CN111024912A - Ship wastewater pretreatment type detection device - Google Patents
Ship wastewater pretreatment type detection device Download PDFInfo
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- CN111024912A CN111024912A CN201911379698.1A CN201911379698A CN111024912A CN 111024912 A CN111024912 A CN 111024912A CN 201911379698 A CN201911379698 A CN 201911379698A CN 111024912 A CN111024912 A CN 111024912A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 92
- 238000001514 detection method Methods 0.000 title claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 114
- 238000000926 separation method Methods 0.000 claims abstract description 31
- 238000005070 sampling Methods 0.000 claims abstract description 21
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000005406 washing Methods 0.000 abstract description 75
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 239000007789 gas Substances 0.000 description 8
- 239000012535 impurity Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
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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
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Abstract
The invention relates to the technical field of wastewater treatment, and particularly discloses a ship wastewater pretreatment type detection device which comprises a sampling pump, a sample outlet pump, a separation tank and a collection tank, wherein a water inlet pipe is arranged in a tank body of the separation tank, the bottom of the water inlet pipe is fixedly connected to the bottom of the tank body of the separation tank, a water outlet is arranged on the water inlet pipe, the bottom of the water inlet pipe is communicated with a water outlet end of the sampling pump, a drainage outlet and an exhaust port are arranged on the separation tank, and the drainage outlet is communicated with a water inlet end of the detection device; the height of the water outlet is higher than that of the water inlet and outlet, and the position of the air outlet is higher than that of the water outlet; the collecting tank is provided with a water return port communicated with a water outlet pipe of the detection device. This scheme is used for solving and adopts the sample pump directly to carry washing waste water pump to detection device on and the washing waste water that detects the completion directly is walked the problem of the influence washing waste water detection accuracy of existence by the pump of drawing a sample among the prior art.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a ship wastewater pretreatment type detection device.
Background
At present, washing wastewater can be left after the ship waste gas is desulfurized by adopting washing desulfurization, the current international maritime organization puts strict requirements on the discharge of the washing wastewater generated by the ship desulfurization, and the limit values of pH value, turbidity, temperature, polycyclic aromatic hydrocarbon and the like in the washing wastewater are regulated, so that the washing wastewater can be discharged into the ocean after being detected to be qualified by a detection device.
In the prior art, a pump body is adopted to directly pump desulfurized washing wastewater and send the washing wastewater into a detection device for detection (the pump body used at the moment is called a sampling pump), and the detected washing wastewater is directly pumped into the sea by another pump body (the pump body is called a sampling pump); although this method enables detection of washing wastewater, there are the following problems:
first, solid impurities contained in the washing wastewater are directly pumped into the sensing device by the sampling pump, so that the sensing device is worn or clogged.
Secondly, directly take out detection device with washing waste water and detect, the in-process of sampling pump sending washing waste water for contain a large amount of bubbles and produce the torrent in the washing waste water, and then influence detection device and to the accuracy that washing waste water detected (detecting device detects that some chemistry is quick, it is quick, ion is quick, the photoelectric technology class sensor is often used to, the bubble exists the testing result that can influence photoelectric technology class sensor, make the testing result distortion, the torrent then can make the testing result undulant big, unstability).
And thirdly, the washing wastewater is directly pumped to the ocean by the sample outlet pump after being detected, the sample outlet pump is communicated with the detection device, and the detection accuracy of the detection device is influenced by the negative pressure generated by the sample outlet pump in the process of pumping the washing wastewater.
Disclosure of Invention
The invention aims to provide a ship wastewater pretreatment type detection device, and solves the problem that in the prior art, a sampling pump is adopted to directly pump washing wastewater to a detection device, and the detection accuracy of the washing wastewater is influenced because the detected washing wastewater is directly pumped out by the sampling pump.
In order to achieve the above object, the basic scheme of the invention is as follows:
the ship wastewater pretreatment type detection device comprises a sampling pump, a sample outlet pump, a separation tank and a collection tank, wherein a water inlet pipe is arranged in a tank body of the separation tank, the bottom of the water inlet pipe is fixedly connected to the bottom of the tank body of the separation tank, a water outlet is formed in the water inlet pipe, the bottom of the water inlet pipe is communicated with a water outlet end of the sampling pump, a drainage outlet and an air outlet are formed in the separation tank, and the drainage outlet is communicated with a water inlet end of the detection device; the height of the water outlet is higher than that of the water inlet and outlet, and the position of the air outlet is higher than that of the water outlet; the collecting tank is provided with a water return port communicated with a water outlet pipe of the detection device.
Compare the beneficial effect in prior art:
when the scheme is adopted, the washing wastewater is pumped into the water inlet pipe of the separation tank through the sampling pump, enters from the bottom of the water inlet pipe and flows to the bottom of the tank body of the separation tank from the water outlet, the washing wastewater needs to be stored in the tank body of the separation tank to the height of the drainage outlet and then overflows from the drainage outlet, and the washing wastewater flowing out of the drainage outlet enters the detection device to be detected; the washing wastewater detected by the detection device enters the collection tank from the water outlet pipe of the detection device and the water return port of the collection tank, and the washing wastewater entering the collection tank is pumped into the sea by the sample pump.
In this scheme, the delivery port of inlet tube highly is higher than the bottom of inlet tube, washing waste water can slowly flow to the jar body bottom of knockout drum along the outer wall of inlet tube after the delivery port is discharged, at the in-process that washing waste water slowly flows, bubble among the washing waste water floats at the upper surface of washing waste water, along with the bubble constantly increases in the jar of knockout drum, fuse mutually between the bubble and form bigger bubble, when the bubble volume reaches the certain degree, the bubble can break, gas in the bubble is discharged from the gas vent, make from the bubble content in the washing waste water through the discharge outlet discharge reduce by a wide margin, compare and there is the bubble in washing waste water among the prior art and make the unsafe condition of testing result, make follow-up more accurate relatively to the testing result of washing waste water in this scheme.
When this scheme of adoption, washing waste water need stay the height of drainage export in the jar body of knockout drum, goes out from drainage export overflow again for get into washing waste water and follow the slow automatic outflow in the knockout drum, the torrent that brings because of the sample pump draws water can be solved to the mode of this kind of overflow, compares in prior art, is favorable to improving the accuracy of washing waste water inspection.
In addition, in this in-process, carried out impurity treatment to the washing waste water that gets into detection device, washing waste water need remain a period in the jar of knockout drum and then discharge from the drainage export, and washing waste water remains in the in-process of the jar of knockout drum, has stood washing waste water in other words for some impurity in the washing waste water deposits, reduces the probability that the washing waste water that gets into in the detection device blockked up detection device.
Further, the water inlet end of the sampling pump is connected with a filter; and a filter is adopted to filter out large-volume solid impurities in the washing wastewater.
Furthermore, a water outlet and an air inlet are arranged on the tank body of the collecting tank, the water outlet is communicated with the water inlet end of the sample outlet pump, and the air inlet is communicated with the external atmosphere.
Has the advantages that: set up the air inlet on the jar body of holding vessel to in external atmosphere can get into the holding vessel, with the atmospheric pressure in the balanced holding vessel, avoid the atmospheric pressure change in the holding vessel and influence detection device to the detection of washing waste water.
Further, an air inlet valve is connected to the air inlet.
Has the advantages that: the air inlet valve is convenient for external air to enter the collecting tank through the air inlet valve so as to ensure that the air pressure in the collecting tank is consistent with the external atmospheric pressure; in addition, the air inlet valve also has good sealing performance, and washing wastewater in the collecting tank is prevented from being discharged from the air inlet.
Further, the gas vent of knockout drum and the end intercommunication of intaking of a kind pump, a kind pump adopts the diaphragm pump.
Has the advantages that: the gas separated by the separating tank and the washing wastewater collected by the collecting tank are pumped to the ocean together through the diaphragm pump, so that the utilization rate of the sample outlet pump is improved.
Furthermore, a regulating valve is connected between the exhaust port of the separating tank and the water inlet end of the sample outlet pump.
Has the advantages that: the negative pressure applied to the separation tank by the sample outlet pump is adjusted by the adjusting valve.
Furthermore, a chip removal port is arranged at the bottom of the tank body of the separating tank, and a plug is detachably connected to the chip removal port.
Has the advantages that: the chip removal port is convenient for discharging impurities in the washing wastewater deposited at the bottom of the tank body of the separating tank.
Furthermore, a regulating valve is connected between the drainage outlet and the water inlet end of the detection device.
Has the advantages that: the flow of the washing wastewater entering the detection device is convenient to adjust by arranging the adjusting valve.
Further, a water drain pipe is arranged in the tank body of the separation tank, and a water drain outlet is formed in the top of the water drain pipe.
Has the advantages that: compare in the condition that the drainage outlet set up at the separator tank lateral wall, washing waste water can flow into the drain pipe in the top of drain pipe is all around for the flow of drainage outlet is bigger.
In addition, through the installation drain pipe for need not set up the drainage export on the jar body of knockout drum, the wholeness of the knockout drum jar body is better, and under the condition that the wall thickness of the knockout drum jar body is the same with the material, the knockout drum jar body intensity is higher relatively.
Further, the water outlet end of the sample outlet pump is connected with a ball valve; the ball valve is used for controlling the communication between the water outlet end of the pump body and the outside, so that external sundries are prevented from directly entering the pump body from the water outlet end of the pump body.
Drawings
FIG. 1 is a front view of a first embodiment of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic diagram of a connection relationship according to a first embodiment of the present invention;
FIG. 4 is a front cross-sectional view of the separator tank of FIG. 3;
FIG. 5 is a front cross-sectional view of the drain pipe of the separator tank of FIG. 4 mounted to the lower cover by a joint;
FIG. 6 is a front cross-sectional view of the collection canister of FIG. 3 without the intake valve attached;
FIG. 7 is a schematic diagram of the connection relationship according to the second embodiment of the present invention;
fig. 8 is a front sectional view of the separation tank of fig. 7.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a separation tank 1, an upper cover 2, an outer pipe 3, a lower cover 4, a water inlet 41, a water outlet 42, a chip removal port 43, a water inlet pipe 5, a water outlet 51, a guide sleeve 44, a water discharge pipe 6, a plug 7, a limiting sleeve 21, an exhaust port 31, a connector 10, a frame 8, a filter 11, a collection tank 12, a sampling pump 13, a water return port 14, an air inlet 15, a water discharge port 16, an air inlet valve 17 and a sample discharge pump 18.
Example one
An embodiment substantially as described herein with reference to figures 1 to 6:
with reference to fig. 1 to 3, the ship wastewater pretreatment type detection device comprises a filter 11, a sampling pump 13, a separation tank 1, a collection tank 12 and a sample outlet pump 18 which are fixedly mounted on a frame 8, wherein a ball valve is mounted on a pipeline connected with a water inlet end of the filter 11, a water outlet end of the filter 11 is communicated with a water inlet end of the sampling pump 13 through a pipeline, and a ball valve is also mounted on a pipeline connected with a water outlet end of the sample outlet pump 18.
With reference to fig. 4 and 5, the separation tank 1 includes a tank body, the tank body of the separation tank 1 is composed of an upper cover 2, an outer tube 3 and a lower cover 4, the outer tube 3 is cylindrical, the outer tube 3 is transparent, the upper cover 2 and the lower cover 4 are located at the upper end and the lower end of the outer tube 3, flanges are integrally formed on the upper cover 2 and the lower cover 4, and the outer tube 3 is in threaded connection with the flanges of the upper cover 2 and the lower cover 4.
A water inlet 41, a water outlet 42 and a scrap discharge port 43 are integrally formed on the lower cover 4, a vertical water inlet pipe 5 is fixedly connected to the water inlet 41, a guide sleeve 44 is integrally formed on the lower cover 4, and the water inlet pipe 5 penetrates through the guide sleeve 44; the water outlet 42 is fixedly connected with a vertical water discharge pipe 6 (the water discharge pipe 6 is in threaded connection with the connector 10, the connector 10 is in threaded connection with the water outlet 42, as shown in fig. 3, the connection structure of the water inlet pipe 5 and the water inlet 41 is the same as the structure of the water discharge pipe 6 arranged on the water outlet 42), the upper end and the lower end of the water discharge pipe 6 are both open, the upper end of the water discharge pipe 6 is open and is a water discharge outlet, the lower end of the water discharge pipe 6 is open and is communicated with the water inlet end of the detection device through a pipeline, and an adjusting valve; the chip removal opening 43 is connected with a plug 7 through threads.
The upper cover 2 is integrally formed with a limiting sleeve 21 extending into the outer tube 3, the top of the water inlet tube 5 is inserted into the limiting sleeve 21, and the side wall of the upper cover 2 is provided with a through hole.
The upper part of the outer tube 3 is provided with an air outlet 31, and the air outlet 31 is communicated with the through hole on the upper cover 2; a water outlet 51 is formed in the side wall of the upper part of the water inlet pipe 5, and the exhaust port 31 on the outer pipe 3 is positioned above the water outlet 51 of the water inlet pipe 5 and the drainage outlet of the drainage pipe 6; the exhaust port 31 is communicated with the water inlet end of the sample outlet pump 18 through a pipeline, and a regulating valve is installed on the pipeline connected between the exhaust port 31 and the water inlet end of the sample outlet pump 18. A ball valve and a pressure gauge are arranged on a pipeline connected between the water inlet pipe 5 of the separation tank 1 and the water outlet end of the sampling pump 13.
Referring to fig. 3 and 6, a water return port 14 and an air inlet 15 are formed at the upper part of the collection tank 12, and a water discharge port 16 is formed at the bottom of the collection tank 12; the water return port 14 is communicated with a water outlet pipe of the detection device through a pipeline; the air inlet 15 is connected with a turning joint through threads, the turning joint is provided with an air inlet valve 17, the air inlet valve 17 is communicated with the outside atmosphere, and outside air can enter the tank body of the collecting tank 12 through the air inlet valve 17; the water outlet 16 is communicated with the water inlet end of the sample outlet pump 18 through a pipeline.
The specific implementation process is as follows:
when the washing wastewater is required to be sent into the detection device for detection, all ball valves are opened, so that the pipeline of the whole ship wastewater pretreatment type detection device is in a communicated state, then the sampling pump 13 and the sample outlet pump 18 are started, so that the washing wastewater enters the water inlet pipe 5 of the separation tank 1 through the ball valves, the filter 11, the sampling pump 13 and the ball valves, the washing wastewater enters from the bottom of the water inlet pipe 5 and flows to the bottom of the tank body of the separation tank 1 from the water outlet 51, the washing wastewater is required to be reserved at the height of the drainage outlet of the drainage pipe 6 in the tank body of the separation tank 1 and then overflows from the drainage outlet, and the washing wastewater flowing out of the drainage outlet enters the detection device through the regulating valve to be detected; the washing wastewater detected by the detection device enters the collection tank 12 from the water outlet pipe of the detection device and the water return port 14 of the collection tank 12, the washing wastewater entering the collection tank 12 is pumped into the sea by the sample outlet pump 18, and simultaneously the sample outlet pump 18 also pumps the gas separated from the separation tank 1 into the sea from the gas outlet 31 through the regulating valve.
In this process, carry out twice impurity treatment to the washing waste water that gets into detection device, the solid impurity of bulky in the first time will washing waste water filters for adopting filter 11, the second time is washing waste water and need remain a period of time in the jar body of knockout drum 1 and discharge from the drainage export again, washing waste water remains the in-process at the jar body of knockout drum 1, it has stood to washing waste water in other words, make washing waste water partial impurity deposit, guarantee that the washing waste water that gets into in the detection device can not block up detection device.
Adopt this embodiment for a moment, washing waste water need stay the height of drainage export in the jar body of knockout drum 1, go out from drainage export overflow again for get into washing waste water and slowly flow out automatically in the knockout drum 1, the torrent that brings because of sampling pump 13 draws water can be solved to the mode of this kind of overflow, is favorable to improving the accuracy of washing waste water inspection.
In this embodiment one, inlet tube 5's delivery port 51 is located inlet tube 5's upper portion, washing waste water can slowly flow to knockout drum 1's jar body bottom along inlet tube 5's outer wall after discharging from delivery port 51, at the in-process that washing waste water slowly flows, bubble among the washing waste water floats at the upper surface of washing waste water, along with the bubble constantly increases in knockout drum 1's jar is internal, fuse each other between the bubble and form bigger bubble, when the bubble volume reaches the certain degree, the bubble can break, gas in the bubble is taken away by appearance pump 18, make from bubble content in the washing waste water through the drainage outlet discharge reduce by a wide margin, further make the detection of washing waste water more accurate.
In the first embodiment, the sample outlet pump 18 pumps the washing wastewater in the collection tank 12 out of the water outlet 16, the sample outlet pump 18 depends on negative pressure in the process of pumping the washing wastewater in the collection tank 12 and the gas in the separation tank 1, and the negative pressure of the sample outlet pump 18 is favorable for the rapid rupture of the bubbles in the separation tank 1 (the internal pressure of the bubbles is greater than the external pressure pumped by the sample outlet pump 18, and the bubbles can be rapidly ruptured under the action of the pressure difference); the negative pressure of the sample outlet pump 18 on the collection tank 12 enables the pressure in the collection tank 12 to be consistent with the external atmospheric pressure due to the existence of the air inlet valve 17, and therefore the detection condition of the detection device cannot be influenced.
In addition, adopt the scheme of this embodiment one, the installation is compact, and is small, is favorable to the popularization.
Example two
Second embodiment is basically as shown in fig. 7 and 8, and the second embodiment is different from the first embodiment in that the vent 31 of the separation tank 1 of the second embodiment is located on the upper cover 2.
By adopting the mode, compared with the first embodiment, the sealing between the outer tube 3 and the upper cover 2 is facilitated, the processing difficulty is reduced, and holes do not need to be processed on the outer tube 3 and the upper cover 2 at the same time; the alignment of the vent 31 of the outer tube 3 and the through hole of the upper cap 2 is not required to be considered in the first embodiment, thereby reducing the difficulty of assembly.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. Marine wastewater pretreatment formula detection device, including sample pump and play appearance pump, its characterized in that: the device comprises a separation tank and a collection tank, wherein a water inlet pipe is arranged in a tank body of the separation tank, the bottom of the water inlet pipe is fixedly connected to the bottom of the tank body of the separation tank, a water outlet is formed in the water inlet pipe, the bottom of the water inlet pipe is communicated with the water outlet end of a sampling pump, a water outlet and an air outlet are formed in the separation tank, and the water outlet is communicated with the water inlet end of a detection device; the height of the water outlet is higher than that of the water inlet and outlet, and the position of the air outlet is higher than that of the water outlet; the collecting tank is provided with a water return port communicated with a water outlet pipe of the detection device.
2. The pretreatment type ship wastewater detection device according to claim 1, wherein: the water inlet end of the sampling pump is connected with a filter.
3. The pretreatment type ship wastewater detection device according to claim 1, wherein: and a water outlet and an air inlet are arranged on the tank body of the collecting tank, the water outlet is communicated with the water inlet end of the sample outlet pump, and the air inlet is communicated with the external atmosphere.
4. The pretreatment type ship wastewater detection device according to claim 3, wherein: and the air inlet is connected with an air inlet valve.
5. The pretreatment type ship wastewater detection device according to claim 3, wherein: the gas vent of knockout drum and the end intercommunication of intaking of a kind pump, a kind pump adopts the diaphragm pump.
6. The pretreatment type ship wastewater detection device according to claim 5, wherein: and a regulating valve is connected between the exhaust port of the separation tank and the water inlet end of the sample outlet pump.
7. The pretreatment type ship wastewater detection device according to claim 1, wherein: the bottom of the tank body of the separating tank is provided with a chip removal port, and the chip removal port is detachably connected with a plug.
8. The pretreatment type ship wastewater detection device according to claim 1, wherein: and a regulating valve is connected between the drainage outlet and the water inlet end of the detection device.
9. The pretreatment type ship wastewater detection device according to claim 1, wherein: the internal drain pipe that is equipped with of jar of knockout drum, the top at the drain pipe is established to the drainage export.
10. The pretreatment type ship wastewater detection device according to claim 1, wherein: and the water outlet end of the sample outlet pump is connected with a ball valve.
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| CN201911379698.1A CN111024912A (en) | 2019-12-27 | 2019-12-27 | Ship wastewater pretreatment type detection device |
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| CN201911379698.1A CN111024912A (en) | 2019-12-27 | 2019-12-27 | Ship wastewater pretreatment type detection device |
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