Gas-liquid separator

Abstract

The utility model discloses a gas-liquid separator, and relates to the technical field of gas-liquid separation, the gas-liquid separator comprises a separator body, a first connecting pipe section, a second connecting pipe section and a plurality of detection devices; a first pipe orifice and a second pipe orifice are formed in the separator body at an interval; the first connecting pipe section is communicated with the first pipe orifice, and a plurality of first detection interfaces are formed in the first connecting pipe section; the second connecting pipe section is communicated with the second pipe orifice, and a plurality of second detection interfaces are formed in the second connecting pipe section; each piece of detection equipment is provided with a first detection end and a second detection end, and the first detection end of each piece of detection equipment is connected with one first detection interface; the second detection end of each detection device is connected with one second detection interface. Only the first pipe orifice and the second pipe orifice are arranged, so that the detection requirements of a plurality of detection devices can be met, the problem that the gas-liquid separator is damaged due to the arrangement of the plurality of detection devices is effectively solved, and the stability and the strength of the gas-liquid separator are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas-liquid separation, in particular to a gas-liquid separator. BACKGROUND

[0002] As key core equipment for hydrogen production by water electrolysis, gas-liquid separators such as hydrogen separators and oxygen separators need to be provided with a large number of detection devices, and the sensitivity and reliability of the detection devices provided on the gas-liquid separator will affect the safety of the gas-liquid separation and purification unit for hydrogen production by water electrolysis.

[0003] In related technologies, when multiple detection devices are provided on a gas-liquid separator, the gas-liquid separator will be damaged. UTILITY MODEL CONTENT

[0004] The main purpose of the present application is to provide a gas-liquid separator, which aims to solve the problem that the arrangement of multiple detection devices will damage the gas-liquid separator.

[0005] In one aspect, a gas-liquid separator is provided, which comprises:

[0006] a separator body, which is provided with a first pipe opening and a second pipe opening at intervals;

[0007] a first connecting pipe section, which is in communication with the first pipe opening, and a plurality of first detection interfaces are formed in the first connecting pipe section;

[0008] a second connecting pipe section, which is in communication with the second pipe opening, and a plurality of second detection interfaces are formed in the second connecting pipe section;

[0009] a plurality of detection devices, each of which has a first detection end and a second detection end, the first detection end of each detection device is connected to a first detection interface, and the second detection end of each detection device is connected to a second detection interface, and the detection devices are used to detect the liquid level of the separator body.

[0010] In one embodiment, the first connecting pipe section and the first pipe opening of the separator body are arranged at a first reference surface;

[0011] the second connecting pipe section and the second pipe opening of the separator body are arranged at a second reference surface;

[0012] The first reference surface and the second reference surface are located at different horizontal heights.

[0013] In one embodiment, the first reference surface and the second reference surface are parallel to each other.

[0014] In one embodiment, the gas-liquid separator further comprises a support member;

[0015] The support is arranged on the separator body at a position corresponding to the first pipe opening;

[0016] The support is arranged on the separator body at a position corresponding to the second pipe opening.

[0017] In an embodiment, the gas-liquid separator is applied to an electrolytic cell, and the detection devices include liquid level gauges for detecting liquid levels of the separator body.

[0018] The gas-liquid separator further includes a first electric control assembly electrically connected with the electrolytic cell and the liquid level gauges.

[0019] The first electric control assembly is configured to control an operating state of the electrolytic cell according to the liquid levels detected by the liquid level gauges.

[0020] In an embodiment, the first electric control assembly includes:

[0021] a plurality of first comparators, first input terminals of the first comparators are electrically connected with the liquid level gauges one by one, and second input terminals of the first comparators are configured to be connected with first reference liquid levels; each first comparator is configured to compare a liquid level detected by a liquid level gauge with a corresponding first reference liquid level and output a first comparison result;

[0022] a plurality of second comparators, first input terminals of the second comparators are electrically connected with the liquid level gauges one by one, and second input terminals of the second comparators are configured to be connected with second reference liquid levels; each second comparator is configured to compare a liquid level detected by a liquid level gauge with a corresponding second reference liquid level and output a second comparison result; the first reference liquid level has a higher height than the second reference liquid level.

[0023] a first controller connected with output terminals of the first comparators and output terminals of the second comparators, the first controller being configured to control an operating state of the electrolytic cell according to the first comparison results and the second comparison results.

[0024] In an embodiment, the first electric control assembly further includes a second controller connected with an output terminal of any one of the first comparators and an output terminal of any one of the second comparators.

[0025] The second controller is configured to control an operating state of the electrolytic cell according to a first comparison result output by the connected first comparator and a second comparison result output by the connected second comparator.

[0026] In an embodiment, part of the plurality of detection devices are used to display the liquid level of the separator body.

[0027] In an embodiment, the gas-liquid separator further comprises a switch valve, at least part of the plurality of first detection interfaces and the plurality of second detection interfaces are provided with the switch valve, and the switch valve is used to open or close the corresponding detection interface.

[0028] In an embodiment, the detection interface is provided with a first flange, the switch valve is provided with a second flange, and the switch valve is connected with the first flange of the corresponding detection interface through the second flange.

[0029] The one or more technical solutions in the embodiments of the present application have at least one of the following technical effects:

[0030] The technical solution of the present application can meet the detection requirements of the plurality of detection devices by opening the first pipe opening and the second pipe opening on the separator body, connecting the first detection end of the plurality of detection devices with the first pipe segment connected with the first pipe opening, and connecting the second detection end of the plurality of detection devices with the second pipe segment connected with the second pipe opening. Only the first pipe opening and the second pipe opening can meet the detection requirements of the plurality of detection devices, effectively reducing the number of openings on the separator body and the processing cost; solving the problem that the setting of the plurality of detection devices can damage the gas-liquid separator, improving the stability and strength of the gas-liquid separator, and prolonging the service life of the equipment;

[0031] The plurality of detection devices share the first connecting pipe segment and the second connecting pipe segment, which can realize centralized design, provide installation and maintenance space for the plurality of detection devices through the first connecting pipe segment and the second connecting pipe segment, and also facilitate later maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings from the structures shown in the drawings without creative labor.

[0033] Figure 1 The structure schematic diagram of an embodiment of the gas-liquid separator provided by the present application;

[0034] Figure 2 The module schematic diagram of an embodiment of the first electric control assembly provided by the present application.

[0035] EXPLANATION OF DRAWINGS:

[0036] 100, separator body;

[0037] 210, first connecting pipe section; 220, second connecting pipe section;

[0038] 300, detection device; 310, liquid level meter;

[0039] 410, first discharge part; 420, second discharge part;

[0040] 511, first comparator; 512, second comparator; 520, first controller; 530, second controller;

[0041] 600, electrolytic cell.

[0042] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0044] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0045] In addition, if the embodiments of the present application involve descriptions of “first”, “second”, etc., the descriptions of “first”, “second”, etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first” and “second” can explicitly or implicitly include at least one of the features. In addition, “and / or” or “and / or” appearing throughout the text means that the three parallel schemes are included, for example, “A and / or B” includes A scheme, or B scheme, or A and B are satisfied at the same time. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of a person skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present application.

[0046] As key core equipment of water electrolysis hydrogen production, gas-liquid separators such as hydrogen separators and oxygen separators need to be provided with a large number of detection devices such as liquid level meters and flow meters. The sensitivity and reliability of the detection devices provided on the gas-liquid separator will affect the safety of the water electrolysis hydrogen production-gas-liquid separation and purification unit.

[0047] Taking a liquid level meter as an example, in industrial production, in order to cope with problems such as the liquid level meter being unable to effectively detect due to failure, damage, etc., multiple liquid level meters need to be provided on the gas-liquid separator to still be able to detect the liquid level through other liquid level meters when some of the liquid level meters have problems, so as to reduce safety problems caused by liquid level detection interruption or failure.

[0048] Providing detection devices such as liquid level meters requires opening pipe openings on the gas-liquid separator. When multiple detection devices are provided on the gas-liquid separator, the related art generally opens multiple pipe openings on the separator body (container) of the gas-liquid separator corresponding to multiple detection ends of the detection devices. This setting method may have the following or other problems and cause damage:

[0049] Affecting the bearing capacity of the gas-liquid separator: the pipe openings will weaken the continuity of the container shell to some extent, making the material weak, and opening too many pipe openings will weaken the wall thickness of the pressure container, thereby causing the bearing capacity of the gas-liquid separator to decrease;

[0050] Cracks: opening pipe openings is equivalent to forming a local stress concentration on the wall of the pressure container, and too many pipe openings will increase the stress concentration degree, which may cause the local stress value of the container to exceed the allowable value, thereby causing plastic deformation and cracks of the gas-liquid separator; fatigue cracks may be formed at the crack source, causing the container to fail prematurely and affecting the service life;

[0051] Welding defects and fatigue damage: after the container is opened, the detection devices may be connected to the pipe openings through welding, but various welding defects (such as incomplete fusion, incomplete penetration, cracks, etc.) may be generated in the base material and the weld during welding of the pipe openings. These defects are fatigue sources and will directly accelerate the fatigue damage of the container; since there are defects in the welded joints, they will gradually expand under load until they break. Welding defects are fatigue sources and will also accelerate the fatigue damage of the container.

[0052] In order to solve the problem that the setting of multiple detection devices will cause damage to the gas-liquid separator, some embodiments of the present application propose a gas-liquid separator.

[0053] As Figure 1As shown, the gas-liquid separator includes a separator body 100, a first connecting pipe section 210, a second connecting pipe section 220, and a plurality of detection devices 300. The plurality of detection devices 300 can be used to detect a plurality of parameters (such as liquid level, pressure, temperature, flow rate) in the separator body 100. The types of the plurality of detection devices 300 can be the same or different. For example, a plurality of liquid level meters 310 can be provided. When some of the liquid level meters cannot effectively detect the liquid level, other liquid level meters can be used to detect the liquid level, thereby avoiding detection interruption and detection failure to some extent, improving the stability of detection, and further optimizing the stability and safety of the gas-liquid separator and the hydrogen production device to which the gas-liquid separator is applied.

[0054] The separator body 100 is spaced apart to define a first pipe opening L1 and a second pipe opening L2. The first connecting pipe section 210 is in communication with the first pipe opening L1, and a plurality of first detection interfaces are defined in the first connecting pipe section 210. The second connecting pipe section 220 is in communication with the second pipe opening L2, and a plurality of second detection interfaces are defined in the second connecting pipe section 220.

[0055] The liquid flow in the separator body 100 and the external impact vibration on the separator body 100 can affect the stability of the medium. The detection end of the detection device 300 directly detects through the pipe opening defined in the separator body 100, and the detection can be disturbed. The first connecting pipe section 210 and the second connecting pipe section 220 can act as a buffer to stabilize the medium before it reaches the detection end, thereby improving the detection accuracy.

[0056] For example, the first detection interfaces are formed by opening holes in the first connecting pipe section 210, and the second detection interfaces are formed by opening holes in the second connecting pipe section 220. The number of the first detection interfaces is not less than the number of the detection devices 300. When the number of the first detection interfaces is greater than the number of the detection devices 300, the excess detection interfaces can be plugged or a switch valve can be provided on the detection interfaces to close the detection interfaces. The implementation of the second detection interfaces can refer to the first detection interfaces and will not be described again.

[0057] Each detection device 300 of the plurality of detection devices 300 has a first detection end and a second detection end. The first detection end of each detection device 300 is connected to a first detection interface. The second detection end of each detection device 300 is connected to a second detection interface.

[0058] The detection device 300 can be, but is not limited to, a level gauge 310 (such as a differential pressure level gauge or radar level gauge), a differential pressure flow meter, a pressure transmitter, or a resistance temperature detector. Taking a differential pressure level gauge as an example, one of the first and second detection ends of the differential pressure level gauge can detect the pressure at the bottom of the liquid level, while the other can detect the reference liquid level above the liquid level. The differential pressure level gauge detects the liquid level of the gas-liquid separator based on the pressure difference detected by the first and second detection ends.

[0059] A first port L1 and a second port L2 are provided on the separator body 100. The first detection end of multiple testing devices 300 is connected to a first pipe segment connected to the first port L1, and the second detection end of multiple testing devices 300 is connected to a second pipe segment connected to the second port L2, instead of being directly connected to the separator body 100. Only the first port L1 and the second port L2 are needed to meet the testing requirements of multiple testing devices 300. This arrangement reduces the number of openings and processing costs, further reduces the impact on the separator's structural strength and load-bearing capacity, and also reduces the risks of cracks, weld tangents, and fatigue damage that may occur due to a large number of openings. It effectively solves the problem of damage to the gas-liquid separator caused by multiple testing devices 300, improves the stability and strength of the separator body 100, and extends the equipment's service life.

[0060] Only two holes (first port L1 and second port L2) are needed on the separator body to meet the testing requirements of multiple testing devices. The first testing end of each testing device is set on the first connecting pipe section 210 connected to the first port L1, and the second testing end of each testing device is set on the second connecting pipe section 220 connected to the second port L2. Multiple testing devices 300 share the first connecting pipe section 210 and the second connecting pipe section 220, which allows for centralized design. The first connecting pipe section 210 and the second connecting pipe section 220 provide installation and maintenance space for multiple testing devices 300. When it is necessary to replace or repair the testing devices 300, the operation can be carried out directly on the connecting pipe section, which is convenient for maintenance personnel in the later stage.

[0061] like Figure 1 As shown, in one embodiment, the first connecting pipe section 210 and the first port L1 of the separator body 100 are disposed on the first reference plane; the second connecting pipe section 220 and the second port L2 of the separator body 100 are disposed on the second reference plane. The first reference plane and the second reference plane are located at different horizontal heights.

[0062] The reference surface serves as a reference plane, and the relative heights of the first reference surface and the second reference surface can be set according to actual needs. The first connecting pipe section 210 and the first pipe opening L1 of the separator body 100 are located at the first reference surface, which can make the first detection ends of the plurality of detection devices 300 at the same horizontal height, thereby improving the accuracy of detection; the second connecting pipe section 220 and the second pipe opening L2 of the separator body 100 are located at the second reference surface, which can make the second detection ends of the plurality of detection devices 300 at the same horizontal height, thereby improving the accuracy of detection. According to different requirements of actual application, the specific positions of the first pipe opening L1 and the second pipe opening L2 on the separator body 100 are determined, thereby further determining the detection positions of the first detection ends and the second detection ends of the plurality of detection devices 300. In this way, it is helpful for the detection device 300 to more accurately detect the detection parameters and the variation range of related parameters in the gas-liquid separator.

[0063] Taking the liquid level meter 310 as an example, by setting the first pipe opening L1 and the second pipe opening L2, a plurality of liquid level meters 310 can share the same set of pipe openings, which can meet the actual detection needs and reduce the number of holes opened on the gas-liquid separator, thereby reducing the risk of damaging the gas-liquid separator due to too many holes. The first detection ends of the plurality of liquid level meters 310 are connected at the same horizontal height, and the second detection ends are also connected at the same horizontal height, which can improve the detection accuracy and stability, reduce the error risk caused by the detection ends not being at the same horizontal height, and thereby improve the accuracy and reliability of the detection of the gas-liquid separator liquid level meter 310.

[0064] As shown in FIG. 1, Figure 1 In an embodiment, the first reference surface and the second reference surface are parallel to each other, so that the height difference between the first detection end and the second detection end of the detection device 300 is constant.

[0065] In this way, the accuracy of detection can be further improved, and to some extent, the problem of deviation in the detection result caused by the actual height difference between the first detection end and the second detection end of the plurality of detection devices 300 changing with the change of the liquid level when the first reference surface and the second reference surface are not parallel can be avoided.

[0066] In an embodiment, the gas-liquid separator further comprises a support member (not shown), which can enhance the anti-deformation ability of the structure.

[0067] Taking the horizontal height of the first pipe opening L1 being higher than that of the second pipe opening L2 as an example, in some examples, a support member is arranged at the position corresponding to the first pipe opening L1 on the separator body 100.

[0068] The first pipe opening L1 needs to bear certain pressure and weight, and is supported by the support, which can ensure that the first pipe opening L1 will not be torn due to the weight of the plurality of detection devices 300 (such as a plurality of liquid level gauges 310) to a certain extent, and enhances the stability of the structure.

[0069] The support can be, but is not limited to, a diagonal support, a ring-shaped support, a bracket, and other suitable support structures for actual use. Among them, the diagonal support can be a steel rod arranged diagonally or diagonally intersected; the ring-shaped support can be a support structure arranged around the pipe opening; the fixed bracket can be a structure arranged corresponding to the position of the pipe opening to provide stable support for the pipe opening and the connecting pipe segment, and can help fix the first connecting pipe segment 210 on the first pipe opening L1.

[0070] In other examples, a support is arranged on the separator body 100 corresponding to the position of the second pipe opening L2.

[0071] The first pipe opening L1 needs to bear certain pressure and weight, and can also be affected by factors such as fluid flow at the bottom of the separator body 100 and equipment operation. The support such as the diagonal support can support to a certain extent to ensure that the second pipe opening L2 will not be torn due to the weight of the plurality of detection devices 300 (such as a plurality of liquid level gauges 310), and reduce the influence of the aforementioned factors, and enhance the stability of the structure. The implementation of arranging the support corresponding to the second pipe opening L2 can refer to the related description of arranging the support corresponding to the first pipe opening L1 described above; hereinafter, the description is not repeated.

[0072] In yet another embodiment, the separator body 100 has supports arranged corresponding to the positions of the first pipe opening L1 and the second pipe opening L2, respectively, to combine the advantages of the two aforementioned embodiments, reduce pipe opening damage caused by weight, and enhance the stability and reliability of the overall structure.

[0073] As shown in FIG. 1, Figure 1 In an embodiment, the gas-liquid separator further includes a switch valve, at least part of the plurality of first detection interfaces and the plurality of second detection interfaces are provided with the switch valve, and the switch valve is used to open or close the corresponding detection interface.

[0074] For example, a switch valve can be arranged on each of all first detection interfaces, or only a part of first detection interfaces; a switch valve can also be arranged on each of all second detection interfaces, or only a part of second detection interfaces; or a switch valve can be arranged on at least part of the first detection interfaces and at least part of the second detection interfaces.

[0075] The switch valve can be used as an isolation root valve of the liquid level meter 310 to control the connection of the detection interface with the corresponding liquid level meter 310 to be turned on or turned off. In some embodiments, a switch valve (such as L1-1, L1-2, L1-3, L1-4) is arranged at the first detection interface corresponding to the first connection pipe segment 210, and a switch valve (such as L2-1, L2-2, L2-3, L2-4) is arranged at the second detection interface corresponding to the second connection pipe segment 220. For example, the plurality of detection devices 300 include a liquid level meter LZT-001, a liquid level meter LZT-002, a liquid level meter LZT-003, and a liquid level meter LZT-004. The first connection pipe segment 210 is provided with a plurality of first detection interfaces, the switch valve L1-1 is arranged at the first connection end of the liquid level meter LZT-001 and the corresponding first detection interface, the switch valve L1-2 is arranged at the first connection end of the liquid level meter LZT-002 and the corresponding first detection interface, the switch valve L1-3 is arranged at the first connection end of the liquid level meter LZT-003 and the corresponding first detection interface, and the switch valve L1-4 is arranged at the first connection end of the liquid level meter LZT-004 and the corresponding first detection interface. The arrangement of the switch valves L2-1 to L2-4 can be correspondingly referred to and will not be described here.

[0076] The switch valve can be, but is not limited to, a ball valve, a gate valve, a plug valve, and a diaphragm valve. The actual arrangement can be specifically selected, and thus is not limited here.

[0077] The arrangement of the switch valve can facilitate actual detection and maintenance. For example, when it is necessary to select any detection interface on the first connection pipe segment 210 or the second connection pipe segment 220 for detection, the corresponding detection interface can be turned on and the other detection interfaces can be turned off to achieve the detection. When it is necessary to maintain or replace the detection device 300, the corresponding switch valve can be turned off to achieve partial maintenance of the detection device 300.

[0078] In an embodiment, the detection interface (the first detection interface or the second detection interface) is provided with a first flange (not shown), the switch valve is provided with a second flange (not shown), and the switch valve is connected to the first flange of the corresponding detection interface through the second flange.

[0079] For example, after the second flange is aligned with the first flange of the corresponding detection interface and a gasket is placed therebetween, the first flange and the second flange are fastened by bolts, so that the gap between the first flange and the second flange is compressed to form a seal. Through the flange connection, the installation and dismounting of the switch valve are facilitated, the maintenance and replacement are facilitated, the sealed connection between the switch valve and the corresponding detection interface can be achieved, and the detection error caused by the unsealed connection can be reduced.

[0080] It should be noted that, in addition to the flange connection, the switch valve and the corresponding detection interface can also be connected through welding, sleeving, clamping, screwing, and the like, and thus are not limited here.

[0081] As shown in Figure 1 In some embodiments, as shown in FIG. 4, the horizontal height of the first connecting pipe section 210 is higher than that of the second connecting pipe section 220. In some embodiments, a first discharge part 410 can be arranged on the first connecting pipe section 210 to discharge liquid droplets and other impurities, so as to avoid the liquid droplets from entering the subsequent processing device and causing equipment corrosion or process interference. In some embodiments, a second discharge part 420 can be arranged on the second connecting pipe section 220 to discharge the precipitated impurities, free gas and mechanical impurities in the liquid, so as to avoid the equipment from being blocked.

[0082] As shown in Figure 1 In some embodiments, as shown in FIG. 6, the gas-liquid separator is applied to an electrolytic cell 600, and a plurality of level meters 310 are arranged in the plurality of detection devices 300 to detect the liquid level of the separator body 100. The level meter 310 can be, but is not limited to, a differential pressure type level meter or a radar level meter. The types of the plurality of level meters 310 can be the same or different.

[0083] The gas-liquid separator further comprises a first electric control assembly electrically connected with the electrolytic cell 600 and the plurality of level meters 310. The first electric control assembly is configured to control the working state of the electrolytic cell 600 according to the liquid level detected by the level meter 310.

[0084] The first electric control assembly can include, but is not limited to, a microprocessor or a single-chip microcomputer. The first electric control assembly is configured to receive the detection signals such as the liquid level detected by the plurality of level meters 310, and control the working state of the electrolytic cell 600 according to the detected liquid level, such as controlling the electrolytic cell 600 to run, controlling the electrolytic cell 600 to stop running (emergency stop), controlling the alarm, controlling the adjustment of the electrolytic current, controlling the switching of the running mode of the electrolytic cell 600, and the like. In this way, the automatic switching control of different working states of the electrolytic cell 600 can be realized. The level meter 310 can fail during use and affect the detection result. The redundant design of the plurality of level meters 310 and the control of the working state of the electrolytic cell 600 according to the detection result of the plurality of level meters 310 can also improve the reliability of the control.

[0085] In other embodiments, a second, third, or other electronic control components may be provided. These other electronic control components may be connected to the electrolytic cell 600 and one of the multiple level gauges 310, and used to directly control the working state of the electrolytic cell 600 based on the liquid level detected by the level gauge 310. When the multiple detection devices 300 also include other types of detection devices besides the level gauges 310, the other electronic control components may be connected to the electrolytic cell 600 and other types of detection devices (such as pressure transmitters, flow meters, and temperature detectors), and used to control the working state of the electrolytic cell 600 based on the detection results of the other types of detection devices. The specific configuration can be adjusted according to actual conditions and is not limited here.

[0086] The number of level gauges 310 can be set to two, three, four, or more as needed. The types of multiple level gauges 310 can be the same or different; the specific configuration can be determined based on actual needs and is not limited here.

[0087] like Figure 1 , Figure 2 As shown, in one embodiment, the first electronic control component includes a plurality of first comparators 511, a plurality of second comparators 512, and a first controller 520.

[0088] The first input terminals of multiple first comparators 511 are electrically connected one-to-one with multiple level gauges 310, and the second input terminals of the multiple first comparators 511 are used to connect to a first reference level. Each first comparator 511 is used to compare the level detected by a level gauge 310 with the corresponding first reference level and output a first comparison result. The first input terminal of the first comparator 511 serves as a detection signal input terminal to receive the level detected by the level gauge 310, and the second input terminal serves as a reference signal input terminal to receive a reference signal, which includes the first reference level.

[0089] The first input terminals of multiple second comparators 512 are electrically connected one-to-one with multiple level gauges 310, and the second input terminals of the multiple second comparators 512 are used to connect to a second reference level. Each second comparator 512 is used to compare the level detected by a level gauge 310 with the corresponding second reference level and output a second comparison result. The first input terminal of the second comparator 512 serves as a detection signal input terminal to receive the level detected by the level gauge 310, and the second input terminal serves as a reference signal input terminal to receive a reference signal, which includes the second reference level.

[0090] The height of the first reference liquid level is higher than the height of the second reference liquid level. The first reference liquid level can be a preset maximum liquid level or other relatively high liquid level; the second reference liquid level can be a preset minimum liquid level or other relatively low liquid level.

[0091] The first controller 520 is connected with the output ends of the plurality of first comparators 511 and the output ends of the plurality of second comparators 512, and is configured to control the working state of the electrolytic tank 600 according to the plurality of first comparison results and the plurality of second comparison results.

[0092] For example, the liquid level meters 310 are n (n≥2, n is a positive integer), and are denoted as liquid level meter 1, liquid level meter 2, …, liquid level meter n, etc. The first comparators 511 and the second comparators 512 are also n, and are denoted as first comparator 1, first comparator 2, …, first comparator n, and second comparator 1, second comparator 2, …, second comparator n, etc. The first comparators 511 and the second comparators 512 are independently arranged corresponding to the plurality of liquid level meters 310, which can optimize the reliability of the control of the working state of the electrolytic tank 600.

[0093] For example, the first reference liquid level is the highest liquid level, and the second reference liquid level is the lowest liquid level. When the liquid level detected by the corresponding liquid level meter 310 is not less than the highest liquid level (the liquid level is too high), the first comparator 511 outputs a high level (the first comparison result). The first controller 520 can determine whether the problem of the liquid level being too high occurs according to the first comparison result, and outputs a high liquid level alarm signal when the liquid level is too high. The emergency stop control can also be realized, and the electrolytic tank 600 is controlled to stop running when the liquid level is too high. When the liquid level detected by the corresponding liquid level meter 310 is not greater than the lowest liquid level (the liquid level is too low), the second comparator 512 outputs a high level (the first comparison result). The second controller 530 can determine whether the problem of the liquid level being too low occurs according to the second comparison result, and outputs a low liquid level liquid supplement alarm signal when the liquid level is too low. The emergency stop control can also be realized, and the electrolytic tank 600 is controlled to stop running when the liquid level is too low.

[0094] For example, when n is 2, the working state of the electrolytic tank 600 is controlled according to the first comparison result. If the two first comparison results are the same, the working state of the electrolytic tank 600 is directly controlled according to the first comparison result. If the two first comparison results are different, one of them determines that the liquid level is too high, and the other one does not determine that the liquid level is too high. The working state of the electrolytic tank 600 is controlled according to the liquid level being too high. This control mode can simplify the control process and optimize the response speed.

[0095] When n is not less than 3, taking control based on the first comparison result as an example, when multiple first comparison results are the same, the first controller 520 controls the working state of the electrolytic cell 600 according to the multiple first comparison results; when multiple first comparison results are different, the first controller 520 controls the working state of the electrolytic cell 600 according to the result with the highest number among the multiple first comparison results. Taking n as an example of 3, the multiple level gauges 310 include level gauge LZT-001, level gauge LZT-002, and level gauge LZT-003. When at least two of the level gauges LZT-001, LZT-002, and LZT-003 determine that the liquid level is too high, the electrolytic cell 600 is controlled according to the high liquid level control. When one of the level gauges LZT-001, LZT-002, and LZT-003 determines that the liquid level is too high, it is determined that there is no problem with the liquid level being too high. Based on the second comparison result, if it is determined that there is no problem with the liquid level being too high or too low, the electrolytic cell 600 is controlled to maintain its current operating state. This control method can improve the accuracy and reliability of the control.

[0096] The implementation of control based on the second comparison result can be referred to the aforementioned implementation of control based on the first comparison result, and will not be repeated here.

[0097] It should be noted that, in addition to independently setting the first comparator 511 and the second comparator 512 for each of the multiple level gauges 310, in some other embodiments, some of the multiple level gauges 310 may share a first comparator 511 and some of the multiple level gauges 310 may share a second comparator 512, so as to reduce costs and simplify circuit design.

[0098] like Figure 2 As shown, in one embodiment, the first electronic control component further includes a second controller 530, which is connected to the output of any one of the plurality of first comparators 511 and is also connected to the output of any one of the plurality of second comparators 512.

[0099] The second controller 530 is used to control the working state of the electrolytic cell 600 based on the first comparison result output by the first comparator 511 and the second comparison result output by the second comparator 512.

[0100] The second controller 530 is connected to one of a plurality of level gauges 310, and determines whether the liquid level of the electrolytic cell 600 is too high based on the first comparison result of the first comparator 511 corresponding to the level gauge 310, and determines whether the liquid level of the electrolytic cell 600 is too low based on the second comparison result of the second comparator 512 corresponding to the level gauge 310, so as to further control the working state of the electrolytic cell 600 based on the first comparison result and the second comparison result. Specific implementations of the second controller 530 can be found in the relevant embodiments of the first controller 520 described above, and will not be repeated here.

[0101] For example, taking level gauge m as an example, the first comparator and the second comparator connected to level gauge m are respectively the first comparator m and the second comparator m. The first comparator m and the second comparator m can be connected only to the second controller 530, or they can be connected to other controllers simultaneously. Multiple first comparators and multiple second comparators connected to the first controller 520 can be connected to multiple level gauges located relatively close to the pipe openings (first pipe opening L1, second pipe opening L2); the first comparators and second comparators connected to the second controller 530 can be connected to level gauges located relatively far from the pipe openings; or, multiple first comparators and multiple second comparators connected to the first controller 520 can be connected to any number of level gauges, and the first comparators and second comparators connected to the second controller 530 can be connected to other level gauges; the specific configuration can be adjusted according to actual conditions without limitation. By combining the two control methods, the accuracy and reliability of level detection can be improved while achieving rapid response.

[0102] It should be noted that, in addition to controlling the working state of the electrolytic cell 600 simultaneously through the aforementioned first controller 520 and second controller 530, the working state of the electrolytic cell 600 can also be controlled by either one. The specific settings can be made according to actual conditions and are not limited here.

[0103] like Figure 1 , Figure 2 As shown, in one embodiment, some of the multiple detection devices 300 are used to display the liquid level of the separator body 100. These detection devices 300 can serve as local level gauges, displaying the liquid level locally, thus enabling real-time detection and display of the liquid level of the separator body 100.

[0104] It should be noted that, in addition to displaying the liquid level of the separator body 100 through other separately set liquid level gauges, the liquid level display function can also be realized simultaneously through the liquid level gauge in the aforementioned embodiment; the specific settings can be made according to actual conditions, and are not limited here.

[0105] The above merely describes exemplary embodiments of the present application, and is not intended to limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, made based on the technical concept of the present application, using the content of the present application specification and drawings, is included in the patent protection scope of the present application.

Claims

1. A gas-liquid separator characterized by, The gas-liquid separator comprises: a separator body (100) provided with a first port (L1) and a second port (L2) spaced apart; a first connecting pipe section (210) in communication with the first port (L1), the first connecting pipe section (210) being provided with a plurality of first detection interfaces; a second connecting pipe section (220) in communication with the second port (L2), the second connecting pipe section (220) being provided with a plurality of second detection interfaces; a plurality of detection devices (300), each of the detection devices (300) having a first detection end and a second detection end, the first detection end of each of the detection devices (300) being connected to one of the first detection interfaces, and the second detection end of each of the detection devices (300) being connected to one of the second detection interfaces.

2. The gas-liquid separator according to claim 1, wherein: the first connecting pipe section (210) and the first port (L1) of the separator body (100) are arranged at a first reference surface; the second connecting pipe section (220) and the second port (L2) of the separator body (100) are arranged at a second reference surface; the first reference surface and the second reference surface are arranged at different levels.

3. The gas-liquid separator of claim 2, wherein, the first reference surface and the second reference surface are parallel to each other.

4. The gas-liquid separator of claim 1, wherein, The gas-liquid separator further comprises a support member; the support member is arranged at a position corresponding to the first port (L1) of the separator body (100); and / or, the support member is arranged at a position corresponding to the second port (L2) of the separator body (100).

5. The gas-liquid separator of any one of claims 1 to 4, wherein, The gas-liquid separator is applied to an electrolytic cell (600), and a plurality of the detection devices (300) comprise a plurality of liquid level meters (310) for detecting the liquid level of the separator body (100); The gas-liquid separator further comprises a first electric control assembly electrically connected to the electrolytic cell (600) and the plurality of liquid level meters (310); The first electric control assembly is configured to control the working state of the electrolytic cell (600) according to the liquid level detected by the liquid level meters (310).

6. The gas-liquid separator of claim 5, wherein, The first electric control assembly comprises: a plurality of first comparators (511), the first input ends of the plurality of first comparators (511) being electrically connected to the plurality of liquid level meters (310) one by one, and the second input ends of the plurality of first comparators (511) being configured to be connected to a first reference liquid level; each of the first comparators (511) is configured to compare the liquid level detected by one of the liquid level meters (310) with the corresponding first reference liquid level and output a first comparison result; a plurality of second comparators (512), the first input ends of the plurality of second comparators (512) being electrically connected to the plurality of liquid level meters (310) one by one, and the second input ends of the plurality of second comparators (512) being configured to be connected to a second reference liquid level; each of the second comparators (512) is configured to compare the liquid level detected by one of the liquid level meters (310) with the corresponding second reference liquid level and output a second comparison result; the height of the first reference liquid level is higher than the height of the second reference liquid level. A first controller (520) is connected with the output ends of the plurality of first comparators (511) and the output ends of the plurality of second comparators (512), and is configured to control the working state of the electrolytic tank (600) according to the plurality of first comparison results and the plurality of second comparison results.

7. The gas-liquid separator of claim 6, wherein, The first electric control assembly further comprises a second controller (530) connected with the output end of any one of the plurality of first comparators (511) and the output end of any one of the plurality of second comparators (512); The second controller (530) is configured to control the working state of the electrolytic tank (600) according to the first comparison result output by the connected first comparator (511) and the second comparison result output by the second comparator (512).

8. The gas-liquid separator of any one of claims 1 to 4, wherein, Part of the plurality of detection devices (300) is configured to display the liquid level of the separator body (100).

9. The gas-liquid separator of any one of claims 1 to 4, wherein, The gas-liquid separator further comprises a switch valve, at least part of the plurality of first detection interfaces and the plurality of second detection interfaces are provided with the switch valve, and the switch valve is configured to open or close the corresponding detection interface.

10. The gas-liquid separator of claim 9, wherein, The detection interface is provided with a first flange, the switch valve is provided with a second flange, and the switch valve is connected with the first flange of the corresponding detection interface through the second flange.

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