CN219201007U - Flue gas sampling device and flue gas analysis system with same - Google Patents
Flue gas sampling device and flue gas analysis system with same Download PDFInfo
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- CN219201007U CN219201007U CN202222901743.9U CN202222901743U CN219201007U CN 219201007 U CN219201007 U CN 219201007U CN 202222901743 U CN202222901743 U CN 202222901743U CN 219201007 U CN219201007 U CN 219201007U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model provides a smoke sampling device and a smoke analysis system with the same, wherein the smoke sampling device comprises: the flue gas pipeline comprises a first flue gas inlet, and the opening direction of the first flue gas inlet is consistent with the preset direction; the cooling device comprises a cooling box body, the cooling box body defines a heat exchange cavity, the cooling box body comprises a heat exchange medium inlet and a heat exchange medium outlet, the heat exchange medium inlet and the heat exchange medium outlet are communicated with the heat exchange cavity, the flue gas pipeline penetrates through the cooling box body, and a part of the flue gas pipeline is located in the heat exchange cavity. The flue gas sampling device can reduce the temperature of flue gas and enable the detection device to normally operate.
Description
Technical Field
The utility model relates to the technical field of detection equipment, in particular to a smoke sampling device and a smoke analysis system with the same.
Background
A great amount of flue gas is generated in the primary energy utilization process, and the flue gas contains conventional atmospheric pollutants including sulfur oxides, nitrogen oxides, aerosol and the like. At present, the detection of the atmospheric pollutants in a low-temperature area is realized in China, but the detection of the pollutants in high-temperature high-dust smoke is difficult to realize. The temperature of the common flue gas is below 200 ℃, and the collection and detection of the flue gas pollutants can be basically realized. The high-temperature flue gas is generally at 200-1100 ℃, the dust concentration is above 10g/m < 3 >, and the detection device in the related art cannot work in such high-temperature and high-dust environment, so that the components of the flue gas cannot be analyzed.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems in the related art to some extent.
Therefore, the embodiment of the utility model provides a smoke sampling device which can reduce the temperature of smoke and enable a detection device to normally operate.
The flue gas sampling device of the embodiment of the utility model comprises: the flue gas pipeline comprises a first flue gas inlet, and the opening direction of the first flue gas inlet is consistent with the preset direction; the cooling device comprises a cooling box body, the cooling box body is used for defining a heat exchange cavity, the cooling box body comprises a heat exchange medium inlet and a heat exchange medium outlet, the heat exchange medium inlet and the heat exchange medium outlet are communicated with the heat exchange cavity, the flue gas pipeline penetrates through the cooling box body, and a part of the flue gas pipeline is located in the heat exchange cavity.
The smoke sampling device provided by the embodiment of the utility model utilizes the cooling device to exchange heat and cool the collected high-temperature smoke, so that the temperature of the high-temperature smoke is reduced to a temperature range in which the smoke detection device can normally work, normal detection of the smoke is realized, and the accuracy of a detection result is ensured.
In some embodiments, the flue gas duct comprises a first section having the first inlet and the first section being located outside the cooling box, and a second section located in the heat exchange chamber, the second section having an extension direction coincident with the first direction, the second section comprising a second inlet and a first outlet opposite in the first direction, the first section communicating with the second section through the second inlet.
In some embodiments, the heat exchange cavity comprises a first heat exchange cavity and a second heat exchange cavity, the first heat exchange cavity and the second heat exchange cavity are opposite in the first direction, the first heat exchange cavity is adjacent to the second smoke inlet relative to the second heat exchange cavity in the first direction, the cooling box comprises an air inlet and an air outlet, the air inlet and the air outlet are communicated with the first heat exchange cavity, the cooling box further comprises a water inlet and a water outlet, and the water inlet and the water outlet are communicated with the second heat exchange cavity.
In some embodiments, the air inlet and the air outlet are spaced apart in the first direction; and/or the water inlet and the water outlet are arranged at intervals in the first direction.
In some embodiments, the cooling box further comprises: the first end cover, the second end cover, division board and enclosure wall, the enclosure wall includes first end and the second end that is in opposite in the first direction, first end cover with first end links to each other, the second end cover with the second end links to each other, inject between first end cover, the second end cover and the enclosure wall heat exchange cavity, the division board is established in the enclosure wall and with the heat exchange cavity separates to form first heat exchange cavity and second heat exchange cavity, be equipped with first through-hole on the first end cover, be equipped with the second through-hole on the second end cover, be equipped with the third through-hole on the division board, flue gas pipeline passes first through-hole, second through-hole and third through-hole, just the second inlet with first through-hole corresponds, first outlet flue with the second through-hole corresponds.
In some embodiments, the cooling device further comprises: the air cooling partition plates are arranged in the first heat exchange cavity, the air cooling partition plates are arranged at intervals in the first direction, each air cooling partition plate is provided with a first notch, the second sections sequentially penetrate through the air cooling partition plates, the outer contour of each air cooling partition plate is matched with the inner wall surface of the first heat exchange cavity, the adjacent first notches in the air cooling partition plates are arranged at intervals in the second direction, and the second direction is perpendicular to the first direction.
In some embodiments, the cooling device further comprises: the water cooling partition plates are arranged in the water cooling channels, the water cooling partition plates are arranged at intervals in the first direction, each water cooling partition plate is provided with a second notch, the second section sequentially penetrates through the water cooling partition plates, the outer contour of each water cooling partition plate is matched with the inner wall surface of the second heat exchange cavity, the second notches on the adjacent water cooling partition plates are arranged at intervals in the second direction, and the second direction is perpendicular to the first direction.
In some embodiments, the radial dimension of the first smoke inlet satisfies:
D＝(4V/πu) 1/2 ，
wherein D is the radial dimension of the first smoke inlet; v is the volume of the flue gas to be collected; u is the flue gas flow rate.
In some embodiments, the flue gas sampling apparatus further comprises: the pressure difference measuring device comprises a pressure difference measurer, a first smoke inlet pipe and a second smoke inlet pipe, wherein a third smoke inlet is formed in one end of the first smoke inlet pipe, the other end of the first smoke inlet pipe is communicated with the pressure difference measurer, the third smoke inlet is consistent with the opening direction of the first smoke inlet, a fourth smoke inlet is formed in one end of the second smoke inlet pipe, the other end of the second smoke inlet pipe is communicated with the pressure difference measurer, and the opening direction of the fourth smoke inlet is deviated from the opening direction of the third smoke inlet.
The flue gas analysis system of the embodiment of the utility model comprises: the flue gas sampling device is the flue gas sampling device according to any one of the embodiments; the condensing device comprises a condenser and a collecting water tank, wherein the condenser comprises a fourth smoke inlet, a second smoke outlet and a condensed water outlet, the collecting water tank comprises a condensed water inlet, the condensed water outlet is communicated with the condensed water inlet, the fourth smoke inlet is communicated with the first smoke outlet, the smoke analyzer comprises a fifth smoke inlet, and the second smoke outlet is communicated with the fifth smoke inlet.
Drawings
Fig. 1 is a schematic structural diagram of a smoke sampling apparatus according to an embodiment of the present utility model.
Fig. 2 is a schematic structural view of an air-cooled separator according to an embodiment of the present utility model.
Fig. 3 is a schematic view of a water-cooled separator according to an embodiment of the present utility model.
Reference numerals:
a flue gas analysis system 1000;
a flue gas sampling apparatus 100;
a flue gas duct 1; a first section 11; a first smoke inlet 111; a second section 12; a second smoke inlet 121; a first smoke outlet 122;
a cooling device 2; a heat exchange chamber 20; a first heat exchange chamber 201; a second heat exchange chamber 202; water cooling channel 2021; a water return channel 2022; a cooling box 21; a heat exchange medium inlet 211; a heat exchange medium outlet 212; a surrounding wall 213; an air inlet 2131; an air outlet 2132; a water inlet 2133; a water outlet 2134; a first end 2135; a second end 2136; a first end cap 214; a second end cap 215; a partition plate 216; an air-cooled partition plate 22; a first notch 221; a water-cooled partition plate 23; a second notch 231; a mounting plate 24; a return water port 241;
a differential pressure measuring device 3; a differential pressure measurer 31; a first smoke inlet pipe 32; a third smoke inlet 321; a second smoke inlet pipe 33; a fourth smoke inlet 331;
a flue gas analyzer 200; a fifth smoke inlet 2001; a condensing unit 300; a condenser 301; a collection trough 302; a fourth smoke inlet 3011; a second smoke outlet 3012; a condensed water outlet 3013; a condensate inlet 3021.
Detailed Description
Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
A smoke sampling apparatus 100 according to an embodiment of the present utility model will be described below with reference to the accompanying drawings.
As shown in fig. 1-3, a flue gas sampling apparatus 100 according to an embodiment of the present utility model includes a flue gas duct 1 and a cooling apparatus 2.
The flue gas duct 1 comprises a first flue gas inlet 111, and the opening direction of the first flue gas inlet 111 is consistent with the preset direction. The preset direction is a flow direction of the flue gas in the tested flue, and an opening direction of the first flue gas inlet 111 faces a direction in which the flue gas blows, for example, as shown in fig. 1, the flue gas flows from bottom to top, and an opening direction of the first flue gas inlet 111 faces downward.
The cooling device 2 comprises a cooling box body 21, the cooling box body 21 defines a heat exchange cavity 20, the cooling box body 21 comprises a heat exchange medium inlet 211 and a heat exchange medium outlet 212, the heat exchange medium inlet 211 and the heat exchange medium outlet 212 are communicated with the heat exchange cavity 20, the flue gas pipeline 1 penetrates through the cooling box body 21, and a part of the flue gas pipeline 1 is located in the heat exchange cavity 20.
The sampling process of the smoke sampling apparatus 100 according to the embodiment of the present utility model will be described below with reference to the accompanying drawings.
The high-temperature flue gas in the tested flue enters the flue gas pipeline 1 from the first flue gas inlet 111, and when the high-temperature flue gas flows through the part of the flue gas pipeline 1 located in the heat exchange cavity 20, the high-temperature flue gas exchanges heat with the heat exchange medium in the heat exchange cavity 20, so that the temperature of the high-temperature flue gas is reduced. The heat exchange medium enters the heat exchange cavity 20 from the heat exchange medium inlet 211, exchanges heat with the high-temperature flue gas in the flue gas pipeline 1 in the heat exchange cavity 20, and is discharged from the heat exchange medium outlet 212.
The flue gas sampling device 100 of the embodiment of the utility model utilizes the cooling device 2 to exchange heat and cool the collected high-temperature flue gas, so that the temperature of the high-temperature flue gas is reduced to a temperature range in which the flue gas detection device can normally work, thereby realizing normal detection of the flue gas and ensuring the accuracy of a detection result.
For easier understanding of the solution of the present application, the smoke sampling apparatus 100 according to the embodiment of the present utility model will be described in detail below by taking the example that the first direction coincides with the left-right direction and the second direction coincides with the up-down direction, wherein the first direction is perpendicular to the second direction.
The flue gas sampling device 100 of the embodiment of the utility model comprises a flue gas pipeline 1, a cooling device 2 and a differential pressure measuring device 3.
In some embodiments, as shown in fig. 1, the flue gas duct 1 includes a first section 11 and a second section 12, the first section 11 has a first flue gas inlet 111 and the first section 11 is located outside the cooling box 21, the second section 12 is located in the heat exchange chamber 20, the extending direction of the second section 12 coincides with the left-right direction, the second section 12 includes a second flue gas inlet 121 and a first flue gas outlet 122 opposite in the left-right direction, and the first section 11 communicates with the second section 12 through the second flue gas inlet 121.
In other words, when the high-temperature flue gas flows through the second section 12, the high-temperature flue gas exchanges heat with the heat exchange medium in the heat exchange cavity 20, so that the temperature of the high-temperature flue gas is reduced to a temperature range in which the flue gas detection device can normally work, normal detection of the flue gas is realized, and the accuracy of a detection result is ensured.
In some embodiments, as shown in fig. 1, the heat exchange cavity 20 includes a first heat exchange cavity 201 and a second heat exchange cavity 202, the first heat exchange cavity 201 and the second heat exchange cavity 202 are opposite in a first direction, and the first heat exchange cavity 201 is adjacent to the second smoke inlet 121 in a left-right direction relative to the second heat exchange cavity 202. In other words, the first heat exchange cavity 201 is located at the left side of the second heat exchange cavity 202, and when the flue gas flows through the second section 12, the flue gas exchanges heat with the heat exchange medium in the first heat exchange cavity 201 before exchanging heat with the heat exchange medium in the second heat exchange cavity 202.
The cooling box 21 comprises an air inlet 2131 and an air outlet 2132, the air inlet 2131 and the air outlet 2132 are both communicated with the first heat exchange cavity 201, the cooling box 21 further comprises a water inlet 2133 and a water outlet 2134, and the water inlet 2133 and the water outlet 2134 are both communicated with the second heat exchange cavity 202.
In the process that the flue gas flows through the second section 12, external air enters the first heat exchange cavity 201 through the air inlet 2131, and exchanges heat with the high-temperature flue gas in the second section 12, so that the high-temperature flue gas is cooled once, and the air after heat exchange is discharged to the outside through the air outlet 2132. External water enters the second heat exchange cavity 202 through the water inlet 2133 and exchanges heat with the high-temperature flue gas in the second section 12, so that the high-temperature flue gas is cooled for the second time, and the water after heat exchange is discharged to the outside through the water outlet 2134.
Compared with water, the air has lower heat exchange efficiency, so that the cooling speed of high-temperature flue gas is not too high, and the flue gas sampling device 100 of the embodiment of the utility model is prevented from deforming due to too high cooling. And after the primary cooling, the secondary cooling is performed through heat exchange with water, so that the temperature of the smoke can be guaranteed to be reduced to a temperature range in which the smoke detection device can normally work.
In some implementations, as shown in fig. 1, the air inlet 2131 and the air outlet 2132 are spaced apart in the left-right direction, so as to ensure that air enters the first heat exchange cavity 201 and can fully contact the second section 12, thereby ensuring heat exchange efficiency of the air and the high-temperature flue gas. The water inlet 2133 and the water outlet 2134 are arranged at intervals in the left-right direction, thereby ensuring that air enters the first heat exchange cavity 201 and can fully contact with the second section 12, and further ensuring the heat exchange efficiency of the air and the high-temperature flue gas.
Specifically, the cooling tank 21 includes a first end cap 214, a second end cap 215, a partition plate 216, and a surrounding wall 213, the surrounding wall 213 includes a first end 2135 and a second end 2136 opposite in the left-right direction, the first end cap 214 is connected to the first end 2135, the second end cap 215 is connected to the second end 2136, a heat exchange chamber 20 is defined between the first end cap 214, the second end cap 215, and the surrounding wall 213, and the partition plate 216 is provided in the surrounding wall 213 and partitions the heat exchange chamber 20 to form the first heat exchange chamber 201 and the second heat exchange chamber 202. In other words, the first end cap 214, the partition plate 216 and the surrounding wall 213 define a first heat exchange chamber 201 therebetween, and the second end cap 215, the partition plate 216 and the surrounding wall 213 define a second heat exchange chamber 202 therebetween.
The first end cover 214 is provided with a first through hole, the second end cover 215 is provided with a second through hole, the partition plate 216 is provided with a third through hole, the flue gas pipeline 1 passes through the first through hole, the second through hole and the third through hole, the second flue gas inlet 121 corresponds to the first through hole, and the first flue gas outlet 122 corresponds to the second through hole.
In some embodiments, as shown in fig. 1 and 2, the cooling device 2 further includes a plurality of air-cooled partition plates 22, where the plurality of air-cooled partition plates 22 are disposed in the first heat exchange cavity 201, and the plurality of air-cooled partition plates 22 are disposed at intervals in the left-right direction, each air-cooled partition plate 22 has a first notch 221, and the second section 12 sequentially penetrates through the plurality of air-cooled partition plates 22. The outer contour of each air-cooled partition 22 is adapted to the inner wall surface of the first heat exchange cavity 201, for example, the inner wall surface of the first heat exchange cavity 201 is a cylindrical surface, and the outer contour of each air-cooled partition 22 is a circle attached to the curved surface of the first heat exchange cavity 201. The first notches 221 on adjacent air-cooled partition plates 22 are arranged at intervals in the vertical direction.
After the air enters the first heat exchange chamber 201, the air is blocked by the air-cooled partitions 22, and can only pass through the first notch 221 on each air-cooled partition 22 and flow to the adjacent air-cooled partition 22. The first notches 221 of the adjacent air-cooled partitions 22 are spaced apart in the vertical direction, so that the travelling distance of air in the process of flowing from the air inlet 2131 to the air outlet 2132 is greatly increased, the heat exchange time of the air and the high-temperature flue gas is further increased, and the heat exchange efficiency is further improved.
In some embodiments, as shown in fig. 1 and 3, the cooling device 2 further includes a plurality of water cooling partitions 23 and a mounting plate 24, the mounting plate 24 is connected to the inner surface of the second end 2136 plate and the inner wall surface of the second heat exchange cavity 202, the mounting plate 24 partitions the second heat exchange cavity 202 into a water cooling channel 2021 and a water return channel 2022, and the mounting plate 24 is provided with a water return port 241.
The plurality of water-cooling partitions 23 are disposed in the water-cooling channel 2021, and the plurality of water-cooling partitions 23 are disposed at intervals in the left-right direction, each water-cooling partition 23 has a second notch 231, the second section 12 sequentially penetrates through the plurality of water-cooling partitions 23, an outer contour of each water-cooling partition 23 is adapted to an inner wall surface of the second heat exchange cavity 202, for example, the inner wall surface of the second heat exchange cavity 202 is a cylindrical surface, and an outer contour of each water-cooling partition 23 is a circle attached to a curved surface of the second heat exchange cavity 202. The second notches 231 on the adjacent water-cooled partition plates 23 are provided at intervals in the up-down direction.
After the water enters the first heat exchange cavity 201, the water is blocked by the water-cooling partition plates 23 so that the water can only pass through the second notch 231 on each water-cooling partition plate 23, flows to the adjacent water-cooling partition plate 23, flows into the water return channel 2022 from the water return port 241 after heat exchange, and is discharged to the outside through the water outlet 2134. The second notches 231 of the adjacent water-cooling partitions 23 are spaced apart in the up-down direction, so that the travel distance of water in the process of flowing from the water tuyere to the water tuyere is greatly increased, the heat exchange time of the water and the high-temperature flue gas is further increased, and the heat exchange efficiency is further improved.
In some embodiments, the radial dimensions of the first smoke inlet 111 satisfy:
D＝(4V/πu) 1/2 ，
wherein D is the radial dimension of the first smoke inlet 111; v is the volume of the flue gas to be collected; u is the flow velocity of the flue gas, so that the radial dimension of the first flue gas inlet 111 is matched with the flow velocity of the flue gas in the tested flue, and the flow velocity of the flue gas entering the first flue gas inlet 111 is consistent with the flow velocity of the flue gas in the tested flue, thereby further improving the sampling accuracy of the flue gas sampling device 100 in the embodiment of the utility model.
In some embodiments, the first section 11 includes an end far from the second section 12, and the pipe wall thickness of the first section 11 increases in a direction adjacent to the second section 12, so that the first section 11 can cut and collect full-size particles in the flue gas, and the accuracy of sampling by the flue gas sampling device 100 according to the embodiment of the present utility model is further improved.
In some embodiments, as shown in fig. 1, the differential pressure measurement device 3 includes a differential pressure measurer 31, a first smoke inlet pipe 32 and a second smoke inlet pipe 33, one end of the first smoke inlet pipe 32 has a third smoke inlet 321, the other end of the first smoke inlet pipe 32 is communicated with the differential pressure measurer 31, the third smoke inlet 321 is consistent with the opening direction of the first smoke inlet 111, one end of the second smoke inlet pipe 33 has a fourth smoke inlet 3011, the other end of the second smoke inlet pipe 33 is communicated with the differential pressure measurer 31, and the opening direction of the fourth smoke inlet 3011 is away from the opening direction of the third smoke inlet 321. For example, as shown in fig. 1, the opening of the first smoke inlet 111 is downward, the opening direction of the third smoke inlet 321 is downward, and the opening direction of the fourth smoke inlet 3011 is upward, so that the differential pressure measurer 31 can measure the differential pressure P of dynamic pressure and static pressure in the tested flue, and further obtain the flow velocity u of the flue gas in the tested flue.
It will be appreciated that according to the formula u=k (p/p) 1/2 And calculating the flue gas flow velocity u. Where k is the coefficient of the first smoke inlet pipe 32 and the second smoke inlet pipe 33, ρ is the smoke density, and the dynamic pressure and static pressure difference p of the input smoke.
A smoke analysis system 1000 in accordance with an embodiment of the present utility model is described below with reference to the drawings.
As shown in fig. 1, a flue gas analysis system 1000 according to an embodiment of the present utility model includes a flue gas sampling apparatus 100, a condensing apparatus 300, and a flue gas analyzer 200.
The flue gas sampling apparatus 100 is the flue gas sampling apparatus 100 of any of the embodiments described above. The condensing apparatus 300 includes a condenser 301 and a collecting tank 302, the condenser 301 includes a fourth smoke inlet 3011, a second smoke outlet 3012, and a condensed water outlet 3013, the collecting tank 302 includes a condensed water inlet 3021, the condensed water outlet 3013 communicates with the condensed water inlet 3021, and the fourth smoke inlet 3011 communicates with the first smoke outlet 122. The smoke analyzer 200 includes a fifth smoke inlet 2001, and a second smoke outlet 3012 communicates with the fifth smoke inlet 2001.
An embodiment process of the flue gas analysis system 1000 of an embodiment of the present utility model is described below with reference to the accompanying drawings.
The first smoke inlet pipe 32 and the second smoke inlet pipe 33 extend into the tested flue, the third smoke inlet 321 of the first smoke inlet pipe 32 is opposite to the smoke flow direction, the fourth smoke inlet 3011 of the second smoke inlet pipe 33 is opposite to the smoke flow direction, and the differential pressure gauge is used for reading the dynamic pressure and the static pressure difference p of the smoke, so that the smoke flow rate in the tested flue is calculated. The diameter D of the first smoke inlet 111 is calculated from the volume V of smoke to be collected in combination with the smoke flow rate u.
The first smoke inlet 111 of the smoke channel extends into the smoke channel, the opening direction of the first smoke inlet 111 is opposite to the flow direction of smoke, air is blown to the air inlet 2131, air is introduced into the first heat exchange cavity 201, high-temperature smoke exchanges heat with the air, hot air after heat exchange can be discharged from the air outlet 2132, cooling water is injected into the water inlet 2133, the smoke is deeply cooled by heat exchange of the cooling water, and the cooling water after heat exchange can be discharged from the water outlet 2134.
The condenser 301 may condense the flue gas temperature to a set temperature T1, for example, to a reduced temperature of about 120 ℃. The condenser 301 tracks and adjusts in real time according to the set temperature and the thermocouple feedback temperature, and the moisture in the flue gas is condensed down to enter a condensation water tank, so that the moisture content in the flue gas is measured. Alternatively, the condenser 301 is a semiconductor condenser 301. The flue gas after removing the moisture and reducing the temperature enters a flue gas analyzer 200, and the content of pollutants in the flue gas is analyzed in real time.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (10)
1. A smoke sampling device, comprising:
the flue gas pipeline comprises a first flue gas inlet, and the opening direction of the first flue gas inlet is consistent with the preset direction;
the cooling device comprises a cooling box body, the cooling box body defines a heat exchange cavity, the cooling box body comprises a heat exchange medium inlet and a heat exchange medium outlet, the heat exchange medium inlet and the heat exchange medium outlet are communicated with the heat exchange cavity,
the flue gas pipeline penetrates through the cooling box body, and a part of the flue gas pipeline is located in the heat exchange cavity.
2. The smoke sampling device of claim 1 wherein the smoke conduit comprises a first segment and a second segment, the first segment having the first smoke inlet and the first segment being located outside the cooling housing, the second segment being located in the heat exchange chamber, the second segment extending in a direction coincident with the first direction, the second segment comprising a second smoke inlet and a first smoke outlet opposite in the first direction, the first segment communicating with the second segment through the second smoke inlet.
3. The flue gas sampling device of claim 2, wherein the heat exchange chamber comprises a first heat exchange chamber and a second heat exchange chamber,
the first heat exchange cavity and the second heat exchange cavity are opposite in the first direction, the first heat exchange cavity is adjacent to the second smoke inlet relative to the second heat exchange cavity in the first direction,
the cooling box body comprises an air inlet and an air outlet, both the air inlet and the air outlet are communicated with the first heat exchange cavity,
the cooling box body further comprises a water inlet and a water outlet, and the water inlet and the water outlet are communicated with the second heat exchange cavity.
4. A smoke sampling device according to claim 3, wherein said air inlet and said air outlet are spaced apart in said first direction; and/or the water inlet and the water outlet are arranged at intervals in the first direction.
5. A smoke sampling device according to claim 3, wherein the cooling box further comprises: a first end cover, a second end cover, a partition plate and a surrounding wall,
the surrounding wall comprises a first end and a second end which are opposite in the first direction, the first end cover is connected with the first end, the second end cover is connected with the second end, the heat exchange cavity is defined among the first end cover, the second end cover and the surrounding wall, the partition plate is arranged in the surrounding wall and divides the heat exchange cavity into the first heat exchange cavity and the second heat exchange cavity,
the first end cover is provided with a first through hole, the second end cover is provided with a second through hole, the partition plate is provided with a third through hole, the flue gas pipeline penetrates through the first through hole, the second through hole and the third through hole, the second flue gas inlet corresponds to the first through hole, and the first flue gas outlet corresponds to the second through hole.
6. The smoke sampling device of claim 5, wherein said cooling device further comprises: the air cooling partition plates are arranged in the first heat exchange cavity, the air cooling partition plates are arranged at intervals in the first direction, each air cooling partition plate is provided with a first notch, the second sections sequentially penetrate through the air cooling partition plates, the outer contour of each air cooling partition plate is matched with the inner wall surface of the first heat exchange cavity, the adjacent first notches in the air cooling partition plates are arranged at intervals in the second direction, and the second direction is perpendicular to the first direction.
7. The smoke sampling device of claim 5 or 6, wherein the cooling device further comprises: the water cooling partition plates are connected with the inner surface of the second end plate and the inner wall surface of the second heat exchange cavity, the second heat exchange cavity is divided into a water cooling channel and a water return channel by the mounting plates, the mounting plates are provided with water return ports,
the water cooling partition boards are arranged in the water cooling channel, the water cooling partition boards are arranged at intervals in the first direction, each water cooling partition board is provided with a second notch, the second section sequentially penetrates through the water cooling partition boards, the outer contour of each water cooling partition board is matched with the inner wall surface of the second heat exchange cavity, the second notches on the adjacent water cooling partition boards are arranged at intervals in the second direction, and the second direction is perpendicular to the first direction.
8. The smoke sampling device of any one of claims 2-6, wherein the radial dimensions of the first smoke inlet satisfy:
D＝(4V/πu) 1/2 ，
wherein D is the radial dimension of the first smoke inlet; v is the volume of the flue gas to be collected; u is the flue gas flow rate.
9. The smoke sampling device of claim 2, further comprising: the pressure difference measuring device comprises a pressure difference measuring device,
the pressure difference measuring device comprises a pressure difference measurer, a first smoke inlet pipe and a second smoke inlet pipe, wherein a third smoke inlet is formed in one end of the first smoke inlet pipe, the other end of the first smoke inlet pipe is communicated with the pressure difference measurer, the third smoke inlet is consistent with the opening direction of the first smoke inlet, a fourth smoke inlet is formed in one end of the second smoke inlet pipe, the other end of the second smoke inlet pipe is communicated with the pressure difference measurer, and the opening direction of the fourth smoke inlet is deviated from the opening direction of the third smoke inlet.
10. A flue gas analysis system, comprising:
a smoke sampling device according to any one of claims 2 to 9;
the condensing device comprises a condenser and a collecting water tank, the condenser comprises a fourth smoke inlet, a second smoke outlet and a condensed water outlet, the collecting water tank comprises a condensed water inlet, the condensed water outlet is communicated with the condensed water inlet, the fourth smoke inlet is communicated with the first smoke outlet,
the smoke analyzer comprises a fifth smoke inlet, and the second smoke outlet is communicated with the fifth smoke inlet.
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