CN206583796U - A kind of turbidity detection device of pipe network tip - Google Patents
A kind of turbidity detection device of pipe network tip Download PDFInfo
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- CN206583796U CN206583796U CN201720119653.0U CN201720119653U CN206583796U CN 206583796 U CN206583796 U CN 206583796U CN 201720119653 U CN201720119653 U CN 201720119653U CN 206583796 U CN206583796 U CN 206583796U
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Abstract
The utility model is related to a kind of turbidity detection device suitable for pipe network tip, including：Housing, motor, piston component, cuvette, the top of the cuvette is located at enclosure interior, and the bottom of the piston component is set in cuvette；Turbidimetry portion, the outside of the turbidimetry portion socket cuvette bottom is simultaneously fixedly connected with the casing, and the inside in the turbidimetry portion is provided with LED/light source and at least two optical signal detecting devices, bottom, the bottom provided with water inlet duct；The one end in the water inlet duct is connected with cuvette, and the other end is connected by the first pressure maintaining valve with pipe network pipeline.Turbidity detection device of the present utility model suitable for pipe network tip can have voltage stabilizing function with collection water sample with pressure, measuring chamber, eliminate the condition of bubble release, eliminate extra defoaming device；In addition LED/light source is used, replacing light source is eliminated；Mode of operation with pressure directly ensure that sampling water is significantly lower than conventional equipment, greatly reduce operating cost.
Description
Technical field
The utility model is related to environmental detection set field, specifically, is related to a kind of Turbidity measurement dress of pipe network tip
Put.
Background technology
In recent years, with the fast development of city-building and being on the increase for skyscraper quantity, the safety of secondary water-supply
Stable particularly water quality safety has become the weak link in current urban water supply safety, and " ten, water " is distinctly claimed to be protected with all strength
Hinder water ecological environment safety.Set up from water source to tap overall process oversight mechanism, periodically announce safe drinking water situation, science is prevented
Control underground water pollution, it is ensured that drinking water safety.Output water is typically provided with corresponding water quality online detection instrument, and pipe network is big
Part is only equipped with the measuring instruments such as pressure flow, and water quality monitoring is still unsound, in the long run, and conditional water-supplying unit should tie
The water supply situation (such as effluent quality, pressure of supply water, caliber, length, flow velocity) of oneself is closed, ductwork water quality is set up (such as：Chlorine residue,
Turbidity etc.) model system, above-mentioned water quality project is simulated with time, the changing rule in space.By long-term data accumulation and greatly
Data analysis preferably carries out early warning and prevention, preferably ensures drinking water safety.Ductwork water quality detection parameter mainly includes turbid
Degree, chlorine residue and PH tri-.
After wherein turbidimetry existing scheme is pre-processed using defoaming device to water sample mostly, carried out in flow cell
90 ° of scattering photo measures, turbidimetry is realized with this.Its froth breaking principle is all based under normal pressure open state, and water sample is filled in froth breaking
Stirred in putting by gravity, bubble can be from air be spilled over to naturally on the water surface.For its detection light source one of the drinking water of low turbidity
As use tungsten lamp, it is necessary to periodic cleaning defoaming device and flow cell, light source tungsten lamp needs periodic replacement as consumptive material, in order to ensure
The reliability of measurement is also required to sampling water, and consumptive material and sampling water can all cause the increase of operating cost.
Utility model content
Technical problem to be solved in the utility model be to provide one kind can work with pressure, water is few, and light source life is long,
The small turbidity meter of maintenance.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：
The utility model provides a kind of turbidity detection device suitable for pipe network tip, including：
Housing, the housing is hollow column,
Motor, the motor connection in housing upper end,
Piston component, the piston component is arranged on the enclosure interior；The piston component is connected with motor；
Cuvette, the top of the cuvette is located at enclosure interior, and the bottom of the piston component is set in cuvette；
Turbidimetry portion, the outside of the turbidimetry portion socket cuvette bottom is simultaneously tightly connected, institute with lower housing portion
The inside for stating turbidimetry portion is provided with LED/light source and at least two optical signal detecting devices, at least two optical signal detecting
Device is located on send 90 ° of light beam of LED/light source and 180 ° of direction respectively；
Bottom, the bottom is connected with the lower end in turbidimetry portion, and the bottom is connected with the lower end of cuvette, institute
State in bottom provided with water inlet duct；The one end in the water inlet duct is connected with cuvette, the other end by the first pressure maintaining valve with
Water inlet pipe network pipeline is connected.
The beneficial effects of the utility model are：Pressure in the cuvette is close with the pressure in pipe network pipeline, eliminates
The condition of bubble release, eliminates extra defoaming device；And the setting of pressure maintaining valve causes the device can be with collection with pressure
Water sample, and make that there is voltage stabilizing function in measured zone, it is to avoid pressed caused by the pressure change in pipe network pipeline and to measuring apparatus
Fluctuation, damages equipment, influences measurement result；And due to being joined directly together with pipe network, so water temperature change also can be small；In addition adopt
With LED/light source, replacing light source is eliminated；Mode of operation with pressure directly ensure that sampling water is significantly lower than conventional equipment, for
For the pipe network application having a large capacity and a wide range, operating cost is greatly reduced；Piston cleans cuvette automatically, and not only increasing measurement can
Maintenance workload is more reduced by property.
Further, the piston component includes:
Leading screw, the upper end of the leading screw is connected with motor output shaft；
Piston, the lower end connection of the piston and leading screw, the piston is socketed in cuvette and under the drive of motor
Pumped in cuvette；The internal piston is provided with water outlet duct, one end and the cuvette phase in the water outlet duct
The connection other end is connected by the second pressure maintaining valve with exterior line.
Further, the leading screw is connected with piston by flange.
Further, the lower surface of the piston is in funnel-form.
Beneficial effect using above-mentioned further scheme is：Device in the form of piston can realize the automatic cleaning of equipment；Make
Safeguard simpler easy.
Further, the turbidimetry portion and the junction of housing are folded with for sealed first sealing ring；The ratio
The lower end of color ware is folded with for sealed second sealing ring with bottom junction；It is socketed with the outer wall of the piston for close
Seal cavity is formed in 3rd sealing ring of envelope, the cuvette.
Beneficial effect using above-mentioned further scheme is：Sealed cuvette measuring chamber coordinates the use of pressure maintaining valve, makes
It has voltage stabilizing function, eliminates the condition of bubble release, eliminates extra defoaming device.
Further, two the 3rd sealing rings being set up in parallel up and down are socketed with the piston.
Beneficial effect using above-mentioned further scheme is：The setting of two the 3rd sealing rings makes between piston and cuvette
Sealing effectiveness it is more preferable.
Further, plane where the lower end of the cuvette and the place plane in turbidimetry portion are parallel plane.
Beneficial effect using above-mentioned further scheme is：The error of detection is reduced, so that detection data are more accurate.
Further, the water inlet duct is shaped form duct, the shaped form duct helically wire.
Beneficial effect using above-mentioned further scheme is：The setting in shaped form duct ensure that current along cuvette
Inwall tangential direction spiral rotating, plays a part of self-cleaning.
Further, the LED/light source is two LEDs, and the direction of illumination of described two LED positions is mutually perpendicular to, described
Signal supervisory instrument is two and is oppositely arranged and is located on the direction of illumination of LED with LED respectively, the LED and light
Signal supervisory instrument is located in same level plane.
Beneficial effect using above-mentioned further scheme is：Realizing the compensation and early warning of light makes measurement data more accurate.
This programme is mainly for pipe network and the turbidimetry of pipe network tip, and its turbidity value is relatively low, and 1NTU should be less than when up to standard,
So according to the standard of U.S. EPA 180.1, light source color temperature is 2200-3000 ° of K, and reception light is 400nm-700nm, with LED skills
The maturation of art, disclosure satisfy that the LED of the requirement is ripe, and this programme replaces the tungsten lamp in exemplary standard to have substantially using led
Advantage.Measure photodetector to be located at outside the cuvette with light beam in 90 degree of directions, main detection crest is 400-700nm's
Visible ray.The detector in 180 degree direction is mainly used to compensate and alarmed.
It is as follows that it compensates alarm principle：Wherein 180 degree light I1=I0e-K1CL, under conditions of L and C very littles, we can be with
It is approximately considered 180 degree light and represents the intensity of light source, I1=k3I0；The approximate I of 90 degree of light2=KCI0.Thus I2/I1It is approximately equal to k/
K3C, eliminates the error that light source change is brought in the range of small turbidity.
Wherein, C is turbidity value, K, K3For coefficient；I0For the intensity of light source；I1For 180 degree direction light intensity；I2For 90 degree of directions
Light intensity.
Based on above-mentioned principle, when changing value in the reasonable scope when, 180 degree light I1 provides compensation for 90 degree of light I2 so that
Make the turbidity value of calculating small range more accurate；And when its changing value exceeds zone of reasonableness, then alarm is sent, point out user
Carry out detection, the maintenance of equipment.
Further, the housing is provided with piston upper limit position switch and piston lower position switch, and the piston is provided with fixed
Position bar, the piston upper limit position switch and piston lower position switch and motor are electrically connected with the controller, the piston upper limit
Switch and piston lower position switch sense its position relationship between locating rod and are transferred to control, when locating rod reaches piston
During the position of upper limit position switch or piston lower position switch, controller controlled motor stops operating.
Beneficial effect using above-mentioned further scheme is：Pass through piston upper limit position switch and piston lower position switch and work
Motion of the locating rod beyond the Great Wall so as to preferably limit piston is interval.
Further, the motor is stepper motor.
Further, top cover is provided with above the motor, the top cover is connected to form hollow cavity with housing, the motor
In the hollow cavity.
Beneficial effect using above-mentioned further scheme is：The setting of top cover can preferably protect motor.
Brief description of the drawings
Fig. 1 is the structural representation of the turbidity detection device of the present utility model suitable for pipe network tip；
Fig. 2 is a kind of cross section in turbidimetry portion of the turbidity detection device of the present utility model suitable for pipe network tip
Structural representation；
Fig. 3 is a kind of cross section in turbidimetry portion of the turbidity detection device of the present utility model suitable for pipe network tip
Structural representation；
Fig. 4 is a kind of cross section in turbidimetry portion of the turbidity detection device of the present utility model suitable for pipe network tip
Structural representation；
Fig. 5 is that the bottom of the turbidity detection device of the present utility model suitable for pipe network tip and the structure in water inlet duct are shown
It is intended to.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit scope of the present utility model.
Embodiment 1
The utility model provides a kind of turbidity detection device suitable for pipe network tip as depicted in figs. 1 and 2, including：
Housing 4, the housing 4 is hollow column,
Motor 2, the motor 2 is connected to the upper end of housing 4,
Piston component, the piston component is arranged on inside the housing 4；The piston component is connected with motor 2；
Cuvette 5, the top of the cuvette 5 is located inside housing 4, and the bottom of the piston component is set in cuvette
In 5；
Turbidimetry portion 6, the outside of the socket cuvette 5 of turbidimetry portion 6 bottom simultaneously connects with the lower seal of housing 4
Connect, the inside in the turbidimetry portion 6 is provided with LED/light source 11 and two optical signal detecting devices 12, described two optical signal inspections
Device 12 is surveyed respectively to be located on send 90 ° of light beam of LED/light source and 180 ° of direction；
Bottom 7, the bottom 7 is connected with the lower end in turbidimetry portion 6, and the bottom 7 is connected with the lower end of cuvette 5
Connect, provided with water inlet duct in the bottom 7；The one end in the water inlet duct is connected with cuvette 5, and the other end is steady by first
Pressure valve 71 is connected with water inlet pipe network pipeline.Pressure in the cuvette is close with the pressure in pipe network pipeline, eliminates gas
The condition of release is steeped, extra defoaming device is eliminated；And the setting of pressure maintaining valve cause the device can with collection water sample with pressure,
And make that there is voltage stabilizing function in measured zone, it is to avoid because of the pressure change in pipe network pipeline to measuring apparatus build-up of pressure ripple
It is dynamic, equipment is damaged, measurement result is influenceed；And due to being joined directly together with pipe network, so water temperature change also can be small；In addition use
LED/light source, eliminates replacing light source；Mode of operation with pressure directly ensure that sampling water is significantly lower than conventional equipment, for amount
For big wide pipe network application, operating cost is greatly reduced.
As the further scheme of the present embodiment, the piston component includes:Leading screw 8, the upper end of the leading screw 8 and motor
2 output shafts are connected or the output shaft of leading screw 8 and the prolongation motor 2 for output shaft is integrally formed；Piston 3, the piston 3
Lower end with leading screw 8 by flange by being connected, and the piston 3 is socketed in cuvette 5 and under the drive of motor 2 in colorimetric
Pumped in ware 5；The inside of piston 3 is provided with water outlet duct, and the one end in the water outlet duct is connected with cuvette 5
The other end is connected by the second pressure maintaining valve 31 with exterior line.The lower surface of the piston 3 is in funnel-form.Dress in the form of piston
The automatic cleaning of equipment can be realized by putting；Make maintenance simpler easy.
As the further scheme of the present embodiment, the junction of the turbidimetry portion 6 and housing 4 is folded with for sealing
The first sealing ring 21；The lower end of the cuvette 5 is folded with for sealed second sealing ring 22 with the junction of bottom 7；
It is socketed with the outer wall of the piston 3 for sealed 3rd sealing ring 23, the cuvette 5 is interior to form seal cavity.Sealing
Cuvette measuring chamber coordinate pressure maintaining valve use, make it have voltage stabilizing function, eliminate bubble release condition, eliminate volume
Outer defoaming device.
As the further scheme of the present embodiment, two the 3rd sealings being set up in parallel up and down are socketed with the piston 3
Circle 23.The setting of two the 3rd sealing rings 23 makes the sealing effectiveness between piston and cuvette more preferable.
As the further scheme of the present embodiment, the place in plane and turbidimetry portion is put down where the lower end of the cuvette
Face is parallel plane, and the difference in height of described two planes is less than or equal to the thickness of the second sealing ring.This set-up mode can subtract
The error detected less, so that detection data are more accurate.
As the further scheme of the present embodiment, as shown in figure 5, the water inlet duct is shaped form duct, the curve
Shape duct helically wire.The setting in shaped form duct ensure that current along cuvette inwall tangential direction spiral rotating,
Play a part of self-cleaning.Current rush across the spiral helicine duct in bottle cap, when it enters cuvette, the inwall of contrastive colours ware
There is the shearing force of axially and tangentially both direction, so that the inwall of cuvette can be cleaned preferably.
As the further scheme of the present embodiment, the housing 4 is opened provided with piston upper limit position switch 9 and piston lower limit
10 are closed, the piston 3 is provided with locating rod, and the piston upper limit position switch and piston lower position switch and motor are and controller
Electrical connection, the piston upper limit position switch and piston lower position switch sense its position relationship between locating rod and are transferred to
Control, when locating rod reaches the position of piston upper limit position switch or piston lower position switch, controller controlled motor stops turning
It is dynamic.
Beneficial effect using above-mentioned further scheme is：Pass through piston upper limit position switch 9 and piston lower position switch 10
With the locating rod on piston so as to which the motion for preferably limiting piston is interval.
As the further scheme of the present embodiment, the motor 2 is stepper motor；The top of motor 2 is provided with top cover 1,
The top cover 1 is connected to form hollow cavity with housing 4, and the motor 2 is located in the hollow cavity.The setting of top cover can
Preferably protect motor.
Embodiment 2
As shown in figures 1 and 3, the utility model provides a kind of turbidity detection device suitable for pipe network tip, including：
Housing 4, the housing 4 is hollow column,
Motor 2, the motor 2 is connected to the top of housing 4,
Piston component, the piston component is arranged on inside the housing 4；The piston component is connected with motor 2；
Cuvette 5, the top of the cuvette 5 is located inside housing 4, and the bottom of the piston component is set in cuvette
In 5；
Turbidimetry portion 6, the outside of the socket cuvette 5 of turbidimetry portion 6 bottom is simultaneously fixedly connected, institute with housing 4
State turbidimetry portion 6 inside be provided with LED/light source 11 and two optical signal detecting devices 12, described two LEDs of LED/light source,
The direction of illumination of described two LED positions is mutually perpendicular to, and described two signal supervisory instruments are oppositely arranged with LED respectively, institute
State LED and optical signal detecting device is located in same level plane；
Bottom 7, the bottom 7 is connected with the lower end in turbidimetry portion 6, and the bottom 7 is connected with the lower end of cuvette 5
Connect, provided with water inlet duct in the bottom 7；The one end in the water inlet duct is connected with cuvette 5, and the other end is steady by first
Pressure valve 71 is connected with water inlet pipe network pipeline.Pressure in the cuvette is close with the pressure in pipe network pipeline, eliminates gas
The condition of release is steeped, extra defoaming device is eliminated；And the setting of pressure maintaining valve cause the device can with collection water sample with pressure,
And make that there is voltage stabilizing function in measured zone, it is to avoid because of the pressure change in pipe network pipeline to measuring apparatus build-up of pressure ripple
It is dynamic, equipment is damaged, measurement result is influenceed；And due to being joined directly together with pipe network, so water temperature change also can be small；In addition use
LED/light source, eliminates replacing light source；Mode of operation with pressure directly ensure that sampling water is significantly lower than conventional equipment, for amount
For big wide pipe network application, operating cost is greatly reduced.
As the further scheme of the present embodiment, the piston component includes:Leading screw 8, the upper end of the leading screw 8 and motor
2 output shafts are connected or the output shaft of leading screw 8 and the prolongation motor 2 for output shaft is integrally formed；Piston 3, the piston 3
Lower end with leading screw 8 by flange by being connected, and the piston 3 is socketed in cuvette 5 and under the drive of motor 2 in colorimetric
Pumped in ware 5；The inside of piston 3 is provided with water outlet duct, and the one end in the water outlet duct is connected with cuvette 5
The other end is connected by the second pressure maintaining valve 31 with exterior line.The lower surface of the piston 3 is in funnel-form.Dress in the form of piston
The automatic cleaning of equipment can be realized by putting；Make maintenance simpler easy.
As the further scheme of the present embodiment, the junction of the turbidimetry portion 6 and housing 4 is folded with for sealing
The first sealing ring 21；The lower end of the cuvette 5 is folded with for sealed second sealing ring 22 with the junction of bottom 7；
It is socketed with the outer wall of the piston 3 for sealed 3rd sealing ring 23, the cuvette 5 is interior to form seal cavity.Sealing
Cuvette measuring chamber coordinate pressure maintaining valve use, make it have voltage stabilizing function, eliminate bubble release condition, eliminate volume
Outer defoaming device.
As the further scheme of the present embodiment, two the 3rd sealings being set up in parallel up and down are socketed with the piston 3
Circle 23.The setting of two the 3rd sealing rings 23 makes the sealing effectiveness between piston and cuvette more preferable.
As the further scheme of the present embodiment, the place in plane and turbidimetry portion is put down where the lower end of the cuvette
Face is parallel plane, and the difference in height of described two planes is less than or equal to the thickness of the second sealing ring.This set-up mode can subtract
The error detected less, so that detection data are more accurate.
As the further scheme of the present embodiment, as shown in figure 5, the water inlet duct is shaped form duct, the curve
Shape duct helically wire.The setting in shaped form duct ensure that current along cuvette inwall tangential direction spiral rotating,
Play a part of self-cleaning.Current rush across the spiral helicine duct in bottle cap, when it enters cuvette, the inwall of contrastive colours ware
There is the shearing force of axially and tangentially both direction, so that the inwall of cuvette can be cleaned preferably.
As the further scheme of the present embodiment, the housing 4 is opened provided with piston upper limit position switch 9 and piston lower limit
10 are closed, the piston 3 is provided with locating rod, and the piston upper limit position switch and piston lower position switch and motor are and controller
Electrical connection, the piston upper limit position switch and piston lower position switch sense its position relationship between locating rod and are transferred to
Control, when locating rod reaches the position of piston upper limit position switch or piston lower position switch, controller controlled motor stops turning
It is dynamic.
Beneficial effect using above-mentioned further scheme is：Pass through piston upper limit position switch 9 and piston lower position switch 10
With the locating rod on piston so as to which the motion for preferably limiting piston is interval.
As the further scheme of the present embodiment, the motor 2 is stepper motor；The top of motor 2 is provided with top cover 1,
The top cover 1 is connected to form hollow cavity with housing 4, and the motor 2 is located in the hollow cavity.The setting of top cover can
Preferably protect motor.
Embodiment 3
As shown in Figure 1 and Figure 4, the utility model provides a kind of turbidity detection device suitable for pipe network tip, including：
Housing 4, the housing 4 is hollow column,
Motor 2, the motor 2 is connected to the top of housing 4,
Piston component, the piston component is arranged on inside the housing 4；The piston component is connected with motor 2；
Cuvette 5, the top of the cuvette 5 is located inside housing 4, and the bottom of the piston component is set in cuvette
In 5；
Turbidimetry portion 6, the outside of the socket cuvette 5 of turbidimetry portion 6 bottom is simultaneously fixedly connected, institute with housing 4
The inside for stating turbidimetry portion 6 is provided with LED/light source 11 and three optical signal detecting devices 12, three optical signal detecting devices
Two in 12 are located on 90 ° of directions of the light beam that LED/light source is sent and 180 ° of a light beam sent positioned at LED/light source
On direction；
Bottom 7, the bottom 7 is connected with the lower end in turbidimetry portion 6, and the bottom 7 is connected with the lower end of cuvette 5
Connect, provided with water inlet duct in the bottom 7；The one end in the water inlet duct is connected with cuvette 5, and the other end is steady by first
Pressure valve 71 is connected with water inlet pipe network pipeline.Pressure in the cuvette is close with the pressure in pipe network pipeline, eliminates gas
The condition of release is steeped, extra defoaming device is eliminated；And the setting of pressure maintaining valve cause the device can with collection water sample with pressure,
And make that there is voltage stabilizing function in measured zone, it is to avoid because of the pressure change in pipe network pipeline to measuring apparatus build-up of pressure ripple
It is dynamic, equipment is damaged, measurement result is influenceed；And due to being joined directly together with pipe network, so water temperature change also can be small；In addition use
LED/light source, eliminates replacing light source；Mode of operation with pressure directly ensure that sampling water is significantly lower than conventional equipment, for amount
For big wide pipe network application, operating cost is greatly reduced.
As the further scheme of the present embodiment, the piston component includes:Leading screw 8, the upper end of the leading screw 8 and motor
2 output shafts are connected or the output shaft of leading screw 8 and the prolongation motor 2 for output shaft is integrally formed；Piston 3, the piston 3
Lower end with leading screw 8 by flange by being connected, and the piston 3 is socketed in cuvette 5 and under the drive of motor 2 in colorimetric
Pumped in ware 5；The inside of piston 3 is provided with water outlet duct, and the one end in the water outlet duct is connected with cuvette 5
The other end is connected by the second pressure maintaining valve 31 with exterior line.The lower surface of the piston 3 is in funnel-form.Dress in the form of piston
The automatic cleaning of equipment can be realized by putting；Make maintenance simpler easy.
As the further scheme of the present embodiment, the junction of the turbidimetry portion 6 and housing 4 is folded with for sealing
The first sealing ring 21；The lower end of the cuvette 5 is folded with for sealed second sealing ring 22 with the junction of bottom 7；
It is socketed with the outer wall of the piston 3 for sealed 3rd sealing ring 23, the cuvette 5 is interior to form seal cavity.Sealing
Cuvette measuring chamber coordinate pressure maintaining valve use, make it have voltage stabilizing function, eliminate bubble release condition, eliminate volume
Outer defoaming device.
As the further scheme of the present embodiment, two the 3rd sealings being set up in parallel up and down are socketed with the piston 3
Circle 23.The setting of two the 3rd sealing rings 23 makes the sealing effectiveness between piston and cuvette more preferable.
As the further scheme of the present embodiment, the place in plane and turbidimetry portion is put down where the lower end of the cuvette
Face is parallel plane, and the difference in height of described two planes is less than or equal to the thickness of the second sealing ring.This set-up mode can subtract
The error detected less, so that detection data are more accurate.
As the further scheme of the present embodiment, as shown in figure 5, the water inlet duct is shaped form duct, the curve
Shape duct helically wire.The setting in shaped form duct ensure that current along cuvette inwall tangential direction spiral rotating,
Play a part of self-cleaning.Current rush across the spiral helicine duct in bottle cap, when it enters cuvette, the inwall of contrastive colours ware
There is the shearing force of axially and tangentially both direction, so that the inwall of cuvette can be cleaned preferably.
As the further scheme of the present embodiment, the housing 4 is opened provided with piston upper limit position switch 9 and piston lower limit
10 are closed, the piston 3 is provided with locating rod, and the piston upper limit position switch and piston lower position switch and motor are and controller
Electrical connection, the piston upper limit position switch and piston lower position switch sense its position relationship between locating rod and are transferred to
Control, when locating rod reaches the position of piston upper limit position switch or piston lower position switch, controller controlled motor stops turning
It is dynamic.
Beneficial effect using above-mentioned further scheme is：Pass through piston upper limit position switch 9 and piston lower position switch 10
With the locating rod on piston so as to which the motion for preferably limiting piston is interval.
As the further scheme of the present embodiment, the motor 2 is stepper motor；The top of motor 2 is provided with top cover 1,
The top cover 1 is connected to form hollow cavity with housing 4, and the motor 2 is located in the hollow cavity.The setting of top cover can
Preferably protect motor.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (10)
1. a kind of turbidity detection device suitable for pipe network tip, it is characterised in that including：
Housing (4), the housing (4) is hollow column,
Motor (2), the motor (2) is connected to housing (4) upper end,
Piston component, it is internal that the piston component is arranged on the housing (4)；The piston component is connected with motor (2)；
Cuvette (5), the top of the cuvette (5) is located at housing (4) inside, and the bottom of the piston component is set in colorimetric
In ware (5)；
Turbidimetry portion (6), the outside of the turbidimetry portion (6) socket cuvette (5) bottom and with housing (4) lower seal
Connection, the inside of the turbidimetry portion (6) is provided with LED/light source (11) and at least two optical signal detecting devices (12), described
At least two optical signal detecting devices (12) are located on send 90 ° of light beam of LED/light source and 180 ° of direction respectively；
Bottom (7), the bottom (7) is connected with the lower end of turbidimetry portion (6), under the bottom (7) and cuvette (5)
End is connected, provided with water inlet duct in the bottom (7)；The one end in the water inlet duct is connected with cuvette (5), the other end
It is connected by the first pressure maintaining valve (71) with water inlet pipe network pipeline.
2. the turbidity detection device according to claim 1 suitable for pipe network tip, it is characterised in that the piston component
Including:
Leading screw (8), the upper end of the leading screw (8) is connected with motor (2) output shaft；
Piston (3), the piston (3) is connected with the lower end of leading screw (8), and the piston (3) is socketed in cuvette (5) and in electricity
Pumped under the drive of machine (2) in cuvette (5)；Water outlet duct, the apopore are provided with inside the piston (3)
The one end in the road other end that is connected with cuvette (5) is connected by the second pressure maintaining valve (31) with exterior line.
3. the turbidity detection device according to claim 2 suitable for pipe network tip, it is characterised in that the piston (3)
Lower surface in funnel-form.
4. the turbidity detection device according to claim 2 suitable for pipe network tip, it is characterised in that the turbidimetry
Portion (6) and the junction of housing (4) are folded with for sealed first sealing ring (21)；The lower end and bottom of the cuvette (5)
The junction of lid (7) is folded with for sealed second sealing ring (22)；It is socketed with the outer wall of the piston (3) for sealing
The 3rd sealing ring (23), seal cavity is formed in the cuvette (5).
5. the turbidity detection device according to claim 4 suitable for pipe network tip, it is characterised in that the piston (3)
On be socketed with two the 3rd sealing rings (23) being set up in parallel up and down.
6. the turbidity detection device according to claim 4 suitable for pipe network tip, it is characterised in that the cuvette
(5) plane where lower end and the place plane of turbidimetry portion (6) are parallel plane.
7. the turbidity detection device according to claim 1 suitable for pipe network tip, it is characterised in that the water inlet duct
For shaped form duct.
8. the turbidity detection device according to claim 1 suitable for pipe network tip, it is characterised in that the LED/light source
For two LEDs, the direction of illumination of described two LEDs positions is mutually perpendicular to, the signal supervisory instrument be two and respectively with
LED is oppositely arranged, and the LED and optical signal detecting device are located in same level plane.
9. the turbidity detection device according to claim 2 suitable for pipe network tip, it is characterised in that the housing (4)
Piston upper limit position switch (9) and piston lower position switch (10) are provided with, the piston (3) is provided with locating rod.
10. according to any described turbidity detection devices suitable for pipe network tip of claim 1-9, it is characterised in that described
Top cover (1) is provided with above motor (2), the top cover (1) is connected to form hollow cavity with housing (4), and the motor (2) is located at
In the hollow cavity.
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| CN201720119653.0U CN206583796U (en) | 2017-02-09 | 2017-02-09 | A kind of turbidity detection device of pipe network tip |
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| CN201720119653.0U CN206583796U (en) | 2017-02-09 | 2017-02-09 | A kind of turbidity detection device of pipe network tip |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706536A (en) * | 2017-02-09 | 2017-05-24 | 天健创新（北京）监测仪表股份有限公司 | Device for detecting turbidity of pipe network end |
| CN109932495A (en) * | 2017-12-19 | 2019-06-25 | 深圳一目科技有限公司 | A kind of water purifier water quality detection module piping installation and its working method |
-
2017
- 2017-02-09 CN CN201720119653.0U patent/CN206583796U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706536A (en) * | 2017-02-09 | 2017-05-24 | 天健创新（北京）监测仪表股份有限公司 | Device for detecting turbidity of pipe network end |
| CN106706536B (en) * | 2017-02-09 | 2023-06-23 | 天健创新（北京）监测仪表股份有限公司 | Turbidity detection device for pipe network terminal |
| CN109932495A (en) * | 2017-12-19 | 2019-06-25 | 深圳一目科技有限公司 | A kind of water purifier water quality detection module piping installation and its working method |
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