CN109540229A - Phase unsteady flow saturated steam flowing meter - Google Patents
Phase unsteady flow saturated steam flowing meter Download PDFInfo
- Publication number
- CN109540229A CN109540229A CN201811522428.7A CN201811522428A CN109540229A CN 109540229 A CN109540229 A CN 109540229A CN 201811522428 A CN201811522428 A CN 201811522428A CN 109540229 A CN109540229 A CN 109540229A
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- China
- Prior art keywords
- pressure
- hole
- static
- water storage
- total pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229920006395 saturated elastomer Polymers 0.000 title claims abstract description 23
- 230000003068 static effect Effects 0.000 claims abstract description 113
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 3
- 230000005514 two-phase flow Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 238000002788 crimping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011555 saturated liquid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/37—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of communicating tubes or reservoirs with movable fluid levels, e.g. by U-tubes
Abstract
The invention discloses a kind of phase unsteady flow saturated steam flowing meters, the bi toba flow sensor in the short round tube of the level is inserted into including horizontal short round tube and by horizontal short round tube roof, bi toba flow sensor is connected with the first differential pressure transmitter, further includes loaded on the level gauging device for being used to measure liquid level in horizontal short round tube on horizontal short round tube；Bi toba flow sensor includes pressure head and complete, the static pressure connecting pipe that are connected, there is complete, static pressure hole in the opposite left and right side of pressure head lower section, there is complete, static pressure channel in pressure head, pressure head left and right side offers complete, static balance hole, and complete, static balance hole is connected at the top of channel with complete, static pressure respectively；It further include having to extend downward into complete, static pressure water storage hole complete, below static balance hole by pressure overhead, complete, static pressure connecting pipe is extended to respectively in complete, static pressure water storage hole.The flow of saturated vapor in pipeline can be accurately measured using the present invention.
Description
Technical field
The present invention relates to a kind of bi toba flow meters, concretely relate to a kind of phase unsteady flow saturated steam flowing meter.
Background technique
In the prior art, gas-liquid two-phase flow Pitotbar flow meter is disclosed in Chinese patent bulletin 203011438 U of CN,
Its structure includes horizontal short round tube and bi toba flow sensor, and circular hole is provided on the bottom wall of the short round tube of level, described to finish
Thus circular hole is extend into short round tube support bar flow sensor, and bi toba flow sensor is connected with the first differential pressure transmitter, also wraps
The level gauging device of liquid level in the measurement short round tube of level is included, which has liquid stream connecting pipe
Gentle conductance pressure pipe, one end of the gentle conductance pressure pipe of liquid stream connecting pipe are connected with the second differential pressure transmitter, the short round tube of level
Roof is equipped with airflow hole, and the bottom wall of horizontal short round tube is equipped with liquid flow hole, the other end and the liquid of the liquid stream connecting pipe
Discharge orifice is connected, and the other end of the air-flow connecting pipe is connected with the airflow hole.
Bi toba flow sensor used in the above-mentioned prior art is conventional general bi toba flow sensor, knot
Structure mainly include pressure head with the connecting pipe that is connected, connecting pipe includes total pressure connecting pipe and static pressure connecting pipe, total pressure connecting pipe and
The top of static pressure connecting pipe is connected with transmitter connector, and the upper section of pressure head is cylindricality connector, the left and right side that lower section is opposite is formed
There is symmetrical left and right inclined-plane, symmetrically offer full pressure hole and static pressure hole on the inclined-plane of left and right, has in pressure head and full pressure hole and quiet
The axis in pressure hole the total pressure channel and static pressure channel that are connected, total pressure channel and static pressure channel is parallel with the axis of pressure head and position
It is set in outside connecting pipe and is connected with transmitter connector bottom in being equipped in same plane, on the cylindricality connector of pressure head upper section
Installation sleeve.
Above-mentioned gas-liquid two-phase flow Pitotbar flow meter in the prior art, due to being additionally arranged level gauging device in pipeline,
Second differential pressure transmitter obtains table in horizontal short round tube liquid level according to the pressure signal of the gentle conductance pressure pipe transmission of liquid stream connecting pipe
The pressure difference in face and horizontal short round tube liquid level minimum point, so as to calculate the actual height of horizontal short round tube liquid level, further according to
The flow rate of liquid that bi toba flow sensor and the first differential pressure transmitter obtain, can be with the horizontal short round intraluminal fluid of accurately measure
The flow of body.
Above-mentioned gas-liquid two-phase flow Pitotbar flow meter in the prior art is to measure the not full packages liquid that gas is mixed in pipeline
The fluid flow of body.For conveying the pipeline of saturated vapor, it is to have saturated vapor again to have a small amount of saturated liquid in pipeline, works as survey
In buret road when the flow of saturated vapor, the pressure head of bi toba flow sensor is placed in saturated vapor, since saturation is steamed
Vapour has certain pressure, can make silicone oil part spilling drippage complete, in static pressure connecting pipe in bi toba flow sensor, make to pass
Complete, the static pressure signal sent generates error, the final measurement accuracy for influencing saturated vapor flow.
Summary of the invention
The technical problem to be solved in the present invention is to provide one kind can accurately measure satisfying in conveying saturated vapor pipeline
With the phase unsteady flow saturated steam flowing meter of steam flow.
In order to solve the above technical problems, phase unsteady flow saturated steam flowing meter of the invention, including horizontal short round tube and by water
The bi toba flow sensor that short round tube roof is inserted into the short round tube of the level is put down, it is poor that bi toba flow sensor is connected with first
Pressure transmitter further includes loaded on the level gauging device for being used to measure liquid level in horizontal short round tube on horizontal short round tube；Institute
The bi toba flow sensor stated include pressure head with the connecting pipe that is connected, connecting pipe includes total pressure connecting pipe and static pressure pilot
Pipe, the top of total pressure connecting pipe and static pressure connecting pipe are connected with transmitter connector, transmitter connector have transmitter total pressure interface and
Transmitter negative port, the bi toba flow sensor on its transmitter connector transmitter total pressure interface and transmitter it is negative
Crimping mouth is connected with first differential pressure transmitter, and the upper section of the pressure head is the opposite left and right side of cylindricality connector, lower section
It is formed with symmetrical left and right inclined-plane, full pressure hole and static pressure hole is symmetrically offered on the inclined-plane of left and right, is had in pressure head and full pressure hole
The axis in the total pressure channel and static pressure channel being connected with static pressure hole, total pressure channel and static pressure channel is parallel with the axis of pressure head
And be in the same plane, on the cylindricality connector of the pressure head upper section equipped be set in outside connecting pipe and with transmitter connector
The connected installation sleeve in bottom, pressure head left and right side symmetrically offer axis in same straight line and axis with pressure head
Perpendicular total pressure balance hole and static balance hole, total pressure balance hole and static balance hole respectively with the total pressure channel and quiet
It is connected at the top of pressure passageway；It further include having by extending downward into total pressure balance hole and static pressure at the top of pressure head upper section cylindricality connector
Total pressure water storage hole and static pressure water storage hole below balance hole, total pressure water storage hole and static pressure water storage hole are placed in front of taking ram axis
The axis in two sides afterwards, total pressure water storage hole and static pressure water storage hole is parallel with the axis of pressure head and is in the same plane, described complete
The top in pressure passageway and static pressure channel pass through respectively total pressure flow-guiding channel and static pressure flow-guiding channel and the total pressure water storage hole and
Static pressure water storage hole is connected, the axis of total pressure flow-guiding channel and static pressure flow-guiding channel be parallel to each other and with total pressure balance hole and static pressure
The axis of balance hole is in the same plane, and the total pressure connecting pipe and static pressure connecting pipe extend to total pressure water storage hole and static pressure respectively
In water storage hole, and the bottom of total pressure connecting pipe and static pressure connecting pipe extends to the lower section of total pressure balance hole and static balance hole, total pressure
There is gap between the bottom and total pressure water storage hole of connecting pipe and static pressure connecting pipe and the bottom in static pressure water storage hole；It is stored up positioned at total pressure
Being welded respectively at the aperture of water hole and static pressure water storage hole upper end has short tube, and the total pressure connecting pipe and static pressure connecting pipe seal respectively
Short tube at total pressure water storage hole and static pressure water storage hole upper end aperture extends in total pressure water storage hole and static pressure water storage hole.
In the use of the present invention, needing for horizontal short round tube to connect with tested pipeline.Phase unsteady flow saturated vapor of the invention
Flowmeter can measure the actual height of horizontal short round tube liquid level, and then it can be concluded that water according to level gauging device in pipeline
The actual height for putting down saturated vapor in short round tube, the saturation obtained further according to bi toba flow sensor and the first differential pressure transmitter
Steam flow rate, so as to measure the flow of saturated vapor in horizontal short round tube.Bi toba flow sensor in the present invention,
First high-temperature resisting liquid will be injected in total pressure water storage hole and static pressure water storage hole when use, inject liquid height and total pressure balance hole and
The height in static balance hole is consistent, since the total pressure connecting pipe and static pressure connecting pipe extend to total pressure water storage hole and static pressure respectively
In water storage hole, and the bottom of total pressure connecting pipe and static pressure connecting pipe extends to the lower section of total pressure balance hole and static balance hole, therefore
Saturated vapor in pipeline will not directly contact the bottom of total pressure connecting pipe and static pressure connecting pipe, in complete, static pressure connecting pipe
Silicone oil is not in spilling drip phenomenon, and the complete of transmission, static pressure signal are relatively accurate, while total pressure balance hole and full pressure hole can
Total pressure signal is transmitted, static balance hole and static pressure hole can transmit static pressure signal, and it further ensures complete, static pressure signal standards
Exactness, and then the flow velocity of saturated vapor in pipeline can be accurately measured, accurately measure the flow of saturated vapor in pipeline.
Detailed description of the invention
The present invention is described in further detail with reference to the accompanying drawing.
Fig. 1 is the schematic view of the front view of phase unsteady flow saturated steam flowing meter of the present invention.
Fig. 2 is the schematic cross-sectional view of the line A-A along Fig. 1.
Fig. 3 is the schematic cross-sectional view of the line B-B along Fig. 1, and the structure of the first differential pressure transmitter is eliminated in figure.
Fig. 4 is the main cross section structure diagram of bi toba flow sensor in phase unsteady flow saturated steam flowing meter of the present invention.
Fig. 5 is the schematic side view of Fig. 4.
Fig. 6 is the schematic cross-sectional view of the line C-C along Fig. 4.
Specific embodiment
Referring to Fig. 1-Fig. 6, referring first to Fig. 1-Fig. 3, phase unsteady flow saturated steam flowing meter of the invention, including it is horizontal short
Round tube 1 and bi toba flow sensor 2 are provided with circular hole 3, the bi toba flow sensing on the roof of the short round tube 1 of level
Thus circular hole is extend into short round tube device 2, and bi toba flow sensor 2 is connected with the first differential pressure transmitter 4, further includes a measurement
The level gauging device 5 of liquid level in the short round tube 1 of level, the level gauging device 5 have liquid stream connecting pipe 6 and air-flow
Connecting pipe 7, one end of the gentle conductance pressure pipe 7 of liquid stream connecting pipe 6 are connected with the second differential pressure transmitter 8, the top of the short round tube 1 of level
Wall is equipped with airflow hole 9, and the bottom wall of horizontal short round tube 1 is equipped with liquid flow hole 10, the other end of the liquid stream connecting pipe 6 with it is described
Liquid flow hole 10 is connected, and the other end of the air-flow connecting pipe 7 is connected with the airflow hole 9.Referring back to Fig. 4-Fig. 6, institute
The bi toba flow sensor 2 stated includes pressure head 100 and the connecting pipe 200 being connected, and connecting pipe 200 includes total pressure connecting pipe
210 and static pressure connecting pipe 220, the top of total pressure connecting pipe 210 and static pressure connecting pipe 220 is connected with transmitter connector 300, transmitter
Connector 300 has transmitter total pressure interface 310 and transmitter negative port 320, and the bi toba flow sensor 2 is with its pick-up
Transmitter total pressure interface 310 and transmitter negative port 320 on device connector 300 are connected with first differential pressure transmitter 4, institute
It states the upper section of pressure head 100 and is formed with symmetrical left and right inclined-plane 120,130 for the opposite left and right side of cylindricality connector 110, lower section,
Symmetrically offer full pressure hole 121 and static pressure hole 131 on left and right inclined-plane 120,130, have in pressure head 100 with full pressure hole 121 and
The axis in the total pressure channel 122 and static pressure channel 132 that static pressure hole 131 is connected, total pressure channel 122 and static pressure channel 132 with take
The axis of pressure head 100 is parallel and is in the same plane, and is equipped with and is set on the cylindricality connector 110 of 100 upper section of pressure head
The installation sleeve 140 connecting pipe 200 outside and be connected with 300 bottom of transmitter connector, 100 left and right side of pressure head are symmetrical
Offer axis same straight line and with the total pressure balance hole 123 of the axis perpendicular of pressure head and static balance hole 133, total pressure
Balance hole 123 and static balance hole 133 are connected with the top in the total pressure channel 122 and static pressure channel 132 respectively；Also wrap
It has included by extending downward into 133 lower section of total pressure balance hole 123 and static balance hole at the top of 100 upper section cylindricality connector 110 of pressure head
Total pressure water storage hole 124 and static pressure water storage hole 134, total pressure water storage hole 124 and static pressure water storage hole 134 are placed in and take ram axis
The axis in front and rear sides, total pressure water storage hole 124 and static pressure water storage hole 134 is parallel with the axis of pressure head 100 and is located at same flat
In face, the top in the total pressure channel 122 and static pressure channel 132 passes through total pressure flow-guiding channel 125 and static pressure flow-guiding channel respectively
135 are connected with the total pressure water storage hole 124 and static pressure water storage hole 134, total pressure flow-guiding channel 125 and static pressure flow-guiding channel
135 axis is parallel to each other and is in the same plane with the axis of total pressure balance hole 123 and static balance hole 133, described complete
Pressure connecting pipe 210 and static pressure connecting pipe 220 are extended to respectively in total pressure water storage hole 124 and static pressure water storage hole 134, and total pressure connecting pipe
210 and the bottom of static pressure connecting pipe 220 extend to the lower section of total pressure balance hole 123 and static balance hole 133, total pressure connecting pipe 210
There is gap 150 between the bottom and total pressure water storage hole 124 and the bottom in static pressure water storage hole 134 of static pressure connecting pipe 220；It is located at
Being welded respectively at the aperture of 134 upper end of total pressure water storage hole 124 and static pressure water storage hole has short tube 160,210 He of total pressure connecting pipe
Short tube 160 of the static pressure connecting pipe 220 respectively at 134 upper end aperture of hermetically passing total pressure water storage hole 124 and static pressure water storage hole extends to
In total pressure water storage hole 124 and static pressure water storage hole 134.
Claims (1)
1. a kind of phase unsteady flow saturated steam flowing meter, including horizontal short round tube (1) and the water is inserted by horizontal short round tube roof
The bi toba flow sensor (2) in short round tube is put down, bi toba flow sensor (2) is connected with the first differential pressure transmitter (4), also wraps
It includes loaded on the level gauging device (5) for being used to measure the interior liquid level of horizontal short round tube (1) on horizontal short round tube；The Pitot
Bar flow sensor (2) include pressure head (100) with the connecting pipe (200) that is connected, connecting pipe (200) includes total pressure connecting pipe
(210) and static pressure connecting pipe (220), the top of total pressure connecting pipe (210) and static pressure connecting pipe (220) is connected with transmitter connector
(300), transmitter connector (300) has transmitter total pressure interface (310) and transmitter negative port (320), the Pitot bar
Flow sensor (2) is with the transmitter total pressure interface (310) and transmitter negative port (320) on its transmitter connector (300)
It is connected with first differential pressure transmitter (4), the left side that the upper section of the pressure head (100) is cylindricality connector (110), lower section is opposite
Right side is formed with symmetrical left and right inclined-plane (120,130), and left and right inclined-plane symmetrically offers full pressure hole (121) on (120,130)
With static pressure hole (131), pressure head (100) is interior to have the total pressure channel being connected with full pressure hole (121) and static pressure hole (131)
(122) and static pressure channel (132), the axis of total pressure channel (122) and static pressure channel (132) and the axis of pressure head (100) are flat
It goes and is in the same plane, be equipped on the cylindricality connector (110) of pressure head (100) upper section and be set in connecting pipe (200)
Installation sleeve (140) that is external and being connected with transmitter connector (300) bottom, it is characterised in that: pressure head (100) left and right
Side symmetrically offer axis same straight line and with the total pressure balance hole (123) and static balance of the axis perpendicular of pressure head
Hole (133), total pressure balance hole (123) and static balance hole (133) respectively with the total pressure channel (122) and static pressure channel
(132) it is connected at the top of；It further include having to be put down by extending downward into total pressure at the top of pressure head (100) upper section cylindricality connector (110)
Total pressure water storage hole (124) and static pressure water storage hole (134) below weighing apparatus hole (123) and static balance hole (133), total pressure water storage hole
(124) it is placed in static pressure water storage hole (134) and takes the front and rear sides of ram axis, total pressure water storage hole (124) and static pressure water storage hole
(134) axis is parallel with the axis of pressure head (100) and is in the same plane, and the total pressure channel (122) and static pressure are logical
The top in road (132) passes through total pressure flow-guiding channel (125) and static pressure flow-guiding channel (135) and the total pressure water storage hole respectively
(124) it is connected with static pressure water storage hole (134), the axis of total pressure flow-guiding channel (125) and static pressure flow-guiding channel (135) is mutually flat
It goes and is in the same plane with the axis of total pressure balance hole (123) and static balance hole (133), the total pressure connecting pipe
(210) it is extended in total pressure water storage hole (124) and static pressure water storage hole (134) respectively with static pressure connecting pipe (220), and total pressure connecting pipe
(210) and the bottom of static pressure connecting pipe (220) extends to the lower section of total pressure balance hole (123) and static balance hole (133), and total pressure is led
Between pressure pipe (210) and the bottom and total pressure water storage hole (124) and the bottom in static pressure water storage hole (134) of static pressure connecting pipe (220)
With gap (150)；Being welded respectively at the aperture of total pressure water storage hole (124) and static pressure water storage hole (134) upper end has short tube
(160), the total pressure connecting pipe (210) and static pressure connecting pipe (220) hermetically passing total pressure water storage hole (124) and static pressure storage respectively
Short tube (160) at water hole (134) upper end aperture extends in total pressure water storage hole (124) and static pressure water storage hole (134).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811522428.7A CN109540229B (en) | 2018-12-13 | 2018-12-13 | Phase change flow saturated steam flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811522428.7A CN109540229B (en) | 2018-12-13 | 2018-12-13 | Phase change flow saturated steam flowmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109540229A true CN109540229A (en) | 2019-03-29 |
| CN109540229B CN109540229B (en) | 2020-04-03 |
Family
ID=65854712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811522428.7A Active CN109540229B (en) | 2018-12-13 | 2018-12-13 | Phase change flow saturated steam flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109540229B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672166A (en) * | 2019-11-14 | 2020-01-10 | 上海权宥环保科技有限公司 | Multi-point measurement Pitotbar flowmeter |
| CN112302597A (en) * | 2020-11-04 | 2021-02-02 | 海南毕托巴科技研究院有限公司 | Wet steam metering device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5481925A (en) * | 1994-09-09 | 1996-01-09 | Environmental Technologies, Inc. | Low turbulence airflow sensor |
| CN104101390A (en) * | 2014-08-07 | 2014-10-15 | 辽宁毕托巴科技有限公司 | Flow measuring device for measuring sewage in non-full pipe |
| CN204043727U (en) * | 2014-09-18 | 2014-12-24 | 铁岭云开科技有限公司 | A kind of pitot tube block-proof type flow sensor |
| CN204301915U (en) * | 2014-11-26 | 2015-04-29 | 扬州江天流量仪表有限公司 | With the T-shaped pressure drag differential pressure pick-up of steam vent |
| CN204439142U (en) * | 2015-03-18 | 2015-07-01 | 内蒙古天庆工程机械设备有限公司 | Low flow velocity, high precision pitot tube differential pressure flow sensor pressure head |
-
2018
- 2018-12-13 CN CN201811522428.7A patent/CN109540229B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5481925A (en) * | 1994-09-09 | 1996-01-09 | Environmental Technologies, Inc. | Low turbulence airflow sensor |
| CN104101390A (en) * | 2014-08-07 | 2014-10-15 | 辽宁毕托巴科技有限公司 | Flow measuring device for measuring sewage in non-full pipe |
| CN204043727U (en) * | 2014-09-18 | 2014-12-24 | 铁岭云开科技有限公司 | A kind of pitot tube block-proof type flow sensor |
| CN204301915U (en) * | 2014-11-26 | 2015-04-29 | 扬州江天流量仪表有限公司 | With the T-shaped pressure drag differential pressure pick-up of steam vent |
| CN204439142U (en) * | 2015-03-18 | 2015-07-01 | 内蒙古天庆工程机械设备有限公司 | Low flow velocity, high precision pitot tube differential pressure flow sensor pressure head |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672166A (en) * | 2019-11-14 | 2020-01-10 | 上海权宥环保科技有限公司 | Multi-point measurement Pitotbar flowmeter |
| CN112302597A (en) * | 2020-11-04 | 2021-02-02 | 海南毕托巴科技研究院有限公司 | Wet steam metering device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109540229B (en) | 2020-04-03 |
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Effective date of registration: 20210108 Address after: 112600 No. 265, Ling Dong Street, Tieling Economic Development Zone, Tieling, Liaoning Patentee after: Liaoning pitotbar Polytron Technologies Inc. Address before: 201500 room 3356, 65 lane, 65 Ring Road, Fengjing town, Jinshan District, Shanghai. Patentee before: SHANGHAI QUANYOU ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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| 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. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Phase change flow saturated steam flowmeter Effective date of registration: 20231228 Granted publication date: 20200403 Pledgee: Tieling Branch of Shengjing Bank Co.,Ltd. Pledgor: Liaoning Bitobar Technology Co.,Ltd. Registration number: Y2023210000358 |