Automatic centrifugal pretreatment device for water quality testing

Abstract

The invention discloses an automatic centrifugal pretreatment device for water quality detection, comprising a shell, a water inlet, a water outlet, a rotary mechanism, a centrifugal mechanism, a controller and a pipeline, wherein the water inlet, the water outlet, the rotary mechanism and the centrifugal mechanism are fixedly connected to the shell, the water inlet is connected to the rotary mechanism through a pipeline, the rotary mechanism is connected to the water outlet through a pipeline, and the rotary mechanism cooperates with the centrifugal mechanism; the rotary mechanism comprises a lifting member, a rotating member, a position sensing member and a connecting pipe, the lifting member is fixedly connected to the rotating member, the rotating member is connected to the position sensing member, and the connecting pipe is connected to the pipeline; the centrifugal mechanism comprises a centrifuge, a power member, a cover door and a centrifugal cup, the centrifugal cup is fixed inside the centrifuge, the position sensor cooperates with the centrifugal cup, the connecting pipe cooperates with the centrifugal cup, the power member is fixedly connected to the shell, and the power member is connected to the cover door.

Description

Technical Field

[0001] The invention belongs to the field of water quality detection instruments, in particular to an automatic centrifugal pretreatment device for water quality detection. Background Art

[0002] The mainstream brands of total phosphorus automatic monitoring instruments used in water quality automatic monitoring stations generally use ammonium molybdate spectrophotometry for analysis principles. The method is consistent with the manual monitoring method, but there are certain differences between the digestion process and the water sample pretreatment process and the laboratory method. The difference in the process leads to differences in the test results, especially when the turbidity in the water is high, the automatic monitoring results of parameters such as total phosphorus will be significantly affected by the turbidity, and generally show a positive correlation. Therefore, there is a lack of a pretreatment device that can quickly reduce the turbidity of water samples without changing the water quality components. Summary of the invention

[0003] The invention adds an automatic lifting mechanism and a rotating mechanism with a rotating proofreading device on the basis of a centrifuge, injects source water to be tested into the centrifuge for centrifugation through a connecting pipe, automatically extracts the separated centrifuged water through the connecting pipe for analysis, and then discharges the waste water, thereby realizing the automated water treatment of the entire source water, which is simple and efficient.

[0004] In order to solve the above problems, the present invention proposes an automatic centrifugal pretreatment device for water quality detection.

[0005] The technical solution adopted by the present invention is:

[0006] An automatic centrifugal pretreatment device for water quality detection comprises a shell, a water inlet, a water outlet, a rotary mechanism, a centrifugal mechanism, a controller and a pipeline, wherein the water inlet, the water outlet, the rotary mechanism and the centrifugal mechanism are fixedly connected to the shell, the water inlet is connected to the rotary mechanism through a pipeline, the rotary mechanism is connected to the water outlet through a pipeline, and the rotary mechanism cooperates with the centrifugal mechanism; the rotary mechanism comprises a lifting member, a rotating member, a position sensing member and a connecting pipe, the lifting member is fixedly connected to the rotating member, the rotating member is connected to the position sensing member, and the connecting pipe is connected to the pipeline; the centrifugal mechanism comprises a centrifuge, a power member, a cover door and a centrifugal cup, the centrifugal cup is fixed inside the centrifuge, the position sensing member cooperates with the centrifugal cup, the connecting pipe cooperates with the centrifugal cup, the power member is fixedly connected to the shell, the power member is connected to the cover door, the cover door is located above the centrifuge, and the cover door can separate the connecting pipe and the centrifugal cup under the drive of the power member; the controller is connected and communicates with the water inlet, the water outlet, the lifting member, the rotary member, the position sensing member, the power member and the centrifuge. On the basis of the centrifuge, an automatic lifting mechanism and a rotating mechanism with a rotating proofreading device are added. The source water to be tested is injected into the centrifuge through a connecting pipe, and the separated centrifuged water is automatically pumped out through the connecting pipe for analysis. Then the waste water is discharged, thus realizing the automated water treatment of the entire source water. The operation efficiency is high and the time consumption period is short. It can realize online and timely monitoring of surface water and improve the early warning efficiency.

[0007] Furthermore, the lifting member includes an elevator, a fixed plate and a lifting plate, the fixed plate is fixed in the housing, the fixed plate fixes the elevator, the elevator is connected to the lifting plate, and the lifting plate is movably connected to the fixed plate. The elevator drives the lifting plate to move on the fixed plate, and the lifting plate can be ensured to move along a straight line while adjusting the movement stroke through the elevator, so that the connecting pipe can not only penetrate into the bottom of the centrifugal cup to fully absorb the waste liquid, but also ensure that the connecting pipe can pump away the upper layer of centrifugal water without extracting the waste liquid at the bottom.

[0008] Preferably, the rotating member includes a rotating machine and a rotating plate, the lifting plate fixes the rotating machine, the rotating machine is connected to the rotating plate, and the rotating plate fixes the position sensor and the connecting tube. The rotating machine drives the rotating plate to rotate, and the position sensor senses the position of the centrifuge cup, which can ensure that after the centrifuge is centrifuged, the uncertain position of the centrifuge cup is detected, and the connection tube and the centrifuge cup are matched.

[0009] Preferably, the lifting member further comprises a height sensor, which is fixedly connected to the lifting plate. The height of the lifting member is sensed by the height sensor to judge the height of the lifting plate relative to the centrifuge, which is then converted into the height of the connecting tube relative to the centrifuge cup, so as to facilitate the control of the operation of the lifter.

[0010] Furthermore, it also includes a water inlet pipe and a water outlet pipe, the water inlet pipe is connected to the water inlet part, the water outlet pipe is connected to the water outlet part, the water inlet pipe includes a source water pipe and a clean water pipe, and the water outlet pipe includes a waste water pipe and a centrifugal water pipe.

[0011] Further, the centrifugal mechanism further comprises a vertically arranged left slide, a vertically arranged right slide and a lower slide, the cover door comprises a left cover door and a right cover door, the power member comprises a left power rod, a left cylinder, a right power rod and a right cylinder, the left slide and the right slide are arranged vertically and arranged on both sides of the shell, the two ends of the lower slide are respectively connected to the bottom of the left slide and the right slide, the upper part of the left cover door is connected to the left slide, the lower part of the left cover door is connected to the lower slide, the upper part of the right cover door is connected to the right slide, the lower part of the right cover door is connected to the lower slide, the left cylinder is connected to the upper part of the left power rod, the lower part of the left power rod is hinged to the left cover door, the right cylinder is connected to the upper part of the right power rod, and the lower part of the right power rod is hinged to the right cover door. The cover door can be driven by the power member to move along the slide, so that the cover door covers or exposes the centrifuge, and it is ensured that the connecting pipe will not interfere when it is lifted or lowered. When the connecting pipe is in place, foreign matter cannot enter the centrifuge, thereby improving the detection accuracy of the detection result.

[0012] Furthermore, it also includes a horizontally arranged slide groove, the cover door includes a left cover door, a right cover door and a rotating shaft, one side of the left cover door is slidably matched with the slide groove, the other side of the left cover door is connected to the right cover door, the right cover door is connected to the rotating shaft, and the rotating shaft is connected to the power part.

[0013] Furthermore, the cover door includes a left cover door, a right cover door, a left rotating shaft and a right rotating shaft, and the power part includes a left rotating motor and a right rotating motor. The left rotating motor is connected to the left rotating shaft, and the left rotating shaft is fixedly connected to one side of the left cover door. The right rotating motor is connected to the right rotating shaft, and the right rotating shaft is fixedly connected to one side of the right cover door.

[0014] Compared with the prior art, the present invention has the following advantages and effects:

[0015] 1. On the basis of the centrifuge, the present invention adds an automatic lifting mechanism and a rotating mechanism with a rotating proofreading device, uses a connecting pipe to inject the source water to be tested into the centrifuge for centrifugation, and automatically extracts the separated centrifuged water through the connecting pipe for analysis, and then discharges the waste water, thereby realizing the automated water treatment of the entire source water, with high operating efficiency and a short time cycle, and can realize online and timely monitoring of surface water, thereby improving early warning efficiency.

[0016] 2. The present invention adds a centrifuge door above the centrifuge. The cover door can be moved along the slide groove by the drive of the motor to cover or expose the centrifuge, ensuring that the connecting pipe will not interfere when it is raised or lowered. When the connecting pipe is in place, foreign matter cannot enter the centrifuge, thereby improving the detection accuracy of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0018] Figure 1 is a schematic diagram of embodiment 1 of the present invention;

[0019] Figure 2 yes Figure 1 Schematic diagram of the internal structure;

[0020] Figure 3 yes Figure 2 A front view of

[0021] Figure 4 is an internal schematic diagram of Embodiment 2 of the present invention;

[0022] Figure 5 is an internal schematic diagram of Embodiment 3 of the present invention;

[0023] Figure 6 It is a schematic diagram of the lifting member and the rotating member of the present invention;

[0024] Figure 7 It is a piping diagram of the present invention.

[0025] Description of labels:

[0026] Shell 1; centrifuge 2; water inlet pipe 3; water outlet pipe 4; centrifuge cup 5; left cover door 6;

[0027] Left power rod 7; left slide 8; right cover door 9; right power rod 10; right slide 11;

[0028] Downward slide groove 12; left cylinder 13; right cylinder 14; connecting pipe 15; position sensor 16;

[0029] Rotating plate 17; pulley 18; rotating machine 19; lifting machine 20; fixed plate 21; lifting plate 22;

[0030] Height sensor 23; water outlet pump 24; water inlet pump 25; left rotation motor 26; right rotation motor 27;

[0031] Rotating motor 28; slideway 29; track 30; slider 31; lead screw 32. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] Embodiment 1:

[0034] like Figure 1 , 2, 3, and 6, an automatic centrifugal pretreatment device for water quality detection includes a shell 1, a centrifuge 2, a water inlet pipe 3, a water outlet pipe 4, a centrifugal cup 5, a left cover door 6, a left power rod 7, a left slide 8, a right cover door 9, a right power rod 10, a right slide 11, a lower slide 12, a left cylinder 13, a right cylinder 14, a connecting pipe 15, a position sensor 16, a rotating plate 17, a pulley 18, a rotating machine 19, a lifter 20, a fixed plate 21, a lifting plate 22, a height sensor 23, a water outlet pump 24, and a water inlet pump 25. The water inlet pipe 3, the water outlet pipe 4, the left power rod 7, the left slide 8, the right cover door 9, the right power rod 10, the right slide 11, the lower slide 12, the left cylinder 13, the right cylinder 14, the connecting pipe 15, the position sensor 16, the rotating plate 17, the pulley 18, the rotating machine 19, the lifter 20, the fixed plate 21, the lifting plate 22, the height sensor 23, the water outlet pump 24, and the water inlet pump 25 are fixed inside the shell 1 by bolts. 7, left slide 8, right cover door 9, right power rod 10, right slide 11, left cylinder 13, right cylinder 14 and fixed plate 21, the water inlet pipe 3 is connected with the water inlet pump 25 through a pipeline, the water inlet pump 25 is connected with the water inlet valve of the connecting pipe 15 through a pipeline, the water outlet pump 24 is also connected with the water outlet valve of the connecting pipe 15 through a pipeline, the water outlet pipe 4 is connected with the water outlet pump 24 through a pipeline, the water outlet pump 24 and the water inlet pump 25 are installed on the top of the shell 1; the fixed plate 21 is installed in the middle of the shell 1, and the rotating machine 19 is installed on the top of the fixed plate 21, the rotating machine 19 is connected to the lead screw 32, the lead screw nut is fixed to the lifting plate 22, and the lifting plate 22 is fixed to the lifting plate 22. The sliders 31 on both sides of the back of the plate 22 are connected to the tracks 30 on both sides of the fixed plate 21. The upper surface of the lifting plate 17 is installed with a rotating machine 19, which is connected to the pulley 18 through a belt. The rotating plate 17 is installed at the bottom of the pulley 18. Four connecting pipes 15 are installed at the four corners of the rotating plate 17. A position sensor 16 is installed at one corner of the rotating plate 17. A height sensor 23 is installed on the lower surface of the rotating plate 17; two left slide grooves 8 and two right slide grooves 11 are vertically installed on both sides of the fixed plate 21, and the bottoms of the left slide groove 8 and the right slide groove 11 on the same side are connected by a lower groove 12. One end of the left cover door 6 is connected by a pulley The left slide 8 is connected, and the other end of the left cover door 6 is connected to the left part of the lower slide 12 through a pulley. The top of the left cover door 6 is hinged to the left power rod 7, and the left cylinder 13 is installed on the top of the left power rod 7. The left cylinder 13 is fixed on the top of the shell 1. One end of the right cover door 9 is connected to the right slide 11 through a pulley, and the other end of the right cover door 9 is connected to the right part of the lower slide 12 through a pulley. The top of the right cover door 9 is hinged to the right power rod 10, and the right cylinder 14 is installed on the top of the right power rod 10. The right cylinder 14 is fixed on the top of the shell 1. The centrifuge 2 is directly below the rotating plate 17. The centrifuge 2 is fixed to the bottom of the shell 1, and 4 centrifuge cups 5 are installed in the centrifuge 2.

[0035] When in use, the four centrifugal cups 5 are fixed in the centrifuge 2. If the position sensor 16 corresponds to the cup holder in the centrifuge 2, the rotating machine 19 does not work. Otherwise, the rotating machine 19 works and drives the pulley 18 to rotate through the belt, thereby rotating the rotating plate 17 until the position sensor 16 corresponds to the cup holder in the centrifuge 2; then the elevator 20 works, driving the lifting plate 22 to move down along the track 30 on the fixed plate 21 until the connecting pipe 15 penetrates into the centrifugal cup 5, the elevator 20 stops working, starts the water inlet pump 25, and detects that the liquid enters from the water inlet pipe 3 and is injected into the centrifugal cup 5 through the connecting pipe 15. After the injection is completed, the elevator 20 works and reverses to drive the lifting plate 22 to rise to the original position along the track on the fixed plate 21. At this time, the left cylinder 13 and the right cylinder 14 start to work, respectively pushing the left power rod 7 and the right power rod 10, and the left power rod 7 drives the left cover door 6 along the left slide groove 8 and the lower slide groove 12 slide until it changes from a vertical position to a horizontal position, and the right cover door 9 is the same; then the centrifuge 2 works, and after centrifugation is completed, the left cylinder 13 and the right cylinder 14 return to their positions, respectively pulling back the left power rod 7 and the right power rod 10, and the left power rod 7 drives the left cover door 6 to slide along the left slide groove 8 and the lower slide groove 12 until it changes from a horizontal position to a vertical position, and the right cover door 9 is the same; then, if the position sensor 16 corresponds to the cup holder in the centrifuge 2, the rotating machine 19 does not work, otherwise the rotating machine 19 works and drives the pulley 18 to rotate through the belt, thereby rotating the rotating plate 17 until the position sensor 16 corresponds to the cup holder in the centrifuge 2; then the elevator 20 works, driving the lifting plate 22 to move down along the track on the fixed plate 21 until the connecting pipe 15 penetrates into the inside of the centrifugal cup 5, and the water outlet pump 24 works to extract the centrifuged liquid from the centrifugal cup 5 and discharge it from the water outlet pipe 4.

[0036] Embodiment 2:

[0037] This embodiment is basically the same as embodiment 1, except that: Figure 1 , 4 As shown in Figure 6, in Example 2, the left power rod 7, the left slide groove 8, the right power rod 10, the right slide groove 11, the lower slide groove 12, the left cylinder 13 and the right cylinder 14 are cancelled, and replaced by a left rotary motor 26 and a right rotary motor 27 fixed at both ends of the bottom of the shell 1. The left rotary motor 26 and the right rotary motor 27 are connected to the left cover door 6 and the right cover door 9 through a rotating shaft. When working, the left rotary motor 26 and the right rotary motor 27 drive the left cover door 6 and the right cover door 9 to rotate by rotating.

[0038] Embodiment 3:

[0039] This embodiment is basically the same as embodiment 1, except that: Figure 1 , 5As shown in Figure 6, in Example 2, the left power rod 7, the left slide groove 8, the right power rod 10, the right slide groove 11, the lower slide groove 12, the left cylinder 13 and the right cylinder 14 are cancelled, and replaced by a rotating motor 28 and a slide groove 29 fixed to the bottom of the shell 1. The rotating motor 28 is connected to the left cover door 6 through a rotating shaft, and the left cover door 6 is connected to the right cover door 9 through a rotating shaft. The other end of the right cover door 9 is connected to the slide groove 29 through a pulley. When working, the rotating motor 28 rotates to drive the left cover door 6 to rotate, and then the right cover door 9 moves linearly along the slide groove 29.

[0040] Embodiment 4:

[0041] This embodiment is basically the same as Embodiment 1, except that: in Embodiment 4, the outlet of the water inlet pump 25 is divided into 6 branches, one of which is connected to the water inlet valve of the metering cup, and the other 5 branches are respectively connected to the water inlet valve of centrifugal cup 1, water addition flow meter No. 1, centrifugal cup No. 1, and drain valve of centrifugal cup 1, the water inlet valve of centrifugal cup 2, water addition flow meter No. 2, centrifugal cup No. 2, and drain valve of centrifugal cup 2, the water inlet valve of centrifugal cup 3, water addition flow meter No. 3, centrifugal cup No. 3, and drain valve of centrifugal cup 3, the water inlet valve of centrifugal cup 4, water addition flow meter No. 4, centrifugal cup No. 4, and drain valve of centrifugal cup 4, and the fault water supply valve; after the 5 branches are connected in parallel, they are connected to the drain flow meter and the water outlet pump 24, and the water outlet pipe 4 is connected to the water outlet pump 24 through a pipeline.

[0042] Embodiment 5:

[0043] This embodiment is basically the same as Embodiment 4, with the difference being that in Embodiment 5, the water inlet pipe 3 is divided into a tap water pipe and a source water pipe with a filter, the water outlet pipe 4 is divided into a waste water pipe and a centrifugal water pipe, the tap water pipe and the source water pipe are both controlled by two water valves, the waste water pipe is controlled by a waste water valve, the water outlet pump 24 is connected before the clear liquid extraction valve, the centrifugal water pipe and the excess clear liquid discharge valve are connected via a tee after the clear liquid extraction valve, and the water outlet pump 24 is connected after the excess clear liquid discharge valve.

[0044] Embodiment 6:

[0045] This embodiment is basically the same as Embodiment 4, except that in Embodiment 6, an overflow cup is connected to the top of the measuring cup, and a waste water pipe is connected behind the overflow cup.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Automatic centrifugal pretreatment device for water quality detection, characterized in that: It includes a shell, a water inlet, a water outlet, a rotary mechanism, a centrifugal mechanism, a controller and a pipeline. The water inlet, water outlet, rotary mechanism and centrifugal mechanism are fixedly connected to the shell. The water inlet is connected to the rotary mechanism through a pipeline. The rotary mechanism is connected to the water outlet through a pipeline. The rotary mechanism cooperates with the centrifugal mechanism. The rotary mechanism includes a lifting part, a rotating part, a position sensing part and a connecting pipe. The lifting part is fixedly connected to the rotating part. The rotating part is connected to the position sensing part. The connecting pipe is connected to the pipeline. The centrifugal mechanism includes a centrifuge, a power part, a cover door and a centrifugal cup. The centrifuge A centrifugal cup is fixed inside, a position sensing component cooperates with the centrifugal cup, a connecting pipe cooperates with the centrifugal cup, a power component is fixedly connected to the outer shell, the power component is connected to a cover door, the cover door is located above the centrifuge, and the cover door can separate the connecting pipe and the centrifugal cup under the drive of the power component; the controller is connected and communicates with the water inlet component, the water outlet component, the lifting component, the rotating component, the position sensing component, the power component and the centrifuge; it also includes a water inlet pipe and a water outlet pipe, the water inlet pipe is connected to the water inlet component, the water outlet pipe is connected to the water outlet component, the water inlet pipe includes a source water pipe and a clean water pipe, and the water outlet pipe includes a waste water pipe and a centrifugal water pipe.

2. The automatic centrifugal pretreatment device for water quality detection according to claim 1 is characterized in that: The lifting member comprises a lifter, a fixing plate and a lifting plate. The fixing plate is fixed in the shell, the fixing plate fixes the lifter, the lifter is connected to the lifting plate, and the lifting plate is movably connected to the fixing plate.

3. The automatic centrifugal pretreatment device for water quality detection according to claim 2 is characterized in that: The rotating member comprises a rotating machine and a rotating plate. The lifting plate fixes the rotating machine, the rotating machine is connected to the rotating plate, and the rotating plate fixes the position sensing member and the connecting pipe.

4. The automatic centrifugal pretreatment device for water quality detection according to claim 3 is characterized in that: The lifting member also includes a height sensing member, and the height sensing member is fixedly connected to the lifting plate.

5. The automatic centrifugal pretreatment device for water quality detection according to claim 1, characterized in that: The centrifugal mechanism also includes a vertically arranged left slide groove, a vertically arranged right slide groove and a lower slide groove, the cover door includes a left cover door and a right cover door, the power part includes a left power rod, a left cylinder, a right power rod and a right cylinder, the left slide groove and the right slide groove are vertically arranged and arranged on both sides of the shell, the two ends of the lower slide groove are respectively connected to the bottom of the left slide groove and the right slide groove, the upper part of the left cover door is connected to the left slide groove, the lower part of the left cover door is connected to the lower slide groove, the upper part of the right cover door is connected to the right slide groove, the lower part of the right cover door is connected to the lower slide groove, the left cylinder is connected to the upper part of the left power rod, the lower part of the left power rod is hinged to the left cover door, the right cylinder is connected to the upper part of the right power rod, and the lower part of the right power rod is hinged to the right cover door.

6. The automatic centrifugal pretreatment device for water quality detection according to claim 1, characterized in that: It also includes a horizontally arranged slide groove, the cover door includes a left cover door, a right cover door and a rotating shaft, one side of the left cover door slidably cooperates with the slide groove, the other side of the left cover door is connected to the right cover door, the right cover door is connected to the rotating shaft, and the rotating shaft is connected to the power part.

7. The automatic centrifugal pretreatment device for water quality detection according to claim 1, characterized in that: The cover door includes a left cover door, a right cover door, a left rotating shaft and a right rotating shaft, and the power part includes a left rotating motor and a right rotating motor. The left rotating motor is connected to the left rotating shaft, and the left rotating shaft is fixedly connected to one side of the left cover door. The right rotating motor is connected to the right rotating shaft, and the right rotating shaft is fixedly connected to one side of the right cover door.

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