CN204594524U - The anti-clogging protective device of differential pressure transmitter in measurement of gas flow system - Google Patents
The anti-clogging protective device of differential pressure transmitter in measurement of gas flow system Download PDFInfo
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- CN204594524U CN204594524U CN201520155482.8U CN201520155482U CN204594524U CN 204594524 U CN204594524 U CN 204594524U CN 201520155482 U CN201520155482 U CN 201520155482U CN 204594524 U CN204594524 U CN 204594524U
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- China
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- gas flow
- measurement
- differential pressure
- pressure transmitter
- protective device
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Abstract
The utility model belongs to the improvement to blast furnace gas Flow Measuring System; the particularly anti-clogging protective device of differential pressure transmitter in a kind of measurement of gas flow system; anti-clogging protective device; comprise by orifice plate; the measurement of gas flow system of positive and negative connecting pipe, three valve groups, differential pressure transmitter and flow rate calculation system composition, in the junction block that positive and negative connecting pipe is connected with three valve group valves, middle bench place is fixedly mounted with screen pack by obturator ring.Its structure is simple, good to the coal gas strainability containing impurity, can ensure that blast furnace gas Flow Measuring System carries out smoothly, can improve the accuracy of measurement, and easy for installation, long service life.
Description
Technical field
The utility model belongs to the improvement to blast furnace gas Flow Measuring System, particularly the anti-clogging protective device of differential pressure transmitter in a kind of measurement of gas flow system.
Background technology
Blast furnace gas is a kind of mixed gas, because this kind of gas contains impurity (as tar, dust, naphthalene crystal etc.), also known as making raw gas; Because the dust bonding in coal gas is extremely strong, the fouling produced, blocking are difficult to remove, and the impurity in coal gas produces the impact of two aspects to measurement of gas flow, and one is cause flow instrument measuring accuracy decline or measure unsuccessfully; Be the accuracy affecting coal gas density on the other hand, thus affect measuring accuracy.The impurity (as tar fog, naphthalene crystal, dust etc.) contained in coal gas all can be attached on pressure pipeline and differential pressure transmitter and cause measurement distortion, also directly can affect measurement result.
Utility model content
The purpose of this utility model is the anti-clogging protective device providing differential pressure transmitter in a kind of measurement of gas flow system; its structure is simple; good to the coal gas strainability containing impurity; can ensure that blast furnace gas Flow Measuring System carries out smoothly; the accuracy of measurement can be improved; and easy for installation, long service life.
The purpose of this utility model is achieved in that the anti-clogging protective device of differential pressure transmitter in a kind of measurement of gas flow system; comprise by orifice plate; the measurement of gas flow system of positive and negative connecting pipe, three valve groups, differential pressure transmitter and flow rate calculation system composition, in the junction block that positive and negative connecting pipe is connected with three valve group valves, middle bench place is fixedly mounted with screen pack by obturator ring.
Blast furnace gas Flow Measuring System composition forms standard volume flow measuring system by orifice plate, connecting pipe, three valve groups, differential pressure transmitter, flow accumulation system.Owing to measuring impurity (as tar fog, naphthalene crystal, dust etc.) strong containing a large amount of cohesiveness in coal gas, any instrument all cannot long-term work with this understanding, and the pressurized mouth diameter of present differential pressure transmitter only has 5-8mm, for ensureing the trouble-free operation of blast fumance and the accurate of measurement, so must install by transformation the device being easy to clean additional.Before three valve groups positive and negative connecting pipe internal thread and valve junction junction block in install screen pack additional, make the impurity coal gas contained by entering differential pressure transmitter again after filter screen filtration.Filtered before three valve groups by gas impurity by screen pack like this, the impurity blocking differential pressure transmitter that or else can contain because of coal gas, ensures the accuracy of blast furnace gas Flow Measuring System and pressure system trouble-free operation and measurement.
Implementation process:
1. processed filter screen voluntarily
Screen pack cut into and is subject to pressure pipe external diameter of a size, positive and negative connecting pipe internal thread and valve junction before being directly installed on three valve groups, middle bench place in junction block, and compressing screen pack by obturator ring.Directly filtered by screen pack, technique is simple, and good permeability, does not leak, easy for installation, efficiency is high, long service life.This protective device is easy to make, and cost is low.
2. before transmitter three valve group, install the practical device of screen pack additional, differential pressure transmitter gas impurity will be entered by screen pack to filter, the impurity blocking differential pressure transmitter that or else can contain because of coal gas, ensures the accuracy of blast furnace gas Flow Measuring System and pressure system trouble-free operation and measurement.
3. the practical device technique post-purge pressure pipeline work efficiency by installing screen pack additional improves about 10 times than classic method, and greatly reduces the labour intensity of workman.There is highly reliable, high precision, high-level efficiency, should not the features such as transmitter be damaged, and effectively avoid the generation of production safety hidden danger.
The utility model structure is simple, and good to the coal gas strainability containing impurity, filtration efficiency is high, achieves and ensures blast furnace gas Flow Measuring System function smoothly, improve the accuracy of measurement, and easy for installation, long service life.
Accompanying drawing explanation
Be further described the utility model below in conjunction with accompanying drawing, Fig. 1 is the structural representation of blast furnace gas Flow Measuring System, and Fig. 2 is sectional structure schematic diagram of the present utility model.
Embodiment
The anti-clogging protective device of differential pressure transmitter in a kind of measurement of gas flow system; as shown in Figure 1 and Figure 2; comprise by orifice plate; the measurement of gas flow system of positive and negative connecting pipe 1,2, three valve group 3, differential pressure transmitter 4 and flow rate calculation system composition, is characterized in that: in the junction block 5 that positive and negative connecting pipe 1,2 is connected with three valve group 3 valves, middle bench place is fixedly mounted with screen pack 6 by obturator ring 7.In junction block 5, the step place at middle part is fixedly mounted with two-layer spaced screen pack 6 respectively respectively by respective obturator ring 7 successively.
Claims (2)
1. the anti-clogging protective device of differential pressure transmitter in a measurement of gas flow system; comprise by orifice plate; the measurement of gas flow system of positive and negative connecting pipe (1,2), three valve groups (3), differential pressure transmitter (4) and flow rate calculation system composition, is characterized in that: in the junction block (5) that positive and negative connecting pipe (1,2) is connected with three valve group (3) valves, middle bench place is fixedly mounted with screen pack (6) by obturator ring (7).
2. the anti-clogging protective device of differential pressure transmitter in a kind of measurement of gas flow system according to claim 1, is characterized in that: in junction block (5), the step place at middle part is fixedly mounted with two-layer spaced screen pack (6) respectively respectively by respective obturator ring (7) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520155482.8U CN204594524U (en) | 2015-03-18 | 2015-03-18 | The anti-clogging protective device of differential pressure transmitter in measurement of gas flow system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520155482.8U CN204594524U (en) | 2015-03-18 | 2015-03-18 | The anti-clogging protective device of differential pressure transmitter in measurement of gas flow system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204594524U true CN204594524U (en) | 2015-08-26 |
Family
ID=53930669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520155482.8U Expired - Fee Related CN204594524U (en) | 2015-03-18 | 2015-03-18 | The anti-clogging protective device of differential pressure transmitter in measurement of gas flow system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204594524U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374474A (en) * | 2018-12-05 | 2019-02-22 | 海宁市英德赛电子有限公司 | Electronic grade high-purity ammonia micro impurity element fast testing system |
| CN113088588A (en) * | 2021-04-09 | 2021-07-09 | 南京工程学院 | Unattended full-automatic autonomous control system and method for large-scale blast furnace injection system |
| CN113106177A (en) * | 2021-04-09 | 2021-07-13 | 南京工程学院 | Anti-blocking and blockage-removing control device and method based on differential type large-scale blast furnace injection system |
-
2015
- 2015-03-18 CN CN201520155482.8U patent/CN204594524U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374474A (en) * | 2018-12-05 | 2019-02-22 | 海宁市英德赛电子有限公司 | Electronic grade high-purity ammonia micro impurity element fast testing system |
| CN113088588A (en) * | 2021-04-09 | 2021-07-09 | 南京工程学院 | Unattended full-automatic autonomous control system and method for large-scale blast furnace injection system |
| CN113106177A (en) * | 2021-04-09 | 2021-07-13 | 南京工程学院 | Anti-blocking and blockage-removing control device and method based on differential type large-scale blast furnace injection system |
| CN113106177B (en) * | 2021-04-09 | 2022-06-17 | 南京工程学院 | Anti-blocking and blockage-removing control device and method based on differential type large-scale blast furnace injection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20160318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |