Accurate dosing system of waste heat power generation circulating water system

Abstract

The invention discloses a precise dosing system of a waste heat power generation circulating water system, which comprises a liquid medicine storage box, a temporary storage cylinder and a liquid medicine adding mechanism, a plurality of agent storage box bodies for storing liquid medicine are arranged in the liquid medicine storage box body, the temporary storage cylinder is arranged among the plurality of agent storage box bodies, and the liquid medicine adding mechanism is arranged outside the liquid medicine storage box bodies; and meanwhile, the chemical adding amount and the needed chemical are adjusted according to the water environment, the chemical amount is reduced, and meanwhile the effect after chemical adding is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of equipment cleaning, and particularly to a precise chemical dosing system for the circulating water system of waste heat power generation. Background Art

[0002] The original chemical dosing system for the circulating water of waste heat power generation used a "two-pump and three-tank" chemical dosing device, which directly injected chemicals into the circulating water tank by a plunger pump to achieve the purposes of scale prevention, scale inhibition, sterilization, and algae removal. The operators found that there were many problems with this device: 1. Even when dosing at normal frequencies, the equipment would still scale; 2. When the chemicals were injected into the circulating water tank, all the chemicals were diluted, and very little actually acted on the heat exchange equipment. Unless a large amount of chemicals were added, which was uneconomical; 3. The instability and even waste of chemical addition were caused by human factors. In current waste heat power generation of cement, the waste gas in the rotary kiln is mainly introduced into the boiler to evaporate water into steam. The steam is transported to the steam turbine to convert the kinetic energy of the steam into mechanical energy for power generation. After power generation, the steam is cooled by a condenser and then returned to the circulation tank, thus realizing power generation. However, during power generation, since the water needs to be recycled, chemicals need to be added to the water body to achieve the purposes of scale prevention, scale inhibition, sterilization, and algae removal, so as to avoid equipment scaling and keep the water body clean. Different chemicals need to be added in different environments, and the current manual chemical addition method cannot meet the above requirements. Summary of the Invention

[0003] Aiming at the deficiencies of the above-mentioned prior art, the present invention proposes a precise chemical dosing system for the circulating water system of waste heat power generation, which facilitates automatic chemical dosing, and at the same time adjusts the chemical dosage and required chemicals according to the water body environment, reduces the chemical dosage while ensuring the effect after chemical addition.

[0004] To achieve the above object, the solution of the present invention is: a precise chemical dosing system for the circulating water system of waste heat power generation, including a liquid medicine storage tank, a temporary storage cylinder, and a liquid medicine adding mechanism. A plurality of medicine storage boxes for storing liquid medicine are installed inside the liquid medicine storage tank body. A temporary storage cylinder is arranged between the plurality of medicine storage boxes. A liquid medicine adding mechanism is arranged outside the liquid medicine storage tank. The liquid medicine adding mechanism is connected to the temporary storage cylinder through a pipeline. A medicine pumping pump is arranged on the pipeline. The liquid medicine adding mechanism is installed on the water inlet pipe of the waste heat power generation circulating water system. The liquid medicine storage box includes a protective box body, a storage box, and a lifting medicine extraction assembly. A notch is formed on one side of the protective box body, and a sealing door is hinged on the notch. A plurality of storage box bodies arranged side by side are installed in the protective box body. A sliding assembly is arranged between the storage box body and the inner bottom of the protective box body. A lifting medicine extraction assembly is arranged above each storage box body. The lifting medicine extraction assembly includes a medicine extraction pipe, an adjustment assembly, a lifting material blocking pipe, and a medicine extraction pump. A medicine extraction pipe is inserted into each storage box body, and a material blocking pipe is inserted into the top of each medicine extraction pipe. A limit plate is installed at the top of the material blocking pipe, and a spring is sleeved on the material blocking pipe. The top and bottom of the spring respectively abut against the limit plate and the medicine extraction pipe. A through hole is formed at the bottom of each material blocking pipe, and a water passing hole communicating with the through hole is formed on the side wall of the material blocking pipe. A conduit communicating with the pump is arranged on one side of the plurality of medicine extraction pipes, and the conduit is respectively communicated with the plurality of medicine extraction pipes. The plurality of lifting material blocking pipes are arranged side by side, and an adjustment assembly is arranged above the plurality of lifting material blocking pipes to realize medicine extraction from a specific box body through the adjustment assembly; The other end of the pipeline is butted with a liquid medicine adding mechanism. The liquid medicine adding mechanism includes a rotating ring, a spraying head, and a swinging assembly. A rotating ring is sleeved on the water inlet pipe. The rotating ring and the water inlet pipe are sealed through a sealing bearing. A hollow interlayer is arranged on the inner wall of the rotating ring. A spraying head is fixed on the inner wall of the rotating ring and is communicated with the hollow interlayer. A swinging assembly is installed on the rotating ring to realize the reciprocating swing of the rotating ring.

[0005] Preferably, the swinging assembly includes a rotating impeller, a rotating shaft, a crank-rocker mechanism, a translation rod, and a pulley. A rotating impeller is arranged in the water inlet pipe. A rotating shaft is installed on the rotating impeller. The rotating shaft passes through the wall of the water inlet pipe and extends out of the water inlet pipe. The rotating shaft and the water inlet pipe are connected through a sealing bearing. A crank-rocker mechanism is installed at one end of the rotating shaft located outside the water inlet pipe. A sleeve is installed on the outer wall of the water inlet pipe. A translation rod is inserted into the sleeve. One end of the translation rod is connected with the crank-rocker mechanism. A pulley is installed at the other end of the translation rod. An inclined groove is installed at one end of the rotating ring facing the pulley. One end of the translation rod installed with the pulley extends into the inclined groove, and the pulley is attached to the inner wall of the inclined groove. A return spring is installed between the rotating ring and the outer wall of the water inlet pipe.

[0006] Preferably, the spraying head is a 90° bent spraying head, and the spraying head is attached to the inner wall of the water inlet pipe.

[0007] Preferably, the adjusting assembly includes a rotating shaft and cams. A plurality of cams are mounted on the rotating shaft through bearings, and counterweights are arranged on both sides of the cams to make the long sides of the cams face upward. A sliding track is installed above the rotating shaft, and a sliding block is installed above the sliding track. Drums driven by motors are arranged on both sides of the sliding track, and the drums are connected to the sliding block by ropes. An elevating and pressing assembly is installed between the lower part of the sliding track and the upper part of the rotating shaft. The sliding block presses the elevating and pressing assembly. A rotating cylinder is fixed on one side of each cam and is coaxial with the rotating shaft. A limiting rod is inserted into the rotating cylinder, and a compression spring is sleeved on the limiting rod and is located inside the rotating cylinder. The compression spring pushes the limiting rod outwards. A plurality of grooves are formed on the rotating shaft opposite to the limiting rods. The elevating and pressing assembly presses the limiting rods, so that the limiting rods extend into the grooves to make the cams rotate following the rotating shaft.

[0008] Preferably, the elevating and pressing assembly includes a mounting frame, an elevating rod and a pressing arc plate. The mounting frame is located below the sliding track. The elevating rod passes through the mounting frame for lifting. A spring is sleeved on the elevating rod, and the spring pulls the elevating rod to rise. An inclined plane block is installed at the bottom of the sliding block, and the top of the elevating rod contacts the inclined plane of the inclined plane block, and the inclined plane block presses the elevating rod downwards. A pressing arc plate is installed at the bottom of the elevating rod, and the top of the limiting rod contacts the inner wall of the arc pressing plate. The limiting rod is an elastic telescopic rod.

[0009] Preferably, a pre-stirring assembly is installed in each medicine storage box body. The pre-stirring assembly is installed on the medicine extraction pipe. A rotating pipe is installed at the bottom of the medicine extraction pipe through a bearing. The pre-stirring assembly is installed on the outer wall of the rotating pipe. The pre-stirring assembly is a stirring blade and is installed on the outer wall of the rotating pipe. A turbine blade is installed in the rotating pipe. When the medicine extraction pipe extracts medicine, the turbine blade drives the rotating cylinder to rotate, so as to achieve stirring.

[0010] Preferably, the cam includes a mounting cylinder, two clamping plates, a bearing sector block and a mounting ring. The mounting cylinder is installed on the rotating shaft through a bearing. The two clamping plates are installed on both sides of the mounting cylinder. A mounting ring is fixed on the inner sides of the two clamping plates. A plurality of bolt holes are formed in the mounting ring. The inner side of the bearing sector block fits with the outer wall of the mounting ring, and the bearing sector block is locked on the mounting ring by bolts. Thus, different numbers of bearing sector blocks can be installed according to requirements, so as to adjust the time ratio of the blocking pipe to open and close the medicine extraction tank.

[0011] To achieve the above object, the advantages of the present invention are as follows: it is convenient to realize automatic dosing, and at the same time, the dosing amount and the required medicine can be adjusted according to the water environment, reducing the dosage of the medicine while ensuring the effect after dosing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a top view of the present invention.

[0013] Figure 2 It is a cross-sectional view of the liquid medicine storage box of the present invention.

[0014] Figure 3 It is a schematic diagram of the lifting and drawing medicine component of the present invention.

[0015] Figure 4 It is a schematic diagram of the adjustment component of the present invention.

[0016] Figure 5 It is a schematic diagram of the cam of the present invention.

[0017] Figure 6 It is a schematic diagram of the drug extraction tube and the pre-mixing assembly of the present invention.

[0018] Figure 7 It is a schematic diagram of the pressing arc plate, the rotating cylinder and the rotating shaft of the present invention (a comparison diagram of the two states of the pressing arc plate being raised and lowered).

[0019] Figure 8 It is a cross-sectional view of the medicine extraction pipe and the lifting and blocking pipe of the present invention.

[0020] Figure 9 It is a schematic diagram of the rotating ring and the water inlet pipe of the present invention.

[0021] Figure 10 It is a transverse cross-sectional view of the rotating ring and the water inlet pipe of the present invention.

[0022] Figure 11 This is a longitudinal cross-sectional view of the rotating ring and the water inlet pipe.

[0023] Among them, 1. liquid medicine storage box, 2. protective box body, 3. storage box, 4. lifting and drawing medicine assembly, 5. drawing medicine pipe, 6. adjustment assembly, 7. rotating shaft, 8. cam, 9. mounting cylinder, 10. splint, 11. pressure-bearing fan-shaped block, 12. mounting ring, 13. bolt hole, 14. lifting and blocking pipe, 15. limit plate, 16. water hole, 17. drawing medicine pump, 18. catheter, 19. sliding assembly, 20. temporary storage cylinder, 21. liquid medicine adding mechanism, 22. rotating ring, 23. hollow interlayer, 24. spray head, 25. swing assembly , 26, rotating impeller, 27, rotating shaft, 28, crank rocker mechanism, 29, translation rod, 30, sleeve, 31, pulley, 32, inclined groove, 33, reset spring, 34, sliding track, 35, sliding block, 36, reel, 37, lifting and pressing assembly, 38, mounting frame, 39, lifting rod, 40, pressing arc plate, 41, inclined block, 42, rotating cylinder, 43, limit rod, 44, compression spring, 45, groove, 46, water inlet pipe, 47, pre-mixing assembly, 48, rotating tube, 49, mixing blade, 50, turbine blade DETAILED DESCRIPTION

[0024] The present invention will be further described in conjunction with the accompanying drawings.

[0025] As Figures 1-11 shown, a precise chemical dosing system for a waste heat power generation circulating water system includes a liquid medicine storage tank 31, a temporary storage cylinder 20 and a liquid medicine adding mechanism 21. A plurality of medicine storage tanks for storing liquid medicines are installed in the medicine storage tank 3 body. Different liquid medicines are respectively poured into different medicine storage tanks 3 body. The temporary storage cylinder 20 is installed on the top of the plurality of medicine storage tanks 3 body by means of bolt fastening. A liquid medicine adding mechanism 21 is arranged outside the liquid medicine storage tank 31. The liquid medicine adding mechanism 21 is connected to the temporary storage cylinder 20 through a pipeline. A medicine pumping pump is arranged on the pipeline. The liquid medicine adding mechanism 21 is installed on the water inlet pipe 46 of the waste heat power generation circulating water system. In this way, automatic chemical dosing is realized. According to different requirements of the water body, the medicine in the corresponding medicine storage tank 3 body is placed into the temporary storage cylinder 20, and then the liquid medicine in the temporary storage cylinder 20 is pumped into the water inlet pipe 46 by a pump. In this way, the liquid medicine is directly introduced into the water inlet pipe 46 between the circulation pool and the boiler. The liquid medicine enters the boiler, steam turbine, condenser in sequence and then flows back into the circulation pool. In this way, the medicine is not diluted by the circulation pool. The added medicine is first treated by the boiler, steam turbine and condenser, and then finally enters the circulation pool for dilution. In this way, the medicine effect is better. In this case, compared with directly adding the medicine into the circulation pool at present, the dosage of the medicine is reduced; The liquid medicine storage tank 31 includes a protective box body 2, a storage tank 3 and a lifting medicine extraction assembly 4. There is a notch on the front side of the box body, and a sealing door that closes the notch is hinged on the notch. A plurality of storage tank bodies 3 arranged side by side are installed in the protective box body 2. A sliding assembly 19 is arranged between the storage tank body 3 and the inner bottom of the protective box body 2 (that is, a slide rail and a slider are installed between the bottom of the storage tank body 3 and the inner bottom of the protective box body 2 by means of bolt fastening. The slide rail is installed on the inner bottom of the protective box body 2 by bolts. A slider that is clamped on the slide rail is installed at the bottom of each storage tank body 3 by means of bolt fastening, and the storage tank body 3 is pulled out for adding medicine or cleaning). An lifting medicine extraction assembly 4 is arranged above each storage tank body 3. The lifting medicine extraction assembly 4 includes a medicine extraction pipe 5, an adjustment assembly 6, a lifting material blocking pipe 14 and a pump. A medicine extraction pipe 5 is inserted into each storage tank body 3 (the medicine extraction pipe 5 passes through the protective box body 2 and extends into the storage tank body 3, and the bottom of the medicine extraction pipe 5 is close to the bottom of the storage tank body 3). A material blocking pipe is inserted into the top of each medicine extraction pipe 5. The outer wall of the material blocking pipe fits with the inner wall of the medicine extraction pipe 5. The material blocking pipe moves up and down in the medicine extraction pipe 5. A limiting plate 15 is fixedly installed at the top of the material blocking pipe by welding. The limiting plate 15 seals the top of the material blocking pipe. A spring is sleeved on the material blocking pipe. The top and bottom of the spring respectively abut against the limiting plate 15 and the medicine extraction pipe 5. The material blocking pipe is lifted upward by the spring. A through hole is opened at the bottom of each material blocking pipe. The bottom of the material blocking pipe is communicated with the medicine extraction pipe 5. A water passing hole 16 communicated with the through hole is opened on the side wall of the material blocking pipe. A conduit 18 communicated with the pump is arranged on one side of the plurality of medicine extraction pipes 5 by welding. The conduit 18 is respectively connected and communicated with the plurality of medicine extraction pipes 5 by welding. The plurality of lifting material blocking pipes 14 are arranged horizontally side by side. An adjustment assembly 6 is arranged above the plurality of lifting material blocking pipes 14. The adjustment assembly 6 is used to extract medicine from a specific box body. The adjustment assembly 6 presses a specific material blocking pipe. In this way, the conduit 18 is communicated with the medicine extraction pipe 5 through the water passing hole 16. In this way, the pump pumps the liquid medicine in the corresponding storage tank body 3 into the temporary storage cylinder 20 through the medicine extraction pipe 5. The temporary storage cylinder 20 is covered with a breathable cover plate. The bottom of the temporary storage cylinder 20 is funnel-shaped, and the bottom cylinder threaded joint of the temporary storage cylinder 20 is connected and communicated with a pipeline. The pump transports the liquid medicine in the temporary storage cylinder 20 to the liquid medicine adding mechanism 21; The other end of the pipeline is connected to a liquid medicine adding mechanism 21. The liquid medicine adding mechanism 21 includes a rotating ring 22, a spraying head 24 and a swinging assembly 25. A rotating ring 22 is sleeved on the water inlet pipe 46 (a circular notch is formed on the water inlet pipe 46, the rotating ring 22 is sleeved on the water inlet pipe 46, and the circular notch of the water inlet pipe 46 is covered by the rotating ring 22). A sealing bearing is used for sealing between the rotating ring 22 and the water inlet pipe 46 (the sealing bearing is fixed at the interval position between the rotating ring 22 and the outer wall of the water inlet pipe 46 by welding). A hollow sandwich layer 23 for dispersing the liquid medicine is formed on the inner wall of the rotating ring 22. The hollow sandwich layer 23 is connected and communicated with the pipeline. A threaded joint is installed at the end of the pipeline through a clamp. A threaded hole is formed on the outer wall of the rotating ring 22. The threaded joint extends into the threaded hole to achieve butt joint and communication. A plurality of spraying heads 24 distributed in a circular array are fixed on the inner wall of the rotating ring 22 by welding, and the spraying heads 24 are communicated with the hollow sandwich layer 23. A swinging assembly 25 is installed on the rotating ring 22. The reciprocating swing of the rotating ring 22 is realized through the swinging assembly 25. The swing distance of the rotating ring 22 is the distance between two spraying heads 24. In this way, the spraying range of the spraying heads 24 is increased through swinging, which is convenient for the liquid medicine to be quickly and evenly dispersed in water for treatment.

[0026] The swing assembly 25 includes a rotating impeller 26, a rotating shaft 27, a crank-rocker mechanism 28, a translation rod 29 and a pulley 31. Among them, the rotating impeller 26 is arranged in the water inlet pipe 46. The rotating shaft 27 is installed on the rotating impeller 26 by means of bolt fastening. Both ends of the rotating shaft 27 pass through the wall of the water inlet pipe 46 and extend out of the water inlet pipe 46. The rotating shaft 27 and the water inlet pipe 46 are connected by a sealed bearing, that is, a through hole is opened on the water inlet pipe 46, a sealed bearing is placed in the through hole, the rotating shaft 27 is inserted into the sealed bearing, the outer ring of the sealed bearing is welded in the through hole, and the inner ring of the sealed bearing is welded to the rotating shaft 27, so as to realize the rotating connection between the rotating shaft 27 and the water inlet pipe 46. The crank-rocker mechanism 28 is installed at one end of the rotating shaft 27 outside the water inlet pipe 46 by welding (the crank of the crank-rocker mechanism 28 is welded to the rotating shaft 27 by welding, and the rocker of the crank-rocker mechanism 28 is hinged on the translation rod 29). A sleeve 30 is installed on the outer wall of the water inlet pipe 46 by welding. The translation rod 29 is inserted into the sleeve 30, and the translation rod 29 is moved in the sleeve 30. One end of the translation rod 29 is hinged to the crank-rocker mechanism 28, and the other end of the translation rod 29 is installed with a pulley 31 by means of bolt fastening. The reciprocating movement of the translation rod 29 is realized by the crank-rocker mechanism 28. An inclined groove 32 is installed at one end of the rotating ring 22 facing the pulley 31 by welding. One end of the translation rod 29 installed with the pulley 31 extends into the inclined groove 32 and the pulley 31 is in contact with the inner wall of the inclined groove 32. A return spring 33 is installed between the rotating ring 22 and the outer wall of the water inlet pipe 46. When working, due to the existence of water flow in the water inlet pipe 46, the water flow impels the rotating impeller 26 to rotate, so that the rotating shaft 27 drives the crank-rocker mechanism 28 to work, and the crank-rocker mechanism 28 drives the translation rod 29 to reciprocate. When the translation rod 29 translates towards the rotating ring 22, the translation rod 29 drives the inclined groove 32 to rotate around the water inlet pipe 46. When the translation rod 29 returns, the rotating ring 22 returns by means of the spring, so as to realize the small-range reciprocating rotation of the rotating ring 22.

[0027] The spraying head 24 is a 90° bent spraying head. The spraying head 24 is in contact with the inner wall of the water inlet pipe 46, so that the concentration of the liquid medicine close to the inner wall of the water inlet pipe 46 is high, and scale is generated and adheres to the inner wall of the water inlet pipe 46.

[0028] The adjustment assembly 6 includes a rotating shaft 7 and a cam 8. A stepping motor is fixed to one end of the rotating shaft 7 by welding. A plurality of cams 8 are mounted on the rotating shaft 7 through bearings, and the cam 8 and the rotating shaft 7 can rotate relative to each other. Two oppositely arranged columns are mounted on the top surface of the protection box body 2 by bolts. The two ends of the rotating shaft 7 are mounted on the columns through bearings for rotation. Counterweight blocks are mounted on both sides of the cam 8 by welding, and the long side of the cam 8 is made to face upward through the counterweight blocks, that is, when the cam 8 is not in use, the cam 8 gives way to the material blocking pipe to prevent the cam 8 from pressing on the material blocking pipe when not in use; A sliding track 34 is installed above the rotating shaft 7. The two ends of the sliding track 34 are mounted on the columns by bolts. A sliding block 35 that moves on the sliding track 34 is clamped above the sliding track 34. On both sides of the sliding track 34, drums 36 driven by motors are mounted on the columns. The outer shell of the motor is mounted on the columns by bolts. The drum 36 and the sliding block 35 are connected by a pull rope (the two ends of the pull rope are mounted on the drum 36 and the sliding block 35 by bolts, and the translation of the sliding block 35 is realized by the rotation of the drum 36). An elevating pressing assembly 37 is installed between the lower part of the sliding track 34 and the upper part of the rotating shaft 7. The sliding block 35 presses the elevating pressing assembly 37 to descend. A rotating cylinder 42 is fixed to one side of each cam 8 by welding, and the rotating cylinder 42 is coaxial with the rotating shaft 7. A limiting rod 43 is inserted into the rotating cylinder 42, and the limiting rod 43 can expand and contract in the rotating cylinder 42. A compression spring 44 is sleeved on the limiting rod 43 and the compression spring 44 is located inside the rotating cylinder 42. The compression spring 44 pushes the limiting rod 43 outwards. A plurality of grooves 45 opposite to the limiting rod 43 are formed on the rotating shaft 7. The limiting rod 43 extends into the grooves 45 to realize the linkage rotation of the rotating cylinder 42. The limiting rod 43 is pressed by the elevating pressing assembly 37, so that the limiting rod 43 extends into the grooves 45 to realize the rotation of the cam 8 following the rotating shaft 7. The position of the sliding block 35 is moved by the rotation of the drum 36, so as to realize the linkage of different cams 8 and the rotating shaft 7, and the corresponding material blocking pipe is pressed down to realize the medicine extraction of the medicine extraction pipe 5.

[0029] The lifting and pressing assembly 37 includes a mounting bracket 38, a lifting rod 39 and a pressing arc plate 40. The mounting bracket 38 is located below the sliding track 34. The mounting bracket 38 is a flat plate. The lifting rod 39 passes through the mounting bracket 38 for lifting. A spring is sleeved on the lifting rod 39. The bottom of the spring presses on the mounting bracket 38, and the top of the spring is fixed to the lifting rod 39 by welding. The lifting rod 39 is pulled up by the spring. A bevel block 41 is installed at the bottom of the sliding block 35 by means of bolt fastening. The bevel block 41 moves horizontally with the sliding block 35. The top of the lifting rod 39 contacts the bevel of the bevel block 41. When the sliding block 35 moves above the lifting rod 39, the lifting rod 39 is pressed down by the bevel block 41. A pressing arc plate 40 is installed at the bottom of the lifting rod 39 by means of bolt fastening. The top of the limiting rod 43 contacts the inner wall of the arc pressing plate. The limiting rod 43 is an elastic telescopic rod. When the arc pressing plate descends to the lowest position, the arc pressing plate is coaxial with the rotating shaft 7. Three limiting rods 43 are installed on each rotating cylinder 42. The arc pressing plate is semicircular. The limiting rod 43 is pressed down by the arc pressing plate and placed into the groove 45 of the rotating shaft 7, so as to realize the linkage between the cam 8 and the rotating shaft 7 and adjust the rotation speed of the stepping motor to achieve fixed-time medicine delivery.

[0030] A pre-stirring assembly 47 is installed in each medicine storage tank 3 body. The pre-stirring assembly 47 is installed at the bottom of the medicine extraction tube 5. A rotating tube 48 is installed at the bottom of the medicine extraction tube 5 through a bearing. The pre-stirring assembly 47 is installed on the outer wall of the rotating tube 48. The pre-stirring assembly 47 is a stirring blade 49 and the stirring blade 49 is installed on the outer wall of the rotating tube 48 by welding. A turbine blade 50 is installed in the rotating tube 48. When the medicine extraction tube 5 extracts medicine, the turbine blade 50 drives the rotating cylinder 42 to rotate, so as to realize pre-stirring and avoid stratification caused by long-term storage of the liquid medicine.

[0031] The cam 8 includes a mounting cylinder 9, two clamping plates 10, a pressure-bearing sector block 11 and a mounting ring 12. The mounting cylinder 9 is installed on the rotating shaft 7 through a bearing. The two clamping plates 10 are installed on both sides of the mounting cylinder 9 by welding. A mounting ring 12 is fixed to the inner side walls of the two clamping plates 10 by welding. A plurality of bolt holes 13 are opened in the mounting ring 12. The inner side of the pressure-bearing sector block 11 fits the outer wall of the mounting ring 12. The top surface of the sealing plate is an arc surface. The pressure-bearing sector block 11 is locked to the mounting ring 12 by bolts, so that different numbers of pressure-bearing sector blocks 11 can be installed according to requirements, so as to adjust the time ratio of the blocking tube to open and close the medicine extraction tank.

Claims

1. A precise dosing system for a waste heat power generation circulating water system, comprising a liquid medicine storage box, a temporary storage cylinder and a liquid medicine adding mechanism, wherein a plurality of liquid medicine storage boxes for storing liquid medicine are installed in the liquid medicine storage box, a temporary storage cylinder is arranged between the plurality of liquid medicine storage boxes, a liquid medicine adding mechanism is arranged outside the liquid medicine storage box, the liquid medicine adding mechanism is connected to the temporary storage cylinder through a pipeline, a medicine pump is arranged on the pipeline, and the liquid medicine adding mechanism is installed on the water inlet pipe of the waste heat power generation circulating water system, characterized in that ； The liquid medicine storage box includes a protective box body, a storage box and a lifting medicine extraction component. A notch is opened on one side of the protective box body and a sealing door is hinged on the notch. A plurality of storage boxes arranged side by side are installed in the protective box body. A sliding component is arranged between the storage box body and the bottom of the protective box body. A lifting medicine extraction component is arranged above each storage box body, wherein the lifting medicine extraction component includes a medicine extraction pipe, an adjustment component, a lifting material blocking pipe and a medicine extraction pump. A medicine extraction pipe is inserted into each storage box body, and the top of each medicine extraction pipe is inserted into There is a blocking pipe, a limit plate is installed on the top of the blocking pipe, a spring is sleeved on the blocking pipe, the top and bottom of the spring are respectively against the limit plate and the drug extraction pipe, a through hole is opened at the bottom of each blocking pipe, a water hole connected with the through hole is opened on the side wall of the blocking pipe, a conduit connected with a pump is arranged on one side of the multiple drug extraction pipes, the conduit is respectively connected with the multiple drug extraction pipes, multiple lifting blocking pipes are arranged side by side, and an adjustment component is arranged above the multiple lifting blocking pipes, and the drug extraction of the box is realized through the adjustment component; The other end of the pipeline is connected to a liquid medicine adding mechanism, which includes a rotating ring, a spray head and a swinging assembly, wherein a rotating ring is sleeved on the water inlet pipe, and the rotating ring and the water inlet pipe are sealed by a sealing bearing, a hollow interlayer is arranged on the inner wall of the rotating ring, a spray head is fixed on the rotating inner wall and the spray head is connected to the hollow interlayer, and a swinging assembly is installed on the rotating ring, and the reciprocating swing of the rotating ring is realized by the swinging assembly.

2. According to claim 1, a precise dosing system for a waste heat power generation circulating water system is characterized in that: The swing assembly includes a rotating impeller, a rotating shaft, a crank rocker mechanism, a translation rod and a pulley, wherein a rotating impeller is arranged in the water inlet pipe, and a rotating shaft is installed on the rotating impeller. The rotating shaft passes through the wall of the water inlet pipe and extends out of the water inlet pipe, and the rotating shaft is connected to the water inlet pipe through a sealed bearing. A crank rocker mechanism is installed at the end of the rotating shaft located outside the water inlet pipe, a sleeve is installed on the outer wall of the water inlet pipe, and a translation rod is inserted in the sleeve, one end of the translation rod is connected to the crank rocker mechanism, and a pulley is installed at the other end of the translation rod, and an inclined groove is installed on the end of the rotating ring facing the pulley, and the end of the translation rod on which the pulley is installed extends into the inclined groove, and its pulley is in contact with the inner wall of the inclined groove, and a reset spring is installed between the rotating ring and the outer wall of the water inlet pipe.

3. According to claim 2, a precise dosing system for a waste heat power generation circulating water system is characterized in that: The spray head is a 90° bent spray head, and the spray head fits the inner wall of the water inlet pipe.

4. According to claim 3, a precise dosing system for waste heat power generation circulating water system is characterized in that: The adjusting component includes a rotating shaft and a cam, wherein a plurality of cams are installed on the rotating shaft through bearings, and counterweight blocks are arranged on both sides of the cams, and the long side of the cam is made to face upward by the counterweight blocks; a sliding track is installed above the rotating shaft, and a sliding block is installed above the sliding track, and reels driven by a motor are arranged on both sides of the sliding track, and the reels and the sliding blocks are connected by a pull rope, and a lifting and pressing component is installed between the bottom of the sliding track and the top of the rotating shaft, and the lifting and pressing component is pressed by the sliding block, and a rotating cylinder is fixed on one side of each cam and the rotating cylinder is coaxial with the rotating shaft, and a limiting rod is inserted into the rotating cylinder, and a compression spring is sleeved on the limiting rod and the compression spring is located in the rotating cylinder, and the limiting rod is pushed outward by the compression spring, and a plurality of grooves arranged opposite to the limiting rod are opened on the rotating shaft, and the limiting rod is pressed by the lifting and pressing assembly, so that the limiting rod extends into the groove to realize the cam rotating with the rotating shaft.

5. According to claim 4, a precise dosing system for waste heat power generation circulating water system is characterized in that: The lifting and pressing assembly includes a mounting frame, a lifting rod and a pressing arc plate. The mounting frame is located below the sliding track. The lifting rod passes through the mounting frame for lifting and lowering. A spring is sleeved on the lifting rod, and the lifting rod is pulled up by the spring. An inclined block is installed at the bottom of the sliding block. The top of the lifting rod contacts the inclined surface of the inclined block, and the lifting rod is pressed downward by the inclined block. A pressing arc plate is installed at the bottom of the lifting rod. The top of the limit rod contacts the inner wall of the arc-shaped pressing plate, and the limit rod is an elastic telescopic rod.

6. According to claim 5, a precise dosing system for waste heat power generation circulating water system is characterized in that: A pre-mixing assembly is installed in each medicine storage box, and the pre-mixing assembly is installed on the medicine drawing tube. A rotating tube is installed at the bottom of the medicine drawing tube through a bearing, and the pre-mixing assembly is installed on the outer wall of the rotating tube. The pre-mixing assembly is a stirring blade and the stirring blade is installed on the outer wall of the rotating tube. A turbine blade is installed in the rotating tube. When the medicine drawing tube draws medicine, the turbine blade drives the rotating cylinder to rotate, thereby achieving stirring.

7. The precise dosing system for waste heat power generation circulating water system according to claim 6 is characterized in that: The cam includes a mounting cylinder, two clamping plates, a pressure-bearing sector block and a mounting ring. The mounting cylinder is mounted on a rotating shaft through a bearing. Two clamping plates are mounted on both sides of the mounting cylinder. Mounting rings are fixed on the inner sides of the two clamping plates. A plurality of bolt holes are opened on the mounting ring. The inner side of the pressure-bearing sector block fits with the outer wall of the mounting ring. The pressure-bearing sector block is locked on the mounting ring by bolts. In this way, different numbers of pressure-bearing sector blocks can be installed according to needs, so as to adjust the time ratio of opening and closing the blocking pipe and the medicine extraction tank.

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