A heating type economical liquid-liquid gas generator

Abstract

The present invention discloses a heating-type economical liquid-liquid gas generator, comprising a low-level kettle (1), a high-level kettle (8), a dropping funnel (10) and a heating jacket (4). The dropping pipe of the dropping funnel (10) is connected to a circular pipe (11) and a U-shaped pipe (3) in sequence from top to bottom; the upper part of the high-level kettle (8) is spherically open, and the spherical bottom is provided with an inter-kettle connecting pipe (14); the low-level kettle (1) is a hemispherical open container, and a sieve plate (2) is provided at the bottom; the low-level kettle (1) is placed on the heating jacket; the high-level kettle (8) is placed on the low-level kettle (1), and the two are sealed and connected; the U-shaped pipe (4) passes through the lower end of the inter-kettle connecting pipe (14) of the high-level kettle (8) and bends back into the low-level kettle (1). The beneficial effects of the present invention: the automatic control of the gas production and gas extraction speed of the liquid-liquid reaction is realized, which complies with the principle of "on-the-go, on-the-go, off-the-go"; the medicine is effectively saved; and it can be used for heating reaction.

Description

Technical Field

[0001] The invention belongs to the field of chemistry and chemical engineering, and particularly relates to a 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 control the occurrence and stop of the reaction, in line with the principle of "start and use, shut down and stop". 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.

[0003] The Kipp generator is mainly composed of a spherical funnel, a gourd-shaped reaction container and an air duct. The spherical funnel is placed at the top of the gourd-shaped container, and the air duct is located at the upper sphere of the gourd-shaped container. There is a limiting valve or clamp on the air duct. The reaction platform is located at the gourd neck at the narrowest part of the middle of the gourd-shaped container. This reaction platform is based on the lower bottom of the spherical container at the upper part of the gourd-shaped container, and there is no special reaction platform. Since the volume of the spherical part at the bottom of the gourd-shaped reaction container is very large, the amount of liquid chemicals required for the reaction is too large, resulting in a waste of chemicals, and the heating reaction cannot be carried out. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a gas preparation device which can produce gas by liquid-liquid reaction, uses less liquid chemicals, and can perform heating reaction.

[0005] The technical solution provided by the present invention is as follows:

[0006] A heating-saving liquid-liquid gas generator, comprising a low-position kettle (1), a high-position kettle (8), a dropping funnel (10) and a heating jacket (4);

[0007] The dripping tube of the dripping funnel (10) is connected to the circular tube (11) and the U-shaped tube (3) in sequence from top to bottom;

[0008] The upper part of the high-position kettle (8) is spherically open, and the spherical bottom is provided with an inter-kettle connecting pipe (14);

[0009] The low-position kettle (1) is a hemispherical open container with a sieve plate (2) arranged at the bottom;

[0010] The low-position kettle (1) is placed on a heating jacket; the high-position kettle (8) is placed on the low-position kettle (1), and the two are sealed and connected; the U-shaped tube (3) passes through the lower end of the kettle connecting tube (14) of the high-position kettle (8) and is bent back into the low-position kettle (1).

[0011] Specifically, the caliber of the low-position kettle (1) gradually decreases from top to bottom; a gas outlet (5) is provided on the side wall of the low-position kettle (1); and the gas outlet (5) is connected to a gas guide pipe with a gas valve (7).

[0012] Specifically, the meandering tube (11) is formed by four 90° bends, and a spherical container having a radius greater than that of the tube body is provided between the second and third bend points.

[0013] Specifically, the lower ends of the inter-tank connecting pipe (14) and the U-shaped pipe (3) of the high-position tank (8) are inserted into the bottom of the low-position tank (1).

[0014] Specifically, the sieve plate (2) is a multi-layer sieve plate. The multi-layer sieve plate allows the gas production reaction in the lower kettle to proceed in layers, and the reaction is weakened layer by layer from top to bottom, so that the liquid entering the inter-kettle connecting pipe (14) from the bottom layer will not undergo a gas production reaction.

[0015] Another object of the present invention is to provide a method for producing gas using the above-mentioned device, including liquid-liquid gas production.

[0016] Liquid-liquid gas production steps:

[0017] (1) Close the drip valve (9) and the air valve (7);

[0018] (2) Select the more expensive of the two raw material liquids for producing gas and add it to the dropping funnel;

[0019] (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);

[0020] (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);

[0021] (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);

[0022] (6) Open the drip valve (9) to prepare gas;

[0023] (7) Open the air valve (7) to take out air.

[0024] The liquid-liquid reaction rate control principle of the device provided by the present invention is:

[0025] 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 at 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 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.

[0026] 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).

[0027] The design of the U-shaped tube (3) 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 (3) 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.

[0028] 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 (11) is to ensure the liquid sealing effect.

[0029] Compared with the Kipp generator, the lower diameter of the low-position kettle (1) of the present invention gradually decreases, while the lower diameter of the Kipp generator gradually increases, so that the former only needs less liquid to achieve liquid sealing. In addition, the heating jacket can be conveniently connected for heating.

[0030] Beneficial effects of the present invention:

[0031] (1) Automatic control of the gas production and gas extraction speed of liquid-liquid reaction is realized, which also complies with the principle of "start and use, shut and stop";

[0032] (2) Effectively save medicines;

[0033] (3) Can be used for heating reactions. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the present invention;

[0035] Figure numerals: 1-low-position kettle; 2-sieve plate; 3-U-shaped tube; 4-heating jacket; 5-gas outlet; 6-drip port; 7-gas valve; 8-high-position kettle; 9-drip valve; 10-drip funnel; 11-reciprocating tube; 12-top port; 13-low kettle port; 14-connecting pipe between kettles; 15-fixing ring. DETAILED DESCRIPTION

[0036] The present invention is described below in conjunction with specific embodiments, but the content of the present invention is not limited thereto at all.

[0037] Example 1

[0038] Figure 1 The structure of the utility model is shown.

[0039] A heating-saving liquid-liquid gas generator comprises a low-position kettle 1, a high-position kettle 8, a dropping funnel 10 and a heating jacket 4.

[0040] The dripping tube of the dripping funnel 10 is connected to the circular tube 11 and the U-shaped tube 3 in sequence from top to bottom, and the connection points are all sealed. Preferably, the top opening 12 is connected by a ground joint.

[0041] The upper part of the high-position kettle 8 is spherically open, and the spherical bottom is provided with an inter-kettle connecting pipe 14. Preferably, the high-position kettle 8 and the inter-kettle connecting pipe 14 are integrally formed.

[0042] The low-level kettle 1 is a hemispherical open container, the diameter of which gradually decreases from top to bottom, and a sieve plate 2 is provided at the bottom. A gas outlet 5 is provided on the side wall of the low-level kettle 1. In the case of liquid-liquid reaction, preferably, the sieve plate 2 is a multi-layer sieve plate. The multi-layer sieve plate allows the gas production reaction in the low-level kettle to proceed in layers, and the reaction is weakened layer by layer from top to bottom, so that the liquid entering the inter-kettle connecting pipe 14 from the bottom layer will not undergo a gas production reaction.

[0043] The low-position kettle 1 is placed on the heating sleeve 4, or a bracket is used to replace the heating sleeve 4 to support the low-position kettle 1 when heating is not required. Preferably, an annular fixing ring 15 is added to the heating sleeve or the bracket to further fix the low-position kettle 1. The high-position kettle 8 is placed on the low-position kettle 1, and the two are sealed and connected. Preferably, the low-position kettle mouth 13 is connected by a ground mouth. The U-shaped pipe 4 passes through the lower end of the inter-kettle connecting pipe 14 of the high-position kettle 8 and bends back into the low-position kettle 1.

[0044] The circular tube 11 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.

[0045] The inter-tank connecting pipe 14 of the high-position kettle 8 and the lower end of the U-shaped pipe 3 are inserted into the bottom of the low-position kettle 1 .

[0046] Application Example 1

[0047] Preparation of ammonia

[0048] 1) Prepare a saturated solution of readily soluble ammonium bicarbonate for later use;

[0049] 2) Close the drip valve 9 and the air valve 7;

[0050] 3) 20% sodium hydroxide solution is added to the dropping funnel 10;

[0051] 4) After observing and confirming that the drip valve 9 is leak-proof, add the prepared saturated ammonium bicarbonate solution into the high-level kettle 8;

[0052] 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;

[0053] 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;

[0054] 7) Open the drip valve 9 to prepare gas for standby use;

[0055] 8) When gas is needed, the gas valve 7 can be opened at any time to take gas.

[0056] Application Example 2

[0057] Production of carbon dioxide

[0058] 1) Prepare a saturated solution of readily soluble ammonium bicarbonate for later use;

[0059] 2) Close the drip valve 9 and the air valve 7;

[0060] 3) 98% concentrated sulfuric acid is added to the dropping funnel 10;

[0061] 4) After observing and confirming that the drip valve 9 is leak-proof, add the prepared saturated ammonium bicarbonate solution into the high-level kettle 8;

[0062] 5) Observe the liquid level difference between the high and low level kettles. When the liquid level difference does not change over time, i.e. when there is no gas leakage, open the gas valve 7;

[0063] 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;

[0064] 7) Open the drip valve 9 to prepare gas for standby use;

[0065] 8) When gas is needed, the gas valve 7 can be opened at any time to take in gas.

[0066] Application Example 3

[0067] Preparation of hydrogen sulfide

[0068] 1) Prepare saturated solution of easily soluble sodium sulfide for later use;

[0069] 2) Close the drip valve 9 and the air valve 7;

[0070] 3) 98% concentrated sulfuric acid is added to the dropping funnel 10;

[0071] 4) After observing and confirming that the drip valve 9 is leak-proof, add the prepared saturated sodium sulfide solution into the high-level kettle 8;

[0072] 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 air leakage, open the air valve 7;

[0073] 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;

[0074] 7) Open the drip valve 9 to prepare gas for standby use;

[0075] 8) When gas is needed, the gas valve 7 can be opened at any time to take gas.

[0076] Application Example 4

[0077] Hydrogen production

[0078] 1) Remove the dropping funnel 10, the meander tube 11 and the U-shaped tube 3;

[0079] 2) Remove the high-position kettle 8, add zinc particles onto the sieve plate 2, and then install the high-position kettle 8;

[0080] 3) Close the air valve 7;

[0081] 4) adding dilute hydrochloric acid into the high-position kettle 8;

[0082] 5) 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;

[0083] 6) After the acid solution in the high-level kettle 8 flows into the low-level kettle 1, close the gas valve 7 to make gas;

[0084] 7) Open the air valve 7 to take out the air.

[0085] 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 heating type economical liquid-liquid gas generator, characterized in that: It comprises a low-position kettle (1), a high-position kettle (8), a dropping funnel (10) and a heating jacket (4); The dripping tube of the dropping funnel (10) is connected to the circular tube (11) and the U-shaped tube (3) in sequence from top to bottom; the circular tube (11) 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 upper part of the high-position kettle (8) is spherically open, and an inter-kettle connecting pipe (14) is provided at the spherical bottom; the inter-kettle connecting pipe (14) and the lower end of the U-shaped pipe (3) of the high-position kettle (8) are inserted into the bottom of the low-position kettle (1); The low-position kettle (1) is a hemispherical open container, with a sieve plate (2) arranged at the bottom; the diameter of the low-position kettle (1) gradually decreases from top to bottom; a gas outlet (5) is arranged on the side wall of the low-position kettle (1); the gas outlet (5) is connected to a gas guide pipe with a gas valve (7); The low-level kettle (1) is placed on a heating jacket; the high-level kettle (8) is placed on the low-level kettle (1), and the two are sealed and connected; the U-shaped tube (3) passes through the lower end of the kettle-to-kettle connecting tube (14) of the high-level kettle (8) and is bent back into the low-level kettle (1); The dropping funnel (10), the meandering tube (11) and the U-shaped tube (3) are sealedly connected.

2. The heating type economical liquid-liquid gas generator according to claim 1 is characterized in that: The sieve plate (2) is a multi-layer sieve plate.

3. A method for producing liquid-liquid gas using the liquid-liquid gas generator according to claim 1, characterized in that: The following steps are involved: (1) Close the drip valve (9) and the air valve (7); (2) Select the more expensive of the two raw materials for producing gas and add it to the dropping funnel; (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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