CN117110526B - Phosphoric acid titration device - Google Patents
Phosphoric acid titration device Download PDFInfo
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- CN117110526B CN117110526B CN202311378879.9A CN202311378879A CN117110526B CN 117110526 B CN117110526 B CN 117110526B CN 202311378879 A CN202311378879 A CN 202311378879A CN 117110526 B CN117110526 B CN 117110526B
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- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title claims abstract description 342
- 229910000147 aluminium phosphate Inorganic materials 0.000 title claims abstract description 171
- 238000004448 titration Methods 0.000 title claims abstract description 53
- 239000007788 liquid Substances 0.000 claims abstract description 315
- 238000003860 storage Methods 0.000 claims abstract description 222
- 238000007789 sealing Methods 0.000 claims description 82
- 238000007667 floating Methods 0.000 claims description 41
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 238000005452 bending Methods 0.000 claims description 14
- 238000001125 extrusion Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 9
- 230000009471 action Effects 0.000 abstract description 7
- 238000005086 pumping Methods 0.000 abstract description 7
- 230000005484 gravity Effects 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 10
- 239000000523 sample Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 7
- 238000005070 sampling Methods 0.000 description 7
- 239000011550 stock solution Substances 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 238000000738 capillary electrophoresis-mass spectrometry Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000256626 Pterygota <winged insects> Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model discloses a phosphoric acid titration device, which comprises a liquid storage barrel and a phosphoric acid pump communicated with the liquid storage barrel, wherein the liquid storage barrel comprises an upper liquid storage part and a lower liquid storage part which are sleeved together in a sliding manner, and further comprises a liquid pipe which is connected to the upper liquid storage part in a sliding manner, and the liquid pipe is communicated with the phosphoric acid pump; according to the phosphoric acid titration device provided by the utility model, the upper liquid storage part and the lower liquid storage part which are sleeved together in a sliding manner are used for enabling the volume in the liquid storage barrel to be in a variable process, so that when the phosphoric acid solution is reduced, the pressure in the liquid storage barrel can be kept within a certain range all the time and is not too large, the smooth pumping process of the phosphoric acid pump is ensured, the quantitative balance of phosphoric acid solution drops can be maintained, the upper liquid storage part has a downward movement tendency under the action of self gravity, namely the tendency of outwards extruding the phosphoric acid solution, the phosphoric acid pump can achieve the expected pumping effect under the condition that the rotating speed is unchanged, the burden of the phosphoric acid pump can be lightened, and the quantitative balance of the phosphoric acid solution drops is ensured.
Description
Technical Field
The utility model relates to phosphoric acid titration technology, in particular to a phosphoric acid titration device.
Background
When the flue gas emission monitoring CEMS condenser is used for removing water, certain (about 10-20mg/m < 3 >) adsorption is formed on sulfur dioxide in sample gas, and in order to inhibit the adsorption of water on sulfur dioxide, a phosphoric acid titration device is additionally arranged on the condenser to prevent the loss of sulfur dioxide in the condenser, and the device is successfully applied to some industries. The specific usage of the phosphoric acid titration device is as follows: tee joints are additionally arranged at the outlet of the sampling probe and the inlet of the sampling pipeline, then phosphoric acid solution is injected into the sample gas through a phosphoric acid titration device, adsorption of liquid water formed at the heating cold point of the sampling pipeline to sulfur dioxide is prevented, and then the condensed phosphoric acid solution is discharged through a first channel of a condenser.
If grant the bulletin number CN217156448U, grant the bulletin day 2022 and 08 month 09, the patent of name cabinet type phosphoric acid titration device, including the device main part, the inside phosphoric acid storage cavity that is provided with of device main part, phosphoric acid storage cavity inboard is provided with heating heat preservation mechanism, device main part upside rear portion is provided with the phosphoric acid pan feeding mouth, phosphoric acid pan feeding mouth outside threaded connection is inboard at dustproof screw cap, device main part downside is provided with regularly titrates the mechanism, regularly titrate the mechanism other end intercommunication and be provided with condensing mechanism, phosphoric acid storage cavity inboard upper end is provided with level sensor, device main part left side upper end is provided with the pilot lamp. According to the utility model, the peristaltic pump can be controlled to rotate at fixed time by arranging the timing titration mechanism at the lower side of the device main body, so that the adding amount and the titration rate of phosphoric acid in the titration pipeline are controlled, and the phosphoric acid can be heated and insulated by arranging the heating and insulating mechanism.
For another example, the patent of a phosphoric acid titration device for improving CEMS measurement accuracy is issued by a number CN214011158U, the issued date is 2021, 08 and 20, and the name of the phosphoric acid titration device comprises a device base, a connecting hole, a push plate, a sliding chute and a connecting rod, wherein a stand column is fixedly arranged above the device base, a connecting piece is arranged in the middle of the stand column, a connecting plate is arranged on the left side of the connecting piece, a rubber ball is fixedly arranged on the surface of the connecting plate, a dropper is movably arranged inside the rubber ball, the sleeve is arranged on the side edge of the dropper, the connecting hole is arranged on the right side of the sleeve and is mutually arranged with the dropper, an air hole is arranged above the sleeve, a push plate is movably arranged inside the sleeve, the left side of the push plate is mutually arranged with a reset spring, the other end of the reset spring is arranged on the left side inside the sleeve, and the left side of the push plate is mutually arranged with the connecting rod. This improve phosphoric acid titration device of CEMS measurement accuracy can realize through the sleeve that the inside and outside atmospheric pressure of burette reaches the equilibrium to prevent that the whereabouts from influencing the reaction, can finely tune the piston simultaneously, and then the titration rate of control material.
In the prior art, the phosphoric acid solution stored in the liquid storage barrel is pumped out through the phosphoric acid pump and is injected into the sample gas, wherein in order to prevent the phosphoric acid solution from volatilizing to pollute the working environment and also prevent dust and winged insects from entering the phosphoric acid solution, the liquid storage barrel needs to be sealed, however, in the sealed liquid storage barrel, the pressure of the phosphoric acid solution is gradually reduced in the liquid storage barrel so as to form vacuum, and further the phosphoric acid pump cannot achieve the expected pumping effect under the condition of unchanged rotating speed, so that the quantitative imbalance of phosphoric acid solution drops is caused.
Disclosure of Invention
The object of the present utility model is to provide a phosphoric acid titration device to solve the above-mentioned drawbacks of the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
the phosphoric acid titration device comprises a liquid storage barrel and a phosphoric acid pump communicated with the liquid storage barrel, wherein the liquid storage barrel comprises an upper liquid storage part and a lower liquid storage part which are sleeved together in a sliding manner, and further comprises a liquid pipe which is connected to the upper liquid storage part in a sliding manner, and the liquid pipe is communicated with the phosphoric acid pump.
The phosphoric acid titration device further comprises a phosphoric acid pipe tee joint, wherein the phosphoric acid pipe tee joint is communicated with the phosphoric acid pump and used for changing the flow direction of a phosphoric acid solution.
In the phosphoric acid titration device, the heating equipment is arranged at the bottom of the lower liquid storage part.
According to the phosphoric acid titration device, the sliding sealing part is fixedly arranged at the top of the upper liquid storage part, and the sliding sealing part is sleeved on the liquid pipe.
According to the phosphoric acid titration device, the bottom of the liquid pipe extends to the lower liquid storage part and is fixedly connected to the bottom wall of the lower liquid storage part, and the liquid inlet is formed in one side, close to the bottom wall of the lower liquid storage part, of the liquid pipe.
According to the phosphoric acid titration device, the liquid inlet is formed in the upper end of the upper liquid storage portion, the end cover is clamped at the upper end of the upper liquid storage portion, and the end cover covers the liquid inlet to seal the liquid inlet.
According to the phosphoric acid titration device, the annular balancing weight is pressed at the upper end of the upper liquid storage part and is used for downwards extruding the upper liquid storage part.
According to the phosphoric acid titration device, the upper end of the lower liquid storage part is fixedly provided with the limiting strip, the limiting strip is attached to the outer wall of the upper liquid storage part, and the limiting strip is provided with the vent hole.
According to the phosphoric acid titration device, the floating plate is sleeved on the liquid pipe in a sliding mode, and the compression spring is further connected between the floating plate and the top wall of the upper liquid storage part.
According to the phosphoric acid titration device, the compression spring can push the floating plate to move to be separated from the upper liquid storage part in a natural state.
In the technical scheme, the volume in the liquid storage barrel is in a variable process through the upper liquid storage part and the lower liquid storage part which are sleeved together in a sliding manner, so that when the phosphoric acid solution is reduced, the pressure in the liquid storage barrel can be kept within a certain range all the time and is not excessively large, the pumping process of the phosphoric acid pump can be ensured to be smoothly carried out, quantitative balance of the phosphoric acid solution drops can also be maintained, and the upper liquid storage part has a downward movement trend under the action of self gravity, namely a trend of outwards extruding the phosphoric acid solution, so that the phosphoric acid pump can achieve the expected pumping effect under the condition of unchanged rotating speed, the burden of the phosphoric acid pump can be lightened, and the quantitative maintenance of the phosphoric acid solution drops in an balanced state can be ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a schematic perspective view of the whole phosphoric acid titration apparatus according to an embodiment of the present utility model.
Fig. 2 is a cross-sectional view of a liquid storage tank of a phosphoric acid titration apparatus according to an embodiment of the present utility model.
Fig. 3 is a cross-sectional view of a liquid storage tank of a phosphoric acid titration apparatus in accordance with another embodiment of the present utility model.
Fig. 4 is a cross-sectional view of an upper reservoir provided in accordance with yet another embodiment of the present utility model.
Fig. 5 is an enlarged view of a portion at X of fig. 4 in accordance with the present utility model.
Fig. 6 is an enlarged view of a portion of the utility model at Y of fig. 4.
Fig. 7 is a cross-sectional view of an upper reservoir provided in accordance with another embodiment of the present utility model.
Fig. 8 is a schematic structural diagram of different states of a sliding shaft and a touch panel according to an embodiment of the present utility model.
Reference numerals illustrate:
1. a liquid storage barrel; 11. an upper liquid storage part; 111. a liquid inlet; 112. an end cap; 113. an annular balancing weight; 12. a lower liquid storage part; 121. a limit bar; 122. a vent hole; 13. a liquid pipe; 131. a liquid inlet hole; 14. a phosphate pipe tee joint; 15. a heating device; 16. a sliding seal portion; 17. a floating plate; 18. a compression spring; 19. a sliding shaft; 191. a touch liquid plate; 192. a through port; 193. a connecting spring; 2. a phosphoric acid pump; 31. a mounting bar; 32. a first liquid chamber; 33. a first sealing part; 34. a return spring; 35. a second liquid chamber; 36. a second sealing part; 361. a sliding groove; 362. a connection part; 363. a trapezoid limiting block; 364. a compression spring; 365. sealing the column body; 37. a table extrusion; 38. a switching unit; 381. a switching lever; 382. installing a spring; 383. a horizontal end; 384. bending the end; 385. a driving part.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1-8, the phosphoric acid titration device provided by the embodiment of the utility model comprises a liquid storage barrel 1 and a phosphoric acid pump 2 communicated with the liquid storage barrel 1, wherein the liquid storage barrel 1 comprises an upper liquid storage part 11 and a lower liquid storage part 12 which are sleeved together in a sliding manner, and further comprises a liquid pipe 13 which is connected to the upper liquid storage part 11 in a sliding manner, and the liquid pipe 13 is communicated with the phosphoric acid pump 2.
In this embodiment, the liquid storage barrel 1 is used for containing phosphoric acid solution, and the liquid storage barrel 1 is a sealed barrel body, and the interior of the liquid storage barrel 1 is connected with the outside only through a liquid pipe 13, in this embodiment of the present utility model, the concentration of the phosphoric acid solution in the liquid storage barrel 1 is not less than 5%; the upper liquid storage part 11 and the lower liquid storage part 12 are of a barreled structure with openings, can be of a square barreled structure and can also be of a round barreled structure, the upper liquid storage part 11 and the lower liquid storage part 12 are sleeved together in an opening opposite mode, the size of the lower liquid storage part 12 is larger than that of the upper liquid storage part 11 so as to be sleeved together in a sliding mode, or conversely, the upper liquid storage part 11 and the lower liquid storage part 12 can also be sleeved together, a dynamic sealing mechanism is arranged at the sleeved part, a cavity formed between the upper liquid storage part 11 and the lower liquid storage part 12 is a liquid storage cavity, and in general cases, the lower liquid storage part 12 can be fixed in a phosphoric acid titration box, and various electric control units are further arranged in the phosphoric acid titration box so as to control a phosphoric acid titration process; the liquid pipe 13 is of a tubular structure with two ends communicated and is made of hard materials (it should be noted that, in the embodiment of the utility model, the parts in the liquid storage barrel 1 are all made of acid-proof and corrosion-proof materials); the phosphoric acid pump 2 is in the prior art, and will not be described in detail herein, so the phosphoric acid pump 2 is preferably a pump body with a rotation speed of 0-100r/min, and in the power-on operation state, the phosphoric acid pump 2 pumps the phosphoric acid solution configured in the barrel into the sampling pipeline, and the rotation speed of the phosphoric acid pump 2 can be adjusted appropriately through the working condition of the site.
Before the main operation of the phosphoric acid titration device, preparation work is needed, wherein the first step is to fix the box-shaped phosphoric acid titration device on a chimney platform; step two, switching the AC220V power supply into a main switch of the equipment; thirdly, adding the phosphoric acid solution with the concentration of not less than 5% into the liquid storage barrel 1; fourthly, connecting a three-way joint in the phosphoric acid titration device into a sampling pipeline; and fifthly, after the installation and wiring are finished, checking the phosphoric acid titration device, opening a power supply main switch after checking, and adjusting the rotating speed of the phosphoric acid pump 2 according to the pipeline and the required rotating speed.
After preparation, pumping the phosphoric acid solution prepared in the liquid storage barrel 1 into a sampling pipeline through the phosphoric acid pump 2, then injecting the phosphoric acid solution into the sample gas, gradually reducing the amount of the phosphoric acid solution in the liquid storage barrel 1 when the phosphoric acid solution is gradually injected into the sample gas, and moving the upper liquid storage part 11 along with the phosphoric acid solution in the direction close to the lower liquid storage part 12 to reduce the volume of a liquid storage cavity, so that the pressure in the liquid storage barrel 1 can be kept within a certain range all the time (basically equal to the sum of the external air pressure of the liquid storage barrel 1 and the pressure formed by the upper liquid storage part 11 on the air in the barrel) and the quantitative balance of the phosphoric acid solution drops can be ensured, and the pumping process of the phosphoric acid pump 2 can be smoothly carried out; and the upper liquid storage part 11 has a tendency to move downward under the action of its own weight, that is, has a tendency to squeeze the phosphoric acid solution out of the liquid pipe 13, so that the load of the phosphoric acid pump 2 can be reduced when the phosphoric acid pump 2 sucks the phosphoric acid solution.
In the embodiments of the utility model, the sample gas is sampled in a small amount, and the phosphoric acid added into the sample gas is more trace, so that the phosphoric acid solution in one liquid storage barrel 1 can be used for a long time, and the stable constant-speed output is the main point of the phosphoric acid supply.
In yet another embodiment, the utility model further comprises a phosphoric acid pipe tee joint 14, wherein the phosphoric acid pipe tee joint 14 is communicated with the phosphoric acid pump 2 and used for changing the flow direction of the phosphoric acid solution, and the phosphoric acid pipe tee joint 14 is communicated with the phosphoric acid pump 2 and used for changing the flow direction of the phosphoric acid solution; the phosphoric acid pump 2 pumps the phosphoric acid solution prepared in the liquid storage barrel 1 into the sampling pipeline, and the phosphoric acid solution enters the sample gas after passing through the phosphoric acid pipe tee joint 14, so that the adsorption of liquid water to sulfur dioxide is prevented.
In still another embodiment of the present utility model, the bottom of the lower liquid storage portion 12 is provided with a heating device 15, and the heating device 15 is used to intermittently heat the phosphoric acid solution, so as to prevent the phosphoric acid solution from freezing, and avoid precipitation of crystals in the phosphoric acid solution; similarly, the phosphoric acid titration box is also internally provided with heat tracing equipment, the default heating temperature is 35 ℃, and the heating temperature can be set according to the required temperature.
In still another embodiment of the present utility model, a sliding sealing portion 16 is fixedly disposed on the top of the upper liquid storage portion 11, the sliding sealing portion 16 is sleeved on the liquid pipe 13, and the sliding sealing portion 16 is used for further sealing a connection portion between the liquid pipe 13 and the upper liquid storage portion 11.
In still another embodiment of the present utility model, the bottom of the liquid pipe 13 extends to the lower liquid storage portion 12 and is fixedly connected to the bottom wall of the lower liquid storage portion 12, a liquid inlet 131 is formed on a side of the liquid pipe 13 close to the bottom wall of the lower liquid storage portion 12, the liquid inlet 131 is formed on a side wall of the liquid pipe 13, and the phosphoric acid solution is sucked from the bottom of the lower liquid storage portion 12 so as to ensure the pumped amount of the phosphoric acid solution, and when the phosphoric acid solution is pumped, the phosphoric acid solution enters through the liquid inlet 131.
In still another embodiment of the present utility model, the upper end of the upper liquid storage portion 11 is provided with a liquid inlet 111, an openable connection, such as a screw connection or a clamping connection, on the liquid inlet 111 is provided with an end cover 112, the end cover 112 covers the liquid inlet 111 to seal the liquid inlet, and when the phosphoric acid solution needs to be added, only the clamped end cover 112 needs to be removed, and then the liquid needs to be added from the liquid inlet 111.
In still another embodiment of the present utility model, the upper end of the upper liquid storage portion 11 is pressed with an annular balancing weight 113, which is used for pressing the upper liquid storage portion 11 downward, the annular balancing weight 113 presses the upper liquid storage portion 11 downward under the action of self gravity, so as to prevent the upper liquid storage portion 11 from moving down due to excessive friction between the upper liquid storage portion 11 and the lower liquid storage portion 12, in addition, the upper liquid storage portion 11 also presses the phosphoric acid solution by the upper liquid storage portion 11, so that the phosphoric acid solution has a tendency to move outwards through the liquid pipe 13, and during the phosphoric acid solution extraction process, the upper liquid storage portion 11 moves downward until the bottom of the upper liquid storage portion is in contact with the bottom wall of the lower liquid storage portion 12, thus, the extraction of the phosphoric acid solution is assisted, the working pressure of the phosphoric acid pump 2 is reduced, and simultaneously, the downward movement of the upper liquid storage portion 11 along with the reduction of the phosphoric acid solution also helps to adjust the space in the liquid storage tank 1, and the extraction difficulty is reduced. And during liquid supplementing, the annular balancing weight 113 can be removed, so that the resistance to upward movement of the upper liquid storage part 11 during liquid supplementing is reduced.
In still another embodiment of the present utility model, a limit bar 121 is fixed at the upper end of the lower liquid storage portion 12, the limit bar 121 is attached to the outer wall of the upper liquid storage portion 11, the two are in an attached state and are not pressed together, a vent hole 122 is formed on the limit bar 121, the limit bar 121 is used for assisting in limiting the relative sliding between the upper liquid storage portion 11 and the lower liquid storage portion 12, preventing the upper liquid storage portion 11 from being separated from the lower liquid storage portion 12, and the vent hole 122 can avoid a closed chamber formed between the limit bar 121 and the upper liquid storage portion 11, so that the upper liquid storage portion 11 can slide freely.
In still another embodiment of the present utility model, the liquid pipe 13 is slidably sleeved with a floating plate 17, a through hole may be formed in the floating plate 17 to facilitate the liquid passing during the liquid supplementing, the density of the floating plate 17 is less than that of the phosphoric acid solution, and preferably, a compression spring 18 is further connected between the floating plate 17 and the top wall of the upper liquid storage portion 11; the compression spring 18 can push the floating plate 17 to separate from the upper liquid storage part 11 and extend into the lower liquid storage part 12 in a natural state, that is, when no relative sliding occurs between the upper liquid storage part 11 and the lower liquid storage part 12, and when no phosphoric acid solution exists in the liquid storage barrel 1, the floating plate 17 can enter the lower liquid storage part 12 under the elastic force of the compression spring 18 and the self gravity of the floating plate 17, that is, when the phosphoric acid solution is filled in the liquid storage barrel 1, the floating plate 17 is extruded in the upper liquid storage part 11. During specific work, along with the progress of titration, phosphoric acid solution is gradually extracted, when the lower end of the upper liquid storage part 11 is contacted with the bottom wall of the lower liquid storage part 12, the upper liquid storage part 11 cannot continuously descend, and when the phosphoric acid solution continuously decreases, the floating plate 17 is pushed to move downwards by the elastic acting force of the compression spring 18, so that a certain pressure is given to the phosphoric acid solution, and the burden of the phosphoric acid pump 2 is reduced; when the liquid is filled into the liquid storage barrel 1, the floating plate 17 is contacted with phosphoric acid solution, the phosphoric acid solution pushes the floating plate 17 to move upwards, so that a certain pressure is applied to the compression spring 18, the upper liquid storage part 11 can be pushed upwards in an auxiliary manner, and the floating plate 17 can also assist the upper liquid storage part 11 to reset.
Further, when the titration is performed, the phosphoric acid solution is slowly and relatively slid between the upper liquid storage portion 11 and the lower liquid storage portion 12 when the titration is performed, at this time, the lower end of the upper liquid storage portion 11 is tightly attached to the inner wall of the lower liquid storage portion 12, and the dynamic seal at this time is very slow and can be regarded as a static seal, so that the sealing effect is good, the probability of the upper liquid storage portion 11 being blocked is reduced due to slow descent, while when the phosphoric acid solution is injected into the liquid storage barrel 1, the process of injecting the phosphoric acid solution is large and fast, and because the lower end of the upper liquid storage portion 11 is tightly attached to the inner wall of the lower liquid storage portion 12, the probability of blocking is large when the upper liquid storage portion 11 is quickly lifted, the upper liquid storage portion 11 may be difficult to lift, and the sealing effect of the upper liquid storage portion 11 may be reduced due to direct violent lifting, so that the same sealing assembly cannot meet the two different requirements in the lifting and descending processes of the upper liquid storage portion 11.
For this reason, this embodiment proposes a dynamic seal assembly with multiple modes, in this embodiment, the upper liquid storage portion 11 and the lower liquid storage portion 12 are both polygonal structures, preferably rectangular structures, the dynamic seal assembly includes a mounting bar 31 fixedly disposed on four sides of the lower end surface of the upper liquid storage portion 11, a first liquid cavity 32 is disposed in the mounting bar 31, a first seal portion 33 is slidably disposed in the first liquid cavity 32, a return spring 34 is further connected between the first seal portion 33 and the first liquid cavity 32, the return spring 34 is used for maintaining the initial position of the first seal portion 33 in the first liquid cavity 32 and driving the return spring 33, one end of the first seal portion 33 away from the first liquid cavity 32 and is in contact with the inner wall of the lower liquid storage portion 12 to achieve sealing, a second liquid cavity 35 is also disposed in the mounting bar 31, the second liquid cavity 35 is in communication with the first liquid cavity 32, the second liquid cavity 35 is filled with the first liquid cavity 32, a return spring 34 is also connected between the first seal portion 33 and the first liquid cavity 32, a second seal portion 36 is disposed in the second liquid cavity 35 and the second liquid storage portion 36 is also in contact with the inner wall portion 12, a rolling block 361 is disposed in the sliding block groove 364 is disposed in the inner wall portion 12, and is pressed against the inner wall portion of the lower seal body 12, and is pressed against the inner wall of the lower seal body 12, and the rolling block is pressed against the inner wall of the seal body is formed in the lower seal body 12, the seal body is pressed against the inner wall of the seal body is closed, the seal body is closed by the inner wall, and the seal body is closed by the seal body is closed, the sealing effect is good, one end of the second sealing part 36 far away from the sealing column 365 is in sliding sealing penetrating installation strip 31 and extends into the upper liquid storage part 11, one end of the second sealing part 36 positioned in the upper liquid storage part 11 is fixedly connected with a connecting part 362, the upper end of the connecting part 362 is fixedly provided with a frustum-shaped bench extrusion piece 37, the edge position of the floating plate 17 can be contacted with the bench extrusion piece 37 and extrude the bench extrusion piece 37 when moving downwards, one end of the connecting part 362 near the second sealing part 36 is fixedly connected with a trapezoid limiting block 363, one end of the trapezoid limiting block 363 near the second sealing part 36 is an inclined surface and inclines upwards to one side far away from the second sealing part 36, the inner wall of the upper liquid storage part 11 is also provided with a switching unit 38, the switching unit 38 comprises a mounting groove arranged on the inner wall of the upper liquid storage part 11, a switch rod 381 is slidably mounted in the mounting groove, a mounting spring 382 is connected between the switch rod 381 and the top wall of the mounting groove, a horizontal end 383 is formed at the upper end of the switch rod 381, a bending end 384 is formed at the lower end of the switch rod 381, the bending end 384 and a trapezoid limiting block 363 are correspondingly matched, when the trapezoid limiting block 363 moves in a direction close to the inner wall of the upper liquid storage part 11, the trapezoid limiting block 363 can extrude the bending end 384 to move upwards and synchronously extrude the mounting spring 382, when the trapezoid limiting block 363 continues to move, the bending end 384 returns, the bending end 384 and the trapezoid limiting block 363 are clamped, in this embodiment, four sides of the floating plate 17 are not attached to the inner wall of the upper liquid storage part 11, a plurality of driving parts 385 are fixedly arranged on the floating plate 17, and the driving parts 385 and the horizontal end 383 are correspondingly matched, the length of the driving portion 385 is greater than the distance between the two circular faces of the table-type pressing member 37. When the phosphoric acid solution in the liquid storage barrel 1 is fully filled, the floating plate 17 and the driving part 385 gradually rise and enable the driving part 385 to be in contact with the horizontal end 383, and the continuous addition of the phosphoric acid solution can enable the floating plate 17 to continuously rise and further drive the driving part 385 to squeeze the horizontal end 383 to move upwards; when the phosphoric acid solution in the liquid storage barrel 1 is pumped out, the floating plate 17 and the driving part 385 cannot go down any more, at this time, the driving part 385 is abutted against one side edge of the table-type pressing part 37 close to the connecting part 362, and at this time, the driving part 385 does not contact with the curved surface on the table-type pressing part 37, and cannot push the table-type pressing part 37 to move continuously, so that the position between the two is limited, that is, the movement track of the driving part 385 is limited between the horizontal end part 383 and the table-type pressing part 37.
The dynamic sealing assembly with multiple modes has at least two sealing modes, namely a slow descending sealing mode when the upper liquid storage part 11 descends, and a fast ascending sealing mode when the upper liquid storage part 11 ascends rapidly, wherein the dynamic sealing assembly comprises a descending process and an ascending process under a complete working condition; in the descending process of the upper liquid storage part 11, in a slowly descending sealing mode, phosphoric acid solution is gradually extracted outwards, the upper liquid storage part 11 at the moment also descends slowly, in the state, in the initial state, the first sealing part 33 abuts against the inner wall of the lower liquid storage part 12 to realize sealing, in the process, the sealing column 365 abuts against the inner wall of the lower liquid storage part 12, but almost no relative extrusion force exists, the sliding mounting block at the moment does not slide relatively in the sliding groove 361, in the initial state, the sliding mounting block abuts against one end, close to the inner wall of the lower liquid storage part 12, of the sliding groove 361 under the elastic action of the compression spring 364, a certain distance is reserved between the horizontal end 383 on the switching rod 381 in the initial state and the trapezoid limiting block 363, the horizontal end 383 and the trapezoid limiting block 363 are correspondingly matched, and the horizontal end 383 is arranged in the advancing mode of the trapezoid limiting block 363; in this way, the upper liquid storage portion 11 slowly descends until the bottom of the upper liquid storage portion 11 contacts with the lower liquid storage portion 12, in this process, because the descending speed of the upper liquid storage portion 11 is slow and stable, the upper liquid storage portion 11 is not easy to clamp and has good sealing effect, when the upper liquid storage portion 11 abuts against the bottom wall of the lower liquid storage portion 12, at this time, the phosphoric acid solution continues to be gradually extracted outwards, the liquid level of the phosphoric acid solution is lowered, at the same time, under the cooperation of the elastic action of the compression spring 18, the floating plate 17 moves downwards along with the floating plate and contacts with the bench extrusion 37 (in this embodiment, preferably, the edge of the lower end of the floating plate 17 is an inclined plane, so as to be convenient to contact with the bench extrusion 37 and extrude the bench extrusion 37), thereby extruding the bench extrusion 37 to move towards the direction close to the inner wall of the upper liquid storage portion 11, at this time, the connecting portion 362 moves towards the direction close to the inner wall of the upper liquid storage portion 11 and drives the trapezoid stopper 363 to be clamped together with the bending end 384, at this time, at the same time, the connecting portion 362 pushes the second sealing portion 36 to be close to the inner wall of the lower liquid storage portion 12, so that the sealing portion 365 compresses tightly against the inner wall of the lower liquid storage portion 12, at this time, the upper end 12 is compressed by the upper inner wall, the first sealing portion 33 is compressed by the first sealing portion 32, and the first sealing portion 32 is compressed by the first sealing portion 32, and the first sealing portion is in a state, and the first sealing portion is compressed cavity 32, and the first sealing portion is in a state, and the volume is kept in a high state, and the volume, and the first cavity is compressed. Therefore, at the final time of the descending process, the second sealing portion 36 is pressed against the inner wall of the lower liquid storage portion 12, and the first sealing portion 33 is separated from the inner wall of the lower liquid storage portion 12, the contact position between the upper liquid storage portion 11 and the lower liquid storage portion 12 is sealed by the second sealing portion 36, the phosphoric acid solution is continuously extracted, the floating plate 17 is continuously lowered, the driving portion 385 is abutted against one side edge of the bench-type pressing portion 37 near the connecting portion 362, the driving portion 385 is limited by the bench-type pressing portion 37, and the switching to the quick-lifting sealing mode is smoothly performed, so that the ascending process of the upper liquid storage portion 11 is ready.
It should be noted that, in this embodiment, the floating plate 17 has a certain thickness, so when the volume of the floating plate 17 immersed in the phosphoric acid solution is different, the floating plate is subjected to buoyancy with different magnitudes, so that the dynamic sealing assembly is convenient to switch from the fast lifting sealing mode to the slow descending sealing mode; when a large amount of phosphoric acid solution is quickly added into the liquid storage barrel 1, the phosphoric acid solution enters the lower liquid storage part 12 and is in contact with the floating plate 17, at the moment, the floating plate 17 is upwards moved by buoyancy and enables the compression spring 18 to be compressed (the buoyancy of the floating plate 17 is smaller than that of the upper liquid storage part 11 at the moment), when the phosphoric acid solution is continuously increased, the volume of the floating plate 17 immersed in the phosphoric acid solution is increased, so that the buoyancy is gradually increased and pushes the compression spring 18 and the upper liquid storage part 11 to upwards move, and the sealing cylinder 365 on the second sealing part 36 at the moment is pressed on the lower liquid storage part 12, so that the upper liquid storage part 11 is quickly and stably lifted to a high position, and the trapezoid limiting block 363 and the bending end 384 are clamped together at the moment, namely, the trapezoid limiting block 363 and the bending end 384 are clamped together in the process of lifting the floating plate 17, namely, the relative positions of the connecting part 362 and the second sealing cylinder 36 are stable, and the sealing cylinder 365 is always pressed on the inner wall of the lower liquid storage part 12; when the upper liquid storage part 11 cannot continuously ascend, the phosphoric acid solution is continuously added, so that the volume of the floating plate 17 immersed in the phosphoric acid solution is increased, at this time, because the upper liquid storage part 11 cannot continuously move, the floating plate 17 continuously ascends and the driving part 385 ascends, the driving part 385 contacts with the horizontal end 383 and pushes the horizontal end 383 to slide upwards, so that the switching rod 381 moves upwards while extruding the mounting spring 382 to drive the extruding bending end 384 to move upwards, at this time, the bending end 384 loses the clamping position on the trapezoid limiting block 363, under the elastic action of the reset spring 34, the first sealing part 33 resets and is tightly attached to the inner wall of the lower liquid storage part 12, meanwhile, oil is sucked into the first liquid cavity 32 from the second liquid cavity 35, so that the second sealing part 36 also resets and leaves the inner wall of the lower liquid storage part 12, at this time, the dynamic sealing assembly is switched to a slow-descending sealing mode, and the automatic switching of the slow-descending sealing mode is realized passively through the cooperation of the phosphoric acid solution, the floating plate 17 and the dynamic sealing assembly, so that the slow-descending sealing mode can be smoothly switched under the conditions of the sealing effect of the upper liquid storage part 11 and the slow-descending sealing mode can be avoided, and the slow-descending sealing mode can be realized.
Still further, because need avoid the crystal in the phosphoric acid solution to precipitate and freeze the condition under low temperature environment, consequently phosphoric acid titration incasement also is provided with the heat tracing equipment to ensure the heat preservation heat tracing effect in the entire system, nevertheless, the water in the phosphoric acid solution is in the heat tracing state, volatilize easily, and when titrating the during operation, phosphoric acid solution can long-time storage in stock solution bucket 1, consequently, volatilized water can gather and form the drop of water at stock solution bucket 1 top, this embodiment provides a further scheme clearance and gathers the drop of water at stock solution bucket 1 top, two connecting grooves have been seted up at upper stock solution portion 11 top, sliding shaft 19 has been worn to the connecting groove, two sliding shaft 19 length is different, sliding shaft 19 bottom is connected with touch panel 191 through the pivot rotation, touch panel 191's size is less than upper stock solution portion 11 internal plane size, touch panel 191 replaces the touch panel diapire to gather the drop of water in upper stock solution portion 11, touch panel 191 has seted up through-through opening 192, through-opening 192 is used for the top spring plate 191, the top spring tube 13 is still connected with the top spring tube 13 through-type spring tube 191, the top spring tube 13 is connected to the top spring tube 13, and the embodiment is used for the spring tube 13 is connected to the top through-shaped through-tube 13, the top spring tube 13 is connected to the top spring tube 13. Before phosphoric acid solution is added, in order to enable the upper liquid storage part 11 to rise smoothly, an annular balancing weight 113 is required to be added at the top of the upper liquid storage part 11 to drive the upper liquid storage part 11 to gradually move downwards, when the annular balancing weight 113 gradually presses the top of the upper liquid storage part 11, the longer sliding shaft 19 is gradually pressed inwards, so that one side, which is contacted with the longer sliding shaft 19, of the liquid contact plate 191 is driven to deflect downwards, the liquid contact plate 191 is inclined, water drops gathered on the liquid contact plate 191 automatically flow down, the annular balancing weight 113 continues to move, the shorter sliding shaft 19 is pressed, the liquid contact plate 191 is not inclined any more when the shorter sliding shaft 19 is pressed, and when the annular balancing weight 113 is completely pressed at the upper end of the upper liquid storage part 11, the state of the liquid contact plate 191 is stable, and therefore, the water drops remained on the liquid contact plate 191 can flow down along the inclined direction of the liquid contact plate 191.
In another embodiment, the rotating shaft is sleeved with a torsion spring, the torsion spring is connected between the sliding shaft 19 and the touch liquid plate 191, the torsion spring can enable the initial state of the touch liquid plate 191 to incline to one side, the initial state of the touch liquid plate 191 is inclined, water drops are not easy to gather, when the annular balancing weight 113 is added, the touch liquid plate 191 can incline to the other side through the sliding shaft 19 with different lengths, the state of the touch liquid plate 191 is different as much as possible, and the movement amplitude of the touch liquid plate 191 is increased, so that water drop residues can be further removed.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (9)
1. The phosphoric acid titration device comprises a liquid storage barrel and a phosphoric acid pump communicated with the liquid storage barrel, and is characterized in that the liquid storage barrel comprises an upper liquid storage part and a lower liquid storage part which are sleeved together in a sliding manner, and further comprises a liquid pipe which is connected to the upper liquid storage part in a sliding manner, and the liquid pipe is communicated with the phosphoric acid pump;
the floating plate is sleeved on the liquid pipe in a sliding way, a compression spring is further connected between the floating plate and the top wall of the upper liquid storage part, and the compression spring can push the floating plate to be separated from the upper liquid storage part and extend into the lower liquid storage part in a natural state;
the dynamic sealing assembly comprises a mounting strip fixedly arranged on four sides of the lower end face of the upper liquid storage part, a first liquid cavity is formed in the mounting strip, a first sealing part is arranged in the first liquid cavity in a sliding way, a return spring is further connected between the first sealing part and the first liquid cavity, the return spring is used for maintaining the initial position of the first sealing part in the first liquid cavity, one end of the first sealing part, far away from the return spring, extends out of the first liquid cavity and is engaged with the inner wall of the lower liquid storage part to realize sealing, a second liquid cavity is further formed in the mounting strip, the second liquid cavity is communicated with the first liquid cavity, oil liquid is filled in the second liquid cavity and the first liquid cavity, a second sealing part is also arranged in the second liquid cavity in a sliding way, one end of the second sealing part, far away from the second liquid cavity, faces the inner wall of the lower liquid storage part, the second sealing part is close to one end of the inner wall of the lower liquid storage part and is provided with a sliding groove, a sliding installation block is arranged in the sliding groove in a sliding way, a compression spring is connected between the sliding installation block and the bottom wall of the sliding groove, one end of the sliding installation block close to the inner wall of the lower liquid storage part is provided with a sealing column in a rolling way, when the second sealing part is abutted against the inner wall of the lower liquid storage part, the sealing column is abutted against the inner wall of the lower liquid storage part to form rolling sealing, the compression spring can enable the sealing column to be compressed on the inner wall of the lower liquid storage part, one end of the second sealing part far away from the sealing column is provided with a mounting strip in a sliding way and extends into the upper liquid storage part in a penetrating way, one end of the second sealing part, which is positioned in the upper liquid storage part, is fixedly connected with a connecting part, the upper end of the connecting part is fixedly connected with a frustum-shaped table extrusion part, one end of the connecting part, which is close to the second sealing part, is fixedly connected with a trapezoid limiting block, one end of the trapezoid limiting block, which is close to the second sealing part, is an inclined surface and inclines to one side, which is laterally far away from the second sealing part, on the inclined surface;
the switching unit comprises a mounting groove arranged on the inner wall of the upper liquid storage part, a switching rod is slidably mounted in the mounting groove, a mounting spring is connected between the switching rod and the top wall of the mounting groove, a horizontal end part is formed at the upper end of the switching rod, a bending end is formed at the lower end of the switching rod, the bending end and a trapezoid limiting block are correspondingly matched, when the trapezoid limiting block moves towards the direction close to the inner wall of the upper liquid storage part, the trapezoid limiting block can extrude the bending end to move upwards and synchronously extrude the mounting spring, a plurality of driving parts are fixedly arranged on the floating plate, and the driving parts and the horizontal end parts are correspondingly matched, and the length of the driving parts is larger than the distance between two circular surfaces of the bench type extrusion part.
2. The phosphoric acid titration device of claim 1, further comprising a phosphate tee in communication with the phosphoric acid pump for changing the flow direction of the phosphoric acid solution.
3. The phosphoric acid titration device of claim 1, wherein a heating device is mounted to the bottom of the lower reservoir.
4. The phosphoric acid titration apparatus according to claim 1, wherein a sliding seal is fixedly arranged at the top of the upper liquid storage part, and the sliding seal is sleeved on the liquid pipe.
5. The phosphoric acid titration device according to claim 1, wherein the bottom of the liquid pipe extends to the lower liquid storage portion and is fixedly connected to the bottom wall of the lower liquid storage portion, and a liquid inlet is formed in one side of the liquid pipe, which is close to the bottom wall of the lower liquid storage portion.
6. The phosphoric acid titration apparatus according to claim 1, wherein the upper end of the upper liquid storage portion is provided with a liquid inlet, the upper end of the upper liquid storage portion is clamped with an end cover, and the end cover covers the liquid inlet to seal the liquid inlet.
7. The phosphoric acid titration device according to claim 1, wherein the upper end of the upper reservoir is pressed with an annular weight for pressing the upper reservoir downward.
8. The phosphoric acid titration device according to claim 1, wherein a limit strip is fixedly arranged at the upper end of the lower liquid storage part, the limit strip is attached to the outer wall of the upper liquid storage part, and a vent hole is formed in the limit strip.
9. The phosphoric acid titration device of claim 1, wherein the compression spring is configured to urge the float plate away from the upper reservoir when in a natural state.
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| CN202311378879.9A CN117110526B (en) | 2023-10-24 | 2023-10-24 | Phosphoric acid titration device |
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| CN202311378879.9A CN117110526B (en) | 2023-10-24 | 2023-10-24 | Phosphoric acid titration device |
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| CN117110526A (en) | 2023-11-24 |
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