JPS629194A - Method and device for transporting gas selectively - Google Patents

Abstract

PURPOSE:To transport gas selectively by a method wherein the gas, sucked selectively into a heat pipe by a selective permeating device for separating gas (membrane) in a heating area, is transported, diffused and pressurized by the stream of vapor of heat-pipe operating liquid while the gas is separated selectively again by the membrane in a cooling area. CONSTITUTION:Primary series gas in an introducing section permeates selectively through the membrane A and is sucked into the heat pipe. The stream of vapor, generated in the heating area, arrests the gas and moves to the cooling area while forming the mixed stream of both of gas and vapor. The vapor in the cooling area is condensed and liquefied, then, is circulated into the heating area by the capillarity or gravity possessed by the wick, only the gas is blown to the cooling area by the stream of vapor and is pressurized through a vapor- gas diffusing area while the primary series gas is changed to secondary series gas and is stagnated. The secondary series gas permeates selectively through the membrane C again and is discharged as tertiary series gas.Through these processes, the selective transporting effect of gas, in which the gas in the primary series is transporting effect of gas, in which the gas in the primary series is transported selectively to the tertiary series, is operated.

Description

Detailed description of the invention (1) Purpose of the invention [Field of industrial application] A selective permeation device for gas separation in a heated region by utilizing the steam zero injection pump function of the heat pipe of the present invention. The gas that is selectively introduced into the heat pipe by the semipermeable membrane is transported, diffused, and pressurized by the steam source in the heat pipe production process, and the gas is selectively introduced again by the semipermeable membrane in the cooling region. A method and apparatus for selectively transporting gases by separating them! Regarding.

[While the prior art and the invention are trying to solve 1 "Prior art, 4
! A steam injection pump is a gas transport device that does not have any moving parts, but because the gas and the working steam cannot be completely separated, the steam of the working liquid flows out of the pump from the intake and exhaust ports. When it came out, it had some drawbacks. on the other hand,
The conventional selective MA4AM (semi-permeable membrane) for gas separation requires a device to create a pressure difference in the gas as a driving force for permeation through the membrane, which may introduce impurities into the gas. There was a flash.

The present invention has the 441 functions of both the evaporative pump shelf function of a heat pipe and the gas selective am function of a semi-transparent material, and has an M feature of eliminating the drawbacks of each. This is a method and apparatus for selectively transporting specifics that are not available in the market.

(2) Means for Solving Problems in Problem 1 of the Invention] The method and device for selectively transporting gas employed in the present invention as a means for solving all the technical problems mentioned in 1 above. The basic principles and laws involved are comprised of the following two parts <a> The heat vibrator part is non-condensing! ■Follows the operating principle of heat pipes containing gases.

During operation, due to the pressure difference between the heating area of the steamer and the cooling ring, the non-condensed til member contained in the heat pipe part cools down to the cold MJ#.
is transported to the edge, pressurized, and retained. This is pump IJ
I am capable.

In principle, there are no restrictions on the shape of the heat pipe.

(b) The selective permeation device for gas separation (semi-permeable L[) section selectively permeates gas based on the pressure difference of the non-condensable gas between the membranes. This has the role of selectively transmitting gas as an inlet and a wandering hole in the pump bridge function performed by the heat pipe system. The shape of the semipermeable membrane depends on the shape of the heat pipe.

Selectively @I the gas realized by the combination of these two
A is a structural ft 4111 structure for selectively transporting gas as shown as a simple example in FIG. It works as follows.

(i) The primary system gas of the introduction section selectively permeates through the semipermeable membrane (A) and is sucked into the heat vibrator section.

(■) The steam flow generated in the heating zone captures this gas, forms a mixed flow of both, and transfers it to the cooling zone.

(1) The gas in the cooling ring is layered and liquefied, and is returned to the heating area due to the capillary action of the wick and gravity, and only the gas is blown into the cooling area by the steam flow. , 1X member-
The gas is pressurized through the gas diffusion region, becomes a secondary gas, and stagnates.

(Niji) This secondary gas selectively permeates through the semi-permeable a (C) again and is discharged, becoming a tertiary gas.

Through these processes, a gas selective transport action occurs in which gases in the -order system are selectively transported to the tertiary system.

In carrying out the method and device for transporting gas according to the present invention in an M4 manner, as is clear from its basic structure,
- Semi-permeable membrane, heat pipe combination - Select gases with countless combinations that can technically confirm the chemical and physical integrity of the liquid and heat pipe cross-sections. It is possible to realize a device that transports The current technological level is at a stage where this can be accepted. Here, we will show an example of a device that has been found to be useful.

[Example] 1. As an example of the method and device for selectively transporting a gas according to this f@mei, in particular, a palladium alloy is used as a semi-transparent material, and meta-diphenylbenzene (meti-Diph) is used as an example.
er+vl Benzene: m-DPB)
A pipe N (referred to as a water transport pipe) was constructed that selectively transports the χ form, which uses hydrogen as a non-condensable substance to be selectively transported. Performance test of hydrogen transport pipe! ! The overall structure of the device is shown in Figure 2. The main design specifications of the m-DPB heat vibration part and/(radium alloy semipermeable membrane part) are as follows.The heat vibration part is made of stainless steel tube and has a length of 300 mm, an outer diameter of 27 mm, and an inner diameter of 24 mm. The wick is a 400-mesh stainless steel wire mesh. 25 g of m-DPB is sealed in the 1st night of production. The palladium alloy film has a length of LGO mm and an outer diameter of 1.
．． 6 mm, thickness O, Q8 n+m, one end sealed, effective surface area is 50 (1 mm).The main body of the hydrogen transport pipe is based on the basic structure of the device that selectively transports gas.

A. Hydrogen introduction gB (-order system) 1 heat pipe with &[Bv-shaped palladium alloy semipermeable membranes (A, C) at both ends (
B: Secondary system) and hydrogen discharge section (tertiary system). The temperatures of the heating zone and the cooling zone are respectively adjusted by the M degree control system. The heating area steam 1f (Le) refers to the Jff of the steam flow part at the center of the heat vibrator, and
-Hydrogen pressure in the secondary and tertiary systems is measured at the same level. The usage conditions are J degree ia around 300, taking into account the chemical stability of m-DPB and the chemical and mechanical strength of palladium.
-420°C, E clause 11! The pressure was set to IQ-3 atm.

FIG. 3 shows an example of temporal changes in hydrogen pressure in the primary system and tertiary system due to the operation of this hydrogen IgI pipe. The entire system was degassed and the heating zone steam temperature (re) was 380'C.

Steam 1ff (Te) in the cooling area secondary system gas part is 3551
0 steady state. Next, the initial primary hydrogen system Eka (P
This is a case where 1 g of hydrogen (iiOam) is introduced as l). While Pl decreases with operating time, the hydrogen pressure in the tertiary system (P3) increases on the contrary.
After 1171 trials, the magnitude relationship between Pl and P3 was reversed after 44 minutes, demonstrating that the present invention has the function of transporting hydrogen in an ``f11'' manner and compressing it into rods. 2 o'clock M elapsed'#LPI and P3 become constant (Pi @, P3 ■). This Pi oo is the ultimate vacuum in a vacuum pump and is 15 cmHg. On the other hand, P3 ■ is a gas pressure width machine. The discharge pressure is 45 emHH.The true gas pressure capacity is P3ao - Pioo te 30cmHg.
There is.

The ascending ability of the gas in the present invention is the driving force, and is equal to the vapor pressure difference between the heating range of the liquid produced by the pipe and the $1+ point, so the boost value is 30 cmHg, which is the same as that of the example. fjI matches very well. Water # transport speed of transport pipe Pl
Assuming that the rate of hydrogen discharge into the tertiary system at the time when P3 is reversed is 0.3 cm /
In. This import is mainly made of palladium alloys.
! ! [Determined by the speed at which hydrogen spreads through the film. In the present invention, the operation of the heat pipe heating area is increased by 1 degree.
By increasing the vapor pressure difference of the liquid and the hydrogen diffusion rate in the semipermeable membrane, transport i! It is possible to increase both ga, culm pressure ability, sucking power, and wandering ability.

[Effects of invention 1. There are fewer mechanical failures as there are no mechanical parts involved.

2. The pump is not working, and the device does not turn on at night.

3. The transported gas does not leak out of the system.

4. jIII in the direction of gravity when installing iAH
There is no eH. It can operate normally even in zero gravity.

5. It has a heat transport function as well as a mass transport function.

6. The shape of the device is not limited within the normal range where heat pipe operation is possible.

[Brief explanation of the drawing]

FIG. 1 thoroughly illustrates the principle of the method for selectively transporting gases. FIG. 2 shows an outline of 411 of the TIIST for testing the performance of the hydrogen transport pipe of the example. FIG. 3 shows how the hydrogen pressure changes over time due to the construction of the hydrogen transport pipe.

Claims (1)

[Claims] 1. A selective permeation device for gas separation installed in the heating area of a container having a heat pipe function selectively introduces gas into the container, and transfers the gas to the heat pipe working fluid. entraining the vapor to form a mixed flow of the gas and the vapor;
The mixed flow is blown toward the cooling area, and the gas is selectively separated in the vapor-gas diffusion layer formed.
Further, when the gas remains in the cooling zone, the gas is selectively discharged out of the container again by a selective permeation device for gas separation provided in the cooling zone, and the gas is selectively transported. Method. 2. A device for selectively transporting gas, in which a selective permeation device for gas separation is provided in a heating zone and a cooling zone in a container having a heat pipe structure.