CN110681176A - An electrically heated gas-liquid separator - Google Patents

Abstract

The invention relates to an electrically heatable gas-liquid separator, comprising a heating component and a gas-liquid separation component located outside the heating component; the heating component comprises a protective casing, a heating wire, a flange cover and a fixing flange; the protective casing It includes a cylinder body and an elliptical head, the elliptical head is sealed at the top of the cylinder, the bottom of the cylinder is connected to a fixed flange, the bottom of the fixed flange is connected with a flange cover, and a junction box is fixed under the flange cover. There is a U-shaped heating wire inside, and the bottom end of the heating wire enters the junction box through the flange cover; the gas-liquid separation component includes an outer casing, and the outer casing includes an upper elliptical head arranged in sequence from top to bottom , the middle cylinder and the lower elliptical head, wherein the upper elliptical head is connected with a gas outlet flange, the middle is connected with an electrolyte liquid inlet flange, and most of the protective shell extends into the middle cylinder through the lower elliptical head . The invention has high integration degree and good separation effect.

Description

An electrically heated gas-liquid separator

technical field

The invention relates to the field of hydrogen production by electrolysis of water, in particular to an electrically heated gas-liquid separator.

Background technique

Hydrogen energy is popular because of its high calorific value, clean and pollution-free, and can be used as an energy storage medium, making it an ideal energy source. Hydrogen production by electrolysis of water is valued because the hydrogen produced is of high purity and other energy sources can be stored in hydrogen through electrolysis. The gas-liquid separator is the key equipment in the water electrolysis hydrogen production device. On the one hand, the mixture of hydrogen and liquid produced by electrolysis must be separated by this equipment, and on the other hand, the electrolytic liquid needs to stay in the equipment for a short time. Temperature is the first factor that determines the efficiency of hydrogen production from water electrolysis. In practice, the temperature of the electrolytic liquid is often too low during the startup and operation of the electrolytic water hydrogen production device. It takes a long time to wait for the device to heat up and run stably, which is not conducive to the rapid response of the electrolytic water hydrogen production equipment.

Therefore, it is of great practical value to develop a gas-liquid separation device that can heat up rapidly.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the above-mentioned deficiencies in the prior art.

In order to achieve the above purpose, an embodiment of the present invention provides an electrically heatable gas-liquid separator, including a heating assembly and a gas-liquid separation assembly located outside the heating assembly; the heating assembly includes a protective casing, a flange cover and a fixing method. The protective shell includes a cylinder body and an elliptical head, the elliptical head is connected to the top of the cylinder, the bottom of the cylinder is connected to a fixed flange, and the bottom of the fixed flange is connected to a flange cover, the flange cover A junction box is fixed below, a wiring hole is arranged on the junction box, a heating wire is arranged inside the cylinder, and the heating wire is in an inverted U shape. cover the flange; the gas-liquid separation assembly includes an outer casing, the outer casing includes a middle cylinder, an upper elliptical head and a lower elliptical head located at the upper and lower ends of the middle cylinder, wherein the upper elliptical head is connected with a gas outlet Flange, the middle part of the middle cylinder is connected with an electrolytic liquid inlet flange, and most of the protective shell protrudes into the middle cylinder through the lower elliptical head, and the lower elliptical head is also connected with a liquid outlet flange.

In a possible embodiment, the upper circular flange is connected to the gas outlet flange through a gas outlet pipe.

In a possible further embodiment, the middle part of the intermediate cylinder is connected to the electrolyte liquid inlet flange through the electrolyte liquid inlet pipe.

In a possible embodiment, the lower elliptical head is also connected with a liquid outlet flange through a liquid outlet pipe.

In a possible further embodiment, a filter screen is also provided inside the intermediate cylinder, and the filter screen is installed outside the heating assembly, located on the upper side of the electrolyte liquid inlet pipe, and is lower than the gas outlet pipe at the top.

Preferably, the part of the heating wire located in the junction box is connected to the electric wire, and the electric wire is connected to the power source through the connection hole.

Beneficial effects of the present invention:

1) High degree of integration. The electric heating device is combined with the gas-liquid separation device, and the electrolytic liquid is directly heated by the electric heating device, so that the electrolyzed water hydrogen production equipment can be heated rapidly, and the temperature of the equipment can be controlled by adjusting the heating power of the heating wire.

2) The separation effect is good. There is a filter screen inside the equipment, which can condense the water mist in the hydrogen gas formed at a higher temperature and improve the effect of gas-liquid separation.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of an electrically heated gas-liquid separator provided by an embodiment of the present invention;

Description of reference numbers:

1-gas outlet flange, 2-gas outlet pipe, 3-upper oval head, 4-filter screen, 5-electrolyte liquid inlet flange, 6-electrolyte liquid inlet pipe, 7-intermediate cylinder, 8-lower oval Head, 9-Fixed flange, 10-Flange cover, 11-Terminal box, 12-Wiring hole, 13-Liquid outlet flange, 14-Liquid outlet pipe, 15-Cylinder body, 16-Heating wire, 17- Oval head.

Detailed ways

The terms "first", "second" and the like in the description embodiments and claims of the present invention and the drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, eg, comprising a series of steps or elements. A method, system, product or device is not necessarily limited to those steps or units expressly listed, but may include other steps or units not expressly listed or inherent to the process, method, product or device.

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

As shown in FIG. 1 , an embodiment of the present invention provides an electrically heatable gas-liquid separator, which includes a heating component and a gas-liquid separation component located outside the heating component.

The heating assembly includes a protective casing, a flange cover 10 , a fixed flange 9 and a heating wire 16 .

The protective shell includes a cylindrical body 15 and an elliptical head 17, the elliptical head 17 is connected to the top of the cylindrical body 15, the bottom end of the cylindrical body 15 is connected to the fixed flange 9, and the bottom surface of the fixed flange 9 is connected with a flange cover 10, A junction box 11 is fixed below the flange cover 10 , a junction box 11 is provided with a wiring hole 12 , a heating wire 16 is arranged inside the cylinder 15 , the heating wire 16 is in an inverted U shape, and the bottom end of the heating wire 16 passes through the flange The cover 10 enters into the junction box 11 , and the heating wire 16 is fixed on the flange cover 10 .

The gas-liquid separation assembly includes an outer casing, and the outer casing includes a middle cylinder 7 and an upper elliptical head 3 and a lower elliptical head 8 located at the upper and lower ends of the middle cylinder 7, wherein the upper elliptical head 3 passes through the gas outlet pipe. 2 is connected with the gas outlet flange 1, the middle part of the intermediate cylinder 7 is connected with the electrolytic liquid inlet flange 5 through the electrolytic liquid inlet pipe 6, and most of the protective shell extends into the intermediate cylinder 7 through the lower elliptical head 8 , the lower elliptical head 8 is also connected with a liquid outlet flange 13 through a liquid outlet pipe 14 . The separated hydrogen leaves from the gas outlet at the top, and the electrolytic liquid leaves from the liquid outlet flange 13 at the bottom.

In one example, a filter screen 4 is also provided inside the intermediate cylinder 7, and the filter screen 4 is installed on the outside of the heating assembly, on the upper side of the electrolytic liquid inlet pipe 6, and at the same time lower than the gas outlet at the top. The water mist is filtered by the filter screen 4, so as to condense and fall.

In one example, the power supply heats the device by connecting the heating wire 16, and the heating temperature can be adjusted in the range of 30°C-100°C.

The protective shell has good heat transfer effect, separates the heating wire 16 from gas and liquid, and protects the heating assembly. The liquid condensed on the inner upper side can slide down the edge of the elliptical head 17 to the bottom of the device.

In an example, the height of the electrolytic liquid inlet pipe 6 needs to be determined by calculation of the separation effect. The liquid from the electrolytic cell enters the separator through the pipe, the liquid goes down, and the hydrogen goes up.

The operation method of the device is further described below in conjunction with the accompanying drawings:

1) Pass the wire through the wiring hole 12 in advance and connect it with the heating wire 16 in the junction box 11 .

2) The device is installed upright on the electrolysis water hydrogen production processing frame, the electrolytic liquid inlet flange 5 is connected with the liquid outlet side of the electrolytic cell, the liquid outlet flange 13 is connected with the liquid inlet side of the electrolytic cell, and the gas outlet flange 1 is connected with the hydrogen gas Handle subsequent device connections.

3) Turn on the electrolytic water hydrogen production device, make the amount of electrolytic liquid reach the specified liquid level of the heatable gas-liquid separator, connect the heating wire power supply, and heat the electrolytic liquid.

4) Turn on the power of the electrolyzer and start electrolysis to produce hydrogen.

The advantages of the present invention are:

1) High degree of integration. The electric heating device is combined with the gas-liquid separation device, and the electrolytic liquid is directly heated by the electric heating device, so that the electrolyzed water hydrogen production equipment can be heated rapidly, and the temperature of the equipment can be controlled by adjusting the heating power of the heating wire.

2) The separation effect is good. There is a filter screen inside the equipment, which can condense the water mist in the hydrogen gas formed at a higher temperature and improve the effect of gas-liquid separation.

The above specific embodiments further describe the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Within the spirit and principle of the present invention, any modifications, equivalent replacements, improvements, etc. made should be included within the protection scope of the present invention.

Claims (6)

1. An electrically-heatable gas-liquid separator, characterized in that it comprises a heating assembly and a gas-liquid separation assembly located outside the heating assembly; The heating assembly comprises a protective casing, a flange cover (10), a fixing flange (9) and a heating wire (16); The protective casing comprises a cylinder body (15) and an elliptical head (17), the elliptical head (17) is connected to the top end of the cylinder body (15), and the bottom end of the cylinder body (15) is connected to a fixing flange (9) , the bottom surface of the fixed flange (9) is connected with a flange cover (10), a junction box (11) is fixed under the flange cover (10), and a wiring hole (12) is arranged on the junction box (11), and the cylinder ( 15) is provided with a heating wire (16) inside, the heating wire (16) is in an inverted U shape, the bottom end of the heating wire (16) passes through the flange cover (10) and enters the junction box (11), and the heating wire ( 16) fixed on the flange cover (10); The gas-liquid separation assembly includes an outer casing, and the outer casing includes a middle cylinder (7) and an upper elliptical head (3) and a lower elliptical head (8) located at the upper and lower ends of the middle cylinder (7), wherein, A gas outlet flange (1) is connected above the upper elliptical head (3), an electrolyte liquid inlet flange (5) is connected to the middle of the middle cylinder (7), and most of the protection shell passes through the lower elliptical head ( 8) It extends into the middle cylinder (7), and the lower elliptical head (8) is also connected with a liquid outlet flange (13). 2 . The electrically heatable gas-liquid separator according to claim 1 , wherein the upper elliptical head ( 3 ) is connected to the gas outlet flange ( 1 ) through a gas outlet pipe ( 2 ). 3 . 3. The electrically-heatable gas-liquid separator according to claim 2, wherein the middle of the intermediate cylinder (7) is connected to the electrolyte inlet flange (5) through an electrolyte inlet pipe (6). ). 4 . The electrically heatable gas-liquid separator according to claim 1 , wherein the lower elliptical head ( 8 ) is further connected with a liquid outlet flange ( 13 ) through a liquid outlet pipe ( 14 ). 5 . 5. The electrically-heatable gas-liquid separator according to claim 3, characterized in that, a filter screen (4) is also provided inside the intermediate cylinder (7), and the filter screen (4) is installed on the The outer side of the heating assembly is located on the upper side of the electrolyte liquid inlet pipe (6), and is lower than the gas outlet pipe (2) at the top. 6 . The electrically heatable gas-liquid separator according to claim 1 , wherein the heating wire ( 16 ) is located in a part of the junction box and is connected to an electric wire, and the electric wire is connected to a power source through the connection hole. 7 .

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