CN203705218U - Pipe orifice variable-diameter plug-in sampling instrument - Google Patents

Pipe orifice variable-diameter plug-in sampling instrument Download PDF

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Publication number
CN203705218U
CN203705218U CN201420055993.8U CN201420055993U CN203705218U CN 203705218 U CN203705218 U CN 203705218U CN 201420055993 U CN201420055993 U CN 201420055993U CN 203705218 U CN203705218 U CN 203705218U
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China
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water sample
vertical shaft
current stabilization
separator tube
seat
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CN201420055993.8U
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Chinese (zh)
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温吉利
刘景涛
朱亮
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Institute of Hydrogeology and Environmental Geology CAGS
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Institute of Hydrogeology and Environmental Geology CAGS
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Abstract

The utility model relates to a pipe orifice variable-diameter plug-in type sampling instrument, which structurally comprises a steady flow buffer tube, a pump pipe connecting mechanism, a split-flow pressure regulating valve, a pressure gauge, a sampling hose, and a concentric type flow governor, wherein the steady flow buffer tube can receive a pumped contaminated water sample and conveys the contaminated water sample in a steady flow manner; the pump pipe connecting mechanism is connected with a contaminated water sample output pump pipe; the split-flow pressure regulating valve can regulate the water flow pressure of the contaminated water sample; the pressure gauge can detect the water flow pressure; the sampling hose can perform water sample collection on the contaminated water sample under a laminar flow condition introduced through a streamline water outlet in the steady flow buffer tube; and the concentric type flow governor can regulate the flow rate of a collected contaminated water sample. The pipe orifice variable-diameter plug-in type sampling instrument has the characteristics of small size, light weight, wide range of application, convenience for carrying and installation, simplicity in operation, safety in use, and a sample is prevented from being contaminated in the collection process; besides, the pipe orifice variable-diameter plug-in type sampling instrument improves the fidelity of the collected sample, reduces the collection cost of the sample, ensures the safety of personnel and equipment, and improves the universality of the sampling instrument.

Description

Mouth of pipe reducing plug-in type sampling instrument
Technical field
The utility model relates to a kind of harvester of the water sample that contains volatilization, half volatile material, specifically a kind of mouth of pipe reducing plug-in type sampling instrument.
Background technology
Suffer the water sample of Organic Pollution, due to its singularity that contains volatilization, half volatile material, the collection of its sample is different to the acquisition method of other water sample.
At present, the acquisition method of conventional Organic Pollution water sample is to extract the solid fire hose of pump line mouth place larynx banding of pollution water sample then the mode collected specimens of shunting by four-way.Sample unit used mainly comprises sample collection four-way, four-way shunt, the fire hose that has lining, larynx hoop, big or small pipe adapter, straight pipe, connects snap ring, tensimeter, spigot-and-socket adapter tower seat, pressure regulator valve, venting valve, transparent pressure-resistant plastic flexible pipe soon, flattens formula flow regulator and stainless-steel tube etc., when sampling, first to carry out assembling and on-the-spot installation of sample collecting apparatus, assemble and install kit used and consumptive material and comprise screwdriver, pipe wrench, spanner, raw material band, PVC glue, angle grinding machine etc.
The assembling mode of sample collecting apparatus is: the port one of sample collection four-way adopts inserted type quick coupling and four-way shunt to join; The port two-way of sample collection four-way is crossed screwed connection tensimeter; The port threeway of sample collection four-way is crossed screwed connection spigot-and-socket and is taken over tower seat, and spigot-and-socket is taken over one end of the other end connection transparent plastic hose of tower seat, outside solid with larynx banding; Transparent plastic hose is sleeved in flattening formula flow regulator, and the other end is fastened on one end of stainless-steel tube with larynx hoop; The port four-way of sample collection four-way is crossed screwed connection spigot-and-socket and is taken over tower seat, and spigot-and-socket is taken over one end of the other end connection transparent plastic hose of tower seat, outside solid with larynx banding; The other end of transparent plastic hose is fastened on one end of spigot-and-socket adapter tower seat with larynx hoop, spigot-and-socket is taken over the other end of tower seat by screwed connection pressure regulator valve.
The problem that traditional acquisition mode of Organic Pollution water sample exists is:
(1) fire hose using in sample collecting apparatus, transparent pressure-resistant plastic flexible pipe, raw material band etc. are contaminated samples easily, makes sample distortion; Particularly, in initial use procedure several times, the objectionable constituent that material therefor discharges can produce a very large impact the quality of sample, contaminated samples.
(2) parts of sample collecting apparatus are many, form complexity, and general assembly (TW) is greater than 80kg, bulky, carries inconvenience.
(3) Assembling program complexity, complex operation, consuming time longer.Part parts adopt American Standard, are unfavorable for connection each other, operation inconvenience.
(4) easily produce cavitation at flow through turning round of pipeline and reducing position of sample collection four-way and sample, in the time that the vacuum tightness in air pocket is greater than the saturated vapor pressure of some volatile matter in water or half volatile material, can cause overflowing of these volatility or half volatile material lost, make sample distortion.
(5) water flow adopts " flattening formula " flow regulator control, when adjust flux, the streamline bundle of water gradually becomes " flat " shape by " cylinder " shape, change the shape of streamline bundle, increase the probability of intermolecular mutual collision, the volatilization in Organic Pollution water sample, the probability that half volatile material is separated out are increased.
(6) when pump head or power are when larger, due to the reacting force of mouth of pipe water outlet, can cause the venting valve that is arranged on fire hose head to swing, as not firm in controlled, can to operating personnel and around object produce to clash into and threaten.
(7) maximum specification of the suction pump mouth of pipe that sample collecting apparatus can dock is DN100, is greater than the pump line of this specification for scene, can not carry out sampling operation because docking.
(8) aquifer yield of the terminal stainless-steel tube of raw sample harvester is too little, sample collection overlong time, make the duration of contact of water sample and air longer, so both easily made volatilization, half volatile material in water sample scatter and disappear, easily make again the reducing substances in water sample oxidized, cause sample distortion.
Summary of the invention
The purpose of this utility model is just to provide a kind of mouth of pipe reducing plug-in type sampling instrument that is convenient for carrying, assembles and operate, the deficiency existing to overcome existing sample collecting apparatus, reduce to greatest extent the distortion of water sample, improve universality and the security of sampling instrument.
The utility model is achieved in that a kind of mouth of pipe reducing plug-in type sampling instrument, comprising:
Current stabilization separator tube, is the cylindrical tube of both ends open, is shaped with external thread in body upper port, has streamlined water delivering orifice on tube wall, for accepting the pollution water sample of pumping and pollution water sample being carried out to current stabilization conveying;
Pump line bindiny mechanism, is arranged in the upper port of described current stabilization separator tube, exports being fixedly connected with of pump line for realizing with pollution water sample;
Shunting pressure regulator valve, is arranged in the lower port of described current stabilization separator tube, for the water flow pressure of regulating flow-stabilizing separator tube pollution water sample;
Tensimeter, is arranged on the tube wall of described current stabilization separator tube, for detection of the water flow pressure of pollution water sample in current stabilization separator tube;
Sampling flexible pipe, is connected in the external port of described streamlined water delivering orifice, for guiding out pollution water sample laminar condition from described current stabilization separator tube to carry out water sampling; And
Concentric type flow regulator, is socketed on described sampling flexible pipe, for regulating the uninterrupted that gathers water sample.
Described pump line bindiny mechanism comprises:
Take over tower seat, formed by one section of standpipe and the Circular Plate that is connected to described standpipe lower port, upper port at described standpipe is shaped with external thread, the external diameter of described Circular Plate is identical with the upper end external diameter of described current stabilization separator tube, to hide the upper port of described current stabilization separator tube, the internal diameter of described standpipe is slightly larger than the external diameter of pollution water sample output pump line, to peg graft and to coordinate with pollution water sample output pump line;
The large pressure cap of annulus, by with being threaded of described current stabilization separator tube, the described Circular Plate on described adapter tower seat is crimped in the upper port of described current stabilization separator tube;
Large sealing packing ring, liner is between the upper port of described current stabilization separator tube and the described Circular Plate of described adapter tower seat;
Small sealing ring, for being socketed pollution water sample output pump line the liner upper port place at the described standpipe of described adapter tower seat; And
The little pressure cap of annulus, by with being threaded of described standpipe on described adapter tower seat, realize the pollution water sample output pump line being plugged in described standpipe and be connected with the firm of described standpipe.
Described concentric type flow regulator is in a staight shank holding rod, to have axial core hole, described sampling flexible pipe is through the described core hole of described staight shank holding rod, be provided with rotation euphroe in one end of described holding rod, on the governor motion of described rotation euphroe, be fixed with fastening rope, described fastening rope is embedded in the locating groove of outputing in described holding rod end after enclosing around described sampling flexible pipe one.
The adapter tower seat using in the utility model configures in groups, be that each adapter tower seat is provided with the Circular Plate that external diameter is identical, internal diameter is different, the caliber of the standpipe welding in each Circular Plate is different, and become array configuration, so just can be according to the pollution water sample output pump line of various different tube diameters, select the adapter tower seat of correspondingly-sized, realize being connected of diameter adjustable of sampling instrument of the present invention and pollution water sample output pump line.
Described shunting pressure regulator valve be on an axis, be connected to can shutoff described in the circular valve plate of current stabilization separator tube lower port, described axis is through the interface on described current stabilization separator tube tube wall, in its inner clamping blind hole of inserting on described current stabilization separator tube tube wall, exposed junction cross-under at described axis has handle, is sealed with cushion rubber and plug in described interface.
Described rotation euphroe is to be provided with in the upper end of described holding rod axially to deflect away from outside, core hole and cylinder seat opposing upper and lower and vertical shaft seat, and the top of described cylinder seat is opening end, on the base plate of described cylinder seat, has jack hole; In described vertical shaft seat, be connected with the rotatable vertical shaft as governor motion, the upper end of described vertical shaft is stretched in described cylinder seat through described jack hole, is provided with the outer tooth bar that a circle is parallel to vertical shaft axial line in the upper end of described vertical shaft; In described cylinder seat, be provided with to lock in axial sliding and put ring, put at described lock on the inner ring surface of ring and be provided with the inner rack that a circle can be meshed with the described outer tooth bar on described vertical shaft; In described cylinder seat, be provided with top spring, make described lock put ring under normal conditions by overhead to the position mutually concordant with described cylinder seat upper port, to engage vertical shaft described in locking by tooth bar; Described holding rod on the body of rod between described cylinder seat and described vertical shaft seat, have horizontal eyelet, the described fastening rope passing from described eyelet is fixed on described vertical shaft; Have prismatic key hole in the upper surface of described vertical shaft.
The degree of depth of described key hole is to be inserted at key at the end, making described lock put ring is pressed down by key and departs from and the engaging of described outer tooth bar on described vertical shaft, like this, described vertical shaft can rotation under the stirring of key, to strain or to loosen fastening rope, thereby adjust the size of the interior circular section at the contained place of sampling flexible pipe.
The lower end that described lock is put the described outer tooth bar on upper end and the described vertical shaft of the described inner rack in ring is respectively is convenient to the pointed shape of pegging graft and coordinating each other.
The profile of tooth that described lock is put the described outer tooth bar on described inner rack and the described vertical shaft in ring is respectively triangle.
The utility model has effectively improved sample fidelity, is embodied in the following aspects:
(1) material category using is single, not pollution water sample.Sampling instrument of the present invention material used only has two kinds, 304 stainless steels and silica gel, and its physics, stable chemical performance, do not disengage material, avoided the improper artificial pollution causing of materials'use due to sampling instrument itself in sample collection process.
(2) water delivering orifice on current stabilization separator tube adopts airflow design, and external sampling flexible pipe is to be made up of a complete transparent withstand voltage silicone tube, connects facility in the middle of non junction etc., and water sample is directly imported sampling bottle from the streamlined water delivering orifice of current stabilization separator tube; The flow direction that gathers water sample changes slowly, streamline is steady, has avoided the generation of air pocket, thereby has reduced overflowing of volatilization, half volatile material in sample.
(3) sampling hose discharge adopts concentric type flow regulator control and regulate, and makes the streamline bundle of water remain " cylinder " shape, has reduced the probability that volatilization, half volatile material are separated out.
(4) pressure of the present utility model is controlled at 0.18~0.2MPa, reduces 0.5~0.7MPa compared with the controlled pressure of raw sample harvester, has reduced the pressure gradient of sample collection process; In addition, the internal diameter of sampling flexible pipe of the present utility model increases to 6mm, 2.25 times of sectional area in raw sample harvester rising pipe, improve sample collection efficiency, reduce the duration of contact of water sample and air, avoid in sample scattering and disappearing of volatilization, half volatile material as far as possible, reduce reducing substances in water sample and contact with air the oxidation reaction of generation, improved the fidelity of sample.
Parts composition of the present utility model is simple, and on-the-spot easy for installation, easy and simple to handle, volume is little, lightweight, easy to carry, thus, both reduced the required personnel of sample collection and equipment delivery vehicle, the day of having improved again sample gathers quantity, thereby has realized the significantly reduction of sample collection cost.Due to the parts that are not flexible coupling, even if run into large lift or powerful water pump, the phenomenon that also there will not be parts to get rid of pendulum to surrounding, to staff and around object without any threat, eliminated the potential safety hazard in sampling work.
In addition, all parts of the present utility model all adopt GB, there is wider universality, the pump line mouth specification that can dock is respectively totally 11 of DN150, DN125, DN100, DN80, DN65, DN50, DN40, DN32, DN25, DN20, DN15, the maximum pump line specification that gathers water sample expands DN150 to, has met the connection needs of the pump line mouth of conventional water pump among the people.
The utility model has changed composition, structure and the principle of work of original Organic Pollution water sample acquisition device, have volume little, lightweight, applied widely, be easy to carry, easy for installation, simple to operate, use safely, avoid the features such as the pollution section of sample in gatherer process, improve the fidelity of collected specimens, reduce the acquisition cost of sample, ensure the safety of personnel, equipment, improved the universality of sampling instrument.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of concentric type flow regulator embodiment 1.
Fig. 3 is the structural representation of concentric type flow regulator embodiment 1 key used.
Fig. 4 is the external structure schematic diagram of concentric type flow regulator embodiment 2.
Fig. 5 is the inner structure schematic diagram of concentric type flow regulator embodiment 2.
Fig. 6 is the structural representation of the rotation euphroe of concentric type flow regulator embodiment 2.
Fig. 7 is the holding rod end view of concentric type flow regulator.
Embodiment
As shown in Figure 1, the utility model comprises the parts such as current stabilization separator tube 9, pump line bindiny mechanism, shunting pressure regulator valve, tensimeter 7, sampling flexible pipe 1 and concentric type flow regulator.
Current stabilization separator tube 9 is cylindrical tubes of the both ends open made with 304 stainless steels, is shaped with outer convex edge thereon on port, and get on the bus and be shaped with screw thread in convex edge outside.In the upper port of current stabilization separator tube 9, be provided with pump line bindiny mechanism, export being fixedly connected with of pump line to realize with pollution water sample.On the tube wall of current stabilization separator tube 9, have streamlined water delivering orifice 8, sampling flexible pipe 1 is fixed in the external port of streamlined water delivering orifice 8.In the lower port of current stabilization separator tube 9, be provided with shunting pressure regulator valve, in order to the port aperture of regulating flow-stabilizing separator tube 9, to adjust the water flow pressure of pollution water sample in body.
In Fig. 1, described pump line bindiny mechanism comprises parts such as taking over tower seat 12, the large pressure cap 10 of annulus, large sealing packing ring 11, small sealing ring 14 and the little pressure cap 13 of annulus.Take over tower seat 12 and be made up of one section of standpipe and the Circular Plate that is welded on this standpipe lower port, be also shaped with outer convex edge in the upper port of standpipe, get on the bus and be shaped with external thread in convex edge outside; The external diameter of Circular Plate is identical with the upper end external diameter of current stabilization separator tube 9, so that hide in the upper port of current stabilization separator tube.Standpipe is that internal diameter is than the serial pipe of the large 2mm of the serial outer diameter tube of GB left and right, comprise DN125, DN100, DN80, DN65, DN50, DN40, DN32, DN25, DN20, DN15 totally 10 kinds of specifications, make to take over the configuration that tower seat 12 forms one group of series size, thereby can be for the difference of scene pump line used, the selection standpipe caliber with it adapter tower seat of correspondence carries out Assembling, coordinates with the reliable grafting of pump line to realize this sampling instrument.Taking over tower seat 12 blocks in the upper port of current stabilization separator tube 9, large sealing packing ring 11 liners are between the upper port of current stabilization separator tube 9 and the Circular Plate of adapter tower seat 12, the large pressure cap 10 of annulus by with being threaded of current stabilization separator tube upper port, the Circular Plate of taking on tower seat 12 is crimped in the upper port of current stabilization separator tube 9.Taking over tower seat 12 is also to make with 304 stainless steels.
The grafting fit system of the standpipe of adapter tower seat 12 and pollution water sample output pump line is: first on pump line, be socketed the little pressure cap 13 of annulus and small sealing ring 14, then the vertical pipe sleeve of the adapter tower seat 12 on this sampling instrument is connected on pump line, make small sealing ring 14 liners at the standpipe upper port place that takes over tower seat 12, finally little annulus pressure cap 13 and the standpipe of taking on tower seat 12 are threaded connection, small sealing ring 14 is pressed on to standpipe upper port place, make the inner ring surface distortion of small sealing ring 14 choke pump line, realize thus pollution water sample output pump line and be connected with the firm of standpipe.
In the time that the diameter of pump line water delivering orifice is DN150, can directly pump line and current stabilization separator tube 9 be carried out to socket connection; In the time that pump line water delivering orifice diameter is less than DN150, can take over tower seat 12 by adapted, pump line and standpipe are carried out to socket connection.
The shunting pressure regulator valve being arranged in current stabilization separator tube 9 lower port can use polytype valves such as ball valve, butterfly valve, stop valve or gate valve.It shown in Fig. 1, is a kind of easy shunting pressure regulator valve, its structure is on an axis 6, to make one section of recessed notch, circular valve plate 5 is rabbeted in this notch, and fixed with screw, the periphery of valve plate 5 can arrange O-ring seal (O-ring seal also can be set), valve plate 5 can be fitted with the inwall of current stabilization separator tube 9, with the lower port of shutoff current stabilization separator tube 9.Axis 6 is through the interface on current stabilization separator tube tube wall right side, insert in the clamping blind hole on current stabilization separator tube tube wall left side the inner of axis, exposed junction cross-under at axis 6 has handle, get final product rotational valve plate 5 by rotary handle, to adjust the aperture of shunting pressure regulator valve, regulate the water flow pressure of pollution water sample.In the interface on tube wall right side, be sealed with cushion rubber (not shown) and plug 4.The adjustment of shunting pressure regulator valve is to determine according to the instruction of tensimeter 7.
Sampling flexible pipe 1 is the withstand voltage transparent hose made from silica gel, and its one end is connected in the external port of streamlined water delivering orifice 8, and the other end, through concentric type flow regulator, regulates the discharge size that gathers water sample by concentric type flow regulator.Concentric type flow regulator is in a staight shank holding rod 3, to have axial core hole, sampling flexible pipe 1 is through the axial core hole of staight shank holding rod 1, be provided with rotation euphroe 2 in the upper end of holding rod 1, the free-ended extension elongation that sampling flexible pipe 1 passes after holding rod 1 should be no less than 30cm, carries out water sampling operation so that insert in sampling bottle.
Fig. 2 is the first specific implementation of concentric type flow regulator.
As shown in Figure 2, this concentric type flow regulator is in a staight shank holding rod 3, to have axial core hole, sampling flexible pipe 1 is through the core hole of holding rod 3, be provided with the rotation euphroe 2 horizontally rotating in one end of holding rod 3, on the governor motion of rotation euphroe 2, be fixed with fastening rope 20, fastening rope 20 is embedded in the locating groove 301 of outputing in holding rod 3 ends (Fig. 7) after enclosing around sampling flexible pipe 1 one.
Rotation euphroe 2 is to be provided with cylinder seat 205 and vertical shaft seat 209 in one end of holding rod 3, and cylinder seat 205 is relative up and down with vertical shaft seat 209, and the upper end of cylinder seat 205 is opening end, has core hole on the lower surface of cylinder seat 205; In vertical shaft seat 209, be connected with vertical shaft 202, the upper end of vertical shaft 202 is stretched in cylinder seat by the core hole on cylinder seat lower surface.The axis parallel of vertical shaft 202 is in the axial line of holding rod 3, and vertical shaft 202 can rotate by opposed axle bed 209.The set-up mode of vertical shaft can be to be connected with metal ring 208 at the bottom of vertical shaft 202 positioning end, after ring set end is inserted to the position, hole on vertical shaft seat 209, then shelters from ring set 208 with cover plate 207, and vertical shaft 202 is positioned in vertical shaft seat 209.Cover plate 207 is fixed on vertical shaft seat 209 by securing member, to cover position, hole.The top free end of vertical shaft 202 is arranged in cylinder seat 205, is provided with at the free end of vertical shaft 202 the outer tooth bar that a circle is parallel to vertical shaft axial line.Fastening rope 20 passes after the eyelet holding rod 3 from inner side, core hole, and fixing also solderless wrapped connection is in the exposed length of vertical shaft 202.Cross-under eyelet is on the holding rod 3 between cylinder seat and vertical shaft seat.On the free-ended end face of vertical shaft 202, have quadrangular that grafting unlock key uses or the jack 210 of hexagon.In cylinder seat 205, be provided with to lock in axial sliding and put ring 201, the sidewall of putting ring 201 at lock has notch 203, the screw 204 that utilizes cross-under cylinder seat 205 sidewalls and lock are put coordinating of notch 203 on ring, can make lock put ring 201 and can only in cylinder seat 205, slide axially and can not rotate.Put on the inner ring surface that encircles 201 and be provided with the inner rack that a circle can be meshed with the outer tooth bar on vertical shaft 202 at lock.In cylinder seat 205, be provided with spring 206, make lock put ring 201 under normal conditions by overhead to the position mutually concordant with cylinder seat 205 ports, to put the intermeshing of outer tooth bar on inner rack and the vertical shaft 202 on ring by lock, and by vertical shaft 202 lockings firmly.
In process, occur that the situation that the increment of inside and outside tooth bar pins mutually occurs for avoiding lock to put ring 201 moving up and down, the lower end that lock can be put to the outer tooth bar on upper end and the vertical shaft 202 of the inner rack of ring in 201 is made for respectively the pointed shape of triangle etc., the cooperation so that inside and outside tooth bar is pegged graft each other.
Lock is put to the unlocking operation of ring 201, by custom-designed unlock key 211(Fig. 3) carry out; To the flow regulation of sampling flexible pipe 1, also operate by unlock key 211.In Fig. 3, on unlock key 211, be provided with pushing and lock external toroidal ring 213 and the quadrangular of grafting vertical shaft or the inserted link of hexagon 212 of putting ring.In inserted link 212 is plugged into the prismatic jack 210 on vertical shaft 202 after (being inserted into the end), external toroidal ring 213 on unlock key 211 pushes in cylinder seat 205 with putting ring 201 by lock, the outer tooth bar that lock is put on inner rack and the vertical shaft 202 on ring is separated, now, by rotating the handle of unlock key, can stir vertical shaft 202 clockwise or rotate counterclockwise, the fastening rope 20 that makes to be connected on vertical shaft 202 is tightened up or loosens, thereby to fastening rope around sampling flexible pipe 1 carry out concentric folding and unfolding, make the streamline bundle that gathers water sample remain " cylinder " shape, reduce thus volatilization, the probability that half volatile material is separated out.
In Fig. 2, on the inwall of the core hole of holding rod 3, can make the ring groove (relative with the eyelet of cross-under fastening rope) of an about 2mm of the degree of depth so that fastening rope 20 can embedded groove in, freely hoop slides.
Fig. 4-Fig. 6 is the second specific implementation of concentric type flow regulator.
As shown in Figure 4, Figure 5, this concentric type flow regulator is in staight shank holding rod 3, to have axial core hole, sampling flexible pipe is through the core hole of holding rod 3, be provided with the rotation euphroe 2 that facade rotates in one end of holding rod 3, on the governor motion of rotation euphroe 2, be fixed with fastening rope 20, fastening rope 20 is embedded in the locating groove 301 of outputing in holding rod 3 ends (Fig. 7) after enclosing around sampling flexible pipe 1 one.
As Fig. 5, shown in Fig. 6, rotation euphroe 2 is to be connected with one heart seat board 221 in circle by semi-girder on a side opening of urceolus circle 224, be respectively arranged with opening inner core circle 220 at the medial surface of interior seat board 221 and dial device with the pressure that is positioned at opening inner core circle inside, on opening inner core circle 220, be provided with the open section of approximately 120 ° of central angles, on the another side opening of urceolus circle 224, be sealed with circular cover 229, on cover plate 229, be connected to rotating central shaft 225, be connected to the circular cap type thumb wheel 223 of outward opening in the end of central shaft 225, the wheel of thumb wheel 223 is along the periphery face that is positioned at opening inner core circle 220, be provided with the interior tip surface 230 of a circle axial distribution along medial surface at the wheel of thumb wheel 223, wheel at thumb wheel 223 is evenly equipped with and stirs group beans 222 that thumb wheel is used along end face, described group of beans 222 protrude from the end face on wheel edge.Urceolus circle 224 is fixed on holding rod 3, and central shaft 225 is horizontally disposed with, and perpendicular with the axis of holding rod 3.Fastening rope 20 penetrates by the eyelet on urceolus circle 224, fixing also solderless wrapped connection is on central shaft 225, stir beans 222 with pointing from the lateral opening of rotation euphroe 2, make thumb wheel 223 forward or reverse, to adjust the elasticity that is wrapped in the fastening rope 20 on sampling flexible pipe 1, thereby reach the object that sampling flexible pipe 1 is carried out to the adjustment of concentric-ring pattern.
The pressure of rotation in euphroe 2 dialled device to be for locking or to loosen thumb wheel, its structure as shown in Figure 5, comprise two shift forks 227 and the fan-shaped shifting block 226 between two shift forks, one end of two shift forks 227 is hinged on respectively on the inwall of opening inner core circle 220, the other end of two shift forks 227 stretches out respectively the open section of opening inner core circle 220, and under the stirring of shifting block 226, be connected to described thumb wheel 223 and take turns along on the interior tip surface 230 on medial surface, thumb wheel 223 is locked.Outside the middle part of two shift forks 227 and between the inwall of opening inner core circle 220, be respectively equipped with the top spring 228 that promotes shift fork return.On shifting block 226, be connected to turning handle 231 by coupling shaft, described turning handle 231 is arranged on the lateral surface of described interior seat board 221.
Principle of work of the present utility model is: the water outlet of pump line mouth directly enters in current stabilization separator tube 9, regulates shunting pressure regulator valve, and the reading that makes tensimeter 7 is 0.18~0.2MPa; Grasp concentric type flow regulator, stretching sampling flexible pipe 1, makes its water delivering orifice upward, exceeds the end face 800mm of current stabilization separator tube 9 and is erectility; Slowly regulate concentric type flow regulator, the water polo face height of flexible pipe 1 water outlet that makes to sample is less than 5mm, and the flexible pipe 1 of guaranteeing to sample is inner and the current of water outlet in lose bubble; The water delivering orifice of sampling flexible pipe 1 is slowly inserted in the sampling bottle (for the sample collection containing half volatile material) of 2000ml, until the water side of sampling flexible pipe 1 is about 5~8mm with bottle end distance, place motionlessly, when the water surface is from the about 50mm of bottleneck distance in bottle, slowly propose sampling flexible pipe 1.Carrying in pipe process, ensure that the water delivering orifice of sampling flexible pipe 1 and the water surface distance in bottle are not more than 5mm, until sampling bottle is filled water sample.Finally tighten bottle cap, be inverted micro-striking, in bottle, without Bubble formation, complete the collecting work of large bottle sample.
While gathering the pollution water sample that contains volatile matter, the flexible pipe 1 of sampling slowly inserts in sampling bottle (2 40ml), along with the continuous rising of the water surface in bottle, slowly promote sampling flexible pipe 1, carry in pipe process, the water delivering orifice and the water surface distance that ensure sampling flexible pipe 1 are not more than 5mm, until fill water sample, tighten bottle cap, be inverted micro-striking, in bottle, without Bubble formation, complete sample collection.

Claims (6)

1. a mouth of pipe reducing plug-in type sampling instrument, is characterized in that, comprising:
Current stabilization separator tube, is the cylindrical tube of both ends open, is shaped with external thread in body upper port, has streamlined water delivering orifice on tube wall, for accepting the pollution water sample of pumping and pollution water sample being carried out to current stabilization conveying;
Pump line bindiny mechanism, is arranged in the upper port of described current stabilization separator tube, exports being fixedly connected with of pump line for realizing with pollution water sample;
Shunting pressure regulator valve, is arranged in the lower port of described current stabilization separator tube, for the water flow pressure of regulating flow-stabilizing separator tube pollution water sample;
Tensimeter, is arranged on the tube wall of described current stabilization separator tube, for detection of the water flow pressure of pollution water sample in current stabilization separator tube;
Sampling flexible pipe, is connected in the external port of described streamlined water delivering orifice, for guiding out pollution water sample laminar condition from described current stabilization separator tube to carry out water sampling; And
Concentric type flow regulator, is socketed on described sampling flexible pipe, for regulating the uninterrupted that gathers water sample;
Described pump line bindiny mechanism comprises:
Take over tower seat, formed by one section of standpipe and the Circular Plate that is connected to described standpipe lower port, upper port at described standpipe is shaped with external thread, the external diameter of described Circular Plate is identical with the upper end external diameter of described current stabilization separator tube, to hide the upper port of described current stabilization separator tube, the internal diameter of described standpipe is slightly larger than the external diameter of pollution water sample output pump line, to peg graft and to coordinate with pollution water sample output pump line;
The large pressure cap of annulus, by with being threaded of described current stabilization separator tube, the described Circular Plate on described adapter tower seat is crimped in the upper port of described current stabilization separator tube;
Large sealing packing ring, liner is between the upper port of described current stabilization separator tube and the described Circular Plate of described adapter tower seat;
Small sealing ring, for being socketed pollution water sample output pump line the liner upper port place at the described standpipe of described adapter tower seat; And
The little pressure cap of annulus, by with being threaded of described standpipe on described adapter tower seat, realize the pollution water sample output pump line being plugged in described standpipe and be connected with the firm of described standpipe;
Described concentric type flow regulator is in a staight shank holding rod, to have axial core hole, described sampling flexible pipe is through the described core hole of described staight shank holding rod, be provided with rotation euphroe in one end of described holding rod, on the governor motion of described rotation euphroe, be fixed with fastening rope, described fastening rope is embedded in the locating groove of outputing in described holding rod end after enclosing around described sampling flexible pipe one.
2. mouth of pipe reducing plug-in type sampling instrument according to claim 1, it is characterized in that, described shunting pressure regulator valve be on an axis, be connected to can shutoff described in the circular valve plate of current stabilization separator tube lower port, described axis is through the interface on described current stabilization separator tube tube wall, in its inner clamping blind hole of inserting on described current stabilization separator tube tube wall, exposed junction cross-under at described axis has handle, is sealed with cushion rubber and plug in described interface.
3. mouth of pipe reducing plug-in type sampling instrument according to claim 1, it is characterized in that, described rotation euphroe is to be provided with in the upper end of described holding rod axially to deflect away from outside, core hole and cylinder seat opposing upper and lower and vertical shaft seat, the top of described cylinder seat is opening end, on the base plate of described cylinder seat, has jack hole; In described vertical shaft seat, be connected with the rotatable vertical shaft as governor motion, the upper end of described vertical shaft is stretched in described cylinder seat through described jack hole, is provided with the outer tooth bar that a circle is parallel to vertical shaft axial line in the upper end of described vertical shaft; In described cylinder seat, be provided with to lock in axial sliding and put ring, put at described lock on the inner ring surface of ring and be provided with the inner rack that a circle can be meshed with the described outer tooth bar on described vertical shaft; In described cylinder seat, be provided with top spring, make described lock put ring under normal conditions by overhead to the position mutually concordant with described cylinder seat upper port, to engage vertical shaft described in locking by tooth bar; Described holding rod on the body of rod between described cylinder seat and described vertical shaft seat, have horizontal eyelet, the described fastening rope passing from described eyelet is fixed on described vertical shaft; Have prismatic key hole in the upper surface of described vertical shaft.
4. mouth of pipe reducing plug-in type sampling instrument according to claim 3, is characterized in that, the degree of depth of described key hole is to be inserted at key at the end, makes described lock put ring and is pressed down by key and depart from and the engaging of described outer tooth bar on described vertical shaft.
5. mouth of pipe reducing plug-in type sampling instrument according to claim 3, is characterized in that, the lower end that described lock is put the described outer tooth bar on upper end and the described vertical shaft of the described inner rack in ring is respectively is convenient to the pointed shape of pegging graft and coordinating each other.
6. mouth of pipe reducing plug-in type sampling instrument according to claim 3, is characterized in that, the profile of tooth that described lock is put the described outer tooth bar on described inner rack and the described vertical shaft in ring is respectively triangle.
CN201420055993.8U 2014-01-28 2014-01-28 Pipe orifice variable-diameter plug-in sampling instrument Withdrawn - After Issue CN203705218U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103743599A (en) * 2014-01-28 2014-04-23 中国地质科学院水文地质环境地质研究所 Tube orifice diameter variable spliced sampling instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103743599A (en) * 2014-01-28 2014-04-23 中国地质科学院水文地质环境地质研究所 Tube orifice diameter variable spliced sampling instrument

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