CN1272394A - Automatic pressure-controlled gas generator - Google Patents
Automatic pressure-controlled gas generator Download PDFInfo
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- CN1272394A CN1272394A CN 00102490 CN00102490A CN1272394A CN 1272394 A CN1272394 A CN 1272394A CN 00102490 CN00102490 CN 00102490 CN 00102490 A CN00102490 A CN 00102490A CN 1272394 A CN1272394 A CN 1272394A
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Abstract
An automatic pressure-controlled gas generator, belonging to chemical gas generation equipment and suitable for medium and small sized chemical gas source, is characterized by that the said equipment possesses a cavity chamber whose volume can be elastically expanded, and said cavity chamber is communicated with reaction liquor. As compared with existent technology, it possesses the advantages of that its produced gas pressure can be controlled, safe and practical, its operation is simple, convenient and flexible, and it can be used as gas source for supplying gas.
Description
The invention relates to an automatic pressure control gas generator, which belongs to a chemical gas generating device and is suitable for medium and small chemical gas sources.
At present, a Kipp's generator is generally adopted as a chemical gas generating device, which is specially introduced in the section of ' laboratory preparation method of hydrogen gas ' of the current Junior high school chemistry teaching material in China.
The defects of the method are as follows: it has no structure for controlling air pressure, so that it is not flexible, and is not suitable for use as air supply source for medium and small chemical air sources.
The purpose of the invention is: the invention relates to an automatic pressure control gas generator which can control the gas pressure safely and practically and is simple and flexible to operate, and is used as a medium and small chemical gas source.
In order to achieve the purpose, the invention adopts the following technical scheme:
automatic accuse pressure gas generator, including reactor, reaction solid, reaction liquid, the reactor comprises urceolus, the inner tube of splendid attire reaction solid, the top cap that is used for sealing etc. of splendid attire reaction liquid, as chemical gas generating device, its characteristics are:
the device is provided with a chamber of elastically expandable volume, which is in communication with the reaction liquid.
Compared with the prior art, the invention has the advantages of controllable pressure, safety, practicability, simple and flexible operation, capability of being used as an air supply source and the like.
The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
As shown in FIG. 1, the present invention comprises a reactor R, a reaction solid S, and a reaction liquid L.
The reactor R is formed by assembling and combining an outer cylinder 1 for containing reaction liquid L, an inner cylinder 2 for containing reaction solid S, a top cover 3 for sealing, a sealing rubber ring 4, a piston 10, a butterfly-shaped bag 6 and a valve 5. The inner cylinder 2 is arranged in the outer cylinder 1, the top cover 3 is sleeved on the inner cylinder 2, the sealing rubber ring 4 is pressed and connected with the outer cylinder 1 in a buckling mode (the buckling mode can be similar to a pressure cooker, so that the pressure cooker is convenient to assemble and use), and ribs 12 are arranged on the periphery of the top cover 3 to play a role in strengthening and assisting in screwing. The top cover 3 is provided with three opening pipes a, b and c which are respectively provided with a piston 10, a butterfly bag 6 and a valve 5, the upper part of the piston 10 is provided with a spring 8, and the whole device is sealed. In order to make the device light, three major components of the reactor can be made by injection molding of plastics such as Polyethylene (PE), polypropylene (PP) and the like, and in order to make the device portable, the device can be designed into a bucket type, and handles 9 are arranged on two sides of the bucket type.
The upper part of the inner cylinder 2 is provided with reaction solids S, the bottom side of the upper container is provided with a plurality of small holes h which can accommodate liquid to come in and go out, the lower part is a hollow container, and the reaction solids S are immersed in the liquid L to generate buoyancy to float the inner cylinder 2, so that the solid-liquid contact reaction can be avoided; the center of the inner cylinder 2 is provided with a slender mandril d which is sleeved in the central pipe b of the top cover 3 and extends out of the pipe orifice of the b, and the outside of the b is provided with a telescopic butterfly-shaped bag 6 shaped like a butterfly-shaped spring. With this structure, the push rod d can be pressed by human force at any time, so that the reaction solid S contained in the inner cylinder 2 moves to a proper position along with the inner cylinder 2 to realize solid-liquid contact or separation, and the gas is generated or stopped.
The butterfly bag at the head of the ejector rod d is externally provided with a fixing clamp 7 which can fix the ejector rod d at a certain position, so that the solid S at the upper part of the inner cylinder 2 can be fixed at a corresponding position to realize continuous contact reaction with the liquid L.
The reaction speed can be effectively controlled by adjusting the height of the mandril d. The deeper the push rod d is pressed, the more solid-liquid contact is, and the more the reaction is. When the fixing clip 7 is released and the inner cylinder 2 floats up by buoyancy, the solid-liquid separation is performed, whereby the reaction can be stopped.
The piston 10 is arranged in a thick pipe a of the top cover 3, the spring 8 is arranged at the upper part of the piston 10, the pipe a is downwards and directly communicated to the bottom of the outer cylinder 1 to be communicated with the reaction liquid L, and the pipe a, the piston 10 and the spring 8 form a chamber 11 with elastically expandable volume. The spring 8 has a certain pressure tolerance at a certain position, if the internal air pressure is too large to exceed the pressure tolerance, the spring is compressed, and then the piston 10 moves upwards to the volume of the chamber 11 to generate elastic expansion, so that the internal air pressure of the device is reduced, and the safety and the practicability of the internal air pressure are maintained. Different springs have different withstand pressures, and springs with corresponding pressure resistance can be selected according to different required pressures so as to obtain the required pressure when in use.
The chamber 11 is in communication with the reaction liquid, allowing for efficient and automatic regulation of the reaction. When the push rod d is pressed down to make the solid-liquid contact react, if the reaction is too violent at this time, the gas generation speed is greater than the gas outlet speed of the valve 5, the gas pressure in the device is increased, the reaction liquid L is pressed into a part of the chamber 11, the liquid level is reduced, the solid-liquid contact is reduced, the reaction speed is reduced until the gas generation speed is equal to the gas outlet speed of the valve 5: also, if the valve 5 is closed at this time, the reaction liquid L is continuously flowed into the chamber 11 by the increase in the gas pressure until the solid-liquid separation reaction is stopped. The chamber 11 thus has the dual function of limiting pressure and regulating the reaction.
As a chemical gas generator, the present invention can be used for producing a gas which can be generated by reacting a particulate solid with a liquid and is not easily dissolved in the reaction solid or the reaction liquid, such as hydrogen (H)2) Acetylene gas (C)2H2) Oxygen (O)2) The catalyst can be prepared by the reaction of aluminum particles or zinc particles, white liquor, calcium carbide, saturated salt solution and hydrogen peroxide with solid particle catalysts (such as activated carbon particles) for catalytic decomposition, and the like, and the related reaction formulas are as follows:
when the aluminum particles or zinc particles react with the caustic soda liquid to prepare hydrogen, a defoaming agent is added for defoaming, and after the reaction is finished, the waste solution obtained by the reaction can be recycled to reduce the gas production cost.
It is worth mentioning that: when the device is used, residual air in the reactor can influence the normal use of the gas, so that the valve 5 is opened to be emptied to allow the reaction to be carried out for a period of time until the purity of the discharged gas meets the use requirement through inspection, which is the emptying operation required before the device is used. The evacuation operation is carefully and thoroughly performed in the preparation of a fuel gas such as hydrogen gas or acetylene gas, which is a safety problem in use.
After the reaction medicine is consumed, the new medicine needs to be replaced in time; the reactor filled with the medicine is strictly prohibited to be inverted; when the device is not used for a long time, the medicines are taken out and placed separately.
Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
The difference is that: embodiment 2 is to arrange the chamber 11 at the bottom of the device, which facilitates the integration of the chamber 11 and the outer cylinder 1, thereby simplifying the structure of the top cover 3 and facilitating the injection molding of the top cover 3.
In example 2, the butterfly bag 6, the fixing clip 7, the open pipe b, and the like for controlling the position of the inner tube 2 in example 1 are also omitted, and therefore, the position of the inner tube 2 is fixed in this example. The simplified structure is mainly beneficial to reducing the manufacturing cost.
Meanwhile, the embodiment 2 also shows a simple and practical gas valve, namely a touch pressure type exhaust valve 13. As shown in figure 2, it is assembled and combined by the air outlet pipe C, valve ejector pin and seat 16, sealed rubber ring 17, ejector pin seat lower spring 14 and ejector pin d of the inner cylinder 2 central authorities that are set up on the top cap 3, mount the spring 14 on the ejector pin d first while assembling, then mount the rubber ring 17 on the valve ejector pin seat 16, and put it into the air outlet pipe C, the middle of the ejector pin 16 crosses the small spring 18 and fixes it in the pipe C, then buckle the top cap 3 on the outer cylinder 1, can get the exhaust valve 13 of the touch pressure type at the same time. The spring 14 is arranged on the ejector rod d, so that the ejector rod d is better utilized, and a touch pressure type exhaust valve is adopted instead of a common air valve, and is mainly used as an inflatable ball. As shown in FIG. 2, a balloon 15 is sleeved on a tube C, a finger slightly presses the balloon skin on the opening of the tube C, namely, the push rod 16 is pressed to open the exhaust valve 13, the balloon can be inflated after gas is exhausted, and hydrogen is obtained and inflated when reaction solid (S) and reaction liquid (L) which react to obtain hydrogen are adopted.
Fig. 3 is a schematic structural diagram of embodiment 3 of the present invention.
The particularity is that: in embodiment 3, the chamber 11 is constructed by the barrel of the outer barrel in an elastically telescopic structure, so that the chamber 11 is arranged on the outer barrel and integrated with the outer barrel, but not arranged additionally, which simplifies the structure of the whole device and greatly reduces the manufacturing cost.
As shown in fig. 3, in embodiment 3, the barrel body of the outer barrel 1 is in an elastically telescopic overlapped belleville spring type structure from top to bottom between M to N, two pairs of lugs E1/E2 and E3/E4 are arranged at two ends of the barrel body, and a tension spring (or rubber rope and the like) 8 is hung between each pair of lugs for tensioning, so that an elastically telescopic barrel body is constructed, a chamber 11 with elastically expandable volume is formed, and the chamber is used as a component part of the outer barrel and is communicated with reaction liquid, so that the effects of automatically controlling pressure and regulating and controlling reaction can be exerted.
The action mode is as follows: under the action of the tension of the spring 8, the barrel body between M and N is compressed, solid-liquid contact reaction gas occurs, at the moment, if the valve 5 is opened, the gas is continuously discharged, once the valve 5 is closed, the gas in the cavity 11 is continuously increased along with the reaction, the gas pressure is increased, the volume of the cavity 11 is expanded, and the barrel body between M and N is elastically stretched to jack the inner barrel 2 until the solid-liquid separation reaction stops. Therefore, when the valve 5 is opened, the reaction occurs, and when the valve is closed, the reaction stops, thereby realizing the function of automatically regulating and controlling the reaction; the springs with different pulling forces can obtain different gas pressures, so that the function of automatic pressure control can be realized.
The outer tube 1 can be made by blow molding, and the handle 9 can be blown on the top surface of the tube body during the manufacturing process, so that the product can be used for portability. During assembly, firstly, reaction liquid L is put into the outer barrel 1, reaction solid S is put into the inner barrel 2, then the inner barrel 2 isput into the outer barrel 1, the sealing ring 4 is pressed, the valve 5 is installed, the gland 3 is screwed, and finally the spring 8 is installed.
The whole device of the embodiment 3 is composed of only indispensable components, and is the simplest structure of the invention.
The reaction pressure can be effectively controlled by arranging the cavity with the elastically expandable volume; the relative position of the reaction liquid in the reactor can be changed by communicating the reaction liquid with the reaction liquid, thereby regulating and controlling the reaction. This is the basic principle of the present invention.
Claims (8)
1. Automatic accuse pressure gas generator, including reactor (R), reaction solid (S), reaction liquid (L), reactor (R) is by urceolus (1) of splendid attire reaction liquid (L), inner tube (2) of splendid attire reaction solid (S) and be used for sealed top cap (3) etc. to constitute, as chemical gas generating device, its characterized in that: the device is provided with a chamber (11) whose volume can be elastically expanded, the chamber (11) being in communication with the reaction liquid (L).
2. An automatic pressure control gas generator as claimed in claim 1, wherein: the outer cylinder (1) and the top cover (3) are connected by a buckle.
3. An automatic pressure control gas generator as claimed in claim 1, wherein: the top cover (3) is provided with ribs (12) along the periphery.
4. An automatic pressure control gas generator as claimed in claim 1, wherein: the outer cylinder (1), the inner cylinder (2) and the top cover (3) aremade of plastics.
5. An automatic pressure control gas generator as claimed in claim 1, wherein: the chamber (11) is arranged at the bottom of the device.
6. An automatic pressure control gas generator as claimed in claim 5, wherein: a contact pressure type exhaust valve (13) is arranged on a top cover (3), and a spring (14) under the seat of an ejector rod (16) of the valve (13) is arranged at the head part of an ejector rod (d) at the center of an inner cylinder (2).
7. The chamber (11) according to claim 1, characterized in that: it is formed by an outer cylinder (1) and an elastically telescopic structure.
8. The chamber (11) according to claim 7, characterized in that: it is formed by adopting a structure of a folding disc spring type on a section of the outer cylinder (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 00102490 CN1272394A (en) | 1999-03-25 | 2000-03-13 | Automatic pressure-controlled gas generator |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN99116398.2 | 1999-03-25 | ||
CN 99116398 CN1233525A (en) | 1999-03-25 | 1999-03-25 | Automatic pressure control type gas generator |
CN 00102490 CN1272394A (en) | 1999-03-25 | 2000-03-13 | Automatic pressure-controlled gas generator |
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Publication Number | Publication Date |
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CN1272394A true CN1272394A (en) | 2000-11-08 |
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Application Number | Title | Priority Date | Filing Date |
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CN 00102490 Pending CN1272394A (en) | 1999-03-25 | 2000-03-13 | Automatic pressure-controlled gas generator |
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CN (1) | CN1272394A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103446953A (en) * | 2013-09-03 | 2013-12-18 | 江苏建筑职业技术学院 | Gas generation device |
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2000
- 2000-03-13 CN CN 00102490 patent/CN1272394A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103446953A (en) * | 2013-09-03 | 2013-12-18 | 江苏建筑职业技术学院 | Gas generation device |
CN103446953B (en) * | 2013-09-03 | 2015-03-25 | 江苏建筑职业技术学院 | Gas generation device |
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