CN213363898U - Water supply flow measuring device of heat supply network system - Google Patents
Water supply flow measuring device of heat supply network system Download PDFInfo
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- CN213363898U CN213363898U CN202022712331.1U CN202022712331U CN213363898U CN 213363898 U CN213363898 U CN 213363898U CN 202022712331 U CN202022712331 U CN 202022712331U CN 213363898 U CN213363898 U CN 213363898U
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Abstract
Water supply flow measuring device of heat supply network system. The water supply pipeline of the heat supply network system adopts a standard pore plate as a flow measurement system, the requirement on a pipe section is high when the single pore plate is adopted to measure the flow, too many field pipeline branches or the bent pipeline can not meet the requirement, and the forced installation only can cause measurement deviation to influence subsequent heat calculation. The utility model discloses a constitution includes: the standard orifice plate (1) is arranged at the position of a pipeline inlet, a post-separation pipeline and a pipeline outlet of a water supply pipeline of a heat supply network system, and a matched flow differential pressure transmitter (2) is arranged on the standard orifice plate. The utility model is used for measure the heat supply network system water supply flow.
Description
Technical Field
The utility model relates to a thermal power plant technical field, concretely relates to heat supply network system supplies water flow measuring device.
Background
The water supply pipeline of the heat supply network system adopts a standard pore plate as a flow measurement system, and flow pore plates are additionally arranged at the outlet of the water supply pipeline of the heat supply network and the outlet of the heater of the heat supply network respectively to measure the total water supply flow and the water supply flow of the external network. When measuring because multiple conditions such as sampling pipe jam lead to water supply flow measurement inaccurate, can't specifically learn the water supply flow deviation condition, can only be through the required water supply of operation personnel according to the artifical required water supply of heat supply in the operation experience judgement factory, come the side and predict the extranet water supply flow, influence the heat supply index and calculate. The single pore plate is adopted to measure the flow, the requirement on the pipe section is high when the single pore plate is installed, the requirement cannot be met when the field pipeline branches are too many or the pipeline is bent, the forced installation only causes measurement deviation, and the subsequent heat calculation is influenced.
Disclosure of Invention
The utility model aims at solving and adopting a plurality of standard orifice plate to take flow to join in marriage differential pressure transmitter and realize that single flow transmitter can't carry out data measurement's problem to pipeline branch road water supply flow, provide a heat supply network system water supply flow measuring device.
The above purpose is realized by the following technical scheme:
a kind of heat supply network system supplies water flow measuring device, its composition includes: the standard orifice plate is arranged at the positions of a pipeline inlet, a post-separation pipeline and a pipeline outlet of a water supply pipeline of a heat supply network system, and a matched flow differential pressure transmitter is arranged on the standard orifice plate.
The water supply flow measuring device of the heat supply network system is characterized in that the model of the standard orifice plate is LGBFK1.6-1100, and the model of the flow differential pressure transmitter is EJA 110A.
Has the advantages that:
the utility model relates to a heat supply network system water supply flow measuring device adopts a plurality of standard orifice plate collocation differential pressure transmitter to solve single flow transmitter and can't carry out data measurement's problem to pipeline branch road water supply flow, through install standard orifice plate and collocation differential pressure transmitter on heat supply trunk line entry and trunk line export respectively additional, pipeline entry flow is for supplying water total flow, pipeline export flow is for outer net water supply flow promptly, measuring error is little, moreover, the steam generator is simple in structure, wide in application scope, effectively improve pipeline branch road water supply flow data measurement's precision.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention;
in the figure: 1. standard orifice plate, 2, flow differential pressure transmitter.
The specific implementation mode is as follows:
example 1:
a kind of heat supply network system supplies water flow measuring device, its composition includes: the standard orifice plate 1 is arranged at the positions of a pipeline inlet, a post-separation pipeline and a pipeline outlet of a water supply pipeline of a heat supply network system, and a matched flow differential pressure transmitter 2 is arranged on the standard orifice plate.
Example 2:
according to the flow measuring device for water supply of the heat supply network system in the embodiment 1, the model of the standard orifice plate is LGBFK1.6-1100, the maximum flow is 6000000Kg/h, the minimum flow is 2000000Kg/h, the upper limit of differential pressure is 40kpa, the model of the flow differential pressure transmitter is EJA110A, and the measuring range is 0-40 kpa;
the measuring method comprises the following steps: the pipeline is provided with a plurality of branches at a certain section, long straight pipelines without branches are not arranged before and after the branches, and a standard orifice plate and a matched differential pressure transmitter are arranged at the inlet of the pipeline to measure the total flow of the inlet of the pipeline; after the last branch of the pipeline branch section, a standard orifice plate and a matched differential pressure transmitter are installed as the flow of the pipeline after the branch according to the installation requirement of the standard orifice plate on the straight pipeline section; a standard orifice plate and a differential pressure transmitter are arranged at the outlet of the pipeline to measure the total flow of the outlet of the pipeline, and the total flow of each branch can be calculated by using a calculation formula, wherein the specific calculation formula is as follows:
total flow of each branch = total flow of pipe inlet-flow of pipe after branching
The pipeline outlet total flow value should be equal to the pipeline flow after the branch, the two are mutually corrected, the situation that the measurement deviation cannot be found in time due to the blockage of the sampling tube and other reasons is prevented, the accuracy of the metering data is ensured, and the pipeline outlet total flow can also be used as flow metering equipment for calculating the flow cost.
Claims (2)
1. A kind of heat supply network system supplies water flow measuring device, its composition includes: the standard orifice plate is characterized in that: the standard orifice plate is arranged at the position of a pipeline inlet, a post-separation pipeline and a pipeline outlet of a water supply pipeline of a heat supply network system, and a matched flow differential pressure transmitter is arranged on the standard orifice plate.
2. The heat supply network system supply water flow measuring device of claim 1, characterized in that: the standard orifice plate is LGBFK1.6-1100, and the flow differential pressure transmitter is EJA 110A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022712331.1U CN213363898U (en) | 2020-11-22 | 2020-11-22 | Water supply flow measuring device of heat supply network system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022712331.1U CN213363898U (en) | 2020-11-22 | 2020-11-22 | Water supply flow measuring device of heat supply network system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213363898U true CN213363898U (en) | 2021-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022712331.1U Active CN213363898U (en) | 2020-11-22 | 2020-11-22 | Water supply flow measuring device of heat supply network system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213363898U (en) |
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2020
- 2020-11-22 CN CN202022712331.1U patent/CN213363898U/en active Active
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