CN209280381U - A kind of gas sampling system of dry powder gasification furnace - Google Patents
A kind of gas sampling system of dry powder gasification furnace Download PDFInfo
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- CN209280381U CN209280381U CN201821917374.XU CN201821917374U CN209280381U CN 209280381 U CN209280381 U CN 209280381U CN 201821917374 U CN201821917374 U CN 201821917374U CN 209280381 U CN209280381 U CN 209280381U
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- gas
- gasification furnace
- dry powder
- sampling system
- knockout drum
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Abstract
The utility model discloses a kind of gas sampling systems for dry powder gasification furnace, it is described to be made of with the sampling part removed water admittedly, sink thermostatic control system is taken off sink, digital temperature meter, the regulating valve of steam condensate and heating system comprising sink thermostatic control system.De- solid system is by removing solid knockout drum, ash can, digital temperature meter and regulating valve being taken to form.Water scavenging system is made of cooler, knockout drum and regulating valve.Gas (moisture content is less than 0.1%) containing seldom moisture " clean gas " finally taken out with sampling steel cylinder.The characteristics of this system is that constant temperature is high-efficient, de- solid and water removal effect is good, and actual motion shows that the utility model samples taken is representative.
Description
Technical field
Originally practical to be related to the detection of gas in coal gasification reaction furnace, and in particular to a kind of gas sample system of dry powder gasification furnace
System.
Background technique
Dry powder gasification furnace is the core equipment of coal chemical technology Coal Gasification Technology, and technical characteristics are: with coal dust, oxygen
Gas and steam premixing, and riser is gradually risen up to air-flow, main gasification reaction is completed in riser.Gasification furnace
Operating pressure is 2.3MPa, by adjusting the ratio (oxygen coal ratio) of oxygen and coal dust amount and ratio (the oxygen vapour of oxygen and steam
Than), the operation temperature that can efficiently control gasification furnace maintains 1000 DEG C or so.The gas sampling system of dry powder gasification furnace is then
It is to the important link in gasification furnace reaction effect appraisement system, since gasification furnace reaction gas is mingled with a large amount of flyash and water
Steam, existing sampling system easily block, and cause gas sample work that can not continue to carry out, it is therefore necessary to dry powder gasification furnace
Gas sampling system is improved or is redesigned.
The gas sampling system and method for dry powder gasification furnace used at present, have the disadvantage that
1) during gas sampled, due to a large amount of flyash of gas inclusions and vapor.Sampling system is caused to be easy
Blocking, the process of sampling can not be normally carried out；
2) synthesis gas taken out contains a large amount of moisture content；
3) process gas temperature is high, and sampling has security risk.
Summary of the invention
The purpose of this utility model is to provide it is a kind of can effectively solve sampling when blocking pipeline and sampling after gas
The gas sampling system of the dry powder gasification furnace of the problem of containing a large amount of water.
In order to achieve the above objectives, the technical solution adopted in the utility model is: including sink thermostatic control system and taking off solid
Remove water sampling system；
The sink thermostatic control system includes heating water tank and removes water sample train admittedly across heating water tank and with de-
Being connected process pipelines except solid knockout drum for system, is sequentially installed with flowmeter, first pressure from direction of flow on process pipelines
Meter and the first digital temperature meter, wherein the first digital temperature meter and heating water tank are connected with constant temperature executing agency；
The de- sampling system of water removal admittedly includes removing solid knockout drum, except the lower end of solid knockout drum is connected with ash can is taken, on
End is connected with recirculation cooler, and recirculation cooler outlet is connected with knockout drum, the sampled tank of air-flow knockout drum upper end outlet
Valve is connected with gas sample tank, and lower end outlet is equipped with liquid emission valve, and pacifies between recirculation cooler and knockout drum
Equipped with the second digital temperature meter, second pressure meter is installed between knockout drum and gas sample tank, the circulation is cold
But device is connected by desalination water inlet, outlet gate valve with desalted water.
The heating water tank also passes through steam condensate gate valve and is connected with steam condensate pipeline.
The first ball valve, the pipeline of the two sides of the first ball valve are also equipped on the process pipelines being located in heating water tank
Pass through the first and second gate valve and CO respectively2Blow line is connected.
The exhaust gas of the process pipelines also passes through process pipelines gate valve and is connected with flare line.
The filter core being arranged except the entrance upper end in solid knockout drum there are two 0.1 micron pore size.
The knockout drum exhaust gas also separates gate valve, the first, second gate valve by air-flow and is connected with flare line.
The exhaust gas of the gas sample tank also passes through sampling jar gate valve, the first, second gate valve is connected with flare line.
Blow valve is also equipped on the second gate valve rear end pipeline.
It is described to be connected except separation upper end admittedly also passes through nitrogen gate valve with low-pressure nitrogen.
The heating water tank bottom is also equipped with drain valve.
The utility model two-step method solves the problems, such as current technology: first step process pipelines enter heating water tank and keep permanent
Temperature；Second step process pipelines enter back into the de- sampling separation system removed water admittedly of band, blocking when thus can effectively solve sampling
The problem of gas after pipeline and sampling contains a large amount of water.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Specific embodiment
The structural principle of the utility model and working principle are described in further details with reference to the accompanying drawing.
Referring to Fig. 1, the utility model includes sink thermostatic control system and de- removes water sampling system admittedly；
The sink thermostatic control system includes heating water tank 31 and takes across heating water tank 31 and with de- solid water removal
Being connected process pipelines except solid knockout drum 18 for sample system, is sequentially installed with the second ball valve from direction of flow on process pipelines
12, flowmeter 13, first pressure meter 14 and the first digital temperature meter 15, wherein the first digital temperature meter 15 and heating water tank
31 are connected with constant temperature executing agency, and heating water tank also passes through steam condensate gate valve 1 and is connected with steam condensate pipeline, are heating
31 bottom of sink is also equipped with drain valve 9, is also equipped with venting ball valve 11 on the process pipelines of heating water tank 31 out, is located at heating
The first ball valve 5 is also equipped on process pipelines in sink, the pipeline of the two sides of the first ball valve 5 passes through the first and second gate valve respectively
2,3 and CO2Blow line is connected；
The de- sampling system of water removal admittedly includes being connected with process pipelines except solid knockout drum 18, except in solid knockout drum 18
Entrance upper end setting there are two 0.1 micron pore size filter core, except the lower end of solid knockout drum 18 is connected with ash can 19 is taken, upper end and
Recirculation cooler 17 is connected, and the outlet of recirculation cooler 17 is connected with knockout drum 21, and 21 upper end outlet of air-flow knockout drum is through taking
Sample pot valve 29 is connected with gas sample tank 28, and lower end outlet is equipped with liquid emission valve 22, and in recirculation cooler 17 and gas-liquid
Second digital temperature meter 20 is installed between knockout drum 21, pressure is installed between knockout drum 21 and gas sample tank 28
Gate valve 26 and second pressure meter 25 are counted, the recirculation cooler 17 passes through desalination water inlet, outlet gate valve 10,4 and desalted water
It is connected, is connected except solid 18 top of knockout drum also passes through nitrogen gate valve 23,30 with low-pressure nitrogen.
The course of work of the utility model is as follows:
The first step is constant temperature: to guarantee to be maintained at 160 DEG C -200 DEG C into the gas temperature except ash can, by except before ash can
The temperature of first digital temperature meter 15 measurement display and transmission synthesis gas, feedback arrive control system, and control system adds to constant temperature
The instruction of hot executing agency is heated, since gasification furnace field device environmental condition limits, actual installation process heating water tank and
It is pipe string connection between sampling cabinet, synthesis gas is caused constantly to reduce from heating water tank to the temperature except ash can, so
It needs to heat it, when being greater than 200 DEG C except 15 measured value of the first digital temperature meter before ash can, thermostatic control system execution is beaten
Steam condensate gate valve 1 is opened, to maintain into the gas temperature except ash can at 160 DEG C -200 DEG C, that is, into except ash can synthesis gas
Vapor be gaseous state, prevent the vapor except ash can from becoming liquid mixing flyash and form the blocking of water coal ash paste except two of ash can
Filter duct；
Step 2: abjection flyash is by except flyash silo 18 after entering the gas removal solid except flyash silo 18
In two 0.1 micron of filter cores complete separation, the solid particulate matter greater than 0.1 micron is deposited in except in ash can, after by taking ash can
19 collect the ash content isolated, and gas and vapor less than 0.1 micron, which enter in filter core, reaches the subsequent cooling of cooler 17
Enter 21 gas of knockout drum after to room temperature state to flow out from the top of knockout drum 21, bottom is the moisture stream in gas
Out, finally with sampling steel cylinder 28 take out gas be containing seldom moisture " clean gas "；
After except a certain amount of flyash is collected in flyash silo 18, read except the flow count value before flyash silo 18
(cumulative amount of time and flow), then low-pressure nitrogen valve 30 is opened, it is sampled with low-pressure nitrogen flyash indentation in ash can is removed
It takes in ash can 19, weighs the quality for taking flyash in ash can 19, that is, be converted into the molar content of flyash in synthesis gas；Then it passes through
Cooler 17 is circulated with desalted water except the gas of flyash silo 18 enters, the temperature of gas is made to be reduced to room temperature.Gas afterwards
Body enters knockout drum 21, separates gas institute's water content and synthesis gas, from knockout drum under drain valve 22 from collect the water of gas
Part simultaneously weighs its quality, then removes the flow count value (cumulative amount of time and flow) before ash can, same to be converted into conjunction
At the molar content of moisture content in gas；It is last that gas sampling steel cylinder is connected in the quick coupling of sampling cabinet simultaneously, it takes out containing only very
The gasification furnace gases of few saturated water.Flare line is removed in exhaust gas discharge in entire sampling process.
Three road exhaust gas drain flow paths are respectively:
The exhaust gas of first via process pipelines is connected by process pipelines gate valve 8 with flare line；
Second road knockout drum, 21 exhaust gas also separates gate valve 24, the first, second gate valve 16,6 and flare stack by air-flow
Line is connected；
The exhaust gas of third road gas sample tank 28 also passes through sampling jar gate valve 27, the first, second gate valve 16,6 and flare stack
Line is connected；
Wherein blow valve 7 is also equipped on 6 rear end pipeline of the second gate valve.
The utility model prevents pipeline from blocking by being provided with high-pressure carbon dioxide purging root valve and place pipeline purpose,
Carry out purging protection.Preferably, thermostatically controlled sink is set, eliminates water vapour and condenses into water in low temperature, be more advantageous to water
Steam and flyash separation.Purge CO2The CO being passed through in blow line2It is 100-140 DEG C for 3.0-3.5MPa, temperature.Pass through this
A little measures guarantee that sampling flyash, moisture, gas component are free of contamination, representative.
Claims (10)
1. a kind of gas sampling system of dry powder gasification furnace, it is characterised in that: including sink thermostatic control system and de- solid water removal
Sampling system；
The sink thermostatic control system includes heating water tank (31) and passes through heating water tank (31) and take with de- solid water removal
Sample system removes the process pipelines that are connected admittedly knockout drum (18), is sequentially installed with flowmeter from direction of flow on process pipelines
(13), first pressure meter (14) and the first digital temperature meter (15), wherein the first digital temperature meter (15) and heating water tank
(31) it is connected with constant temperature executing agency；
The de- sampling system of water removal admittedly includes removing the lower end of solid knockout drum (18) except solid knockout drum (18) and taking ash can (19)
It is connected, upper end is connected with recirculation cooler (17), and recirculation cooler (17) outlet is connected with knockout drum (21), gas-liquid separation
The sampled pot valve of tank (21) upper end outlet (29) is connected with gas sample tank (28), and lower end outlet is equipped with liquid emission valve
(22), it and between recirculation cooler (17) and knockout drum (21) is equipped with the second digital temperature meter (20), gas-liquid point
From second pressure meter (25) are equipped between tank (21) and gas sample tank (28), the recirculation cooler (17) passes through desalination
Water inlet, outlet gate valve (10,4) are connected with desalted water.
2. the gas sampling system of dry powder gasification furnace according to claim 1, it is characterised in that: the heating water tank is also
It is connected by steam condensate gate valve (1) with steam condensate pipeline.
3. the gas sampling system of dry powder gasification furnace according to claim 1, it is characterised in that: described is located at heating water
It is also equipped on process pipelines in slot the first ball valve (5), the pipeline of the two sides of the first ball valve (5) passes through the first and second lock respectively
Valve (2,3) and CO2Blow line is connected.
4. the gas sampling system of dry powder gasification furnace according to claim 1, it is characterised in that: the process pipelines
Exhaust gas also passes through process pipelines gate valve (8) and is connected with flare line.
5. the gas sampling system of dry powder gasification furnace according to claim 1, it is characterised in that: described removes solid knockout drum
(18) there are two the filter cores of 0.1 micron pore size for the entrance upper end setting in.
6. the gas sampling system of dry powder gasification furnace according to claim 1, it is characterised in that: the knockout drum
(21) exhaust gas is also connected by air-flow separation gate valve (24), the first, second gate valve (16,6) with flare line.
7. the gas sampling system of dry powder gasification furnace according to claim 1, it is characterised in that: the gas sample tank
(28) exhaust gas also passes through sampling jar gate valve (27), the first, second gate valve (16,6) is connected with flare line.
8. the gas sampling system of dry powder gasification furnace according to claim 6 or 7, it is characterised in that: second lock
Blow valve (7) are also equipped on the pipeline of valve (6) rear end.
9. the gas sampling system of dry powder gasification furnace according to claim 1, it is characterised in that: described removes solid knockout drum
(18) top also passes through nitrogen gate valve (23,30) and is connected with low-pressure nitrogen.
10. the gas sampling system of dry powder gasification furnace according to claim 1, it is characterised in that: the heating water tank
(31) bottom is also equipped with drain valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821917374.XU CN209280381U (en) | 2018-11-21 | 2018-11-21 | A kind of gas sampling system of dry powder gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821917374.XU CN209280381U (en) | 2018-11-21 | 2018-11-21 | A kind of gas sampling system of dry powder gasification furnace |
Publications (1)
| Publication Number | Publication Date |
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| CN209280381U true CN209280381U (en) | 2019-08-20 |
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| CN201821917374.XU Active CN209280381U (en) | 2018-11-21 | 2018-11-21 | A kind of gas sampling system of dry powder gasification furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987543A (en) * | 2019-12-24 | 2020-04-10 | 陕西延长石油（集团）有限责任公司 | Automatic sampling device and method for high-temperature high-pressure dust-containing gas |
-
2018
- 2018-11-21 CN CN201821917374.XU patent/CN209280381U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987543A (en) * | 2019-12-24 | 2020-04-10 | 陕西延长石油（集团）有限责任公司 | Automatic sampling device and method for high-temperature high-pressure dust-containing gas |
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