KR101614715B1 - A heating system for having the function of efficiency improvement - Google Patents

Abstract

The present invention relates to a heating system and, more specifically, to a heating system having an efficiency improvement function capable of minimizing heat loss and increasing heating efficiency by mixing combustion heat with fluid and supplying the mixture while directly exchanging the heat of a combustion chamber with the heat of the fluid. The heating system comprises: a fluid circulation tank which consists of a first fluid circulation tank and a second fluid circulation tank, has a fluid circulation outlet formed to discharge fluid (heating water) from one side of the first fluid circulation tank, and has a gas outlet formed to discharge gas and bubble from the other side; a heat exchange unit which directly exchanges heat with combustion heat flowing to a combustion heat inlet as fluid supplied from a fluid circulation pump flows into one side of a driving fluid inlet by forming the gas outlet in the outermost side, forming the driving fluid inlet in the internal center of the gas outlet, and forming the combustion heat inlet, in which the combustion chamber of a burner is installed, in the internal center of the driving fluid inlet in order to form a concentric circle shape through the gas outlet formed in the first fluid circulation tank; and an ejector which is connected with an end of the combustion heat inlet of the heat exchange unit and supplies fluid and gas (combustion heat) generated by the combustion chamber to the second fluid circulation tank without emitting the fluid and the gas to the outside.

Description

[0001] The present invention relates to a heating system having an efficiency improving function,

In particular, the present invention relates to a heating system, and more particularly, to a heating system having an efficiency improving function that minimizes heat loss and improves heating efficiency by allowing heat of combustion of a combustor to be directly heat-exchanged with a fluid, .

Generally, boilers are used to generate steam which is heated by heating water (fluid) or other heat (heat medium) by using heat generated by burning fuel such as gas or oil, a heating system such as a boiler is widely used from home to industrial sites or offices.

This heating system uses heat (latent heat) that is discharged by burning the fuel once again, so that high temperature heat discharged into the exhaust gas to maximize the energy efficiency, as well as water vapor contained in the exhaust gas condense into water Which can be recycled as heating and hot water to save energy and reduce greenhouse gas, and the burner is located at the top, and the air that is first heated comes down from top to bottom for a while, It is known that there is a movement to move upward again so that the water flowing in the inside flows from top to bottom once, and once again when it goes up by the natural convection phenomenon.

However, since the conventional heating system indirectly heats the water tank or the heat pipe and transfers the combustion heat to the heating water (heating fluid), the heat efficiency is limited to the conduction heat capacity of the water tank or the heat pipe. There is a problem that the heat efficiency is low due to high heat loss due to high temperature.

In addition, the indirect heat exchange method has a problem that it is impossible to increase the heat efficiency to the conduction heat capacity or more of the heat transfer tube.

In addition, the wide combustion space and the heat transfer surface caused by the indirect heat exchange system have a problem of increasing the size of the system.

Public number 2002-0070831

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a method and an apparatus for heat exchange of a fluid for heating directly with combustion heat of a combustor, And to provide a heating system having an efficiency improving function for achieving a reduction in heating cost by maximizing the heating efficiency.

According to an aspect of the present invention, there is provided a heating system comprising a first fluid circulation tank and a second fluid circulation tank, wherein a fluid circulation path for discharging fluid (heating water) A fluid circulation tank in which an outlet is formed and a gas discharge port for discharging gas and bubbles is formed on the tile side; A gas discharge passage is formed on the outermost side so as to form a concentric circle through a gas discharge port formed in the first fluid circulation tank, a drive fluid inflow path is formed in an inner center of the gas discharge passage, A combustion heat input path is formed in the inner center of the fluid inflow path so that the fluid supplied from the fluid circulation pump flows into one side of the driving fluid inflow path and directly exchanges heat with the combustion heat introduced into the combustion heat inflow path A heat exchange unit; An ejector connected to one end of a combustion heat inflow path of the heat exchanging unit to supply a gas (combustion heat) generated by the fluid and the combustor to the second fluid circulation tank without diverging the heat to the outside; .

And the fluid circulation tank is separated from the first fluid circulation tank by partition walls so as to easily form an internal pressure of the second fluid circulation tank at a predetermined pressure.

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The ejector includes a driving fluid inlet, a gas inlet, a mixing portion, and a diffusion portion. A nozzle is formed in the driving fluid inlet so as to eject the fluid flowing at a high speed.

A temperature sensor for sensing the temperature of the fluid is formed on one side of the second fluid circulation tank, and one side of the temperature sensor is opened and closed to interlock with the sensing operation of the temperature sensor, and the pressure of the second fluid circulation tank is set And a safety valve that is opened to lower the pressure below a predetermined pressure when the pressure exceeds the predetermined pressure.

And a solenoid valve is provided on the tangential side of the second fluid circulation tank to open the fluid to a required temperature when the temperature of the fluid sensed by the temperature sensor reaches the set value.

And the second fluid circulation tank is formed to be smaller than the volume of the first fluid circulation tank.

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As described above, according to the present invention, heat loss can be minimized through the heat exchange unit that directly exchanges the heat of combustion of the combustor with the fluid, and the heat efficiency can be improved, so that the heating cost can be remarkably reduced.

According to the present invention, there is provided a heat exchange apparatus comprising: a heat transfer unit provided additionally to a heat exchanging unit; a plurality of products of combustion such as carbon monoxide, carbon dioxide gas, steam, and sulfur dioxide contained in the combustion gas through an ejector, Thereby minimizing the generation of combustion gas and reducing environmental pollution.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing the overall configuration of a heating system according to a preferred embodiment of the present invention; FIG.
FIG. 2 is a view showing an internal cross-sectional state of the ejector according to the present invention.
FIG. 3 is a view showing a use state of a heating system according to a preferred embodiment of the present invention.
4 is a view schematically showing a state in which a safety valve is opened and a gas and a bubble escape when the second fluid circulation tank according to the present invention is equal to or higher than a set pressure.
5 is a view illustrating a heat exchanger according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of a heating system having an efficiency improving function according to the present invention will be described in more detail with reference to the accompanying drawings.

Hereinafter, the same reference numerals will be used to denote the same or similar elements in all of the following drawings, and repetitive descriptions will be omitted. The following terms are defined in consideration of the functions of the present invention. It should be interpreted as meaning.

1 to 4, the heating system 1000 according to the present invention is generally divided into a fluid circulation tank 100, a heat exchanging unit 200, and an ejector 300.

The fluid circulation tank 100 includes a first fluid circulation tank 110 and a second fluid circulation tank 120. One side of the first fluid circulation tank 110 is connected to a first fluid circulation tank 110 for discharging fluid A fluid circulation outlet 111 is formed, and a gas discharge port 112 for discharging gas and bubbles is formed on the tile side.

Here, the first fluid circulation tank 110 and the second fluid circulation tank 120 may be mutually partitioned to easily form the internal pressure of the second fluid circulation tank 120 to a predetermined pressure. It is preferable that the barrier ribs 130 are formed separately.

That is, when the first fluid circulation tank 110 and the second fluid circulation tank 120 are formed so as to communicate with each other, not only the internal pressure can be easily formed at a predetermined pressure but also a large amount of Since it is not possible to quickly raise the fluid to a heatable temperature, it takes a long time until the heating is started after the start of heating.

In addition, the second fluid circulation tank 120 is formed to be smaller than the volume of the first fluid circulation tank 110 to easily form the internal pressure at a predetermined pressure, and at the same time, It is easy to raise.

A water level sensor 113 is formed on one side of the first fluid circulation tank 110 to sense the level of the fluid and to replenish the fluid when the fluid level is low.

One side of the second fluid circulation tank 120 is provided with a temperature sensor 121 for sensing the temperature of the fluid and a second side of the temperature sensor 121 is connected to one side of the second fluid circulation tank 120, When the temperature is lower than the set value, the safety valve 122 is opened to allow the fluid to flow into the first fluid circulation tank 110 and circulate.

Here, the safety valve 122 is a valve that restricts the maximum pressure applied to prevent damage to devices or pipes as well as being opened or closed to interlock with the sensing operation of the temperature sensor 121, When the pressure of the two fluid circulation tank 120 becomes equal to or higher than the set pressure, it is preferable that the fluid and the gas contained in the fluid are blown to open the valve so as to lower the pressure below the set pressure.

That is, when the pressure of the second fluid circulation tank 120 becomes equal to or higher than the set pressure, the safety valve 122 is opened. At this time, the gas and bubbles contained in the fluid and the fluid in the second fluid circulation tank 120 1 fluid circulation tank 110, the gas and bubbles are discharged to the outside through the gas discharge port 112 to form a set pressure.

When the pressure of the second fluid circulation tank 120 is higher than the set pressure by the unburned gas or water vapor included in the combustion heat generated during the combustion of the burner 400 combustor 410, It is preferable that it is formed so as to be opened to enhance the stability of the facility.

Since the configuration of the safety valve 122 is generally used such as a lever weight type and a spring type, a detailed description thereof will be omitted.

When the temperature of the fluid sensed by the temperature sensor 121 reaches a preset value, the fluid in the second fluid circulation tank 120 is supplied to the other side of the second fluid circulation tank 120 where the heating is required A solenoid valve 123 is opened to open the valve.

In addition, the solenoid valve 123 is preferably formed of a solenoid valve, which automatically closes the valve due to the weight of the flange when the flange is opened and the valve is opened and the electricity is shut off.

The heat exchanging part 200 is formed in a concentric circle shape in the first fluid circulating tank 110 so that the fluid and the heat of combustion are directly heat-exchanged.

That is, the heat exchanging part 200 is formed by concentrating circles (two or more circles having the same center and having different radii) through the gas outlet 112 formed in the first fluid circulating tank 110 A driving fluid inflow path 220 is formed at an inner center of the gas discharging path 230 and an inner center of the driving fluid inflow path 220 is formed at the center of the gas discharging path 230, A combustion heat inflow path 210 is formed.

Here, the one end of the combustion heat inflow path 210 is connected to the one end of the ejector 300, which will be described later, so as to supply the gas (combustion heat) generated by the combustor 410 to the fluid circulation tank 100, A heat exhaust pipe 211 for connection with the gas inlet 320 is formed to connect the ejector 300.

At this time, it is preferable that the connection of the ejector 300 to the combustion heat inflow path 210 is connected through the heat discharge pipe 211, but the ejector 300 may be directly connected if necessary.

The heat exchanging unit 200 having such a configuration is capable of heating the combustion heat generated from the combustor 410 of the burner 400 using a heat source such as an electric heater, a gas burner, and an oil burner to the combustion heat inflow path 210 And is supplied to the second fluid circulation tank 120 through the ejector 300.

The fluid supplied from the separate fluid circulation pump 500 flows into one side of the driving fluid inflow path 220 and is heat-exchanged with the combustion heat flowing into the combustion heat inflow path 210 to be used as the heating water for driving the ejector It gets hot.

At this time, the heat of combustion, which is radiated through the outer wall of the combustor 410, is heat-exchanged with the fluid moving through the driving fluid inflow path 220 and is supplied to the fluid circulation tank 100 through the ejector 300, It is prevented from being exhausted and the heat loss is minimized.

Therefore, unlike the conventional indirect heat exchange system, the heat loss can be minimized and the heat efficiency, that is, the energy efficiency, can be significantly increased.

The ejector 300 is connected to the heat exchanging unit 200 and includes a driving fluid inlet 310 and a gas inlet 320 so as to easily and smoothly supply the fluid and the gas to the second fluid circulating tank 120. A mixing unit 330, and a diffusion unit 340. As shown in FIG.

Here, the driving fluid inlet 310 is coupled to one end of the first fluid conveyance pipe 510 to introduce the fluid (heating water) supplied by the fluid circulation pump 500, And a nozzle 311 is formed to be jetted to the mixing portion 330.

The gas inlet 320 is connected to one end of the heat discharge pipe 211 to introduce gas (combustion heat) generated by the combustor 410 into the inside and directly heat-exchange the fluid with the fluid, (330).

The mixing part 330 is formed between the driving fluid inlet 310 and the gas inlet 320 and the diffusion part 340 so as to discharge the fluid jetted from the nozzle 311 at a high speed and the gas inlet 320 from the gas inlet 320. [ (Large diameter portion) and a small diameter portion (small diameter portion) so that the supplied gas (combustion heat) flows smoothly.

Accordingly, when the fluid and the gas move (flow) through the small diameter portion of the mixing portion 330, the velocity of the fluid increases, so that the pressure is reduced. Therefore, the fluid ejected from the nozzle 311, (Combustion heat) can be more smoothly suctioned and injected.

The diffuser 340 is formed on one side of the small diameter portion and has a diameter larger than that of the small diameter portion. The diffuser 340 diffuses the fluid injected through the nozzle 311 and the fluid injected through the gas inlet 320 The fluid and the gas are sucked smoothly by the negative pressure generated in the flow of the gas, and the pressure is restored to be mixed and discharged into the second fluid circulation tank 120 in a uniform manner.

When the supplied fluid quickly passes through the mixing part 330, the gas ejected from the gas inlet 320 is uniformly mixed with the fluid, and the diffusion part 340 is uniformly mixed with the fluid, It is possible to minimize the heat loss due to the transfer or heat exchange of the fluid, thereby improving the thermal efficiency.

The coupling relationship of the heating system 1000 according to the present invention may be a concentric circle shape through the gas outlet 112 for discharging gas and bubbles formed in the first fluid circulation tank 110 The combustor 410 of the burner 400 is installed in the combustion heat inflow path 210 of the heat exchange unit 200.

A gas (combustion heat) inlet 320 of the ejector 300 is connected to a heat exhaust pipe 211 formed at one end of the combustion heat inflow path 210 and a first fluid transfer pipe 510 ) Are connected to each other.

The diffuser 340 of the ejector 300 is connected to the second fluid circulation tank 120 through the partition 130 separating the first fluid circulation tank 110 and the second fluid circulation tank 120 And is air-tightly installed to supply a fluid as heat-exchanged heating water and a gas as combustion heat.

The other end of the first fluid transfer pipe 510 is connected through a valve 530 of the fluid circulation pump 500.

One end of the second fluid transfer pipe 520 is connected to the valve 530 of the fluid circulation pump 500 and the other end of the second fluid transfer pipe 520 is connected to the first fluid circulation tank 110, As shown in FIG.

One end of a heating pipe 600 is connected to one end of a solenoid valve 123 formed at one side of the second fluid circulation tank 120, The other end is connected to the first fluid circulation tank 110 or to one side of the second fluid transfer pipe 520.

The operation state of the present invention having the above-described structure will now be described.

First, when a separate burner 400 is operated at the time of heating using the heating system according to the present invention, the combustor 410 is operated.

At the same time, the fluid circulation pump 500 is operated and the valve 530 is opened, so that the fluid pressurized and transferred through the first fluid transfer pipe 510 flows into the drive fluid inflow path 220 of the heat exchange unit 200 ≪ / RTI >

At this time, the solenoid valve 123 of the second fluid circulation tank 120 is kept closed (closed).

Next, the fluid flowing into the driving fluid inflow path 220 is heat-exchanged with the combustion heat of the combustor 410 flowing into the combustion heat inflow path 210, so that the fluids are heated to be usable as heating water.

Subsequently, the fluid heated by the heat exchanger and the gas (combustion heat) generated by the operation of the combustor 410 flow into the driving fluid inlet 310 and the gas inlet 320 of the ejector 300, respectively, Is mixed and supplied to the mixing portion 330 by the first fluid circulation tank 311 and then is injected into the second fluid circulation tank 120 through the diffusion portion 340.

At this time, when the fluid and the gas move (flow) through the small diameter portion of the mixing portion 330, the suction force is generated by the pressure that decelerates as the flow speed is increased, so that the combustion heat as the gas is easily sucked and mixed with the heating water, Thereby minimizing the loss of combustion heat.

The fluid (heating water) and the gas (combustion heat) supplied to the second fluid circulation tank 120 are supplied to the heating pipe 600 to be heated or supplied to the first fluid circulation tank 110, .

When the temperature detected by the temperature sensor 121 is lower than the set value for heating, the fluid (heating water) supplied to the second fluid circulation tank 120 together with the gas (combustion heat) Through the second fluid conveyance pipe 520, the fluid circulation pump 500 and the first fluid conveyance pipe 510, the fluid (heating water) is introduced into the first fluid circulation tank 110, And then circulated to the second fluid circulation tank 120 through the driving fluid inflow path 220 and the ejector 300. [

At this time, when the temperature of the fluid sensed by the temperature sensor 121 is equal to or higher than the set value for heating, the solenoid valve 123 is opened and the fluid is supplied to the heating pipe 600, so that the heating proceeds.

Accordingly, the heating system according to the present invention can continuously improve the heat efficiency by minimizing the heat loss due to the transfer of the fluid or the heat exchange by continuously repeating such action.

5 is a cross-sectional view showing another embodiment of the heat exchanging unit according to the present invention. The heat exchanging unit 240 is formed in the heat exchanging unit 200 so that the heat of combustion at the central portion of the combustor 410 is transferred to the gas exhaust port 112 So as to minimize the environmental pollution and heat exchange is performed inside and outside the fluid flowing through the driving fluid inflow path 220, thereby further improving the thermal efficiency.

The heat transfer unit 240 may be formed to penetrate the heat exchange unit 200 in the lateral direction so that the heat of combustion at the central portion of the combustor is more smoothly transferred to the gas discharge port 112.

However, the heat transfer means 240 is not limited to this, and may be formed in various forms and structures as long as heat can be efficiently transferred to the gas discharge port 112 to re-burn unburnt gas.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. And will be apparent to those skilled in the art to which the invention pertains.

1000: Heating system 100: Fluid circulation tank
110: first fluid circulation tank 111: fluid circulation outlet
112: gas outlet 113: water level sensor
120: second fluid circulation tank 121: temperature sensor
122: Safety valve 123: Solenoid valve
130: barrier rib 200: heat exchange part
210: Combustion heat inflow path 211: Heat dissipation tube
220: driving fluid inflow path 230: gas exhaust path
240: heat transfer means 300: ejector
310: drive fluid inlet 311: nozzle
320: gas inlet port 330: mixing section
340: diffusion part 400: burner
410: combustor 500: fluid circulation pump
510: first fluid delivery pipe 520: second fluid delivery pipe
530: valve 600: heating pipe

Claims (8)

In a heating system,
A fluid circulation outlet for discharging fluid (heating water) is formed on one side of the first fluid circulation tank, and a fluid circulation outlet for discharging the fluid (heating water) is formed on one side of the first fluid circulation tank, A fluid circulation tank in which a gas outlet is formed;
A gas discharge passage is formed on the outermost side so as to form a concentric circle through a gas discharge port formed in the first fluid circulation tank, a drive fluid inflow path is formed in an inner center of the gas discharge passage, A combustion heat input path is formed in the inner center of the fluid inflow path so that the fluid supplied from the fluid circulation pump flows into one side of the driving fluid inflow path and directly exchanges heat with the combustion heat introduced into the combustion heat inflow path A heat exchange unit;
An ejector connected to one end of a combustion heat inflow path of the heat exchanging unit to supply a gas (combustion heat) generated by the fluid and the combustor to the second fluid circulation tank without diverging the heat to the outside; And a heating system having an efficiency improving function. The method according to claim 1,
Wherein the fluid circulation tank is separated from the first fluid circulation tank by partition walls in order to easily form the internal pressure of the second fluid circulation tank at a predetermined pressure. delete The method according to claim 1,
Wherein the ejector includes a driving fluid inlet, a gas inlet, a mixing portion, and a diffusion portion, and a nozzle is formed in the driving fluid inlet so as to eject the fluid flowing at a high speed. Heating system. The method according to claim 1,
A temperature sensor for sensing the temperature of the fluid is formed on one side of the second fluid circulation tank, and one side of the temperature sensor is opened and closed to interlock with the sensing operation of the temperature sensor, and the pressure of the second fluid circulation tank is set And a safety valve that is opened to lower the pressure below the set pressure when the pressure exceeds the predetermined value. The method according to claim 1,
And a solenoid valve is provided on the other side of the second fluid circulation tank, the solenoid valve being opened to supply the fluid to a place where heating is required when the temperature of the fluid sensed by the temperature sensor reaches a set value. Heating system. The method according to claim 1,
And the second fluid circulation tank is formed to be smaller than the volume of the first fluid circulation tank. delete

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