Separated water sampling device and method of oil-water separator convenient to clean

Abstract

The invention discloses an oil-water separator separated water sampling device convenient to clean, the device comprises a sampling device and a sealing module, the sampling device is used for sampling separated water in a back-to-bilge water pipeline, the sealing module is installed in the back-to-bilge water pipeline, and the sealing module is used for sealing a sampling port; the sampling device comprises a base plate and a clamping module, the clamping module is installed on the base plate and comprises an abutting plate and a clamp, a sampling test tube is clamped between the abutting plate and the clamp, the sealing module comprises a sealing strip, flanges and a fixing pipeline, the flanges are arranged at the two ends of the fixing pipeline, and the sealing strip is connected with the clamping module. A sampling opening is formed in one side of the fixed pipeline, and a sealing strip is mounted at the sampling opening. According to the invention, the sampling port is replaced by the sealing module, so that sealing is realized, sampling of the sampling device is facilitated, leakage is avoided, pipeline oxidation is avoided due to sealing, and subsequent detection accuracy of sampled liquid is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a separated water sampling device and method for an oil-water separator which is easy to clean. Background Art

[0002] Domestic LNG natural gas ships involve the field of oil-water separators. After the sewage pretreatment from other systems on board enters the bilge water, oil and water separation is required, and then enters the clean water tank, or is discharged overboard after reaching the standard of less than 5PPM. In order to verify whether the oil-water separator is qualified at the dock, pipeline separation water sampling is particularly important for the subsequent normal function of the system to be recognized.

[0003] The first existing process is to add a valve branch to the return bilge water pipeline for sampling, but some separated water remaining inside the pipeline may affect the accuracy of the concentration value of the sampling result. The second existing process is to add a funnel in the middle of the return bilge water pipeline to facilitate sampling, but this is inconvenient for subsequent ship management, and garbage may enter it during on-site grinding, and the interior is exposed to the outside, which is prone to oxidation and rust, which will also affect the inspection of separated water.

[0004] In summary, no matter which sampling method is adopted, the cleaning of the sampling point is always not done properly, which in turn affects the oil concentration after the sampling and separation of water. It is necessary to provide an effective tool for sampling the separated water pipeline of an oil-water separator. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art and to provide an oil-water separator water separation sampling device and method that is easy to clean. The device of the present invention replaces the sampling port with a sealing module, which facilitates the sampling of the sampling device while achieving sealing and preventing leakage. At the same time, the sealing avoids oxidation of the pipeline and improves the subsequent detection accuracy of the sampled liquid.

[0006] In order to achieve the above invention purpose, the technical solution provided by the present invention is as follows:

[0007] A separated water sampling device for an oil-water separator which is easy to clean, the device comprising a sampling device and a sealing module, the sampling device being used for sampling separated water in a return tank bottom water pipeline, the sealing module being installed in the return tank bottom water pipeline, the sealing module being used for sealing a sampling port; the sampling device comprising a base plate and a clamping module, the clamping module being installed on the base plate, the clamping module comprising an abutment plate and a clamp, a sampling test tube being clamped between the abutment plate and the clamp, the sealing module comprising a sealing strip, a flange and a fixed pipe, flanges being provided at both ends of the fixed pipe, a sampling port being provided on one side of the fixed pipe, and a sealing strip being installed at the sampling port.

[0008] Furthermore, the abutment plate is in a semicircular arc shape as a whole, and the lower end of the abutment plate is vertically welded and fixed to the base plate. The clamp includes a U-shaped clamp and a clamping piece, and the U-shaped clamp is arranged in the middle of the clamping piece.

[0009] Furthermore, the clamping member is semicircular in shape as a whole, the clamping member and the abutment plate form a cylindrical shape, the clamping member and the abutment plate are staggered, the clamping member is arranged on the upper part of the abutment plate, the clamping member is inserted into the opening of the abutment plate, one side of the U-shaped clip extends into the groove of the clamping member, and the other side of the U-shaped clip is vertically welded and fixed to the base plate.

[0010] Furthermore, the upper and lower ends of the fixed pipe are fixedly connected to the flange respectively, an arc-shaped groove is provided on the flange end face at the sampling port on one side of the fixed pipe, a sealing strip is installed in the arc-shaped groove, and a rubber impeller group is provided on the flange end face inside the sealing strip.

[0011] Furthermore, two rubber impeller groups are provided, the rubber impeller groups rotate around a rotating shaft, the blades of the rubber impeller groups are made of rubber, and the distance between the rotating shafts is greater than the width of the base plate.

[0012] Furthermore, the sealing strip includes a first sealing strip and a second sealing strip, a fixed locking piece is provided on the side of the first sealing strip, a rotating locking piece is provided on the side of the second sealing strip, the interior of the sealing strip is hollow, and after the sealing strip is inflated, the sealing strip expands along the arc groove on the flange until the sampling port is sealed, and the first sealing strip and the second sealing strip are respectively provided with inflation ports.

[0013] Furthermore, the fixed lock is L-shaped as a whole, the end face of the fixed lock is provided with an inflation hole, the end face of the rotating lock is provided with an inflation hole, and the front end of the rotating lock is set as a rotating part. When the first sealing strip and the second sealing strip seal the sampling port, the rotating part on the rotating lock rotates to clamp the fixed lock.

[0014] A method for sampling separated water from an oil-water separator that is easy to clean, the method specifically comprising the following steps:

[0015] S1, prepare a separated water sampling device for an oil-water separator that is easy to clean, the device comprising a sampling device and a sealing module, the sampling device is used to sample separated water in a return tank bottom water pipeline, the sealing module is installed in the return tank bottom water pipeline, the sealing module is used to seal the sampling port; the sampling device comprises a base plate and a clamping module, the clamping module is installed on the base plate, the clamping module comprises a backing plate and a clamp, the backing plate and the clamp clamp a sampling test tube, the sealing module comprises a sealing strip, a flange and a fixed pipe, the fixed pipe is provided with flanges at both ends, the fixed pipe is provided with a sampling port on one side, and a sealing strip is installed at the sampling port;

[0016] S2, inserting the sampling test tube between the abutment plate and the clamp, and clamping the sampling test tube with a U-shaped clamp;

[0017] S3, insert the sampling device into the closed module through the rubber impeller group through the sampling port, align the sampling tube with the through hole on the flange, and the separated water in the return bilge water pipeline flows into the sampling tube;

[0018] S4, after sampling the sampling tube, take the sampling tube out of the closed module through the base plate to complete the sampling.

[0019] Furthermore, after the sampling is completed, the sealing strip is inflated through the fixed locking piece and the rotating locking piece, so that the sealing strip expands along the arc-shaped groove on the flange to seal the sampling port, and the fixed locking piece is clamped by the rotating locking piece to seal the sampling port. When sampling is performed again, air is deflated through the inflation holes on the fixed locking piece and the rotating locking piece, and the sealing strip retracts along the arc-shaped groove on the flange, opening the sampling port for sampling.

[0020] Furthermore, flanges are provided at both ends of the fixed pipe and are respectively connected and fixed to the flanges of the return bilge water pipe by bolts. When the closed module is cleaned, it is removed from the return bilge water pipe for cleaning and then reinstalled in the return bilge water pipe.

[0021] Based on the above technical solution, the present invention has achieved the following technical advantages through practical application of a water sampling device and method for an oil-water separator that is easy to clean:

[0022] 1. The oil-water separator separation water sampling device of the present invention is easy to clean. The sampling port is replaced by a sealing module. While achieving sealing, it is convenient for sampling of the sampling device without leakage. At the same time, the sealing avoids oxidation of the pipeline and improves the subsequent detection accuracy of the sampled liquid.

[0023] 2. The oil-water separator separation water sampling device of the present invention is easy to clean, and the sealing device is bolted back to the bilge water pipeline for easy disassembly and cleaning.

[0024] 3. The oil-water separator separation water sampling device of the present invention which is easy to clean solves the influence of residual separation water and provides more accurate results. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The present invention is a structural diagram of a sampling device in a separated water sampling device of an oil-water separator which is easy to clean.

[0026] Figure 2 The present invention is a structural diagram of a sealing module in a separated water sampling device of an oil-water separator which is easy to clean.

[0027] Figure 3 The present invention is a diagram of a sealing strip locking structure in a separated water sampling device of an oil-water separator which is easy to clean.

[0028] Figure 4 The present invention is a structural diagram of an opening of a sealing strip lock in a separated water sampling device of an oil-water separator which is easy to clean.

[0029] Figure 5 The present invention is a diagram of a sealing strip venting structure in a separated water sampling device of an oil-water separator which is easy to clean.

[0030] Figure 6 The present invention is a structural diagram of the installation of a sealing module in a separated water sampling device of an oil-water separator which is easy to clean. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific examples shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0032] like Figure 1-6 The present invention belongs to a separation water sampling device for an oil-water separator which is easy to clean. The device comprises a sampling device 1 and a sealing module 2. The sampling device 1 is used for sampling separation water in a return tank bottom water pipeline 5. The sealing module 2 is installed in the return tank bottom water pipeline 5. The sealing module 2 is used for sealing a sampling port. The sampling device 1 comprises a base plate 11 and a clamping module. The clamping module is installed on the base plate 11. The clamping module comprises a support plate 12 and a clamp. A sampling test tube is clamped between the support plate 12 and the clamp. The sealing module 2 comprises a sealing strip, a flange 4 and a fixed pipe 21. Flanges 4 are provided at both ends of the fixed pipe 21. A sampling port is provided on one side of the fixed pipe 21. A sealing strip is installed at the sampling port. By replacing the sampling port with a sealing module, the sampling device 1 is facilitated for sampling without leakage while achieving sealing. At the same time, the sealing avoids oxidation of the pipe, thereby improving the subsequent detection accuracy of the sampled liquid.

[0033] The abutment plate 12 is in a semicircular arc shape as a whole. The lower end of the abutment plate 12 is vertically welded and fixed to the base plate 11 . The clamp includes a U-shaped clamp 14 and a clamping member 13 . The U-shaped clamp 14 is arranged in the middle of the clamping member 13 .

[0034] The clamping member 13 is semicircular in shape as a whole, and the clamping member 13 and the abutment plate 12 form a cylindrical shape. The clamping member 13 and the abutment plate 12 are staggered, and the clamping member 13 is arranged on the upper part of the abutment plate 12. The clamping member 13 is inserted into the opening of the abutment plate 12, and one side of the U-shaped clip 14 extends into the groove of the clamping member 13, and the other side of the U-shaped clip 14 is vertically welded and fixed to the base plate 11; the sampling tube is clamped by the U-shaped clip 14, and the U-shaped clip 14 is elastic and can clamp sampling tubes of different sizes. The height from the clamping member 13 to the base plate 11 is less than the height of the sealing module, thereby ensuring that the sampling device 1 can extend into the sealing module.

[0035] The upper and lower ends of the fixed pipe 21 are fixedly connected to the flange 4 respectively. An arc groove 41 is provided on the end face of the flange 4 at the sampling port on one side of the fixed pipe 21. A sealing strip is installed in the arc groove 41. A rubber impeller group 22 is provided on the end face of the flange 4 inside the sealing strip.

[0036] Two rubber impeller groups 22 are provided, and the rubber impeller groups 22 rotate around the rotating shaft. The blades of the rubber impeller groups 22 are made of rubber, and the distance between the rotating shafts is greater than the width of the base plate 11; the rubber impeller groups 22 avoid liquid leakage during sampling, and also prevent pipeline oxidation.

[0037] The sealing strip includes a first sealing strip 31 and a second sealing strip 32. A fixed lock 33 is provided on the side of the first sealing strip 31, and a rotating lock 34 is provided on the side of the second sealing strip 32. The interior of the sealing strip is hollow. After the sealing strip is inflated, the sealing strip expands along the arc groove 41 on the flange 4 until the sampling port is sealed. The first sealing strip 31 and the second sealing strip 32 are respectively provided with inflation ports.

[0038] The fixed lock 33 is L-shaped as a whole, and the front end of the rotating lock 34 is set as a rotating member. When the first sealing strip 31 and the second sealing strip 32 seal the sampling port, the rotating member on the rotating lock 34 rotates to clamp the fixed lock 33.

[0039] A method for sampling separated water from an oil-water separator that is easy to clean, the method specifically comprising the following steps:

[0040] S1, prepare a separated water sampling device for an oil-water separator that is easy to clean, the device comprising a sampling device 1 and a closed module 2, the sampling device 1 is used to sample separated water in a return tank bottom water pipeline 5, the closed module 2 is installed in the return tank bottom water pipeline 5, the closed module 2 is used to seal the sampling port; the sampling device 1 comprises a base plate 11 and a clamping module, the clamping module is installed on the base plate 11, the clamping module comprises a backing plate 12 and a clamp, the backing plate 12 and the clamp clamp a sampling test tube, the closed module 2 comprises a sealing strip, a flange 4 and a fixed pipe 21, the fixed pipe 21 is provided with flanges 4 at both ends, the fixed pipe 21 is provided with a sampling port on one side, and a sealing strip is installed at the sampling port;

[0041] S2, insert the sampling test tube between the abutment plate 12 and the clamp, and clamp the sampling test tube by the U-shaped clamp 14;

[0042] S3, the sampling device 1 is inserted into the closed module 2 through the rubber impeller group 22 through the sampling port, the sampling tube is aligned with the through hole on the flange 4, and the separated water in the return bilge water pipe 5 flows into the sampling tube;

[0043] S4, after sampling, the sampling tube is taken out from the closed module 2 through the base plate 11 to complete the sampling.

[0044] After the sampling is completed, the sealing strip is inflated through the inflation hole, so that the sealing strip expands along the arc groove 41 on the flange 4 to seal the sampling port, and the fixed lock 33 is clamped by the rotating lock 34 to seal the sampling port. When sampling is performed again, air is deflated through the inflation hole, the sealing strip retracts along the arc groove 41 on the flange 4, and the sampling port is opened for sampling.

[0045] Flanges 4 are provided at both ends of the fixed pipe 21 and are respectively connected and fixed to the flanges 4 of the return bilge water pipe 5 by bolts. When the closed module 2 is cleaned, it is removed from the return bilge water pipe 5 for cleaning and then reinstalled in the return bilge water pipe 5.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. An oil-water separator separated water sampling device that is easy to clean, characterized in that: The device comprises a sampling device and a sealing module, wherein the sampling device is used for sampling separated water in a return-to-bilge water pipeline, and the sealing module is installed in the return-to-bilge water pipeline, and the sealing module is used for sealing a sampling port; the sampling device comprises a base plate and a clamping module, and the clamping module is installed on the base plate, and the clamping module comprises an abutment plate and a clamp, and a sampling test tube is clamped between the abutment plate and the clamp, and the sealing module comprises a sealing strip, a flange and a fixed pipe, flanges are provided at both ends of the fixed pipe, a sampling port is provided on one side of the fixed pipe, and a sealing strip is installed at the sampling port.

2. The oil-water separator separated water sampling device that is easy to clean according to claim 1 is characterized in that: The abutment plate is in a semicircular arc shape as a whole, and the lower end of the abutment plate is vertically welded and fixed to the base plate. The clamp includes a U-shaped clamp and a clamping piece, and the U-shaped clamp is arranged in the middle of the clamping piece.

3. The oil-water separator separated water sampling device that is easy to clean according to claim 2 is characterized in that: The clamping member is semicircular in shape as a whole, and the clamping member and the abutment plate form a cylindrical shape. The clamping member and the abutment plate are staggered, and the clamping member is arranged on the upper part of the abutment plate. The clamping member is inserted into the opening of the abutment plate, and one side of the U-shaped clip extends into the groove of the clamping member, and the other side of the U-shaped clip is vertically welded and fixed to the base plate.

4. The oil-water separator separated water sampling device that is easy to clean according to claim 1 is characterized in that: The upper and lower ends of the fixed pipe are fixedly connected to the flange respectively, an arc-shaped groove is arranged on the flange end face at the sampling port on one side of the fixed pipe, a sealing strip is installed in the arc-shaped groove, and a rubber impeller group is arranged on the flange end face inside the sealing strip.

5. The oil-water separator separated water sampling device that is easy to clean according to claim 1 is characterized in that: Two rubber impeller groups are provided, and the rubber impeller groups rotate around the rotating shaft. The blades of the rubber impeller groups are made of rubber, and the distance between the rotating shafts is greater than the width of the base plate.

6. The easy-to-clean oil-water separator separated water sampling device according to claim 4, characterized in that: The sealing strip includes a first sealing strip and a second sealing strip. A fixed locking piece is arranged on the side of the first sealing strip, and a rotating locking piece is arranged on the side of the second sealing strip. The interior of the sealing strip is hollow. After the sealing strip is inflated, the sealing strip expands along the arc groove on the flange until the sampling port is sealed. The first sealing strip and the second sealing strip are respectively provided with an inflation port.

7. The easy-to-clean oil-water separator separated water sampling device according to claim 6, characterized in that: The fixed lock is L-shaped as a whole, and an inflation hole is provided on the end face of the fixed lock, and an inflation hole is provided on the end face of the rotating lock. The front end of the rotating lock is set as a rotating part. When the first sealing strip and the second sealing strip seal the sampling port, the rotating part on the rotating lock rotates to clamp the fixed lock.

8. A method for sampling separated water from an oil-water separator that is easy to clean, characterized in that: The method specifically comprises the following steps: S1, prepare a separated water sampling device for an oil-water separator that is easy to clean, the device comprising a sampling device and a sealing module, the sampling device is used to sample separated water in a return tank bottom water pipeline, the sealing module is installed in the return tank bottom water pipeline, the sealing module is used to seal the sampling port; the sampling device comprises a base plate and a clamping module, the clamping module is installed on the base plate, the clamping module comprises a backing plate and a clamp, the backing plate and the clamp clamp a sampling test tube, the sealing module comprises a sealing strip, a flange and a fixed pipe, the fixed pipe is provided with flanges at both ends, the fixed pipe is provided with a sampling port on one side, and a sealing strip is installed at the sampling port; S2, inserting the sampling test tube between the abutment plate and the clamp, and clamping the sampling test tube with a U-shaped clamp; S3, insert the sampling device into the closed module through the rubber impeller group through the sampling port, align the sampling tube with the through hole on the flange, and the separated water in the return bilge water pipeline flows into the sampling tube; S4, after sampling the sampling tube, take the sampling tube out of the closed module through the base plate to complete the sampling.

9. The method for sampling separated water from an oil-water separator that is easy to clean according to claim 8, characterized in that: After the sampling is completed, the sealing strip is inflated through the fixed locking piece and the rotating locking piece, so that the sealing strip expands along the arc groove on the flange to seal the sampling port, and the fixed locking piece is clamped by the rotating locking piece to seal the sampling port. When sampling is performed again, air is deflated through the inflation holes on the fixed locking piece and the rotating locking piece, the sealing strip retracts along the arc groove on the flange, and the sampling port is opened for sampling.

10. The method for sampling separated water from an oil-water separator that is easy to clean according to claim 8, characterized in that: Flanges are provided at both ends of the fixed pipe and are respectively connected and fixed to the flanges of the return bilge water pipe by bolts. When the closed module is to be cleaned, it is removed from the return bilge water pipe for cleaning and then reinstalled in the return bilge water pipe.

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