CN207396136U - A kind of hot type sampling gun for preventing cool solidifying refluence - Google Patents
A kind of hot type sampling gun for preventing cool solidifying refluence Download PDFInfo
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- CN207396136U CN207396136U CN201721191398.7U CN201721191398U CN207396136U CN 207396136 U CN207396136 U CN 207396136U CN 201721191398 U CN201721191398 U CN 201721191398U CN 207396136 U CN207396136 U CN 207396136U
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- sampling
- refluence
- hot type
- heating
- filter membrane
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Abstract
The utility model belongs to atmosphere pollution minimum discharge technical field of measurement and test, more particularly to a kind of hot type sampling gun for preventing cool solidifying refluence suitable for the outlet of Desulphurization for Coal-fired Power Plant tower, wet electrical dust precipitator entry and exit and total row's mouth smoke dust sampling, including sampling head, described sampling head one end is connected with sampling membrane, the other end, which is connected with, adopts dirt pipe, the filter membrane heating rod heated to the sampling membrane is equipped in the sampling head, the dirt pipe external spiral of adopting is disposed with for the heating tape for adopting the heating of dirt pipe.The utility model is simple in structure, easy to operate, can be connected with a variety of sampling instruments, can be good at filter membrane leakage problem caused by solving the problems, such as high humidity, low temperature and condensate return pollution filter membrane.
Description
Technical field
The utility model belongs to atmosphere pollution minimum discharge technical field of measurement and test more particularly to one kind is suitable for coal-fired electricity
The hot type sampling gun for preventing cool solidifying refluence of the outlet of factory's desulfurizing tower, wet electrical dust precipitator entry and exit and total row's mouth smoke dust sampling.
Background technology
National Development and Reform Committee issues within 2014《The energy-saving and emission-reduction of coal electricity upgrade and transformation action plan》It is required that smoke dust discharge concentration
≤ 10mg/m3, the smoke dust discharge concentration≤5mg/m3 in some importance area.In order to should be to harsh environmental protection policy, it is necessary to carry out
Minimum discharge is transformed, while typically carrying out renovation and improving to original deduster, using the Technology of Integrating Desulfurization to de-
The mode that sulphur tower was transformed or increased between desulfurizing tower and chimney wet electrical dust precipitator is transformed, and process is improved
Smoke dust discharge concentration can meet the emission request of 5mg/Nm3.
Traditional filter cylinder method has not been suitable for low concentration (5mg/Nm3) emission measurement requirement under the new situation, the prior art
Mostly it is to be sampled at desulfurizing tower outlet, wet electrical dust precipitator entry and exit, total row's mouth using filter membrane.At these sampling locations
, 15% or so, easily there is filter membrane leakage, condensed water in 50 DEG C, humidity under conditions of this high humidity, low temperature in flue-gas temperature
The problem of pollution filter membrane, is flow backwards in condensation.Therefore, there is an urgent need for a kind of suitable for high humility, the heating for preventing cool solidifying refluence of low temperature flue gas
Type sampling gun, to improve sampling efficiency and sampling accuracy.
Utility model content
The purpose of this utility model be to provide it is a kind of be suitable for the outlet of Desulphurization for Coal-fired Power Plant tower, wet-esp entry and exit,
Total row's mouth flue gas high humility, the hot type sampling gun for preventing cool solidifying refluence of low temperature smoke dust sampling, to solve high humidity, low temperature causes
Filter membrane leakage problem and condensate return pollution filter membrane problem.
The utility model provides a kind of hot type sampling gun for preventing cool solidifying refluence, and including sampling head, sampling head one end connects
Sampling membrane is connected to, the other end, which is connected with, adopts dirt pipe, and the filter membrane heating rod heated to sampling membrane is equipped in sampling head, is adopted
Dirt pipe external spiral is disposed with for the heating tape for adopting the heating of dirt pipe.
Further, sealing ring and support ring are equipped between sampling head and sampling membrane.
Further, sampling head and adopting is respectively provided with the level-one retention ring of returned cold condensate in retention flue gas in dirt pipe
And second entrapment ring.
Further, level-one retention ring and second entrapment ring along sampling head inner wall and adopt dirt inside pipe wall respectively, are adopted to separate
Sample filter membrane direction is in tilted layout.
Further, filter membrane heating rod is connected with filter membrane heating rod casing.
Further, which further includes and adopts dirt pipe parallel arrangement for measuring the S types Pitot tube and and S of flue gas flow
Type Pitot tube is close to arrangement for measuring the thermocouple of flue-gas temperature.
Further, filter membrane heating rod casing, adopt dirt pipe, S types Pitot tube and thermocouple and be externally provided with casing.
Further, sampling membrane is fixedly connected by pressure ring, bezel ring, with sampling head.
Further, filter membrane heating rod and heating tape are connected respectively by heating rod interface and heating tape interface with heating power supply
It connects.
Further, dynamic pressure hose connection, the static pressure which further includes for being connected with external smoke dust sampling instrument are soft
Interface tube and adopt dirt hose connection.
According to the above aspect of the present invention, by prevent cool solidifying refluence hot type sampling gun, it is simple in structure, it is easy to operate, can with it is a variety of
Sampling instrument connects, and can be good at filter membrane leakage problem caused by solving high humidity, low temperature and condensate return pollution filter membrane is asked
Topic.
Above description is only the general introduction of technical solutions of the utility model, in order to better understand the skill of the utility model
Art means, and being practiced according to the content of specification with the preferred embodiment of the utility model and coordinate attached drawing detailed below
It describes in detail bright as after.
Description of the drawings
Fig. 1 is a kind of first view of the hot type sampling gun for preventing cool solidifying refluence of the utility model；
Fig. 2 is a kind of second view of the hot type sampling gun for preventing cool solidifying refluence of the utility model；
Fig. 3 is a kind of structure diagram for the hot type sampling gun sampling head for preventing cool solidifying refluence of the utility model；
Fig. 4 is a kind of structure diagram for the hot type sampling gun sampling membrane for preventing cool solidifying refluence of the utility model；
Fig. 5 is a kind of schematic cross-section for the hot type sampling gun for preventing cool solidifying refluence of the utility model.
Figure label：
1- sampling heads；2- sampling membranes；3- filter membrane heating rods；4- support rings；5- sealing rings；6- pressure rings；7- bezel ring,s；8- is adopted
Dirt pipe；9- level-ones retain ring；10- second entrapment rings；11-S type Pitot tubes；12- thermocouples；13- filter membrane heating rod casings；14-
Heating tape；15- casings；16- dynamic pressure hose connections；17- static pressure hose connections；18- heating rod interfaces；19- heating tape interfaces；
20- adopts dirt hose connection.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Join and shown in Fig. 1 to Fig. 5, present embodiments provide a kind of hot type sampling gun for preventing cool solidifying refluence, including sampling head
1st, sampling membrane 2, filter membrane heating rod 3, support ring 4, sealing ring 5, pressure ring 6, bezel ring, 7, adopt dirt pipe 8, level-one retention ring 9, two level
Retain ring 10, S types Pitot tube 11, thermocouple 12, filter membrane heating rod casing 13, heating tape 14, casing 15, dynamic pressure hose connection
16th, static pressure hose connection 17, heating rod interface 18, heating tape interface 19, adopt dirt hose connection 20.
Filter membrane heating rod 3, support ring 4, sealing ring 5, level-one retention ring 9 are equipped in sampling head 1, passes through filter membrane heating rod 3
The temperature of sampling membrane 2 can be heated to 130 DEG C, to reduce filter membrane humidity, reduce filter membrane Leakage probability.Filter membrane heating rod set
Pipe 13 is connected with filter membrane heating rod 3, for protecting filter membrane heating rod 3.
The width of level-one retention ring 9 is 2cm, with 1 inner wall of sampling head into 30 ° of arrangements, to retain in flue gas along sampling head
The condensed water that inner wall flows down prevents condensing reflux water pollution filter membrane.
Sampling membrane 2 is installed in 1 one end of sampling head (front end), will sampling in the form of threaded connection by pressure ring 6, bezel ring, 7
Filter membrane 2 is fixedly connected with sampling head 1, and 1 other end of sampling head (rear end) is connected with adopting dirt pipe 8 and filter membrane heating rod casing 13.It adopts
Sealing ring 5 between sample first 1 and sampling membrane 2 is set, ensures the air-tightness of device, prevents from adopting smoke spillage during dirt.
S types Pitot tube 11 is arranged in parallel with adopting dirt pipe 8, and for measuring flue gas flow, thermocouple 12 is close to S types Pitot tube 11
Arrangement, for measuring flue-gas temperature.
Adopt and second entrapment ring 10 be equipped in dirt pipe 8, the width of second entrapment ring 10 for 1.5cm, with the inner wall of sampling head 1 into
30 ° of arrangements, second entrapment ring 10 can reduce the condensing capacity into level-one retention ring 9, be further ensured that rejection effect.
8 external spiral of dirt pipe arrangement heating tape 14 is adopted, 130 DEG C is heated to for 8 temperature of dirt pipe will to be adopted, reduces condensation water quantity.
It is adopting dirt pipe 8, thermocouple 12, filter membrane heating rod casing 13, casing 15 is set outside S types Pitot tube 11, for protecting
Heating tape 14 and dirt pipe 8 is adopted, prevent smoke pollution heating tape 14.
Filter membrane heating rod 3 and heating tape are connected respectively by heating rod interface 18 and heating tape interface 19 with heating power supply,
It heats respectively, ensure sampling membrane 2 and adopts the control of 8 temperature of dirt pipe at 130 DEG C..
When replacing sampling membrane 2 every time, this is prevented that the hot type sampling gun of cool solidifying refluence is inverted, is cut in two-stage retention ring
The condensed water of stream can be flowed out from the outlet of dirt pipe 8 is adopted.
It arranges dynamic pressure hose connection 16, static pressure hose connection 17 and adopts dirt hose connection 20, hose and a variety of cigarettes can be passed through
Dirt sampling instrument connects.
The hot type sampling gun provided in this embodiment for preventing cool solidifying refluence, has the following technical effect that：
1) sealing ring is equipped between sampling membrane and sampling head, can be very good to ensure the air-tightness of device, prevent from adopting
Smoke spillage during dirt causes sampling volume to calculate inaccurate, ensure that the accuracy of sampling.
2) to sampling membrane and adopt dirt pipe respectively using filter membrane heating rod and heating tape and heat, maintain sampling membrane with
Sampling pipe temperature can substantially reduce sampling membrane humidity and adopt condensation water quantity in dirt pipe, two kinds of heating units at 130 degrees Celsius
Independent operating individually controls, and ensures heating unit more stable operation.
3) two-stage retention ring is set in dirt pipe in sampling head and adopting, the condensed water during dirt, shutoff ring and tube wall are adopted in retention
In 30 ° of arrangements, two-stage retention ring may insure that condensed water is all shut off during adopting dirt, when replacing sampling membrane every time,
Sampling gun is inverted, the condensed water retained in two-stage retention ring can empty retention ring internal water accumulation, behaviour from dirt pipe outlet outflow is adopted
Make very convenient.
4) sampling gun is equipped with thermocouple, can accurately measure flue-gas temperature.
5) sampling gun can be connected with a variety of sampling instruments, flexibility and reliability.
The above is only the preferred embodiment of the utility model, is not intended to limit the utility model, it is noted that
For those skilled in the art, on the premise of the utility model technical principle is not departed from, can also do
Go out several improvement and modification, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of hot type sampling gun for preventing cool solidifying refluence, which is characterized in that including sampling head, described sampling head one end is connected with
Sampling membrane, the other end, which is connected with, adopts dirt pipe, and the filter membrane heating heated to the sampling membrane is equipped in the sampling head
Stick, the dirt pipe external spiral of adopting are disposed with for the heating tape for adopting the heating of dirt pipe.
2. it is according to claim 1 it is a kind of prevent cool solidifying refluence hot type sampling gun, which is characterized in that the sampling head with
Sealing ring and support ring are equipped between the sampling membrane.
3. it is according to claim 2 it is a kind of prevent cool solidifying refluence hot type sampling gun, which is characterized in that the sampling head and
It adopts and the level-one retention ring of returned cold condensate in retention flue gas and second entrapment ring is respectively provided in dirt pipe.
A kind of 4. hot type sampling gun for preventing cool solidifying refluence according to claim 3, which is characterized in that the level-one retention
Ring and second entrapment ring along the sampling head inner wall and adopt dirt inside pipe wall respectively, and cloth is tilted to away from the sampling membrane direction
It puts.
A kind of 5. hot type sampling gun for preventing cool solidifying refluence according to claim 4, which is characterized in that the filter membrane heating
Stick is connected with filter membrane heating rod casing.
6. it is according to claim 5 it is a kind of prevent cool solidifying refluence hot type sampling gun, which is characterized in that further include with it is described
It adopts dirt pipe parallel arrangement and arranges to measure cigarette for measuring the S types Pitot tube of flue gas flow and with the S types Pitot tube being close to
The thermocouple of temperature degree.
A kind of 7. hot type sampling gun for preventing cool solidifying refluence according to claim 6, which is characterized in that the filter membrane heating
Stick casing adopts dirt pipe, S types Pitot tube and thermocouple and is externally provided with casing.
A kind of 8. hot type sampling gun for preventing cool solidifying refluence according to claim 7, which is characterized in that the sampling membrane
It is fixedly connected by pressure ring, bezel ring, with the sampling head.
A kind of 9. hot type sampling gun for preventing cool solidifying refluence according to claim 8, which is characterized in that the filter membrane heating
Stick and heating tape are connected respectively by heating rod interface and heating tape interface with heating power supply.
10. a kind of hot type sampling gun for preventing cool solidifying refluence according to claim 9, which is characterized in that further include and be used for
The dynamic pressure hose connection that is connected with external smoke dust sampling instrument, static pressure hose connection and adopt dirt hose connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721191398.7U CN207396136U (en) | 2017-09-18 | 2017-09-18 | A kind of hot type sampling gun for preventing cool solidifying refluence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721191398.7U CN207396136U (en) | 2017-09-18 | 2017-09-18 | A kind of hot type sampling gun for preventing cool solidifying refluence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207396136U true CN207396136U (en) | 2018-05-22 |
Family
ID=62404557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721191398.7U Expired - Fee Related CN207396136U (en) | 2017-09-18 | 2017-09-18 | A kind of hot type sampling gun for preventing cool solidifying refluence |
Country Status (1)
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| CN (1) | CN207396136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677515A (en) * | 2017-09-18 | 2018-02-09 | 大唐东北电力试验研究所有限公司 | A kind of hot type sampling gun for preventing cool solidifying refluence |
-
2017
- 2017-09-18 CN CN201721191398.7U patent/CN207396136U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677515A (en) * | 2017-09-18 | 2018-02-09 | 大唐东北电力试验研究所有限公司 | A kind of hot type sampling gun for preventing cool solidifying refluence |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 Termination date: 20190918 |