KR20040071541A - A vaporizer using steam and heating - Google Patents

Abstract

PURPOSE: A heating vaporizer, making use of steam is provided to maximize the heat transfer area, with a small quantity of water and to quickly vaporize a large quantity of liquefied gas, by heating liquefied gas through evaporation of water. CONSTITUTION: A heating vaporizer, making use of steam receives liquefied gas, vaporizes the liquefied gas into gaseous gas, and exhausts the gaseous gas. The heating vaporizer comprises an outer receptacle(1), an inner receptacle(3), a heater(5), and a heat transfer water(7). A supply line(9) through which liquefied gas flows in and an exhaust line(11) through which gaseous gas flows out are connected to the outer receptacle. The inner receptacle is installed inside the outer receptacle. A first space(13), in which the liquefied gas incoming is stored and vaporized, is formed in the inner receptacle. The inner vaporize has a closed second space(15) inside. The heater is installed in the second space. The heat transfer water is heated by the heater in the second space and is vaporized. The vaporized steam comes in contact with the inner wall of the inner receptacle and vaporizes the liquefied gas stored in the first space.

Description

A vaporizer using steam and heating

The present invention relates to a carburetor, in particular safe without fear of fire and explosion, despite the indirect heating method by the electric heater can quickly vaporize a large amount of liquefied gas, installed by maximizing the heat transfer area for the unit space The present invention relates to a vaporizer that uses steam suitable for heating a compact product with a minimum of space.

In general, a vaporizer is a device that converts liquefied gas into gaseous gas that can be used at a gas consumer by using a heat medium, and a natural vaporizer and a heat medium for heating the liquefied gas by using ambient temperature are forced to contact the liquefied gas. It is largely classified as a forced vaporizer, and a natural vaporizer is mainly used as a forced vaporizer since a sufficient heat transfer is not performed in cold weather.

Recently, an electric vaporizer capable of stably supplying heat to the heat medium and easily controlling the temperature of the forced vaporizer is widely used, and the electric vaporizer is classified into a water tank and a dry type.

Here, the water tank type is the most basic type of vaporizer, and typically, the water of the tank stored in the tank so that the liquefied gas surrounds the heat exchanger coil flowing therein is heated by an electric heater, and the liquefied gas is forced by using the heat of the heated water. It is a way to vaporize.

Such a tank vaporizer is convenient because it can easily adjust the temperature by sensing the water temperature of the tank.

On the other hand, the dry method is to form the electric heater together with the aluminum casting and to install a thermocouple in the casting to control the temperature to vaporize the liquefied gas directly in contact with the aluminum casting.

The dry type has the advantage of reducing the size of the carburetor because it is not necessary to store water, and is convenient to install in a narrow place and convenient to transport, but the risk of fire and explosion because liquefied gas is almost directly in contact with a high temperature electric heater. This has a big disadvantage.

Hereinafter, a description will be given of a water tank type which is safer and widely used than the dry type of the conventional electric vaporizer.

Thus, Figure 1 is a block diagram showing the configuration of a water tank type of a conventional electric vaporizer.

As shown in the drawing, a conventional water vaporizer has a main body 101, a heat exchanger coil 103 installed in the main body and liquefied gas flowing therein, water 105 filled in the main body, and the main body 101. And an electric heater 107 installed therein to heat the water 105.

In such a configuration, when the water 105 filled in the main body is heated by using the electric heater 107, the heated water 105 heats in contact with the heat exchanger coil 103. The liquefied gas flowing inside is heated.

As a result, the liquefied gas flowing through the heat exchanger coil 103 can be vaporized with gas gas.

However, the conventional water vaporizer has a lower risk of fire and explosion than the dry type in which the electric heater 107 and the liquefied gas are directly indirectly heated using water 105 as a heat transfer medium. Due to the nature of 105), many problems occurred.

That is, there is a limit in the rising temperature, the specific heat is high, the rate of temperature rise is also slow, there is a problem that it is difficult to vaporize a large amount of liquefied gas quickly.

In addition, since a large amount of water 105 must be secured in order to vaporize more than a certain amount of liquefied gas, there is a problem in that the size and load of the product are considerably larger than the vaporization capacity.

On the other hand, in the structure of the conventional vaporizer, the electric heater 107 is not completely isolated from the gas, so that the water level of the water 105 is lowered and the electric heater 107 is exposed to the water 105 outside the hot electric heater 107 is instantaneous. There was a high risk of explosion when in contact with the liquefied gas or gas gas.

Accordingly, the present invention has been proposed to solve the above conventional problems, and an object of the present invention is to maximize the heat transfer area by only a small amount by evaporating water to heat the liquefied gas, and quickly vaporize a large amount of liquefied gas. It is to provide a vaporizer that uses steam that can be heated.

In addition, another object of the present invention is to provide a vaporizer that is heated by using a steam that removes the risk of fire and explosion by completely blocking the high temperature heater from the gas and at the same time prevent the high heat emitted from the heater to be transferred directly to the gas. There is.

1 is a block diagram showing the configuration of a water tank type of a conventional electric vaporizer.

Figure 2 is a state of use of the vaporizer to heat using the steam of the present invention.

3 is a cross-sectional view showing the configuration of a vaporizer to be heated using the steam of the present invention.

4 is a reference diagram for explaining an operating state of FIG. 3.

* Description of the symbols for the main parts of the drawings *

1: external container 3: internal container

5: heater 7: heat transfer

9: supply line 11: discharge line

13: first space 15: second space

In order to achieve the above object, a vaporizer that is heated using steam according to the technical idea of the present invention is a vaporizer which is supplied with liquefied gas and vaporized and discharged into gaseous gas, and a supply line and gaseous gas into which liquefied gas is introduced. An outer container to which the discharge line to be discharged is connected, and a first space spaced apart from each other by being installed at a predetermined interval inside the outer container to store and vaporize the liquefied gas introduced therein; The inner container having a gas, the heater installed in the second space, and the liquefied gas stored in the first space in contact with the inner wall of the inner container is evaporated and vaporized by the heater heated in the second space It is characterized by the technical configuration that is configured to include a heat transfer number to vaporize.

Here, the heat transfer water is preferably present in the second space in an amount that is all evaporated by the heater to fill the second space.

In addition, the second space is preferably sealed in a vacuum state.

The apparatus may further include measuring means for measuring the pressure in the second space, and decompression means for reducing the pressure in the second space.

Hereinafter, an embodiment according to the spirit of the present invention as described above will be described in detail with reference to the accompanying drawings.

2 is a state diagram of use of the vaporizer to heat using the steam of the present invention.

As shown, the vaporizer 100 for heating by using the steam of the present invention is connected to the gas supply destination and the supply line (9) where a plurality of gas containers are collected, the liquefied gas is supplied, the gas supplied liquefied gas It is vaporized and discharged into gas.

The gas gas vaporized and discharged from the present invention is transferred through the discharge line 11 connected to the gas consumer.

Here, the vaporizer 100 for heating by using the steam of the present invention vaporizes the liquefied gas with a high heat transfer efficiency in a state where the heat transfer area for the unit space is maximized, so that even indirect heating method using a heater, a large amount of vaporization Can be easily implemented, and the overall size can be significantly reduced.

In addition, the high temperature heater is completely blocked from the gas and at the same time, the high heat emitted from the heater is not directly transmitted to the gas, thereby fundamentally eliminating the risk of fire and explosion.

Therefore, the structure of the vaporizer | carburetor 100 heated using the steam of this invention is demonstrated in detail.

3 is a cross-sectional view showing the configuration of a vaporizer to be heated using the steam of the present invention, Figure 4 is a reference diagram for explaining the operating state of FIG.

As shown in the drawing, the outer container 1, the inner container 3, the heater 5, and the heat transfer water 7 filled in the inner container are configured.

Here, the outer container 1 is connected to a supply line 9 through which liquefied gas flows and a discharge line 11 through which gas gas flows out.

Thus, the liquefied gas is supplied to the outer container 1, the gas gas vaporized liquefied gas is transferred to the gas consumer through the discharge line (11).

Here, an outlet 23 connected to the discharge line 11 is formed in the upper portion of the outer container 1 so that the gas gas vaporized by the liquefied gas rises and flows out.

In addition, the liquid outflow prevention device 25 is installed in the upper portion of the outer container 1 to prevent an accident that the liquefied gas does not vaporize and rises abnormally to the outlet 23.

Here, the liquid leakage prevention device 25 is normally connected to the float ball rising by the liquefied gas filling and the closing disk for closing the discharge port 23 when the liquid level is higher than a predetermined liquid level, etc. It can be configured as a detailed description thereof will be omitted.

In addition, the inner container 3 is installed inside the outer container 1 at predetermined intervals to form a first space 13 between the inner side of the outer container 1 and the outer side of the inner container 3. .

Here, the first space 13 is utilized as a space that is heated while staying for a predetermined time to liquefy the gas.

In addition, the inner container 3 has a second space 15 sealed therein.

Here, the outer container (1) and the inner container (3) is the lower portion of each is tightly coupled by the flange 29, the coupling portion for the sealing of the first space 13 and the second space (15) It is sealed by a sealing member.

In addition, the inner container (3) is made of a material capable of withstanding a certain pressure or more by a constant vapor pressure, and having corrosion resistance and heat resistance to the gas and the heat transfer water (7).

Here, the material of the inner container 3 may be made of a material such as stainless steel having a certain strength or more and having excellent corrosion resistance and heat resistance, and other materials may be used as long as the above conditions are satisfied.

In addition, the heater 5 is installed in the second space 15 of the inner container 3.

As such, when the heater 5 is installed in the enclosed second space 15, the liquefied gas or vaporized gas gas may be directly prevented from being exploded by contacting the heater 5 itself, which forms a high temperature heat surface. Will be.

In addition, the heat transfer water 7 is configured to be filled in the second space 15 to exist in a predetermined amount.

According to this configuration, when the heat transfer water 7 is heated by the heater 5, the heat transfer water 7 is evaporated in the second space 15 and filled in the second space 15, and is formed on the inner wall of the inner container 3. Contact.

As a result, the heat transfer water 7 may transfer the heat generated from the heater 5 to the inner container 3 in the form of evaporated vapor, and at this time, the inner container 3 in the first space 13. Heat of the heater 5 is transferred to the liquefied gas in contact with the wall to vaporize the liquefied gas.

As such, when the heat transfer water 7 is configured to vaporize the liquefied gas by using evaporated steam, the steam rises to a temperature much higher than hot water, and the movement of molecules is very active, so that the heat of the heater 5 is increased. It can be delivered to the liquefied gas at a high speed to enable faster vaporization.

Of course, at this time, the temperature of the steam is formed much higher than the hot water, even though the liquefied gas vaporizes quickly, so that the gas is far below the high temperature to explode, there is no fear of fire. Rather, the steam disperses while the high heat emitted from the heater 5 reaches the liquefied gas and serves to lower the temperature to the risk of fire and explosion.

Here, the substantial heat transfer area of the present invention corresponds to the outer surface of the inner container 3 in which liquefied gas and vaporized gas gas directly contact each other, and a large heat transfer area can be ensured even with a small installation space.

In addition, since the vaporized vapor is used, even a small amount of heat transfer water 7 can smoothly heat transfer to a temperature sufficient for a large heat transfer area.

Thus, the conventional tank carburetor can solve the problem that the volume and the load is large, because a large amount of water for securing a sufficient amount of heat transfer.

In addition, the heat transfer water 7 is present in the second space 15 in an amount that is completely evaporated by the heater 5 to completely fill the second space 15.

By such a configuration, when all of the heat transfer water 7 is evaporated, only the steam having good heat transfer efficiency is present in the second space 15, and heat generated by the heater 5 is stored in the inner container 3. ) Can be delivered to the liquefied gas more smoothly.

Here, the amount of heat transfer water (7) is that the steam filling the second space (15) is filled with a degree of saturation or slightly lower than the saturation state in a state where all of the heat transfer water (7) evaporated without leaving any desirable.

This is to prevent the phenomenon that the heat transfer water 7 is not saturated in the second space 15 and is not saturated, so that the evaporation does not occur smoothly.

Of course, the saturation of the steam is appropriately adjusted to vaporize the liquefied gas in consideration of the pressure and temperature of the second space 15, which is suitably set.

In addition, the second space 15 is sealed in a vacuum state.

As such, when the second space 15 is sealed in a vacuum state, evaporation of the heat transfer water 7 occurs actively even when the temperature is not high immediately after the heater 5 is operated, and also particles of vaporized vapor In addition, it becomes possible to exercise actively, there is an effect that the speed of heating the liquefied gas is dramatically improved.

However, the vacuum state means a state of 0 kg / ㎠ or less.

In addition, the present invention further includes measuring means for measuring the pressure in the second space 15 and pressure-reducing means for reducing the pressure in the second space 15.

Here, the measuring means for displaying the pressure value measured by the pressure measuring body and the pressure measuring body (not shown) installed in the second space 15 so as to measure the pressure in the second space 15 to the outside. A pressure gauge consisting of a combination of pressure indicators 17 is used.

Here, the pressure gauge is a marrow gauge, pyranage gauge, ionization vacuum system suitable for measuring pressures lower than atmospheric pressure based on the change in the thermal conductivity and the ion conductivity of the gas according to the pressure change. Various types of pressure gauges, such as air chambers, can be used.

In addition, the decompression means may be provided with a vacuum pump 21 in communication with the second space (15).

As a result, the pressure of the second space 15 can be measured in real time by the measuring means, and when the pressure is required in the second space 15, the pressure of the second space 15 is reduced by using the decompression means. The pressure can be reduced.

In this case, when the vacuum pump 21 is installed, an opening / closing valve 27 for blocking the second space 15 from the outside is installed in the pipe where the second space 15 and the vacuum pump 21 communicate with each other. It is desirable to be.

Thus, when the vacuum pump 21 is operated to depressurize the second space 15, the on / off valve 27 is opened. After the operation of the vacuum pump 21 is stopped, the on / off valve 27 is operated. ) Can be closed to completely seal the second space 15.

In this case, the check valve may be replaced with the check valve 27.

In addition, the gas and the gas into the second space 15 in preparation for refilling the heat transfer water 7 filled in the second space 15 and when the second space 15 is decompressed more than necessary. It is preferable to further include an inlet / outlet valve 19 capable of letting in and out of liquid.

However, it is preferable that the vacuum pump is provided in the factory and the after-service vehicle without actually being installed in the vaporizer itself due to the volume, load and installation cost.

The vacuum pump provided in this way is used to depressurize and vacuum the second space in the initial setting of the carburetor for product shipment from the factory, and to depressurize the second space again when the vacuum state of the second space is broken during the use of the vaporizer. Used.

Referring to the accompanying drawings, the operation of the vaporizer to heat using the steam according to the present invention configured as described in detail as follows.

First, the operation for the initial setting of the present invention will be described.

To this end, the inlet and outlet valves 19 are opened to fill the heat transfer water 7 into the second space 15 formed in the inner container 3.

At this time, the amount of the heat transfer water 7 is appropriate enough to completely fill the second space 15 in the vapor state when all the evaporation.

Thereafter, when the inlet / outlet valve 19 is closed and the open / close valve 27 is opened, the second space 15 communicates with the vacuum pump 21.

Then, the vacuum pump 21 is operated to slowly depressurize the second space 15.

At this time, when it is confirmed that the pressure indicator 17 indicates the vacuum state by 0 kg / cm 2, the operation of the vacuum pump 21 is stopped, and the opening / closing valve 27 is closed.

As a result, the second space 15 is sealed in a vacuum state.

When the initial setting of the present invention is completed as described above, the supply line 9 is opened to receive liquefied gas and at the same time, power is applied to the heater 5 installed in the first space 13.

Then, liquefied gas flows into and fills the first space 13 formed in the outer container 1.

In addition, the heat transfer water 7 is rapidly evaporated and filled in the second space 15 in the second space 15 in a vacuum while the heater 5 discharges heat.

Thereafter, when the temperature of the vapor evaporated in the second space 15 rises to about 120 ° C., the heater 5 is adjusted to maintain the state.

When the vaporized vapor temperature rises, the liquefied gas stored in the first space 13 is heated at a high speed through the wall of the inner container 3 in contact with the vapor.

As such, when the liquefied gas is heated by the steam in the second space 15, the liquefied gas that has filled up the first space 13 is actively vaporized, and the vaporized gas gas rises while the external container 1 rises. Out).

The preferred embodiment of the present invention has been described above. The present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

As described above, the vaporizer vaporized by using the steam according to the present invention prevents the heater directly exposed to the gas, while heating the liquefied gas by the steam does not rise to the explosive temperature fire and explosion There is no effect of concern.

In addition, the heat transfer area is maximized with respect to the same installation space has the effect that can significantly reduce the size of the product compared to the conventional vaporizer having the same vaporization capacity.

In addition, the heat transfer area is maximized as described above, and since it utilizes the characteristics of steam having a high temperature and fast heat transfer rate as compared with hot water, it is possible to vaporize a large amount of liquefied gas quickly, and thus small, medium, large and super large. There is an effect that can be applied to both carbs.

Claims (4)

A vaporizer that receives liquefied gas and vaporizes it into gaseous gas and discharges it. An external container to which a supply line into which liquefied gas is introduced and a discharge line into which gaseous gas is discharged are connected; An inner container having a spaced first space in which the liquefied gas that is installed and spaced apart from the inside of the outer container is stored and vaporized, and has a predetermined second space sealed therein; A heater installed in the second space; The vapor heated and evaporated and evaporated by the heater in the second space is heated by using a vapor including heat transfer water which contacts the inner wall of the inner container to vaporize the liquefied gas stored in the first space. carburetor. The method of claim 1, Wherein the heat transfer water is all evaporated by the heater to exist in the second space in an amount to fill the second space. The method of claim 1, The second vaporizer is heated using a vapor, characterized in that the vacuum is sealed. The method of claim 1, Measuring means for measuring a pressure in the second space; A vaporizer for heating with steam further comprising a pressure reducing means for reducing the pressure in the second space.