Alkali liquor electrolysis hydrogen-oxygen separation skid-mounted device

Abstract

The utility model relates to the field of electrolytic hydrogen and oxygen production equipment, in particular to an alkali liquor electrolysis hydrogen-oxygen separation skid-mounted device which comprises an alkali liquor module, a hydrogen separation module and an oxygen separation module, the alkali liquor module comprises a first frame, an alkali liquor cooler, an alkali liquor shield pump and an alkali liquor filter, the alkali liquor cooler, the alkali liquor shield pump and the alkali liquor filter are all arranged in the first frame; the upper end of the first frame is connected with a second frame, and the hydrogen separation module and the oxygen separation module are arranged on the second frame and are respectively arranged on two sides of the upper end of the second frame. Through the arrangement modes of modularization, symmetry and the like, the layout is standardized in a limited space, so that the safety distance between equipment is ensured, and the whole is exquisite, the layout layers are distinct, the flow is smooth, and pipelines are clear; in addition, assembly, hoisting and transportation are facilitated, and enough operation space is reserved for subsequent inspection and maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic hydrogen and oxygen production equipment, and particularly relates to an alkali solution electrolytic hydrogen and oxygen separation skid-mounted device. Background Art

[0002] The alkali solution electrolytic hydrogen separation module is a device for separating alkali solution from oxygen and alkali solution from hydrogen after alkali solution electrolytic hydrogen production. It is a process that separates gas and liquid through a separation tank, and the gas goes through a series of processes such as washing and cooling to meet the preliminary requirements, while the alkali solution flows out from the bottom of the separation tank, is pressurized by a canned motor pump, cooled by a condenser, and finally returns to the electrolytic cell for reuse.

[0003] The above process is a relatively mature and stable process in the current market. However, the layout of the separation modules on the market is chaotic, with various styles emerging in an endless stream. Some only consider the miniaturization of the space scale and do not design the process flow sequence; some only arrange according to the sequence of the process, without taking into account the professional characteristics, which is not convenient for subsequent assembly, hoisting and transportation, inspection and maintenance, etc. Therefore, how to set the spatial positions and connection methods of the various equipment of the alkali solution electrolytic hydrogen and oxygen separation skid-mounted device is a problem that needs to be considered by those skilled in the art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an alkali solution electrolytic hydrogen and oxygen separation skid-mounted device to solve the problems in the prior art that the positions and connections of the various equipment of the alkali solution electrolytic hydrogen and oxygen separation device are unreasonable, which is not conducive to assembly, transportation, inspection and maintenance, etc.

[0005] The technical solution of the utility model is: an alkali solution electrolytic hydrogen and oxygen separation skid-mounted device, including an alkali solution module, a hydrogen separation module and an oxygen separation module. The alkali solution module includes a first frame, an alkali solution cooler, an alkali solution canned motor pump and an alkali solution filter. The alkali solution cooler, the alkali solution canned motor pump and the alkali solution filter are all arranged inside the first frame. The upper end of the first frame is connected with a second frame. The hydrogen separation module and the oxygen separation module are arranged on the second frame and are respectively arranged on both sides of the upper end of the second frame.

[0006] Preferably, the first frame includes a first base and a first support. The first base and the first support jointly form a cubic space. The alkali solution cooler, the alkali solution canned motor pump and the alkali solution filter are all fixedly connected to the first base and are all arranged inside the space near the edge.

[0007] Preferably, the second frame includes a second base and a second support. The second base is connected to the upper end of the first support. The second support is connected to the middle of the upper end of the second base. The hydrogen separation module and the oxygen separation module are respectively arranged on both sides of the second support.

[0008] Preferably, the hydrogen separation module includes a hydrogen separation tank, a hydrogen scrubber, a hydrogen cooler, a hydrogen liquid separation tank, and a hydrogen blowdown tank connected in sequence through pipelines. The hydrogen separation tank is connected to the second base, and the hydrogen scrubber is arranged on the second bracket and above the hydrogen separation tank; the hydrogen cooler, the hydrogen liquid separation tank, and the hydrogen blowdown tank are all connected to the second bracket, and the hydrogen liquid separation tank is arranged above the hydrogen blowdown tank.

[0009] Preferably, the oxygen separation module includes an oxygen separation tank, an oxygen scrubber, an oxygen cooler, an oxygen liquid separation tank, and an oxygen blowdown tank connected in sequence through pipelines. The oxygen separation tank is connected to the second base, and the oxygen scrubber is arranged on the second bracket and above the oxygen separation tank; the oxygen cooler, the oxygen liquid separation tank, and the oxygen blowdown tank are all connected to the second bracket, and the oxygen liquid separation tank is arranged above the oxygen blowdown tank.

[0010] Preferably, the hydrogen separation tank, the hydrogen scrubber, the hydrogen cooler, the hydrogen liquid separation tank, and the hydrogen blowdown tank are respectively arranged corresponding to and symmetrically with the oxygen separation tank, the oxygen scrubber, the oxygen cooler, the oxygen liquid separation tank, and the oxygen blowdown tank.

[0011] Preferably, first hanger brackets are arranged on both sides of the first bracket, and at least two first hanger brackets are arranged on each side; second hanger brackets are arranged on both sides of the second base, and at least two second hanger brackets are arranged on each side.

[0012] Compared with the prior art, the advantages of the present utility model are:

[0013] (1) Through modular and symmetric settings, etc., the layout is standardized within a limited space, which not only ensures the safety distance between each device but also makes the overall structure delicate, the layout hierarchical, the process smooth, and the pipeline clear; in addition, it is convenient for assembly, hoisting and transportation, and also leaves enough operating space for subsequent inspection and maintenance.

[0014] (2) In the present utility model, the oxygen separation tank (or hydrogen separation tank) and the oxygen scrubber (or hydrogen scrubber) are separately arranged and connected through pipelines. Compared with the traditional integral setting, the pressure load on the separation tank is reduced, the difficulty of overhaul, maintenance or replacement of the separation tank is reduced, and at the same time, the overall occupied space of the device is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0016] Figure 1 It is a schematic structural diagram of the lye electrolysis hydrogen-oxygen separation skid-mounted device described in the present utility model;

[0017] Figure 2This is the front view structural schematic diagram of the lye electrolysis hydrogen-oxygen separation skid-mounted device described in the present utility model;

[0018] Figure 3 This is the structural schematic diagram of the positional relationship of each device in the hydrogen separation module and the oxygen separation module described in the present utility model;

[0019] Figure 4 This is the structural schematic diagram of the positional relationship of each device in the lye module described in the present utility model.

[0020] Among them: lye module 1, first frame 11, first base 111, first support 112, first hanger 1121, lye cooler 12, lye canned motor pump 13, lye filter 14;

[0021] Hydrogen separation module 2, hydrogen separation tank 21, hydrogen scrubber 22, hydrogen cooler 23, hydrogen gas-liquid separation tank 24, hydrogen blowdown tank 25;

[0022] Oxygen separation module 3, oxygen separation tank 31, oxygen scrubber 32, oxygen cooler 33, oxygen gas-liquid separation tank 34, oxygen blowdown tank 35;

[0023] Second frame 4, second base 41, second hanger 411, second support 42. Specific embodiments

[0024] The following combines specific embodiments to further elaborate in detail on the content of the present utility model:

[0025] As Figures 1-4 shown, the present utility model is applied to the separation of lye from oxygen and lye from hydrogen in the lye electrolysis hydrogen production process. The whole is divided into three modules: a lye module, a hydrogen separation module, and an oxygen separation module. Among them, the lye module is arranged in the first frame, and the hydrogen separation module and the oxygen separation module are arranged in the second frame above the first frame. During disassembly, installation, and transportation, hoisting and transportation can be carried out through the first frame and the second frame respectively; in addition, the well-organized layout is clear at a glance, making the pipeline situation clear, which is not only beautiful, convenient for disassembly, installation, and maintenance, but also reduces the overall volume. Specifically:

[0026] A lye electrolysis hydrogen-oxygen separation skid-mounted device includes a lye module 1, a hydrogen separation module 2, and an oxygen separation module 3. The lye module 1 includes a first frame 11, a lye cooler 12, a lye canned motor pump 13, and a lye filter 14. The first frame 11 includes a first base 111 and a first support 112, and the first base 111 and the first support 112 jointly form a cubic space.

[0027] In this embodiment, the lye cooler 12 needs to be considered for convenient disassembly and assembly. Therefore, it is installed on one side above the first base 111. The total length of the first frame 11 is slightly greater than the length of the lye cooler 12, which can be controlled within 10 - 20 mm. This can not only ensure that it is within the frame range, but also does not occupy too much space and is convenient for disassembly and assembly. There are two lye canned motor pumps, and a certain distance needs to be set between them for easy maintenance. In this embodiment, the distance between them can be set between 300 - 500 mm. The lye filter 14 is arranged on the side opposite to the lye canned motor pump 13, which is beneficial to the overall pipeline layout and is closer to the side of the first frame 11, making it more convenient to frequently replace and clean the filter screen.

[0028] The upper end of the first frame 11 is connected to the second frame 4. The hydrogen separation module 2 and the oxygen separation module 3 are arranged on the second frame 4 and are respectively arranged on both sides of the upper end of the second frame 4. The second frame 4 includes a second base 41 and a second bracket 42. The second base 41 is connected to the upper end of the first bracket 112; the second bracket 42 is connected to the middle of the upper end of the second base 41, and the hydrogen separation module 2 and the oxygen separation module 3 are respectively arranged on both sides of the second bracket 42.

[0029] The hydrogen separation module 2 includes a hydrogen separation tank 21, a hydrogen scrubber 22, a hydrogen cooler 23, a hydrogen liquid separation tank 24, and a hydrogen blowdown tank 25 connected in sequence through pipelines. The hydrogen separation tank 21 is connected to the second base 41. The hydrogen scrubber 22 is arranged on the second bracket 42 and above the hydrogen separation tank 21; the hydrogen cooler 23, the hydrogen liquid separation tank 24, and the hydrogen blowdown tank 25 are all connected to the second bracket 42, and the hydrogen liquid separation tank 24 is arranged above the hydrogen blowdown tank 25.

[0030] The oxygen separation module 3 includes an oxygen separation tank 31, an oxygen scrubber 32, an oxygen cooler 33, an oxygen liquid separation tank 34, and an oxygen blowdown tank 35 connected in sequence through pipelines. The oxygen separation tank 31 is connected to the second base 41. The oxygen scrubber 32 is arranged on the second bracket 42 and above the oxygen separation tank 31; the oxygen cooler 33, the oxygen liquid separation tank 34, and the oxygen blowdown tank 35 are all connected to the second bracket 42, and the oxygen liquid separation tank 34 is arranged above the oxygen blowdown tank 35.

[0031] In this embodiment, hydrogen and oxygen are electrolyzed from lye. Hydrogen is flammable and explosive, and oxygen is a combustion-supporting substance. Both belong to substances with dangerous characteristics, so isolation is required. And in this process, the separation processes and equipment for hydrogen and oxygen are the same. Therefore, the hydrogen separation module 2 and the oxygen separation module 3 are arranged symmetrically, which can not only isolate the two, but also make the layout more hierarchical, delicate and beautiful, and convenient for pipeline setting at the same time.

[0032] It should be noted that, in this embodiment, the hydrogen scrubber 22 (or the oxygen scrubber 32) is separately arranged from the hydrogen separation tank 21 (or the oxygen separation tank 31) and connected by pipelines. Compared with the prior art where the hydrogen scrubber 22 is directly placed on the upper part of the hydrogen separation tank 21, multiple problems are avoided: First, the hydrogen separation tank 21 is a pressure vessel. Separating it from the hydrogen scrubber 22 is equivalent to reducing the additional load, thus reducing the risk. Second, the hydrogen separation tank 21 is a nickel-plated carbon steel container with a high frequency of replacement and maintenance. Separating it from the hydrogen scrubber 22 reduces the difficulty of disassembly and assembly. Additionally, the separate arrangement allows the hydrogen scrubber 22 to be directly docked with the hydrogen cooler 23, which can reduce the height of the overall equipment and further reduce the occupied space of the overall equipment.

[0033] In addition, first hanger brackets 1121 are arranged on both sides of the first support 112, and at least two first hanger brackets 1121 are provided on each side; second hanger brackets 411 are arranged on both sides of the second base 41, and at least two second hanger brackets 411 are provided on each side. The two first hanger brackets 1121 and the two second hanger brackets 411 are respectively arranged on both sides, ensuring stable hoisting during transportation.

[0034] The above embodiments are only used to illustrate the technical concept and features of the present invention. The purpose is to enable those familiar with this technology to understand the content of the present invention and implement it accordingly, and it should not be used to limit the protection scope of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.

Claims

1. An electrolytic lye hydrogen-oxygen separation skid-mounted device, characterized in that: It includes an alkali solution module, a hydrogen separation module and an oxygen separation module. The alkali solution module includes a first frame, an alkali solution cooler, an alkali solution canned motor pump and an alkali solution filter. The alkali solution cooler, the alkali solution canned motor pump and the alkali solution filter are all arranged inside the first frame. The upper end of the first frame is connected to a second frame. The hydrogen separation module and the oxygen separation module are arranged on the second frame and are respectively arranged on both sides of the upper end of the second frame.

2. The lye electrolysis hydrogen-oxygen separation skid-mounted device according to claim 1, characterized in that: The first frame includes a first base and a first support. The first base and the first support jointly form a cubic space. The alkali solution cooler, the alkali solution canned motor pump and the alkali solution filter are all fixedly connected to the first base and are all arranged inside the space near the edge.

3. The lye electrolysis hydrogen-oxygen separation skid-mounted device according to claim 2, characterized in that: The second frame includes a second base and a second support. The second base is connected to the upper end of the first support. The second support is connected to the middle of the upper end of the second base. The hydrogen separation module and the oxygen separation module are respectively arranged on both sides of the second support.

4. A lye electrolysis hydrogen-oxygen separation skid-mounted device according to claim 3, characterized in that: The hydrogen separation module includes a hydrogen separation tank, a hydrogen scrubber, a hydrogen cooler, a hydrogen liquid separation tank and a hydrogen blowdown tank which are connected in sequence through pipelines. The hydrogen separation tank is connected to the second base. The hydrogen scrubber is arranged on the second support and above the hydrogen separation tank. The hydrogen cooler, the hydrogen liquid separation tank and the hydrogen blowdown tank are all connected to the second support. The hydrogen liquid separation tank is arranged above the hydrogen blowdown tank.

5. The lye electrolysis hydrogen-oxygen separation skid-mounted device according to claim 4, characterized in that: The oxygen separation module includes an oxygen separation tank, an oxygen scrubber, an oxygen cooler, an oxygen liquid separation tank and an oxygen blowdown tank which are connected in sequence through pipelines. The oxygen separation tank is connected to the second base. The oxygen scrubber is arranged on the second support and above the oxygen separation tank. The oxygen cooler, the oxygen liquid separation tank and the oxygen blowdown tank are all connected to the second support. The oxygen liquid separation tank is arranged above the oxygen blowdown tank.

6. The lye electrolysis hydrogen-oxygen separation skid-mounted device according to claim 5, characterized in that: The hydrogen separation tank, the hydrogen scrubber, the hydrogen cooler, the hydrogen liquid separation tank and the hydrogen blowdown tank are respectively arranged corresponding to and symmetrically with the oxygen separation tank, the oxygen scrubber, the oxygen cooler, the oxygen liquid separation tank and the oxygen blowdown tank.

7. The lye electrolysis hydrogen-oxygen separation skid-mounted device according to claim 6, characterized in that: First hanger brackets are arranged on both sides of the first support, and at least two first hanger brackets are arranged on each side. Second hanger brackets are arranged on both sides of the second base, and at least two second hanger brackets are arranged on each side.

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