CN116124984A - Automatic alkalinity titration equipment and titration process - Google Patents

Abstract

The invention discloses automatic alkalinity titration equipment and a titration process, which comprise a culture water tank, wherein one end of the culture water tank is connected with a liquid conducting pipe in a penetrating way, an opening and closing valve body is arranged in a penetrating way at the communicating position of the liquid conducting pipe and the culture water tank, one end of the liquid conducting pipe is fixedly provided with a liquid discharging groove through welding, the other end of the liquid conducting pipe is connected with a connecting sleeve shell through welding in a penetrating way, the top of the connecting sleeve shell is connected with a reaction bin through welding in a penetrating way, a capacitive water level detection sensor is arranged in the reaction bin, a PH probe is fixedly arranged on the inner wall of the reaction bin, a liquid drop nozzle is fixedly arranged at the top of the reaction bin through welding, a peristaltic pump II is connected at the top of the liquid drop nozzle in a penetrating way, a through hole is formed in the top of the reaction bin and is vertically aligned with the liquid drop nozzle, and a peristaltic pump II is connected at the top of the liquid drop nozzle in a penetrating way.

Description

Automatic alkalinity titration equipment and titration process

Technical Field

The invention belongs to the technical field of aquaculture, and particularly relates to automatic alkalinity titration equipment and a titration process.

Background

The alkalinity is about 3dkh of carbonic acid, and the practicability is poor. This phenomenon is a problem to be solved by those skilled in the art. The higher the index alkalinity of the concentration of hydrogen ions and carbonate ions, the higher the concentration of ions, and the alkalinity can play a role in balancing the PH value of the water body. When external impact is received, or acidic substances generated by slow metabolism in organisms are discharged into water, the alkalinity in the water can be consumed, so that the PH is stabilized between 8.0 and 8.3. The stability of alkalinity is also a necessary condition for coral growth, and the value of alkalinity in natural sea area is 8.

In the existing aquaculture and household feeding of marine fish coral, the current alkalinity test needs to be performed manually, but compared with the method for consuming frequent ions in a small water body, the method is at least carried out once a day in the morning and evening, so that the cost of the aquaculture, the household feeding test and the time cost are greatly increased. The alkalinity titration apparatus was developed.

Disclosure of Invention

The invention aims at solving the problems in the background technology by aiming at the existing automatic alkalinity titration equipment and titration technology of a material collecting device.

In order to solve the technical problems, the invention provides the following technical scheme: automatic alkalinity titration equipment and titration technique, including breeding the basin, the one end of breeding the basin is link up and is connected with the liquid conduction pipe, the liquid conduction pipe link up with the hookup location of breeding the basin and be provided with the open and close valve body, the one end of liquid conduction pipe is through welded fastening having the liquid drain groove, the other end of liquid conduction pipe is through welded through connection has the connection cover shell, the top of connection cover shell is through welded through connection has the reaction storehouse.

The invention further describes that a capacitive water level detection sensor is arranged in the reaction bin, a PH probe is fixedly arranged on the inner wall of the reaction bin, a liquid drop nozzle is fixedly arranged at the top of the reaction bin through welding, a peristaltic pump II is connected with the top end of the liquid drop nozzle in a penetrating way, a through hole is formed in the top of the reaction bin and is vertically aligned with the liquid drop nozzle, and a peristaltic pump II is connected with the top end of the liquid drop nozzle in a penetrating way.

The invention further discloses that the top of the reaction bin is provided with the correlation photoelectric sensor, and the correlation photoelectric sensor and the liquid drop nozzle are positioned in the same vertical plane.

According to the invention, the bottom of the liquid conduit is fixedly provided with the liquid draining groove through welding, the water body measuring assembly comprises the sealing block, the detection shell is fixed in the liquid draining groove through bolts, the top of the detection shell is uniformly provided with screw holes, the sealing block, the water quality detection sensor and the water flow switch are respectively connected in the screw holes through threads, the top of the water flow switch is connected with the overflow valve, one end of the overflow valve is connected with the overflow pipe, the overflow pipe penetrates through the liquid draining groove and is communicated with the reaction bin, one side of the detection shell is communicated with the branch water inlet pipe near the bottom, and the branch water inlet pipe is communicated with one side of the liquid conduit.

According to the invention, a turbid liquid flow tube is arranged in the liquid flow tube, one end of the turbid liquid flow tube is connected with a conical mixing tube I, a flat surface at one end of the conical mixing tube I is provided with a filter screen, one end of the connecting sleeve shell is provided with a mounting table surface, the inner wall of the mounting table surface is contacted with the inclined surface of the conical mixing tube I, the inner wall of the mounting table surface is provided with an internal thread, the inner wall of the mounting table surface is movably connected with a thread fixing sleeve through the thread, and the thread fixing sleeve is contacted with one side of the conical mixing tube I.

According to the invention, the other end of the turbid liquid flow tube is connected with the conical mixing tube II through threads, the flat surface of the conical mixing tube II is in contact with the inner wall of the liquid flow tube, the flat surface is provided with the sealing ring, the top of the turbid liquid flow tube is provided with the first screw hole, the inside of the screw hole is movably connected with the infrared sensor through threads, the top of the liquid flow tube is provided with the second screw hole, the inside of the second screw hole is connected with the maintenance screwing plate through threads, and the maintenance screwing plate is positioned at the top of the infrared sensor.

According to the invention, one end of the liquid conduction pipe is fixed with the installation shell through the bolt, the power motor is installed in the installation shell, the output shaft of the power motor is connected with the peristaltic pump I through the coupler, and the outer diameter of the peristaltic pump I is slightly smaller than the inner diameter of the liquid conduction pipe.

An automatic alkalinity titration process is characterized in that: the method comprises the following specific steps:

s0, starting a peristaltic pump I in the forward direction, and evacuating the solution after the last test;

s1, reversely starting a peristaltic pump I to suck water into a reaction bin of the equipment from a fish tank or a culture water tank;

s2, sensing the liquid level by using a capacitive water level detection sensor until the liquid level reaches a specified liquid level;

s3, starting a peristaltic pump II in the forward direction, injecting hydrochloric acid with the concentration of 0.01mol/l, and simultaneously starting a PH probe to monitor the PH value of the solution;

s4, recording the number of drops of the reagent when the experiment reaches ph from about 8.0 to 4.3, ensuring the same quality of each drop under the condition that the inner diameter of the nozzle is static as well, and according to the average quality and density of the drops, recording the number of drops of the reagent according to 1g/cm ³ Multiplying the sum of the liquid drops by the indication value of the correlation photoelectric sensor;

s5, according to the concentration and the volume of the hydrochloric acid, the total alkalinity of the current liquid to be detected can be converted, and the total alkalinity is a value proportional to the total number of liquid drops.

Compared with the prior art, the invention has the following beneficial effects: according to the invention, a mode of directly measuring the quantity of liquid drops is adopted, compared with the mode of measuring the volume of liquid, titration errors can be avoided, measurement is convenient, alkalinity test can be conveniently carried out in aquaculture, the threshold of aquaculture is reduced, automatic control and automatic reading are simple to use, and accidental risks are avoided by using various sensors.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:

FIG. 1 is a schematic diagram of the overall principle of the present invention;

FIG. 2 is a schematic illustration of the reaction chamber and connecting sleeve assembly of the present invention;

FIG. 3 is a schematic view of a peristaltic pump of the present invention in a mounting configuration;

FIG. 4 is a schematic view of the installation of a liquid conduit and drain tank of the present invention;

FIG. 5 is a schematic view of a second embodiment of the conical mixing tube of the present invention;

FIG. 6 is a schematic view of the structure of the detection housing of the present invention;

FIG. 7 is a schematic view of the structure of embodiment 1 of the present invention;

in the figure: 1. a cultivation water tank; 2. a reaction bin; 3. a liquid conduit; 4. connecting the casings; 5. a liquid discharge tank; 6. a turbid liquid flow tube; 7. a water body measurement assembly; 32. a mounting shell; 33. a power motor; 34. peristaltic pump I; 41. a pressure release valve; 42. an opening/closing valve body; 44. installing a table top; 45. maintaining the screwing plate; 61. a conical mixing tube I; 611. a filter screen; 62. conical mixing tube II; 63. an infrared sensor; 64. a thread fixing sleeve; 71. a sealing block; 72. a water quality detection sensor; 73. an overflow valve; 74. an overflow pipe; 75. a branch water inlet pipe; 76. a water flow switch; 77. a detection housing; 91. correlation photoelectric sensor; 92. a capacitive water level detection sensor; 93. a droplet ejection nozzle; 94. a PH probe; 95. peristaltic pump II.

Detailed Description

The technical scheme of the present invention is further described in non-limiting detail below with reference to the preferred embodiments and the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 7, the present invention provides the following technical solutions: the automatic alkalinity titration equipment and the titration process comprise a culture water tank 1, wherein one end of the culture water tank 1 is connected with a liquid conducting pipe 3 in a penetrating way, an opening and closing valve body 42 is arranged in a penetrating way at the communicating position of the liquid conducting pipe 3 and the culture water tank 1, a liquid discharging groove 5 is fixedly arranged at one end of the liquid conducting pipe 3 through welding, a connecting sleeve shell 4 is connected at the other end of the liquid conducting pipe 3 through welding in a penetrating way, and a reaction bin 2 is connected at the top of the connecting sleeve shell 4 through welding in a penetrating way;

a capacitive water level detection sensor 92 is arranged in the reaction bin 2, a PH probe 94 is fixedly arranged on the inner wall of the reaction bin 2, a liquid drop nozzle 93 is fixedly arranged at the top of the reaction bin 2 through welding, a peristaltic pump II 95 is connected with the top of the liquid drop nozzle 93 in a penetrating way, a through hole is formed in the top of the reaction bin 2 and is vertically aligned with the liquid drop nozzle 93, and a peristaltic pump II 95 is connected with the top of the liquid drop nozzle 93 in a penetrating way;

the water is sucked into the equipment reaction bin from the fish tank or the culture water tank by a pump in the test flow, the quantity of sucked water and the length of the equipment hose connected with the water source hose are both influencing factors of water quantity, so that the capacitance type water level detection is added outside the reaction bin, the water level condition can be perceived without contacting the liquid to be detected, the capacitance type water level detection sensor thoroughly solves the defect of a PP float switch, because the liquid to be detected is that the sea water has a lot of electrolytes, if the crystallization of sea water elements is used for a long time, the PP float can be blocked, and the detection is failed;

the top of the reaction bin 2 is provided with an opposite-emission type photoelectric sensor 91, and the opposite-emission type photoelectric sensor 91 and the liquid drop nozzle 93 are positioned in the same vertical plane;

after the liquid to be measured is filled, the process of using 0.01mol/L hydrochloric acid to perform reaction filling is changed, the filling amount is changed from milliliter units to one infrared correlation sensor per drop in the traditional manual point position method alkalinity titration experiment, so that each drop can be recorded and counted, and the titration amount error caused by peristaltic pump aging is thoroughly solved;

the bottom of the liquid conduit 3 is fixedly provided with a liquid discharge groove 5 through welding, the water body measurement assembly 7 comprises a sealing block 71, the inside of the liquid discharge groove 5 is fixedly provided with a detection shell 77 through bolts, the top of the detection shell 77 is uniformly provided with screw holes, the screw holes are internally respectively connected with the sealing block 71, a water quality detection sensor 72 and a water flow switch 76 through threads, the top of the water flow switch 76 is connected with an overflow valve 73, one end of the overflow valve 73 is connected with an overflow pipe 74, the overflow pipe 74 passes through the liquid discharge groove 5 and is communicated with the reaction bin 2, one side of the detection shell 77 is communicated with a branch water inlet pipe 75 near the bottom, and the branch water inlet pipe 75 is communicated with one side of the liquid conduit 3;

the inside of the liquid conduit 3 is provided with a turbid liquid flow pipe 6, one end of the turbid liquid flow pipe 6 is connected with a conical mixing pipe I61, a flat surface at one end of the conical mixing pipe I61 is provided with a filter screen 611, one end of the connecting sleeve shell 4 is provided with a mounting table surface 44, the inner wall of the mounting table surface 44 is contacted with the inclined surface of the conical mixing pipe I61, the inner wall of the mounting table surface 44 is provided with an internal thread, the inner wall of the mounting table surface 44 is movably connected with a thread fixing sleeve 64 through threads, and the thread fixing sleeve 64 is contacted with one side of the conical mixing pipe I61;

the solution mixing part uses a conical mixing pipe with a conical hole at the bottom and a 61-feature reaction bin, so that a liquid inlet and outlet pipeline is simpler, the existing stirring mode of gas mixing at a patent point is magnetic stirring, a bottom motor drives a stirrer with a magnet to mix in solution, the method is not suitable for small equipment, and the whole equipment is too complicated, and a magnetic field close to a PH probe also can interfere monitoring data;

the other end of the turbid liquid runner pipe 6 is connected with a conical mixing pipe II 62 through threads, the flat surface of the conical mixing pipe II 62 is in contact with the inner wall of the liquid runner pipe 3, a sealing ring is arranged on the flat surface, a first screw hole is formed in the top of the turbid liquid runner pipe 6, an infrared sensor 63 is movably connected in the screw hole through threads, a second screw hole is formed in the top of the liquid runner pipe 3, a maintenance screwing plate 45 is connected in the second screw hole through threads, and the maintenance screwing plate 45 is positioned at the top of the infrared sensor 63;

one end of the liquid conduit 3 is fixed with a mounting shell 32 through a bolt, a power motor 33 is mounted in the mounting shell 32, an output shaft of the power motor 33 is connected with a peristaltic pump I34 through a coupler, and the outer diameter of the peristaltic pump I34 is slightly smaller than the inner diameter of the liquid conduit 3;

an automatic alkalinity titration process comprises the following specific steps:

s0, starting the peristaltic pump I34 positively, closing the on-off valve body 42, and emptying the solution after the last test;

s1, reversely starting a peristaltic pump I34, opening an opening and closing valve body 42, and sucking water into the equipment reaction bin 2 from the fish tank or the culture water tank;

s2, sensing the liquid level by using a capacitive water level detection sensor 92 until the liquid level reaches a specified liquid level;

s3, starting the peristaltic pump II 95 positively, injecting hydrochloric acid with the concentration of 0.01mol/l and simultaneously starting the PH probe 94 to monitor the PH value of the solution;

s4, recording the number of drops of the reagent when the experiment reaches ph from about 8.0 to 4.3, ensuring the same quality of each drop under the condition that the inner diameter of the nozzle is static as well, and according to the average quality and density of the drops, recording the number of drops of the reagent according to 1g/cm ³ Multiplying the sum of the liquid drops by the indication value of the correlation photoelectric sensor;

s5, according to the concentration and the volume of the hydrochloric acid, the total alkalinity of the current liquid to be detected can be converted, and the total alkalinity is a value proportional to the total number of liquid drops.

The liquid discharge tank 5 is used for placing the internal water body measuring assembly 7 to be free from damage, and the box cover 51 can be opened when the internal elements need to be replaced;

when the water flow slowly rises to the branch water inlet pipe 75 in the connecting sleeve shell 4, the water flow flows into the detecting shell 77 until the whole detecting shell 77 is immersed slowly, then the water flow continues to rise until the water flow switch 76 is turned on, the water quality detecting sensor 72 acts and starts to detect the pH value, the content of dissolved organic matters and other values, and when the water flow switch 76 is used for ensuring that the detection starts, the air in the detecting shell 77 is emptied, so that the detection accuracy is improved;

when the water flow passes through the first conical mixing pipe 61 from left to right, the water flow is filtered by the filter screen 611 and enters the branch water inlet pipe 75, and when the liquid discharge starts, the water flow flows from the outside to the inside of the filter screen 611, the filter screen is backwashed, impurities are prevented from depositing on the filter screen, and the threaded fixing sleeve 64 is used for fixing the position of the turbid liquid flow pipe 6;

when detecting the turbidity of water flow, opening the on-off valve body 42, enabling the liquid in the culture water tank 1 to flow into the conical mixing pipe II 62 and flow into the turbid liquid flow pipe 6, and directly flowing downwards into the liquid flow pipe 3, wherein the infrared sensor 63 is used for sensing the turbidity of water flow and transmitting signals to an external infrared analyzer;

when the power motor 33 operates, the output shaft drives the peristaltic pump I34 to rotate, the peristaltic pump I pumps the liquid in the liquid conduit 3 to the left to the position of the one-way valve 31, and the one-way valve 31 prevents the liquid in the culture water tank 1 from flowing backwards on one hand and enables water to be pumped out on the other hand;

example 1:

the liquid conduction pipe 3 is further provided with a pressure display assembly 43, the pressure display assembly 43 comprises a small pipe 431, an elastic sheet 432, a spring 433, an adjusting screw 434, a sliding frame 435 and a pressure gauge 436, the small pipe 431 is connected to the top of the connection sleeve shell 4 in a penetrating manner, the elastic sheet 432 is arranged in the small pipe 431, a screw hole is formed in the top of the small pipe 431, the adjusting screw 434 is connected to the screw hole through threads, the bottom of the adjusting screw 434 is connected with the spring 433, one end of the spring 433 is in contact with the elastic sheet 432, sliding grooves 4311 are correspondingly formed in two sides of the small pipe 431, the inner wall of the sliding groove 4311 is in sliding connection with the sliding frame 435, the pressure gauge 436 is arranged at the top of the small pipe 431, a contact of the pressure gauge 436 is in contact with the sliding frame 435, water flows to the small pipe 431 and deforms the elastic sheet 432, the sliding frame 435 slides upwards in the sliding groove 4311, the spring 433 deforms, and the contact of the pressure gauge 436 is pushed upwards by the sliding frame 435, and the indication number of the pressure gauge 436 is changed and displayed;

example 2: the output end of the water flow switch 76 is electrically connected to the single chip microcomputer, and the output end of the single chip microcomputer is electrically connected with the power motor 33 and the water quality detection sensor 72, when turbidity detection is started, the operation button is pressed to enable the on-off valve body 42 to work, when normal water quality detection is started, the left end and the right end of the electric on-off valve body 42 are enabled to be conducted, when the water flow switch 76 acts, an electric signal is transmitted to the single chip microcomputer, the single chip microcomputer controls the power motor 33 to operate, and when liquid discharge is completed, the operation button is pressed to enable the power motor 33 to stop rotating, and the on-off valve body 42 is enabled to be in a closed state.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Finally, it should be pointed out that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting. Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be equivalently replaced, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. Automatic alkalinity titration apparatus, including breed basin (1), its characterized in that: the one end of breed basin (1) is link up and is connected with liquid conduit (3), the intercommunication position of liquid conduit (3) and breed basin (1) is link up and is provided with opening and closing valve body (42), the one end of liquid conduit (3) is through welded fastening has liquid drain groove (5), the other end of liquid conduit (3) is through welded through connection has connection cover shell (4), the top of connection cover shell (4) is through welded through connection has reaction warehouse (2).

2. The automatic alkalinity titration apparatus of claim 1, wherein: the inside of reaction storehouse (2) is provided with capacitanc water level detection sensor (92), the inner wall fixed mounting of reaction storehouse (2) has PH probe (94), the top of reaction storehouse (2) is provided with liquid drop nozzle (93) through welded fastening, the top through-connection of liquid drop nozzle (93) has peristaltic pump two (95), the through-hole has been seted up at the top of reaction storehouse (2), and the through-hole aligns with liquid drop nozzle (93) perpendicularly, the top through-connection of liquid drop nozzle (93) has peristaltic pump two (95).

3. The automatic alkalinity titration apparatus of claim 2, wherein: the top of the reaction bin (2) is provided with a correlation photoelectric sensor (91), and the correlation photoelectric sensor (91) and the liquid drop nozzle (93) are positioned in the same vertical plane.

4. The automatic alkalinity titration apparatus of claim 3, wherein: the bottom of liquid conducting pipe (3) is through welded fastening having liquid discharge groove (5), water body measurement assembly (7) are including sealing block (71), the inside of liquid discharge groove (5) is through bolt fastening having detection casing (77), screw has evenly been seted up at the top of detection casing (77), and has sealing block (71), water quality detection sensor (72) and rivers switch (76) through threaded connection respectively in the screw, the top of rivers switch (76) is connected with overflow valve (73), the one end of overflow valve (73) is connected with overflow pipe (74), overflow pipe (74) pass liquid discharge groove (5) and link up each other with reaction bin (2), one side of detection casing (77) is close to bottom position department and link up and be connected with branch inlet tube (75), one side of branch inlet tube (75) and liquid conducting pipe (3) link up each other.

5. The automatic alkalinity titration apparatus of claim 4, wherein: the inside of liquid pipe (3) is provided with turbid liquid runner pipe (6), the one end of turbid liquid runner pipe (6) is connected with first (61) of toper hybrid tube, the flat face of the one end of first (61) of toper hybrid tube is provided with filter screen (611), install mesa (44) have been seted up to the one end of connecting sleeve shell (4), the inner wall of install mesa (44) contacts with the inclined plane of first (61) of toper hybrid tube, the internal thread has been seted up to the inner wall of install mesa (44), and its inner wall has screw thread fixed sleeve (64) through screw thread swing joint, and screw thread fixed sleeve (64) contacts with one side of first (61) of toper hybrid tube.

6. The automatic alkalinity titration apparatus of claim 5, wherein: the other end of turbid liquid runner pipe (6) has toper hybrid tube two (62) through threaded connection, the straight face of toper hybrid tube two (62) contacts with the inner wall of liquid runner pipe (3), and the straight face is provided with the sealing washer, and first screw has been seted up at the top of turbid liquid runner pipe (6), and has infrared sensor (63) through screw swing joint in the screw, the second screw has been seted up at the top of liquid runner pipe (3), and the inside of second screw has maintenance to screw board (45) through threaded connection, maintenance screw board (45) are located the top of infrared sensor (63).

7. The automatic alkalinity titration apparatus of claim 6, wherein: one end of the liquid conduit (3) is fixedly provided with a mounting shell (32) through a bolt, the inside of the mounting shell (32) is provided with a power motor (33), an output shaft of the power motor (33) is connected with a peristaltic pump I (34) through a coupler, and the outer diameter of the peristaltic pump I (34) is slightly smaller than the inner diameter of the liquid conduit (3).

8. An automatic alkalinity titration process is characterized in that: the method comprises the following specific steps:

s0, starting a peristaltic pump I (34) positively, and evacuating the solution after the last test;

s1, reversely starting a peristaltic pump I (34) to suck water into a reaction bin (2) of the equipment from a fish tank or a culture water tank;

s2, sensing the liquid level by using a capacitive water level detection sensor (92) until the liquid level reaches a specified liquid level;

s3, starting a peristaltic pump II (95) positively, injecting hydrochloric acid with the concentration of 0.01mol/l and simultaneously starting a PH probe (94) to monitor the PH value of the solution;

s4, recording the number of drops of the reagent when the experiment reaches ph from about 8.0 to 4.3, ensuring the same quality of each drop under the condition that the inner diameter of the nozzle is static as well, and according to the average quality and density of the drops, recording the number of drops of the reagent according to 1g/cm ³ Multiplying the sum of the liquid drops by the indication value of the correlation photoelectric sensor;

s5, according to the concentration and the volume of the hydrochloric acid, the total alkalinity of the current liquid to be detected can be converted, and the total alkalinity is a value proportional to the total number of liquid drops.

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