JP2004211606A - Method and device for manufacturing clean gas with high pressure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a device for manufacturing clean gas with high pressure for creating gas at high pressure, not mixed with foreign matters such as oil, such as air, oxygen gas, hydrogen gas, carbon dioxide gas, nitride gas, and helium gas by a simple system. <P>SOLUTION: One end of a pressure intensifying rod of a pressure intensifying piston rod 11 integrally forming a pressure intensifying piston 11a and a pressure intensifying rod 11b is positioned to a piston 42 constituting a cylinder so as to form a space part 40Az, so that a pressure intensifier 10A is arranged at a top of a cylinder 40A constituting a compressor 50A creating compressed air with low pressure in a manner not to be influenced by lubricating oil dispersed at a bottom of a piston. A flow-in piping 101 connecting a check valve 22 for preventing reverse flow, and a flow-out piping 102 connecting a check valve 23 are arranged to a pressure intensifying chamber 10Az formed by the pressure intensifier 10A. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method and an apparatus for producing a high-pressure clean gas, and more specifically, air, oxygen gas, and hydrogen gas containing no foreign matter such as high-pressure oil in a simple manner. TECHNICAL FIELD The present invention relates to a method and apparatus for producing a clean high-pressure gas for producing gases such as carbon dioxide, nitrogen gas, and helium gas.
[0002]
[Prior art]
Conventionally, as a technique relating to a method and an apparatus for producing a clean high-pressure gas, an air compressor has been generally used.
[0003]
Here, as shown in FIG. 3, the air compressor 50B includes a cylinder 40B, a suction filter 51, a connecting rod 55, and other components. The cylinder 40B includes a cylinder body 41, a piston 42, and a cylinder. It is constituted by a head 43 and the like.
[0004]
In this case, the air compressor 50B transmits the rotation of the electric motor to the crankshaft via a belt, and connects the connecting rod 55 to the crankshaft. The rotary motion is converted to a linear reciprocating motion and transmitted to the connecting rod 55, and the reciprocating motion of the connecting rod 55 is transmitted to the piston 42 which forms the cylinder 40B and is connected to the connecting rod, thereby passing through the suction filter 51. The compressed air is produced while taking the sucked air into the cylinder 40B.
[0005]
[Problems to be solved by the invention]
However, there are the following problems in the related art related to the method and the apparatus for producing a clean high-pressure gas.
[0006]
First, in the case of an air compressor, the rotation movement of the crankshaft is transmitted from an electric motor to a piston constituting a cylinder by converting the rotation movement of the crankshaft into a linear reciprocating movement via a connecting rod. The lubricating oil supplied to the stored crankcase entered the cylinder from around the piston, polluting the high-pressure gas created in the cylinder.
[0007]
Second, in the case of air compressors, mounting a higher rank compressor has been used to create a slightly higher pressure gas, but the gas at the desired pressure, including high and medium pressure, is freely available. There was no idea of creating.
An object of the present invention is to solve such a problem.
[0008]
[Means for Solving the Problems]
The present invention relates to an intensifier cylinder 10A, 10B incorporating an intensifier piston rod 11 on an upper part of a cylinder 40A constituting an air compressor 50A for producing compressed air having a low pressure, by using an intensifier piston 11a and an intensifier rod. One end of the pressure-intensifying rod 11b of the pressure-intensifying piston rod 11 integrally formed with the pressure-intensifying piston 11b is scattered to a lower portion of the piston 42 by forming a space 40Az by positioning one end of the pressure-intensifying rod 11b in the piston 42 constituting the cylinder 40A. The pressure intensifying cylinders 10A and 10B and the cylinder 40A are separately disposed so as not to be affected by the lubricating oil, and the movement of the cylinder 40A in the air compressor 50A is applied to the pressure intensifying cylinders 10A and 10B. By transmitting the pressure, the pressurized gas from the outside introduced into the pressure intensifying cylinders 10A and 10B is renewed. It is characterized in that a high pressure gas is produced, and further, by changing the pressure increase ratio by the maximum volume / minimum volume on the pressure increase chamber 10Bz side formed by the pressure increase cylinder 10B, the pressure increase chamber 10Bz is formed. The pressure of the gas flowing out of the pressure boosting chamber 10Bz can be adjusted by changing the pressure of the gas flowing into the pressure boosting chamber 10Bz formed by the pressure boosting cylinder 10B. It is characterized in that the pressure of the outflow gas can be adjusted, and further, the pressurized gas from the outside is produced by one cylinder of a multi-cylinder air compressor, and the air that produces the compressed air having a low pressure The above problem has been solved by being characterized in that the compressor is produced with the remaining cylinders of the multi-cylinder air compressor.
[0009]
The present invention also relates to an intensifier cylinder 10A, 10B incorporating an intensifier piston rod 11 at the upper part of a cylinder 40A constituting an air compressor 50A for producing compressed air having a low pressure. One end of the pressure-intensifying rod 11b of the pressure-intensifying piston rod 11, in which the rod 11b is integrally formed, is positioned at the piston 42 that constitutes the cylinder 40A, and scatters below the piston 42 by forming a space 40Az. The pressure intensifying cylinders 10A and 10B and the cylinder 40A are separately disposed so as not to be affected by the lubricating oil, and the pressure intensifying chambers 10Az and 10Bz formed by the pressure intensifying cylinders 10A and 10B are provided. Is an inflow pipe 101 connected to a check valve 22 for preventing backflow from the pressure intensifying chambers 10Az and 10Bz. Outflow pipes 102 and 112 connecting a check valve 23 for preventing backflow to the pressure-intensifying chambers 10Az and 10Bz are provided, and the pressure-intensifying cylinder 10B is further provided with the pressure-increasing cylinder 10B. In order to change the pressure increase ratio based on the maximum volume / minimum volume on the chamber 10Bz side, the pressure increase chamber partition 16 housed inside the pressure increase chamber 10Bz forming the pressure increase cylinder 10B is freely moved. And a pressure reducing valve 21 for the purpose of changing the pressure of the gas flowing into the pressure-intensifying chambers 10Az, 10Bz. The above-mentioned problem has been solved by being characterized in that it is provided.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
A method and an apparatus for producing a clean high-pressure gas according to the present invention will be described in detail with reference to the drawings.
Here, FIG. 1 is a diagram showing an air compressor of the present invention, and FIG. 2 is a diagram showing another air compressor of the present invention.
[0011]
(First embodiment)
As shown in FIG. 1, 50A is an air compressor, which is the same as the air compressor 50B shown in the prior art except that the suction filter 51 and the cylinder head 43 are used.
[0012]
Accordingly, the air compressor 50A includes the electric motor 59, the cylinder 40A, the connecting rod 55, and other components, and the cylinder 40A includes the cylinder body 41, the piston 42, and the like.
[0013]
And as a whole structure, the connection part 30 is located on the upper part of the air compressor 50A, the pressure-intensifying cylinder 10A is located on the upper part of the connection part 30, and the cylinder 40A constituting the air compressor 50A and the connection part are connected. Although not specifically shown in FIG. 1, between the connection portion 30 and the connection portion 30 and between the pressure intensifying cylinder 10 </ b> A are fixed by bolts or other methods.
[0014]
The pressure-intensifying cylinder 10A is composed of a pressure-intensifying piston rod 11 or the like in which a pressure-intensifying piston 11a and a pressure-intensifying rod 11b are integrally formed, and one end of the pressure-intensifying rod 11b is located at a piston 42 that constitutes the cylinder 40A. By doing so, the linear motion of the cylinder 40A of the air compressor 50A is transmitted to the pressure-intensifying cylinder 10A at the same time that the space 40Az is formed. Naturally, care must be taken to prevent gas from leaking to the pressure-intensifying piston 11a between itself and the pressure-intensifying cylinder body.
[0015]
In this case, when viewed from the movement of the pressure increasing piston 11a, in FIG. 1, L indicates a bottom dead center, H indicates a top dead center, and B indicates a stroke. From another point of view, A indicates the position of the maximum volume of the pressure-intensifying chamber 10Az forming the pressure-intensifying cylinder 10A, and the pressure-intensifying piston 11a moves to the stroke of B and reaches the top dead center of H. The position indicated by the dotted line indicates the position of the minimum volume.
[0016]
Here, the pressure intensifying chamber 10Az is formed as a place where the gas in the pressure intensifying cylinder 10A is compressed. The pressure-intensifying chamber 10Az is connected to an external pipe by an inflow path 10Ab and an outflow path 10Aa formed at the end of the pressure-intensifying cylinder 10A opposite to the cylinder 40A.
[0017]
The chamber on the opposite side of the pressure-intensifying chamber 10Az from the pressure-intensifying piston 11a inside the pressure-intensifying cylinder 10A discharges gas from the chamber by a discharge path 10Ac formed at the end of the pressure-intensifying cylinder 10A on the cylinder 40A side. It is possible. However, the end forming the discharge path 10Ac does not have to have the structure in which the discharge path 10Ac is provided as shown in FIG.
[0018]
The connecting portion 30 has a structure in which the air compressed in the space portion 40Az is discharged to the outside by making a hole in the side surface when the piston 42 constituting the cylinder 40 is operated. There is a need. In this case, the connecting portion 30 may be removed if the mounting position of the cylinder 40A constituting the air compressor 50A and the mounting position of the pressure-intensifying cylinder 10A coincide with each other.
[0019]
Further, an inflow pipe 101 is connected to the inflow path 10Ab. In the middle of the inflow pipe 101, a pressure reducing valve 21 for lowering the pressure of the inflowing gas and a check valve for preventing gas from flowing back from the pressure intensifying chamber 10Az. 22 are arranged. Further, an outflow pipe 102 is connected to the outflow path 10Aa, and a check valve 22 and a manual open / close valve 24 for preventing gas from flowing back into the pressure intensifying chamber 10Az are provided in the middle of the outflow pipe 102, Connected to air tank.
[0020]
Further, the stored pressurized gas can be used from the supply tank 103 from the air tank. In this case, a manual open / close valve 25 is provided in the middle of the supply pipe 103.
[0021]
The method and apparatus for producing a clean high-pressure gas according to the present invention are configured as described above, and the operation thereof will be described in detail below.
[0022]
First, when compressed air is flowed into the inflow pipe 101 and the air compressor 50A is operated at the same time, reciprocating linear motion is transmitted to the piston 42 of the cylinder 40A connected to the connecting rod 30.
[0023]
Therefore, the pressure-intensifying piston rod 11 whose end is in contact with the piston 42 and constitutes the pressure-intensifying cylinder 10A receives the movement and performs a reciprocating linear motion as the pressure-intensifying cylinder 10A.
[0024]
Therefore, by the reciprocating linear motion, the pressure of the compressed air flowing from the inflow pipe 101 is further increased in the pressure intensifying chamber 10Az of the pressure intensifying cylinder 10A according to the pressure increasing ratio of the maximum volume / minimum volume. That is, the pressure is increased in the relation of pressure of outflow gas = pressure of inflow gas × (A / AB). For this reason, by mounting the pressure-intensifying cylinder 10A in which the dimensions of A and B are changed in the pressure-intensifying cylinder 10A, it is easy to freely select the pressure of the outflow gas.
[0025]
Finally, the pressurized compressed air passes through an outflow pipe 102 and a check valve 23 that prevents backflow to the side of a pressure-intensifying chamber 10Az disposed in the middle thereof, and a manually opened / closed valve 24 that opens and closes. Stored in air tank. The compressed air stored in the air tank can be used freely from the supply pipe 103.
[0026]
In this case, as the gas flowing through the inflow pipe 101, compressed air is further increased by flowing compressed air, but the pressure is increased by flowing gas such as oxygen gas, hydrogen gas, carbon dioxide gas, or helium gas. These gases are obtained.
[0027]
The pressure of the outflow gas can also be adjusted by adjusting the pressure of the compressed air flowing from the inflow pipe 101 by the pressure reducing valve 21. That is, it is possible to freely produce compressed air of various pressures by mounting the pressure-intensifying cylinder 10A with the dimensions A and B changed and adjusting the pressure with the pressure reducing valve 21.
[0028]
In this way, the gas intensified by the pressure intensifying cylinder 10A forms a space 40Az between the lubricating oil and the crankshaft from which the lubricating oil is scattered, so that the gas is intensely increased without lubricating oil infiltration. Compressed air can be obtained.
[0029]
(Second embodiment)
As can be seen in FIG. 2, the second embodiment differs from the first embodiment in that the first embodiment uses booster cylinders 10A of various sizes A and B according to the desired outflow pressure. On the other hand, in the second embodiment, a handle 15 movable by screwing is disposed at the end of the pressure-intensifying cylinder 10B, and a pressure-intensifying chamber partition 16 is fixed to the tip of the handle 15. Thus, the pressure-intensifying chamber partition 16 is configured to be movable in accordance with the rotation of the handle 15. Naturally, care must be taken to prevent the gas from leaking into the pressure-intensifying chamber partition 16 between itself and the pressure-intensifying cylinder body.
[0030]
Here, the contents of A, B, H, and L are the same as in the first embodiment, and it is also possible to increase the pressure in the relationship of pressure of outflow gas = pressure of inflow gas × (A / AB). This is the same as the first embodiment, but is different from the first embodiment in that the value of A can be freely changed by operating the handle 15.
[0031]
Accordingly, it is possible to freely change the pressure of the outflow gas by operating the handle 15. The positions of the inflow passage 10Bc and the outflow passage 10Ba are located near the top dead center H and slightly larger than the stroke B in the vicinity of the top dead center H because of the relationship between the pressure intensifying chamber partition 16 and the movement thereof.
[0032]
The method and apparatus for producing a clean high-pressure gas according to the present invention are configured as described above, and the operation thereof will be described in detail below.
[0033]
First, the position of A can be freely changed by operating the handle 15. Therefore, it is possible to freely set the outflow pressure. The rest is the same as in the first embodiment, and a description thereof will be omitted.
[0034]
(Third embodiment)
The difference between the third embodiment and the first embodiment is that instead of pressurized gas from the outside of the first embodiment, compressed air created by one cylinder of a multi-cylinder air compressor is used. An air compressor that uses pressurized gas and produces low-pressure compressed air uses the remaining cylinders of a multi-cylinder air compressor. The other points are the same as those of the first and second embodiments, and thus the details are omitted.
[0035]
【The invention's effect】
As is apparent from the above description, the following effects can be obtained by the present invention.
[0036]
First, a booster cylinder that incorporates a booster piston rod at the top of a cylinder that constitutes an air compressor that produces low-pressure compressed air, and a booster that integrates a booster piston and a booster rod By positioning one end of the booster rod of the piston rod to the piston that constitutes the cylinder and forming a space, the booster cylinder and cylinder are separated so that the lubricating oil scattered at the lower part of the piston does not affect it. By doing so, it became possible to produce clean high-pressure gas.
[0037]
Second, in order to change the pressure increase ratio based on the maximum volume / minimum volume on the pressure increase chamber side, the pressure increase chamber partition housed inside the pressure increase chamber forming the pressure increase cylinder is freely moved. By arranging a handle that can perform the operation, the outflow pressure can be freely set.
[0038]
Third, by providing a pressure reducing valve in the inflow pipe for the purpose of changing the pressure of the gas flowing into the pressure intensifying chamber, the outflow pressure can be freely set.
[Brief description of the drawings]
FIG. 1 is a view showing an air compressor of the present invention; FIG. 2 is a view showing another air compressor of the present invention; FIG. 3 is a view showing a conventional air compressor;
10A ··· Pressure booster cylinder 10Aa · · · Outflow path 10Ab · · · Inflow path 10Ac · · · Discharge path 10Az · · · Pressure booster chamber 10B · · · Pressure booster cylinder 10Ba · · · Outflow path 10Bb ··· Inflow passage 10Bc Discharge passage 10Bz Pressure intensifying chamber 11 Pressure intensifying piston rod 11a Pressure intensifying piston 11b Pressure intensifying rod 15 Handle 16 ······ Pressure increase chamber partition 21 ····· Pressure reducing valve 22 ······ Check valve 23 ······ Check valve 24 ···················· Valve 30 connection part 40A cylinder 40Az space part 40B cylinder 41 cylinder body 42 piston 43 cylinder head 50A ... air compressor 50B ... air compressor 51 ... Suction filter 55 ... Connecting rod 59 ... Electric motor 101 ... Inflow pipe 102 ... Outflow pipe 103 ... Supply pipe 111 ... Inflow pipe 112 Outflow pipe A Position of maximum volume of pressure boosting chamber B Stroke H Top dead center L Bottom dead center

Claims (7)

An intensifier cylinder (10A, 10B) incorporating an intensifier piston rod (11) at the upper part of a cylinder (40A) constituting an air compressor (50A) for producing compressed air having a low pressure is connected to an intensifier piston ( 11a) and one end of the pressure-intensifying rod (11b) of the pressure-intensifying piston rod (11) integrally formed with the pressure-intensifying rod (11b) are positioned on the piston (42) constituting the cylinder (40A). By forming the space (40Az), the pressure intensifying cylinders (10A, 10B) and the cylinder (40A) are separated so that the lubricating oil scattered below the piston (42) is not affected. The pressure boost cylinder is disposed by transmitting the movement of the cylinder (40A) in the air compressor (50A) to the pressure boost cylinder (10A, 10B). Loaders (10A, 10B) method for producing a high clean gas of pressure, characterized in that to produce a pressurized even higher pressure gas from the gas from the outside is introduced into. The pressure of the gas flowing out of the pressure intensifying chamber (10Bz) is adjusted by changing the pressure increasing ratio based on the maximum volume / minimum volume on the pressure intensifying chamber (10Bz) side formed by the pressure intensifying cylinder (10B). 2. The method for producing a clean high-pressure gas according to claim 1, wherein the gas can be produced. The pressure of the gas flowing out of the pressure intensifying chamber (10Bz) can be adjusted by changing the pressure of the gas flowing into the pressure intensifying chamber (10Bz) formed by the pressure intensifying cylinder (10B). 3. The method for producing a clean high-pressure gas according to claim 1 or claim 2. The pressurized gas from the outside is produced by one cylinder of the multi-cylinder air compressor, and the air compressor that produces the compressed air having a low pressure is produced by the remaining cylinder of the multi-cylinder air compressor. The method for producing a clean high-pressure gas according to any one of claims 1 to 3, wherein the gas is produced. An intensifier cylinder (10A, 10B) incorporating an intensifier piston rod (11) at the upper part of a cylinder (40A) constituting an air compressor (50A) for producing compressed air having a low pressure is connected to an intensifier piston ( 11a) and one end of the pressure-intensifying rod (11b) of the pressure-intensifying piston rod (11) integrally formed with the pressure-intensifying rod (11b) are positioned on the piston (42) constituting the cylinder (40A). By forming the space (40Az), the pressure intensifying cylinders (10A, 10B) and the cylinder (40A) are separated so that the lubricating oil scattered below the piston (42) is not affected. The pressure-intensifying chambers (10Az, 10Bz) provided by the pressure-intensifying cylinders (10A, 10B) are disposed from the pressure-intensifying chambers (10Az, 10Bz). Inflow pipes (101, 111) connecting check valves (22) for preventing backflow and outflow pipes connecting check valves (23) for preventing backflow to the pressure-intensifying chambers (10Az, 10Bz). An apparatus for producing a clean high-pressure gas, wherein (102, 112) is provided. For the purpose of changing the pressure increase ratio based on the maximum volume / minimum volume on the pressure increase chamber (10Bz) side, the pressure increase chamber (10B) forming the pressure increase cylinder (10B) is provided in the pressure increase cylinder (10B). 6. A high-pressure, clean gas according to claim 5, wherein a handle (15) capable of freely moving the pressure-intensifying chamber partition (16) housed inside the pressure chamber (10Bz) is provided. apparatus. The pressure reducing valve (21) is provided in the inflow pipe (101, 111) for the purpose of changing the pressure of the gas flowing into the pressure intensifying chamber (10Az, 10Bz). Item 7. An apparatus for producing a clean high-pressure gas according to item 6.

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