Online detection device for pH value of sewage

Abstract

The utility model relates to the technical field of sewage treatment, and provides a sewage pH value on-line detection device which comprises a support frame arranged on the upper edge of a sewage tank; the sampling barrel is fixedly connected to the supporting frame; a pH value detector; wherein the interior of the sampling barrel is divided into two buffer areas with communicated bottoms by a partition plate, a water inlet pipe and a water outlet pipe are respectively arranged on the side walls of the sampling barrel at the same height of the two buffer areas, the water inlet pipe is communicated with the sewage conveying pipeline to introduce sewage into the sampling barrel, and an outlet of the water outlet pipe faces downwards to introduce the sewage into the sewage tank; a measuring probe of the pH value detector is fixedly mounted at the top of the buffer area provided with the water outlet pipe so as to be immersed into flowing sewage to detect the pH value on line. Through the two buffer areas arranged in the sampling barrel and communicated with the bottoms and the water inlet pipe and the water outlet pipe which are arranged at the same height, the flow speed and impact force of sewage can be reduced, scouring of the sewage to a measuring probe of the pH value detector is reduced, the phenomena of corrosion, abrasion and the like are effectively prevented, and then the accuracy of a sewage pH value detection result is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an online detection device for pH value of sewage. Background Art

[0002] With the development of industrial production and the prosperity of social economy, human social activities will generate a large amount of sewage. If sewage is not treated in time, it will seriously pollute the living environment of human beings. Among the various indicators of sewage treatment, pH is an item that often needs to be tested and treated. The reasonable installation of pH value detection equipment for measuring pH is related to the final pH value detection accuracy and the service life of pH value detector. Accurate pH value has an important impact on the effect of sewage treatment.

[0003] During the sewage treatment process, sewage flows continuously in the pipeline, and the pH value of sewage may be different at different times, so it is necessary to conduct online continuous detection of sewage in the pipeline. When the pH detector measures the acidity and alkalinity of sewage in the pipeline online, due to the poor working environment of sewage and the high flow rate of sewage, the measuring probe of the pH detector will be washed away, thereby reducing the service life of the measuring probe of the pH detector. When there are particulates in the sewage, the measuring probe of the pH detector will be more seriously washed away and the corrosion will be aggravated. If effective measures are not taken, the service life of the measuring probe of the pH detector will be greatly reduced, the production cost will increase, and the pH test results will be affected. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an online detection device for the pH value of sewage to solve the problem that the service life of the measuring probe of the existing pH value detector is greatly reduced due to the scouring of sewage with a high flow rate and containing particles.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sewage pH value online detection device, comprising:

[0007] A support frame is arranged on the upper edge of the sewage tank;

[0008] A sampling tube is fixedly connected to the support frame; and

[0009] pH value tester;

[0010] Among them, the interior of the sampling cylinder is divided into two buffer zones connected at the bottom by a partition, and a water inlet pipe and a water outlet pipe are respectively provided on the side walls of the sampling cylinder at the same height of the two buffer zones. The water inlet pipe is connected to the sewage conveying pipeline to introduce the sewage into the sampling cylinder, and the outlet of the water outlet pipe is downward to guide the sewage into the sewage tank; the measuring probe of the pH value detector is fixedly installed on the top of the buffer zone provided with the water outlet pipe to be immersed in the flowing sewage to detect the pH value online.

[0011] In one embodiment disclosed in the present application, the sampling tube includes a straight tube and a cone bucket arranged up and down, and the partition is arranged in the straight tube parallel to the axis of the straight tube to divide the straight tube into two;

[0012] The water inlet pipe and the water outlet pipe are respectively connected to the side wall of the straight tube bounded by the partition at the same height.

[0013] In one embodiment disclosed in the present application, the water outlet direction of the water inlet pipe is parallel to the plate surface of the partition.

[0014] In one embodiment disclosed in the present application, a semicircular cover plate is connected to the top of the straight cylinder;

[0015] The cover plate is covered on the top of the buffer zone where the water inlet pipe is provided, so as to prevent sewage from splashing around when entering.

[0016] In one embodiment disclosed in the present application, a discharge hole having a diameter smaller than the inner diameter of the water inlet pipe is provided at the bottom of the cone bucket;

[0017] The water discharged from the discharge hole flows into the sewage tank.

[0018] In one embodiment disclosed in the present application, the measuring probe is fixedly mounted on the top of the buffer zone where the water outlet pipe is provided through a support plate;

[0019] The support plate is fixedly connected to the middle portion of the upper edge of the partition plate.

[0020] In one embodiment disclosed in the present application, the partition is vertically welded inside the straight cylinder;

[0021] The lower edge of the straight tube is connected to the upper edge of the cone bucket by welding;

[0022] The arc edge of the cover plate is welded to the upper edge of the straight tube, and the straight edge is welded to the upper edge of the partition;

[0023] The support plate is connected to the partition plate by welding at the middle of the upper edge.

[0024] In one embodiment disclosed in the present application, the support frame includes a pair of channel steels and a steel ring bent from angle steels;

[0025] One end of a pair of the channel steels is welded to the upper edge of the sewage tank, and the top surface is welded to the steel ring;

[0026] The steel ring is fixedly sleeved on the outer periphery of the lower edge of the straight tube in a welding manner.

[0027] Compared with the prior art, the beneficial effects of the utility model are:

[0028] 1. By setting two buffer zones connected at the bottom of the sampling tube and the water inlet and outlet pipes set at the same height, the flow rate and impact force of sewage can be reduced, thereby reducing the scouring of the measuring probe of the pH value detector, effectively preventing corrosion, wear and other phenomena, and thus ensuring the accuracy of the sewage pH value test results.

[0029] 2. The sewage flows out from the discharge hole at the bottom of the cone bucket, and the sediment on the cone surface of the cone bucket can be taken away in time to avoid clogging the bottom channel of the sampling tube, thereby maintaining the continuous flow of sewage and realizing continuous online detection of the pH value of sewage, thereby improving the accuracy of the sewage pH value detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model installed on a sewage tank;

[0032] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0033] Figure 3 It is a schematic diagram of the cross-sectional structure of the sampling tube (excluding the water inlet pipe and the water outlet pipe). DETAILED DESCRIPTION

[0034] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0040] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0041] See also Figure 1 to Figure 3 As shown, the utility model provides an online detection device for pH value of sewage, comprising:

[0042] The support frame 200 is arranged on the upper edge of the sewage tank 100;

[0043] The sampling tube 300 is fixedly connected to the support frame 200; and

[0044] pH value detector (not shown);

[0045] Among them, the interior of the sampling cylinder 300 is divided into two buffer zones connected at the bottom by a partition 310, and an inlet pipe 320 and an outlet pipe 330 are respectively provided on the side walls of the sampling cylinder 300 at the same height of the two buffer zones (that is, the inlet pipe 320 and the outlet pipe 330 are each connected to a buffer zone, and their connecting interfaces are at the same height), the inlet pipe 320 is connected to a sewage conveying pipeline (not shown in the figure) to introduce sewage into the sampling cylinder 300, and the outlet of the outlet pipe 330 is downward to guide the sewage into the sewage tank 100; the measuring probe 400 of the pH value detector is fixedly installed on the top of the buffer zone provided with the outlet pipe 330 to be immersed in the flowing sewage to detect the pH value online.

[0046] Specifically, the sewage in the sewage conveying pipeline enters the first buffer zone of the sampling cylinder 300 through the water inlet pipe 320. Since the diameter of the sampling cylinder 300 is much larger than the sewage conveying pipeline, the flow rate and impact force of the sewage entering the sampling cylinder 300 are reduced. Then, the sewage flows downward through the bottom of the sampling cylinder 300 into the second buffer zone, and its flow direction changes, so that the flow rate and impact force of the sewage in this area are reduced again. When the sewage flows, its scouring force on the pH value detector measuring probe 400 installed on the top of the area is greatly reduced. The sewage gradually fills the second buffer zone and flows into the sewage tank 100 through the water outlet pipe 330 for purification. Since the water inlet pipe 320 and the water outlet pipe 330 are respectively at the same height with the connecting interface of the corresponding buffer zone, when the two buffer zones of the sampling cylinder 300 are filled with sewage, when the sewage flows into the first buffer zone from the water inlet pipe 320, the sewage in the second buffer zone can continuously flow out from the water outlet pipe 330, thereby ensuring that the measuring probe 400 of the pH value detector immersed in the flowing sewage in the second buffer zone can continuously detect the pH value of the sewage online in real time. That is to say, by providing two buffer zones in the sampling tube 300 and connected at the bottom and the water inlet pipe 320 and the water outlet pipe 330 arranged at the same height, the flow rate and impact force of the sewage can be reduced, thereby reducing the scouring of the pH detector measuring probe 400, effectively preventing corrosion, wear and the like, thereby ensuring the accuracy of the sewage pH value detection results.

[0047] The sampling tube 300 includes a straight tube 340 and a cone bucket 350 arranged up and down, and a partition 310 is arranged in the straight tube 340 parallel to the axis of the straight tube 340 to divide the straight tube 340 into two (i.e., the two buffer zones mentioned above); the water inlet pipe 320 and the water outlet pipe 330 are respectively connected to the side wall of the straight tube 340 bounded by the partition 310 at the same height. That is, the two buffer zones are located in the straight tube 340 and are connected through the cone bucket 350 below.

[0048] The water outlet direction of the water inlet pipe 320 is parallel to (or tangent to) the plate surface of the partition 310. When the sewage flows from the water inlet pipe 320 into the first buffer zone of the straight tube 340, it is washed on the inner wall of the straight tube 340 under the guidance of the partition 310, and then changes direction under the influence of its own gravity to flow downward into the cone bucket 350, and then changes direction again to slowly fill the second buffer zone from the bottom; after two changes of direction, the impact force of the sewage flow is greatly reduced.

[0049] A semicircular cover plate 360 ​​is connected to the top of the straight cylinder 340; the cover plate 360 ​​covers the top of the buffer zone where the water inlet pipe 320 is provided, so as to prevent the sewage from splashing around when entering.

[0050] In order to reduce the particles deposited on the conical surface of the cone bucket 350 when the sewage flows through the cone bucket 350, a discharge hole 351 with a hole diameter smaller than the inner diameter of the water inlet pipe 320 is provided at the bottom of the cone bucket 350, and the water discharged from the discharge hole 351 flows into the sewage tank 100. The sewage entering the first buffer zone flows into the cone bucket 350, and part of the sewage is redirected to enter the second buffer zone at the cone bucket 350, and the other part of the sewage enters the sewage tank 100 through the discharge hole 351 of the cone bucket 350. At the same time, the sediments deposited on the conical surface of the cone bucket 350 due to the deceleration of the sewage in the first buffer zone and the cone bucket 350 and the reduction of the scouring energy can be brought into the sewage tank 100; in addition, when the measuring probe 400 of the pH value detector is in working state, the worker can conveniently clean the sediments on the conical surface of the cone bucket 350 directly from the top of the buffer zone where the water outlet pipe 330 is provided so as to be brought into the sewage tank 100 through the flowing sewage. That is to say, by allowing the sewage to flow out from the discharge hole 351 provided at the bottom of the cone bucket 350, the sediment on the cone surface of the cone bucket 350 can be taken away in time to avoid clogging the bottom channel of the sampling tube 300, thereby maintaining the continuous flow of sewage and realizing continuous online detection of the pH value of the sewage, thereby improving the accuracy of the sewage pH value detection results.

[0051] See also Figure 1 and Figure 2 As shown, the measuring probe 400 is fixedly installed on the top of the buffer zone where the water outlet pipe 330 is provided through the support plate 410 , and the support plate 410 is fixedly connected to the middle part of the upper edge of the partition plate 310 .

[0052] In this embodiment, the partition 310 is vertically welded to the inside of the straight cylinder 340, the lower edge of the straight cylinder 340 is connected to the upper edge of the cone 350 by welding, the arc edge of the cover plate 360 ​​is welded to the upper edge of the straight cylinder 340, the straight edge is welded to the upper edge of the partition 310, and the support plate 410 is welded to the middle of the upper edge of the partition 310.

[0053] The support frame 200 includes a pair of channel steels 210 and a steel ring 220 bent from angle steel. One end of the pair of channel steels 210 is welded to the upper edge of the sewage tank 100, and the top surface is welded to the steel ring 220. The steel ring 220 is fixedly sleeved on the outer periphery of the lower edge of the straight tube 340 by welding.

[0054] In summary, the device can reduce the sewage flow rate and the impact of the solid particles contained therein through the two buffer zones in the straight cylinder 340, and at the same time can make large solid particles deposit in the cone bucket 350 and be automatically discharged by the flowing sewage, effectively reducing the scouring and wear of the pH detector by sewage with a high flow rate and containing solid particles, thereby ensuring the pH test results.

[0055] The above embodiments are only preferred embodiments of the present utility model and are not limitations on the technical solutions of the present utility model. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present utility model.

Claims

1. A sewage pH value online detection device, characterized in that: include: A support frame is arranged on the upper edge of the sewage tank; A sampling tube, fixedly connected to the support frame; and pH value tester; Among them, the interior of the sampling cylinder is divided into two buffer zones connected at the bottom by a partition, and a water inlet pipe and a water outlet pipe are respectively provided on the side walls of the sampling cylinder at the same height of the two buffer zones. The water inlet pipe is connected to the sewage conveying pipeline to introduce the sewage into the sampling cylinder, and the outlet of the water outlet pipe is downward to guide the sewage into the sewage tank; the measuring probe of the pH value detector is fixedly installed on the top of the buffer zone provided with the water outlet pipe to be immersed in the flowing sewage to detect the pH value online.

2. The sewage pH value online detection device according to claim 1 is characterized in that: The sampling tube comprises a straight tube and a cone bucket arranged up and down, and the partition is arranged in the straight tube parallel to the axis of the straight tube to divide the straight tube into two parts; The water inlet pipe and the water outlet pipe are respectively connected to the side wall of the straight tube bounded by the partition at the same height.

3. The sewage pH value online detection device according to claim 1 or 2, characterized in that: The water outlet direction of the water inlet pipe is parallel to the plate surface of the partition.

4. The sewage pH value online detection device according to claim 2 is characterized in that: A semicircular cover plate is connected to the top of the straight cylinder; The cover plate is covered on the top of the buffer zone where the water inlet pipe is provided, so as to prevent sewage from splashing around when entering.

5. The sewage pH value online detection device according to claim 4 is characterized in that: The bottom of the cone bucket is provided with a discharge hole whose diameter is smaller than the inner diameter of the water inlet pipe; The water discharged from the discharge hole flows into the sewage tank.

6. The sewage pH value online detection device according to claim 5 is characterized in that: The measuring probe is fixedly mounted on the top of the buffer zone where the water outlet pipe is provided through a supporting plate; The support plate is fixedly connected to the middle portion of the upper edge of the partition plate.

7. The sewage pH value online detection device according to claim 6 is characterized in that: The partition is vertically welded inside the straight cylinder; The lower edge of the straight tube is connected to the upper edge of the cone bucket by welding; The arc edge of the cover plate is welded to the upper edge of the straight tube, and the straight edge is welded to the upper edge of the partition; The support plate is connected to the partition plate by welding at the middle of the upper edge.

8. The sewage pH value online detection device according to claim 2 or 7, characterized in that: The support frame includes a pair of channel steels and a steel ring bent from angle steels; One end of a pair of the channel steels is welded to the upper edge of the sewage tank, and the top surface is welded to the steel ring; The steel ring is fixedly sleeved on the outer periphery of the lower edge of the straight tube in a welding manner.

Images