CN216947225U

CN216947225U - Electrolytic device with skid-mounted structure

Info

Publication number: CN216947225U
Application number: CN202220218021.0U
Authority: CN
Inventors: 王刚; 单明月; 裴允彤; 黄堂娟; 万阳
Original assignee: Bluestar Beijing Chemical Machinery Co Ltd
Current assignee: Bluestar Beijing Chemical Machinery Co Ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-07-12
Anticipated expiration: 2032-01-26

Abstract

The application discloses sled dress structure electrolytic device, the device includes: at least one skid-mounted unit, a first type of electrolytic treatment equipment, a connecting pipeline and a connecting piece; the skid-mounted unit and the first type of electrolytic treatment equipment are sequentially and fixedly arranged on a set site according to the flow direction of electrolytic fluid after electrolytic treatment; the distance between the skid-mounted units to be connected through the connecting pipes, and/or between the skid-mounted units and the first type of electrolytic treatment equipment, and/or between the first type of electrolytic treatment equipment is kept within a set range; the skid-mounted units associated with electrolytic treatment are connected with the first type of electrolytic treatment equipment through the connecting pipelines and the connecting pieces, and/or the skid-mounted units associated with electrolytic treatment are connected with the first type of electrolytic treatment equipment through the connecting pipes and the connecting pieces. The electrolytic device has the advantages that the installation efficiency of the electrolytic device is improved, and the installation and maintenance cost is reduced.

Description

Electrolytic device with skid-mounted structure

Technical Field

The application relates to an electrolyte electrolysis device, in particular to a skid-mounted structure electrolysis device.

Background

In recent years, with the increasing emphasis on ecological and environmental protection problems, the treatment and recycling of some of the waste salts containing toxic and harmful substances generated in the production process in the chemical industry are increasingly emphasized by some enterprises and research institutions. The ion membrane method electrolysis process is used as an effective waste salt resource utilization technology and enters the field of waste salt treatment.

The traditional industrial production device for chlor-alkali at present adopts a large-scale production mode, and has the characteristics of large floor area, high primary investment, long project construction period and higher requirements on industrial accessories and technical personnel. This results in higher installation and maintenance costs for the electrolyzer, and the suppliers of the electrolyzer need to participate in the installation and debugging process of the electrolyzer for a long time, which leads to high maintenance and installation costs, is not favorable for the suppliers, and is more unfavorable for the debugging and operation of the manufacturers.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the application provides a sled dress structure electrolytic device, can solve the technical problem that electrolytic device installation and debugging time limit for a project is longer, area is big, maintenance cost is higher.

In a first aspect, the present application provides a skid-mounted structural electrolysis apparatus comprising: at least one skid-mounted unit, a first type of electrolytic treatment equipment, a connecting pipeline and a connecting piece;

the skid-mounted unit and the first type of electrolytic treatment equipment are sequentially and fixedly arranged on a set site according to the flow direction of electrolytic fluid after electrolytic treatment; the distance between the skid-mounted units to be connected through the connecting pipes, and/or between the skid-mounted units and the first type of electrolytic treatment equipment, and/or between the first type of electrolytic treatment equipment is kept within a set range;

the skid-mounted units associated with electrolytic treatment are connected with the first type of electrolytic treatment equipment through the connecting pipelines and the connecting pieces, and/or the skid-mounted units associated with electrolytic treatment are connected with the first type of electrolytic treatment equipment through the connecting pipes and the connecting pieces.

In some embodiments, the skid-mounted unit at least comprises a skid-mounted chassis and a skid-mounted bracket fixed on the periphery of the skid-mounted chassis; the skid-mounted brackets are fixedly connected through fixing pieces;

the shape of the skid-mounted unit is matched with that of the container unit, and the container unit can at least contain at least one skid-mounted unit taking the skid-mounted unit as a unit.

In some embodiments, the skid unit further comprises at least a skid line, a valve, a monitoring and monitoring instrument, a sensor; the skid-mounted pipeline is bundled in a mode of being matched with a connecting object and is fixed on the skid-mounted unit; the monitoring instrument and the sensor are connected to the prying pipeline;

and at least an external fluid inlet and an external fluid outlet are reserved on the skid-mounted pipeline and are used as interfaces for butting the skid-mounted unit with other skid-mounted units or the first type of electrolytic treatment equipment through the connecting pipeline.

In some embodiments, the skid-mounted unit further comprises at least a second type of electrolytic treatment equipment, skid-mounted pipelines, and valves; the second type of electrolytic treatment equipment is at least provided with a fluid inlet and a fluid outlet;

the second type of electrolytic treatment equipment is fixed on the skid-mounted chassis and is arranged in the skid-mounted bracket; the skid-mounted pipeline is connected with at least one of a fluid inlet and a fluid outlet of the second type of electrolytic treatment equipment;

and at least an external fluid inlet and an external fluid outlet are reserved on the skid-mounted pipeline and/or the second type of electrolytic treatment equipment and are used as interfaces for butting the skid-mounted unit with other skid-mounted units or the first type of electrolytic treatment equipment through the connecting pipelines.

In some embodiments, the skid-mounted unit further comprises at least a second type of electrolytic treatment equipment, skid-mounted pipelines, valves and monitoring instruments; the second type of electrolytic treatment equipment is at least provided with a fluid inlet and a fluid outlet;

the second type of electrolytic treatment equipment is fixed on the skid-mounted chassis and is arranged in the skid-mounted bracket; the skid-mounted pipeline is connected with at least one of a fluid inlet and a fluid outlet of the second type of electrolytic treatment equipment; the monitoring and monitoring instrument is arranged on the prying pipeline connected to the fluid inlet or the fluid outlet of the second type of electrolytic treatment equipment;

In some embodiments, the skid unit further comprises at least a second type of electrolytic processing equipment, skid lines, valves, sensors; the second type of electrolytic treatment equipment is at least provided with a fluid inlet and a fluid outlet;

the second type of electrolytic treatment equipment is fixed on the skid-mounted chassis and is arranged in the skid-mounted bracket; the skid-mounted pipeline is connected with at least one of a fluid inlet and a fluid outlet of the second type of electrolytic treatment equipment; the sensor is arranged on the prying pipeline connected to the fluid inlet or the fluid outlet of the second type of electrolytic treatment equipment, and/or the sensor is arranged in the second type of electrolytic treatment equipment, or the fluid inlet or the fluid outlet of the second type of electrolytic treatment equipment;

In some embodiments, the skid-mounted unit further comprises at least a second type of electrolytic treatment equipment, skid-mounted pipelines, valves, monitoring and monitoring instruments and sensors; the second type of electrolytic treatment equipment is at least provided with a fluid inlet and a fluid outlet;

the second type of electrolytic treatment equipment is fixed on the skid-mounted chassis and is arranged in the skid-mounted bracket; the skid-mounted pipeline is connected with at least one of a fluid inlet and a fluid outlet of the second type of electrolytic treatment equipment; the monitoring and monitoring instrument and the sensor are arranged on the prying pipeline connected to a fluid inlet or a fluid outlet of the second type of electrolytic treatment equipment; and/or the sensor is arranged in the second type of electrolytic treatment equipment, or at a fluid inlet or a fluid outlet of the second type of electrolytic treatment equipment;

In some embodiments, the first type of electrolytic processing device comprises at least one of an electrolysis cell, an ion exchange resin column, a dechlorination column, a recycle tank, a brine recovery plant, a wastewater plant, a finished alkali tank.

In some embodiments, the electrolytic processing device of the second type comprises at least one of a dechlorinated weak brine tank, a pump, a heat exchanger, and a cooler.

In some embodiments, the skid-mounted unit further comprises a shell and a skid-mounted top cover, wherein the shell is sleeved on the periphery of the skid-mounted supports, or the shell is inserted between the skid-mounted supports to form an accommodating space; the skid-mounted top cover is fixedly connected with the skid-mounted support;

and a closed space or an at least partially closed space is formed by enclosing among the shell, the skid-mounted top cover and the skid-mounted chassis.

According to the technical scheme of the embodiment of the application, relevant electrolytic equipment in the electrolytic device is split according to the installation and allocation sequence in the electrolytic device by relevant components in the electrolytic device, the split treatment equipment in the electrolytic device is packaged in a skid-mounted structure according to the assembly volume and the like, the split electrolytic equipment is installed in the skid-mounted structure, and relevant pipeline valves, monitoring and monitoring instruments and the like connected with the split electrolytic equipment are installed on the electrolytic equipment in advance. After receiving all the electrolytic equipment of the electrolytic device packaged by the skid-mounted structure, a manufacturer places and fixes all the skid-mounted units according to the positions where all the skid-mounted units are to be installed, the installation sequence among the skid-mounted units and the like, and each skid-mounted unit is provided with an external fluid inlet and an external fluid outlet so as to be connected with other skid-mounted units or first-type electrolytic treatment equipment through connecting pipelines and connecting pieces. In this application embodiment, because electrolytic device has gone on decomposing and the electrolysis equipment and the pipeline in the sled dress unit itself all have installed according to sled dress unit and has finished, after the relevant sled dress unit of electron device was received to the producer, put corresponding sled dress unit according to the order, rethread connecting tube dock can. The embodiment of the application provides an electrolytic device, need not the professional in the installation and can go on, need not the professional and maintain, reduced electrolytic device's installation and maintenance cost, promoted electrolytic device's commonality.

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Moreover, like reference numerals are used to refer to like elements throughout. In the drawings:

FIG. 1 shows a schematic structural view of a skid-mounted unit of an electrolysis apparatus provided in an embodiment of the present application;

FIG. 2 is a schematic diagram showing the construction of a skid-mounted unit of an electrolysis apparatus according to an embodiment of the present application;

FIG. 3 is a schematic view showing the overall structure of an electrolysis apparatus according to an embodiment of the present application;

FIG. 4 shows a schematic distribution of portions of a skid-mounted electrolysis apparatus of an embodiment of the present application.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present application more clearly, and therefore are only used as examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

The main purpose of this application embodiment is to design a miniaturized apparatus for producing as whole solution that uses a single set of electrolysis trough as core electrolysis equipment, realizes fast assembly with integrated sled dress constitutional unit. The whole set of production device requires compact layout and small floor area, and has low one-time investment in the initial stage, short project construction period and lower requirements on industrial matching and technical personnel. The electrolytic device is suitable for solving the problems of waste salt treatment and recycling, preparation of sodium hypochlorite solution with higher concentration and the like, and represents the development direction of miniaturization of the electrolytic device.

The sled dress structure electrolytic device of this application embodiment includes: at least one skid-mounted unit, a first type of electrolytic treatment equipment, a connecting pipeline and a connecting piece; in the embodiment of the present application, the connecting member may include a connecting device between pipes such as flanges. The connecting pipeline is mainly used for butt joint of external fluid interfaces between the skid-mounted units, or butt joint of the external fluid interfaces between the skid-mounted units and the skid-mounted units, and the like, the length of the connecting pipeline is set according to the distance between objects to be connected, or the path requirement of fluid, and the number of the connecting pipeline is determined according to the number of the butt joint interfaces between the objects to be connected.

The first type of electrolytic processing equipment is mainly electrolytic processing equipment which is bulky and inconvenient to package in a skid-mounted manner. As an example, the first type of electrolytic processing apparatus includes at least one of an electrolytic bath, an ion exchange resin column, a dechlorination column, a circulation tank, a brine recovery apparatus, a waste water apparatus, a finished alkali tank, and the like. Such devices are inherently large and can be shipped or assembled individually without having to be skid-mounted for packaging. The skid-mounted packaging is to facilitate the overall output of the electrolysis device, that is, the manufacturers directly mount the electrolysis device on the basis of the skid-mounted unit, so that the consideration of the volume of the first type of electrolysis treatment equipment is relative to the skid-mounted packaging of the first type of electrolysis treatment equipment, and the first type of electrolysis treatment equipment can be packaged by the skid-mounted packaging under the condition that the transportation space allows.

In this application embodiment, the size of sled dress unit can with the encapsulation volume phase-match of container to make the sled dress unit of this application embodiment conveniently transport through modes such as container. Of course, the size of the skid-mounted unit can be matched with the accommodating space of the carriage of the closed type truck, so that the skid-mounted unit can be conveniently transported through the closed type truck and the like. Or, as an implementation mode, the size of the skid-mounted unit is matched with the space of a transportation carriage such as a train, and one or more skid-mounted units are arranged in the train carriage so as to facilitate transportation and the like.

The skid-mounted units associated with electrolytic treatment are connected with the first type of electrolytic treatment equipment through the connecting pipelines and the connecting pieces, and/or the skid-mounted units associated with electrolytic treatment are connected with the first type of electrolytic treatment equipment through the connecting pipes and the connecting pieces. The skid-mounted unit and the first type of electrolytic treatment equipment are sequentially and fixedly arranged on a set site according to the flow direction of electrolytic fluid after electrolytic treatment; the distance between the skid-mounted units to be connected through the connecting pipes, and/or between the skid-mounted units and the first type of electrolytic processing equipment, and/or between the first type of electrolytic processing equipment is maintained within a set range. In the embodiment of the application, since the skid-mounted unit is related equipment which is assembled in advance, after a manufacturer receives the skid-mounted unit of the related electrolysis device and the first type of electrolysis treatment equipment, the skid-mounted unit and the first type of electrolysis treatment equipment can be placed at spatial positions according to related instructions and the like, for example, a tower or a fixed platform is built according to the distribution direction and the positions of the skid-mounted unit and the first type of electrolysis treatment equipment, and the skid-mounted unit and the first type of electrolysis treatment equipment are fixed on the tower or the fixed platform. And the skid-mounted unit and the first type of electrolytic treatment equipment are sequentially connected through a connecting pipeline and a connecting piece, and the whole electrolytic device can be used in production after being simply debugged.

FIG. 1 is a schematic structural diagram of a skid-mounted unit of an electrolysis apparatus provided in an embodiment of the present application, and as shown in FIG. 1, in some embodiments of the present application, the skid-mounted unit at least includes a skid-mounted chassis 10 and a skid-mounted bracket 20 fixed around the skid-mounted chassis 10; the skid-mounted brackets 20 are fixedly connected through fixing pieces; the fixing member here includes angle steel members, reinforcing ribs, and the like. The shape of the skid-mounted unit is matched with that of the container unit, and the container unit can at least contain at least one skid-mounted unit taking the skid-mounted unit as a unit. The skid unit may be a device installation structure with a similar volume, and has an accommodation space for the electrolysis device and its related connecting pipes, and the skid bracket 20 is used to support and protect the electrolysis device and the like placed therein.

As shown in fig. 1, in some embodiments of the present application, the skid units further include at least skid lines 30, valves, monitoring and monitoring instrumentation, sensors; the skid-mounted pipelines 30 are bundled in a manner of being matched with a connecting object and are fixed on the skid-mounted unit; the monitoring instrument and the sensor are connected to the skid-mounted pipeline 30; at least an external fluid inlet and an external fluid outlet are reserved on the skid-mounted pipeline 30 and are used as interfaces for butting the skid-mounted unit with other skid-mounted units or first-type electrolytic treatment equipment through the connecting pipelines. The skid-mounted unit can be only provided with the skid-mounted pipeline 30, the valve, the monitoring instrument, the sensor and the like, namely the skid-mounted unit is only used for connecting electrolytic equipment, so that the electrolytic device is convenient to install by a manufacturer, the skid-mounted pipeline 30, the valve, the monitoring instrument, the sensor and the like can be packaged in a skid-mounted unit mode, and transportation and integral installation are facilitated.

It should be understood by those skilled in the art that the auxiliary components such as the valves, the monitoring meters, and the sensors in the skid-mounted unit are not included at the same time, for example, only the skid-mounted pipeline 30 and the valves may be included in the skid-mounted unit, or the skid-mounted pipeline 30, the valves, and the monitoring meters may be included in the skid-mounted unit, or the skid-mounted pipeline 30, the monitoring meters, and the like may be included in the skid-mounted unit.

FIG. 2 is a schematic diagram of a skid-mounted unit of an electrolysis apparatus provided in an embodiment of the present application, and as shown in FIG. 2, in some embodiments of the present application, the skid-mounted unit further includes at least a second type of electrolysis treatment equipment 40, a skid-mounted pipeline 30, and a valve; the second type of electrolytic treatment equipment 40 is at least provided with a fluid inlet and a fluid outlet; the second type of electrolytic treatment equipment 40 is fixed on the skid-mounted chassis 10 and is arranged in the skid-mounted bracket 20; the skid line 30 is connected to at least one of a fluid inlet and a fluid outlet of the second type of electrolytic processing device 40; at least an external fluid inlet and an external fluid outlet are reserved on the skid-mounted pipeline 30 and/or the second type of electrolytic treatment equipment 40 and are used as interfaces for butting the skid-mounted unit with other skid-mounted units or the first type of electrolytic treatment equipment through the connecting pipelines. As one realization mode, the skid-mounted unit is used for packaging the second type of electrolytic processing equipment 40, namely, the second type of electrolytic processing equipment 40 and relevant connecting pipelines thereof are connected in advance and are installed and fixed in the skid-mounted unit.

As an example, the second type of electrolytic processing device 40 includes at least one of an electrolytic device such as a dechlorinated-lean brine tank, a pump, a heat exchanger, a cooler, and the like. The electrolytic equipment is small in size, related pipelines and the like can be connected in advance and then fixedly installed in the skid-mounted unit, a manufacturer can conveniently install the electrolytic device directly on the basis of the skid-mounted unit, the installation efficiency of the electrolytic device is improved, the installation process of the whole electrolytic device is simplified, the electrolytic device does not need to be guided by special installation and maintenance personnel, and common workers can install the electrolytic device.

In some embodiments of the present application, the skid unit further comprises at least a second type of electrolytic treatment device 40, skid lines 30, valves, monitoring and monitoring instruments; the second type of electrolytic treatment equipment 40 is at least provided with a fluid inlet and a fluid outlet; the second type of electrolytic treatment equipment 40 is fixed on the skid-mounted chassis 10 and is arranged in the skid-mounted bracket 20; the skid line 30 is connected to at least one of a fluid inlet and a fluid outlet of the second type of electrolytic processing device 40; the monitoring and monitoring instrument is arranged on the skid-mounted pipeline 30 connected to the fluid inlet or the fluid outlet of the second type of electrolytic processing device 40;

at least an external fluid inlet and an external fluid outlet are reserved on the skid-mounted pipeline 30 and/or the second type of electrolytic treatment equipment 40 and are used as interfaces for butting the skid-mounted unit with other skid-mounted units or the first type of electrolytic treatment equipment through the connecting pipelines. As an implementation, the skid units formed by each of the second type of electrolytic processing devices 40 are different in the type of electrolytic processing device 40 concerned, the connecting lines and the auxiliary devices concerned are different.

In some embodiments of the present application, the skid unit further comprises at least a second type of electrolytic treatment device 40, skid lines 30, valves, sensors; the second type of electrolytic treatment equipment 40 is at least provided with a fluid inlet and a fluid outlet; the second type of electrolytic treatment equipment 40 is fixed on the skid-mounted chassis 10 and is arranged in the skid-mounted bracket 20; the skid line 30 is connected to at least one of a fluid inlet and a fluid outlet of the second type of electrolytic processing device 40; the sensor is provided on the skid line 30 connected to the fluid inlet or fluid outlet of the second type of electrolytic processing device 40, and/or the sensor is provided within the second type of electrolytic processing device 40, or the fluid inlet or fluid outlet of the second type of electrolytic processing device 40;

at least an external fluid inlet and an external fluid outlet are reserved on the skid-mounted pipeline 30 and/or the second type of electrolytic treatment equipment 40 and are used as interfaces for butting the skid-mounted unit with other skid-mounted units or the first type of electrolytic treatment equipment through the connecting pipelines.

In some embodiments of the present application, the skid unit further comprises at least a second type of electrolytic treatment device 40, skid lines 30, valves, monitoring and monitoring instruments, sensors; the second type of electrolytic treatment equipment 40 is at least provided with a fluid inlet and a fluid outlet; the second type of electrolytic treatment equipment 40 is fixed on the skid-mounted chassis 10 and is arranged in the skid-mounted bracket 20; the skid line 30 is connected to at least one of a fluid inlet and a fluid outlet of the second type electrolytic processing device 40; the monitoring and monitoring instrument and the sensor are provided on the skid-mounted line 30 connected to the fluid inlet or the fluid outlet of the second type electrolytic processing device 40; and/or the sensor is disposed in the second type of electrolytic processing device 40, or at a fluid inlet or a fluid outlet of the second type of electrolytic processing device 40.

As shown in fig. 1 and 2, in some embodiments of the present application, the skid-mounted unit further includes a casing and a skid-mounted top cover 50, where the casing is sleeved on the periphery of the skid-mounted bracket 20, or the casing is inserted between the skid-mounted brackets 20 to form an accommodating space; the skid-mounted top cover 50 is fixedly connected with the skid-mounted bracket 20;

a closed or at least partially closed space is enclosed between the housing, the skid top cover 50 and the skid base plate 10. That is, the skid-mounted unit may be an exposed structure, such as only including the skid-mounted chassis 10 and the skid-mounted bracket 20, or only including the skid-mounted chassis 10, the skid-mounted bracket 20, and the skid-mounted top cover 50.

Of course, in consideration of the related protection of the packaging equipment, the skid-mounted unit can be provided with a related shell, so that the skid-mounted unit forms a closed or partially closed structure, and the second type of electrolytic treatment equipment 40 and the corresponding connecting pipelines arranged in the skid-mounted unit can be better protected. Even if the electrolysis equipment is transported for a long distance, the electrolysis equipment arranged in the electrolysis equipment is not easy to damage.

This application embodiment decomposes into a plurality of sled dress units that integrate with whole set of apparatus for producing, and all equipment, pipeline, instrument, valve are preassembled in the sled dress unit, connect with the flange between the sled dress unit. The construction site can realize rapid and convenient installation and construction on the basis of meeting the requirements of civil engineering conditions. Meanwhile, the process route and the equipment arrangement are further optimized, the equipment, the pipeline, the instrument and the valve are reduced, and the structural height of the installation frame of the whole production system is reduced. The construction site provided by the manufacturer can realize skid-mounted rapid and convenient installation and construction as long as the requirement of civil engineering conditions is met.

The whole set of production device adopts skid-mounted units to carry out quick assembly, adopts optimized process routes and equipment arrangement, has compact overall layout and small occupied area under the condition of meeting the requirements of safety and environmental protection, has low initial one-time investment, short project construction period and lower requirements on industrial accessories and technical personnel, and realizes the purpose of producing alkali and chlorine by electrolyzing saline water with lower cost.

The essence of the technical solution of the embodiments of the present application is further clarified below by specific examples.

Fig. 3 shows an overall structure schematic diagram of a skid-mounted structure electrolytic device provided in an embodiment of the present application, and as shown in fig. 3, the skid-mounted structure electrolytic device provided in the embodiment of the present application is designed to meet the requirements of waste salt treatment and recycling and preparation of a sodium hypochlorite solution with a higher concentration, and simultaneously solves the problems that a traditional chlor-alkali industrial production device occupies a large area, is high in initial one-time investment, is long in project construction period, and has a higher requirement on industrial matching and technical personnel. The utility model provides an integral solution of a skid-mounted electrolytic cell single-cell production device, which adopts a more optimized process route and equipment arrangement and realizes the purpose of electrolyzing brine to produce alkali and chlorine at lower cost. It should be understood by those skilled in the art that the examples of the present application are only illustrated by the example of caustic soda electrolysis, and are not intended to limit the technical solutions of the examples of the present application. For example, the same applies to the technical scheme of the embodiment of the application for the electrolysis device for hydrogen production and the like.

The production process flow is illustrated by taking a skid-mounted electrolytic cell single-cell production device which produces 5 kilotons of caustic soda 100 wt% every year as an example, and comprises the following steps:

the brine is supplied outside the battery compartment, heated by the brine heater 153, sent to the ion exchange resin tower 160 for further refining, and sent to the refined brine tank 170 after meeting the electrolysis process requirements. The ion exchange resin column 160 is in a double column circulation mode, wherein one column refines the brine, and the other column regenerates the resin, and after regeneration is completed, the column is connected with the other column in series for operation.

The refined brine from the refined brine tank 170 is sent to the anolyte feed header of the electrolysis cell 230 via the refined brine pump 174. The refined brine pump 174 is frequency-variable controlled to maintain a stable pump outlet pressure and achieve a stable brine inlet pressure of the feed header. The brine flow is controlled to ensure that the brine concentration is at a specified value. The anode chamber is subjected to an acid addition process, and hydrochloric acid is continuously fed into the anode chamber together with brine, thereby neutralizing hydroxide ions permeated from the cathode chamber.

The brine is electrolyzed in the anode compartment of the electrolyzer 230 to produce chlorine gas while the brine concentration is reduced. And collecting the electrolyzed chlorine gas and light salt water mixture to an anolyte discharge header pipe for gas and liquid separation. The light salt water enters the light salt water circulating groove 260 after gas-liquid separation, and chlorine is collected in the chlorine main pipe and is sent out of a boundary area after pressure control.

The light brine in the light brine circulating tank 260 passes through a light brine circulating pump 264, part of the light brine returns to a refined salt water pipeline, and part of the light brine is sent to a dechlorinating tower 310 for dechlorination. The dilute brine is added with hydrochloric acid to adjust the pH value, and then is sent to the top of a dechlorinating tower 310 for dechlorination, and most of free chlorine in the dilute brine is removed. As an implementation manner, the dechlorination process in the embodiment of the present application may adopt an air blowing method.

The chlorine gas removed by the dechlorination tower 310 is cooled by a chlorine gas cooler 313 and then is sent to waste chlorine for treatment. The light brine from the dechlorination tower 310 enters a dechlorination light brine tank 311, passes through a dechlorination light brine pump 314, is added with alkali liquor to adjust the pH value, and is added with sodium sulfite to completely remove residual free chlorine. The light brine without free chlorine is sent out of battery limits.

The alkali liquor in the alkali liquor circulating tank 270 is diluted to a set concentration by pure water through an alkali liquor circulating pump 274, and then is sent to the catholyte feeding main pipe of the electrolytic tank 230. In this application embodiment, the working method of alkali liquor circulating pump 274 can be the frequency conversion control mode to the pump outlet pressure that keeps stable realizes the pressure stability of feeding house steward alkali liquor entry, thereby can control the alkali liquor flow, has guaranteed that alkali liquor concentration keeps at the setting value. The lye heat exchanger 273 is installed between the lye circulating pump 274 and the electrolytic bath 230 and controls the temperature of the lye at a prescribed value. The alkali solution is electrolyzed in the cathode chamber of the electrolytic cell 230 to produce hydrogen and alkali. And collecting the electrolyzed hydrogen and alkali liquor mixture to an alkali liquor discharge main pipe for gas and liquid separation. The separated alkali liquor enters an alkali liquor circulating tank 270, part of the alkali liquor enters a finished product alkali tank 340 as finished product alkali through an alkali liquor circulating pump 274, and part of the alkali liquor is sent to the electrolytic tank 230 for continuous circulation. The hydrogen is collected in the hydrogen main pipe and sent out of the battery limits after pressure control. The ratio of the hydrogen pressure to the chlorine pressure is controlled, so that the chlorine-hydrogen pressure difference is kept at a set value.

The salt-containing wastewater generated by the regeneration of the ion exchange resin tower 160 and the salt-containing wastewater after the shutdown and water washing of the electrolytic cell 230 are discharged into the recycled salt water tank 165. The waste water containing acid and alkali generated by the regeneration of the ion exchange resin tower 160 and the alkali-containing waste water after the shutdown and water washing of the electrolytic bath 230 are discharged into the waste water tank 166. The high-concentration brine after the electrolysis bath 230 is stopped is discharged into the light brine circulation bath 260, and the high-concentration alkali liquor after the electrolysis bath 230 is stopped is discharged into the alkali liquor circulation bath 270.

Fig. 4 is a schematic distribution diagram of parts of an electrolyzer with a skid-mounted structure according to an embodiment of the present application, and as shown in fig. 4, a schematic distribution diagram of parts of an electrolyzer with a skid-mounted structure is shown, and the manufacturing principle of a skid-mounted unit according to an embodiment of the present application is described with reference to fig. 4, as follows:

for a single-tank production device of a skid-mounted electrolytic tank for annual production of 5 kilotons and 100 wt% of caustic soda, the single-tank production device is divided into a plurality of integrated skid-mounted units according to the description of a figure 2. Wherein the larger tank, tank and equipment comprise an electrolytic tank 230, an ion exchange resin tower 160, a recycled brine tank 165, a waste water tank 166, a refined brine tank 170, a light brine circulating tank 260, an alkali liquor circulating tank 270, a dechlorination tower 310, a dechlorination light brine tank 311, a sodium sulfite tank 320, a pump 324, a finished product alkali tank 340, a high-purity hydrochloric acid tank 350 and a pure water tank 360 which are used as independent equipment for transportation or installation. Because the equipment has larger volume, the installation of corresponding pipelines, instruments, pumps and the like can be independently carried out without skid-mounted packaging, so that the equipment is convenient for manufacturers to install and use. The equipment such as the great groove, jar of independent installation setting, because the volume is less relatively, also more convenient transportation.

The equipment, pipelines, instruments and valves connected among the equipment skid-mounted units are manufactured into integrated skid-mounted units. The skid-mounted unit 1 is a resin tower skid-mounted unit, and the length, width and height of the skid-mounted unit are 4500-2000-2200 mm; in the embodiment of the present application, the above dimensions are merely exemplary, and are not intended to limit the volume and the like of the skid-mounted unit in the embodiment of the present application. The skid-mounted unit 2 is a skid-mounted unit for waste liquid treatment, refined brine and pure water, and the length, width and height of the skid-mounted unit are about 10500 x 1300 x 2200 mm; it will be appreciated by those skilled in the art that the volumetric size of the skid unit 2 is also merely illustrative. The skid-mounted unit 3 is a light brine dechlorination and electrolysis circulating skid-mounted unit, the skid-mounted unit is divided into A, B upper and lower layers, A is a lower layer skid-mounted unit, and the length, width and height are about 10500 x 2000 mm; b is an upper skid unit with the length, width and height of about 10500 x 2000 x 2400 mm; the skid-mounted unit 4 is a finished product alkali skid-mounted unit, and the length, width and height of the skid-mounted unit are about 2500 x 2000 x 2200 mm. The equipment, pipelines, instruments and valves in the skid-mounted units are preassembled, and the skid-mounted units can be connected through connecting pieces such as flanges.

Part of the equipment is required to be arranged on a frame structure, wherein the frame A is an electrolysis equipment mounting frame, and the length, the width and the height of the frame are about 10000 x 5000 x 2600 mm; the stand B is a dechlorination equipment mounting frame, and the length, width and height of the frame are about 4000 x 3000 x 3800 mm. The whole set of production system occupies an area of 22000 x 14000mm, and the maximum installation height is 6000 mm.

Like this, based on the electrolytic device of the technical scheme of this application embodiment, manufacturer's job site can realize quick, the convenient installation construction of sled dress formula on the basis that satisfies civil engineering condition requirement.

In the embodiment of the application, on the basis of the traditional electrolysis process, the required electrolyte is electrolyzed by the electrolytic bath 230 and is directly supplied by the refined salt water pump 174 and the alkali liquor circulating pump 274 which are additionally provided with variable frequency control. The stable outlet pressure is kept by the variable frequency control pump, so that the stability of the pressure and the flow of the electrolyte entering the electrolytic bath 230 is realized, and the method for controlling the stability of the pressure and the flow of the electrolyte entering the electrolytic bath 230 by the liquid levels of a brine head tank and an alkali liquor head tank in the traditional electrolytic process is replaced. Waste liquid generated in the whole production process of the ion exchange resin tower 160 and the electrolytic tank 230 is provided with an anolyte discharge tank and a catholyte discharge tank by sharing the recycled salt water tank 165 and the waste water tank 166. Finally, the investment of equipment, pipelines, instruments and valves is reduced, and the structural height of the installation frame of the whole production system is reduced.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims

1. A skid-mounted structural electrolysis device, said device comprising: at least one skid-mounted unit, a first type of electrolytic treatment equipment, a connecting pipeline and a connecting piece;

2. The electrolyzer of claim 1 wherein said skid-mounted unit comprises at least a skid-mounted chassis, a skid-mounted support secured around said skid-mounted chassis; the skid-mounted brackets are fixedly connected through fixing pieces;

the shape of the skid-mounted unit is matched with that of a container unit, and the container unit can at least contain at least one skid-mounted unit taking the skid-mounted unit as a unit.

3. The electrolyzer of claim 2 wherein the skid units further comprise at least skid lines, valves, monitoring and monitoring instrumentation, sensors; the skid-mounted pipeline is bundled in a mode of being matched with a connecting object and is fixed on the skid-mounted unit; the monitoring instrument and the sensor are connected to the prying pipeline;

and at least an external fluid inlet and an external fluid outlet are reserved on the prying pipeline and used as interfaces for butting the prying unit with other prying units or first-class electrolytic treatment equipment through the connecting pipeline.

4. The electrolyzer apparatus of claim 2 characterized in that at least one of the skid units further comprises a second type of electrolytic treatment device, skid lines, valves; the second type of electrolytic treatment equipment is at least provided with a fluid inlet and a fluid outlet;

5. The electrolysis device according to claim 2, wherein the skid-mounted unit further comprises at least a second type of electrolysis treatment equipment, skid-mounted pipelines, valves, monitoring and monitoring instruments; the second type of electrolytic treatment equipment is at least provided with a fluid inlet and a fluid outlet;

6. The electrolyzer of claim 2 characterized in that the skid units further comprise at least a second type of electrolytic treatment equipment, skid lines, valves, sensors; the second type of electrolytic treatment equipment is at least provided with a fluid inlet and a fluid outlet;

7. The electrolyzer apparatus of claim 2 characterized in that the skid units further comprise at least a second type of electrolytic treatment equipment, skid pipelines, valves, monitoring and monitoring instruments, sensors; the second type of electrolytic treatment equipment is at least provided with a fluid inlet and a fluid outlet;

the second type of electrolytic treatment equipment is fixed on the skid-mounted chassis and is arranged in the skid-mounted bracket; the skid-mounted pipeline is connected with at least one of a fluid inlet and a fluid outlet of the second type of electrolytic treatment equipment; the monitoring and monitoring instrument and the sensor are arranged on the prying pipeline connected to a fluid inlet or a fluid outlet of the second type of electrolytic treatment equipment; and/or the sensor is disposed within the second type of electrolytic processing device, or at a fluid inlet or a fluid outlet of the second type of electrolytic processing device;

8. The electrolysis installation according to any one of claims 1 to 7, wherein the first type of electrolytic treatment equipment comprises at least one of an electrolysis cell, an ion exchange resin column, a dechlorination column, a circulation tank, a brine recovery equipment, a wastewater equipment, a finished caustic tank.

9. The electrolysis installation according to any one of claims 4 to 7, wherein the second type of electrolytic treatment apparatus comprises at least one of a dechlorinated light salt brine tank, a pump, a heat exchanger, and a cooler.

10. The electrolysis device according to claim 2, wherein the skid-mounted unit further comprises a shell and a skid-mounted top cover, the shell is sleeved on the periphery of the skid-mounted supports, or the shell is inserted between the skid-mounted supports to form an accommodating space; the skid-mounted top cover is fixedly connected with the skid-mounted support;