CN109297765A - A kind of sewage treatment activated sludge detection sampler - Google Patents
A kind of sewage treatment activated sludge detection sampler Download PDFInfo
- Publication number
- CN109297765A CN109297765A CN201811493689.0A CN201811493689A CN109297765A CN 109297765 A CN109297765 A CN 109297765A CN 201811493689 A CN201811493689 A CN 201811493689A CN 109297765 A CN109297765 A CN 109297765A
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- cylinder
- main body
- sliding
- piston
- activated sludge
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
- G01N2001/1427—Positive displacement, piston, peristaltic
Abstract
A kind of sewage treatment activated sludge detection sampler of the present invention discloses a kind of cooperation by main piston and filter screen, is filtered processing to the sewage of extraction, the sampler that sludge filtration is come out.The sampling efficiency to activated sludge can be effectively improved.It is characterized in that the main body cylinder bottom end is uncovered structure, connecting cylinder top is connected by support sleeve with main body cylinder bottom end, the connecting cylinder top is uncovered structure, and it is connected with main body cylinder, effluent trough is provided in the main body cylinder, diversion pipe is placed in main body cylinder, and with effluent trough is corresponding is connected to, the water conservancy diversion tube section is L-type structure, connection is placed on diversion pipe one end, the connecting cylinder center bottom is provided with through-hole, fixing pipe one end is placed in connecting cylinder bottom end, and it is corresponding with the through-hole of connecting cylinder bottom end, check valve is placed in the fixing pipe other end, fixing sleeve is placed on the fixing pipe other end, guiding is placed on main body cylinder top middle portion.
Description
Technical field
A kind of sewage treatment activated sludge of the present invention detects sampler, is related to a kind of use at activated sludge process progress sewage
When reason, the sampler of detection sampling is carried out to activated sludge, belongs to sewage treatment field.In particular to a kind of by main piston and
The cooperation of filter screen is filtered processing to the sewage of extraction, the sampler that sludge filtration is come out.
Background technique
Currently, the sewage treatment more for content of organics is more troublesome when carrying out sewage treatment, it usually first will be dirty
Organic matter in water carries out water body purification processing again after being handled, activated sludge process be existing frequently-used sewage treatmentmethod it
One, wastewater treatment is carried out based on activated sludge, the microbe species and quantity in activated sludge influence treatment effeciency
It is larger, it usually needs detection periodically to be sampled to activated sludge, traditional sampling mode is being located by tools such as syringes
Reason is extracted in pond, and the injection port diameter of usual syringe is smaller, and resistance is larger when extracting activated sludge, is extracted more tired
Difficulty, and the sample liquid extracted is the mixture of activated sludge and sewage, needs to carry out again after falling sewage water filtration before being detected
Detection；
Publication number CN2092095 discloses Portable Sewage Sampler, by liquid taking head, perfusion tube, solution bottle and one-way intake ball
Composition for that in environmental monitoring and sewage treatment, can measure water sludge interface height, and can use the water sample of different depth to control
Sludge back flow quantity in secondary settling tank is sampled using the device, need first before activated sludge detection by sewage and activity
Sludge is detected again after being separated, and operation is more troublesome, and when detection limit is larger, efficiency is lower, and using effect is bad.
Summary of the invention
In order to improve above situation, a kind of sewage treatment activated sludge detection sampler of the present invention provides one kind and passes through master
The cooperation of piston and filter screen is filtered processing to the sewage of extraction, the sampler that sludge filtration is come out.It can effectively mention
Sampling efficiency of the height to activated sludge.
A kind of sewage treatment activated sludge detection sampler of the present invention is achieved in that a kind of sewage treatment of the present invention is living
Property sludge detection sampler be made of agent set and sampler, agent set is by connector sleeve, diversion pipe, main body cylinder, guiding
Set, fixing pipe, fixing sleeve, check valve, support sleeve and connecting cylinder composition, the main body cylinder bottom end are uncovered structure, connecting cylinder top
End is connected by support sleeve with main body cylinder bottom end, and the connecting cylinder top is uncovered structure, and is connected with main body cylinder, described
Effluent trough is provided in main body cylinder, diversion pipe is placed in main body cylinder, and with effluent trough is corresponding is connected to, the water conservancy diversion tube section is L
Type structure, connection are placed on diversion pipe one end, and the connecting cylinder center bottom is provided with through-hole, and fixing pipe one end is placed in connecting cylinder
Bottom end, and it is corresponding with the through-hole of connecting cylinder bottom end, check valve is placed in the fixing pipe other end, and it is another that fixing sleeve is placed on fixing pipe
On one end, guiding is placed on main body cylinder top middle portion, and sampler is by holding rod, connecting rod, sealing shroud, sliding cylinder, sliding tube, limit
Position block, sliding bar, auxiliary piston, fixed link, impeller, fixed spring, main piston and filter screen composition, sliding cylinder are placed in main body cylinder
It is interior, apopore is provided on the sliding cylinder, and be connected with effluent trough, the sliding cylinder bottom end is uncovered structure, and sliding tube is set
In in sliding cylinder, and one end is connected with sliding cylinder top middle portion, and main piston is placed in sliding cylinder bottom end, and with the sliding tube other end
It is connected, is connected on the outside of the main piston with main body cylinder inner wall, gasket is equipped on the outside of the main piston, connection is placed on master
In the middle part of piston, and it is connected with sliding tube, two check valves are respectively placed on main piston, and are located at the two sides of connection set,
Filter screen is equipped on the main piston, limited block is placed in sliding tube, and sliding bar one end is connected with limited block, and the other end passes through
Connection is placed in connecting cylinder, and auxiliary piston is placed on the sliding bar other end, fixed spring is equipped on the sliding bar, and be located at
It between main piston and auxiliary piston, fits on the outside of the auxiliary piston with connecting cylinder inner wall, is equipped with gasket on the outside of the auxiliary piston,
Fixed link one end is placed on auxiliary piston, and the other end is placed in the through-hole of connecting cylinder bottom end, and impeller is placed on the fixed link other end, and
In the through-hole of connecting cylinder bottom end, the impeller is helical form, and two check valves are respectively placed on auxiliary piston, and are located at
The two sides of fixed link, sealing are placed on sliding cylinder top, and the sealing shroud outer wall and main body cylinder inner wall fit, connecting rod one end
It is placed in sealing shroud across guiding, and is connected with sliding cylinder top middle portion, the connecting rod other end is placed in outside main body cylinder, holding rod
It is placed on the connecting rod other end.
In use, fixing sleeve is placed in treatment tank first when being sampled to activated sludge, by connector sleeve
It is connected by outer water tube with treatment tank, pulls holding rod then up, holding rod drives sliding cylinder upward by connecting rod
Mobile, sliding cylinder drives main piston to move up, and sliding tube is moved up along sliding bar, and fixed spring is upheld, and auxiliary piston is protected
It holds motionless, is negative pressure in main body cylinder, and then sewage is sucked into fixing pipe by fixing sleeve, sewage impeller rotates, and makes water
Manifold is spiral to be entered in connecting cylinder, then by two check valves on auxiliary piston enter auxiliary piston and main piston it
Between, at this point, pushing holding rod, worm screw drives sliding cylinder to move down by connecting rod, and movable cylinder drives main piston to move down, sliding
Dynamic pipe is moved down along sliding bar, and fixed spring is compressed, so main piston to the sewage between main piston and auxiliary piston into
Row squeezes, then sewage enters sliding cylinder by two check valves on main piston after the filter screen filtration on main piston
It is interior, and then sludge is filtered, and is deposited between main piston and auxiliary piston, after sewage enters in sliding cylinder, passes through sliding cylinder
On apopore enter in effluent trough, then by diversion pipe flow out, finally flow back in treatment tank, after the completion of sampling,
Support sleeve is removed, connecting cylinder and main body cylinder are separated, then sludge is taken out and is detected convenient for postorder；
It is equipped with the design of gasket on the outside of the main piston, can be improved the sealing effect between main piston and main body cylinder inner wall, prevents
After the filtered net filtration of sewage only between main piston and auxiliary piston, directly pass through the gap between main piston and main body cylinder inner wall
It flows into sliding cylinder；
It is equipped with the design of gasket on the outside of the auxiliary piston, can be improved the sealing effect between auxiliary piston and connecting cylinder inner wall, prevents
When only main piston moves down, the sewage of main piston and auxiliary piston space passes through the clearance backflow between auxiliary piston and connecting cylinder inner wall；
The impeller is spiral helicine design, can make the spiral flowing of sewage, easily facilitates and sucks sewage in main body cylinder,
Improve sampling efficiency；
The fixing sleeve and fixing pipe cooperation, form the design of pump mouth, pump mouth is larger, convenient for extracting to sewage, mentions
High sampling efficiency；
The filter screen and main piston cooperation, can be by the sludge filtration in sewage to the design that the sewage of extraction is filtered
Fall, be isolated in sludge between main piston and auxiliary piston, is used convenient for postorder detection, no longer need to individually be filtered processing；
When reaching using activated sludge process progress sewage treatment, the purpose of detection sampling is carried out to activated sludge.
Beneficial effect.
One, structure is simple, convenient and practical.
Two, cheap, it is easy to spread.
Three, the sampling efficiency to activated sludge can be effectively improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that a kind of sewage treatment activated sludge of the present invention detects sampler.
Fig. 2 is the structural schematic diagram that a kind of sewage treatment activated sludge of the present invention detects sampler filter screen.
In attached drawing
Wherein part are as follows: connector sleeve (1), diversion pipe (2), main body cylinder (3), guide sleeve (4), holding rod (5), connecting rod (6), sealing
It covers (7), sliding cylinder (8), sliding tube (9), limited block (10), sliding bar (11), auxiliary piston (12), fixed link (13), fixing pipe
(14), fixing sleeve (15), impeller (16), fixed spring (17), check valve (18), main piston (19), support sleeve (20), filter screen
(21), connecting cylinder (22).
Specific embodiment:
A kind of sewage treatment activated sludge detection sampler of the present invention is achieved in that by agent set and sampler group
At agent set is by connector sleeve (1), diversion pipe (2), main body cylinder (3), guide sleeve (4), fixing pipe (14), fixing sleeve (15), list
It is formed to valve (18), support sleeve (20) and connecting cylinder (22), main body cylinder (3) bottom end is uncovered structure, connecting cylinder (22) top
End is connected by support sleeve (20) with main body cylinder (3) bottom end, and connecting cylinder (22) top is uncovered structure, and and main body cylinder
(3) it is connected, effluent trough is provided on the main body cylinder (3), diversion pipe (2) is placed on main body cylinder (3), and corresponding with effluent trough
Connection, diversion pipe (2) section are L-type structure, and connector sleeve (1) is placed on diversion pipe (2) one end, connecting cylinder (22) bottom
End middle part is provided with through-hole, and fixing pipe (14) one end is placed in connecting cylinder (22) bottom end, and opposite with the through-hole of connecting cylinder (22) bottom end
It answers, check valve (18) is placed in fixing pipe (14) other end, and fixing sleeve (15) is placed on fixing pipe (14) other end, guide sleeve
(4) it is placed in main body cylinder (3) top middle portion, sampler is by holding rod (5), connecting rod (6), sealing shroud (7), sliding cylinder (8), sliding
Manage (9), limited block (10), sliding bar (11), auxiliary piston (12), fixed link (13), impeller (16), fixed spring (17), main work
(19) and filter screen (21) composition are filled in, sliding cylinder (8) is placed in main body cylinder (3), it is provided with apopore on the sliding cylinder (8), and
Be connected with effluent trough, sliding cylinder (8) bottom end is uncovered structure, and sliding tube (9) is placed in sliding cylinder (8), and one end and
Sliding cylinder (8) top middle portion is connected, and main piston (19) is placed in sliding cylinder (8) bottom end, and is connected with sliding tube (9) other end
It connects, is connected on the outside of the main piston (19) with main body cylinder (3) inner wall, be equipped with gasket on the outside of the main piston (19), be connected to
It being placed in the middle part of main piston (19), and is connected with sliding tube (9), two check valves (18) are respectively placed on main piston (19),
And the two sides of connection set are located at, it is equipped with filter screen (21) on the main piston (19), limited block (10) is placed in sliding tube (9)
Interior, sliding bar (11) one end is connected with limited block (10), and the other end passes through connection and is placed in connecting cylinder (22), auxiliary piston
(12) it is placed on sliding bar (11) other end, is equipped with fixed spring (17) on the sliding bar (11), and be located at main piston
(19) it between auxiliary piston (12), fits on the outside of the auxiliary piston (12) with connecting cylinder (22) inner wall, the auxiliary piston (12)
Outside is equipped with gasket, and fixed link (13) one end is placed on auxiliary piston (12), and the other end is placed in the through-hole of connecting cylinder (22) bottom end
Interior, impeller (16) is placed on fixed link (13) other end, and is located in the through-hole of connecting cylinder (22) bottom end, and the impeller (16) is
Helical form, two check valves (18) are respectively placed on auxiliary piston (12), and are located at the two sides of fixed link (13), sealing shroud
(7) it is placed in sliding cylinder (8) top, sealing shroud (7) outer wall and main body cylinder (3) inner wall fit, and connecting rod (6) one end passes through
Guide sleeve (4) is placed in sealing shroud (7), and is connected with sliding cylinder (8) top middle portion, and connecting rod (6) other end is placed in main body
Outside, holding rod (5) is placed on connecting rod (6) other end cylinder (3).
In use, fixing sleeve (15) is placed in treatment tank first when being sampled to activated sludge, it will even
Female connector (1) is connected by outer water tube with treatment tank, pulls holding rod (5) then up, and holding rod (5) passes through connecting rod
(6) sliding cylinder (8) are driven to move up, sliding cylinder (8) drives main piston (19) to move up, and sliding tube (9) is along sliding bar
(11) it moves up, fixed spring (17) is upheld, and auxiliary piston (12) remains stationary, and is negative pressure in main body cylinder (3), and then sewage is logical
It crosses fixing sleeve (15) to be sucked into fixing pipe (14), sewage impeller (16) rotation, so that water flow is formed helical form and enter company
In connect cylinder (22), then by two check valves (18) on auxiliary piston (12) enter auxiliary piston (12) and main piston (19) it
Between, at this point, pushing holding rod (5), worm screw drives sliding cylinder (8) to move down by connecting rod (6), and movable cylinder drives main piston
(19) it moves down, sliding tube (9) is moved down along sliding bar (11), and fixed spring (17) is compressed, and then main piston
(19) sewage between main piston (19) and auxiliary piston (12) is squeezed, sewage is through the filter screen (21) on main piston (19)
After filtering, then entered in sliding cylinder (8) by two check valves (18) on main piston (19), and then sludge is filtered
Fall, be deposited between main piston (19) and auxiliary piston (12), after sewage enters in sliding cylinder (8), by sliding cylinder (8)
Apopore enters in effluent trough, is then flowed out by diversion pipe (2), is finally flow back in treatment tank, will after the completion of sampling
Support sleeve (20) removes, and separates connecting cylinder (22) and main body cylinder (3), then sludge is taken out and is detected convenient for postorder；
It is equipped with the design of gasket on the outside of the main piston (19), can be improved between main piston (19) and main body cylinder (3) inner wall
Sealing effect directly passes through master after preventing the sewage between main piston (19) and auxiliary piston (12) from filtering without strainer (21)
Gap between piston (19) and main body cylinder (3) inner wall flows into sliding cylinder (8)；
It is equipped with the design of gasket on the outside of the auxiliary piston (12), can be improved between auxiliary piston (12) and connecting cylinder (22) inner wall
Sealing effect, when preventing main piston (19) from moving down, sewage between main piston (19) and auxiliary piston (12) by auxiliary piston (12) and
Clearance backflow between connecting cylinder (22) inner wall；
The impeller (16) is spiral helicine design, can make the spiral flowing of sewage, easily facilitate sewage sucking main body
In cylinder (3), sampling efficiency is improved；
The fixing sleeve (15) and fixing pipe (14) cooperation, form the design of pump mouth, and pump mouth is larger, convenient for carrying out to sewage
It extracts, improves sampling efficiency；
The filter screen (21) and main piston (19) cooperation can will be in sewage to the design that the sewage of extraction is filtered
Sludge filtration is fallen, and is isolated in sludge between main piston (19) and auxiliary piston (12), uses convenient for postorder detection, no longer needs to list
Solely it is filtered processing；
When reaching using activated sludge process progress sewage treatment, the purpose of detection sampling is carried out to activated sludge.
Claims (7)
1. a kind of sewage treatment activated sludge detects sampler, it is characterized in that: being made of agent set and sampler, main body dress
It sets and is made of connector sleeve, diversion pipe, main body cylinder, guide sleeve, fixing pipe, fixing sleeve, check valve, support sleeve and connecting cylinder, it is described
Main body cylinder bottom end is uncovered structure, and connecting cylinder top is connected by support sleeve with main body cylinder bottom end, and the connecting cylinder top is
Uncovered structure, and be connected with main body cylinder, effluent trough is provided in the main body cylinder, diversion pipe is placed in main body cylinder, and and water outlet
The corresponding connection of slot, connection are placed on diversion pipe one end, and the connecting cylinder center bottom is provided with through-hole, and fixing pipe one end is placed in
Connecting cylinder bottom end, and it is corresponding with the through-hole of connecting cylinder bottom end, check valve is placed in the fixing pipe other end, and fixing sleeve is placed on solid
Determine on the pipe other end, guiding is placed on main body cylinder top middle portion, and sampler is by holding rod, connecting rod, sealing shroud, sliding cylinder, cunning
Dynamic pipe, limited block, sliding bar, auxiliary piston, fixed link, impeller, fixed spring, main piston and filter screen composition, sliding cylinder are placed in
In main body cylinder, apopore is provided on the sliding cylinder, and be connected with effluent trough, the sliding cylinder bottom end is uncovered structure, sliding
Dynamic pipe is placed in sliding cylinder, and one end is connected with sliding cylinder top middle portion, and main piston is placed in sliding cylinder bottom end, and and sliding tube
The other end is connected, and is connected on the outside of the main piston with main body cylinder inner wall, and connection is placed in the middle part of main piston, and and sliding tube
It is connected, two check valves are respectively placed on main piston, and are located at the two sides of connection set, are equipped with filtering on the main piston
Net, limited block are placed in sliding tube, and sliding bar one end is connected with limited block, and the other end passes through connection and is placed in connecting cylinder,
Auxiliary piston is placed on the sliding bar other end, fixed spring is equipped on the sliding bar, and between main piston and auxiliary piston,
It fits on the outside of the auxiliary piston with connecting cylinder inner wall, fixed link one end is placed on auxiliary piston, and the other end is placed in connecting cylinder bottom end
Through-hole in, impeller is placed on the fixed link other end, and be located at connecting cylinder bottom end through-hole in, two check valves are respectively placed in auxiliary
On piston, and the two sides of fixed link are located at, sealing is placed on sliding cylinder top, the sealing shroud outer wall and main body cylinder inner wall
It fits, connecting rod one end passes through guiding and is placed in sealing shroud, and is connected with sliding cylinder top middle portion, the connecting rod other end
It is placed in outside main body cylinder, holding rod is placed on the connecting rod other end.
2. a kind of sewage treatment activated sludge according to claim 1 detects sampler, it is characterised in that the diversion pipe
Section is L-type structure.
3. a kind of sewage treatment activated sludge according to claim 1 detects sampler, it is characterised in that the main piston
Outside is equipped with gasket.
4. a kind of sewage treatment activated sludge according to claim 1 detects sampler, it is characterised in that the auxiliary piston
Outside is equipped with gasket.
5. a kind of sewage treatment activated sludge according to claim 1 detects sampler, it is characterised in that the impeller is
Helical form.
6. a kind of sewage treatment activated sludge according to claim 1 detects sampler, it is characterised in that the fixing sleeve
Cooperate with fixing pipe, forms pump mouth.
7. a kind of sewage treatment activated sludge according to claim 1 detects sampler, it is characterised in that the filter screen
Cooperate with main piston, the sewage of extraction is filtered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811493689.0A CN109297765B (en) | 2018-12-07 | 2018-12-07 | Sewage treatment activated sludge detects sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811493689.0A CN109297765B (en) | 2018-12-07 | 2018-12-07 | Sewage treatment activated sludge detects sampler |
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| Publication Number | Publication Date |
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| CN109297765A true CN109297765A (en) | 2019-02-01 |
| CN109297765B CN109297765B (en) | 2021-04-06 |
Family
ID=65141528
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811493689.0A Active CN109297765B (en) | 2018-12-07 | 2018-12-07 | Sewage treatment activated sludge detects sampler |
Country Status (1)
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111388208A (en) * | 2020-03-17 | 2020-07-10 | 中国人民解放军北部战区总医院 | Portable isolation cabin for treating respiratory tract transmitted disease patient |
| CN112051100A (en) * | 2020-10-10 | 2020-12-08 | 江苏旭龙水务有限公司 | Sludge sampling device |
| CN112138438A (en) * | 2020-09-30 | 2020-12-29 | 郑州航空工业管理学院 | Sewage filtering device |
| CN112362398A (en) * | 2020-10-26 | 2021-02-12 | 江苏旭龙水务有限公司 | Sewage sampling device and sewage sampling method |
| CN112588194A (en) * | 2020-12-30 | 2021-04-02 | 李卫锋 | A aseptic preparation facilities of protein medicine for freeze-dried powder injection is prepared |
| CN112945611A (en) * | 2021-01-26 | 2021-06-11 | 通化师范学院 | Anti-sinking wetland soil sampler convenient to sample |
| CN112973979A (en) * | 2021-02-04 | 2021-06-18 | 天津三好科技有限公司 | Extraction purifying tube and extraction system |
| CN113713871A (en) * | 2021-08-26 | 2021-11-30 | 上海安集协康生物技术股份有限公司 | Syringe |
| CN114486364A (en) * | 2022-02-17 | 2022-05-13 | 李炳辰 | Environment-friendly silt sampling treatment device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111388208A (en) * | 2020-03-17 | 2020-07-10 | 中国人民解放军北部战区总医院 | Portable isolation cabin for treating respiratory tract transmitted disease patient |
| CN112138438A (en) * | 2020-09-30 | 2020-12-29 | 郑州航空工业管理学院 | Sewage filtering device |
| CN112051100A (en) * | 2020-10-10 | 2020-12-08 | 江苏旭龙水务有限公司 | Sludge sampling device |
| CN112362398A (en) * | 2020-10-26 | 2021-02-12 | 江苏旭龙水务有限公司 | Sewage sampling device and sewage sampling method |
| CN112588194A (en) * | 2020-12-30 | 2021-04-02 | 李卫锋 | A aseptic preparation facilities of protein medicine for freeze-dried powder injection is prepared |
| CN112588194B (en) * | 2020-12-30 | 2022-11-22 | 湘雅生物医药(湖州)有限公司 | A aseptic preparation facilities of protein medicine for freeze-dried powder injection is prepared |
| CN112945611A (en) * | 2021-01-26 | 2021-06-11 | 通化师范学院 | Anti-sinking wetland soil sampler convenient to sample |
| CN112973979A (en) * | 2021-02-04 | 2021-06-18 | 天津三好科技有限公司 | Extraction purifying tube and extraction system |
| CN112973979B (en) * | 2021-02-04 | 2022-04-12 | 天津三好科技有限公司 | Extraction purifying tube and extraction system |
| CN113713871A (en) * | 2021-08-26 | 2021-11-30 | 上海安集协康生物技术股份有限公司 | Syringe |
| CN114486364A (en) * | 2022-02-17 | 2022-05-13 | 李炳辰 | Environment-friendly silt sampling treatment device |
| CN114486364B (en) * | 2022-02-17 | 2024-02-02 | 青岛博研海洋环境科技有限公司 | Environment-friendly silt sampling treatment device |
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| CN109297765B (en) | 2021-04-06 |
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