A simple liquid-liquid gas generator

Abstract

The present invention discloses a simple liquid-liquid gas generator, comprising a low-level kettle (1), a high-level kettle (8) and a dropping funnel (10). The upper part of the high-level kettle (8) is spherically open, and the spherical lower part is connected to the kettle connecting pipe (2); the lower end of the dropping pipe of the dropping funnel (10) is connected to the return pipe (13) and the U-shaped pipe (4) in sequence from top to bottom; the connection points are all sealed; the low-level kettle (1) includes an upper cavity and a lower cavity; the high-level kettle (8) is placed at the upper end of the low-level kettle (1), and the two are sealed and connected; the U-shaped pipe (4) penetrates from the kettle connecting pipe (2) and bends back to the upper cavity of the low-level kettle (1) from the lower end of the kettle connecting pipe (2). The device provided by the present invention realizes the automatic control of the liquid-liquid reaction gas production and gas extraction speed, and also complies with the principle of "on-the-go, on-the-go, off-the-go". It can effectively save drugs, control the occurrence and stop of reactions, and add liquid drugs to the device at any time.

Description

Technical Field

[0001] The invention belongs to the field of chemistry and chemical engineering, and particularly relates to a simple liquid-liquid contact gas generator. Background Art

[0002] Kipp's apparatus is a gas generator, also known as Kipp's gas generator or hydrogen generator. It was invented by Dutch scientist Petrus Jacobus Kipp (1808-1864) and named after his last name. It is often used in experiments on the reaction of solid particles and liquids to produce gas. A typical experiment is to use dilute sulfuric acid and zinc particles to produce hydrogen. It can save chemicals, control the occurrence and stop of the reaction, and add liquid chemicals to the device at any time, which conforms to the principle of "on and off, stop and start". However, the Kipp generator cannot be used to produce gas by the reaction of liquid and liquid; the Kipp generator cannot be used when the block solid dissolves quickly in the reaction. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a gas generator which can generate gas by liquid-liquid reaction and can be "turned on and used at any time, turned off and stopped at any time".

[0004] The technical solution provided by the present invention is as follows:

[0005] A simple liquid-liquid gas generator, comprising a low-level kettle (1), a high-level kettle (8) and a dropping funnel (10);

[0006] The upper part of the high-position kettle (8) is spherically open, and the spherical lower part is connected to the kettle connecting pipe (2);

[0007] The lower end of the dripping tube of the dripping funnel (10) is connected to the round tube (13) and the U-shaped tube (4) in sequence from top to bottom; the connection points are all sealed;

[0008] The low-position kettle (1) comprises an upper chamber and a lower chamber;

[0009] The high-position kettle (8) is placed on the upper end of the low-position kettle (1), and the two are sealed and connected; the U-shaped tube (4) passes through the kettle connecting tube (2) and is bent back from the lower end of the kettle connecting tube (2) to the upper cavity of the low-position kettle (1).

[0010] Specifically, the low-position kettle (1) is composed of a spherical upper chamber and a hemispherical lower chamber; the upper chamber is open at the top, the connection between the upper and lower chambers shrinks inwards to form a gap between the kettle connecting pipe (2) and the U-shaped pipe (4), and the bottom of the lower chamber is sealed; the side wall of the upper chamber is provided with a gas outlet (5); and the lower chamber is provided with a cleaning port (3).

[0011] Specifically, the meandering tube (13) is formed by four 90° bends, and a spherical container having a radius greater than the tube body is provided between the second and third bend points.

[0012] Specifically, the lower ends of the inter-tank connecting pipe (2) and the U-shaped pipe (4) of the high-position kettle (8) are inserted into the bottom of the low-position kettle (1).

[0013] Another object of the present invention is to provide a method for producing gas using the above-mentioned device, including liquid-liquid gas production.

[0014] Liquid-liquid gas production steps:

[0015] (1) Cover the cleaning port (3) with a lid, connect the gas outlet (5) to the gas pipe with the gas valve (7), and close the drip valve (9) and the gas valve (7);

[0016] (2) Select a more expensive raw material liquid from the two raw material liquids for producing gas and add it to the dropping funnel (10);

[0017] (3) After observing that the drip valve (9) is not leaking, another raw material liquid with a lower price is added into the high-level kettle (8);

[0018] (4) When a liquid level difference is observed between the high and low level kettles and the liquid level difference does not change over time, open the gas valve (7);

[0019] (5) After all the raw material liquid in the high-level kettle (8) flows into the low-level kettle (1), close the gas valve (7);

[0020] (6) Open the drip valve (9) to prepare gas;

[0021] (7) Open the air valve (7) to take out air.

[0022] The liquid-liquid reaction rate control principle of the device provided by the present invention is:

[0023] When producing gas, the drip valve (9) is opened, and the reaction liquid begins to contact and react. When the drip valve (9) is just opened, the drip driving force is the largest, which is equal to the liquid column pressure from the liquid surface of the drip funnel (10) to the liquid surface of the drip port (6), and the dripping speed is the fastest, and the gas production speed is the fastest. As the produced gas accumulates above the liquid surface of the low-level kettle, the gas pressure in the kettle gradually increases, and the liquid is pressed toward the high-level kettle (8) through the kettle connecting pipe (2), and the dripping driving force gradually decreases, the dripping speed slows down, and the gas production speed slows down; when the gas pressure of the low-level kettle = the hydraulic pressure difference between the high and low-level kettles = the hydraulic pressure difference from the upper liquid surface of the drip funnel (10) to the liquid surface of the liquid seal tube (4) at the drip port (6), the dripping driving force is zero, the dripping stops, and the gas production stops.

[0024] When gas is needed, the gas valve (7) can be opened at any time to take gas. When the gas valve (7) is just opened, the pressure in the low-level kettle (1) is the highest and the gas taking speed is the fastest. As the gas is taken out, the gas pressure in the low-level kettle (1) decreases, which reduces the gas taking speed and also restores and increases the driving force for dripping. The dripping is restored and the speed is increased, and the gas production is restored and the speed is increased. A balance is soon reached, and the gas production and gas taking speeds are equal. Thereafter, the gas taking speed is constant. If the opening of the gas valve (7) is increased, at the beginning, the pressure in the low-level kettle (1) is the highest and the gas taking speed is the fastest. As the incremental gas is taken out, the gas pressure in the low-level kettle (1) decreases, which reduces the gas taking speed and also increases the driving force for dripping. The dripping speed is accelerated, and the gas production speed is increased. A balance is soon reached, and the gas production and gas taking speeds are equal. Thereafter, the larger gas taking speed is constant. The gas taking speed can be adjusted at any time by the gas valve (7).

[0025] The design of the U-shaped tube (4) can effectively isolate the two reaction liquids, and the two liquids do not mix in large quantities during the reaction, and can achieve repeated separation and mixing of the two reaction liquids by changing the gas pressure in the low-level kettle (1). In addition, the dripping port (6) can also control the dripping speed by the pressure generated by the gas. The U-shaped tube (4) can achieve the above two technical effects and thus realize the "on-the-go, on-the-go, off-the-go, on-the-go" of the liquid-liquid reaction.

[0026] When the liquid in the dropping funnel is completely dripped, the U-shaped tube loses its liquid sealing effect, that is, the height of the liquid column generated by the liquid stored in the U-shaped tube is lower than the liquid level difference between the high and low kettles, and the gas will be vented through the dropping funnel. The function of the loop tube (13) is to ensure the liquid sealing effect.

[0027] Beneficial effects of the present invention:

[0028] The device provided by the present invention realizes the automatic control of the gas production and gas extraction speed of liquid-liquid reaction, and also complies with the principle of "use at any time when turned on, stop at any time when turned off". It can effectively save drugs, control the occurrence and stop of the reaction, and add liquid drugs to the device at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of a simple liquid-liquid gas generator;

[0030] Figure numerals: 1-low-position kettle; 2-connecting pipe between kettles; 3-cleaning port; 4-U-shaped pipe; 5-gas outlet; 6-drip port; 7-gas valve; 8-high-position kettle; 9-drip valve; 10-drip funnel; 11-upper port; 12-top port; 13-reciprocating pipe. DETAILED DESCRIPTION

[0031] The present invention is described below in conjunction with specific embodiments, but the content of the present invention is not limited thereto at all.

[0032] Example 1

[0033] Figure 1 The structure of the device provided by the present invention is shown.

[0034] A simple liquid-liquid gas generator comprises a low-position kettle 1, a high-position kettle 8 and a dropping funnel 10.

[0035] The upper part of the high-position kettle 8 is spherical and open, and the spherical lower part is connected to the kettle connecting pipe 2. Preferably, the two are integrally formed.

[0036] The low-position kettle 1 consists of a spherical upper chamber and a hemispherical lower chamber; the upper chamber is open at the top, and the connection between the upper and lower chambers shrinks inward to form a gap between the kettle connecting pipe 2 and the U-shaped pipe 4, and the bottom of the lower chamber is closed; a gas outlet 5 is opened on the side wall of the upper chamber, and the gas outlet 5 is used to connect the air guide pipe with an air valve 7; a cleaning port 3 is opened in the lower chamber.

[0037] The circular tube 13 is formed by four 90° bends, and a spherical container having a radius larger than the tube body is arranged between the second and third bend points.

[0038] The lower ends of the inter-kettle connecting pipe 2 and the U-shaped pipe 4 of the high-position kettle 8 are inserted into the bottom of the lower chamber of the low-position kettle 1 .

[0039] The dropping pipe of the dropping funnel 10 is connected to the circular pipe 13 and the U-shaped pipe 4 in sequence from top to bottom, and the connection points are all sealed.

[0040] The high-position kettle 8 is placed on the upper end of the low-position kettle 1, and the two are sealed and connected. Preferably, the top opening 12 is connected by a ground mouth. The U-shaped tube 4 passes through the kettle connecting pipe 2 and bends back from the lower end of the kettle connecting pipe 2 to the middle of the upper cavity of the low-position kettle 1. Preferably, the upper opening 11 is funnel-shaped, and the connection with the round pipe 13 is sealed by a ground mouth.

[0041] Application Example 1

[0042] Preparation of ammonia

[0043] 1) Prepare a saturated solution of easily soluble ammonium bicarbonate for later use;

[0044] 2) Cover the cleaning port 3 with a lid, and close the drip valve 9 and the air valve 7;

[0045] 3) 20% sodium hydroxide solution is added to the dropping funnel 10;

[0046] 4) After observing and confirming that the drip valve 9 is not leaking, add the prepared saturated ammonium bicarbonate solution into the high-level kettle 8;

[0047] 5) Observe the liquid level difference between the high and low level kettles. When the liquid level difference does not change with time, that is, when there is no gas leakage, open the gas valve 7;

[0048] 6) After the saturated ammonium bicarbonate solution in the high-level kettle 8 flows into the low-level kettle 1, close the gas valve 7;

[0049] 7) Open the drip valve 9 to prepare gas for standby use;

[0050] 8) When gas is needed, the gas valve 7 can be opened at any time to take in gas.

[0051] Application Example 2

[0052] Production of carbon dioxide

[0053] 1) Prepare a saturated solution of easily soluble ammonium bicarbonate for later use;

[0054] 2) Cover the cleaning port 3 with a lid, and close the drip valve 9 and the air valve 7;

[0055] 3) 98% concentrated sulfuric acid is added to the dropping funnel 10;

[0056] 4) After observing and confirming that the drip valve 9 is not leaking, add the prepared saturated ammonium bicarbonate solution into the high-level kettle 8;

[0057] 5) Observe the liquid level difference between the high and low level kettles. When the liquid level difference does not change over time, that is, when there is no gas leakage, open the gas valve 7;

[0058] 6) After the saturated ammonium bicarbonate solution in the high-level kettle 8 flows into the low-level kettle 1, close the gas valve 7;

[0059] 7) Open the drip valve 9 to prepare gas for standby use;

[0060] 8) When gas is needed, the gas valve 7 can be opened at any time to take in gas.

[0061] Application Example 3

[0062] Preparation of hydrogen sulfide

[0063] 1) Prepare a saturated solution of easily soluble sodium sulfide for later use;

[0064] 2) Cover the cleaning port 3 with a lid, and close the drip valve 9 and the air valve 7;

[0065] 3) 98% concentrated sulfuric acid is added to the dropping funnel 10;

[0066] 4) After observing and confirming that the drip valve 9 is not leaking, add the prepared saturated sodium sulfide solution into the high-level kettle 8;

[0067] 5) Observe the liquid level difference between the high and low level kettles, and after confirming that the liquid level difference does not change over time, that is, there is no gas leakage, open the gas valve 7;

[0068] 6) After the saturated sodium sulfide solution in the high-level kettle 8 flows into the low-level kettle 1, close the gas valve 7;

[0069] 7) Open the drip valve 9 to prepare gas for standby use;

[0070] 8) When gas is needed, the gas valve 7 can be opened at any time to take in gas.

[0071] Application Example 4

[0072] Hydrogen production

[0073] 1) Add zinc particles to the bottom of the upper chamber of the low-level kettle 1;

[0074] 2) Cover the cleaning port 3 with a lid, and close the drip valve 9 and the air valve 7;

[0075] 3) Add dilute hydrochloric acid into the high-level kettle 8;

[0076] 4) When it is observed that there is a liquid level difference between the high and low level kettles and the liquid level difference does not change with time, that is, when there is no gas leakage, open the gas valve 7;

[0077] 5) After the acid in the high-level kettle 8 flows into the low-level kettle 1, close the gas valve 7 to make gas;

[0078] 6) Open the air valve 7 to take out the air.

[0079] The above description is only a preferred specific implementation manner of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with the technical field within the technical scope disclosed by the present invention should be included in the scope of protection of the invention.

Claims

1. A simple liquid-liquid gas generator, characterized in that: It comprises a low-position kettle (1), a high-position kettle (8) and a dropping funnel (10); The upper part of the high-position kettle (8) is spherically open, and the spherical lower part is connected to the kettle connecting pipe (2); The lower end of the dropping tube of the dropping funnel (10) is connected to the circular tube (13) and the U-shaped tube (4) in sequence from top to bottom; the connection points are all sealed; the circular tube (13) is formed by four 90° bends, and a spherical container with a radius larger than the tube body is provided between the second and third bend points; The low-position kettle (1) comprises an upper chamber and a lower chamber; the low-position kettle (1) is composed of a spherical upper chamber and a hemispherical lower chamber; the upper chamber is open at the top, the connection between the upper and lower chambers shrinks inwards to form a gap between the kettle connecting pipe (2) and the U-shaped pipe (4), and the bottom of the lower chamber is sealed; a gas outlet (5) is opened on the side wall of the upper chamber; and a cleaning port (3) is opened in the lower chamber; The high-position kettle (8) is placed on the upper end of the low-position kettle (1), and the two are sealed and connected; the U-shaped tube (4) passes through the kettle connecting tube (2) and is bent back from the lower end of the kettle connecting tube (2) to the upper cavity of the low-position kettle (1); the kettle connecting tube (2) and the lower end of the U-shaped tube (4) of the high-position kettle (8) are inserted into the bottom of the low-position kettle (1).

2. A method for producing liquid-liquid gas using the simple liquid-liquid gas generator according to claim 1, characterized in that: The following steps are involved: (1) Cover the cleaning port (3) with a lid, connect the gas outlet (5) to the gas pipe with the gas valve (7), and close the drip valve (9) and the gas valve (7); (2) Select a more expensive raw material liquid from the two raw material liquids for producing gas and add it to the dropping funnel (10); (3) After observing that the drip valve (9) is not leaking, another raw material liquid with a lower price is added into the high-level kettle (8); (4) When a liquid level difference is observed between the high and low level kettles and the liquid level difference does not change over time, open the gas valve (7); (5) After all the raw material liquid in the high-level kettle (8) flows into the low-level kettle (1), close the gas valve (7); (6) Open the drip valve (9) to prepare gas; (7) Open the air valve (7) to take out air.

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