CN113188835A - System for detecting PH value of thermal power plant - Google Patents
System for detecting PH value of thermal power plant Download PDFInfo
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- CN113188835A CN113188835A CN202110431296.2A CN202110431296A CN113188835A CN 113188835 A CN113188835 A CN 113188835A CN 202110431296 A CN202110431296 A CN 202110431296A CN 113188835 A CN113188835 A CN 113188835A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/27—Association of two or more measuring systems or cells, each measuring a different parameter, where the measurement results may be either used independently, the systems or cells being physically associated, or combined to produce a value for a further parameter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
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Abstract
The invention discloses a system for detecting a PH value of a thermal power plant, which comprises a fixed flange, a plurality of temperature sensors and a plurality of temperature sensors, wherein the fixed flange is arranged on the side wall of a desulfurizing tower, and a pipeline of the fixed flange penetrates through the inside of the desulfurizing tower; the sampling unit comprises a sampling piece connected with the fixed flange through a flange, the sampling piece is cylindrical, and the sampling piece comprises a sampling end positioned inside the desulfurizing tower and a taking-out end positioned outside the desulfurizing tower; the sampling end is connected with a liquid inlet piece, the liquid inlet piece is provided with a liquid inlet hole, a ball groove is arranged in the liquid inlet hole, a ball core is arranged in the ball groove, and the ball core is provided with a round hole; the method can measure parameters such as density, pH value and chloride ion content of the slurry in the desulfurizing tower, and improves the accuracy of the measuring result.
Description
Technical Field
The invention relates to the field of thermal power plants, in particular to a system for detecting a PH value of a thermal power plant.
Background
In the desulfurization and denitrification process of a thermal power plant, a desulfurization tower is mainly used for desulfurizing flue gas in the gypsum board production process through desulfurization liquid, the treated flue gas is discharged outwards, after the desulfurization liquid is used for a period of time, the pH value is reduced, alkaline substances such as calcium carbonate or sodium hydroxide are usually required to be added into the desulfurization liquid so as to continue desulfurization reaction, and the pH value of the desulfurization liquid is measured by using a pH meter.
However, after the PH meter is installed on the desulfurizing tower through a pipeline, lime can be precipitated and gathered in the PH meter after a long time due to no flowing of desulfurizing liquid in the pipeline, so that the numerical value is inaccurate; often can make the pH meter malfunctioning, even damage, the feedback pH value that can not be accurate needs often to be changed, causes the waste of resource and manpower. In addition, slurry in the desulfurization tower has viscosity and corrosivity, and can cause jam and corrosion to the density measuring device and the pH value measuring device of the power plant, so that most of the online measuring devices of the density meter and the pH meter of the power plant are in a paralyzed state, and the safe operation of a desulfurization system is seriously influenced.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments, and in this section as well as in the abstract and the title of the invention of this application some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made keeping in mind the above problems occurring in the prior art and/or the problems occurring in the prior art.
Therefore, the technical problem to be solved by the invention is that after the PH meter is arranged on the desulfurizing tower through the pipeline, lime precipitates and gathers in the PH meter after a long time due to no flowing of desulfurizing liquid in the pipeline, so that the numerical value is inaccurate; often can make the pH meter malfunctioning, even damage, the feedback pH value that can not be accurate needs often to be changed, causes the waste of resource and manpower. In addition, slurry in the desulfurization tower has viscosity and corrosivity, and can cause jam and corrosion to the density measuring device and the pH value measuring device of the power plant, so that most of the online measuring devices of the density meter and the pH meter of the power plant are in a paralyzed state, and the safe operation of a desulfurization system is seriously influenced.
In order to solve the technical problems, the invention provides the following technical scheme: a system for detecting the PH value of a thermal power plant comprises a fixed flange, a first temperature sensor, a second temperature sensor, a temperature sensor and a controller, wherein the fixed flange is arranged on the side wall of a desulfurizing tower, a pipeline of the fixed flange penetrates through the desulfurizing tower; the sampling unit comprises a sampling piece connected with the fixed flange through a flange, the sampling piece is cylindrical, and the sampling piece comprises a sampling end positioned inside the desulfurizing tower and a taking-out end positioned outside the desulfurizing tower; the sampling end is connected with a liquid inlet piece, the liquid inlet piece is provided with a liquid inlet hole, a ball groove is arranged in the liquid inlet hole, a ball core is arranged in the ball groove, and the ball core is provided with a round hole.
As a preferable embodiment of the system for detecting PH in a thermal power plant according to the present invention, wherein: the ball core is connected with a rotating shaft, the axis of the rotating shaft is perpendicular to the axis of the round hole, the ball groove is provided with a rotating hole, and the rotating shaft is embedded into the rotating hole and is connected in a rotating mode.
As a preferable embodiment of the system for detecting PH in a thermal power plant according to the present invention, wherein: the liquid inlet hole is provided with a liquid inlet hole, the liquid inlet hole is provided with a liquid outlet hole, the liquid outlet hole is provided with a liquid outlet hole, a liquid outlet hole is provided in the liquid outlet hole, a liquid outlet hole is provided with a liquid outlet hole, a slide block is provided with a slide block in the liquid outlet hole, a wedge, one end is provided with a wedge, one end, a wedge is provided with a wedge, a wedge is provided with a spring between the slide block in the slide block, one end is provided with a wedge, one end between the slide block in the slide block, one end of the slide block, one end of the slide block, one end of the slide block, the slide block.
As a preferable embodiment of the system for detecting PH in a thermal power plant according to the present invention, wherein: the sliding block is connected with a shifting rod, a spiral groove is formed in the rotating shaft, a through groove is formed between the sliding groove and the rotating hole, and the shifting rod penetrates through the through groove and is embedded into the spiral groove.
As a preferable embodiment of the system for detecting PH in a thermal power plant according to the present invention, wherein: the inside moving member that is provided with of sampling piece, the moving member is the cylinder, the one end that the moving member is close to the sampling end is connected with the disc, the one side that is close to the sampling end on the disc is provided with the arch, the arch be provided with the through-hole that the disc runs through, the through-hole can be embedded in the feed liquor downthehole with the slider is contradicted, the arch with the diameter size in feed liquor hole is unanimous.
As a preferable embodiment of the system for detecting PH in a thermal power plant according to the present invention, wherein: the side surface of the taking-out end is provided with a long groove extending along the axial direction, the moving piece is provided with a moving pin, and the moving pin penetrates through the long groove.
As a preferable embodiment of the system for detecting PH in a thermal power plant according to the present invention, wherein: a rotating part is sleeved on the periphery of the taking-out end, a spiral groove is formed in the inner side face of the rotating part, the moving pin is embedded into the spiral groove, and the trend of the spiral groove is spiral; the sampling piece is provided with a limiting piece which is in contact with two ends of the rotating piece.
As a preferable embodiment of the system for detecting PH in a thermal power plant according to the present invention, wherein: a limiting boss is arranged in the sampling piece, and the disc axially slides between the limiting boss and the sampling end; and a second elastic piece is arranged between the limiting boss and the moving pin and sleeved outside the moving piece.
As a preferable embodiment of the system for detecting PH in a thermal power plant according to the present invention, wherein: a sampling tube is arranged in the moving piece, one end of the sampling tube, which is close to the disc, is provided with a flow guide hole corresponding to the through hole, the other end of the sampling tube is sealed, and a sampling port is formed in the side surface of the sampling tube.
As a preferable embodiment of the system for detecting PH in a thermal power plant according to the present invention, wherein: the sampler barrel is characterized in that a circular truncated cone is arranged on the circumferential side face of the sampler barrel, a guide groove is formed in the inner wall of the moving part, the circular truncated cone is embedded into the guide groove, the guide groove is parallel to the axial direction of the moving part, one end, far away from the circular disc, of the guide groove is connected with an annular groove, and the annular groove is formed in the inner wall of the moving part along the circumference.
The invention has the beneficial effects that: can measure the density of thick liquid in the desulfurizing tower, pH value, chlorion content isoparametric, improved the accuracy of measuring result, mainly be through the structure of sampling unit, can accomplish the sample and detect through simple operation when needing to measure, and the leakproofness is better, can not take place to reveal wait the wind.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a schematic structural diagram of a system for detecting pH in a thermal power plant according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a liquid inlet component in a system for detecting pH of a thermal power plant according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a system for detecting pH in a thermal power plant according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view illustrating a system for detecting pH in a thermal power plant according to an embodiment of the present invention;
fig. 5 is an exploded view of a system for detecting PH in a thermal power plant according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration when describing the embodiments of the present invention, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" 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.
Example 1
Referring to fig. 1 to 4, the present embodiment provides a system for detecting a PH value in a thermal power plant, including a fixing flange 100 and a sampling unit 200, wherein the fixing flange 100 is disposed on a sidewall of a desulfurization tower, and is generally welded at a height at which a person can operate the bottom of the desulfurization tower, wherein a pipeline of the fixing flange 100 penetrates through the inside of the desulfurization tower, that is, slurry inside the desulfurization tower can be discharged through a connecting pipeline of the fixing flange 100. Sampling unit 200 includes the sample 201 that passes through flange joint with mounting flange 100, be provided with the cooperation flange that is connected with mounting flange 100 on the sample 201 promptly, and seal the processing, sample 201 is the cylinder, sample 201 including being located the inside sampling end 201a of desulfurizing tower and being located the outside extraction end 201b of desulfurizing tower, be located the inside sampling end 201a of desulfurizing tower and gather the thick liquid that awaits measuring, then take out through extraction end 201b, detect.
Wherein, the sampling end 201a is connected with a liquid inlet piece 202, the liquid inlet piece 202 can control the amount of the slurry taken out from the desulfurizing tower, the liquid inlet piece 202 is provided with a liquid inlet hole 202a,
a ball groove 202b is provided in the liquid inlet 202a, a ball core 202c is provided in the ball groove 202b, and a circular hole 202d is provided in the ball core 202 c.
The ball core 202c is connected with a rotating shaft 202e, the axis of the rotating shaft 202e is perpendicular to the axis of the round hole 202d, the ball groove 202b is provided with a rotating hole 202f, and the rotating shaft 202e is embedded into the rotating hole 202f for rotating connection.
One end of the liquid inlet hole 202a close to the taking-out end 201b is provided with a sliding groove 202g along the radial direction, a sliding block 202h is arranged in the sliding groove 202g, one end of the sliding block 202h close to the circle center of the liquid inlet hole 202a is in a wedge shape, one side of the wedge shape close to the taking-out end 201b is an inclined side, and a spring 202i is arranged between the other end of the sliding block 202h and the bottom of the sliding groove 202 g.
The slider 202h is connected with a shift lever 202j, the rotating shaft 202e is provided with a spiral groove 202k, a through groove 202l is arranged between the sliding groove 202g and the rotating hole 202f, and the shift lever 202j penetrates through the through groove 202l and is embedded into the spiral groove 202 k.
It should be noted that, under the action of the spring 202i, one end of the slider 202h extends into the liquid inlet 202a, at this time, the shift lever 202j is located at a position close to the liquid inlet 202a and is embedded into one side of the spiral groove 202k close to the spherical core 202c, at this time, the axis of the circular hole 202d and the axis of the liquid inlet 202a are 90 degrees, that is, the liquid inlet 202a is not communicated, when the slider 202h and the shift lever 202j move in a direction away from the liquid inlet 202a, one end of the shift lever 202j is matched with the spiral groove 202k and moves to a position of the spiral groove 202k away from the liquid inlet 202a, at this time, the axis of the circular hole 202d is coaxial with the liquid inlet 202a, that is, at this time, the liquid inlet 202a is in a through state.
Furthermore, a moving member 203 is arranged inside the sampling member 201, the moving member 203 is cylindrical, the moving member 203 can move in the sampling member 201 along the axial direction, wherein one end of the moving member 203 close to the sampling end 201a is connected with a disc 203a, the disc 203a is in sliding connection with the inner wall of the sampling member 201, one side of the disc 203a close to the sampling end 201a is provided with a protrusion 203b, the protrusion 203b is provided with a through hole 203c which is penetrated through the disc 203a, the through hole can be embedded into the liquid inlet hole 202a to be abutted against the end part of a sliding block 202h, the sliding block 202h is moved and extended into a sliding groove 202g, the diameter of the protrusion 203b is consistent with that of the liquid inlet hole 202a, when the moving member 203 is close to the sampling end 201a, the protrusion 203b is embedded into the liquid inlet hole 202a and pushes the sliding block 202h, the sliding block 202h and the deflector rod 202j move simultaneously, the helical groove 202k of the deflector rod 202j is matched to convert the linear motion into the circumferential motion, so that the axis of the circular hole 202d is coaxial with the liquid inlet hole 202a, even the thick liquid can pass through to make the thick liquid enter into through-hole 203c through feed liquor hole 202a, then get into the inside of moving member 203, can take out and detect, can detect other parameters such as chloride ion or pH value.
After the slurry is taken out, the protrusion 203b is separated from the sliding block 202h, so that the sliding block 202h and the ball core 202c are reset, and the channel of the liquid inlet hole 202a is closed.
Furthermore, a long groove 201c extending along the axial direction is arranged on the side surface of the taking-out end 201b, a moving pin 203d is arranged on the moving member 203, and the moving pin 203d penetrates through the long groove 201c, so that the moving member 203 can be indirectly operated by operating the moving pin 203d in order to avoid directly operating the moving member 203 and prevent slurry from flowing out due to accidental contact.
Preferably, the rotating member 204 is sleeved on the outer periphery of the withdrawing end 201b, and the rotating member 204 can rotate on the withdrawing end 201b, wherein the inner side surface of the rotating member 204 is provided with a spiral groove 204a, the moving pin 203d is embedded in the spiral groove 204a, and the spiral groove 204a has a spiral shape, so that when the rotating member 204 is operated to rotate, the moving pin 203d moves in the axial direction under the action of the spiral groove 204 a.
Further, a limiting boss 201d is arranged inside the sampling piece 201, and the disc 203a slides between the limiting boss 201d and the sampling end 201a along the axial direction; the second elastic element 205 is disposed between the limiting boss 201d and the moving pin 203d, the second elastic element 205 is sleeved outside the moving element 203, and the second elastic element 205 is a pressure spring, so that when the sampling unit 200 is not operated, the disc 203a is far away from the liquid inlet element 202 under the action of the second elastic element 205, and at this time, the sampling unit is in a sealed state.
The implementation mode and principle of the embodiment are as follows: when the sample is not taken, the moving part 203 is far away from the liquid inlet part 202, and the liquid inlet part 202 is in a sealed state; when needing to take a sample, operation rotation piece 204 rotates, make removal pin 203d just along axial displacement under the effect of spiral groove 204a, and the moving direction is the direction of being close to feed liquor piece 202, then protruding 203b imbeds feed liquor hole 202a and promotes slider 202h, make ball core 202c and feed liquor hole 202a cooperation, thereby make the thick liquid enter into through-hole 203c through feed liquor hole 202a, then get into the inside of moving piece 203, can take a sample, the back is accomplished in the sample, reset rotation piece 204, feed liquor piece 202 also accomplishes the resealing that resets.
Example 2
Referring to fig. 1 to 5, a second embodiment of the present invention is based on the previous embodiment, and is different from the previous embodiment in that:
the slurry may flow out by directly taking the slurry through the moving member 203, so that the sampling tube 206 needs to be arranged in the moving member 203, and the slurry in the moving member 203 is transferred into the sampling tube 206 for sampling.
Wherein, the one end of the sampling tube 206 close to the disc 203a is provided with a flow guide hole 206a corresponding to the through hole 203c, the flow guide hole 206a is tightly attached to the through hole 203c in the sampling process, the other end of the sampling tube 206 is sealed, the side surface of the sampling tube 206 is provided with a sampling port 206b, and the opening of the sampling port 206b faces upwards.
Further, a circular truncated cone 206c is arranged on the circumferential side surface of the sampling tube 206, a guide groove 203f is formed in the inner wall of the moving member 203, the circular truncated cone 206c is embedded into the guide groove 203f, the guide groove 203f is parallel to the axial direction of the moving member 203, and when the circular truncated cone 206c moves in the circular truncated cone 206c, the sampling tube 206 cannot rotate, so that inclination is prevented.
Wherein, the end of the guide groove 203f far away from the disc 203a is connected with an annular groove 203e, and the annular groove 203e is circumferentially arranged on the inner wall of the moving piece 203. When the circular truncated cone 206c moves to the end of the circular truncated cone 206c, the circular truncated cone enters the annular groove 203e, the sampling cylinder 206 can be rotated at this time, the sampling port 206b is turned downward, and then the slurry to be taken is discharged.
It should be noted that the sampling member 201 is provided with a limiting member 201e contacting with both ends of the rotating member 204, and the limiting member 201e ensures that the rotating member 204 does not shift axially.
The implementation manner of the embodiment is as follows: when the sample is not taken, the moving part 203 is far away from the liquid inlet part 202, and the liquid inlet part 202 is in a sealed state; when sampling is needed, the rotating member 204 is operated to rotate, so that the moving pin 203d moves axially under the action of the spiral groove 204a, the moving direction is the direction close to the liquid inlet member 202, then the protrusion 203b is embedded into the liquid inlet hole 202a and pushes the ball 202c, a gap is formed between the ball 202c and the liquid inlet hole 202a, so that slurry enters the through hole 203c through the liquid inlet hole 202a and then enters the sampling cylinder 206, the rotating member 204 is reset, the liquid inlet member 202 is reset and sealed again, the sampling cylinder 206 is pulled out to the position of the circular truncated cone 206c to the annular groove 203e, and the slurry in the sampling cylinder 206 is taken out under the rotation.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A system for detecting PH value of thermal power plant is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the fixed flange (100) is arranged on the side wall of the desulfurization tower, and a pipeline of the fixed flange (100) penetrates through the interior of the desulfurization tower;
the sampling unit (200) comprises a sampling piece (201) connected with the fixed flange (100) through a flange, the sampling piece (201) is cylindrical, and the sampling piece (201) comprises a sampling end (201a) positioned inside the desulfurization tower and a taking-out end (201b) positioned outside the desulfurization tower;
sampling end (201a) is connected with feed liquor spare (202), feed liquor spare (202) are provided with feed liquor hole (202a), be provided with ball groove (202b) in feed liquor hole (202a), be provided with ball core (202c) in ball groove (202b), ball core (202c) are provided with round hole (202 d).
2. The system for PH detection in a thermal power plant as claimed in claim 1, wherein: the ball core (202c) is connected with a rotating shaft (202e), the axis of the rotating shaft (202e) is perpendicular to the axis of the round hole (202d), the ball groove (202b) is provided with a rotating hole (202f), and the rotating shaft (202e) is embedded into the rotating hole (202f) to be rotatably connected.
3. The system for PH detection in a thermal power plant as claimed in claim 2, wherein: one end of the liquid inlet hole (202a) close to the taking-out end (201b) is provided with a sliding groove (202g) along the radial direction, a sliding block (202h) is arranged in the sliding groove (202g), one end of the sliding block (202h) close to the circle center of the liquid inlet hole (202a) is in a wedge shape, one side of the wedge shape close to the taking-out end (201b) is an inclined edge, and a spring (202i) is arranged between the other end of the sliding block (202h) and the bottom of the sliding groove (202 g).
4. The system for pH sensing of a thermal power plant as claimed in claim 3, wherein: the sliding block (202h) is connected with a shifting rod (202j), a spiral groove (202k) is formed in the rotating shaft (202e), a through groove (202l) is formed between the sliding groove (202g) and the rotating hole (202f), and the shifting rod (202j) penetrates through the through groove (202l) and is embedded into the spiral groove (202 k).
5. The system for pH value detection in thermal power plant according to claim 3 or 4, characterized in that: the inside moving member (203) that is provided with of sampling piece (201), moving member (203) are the cylinder, the one end that moving member (203) is close to sampling end (201a) is connected with disc (203a), the one side that is close to sampling end (201a) on disc (203a) is provided with protruding (203b), protruding (203b) be provided with through-hole (203c) that disc (203a) run through, the through-hole can be embedded in feed liquor hole (202a) with slider (202h) are contradicted, protruding (203b) with the diameter size in feed liquor hole (202a) is unanimous.
6. The system for pH sensing of a thermal power plant as claimed in claim 5, wherein: an elongated slot (201c) extending along the axial direction is arranged on the side surface of the taking-out end (201b), a moving pin (203d) is arranged on the moving element (203), and the moving pin (203d) penetrates through the elongated slot (201 c).
7. The system for PH detection in a thermal power plant as claimed in claim 6, wherein: a rotating piece (204) is sleeved on the periphery of the taking-out end (201b), a spiral groove (204a) is formed in the inner side face of the rotating piece (204), the moving pin (203d) is embedded into the spiral groove (204a), and the trend of the spiral groove (204a) is spiral;
the sampling piece (201) is provided with limiting pieces (201e) which are in contact with two ends of the rotating piece (204).
8. The system for PH detection in a thermal power plant as claimed in claim 7, wherein: a limiting boss (201d) is arranged inside the sampling piece (201), and the disc (203a) slides between the limiting boss (201d) and the sampling end (201a) along the axial direction;
and a second elastic piece (205) is arranged between the limiting boss (201d) and the moving pin (203d), and the second elastic piece (205) is sleeved outside the moving piece (203).
9. The system for PH detection in a thermal power plant as claimed in claim 8, wherein: a sampling tube (206) is arranged in the moving member (203), one end of the sampling tube (206) close to the disc (203a) is provided with a flow guide hole (206a) corresponding to the through hole (203c), the other end of the sampling tube (206) is sealed, and a sampling port (206b) is formed in the side face of the sampling tube (206).
10. The system for PH detection in a thermal power plant as claimed in claim 9, wherein: the sampler barrel (206) circumference side is provided with round platform (206c), moving member (203) inner wall is provided with guide way (203f), round platform (206c) imbeds in guide way (203f), guide way (203f) with the axial direction of moving member (203) is parallel, guide way (203f) are kept away from the one end of disc (203a) is connected with ring channel (203e), ring channel (203e) set up along the circumference at moving member (203) inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110431296.2A CN113188835B (en) | 2021-04-21 | 2021-04-21 | System for detecting PH value of thermal power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110431296.2A CN113188835B (en) | 2021-04-21 | 2021-04-21 | System for detecting PH value of thermal power plant |
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| CN113188835A true CN113188835A (en) | 2021-07-30 |
| CN113188835B CN113188835B (en) | 2022-10-11 |
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| CN202110431296.2A Active CN113188835B (en) | 2021-04-21 | 2021-04-21 | System for detecting PH value of thermal power plant |
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Cited By (2)
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| CN114607857A (en) * | 2022-01-28 | 2022-06-10 | 华能国际电力股份有限公司德州电厂 | Environment-friendly energy-saving desulfurization system |
| CN114934572A (en) * | 2022-04-29 | 2022-08-23 | 华能伊敏煤电有限责任公司 | Power plant's desulfurizing tower waste water waste fitting discharging |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607857A (en) * | 2022-01-28 | 2022-06-10 | 华能国际电力股份有限公司德州电厂 | Environment-friendly energy-saving desulfurization system |
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| CN114934572A (en) * | 2022-04-29 | 2022-08-23 | 华能伊敏煤电有限责任公司 | Power plant's desulfurizing tower waste water waste fitting discharging |
| CN114934572B (en) * | 2022-04-29 | 2023-05-12 | 华能伊敏煤电有限责任公司 | Power plant desulfurizing tower waste water waste fitting discharging |
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