JPS5827242Y2 - LPG vaporizer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for fuel conversion in various LPG burning devices such as thermal power plants.

Hot water or steam is used as a heat source to vaporize low-temperature LPG, but since the LPG that is the object to be heated is at a low temperature, there is a risk that the fluid serving as the heat source may freeze. .

In order to eliminate this freezing, the object to be heated can be heated once using o'ct and then heated again to evaporate it.
An object of the present invention is to provide an apparatus that efficiently heats the object to be heated using o'ct.

Conventionally, in order to prevent the above-mentioned freezing, there have been the following devices that prevent direct contact between low-temperature LPG and steam or hot water.

(4) As shown in Figure 1, a reboiler C has a plurality of shelves a inside and supplies a hot water bath to the bottom for heating.
A plated gas-liquid direct contact heat exchange tower f is provided, which introduces low-temperature LPGd into the upper part of the shelf a from the side and takes out room-temperature LPGe from the top.

In this device, room temperature LPG accumulated in reboiler C
is vaporized by heating it with hot water and rising in the tower f, while the low temperature LPG d introduced from the upper part of the tower f is lowered between the shelves a and heated by the rising LP gas.

Therefore, in this equipment, low-temperature LPGd is added to the beam boiler.
is not reached.

(B) As shown in Fig. 2, butane g is sealed inside, and a device for heating the butane g by passing hot water bt is provided in the lower part, and low temperature LPGd is introduced in the upper part to heat the room temperature LPGe.
An indirect heat medium type heat exchanger is provided.

In this device, butane g is evaporated by hot water, and the evaporated butane gas heats the low temperature LPGd in the upper part and liquefies it again.

The hot water bath is therefore prevented from coming into contact with the low temperature LPGd.

However, in the conventional device A, the response is poor, and the column f
There are problems such as heavy components accumulating inside the device, and since conventional device B cannot maintain a large temperature difference, it requires a larger heat transfer area than device A, resulting in higher costs. Ta.

The present invention was made to solve the problems of the conventional devices mentioned above, and it is possible to produce low-temperature LPG by mixing steam with low-temperature LPG.
This relates to an LPG vaporization device characterized by comprising a □ mixer that heats LPG to room temperature, and a vaporizer that vaporizes room temperature LPG from the mixer by heat exchange with a heating fluid.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 is a block diagram showing an example of application of the present invention. In the figure, 1 is a mixer that supplies steam 2, and 3 is a mixer that introduces a heating fluid 4 such as hot water or steam to perform heat exchange. 5 is a burner, 6 is a low temperature LPG,
7 indicates normal temperature LPG, and 8 indicates LP gas.

With the above device, low-temperature LPG 6 is introduced into the □ kisser 1 and directly mixed with steam 2 to be heated at room temperature (0°C or higher) in the casing, and the heated room-temperature LPG 7 is introduced into the vaporizer 3 and heat exchanged with the heated fluid 4. It is vaporized by the exchange and guided to the burner 5 as LP gas 8.

4 and 5 show an example of the configuration of the mixer 1, and FIG. 4 shows a pipe 9 for feeding low-temperature LPG 6.
The steam introduction pipe 10 is connected and a nozzle 11 is provided inside to mix the steam 2, and the temperature on the downstream side of the pipe 9 is detected with a thermometer 12, and based on the detected temperature, the steam introduction pipe 10 is By adjusting the flow rate regulating valve 13 provided in the steam pump 1, the amount of steam introduced is adjusted and the temperature of the room temperature LPG 7 is adjusted.

In addition, FIG. 5 shows a packed tower 17 in which a packing 16 is inserted inside to form spaces 14 and 15 above and below, low-temperature LPG 6 is introduced into the upper space 14, and room-temperature LPG is introduced from the bottom.
Furthermore, the steam 2 is introduced into the lower space 15 from the nozzle 11 through the steam introduction pipe 10, and the temperature inside the filling 16 is detected by the thermometer 12, and the steam is removed based on the detected temperature. A flow rate adjustment valve 13 provided in the middle of the introduction pipe 10 is operated to adjust the temperature of the room temperature LPG 7.

As mentioned above, the mixer 1 directly mixes the steam 2 with the low temperature LPG 6, raises the temperature with the room temperature residue, and guides it to the vaporizer 3, where the vaporized LP gas 8 is guided to the burner 5, and the room temperature LPG 7 The amount of steam is adjusted so that the temperature is always maintained at a predetermined temperature (0℃ or higher).
The temperature of steam 2 supplied by mixer 1 is low LP
When the temperature approaches 0℃ due to heat exchange with G6, the vaporizer 3
Since the steam or hot water is introduced into the tank and heated, there is no possibility that the steam or hot water will freeze.

Furthermore, the heat power can be improved by extracting the steam 2 to LPG.

Incidentally, the mixer of the present invention can be of various types other than those shown in the drawings.

According to the above-mentioned LPG vaporizer of the present invention, a mixer is provided to mix low-temperature LPG with steam, raise the temperature in the room-temperature case, and then introduce it into the vaporizer and vaporize it. In addition to making the vaporizer very compact, the temperature of room-temperature LPG is adjusted by the mixed supply of steam, which provides extremely good controllability, allowing low-temperature LPG to be heated to room temperature efficiently in a short period of time. It exhibits excellent effects such as being able to increase processing capacity.

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams showing examples of conventional devices similar to the present invention, FIG. 3 is a block diagram showing an embodiment of the present invention, and FIGS. 4 and 5 are respectively illustrations of conventional devices similar to the present invention. It is an explanatory view showing an example of a mixer. 1 is mixer, 2 is steam, 3 is vaporizer, 4 is heating fluid, 5 is burner, 6 is low temperature LPG, 7 is room temperature LPG, 8
is LP gas, 10 is steam introduction pipe, 11 is nozzle, 1
2 is a thermometer, 13 is a flow rate regulating valve, 16 is a packing material, and 17 is a packed column.

Claims (1)

[Scope of utility model registration request] An LPG characterized by comprising a mixer that mixes steam into low-temperature LPG to raise the temperature of the low-temperature LPG to room temperature 1, and a vaporizer that vaporizes the room-temperature LPG from the mixer by heat exchange with a heating fluid. vaporizer.