External PH detection device for wet desulfurization tower kettle

By installing a brush on the outer surface of the glass tube of the external PH detection device of the wet desulfurization tower kettle and cleaning it with an electric push rod, the scale pollution problem is solved, the accuracy and stability of PH detection are improved, and the accuracy of PH detection is ensured.

CN223091888UActive Publication Date: 2025-07-11HUNAN ZHITIAN ENVIRONMENTAL PROTECTION ENG CO LTD
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Patent Information

Application Number
CN202422243407.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-13
Publication Date
2025-07-11
Estimated Expiration
2034-09-13

AI Technical Summary

Technical Problem

During the use of the existing external PH detection device of the wet desulfurization tower kettle, impurity particles such as scale in the liquid are easily adsorbed on the outer surface of the PH detection glass tube, resulting in bubble contamination, affecting ion circulation, and reducing the PH detection accuracy.

Method used

An external PH detection device for wet desulfurization tower kettle was designed. By placing a brush on the outer surface of the glass tube, an electric push rod was used to drive the brush to clean the glass tube and the bubble surface to avoid impurities, and combining the limit rod and the slide chute to improve the stability and sealing of the mounting base to ensure the accuracy of PH detection.

Benefits of technology

It effectively prevents contamination of impurities such as scale, improves the accuracy and stability of PH detection, and ensures the accuracy of PH detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model particularly relates to the field of desulfurization equipment, and discloses an external PH detection device for a wet desulfurization tower kettle, which comprises a tower body and a PH detector, the PH detector comprises a base, the outer surface of the base is sleeved with a first mounting seat, the end part of the base penetrates through the first mounting seat and is fixedly provided with a glass tube, the end part of the glass tube is fixedly provided with a bulb, and the bulb is fixedly connected with the tower body. A wiring terminal is inserted into the other end of the base, and an electric push rod is fixedly arranged on the surface, close to the base, of the first mounting base. The PH detector, the first mounting seat, the electric push rod, the second mounting seat, the third mounting seat, the clamping block and the brush are arranged. The PH detector comprises a base inserted in the middle of the first mounting seat and a glass tube, the brush is made of nylon and evenly arranged on the outer surface of the glass tube in a sleeving mode, and the third mounting seat can be driven to horizontally move when the electric push rod is started, so that the brush is driven to evenly clean the outer surface of the glass tube and the outer surface of the bulb, pollution caused by adhesion of impurities such as incrustation scale is avoided, and the PH detection precision is improved.
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Description

Technical Field

[0001] The utility model belongs to the field of desulfurization equipment, and particularly relates to an external PH detection device for a wet desulfurization tower kettle. Background Art

[0002] Wet desulfurization features that the desulfurization system is located at the end of the flue and after the dust collector. The reaction temperature during the desulfurization process is lower than the dew point, so the flue gas after desulfurization needs to be reheated before being discharged. Since it is a gas-liquid reaction, its desulfurization reaction speed is fast, the efficiency is high, and the utilization rate of desulfurization additives is high, which is suitable for flue gas desulfurization in large coal-fired power plants. During the desulfurization process of the wet desulfurization tower kettle, an external PH detection device is required to detect the PH value of the solution in the tower kettle, so as to facilitate the operator to master the degree of desulfurization reaction, accurately control the concentration of the desulfurization solution, and ensure the normal progress of the desulfurization reaction.

[0003] The existing external PH detection device for wet desulfurization tower kettles usually uses a glass electrode method PH detector for detection. A sensor is built into the measuring tube of the PH detector, and the sensor works by generating a voltage proportional to the concentration of H ions in the liquid. The sensor is usually protected by being built into a glass tube. The sensor includes a PH sensitive electrode sensor and a reference electrode sensor, and the two form a circuit. The end of the PH sensitive electrode has a glass bulb. The concentration of H ions in the fluid around the bulb will cause a change in the voltage difference inside and outside the PH sensitive electrode. By observing the voltage of the reference electrode, the PH value can be measured.

[0004] During the use of the existing external PH detection device for wet desulfurization tower kettles, impurity particles such as scale in the liquid are easily adsorbed on the outer surface of the PH detection glass tube, resulting in bulb contamination, affecting ion circulation, and thus affecting the accuracy of PH detection. Summary of the Utility Model

[0005] The utility model provides an external PH detection device for a wet desulfurization tower kettle, aiming to solve the problem that during the use of the existing external PH detection device for wet desulfurization tower kettles, impurity particles such as scale in the liquid are easily adsorbed on the outer surface of the PH detection glass tube, resulting in bulb contamination, affecting ion circulation, and thus affecting the accuracy of PH detection.

[0006] The present utility model is realized as follows. A wet desulfurization tower bottom external PH detection device includes a tower body and a PH detector. The PH detector includes a base, an installation seat one is sleeved on the outer surface of the base, a glass tube is fixedly arranged through the end of the base and the installation seat one, a bulb is fixedly arranged at the end of the glass tube, a wiring terminal is inserted at the other end of the base, an electric push rod is fixedly arranged on the surface of the installation seat one close to the base, the output end of the electric push rod penetrates through the installation seat one and is fixedly provided with an installation seat three, the installation seat three is sleeved on the outer surface of the glass tube in a circular ring shape, a clamping block is clamped on the inner side wall of the installation seat three, and a brush is embedded on the inner side wall of the clamping block.

[0007] Preferably, an installation seat two is fixedly arranged on the side wall of the tower body close to the installation seat one. The external dimensions of the installation seat two are adapted to those of the installation seat one. A notch one is opened in the middle of the installation seat two, and the notch one penetrates through the side wall of the tower body for the installation seat three to be inserted, improving the convenience of the movement of the installation seat three.

[0008] Preferably, notch one is opened at each of the four corner positions of the installation seat one, notch two is opened at each of the four corner positions of the installation seat two, and the internal dimensions of the notch two and the notch one are the same for bolt connection, improving the stability of the installation of the installation seat one.

[0009] Preferably, a convex block is fixedly arranged on the side wall of the installation seat one close to the wiring terminal, a notch two is opened on the surface of the installation seat two for the convex block to be inserted, and the internal dimensions of the notch two are adapted to the external dimensions of the convex block, improving the sealing performance of the connection between the installation seat one and the installation seat two.

[0010] Preferably, two limiting rods are fixedly arranged on the side wall of the installation seat one close to the convex block, and both of the two limiting rods are cylindrical.

[0011] Preferably, two sliding grooves are symmetrically opened on the side wall of the installation seat three for the limiting rods to be inserted, and the external dimensions of the limiting rods are adapted to the internal dimensions of the sliding grooves, improving the stability of the movement of the installation seat three.

[0012] Preferably, a notch three is opened on the inner side wall of the installation seat three close to the clamping block. The clamping block is made of rubber, and the external dimensions of the clamping block are adapted to the internal dimensions of the notch three, improving the convenience of the installation and replacement of the brush.

[0013] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0014] First, it is provided with a PH detector, a first mounting seat, an electric push rod, a second mounting seat, a third mounting seat, a clamping block and a brush. The PH detector includes a base and a glass tube inserted in the middle of the first mounting seat. The brush is made of nylon and evenly sleeved on the outer surface of the glass tube. When the electric push rod is started, it can drive the third mounting seat to move horizontally, thereby driving the brush to evenly clean the outer surfaces of the glass tube and the bulb, thus avoiding the attachment and pollution of impurities such as water scale and improving the accuracy of PH detection; Secondly, by providing a limiting rod and a sliding groove, the outer dimensions of the two limiting rods are adapted to the inner dimensions of the sliding groove to limit the lateral displacement of the third mounting seat, thereby improving the stability of the movement of the third mounting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view three-dimensional structural schematic diagram of the present utility model.

[0016] Figure 2 It is a side view three-dimensional structural schematic diagram of the first mounting seat of the present utility model.

[0017] Figure 3 It is a front view three-dimensional structural schematic diagram of the second mounting seat of the present utility model.

[0018] Figure 4 It is a side view sectional structural schematic diagram of the third mounting seat of the present utility model.

[0019] The reference numerals are: 1, tower body; 2, PH detector; 201, base; 202, terminal; 203, glass tube; 204, bulb; 3, first mounting seat; 4, electric push rod; 5, second mounting seat; 6, third mounting seat; 7, clamping block; 8, brush; 9, limiting rod; 10, convex block; 11, first hole groove; 12, first notch; 13, second notch; 14, second hole groove; 15, third notch; 16, sliding groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0021] Reference to "embodiment" in this document means that the specific features, structures, or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The phrase appears at various places in the specification and does not necessarily refer to the same embodiment each time, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0022] Please refer to Figures 1-4 , the embodiment provided by the present utility model: a wet desulfurization tower bottom external PH detection device, which includes a tower body 1 and a PH detector 2. The PH detector 2 includes a base 201, and an installation seat one 3 is sleeved on the outer surface of the base 201. The end of the base 201 penetrates through the installation seat one 3 and is fixedly provided with a glass tube 203. The fixed connection of the base 201 and the installation seat one 3 forms an integral structure, which improves the installation stability of the glass tube 203. A bulb 204 is fixedly provided at the end of the glass tube 203. A PH sensitive electrode sensor and a reference electrode sensor are installed inside the glass tube 203, and the two form a circuit. A terminal block 202 is inserted at the other end of the base 201 to facilitate the connection of a voltmeter to display the voltage. The voltmeter is a prior art and will not be elaborated here. An electric push rod 4 is fixedly provided on the surface of the installation seat one 3 close to the base 201 through bolts. The output end of the electric push rod 4 penetrates through the installation seat one 3 and is fixedly provided with an installation seat three 6 through a coupling. The installation seat three 6 is made of plastic and is in a circular ring shape. An installation seat two 5 is fixedly provided on the side wall of the tower body 1 close to the installation seat one 3. The external dimensions of the installation seat two 5 are adapted to the external dimensions of the installation seat one 3. A notch one 12 is opened in the middle of the installation seat two 5, and the notch one 12 penetrates through the side wall of the tower body 1 for the installation seat three 6 to be inserted, which improves the convenience of the movement of the installation seat three 6. Hole slots one 11 are opened at the four corner positions of the installation seat one 3, and hole slots two 14 are opened at the four corner positions of the installation seat two 5. The internal dimensions of the hole slots two 14 and the hole slots one 11 are the same for bolt connection, which improves the installation stability of the installation seat one 3. The installation seat three 6 is in a circular ring shape and is sleeved on the outer surface of the glass tube 203. A clamping block 7 is clamped on the inner side wall of the installation seat three 6. A notch three 15 is opened on the inner side wall of the installation seat three 6 close to the clamping block 7. The external dimensions of the clamping block 7 are adapted to the internal dimensions of the notch three 15. The clamping block 7 is made of rubber and has elasticity, which improves the convenience of the installation and replacement of the brush 8. A brush 8 is embedded on the inner side wall of the clamping block 7. The brush 8 is made of nylon and is evenly sleeved on the outer surface of the glass tube 203. When the electric push rod 4 is started, it can drive the installation seat three 6 to move horizontally, thereby driving the brush 8 to evenly clean the outer surfaces of the glass tube 203 and the bulb 204, so as to avoid the attachment and pollution of impurities such as water scale and improve the accuracy of PH detection.

[0023] A bump 10 is fixedly provided on the side wall of the first mounting seat 3 close to the terminal 202. A notch 13 is formed on the surface of the second mounting seat 5 for the bump 10 to be inserted. The internal dimensions of the notch 13 are adapted to the external dimensions of the bump 10, improving the sealing performance of the connection between the first mounting seat 3 and the second mounting seat 5.

[0024] Two limiting rods 9 are fixedly provided on the side wall of the first mounting seat 3 close to the bump 10. Both of the two limiting rods 9 are cylindrical. Two sliding grooves 16 are symmetrically formed on the side wall of the third mounting seat 6 for the limiting rods 9 to be inserted. The external dimensions of the limiting rods 9 are adapted to the internal dimensions of the sliding grooves 16. The limiting rods 9 can limit the lateral displacement of the third mounting seat 6, improving the stability of the movement of the third mounting seat 6.

[0025] Working principle: When this wet flue gas desulfurization tower bottom external PH detection device is in use, the operator first externally connects the power supply, inserts the third mounting seat 6 and the bump 10 into the notch 12 and the notch 13 in sequence, and then connects bolts into the hole grooves 11 and the hole grooves 14 in sequence, thereby realizing the installation of the device. The concentration of H ions in the fluid around the bulb 204 will cause a change in the voltage difference inside and outside the PH sensitive electrode installed inside the glass tube 203. By observing the voltage of the reference electrode, the PH value can be measured. The PH sensitive electrode and the reference electrode are both prior arts and will not be elaborated here. When impurities adhere to the outer surfaces of the glass tube 203 and the bulb 204 after the detection device is used for a long time, the operator can drive the third mounting seat 6 to move horizontally by regularly starting the electric push rod 4, thereby driving the brush 8 to move synchronously to clean the surfaces of the glass tube 203 and the bulb 204, improving the cleanliness of the surfaces of the glass tube 203 and the bulb 204, and thus reducing measurement interference and improving the accuracy of PH measurement.

[0026] Secondly, the external dimensions of the two limiting rods (9) are both adapted to the internal dimensions of the sliding grooves (16), which can limit the lateral displacement of the third mounting seat (6), thereby improving the stability of the horizontal movement of the third mounting seat (6).

[0027] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0028] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the above-mentioned units may have other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or communication connection between each other can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0029] The units described above as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative efforts, combine, add, delete or make other adjustments to the features in the embodiments of the present invention according to the situation, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention. These technical solutions also belong to the scope of protection of the present invention.

Claims

1. A wet desulfurization tower bottom external PH detection device, characterized in that, It includes a tower body (1) and a pH detector (2): The pH detector (2) includes a base (201). An installation base one (3) is sleeved on the outer surface of the base (201). A glass tube (203) is fixedly arranged through the end of the base (201) on the installation base one (3). A bulb (204) is fixedly arranged at the end of the glass tube (203). A terminal block (202) is inserted at the other end of the base (201). An electric push rod (4) is fixedly arranged on the surface of the installation base one (3) close to the base (201). The output end of the electric push rod (4) penetrates through the installation base one (3) and is fixedly provided with an installation base three (6). The installation base three (6) is sleeved on the outer surface of the glass tube (203) in a circular ring shape. A clamping block (7) is clamped on the inner side wall of the installation base three (6). A brush (8) is embedded on the inner side wall of the clamping block (7).

2. The wet desulfurization tower bottom external PH detection device according to claim 1, wherein: An installation base two (5) is fixedly arranged on the side wall of the tower body (1) close to the installation base one (3). The external dimensions of the installation base two (5) are adapted to the external dimensions of the installation base one (3). A notch one (12) is opened in the middle of the installation base two (5). The notch one (12) penetrates through the side wall of the tower body (1) for the installation base three (6) to be inserted.

3. The wet desulfurization tower bottom external PH detection device according to claim 2, characterized in that: Hole slots one (11) are opened at the four corner positions of the installation base one (3). Hole slots two (14) are opened at the four corner positions of the installation base two (5). The internal dimensions of the hole slots two (14) and the hole slots one (11) are the same for bolt connection.

4. The wet desulfurization tower bottom external PH detection device according to claim 3, characterized in that: A convex block (10) is fixedly arranged on the side wall of the installation base one (3) close to the terminal block (202). A notch two (13) is opened on the surface of the installation base two (5) for the convex block (10) to be inserted. The internal dimensions of the notch two (13) are adapted to the external dimensions of the convex block (10).

5. The wet desulfurization tower bottom external PH detection device according to claim 4, characterized in that: Two limiting rods (9) are fixedly arranged on the side wall of the installation base one (3) close to the convex block (10). Both of the two limiting rods (9) are cylindrical.

6. The wet desulfurization tower bottom external PH detection device according to claim 1, characterized in that: Two sliding slots (16) are symmetrically opened on the side wall of the installation base three (6) for the limiting rods (9) to be inserted. The external dimensions of the limiting rods (9) are adapted to the internal dimensions of the sliding slots (16).

7. The external PH detection device for the wet desulfurization tower bottom according to claim 4, characterized in that: A notch three (15) is opened on the inner side wall of the installation base three (6) close to the clamping block (7). The clamping block (7) is made of rubber. The external dimensions of the clamping block (7) are adapted to the internal dimensions of the notch three (15).