KR20170108425A - Water heater using frictional heat of fluid - Google Patents

Water heater using frictional heat of fluid Download PDF

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Publication number
KR20170108425A
KR20170108425A KR1020160032290A KR20160032290A KR20170108425A KR 20170108425 A KR20170108425 A KR 20170108425A KR 1020160032290 A KR1020160032290 A KR 1020160032290A KR 20160032290 A KR20160032290 A KR 20160032290A KR 20170108425 A KR20170108425 A KR 20170108425A
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KR
South Korea
Prior art keywords
fluid
friction
body portion
along
impeller
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Application number
KR1020160032290A
Other languages
Korean (ko)
Inventor
오영한
신말순
Original Assignee
오영한
신말순
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Priority to KR1020160032290A priority Critical patent/KR20170108425A/en
Publication of KR20170108425A publication Critical patent/KR20170108425A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
    • F24H1/102—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/02—Casings; Cover lids; Ornamental panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818—Arrangement or mounting of electric heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H2250/00—Electrical heat generating means
    • F24H2250/02—Resistances

Abstract

Disclosed is a water heater in which friction between fluids is increased to promote molecular motion of a fluid, thereby improving heating efficiency.
The frictional heat according to one aspect of the present invention includes a case having both ends thereof opened and an outlet at one side thereof, a front cover having a fluid inlet at the center thereof and covering an open end of the case, And a friction head which is rotatably mounted in the case and heats the fluid, the friction head comprising: a hollow cover having a hollow opening at one side thereof and a hollow portion having a rotary actuator connecting portion formed at the other side thereof; A plurality of first friction protrusions protruding from the outer circumferential surface of the body portion along the circumferential direction and spaced apart from each other along the circumferential direction and having a discharge hole communicated with the hollow portion of the body portion; And are arranged along the longitudinal direction and spaced apart from each other along the circumferential direction, A plurality of second friction protrusions provided on the outer circumferential surface of the first and second friction protrusions and having discharge holes communicated with the hollow portion of the body portion; A first impeller for forming a first vortex so that fluid is sucked into the hollow portion of the body portion is disposed in an opening of the body portion, A second impeller is disposed to form a second vortex of the flow opposite to the first vortex, wherein the first impeller includes a shaft having a fluid inflow path formed therein, and a shaft extending radially from the shaft to cover the opening of the body portion Wherein a plurality of first blades spaced apart from each other along a circumferential direction are formed on an inner circumferential surface of the shaft, Surface facing the repeller has in the circumferential direction is formed with a plurality of second blades that are spaced apart from each other arranged.

Figure P1020160032290

Description

[0001] The present invention relates to a water heater using frictional heat,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a water heater using frictional heat, and more particularly to a water heater for heating a fluid by using heat generated when friction occurs.

Generally, a water heater is a device which heats a fluid such as water or a heating oil using chemical fuel or gas for hot water supply or heating, uses the heated fluid directly, or heats the room at a constant temperature through a heated fluid .

However, the above-mentioned water heater using the chemical fuel has a problem in that a large amount of pollutants are discharged during the combustion process of the chemical fuel and thermal efficiency is lowered compared to the consumed chemical fuel. In addition, the electric water heater using electric energy generates heat through the use of electric resistance or the flow of fluid, and there is always a risk of electric leakage or fire depending on the nature of the fluid, and the fluid is heated only in the vicinity of the heating wire, There is a problem that it takes much time to heat a large amount of fluid.

Accordingly, in recent years, there has been used a water heater in which a fluid is flowed through electric energy and a fluid is directly heated by a fluid flow. At this time, it is important to increase the flow rate and the turbulent flow of the fluid in order to accelerate the friction heat, which heats the fluid through frictional and cavitation of the fluid.

Meanwhile, a conventional friction water heater includes a case and a cylindrical head rotated inside the case, and generates heat by rubbing the fluid between the head and the case through rotation of the head.

However, in the conventional frictional water heater, the fluid filled in the space between the outer circumference of the head and the inner circumference of the case is heated. If the space is too wide, the frictional amount of the fluid is low and the heating is not properly performed. There is a problem that it takes much time to heat a large amount of fluid.

However, it has a disadvantage in that it can not sufficiently provide a turbulent flow or fluid friction and flow velocity necessary for raising a large amount of fluids.

Korean Patent Publication No. 10-2011-0027157 (published on March 16, 2011)

The object of the present invention is to provide a water heater in which friction between fluids is increased and molecular motion of a fluid is promoted, thereby improving heating efficiency.

The frictional heat according to one aspect of the present invention includes a case having both ends thereof opened and an outlet at one side thereof, a front cover having a fluid inlet at the center thereof and covering an open end of the case, And a friction head which is rotatably mounted in the case and heats the fluid, the friction head comprising: a hollow cover having a hollow opening at one side thereof and a hollow portion having a rotary actuator connecting portion formed at the other side thereof; A plurality of first friction protrusions protruding from the outer circumferential surface of the body portion along the circumferential direction and spaced apart from each other along the circumferential direction and having a discharge hole communicated with the hollow portion of the body portion; And are arranged along the longitudinal direction and spaced apart from each other along the circumferential direction, A plurality of second friction protrusions provided on the outer circumferential surface of the first and second friction protrusions and having discharge holes communicated with the hollow portion of the body portion; A first impeller for forming a first vortex so that fluid is sucked into the hollow portion of the body portion is disposed in an opening of the body portion, A second impeller is disposed to form a second vortex of the flow opposite to the first vortex, wherein the first impeller includes a shaft having a fluid inflow path formed therein, and a shaft extending radially from the shaft to cover the opening of the body portion Wherein a plurality of first blades spaced apart from each other along a circumferential direction are formed on an inner circumferential surface of the shaft, Surface facing the repeller has in the circumferential direction is formed with a plurality of second blades that are spaced apart from each other arranged.

According to another aspect, a plurality of flow grooves spaced from each other along the circumferential direction may be formed radially on the opposite surface of the flange facing the second impeller.

According to another aspect, the front cover or the rear cover may be provided with a heater rod.

According to another aspect, magnets having different polarities from each other may be alternately arranged around the fluid inlet of the front cover.

According to another aspect of the present invention, a protruding portion protruding from the body portion and having teeth formed on an outer circumferential surface thereof may be provided on an opening side of the friction head.

According to the present invention, the fluid is not indirectly heated by the combustion of the chemical fuel or the resistance heating of the heating wire, but is self-heated by the rotation of the friction head, thereby improving the heating efficiency.

In addition, a vortex is formed through the first and second impellers, and the fluid is sucked into the friction head without a separate pump, thereby simplifying the apparatus and improving the economy.

1 is an exploded perspective view of a water heater using frictional heat according to an embodiment of the present invention.
2 is a cross-sectional view of the water heater using the frictional heat shown in FIG.
3 is a perspective view of the friction head shown in Fig.
4 is a side view of the friction head shown in Fig.
5 is a cross-sectional view of the friction head shown in FIG. 4 taken along line AA.
6 is a cross-sectional view of the friction head shown in Fig. 4 cut along BB.
7 is a perspective view of a first impeller according to an embodiment of the present invention.
FIG. 8 is a perspective view of the first impeller shown in FIG. 6 as seen from another direction; FIG.
9 is a perspective view of a water heater using frictional heat according to another embodiment of the present invention.
10 is a perspective view of a water heater using frictional heat according to another embodiment of the present invention.

The foregoing and further aspects will become apparent through the following examples. In the present specification, corresponding elements in each figure are referred to by the same numerals. In addition, the shape and size of the components can be exaggerated. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to various embodiments of the present invention.

FIG. 1 is an exploded perspective view of a water heater using frictional heat according to an embodiment of the present invention, and FIG. 2 is a sectional view of a water heater using frictional heat shown in FIG.

1 and 2, a water heater 100 using frictional heat has a case 140 having both ends opened and an outlet 141 at one side, a case 140 covering an open end of the case 140, And a rear cover 160 covering the other end of the case 140. The rear cover 160 is rotatably mounted inside the case 140 to heat the fluid, (130).

More specifically, the case 140 may have a hollow cylindrical shape and may have a heating space therein. The case 140 may be made of a material such as metal or reinforced plastic capable of withstanding high-speed rotation. When the fluid is oil such as heat medium oil or vapor, it is preferable that the case 140 is made of steel or the like having high strength. An outlet 141 is provided at one side of the case 140. The outlet 141 may be connected to a pipe for heating or supplying hot water.

The front cover 110 covers an open end of the case 140 and a fluid inlet 111 is formed at the center. The front cover 110 may be made of a metal or the like and may have a circular shape according to the shape of the case 140.

The rear cover 160 may cover the other open end of the case 140 and may be made of metal similar to the front cover 110. A through hole may be formed in the center of the rear cover 160, through which the rotation shaft 170 for transmitting the rotational force to the friction head 130 may pass.

3 to 6, the friction head 130 includes a plurality of first friction protrusions 132 and second friction protrusions 133 formed on the outer peripheral surface of the body portion 131 and the body portion 131, And a ring-shaped groove portion 134. More specifically, the body portion 131 has an opening 131a formed on one side and a rotating actuator connecting portion 131b on the other side.

The plurality of first friction protrusions 132 protrude along the longitudinal direction from the outer circumferential surface of the body portion 131 and are spaced apart from each other along the circumferential direction, 132a.

At both ends of the first friction protrusion 132, a first friction hole 132c passing through the body of the first friction protrusion 132 in the circumferential direction and a pair of second friction holes 132c vertically penetrating in the outward direction from the first friction hole 132c The second friction hole 132b may be formed. When the friction head 130 is rotated by the first and second friction holes 132c and 132b, the fluid that has flowed into the second friction hole 132b is quickly discharged to the first friction hole 132c And air bubbles are generated in the periphery. Such a bubble improves the heating rate of the fluid.

The plurality of second friction protrusions 133 are formed along the longitudinal direction on the outer circumferential surface of the body portion 131 and are spaced apart from each other along the circumferential direction and are disposed between the first friction protrusions 132, And a discharge hole 133a communicating with the hollow portion 137 of the discharge port 133a.

That is, the second friction protrusions 133 are disposed alternately with the first friction protrusions 132 in the circumferential direction. On the other hand, a frictional groove portion 136 is formed between the second frictional projection 133 and the first frictional projection 132. Here, the friction groove portion 136 may be formed in a semicircular shape. The frictional force with the fluid can be increased at the circumferential surface of the friction protrusions 132 and 133 through the friction groove portion 136 and the fluid can be rotated along the friction protrusions 132 and 133. [

The plurality of ring-shaped groove portions 134 are formed along the circumferential direction on the outer circumferential surface of the first and second friction protrusions 132 and 133 and are spaced apart from each other along the longitudinal direction of the body portion 131, 132, and 133, respectively.

Since the first and second friction protrusions 132 and 133 are formed on the outer circumferential surface of the body portion 131 of the friction head 130 in this way, when the friction head 130 rotates, the first and second friction protrusions 132 and 133 The fluid is compressed in a narrow space between the inner circumferential surface of the case 140 and the frictional groove portion 136 and the inner circumferential surface of the case 140 or between the ring shaped groove portion 134 and the inner circumferential surface of the case 140, Can be expanded. By repeating such compression and expansion of the fluid, the momentum of the fluid molecule is increased and the frequency of friction between fluid molecules is increased, so that the self-heating of the fluid can be promoted.

In this way, the fluid in the heating space is not indirectly heated by the combustion of chemical fuels or the resistance heating of the heating wire, but the heat generated by decomposition of bubbles due to acceleration / decompression and deceleration / It is possible to generate heat by itself due to heat generated by the friction between the electrodes, thereby providing a high heating efficiency.

A first impeller 120 forming a first vortex is disposed in the opening 131a of the body part 131 so that the fluid is sucked into the hollow part 137 of the body part 131. A rotary actuator connecting part 131b, A second impeller 150 is disposed to form a second vortex of the flow opposite to the first vortex.

7 to 8, the first impeller 120 includes a shaft 121 having a fluid inflow path formed therein and a shaft 121 extending in the radial direction to form an opening 131a of the body 131 A plurality of first blades 123 spaced apart from each other along the circumferential direction are formed on an inner circumferential surface of the shaft 121 and a plurality of second blades 123 are formed on the inner circumferential surface of the shaft 121. The second blades 123 of the second impeller 150 and the flange 122 of the flange 122 And a plurality of second blades 124 spaced from each other along the circumferential direction are formed on the facing surface.

The first impeller 120 may be coupled to the opening 131a of the body part 131 through a fastening member and rotated together with the body part 131. [ When the blade of the first impeller 120 rotates, a first vortex is formed in the rotating direction from the inlet 111 of the front cover 110 toward the hollow portion 137 of the body portion 131. The fluid on the side of the inlet port 111 can be sucked into the hollow portion 137 of the body portion 131 by the first vortex. Then, the sucked fluid can be rotated along the inner circumferential surface of the body portion 131. At this time, the fluid to be rotated along the inner circumferential surface of the body portion 131 can be discharged through the discharge hole 138 through the spiral flow force and the centrifugal force.

And the second impeller 150 may be disposed on the rotating actuator connecting portion 131b side. The second impeller 150 is inserted into the hollow portion 137 of the body portion 131 and coupled with the rotating shaft 170 by a bolt and rotated in the same rotational direction as the body portion 131. [ The second impeller 150 may have a plurality of third blades 151 projecting obliquely along the circumferential direction. More specifically, the blade 151 of the second impeller 150 is disposed to face the blade 124 of the first impeller 120 and is formed to be inclined in a direction different from the blade 124 of the first impeller 120 . Accordingly, the blade 151 of the second impeller 150 forms a spiral second vortex from the front surface of the rotary actuator connecting portion 131b toward the opening 131a.

At this time, the first vortex and the second vortex lower the pressure of the hollow portion 137 to suck the fluid into the hollow portion 137, so that no separate pump is required for the inlet 111, It is possible to simultaneously perform inhalation. As such, since a separate pump for supplying fluid is not required, the apparatus is simplified and the economical efficiency of the product is improved.

In addition, the first vortex and the second vortex form a helical flow repulsive in mutually opposite directions and collide with each other, and generate frictional heat of fluid at the time of impact. At the same time, the collision of the two fluid flows repulsive to the portions where the first vortex and the second vortex meet causes a large number of turbulent flows to be generated, thereby increasing the frequency of friction between the fluid molecules and accelerating the heating of the fluid.

In addition, since the first vortex and the second vortex can pressurize the fluid to the inner circumferential side of the body portion 131 together with the centrifugal force due to the rotation of the body portion 131, even if the head 100 has the same number of revolutions per hour The flow velocity of the fluid ejected through the ejection hole 160 is increased, and the formation of the bubble and the inner wave are promoted, so that the heating rate of the fluid can be improved. Further, the frictional force between the inner periphery of the body portion 131 and the fluid can be increased.

On the other hand, a plurality of flow grooves 124 spaced apart from each other along the circumferential direction may be formed radially on the opposite surface of the flange 122 facing the second impeller 150. The fluid contacted to the second impeller 150 is rotated together with the second impeller 150 by the flow groove 124 when the second impeller 150 is rotated. Accordingly, the turbulent flow of the fluid increases, and the frequency of friction between the fluid molecules increases, so that the heating efficiency can be improved.

FIG. 9 is a perspective view of a water heater using frictional heat according to another embodiment of the present invention, and FIG. 10 is a perspective view of a water heater using frictional heat according to another embodiment of the present invention.

Referring to FIGS. 9 to 10, a heater rod 190 may be installed on the front cover 110 or the rear cover 160. The heater rod 190 can heat the fluid in the case 140. In this case, since the fluid does not freeze, it is possible to prevent the fluid from being frozen and frozen in winter. It is possible to design the circuit so that the heater rod 190 operates only when the outside air temperature falls below zero, thereby preventing energy consumption.

Magnets (not shown) having different polarities from each other may be alternately arranged around the fluid inlet 111 of the front cover 110. That is, magnets of the N pole and the S pole can be alternately inserted. When a magnet is inserted around the fluid inlet 111, fluid entering the case 140 is magnetized by the magnet. Thus, the scale is prevented from being formed on the surface of the case 140 by the fluid, and the heating rate of the fluid is improved.

The protrusion 135 protruding from the body portion 131 and having teeth 135a formed on the outer circumferential surface thereof may be provided on the side of the opening 131a of the friction head 130. [ In this case, when the friction head 130 rotates, the fluid at the opening 131a side of the friction head 130 rotates together with the friction head 130 by the projection 135 and the turbulent flow of the fluid increases do. Therefore, the frequency of friction between fluid molecules increases, and the heating efficiency can be improved.

Further, the water heater using the frictional heat according to the present invention may further include a wind shield 180. The windshield 180 is for preventing the wind generated when the motor for rotating the rotary shaft 170 is operated from going to the case 140. The heating efficiency of the water heater can be improved because the case 140 is prevented from being cooled by the wind generated while rotating.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined by the appended claims. There will be. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

100: Water heater using frictional heat 110: Front cover
111: inlet 120: first impeller
130: Friction head 131: Body part
131a: Opening part 131b: Rotary actuator connection part
132: first friction projection 133: second friction projection
133a: discharge hole 134: ring-shaped groove
135: protrusion 135a: tooth
136: Friction groove portion 140: Case
141: Outlet 150: Second impeller
151: third blade 160: rear cover
170: rotating shaft 180: wind-

Claims (5)

A rear cover covering the other open end of the case, and a rear cover which is rotatable inside the case, wherein the front cover has an opening at one end thereof and an outlet at one end thereof, And a friction head mounted on the friction surface and heating the fluid,
The friction head includes a hollow body portion having an opening on one side thereof and a rotary actuator connection portion on the other side thereof. The hollow body portion is protruded along the longitudinal direction on the outer peripheral surface of the body portion and is spaced apart from each other along the circumferential direction, And a plurality of first friction protrusions formed on the outer circumferential surface of the body portion and spaced apart from each other along the circumferential direction, the first friction protrusions being disposed between the first friction protrusions, A plurality of second friction protrusions provided along the circumferential direction on the outer circumferential surface of the first and second friction protrusions and spaced apart from each other along the longitudinal direction of the body portion, And a plurality of ring-shaped grooves for partitioning the ring-
Wherein a first impeller for forming a first vortex is disposed in the opening of the body portion so that fluid is sucked into the hollow portion of the body portion and a second impeller for forming a second vortex of the flow opposed to the first vortex is disposed in the rotary actuator connection portion, An impeller is disposed,
Wherein the first impeller comprises a shaft having a fluid inflow path formed therein and a flange extending radially from the shaft and covering an opening of the body, wherein the first impeller comprises a plurality of spaced- And a plurality of second blades spaced apart from each other along the circumferential direction are formed on a surface of the flange facing the second impeller.
The method according to claim 1,
Wherein a plurality of flow grooves are radially formed on the opposite side of the flange surface facing the second impeller and are spaced apart from each other along the circumferential direction.
The method according to claim 1,
Wherein a heater rod is installed on the front cover or the rear cover.
The method according to claim 1,
Wherein magnets having different polarities are alternately arranged around the fluid inlet of the front cover.
The method according to claim 1,
And a protrusion formed on the opening of the friction head protruding from the body and having teeth on an outer circumferential surface thereof.
KR1020160032290A 2016-03-17 2016-03-17 Water heater using frictional heat of fluid KR20170108425A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110715451A (en) * 2019-09-17 2020-01-21 青岛经济技术开发区海尔热水器有限公司 Water heater shell and water heater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110715451A (en) * 2019-09-17 2020-01-21 青岛经济技术开发区海尔热水器有限公司 Water heater shell and water heater

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