Water quality detection device for ultrapure water

Abstract

The utility model discloses an ultrapure water quality detection device which comprises a frame body, the top of the frame body is rotatably connected with a sampling placing table, a stainless steel sealing barrel is placed in the frame body, the top of the stainless steel sealing barrel is fixedly connected with an electric push rod, and the bottom of the output end of the electric push rod is fixedly connected with a circular piston plate. A reserved hole is formed in the top of the stainless steel sealing barrel, a water outlet pipe is fixedly connected to the inner wall of the reserved hole, a water outlet connector is fixedly connected to the top of the water outlet pipe, a sampling mechanism is arranged at the top of the sampling placement table, and a rotating mechanism is arranged in the frame body. By arranging the stainless steel sealing barrel, the electric push rod, the circular piston plate, the water outlet pipe, the water outlet connector, the water outlet inclined pipe, the electromagnetic flowmeter, the lower through pipe and the one-way exhaust valve, when ultrapure water is sampled, continuous contact between the ultrapure water and air is avoided, and subsequent detection on the water quality of the ultrapure water is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrapure water detection, in particular to a water quality detection device for ultrapure water. Background Art

[0002] Ultrapure water is primarily used in the fields of biology, medicine, and automotive, with specific applications including vessel cleaning and photolithography mask preparation. As a common laboratory water source, ultrapure water is extremely pure and has stringent quality requirements. To ensure the quality of ultrapure water, water quality testing is necessary.

[0003] After searching, the patent document with publication number: CN218629096U discloses a detection device for ultrapure water preparation, which starts the second servo motor to rotate the lead screw, and then the lead screw drives the screw sleeve, so that the screw sleeve can drive the clamping arm to move up and down, and then the clamping arm drives the sampling cup into the inner side of the preparation pool for sampling, and the driving motor can drive the driving gear to rotate, and the driving gear can drive the driven gear to rotate, and then the driven gear drives the linkage gear to rotate, and the driven gear and the linkage gear can be used to rotate the driving arm. The worm gear is driven by the worm gear, and the worm gear drives the mounting bracket to rotate, and the mounting bracket drives the clamping arm to rotate, and the clamping arm drives the sample cup to rotate, thereby realizing the transportation of the sample and effectively improving the sampling efficiency. The sampling process is not related to the detection process, and multiple samplings can be realized continuously.

[0004] In actual use, the above-mentioned device needs to be in an open state for the preparation pool, but ultrapure water needs to be sampled in a sealed state, and the preparation pool is in contact with the air. During the long-term opening process, impurities such as bacteria and dust in the air have a strong dissolving ability for ultrapure water, which affects the subsequent water quality detection. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a water quality detection device for ultrapure water.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A water quality detection device for ultrapure water comprises a frame, the top of the frame is rotatably connected to a sampling placement table, a stainless steel sealed barrel is placed inside the frame, the top of the stainless steel sealed barrel is fixedly connected to an electric push rod, the bottom of the output end of the electric push rod is fixedly connected to a circular piston plate, the top of the stainless steel sealed barrel is provided with a reserved hole, the inner wall of the reserved hole is fixedly connected to a water outlet pipe, the top of the water outlet pipe is fixedly connected to a water outlet joint, a sampling mechanism is provided on the top of the sampling placement table, and a rotating mechanism is provided inside the frame.

[0008] Preferably, the sampling mechanism includes two water outlet inclined tubes, the bottoms of the two water outlet inclined tubes are fixedly connected to the top of the water outlet joint, the outer walls of the two water outlet inclined tubes are fixedly installed with electromagnetic flowmeters, one ends of the two water outlet inclined tubes are fixedly connected with down pipes, and the top of the sampling placement table is evenly fixedly connected with multiple placement sleeves, and sampling tubes are placed inside the multiple placement sleeves, and the sampling tubes are supported by setting the placement sleeves.

[0009] Preferably, the rotating mechanism includes a motor, a bracket is fixedly connected to the inside of the frame, the top of the bracket is fixedly connected to the outer wall of the motor, the top of the motor output shaft is fixedly connected to a gear, the bottom of the sampling placement table is fixedly connected to a rotating gear ring, the gear and the rotating gear ring are meshed and connected, and a one-way exhaust valve is fixedly connected to the top of the stainless steel sealed barrel, and the one-way exhaust valve is provided to prevent a large negative pressure from being generated inside the stainless steel sealed barrel.

[0010] Preferably, the outer wall of the frame is rotatably connected to an opening and closing door, and the outer wall of the circular piston plate is slidably connected to the inner wall of the stainless steel sealing barrel.

[0011] Preferably, an assembly hole is opened on the top of the stainless steel sealing barrel, and the inner wall of the assembly hole is slidably connected to the outer wall of the output end of the electric push rod. The electric push rod is provided to drive the circular piston plate to move up and down, and the outer wall fixing sleeve of the circular piston plate is provided with multiple sealing rings.

[0012] Preferably, a sealing hole is opened on the outer wall of the circular piston plate, and the inner wall of the sealing hole is slidably connected to the outer wall of the water outlet pipe.

[0013] Preferably, a circular groove is provided on the top of the frame, and the inner wall of the circular groove is slidably connected to the outer wall of the rotating gear ring.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] This solution is equipped with a stainless steel sealed barrel, an electric push rod, a circular piston plate, a water outlet pipe, a water outlet joint, a water outlet inclined pipe, an electromagnetic flowmeter, a downpipe and a one-way exhaust valve to avoid continuous contact between ultrapure water and air when sampling ultrapure water, thereby facilitating subsequent testing of the ultrapure water quality.

[0016] By arranging a frame, a sampling placement table, a placement sleeve, a sampling tube, a motor, a gear and a rotating gear ring, continuous sampling of the sampling tube is facilitated and waiting time is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the description of the specific implementation methods. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of an ultrapure water quality detection device proposed by the utility model;

[0019] Figure 2 This is a schematic cross-sectional view of a device for detecting the quality of ultrapure water proposed in the present invention;

[0020] Figure 3 The utility model proposes an ultrapure water quality detection device Figure 2 A schematic diagram of the enlarged structure of part A in FIG.

[0021] In the figure: 1. Frame; 2. Sampling table; 3. Stainless steel sealed barrel; 4. Electric push rod; 5. Circular piston plate; 6. Water outlet pipe; 7. Water outlet connector; 8. Water outlet inclined pipe; 9. Electromagnetic flowmeter; 10. Downpipe; 11. Placement sleeve; 12. Sampling tube; 13. Motor; 14. Gear; 15. Rotating gear ring; 16. One-way exhaust valve. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Depend on Figure 1-Figure 3As shown, a water quality detection device for ultrapure water is provided, comprising a frame 1, an outer wall of the frame 1 being rotatably connected to an opening and closing door, a top of the frame 1 being rotatably connected to a sampling placement table 2, a stainless steel sealed barrel 3 being placed inside the frame 1, the opening and closing door being opened to add ultrapure water through an injection pipe on the outer wall of the stainless steel sealed barrel 3, and the injection pipe being subsequently sealed, an electric push rod 4 being fixedly connected to the top of the stainless steel sealed barrel 3, an assembly hole being provided on the top of the stainless steel sealed barrel 3, an inner wall of the assembly hole being slidably connected to the outer wall of the output end of the electric push rod 4, a mechanical seal being provided between the assembly hole and the output end of the electric push rod 4, a circular piston plate 5 being fixedly connected to the bottom of the output end of the electric push rod 4, an outer wall of the circular piston plate 5 being slidably connected to the inner wall of the stainless steel sealed barrel 3, and the circular piston plate 5 moving downward a certain distance to squeeze out part of the ultrapure water.

[0024] A reserved hole is provided at the top of the stainless steel sealed barrel 3, and a water outlet pipe 6 is fixedly connected to the inner wall of the reserved hole. A sealing gasket is provided inside the reserved hole to increase the sealing between the water outlet pipe 6 and the reserved hole. A sealing hole is provided on the outer wall of the circular piston plate 5, and the inner wall of the sealing hole is slidingly connected to the outer wall of the water outlet pipe 6. A water outlet joint 7 is fixedly connected to the top of the water outlet pipe 6, and the water outlet pipe 6 is communicated with two water outlet inclined pipes 8 through the water outlet joint 7.

[0025] A sampling mechanism is provided on the top of the sampling placement table 2, and the sampling mechanism includes two water outlet inclined tubes 8. The bottoms of the two water outlet inclined tubes 8 are fixedly communicated with the top of the water outlet joint 7. The outer walls of the two water outlet inclined tubes 8 are fixedly installed with electromagnetic flowmeters 9. The electromagnetic flowmeter 9 uses the induced electromotive force generated when the conductor moves in the magnetic field to measure the flow rate of the fluid, and the electromagnetic flowmeter 9 has an opening and closing function.

[0026] One end of the two water outlet inclined pipes 8 are fixedly connected to each other with a down pipe 10, and the top of the sampling placement table 2 is evenly fixedly connected with multiple placement sleeves 11, and sampling tubes 12 are placed inside the multiple placement sleeves 11, which support the sampling tubes 12.

[0027] The interior of the frame 1 is provided with a rotating mechanism, which includes a motor 13. The interior of the frame 1 is fixedly connected with a bracket, the top of the bracket is fixedly connected to the outer wall of the motor 13, and the bracket supports the motor 13. The top of the output shaft of the motor 13 is fixedly connected with a gear 14, and the bottom of the sampling placement table 2 is fixedly connected with a rotating gear ring 15. A circular groove is provided on the top of the frame 1, and the inner wall of the circular groove is slidably connected to the outer wall of the rotating gear ring 15. The gear 14 and the rotating gear ring 15 are meshed and connected. The operation of the motor 13 drives the gear 14 and the rotating gear ring 15 to rotate, and the rotation of the rotating gear ring 15 drives the sampling placement table 2 to rotate, so that multiple placement sleeves 11 are rotated, so that multiple sampling tubes 12 can be sampled in sequence, and two sampling tubes 12 are in a group. A one-way exhaust valve 16 is fixedly connected to the top of the stainless steel sealed barrel 3. The one-way exhaust valve 16 controls the flow direction of the fluid through a valve with a spring to ensure the pressure of the stainless steel sealed barrel 3.

[0028] Working principle: When in use, the motor 13 drives the gear 14 to rotate, the gear 14 rotates and drives the rotating gear ring 15 to rotate, the rotating gear ring 15 rotates and drives the sampling placement table 2 to rotate, the sampling placement table 2 rotates and drives multiple placement sleeves 11 to rotate, and two clean sampling tubes 12 are placed in the two placement sleeves 11 respectively, the electric push rod 4 drives the circular piston plate 5 to move downward, and the circular piston plate 5 moves downward to squeeze the ultrapure water in the stainless steel sealed barrel 3 and discharge it through the outlet pipe 6. In this process, the ultrapure water in the stainless steel sealed barrel 3 is in a sealed state, and the squeezing force makes the ultrapure water in the stainless steel sealed barrel 3 be discharged through the outlet pipe 6. It discharges water, and as the circular piston plate 5 moves a distance, part of the ultrapure water flows through the water outlet pipe 6 into the two water outlet inclined tubes 8, and is opened by the electromagnetic flowmeter 9, and the ultrapure water flows into the two sampling tubes 12 through the two down-tubes 10. After the sampling is completed, the top of the sampling tube 12 is sealed by a rubber plug to prevent subsequent air from continuously contacting the ultrapure water. The electric push rod 4 moves up a short distance, and the remaining ultrapure water in the two water outlet inclined tubes 8 flows back to the stainless steel sealed barrel 3 by gravity, and the two electromagnetic flowmeters 9 are closed to ensure that outside air cannot enter the stainless steel sealed barrel 3 through the water outlet inclined tube 8.

[0029] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here. The components, structures and principles known to technical personnel in this field can be known by technical personnel through technical manuals or through conventional experimental methods.

[0030] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the quality of ultrapure water, comprising a frame (1), characterized in that: The top of the frame (1) is rotatably connected to a sampling table (2), a stainless steel sealed barrel (3) is placed inside the frame (1), the top of the stainless steel sealed barrel (3) is fixedly connected to an electric push rod (4), the bottom of the output end of the electric push rod (4) is fixedly connected to a circular piston plate (5), a reserved hole is opened on the top of the stainless steel sealed barrel (3), a water outlet pipe (6) is fixedly connected to the inner wall of the reserved hole, and a water outlet joint (7) is fixedly connected to the top of the water outlet pipe (6), a sampling mechanism is provided on the top of the sampling table (2), and a rotating mechanism is provided inside the frame (1).

2. The ultrapure water quality detection device according to claim 1, characterized in that: The sampling mechanism comprises two water outlet inclined pipes (8), the bottoms of the two water outlet inclined pipes (8) are fixedly connected to the top of the water outlet joint (7), the outer walls of the two water outlet inclined pipes (8) are fixedly installed with electromagnetic flowmeters (9), one end of the two water outlet inclined pipes (8) is fixedly connected to a lower pipe (10), and the top of the sampling placement table (2) is evenly fixedly connected with a plurality of placement sleeves (11), and the interiors of the plurality of placement sleeves (11) are each provided with a sampling tube (12).

3. The water quality detection device for ultrapure water according to claim 1, characterized in that: The rotating mechanism includes a motor (13), a bracket fixedly connected to the interior of the frame (1), the top of the bracket fixedly connected to the outer wall of the motor (13), a gear (14) fixedly connected to the top of the output shaft of the motor (13), a rotating gear ring (15) fixedly connected to the bottom of the sampling placement table (2), the gear (14) and the rotating gear ring (15) are meshedly connected, and a one-way exhaust valve (16) is fixedly connected to the top of the stainless steel sealed barrel (3).

4. The ultrapure water quality detection device according to claim 1, characterized in that: The outer wall of the frame (1) is rotatably connected to an opening and closing door, and the outer wall of the circular piston plate (5) is slidably connected to the inner wall of the stainless steel sealing barrel (3).

5. The device for detecting the quality of ultrapure water according to claim 1, wherein: An assembly hole is provided on the top of the stainless steel sealing barrel (3), and the inner wall of the assembly hole is slidably connected to the outer wall of the output end of the electric push rod (4).

6. The device for detecting the quality of ultrapure water according to claim 1, wherein: A sealing hole is provided on the outer wall of the circular piston plate (5), and the inner wall of the sealing hole is slidably connected to the outer wall of the water outlet pipe (6).

7. The device for detecting the quality of ultrapure water according to claim 3, wherein: A circular groove is provided on the top of the frame (1), and the inner wall of the circular groove is slidably connected to the outer wall of the rotating gear ring (15).

Images