KR200184809Y1 - Nopressure tube boiler - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a pressureless irrigation boiler, which includes a gas burner, a combustion chamber, a liquid chamber, a rear combustion chamber, a rear combustion chamber, a hot water heat exchanger, a heat exchanger for ninbang, a circulation pump, an expansion tank, an exhaust port, and other auxiliary devices. The conventional non-pressure irrigation-type boiler is equipped with a high-efficiency blower in the boiler trailing smoke flue, and relates to a pressure-free irrigation type boiler which can prevent energy saving and environmental pollution by improving the heat efficiency of the boiler and the thermal efficiency.

2. The technical problem the invention is trying to solve

In case of using a conventional pressureless irrigation boiler, the sensible and latent heat of water vapor contained in the combustion gas is not completely absorbed, and the atmospheric discharge temperature of the combustion gas is discharged at a high temperature of 230 ° C. or higher, thereby improving the thermal efficiency of the pressureless irrigation boiler. There is a problem that has a big impact on the environmental problems due to the failure to purify the CO ₂ and NOx, which are low and also harmful substances contained in the combustion gas.

3. Paper of solution of design

It is solved by the present invention, which is constructed by mounting a high-efficiency cutlery on the boiler afterburner in a conventional pressureless irrigation boiler.

4. Important uses of the devise

When the high-efficiency coal-fired boiler is installed in the tail smoke of the conventional pressureless boiler, the thermal efficiency of the pressureless boiler is improved to 99-106% by almost absorbing the sensible and latent heat of the water vapor contained in the combustion gas. It can save more than 10% energy according to boiler thermal efficiency, and also has an excellent effect to reduce the amount of CO ₂ and NOx, harmful substances contained in combustion gas, to 2% and 20PPM, respectively.

Description

Pressureless Irrigation Condensing Boiler with Spiral Tube Crusher (NOPRESSURE TUBE BOILER)

The present invention relates to a pressureless irrigation type condensing boiler having a spherical tube economizer in the rear combustion year of the boiler.

Commonly used boilers include the use of pipes and furnaces together, which belong to labor-pipe boilers with pipes and forced circulation boilers, also called forced perfusion boilers, and pump water from one end of a long pipe to a pump. In the middle of the process, the heating, evaporation, and overheating are carried out to the superheater to the other end of the tube, and the evaporation heat-transfer surface of the boiler is formed of a plurality of small diameter (30-100 mm) water pipes. A water pipe boiler is used to heat the observation water outside the tube, and a vacuum is produced inside the boiler by applying the principle of boiling and evaporating water at a temperature lower than 100 ° C. in a vacuum state. Pressureless pipe that is heated to a temperature below the boiling point while the water in the heater maintained circulates up and down inside the liquid chamber as the burner burns. A formula boiler is used.

Such boilers are not capable of achieving more than 89-96% of thermal efficiency, and the combustion gas of a high temperature of 230 ℃ is discharged through the exhaust port.

In addition, the high calorific value is 10500Kcal, the low calorific value is 9550Kcal, the general calorific value is based on the low calorific value, and the heat efficiency of the boiler is usually 89-96% of the low calorific value.

In the industrial boiler using gas fuel, a large amount of CO ₂ , NOx, and N ₂ are generated from the combustion chamber, and the NOx formed during the combustion process is found to be the main cause of photochemical smog. Emissions are strictly regulated.

Therefore, in the process of converting chemical energy into thermal energy by combustion, complete combustion is a basic requirement of the industrial boiler, and in addition, CO ₂ , NOx to some extent without departing from the standard of the maximum content of unburnt in the combustion gas. The possibility of reducing power consumption has emerged as an important factor in determining the performance of industrial boilers.

Conventional pressureless irrigation condensing boiler is composed of a gas burner, combustion chamber, liquid chamber, rear combustion chamber, rear combustion chamber, hot water heat exchanger, heating heat exchanger, circulation pump, expansion tank, exhaust port, and other auxiliary devices.

City gas is burned in the combustion chamber in which the gas burner is mounted, and heat is transferred to the irrigation water. The irrigation water is circulated up and down, and is heated to a temperature below the boiling point. Forced circulation to the heat exchanger. The water passed through the heating gas and the hot water flowing through the inside of the hot water supply heat exchanger and heating heat exchanger for heating and hot water for heating, and the combustion gas generated together with heat by burning the city gas as fuel in the combustion chamber is the combustion chamber It is discharged to the atmosphere through the exhaust port through the water pipe arranged in the rear stage and the trailing smoke flue.

At this time, the temperature of the combustion gas discharged to the atmosphere is a high temperature of 230 ℃ or more, since the water vapor contained in the combustion gas is discharged through the exhaust port as it is, the thermal efficiency of the boiler is about 89-96%, and also included in the combustion gas The harmful substances CO ₂ and NOx are emitted without being purified, so there was a problem affecting the environmental problems.

Therefore, the object of the present invention is to absorb the sensible and latent heat of water vapor contained in the combustion gas to increase the thermal efficiency of the boiler to 99-106%, and also to reduce CO ₃ and NOx, which are harmful substances in the combustion gas. It is to provide a pressureless irrigation condensing boiler equipped with a spiral tube cutter to prevent environmental pollution.

In order to achieve this purpose, a pressureless tube composed of a gas burner, a combustion chamber, a liquid chamber, a rear combustion chamber, a rear combustion year, a hot water heat exchanger, a heating heat exchanger, a circulation pump, an expansion pump, an exhaust port, and other auxiliary devices are installed in the boiler body. In the modified condensing boiler, it can be achieved by the present invention equipped with a spiral tube cutter in the rear combustion flue, and a magnesium neutralizing device, will be described in detail with reference to the accompanying drawings.

1 is a schematic view of a pressureless irrigation condensing boiler according to the present invention.

2 is a perspective view showing a spiral tube of the coal mill shown in FIG.

3 is a schematic view of a spiral tube with a pin according to the present invention.

4 is a schematic diagram of another magnesium neutralizer according to the present invention.

* Explanation of symbols for the main parts of the drawings

1: boiler body 2: gas burner

3: combustion chamber 4: liquid chamber

5: fruit water pipe 6: posterior core

7: Rear combustion year 8: Heat exchanger for hot water supply

9: heating exchanger 10: spiral tube cutting machine

11: Spiral Tube 14: Pin

17: exhaust port 18: magnesium neutralizing device

19: water condenser 20: magnesium container

21: drain pipe 22: magnesium

Referring to FIG. 1, in the pressureless irrigation condensing boiler having a spiral tube cutter according to the present invention, a gas burner 2 and a combustion chamber 3 are disposed at a lower end of a boiler, and a liquid chamber (3) is disposed around the combustion chamber 3. 4) is positioned, the hot water supply heat exchanger (8) and the heating heat exchanger (9) is installed above the liquid chamber (4), the water supply (a) in the liquid chamber (4) for the hot water heat exchanger (8) and heat exchange for heating A circulation pump forcibly circulating to the air (9) and an expansion tank for preventing the pressure from changing with the temperature level of the irrigation water (a) and maintaining the pressureless state at atmospheric pressure, the combustion chamber (3) A water pipe 5, a rear combustion chamber 6, a rear combustion flue 7 and an exhaust port 17 are sequentially arranged at a rear end thereof, and a spiral tube cutting machine made of stainless steel (SUS 316) in the rear combustion flue 7 ( 10) is mounted, the magnesium neutralizing device (18) is provided in the spiral tube breaker (10) Axis are connected by a water pipe (19).

Referring to FIG. 2, FIG. 2 shows a spiral tube 11 embedded in the spiral tube cutter 10. In the spiral tube 11 according to the present invention, the heat transfer surface where the heat exchange between the combustion gas and the cold water occurs is spirally twisted to be larger than the heat transfer area of the conventional coal mill, which is about twice the volume of the coal mill installed in the conventional vacuum boiler. It has a heat transfer effect.

Therefore, when the cold water is passed into the spiral tube 11, the cold water in the spiral tube 11 and the combustion gas passing through the spiral tube cutter 10 undergo heat exchange through the spiral tube 11. At this time, the cold water absorbs the latent condensation and sensible heat of the submersible included in the combustion gas, so that the combustion gas drops below the dew point of about 90-40 ° C. and passes through the spiral tube pelletizer 10 before the exhaust port 17 (See Figure 1) to the atmosphere.

As such, the cold water of the spiral tube 11 absorbs about 10% of sensible heat and latent heat of steam, thereby improving the thermal efficiency of the pressureless irrigation condensing boiler according to the present invention to 99-106%. In particular, the thermal efficiency of the pressureless irrigation condensing boiler according to the present invention when the temperature of the combustion gas is discharged to about 90 ℃ is about 99%, when the discharge efficiency is about 106%.

In addition, as shown in FIG. 3, the fin 14 may be attached to the spiral tube 11 according to the present invention in order to increase the heat exchange efficiency. The pin 14 may be selected according to the specifications of the boiler.

Referring to FIG. 4, FIG. 4 shows the magnesium neutralizer 18 shown in FIG. 1 in more detail. The magnesium neutralizing device 18 is for purifying the waste water condensed with the water vapor of the combustion gas by heat exchange in the spiral tube breaker 10, the magnesium container 20 for neutralizing the spiral tube breaker 10 and the condensed water. ) Is connected by the condensate pipe 19, and a drain pipe 21 for discharging the wastewater neutralized in the magnesium container 20 to the river is installed under the magnesium container 20.

The magnesium container 20 of the magnesium neutralizing device 18 configured as described above has a size of about 40 L. When the magnesium 22 is melted, magnesium is supplied by a predetermined amount. The reaction equation where H ₂ CO ₃ and NHO ₃ in the condensed wastewater is neutralized by magnesium is as follows.

H ₂ CO ₃ + MG → MgCO ₃ + 2H ⁺

(Magnesium Carbonate)

HNO ₃ + Mg → MgNO ₃ + 2H ⁺

(Magnesium Nitrite)

As described above, HCO ₃ and HNO ₃ react with magnesium 22 to neutralize the wastewater and discharge into the river. At this time, the magnesium 22 in the magnesium container 20 is melted while changing to MgCO ₃ , MgNO ₃ .

The pressureless irrigation condensing boiler with spiral tube cutter according to the present invention has a thermal efficiency of about 99-106% based on low half heat, and about 89-96% of heat based on high calorific value. Efficiency occurs.

In addition, the pressureless irrigation condensing boiler of the present invention uses fuel as a city gas, and unlike coal and oil, there is no sulfur (S) component that corrodes metal under dew point, and it is always completely burned soot. It is not generated and condensate is generated on the heat transfer surface when the temperature of the combustion gas passing through the spiral tube cutter falls below the dew point, and the condensate is discharged into the stream by neutralizing it to the environmental standard PH 6.5-7 by the magnesium neutralizer. This reduces and has an excellent effect on environmental protection.

Accordingly, the use of the pressureless irrigation condensing boiler of the present invention is used in high-rise buildings (100m), homes, bathrooms, sports center pools, and the like.

Claims (2)

A gas burner 2 and a combustion chamber 3 are disposed at the lower front of the boiler, and a liquid chamber 4 is positioned around the combustion chamber 3, and a quick heat exchanger 8 and a heat exchanger for heating are located above the liquid chamber 4. (9) is installed, which is changed in accordance with the temperature change of the circulating pump and the water (a) forcibly circulating the water in the liquid chamber (4) to the hot water supply heat exchanger (8) and the heat exchanger (9) for heating. An expansion tank is provided to prevent the pressure from being changed along with the water level and to maintain the pressureless state at atmospheric pressure. A water pipe 5, a rear combustion chamber 6, a rear combustion chamber 7 and an exhaust port are provided at the rear end of the combustion chamber 3. In the pressureless irrigation type condensing boiler in which 17) is arranged in sequence, a spiral tube cutter 10 made of stainless steel is mounted on the rear combustion flue 7 so that the cold water in the spiral tube 11 is contained in the combustion gas. Combustion gas is lower than the dew point by mixing the latent heat of condensation A pressureless irrigation type condensing boiler having a spiral tube cutter, characterized in that discharged to a temperature, the spiral tube cutter (10) is connected to the magnesium neutralizer (18) by a condensate tube (19). According to claim 1, wherein the magnesium neutralizer 18 is a magnesium container 20 for neutralizing the condensed water of the spiral tube cutter 10 is connected to the spiral tube cutter 10 by the condensate tube 19, Spiral tube characterized in that the drain pipe 21 for discharging the waste water neutralized in the magnesium container 20 to the stream is installed in the lower portion of the magnesium container 20 to neutralize and discharge the waste water to the environmental standard PH 6.5-7 Pressureless irrigation condensing boiler with a blower.