CN218956471U

CN218956471U - Zirconia oxygen measuring device in hot wet CEMS (continuous casting mold) for glass industry

Info

Publication number: CN218956471U
Application number: CN202222885989.1U
Authority: CN
Inventors: 西圣河; 张泽华; 张甲亮; 董晓越; 马永跃
Original assignee: Shandong Mingsheng Environmental Protection Technology Co ltd
Current assignee: Shandong Mingsheng Environmental Protection Technology Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-05-02
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses a zirconia oxygen measuring device in a hot wet CEMS (chemical vapor deposition) for the glass industry, belonging to the technical field of environmental pollution; the device comprises a sampling probe, a sampling pipe, a sampling ball valve, a primary filter, a sampling pump bypass valve, a secondary filter, a three-way valve, a measuring pool, an oxygen measuring module, an air pump, a filtering pressure reducing valve, a blowback electromagnetic valve, a heating box, a condenser and a peristaltic pump. According to the zirconia oxygen measuring device in the hot wet CEMS used for the glass industry, in the process of condensing moisture, gaseous acidic substances in smoke can be dissolved in water and discharged together, so that the dry smoke enters an oxygen measuring module and is insufficient to corrode the oxygen measuring module. Because the condenser is additionally arranged at the front end of the oxygen measuring module, the oxygen content measured by the module is a dry basis value, and dry and wet calculation is not needed.

Description

Zirconia oxygen measuring device in hot wet CEMS (continuous casting mold) for glass industry

Technical Field

The utility model relates to a zirconia oxygen measuring device in a hot wet CEMS (chemical vapor deposition) for glass industry, belonging to the technical field of environmental pollution.

Background

The hot wet method is to heat the sampling tube and the pipeline for conveying the gas to the analyzer, and send the hot wet gas to the analyzer, and all the other components are kept unchanged except the dust concentration of the gas in the sampling process of the hot wet system. In recent years, because the extraction type high-temperature hot-wet method on-line monitoring equipment can reflect the working condition of a chimney, the measurement data is more accurate and widely used.

CEMS is an abbreviation of Continuous Emission Monitoring System, and refers to a device for continuously monitoring the concentration and total emission amount of gaseous pollutants and particulate matters emitted from an atmospheric pollution source and transmitting information to a authorities in real time, which is called a "smoke automatic monitoring system", also called a "smoke emission continuous monitoring system" or a "smoke on-line monitoring system". The CEMS is respectively composed of a gaseous pollutant monitoring subsystem, a particulate matter monitoring subsystem, a smoke parameter monitoring subsystem and a data acquisition processing and communication subsystem. The gaseous pollutant monitoring subsystem is mainly used for monitoring gaseous pollutant SO ₂ 、NO _x Concentration and total emissions of the like; the particle monitoring subsystem is mainly used for monitoring the concentration and the total emission amount of smoke; the smoke parameter monitoring subsystem is mainly used for measuring smoke flow rate, smoke temperature, smoke pressure, smoke oxygen content, smoke humidity and the like, and is used for integrating total emission and converting related concentration; the data acquisition processing and communication subsystem is composed of a data acquisition device and a computer system, acquires various parameters in real time, generates dry bases, wet bases and converted concentrations corresponding to various concentration values, generates cumulative emission of days, months and years, completes compensation of lost data and transmits a report to a main department in real time. The smoke dust test is developed from a cross-flue opacity dust meter and a beta-ray dust meter to an insertion type directionBack-scattered infrared light or laser dust meters, front scattering, side scattering, electrical dust meters, etc.

The existing hot wet extraction type hot wet monitoring equipment (hereinafter referred to as hot wet CEMS) is characterized in that due to the working characteristics, moisture, particulate matters and other impurities in the flue gas pass through a sampling probe and a sampling tube under the suction force of a sampling pump, and then enter a measuring tank and a zirconia head after passing through a primary filter and a secondary filter; if such equipment is used in the glass industry or other industries where the flue gas contains strong acid, the zirconia heads are dissolved and corroded by the strong acid such as hydrofluoric acid to fail.

For the flue gas containing gaseous strong acid such as hydrofluoric acid, if the traditional extraction type hot wet CEMS is adopted for measurement, the used zirconia probe is directly inserted into a chimney for measurement or is placed in a heating box of a main cabinet, no matter which way is used, the zirconia material in the probe can be inevitably contacted with acidic substances in the flue gas to be dissolved and corroded, the service life of an oxygen measuring module is greatly shortened, the replacement cost is high, and the zirconia failure cannot be measured.

Therefore, the zirconia oxygen measuring device in the hot wet CEMS for the glass industry is provided, the service life of an oxygen measuring module is prolonged, and the replacement cost is reduced, so that the technical problem which is urgently needed to be solved in the technical field is solved.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, provides a zirconia oxygen measuring device for a hot wet CEMS in the glass industry, prolongs the service life of an oxygen measuring module, reduces the replacement cost and has certain economic benefit.

The above object of the present utility model is achieved by the following technical solutions:

a zirconia oxygen measuring device for glass trade's hot wet process CEMS, its characterized in that: the device comprises a sampling probe, a sampling pipe, a sampling ball valve, a primary filter, a sampling pump bypass valve, a secondary filter, a three-way valve, a measuring pool, an oxygen measuring module, an air pump, a filtering pressure reducing valve, a blowback electromagnetic valve, a heating box, a condenser and a peristaltic pump; the sampling probe is connected with a pipeline in the heating box through a sampling pipe, the filtering pressure reducing valve is connected with a back-flushing electromagnetic valve, and the back-flushing electromagnetic valve is connected with a sampling ball valve in the heating box; the air pump is connected with a three-way valve in the heating box; the measuring pool is connected with a peristaltic pump through a pipeline, the peristaltic pump is connected with a condenser, and the condenser is connected with the oxygen measuring module; the sampling ball valve is connected with the first-stage filter, the first-stage filter is connected with the sampling pump, the sampling pump bypass valve is connected with the sampling pump in parallel, the second-stage filter is connected with the sampling pump in series, the second-stage filter is connected with one end of the three-way valve, the other end of the three-way valve is connected with the air pump, the other end of the three-way valve is connected with the measuring pool, and the measuring pool is connected with the peristaltic pump.

Preferably, the oxygen measuring module is located outside the heating box.

Preferably, the peristaltic pump and the condenser are located outside the heating tank.

The beneficial effects are that:

the zirconia oxygen measuring device for the hot wet CEMS in the glass industry, disclosed by the utility model, has the advantages of prolonging the service life of an oxygen measuring module, reducing the replacement cost and having certain economic benefits.

The utility model is further illustrated by the drawings and the detailed description which follow, but are not meant to limit the scope of the utility model.

Drawings

FIG. 1 is a schematic diagram of a zirconia oxygen measuring device in a hot wet CEMS for glass industry.

The main reference numerals illustrate:

1 sampling probe 2 sampling tube

4 one-level filter of 3 sampling ball valve

5 sampling pump 6 sampling pump bypass valve

7-stage filter 8 three-way valve

9 measuring cell 10 oxygen measuring module

11 air pump 12 filter reducing valve

13 blowback solenoid valve 14 heating cabinet

15 condenser 16 peristaltic pump

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the embodiments of the present utility model, all parts used are conventional parts commercially available in the art, and the connection between the parts is conventional.

Example 1

FIG. 1 is a schematic diagram of a device for measuring oxygen in zirconia in a hot wet CEMS used in the glass industry; wherein 1 is a sampling probe, 2 is a sampling tube, 3 is a sampling ball valve, 4 is a primary filter, 5 is a sampling pump, 6 is a sampling pump bypass valve, 7 is a secondary filter, 8 is a three-way valve, 9 is a measuring pool, 10 is an oxygen measuring module, 11 is an air pump, 12 is a filtering pressure reducing valve, 13 is a back-blowing electromagnetic valve, 14 is a heating box, 15 is a condenser, and 16 is a peristaltic pump; the utility model relates to a zirconia oxygen measuring device in a hot wet CEMS used for the glass industry, which comprises a sampling probe 1, a sampling pipe 2, a sampling ball valve 3, a primary filter 4, a sampling pump 5, a sampling pump bypass valve 6, a secondary filter 7, a three-way valve 8, a measuring tank 9, an oxygen measuring module 10, an air pump 11, a filtering pressure reducing valve 12, a back-blowing electromagnetic valve 13, a heating box 14, a condenser 15 and a peristaltic pump 16; the sampling probe 1 is connected with a pipeline in the heating box 14 through the sampling pipe 2, and back-blowing gas enters the heating box 14 through the pipeline through the filtering pressure reducing valve 12 and the back-blowing electromagnetic valve 13 for heating (the filtering pressure reducing valve 12 is connected with the back-blowing electromagnetic valve 13, and the back-blowing electromagnetic valve 13 is connected with the sampling ball valve 3 in the heating box 14); air enters the heating box 14 through a pipeline and the air pump 11 for heating (the air pump 11 is connected with the three-way valve 8 in the heating box 14); the heating box 14 is connected with a peristaltic pump 16 through a pipeline, the peristaltic pump 16 is connected with a condenser 15, and the condenser 15 is connected with the oxygen measuring module 10; the heating box 14 includes: the device comprises a sampling ball valve 3, a primary filter 4, a sampling pump 5, a sampling pump bypass valve 6, a secondary filter 7, a three-way valve 8 and a measuring pool 9; the sampling ball valve 3 is connected with the first-stage filter 4, the first-stage filter 4 is connected with the sampling pump 5, the sampling pump bypass valve 6 is connected with the sampling pump 5 in parallel, the second-stage filter 7 is connected with the sampling pump 5 in series, the second-stage filter 7 is connected with one end of the three-way valve 8, the other end of the three-way valve 8 is connected with the air pump 11, the other end of the three-way valve 8 is connected with the measuring cell 9, and the measuring cell 9 is connected with the peristaltic pump 16.

The utility model relates to a zirconia oxygen measuring device in a hot wet CEMS (chemical vapor deposition) for glass industry, which is characterized in that an oxygen measuring module is moved from a heating box to the outside of the heating box, a condenser is added at the front end of a flow path of the oxygen measuring module, after flue gas is discharged from the heating box and passes through the condenser, moisture in the flue gas is condensed and then is attached to the inner wall of glass of a cold cavity of the condenser, and finally, the flue gas is discharged through a peristaltic pump. Experiments prove that in the process of condensing moisture, gaseous acidic substances in the flue gas can be dissolved in water and discharged together, so that the dry flue gas enters the oxygen measuring module and is insufficient to corrode the oxygen measuring module. Of particular note is: because the condenser is additionally arranged at the front end of the oxygen measuring module, the oxygen content measured by the module is a dry basis value, and dry and wet calculation is not needed.

The utility model relates to a zirconia oxygen measuring device in a hot wet CEMS (continuous flow monitoring system) for glass industry, which is characterized in that a sampling pipeline behind a measuring pool of hot wet on-line monitoring equipment is led out of a heating box for cooling, and then a primary condenser and a secondary condenser are used for cooling and condensing for the second time, so that the discharge of acid gases such as gaseous hydrofluoric acid and the like in smoke along with the condensation of water vapor is ensured, relatively dry smoke is led into an oxygen measuring module for measuring the oxygen content, and finally tail gas is led outdoors.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should cover the present utility model according to the technical scheme and the inventive concept of the present utility model or the equivalent substitution or modification.

Claims

1. A zirconia oxygen measuring device for glass trade's hot wet process CEMS, its characterized in that: the device comprises a sampling probe, a sampling pipe, a sampling ball valve, a primary filter, a sampling pump bypass valve, a secondary filter, a three-way valve, a measuring pool, an oxygen measuring module, an air pump, a filtering pressure reducing valve, a blowback electromagnetic valve, a heating box, a condenser and a peristaltic pump; the sampling probe is connected with a pipeline in the heating box through a sampling pipe, the filtering pressure reducing valve is connected with a back-flushing electromagnetic valve, and the back-flushing electromagnetic valve is connected with a sampling ball valve in the heating box; the air pump is connected with a three-way valve in the heating box; the measuring pool is connected with a peristaltic pump through a pipeline, the peristaltic pump is connected with a condenser, and the condenser is connected with the oxygen measuring module; the sampling ball valve is connected with the first-stage filter, the first-stage filter is connected with the sampling pump, the sampling pump bypass valve is connected with the sampling pump in parallel, the second-stage filter is connected with the sampling pump in series, the second-stage filter is connected with one end of the three-way valve, the other end of the three-way valve is connected with the air pump, the other end of the three-way valve is connected with the measuring pool, and the measuring pool is connected with the peristaltic pump.

2. The apparatus for measuring oxygen of zirconia in CEMS by hot wet process for glass industry according to claim 1, wherein: the oxygen measuring module is positioned outside the heating box.

3. The apparatus for measuring oxygen of zirconia in CEMS by hot wet process for glass industry according to claim 2, wherein: the peristaltic pump and the condenser are positioned outside the heating box.