5 results about "Water sampling" patented technology

The invention discloses an underwater vehicle carrying type in-situ deep sea water sampler and relates to the field of in-situ deep sea substance sampling. The underwater vehicle carrying type in-situdeep sea water sampler comprises a water sampling bottle, a triggering device and two plugging devices, wherein an air vent and a water outlet nozzle are formed in the water sampling bottle, the plugging devices are arranged at openings at two ends of the water sampling bottle, and the triggering device is arranged at the side face of the water sampling bottle and is connected with the plugging devices. The underwater vehicle carrying type in-situ deep sea water sampler has the beneficial effects of being simple in structure and flexible in operation; as a ring like floating ball floating onthe water sampling bottle is taken as a start terminal so as to start the water sampling bottle conveniently; the water sampling bottle is plugged by two plugs from two ends by utilizing an elastic rope, so as to reduce disturbance of an original sample collecting object and improve the effectiveness of a sample; and the underwater vehicle carrying type in-situ deep sea water sampler is suitable for the operation of carrying of underwater unmanned tethered submersible, manned untethered submersible and the like, and is high in collecting efficiency.

The invention discloses a kit for quickly detecting water sample lead on site. The kit comprises a lead detection reagent, a lead test paper, a standard lead color card and a consumable material which are independently packaged, wherein the lead detection reagent includes a hydrochloric acid eluant and a sodium hydroxide neutralizing solution; the lead test paper is arranged as a sulfydryl dithizone test paper; the standard lead color card is arranged as a colorful picture after the developing reaction of 10ul standard lead solution on the sulfydryl dithizone test paper; the consumable material includes sulfydryl adsorption filter paper, a water sampling sucker, an external box, a filtering elution bracket, a shafting liquid absorber, an effluent tank and an elution plate. The kit has the beneficial effects that (1) the operation process is greatly simplified, the detection time is shortened, the detection can be completed within 30min and the quick qualitative determination for the lead on the sampling site can be realized; (2) high-cost device and high-level technicians are not required; (3) the detection sensitivity, stability and reliability all meet the requirement of hygienic evaluation standard; and (4) the test paper, the consumable material and the reagent are respectively independently packaged and are portable.

The invention discloses a device for pollutant enrichment and in-situ detection in a flowing system. A terminal control system is respectively connected with and controls a water intake electromagnetic valve, a flushing pipe inlet electromagnetic valve, a water discharge outlet electromagnetic valve, a pressurizing water pump, a submersible pump and a spectrograph; the ion intervention mixed solvent device is connected to a pressurizing water pump through a washing pipe inlet electromagnetic valve; pumping water into the sampling pool by starting the submersible pump; an optical fiber probe is arranged above the sampling pool, and a material for enriching and sensing pollutants is arranged on the surface of the sampling pool; the spectrograph is connected to the data processing center through the communication module; and the data processing center performs multi-target analysis on the to-be-monitored water body in the sampling pool according to the received spectral data. The device can optimize the enrichment of pollutants in a flowing system, and realizes the real-time monitoring of trace pollutants such as pesticides and antibiotics in the flowing system.

The invention relates to a split-flow fluid director applied to underground water sampling and capable of accurately adjusting flow velocity. The director comprises a pipe body, a sampling port arranged above the pipe body and a sample outlet arranged below the pipe body, a balancing weight is arranged at the lower end of the pipe body, and a sample outlet valve and a split-flow component are arranged at the sample outlet; the sample outlet valve comprises a valve barrel, a sample outlet pipe for sample outlet and a valve plate for sealing the sample outlet pipe, the sample outlet pipe penetrates through the valve barrel, the valve plate is slidably arranged in the axis direction of the sample outlet pipe, a guide sleeve is arranged on the valve plate, the outer wall of the guide sleeve isattached to the inner wall of the sample outlet pipe, and a plurality of liquid outlet through holes are formed in the circumferential side wall of the guide sleeve; the split-flow component comprises a drainage tube, a split-flow main tube and a plurality of split-flow branch tubes; and a sealing rubber sleeve is arranged in the sample outlet pipe, the outer wall of the drainage tube abuts against the inner wall of the sealing rubber sleeve, and the drainage tube abuts against the end, away from the valve plate, of the guide sleeve. The split-flow fluid director has the effects that the flowspeed is convenient to adjust, and liquid is conveniently transferred into multiple containers at the same time.

The invention discloses an underwater anti-rotation empennage which comprises an anti-rotation piece for preventing underwater rotation of a direct-reading type CTD in the circumferential direction, and the anti-rotation piece is connected to a water sampling frame of the direct-reading type CTD. Preferably, the anti-rotation piece comprises a supporting framework and high-strength waterproof cloth, and the high-strength waterproof cloth is arranged on the supporting framework. Preferably, the supporting framework comprises a pressure-resistant buoyancy rod and a stainless steel framework, and the pressure-resistant buoyancy rod is arranged on the upper portion of the stainless steel framework. Preferably, the water sampling device further comprises a storage support used for storing the high-strength waterproof cloth, the storage support is fixedly connected to the water sampling frame, and the pressure-resistant buoyancy rod and the stainless steel framework are rotationally connected to the storage support. The invention further discloses the direct-reading type CTD. According to the underwater anti-rotation empennage and the direct-reading CTD with the same, automatic unfolding under water and automatic folding after water outgoing can be achieved, steel cable damage caused by underwater rotation of the empennage is prevented, and safety of marine instruments and equipment is guaranteed.