be provided between the outlet parts 112 . In some embodiments, the inlet 111 may include a blower or a pump 111 ′ for transporting air or water, and may forcibly transport the air or water by the blower or pump 111 ′. In some embodiments, the outlet portion 112 may include a shut-off valve 112' for controlling the discharge of air or water. The amount of air or water discharged to the outlet 112 by the shut-off valve 112 ′ can be adjusted. In addition, in some embodiments, the outlet 112 may further include a temperature sensor for detecting the temperature of air or water. By sensing the temperature of the air or water discharged to the outlet 112 by the temperature sensor, and adjusting the temperature of the heat source 140 according to the control of the controller, the air or water discharged to the outlet 112 is at a constant temperature. be able to maintain Also, in some embodiments, the heat exchange unit 113 may further include a heat exchange rib. A plurality of heat exchange ribs may be provided in a washer shape on the outer surface of the heat exchange unit 113 . The heat exchange rib may be provided in a streamlined shape on the outer surface of the heat exchange unit 113 . Since the heat exchange rib is provided on the outer surface of the heat exchange unit 113 , the heat transfer area with the heat medium 130 increases, thereby increasing heat transfer efficiency.

The tube protection member 120 may receive and protect the heat exchange tube 110 . The tube protection member 120 corresponds to the inner member 121 positioned inside the heat exchange unit 113 and the inner member 121 to be spaced apart from each other by a predetermined distance, and an outer member 122 positioned outside the heat exchange unit 113 . , an upper member 123 connecting upper ends of the inner member 121 and the outer member 122 , and a lower member 124 connecting lower ends of the inner member 121 and the outer member 122 . In some embodiments, the external member 122 may have a through hole through which the inlet part 111 and the outlet part 112 of the heat exchange tube 110 are respectively coupled. The through-hole to which the inlet part 111 is coupled may pass through the lower end of the external member 122 , and the through-hole to which the outlet part 112 is coupled may penetrate through the upper end of the external member 122 .

Referring to FIG. 4 , in some embodiments, the tube protection member 120 may form a coating layer (C). The coating layer C may be formed on the outer surface of the inner member 121 , the inner surface of the outer member 122 , and the inner surface of the upper member 123 and the lower member 124 . The coating layer (C) may be formed of ceramic to reinforce the tube protection member 120 and solve the corrosion problem of the tube protection member 120 . In some embodiments, a support member 120' for supporting and supporting the tube protection member 120 may be further included. In some embodiments, the support member 120 ′ may maintain a gap with the lower cover 160 ′ described below while supporting and supporting the tube protection member 120 .

The heating medium 130 may be filled into the tube protection member 120 and heated by the heat source 140 . The heated heating medium 130 may heat the air or water by exchanging heat with air or water moving to the heat exchange tube 110 . The heating medium 130 may be melted and solidified salt. The melted and solidified salt is obtained in the form of a lump by heating ordinary salt to a temperature of 600 ° C or higher, heating it again to a temperature between 800 and 1000 ° C, melting it, cooling and solidifying it, and crushing it by hitting it. can By heating the general salt to a temperature of 600℃ or higher, the moisture contained in the general salt is removed, reducing the instantaneous amplification caused by moisture and preventing gas generation in advance. In addition, by reheating the baked salt heated to a temperature of 600 ° C. or higher to a temperature between 800 and 1000 ° C. and melting it, the hydrochloric acid group, hydroxyl group, and sulfuric acid group contained in the general salt can be vaporized to significantly lower the corrosiveness of the metal. Therefore, the melted and coagulated salt has only pure metals, so that the corrosion property can be significantly lowered. In some embodiments, the melted and coagulated salt is the time to obtain the baked salt by heating the general salt to 600 ° C. or higher, the time to melt the baked salt by heating it to 800 ~ 1000 ° C., and the time to cool the molten salt depending on the season and weather It can vary with change, and this can be done in a variety of ways.

In some embodiments, the heating medium 130 may further include a heat transfer member 130 ′ for increasing thermal conductivity. The heat transfer member 130 ′ may be an aluminum piece or powder having excellent heat transfer and low corrosion. Since the heat transfer member 130 ′ is included in the heating medium 130 , it is possible to minimize the generation of voids by filling the voids between the melted and solidified salts, that is, the heating mediums 130 , to further increase the heat transfer effect. Here, the heat storage time may be increased depending on the amount of the melted and solidified salt, that is, the heating medium 130 and the heat transfer member 130 ′.

The heat source 140 may be a heating wire for heating the heating medium. The heating wire can use electricity. However, the present invention is not limited thereto, and the heat source 140 may use oil or gas.

Referring to FIG. 5 , the warmer 100 may further include a case 150 . The case 150 may surround the heat source 140 and the tube protection member 120 . The case 150 may include a body 151 and a receiving groove 152 . The body 151 may be formed of an insulating material having low thermal conductivity. The receiving groove 152 may be concavely formed to accommodate the heat source 140 on the inner surface of the body 151 . The receiving groove 152 may be concavely formed in the inner surface of the body 151 according to the shape of the heat source 140 which is a heating wire. In some embodiments, the receiving groove 152 may further include a heat reflecting plate. The heat reflection plate is attached to the receiving groove 152 and reflects the heat generated from the heat source 140 in the direction of the tube protection member 120 to more easily heat the heating medium 130 .

Referring to FIG. 6 , in some embodiments, when gas or oil is used as a heat source, the case 150 ′ may include a first body 153 , an inlet 154 , and an outlet 155 . The first body 153 may have a space 153a formed therein. The inlet 154 is provided at the lower end of the first body 153 and may communicate with the space 153a. The outlet 155 is provided at the upper end of the first body 153 and may communicate with the space 153a. That is, after the heat generated by the heat source 140 is introduced into the inlet 154 , it is discharged to the outlet 155 via the space 153a of the first body 153 to exchange heat with the heating medium 130 . have.

Referring to FIG. 7 , in some embodiments, the case 150 ′ may further include a hot air movement inner member 156 for guiding the movement of hot air in the space 153a of the first body 153 . The heat transfer inner member 156 is zigzag stacked in the space 153a of the first body 153 or is formed in a streamlined shape to increase the residence time of the heat in the space 153a, thereby increasing the heat exchange efficiency with the heating medium 130. can be raised In some embodiments, the hot air movement control protrusion may further protrude from the upper surface and/or the lower surface of the inner member 156 during hot air movement. The hot air movement control protrusion controls the movement of hot air moving along the inner member 156 during hot air movement to further increase the hot air residence time in the space 153a, thereby further improving heat exchange efficiency with the heating medium 130 . In some embodiments, the hot air may be introduced into the inlet 154 by a fan.

The warmer 100 may further include an upper cover 160 and a lower cover 160 ′. The upper cover 160 and the lower cover 160 ′ may cover and protect the tube protection member 120 and upper and lower ends of the cases 150 and 150 ′. In some embodiments, the upper cover 160 may include a through-hole penetrating therein. A temperature sensor for sensing the temperature of the heating medium 130 may be installed in the through hole.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains may be embodied in other specific forms without changing the technical spirit or essential features of the present invention. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

100: warmer
110: heat exchange tube
111: inlet
111': blower or pump
112: exit
112': shut-off valve
113: heat exchange unit
120: tube protection member
121: internal member
122: external member
123: upper member
124: lower member
120': support member
130: heating medium
130': heat transfer member
140: heat source
150: case
151: body
152: receiving home
150': case
153: first body
153a: space
154: entrance
155: exit
156: internal absence during opening
160: top cover
160': lower cover

Claims (8)

heat exchange tube;
a tube protection member for accommodating and protecting the heat exchange tube;
a heating medium filled in the tube protection member and heated by a heat source to exchange heat with the heat exchange tube; and
A heat source for heating the heating medium,
The heating medium is melted and solidified salt, and the melted and solidified salt is obtained by heating general salt to a temperature of 600° C. or higher to obtain baked salt, and heating it again to a temperature between 800 and 1000° C. to melt, cooling and A heater using melted and coagulated salt as a heating medium, characterized in that it is salt obtained in the form of a lump by crushing it after coagulation.
According to claim 1, wherein the heat exchange tube,
A heater using melted and solidified salt as a heating medium, comprising an inlet portion provided on one side, an outlet portion provided on the other side of the inlet portion, and a heat exchange portion provided in a coil shape between the inlet portion and the outlet portion.
According to claim 1, wherein the tube protection member,
Melting comprising an inner member, an outer member corresponding to the inner member spaced apart from the inner member, an upper member connecting upper ends of the inner member and the outer member, and a lower member connecting the lower ends of the inner member and the outer member A heater using solidified salt as a heating medium.
The heater according to claim 1, further comprising a heat transfer member input to the heating medium to increase the thermal conductivity of the heating medium.
The method of claim 1,
A heater using melted and solidified salt as a heating medium further comprising a case surrounding the heat source and the tube protection member.
According to claim 5, wherein the case,
A heater using melted and solidified salt as a heating medium, comprising: a body;
According to claim 5, wherein the case,
A first body having a space formed therein, an inlet provided at the lower end of the first body and communicating with the space, and an outlet provided at an upper end of the first body and communicating with the space. A heater using salt as a heating medium.
[8] The heater of claim 7, further comprising a hot air movement inner member for guiding the movement of hot air in the space of the first body.

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