CN216815617U - Novel reaction sedimentation tank raw water flow meter improves mounting structure - Google Patents
Novel reaction sedimentation tank raw water flow meter improves mounting structure Download PDFInfo
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- CN216815617U CN216815617U CN202220249059.4U CN202220249059U CN216815617U CN 216815617 U CN216815617 U CN 216815617U CN 202220249059 U CN202220249059 U CN 202220249059U CN 216815617 U CN216815617 U CN 216815617U
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Abstract
The utility model relates to the technical field of differential pressure measurement, in particular to a novel improved mounting structure of a raw water flowmeter of a reaction sedimentation tank, which comprises a differential pressure transmitter and a detection pipeline, wherein one end of the differential pressure transmitter is directly connected with the detection pipeline through a first connecting pipeline, a pressure chamber is fixedly connected with the differential pressure transmitter, a pressure leading pipe is fixedly connected with the pressure chamber, the other end of the detection pipeline is fixedly connected with a connecting section pipeline through a connecting flange, the top of the connecting section pipeline is fixedly connected with a second connecting pipeline, one end of the differential pressure transmitter is directly connected with the detection pipeline, the other end of the differential pressure transmitter is used for leading pressure through a short-length pressure leading pipe, a special heat tracing pipeline and a special heat insulation box are not needed to be arranged, meanwhile, the material of the pressure leading pipe is greatly saved, the length of the pressure leading pipe of the flowmeter is changed through transformation, the pipeline material is reduced, and the maintenance workload is also reduced, more importantly, the measurement accuracy can be improved.
Description
Technical Field
The utility model relates to an improved mounting structure of a novel reaction sedimentation tank raw water flowmeter, belonging to the technical field of differential pressure measurement.
Background
Most of field liquid flow measurement adopts a differential pressure measurement method, flow inaccuracy or flow jump often occurs during operation, a common processing method of thermal maintenance personnel is to check a transmitter, eliminate air in a transmitter pipeline or disassemble the transmitter for verification, and rarely pay attention to the installation problem of a field meter. The problem is not solved from the root, the metering is inaccurate, and then the judgment error of operators is caused, the dosing amount is too much, and the benefit is influenced.
In order to solve the problems, the application provides a novel improved mounting structure of a raw water flow meter of a reaction sedimentation tank.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the technical problems in the prior art, and provides a novel improved mounting structure of a raw water flowmeter of a reaction sedimentation tank.
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a novel reaction sedimentation tank raw water flowmeter improves mounting structure, includes differential pressure transmitter, detection pipeline, differential pressure transmitter one end is through first connecting tube lug connection detection pipeline, fixedly connected with pressure chamber on the differential pressure transmitter, fixedly connected with draws and presses the pipe on the pressure chamber, the detection pipeline other end passes through flange fixedly connected with linkage segment pipeline, linkage segment pipeline top fixedly connected with second connecting tube, second connecting tube top fixed connection draws and presses the pipe.
As a further improvement of the utility model, the length of the pressure guiding pipe is set to be 1-2 meters.
As a further improvement of the utility model, the middle position of the pressure guiding pipe is connected with the detection pipeline through a binding belt.
As a further improvement of the utility model, the first connecting pipeline is in threaded connection with the detection pipeline, and a sealing raw material belt is arranged at the joint of the first connecting pipeline and the detection pipeline.
As a further improvement of the utility model, the second connecting pipeline is in threaded connection with the connecting section pipeline, and a sealing thread tape is arranged at the joint of the second connecting pipeline and the connecting section pipeline.
As a further improvement of the utility model, the outer side of the pressure guiding pipe is wound with a heat insulation layer which is made of heat insulation cotton.
The utility model has the beneficial effects that: the utility model provides a novel reaction sedimentation tank raw water flow meter improves mounting structure, adopts differential pressure transmitter one end lug connection detection pipeline, and the other end is drawn pressure through the shorter pressure tube of a length, need not to set up special heat tracing pipeline, insulation can, has practiced thrift the material of pressure tube simultaneously greatly, through reforming transform, has changed flowmeter pressure tube length, has both reduced the pipeline material, has reduced maintenance work load again, and more importantly can improve measurement accuracy nature.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.
FIG. 1 is a structural diagram of an improved installation structure of a novel raw water flow meter of a reaction sedimentation tank.
FIG. 2 is a view showing the structure of the installation of a raw water flow meter of a reaction sedimentation tank in the prior art.
Reference numbers in the figures: 1. a differential pressure transmitter; 2. a pressure chamber; 3. a pressure guiding pipe; 4. a second connecting pipe; 5. a first connecting pipe; 6. detecting a pipeline; 7. connecting section pipelines; 8. a connecting flange; 9. a heat tracing pipeline; 10. a negative pressure pipe; 11. an instrument cabinet; 12. a heat preservation box; 13. a heating device.
Detailed Description
The present invention will be further described with reference to the following detailed description, wherein the drawings are for illustrative purposes only and are not intended to be limiting, wherein certain elements may be omitted, enlarged or reduced in size, and are not intended to represent the actual dimensions of the product, so as to better illustrate the detailed description of the utility model.
In order to make the technical means, the original characteristics, the achieved objects and the functions of the present invention easy to understand, in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or the positional relationship based on the orientation or the positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed in a specific orientation and operation, and thus not be understood as limiting the present invention, and furthermore, the terms "first", "second" and "third" are only used for descriptive purposes and not to indicate or imply relative importance, and the present invention is further explained below with reference to the specific embodiments.
Examples
The requirement of traditional mounting means to the pressure pipe:
the traditional installation mode for measuring flow by using a differential pressure transmitter has the following requirements on the laying of a pressure guiding pipe:
the pressure-leading pipe is made of pressure-resistant and corrosion-resistant material according to the property and parameters of the fluid to be measured, and has an inner diameter of not less than 6mm and a length preferably within 16 m.
Secondly, the pressure guide pipe is horizontally laid with an inclination, and when the horizontal laying length of the pressure guide pipe exceeds 30m, the pressure guide pipe is inclined in sections.
And thirdly, in order to avoid the transmission distortion of static differential pressure signals, the positive and negative pressure pipes are close to each other as much as possible, the pressure pipe of the easily-condensed and easily-frozen medium needs to be heated by electric heat, steam or hot water, and the differential pressure flow transmitter transmits the static differential pressure generated at the upstream and the downstream of the throttling element to a measuring chamber of the differential pressure transmitter by using the pressure pipe and converts the static differential pressure into a standard signal difference (usually 4-20 mA) by using the transmitter. The transformer is generally installed in a local instrument cabinet (insulation box) on the ground or on a platform, and then an insulation heat tracing pipeline is laid.
As shown in fig. 2, in the installation structure of the raw water flow meter of the reaction sedimentation tank in the original structure, two pressure pipes are provided, namely a positive pressure pipe and a negative pressure pipe 10, wherein the positive pressure pipe and the negative pressure pipe 10 are led out from the detection pipeline 6 and then led into the instrument cabinet 11, the differential pressure transmitter is installed in the thermal insulation box 12, and meanwhile, a heating device 13 is further provided at the bottom of the thermal insulation box 12, in order to prevent the positive pressure pipe and the negative pressure pipe 10 from freezing in cold weather, a heat tracing pipeline 9 is further required to be provided above the detection pipeline 6, and the positive pressure pipe and the negative pressure pipe 10 are in contact with the heat tracing pipeline 9 for heat exchange.
The defect of the traditional long pressure guiding pipe mounting mode:
firstly, a pressure-leading pipeline is too long, installation materials are wasted, and for taking a differential pressure type flow measurement system as an example, the common installation at least needs 2 positive and negative pressure-leading stop valves, 2 packets, 2 positive three and negative secondary valves, 1 balance valve, 4 blow-down valves, 4 movable joints, 10-30 m long pressure-leading pipes, 6-7 elbows, 30m heat tracing pipelines, 1 contactor and 3-4 idle openings; if hot water is adopted for heat tracing, 2 hand valves are needed for heat tracing, 1 drain valve, 1 heat preservation cabinet, and a plurality of heat preservation cotton and heat preservation cloth are needed.
And the number of pressure guiding pipeline accessories is large, leakage points are increased, and the maintenance workload is increased.
And thirdly, the transmission of the differential pressure signal is delayed, and the longer the pressure transmission pipeline is, the more the elbows are, the slower the transmission speed of the differential pressure signal is.
The heat tracing energy consumption is large, and the heat tracing consumption is considerable due to the fact that the number of the transmitters in a power plant needs anti-freezing heat tracing.
Measurement error is generated due to uneven medium flow velocity.
The length of the pressure guiding pipe is irrelevant to the size of the transmitted differential pressure signal when the differential pressure transmitter measures the flow, the pressure guiding pipe only plays a role in transmitting static pressure, the pressure guiding pipe can be long or short, the pressure guiding pipe can be shortened as much as possible under the condition of permission of an installation environment, part of installation accessories are omitted, part of installation materials are saved, and the transmission speed of the differential pressure signal is accelerated.
As shown in fig. 1, a novel reaction sedimentation tank raw water flowmeter improves mounting structure, including differential pressure transmitter 1, detection pipeline 6, differential pressure transmitter 1 one end is through 5 lug connection detection pipeline 6 of first connecting tube, fixedly connected with pressure chamber 2 on the differential pressure transmitter 1, fixedly connected with draws and presses pipe 3 on the pressure chamber 2, the detection pipeline 6 other end passes through 8 fixedly connected with linkage segment pipelines 7 of flange, 7 top fixedly connected with second connecting tube 4 of linkage segment pipeline, 4 top fixedly connected with of second connecting tube draws and presses pipe 3.
In the present embodiment, the length of the pressure guiding pipe 3 is set to be 1-2 meters.
In the embodiment, the middle position of the pressure guide pipe 3 is connected with the detection pipeline 6 through a binding belt.
In this embodiment, the first connecting pipeline 5 is connected with the detecting pipeline 6 by a screw thread, and a sealing raw material belt is arranged at the joint of the first connecting pipeline 5 and the detecting pipeline 6.
In this embodiment, the second connecting pipe 4 is connected with the connecting section pipe 7 by a screw thread, and a sealing thread tape is arranged at the joint of the second connecting pipe 4 and the connecting section pipe 7.
In this embodiment, the outside winding of pressure pipe 3 is provided with the heat preservation, the heat preservation sets up to the heat preservation cotton.
Through the technical scheme, the utility model has the following beneficial effects:
after the pressure guiding pipe 3 is shortened, the measuring principle and the measuring precision are not influenced, a large amount of mounting materials are saved, the length of the improved pressure guiding pipe of the differential pressure transmitter is about 1-2 m, and the pressure guiding pipe is greatly saved compared with the traditional mounting mode.
The pressure guiding pipe 3 is short, the number of pressure guiding pipeline accessories is small, the length from a pressure taking hole to a gauge head is generally not more than 1-2 m, leakage points are reduced, and maintenance workload is reduced.
The usable pipeline radiant heat of the pressure differential transmitter that need to prevent frostbite blocks heat for the instrument, adopts shorter connecting tube 3 promptly, and connecting tube 3's both ends are nearer apart from the transport liquid that has certain temperature, can carry out better heat exchange, can not freeze to influence under the not extremely cold condition of weather and detect, need not lay special electric energy, steam or hot water heat tracing pipeline, practices thrift heat tracing mounting material and heat tracing energy, reduce cost.
The speed of accelerating the transmission of the differential pressure signal is improved, the improved pressure transmission pipeline is short, the number of elbows is small, and the transmission speed of the differential pressure signal is greatly improved compared with that of the original structure.
The working principle of the utility model is as follows: adopt 1 one end lug connection of differential pressure transmitter 6, the other end is carried out the induced pressure through a pressure tube 3 that length is shorter, need not to set up special heat tracing pipeline, insulation can, has practiced thrift the material of pressure tube 3 simultaneously greatly, through transforming, has changed flowmeter pressure tube 3 length, has both reduced the pipeline material, has reduced the maintenance work volume again, more importantly can improve measurement accuracy nature.
While there have been shown and described what are at present considered the preferred embodiments of the utility model, the fundamental principles and essential features of the utility model and advantages thereof, it will be understood by those skilled in the art that the utility model is not limited by the embodiments described above, which are included to illustrate the principles of the utility model, but that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (6)
1. The utility model provides a novel reaction sedimentation tank raw water flowmeter improves mounting structure, includes differential pressure transmitter (1), detection pipeline (6), its characterized in that: differential pressure transmitter (1) one end is through first connecting tube (5) lug connection detection pipeline (6), fixedly connected with pressure chamber (2) is gone up in differential pressure transmitter (1), fixedly connected with draws pressure pipe (3) on pressure chamber (2), detection pipeline (6) other end passes through flange (8) fixedly connected with linkage segment pipeline (7), linkage segment pipeline (7) top fixedly connected with second connecting tube (4), second connecting tube (4) top fixed connection draws pressure pipe (3).
2. The improved installation structure of the novel raw water flow meter of the reaction sedimentation tank as claimed in claim 1, wherein: the length of the pressure guiding pipe (3) is set to be 1-2 m.
3. The improved installation structure of the novel raw water flow meter of the reaction sedimentation tank as claimed in claim 1, wherein: the middle position of the pressure guiding pipe (3) is connected with a detection pipeline (6) through a binding belt.
4. The improved installation structure of the novel raw water flow meter of the reaction sedimentation tank as claimed in claim 1, wherein: threaded connection between first connecting tube (5) and detection pipeline (6), first connecting tube (5) and detection pipeline (6) junction are provided with sealed thread seal area.
5. The improved installation structure of the novel raw water flow meter of the reaction sedimentation tank as claimed in claim 1, wherein: and the second connecting pipeline (4) is in threaded connection with the connecting section pipeline (7), and a sealing raw material belt is arranged at the joint of the second connecting pipeline (4) and the connecting section pipeline (7).
6. The improved installation structure of the novel raw water flow meter of the reaction sedimentation tank as claimed in claim 1, wherein: the outer side of the pressure guiding pipe (3) is wound with a heat preservation layer which is made of heat preservation cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220249059.4U CN216815617U (en) | 2022-02-07 | 2022-02-07 | Novel reaction sedimentation tank raw water flow meter improves mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220249059.4U CN216815617U (en) | 2022-02-07 | 2022-02-07 | Novel reaction sedimentation tank raw water flow meter improves mounting structure |
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| CN216815617U true CN216815617U (en) | 2022-06-24 |
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| CN202220249059.4U Active CN216815617U (en) | 2022-02-07 | 2022-02-07 | Novel reaction sedimentation tank raw water flow meter improves mounting structure |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Improved installation structure of a new type raw water flowmeter for reaction sedimentation tank Effective date of registration: 20221116 Granted publication date: 20220624 Pledgee: Postal Savings Bank of China Limited Jinan Branch Pledgor: CHINA CENPOWER ENERGY CO.,LTD. Registration number: Y2022370000148 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |