CN108507839A - sedimentation furnace constant temperature sampling method - Google Patents
sedimentation furnace constant temperature sampling method Download PDFInfo
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- CN108507839A CN108507839A CN201810528735.XA CN201810528735A CN108507839A CN 108507839 A CN108507839 A CN 108507839A CN 201810528735 A CN201810528735 A CN 201810528735A CN 108507839 A CN108507839 A CN 108507839A
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- temperature
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- sampler barrel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N2001/2282—Devices for withdrawing samples in the gaseous state with cooling means
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Abstract
The invention discloses a kind of sedimentation furnace constant temperature sampling methods, are related to coal combustion flue gas sampling gun field.The present invention includes the following steps：Step A：Get out heat pipe phase-change heat-exchange constant temperature sampling gun；Step B：The temperature preset value of setting constant temperature sampling on the control unit, when the temperature value of temperature measuring mechanism detection is more than temperature preset value, control solenoid valve is opened, and when the temperature value of temperature measuring mechanism detection is equal to temperature preset value, control solenoid valve is closed；Step C：Through portion of the flue gas inside sampler barrel is passed through after being cooled to assigned temperature in flue gas analyzer.It is unified that flue-gas temperature is sampled when it is an object of the invention to overcome the shortcomings of that existing sampler is unable to ensure sampling, provide a kind of sedimentation furnace constant temperature sampling method, the sampling flue gas flowed in sampler barrel through portion is constantly subjected to temperature with high efficiency by Working fluid phase changing heat exchange, and ensures that the flue-gas temperature sampled out is consistent.
Description
Technical field
The present invention relates to coal combustion flue gas sampling gun fields, more specifically to a kind of sedimentation furnace constant temperature sampling side
Method.
Background technology
It will produce the pollutant of welding in process of coal combustion, reinforce to Air-pollution From Combustion species and coal combustion process
Analysis, it is the basis that research control pollutant generates to understand pollutant formation mechenism in depth.
Sampling gun is the device that combustion product is sampled and is collected, by stretching into sampling gun according to the height of setting
Different location extracts the flue gas and Coal Char Particles that burning generates in sedimentation furnace, to be analysed in depth to combustion process.It is existing
Have related patents scheme about combustion product gases sampler in technology to disclose, such as patent publication No.：105466732 A of CN,
Publication date：On 04 06th, 2016, invention and created name was：A kind of efficient scalable flue dust sampler, this application disclose
A kind of efficiently scalable flue dust sampler, sampling head connects by Pitot tube with filter cylinder, filter cylinder and heat anti-backflow device
Connection, gas-guide tube are connected to filtering adsorption net, and absorption sieve bottom is provided with refrigerated dehumidification device, and refrigerated dehumidification device passes through blowback electromagnetism
Valve controls, and protection pipe is connected with extension pipe, and extension pipe is internally provided with automatic telescopic link and telescoping catheter, and extension pipe passes through pillar
Set is connected with automatic telescopic link, and the mobile drive telescoping catheter of automatic telescopic link is elastic, and heating is wound on the outer wall of outer tube
Band, temperature sensor are arranged between outer tube and heating tape.The sampler of this application is by probe tube and heating control system
It integrates, adds dehumidification function, heating, drying function, condensate water-proof and flow backwards function, ensure analysis accuracy rate, improve work
Efficiency, whole scalable, it is convenient all to be brought when to use, carrying, transport or store.But the shortcoming of this application exists
In：Existing sampler generally requires to be sampled the flue gas of various pieces different temperature condition in combustion apparatus respectively, should
The sampler of application case is unable to ensure the unification that flue-gas temperature is sampled when sampling, to be unfavorable for sampling the accurate research of flue gas
Analysis.
In conclusion how to overcome the shortcomings of that sampling flue-gas temperature is unified when existing sampler is unable to ensure sampling, is
In the prior art the technical issues of urgent need to resolve.
Invention content
1. technical problems to be solved by the inivention
It is unified that flue-gas temperature is sampled when it is an object of the invention to overcome the shortcomings of that existing sampler is unable to ensure sampling,
A kind of sedimentation furnace constant temperature sampling method is provided, the sampling cigarette that will constantly be flowed in sampler barrel through portion by Working fluid phase changing heat exchange
Gas carries out temperature with high efficiency, and ensures that the flue-gas temperature sampled out is consistent.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention is：
The sedimentation furnace constant temperature sampling method of the present invention, includes the following steps：
Step A：Get out heat pipe phase-change heat-exchange constant temperature sampling gun；
Step B：Sampler barrel is stretched into sedimentation furnace to the position for needing to carry out smoke sampling, and setting is permanent on the control unit
The temperature preset value of temperature sampling, when the temperature value of temperature measuring mechanism detection is more than temperature preset value, control solenoid valve is opened, once
When the temperature value of temperature measuring mechanism detection is equal to temperature preset value, control solenoid valve is closed；
Step C：Through portion of the flue gas inside sampler barrel is passed through after being cooled to assigned temperature in flue gas analyzer, sedimentation
The solid particulate matter that coal dust firing generates in stove is collected by coal tar receiving flask.
As further improvement of the present invention, the heat pipe phase-change heat-exchange constant temperature sampling gun includes：
Sampling portion, the sampling portion includes sampler barrel, the sampler barrel include middle part through portion and be located at the perforation
The toroidal cavity of portion's surrounding；The outer surface of the toroidal cavity madial wall is fitted with interior mounting ring, the toroidal cavity lateral wall
Inner surface be fitted with outer mounting ring；It is respectively provided with capillary in the interior mounting ring and the outer mounting ring；It is described
Temperature measuring mechanism is installed, the temperature measuring mechanism is connect with control unit at the top of through portion；
Pedestal, the sampler barrel are installed on above the pedestal, and the through portion of the sampler barrel extends downwardly and runs through bottom
Inlet communication after seat with communicating pipe, the outlet of the communicating pipe is drawn downwards all the way to be connected to coal tar receiving flask, the company
Another road direction side in outlet of siphunculus is drawn to be connected to flue gas analyzer；
And working medium receiving flask, the working medium receiving flask is interior to be filled with working medium；The working medium receiving flask passes through connecting pipe
It is connected to the bottom of the toroidal cavity, solenoid valve is installed in the connecting pipe；The control circuit of the solenoid valve and institute
State control unit connection.
As further improvement of the present invention, the inside of the outer mounting ring and the interior mounting ring is connected separately with volume
Net processed, it is described to work out the capillary that vertical direction setting is fastened at the net knot netted.
As further improvement of the present invention, pass through several connecting rods between the outer mounting ring and the interior mounting ring
Connection.
As further improvement of the present invention, the bottom inside the toroidal cavity is equipped with bottom saturated ring, the bottom
Portion's saturated ring is the solid material mutually infiltrated with the working medium, and the bottom saturated ring is equipped with several through-holes；The connecting tube
The connectivity part in road and the toroidal cavity is located on the outer circumference surface of bottom saturated ring.
As further improvement of the present invention, the outer mounting ring along its length on be divided into several sections, adjacent two
It is provided with outer saturated ring between the outer mounting ring of section；The interior mounting ring along its length on be divided into several sections, adjacent two sections
Interior saturated ring is provided between mounting ring；The outer saturated ring is the solid mutually infiltrated with the working medium with the interior saturated ring
Material, the outer saturated ring are equipped with several through-holes with the interior saturated ring.
As further improvement of the present invention, the surrounding of the sampler barrel bottom is covered with cooling dome, the cooling dome
One end is equipped with air inlet, which is connected to the air blower, and the other end of the cooling dome is equipped with air outlet.
It is equipped with and is vertically arranged close to the position of air inlet as further improvement of the present invention, inside the cooling dome
Demarcation strip, air inlet plane where the demarcation strip is symmetrical.
As further improvement of the present invention, the outer surface of the sampler barrel is provided with graduation mark.
3. advantageous effect
Using technical solution provided by the invention, compared with prior art, there is following remarkable result：
(1) present invention in, sampling portion includes sampler barrel, the sampler barrel include middle part through portion and be located at through portion four
The toroidal cavity in week；The outer surface of toroidal cavity madial wall is fitted with interior mounting ring, the inner surface fitting of toroidal cavity lateral wall
There is outer mounting ring；It is respectively provided with capillary in interior mounting ring and outer mounting ring, working medium, work are filled in working medium receiving flask
Matter receiving flask is connected to by connecting pipe with the bottom of toroidal cavity, and in actual use, entire sampling portion plays heat pipe heat exchanging
Effect, the toroidal cavity on sampler barrel top absorb around heat, the working medium of the corresponding position boil-off gas after absorbing amount of heat
Change and flow downwards, condensation liquefaction occurs after exchanging heat with ambient enviroment for the gasification working medium for flowing to sampler barrel bottom, after liquefaction
Capillary of the working medium in outer mounting ring and interior mounting ring be transported up and reach sampler barrel top, then proceed to steam
Getting angry, it is reciprocal with this, constantly the sampling flue gas flowed in sampler barrel through portion is efficiently dropped by Working fluid phase changing heat exchange
Temperature.
(2) in the present invention, temperature measuring mechanism is installed, temperature measuring mechanism is connect with control unit, connecting tube at the top of through portion
Solenoid valve is installed, the control circuit of solenoid valve is connect with control unit, the temperature fed back by temperature measuring mechanism and control on road
The temperature preset value being arranged in unit is compared, and to regulate and control the opening and closing of solenoid valve, can be controlled the temperature in through portion
In designated value, to can ensure that the flue-gas temperature sampled out is consistent, in favor of sampling flue gas science, accurately research point
Analysis.
(3) in the present invention, the through portion of the sampler barrel side of being mounted on the base, sampler barrel extend downwardly and run through after pedestal and
The inlet communication of communicating pipe, the outlet of communicating pipe is drawn downwards all the way to be connected to coal tar receiving flask, and the outlet of communicating pipe is another
Road direction side is drawn and is connected to flue gas analyzer, and the flue gas being cooled in sampler barrel is introduced directly into flue gas analysis by communicating pipe
United analysis is carried out in instrument, coal tar receiving flask collects the solid particulate matter that coal dust firing generates in sedimentation furnace, then to collection
Solid particle analysis measures related data.
(4) in the present invention, the inside of outer mounting ring and interior mounting ring is connected separately with establishment net, works out and is fastened at the net knot of net
The capillary for having vertical direction to be arranged, is asked to efficiently solve installation of the capillary inside outer mounting ring and interior mounting ring
Topic, and capillary is fastened at the net knot of establishment net, manufacture craft greatly simplifies；Interior mounting ring can easily be nested in annular sky
The outer surface of chamber inner sidewall is connected between outer mounting ring and interior mounting ring by several connecting rods so that outer mounting ring is pacified inside
Fill the inner surface that toroidal cavity lateral wall is effectively fitted under the support of ring.
(5) in the present invention, the bottom inside toroidal cavity is equipped with bottom saturated ring, and bottom saturated ring is mutually to be infiltrated with working medium
Solid material, bottom saturated ring be equipped with several through-holes；Connecting pipe and the connectivity part of toroidal cavity are located at bottom saturated ring
Outer circumference surface on, outer mounting ring along its length on be divided into several sections, be provided with outer leaching between adjacent two sections of outer mounting rings
Moisten ring, interior mounting ring along its length on be divided into several sections, adjacent two sections and be provided with interior saturated ring, outer leaching between mounting ring
Profit ring is the solid material mutually infiltrated with working medium with interior saturated ring, and outer saturated ring is equipped with several through-holes with interior saturated ring,
In, bottom saturated ring, outer saturated ring and interior saturated ring are the solid material mutually infiltrated with corresponding working medium, in working medium receiving flask
Working medium be passed through in the saturated ring of bottom by connecting pipe first, then in outer mounting ring and interior mounting ring capillary hair
Spy is transported up under, since the length of sampler barrel is longer, in the present invention, is provided between adjacent two sections of outer mounting rings outer
Saturated ring is provided with interior saturated ring in adjacent two sections between mounting ring so that working medium is risen after certain altitude i.e. by capillary
It infiltrates, store in outer saturated ring and interior saturated ring, the capillary for next proceeding through top transports upwards, to be conducive to
Liquid working substance is constantly promoted to sampling portion top and is gasified, to maintain the continuous work of heat pipe heat exchanging to recycle.
(6) in the present invention, the surrounding of sampler barrel bottom is covered with cooling dome, and one end of cooling dome is equipped with air inlet, the air inlet
Mouth is connected to air blower, and the other end of cooling dome is equipped with air outlet, is equipped with vertically close to the position of air inlet inside cooling dome
The demarcation strip of setting, air inlet is symmetrical along plane where demarcation strip, and the cooling wind being blown into from air inlet is under the action of demarcation strip
Divide two-way to pass through in cooling dome, and the sampler barrel bottom of corresponding position is cooled down, is then discharged from air outlet, in order to
The cooling liquid of gas working medium in sampler barrel.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of the heat pipe phase-change heat-exchange constant temperature sampling gun of embodiment；
Fig. 2 is the schematic cross-sectional view along A-A in Fig. 1；
Fig. 3 is the partial enlargement structural representation at C in Fig. 2；
Fig. 4 is the schematic cross-sectional view along B-B in Fig. 1；
Fig. 5 is the flow chart of the sedimentation furnace constant temperature sampling method of embodiment.
Label declaration in schematic diagram：1, sampling portion；101, sampler barrel；102, bottom saturated ring；103, connecting rod；104、
Capillary；105, net is worked out；106, outer saturated ring；107, interior saturated ring；108, outer mounting ring；109, interior mounting ring；2, pedestal；
3, communicating pipe；4, flue gas analyzer；5, coal tar receiving flask；6, cooling dome；601, air inlet；602, air outlet；603, demarcation strip；
7, solenoid valve；8, working medium receiving flask.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Therefore, the embodiment of the present invention to providing in the accompanying drawings below
Detailed description be not intended to limit the range of claimed invention, but be merely representative of the present invention selected embodiment.
Based on the embodiments of the present invention, what those of ordinary skill in the art were obtained without creative efforts is all
Other embodiment shall fall within the protection scope of the present invention.
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
In conjunction with Fig. 1-4, the heat pipe phase-change heat-exchange constant temperature sampling gun of the present embodiment, including：Sampling portion 1, sampling portion 1 include taking
Sample cylinder 101 (304 stainless steels can be used in sampler barrel 101 or 314 stainless steels make), which includes the through portion at middle part
And the toroidal cavity positioned at through portion surrounding；The outer surface of toroidal cavity madial wall is fitted with interior mounting ring 109, toroidal cavity
The inner surface of lateral wall is fitted with outer mounting ring 108；It is respectively provided with capillary in interior mounting ring 109 and outer mounting ring 108
Pipe 104；Temperature measuring mechanism is installed, temperature measuring mechanism is connect with control unit at the top of through portion；Pedestal 2, sampler barrel 101 are installed on
2 top of pedestal, the through portion of sampler barrel 101 extend downwardly and run through the inlet communication after pedestal 2 with communicating pipe 3, communicating pipe 3
Outlet draws downwards be connected to coal tar receiving flask 5 all the way, and another road direction side in outlet of communicating pipe 3 is drawn and flue gas analyzer
4 connections；And working medium receiving flask 8, working medium receiving flask 8 is interior to be filled with working medium；Working medium receiving flask 8 is empty by connecting pipe and annular
The bottom of chamber is connected to, and solenoid valve 7 is equipped in connecting pipe；The control circuit of solenoid valve 7 is connect with control unit.This specific reality
It applies in example, the inside of outer mounting ring 108 and interior mounting ring 109 is connected separately with establishment net 105, works out and is fastened at the net knot of net 105
There is the capillary 104 that vertical direction is arranged；It is connected by several connecting rods 103 between outer mounting ring 108 and interior mounting ring 109.
Bottom inside toroidal cavity is equipped with bottom saturated ring 102, and bottom saturated ring 102 is the solid material mutually infiltrated with working medium, bottom
Portion's saturated ring 102 is equipped with several through-holes；Connecting pipe and the connectivity part of toroidal cavity are located at the excircle of bottom saturated ring 102
On face.Outer mounting ring 108 along its length on be divided into several sections, be provided with outer infiltration between adjacent two sections of outer mounting rings 108
Ring 106；Interior mounting ring 109 along its length on be divided into several sections, adjacent two sections and be provided with interior infiltration between mounting ring 109
Ring 107；Outer saturated ring 106 is the solid material mutually infiltrated with working medium, outer saturated ring 106 and interior infiltration with interior saturated ring 107
Ring 107 is equipped with several through-holes.The surrounding of 101 bottom of sampler barrel is covered with cooling dome 6, and one end of cooling dome 6 is equipped with air inlet
601, which is connected to air blower, and the other end of cooling dome 6 is equipped with air outlet 602.6 inside of cooling dome is close to air inlet
The position of mouth 601 is equipped with the demarcation strip 603 being vertically arranged, and air inlet 601 is symmetrical along 603 place plane of demarcation strip.
In conjunction with Fig. 5, the sedimentation furnace constant temperature sampling method of the present embodiment includes the following steps：
Step A：Get out heat pipe phase-change heat-exchange constant temperature sampling gun；
Step B：Sampler barrel 101 is stretched into sedimentation furnace to the position for needing to carry out smoke sampling, and is set on the control unit
The temperature preset value for determining constant temperature sampling, when the temperature value of temperature measuring mechanism detection is more than temperature preset value, control solenoid valve 7 is beaten
It opens, more working medium, which enter, participates in heat exchange in sampler barrel 101, heat transfer effect is promoted, once the temperature value etc. of temperature measuring mechanism detection
When temperature preset value, control solenoid valve 7 is closed；
Step C：Through portion of the flue gas inside sampler barrel 101 is passed through after being cooled to assigned temperature in flue gas analyzer 4,
The solid particulate matter that coal dust firing generates in sedimentation furnace is collected by coal tar receiving flask 5；
Step D：After being measured, sampler barrel 101 is taken out from sedimentation furnace, for the sake of considering safety and experiment effect,
Sampler barrel 101 is placed on to the place that is difficult to contact and divulge information, to accelerate the heat dissipation of sampler barrel 101, to ensure to take next time
The authenticity of sample.
The sedimentation furnaces such as existing drop tube furnace, sedimentation furnace sampling gun or high-temperature sampling apparatus by the way of water cooling tube wall, by
The sensible heat heat absorption of water is used in water cooling tube wall, it is difficult to ensure that can ideal be dropped to the sampling tube wall temperature of this high temperature sampling gun
Condition, the especially flue gas to 1000 degrees Celsius or more are difficult the gas particles freezed in hot environment using water cooling sampling gun
The physical-chemical reaction occurred in sampling process, to ensure the authenticity and accuracy of particle sampling；Meanwhile it is existing
Sampler generally requires to be sampled the flue gas of various pieces different temperature condition in combustion apparatus respectively, and existing sampling
Device is unable to ensure the unification that flue-gas temperature is sampled when sampling, is researched and analysed to be unfavorable for sampling the accurate of flue gas, therefore, such as
What carries out effective temperature-reducing to the flue gas that needs sample and ensures that the flue-gas temperature sampled out is consistent, in favor of sampling flue gas section
Learn, accurately research and analyse, be in the prior art urgent need to resolve the technical issues of.
In the present embodiment, sampling portion 1 includes sampler barrel 101, the through portion of the sampler barrel 101 including middle part and positioned at passing through
The toroidal cavity of logical portion's surrounding；The outer surface of toroidal cavity madial wall is fitted with interior mounting ring 109, toroidal cavity lateral wall it is interior
Surface is fitted with outer mounting ring 108；It is respectively provided with capillary 104, working medium in interior mounting ring 109 and outer mounting ring 108
Working medium is filled in receiving flask 8, working medium receiving flask 8 is connected to by connecting pipe with the bottom of toroidal cavity, in actual use, whole
A sampling portion 1 plays the effect of heat pipe heat exchanging, and the toroidal cavity on 101 top of sampler barrel absorbs the heat of surrounding, corresponding position
Working medium is evaporated after absorbing amount of heat to be gasified and flows downwards, flow to the gasification working medium of 101 bottom of sampler barrel with around
Condensation liquefaction occurs after environment heat exchange, capillary of the working medium after liquefaction in outer mounting ring 108 and interior mounting ring 109
104 are transported up 101 top of arrival sampler barrel, then proceed to that evaporation gasification occurs, reciprocal with this, are exchanged heat not by Working fluid phase changing
It is disconnected that the sampling flue gas flowed in 101 through portion of sampler barrel is subjected to temperature with high efficiency.
In the present embodiment, temperature measuring mechanism is installed at the top of through portion, temperature measuring mechanism is connect with control unit, connecting pipe
On solenoid valve 7 is installed, the control circuit of solenoid valve 7 is connect with control unit, by temperature measuring mechanism feed back temperature and control
The temperature preset value being arranged in unit is compared, and to regulate and control the opening and closing of solenoid valve 7, can be controlled the temperature in through portion
In designated value, to can ensure that the flue-gas temperature sampled out is consistent, in favor of sampling flue gas science, accurately research point
Analysis.
In the present embodiment, sampler barrel 101 is installed on 2 top of pedestal, and the through portion of sampler barrel 101 extends downwardly and runs through bottom
Inlet communication after seat 2 with communicating pipe 3, the outlet of communicating pipe 3 is drawn downwards all the way to be connected to coal tar receiving flask 5, communicating pipe 3
Another road direction side in outlet draw and be connected to flue gas analyzer 4, cooled flue gas passes through communicating pipe 3 in sampler barrel 101
It is introduced directly into flue gas analyzer 4 and carries out united analysis, coal tar receiving flask 5 collects the solid that coal dust firing generates in sedimentation furnace
Particulate matter, then the solid particle analysis to collection, measurement related data.
In the present embodiment, the inside of outer mounting ring 108 and interior mounting ring 109 is connected separately with establishment net 105, works out net
Fastened at 105 net knot vertical direction setting capillary 104, to efficiently solve capillary 104 outer mounting ring 108 with
And the installation question inside interior mounting ring 109, and capillary 104 is fastened at the net knot of establishment net 105, manufacture craft is significantly simple
Change；Interior mounting ring 109 can easily be nested in the outer surface of toroidal cavity madial wall, outer mounting ring 108 and interior mounting ring 109 it
Between pass through several connecting rods 103 and connect so that it is empty that outer mounting ring 108 is effectively fitted in annular under the support of interior mounting ring 109
The inner surface of chamber lateral wall.
In the present embodiment, bottom inside toroidal cavity is equipped with bottom saturated ring 102, and bottom saturated ring 102 is and working medium
The mutually solid material of infiltration, bottom saturated ring 102 are equipped with several through-holes；Connecting pipe and the connectivity part of toroidal cavity are located at bottom
On the outer circumference surface of portion's saturated ring 102, outer mounting ring 108 along its length on be divided into several sections, adjacent two sections of outer mounting rings
Be provided with outer saturated ring 106 between 108, interior mounting ring 109 along its length on be divided into mounting ring in several sections, adjacent two sections
Interior saturated ring 107 is provided between 109, outer saturated ring 106 is the solid material mutually infiltrated with working medium with interior saturated ring 107,
Outer saturated ring 106 and interior saturated ring 107 are equipped with several through-holes, wherein working medium can be used pure chemicals (nitrogen, argon, helium) and
Compound (ethane, freon) etc., liquid is when with solid contact, the phenomenon that extending and be attached to each other along the surface of solids, also known as
For liquid infiltrate solid, alternatively referred to as soak, bottom saturated ring 102, outer saturated ring 106 and interior saturated ring 107 be with it is right
The solid material that working medium mutually infiltrates is answered, the working medium in working medium receiving flask 8 is passed through bottom saturated ring 102 by connecting pipe first
It is interior, it is then transported up under the capillarity of capillary 104 in outer mounting ring 108 and interior mounting ring 109, due to sampler barrel
101 length is longer, in the present embodiment, is provided with outer saturated ring 106 between adjacent two sections of outer mounting rings 108, adjacent two sections
Interior saturated ring 107 is provided between interior mounting ring 109 so that working medium is soaked outside after rising certain altitude by capillary 104
Moisten infiltration in ring 106 and interior saturated ring 107, storage, the capillary 104 for next proceeding through top transports upwards, to have
It is constantly promoted to 1 top of sampling portion conducive to liquid working substance to be gasified, to maintain the continuous work of heat pipe heat exchanging to recycle.Specifically
In the present embodiment, capillary 104 is the straight tube that internal diameter is less than or equal to 0.01mm.
In the present embodiment, the surrounding of 101 bottom of sampler barrel is covered with cooling dome 6, and one end of cooling dome 6 is equipped with air inlet 601,
The air inlet 601 is connected to air blower, and the other end of cooling dome 6 is equipped with air outlet 602, and 6 inside of cooling dome is close to air inlet 601
Position the demarcation strip 603 being vertically arranged is installed, air inlet 601 is symmetrical along 603 place plane of demarcation strip, from air inlet 601
The cooling wind being blown into divides two-way to pass through in cooling dome 6 under the action of demarcation strip 603, and by the sampler barrel of corresponding position 101
Bottom is cooled down, and is then discharged from air outlet 602, in order to the cooling liquid of gas working medium in sampler barrel 101.
Embodiment 2
The heat pipe phase-change heat-exchange constant temperature sampling gun of the present embodiment, structure is substantially the same manner as Example 1, further：
The outer surface of sampler barrel 101 is provided with graduation mark.In the present embodiment, according to the scale of 101 outer surface of sampler barrel mark come to heavy
It drops and carries out smoke sampling in stove at different location, facilitate operation.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features；And these modification or
It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (9)
1. sedimentation furnace constant temperature sampling method, it is characterised in that include the following steps：
Step A：Get out heat pipe phase-change heat-exchange constant temperature sampling gun；
Step B：Sampler barrel (102) is stretched into sedimentation furnace to the position for needing to carry out smoke sampling, and is set on the control unit
The temperature preset value of constant temperature sampling, when the temperature value of temperature measuring mechanism detection is more than temperature preset value, control solenoid valve (7) is beaten
It opens, when the temperature value of temperature measuring mechanism detection is equal to temperature preset value, control solenoid valve (7) is closed；
Step C：Flue gas is passed through after the internal through portion of sampler barrel (101) is cooled to assigned temperature in flue gas analyzer (4),
The solid particulate matter that coal dust firing generates in sedimentation furnace is collected by coal tar receiving flask (5).
2. sedimentation furnace constant temperature sampling method according to claim 1 or 2, it is characterised in that：The heat pipe phase-change heat-exchange is permanent
Warm sampling gun includes：
Sampling portion (1), the sampling portion (1) include sampler barrel (101), the sampler barrel (101) include middle part through portion and
Positioned at the toroidal cavity of the through portion surrounding；The outer surface of the toroidal cavity madial wall is fitted with interior mounting ring (109), institute
The inner surface for stating toroidal cavity lateral wall is fitted with outer mounting ring (108)；The interior mounting ring (109) and the outer mounting ring
(108) capillary (104) is respectively provided in；Temperature measuring mechanism is installed at the top of the through portion, the temperature measuring mechanism with
Control unit connects；
Pedestal (2), the sampler barrel (101) are installed on above the pedestal (2), and the through portion of the sampler barrel (101) is downward
Extend through inlet communication of the pedestal (2) afterwards with communicating pipe (3), the outlet of the communicating pipe (3) draw downwards all the way with
Coal tar receiving flask (5) is connected to, and another road direction side in outlet of the communicating pipe (3) is drawn to be connected to flue gas analyzer (4)；
And working medium receiving flask (8), the working medium receiving flask (8) is interior to be filled with working medium；The working medium receiving flask (8) passes through connection
Pipeline is connected to the bottom of the toroidal cavity, and solenoid valve (7) is equipped in the connecting pipe；The control of the solenoid valve (7)
Circuit processed is connect with described control unit.
3. sedimentation furnace constant temperature sampling method according to claim 2, it is characterised in that：The outer mounting ring (108) and institute
The inside for stating interior mounting ring (109) is connected separately with establishment net (105), and vertical side has been fastened at the net knot of the establishment net (105)
To the capillary (104) of setting.
4. sedimentation furnace constant temperature sampling method according to claim 3, it is characterised in that：The outer mounting ring (108) and institute
It states and is connected by several connecting rods (103) between interior mounting ring (109).
5. sedimentation furnace constant temperature sampling method according to claim 4, it is characterised in that：Bottom inside the toroidal cavity
Equipped with bottom saturated ring (102), the bottom saturated ring (102) is the solid material mutually infiltrated with the working medium, the bottom
Saturated ring (102) is equipped with several through-holes；The connecting pipe and the connectivity part of the toroidal cavity are located at bottom saturated ring
(102) on outer circumference surface.
6. sedimentation furnace constant temperature sampling method according to claim 5, it is characterised in that：The outer mounting ring (108) is along it
It is divided into several sections on length direction, outer saturated ring (106) is provided between adjacent two sections of outer mounting rings (108)；The interior installation
Ring (109) along its length on be divided into several sections, adjacent two sections and be provided with interior saturated ring (107) between mounting ring (109)；
The outer saturated ring (106) is the solid material mutually infiltrated with the working medium with the interior saturated ring (107), the outer infiltration
Ring (106) is equipped with several through-holes with the interior saturated ring (107).
7. sedimentation furnace constant temperature sampling method according to claim 6, it is characterised in that：Sampler barrel (101) bottom
Surrounding is covered with cooling dome (6), and one end of the cooling dome (6) is equipped with air inlet (601), the air inlet (601) and the air blast
Machine is connected to, and the other end of the cooling dome (6) is equipped with air outlet (602).
8. sedimentation furnace constant temperature sampling method according to claim 7, it is characterised in that：The cooling dome (6) is internal close
The position of air inlet (601) is equipped with the demarcation strip (603) being vertically arranged, and the air inlet (601) is along the demarcation strip (603)
Place plane is symmetrical.
9. the sedimentation furnace constant temperature sampling method according to claim 2-8 any one, it is characterised in that：The sampler barrel
(101) outer surface is provided with graduation mark.
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