CN210400484U - Pressure taking head of Pitotbar flow sensor - Google Patents
Pressure taking head of Pitotbar flow sensor Download PDFInfo
- Publication number
- CN210400484U CN210400484U CN201921961494.4U CN201921961494U CN210400484U CN 210400484 U CN210400484 U CN 210400484U CN 201921961494 U CN201921961494 U CN 201921961494U CN 210400484 U CN210400484 U CN 210400484U
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- pressure
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- passageway
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- 230000003068 static effect Effects 0.000 claims abstract description 64
- 238000010079 rubber tapping Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 abstract description 13
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a pitot bar flow sensor pressure head of getting has the cylindricality and gets the pressure head body, the upper portion of getting the pressure head body is formed with the cylindricality that the diameter reduces and connects, get this internal a plurality of total pressure passageways and the static pressure passageway that are located the relative both sides of pressure head body axis of getting of offering of pressure head, every total pressure passageway and static pressure passageway's axis all parallels with the axis of getting the pressure head body, every total pressure passageway and static pressure passageway all have total pressure passway and the static pressure passway that is located the cylindricality and connects the upper end, every total pressure passageway and static pressure passageway's bottom all has total pressure hole and static pressure port. Use the utility model discloses a get pressure head measuring tube in the pipeline when fluid's total pressure and static pressure, and then measuring tube in the fluid flow, use a plurality of pitot flowmeter simultaneous measurement pipeline in other words in the fluid flow, the average value of whole measuring results can be selected to the flow measurement result, the measuring result is accurate relatively, measurement accuracy is higher.
Description
Technical Field
The utility model relates to a pressure head is got to pitot ba flow sensor.
Background
Among the prior art, pitot bar flow sensor includes the connecting tube and gets the pressure head, it has the cylindricality to get the pressure head body to get the pressure head, the upper portion of getting the pressure head body is formed with the cylindricality that the diameter reduces and connects, get and set up the total pressure passageway and the static pressure passageway that are located the relative both sides of pressure head body axis in the pressure head body, the axis of total pressure passageway and static pressure passageway all parallels with the axis of getting the pressure head body, total pressure passageway and static pressure passageway have total pressure port and the static pressure port that is located the cylindricality and connects the upper end, the lower part of getting the pressure head body has total pressure hole and the static pressure hole that is linked together with total pressure passageway and static pressure passageway. The pressure-taking head is connected with the lower end of the pressure-guiding pipe by a cylindrical joint through a welding method, a full-pressure passage port is connected with the outer pipe of the pressure-guiding pipe, and a static-pressure passage port is connected with the inner pipe of the pressure-guiding pipe to form the Pitotbar flow sensor.
When the pressure-measuring device is used, the Pitot-bar flow sensor is vertically inserted into the pipeline from the side wall of the pipeline, the full pressure hole is opposite to the incoming flow direction of fluid, the static pressure hole is opposite to the outgoing flow direction of the fluid, when the fluid flows in the pipeline, the full pressure interface and the static pressure interface at the upper end of the pressure guide pipe respectively output the full pressure and the static pressure of the fluid flowing in the pipeline, and the flow of the fluid in the pipeline can be calculated according to the fluid mechanics principle by using the full pressure and the static pressure of the fluid flowing in the pipeline.
In the long-term use process of the pressure taking head of the Pitot-bar flow sensor in the prior art, when the pressure taking head is inserted into a measured pipeline, the conditions of scaling of the inner wall of a hole, excessive dust accumulation and crystallization can occur in a full pressure hole or a static pressure hole sometimes, and the outputted full pressure or static signal is not accurate enough, so that the error of the measurement result of the flow of fluid in the pipeline is large.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a can export the multiunit measured pipeline in fluid medium's total pressure and static pressure signal to the pressure head is got to pitot bar flow sensor that can obtain relatively accurate measuring result to the fluid flow in the pipeline.
In order to solve the technical problem, the utility model discloses a pressure head is got to pitot flow sensor has the cylindricality and gets the pressure head body, the upper portion of getting the pressure head body is formed with the cylindricality joint that the diameter reduces, get and set up full pressure passageway and static pressure passageway that lie in the relative both sides of pressure head body axis in the pressure head body, the axis of full pressure passageway and static pressure passageway all parallels with the axis of getting the pressure head body, full pressure passageway and static pressure passageway have full pressure port and the static pressure port that lie in the cylindricality and connect the upper end, full pressure passageway and static pressure passageway be a plurality of, these full pressure passageways and static pressure passageway are seted up at interval in the relative both sides of this axis of pressure head, have the passageway wall between adjacent full pressure passageway and the static pressure passageway, have the full pressure passageway wall between the adjacent full pressure passageway, have the static pressure passageway wall between the adjacent static pressure passageway; one side of the axial line of the pressure taking head body is provided with a plurality of full-pressure inclined planes which are parallel to each other from top to bottom, the full-pressure inclined planes are respectively intersected with the full-pressure channel to form a plurality of full-pressure holes, a full-pressure channel wall plane which is vertical to a plane determined by the axial line of the full-pressure channel is formed on the full-pressure channel wall between every two adjacent full-pressure holes, the other side of the pressure taking head body opposite to the axial line of the pressure taking head body is provided with a plurality of static pressure inclined planes which are parallel to each other from top to bottom, the static pressure inclined planes are respectively intersected with the static pressure channel to form a plurality of static pressure holes, and a static pressure channel wall plane which is vertical to the plane determined by the axial line of the static.
When the pitot flow sensor pressure tapping head with the structure is used, the full-pressure channel ports and the static-pressure channel ports are connected with a plurality of full-pressure guide pipes and static-pressure guide pipes respectively, and when the pitot flow meter is assembled, the full-pressure interfaces and the static-pressure interfaces of the corresponding full-pressure guide pipes and static-pressure guide pipes are connected with the corresponding differential pressure transmitter respectively; when a group of differential pressure signals output by a certain full-pressure guide pipe and a corresponding static pressure guide pipe are transmitted to the flow integrating instrument through the corresponding differential pressure transmitter, and the difference value between the integrated flow value of the flow integrating instrument and the average value of all measurement results exceeds a certain range, the integrating instrument can output the average value of other measurement results, and still can obtain relatively accurate measurement results.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Figure 1 is the main sectional structure schematic diagram of the pressure head of the Pitotbar flow sensor of the utility model.
Fig. 2 is a schematic left side view of fig. 1.
Fig. 3 is a schematic right view of fig. 1.
Fig. 4 is a schematic bottom view of fig. 1.
Detailed Description
Referring to fig. 1-4, the utility model discloses a pitot flow sensor pressure head of getting has the cylindricality and gets pressure head body 1, gets the cylindricality that pressure head body 1's upper portion was formed with the diameter and reduces and connects 2, gets to set up in pressure head body 1 and is located the full pressure passageway 3 and the static pressure passageway 4 of getting the relative both sides of pressure head body axis 100, and the axis of full pressure passageway 3 and static pressure passageway 4 all parallels with the axis 100 of getting the pressure head body, and full pressure passageway 3 and static pressure passageway 4 have and are located full pressure access 5 and static pressure access 6 of cylindricality joint 2 upper end, full pressure passageway 3 and static pressure passageway 4 be a plurality ofly, these full pressure passageway 3 and static pressure passageway 4 are seted up at interval get the relative both sides of pressure head body axis 100. The axes of the full-pressure channels 3 and the static-pressure channels 4 are parallel to the axis 100 of the pressure taking head body and are positioned in the same plane, each full-pressure channel 3 and the static-pressure channel 4 are provided with a full-pressure channel opening 5 and a static-pressure channel opening 6 at the upper end of the cylindrical joint 2, a channel wall 7 is arranged between the adjacent full-pressure channels 3 and the static-pressure channels 4, a full-pressure channel wall 31 is arranged between the adjacent full-pressure channels 3, and a static-pressure channel wall 41 is arranged between the adjacent static-pressure channels 4. One side of the pressure taking head body axis 100 is provided with a plurality of full pressure inclined planes 8 which are parallel to each other from top to bottom, the full pressure inclined planes 8 are respectively intersected with the full pressure channel 3 to form a plurality of full pressure holes 32, a full pressure channel wall plane 33 which is vertical to a plane determined by the axis of the full pressure channel 3 is formed on a full pressure channel wall 31 between every two adjacent full pressure holes 32, a full pressure channel wall intersecting line 34 on the full pressure channel wall 31 between the full pressure channel wall plane 33 and the adjacent full pressure inclined plane 8 is parallel to each other and is parallel to the end surface of the cylindrical pressure taking head body 1, the other side opposite to the pressure taking head body axis 100 is provided with a plurality of static pressure inclined planes 9 which are parallel to each other from top to bottom, the static pressure inclined planes 9 are respectively intersected with the static pressure channel 4 to form a plurality of static pressure holes 42, a static pressure channel wall plane 43 which is vertical to the plane determined by the axis of the static pressure channel 4 is formed on a static pressure channel wall 41, the static pressure channel wall intersection lines 44 on the static pressure channel walls 41 between the static pressure channel wall flat surfaces 43 and the adjacent static pressure inclined surfaces 9 are parallel to each other and to the end surface of the cylindrical pressure tapping head body 1. The channel wall intersection lines 71, 72 formed by the intersection of the full-pressure inclined surface 8 and the static-pressure inclined surface 9 which are positioned at the lowest position with the channel wall 7 are parallel to each other and are vertical to the plane determined by the axes of the full-pressure channel 3 or the static-pressure channel 4.
The differential pressure between each positive pressure channel and the negative pressure channel is different in proportion to the pipeline due to the fact that the insertion depth of the inserted pipeline is different in proportion to the pipeline, when a medium flows, the differential pressure between each positive pressure channel and the negative pressure channel has a certain proportion due to the fact that the central flow velocity of the pipeline is different from the edge flow velocity of the pipeline, when scaling in the pipeline is the reduction of the inner diameter of the pipeline, the proportion of the sensor inserted into the pipeline changes, the differential pressure between each positive pressure channel and the negative pressure channel has a certain proportion to change, and the integrator calculates scaling of the pipeline by recording the relation between the proportional relation of the differential pressure and the scaling condition of. Thereby calculating the flow area of the medium and automatically correcting.
Claims (1)
1. The utility model provides a pressure head is got to pitot bar flow sensor, the pressure head body (1) is got to the cylindricality has, the upper portion of getting the pressure head body is formed with the cylindricality that the diameter reduces and connects (2), get and set up in the pressure head body and be located full pressure passageway (3) and static pressure passageway (4) of getting pressure head body axis (100) relative both sides, the axis of full pressure passageway and static pressure passageway all parallels with the axis of getting the pressure head body, full pressure passageway and static pressure passageway have and are located full pressure passway (5) and static pressure passway (6) that the cylindricality connects the upper end, its characterized in that: the pressure tapping head comprises a pressure tapping head body, and is characterized in that a plurality of full-pressure channels (3) and static-pressure channels (4) are arranged on two opposite sides of the axis (100) of the pressure tapping head body at intervals, channel walls (7) are arranged between every two adjacent full-pressure channels and static-pressure channels, full-pressure channel walls (31) are arranged between every two adjacent full-pressure channels, and static-pressure channel walls (41) are arranged between every two adjacent static-pressure channels; one side of the pressure taking head body axis (100) is provided with a plurality of full-pressure inclined planes (8) which are parallel to each other from top to bottom, the full-pressure inclined planes are respectively intersected with the full-pressure channel (3) to form a plurality of full-pressure holes (32), a full-pressure channel wall plane (33) which is vertical to a plane determined by the axis of the full-pressure channel is formed on a full-pressure channel wall (31) between every two adjacent full-pressure holes (32), the other side, opposite to the pressure taking head body axis (100), is provided with a plurality of static pressure inclined planes (9) which are parallel to each other from top to bottom, the static pressure inclined planes are respectively intersected with the static pressure channel (4) to form a plurality of static pressure holes (42), and a static pressure channel wall plane (43) which is vertical to the plane determined by the axis of the static pressure channel is formed on a static pressure channel wall (41) between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921961494.4U CN210400484U (en) | 2019-11-14 | 2019-11-14 | Pressure taking head of Pitotbar flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921961494.4U CN210400484U (en) | 2019-11-14 | 2019-11-14 | Pressure taking head of Pitotbar flow sensor |
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| Publication Number | Publication Date |
|---|---|
| CN210400484U true CN210400484U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921961494.4U Active CN210400484U (en) | 2019-11-14 | 2019-11-14 | Pressure taking head of Pitotbar flow sensor |
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| CN (1) | CN210400484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686736A (en) * | 2019-11-14 | 2020-01-14 | 上海权宥环保科技有限公司 | Pressure taking head of Pitotbar flow sensor |
-
2019
- 2019-11-14 CN CN201921961494.4U patent/CN210400484U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686736A (en) * | 2019-11-14 | 2020-01-14 | 上海权宥环保科技有限公司 | Pressure taking head of Pitotbar flow sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210114 Address after: 112600 No. 265, Ling Dong Street, Tieling Economic Development Zone, Tieling, Liaoning Patentee after: Liaoning pitotbar Polytron Technologies Inc. Address before: 201600 building 24, 506 South Ring Road, Songjiang District, Shanghai Patentee before: SHANGHAI QUANYOU ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 265 Lingdong Street, Tieling Economic Development Zone, Tieling City, Liaoning Province, 112366 Patentee after: Liaoning Bitobar Technology Co.,Ltd. Address before: 112600 No. 265, Ling Dong Street, Tieling Economic Development Zone, Tieling, Liaoning Patentee before: Liaoning pitotbar Polytron Technologies Inc. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Bitoba flow sensor pressure tap Effective date of registration: 20231228 Granted publication date: 20200424 Pledgee: Tieling Branch of Shengjing Bank Co.,Ltd. Pledgor: Liaoning Bitobar Technology Co.,Ltd. Registration number: Y2023210000358 |