Sequence batch reactor and its analytical instrument electrode protection structure

Abstract

The utility model belongs to general physical or chemical method or device technical field, concretely relates to a sequencing batch type reaction tank and electrode protection structure of analysis instrument, the device includes: reaction tank, its bottom is equipped with discharge gate, flange short tube, its pipe orifice is inclined to set up in the lateral wall of reaction tank, and its entrance end is located below reaction liquid level, and still be equipped with electrode installation position on flange short tube, analysis instrument electrode is inserted on electrode installation position, and the detection end of analysis instrument electrode extends to the intraluminal of flange short tube, butterfly valve is set up in the flange connection of flange short tube and is initially closed, when the reaction liquid in reaction tank is discharged through discharge gate, the flange short tube is intercepted with butterfly valve cooperation reaction liquid and forms liquid seal area, makes the detection end of analysis instrument electrode immerse in liquid seal area.

Description

Technical Field

[0001] This utility model belongs to the technical field of general physical or chemical methods or devices, and particularly relates to a sequencing batch reactor and its analytical instrument electrode protection structure. Background Technology

[0002] To adapt to complex water quality and long reaction times, reaction devices used for physicochemical treatment of waste liquid generally adopt a sequential batch process, meaning that waste liquid and added reagents are not continuously input during the reaction process until the previous batch is completely finished. At the same time, in order to accurately control reaction conditions and reagent dosage, the reaction device is usually equipped with analytical instruments (such as online pH meters and ORP meters).

[0003] Conventional analytical instruments typically mount electrodes to reaction vessels using either top flange mounting or side wall mounting. These methods result in the electrode tips being exposed to air between batches, especially in applications with low reaction frequency. Prolonged exposure of the electrode tips to air can lead to degradation of the reference electrode performance and electrode contamination.

[0004] Therefore, how to avoid prolonged exposure of the electrode tips of analytical instruments to air, which would lead to a decline in electrode performance, is a technical problem that urgently needs to be solved by those skilled in the art.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0006] This disclosure provides at least one embodiment of a sequencing batch reactor and its analytical instrument electrode protection structure.

[0007] In a first aspect, embodiments of this disclosure provide a sequencing batch reactor, comprising: The reaction vessel has a discharge port at the bottom; A flanged short pipe with its opening inclined downwards is installed on the side wall of the reaction vessel, and its inlet end is located below the liquid level of the reaction liquid. An electrode mounting position is also provided on the flanged short pipe. The analytical instrument electrode is inserted into the electrode mounting position, and the detection end of the analytical instrument electrode extends into the cavity of the flange short pipe. A butterfly valve is installed at the flange connection of a flanged short pipe and is initially in the closed state. When the reaction liquid in the reaction vessel is discharged through the outlet, the flange short pipe and the butterfly valve cooperate to intercept the reaction liquid and form a liquid seal zone, so that the detection end of the analytical instrument electrode is immersed in the liquid seal zone.

[0008] In one alternative embodiment, the downward tilt angle of the flange short pipe ranges from 15° to 75°.

[0009] In one optional embodiment, the inner wall of the electrode mounting position is provided with internal threads; The upper end of the electrode of the analytical instrument is provided with an external threaded connection part; The external threaded connection engages and is fixed with the internal thread, so that the detection end of the analytical instrument electrode hangs in the cavity of the flange short pipe.

[0010] In one optional embodiment, a support member is provided between the flange short pipe and the side wall of the reaction vessel, and the support member is a triangular reinforcing rib structure.

[0011] In one optional embodiment, the outlet end of the flanged short pipe is provided with a connector for connecting an external pipe.

[0012] Secondly, embodiments of this disclosure also provide an analytical instrument electrode protection structure for a sequencing batch reactor, which is inclinedly disposed on the side wall of the reactor, comprising: A flanged short pipe, the inlet end of which is connected to the reaction vessel and located below the liquid level in the reaction vessel; The electrode mounting position is located on the pipe wall of the flange short pipe; The analytical instrument electrode is inserted into the electrode mounting position, and the detection end of the analytical instrument electrode extends into the cavity of the flange short pipe. A butterfly valve is installed at the flange connection of a flanged short pipe and is initially in the closed state. When the flange short pipe is immersed in the reaction liquid, the inlet end of the flange short pipe and the butterfly valve form a closed space, trapping the reaction liquid to form a liquid seal area, so that the detection end of the analytical instrument electrode is immersed in the liquid seal area.

[0013] In one alternative embodiment, the angle between the flange short pipe and the side wall of the reaction vessel ranges from 15° to 75°.

[0014] In one optional embodiment, the inner wall of the electrode mounting position is provided with internal threads; The upper end of the electrode of the analytical instrument is provided with an external threaded connection part; The external threaded connection engages and is fixed with the internal thread, so that the detection end of the analytical instrument electrode hangs in the cavity of the flange short pipe.

[0015] In one optional embodiment, the outlet end of the flanged short pipe is provided with a connector for connecting an external pipe.

[0016] The beneficial effect of this invention is that the sequencing batch reactor has a flanged short pipe installed on the side wall of the tank. When the reaction liquid is discharged through the outlet, the flanged short pipe and the butterfly valve cooperate to form a sealed cavity, which forcibly traps the reaction liquid to form a liquid seal zone. This ensures that the detection end of the analytical instrument electrode is always immersed in the reaction liquid in the liquid seal zone, thereby avoiding the electrode end of the analytical instrument being exposed to the air for a long time, which would lead to a decline in electrode performance.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and drawings.

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A structural diagram of the normal liquid level of a sequencing batch reactor provided in an embodiment of this disclosure; Figure 2 This is a structural diagram of a sequencing batch reactor after the liquid level drops, provided in an embodiment of the present disclosure. Figure 3 This is a structural diagram showing the normal liquid level of a traditional sequencing batch reactor. Figure 4 This is a structural diagram of a traditional sequencing batch reactor after the liquid level has dropped.

[0021] In the picture: 100. Reaction vessel; 110. Discharge port; 120. Reaction liquid; 200. Flange short pipe; 210. Inlet end; 220. Electrode mounting position; 230. Outlet end; 240. Connecting parts; 300. Analytical instrument electrode; 310. Detection end; 320. External threaded connection; 400. Butterfly valve; 500. Liquid seal area; 600. Support component; 700. External pipeline. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0024] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0025] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0026] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0027] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0028] Research has revealed drawbacks in existing technologies: conventional analytical instruments typically use top flange mounting or side wall mounting for electrode installation on the reaction vessel. These methods result in the electrode tips being exposed to air during the intervals between batches, especially in applications with low reaction frequency. Prolonged exposure of the electrode tips to air can lead to degradation of the reference electrode performance and electrode contamination.

[0029] Based on the above research, this disclosure provides a sequencing batch reactor that, through the coordinated operation of an inclined flange short pipe and a butterfly valve, forces the reaction liquid to be retained to form a liquid seal zone during the discharge process, ensuring that the detection end of the sensitive analytical instrument electrode is always immersed in the reaction liquid, thus solving the above-mentioned problems.

[0030] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0033] See Figure 1This disclosure provides a sequencing batch reactor 100, comprising: a reactor 100 for storing a reaction liquid 120. The reactor 100 has a discharge port 110 at its bottom, from which the reaction liquid 120 is discharged after the reaction is complete. A flanged short pipe 200 is provided on the side wall of the reactor 100. The opening of the flanged short pipe 200 is inclined downwards at an angle of 15°-75°, preferably 45°. The inlet end 210 of the flanged short pipe 200 communicates with the reactor 100 and is located below the level of the reaction liquid 120.

[0034] See Figure 2 An electrode mounting position 220 is also provided on the flange short pipe 200. An analytical instrument electrode 300 is inserted into the electrode mounting position 220, and the detection end 310 of the analytical instrument electrode 300 extends into the cavity of the flange short pipe 200. A butterfly valve 400 is provided at the flange connection of the flange short pipe 200, and the butterfly valve 400 is initially in the closed state. After the reaction liquid 120 is injected into the reaction tank 100 to reach the designated liquid level, part of the reaction liquid 120 flows into the flange short pipe 200. Since the butterfly valve 400 is in the closed state, the flange short pipe 200 forms a sealed cavity with only an opening at the upper end, and the reaction liquid 120 forms a liquid seal zone 500 in the flange short pipe 200. When the reaction solution 120 is completed and discharged through the outlet 110, the inclined flange short pipe 200 traps the reaction solution 120 in the liquid seal area 500. The liquid level at the inlet end 210 is always higher than the detection end 310, so that the detection end 310 of the analyzer electrode 300 is immersed in the reaction solution 120 in the liquid seal area 500, thereby avoiding the electrode end of the analyzer being exposed to the air for a long time, which would lead to a decrease in electrode performance.

[0035] See Figure 3 and Figure 4 , Figure 3 This is a structural diagram of a traditional sequencing batch reactor at a normal liquid level of 100. Figure 4 This is a structural diagram showing the drop in liquid level after the reaction in a traditional sequencing batch reactor 100 is completed and the reaction liquid 120 is discharged. Figure 3 In the reaction vessel 100, the liquid level is at a normal state before the reaction ends, allowing the detection end 310 of the analytical instrument electrode 300 to be immersed in the reaction solution 120; while Figure 4 After the reaction liquid 120 is discharged, the liquid level drops, and the detection end 310 of the analytical instrument electrode 300 is exposed to the air, which can easily lead to a decrease in the performance of the reference electrode. Compared with the traditional sequencing batch reactor 100, the sequencing batch reactor 100 provided in this embodiment, through the coordinated cooperation of the inclined flange short pipe 200 and the butterfly valve 400, forcibly retains the reaction liquid 120 to form a liquid seal zone 500 under the discharge condition, so that the detection end 310 of the sensitive analytical instrument electrode 300 is always immersed in the reaction liquid 120, avoiding the electrode detection end 310 being exposed to the air for a long time, which would lead to a decrease in electrode performance.

[0036] See also Figure 1 In some embodiments, the upper end of the analytical instrument electrode 300 is provided with an external threaded connection portion 320; the external threaded connection portion 320 engages and is fixed with the internal thread, so that the detection end 310 of the analytical instrument electrode 300 is suspended in the cavity of the flange short pipe 200. The use of a threaded connection method facilitates disassembly and assembly, and makes it convenient to maintain or replace the analytical instrument electrode 300.

[0037] See also Figure 1 In some embodiments, a support member 600 is provided between the flange short pipe 200 and the side wall of the reaction vessel 100. The support member 600 has a triangular reinforcing rib structure to increase the stability of the flange short pipe 200.

[0038] See also Figure 1 In some embodiments, the outlet end 230 of the flange short pipe 200 is provided with a connector 240 for connecting an external pipe 700. The external pipe 700 can be connected to a tap water pipe. After opening the butterfly valve 400, the detection end 310 of the analyzer electrode 300 can be flushed through the tap water pipe. Then, the external pipe 700 is connected to the electrode protective fluid delivery pipe to input the electrode protective fluid into the flange short pipe 200. After closing the butterfly valve 400, the detection end 310 of the electrode is immersed in the electrode protective fluid, which is suitable for long-term storage.

[0039] See Figure 1 and Figure 2 Some embodiments also provide a protective structure for an analytical instrument electrode 300 in a sequencing batch reactor 100, which is inclinedly disposed on the side wall of the reactor 100, including: a flange short pipe 200, the inlet end 210 of which is connected to the reactor 100 and located below the liquid level of the reactor 100; an electrode mounting position 220 disposed on the pipe wall of the flange short pipe 200; an analytical instrument electrode 300 inserted into the electrode mounting position 220, and the detection end 310 of the analytical instrument electrode 300 extending into the cavity of the flange short pipe 200; a butterfly valve 400 disposed at the flange connection of the flange short pipe 200 and initially in a closed state; when the flange short pipe 200 is immersed in the reaction liquid 120, the inlet end 210 of the flange short pipe 200 and the butterfly valve 400 form a closed space, and trap the reaction liquid to form a liquid seal area 500, so that the detection end 310 of the analytical instrument electrode 300 is immersed in the liquid seal area 500.

[0040] In summary, the sequencing batch reactor 100 has a flanged short pipe 200 installed on the side wall of the tank. When the reaction liquid 120 is discharged through the outlet 110, the flanged short pipe 200 and the butterfly valve 400 cooperate to form a closed cavity, forcibly trapping the reaction liquid 120 to form a liquid seal zone 500. This ensures that the detection end 310 of the analytical instrument electrode 300 is always immersed in the reaction liquid 120 in the liquid seal zone 500, thereby avoiding the electrode end of the analytical instrument being exposed to air for a long time, which would lead to a decline in electrode performance.

[0041] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0043] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0044] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0045] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A sequencing batch reactor, characterized in that, include: The reaction vessel (100) has a discharge port (110) at its bottom. A flange short pipe (200) is installed on the side wall of the reaction vessel (100) with its opening tilted downwards, and its inlet end (210) is located below the liquid level of the reaction liquid (120). An electrode mounting position (220) is also provided on the flange short pipe (200). An analytical instrument electrode (300) is inserted into the electrode mounting position (220), and the detection end (310) of the analytical instrument electrode (300) extends into the cavity of the flange short pipe (200); The butterfly valve (400) is installed at the flange connection of the flange short pipe (200) and is initially in the closed state; When the reaction liquid (120) in the reaction vessel (100) is discharged through the outlet (110), the cavity of the flange short pipe (200) is closed to form a liquid seal area (500), so that the detection end (310) of the analytical instrument electrode (300) is immersed in the liquid seal area (500).

2. The sequencing batch reactor (100) as described in claim 1, characterized in that, The downward tilt angle of the flange short pipe (200) ranges from 15° to 75°.

3. The sequencing batch reactor (100) as described in claim 1, characterized in that, The inner wall of the electrode mounting position (220) is provided with internal threads; The upper end of the analytical instrument electrode (300) is provided with an external threaded connection part (320). The external threaded connection (320) engages and is fixed with the internal thread, so that the detection end (310) of the analytical instrument electrode (300) is suspended in the cavity of the flange short pipe (200).

4. The sequencing batch reactor (100) as described in claim 1, characterized in that, A support member (600) is provided between the flange short pipe (200) and the side wall of the reaction vessel (100), and the support member (600) is a triangular reinforcing rib structure.

5. The sequencing batch reactor (100) as described in claim 1, characterized in that, The outlet end (230) of the flange short pipe (200) is provided with a connector (240) for connecting an external pipe (700).

6. A protective structure for an analytical instrument electrode (300) in a sequencing batch reactor (100), characterized in that, It is inclinedly arranged on the side wall of the reaction vessel (100), including: The flange short pipe (200) has its inlet end (210) connected to the reaction tank (100) and located below the liquid level of the reaction tank (100); The electrode mounting position (220) is located on the pipe wall of the flange short pipe (200); An analytical instrument electrode (300) is inserted into the electrode mounting position (220), and the detection end (310) of the analytical instrument electrode (300) extends into the cavity of the flange short pipe (200); The butterfly valve (400) is installed at the flange connection of the flange short pipe (200) and is initially in the closed state; When the flange short pipe (200) is immersed in the reaction liquid (120), the inlet end (210) of the flange short pipe (200) and the butterfly valve (400) form a closed space and trap the reaction liquid to form a liquid seal area (500), so that the detection end (310) of the analytical instrument electrode (300) is immersed in the liquid seal area (500).

7. The analytical instrument electrode (300) protection structure as described in claim 6, characterized in that, The angle between the flange short pipe (200) and the side wall of the reaction vessel (100) ranges from 15° to 75°.

8. The analytical instrument electrode (300) protection structure as described in claim 6, characterized in that, The inner wall of the electrode mounting position (220) is provided with internal threads; The upper end of the analytical instrument electrode (300) is provided with an external threaded connection part (320). The external threaded connection (320) engages and is fixed with the internal thread, so that the detection end (310) of the analytical instrument electrode (300) is suspended in the cavity of the flange short pipe (200).

9. The analytical instrument electrode (300) protection structure as described in claim 6, characterized in that, The outlet end (230) of the flange short pipe (200) is provided with a connector (240) for connecting an external pipe (700).

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