WO2023068465A1

WO2023068465A1 - Instantaneous water heater

Info

Publication number: WO2023068465A1
Application number: PCT/KR2022/005388
Authority: WO
Inventors: 윤상구
Original assignee: 윤상구
Priority date: 2021-10-19
Filing date: 2022-04-14
Publication date: 2023-04-27
Also published as: KR20230055522A; KR102626188B1

Abstract

The present invention relates to an instantaneous water heater corresponding to a water heater for sequentially heating water directly and indirectly to provide hot water while instantaneously heating the water to a required temperature, wherein the instantaneous water heater minimizes heat loss while enabling instantaneous hot water generation by increasing a heat exchange area. The present invention comprises: a body having a water introduction pipe through which raw water is introduced and a water discharge pipe through which hot water is discharged; a coil pipe connected to the water introduction pipe to allow the raw water to be introduced therethrough and having a lower pipeline for discharging the raw water introduced in the body; a heater for indirectly heating the water introduced in the coil pipe primarily and directly heating the water discharged from the body secondarily to generate hot water; and a steam module in which when the hot water is discharged, the steam of the hot water generated by the heater is introduced to discharge the hot water through the water discharge pipe while filling the steam pressure therein, and when the hot water is not discharged, the steam pressure is lowered.

Description

instantaneous water heater

The present invention instantaneously heats raw water in a first indirect and second direct manner in a ceramic heater structure to rapidly heat water to a required temperature regardless of the discharge flow rate of hot water or the inlet temperature of raw water, and smoothly provide hot water, The present invention relates to an instantaneous water heater in which heat loss of the water heater is minimized and a vapor pressure module required for direct water pressure is integrally provided.

In general, a water heater is a device that generates and provides hot water by heating raw water supplied from a waterworks or raw water stored in a water tank, etc. Representatively, there is a boiler, and recently, a small water heater that is directly connected to a faucet in a building to provide hot water there is.

These water heaters use electricity as an energy source to heat raw water. Water heaters using electricity have a heater as a heat energy source inside and heat raw water by directly or indirectly contacting water to the heater.

For example, looking at conventional Korean Patent Publication No. 10-2015-0046539, a water tank having a raw water inlet and a hot water outlet; a ceramic heater installed inside the water tank; a temperature sensor for measuring the temperature of the hot water contained in the water tank; and a controller for controlling the temperature of the ceramic heater based on the measured value of the temperature sensor.

However, conventionally, as a storage type water heater, a tank for storing water is required, and a heater that transfers heat energy to the inside of the tank has a structure for heating the water stored in the tank, so the contact area of the heater is characteristic of the storage type water heater. It takes a lot of time to heat the water contained in a larger volume, and the heat energy continuously used to maintain the temperature of the water is wasted due to heat loss in the tank, so the thermal efficiency is significantly lowered. Therefore, there is a problem in that the temperature at which hot water is discharged is not constant.

In addition, since the raw water introduced into the tank has a relatively low temperature and a high flow rate, a disturbance phenomenon occurs due to collision with hot water filled and heated in the tank in the related art.

The present invention is to solve the conventional problems, and hot water is discharged while instantaneously heating raw water in a first indirect and second direct manner in a ceramic heater structure using a coil-shaped pipe, so that the discharge flow rate of hot water or the inflow of raw water Regardless of the temperature, the water is rapidly heated to the required temperature to provide hot water smoothly, and when the steam pressure rises using the steam pressure module that is filled with steam, the steam is blocked and the hot water is discharged through the outlet pipe. Its purpose is to reduce heat loss to the water heater tank by using a vapor pressure module.

In addition, the present invention is a structure in which the raw water passing through the coiled pipe is discharged using one or more discharge holes formed in the circular direction of the lower pipe, wherein the discharged raw water moves upward along the coil pipe and the wall while making fine turns. By forming a fluid flow pattern, the raw water of the heater part can maintain a constant flow rate, enabling sufficient heating for the raw water, and the out-of-field direction of the coil pipe has a faster flow rate than the heater part, so it is constant to the side adjacent to the outlet pipe Its purpose is to minimize heat loss during hot water heating, and to prevent disturbance through its structure.

The present invention to solve this object;

A main body having an inlet pipe through which raw water flows and an outlet pipe through which hot water is discharged;

A coil pipe connected to the inlet pipe, through which raw water is introduced, and having a lower pipe through which the raw water introduced into the main body is discharged;

a heater that firstly indirectly heats the water introduced into the coil pipe and secondarily directly heats the water discharged into the main body to generate hot water;

An instantaneous water heater characterized in that it is configured to include a; steam module that allows hot water to be discharged through the water outlet pipe while hot water vapor generated through the heater flows in when hot water is discharged, and the vapor pressure is lowered when hot water is not discharged. provides

In addition, the present invention;

The instantaneous water heater further includes a lower conduit in which the coil pipe discharges raw water into the main body using one or more discharge holes formed in a circumferential direction to form a fluid flow pattern of the raw water flowing into the main body.

In addition, the present invention;

The main body provides an instantaneous water heater that further includes a sensor member integrally formed with a side for measuring temperature and a side for measuring the presence or absence of water.

According to the present invention, it is possible to smoothly provide hot water while rapidly heating water to a required temperature regardless of the discharge flow rate of hot water or the inflow temperature of raw water, and providing a direct water pressure structure using a vapor pressure module to a water heater tank by a vapor pressure module. There is an effect of improving the energy efficiency of thermal energy by minimizing heat loss.

In addition, a fluid flow pattern is formed in which the raw water introduced into the body moves upward along the coil pipe and the wall, so that the ceramic heater part maintains constant heating, reduces heat loss in the outward direction of the coil pipe, and prevents disturbance. It works.

1 is a perspective view illustrating an instantaneous water heater according to an embodiment of the present invention;

2 is a side cross-sectional view and an enlarged view of a main part of an instantaneous water heater according to an embodiment of the present invention;

3 is a view of a lower pipe of an instantaneous water heater according to an embodiment of the present invention.

4 is a view of a sensor member of an instantaneous water heater according to an embodiment of the present invention.

5 and 6 are diagrams of an embodiment of an instantaneous water heater according to the present invention.

The characteristics of the instantaneous water heater according to the present invention will be understood by the embodiments described in detail below with reference to the accompanying drawings.

On the other hand, in describing the embodiments, detailed descriptions of components that are widely known and used in the technical field to which the present invention belongs or does not belong will be omitted, and unnecessary descriptions will be omitted, and the present invention according to this will be omitted. This is to make the point more clear.

Hereinafter, an instantaneous water heater according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4 .

Schematically looking at the instantaneous water heater 1 according to this, the main body 100 having an inlet pipe 110 and an outlet pipe 120; Coil pipe 200 for introducing and discharging raw water into the body 100; a heater 300 for heating the water discharged to the coil pipe 200 and the main body 100; It is composed of a steam module 400 in which steam is introduced when hot water is discharged and the vapor pressure is filled so that hot water is discharged and the vapor pressure is lowered when hot water is not discharged.

First, the main body 100;

It has an inlet pipe 110 through which raw water flows and an outlet pipe 120 through which hot water is discharged. The main body 100 is made in the form of a tank filled with raw water therein. As the body of the instantaneous water heater (1), it is installed in a place where the instantaneous water heater is applied, and the inlet pipe 110 and the outlet pipe 120 are inserted through the upper part of the main body 100, respectively, through the inlet pipe 110. Raw water flows into and fills the inner space of the main body 100, and hot water heated in the main body 100 can be discharged to the outside through the outlet pipe 120.

At this time, the inlet pipe 110 is connected to a water supply facility to supply raw water, and the outlet pipe 120 discharges and provides hot water to the side where the hot water is used. The main body 100 should measure the temperature and check the presence of water, and may be provided with one or a plurality of bimetal switches to control the operation of the heater 300. Preferably, about three bimetal switches are provided. It enables hot water generation and smooth hot water supply. The main body 100 is provided with a tank-shaped space filled with raw water therein, which may be partitioned into a first space s1 and a second space s2 by the separator 130, and the first space s1 The heater 300 and the coil pipe 200 are positioned there, and the lower conduit 210 is positioned in the second space s2.

In addition, the body 100 further includes a sensor member 140 integrally formed with a side for measuring the temperature and a side for measuring the presence or absence of water.

The sensor member 140 is provided with a thermistor 141 that measures the temperature, is provided with a terminal 142 that sends a minute current to the thermistor 141 to conduct current through the main body 100, and the thermistor 141 The temperature of the hot water inside the main body 100 is monitored in real time, and the presence or absence of water inside the main body 100 can be continuously monitored while energizing the main body 100 by sending a microcurrent through the terminal 142. .

At this time, the sensor member 140 may have a flange to be coupled to the main body 100, and it is necessary to cut off the current with a silicon O-ring as a part that is not energized.

In addition, the main body 100 further includes a separator 130 for blocking the flow of raw water discharged from the lower conduit 210.

The separation plate 130 is a plate body having a shape corresponding to the internal cross-sectional area of the main body 100, and the heater ( 300) can be seated and assembled on the assembled protruding part, and the first space s1 equipped with the coil pipe 200 and the heater 300 and the lower conduit 210 are located by the separator 130 The second space s2 is partitioned from each other inside the main body 100 to separate the lower conduit 210 from the first space s1.

In addition, the separation plate 130 is a separation passage 131 formed between the inner walls of the main body 100 in the lateral direction of the separation plate 130 so that raw water moves from the second space s2 to the first space s1 ; is further included.

The separation passage 131 is formed by separating the separation plate 130 from the inner wall of the main body 100, and when raw water is discharged from the lower conduit 210 located in the second space s2, through the separation passage 131. While allowing the raw water to flow into the first space s1, the raw water moves upward along the inner wall of the coil pipe 200 and the main body 100.

In this case, the separation passage 131 blocks the air contained in the raw water from flowing into the side where the heater 300 is provided, and in the case of the heater 300, the thermal parallelism coefficient is proportional to the time in contact with the air contained in the raw water Since the heater 300 may be damaged due to a change in the heater 300, the raw water air flow blocking function using the separation passage 131 may be prevented.

And, the coil tube 200;

It is connected to the water inlet pipe 110 and has a lower conduit 210 for discharging raw water introduced into the main body 100. The coil pipe 200 is inserted into the main body 100 to be positioned around the heater 300 in a non-contact manner, and the upper part of the coil pipe 200 is connected to the water inlet pipe 110 of the main body 100 so that the raw material is It can be introduced into the coil pipe 200, and the lower pipe 210 is provided at the bottom of the coil pipe 200, and raw water flowing into the coil pipe 200 is discharged to the lower pipe 210, and the inside of the main body 100 to fill the space

At this time, the coil tube 200 is formed in the form of a coil that is wound around the heater 300 in a non-contact manner, and the number of times the coil is wound can be adjusted, and the coil part of the coil tube 200 is the inner wall of the main body 100. The raw water that is formed by being wound close to and introduced into the coil part of the coil pipe 200 is first indirectly heated by the heater 300, passes through the coil pipe 200 and flows into the inside of the main body 100 to fill the raw water is directly heated secondarily by the heater 300.

In this case, raw water is instantaneously heated by the first indirect and second direct methods in the ceramic heater structure by the coil pipe 200 in the form of a coil, and hot water is generated to the required temperature regardless of the discharge flow rate of hot water or the inflow temperature of raw water. Hot water can be smoothly provided while rapidly heating water.

In addition, the coil pipe 200 further includes a lower conduit 210 forming a fluid flow pattern of raw water flowing into the main body using one or more discharge holes 211 formed in a circumferential direction.

The lower conduit 210 extends in the circumferential direction inside the second space s2 partitioned by the separator 130, and the coil portion of the coil pipe 200 extends in the circumferential direction of the lower conduit 210. As the passed raw water is discharged, one or more discharge holes 211 are formed to allow the raw water to flow into the body 100. For example, four or more discharge holes 211 may be formed in the lower pipe 210. there is.

That is, when the raw water is discharged using the discharge hole 211 of the lower conduit 210, the raw water discharged through one or more discharge holes 211 formed while making fine turns in the second space s2, the separation passage 131 Flows into the first space s1 of the body 100 through, and the raw water introduced into the first space s1 forms a fluid flow pattern that moves upward along the inner wall of the coil pipe 200 and the body 100. Thus, the flow velocity (water pressure) of the heater 300 and the out-of-field direction of the coil pipe 200 may be different.

In this case, the raw water of the heater 300 part enables sufficient heating for the raw water while maintaining a constant flow rate, and the out-of-field direction of the coil pipe 200 has a faster flow rate than the heater 300 portion, so that the water outlet pipe 120 Hot water with a constant amount of heat absorbed can be discharged while flowing in to the side adjacent to the main body 100, and the heat loss to the outer wall of the main body 100 can be significantly reduced, and the separator 130, the lower pipe 210 and one or more discharge holes ( 211) can prevent the disturbance phenomenon through the fluid flow.

And, the heater 300;

Water introduced into the coil pipe 200 is indirectly heated, and water discharged into the main body 100 is directly heated to generate hot water. The heater 300 is installed in a non-contact manner on the inside of the coil pipe 200 as the inside of the main body 100, and the raw water filled inside the main body 100 and the raw water flowing through the coil pipe 200 are heated by external power operation. are heated in a direct and indirect manner, respectively, to produce hot water.

At this time, the heater 300 is provided vertically in the form of a plate to uniformly heat the inner space of the main body 100 .

In addition, the heater 300 may be formed of a ceramic heater or a zirconium heater, and one or more heaters 300 further include one or more disposed at regular intervals.

One or more heaters 300 made of ceramic heaters or zircotium heaters are arranged in a row with plate portions spaced apart from each other, and the heaters 300 are basically made of ceramic heaters.

In this case, if one or more heaters 300 are added, the heating efficiency of the raw water is improved and hot water can be generated more quickly. It takes 10 to 30 seconds to reach , which is very fast, minimizing heat loss and maximizing energy efficiency.

In addition, the heater 300 further includes determining a thickness corresponding to a low current or a high current.

The thickness of the heater 300 corresponding to the low current or high current may be formed to 2 mm in the case of low current and 3 mm in the case of high current. In order to smoothly operate the ceramic heater 300.

And, the steam module 400;

When the hot water is discharged, steam of the hot water generated through the heater is introduced and the vapor pressure is filled so that the hot water is discharged through the water discharge pipe, and when the hot water is not discharged, the vapor pressure is lowered. The steam module 400 is provided to have a separate and independent space above the main body 100 so that the steam of hot water can be filled in the space of the steam module 400, and the main body 100 is discharged through the upper part of the steam module 400. The pipe 120 is connected while penetrating, and the inlet pipe 110 of the main body 100 is also connected to the top of the steam module 400 to allow raw water to flow into the main body 100, and is generated in the main body 100 The hot water can be discharged through the outlet pipe 120.

In addition, the steam module 400 further includes a chamber chamber 410 in which steam is introduced when hot water is used, the vacuum breaker 450 is closed and the steam pressure is filled, and the vacuum breaker 450 is opened when the hot water is not used and the steam pressure is released. do.

The chamber chamber 410 is a space formed independently above the main body 100, and the water outlet pipe 120 and the water inlet pipe 110 pass through the inside of the chamber chamber 410 and are connected to the main body 100, and the chamber Steam from hot water of the main body 100 may be introduced into the inner space of the chamber 410 to fill the inside of the chamber 410 with steam.

On the other hand, in order to fill the inside of the chamber chamber 410 with steam, a vacuum breaker 450 is provided at the top of the chamber chamber 410, and when the steam introduced into the chamber chamber 410 has an appropriate vapor pressure, the vacuum breaker While the 450 is closed, steam is filled into the chamber chamber 410, that is, hot water can be discharged through the water outlet pipe 120 while the steam pressure is filled into the chamber chamber 410 in the process of dispensing hot water. When hot water is not used, when the vapor pressure in the chamber 410 is lowered, the vacuum breaker 450 is opened and the steam is transformed into water, the steam transformed into water is collected through the recovery unit 430 provided at the bottom of the chamber 410 To be recovered back to the inside of the main body (100).

Here, in the chamber chamber 410, the inlet pipe 110 and the outlet pipe 120 pass through, and steam of hot water flows into the chamber chamber 410 through the outlet pipe 120 passing through the chamber chamber 410. It further includes that the vapor hole 420 is formed.

The steam hole 420 is formed as a small hole on one side of the water outlet pipe 120 inserted into the chamber chamber 410 and fills the chamber chamber 410 with steam pressure through the steam hole 420 when hot water is discharged. Hot water can be discharged through the water outlet pipe 120 with direct water pressure.

In addition, the steam module 400 further includes a vacuum breaker 450 that closes when steam flows into the chamber 410 and fills the chamber with an appropriate steam pressure, and opens when the steam pressure decreases due to blocking the steam inflow.

The vacuum breaker 450 protrudes from the upper part of the steam module 400 and is connected to the inner space of the chamber chamber 410, and is closed by the steam pressure flowing into the chamber chamber 410 or opened when the steam pressure is lowered.

Here, the vacuum breaker 450 includes a housing 451 having a space through which vapor pressure is introduced while penetrating toward the chamber chamber 410; It consists of; an operating mechanism 452 that selectively opens and closes the housing 451 by moving up and down by steam pressure inside the housing 451 .

The housing 451 is a pipe body and has a space inside, and the lower side of the housing 451 is connected to the inner space of the chamber chamber 410 so that the vacuum breaker 450 is installed in the steam module 400, the housing 451 has an inlet through which the vapor pressure is introduced and an outlet through which the vapor pressure is discharged.

The actuator 452 moves up and down by the vapor pressure inside the housing 451 to open and close by selectively blocking the outlet of the housing 451, and when the vapor pressure is greater than the weight of the actuator 452, the actuator When the vapor pressure of the actuator 452 is lower than its own weight, the actuator 452 moves downward to open the passage of the housing 451.

At this time, the actuator 452 may be provided with an O-ring for airtightness, a stopper for facilitating the closing of the passage of the housing 451, and the chamber chamber 410 corresponding to the weight of the actuator 452. ) It is possible to set the vapor pressure introduced into the inside, basically set to 1 atm, and when the pressure exceeds 1 atm, the vacuum breaker 450 closes and the inside of the chamber 410 can be filled with steam.

In this case, as the steam module 400 is applied, when the steam pressure rises, the vacuum breaker 450 closes at an appropriate steam pressure and fills the chamber chamber 410 with steam, so that hot water is discharged at direct water pressure through the water outlet pipe 120. A direct water pressure structure may be provided. When hot water is not used, the vacuum breaker 450 is opened to lower the vapor pressure inside the chamber chamber 410, and also minimizes heat loss to the upper part of the main body 100 due to the heat of the steam filled in the chamber chamber 410. there is.

In addition, the chamber chamber 410 further includes a recovery unit 430 that collects water generated by steam introduced therein and recovers the collected water to the main body 100 .

The recovery unit 430 is formed as a water collecting portion lower than the bottom surface of the chamber chamber 410 at the inner lower central portion of the chamber chamber 410, and collects water generated by steam introduced into the chamber chamber 410 into the recovery unit ( 430), and the water outlet pipe 120 is connected to the bottom side of the recovery unit 430, and the inlet groove 431 is formed at the bottom of the water outlet pipe 120 connected in this way, so that the water collected in the recovery unit 430 To be recovered to the main body 100 through the inlet groove 431.

In this case, the recovery unit 430 prevents water from remaining inside the chamber chamber 410 to smoothly maintain a space heated by steam, and removes water generated inside the chamber chamber 410 by steam. It can be recovered to the main body 100 very easily, so the structure is very efficient.

Hereinafter, an embodiment of an instantaneous water heater according to the present invention will be described in detail with reference to FIGS. 5 and 6 .

For example, as shown in FIG. 5, when the instantaneous water heater 1 having the above-described structure discharges raw water through the discharge holes 211 formed in the lateral direction of the lower pipe 210, four discharge holes 211 are formed. ) Due to the non-uniform discharge amount, fine turning occurs, and the raw water discharged through the four discharge holes 211 moves from the second space s2 to the first space s1 through the separation passage 131 while making fine turns. It flows in to form a flow field on the inner wall of the main body 100.

At this time, the raw water flowing along the inner wall of the main body 100 is gathered toward the outlet pipe 120 in the outward direction of the coil pipe 200. (Left) Also, the raw water discharged through the four discharge holes 211 is a coil A vector field flowing along the tube 200 can be confirmed. (Right)

In addition, as shown in FIG. 6 , the instantaneous water heater 1 shows the temperature and speed distribution patterns formed in the flow pipe and main body in an abnormal state for up to 30 seconds when a flow rate of 3 L/min and 4.2 kW power are used. indicate Convective transfer of heat is carried out according to the micro-flow, and the temperature rises around the heater, which depends on the amount of injection, and discharge occurs simultaneously. The speed was adjusted to the maximum 0.6m/s scale, and the temperature was visualized after adjusting the maximum 400℃ scale range. Ansys CFX fluid analysis is used.

as explained above. Although the present invention has been expressed in descriptions and drawings illustrating specific preferred embodiments, the terms used herein are intended to easily describe the present invention, limit the meaning of these terms, or limit the scope described in the claims. It is not intended to

The present invention can be variously changed, modified, modified, etc. by those skilled in the art to which the present invention pertains within the scope without departing from the spirit and scope of the invention indicated by the claims according to the above embodiments. Anyone can easily see that it is possible.

Claims

A main body having an inlet pipe through which raw water flows and an outlet pipe through which hot water is discharged;

A coil pipe connected to the inlet pipe, through which raw water is introduced, and having a lower pipe through which the raw water introduced into the main body is discharged;

a heater that firstly indirectly heats the water introduced into the coil pipe and secondarily directly heats the water discharged into the main body to generate hot water;

An instantaneous water heater characterized in that it is configured to include a; steam module that allows hot water to be discharged through the water outlet pipe while hot water vapor generated through the heater flows in when hot water is discharged, and the vapor pressure is lowered when hot water is not discharged. .
According to claim 1,

The steam module further includes a chamber chamber in which steam is introduced when hot water is used, the vacuum breaker is closed and the steam pressure is filled, and the vacuum breaker is opened when the hot water is not used and the steam pressure is released.
According to claim 2,

The chamber chamber has an inlet pipe and a water outlet pipe passing therethrough, and a steam hole is formed in the outlet pipe passing through the chamber chamber to allow steam of hot water to flow into the chamber chamber.
According to claim 2,

The chamber chamber further includes a recovery unit for collecting water generated by steam introduced therein and recovering the collected water to the main body.
According to claim 1,

The steam module further includes a vacuum breaker that closes when steam flows into the chamber and fills the chamber with an appropriate steam pressure, and opens when the steam pressure decreases due to blocking the steam inflow.
According to claim 1,

The main body further includes a separation plate for blocking the flow of raw water discharged from the lower conduit.
According to claim 6,

The separation plate further includes a separation passage formed between inner walls of the main body in a lateral direction of the separation plate so that raw water moves from the second space to the first space.
According to claim 1,

The coil pipe further includes a lower pipe for discharging raw water into the main body using one or more discharge holes formed in a circumferential direction to form a fluid flow pattern of the raw water flowing into the main body.
According to claim 8,

The instantaneous water heater further comprising the lower conduit extending in a circumferential direction inside the second space partitioned by the partition plate.
According to claim 1,

The instantaneous water heater further comprising one or more heaters disposed at regular intervals and having a thickness determined corresponding to a low current or a high current.
According to claim 1,

The main body further includes a sensor member integrally formed with a side for measuring temperature and a side for measuring the presence or absence of water.