CN214334669U

CN214334669U - Ultraviolet differential analyzer

Info

Publication number: CN214334669U
Application number: CN202022842930.5U
Authority: CN
Inventors: 李宝旗; 张星学; 蒋大勇; 董强; 蒋茂才
Original assignee: Shandong Lize Environmental Technology Service Co ltd
Current assignee: Shandong Lize Environmental Technology Service Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-10-01
Anticipated expiration: 2030-12-02

Abstract

The utility model relates to an ultraviolet differential analyzer, which comprises a spectrometer and a gas chamber, wherein the gas chamber comprises a tube body and end covers fixedly connected with the two ends of the tube body in a sealing way, one end cover is provided with a light source extending into the gas chamber, the other end cover is provided with a receiver extending into the gas chamber, the receiver is electrically connected with the spectrometer, the end faces of the two ends of the tube body are provided with annular sinking grooves, the side face of the tube body is provided with an air outlet pipe and an air inlet pipe, one of the annular sinking grooves is communicated with the air outlet pipe, the other annular sinking groove is communicated with the air inlet pipe, the end face of the end cover close to the tube body is provided with a plurality of end cover gas holes positioned in the tube body, the end face of the end cover close to the tube body is also provided with a plurality of intercommunicating holes respectively communicated with the end cover gas holes, the intercommunicating holes are communicated with the annular sinking grooves, the gas of the utility model enters the gas chamber along the axial direction of the gas chamber, the gas flow is stable, and the stability and the precision of detection are improved.

Description

Ultraviolet differential analyzer

Technical Field

The utility model relates to a flue gas detection device technical field specifically indicates an ultraviolet differential analyzer.

Background

With the development of the level of industrialization, more and more factories, vehicles, and the like are emerging. Air quality is seriously deteriorated due to gas discharged from factories during production and tail gas discharged from vehicles, especially in large and medium cities, and thus the air quality is receiving more and more attention.

The main pollutants in the flue gas include sulfur dioxide, nitrogen oxides, particulate pollutants and the like. An ultraviolet differential analyzer is an important instrument for detecting gas, and the principle of the ultraviolet differential analyzer is to utilize the ultraviolet differential absorption principle. In the ultraviolet differential analyzer, one end of a gas chamber is used as incident light, the other end is used as emergent light, and the interior of the gas chamber is filled with a gas to be detected.

Most of the existing ultraviolet differential analyzers are straight-through gas chambers, gas inlet pipes and gas outlet pipes are communicated with the side faces of the gas chambers, and gas enters the gas chambers along the radial direction, so that the gas impacts the inner walls of the gas chambers firstly and then flows along the length direction of the gas chambers, the flowing direction of the gas in the gas chambers is disordered, and the detection effect is influenced.

Disclosure of Invention

The utility model discloses to prior art's not enough, provide an ultraviolet difference analysis appearance, make gaseous along the axial gaseous room of entering, avoid gaseous disorder.

The utility model discloses a following technical scheme realizes, provides an ultraviolet differential analysis appearance, including spectrum appearance and gaseous room, gaseous room includes the body and sealed rigid coupling is equipped with on the end cover at body both ends and stretches into to the light source of gaseous indoor portion, is equipped with on another end cover and stretches into the receiver to gaseous indoor portion, receiver and spectrum appearance electric connection, it has the annular to sink the groove to open on the terminal surface at body both ends, and outlet duct and intake pipe are equipped with to the side of body, and one of them annular sinks groove and outlet duct intercommunication, another annular sinks groove and intake pipe intercommunication, it has a plurality of end cover gas holes that lie in the body inside to open on the terminal surface that the end cover is close to the body, and it has a plurality of intercommunicating pore that communicates respectively with end cover gas hole still to open on the terminal surface that the end cover is close to the body, intercommunicating pore and annular sink the groove intercommunication.

In the scheme, gas enters one annular sinking groove through the gas inlet pipe, and is communicated with the communicating hole through the annular sinking groove, so that the gas enters the communicating hole and then enters the end cover gas hole, and therefore the gas enters the gas chamber along the axial direction of the gas chamber, the gas flows stably, and the stability and the precision of detection are improved.

And as optimization, two radial holes of the tube body are formed in the outer circumferential surface of the tube body and are counter bores, the two radial holes of the tube body are respectively communicated with the two annular counter grooves through the axial holes of the tube body, one radial hole of the tube body is communicated with the air outlet pipe, and the other radial hole of the tube body is communicated with the air inlet pipe. The radial hole of body in this scheme is used for connecting outlet duct or intake pipe to sink the groove intercommunication through body axial hole and annular, thereby realize the intercommunication in outlet duct and intake pipe and annular heavy groove, the processing of being convenient for simultaneously.

Preferably, the axial hole and the communication hole of the pipe body are arranged in a staggered mode in the circumferential direction of the annular sinking groove. In the scheme, the axial holes and the communication holes of the pipe body are arranged in a staggered mode in the circumferential direction of the annular sinking groove, so that after gas in the gas inlet pipe enters the annular sinking groove through the axial holes of the pipe body, the gas in the axial holes of the pipe body impacts on the end face of the end cover and then is dispersed to the communication holes, and the gas in the communication holes is enabled to be uniform.

Preferably, an end cover radial hole is formed in the end cover in the radial direction, and the end cover gas hole is communicated with the communication hole through the end cover radial hole. In the scheme, the end cover gas hole is communicated with the communicating hole through the end cover radial hole, so that the end cover gas hole is communicated with the communicating hole through processing the end cover radial hole.

Preferably, the end cover radial hole is a counter bore formed in the outer circumferential surface of the end cover, and the end of the end cover radial hole is provided with a plug. According to the scheme, the end cover radial hole is a counter bore formed in the outer circumferential surface of the end cover, so that the end cover radial hole can be conveniently machined, and the plug is used for plugging the opening of the end cover radial hole.

Preferably, the number of the end cover gas holes is 6, and the end cover gas holes are uniformly distributed along the circumferential direction of the center of the end cover. In this scheme end cover gas hole is provided with 6 and along the central circumference equipartition of end cover to make gaseous even entering gas chamber through 6 end cover gas holes.

The utility model has the advantages that: the utility model discloses an ultraviolet differential analyzer makes gas pass through the intake pipe and gets into one of them annular heavy groove, through annular heavy groove and intercommunicating pore intercommunication, makes gas get into the intercommunicating pore, then enters end cover gas hole to make gas get into gas chamber along gas chamber's axial direction, make gas flow stable, improve the stability and the precision that detect.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is another schematic perspective sectional view of the present invention;

FIG. 3 is a schematic view of the end cap of the present invention near one side of the tube body;

FIG. 4 is a schematic view of the tube body near one side of the end cap;

shown in the figure:

1. the device comprises a pipe body radial hole, 2 a pipe body axial hole, 3 an annular sinking groove, 4 a communication hole, 5 an end cover radial hole, 6 an end cover gas hole, 7 a plug, 8 a pipe body, 9 an end cover, 10 a gas outlet pipe, 11 a gas inlet pipe, 12 a light source, 13 a receiver, 14 a temperature sensor, 15 and a spectrometer.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

As shown in FIGS. 1-4, the utility model discloses an ultraviolet differential analyzer, including spectrum appearance and gas chamber, still including installing at the temperature sensor 14 that reaches the gas chamber inside, temperature sensor 14 is used for detecting the temperature of being surveyed the gas.

The gas chamber comprises a pipe body 8 and end covers 9 fixedly connected to two ends of the pipe body 8 in a sealing mode, the pipe body 8 and the end covers 9 are made of metal materials, the side faces of the end covers 9 are attached to the end faces of the pipe body 8 in an abutting mode, the outer circle diameter of each end cover 9 is the same as that of the pipe body 8, and the end covers 9 and the pipe body 8 can be connected through bolt flanges and can also be fixed through welding.

One end cover is provided with a light source 12 extending into the gas chamber, the other end cover is provided with a receiver 13 extending into the gas chamber, the light source 12 penetrates through the gas chamber to irradiate the receiver 13, and the receiver 13 is electrically connected with a spectrometer 15.

Open on the terminal surface at 8 both ends of body has annular heavy groove 3, and annular heavy groove 3 is concentric with the body, and outlet duct 10 and intake pipe 11 are equipped with to the side of body 8, it has two body radial holes 1 to open on the outer periphery of body 8, and body radial hole 1 is close to the both ends of body 8 respectively, body radial hole 1 is the counter bore, and two body radial holes 1 communicate with two annular heavy grooves 3 through body axial hole 2 respectively, and body axial hole 2 is for seting up the counter bore along axial extension in 3 bottom surfaces of annular heavy groove, and the degree of depth in body axial hole 2 extends to the bottom of body radial hole 1.

One of the radial holes 1 of the tube body is communicated with the air outlet tube 10, and the other radial hole 1 of the tube body is communicated with the air inlet tube 11, so that one of the annular sunken grooves 3 is communicated with the air outlet tube 10, and the other annular sunken groove 3 is communicated with the air inlet tube 11.

End cover 9 is opened on being close to the terminal surface of body 8 and is had a plurality of end cover gas holes 6 that lie in body 8 inside, and end cover gas holes 6 are the counter bore, and end cover gas holes 6 are provided with 6 and follow the central circumference equipartition of end cover 9 in this embodiment.

The end face, close to the pipe body 8, of the end cover 9 is also provided with 6 communication holes 4 respectively communicated with the end cover gas holes 6, the 6 communication holes 4 are uniformly distributed along the central circumference of the end cover 9, the communication holes 4 are also counter bores, and after the end cover 9 is installed on the pipe body 8, the communication holes 4 are positioned in the groove openings of the annular sinking grooves 3, so that the communication holes 4 are communicated with the annular sinking grooves 3.

The pipe body axial hole 2 and the communication holes 4 are arranged in a staggered mode in the circumferential direction of the annular sinking groove 3, so that gas in the pipe body axial hole 2 enters the annular sinking groove 3 and then impacts the end face of the end cover 9, and the gas is dispersed and enters each communication hole 4.

An end cover radial hole 5 is formed in the end cover 9 along the radial direction, the end cover radial hole 5 is a counter bore formed in the outer circumferential surface of the end cover, and the end cover radial hole 5 penetrates through the communicating hole 4 and the end cover gas hole 6, so that the end cover gas hole 6 is communicated with the communicating hole 4 through the end cover radial hole 5.

And a plug 7 is arranged at the end part of the end cover radial hole 5, and the plug 7 is fastened at the orifice of the end cover radial hole 5 through thread sealing.

The utility model discloses a use method: the gas to be detected enters one of the annular sunken grooves 3 through the gas inlet pipe, is communicated with the communicating hole through the annular sunken groove 3, so that the gas enters the communicating hole and then enters the end cover gas hole, so that the gas enters the gas chamber along the axial direction of the gas chamber, then the gas enters the gas outlet pipe through the end cover gas hole at the other end, the light source emits ultraviolet light, the ultraviolet light penetrates through the gas in the gas chamber to irradiate the receiver 13, and the spectrometer analyzes the light received by the receiver 13, so that the gas to be detected is detected.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.

Claims

1. An ultraviolet differential analyzer, includes spectrum appearance and gas chamber, its characterized in that: the gas chamber comprises a tube body (8) and end covers (9) which are fixedly connected with two ends of the tube body (8) in a sealing mode, a light source (12) which stretches into the gas chamber is arranged on one end cover, a receiver (13) which stretches into the gas chamber is arranged on the other end cover, the receiver (13) is electrically connected with a spectrometer (15), annular sinking grooves (3) are formed in the end faces of two ends of the tube body (8), an air outlet pipe (10) and an air inlet pipe (11) are arranged on the side face of the tube body (8), one annular sinking groove (3) is communicated with the air outlet pipe (10), the other annular sinking groove (3) is communicated with the air inlet pipe (11), a plurality of end cover gas holes (6) which are located in the tube body (8) are formed in the end face of the end cover (9) close to the tube body (8), a plurality of communicating holes (4) which are respectively communicated with the end cover gas holes (6) are formed in the end face of the end cover (9) close to the tube body (8), the communication hole (4) is communicated with the annular sinking groove (3).

2. The ultraviolet differential analyzer as set forth in claim 1, wherein: open on the outer periphery of body (8) has two radial holes of body (1), radial hole of body (1) is the counter bore, and two radial holes of body (1) are respectively through body axial hole (2) and two annular heavy grooves (3) intercommunication, and one of them radial hole of body (1) and outlet duct (10) intercommunication, another radial hole of body (1) and intake pipe (11) intercommunication.

3. The ultraviolet differential analyzer as set forth in claim 2, wherein: the pipe axial hole (2) and the communicating hole (4) are arranged in a staggered mode in the circumferential direction of the annular sinking groove (3).

4. The ultraviolet differential analyzer as set forth in claim 1, wherein: an end cover radial hole (5) is formed in the end cover (9) along the radial direction, and the end cover gas hole (6) is communicated with the communicating hole (4) through the end cover radial hole (5).

5. The ultraviolet differential analyzer as set forth in claim 4, wherein: the end cover radial hole (5) is a counter bore arranged on the outer circumferential surface of the end cover, and the end part of the end cover radial hole (5) is provided with a plug (7).

6. The ultraviolet differential analyzer as set forth in claim 1, wherein: the end cover gas holes (6) are provided with 6 and are uniformly distributed along the circumferential direction of the center of the end cover (9).