CN111537507A - Portable water quality testing device - Google Patents
Portable water quality testing device Download PDFInfo
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- CN111537507A CN111537507A CN202010424818.1A CN202010424818A CN111537507A CN 111537507 A CN111537507 A CN 111537507A CN 202010424818 A CN202010424818 A CN 202010424818A CN 111537507 A CN111537507 A CN 111537507A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
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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
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
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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
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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Abstract
The invention discloses a portable water quality detection device, which comprises a separation area and a detection area which are arranged in a shell; the separation area comprises a driving part and a centrifugal part, and the driving part is connected with the centrifugal part; a hollow separation cavity is formed in the centrifugal piece, and a water inlet channel is formed between the centrifugal piece and the shell; a water outlet is arranged at the bottom of the separation cavity; a detection area is arranged right below the separation area, a plurality of sub-chambers are sequentially arranged in the detection area, the top of a rotating channel in the detection area is connected with a water inlet of the detection area through a bearing, the water inlet of the detection area is over against a water outlet of the separation chamber, and the outer end part of the rotating channel horizontally extends to a water inlet of any sub-chamber; the rotating rod penetrates through and extends to the water outlet of the separation cavity; the outer end of the rotary rod is exposed out of the shell, the rotary rod is clamped with the rotary channel, and the rotary rod drives the rotary channel to rotate when the rotary rod and the rotary channel are clamped, so that the rotary channel is communicated with any sub-cavity. The invention can improve the detection efficiency and reduce the probability of pollution of the water body sample.
Description
Technical Field
The invention relates to the field of water quality detection devices, in particular to a portable water quality detection device.
Background
At present, the acid-base degree of a water body in a river channel can influence the growth condition of microorganisms in the water body and directly influence the water quality condition of the river channel, so that acid-base detection is a key step in the river channel water quality detection link.
In the existing water quality detection process, a certain amount of water samples need to be collected from a river channel, solid matters in the water samples are separated, a certain amount of water samples are repeatedly taken out and transferred to different detection test tubes, different chemical reagents are added into different detection test tubes, and finally different colors are presented in different solutions according to the reaction of the reagents and ions in the water, so that the pH value of the water samples is determined, and the ion types in the water samples are obtained, so that the water quality conditions of the water samples are determined.
However, in the above acid-base detection process, the collected water body sample needs to be taken out from the sampling device, and then the sample is sequentially added into test tubes filled with different reagents, the process is complicated, and the detection efficiency cannot be improved; and when the water body sample is taken out from the acquisition equipment and transferred to other containers for transportation and loading, the water body sample is easily polluted by foreign substances, so that the detection accuracy is not high.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a portable water quality detection device which can be used for completing the detection of the pH value of water by simple operation while collecting a water body sample, improving the detection efficiency and reducing the probability of pollution of the water body sample.
The purpose of the invention is realized by adopting the following technical scheme:
a portable water quality testing device includes:
a housing having a separation zone and a detection zone disposed therein;
the separation area comprises a driving piece and a centrifugal piece, the fixed end of the driving piece is connected to the inner top of the shell, and the connecting end of the driving piece is connected with the centrifugal piece; a hollow separation cavity is formed in the centrifugal piece, and a first water inlet channel is formed between the centrifugal piece and the shell to enable the separation cavity to be communicated with the outside of the shell; a water outlet is arranged at the bottom of the separation cavity;
the detection area is positioned right below the separation area and comprises a rotary channel and a plurality of sub-cavities, the plurality of sub-cavities are sequentially arranged on the peripheral side wall in the detection area, and a water inlet positioned at the same height is formed in one surface of each sub-cavity, which faces to the central axis of the shell; the top end part of the rotating channel is connected with a water inlet of the detection area through a bearing, the water inlet of the detection area is over against a water outlet of the separation cavity, and the outer end part of the rotating channel horizontally extends to a water inlet of any sub-cavity;
the rotating rod penetrates through the openings formed in the bottom of the shell, the bottom of the detection area and the bottom of the rotating channel and extends to the water outlet of the separation cavity; the outer end of the rotating rod is exposed out of the shell, the rotating rod is clamped with the rotating channel, and when the rotating rod and the rotating channel are clamped, the rotating channel is driven by the rotating rod to rotate so that the rotating channel is communicated with any sub-cavity.
Furthermore, a hole wall extends upwards from the water outlet of the separation cavity, so that a height difference is formed between the hole wall and the bottom of the separation cavity.
Further, liquid outside the shell enters the separation cavity through the first water inlet channel, and the liquid level in the separation cavity is ensured to be above the hole wall.
Further, the shortest distance from the water inlet of each sub-cavity to the vertical central axis of the shell is the same.
Furthermore, the rotating channel comprises a transverse pipeline and a longitudinal pipeline, the top end of the longitudinal pipeline is over against the water outlet of the separation cavity, and the pipe orifice at the bottom end of the longitudinal pipeline is a non-closed pipe orifice, so that the rotating rod penetrates into the longitudinal pipeline through the pipe orifice; the pipe body of the longitudinal pipeline extends to the horizontal direction to form a transverse pipeline communicated with the longitudinal pipeline, and the outer end part of the transverse pipeline extends to the water inlet of any sub-cavity.
Furthermore, the connecting end of the driving element, the water outlet of the separation cavity, the water inlet of the detection area, the longitudinal pipeline and the rotating rod are all located on the vertical central axis of the shell.
Furthermore, a flexible water retaining sheet is arranged at the top end of the rotating rod, and the flexible water retaining sheet is elastically deformed when the rotating rod moves between the separation cavity and the longitudinal pipeline.
Furthermore, a second water inlet channel is further arranged on the shell, extends towards the detection area and is communicated with any sub-cavity in the detection area.
Furthermore, the shell is of an open-close type box body structure, and the open-close position of the shell is arranged between the separation area and the detection area; and the separation cavity and each sub-cavity are respectively provided with a cleaning opening, and each cleaning opening is provided with a leakage-proof plug for blocking the cleaning opening.
Furthermore, the shell is made of transparent materials, and the top of the shell is connected with a suspension wire.
Compared with the prior art, the invention has the beneficial effects that:
a separation area and a detection area are arranged in the shell, a water body sample is collected, meanwhile, the sample enters the separation area along the first water inlet channel, the separation area separates impurities from the sample, and insoluble substances in the sample are reduced; meanwhile, different chemical reagents can be pre-filled in different sub-cavities of the detection area, and a sample can be transferred from the separation area to any sub-cavity to carry out different water quality detection operations under the drive of the rotating rod; the device can accomplish sample impurity separation and detection operation through simple operation when gathering the sample, improves detection efficiency, reduces the sample simultaneously and shifts to the condition emergence that takes place the pollution in the container, improves the degree of accuracy that detects.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention (in a state where the rotating rod blocks the water outlet of the separation chamber);
FIG. 2 is a second schematic cross-sectional view of the present invention (in a state where the rotating rod moves down to conduct the rotating channel);
FIG. 3 is a schematic top view of a detection area according to the present invention.
In the figure: 1. a housing; 2. a first water inlet channel; 3. a second water inlet channel; 4. a separation zone; 41. a drive member; 42. a centrifuge; 421. a separation chamber; 5. a detection zone; 51. a longitudinal conduit; 511. a clamping hole; 52. a transverse conduit; 53. dividing a cavity; 6. rotating the rod; 61. and (7) a bump.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
The utility model provides a portable water quality testing device, can accomplish water pH valve or other water quality testing operation through simple operation when gathering the water sample, reduces the sample and receives the pollution in the transfer process when improving detection efficiency, improves the degree of accuracy that detects.
Referring to fig. 1 to 3, the portable water quality detection device in this embodiment includes a housing 1, a water inlet is disposed on an upper surface of the housing 1, a suspension wire is connected to a top of the housing 1, a user can hold the suspension wire to lower the housing 1 to a river channel, and water in the river channel can enter the housing 1 from the water inlet.
A separation area 4 and a detection area 5 are arranged in the shell 1; wherein the separation area 4 comprises a driving member 41 and a centrifugal member 42, the fixed end of the driving member 41 is connected to the inner top of the housing 1, and the connecting end of the driving member 41 is kept in a vertically downward state and is connected to the upper surface of the centrifugal member 42, so that the driving member 41 can drive the centrifugal member 42 to rotate in the housing 1.
A hollow separation cavity 421 is formed in the centrifugal piece 42, and a water inlet communicated with the separation cavity 421 is formed in the upper surface of the centrifugal piece 42; a first water inlet channel 2 is arranged between the water inlet of the centrifugal piece 42 and the water inlet of the shell 1, so that the separation cavity 421 is communicated with the outside of the shell 1; when the water inlet of the centrifugal member 42 is aligned with the first water inlet channel 2, the water outside the housing 1 can enter the separation chamber 421 through the first water inlet channel 2; when the driving member 41 is started, the centrifugal member 42 is driven to rotate in place, so as to achieve the effect of high-speed centrifugation.
The first water inlet channel 2 can be fixed in the housing 1, but is not fixedly connected with the centrifugal member 42, that is, when the driving member 41 drives the centrifugal member 42 to rotate, the first water inlet channel 2 does not move, and when the driving member 41 stops rotating and aligns the water inlet of the centrifugal member 42 with the first water inlet channel 2, water outside the housing 1 can flow into the separation chamber 421.
A water outlet is arranged at the bottom of the separation chamber 421, and a hole wall extends upwards from the water outlet of the separation chamber 421, so that a height difference is formed between the hole wall and the bottom of the separation chamber 421. When the water outlet of the separation chamber 421 is sealed by the rotating rod 6, the water sample outside the housing 1 enters the separation chamber 421 through the first water inlet channel 2, and the liquid level in the separation chamber 421 is ensured to be above the hole wall. When the driving member 41 drives the centrifugal member 42 to rotate at a high speed, solid impurities insoluble in water in the water sample in the separation chamber 421 will gather toward the sidewall of the separation chamber 421 during the high-speed rotation, so that the solid impurities are accumulated in the gap between the hole wall and the bottom of the separation chamber 421, that is, the hole wall functions to block the solid impurities and avoid bringing the solid impurities into the detection area 5.
The detection zone 5 is also fixed inside the casing 1 and is positioned right below the separation zone 4; the detection area 5 comprises a rotary channel and a plurality of sub-cavities 53, the detection area 5 can be a cylindrical hollow structure, the plurality of sub-cavities 53 are sequentially arranged on the peripheral side wall in the detection area 5, the interval distance between every two sub-cavities 53 is the same, one surface of every sub-cavity 53, facing the central axis of the shell 1, is provided with a water inlet at the same height, and the shortest distance from the water inlet of every sub-cavity 53 to the vertical central axis of the shell 1 is the same; it is ensured that each of the subchambers 53 is accurately connected when the rotary channel rotates. Each of the sub-chambers 53 may be pre-loaded with a certain amount of chemical reagents, such as different types of acid-base indicators, for reacting with the water body sample, and displaying different colors after the reaction to determine the ionic components and the ph value in the water body sample.
The top end part of the rotating channel is connected with the water inlet of the detection area 5 through a bearing, so that the rotating channel can rotate by taking the water inlet of the detection area 5 as an axis; the water inlet of the detection area 5 is over against the water outlet of the separation cavity 421, the rotary channel is of a hollow structure, and the outer end part of the rotary channel horizontally extends to the water inlet of any sub-cavity 53; so that the water in the separation chamber 421 can enter the detection area 5 without being blocked by the rotating rod 6 and flow into any of the subchambers 53 along the rotating channel.
In this embodiment, the rotating channel includes a transverse pipe 52 and a longitudinal pipe 51, the top end of the longitudinal pipe 51 faces the water outlet of the separation chamber 421, and the nozzle at the bottom end is an open nozzle, so that the rotating rod 6 penetrates into the longitudinal pipe 51 through the nozzle; the pipe body of the longitudinal pipe 51 extends horizontally to form a transverse pipe 52 communicated with the longitudinal pipe 51, and the outer end part of the transverse pipe 52 extends to the water inlet of any sub-cavity 53. When the rotating channel rotates, the transverse pipeline 52 can be accurately connected with the water inlet of one sub-cavity 53 every time the transverse pipeline rotates by a certain angle, so that the water body sample in the separation cavity 421 is transferred to the corresponding sub-cavity 53 to perform corresponding detection operation.
Openings are formed in the bottom of the shell 1, the bottom of the detection area 5 and the bottom of the rotating channel, the rotating rod 6 penetrates through the openings and extends to the water outlet of the separation cavity 421, the outer end of the rotating rod 6 is exposed out of the shell 1, so that a user can hold the outer end of the rotating rod 6 to drive the rotating rod 6 to move up and down, and the opening and closing state of the water outlet of the separation cavity 421 and the conduction state of the rotating channel are determined according to the moving height of the rotating rod 6; when the top of the rotating rod 6 moves to the water outlet of the separation chamber 421, the water outlet of the separation chamber 421 is in a blocked state, and at this time, the water in the separation chamber 421 cannot flow out from the water outlet; when the top of the rotating rod 6 moves down to the bottom of the longitudinal pipeline 51, that is, is located at a position below the joint of the transverse pipeline 52 and the longitudinal pipeline 51, the water outlet of the separation cavity 421, that is, the rotating channel, is in a conducting state, and the water sample in the separation cavity 421 can flow into the transverse pipeline 52 along the longitudinal pipeline 51 and then flow into any sub-cavity 53 to which the transverse pipeline 52 is in butt joint, so as to perform corresponding detection operation.
And be equipped with card hole 511 on the pipe wall of vertical pipeline 51, card hole 511 is located below horizontal pipeline 52 the pole body of rotary rod 6 also is equipped with scalable lug 61, and the flexible state of its lug 61 of accessible electric control works as scalable lug 61 of rotary rod 6 pops out and blocks vertical pipeline 51 when card hole 511, realize rotary rod 6 with rotatory passageway looks joint rotates this moment rotary rod 6 can drive rotatory passageway synchronous rotation, makes rotatory passageway the changeable butt joint of horizontal pipeline 52 divide chamber 53, makes in the water sample in the separation chamber 421 can flow into different branch chamber 53, realizes different detection operations. When the retractable protrusion 61 is ejected and clamped with the rotary channel, the end of the rotary rod 6 is necessarily located at the water outlet of the separation chamber 421, and the rotary channel can be driven to align to different sub-chambers 53 by rotating the rotary rod 6 when the water outlet of the separation chamber 421 is blocked; when the retractable protrusion 61 is retracted into the rotating rod 6, the rotating rod 6 can be separated from the rotating channel and starts to move up and down under the pushing of external force.
In order to improve the accuracy of the up-and-down movement of the rotating rod 6, the water outlet of the separation chamber 421, the water inlet of the detection area 5, the longitudinal pipe 51 and the rotating rod 6 are all positioned on the vertical central axis of the housing 1, so that the rotating rod 6 moves more smoothly; meanwhile, the connecting end of the driving element 41 and the axial line of the centrifugal element 42 are coincided with the vertical central axis of the shell 1, so that the centrifugal element 42 is more stable when rotating at a high speed.
In order to improve the sealing property when the rotating rod 6 blocks the water outlet of the separation cavity 421, a flexible water retaining sheet is arranged at the top end of the rotating rod 6, and the flexible water retaining sheet can fill a gap between the end of the rotating rod 6 and the water outlet of the separation cavity 421, so that the sealing property is improved; meanwhile, the flexible water guard sheet is elastically deformed when the rotating rod 6 moves between the separation chamber 421 and the longitudinal pipe 51, and the flexible water guard sheet does not affect the normal movement of the rotating rod 6.
Because different chemical reagents are arranged in each sub-cavity 53, the detection result is embodied in a mode that the liquid presents different colors; in order to facilitate observation of the color of the reaction result, the shell 1 is made of a transparent material, so that a user can directly observe the reaction result through the shell 1; simultaneously still be equipped with second inhalant canal 3 on the casing 1, second inhalant canal 3 toward detection zone 5 direction extension and with arbitrary in the detection zone 5 divide the chamber 53 to be linked together, when gathering the water sample, water warp second inhalant canal 3 direct inflow arbitrary one divide in the chamber 53, should divide chamber 53 to be used for saving original water sample to do not do any detection operation, make other divide the testing result in the chamber 53 can directly do the comparison with this comparison sample, make the contrast nature of detection stronger, the testing result is more definite.
In addition, the housing 1 may be configured as an open-close type box structure, and the open-close position of the housing 1 is set between the separation area 4 and the detection area 5; and the separation chamber 421 and each sub-chamber 53 are provided with cleaning ports, and each cleaning port is provided with an anti-leakage plug for blocking the cleaning port. When the structure in the shell 1 needs to be cleaned, the shell 1 can be opened, and each position in the shell 1 can be washed by pulling off the anti-leakage plug; or when a corresponding chemical reagent needs to be added into each sub-cavity 53, the shell 1 can be opened and the anti-leakage plug corresponding to the sub-cavity 53 can be pulled away, the sub-cavity 53 is filled with the corresponding chemical reagent, then the anti-leakage plug and the shell 1 are covered, and then the shell 1 can be put into water to collect the water body sample of the river reach.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. The utility model provides a portable water quality testing device which characterized in that includes:
a housing having a separation zone and a detection zone disposed therein;
the separation area comprises a driving piece and a centrifugal piece, the fixed end of the driving piece is connected to the inner top of the shell, and the connecting end of the driving piece is connected with the centrifugal piece; a hollow separation cavity is formed in the centrifugal piece, and a first water inlet channel is formed between the centrifugal piece and the shell to enable the separation cavity to be communicated with the outside of the shell; a water outlet is arranged at the bottom of the separation cavity;
the detection area is positioned right below the separation area and comprises a rotary channel and a plurality of sub-cavities, the plurality of sub-cavities are sequentially arranged on the peripheral side wall in the detection area, and a water inlet positioned at the same height is formed in one surface of each sub-cavity, which faces to the central axis of the shell; the top end part of the rotating channel is connected with a water inlet of the detection area through a bearing, the water inlet of the detection area is over against a water outlet of the separation cavity, and the outer end part of the rotating channel horizontally extends to a water inlet of any sub-cavity;
the rotating rod penetrates through the openings formed in the bottom of the shell, the bottom of the detection area and the bottom of the rotating channel and extends to the water outlet of the separation cavity; the outer end of the rotating rod is exposed out of the shell, the rotating rod is clamped with the rotating channel, and when the rotating rod and the rotating channel are clamped, the rotating channel is driven by the rotating rod to rotate so that the rotating channel is communicated with any sub-cavity.
2. The portable water quality detection device of claim 1, wherein a hole wall extends upwards from the water outlet of the separation cavity, so that a height difference is formed between the hole wall and the bottom of the separation cavity.
3. The portable water quality detection device of claim 2, wherein liquid outside the housing enters the separation chamber through the first water inlet channel, and the liquid level in the separation chamber is ensured to be above the hole wall.
4. The portable water quality detection device of claim 1, wherein the shortest distance from the water inlet of each sub-chamber to the vertical central axis of the housing is the same.
5. The portable water quality detection device according to claim 4, wherein the rotary channel comprises a transverse pipeline and a longitudinal pipeline, the top end of the longitudinal pipeline is opposite to the water outlet of the separation cavity, and the pipe orifice at the bottom end of the longitudinal pipeline is a non-closed pipe orifice, so that the rotary rod penetrates into the longitudinal pipeline through the pipe orifice; the pipe body of the longitudinal pipeline extends to the horizontal direction to form a transverse pipeline communicated with the longitudinal pipeline, and the outer end part of the transverse pipeline extends to the water inlet of any sub-cavity.
6. The portable water quality detection device according to claim 5, wherein the connection end of the driving member, the water outlet of the separation chamber, the water inlet of the detection zone, the longitudinal pipeline and the rotary rod are all located on a vertical central axis of the housing.
7. The portable water quality detection device according to claim 6, wherein a flexible water blocking sheet is arranged at the top end of the rotating rod, and the flexible water blocking sheet is elastically deformed when the rotating rod moves between the separation cavity and the longitudinal pipeline.
8. The portable water quality detection device of claim 1, wherein the housing is further provided with a second water inlet channel, and the second water inlet channel extends towards the detection area and is communicated with any sub-cavity in the detection area.
9. The portable water quality detection device according to claim 1, wherein the housing is of an open-close type box structure, and the open-close position of the housing is arranged between the separation area and the detection area; and the separation cavity and each sub-cavity are respectively provided with a cleaning opening, and each cleaning opening is provided with a leakage-proof plug for blocking the cleaning opening.
10. The portable water quality detection device according to claim 1, wherein the housing is made of transparent material, and a suspension wire is connected to the top of the housing.
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|---|---|---|---|
| CN202010424818.1A CN111537507B (en) | 2020-05-19 | 2020-05-19 | Portable water quality testing device |
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| CN202010424818.1A CN111537507B (en) | 2020-05-19 | 2020-05-19 | Portable water quality testing device |
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| CN209753141U (en) * | 2019-01-15 | 2019-12-10 | 湖南海泰博农生物科技有限公司 | Traditional chinese medicine extract liquid centrifuge |
| CN209624462U (en) * | 2019-02-18 | 2019-11-12 | 张继亭 | A kind of water quality detection device |
| CN110006708A (en) * | 2019-04-28 | 2019-07-12 | 常州机电职业技术学院 | A kind of runoff water sample acquisition device |
| CN111054129A (en) * | 2019-12-26 | 2020-04-24 | 苏州鸿本机械制造有限公司 | Kitchen waste machine with adjusting function |
| CN111111513A (en) * | 2020-01-14 | 2020-05-08 | 李文锦 | Industrial wastewater treatment and reclaimed water recycling device and using method thereof |
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