A kind of sodium hypochlorite produces sampling retracting device
Technical field:
The utility model relates to sodium hypochlorite and produces, and particularly relates to a kind of sodium hypochlorite and produces sampling retracting device.
Background technology:
Existing sampler directly connects a pipe nipple pump discharge house steward, and dress sample cock, accesses sample pipe nipple.Shortcoming: because sodium hypochlorite produces the later stage, need frequently sample.During sampling, first want amplification quantity liquor natrii hypochloritis to clean displacement sampling T-way pipe nipple, then will clean displacement sampling jar, these liquor natrii hypochloritises are directly discharged into lower water, send into plant of water disposal process, one is cause unnecessary waste, and two is have chlorine to overflow to cause environmental pollution; Be separately sampling with pressure, liquor natrii hypochloritis is splashed everywhere.
Utility model content:
In order to make up prior art problem, the purpose of this utility model is to provide a kind of sodium hypochlorite and produces sampling retracting device, and sample waste gets back to system, can not cause liquor natrii hypochloritis and chlorine leakage, and well utilization factor is high simultaneously for security performance.
The technical solution of the utility model is as follows:
Sodium hypochlorite produces sampling retracting device, comprise the pump housing, the side of the pump housing and upper end are separately installed with feed pipe and discharge nozzle, it is characterized in that: be linked with the cylindrical shell that upper and lower side is closed between described feed pipe and discharge nozzle, between cylindrical shell upper end and discharge nozzle, between cylindrical shell lower end and feed pipe, be respectively equipped with valve, lower valve; Described cylinder lateral wall bottom is provided with the nipple of level, nipple is provided with left valve; Described cylinder lateral wall top is provided with three-way pipe, and three-way pipe right-hand member outlet is provided with right valve, and three-way pipe upper outlet pipe is connected with vertical valve, funnel from bottom to top in turn.
Described sodium hypochlorite produces sampling retracting device, it is characterized in that: described funnel upper end thereof is provided with end cap.
The utility model has the advantages that:
The utility model reasonable in design, sample waste gets back to system, can not cause liquor natrii hypochloritis and chlorine leakage, and one is that security performance is good, can prevent air and environment; Two is to cause unnecessary waste; Be separately normal pressure sampling, solution can not be caused to flash.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
Embodiment:
See accompanying drawing:
Sodium hypochlorite produces sampling retracting device, comprise the pump housing 1, the side of the pump housing 1 and upper end are separately installed with feed pipe 2 and discharge nozzle 3, be linked with the cylindrical shell 4 that upper and lower side is closed between feed pipe 2 and discharge nozzle 3, between cylindrical shell 4 upper end and discharge nozzle 3, between cylindrical shell 4 lower end and feed pipe 2, be respectively equipped with valve 5, lower valve 6; Cylindrical shell 4 lower sidewall is provided with the nipple 7 of level, nipple 7 is provided with left valve 8; Cylindrical shell 4 side wall upper part is provided with three-way pipe 9, and three-way pipe 9 right-hand member outlet is provided with right valve 10, and three-way pipe 9 upper outlet pipe is connected with vertical valve 11, funnel 12 from bottom to top in turn, and funnel 12 upper end thereof is provided with end cap 13.
Cylindrical shell 1 (ensureing certain connection sample amount and replacement amount), when not sampling at ordinary times, open upper valve 5, lower valve 6 that cylindrical shell 4 upper and lower is reclaimed in sampling, left valve 8 on closedown nipple 7, the right valve 10 on three-way pipe 9 and vertical valve 11, cover funnel end cap 13, utilize pressure reduction before and after the pump housing 1, liquid is proper flow in cylindrical shell 4, ensures that the solution in cylindrical shell 4 is fresh all the time.
During sampling, close the upper valve 5 that cylindrical shell 4 upper and lower is reclaimed in sampling, lower valve 6, open the right valve 10 on three-way pipe 9 and funnel end cap 13, then open on nipple 7 and left valve (sample cock) 8 is installed, cleaning displacement sampling jar, waste liquid is poured in funnel 12, after sampling, closedown nipple 7 is provided with the right valve 10 on left valve (sample cock) 8 and three-way pipe 9, open the vertical valve 11 on three-way pipe 9, after allowing the sample liquid in funnel 12 enter cylindrical shell 4, close the vertical valve 11 on three-way pipe 9, after covering funnel 12, open the upper valve 5 that cylindrical shell 4 upper and lower is reclaimed in sampling, lower valve 6, in cylindrical shell 4, liquid is got back in production system again and is gone, reach the object of recovery sample waste liquid.