Self-adaptive intelligent disinfectant adding device for water treatment system

Abstract

The invention discloses a self-adaptive intelligent disinfectant adding device for a water treatment system, which belongs to the technical field of water treatment and comprises a disinfection tank, a liquid inlet pipe positioned on the side edge of the disinfection tank and a liquid discharge pipe arranged at the bottom end of the disinfection tank. The compensation adding mechanism is arranged at the top of the disinfection tank, the first guide pipe and the second guide pipe are in sliding sealing fit, reliable sealing is achieved through port dislocation in the initial state, unexpected leakage of a disinfectant is avoided, a heat conduction rod penetrates into the position below the liquid level of the disinfection tank, and liquid temperature changes can be captured in real time; the internal thread pipe can be driven to rotate without extra power by means of the material characteristic that the spiral bimetallic strip deforms along with temperature, then the second guide pipe is controlled to stably ascend and descend along the first guide pipe through meshing transmission with the screw rod, and when the temperature difference value reaches a set threshold value, the internal thread pipe is driven to rotate. The first port and the second port are automatically communicated, so that the disinfectant can be instantly compensated and added, and the disinfection effect is ensured to always meet the expected standard.

Description

TECHNICAL FIELD

[0001] The application relates to a disinfectant dosing device, in particular to a disinfectant self-adaptive intelligent dosing device for a water treatment system, and belongs to the technical field of water treatment. BACKGROUND

[0002] In the field of water treatment, disinfection is a key link to ensure the safety of water quality and block the spread of pathogenic microorganisms, and its effect directly determines the sanitary standard of terminal water. At present, the mainstream disinfection process of water treatment is operated under fixed pH conditions. Although this mode can simplify the operation process, it has poor adaptability to environmental temperature fluctuations, which easily leads to unstable disinfection efficiency.

[0003] Temperature changes will affect the disinfection process from two core dimensions: on the one hand, when the water temperature is too high, it will accelerate the decomposition rate of common disinfectants such as chlorine-containing disinfectants and ozone, resulting in rapid loss of effective disinfectant components and actual concentration lower than the design value; on the other hand, when the water temperature is too low, it will significantly reduce the metabolic activity and cell membrane permeability of microorganisms, making it difficult for disinfectants to quickly penetrate and destroy microbial structures, thereby greatly reducing the disinfection reaction rate.

[0004] In order to alleviate the influence of temperature on disinfection effect, existing water treatment devices have tried to introduce a temperature compensation mechanism, but this mechanism has obvious limitations. It can only adjust the pH value of the system according to temperature changes through a pre-set algorithm to optimize the chemical stability of disinfectants at different temperatures, but it cannot automatically compensate for the addition of disinfectants according to temperature fluctuations. This single compensation mode leads to a mismatch between disinfectant dosing and actual disinfection needs. At high temperatures, disinfectants are consumed quickly but not added, and at low temperatures, the difficulty of microbial inactivation increases without adjusting the dosing strategy, ultimately causing disinfection effect fluctuations and difficulty in stable meeting the dynamic disinfection needs of the water treatment system.

[0005] Therefore, a disinfectant self-adaptive intelligent dosing device for a water treatment system is designed to optimize the above problems. SUMMARY

[0006] The main purpose of the present application is to provide a disinfectant adaptive intelligent dosing device for a water treatment system, which comprises a disinfection tank, a liquid inlet pipe located on the side of the disinfection tank, a liquid outlet pipe opened at the bottom end of the disinfection tank, and a PH sensor installed on the side of the disinfection tank.

[0007] The purpose of the present application can be achieved by adopting the following technical solutions: A disinfectant adaptive intelligent dosing device for a water treatment system, comprising a disinfection tank, a liquid inlet pipe located on the side of the disinfection tank, a liquid outlet pipe opened at the bottom end of the disinfection tank, and a PH sensor installed on the side of the disinfection tank. A support is fixedly installed on the top of the disinfection tank, and a disinfectant storage tank is arranged on one side of the top of the support. A rotary motor is installed at the middle position of the top of the support, a stirring shaft is rotatably installed in the disinfection tank, stirring blades are fixedly installed on the side of the stirring shaft, a connecting mechanism is arranged between the output end of the rotary motor and the stirring shaft, and the stirring shaft is driven to move up and down when rotating horizontally. The quantitative adding mechanism is arranged on the side of the bracket bottom far from the disinfectant storage tank, and the input end and the output end of the quantitative adding mechanism are in communication with the inside of the disinfectant storage tank and the inside of the liquid inlet pipe respectively, and the quantitative adding mechanism is used for adding the disinfectant quantitatively in the normal temperature and the PH setting range. The compensation adding mechanism is arranged on the side of the bracket bottom close to the disinfectant storage tank, the input end of the compensation adding mechanism is in communication with the inside of the disinfectant storage tank, the output end of the compensation adding mechanism is in communication with the inside of the disinfectant tank, and the compensation adding mechanism is used for adding the disinfectant compensatively with the change of the liquid temperature in the disinfectant tank.

[0008] Preferably, the inside of the liquid inlet pipe is provided with a spiral blade extending along the axis direction of the liquid inlet pipe, a ring-shaped partition plate is fixedly installed at the middle position of the inside of the disinfectant tank, the ring-shaped partition plate is funnel-shaped, and the center through hole of the ring-shaped partition plate is in clearance fit with the stirring shaft.

[0009] Preferably, the compensation adding mechanism comprises a first conduit, a first through hole, a second conduit, a second through hole, a compensation pipe and a temperature sensing lifting assembly, the first conduit is fixed on the inner bottom of the disinfectant storage tank, a first through hole is arranged at the middle position of the outside of the first conduit, the inside of the first conduit is vertically slidably provided with the second conduit, the top of the second conduit is provided with a second through hole, the second through hole is provided with two groups and is located at the top and the bottom of the first through hole respectively, the two groups of first through holes and second through holes are collinear, the bottom end of the outside of the second conduit is provided with the compensation pipe in communication with the inside of the disinfectant tank, and the bottom end of the second conduit is provided with the temperature sensing lifting assembly for controlling the lifting of the second conduit with the change of the liquid temperature in the disinfectant tank.

[0010] Preferably, the temperature sensing lifting assembly comprises a hollow column, a heat conduction rod, a spiral bimetallic strip, a rotating rod, an internally threaded pipe and a screw rod, the hollow column is vertically fixed on the disinfectant tank, the bottom end of the hollow column is fixed with the heat conduction rod extending below the liquid level in the disinfectant tank, the top end of the hollow column is rotatably installed with the rotating rod, the heat conduction rod and the rotating rod are fixedly installed with the spiral bimetallic strip, the top end of the rotating rod is fixed with the internally threaded pipe, the internally threaded pipe is internally threadedly installed with the screw rod, and the screw rod is fixedly connected with the second conduit.

[0011] Preferably, the connecting mechanism comprises a shaft sleeve, a spline shaft and an up-down reciprocating assembly, the shaft sleeve is installed on the output end of the rotating motor, the shaft sleeve extends to the inside of the disinfectant tank and is rotatably connected with the disinfectant tank, the bottom end of the shaft sleeve is vertically slidably provided with the spline shaft, the bottom end of the spline shaft is fixedly connected with the stirring shaft, and the shaft sleeve and the spline shaft are provided with the up-down reciprocating assembly therebetween.

[0012] Preferably, the up-and-down reciprocating assembly comprises a bearing, a mounting plate, a slide rod, a guide groove and a guide rod, the bearing is sleeved on the outer side of the spline shaft, the outer ring of the bearing is fixedly provided with the mounting plate, the top of the mounting plate is vertically fixed with the slide rod at both ends, the slide rod vertically slides to the top of the sterilization tank, the outer side of the shaft sleeve is provided with a corrugated guide groove in the circumferential direction, and the guide rod is symmetrically and slidably arranged in the guide groove and fixedly connected with the slide rod.

[0013] Preferably, the top and the bottom of the mounting plate are fixedly provided with sealing covers, the spline shaft passes through the middle of the sealing cover, and the sealing cover covers the surface of the bearing.

[0014] Preferably, the quantitative adding mechanism comprises a cylinder, a piston, a medicine extraction pipe, a medicine discharge pipe, a fixing plate, a cross rod and an extension assembly, the cylinder is fixed at the bottom end of the support, the piston is slidably arranged in the cylinder, the cylinder is provided with the medicine extraction pipe communicated with the inside of the sterilization agent storage tank and the medicine discharge pipe communicated with the inside of the liquid inlet pipe, the medicine extraction pipe is provided with a one-way liquid inlet valve, the medicine discharge pipe is provided with a one-way liquid discharge valve, the fixing plate is fixed between the bottom of the support and the top of the sterilization tank, the cross rod is horizontally slidably arranged on the fixing plate, one end of the cross rod is fixedly connected with the piston, and the other end of the cross rod is provided with the extension assembly.

[0015] Preferably, the extension assembly comprises an eccentric wheel, a sleeve ring and a connecting rod, the eccentric wheel is horizontally fixed on the shaft sleeve, the assembly center of the eccentric wheel is not coincided with the geometric center, the shaft center of the shaft sleeve is coincided with the assembly center of the eccentric wheel, the eccentric wheel is sleeved with the sleeve ring on the outer side, the connecting rod is fixedly arranged on the outer side of the sleeve ring, and the end of the connecting rod is hingedly connected with the cross rod.

[0016] Preferably, the outer side of the eccentric wheel is provided with an annular groove, the inner side of the annular groove is uniformly provided with a plurality of balls in the circumferential direction, the outer side of the ball is matched with the inner wall of the sleeve ring, and the inner wall of the sleeve ring is provided with an annular groove matched with the ball.

[0017] The beneficial effects of the present application are: The application provides a disinfectant self-adaptive intelligent adding device for a water treatment system, which is characterized in that a compensation adding mechanism composed of a first conduit, a first through opening, a second conduit, a second through opening, a compensation pipe, a hollow column, a heat conduction rod, a spiral bimetallic sheet, a rotating rod, an internally threaded pipe and a screw rod is arranged on the top of a disinfection tank; the first conduit and the second conduit are in sliding sealing cooperation; in the initial state, reliable sealing is realized by means of the through opening misalignment, so that unexpected leakage of the disinfectant is avoided; the heat conduction rod is deeply arranged below the liquid level of the disinfection tank, so that the temperature change of the liquid can be captured in real time, and the temperature signal can be accurately transmitted to the spiral bimetallic sheet; the spiral bimetallic sheet is driven to rotate the internally threaded pipe without additional power, depending on the material properties of the spiral bimetallic sheet which deforms with temperature; the internally threaded pipe is engaged with the screw rod to control the second conduit to stably ascend and descend along the first conduit; when the temperature difference reaches a set threshold value, the first through opening and the second through opening are automatically aligned and connected, so that the disinfectant is instantaneously compensated and added, the disinfection effect is prevented from being attenuated and the speed is prevented from being reduced due to temperature abnormalities, manual intervention is not needed, the automation degree and stability of the disinfection process are significantly improved, and the disinfection effect is ensured to meet the expected standard. The connecting mechanism composed of a shaft sleeve, a spline shaft, a bearing, a mounting plate, a sealing cover, a sliding rod, a guide groove and a guide rod is used to drive the stirring shaft to rotate horizontally while driving the stirring shaft to complete reciprocating motion up and down through the guidance and limiting of the mounting plate, the sliding rod and the guide groove, so that the stirring coverage is greatly expanded, the mixing uniformity of the disinfectant and the liquid to be treated is improved, the disinfection effect is prevented from being affected by uneven concentration, the mixing speed is accelerated, and the pretreatment time is shortened. The quantitative adding mechanism composed of a cylinder, a piston, a medicine suction pipe, a medicine discharge pipe, a fixing plate, a cross rod, an eccentric wheel, a sleeve ring, a connecting rod and a ring-shaped groove and balls is used to accurately control the piston stroke through the transmission cooperation of the eccentric wheel, the sleeve ring and the connecting rod and the stable guidance of the ring-shaped groove and the balls to the motion track when the temperature is in a normal range and the PH value meets the set requirement, so that the quantitative addition of the disinfectant is realized; in addition, the quantitative adding mechanism and the connecting mechanism are designed in linkage, so that the quantitative adding mechanism can be synchronously operated without an independent driving source, and the complexity of the equipment driving system is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view of a preferred embodiment of the disinfectant self-adaptive intelligent adding device for the water treatment system. Figure 2 It is a front view of a preferred embodiment of the disinfectant self-adaptive intelligent adding device for the water treatment system. Figure 3 It is a linkage state diagram of the connecting mechanism and the quantitative adding mechanism of a preferred embodiment of the disinfectant self-adaptive intelligent adding device for the water treatment system. Figure 4Exploded view of the connecting mechanism of a preferred embodiment of the disinfectant self-adaptive intelligent dosing device for water treatment system of the present application; Figure 5 Exploded view of the connecting mechanism of a preferred embodiment of the disinfectant self-adaptive intelligent dosing device for water treatment system of the present application; Figure 1 Enlarged view of A in the connecting mechanism of a preferred embodiment of the disinfectant self-adaptive intelligent dosing device for water treatment system of the present application; Figure 6 Exploded view of the quantitative adding mechanism of a preferred embodiment of the disinfectant self-adaptive intelligent dosing device for water treatment system of the present application; Figure 7 Front view of the compensating adding mechanism of a preferred embodiment of the disinfectant self-adaptive intelligent dosing device for water treatment system of the present application; Figure 8 Sectional view of the compensating adding mechanism of a preferred embodiment of the disinfectant self-adaptive intelligent dosing device for water treatment system of the present application; Figure 9 Front view of the second conduit of a preferred embodiment of the disinfectant self-adaptive intelligent dosing device for water treatment system of the present application.

[0019] In the figure: 1, disinfectant tank; 101, annular partition; 2, liquid inlet pipe; 201, helical blade; 3, liquid outlet pipe; 4, PH sensor; 5, support; 6, disinfectant storage tank; 7, rotary motor; 8, stirring shaft; 9, stirring blade; 10, connecting mechanism; 1001, shaft sleeve; 1002, spline shaft; 1003, bearing; 1004, mounting plate; 1005, sealing cover; 1006, slide rod; 1007, guide groove; 1008, guide rod; 11, quantitative adding mechanism; 1101, cylinder body; 1102, piston; 1103, medicine extraction pipe; 1104, medicine discharge pipe; 1105, fixed plate; 1106, crossbar; 1107, eccentric wheel; 1108, collar; 1109, connecting rod; 1110, annular groove; 1111, ball; 12, compensating adding mechanism; 1201, first conduit; 1202, first through hole; 1203, second conduit; 1204, second through hole; 1205, compensating pipe; 1206, hollow column; 1207, heat-conducting rod; 1208, helical bimetallic strip; 1209, rotating rod; 1210, internally threaded pipe; 1211, screw rod. DETAILED DESCRIPTION

[0020] In order to make the person skilled in the art more clearly and explicitly understand the technical solutions of the present application, the present application will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the implementation manner of the present application is not limited thereto.

[0021] Example 1 Figures 1-9 As shown, this embodiment provides an adaptive intelligent dosing device for disinfectant in a water treatment system, including a disinfection tank 1, an inlet pipe 2 located on the side of the disinfection tank 1, a drain pipe 3 opened at the bottom of the disinfection tank 1, and a pH sensor 4 installed on the side of the disinfection tank 1. A bracket 5 is fixedly installed on the top of the disinfection tank 1, and a disinfectant storage tank 6 is provided on one side of the top of the bracket 5; A rotary motor 7 is installed at the middle position of the top of the bracket 5. A stirring shaft 8 is rotatably installed inside the sterilization tank 1. A stirring blade 9 is fixedly installed on the side of the stirring shaft 8. A connecting mechanism 10 is provided between the output end of the rotary motor 7 and the stirring shaft 8 to drive the stirring shaft 8 to move up and down when rotating horizontally. A metering mechanism 11 is provided on the side of the bottom of the support 5 away from the disinfectant storage tank 6. The input end and output end of the metering mechanism 11 are respectively connected to the inside of the disinfectant storage tank 6 and the liquid inlet pipe 2. The metering mechanism 11 is used to add disinfectant in a metered manner within the normal temperature and pH setting range. A compensation and addition mechanism 12 is provided on the side of the bottom of the support 5 near the disinfectant storage tank 6. The input end of the compensation and addition mechanism 12 is connected to the inside of the disinfectant storage tank 6, and the output end of the compensation and addition mechanism 12 is connected to the inside of the disinfection tank 1. It is used to compensate and add disinfectant according to the temperature change of the liquid in the disinfection tank 1.

[0022] Overall working principle: The liquid to be treated enters the disinfection tank 1 through the inlet pipe 2. The pH sensor 4 monitors the pH value of the liquid in the disinfection tank 1 in real time. At the same time, the device uses the temperature sensing component inside the compensation addition mechanism 12 to synchronously monitor the liquid temperature, which is within the normal range (10-35℃) and the pH range (6.5-7.0). When the liquid temperature is detected to be within the normal range and the pH value meets the set requirements, the rotary motor 7 is started. The output of the rotary motor 7 drives the connecting mechanism 10 to operate. The connecting mechanism 10 drives the stirring shaft 8 to rotate horizontally, and the stirring shaft 8 drives the stirring blades 9 to rotate, stirring the liquid to be treated in the disinfection tank 1. On the other hand, the connecting mechanism 10 is linked to the quantitative addition mechanism 11 to operate. The quantitative addition mechanism 11 draws a quantitative amount of disinfectant from the disinfectant storage tank 6 and injects it into the inlet pipe 2. Since the inlet pipe 2 is always in the liquid inlet state, the disinfectant mixes with the liquid to be treated through the inlet pipe 2 and enters the disinfection tank 1 together. If the temperature of the liquid in disinfection tank 1 is detected to be outside the normal range (too high or too low), the compensation and addition mechanism 12 will automatically start, drawing disinfectant from the disinfectant storage tank 6 and directly delivering it into disinfection tank 1 to achieve the compensation and addition of disinfectant. The stirring blades 9 continuously stir to ensure that the disinfectant and the liquid to be treated are fully mixed. After disinfection is completed, the treated liquid is discharged through the drain pipe 3.

[0023] The scheme in Embodiment 1 is further described below in combination with a specific working mode, and details are described below: In this embodiment, the inside of the liquid inlet pipe 2 is provided with a spiral blade 201 extending along the axial direction of the liquid inlet pipe 2, and a ring-shaped partition plate 101 is fixedly installed at the middle position inside the sterilization tank 1, and the shape of the ring-shaped partition plate 101 is funnel-shaped, and the center through hole of the ring-shaped partition plate 101 is in clearance fit with the stirring shaft 8.

[0024] Partial working principle: when the liquid to be treated flows through the liquid inlet pipe 2, the spiral blade 201 inside the liquid inlet pipe 2 rotates synchronously with the liquid flow, which plays a preliminary stirring and mixing effect on the liquid, avoiding the situation that the liquid appears local concentration uneven; after the liquid enters the sterilization tank 1, the funnel-shaped ring-shaped partition plate 101 inside the sterilization tank 1 plays a blocking and flow guiding effect on the liquid, increases the mixing time of the liquid inside the sterilization tank 1, and improves the mixing effect, and at the same time, the center through hole of the ring-shaped partition plate 101 is in clearance fit with the stirring shaft 8, which does not affect the rotation and up-down movement of the stirring shaft 8, and can also reduce the vortex generated during the stirring of the liquid, and improve the stirring efficiency.

[0025] In this embodiment, the compensation adding mechanism 12 includes a first conduit 1201, a first opening 1202, a second conduit 1203, a second opening 1204, a compensation pipe 1205, and a temperature sensing lifting assembly, the first conduit 1201 is fixedly installed at the inner bottom of the sterilizing agent storage tank 6, and a first opening 1202 is formed at the middle position of the outer side of the first conduit 1201, a second conduit 1203 is vertically slidably arranged inside the first conduit 1201, a second opening 1204 is formed at the top of the second conduit 1203, the second opening 1204 is formed in two groups and located at the top and bottom of the first opening 1202 respectively, and the two groups of first openings 1202 and second openings 1204 are collinear, and the bottom end of the outer side of the second conduit 1203 is provided with a compensation pipe 1205 in communication with the inside of the sterilization tank 1, and the bottom end of the second conduit 1203 is provided with a temperature sensing lifting assembly for controlling the lifting of the second conduit 1203 with the change of the liquid temperature in the sterilization tank 1.

[0026] Partial working principle: in the initial state, the first opening 1202 of the first conduit 1201 and the second opening 1204 of the second conduit 1203 are misaligned to achieve sealing and prevent unintended leakage of the sterilizing agent, when the temperature sensing lifting assembly senses that the temperature difference reaches the set threshold value, it will control the movement of the second conduit 1203 (the second conduit 1203 moves downward in low temperature state, and the second conduit 1203 moves upward in high temperature state), which will connect the first opening 1202 and the second opening 1204, and inject the sterilizing agent in the sterilizing agent storage tank 6 into the inside of the sterilization tank 1, and control the size of the overlap between the first opening 1202 and the second opening 1204 according to the size of the temperature difference, so as to change the rate of sterilizing liquid delivery.

[0027] In the embodiment, the temperature-sensing lifting assembly includes a hollow column 1206, a heat-conducting rod 1207, a spiral bimetallic strip 1208, a rotating rod 1209, an internally-threaded pipe 1210, and a screw rod 1211. The hollow column 1206 is vertically fixed on the sterilizing tank 1. The bottom end of the hollow column 1206 is fixed with the heat-conducting rod 1207 extending to below the liquid level inside the sterilizing tank 1. The top end of the hollow column 1206 is rotatably installed with the rotating rod 1209. The heat-conducting rod 1207 and the rotating rod 1209 are fixedly installed with the spiral bimetallic strip 1208. The top end of the rotating rod 1209 is fixed with the internally-threaded pipe 1210. The internally-threaded pipe 1210 is internally-threaded with the screw rod 1211. The screw rod 1211 is fixedly connected with the second conduit 1203.

[0028] Local working principle: when the temperature of the liquid in the sterilizing tank 1 changes, the heat-conducting rod 1207 at the bottom end of the hollow column 1206 transmits the temperature signal to the spiral bimetallic strip 1208. The spiral bimetallic strip 1208 deforms due to the temperature change. The spiral bimetallic strip 1208 is made of brass (outer layer) and invar (inner layer) by composite rolling. The rotating rod 1209 is rotated at the top end of the hollow column 1206. The torque generated by the spiral bimetallic strip 1208 due to the temperature difference is specifically realized by adjusting the number of spiral turns and the thickness of the spiral bimetallic strip 1208. The rotating rod 1209 drives the internally-threaded pipe 1210 to rotate synchronously. The internally-threaded pipe 1210 is threadedly matched with the screw rod 1211, so that the screw rod 1211 drives the second conduit 1203 to vertically slide along the first conduit 1201. When the temperature difference reaches the set threshold value, the first opening 1202 and the second opening 1204 are conducted. The sterilizing agent in the sterilizing agent storage tank 6 enters the sterilizing tank 1 through the first conduit 1201, the second conduit 1203, and the compensating pipe 1205, so as to realize the compensation and addition of the sterilizing liquid. When the temperature of the liquid in the sterilizing tank 1 deviates from the normal range (10-35℃) ±5℃, the high temperature needs 10%-20%, and the low temperature needs only 5%-15%.

[0029] In the embodiment, the connecting mechanism 10 includes a shaft sleeve 1001, a spline shaft 1002, and an up-and-down reciprocating assembly. The shaft sleeve 1001 is installed at the output end of the rotary motor 7 and extends to the inside of the sterilizing tank 1 and is rotatably connected with the sterilizing tank 1. The bottom end of the shaft sleeve 1001 is vertically slidably provided with the spline shaft 1002. The bottom end of the spline shaft 1002 is fixedly connected with the stirring shaft 8. The shaft sleeve 1001 and the spline shaft 1002 are provided with the up-and-down reciprocating assembly therebetween.

[0030] Local working principle: during the stirring process, the output end of the rotary motor 7 drives the shaft sleeve 1001 to rotate. The shaft sleeve 1001 drives the spline shaft 1002 to rotate through spline cooperation. The spline shaft 1002 drives the stirring shaft 8 to horizontally rotate. At the same time, the up-and-down reciprocating assembly is used to move up and down during the horizontal rotation of the stirring shaft 8, so as to improve the stirring and mixing rate.

[0031] In the embodiment, the up-down reciprocating assembly comprises a bearing 1003, a mounting plate 1004, a slide rod 1006, a guide groove 1007 and a guide rod 1008, the bearing 1003 is sleeved and mounted on the outer side of the spline shaft 1002, the outer ring of the bearing 1003 is fixedly mounted with the mounting plate 1004, both ends of the top of the mounting plate 1004 are vertically fixed with the slide rod 1006, the slide rod 1006 vertically slides to the top of the sterilization tank 1, the outer side of the shaft sleeve 1001 is provided with a corrugated guide groove 1007 in the circumferential direction, the guide groove 1007 is symmetrically and slidably provided with the guide rod 1008, and the guide rod 1008 is fixedly connected with the slide rod 1006.

[0032] The local working principle is as follows: in the stirring process, the corrugated guide groove 1007 on the outer side of the shaft sleeve 1001 rotates with the shaft sleeve 1001, the guide rod 1008 in the guide groove 1007 is guided to drive the slide rod 1006 to vertically slide, the slide rod 1006 is fixed on the mounting plate 1004, the mounting plate 1004 is connected with the spline shaft 1002 through the bearing 1003, therefore the slide rod 1006 drives the mounting plate 1004 and the bearing 1003 to synchronously vertically move, and then drives the spline shaft 1002 and the stirring shaft 8 to reciprocate up and down, so that the composite motion of the horizontal rotation and the up-down movement of the stirring shaft 8 is realized.

[0033] In the embodiment, the top and the bottom of the mounting plate 1004 are fixed with sealing covers 1005, the spline shaft 1002 passes through the middle of the sealing cover 1005, and the sealing cover 1005 covers the surface of the bearing 1003.

[0034] The local working principle is as follows: the sealing cover 1005 covers the surface of the bearing 1003 to prevent liquid from invading the bearing 1003 and affecting the operation thereof.

[0035] In the embodiment, the quantitative adding mechanism 11 comprises a cylinder body 1101, a piston 1102, a medicine suction pipe 1103, a medicine discharge pipe 1104, a fixed plate 1105, a cross rod 1106 and a telescopic assembly, the cylinder body 1101 is fixed at the bottom end of the support 5, the piston 1102 is slidably arranged in the cylinder body 1101, the cylinder body 1101 is provided with the medicine suction pipe 1103 communicated with the inside of the sterilization agent storage tank 6 and the medicine discharge pipe 1104 communicated with the inside of the liquid inlet pipe 2, the medicine suction pipe 1103 is provided with a one-way liquid inlet valve, the medicine discharge pipe 1104 is provided with a one-way liquid discharge valve, the fixed plate 1105 is fixed between the bottom of the support 5 and the top of the sterilization tank 1, the cross rod 1106 is slidably arranged on the fixed plate 1105, one end of the cross rod 1106 is fixedly connected with the piston 1102, and the other end of the cross rod 1106 is provided with the telescopic assembly.

[0036] Local working principle: in the normal temperature (10-35℃) and PH range (6.5-7.0), the telescopic assembly pulls the horizontal rod 1106 to slide on the fixed plate 1105, and the horizontal rod 1106 drives the piston 1102 to reciprocate in the cylinder body 1101. When the piston 1102 moves away from the medicine suction pipe 1103, a negative pressure is formed in the cylinder body 1101, the one-way liquid inlet valve on the medicine suction pipe 1103 opens, and the disinfectant enters the cylinder body 1101 from the disinfectant storage tank 6; when the piston 1102 moves towards the medicine suction pipe 1103, the pressure in the cylinder body 1101 increases, the one-way liquid inlet valve on the medicine discharge pipe 1104 opens, and the disinfectant is transported to the liquid inlet pipe 2 through the medicine discharge pipe 1104. Through precise control of the piston 1102 stroke, the disinfectant is added quantitatively.

[0037] In the embodiment, the telescopic assembly includes an eccentric wheel 1107, a sleeve ring 1108 and a connecting rod 1109, the eccentric wheel 1107 is horizontally fixed on the shaft sleeve 1001, the assembly center of the eccentric wheel 1107 is not coincided with the geometric center, the shaft center of the shaft sleeve 1001 is coincided with the assembly center of the eccentric wheel 1107, the sleeve ring 1108 is sleeved and installed on the outer side of the eccentric wheel 1107, the connecting rod 1109 is fixedly installed on the outer side of the sleeve ring 1108, and the end of the connecting rod 1109 is hinged with the horizontal rod 1106.

[0038] Local working principle: when the shaft sleeve 1001 rotates to drive the eccentric wheel 1107 to rotate synchronously, the sleeve ring 1108 on the outer side of the eccentric wheel 1107 moves along the eccentric trajectory of the eccentric wheel 1107, the sleeve ring 1108 drives the connecting rod 1109 to reciprocate, the connecting rod 1109 pulls the horizontal rod 1106 to slide horizontally on the fixed plate 1105, thereby realizing quantitative addition of disinfectant; The cylinder 1101 volume of the quantitative adding mechanism 11 is set to 5 mL, the piston 1102 stroke range is 0-4 mm, corresponding to the maximum dosage of disinfectant 0.5 mL / time, the eccentric distance of the eccentric wheel 1107 is designed to be 1.6 mm, when the shaft sleeve 1001 drives the eccentric wheel 1107 to rotate one circle, the sleeve ring 1108 pulls the horizontal rod 1106 to move horizontally by 3.2 mm through the connecting rod 1109, and the single-time dosage of disinfectant is 0.2 mL; when 10% available chlorine sodium hypochlorite is used as the disinfectant, 10% sodium hypochlorite solution means that 10 g of available chlorine is contained in 100 g of solution, because the solution density is close to water (about 1 g / mL), it can be approximately considered that the volume of 100 g of solution is 100 mL, therefore 10 g / 100 mL is converted to 100 g / L, and then converted to mg / L unit, which is 100000 mg / L, the total dosage rate = 0.2 mL / time X 25 times / min = 5 mL / min, which matches the rated flow of the inlet pipe 2 (100 L / min), and the mixing concentration = (5 mL / min X 100000 mg / L) ÷ 100 L / min = 5 mg / L, which ensures that when 10% available chlorine sodium hypochlorite is used as the disinfectant, the mixing concentration is stable at 5 mg / L, and the mixing concentration is stable at 5 mg / L (in line with GB 5749-2022 “Drinking Water Health Standards”), if it is necessary to adjust the dosage, the eccentric wheel 1107 with different eccentric distances can be replaced.

[0039] In the embodiment, the outer side of the eccentric wheel 1107 is provided with an annular groove 1110, the inner side of the annular groove 1110 is uniformly provided with a plurality of balls 1111 in the circumferential direction, the outer side of the ball 1111 is attached to the inner wall of the sleeve ring 1108, and the inner wall of the sleeve ring 1108 is provided with an annular groove matched with the ball 1111.

[0040] Local working principle: through the use of the ball 1111, the sliding friction between the eccentric wheel 1107 and the sleeve ring 1108 is converted into rolling friction, the friction loss is reduced, and the stability of movement is ensured.

[0041] The schemes in the embodiment 1 and the embodiment 2 will be further introduced in combination with specific working modes, and details are described below: The liquid to be treated enters through the inlet pipe 2, the spiral blade 201 in the inlet pipe 2 preliminarily mixes the liquid, and the liquid uniformly enters the disinfection tank 1 after being guided by the annular baffle 101. The PH sensor 4 monitors the PH value, and the temperature is monitored by the heat conduction rod 1207. If the temperature is normal and the PH meets the requirements: the rotating motor 7 is started, the shaft sleeve 1001 drives the spline shaft 1002 and the stirring shaft 8 to rotate, at the same time, the guide groove 1007, the guide rod 1008 and the slide rod 1006 drive the stirring shaft 8 to move up and down, and the stirring blade 9 realizes composite stirring; at the same time, the shaft sleeve 1001 drives the eccentric wheel 1107 to rotate, through the sleeve ring 1108, the connecting rod 1109 and the cross rod 1106, the piston 1102 is driven to reciprocate, the quantitative adding mechanism 11 draws the disinfectant from the disinfectant tank 6, mixes with the liquid through the medicine discharging pipe 1104 and the liquid inlet pipe 2, and then enters the disinfection tank 1 to be fully mixed by the stirring blade 9, and finally is discharged from the liquid discharging pipe 3 after disinfection.

[0042] If the temperature is abnormal: the spiral bimetallic strip 1208 of the compensation adding mechanism 12 is deformed due to the temperature signal transmitted by the heat conduction rod 1207, drives the rotating rod 1209 and the inner threaded pipe 1210 to rotate, the screw rod 1211 drives the second conduit 1203 to slide, the first through hole 1202 is communicated with the second through hole 1204, the disinfectant enters the disinfection tank 1 through the compensation pipe 1205, and the disinfectant is added quantitatively to ensure the disinfection effect; at the same time, the stirring shaft 8 continuously realizes composite stirring to ensure that the disinfectant and the liquid are uniformly mixed, and finally the treated liquid is discharged from the liquid discharging pipe 3.

[0043] The above is only a further embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and concept of the present application within the disclosed range, which belongs to the protection scope of the present application.

Claims

1. An adaptive intelligent dosing device for disinfectant in a water treatment system, comprising a disinfection tank (1), an inlet pipe (2) located on the side of the disinfection tank (1), a drain pipe (3) opened at the bottom of the disinfection tank (1), and a pH sensor (4) installed on the side of the disinfection tank (1). Its features are: A bracket (5) is fixedly installed on the top of the disinfection tank (1), and a disinfectant storage tank (6) is provided on one side of the top of the bracket (5). A rotary motor (7) is installed at the middle position of the top of the bracket (5). A stirring shaft (8) is installed inside the sterilization tank (1). A stirring blade (9) is fixedly installed on the side of the stirring shaft (8). A connecting mechanism (10) is provided between the output end of the rotary motor (7) and the stirring shaft (8) to drive the stirring shaft (8) to move up and down when rotating horizontally. A quantitative addition mechanism (11) is provided on the side of the bottom of the bracket (5) away from the disinfectant storage tank (6). The input end and output end of the quantitative addition mechanism (11) are respectively connected to the inside of the disinfectant storage tank (6) and the liquid inlet pipe (2). The quantitative addition mechanism (11) is used to add disinfectant quantitatively within the normal temperature and pH setting range. A compensation and addition mechanism (12) is provided on the side of the bottom of the support (5) near the disinfectant storage tank (6). The input end of the compensation and addition mechanism (12) is connected to the inside of the disinfectant storage tank (6), and the output end of the compensation and addition mechanism (12) is connected to the inside of the disinfection tank (1). It is used to compensate and add disinfectant according to the temperature change of the liquid in the disinfection tank (1).

2. The adaptive intelligent dosing device for disinfectant in a water treatment system according to claim 1, characterized in that: The inlet pipe (2) is equipped with a spiral blade (201) inside. The spiral blade (201) extends along the axial direction of the inlet pipe (2). An annular partition (101) is fixedly installed in the middle position inside the disinfection tank (1). The annular partition (101) is funnel-shaped. The central through hole of the annular partition (101) is in clearance fit with the stirring shaft (8).

3. The adaptive intelligent dosing device for disinfectant in a water treatment system according to claim 1, characterized in that: The compensation and addition mechanism (12) includes a first conduit (1201), a first port (1202), a second conduit (1203), a second port (1204), a compensation tube (1205), and a temperature-sensing and lifting assembly. The first conduit (1201) is fixed to the inner bottom of the disinfectant storage tank (6), and the first port (1202) is provided at the middle position of the outer side of the first conduit (1201). The second conduit (1203) is vertically slidably arranged inside the first conduit (1201). The top of the first port (1204) is provided with a second port (1204). The second port (1204) has two sets located at the top and bottom of the first port (1202) respectively. The two sets of first ports (1202) and second ports (1204) are collinear. The bottom of the outer side of the second conduit (1203) is provided with a compensation pipe (1205) that is connected to the inside of the disinfection tank (1). The bottom of the second conduit (1203) is provided with a temperature sensing and lifting component, which is used to control the lifting and lowering of the second conduit (1203) according to the temperature change of the liquid inside the disinfection tank (1).

4. The adaptive intelligent dosing device for disinfectant in a water treatment system according to claim 3, characterized in that: The temperature-sensing lifting assembly includes a hollow column (1206), a heat-conducting rod (1207), a spiral bimetallic strip (1208), a rotating rod (1209), an internally threaded tube (1210), and a screw (1211). The hollow column (1206) is vertically fixed on the sterilization tank (1). The bottom end of the hollow column (1206) is fixed with a heat-conducting rod (1207) extending to below the liquid level inside the sterilization tank (1). The top end of the hollow column (1206) is rotatably mounted with a rotating rod (1209). A spiral bimetallic strip (1208) is fixed between the heat-conducting rod (1207) and the rotating rod (1209). The top end of the rotating rod (1209) is fixed with an internally threaded tube (1210). The internal thread of the internally threaded tube (1210) is fitted with a screw (1211). The screw (1211) is fixedly connected to the second conduit (1203).

5. The adaptive intelligent dosing device for disinfectant in a water treatment system according to claim 1, characterized in that: The connecting mechanism (10) includes a bushing (1001), a splined shaft (1002), and a reciprocating assembly. The bushing (1001) is installed at the output end of the rotary motor (7) and extends into the interior of the sterilization tank (1) and is rotatably connected to the sterilization tank (1). The bottom end of the bushing (1001) is vertically slidably provided with the splined shaft (1002). The bottom end of the splined shaft (1002) is fixedly connected to the stirring shaft (8). A reciprocating assembly is provided between the bushing (1001) and the splined shaft (1002).

6. The adaptive intelligent dosing device for disinfectant in a water treatment system according to claim 5, characterized in that: The reciprocating assembly includes a bearing (1003), a mounting plate (1004), a slide rod (1006), a guide groove (1007), and a guide rod (1008). The bearing (1003) is sleeved and installed on the outside of the splined shaft (1002). The mounting plate (1004) is fixedly installed on the outer ring of the bearing (1003). The slide rod (1006) is vertically fixed at both ends of the top of the mounting plate (1004). The slide rod (1006) slides vertically to the top of the sterilization tank (1). The outer side of the bushing (1001) is provided with a corrugated guide groove (1007) along the circumferential direction. The guide rod (1008) is symmetrically slidably arranged inside the guide groove (1007). The guide rod (1008) is fixedly connected to the slide rod (1006).

7. The adaptive intelligent dosing device for disinfectant in a water treatment system according to claim 6, characterized in that: The top and bottom of the mounting plate (1004) are fixed with sealing caps (1005), the spline shaft (1002) passes through the middle of the sealing cap (1005), and the sealing cap (1005) covers the surface of the bearing (1003).

8. The adaptive intelligent dosing device for disinfectant in a water treatment system according to claim 5, characterized in that: The quantitative addition mechanism (11) includes a cylinder (1101), a piston (1102), a suction pipe (1103), a discharge pipe (1104), a fixing plate (1105), a crossbar (1106), and a telescopic assembly. The cylinder (1101) is fixed to the bottom of the bracket (5). The piston (1102) is slidably installed inside the cylinder (1101). The end of the cylinder (1101) is equipped with a suction pipe (1103) that communicates with the inside of the disinfectant storage tank (6) and a discharge pipe that communicates with the inside of the disinfectant storage tank (6). The inlet pipe (2) has a discharge pipe (1104) inside, the suction pipe (1103) is equipped with a one-way inlet valve, the discharge pipe (1104) is equipped with a one-way discharge valve, the bottom of the bracket (5) is fixed between the bottom and the top of the disinfection tank (1) and a fixing plate (1105) is fixed. A horizontal bar (1106) is horizontally slidably installed on the fixing plate (1105). One end of the horizontal bar (1106) is fixedly connected to the piston (1102), and the other end of the horizontal bar (1106) is equipped with a telescopic component.

9. The adaptive intelligent dosing device for disinfectant in a water treatment system according to claim 8, characterized in that: The telescopic assembly includes an eccentric wheel (1107), a collar (1108), and a connecting rod (1109). The eccentric wheel (1107) is horizontally fixed on the bushing (1001). The assembly center of the eccentric wheel (1107) does not coincide with the geometric center. The axis of the bushing (1001) coincides with the assembly center of the eccentric wheel (1107). A collar (1108) is sleeved on the outer side of the eccentric wheel (1107). A connecting rod (1109) is fixedly installed on the outer side of the collar (1108), and the end of the connecting rod (1109) is hinged to the crossbar (1106).

10. The adaptive intelligent dosing device for disinfectant in a water treatment system according to claim 9, characterized in that: An annular groove (1110) is provided on the outer side of the eccentric wheel (1107). Balls (1111) are evenly arranged in the circumferential direction inside the annular groove (1110). The outer side of the ball (1111) fits against the inner wall of the collar (1108), and the inner wall of the collar (1108) is provided with an annular groove that mates with the ball (1111).

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