CN201145701Y - Grating open channel fluid current velocity measurement sensing device - Google Patents
Grating open channel fluid current velocity measurement sensing device Download PDFInfo
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- CN201145701Y CN201145701Y CNU2007201848066U CN200720184806U CN201145701Y CN 201145701 Y CN201145701 Y CN 201145701Y CN U2007201848066 U CNU2007201848066 U CN U2007201848066U CN 200720184806 U CN200720184806 U CN 200720184806U CN 201145701 Y CN201145701 Y CN 201145701Y
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Abstract
The utility model relates to a grating open-channel fluid measuring and sensing device for loading special fluid in the industries such as petroleum oil, water conservancy, hydroelectric power and environmental protection, etc. The device comprises a bracket, an outer cylinder of a roller, an inner cylinder of the roller, blades, bearing sets, a grating coding mask, a power and signal cable, a hollow shaft lever, a photoelectric sensing device and a sealing member. The outer cylinder of the roller is connected with the inner cylinder of the roller. The center of a cavity is provided with the hollow shaft lever. The cavity of the hollow shaft lever is provided with the power and signal cable inside, the middle part of the cavity is provided with the photoelectric sensing device, and the two ends of the cavity are respectively provided with the bearing sets. A projection at the middle part of the inner cylinder of the roller is connected with the grating coding mask. The two sides of the grating coding mask are respectively corresponded to a light source and a light receiving element of the photoelectrical sensing device. The blades are uniformly arranged on the surface of the outer cylinder of the roller. Two forked ends of the bracket are respectively connected with the two ends of the hollow shaft lever which stretches out of a pontoon. The device is simple in structure, reliable in work and strong in adaptation. The device has the functions of float and rotation, can wash mud cakes, dry mud, and slopping attachments under the action of the fluid and guarantee that the device can normally work for a long time in the environment such as in ropy slurry and sewage, etc., thereby being favorable for the accurate measurement of the flow speed of the fluid.
Description
Technical field
The utility model relates to a kind of sensing device that industries such as oil, water conservancy, water power, environmental protection are carried special fluid (as mud, corrosive fluid) fluid-velocity survey that is used for.
Background technology
Measure the flow velocity of open channel and the flow that sectional area can obtain open channel.For a long time, because thickness and have corrosivity, and outlet stream interface height is uncertain, brings great difficulty to flow measurement such as special fluids such as oil drilling slurries.To this, the on-the-spot palm formula flow measurement device that adopts contact to swim in flow surface such as mud usually, has a turbine carries out fluid-velocity survey, yet, because the sunshine when mud thickness and cutout is withered, can make this device be stuck with paste dead by mud and can't be floating or turbine stuck with paste deadly by mud, thereby use and have limitation.Another is the liquid level by ultrasonic measurement open channel and cell body, calculates the interface sectional area of open channel, by cooperating with the flow velocity of manual measurement, estimates the flow of open channel, this method, because flow velocity is not real-time measurement data, accuracy is affected.Also have electromagnetic current speed to measure, pass through to measure methods such as mud particle reflection supersonic wave fluid-velocity survey in addition,, be difficult to apply because the petroleum drilling environment is abominable and the limitation of work-yard.
The utility model content:
The purpose of this utility model be to provide a kind of simple in structure, adaptability strong, reliable operation, the grating channel flow rate of flow of fluid that helps accurately measuring are measured sensing device.
The technical solution of the utility model is as follows: this kind rate of flow of fluid is measured sensing device by floating drum, blade, support, the grating encoding dish, photoelectric sensing apparatus, hollow axis pole, bearing pack, electric power and signal cable are formed, the floating drum urceolus is provided with inner core in the chamber, be connected by end cap between the two, inner core central authorities are provided with hollow axis pole, be provided with electric power and signal cable in the hollow axis pole chamber, the middle part is connected with photoelectric sensing apparatus, two ends are respectively equipped with bearing pack, the cylinder inner core is connected with the grating encoding dish, and the grating encoding dish is between the light source and light receiving element of photoelectric sensing apparatus; The floating drum surface is evenly equipped with blade, and support two divergent ends are connected with the hollow axis pole two ends of stretching out floating drum respectively, and electric power in the support chamber and signal cable are connected with electric power and signal cable two ends in the hollow axis pole respectively.During use, the utility model is fixedly mounted on the top of open channel (truss) by support.During installation, entire bracket is fixed by a rotating fulcrum vertical hanging, and the blade bottom end of floating drum and the bottom of open channel are just left.During actual the use, if the liquid measure in the open channel is less, fluid impact bottom blade rotates cylinder; When if the liquid measure in the open channel is enough big, can lean on the buoyancy of hollow cylinder self to swim in the surface of fluid, because the traction of support becomes the direction that flows to fluid by the vertical hanging state and tilts, fluid impact blade simultaneously, the floating drum of hollow with fluid impact around spindle rotation.During work, at first give light source and light receiving element power supply by electric power and signal cable, the blade of fluid impact cylinder bottom, make cylinder around spindle rotation, also light source on axle and light receiving element rotation of the grating encoding dish that is connected with the cylinder inner core like this, cylinder whenever rotates to an angle, the light that light source sends just sees through the grating of grating encoding dish, shine light receiving element once, light receiving element just produces a pulse signal, this signal spreads out of by electric power and signal cable, the grating grid number of grating encoding dish is certain, and the grating umber of pulse by statistics accumulative total can obtain the floating drum rotating cycle, the product of the number of turns that the girth by calculating floating drum and unit interval rotate just can obtain the flow velocity of open channel inner fluid.
The utility model novel structure, reasonable in design, reliable operation, adaptability is strong, itself have floating and spinfunction concurrently, under the fluid effect, can wash, guarantee under the environment such as mud, sewage at thickness still operate as normal for a long time mud cake, dried mud and splash attachment, have advantages such as failure rate is low, long service life, help the accurate measurement of rate of flow of fluid.
Description of drawings:
Fig. 1 is the utility model float-plane version structural representation.
Fig. 2 is a utility model float-plane version structure side view.
Fig. 3 is the partial cross-sectional perspective view of utility model float-plane version structure.
Fig. 4 is a utility model ball float type structural representation.
Embodiment:
Below in conjunction with accompanying drawing enforcement of the present utility model is described further.
As shown in the figure, the utility model is by support 1, cylinder urceolus 2, cylinder inner core 3, blade 4, bearing pack 5, grating encoding dish 6, electric power and signal cable 7, hollow axis pole 8, photoelectric sensing apparatus 9, seal 10 is formed, its structure assembled relation is as follows: connect inner core 3 in cylinder urceolus 2 chambeies, be connected by end cap between the two, inner core 3 central authorities are provided with hollow axis pole 8, be provided with electric power and signal cable 7 in axostylus axostyle 8 chambeies, the middle part is connected with photoelectric sensing apparatus 9, two ends are respectively equipped with bearing pack 5, cylinder inner core 3 intermediate projections portions are connected with grating encoding dish 6, and grating encoding dish 6 is between the light source and light receiving element of photoelectric sensing apparatus 9; The floating drum surface is evenly equipped with blade 4, and 1 liang of divergent ends of support is connected with hollow axis pole 8 two ends of stretching out floating drum respectively, and electric power in support 1 chamber and signal cable 7 are connected with electric power and signal cable 7 two ends in the hollow axis pole 8 respectively.Wherein, be vertical body in the middle of the support 1, both sides are the bifurcated pipe, electric power and signal cable 7 can be set in the chamber, and cylinder urceolus 2 is a cylinder type hollow cylindrical shell (see figure 3), also can be hollow ball body (see figure 4), outside surface welding or riveted joint have blade 4, also can be made into one.Support 1, cylinder urceolus 2 can adopt metal or high strength hard plastic production.Cylinder inner core 3 is the hollow cylinder of a middle part projection.Rise.Grating encoding dish 6 is a torus, and its periphery is evenly equipped with a plurality of rectangle grids.Photoelectric sensing apparatus 9 shape that takes the shape of the letter U, its U-shaped two ends are respectively light source and light receiving element, also can adopt photodiode emission and reception group.
The utility model also can adopt another kind of frame mode, and the grating encoder product of moulding directly is connected between the inner/outer tube of cylinder.
Claims (7)
1, a kind of grating rate of flow of fluid is measured sensing device, by support (1), cylinder urceolus (2), cylinder inner core (3), blade (4), bearing pack (5), grating encoding dish (6), electric power and signal cable (7), hollow axis pole (8), photoelectric receiving arrangement (9), seal (10) is formed, it is characterized in that, connect inner core (3) in cylinder urceolus (2) chamber, be connected by end cap between the two, inner core (3) central authorities are provided with hollow axis pole (8), be provided with electric power and signal cable (7) in axostylus axostyle (8) chamber, the middle part is connected with photoelectric sensing apparatus (9), two ends are respectively equipped with bearing pack (5), cylinder inner core (3) intermediate projections portion is connected with grating encoding dish (6), and grating encoding dish (6) is positioned between the light source and light receiving element of photoelectric sensing apparatus (9); The floating drum surface is evenly equipped with blade (4), support (1) two divergent ends is connected with the hollow axis pole that stretches out floating drum (8) two ends respectively, electric power in support (1) chamber and signal cable (7) respectively with hollow axis pole (8) in electric power and signal cable (7) two ends be connected.
2, grating channel flow rate of flow of fluid according to claim 1 is measured sensing device, it is characterized in that, and be vertical body in the middle of the support (1), two ends are the bifurcated pipe, and electric power and signal cable (7) can be set in the chamber.
3, grating channel flow rate of flow of fluid according to claim 1 is measured sensing device, it is characterized in that cylinder urceolus (2) is the cylinder type hollow cylindrical shell, also can be the hollow ball body, and urceolus surface-welding or riveted joint have blade (4), also can be made into one.
4, grating channel flow rate of flow of fluid according to claim 1 is measured sensing device, it is characterized in that grating encoding dish (6) is a torus, and its periphery is evenly equipped with a plurality of rectangle grids.
5, grating channel flow rate of flow of fluid according to claim 1 is measured sensing device, it is characterized in that cylinder inner core (3) is the hollow cylinder of a middle part projection.
6, grating channel flow rate of flow of fluid according to claim 1 is measured sensing device, it is characterized in that, and photoelectric sensing apparatus (9) shape that takes the shape of the letter U, its U-shaped two ends are respectively light source and light receiving element, also can adopt photodiode emission and reception group.
7, grating channel flow rate of flow of fluid according to claim 1 is measured sensing device, it is characterized in that the utility model also can adopt another kind of frame mode, and the grating encoder product of moulding directly is connected between the inner/outer tube of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201848066U CN201145701Y (en) | 2007-12-17 | 2007-12-17 | Grating open channel fluid current velocity measurement sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201848066U CN201145701Y (en) | 2007-12-17 | 2007-12-17 | Grating open channel fluid current velocity measurement sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201145701Y true CN201145701Y (en) | 2008-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201848066U Expired - Fee Related CN201145701Y (en) | 2007-12-17 | 2007-12-17 | Grating open channel fluid current velocity measurement sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201145701Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU178685U1 (en) * | 2017-06-28 | 2018-04-17 | федеральное государственное бюджетное образовательное учреждение высшего образования "Российский государственный гидрометеорологический университет" | Autonomous device for measuring the speed of water flow in small streams |
-
2007
- 2007-12-17 CN CNU2007201848066U patent/CN201145701Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU178685U1 (en) * | 2017-06-28 | 2018-04-17 | федеральное государственное бюджетное образовательное учреждение высшего образования "Российский государственный гидрометеорологический университет" | Autonomous device for measuring the speed of water flow in small streams |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |