CN114397419A - Monitor for monitoring biological adhesion - Google Patents
Monitor for monitoring biological adhesion Download PDFInfo
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- CN114397419A CN114397419A CN202210076872.0A CN202210076872A CN114397419A CN 114397419 A CN114397419 A CN 114397419A CN 202210076872 A CN202210076872 A CN 202210076872A CN 114397419 A CN114397419 A CN 114397419A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/186—Water using one or more living organisms, e.g. a fish
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/186—Water using one or more living organisms, e.g. a fish
- G01N33/1866—Water using one or more living organisms, e.g. a fish using microorganisms
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Abstract
The invention discloses a monitor for monitoring biological adhesion, which comprises a water tank with a cover and a monitoring mechanism. The inside of the water tank with the cover is divided into an upper layer and a lower layer by a partition board; the upper layer side wall of the water tank is provided with a water outlet, the lower layer side wall is provided with a water inlet and a water outlet, one end of the water inlet is connected with the external part to be detected, and the other end of the water inlet is connected with a flow divider arranged in the lower layer of the water tank; the monitoring mechanism comprises a test pipe, a sieve pipe, a test hanging piece and a support frame, the test pipe and the sleeve are connected with the partition plate through a threaded connecting piece and communicated with the lower layer of the water tank, and the sieve pipe and the test hanging piece are arranged in the sleeve. The invention can simulate different water using working conditions by adjusting the flow rates of the liquid in the test tube and the sleeve; the attachment conditions of fouling organisms on the surfaces of different substrates can be observed through the built-in test tube, sieve tube and test piece; the bypass can be connected to the pipeline of the engineering equipment to be monitored, and the natural water area can be monitored by an external water pump, so that a scientific basis is provided for timely adjusting the anti-biological attachment measures of the engineering.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a monitor for monitoring biological adhesion.
Background
The adhesion growth of organisms on the surfaces of water treatment equipment, pipelines and structures thereof can not only cause operation obstacles such as corrosion, blockage and the like of a water treatment system, but also bring unnecessary cost increase to industrial production, so the organism adhesion prevention technology is one of the key technologies in the field of water treatment. In order to realize effective and scientific prevention and treatment on biological adhesion, necessary monitoring means must be added. Currently, biological monitoring/detection in the field of water treatment generally aims at microbial populations such as bacteria and algae, for example, a plate counting method and an MPN method for detecting bacteria by a culture method, a chlorophyll a measuring method for detecting algae by a photometry method, and a biomembrane on-line monitor for monitoring bacterial biomembranes by using current signals. The attachment growth of the microorganisms and algae, and the attachment growth of the microorganisms and algae, such as barnacles, oysters, hydroids and other large scale fouling organisms, which are not only possible to carry out attachment growth in the water treatment system but also possible to carry out attachment growth in a plurality of processes of the water treatment system, so that the microorganisms can be effectively monitored and detected, and the necessary guarantee can be provided for preventing the attachment of the microorganisms.
The monitoring of large fouling organisms has been focused in the prior patent literature on the monitoring of adult biological activity, such as application publication No. CN 202010060240.6; fouling organism sampling research devices with a marine framework structure, such as application publication No. cn202022222674.x; slime and marine life monitoring devices with simulated heat exchangers, such as application publication No. cn202021186729. x. The sensitivity of adult organisms to biocides is different from that of larval and juvenile organisms, and generally adult organisms will have higher tolerance to biocides than larval and juvenile organisms, and therefore monitoring only adult biological activity does not scientifically guide economic dosing of biocides. The current state of the submerged sampling and monitoring method adopted by cn202022222674.x is completely natural, and obviously cannot truly reflect the operation state of the water treatment system under the condition of no control. CN202021186729.X simulation heat exchanger adopts fixed connection mode, and inconvenient observation at any time, and the experiment is often disposable, and the main object monitored is the slime that bacterium and alga formed.
Therefore, it is an urgent need to provide a monitor for monitoring the attachment of living organisms to eliminate the above-mentioned disadvantages of the prior art.
Disclosure of Invention
The invention aims to provide a monitor for monitoring biological adhesion, which solves the problems in the prior art, realizes monitoring of different processes, adopts different types and different materials of substrates by simulating different liquid flow rates to simulate the wading surfaces of different devices of a water treatment system, creates an adhesion environment more similar to the actual operation working condition of the devices so as to truly write the adhesion state of fouling organisms, and is convenient to take out and observe at any time by installing a test tube, a sieve tube and a test hanging piece through a threaded connector so as to grasp the adhesion state of the organisms in time.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a monitor for monitoring biological adhesion, which is characterized in that: comprises a water tank with a cover and a monitoring mechanism. The inside of the water tank with the cover is divided into an upper layer and a lower layer by a partition plate, the partition plate is arranged at the position close to the bottom of the water tank with the cover, and the partition plate is provided with 2 to a plurality of threaded connectors; a water outlet is arranged on the upper layer side wall of the water tank with the cover close to the partition plate, a water inlet and a water outlet are arranged on the lower layer side wall of the water tank with the cover, one end of the water inlet is connected with the flowmeter and the valve through a liquid pipeline and is connected with an external part to be detected, and the other end of the water inlet is connected with a flow divider arranged in the lower layer of the water tank with the cover through a liquid pipeline; the monitoring mechanism comprises a test pipe, a sieve pipe, a test hanging piece, a support frame and a threaded connector, the test pipe is connected with the partition plate through the threaded connector and communicated with the lower layer of the water tank with the cover, and the sieve pipe and the test hanging piece are installed in the test pipe. The test tubes can be arranged in 2 to a plurality of numbers and are used for installing sieve tubes and test hanging pieces made of different materials or specifications.
The test tubes of the present invention can be arranged in 2 to more groups simultaneously so as to obtain more reliable results through analysis of parallel test samples. The invention can be communicated with engineering equipment, directly monitors the risk of forming biological fouling of the engineering equipment and the effectiveness of anti-biological adhesion measures, can also take seawater in natural sea area through the water pump, monitors the adhesion amount of fouling organisms in engineering water taking, and provides scientific basis for timely adjusting the anti-biological adhesion measures of the engineering.
Preferably, the surface of the partition plate of the water tank with the cover is provided with a hole and is connected with an external straight-through wire, and the external straight-through wire is made of polyvinyl chloride (PVC) with the diameter phi of 25mm and used for installing a test tube and a test tube; the water tank with the cover is provided with 2 water outlets, one water outlet is arranged on the side wall of the upper layer of the water tank with the cover close to the partition plate and used for discharging liquid in the monitoring process, and the other water outlet is arranged on the lower layer of the water tank with the cover and used for discharging residual liquid on the lower layer of the water tank with the cover after the monitoring is finished; the flow divider is a PVC pipe with one end closed and holes uniformly distributed on the pipe wall of the bottom, and is erected on the bottom plate of the water tank with the cover, and the pipe diameter is phi 50 mm-phi 110 mm.
Preferably, the test tube is one or more than two of stainless steel, brass, concrete, glass fiber reinforced plastic and polyvinyl chloride resin (PVC), the diameter phi of the test tube is 20 mm-110 mm, the length of the test tube is 400 mm-500 mm, and the bottom of the test tube is directly connected with the outer thread on the water tank partition plate with the cover through an inner thread connecting piece.
Preferably, the sieve tube is made of stainless steel, the diameter phi of the sieve tube is 20-110 mm, the length of the sieve tube is 400-500 mm, the diameter of a sieve hole is 0.15-1.00 mm, the shape of the sieve tube is one of square, rectangular or circular, and the bottom of the sieve tube is processed into a phi 25mm external thread structure for connecting with an internal thread in a test tube; the test hanging piece is selected from one or more than two of stainless steel, brass, concrete, glass fiber reinforced plastic and polyvinyl chloride resin (PVC), the specification is 150mm multiplied by 30 mm-200 mm multiplied by 10mm, two 7mm holes are respectively arranged in the middle of the position 10mm away from the top and the bottom and are used for installing the test hanging piece on the supporting frame; the support frame is a PVC strip with the thickness of 1.5 mm-5.0 mm, the support frame is provided with 2 groups of fixing holes, each group is used for installing 1 test hanging piece, and a 7mm hole is formed at a position 7mm away from the top and used for fixing the support frame on a test tube.
Preferably, the test tube is a PVC tube with the diameter of 32 mm-110 mm, the length of the test tube is 400 mm-500 mm, the top of the test tube is provided with a threaded cap, the bottom of the test tube is fixedly provided with an inner thread through hole with the diameter of phi 25mm, one end of the inner thread through hole is used for being connected with an outer thread through hole on the water tank partition plate with the cap, and the other end of the inner thread through hole is used for installing a sieve tube in the monitoring mechanism; a7 mm hole is formed in the position 7mm away from the top of the test pipe and used for installing a support frame.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention can be flexibly connected to different procedures of the water treatment system, can simulate the actual working conditions of the different procedures by adjusting the flow of the liquid entering the box body, can simulate different equipment matrix types by the monitoring mechanism, can be observed at any time, is convenient to discover the attachment of organisms in time, is mainly used for monitoring the juvenile/juvenile state of large fouling organisms at the initial attachment stage, and has more scientific and more effective guidance and auxiliary effects on water treatment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a monitor for monitoring biofouling according to the present invention;
FIG. 2 is a schematic view of the structure of a test coupon according to the present invention;
FIG. 3 is a schematic view of the test coupon support frame of the present invention;
figure 4 is a schematic of the screen of the present invention.
The water tank comprises a water tank cover handle 1, a water tank cover handle 2, a water tank cover 3, a water tank body side handle 4, a water flow direction 5, a support frame 6, a water tank with a cover 7, a water tank reinforcing ring 8, a test pipe 9, a threaded connector 10, a partition plate 11 and a water outlet; 12. the device comprises a water outlet, 13, a valve, 14, a flowmeter, 15, a liquid pipeline, 16, a water inlet, 17, a flow divider, 18, a test hanging piece, 19, a fixing hole, 20, a support frame, 21, a fixing clamping ring, 22, a threaded connector, 23, a handle, 24, a sealing cover, 25 and a screen pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a monitor for monitoring biological adhesion, which solves the problems in the prior art, realizes monitoring of different procedures, simulates the wading surfaces of different equipment of a water treatment system by simulating different liquid flow rates and selecting different types and different materials of substrates, creates an adhesion environment more similar to the actual operation working condition of the equipment so as to truly write the adhesion state of fouling organisms, and installs a test tube, a sieve tube and a test hanging piece through a threaded connector, thereby being convenient to take out and observe at any time and grasping the adhesion state of the organisms in time.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1-4, the present invention provides a monitor for monitoring biofouling, which includes a water tank 6 with a cover and a monitoring mechanism. The top of the water tank 6 with the cover is hinged with a water tank cover 2, the water tank cover 2 is provided with a water tank cover handle 1, the side surface of the water tank 6 with the cover is provided with a water tank body side handle 3, the inside of the water tank 6 with the cover is divided into an upper layer and a lower layer by a partition plate 10, the partition plate 10 is arranged at the position close to the bottom of the water tank 6 with the cover, and the partition plate 10 is provided with 2 to 22 threaded connectors; a water outlet 11 is arranged on the upper layer side wall of the water tank with the cover 6 close to the partition plate 10, a water inlet 16 and a water outlet 12 are arranged on the lower layer side wall of the water tank with the cover 6, one end of the water inlet 16 is connected with a flowmeter 14 and a valve 13 through a liquid pipeline 15 and is connected with an external part to be detected, and the other end of the water inlet 16 is connected with a flow divider 17 arranged in the lower layer of the water tank with the cover 6 through the liquid pipeline 15; the monitoring mechanism comprises a test pipe 8, a sieve pipe 25, a test hanging piece 18, a support frame 20 and a threaded connector, the test pipe 8 or a sleeve is connected with the partition plate 10 through the threaded connector and communicated with the lower layer of the water tank 6 with the cover, a water tank reinforcing ring 7 is further arranged in the water tank 6 with the cover, the test pipe 8 penetrates through the water tank reinforcing ring 7 and the support frame 5, and the sieve pipe 25 and the test hanging piece 18 are installed in the test pipe 8. The test tubes 8 can be arranged in 2 to more than one number and are used for installing sieve tubes 25 and test hanging pieces 18 of different materials or specifications.
The water tank 6 with the cover is made of a PVC plate with the wall thickness of 10mm, the type is cylindrical with the diameter of phi 500mm and the height of 700mm, a partition plate 10 is arranged 120mm away from the bottom, the partition plate 10 is made of the PVC plate with the wall thickness of 10mm, the surface of the partition plate 10 is provided with holes and is connected with an external thread through, the external thread through material is polyvinyl chloride (PVC), the diameter of phi 25mm and is used for installing a test tube 8 or a sleeve, and specifically, 4 circular holes with the diameter of phi 25mm and through external threads are uniformly distributed on the surface of the partition plate 10; a water outlet 12 and a water inlet 16 are respectively arranged on the side walls 20mm and 50mm away from the bottom of the water tank with the cover 6, the water tank with the cover 6 is provided with 2 water outlets, one water outlet 11 is arranged on the side wall close to the partition plate on the upper layer of the water tank, namely the side wall 25mm away from the upper surface of the partition plate 10 and is used for discharging liquid in the monitoring process, and the other water outlet 12 is arranged on the lower layer of the water tank and is used for discharging residual liquid on the lower layer of the water tank after the monitoring is finished; the water outlet 12 and the water outlet 11 are both connected with a phi 20mm PVC pipe and are provided with valves; the water inlet 16 is respectively connected with a PVC pipe with the diameter of 32mm on the outer side of the water tank 6 with the cover and is sequentially provided with a flowmeter 14 and a valve 13, the inner side of the water tank 6 with the cover is connected with a flow divider 17, the flow divider 17 adopts a PVC pipe with the length of 300mm and the diameter of 50mm, one end of the flow divider is closed, round holes with the diameter of 5mm are uniformly distributed on the pipe wall of the bottom of the flow divider 17, and the flow divider 17 is fixed on a PVC plate at the bottom of the water tank 6 with the cover through a bracket.
The number of the test tubes 8 or the sleeves is 2, PVC tubes with the length of 500mm and the diameter of 32mm are adopted, and the PVC tubes are connected to the outer wire straight-through holes on the partition plate 10 through the inner wires with the diameter of 25mm and communicated with the lower layer of the water tank 6 with the cover.
2 sieve pipes 25 are arranged, stainless steel pipes with the length of 400mm and the diameter of phi 25mm are adopted, a sealing cover 24 is arranged at the top of each sieve pipe 25, a lifting handle 23 is fixed on each sealing cover 24, the diameter of each sieve hole is 0.15mm, and a connecting piece which is processed into an external thread is welded at the bottom of each sieve pipe and used for being connected with the test pipe 8.
The experimental hanging piece 18 is provided with 2 groups, is made of a PVC plate with the wall thickness of 10mm, has the specification of 150mm multiplied by 30mm, is provided with two 7mm holes 19 in the middle from the 10mm positions of the top and the bottom respectively, and is used for installing the experimental hanging piece 18 on the support frame 20, and the bottom of the experimental hanging piece 18 is provided with a fixed snap ring 21.
The test process of the monitor for monitoring the biological adhesion comprises the following steps:
example 1:
the bypass is connected to a low-temperature multi-effect seawater desalination device of a certain power plant for implementation. In order to monitor the potential condition of biological adhesion growth in the low-temperature multi-effect seawater desalination device after dechlorination treatment, the device is connected to the water inlet pipe side of a coarse filter of the low-temperature multi-effect seawater desalination device. Seawater is shunted to the invention from the inlet pipe of the coarse strainer, enters the shunt 17 through the valve 13, the flowmeter 14 and the water inlet 16, enters the lower layer of the water tank with the cover 6 through the shunt 17, then enters the test pipe 8 and the sieve pipe 25 through the straight-through arranged on the clapboard 10 in a counter-current mode, then enters the upper layer of the water tank with the cover 6 in an overflow mode, and flows out of the monitor through the water outlet 11, thus completing one-time operation.
In the operation process of the invention, in order to simulate the water flow working condition of the low-temperature multi-effect seawater desalination device, the amount of seawater entering the device is adjusted by the valve 13 and is measured by the flowmeter 14. The value of the amount of seawater entering the device is mainly designed according to the flow speed of the seawater in the coarse filter passing through the filter pipe, and the flow is calculated according to the specifications of the test pipe and the sleeve 8. In the embodiment, the flow speed of the seawater passing through the filter pipe is about 0.8-1.2 m/s, and the diameters of the test pipe and the sleeve pipe areAnd if the diameter is 32mm, the flow range to be controlled is 38-57L/min. At this flow rate, after the monitor was operated for 15 days at 4 months, it was found that the hydroid adhered to both the filter tube wall and the test tube wall, and the average adhered area was about 1500mm2The amount of adhesion was about 2.2mg wet weight/mm2. The method shows that the dechlorinated seawater has the risk of biological adhesion after entering a seawater desalination device, and effective biological adhesion prevention treatment measures need to be further taken for the seawater.
Example 2:
the seawater circulation cooling engineering is carried out in a power plant in the north. In order to monitor the biological adhesion condition of the water intake pipeline after the chlorination treatment, the invention is connected to the water inlet pipe side of the circulating water pump. Seawater is shunted to the invention from a water inlet pipe, enters a shunt 17 through a valve 13, a flowmeter 14 and a water inlet 16, enters the lower layer of the water tank with the cover 6 through the shunt 17, then enters a test tube and a sleeve 8 through a straight way arranged on a clapboard 10 in a counter-current way, then enters the upper layer of the water tank with the cover 6 in an overflow way, and flows out of a monitor through a water outlet 11, thus completing one-time operation. And a test hanging piece made of a PVC plate is arranged in the sleeve.
In the running process of the invention, the working condition of water taking is simulated, the flow rate is 1.0m/s as the design basis, the quantity of seawater entering the invention is adjusted to be 48L/min through the valve 13, and the flow meter 14 is used for metering the seawater. At the flow rate, after the monitor runs for 3 months, barnacles and coiled worms are found to be attached on the surface of the test hanging piece, and the average attachment area is about 250mm2The amount of adhesion was about 1.7mg wet weight/mm2. Indicating that the chlorination treatment adopted at the water intake can not completely inhibit the attachment of fouling organisms, and a shellfish killing treatment measure needs to be added before the seawater enters the condenser.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (6)
1. A monitor for monitoring biofouling, comprising: the water tank with the cover is internally divided into an upper layer and a lower layer by a partition plate, and the partition plate is arranged in the water tank with the cover and close to the bottom; a water outlet is arranged on the upper layer side wall of the water tank with the cover close to the partition plate, and a water inlet and a water outlet are arranged on the lower layer side wall of the water tank with the cover; one end of the water inlet is connected with the flowmeter and the valve through a liquid pipeline and is connected with an external part to be detected, and the other end of the water inlet is connected with a flow divider arranged in the lower layer of the water tank with the cover through a liquid pipeline; the monitoring mechanism comprises a test pipe, a sieve pipe and a test hanging piece, a plurality of threaded interfaces are arranged on the partition plate, the test pipe is connected with the partition plate through the threaded interfaces and communicated with the lower layer of the water tank with the cover, and the sieve pipe and the test hanging piece are installed in the test pipe.
2. The monitor for monitoring biofouling according to claim 1, wherein: the surface of the partition board is provided with a hole and is connected with an external thread straight-through part, the external thread straight-through part is made of polyvinyl chloride resin, and the test tube is assembled at the external thread straight-through part on the partition board through the threaded connector.
3. The monitor for monitoring biofouling according to claim 1, wherein: the flow divider is a PVC pipe with one end closed and the bottom pipe wall uniformly provided with holes, and the flow divider is erected on the bottom plate of the water tank with the cover.
4. The monitor for monitoring biofouling according to claim 1, wherein: the test tubes are made of one or more of stainless steel, brass, concrete, glass fiber reinforced plastic or polyvinyl chloride resin.
5. The monitor for monitoring biofouling according to claim 1, wherein: the sieve tube is made of stainless steel, and an outer thread threaded structure used for being connected with an inner thread of the test tube is machined at the bottom of the sieve tube.
6. The monitor for monitoring biofouling according to claim 1, wherein: the test hanging piece is made of one or more of stainless steel, brass, concrete, glass fiber reinforced plastic or polyvinyl chloride resin, two holes are formed in the test hanging piece in the middle at a position 10mm away from the top and the bottom, and the formed holes are used for installing the test hanging piece on the supporting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210076872.0A CN114397419A (en) | 2022-01-24 | 2022-01-24 | Monitor for monitoring biological adhesion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210076872.0A CN114397419A (en) | 2022-01-24 | 2022-01-24 | Monitor for monitoring biological adhesion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114397419A true CN114397419A (en) | 2022-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210076872.0A Pending CN114397419A (en) | 2022-01-24 | 2022-01-24 | Monitor for monitoring biological adhesion |
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| Country | Link |
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| CN (1) | CN114397419A (en) |
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2022
- 2022-01-24 CN CN202210076872.0A patent/CN114397419A/en active Pending
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