CN113432937B - Detachable coke oven volatile gas collection equipment and method - Google Patents
Detachable coke oven volatile gas collection equipment and method Download PDFInfo
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- CN113432937B CN113432937B CN202110721990.8A CN202110721990A CN113432937B CN 113432937 B CN113432937 B CN 113432937B CN 202110721990 A CN202110721990 A CN 202110721990A CN 113432937 B CN113432937 B CN 113432937B
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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
- G01N1/24—Suction devices
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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
- G01N2001/2297—Timing devices
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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
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- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
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Abstract
The invention discloses a detachable coke oven volatile gas collecting device and a method, wherein the detachable coke oven volatile gas collecting device comprises an air suction component, a plurality of sampling components, a plurality of pressure sensors and a pump, each of the plurality of sampling components comprises an air inlet pipe, an air outlet pipe, a sampling bag and a sampling chamber, the air inlet pipe is communicated with the air suction component and the sampling chamber, the sampling bag is arranged in the sampling chamber and is detachably sleeved on the air inlet pipe, the air inlet pipe is provided with an air inlet switch, the pressure sensors are arranged in each of the plurality of sampling components in a one-to-one correspondence manner, the sampling bag can expand and contract in the sampling chamber, the sampling bag can be far away from or close to the pressure sensors, the air outlet pipe is communicated with the pump and the sampling chamber, and the air outlet pipe is provided with an air outlet switch. The detachable coke oven volatile gas collecting device can intermittently and automatically collect the coke gas, solves the problem of complicated manual gas collection, and improves the precision and accuracy of volatile gas detection in the coke oven.
Description
Technical Field
The invention relates to the technical field of coal coking, in particular to detachable coke oven volatile gas collection equipment and a detachable coke oven volatile gas collection method.
Background
The coal blending and coking is to uniformly blend more than two kinds of single coal materials according to a proper proportion so as to prepare qualified coke. The different kinds of coals have larger differences in properties, and the same kind of coals have larger differences in structure and composition, so that the components separated out in the coking process show various and complex conditions. The gas types generated in each stage of the coking process are known, and the volatile products in different stages of the coking process are reasonably collected, so that the coking process can be better known, and positive contribution is made to improving the quality of coke, saving energy and pertinently treating the escape of volatile gases. Particularly, the volatile organic gas is collected and treated in different modes, the whole process adopts unified standard treatment, and the resource waste is not beneficial to environmental protection. Therefore, it is important to analyze the volatile gas species at various stages of the overall process. However, in the coking process, the coking time is often 16-18 hours, and the manual collection is time-consuming and labor-consuming.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent.
Therefore, in one aspect, the embodiment of the invention provides a detachable coke oven volatile gas collecting device, which can intermittently and automatically collect the coke gas, so that the problem of complicated manual gas collection in the long-time reaction process is solved, and the precision and accuracy of volatile gas detection in the coke oven are improved.
Another embodiment of the invention provides a method for collecting volatile gases of a detachable coke oven.
The detachable coke oven volatile gas collection device according to the embodiment of the first aspect of the invention comprises: a suction assembly; the sampling assembly comprises an air inlet pipe, an air outlet pipe, a sampling bag and a sampling chamber, wherein the air inlet pipe is communicated with the air suction assembly and the sampling chamber, the sampling bag is arranged in the sampling chamber and detachably sleeved on the air inlet pipe, and the air inlet pipe is provided with an air inlet switch; the pressure sensors are arranged in each sampling chamber of the sampling assemblies in a one-to-one correspondence manner, the sampling bag can expand and contract in the sampling chamber, and the sampling bag can be far away from or close to the pressure sensors; the air outlet pipe is communicated with the pump and the sampling chamber, and an air outlet switch is arranged on the air outlet pipe.
According to the detachable coke oven volatile gas collecting device provided by the embodiment of the invention, volatile gas in the coke oven can be collected through the sampling bag, and the coking gas can be intermittently and automatically collected through the combination of the pump, the air inlet pipe, the air inlet switch, the air outlet pipe, the air outlet switch and the sampling chamber, so that the problem of complicated manual collection of gas in the long-time reaction process is solved, and the precision and accuracy of detecting the volatile gas in the coke oven are improved.
In some embodiments, the inhalation assembly comprises an inhalation nozzle, a telescopic air tube communicating the inhalation nozzle with the ventilation valve, and a ventilation valve connected to each of the air inlet tubes of the plurality of sampling assemblies.
In some embodiments, the detachable coke oven volatile gas collecting device further comprises a gas path distribution turntable, wherein a plurality of first through holes are formed in the gas path distribution turntable, one sides of the first through holes are respectively connected with each gas inlet pipe of the sampling assembly, the gas path distribution turntable is rotatably connected with the vent valve, and the other sides of the first through holes are respectively communicated with the vent valve. .
In some embodiments, the gas path distribution turntable comprises a first portion and a second portion, the first portion and the second portion are relatively rotatable, the first portion is provided with a first through hole, the first through hole in the first portion is connected with the ventilation valve, the second portion is provided with a plurality of first through holes, and the plurality of first through holes in the second portion are respectively connected with each of the gas inlet pipes of the sampling assemblies.
In some embodiments, a void switch is also provided on the second portion, the first via on the first portion being capable of stopping at the void switch.
In some embodiments, each of the plurality of sampling assemblies is in communication with the pump via the gas path distribution dial.
In some embodiments, the detachable coke oven volatile gas collecting device further comprises a housing, a second through hole is formed in the housing, the ventilation valve is arranged in the second through hole in a penetrating mode, the suction nozzle and the telescopic air pipe are located outside the housing, and the air path distribution turntable, the sampling assemblies and the pump are detachably arranged in the housing.
In some embodiments, the detachable coke oven volatile gas collection device further comprises a time controller and a motor controller, wherein the time controller is connected with the motor controller, and the motor controller is respectively connected with the air suction assembly, the sampling assembly, the pressure sensor, the pump and the air path distribution turntable.
In some embodiments, the detachable coke oven volatile gas collection device further comprises a sealing gasket, wherein the sealing gasket is provided with a rotary closing hole, the sealing gasket is arranged in the vent valve, and the rotary closing hole can be opened and closed to adjust the flow area of the vent valve.
In some embodiments, the detachable coke oven volatile gas collecting device is characterized by further comprising a plurality of dust collecting boxes, wherein the dust collecting boxes are arranged in the sampling chambers of the sampling assemblies in a one-to-one correspondence and detachable manner, the dust collecting boxes are arranged between the air inlet pipe and the sampling bag, and filter sheets are arranged in the dust collecting boxes.
The method for collecting volatile gases of the detachable coke oven according to the embodiment of the second aspect of the invention comprises the following steps: connecting the air suction assembly with a coke oven, monitoring the coking time of the coke oven, and when the coking time of the coke oven reaches a first preset coking time; starting one sampling assembly in a plurality of sampling assemblies, and collecting volatile gas in the coke oven through the one sampling assembly; detecting the pressure of a pressure sensor in a sampling chamber in the sampling assembly, closing the sampling assembly when the pressure in the sampling chamber reaches a preset pressure, and turning on a corresponding indicator lamp on the shell; when the coking time of the coke oven reaches the next preset coking time, starting another sampling assembly in the plurality of sampling assemblies, and collecting volatile gas in the coke oven through the another sampling assembly; and detecting the pressure of the pressure sensor in the sampling chamber in the other sampling assembly, and closing the other sampling assembly when the pressure in the sampling chamber reaches the preset pressure until the sampling assemblies are all collected, and all indicator lamps of the shell are turned on.
In some embodiments, when the coking time of the coke oven reaches a first preset coking time, then further comprising: and starting an air path distribution turntable, and connecting the air suction assembly with the plurality of sampling assemblies through the air path distribution turntable.
In some embodiments, when the pressure within the sampling chamber reaches a preset pressure, before closing the one sampling assembly, further comprising: detecting pressure change of a sampling chamber in the sampling assembly through a pressure sensor, and adjusting the acquisition speed of the sampling assembly according to the change rate of the pressure sensor.
In some embodiments, until after all of the plurality of sampling components have completed acquisition, further comprising: disconnecting the air suction assembly from the coke oven, opening the shell, sequentially opening sampling chambers in the sampling assemblies, taking out sampling bags in the sampling chambers, and detecting volatile gases in the sampling bags.
Drawings
FIG. 1 is a schematic view of a removable coke oven volatile gas collection apparatus in accordance with an embodiment of the invention.
Fig. 2 is a top view of a first portion of the gas circuit distribution carousel of fig. 1.
Fig. 3 is a top view of a second portion of the gas circuit distribution carousel of fig. 1.
Reference numerals:
the volatile gas collection device 100 of the gas bag type detachable coke oven comprises a gas suction assembly 1, a gas suction nozzle 11, a telescopic gas pipe 12, a vent valve 13, a sealing gasket 14, a third through hole 15, a dust collection box 16, a sampling assembly 2, a gas inlet pipe 21, a gas inlet switch 211, a gas outlet pipe 22, a gas outlet switch 221, a sampling chamber 23, a pressure sensor 3, a pump 4, a gas path distribution turntable 5, a first through hole 501, a first part 51, a second part 52, a rotating shaft 53, a vacancy switch 54, a shell 6, a second through hole 61, a time controller 62, an indicator lamp 63 and a motor controller 7.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, 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 invention and should not be construed as limiting the invention.
As shown in fig. 1 to 3, a detachable coke oven volatile gas collection apparatus 100 according to an embodiment of the present invention includes a suction assembly 1, a plurality of sampling assemblies 2, a plurality of pressure sensors 3, and a pump 4.
Each of the plurality of sampling assemblies 2 includes an air inlet tube 21, an air outlet tube 22, a sampling bag 24, and a sampling chamber 23. The air inlet pipe 21 is communicated with the air suction assembly 1 and the sampling chamber 23, the sampling bag 24 is arranged in the sampling chamber 23, the sampling bag 24 is detachably sleeved on the air inlet pipe 21, and the air inlet pipe 21 is provided with an air inlet switch 211, namely, the air in the air inlet pipe 21 cannot flow into the sampling chamber 23.
A plurality of pressure sensors 3 are provided in each of the plurality of sampling chambers 23 in a one-to-one correspondence, and a sampling bag 24 is capable of expanding and contracting in the sampling chamber 23, and the sampling bag 24 is movable away from and toward the pressure sensors 3. Specifically, as shown in fig. 1, the pressure sensor 3 may be fixed to the inner wall of the sampling chamber 23, and the sampling bag 24 gradually approaches the pressure sensor 3 after the suction expansion until the sampling bag 24 contacts the pressure sensor 3.
Preferably, the cavity of the sampling chamber 23 is substantially square, and 4 pressure sensors 3, 3 may be disposed in each sampling chamber 23, and the 4 pressure sensors 3 may be disposed on the 4 sidewalls of the sampling chamber 23, respectively, thereby advantageously preventing unstable collection caused by shaking of the sampling bag 24 during air intake.
The air outlet pipe 22 is communicated with the pump 4 and the sampling chamber 23, and an air outlet switch 221 is arranged on the air outlet pipe 22.
The detachable coke oven volatile gas collection apparatus 100 according to the embodiment of the present invention is embodied as follows:
the air inlet switch 211 is closed, the air outlet switch 221 is opened, the pump 4 is started, and the sampling chamber 23 can be pumped into a negative pressure state by the pump 4. At this point, the sampling bag 24 is in a closed state, and there is no gas in the sampling bag 24.
The air outlet switch 221 and the pump 4 are closed, the air inlet switch 211 is opened, and as the sampling chamber 23 is in a negative pressure state, gas in the coke oven can spontaneously enter the sampling bag 24 through the air suction assembly 1, the sampling bag 24 gradually expands, when the sampling bag 24 is in contact with the pressure sensor 3, the sampling bag 24 expands to apply pressure to the pressure sensor 3, when the pressure applied by the pressure sensor 3 reaches a preset threshold value, the air inlet switch 211 is automatically closed, and the collection process is ended. The operator may then open the sampling chamber 23, remove the sampling bag 24 from the sampling chamber 23, and detect the gas in the sampling bag 24.
According to the detachable coke oven volatile gas collecting device 100 of the embodiment of the invention, an operator can collect volatile gas in the coke oven through the sampling bag 24, and can intermittently collect the coke gas through the combination of the pump 4, the air inlet pipe 21, the air inlet switch 211, the air outlet pipe 22 and the air outlet switch 221, so that the precision and the accuracy of detecting the volatile gas in the coke oven are improved.
In some embodiments, specifically, as shown in fig. 1, the number of the air inlet pipe 21, the air inlet switch 211, the air outlet pipe 22, the air outlet switch 221, the sampling bag 24, and the sampling chamber 23 is 8.
It is understood that coking times are often as long as 16-18 hours during the coking process, and manual collection is time consuming and laborious.
The removable coke oven volatile gas collection apparatus 100 of the present invention can collect coking gas intermittently as the char time varies, for example, when the char time reaches 3 hours, one sampling chamber 23 is activated, and then every 1 hour of the char time, one sampling chamber 23 is activated again.
Thus, the detachable coke oven volatile gas collection device 100 of the present invention can collect volatile gas at different coking times in a coke oven by intermittently activating the sampling chamber 23 and the sampling bag 24.
In some embodiments, as shown in FIG. 1, the inhalation assembly 1 comprises an inhalation nozzle 11, a telescopic air tube 12 and a ventilation valve 13, the telescopic air tube 12 communicating with the inhalation nozzle 11 and the ventilation valve 13, the ventilation valve 13 being connected to each of the air inlet tubes 21 of the plurality of sampling assemblies 2.
Specifically, the air valve 13 is provided with a wide-mouth air suction nozzle 11 and a telescopic air pipe 12, the air suction nozzle 11 can conveniently collect air, and the air suction nozzle 11 and the telescopic air pipe 12 are made of fireproof and high-temperature resistant materials.
In some embodiments, as shown in fig. 1-3, the detachable coke oven volatile gas collecting apparatus 100 further includes a gas path distribution turntable 5, where a plurality of first through holes 501 are provided on the gas path distribution turntable 5, one side (for example, a lower side of the gas path distribution turntable 5 in fig. 1) of the plurality of first through holes 501 is connected to the plurality of gas inlet pipes 21, the gas path distribution turntable 5 is rotatably connected to the gas vent valve 13, and the other side (for example, an upper side of the gas path distribution turntable 5 in fig. 1) of the plurality of first through holes 501 is connected to the gas vent valve 13. Thus, each of the plurality of sampling chambers 23 can be operated independently, and mutual interference between the plurality of sampling chambers 23 is not generated.
In some embodiments, as shown in fig. 1-3, the gas path distribution dial 5 includes a first portion 51 and a second portion 52. The first portion 51 and the second portion 52 are relatively rotatable, a first through hole 501 is formed in the first portion 51, the first through hole 501 in the first portion 51 is connected with the ventilation valve 13, a plurality of first through holes 501 are formed in the second portion 52, and the plurality of first through holes 501 in the second portion 52 are respectively connected with the plurality of air inlet pipes 21.
Specifically, the first portion 51 and the second portion 52 are substantially in a circular plate shape, and the first portion 51 and the second portion 52 are both sleeved on the rotating shaft 53, and contact surfaces between the first portion 51 and the second portion 52 are both planes, so that the sealing performance of the air path distribution turntable 5 is improved.
When the first portion 51 rotates relative to the second portion 52, one first through hole 501 of the first portion 51 may sequentially cooperate with 8 first through holes 501 of the second portion 52, so that the 8 sampling chambers 23 sequentially operate.
In some embodiments, as shown in fig. 1-3, a void switch 54 is also provided on the second portion 52, and the second through hole 501 on the first portion 51 can stop at the void switch 54. Specifically, the second portion 52 is further provided with a vacancy switch 54, so that the first through hole 501 on the first portion 51 can be stopped at the vacancy switch 54 when the air path distribution dial 5 is not started.
In some embodiments, as shown in FIG. 1, a plurality of outlet pipes 22 are in communication with the pump 4 via the air path distribution dial 5. It will be appreciated that in the present invention there are 2 gas path distribution turntables 5, one gas path distribution turntable 5 is provided between the ventilation valve 13 and the plurality of gas inlet pipes 21, and the other gas path distribution turntable 5 is provided between the pump 4 and the plurality of gas outlet pipes 22.
In some embodiments, as shown in fig. 1, the detachable coke oven volatile gas collecting apparatus 100 further includes a housing 6, a second through hole 61 is provided on the housing 6, a ventilation valve 13 is disposed in the second through hole 61 in a penetrating manner, the suction nozzle 11 and the telescopic air pipe 12 are located outside the housing 6, and the air path distribution turntable 5, the plurality of sampling assemblies 2 and the pump 3 are all detachably disposed in the housing. Thus, the plurality of sampling chambers 23 can be secured by the housing 6, making the removable coke oven volatile gas collection apparatus 100 more stable during use.
In some embodiments, the removable coke oven volatile gas collection apparatus 100 further comprises a time controller 62 and a motor controller 7, the time controller 62 being connected to the motor controller 7, the motor controller 7 being connected to the suction assembly 1, the sampling assembly 2, the pressure sensor 3, the pump 4 and the gas path distribution turntable 5, respectively.
The time controller 62 is adapted to detect the coking time of a coking plant, such as a coke oven, the time controller 62 being connected to a motor controller 7, the motor controller 7 being connected to the suction assembly 1, the sampling assembly 2, the pressure sensor 3, the pump 4 and the gas path distribution turntable 5, respectively.
It will be appreciated that the motor controller 7 is responsible for the power supply and automation of the removable coke oven volatile gas collection apparatus 100.
The time of the time controller 62 is synchronized with the coking time in the coke oven, and when the coking time in the coke oven reaches a first preset time, the time controller 62 transmits a time signal to the motor controller 7.
The motor controller 7 controls the gas path distribution turntable 5 to rotate, and is communicated with the gas suction assembly 1 and the first sampling assembly 2 in the plurality of sampling assemblies 2 through the gas path distribution turntable 5, and the first sampling assembly 2 starts to collect. At this time, the pressure sensor 3 provided on the first sampling assembly 2 can detect the pressure in the first sampling assembly 2 in real time, and when the pressure in the first sampling assembly 2 reaches the preset pressure, the pressure sensor 3 transmits a pressure signal to the motor controller 7, the motor controller 7 closes the first sampling assembly 2, and the first sampling assembly 2 completes the collection.
Preferably, the shell 6 is made of a light-weight high-temperature-resistant metal alloy, the shell 6 can be opened, and the connection part of the shell 6 is sealed. All the pipelines and the inner walls in the shell 6 are made of high-temperature resistant and antistatic materials.
In some embodiments, as shown in fig. 1, the detachable coke oven volatile gas collection device 100 further includes a sealing gasket 14, a rotary closing hole 15 is provided on the sealing gasket 14, the sealing gasket 14 is provided in the vent valve 13, and the rotary closing hole 15 can be opened and closed to adjust the flow area of the vent valve 13.
Specifically, the sealing gasket 14 is provided in the vent valve 13, and the outer peripheral surface of the sealing gasket 14 is closely connected to the inner peripheral surface of the vent valve 13, i.e., the vent valve 13 can only circulate through the rotary closing hole 15. The rotary closing hole 15 is located right below the inlet of the vent valve 13, the rotary closing hole 15 is of a petal-shaped rotary structure, and the rotary closing hole 15 can be opened and closed to adjust the flow area of the rotary closing hole 15, and then the flow area of the vent valve 13 is adjusted.
In some embodiments, as shown in fig. 1, the detachable coke oven volatile gas collection apparatus 100 further includes a plurality of dust collection boxes 16, where the plurality of dust collection boxes 16 are disposed in a sampling chamber 23 of the plurality of sampling assemblies 2 in a one-to-one correspondence and detachable manner, the dust collection boxes 16 are disposed between the air inlet pipe 21 and the sampling bag 24, and filter sheets (not shown) are disposed in the dust collection boxes.
The dust collection box 16 can be used for filtering dust carried in the volatile gas, which is beneficial to improving the detection precision of the volatile gas collection device 100 of the detachable coke oven. Wherein, the filter sheet can be made of high temperature resistant materials.
Specifically, the detachable coke oven volatile gas collecting apparatus 100 of the present invention further includes a motor controller 7 and 8 indicator lamps 63, and the motor controller 7 is responsible for the power supply and the automatic setting of the detachable coke oven volatile gas collecting apparatus 100. The 8 indicator lamps 63 are respectively connected to the 8 sampling chambers 23 to display the operating states of the sampling chambers 23.
The removable coke oven volatile gas collection apparatus 100 of the present invention operates as follows:
1. after the shell 6 is adjusted in a sealing way and placed stably, the direction of the suction nozzle 11 is adjusted, the telescopic air pipe 12 is stretched to a proper length, the suction nozzle 11 is aligned with an air source, a power switch of the motor controller 7 is turned on, and the air channel distribution turntable 5 connects an air inlet pipe 21 and an air outlet pipe 22 to a sampling chamber 23.
2. When the char time reaches a preset first time (for example, 3 hours), the air pump pumps the inside of one sampling chamber 23 to negative pressure, then stops pumping, the sampling bag 24 is in a closed state, no air exists in the sampling bag 24, the ventilation valve 13 is opened, and external air enters the sampling bag 24 through the ventilation valve 13 and the air inlet pipe 21, wherein the air inlet switch 211 and the air outlet switch 221 are simultaneously opened.
3. As the gas in the sampling bag 24 grows, the sampling bag 24 gradually expands, and the sampling bag 24 acts on the pressure sensor 3. The pressure sensor 3 senses pressure change and feeds back the pressure change to the motor controller 7, and the motor controller 7 adjusts the air inflow through adjusting the sealing gasket 14, so that the collection is prevented from being too fast or too slow.
5. When the sub-resistor 3 reaches the set pressure, the vent valve 13 is closed, an indicator lamp 63 is turned on, and gas collection of one sampling bag 24 is completed.
6. The motor controller 7 controls the gas path distribution turntable 5 to rotate, and connects the other gas inlet pipe 21 and the other gas outlet pipe 22 to the other sampling chamber 23, and repeats the above steps 3-5.
7. The indicator lamp 63 is sequentially lighted with the collection condition of each sampling chamber 23. After all the time tasks are completed, the air path distribution turntable 5 rotates to the position of the vacancy switch 54, the motor controller 7 stops working, and collection is completed.
8. When the collection is completed and the gas is required to be guided, the shell 6 and the sampling chamber 23 are opened, the sampling bag 24 in the sampling chamber 23 is taken out, and the gas in the corresponding sampling bag 24 is guided out according to the requirement.
The method for collecting volatile gases of the detachable coke oven comprises the following steps of:
the suction assembly 1 is connected with a coke oven, the coking time of the coke oven is monitored, and when the coking time of the coke oven reaches a first preset coking time.
One sampling assembly 2 of the plurality of sampling assemblies 2 is started, and the volatile gas in the coke oven is collected through the one sampling assembly 2.
The pressure of the pressure sensor 3 in the sampling chamber 23 of one sampling assembly 2 is detected, and when the pressure in the sampling chamber 23 reaches a preset pressure, one sampling assembly 2 is turned off, and a corresponding one of the indicator lamps 63 on the housing 6 is turned on.
When the coking time of the coke oven reaches the next preset coking time, the other sampling assembly 2 in the plurality of sampling assemblies 2 is started, and the volatile gas in the coke oven is collected through the other sampling assembly 2.
The pressure of the pressure sensor 3 in the sampling chamber 23 of the other sampling assembly 2 is detected, and when the pressure in the sampling chamber 23 reaches the preset pressure, the other sampling assembly 2 is closed until the sampling assemblies 2 are all collected, and all the indicator lamps 63 on the shell 6 are turned on.
In some embodiments, when the coking time of the coke oven reaches a first preset coking time, then further comprising: the gas path distribution turntable 5 is started, and the gas suction assembly 1 is respectively connected with the plurality of sampling assemblies 2 through the gas path distribution turntable 5.
In some embodiments, when the pressure in the sampling chamber 23 reaches a preset pressure, the method further comprises, before closing one sampling assembly 2: the pressure sensor 3 detects the pressure change in the sampling chamber 23 in one sampling assembly 2, and the sampling speed of one sampling assembly 2 is adjusted according to the rate of change of the pressure sensor 3.
Specifically, when the pressure sensor 3 changes rapidly, the motor controller 7 adjusts the rotary closing hole 15, so that the flow area of the rotary closing hole 15 becomes smaller, and then the flow rate of the ventilation valve 13 is reduced, so that the speed of the coking gas entering the sampling chamber 23 becomes slower, which is beneficial to improving the safety of the invention.
In some embodiments, until after the plurality of sampling assemblies 2 have all completed acquisition, further comprises: the suction unit 1 and the coke oven are disconnected, the housing 6 is opened, the sampling chambers 23 in the plurality of sampling units 2 are sequentially opened, the sampling bag 24 in the sampling chamber 23 is taken out, and the volatile gas in the sampling bag 24 is detected.
The method for collecting volatile gases of the detachable coke oven according to the embodiment of the invention comprises the following specific procedures:
1. the suction assembly 1 is connected with inert gas, the pump 4 is started, at this time, the sampling chamber 23 is not provided with the sampling bag 24, the plurality of sampling assemblies 2 are sequentially subjected to gas washing treatment, and the plurality of sampling assemblies 2 subjected to gas washing treatment are hermetically stored.
2. The air path distribution turntable 5 is adjusted to adjust the first through hole 501 on the first part 51 to the position of the vacancy switch 54 on the second part 52, and at this time, the plurality of sampling assemblies 2 are disconnected from the air suction assembly 1.
3. A sampling bag 24 is installed in each sampling chamber 23, the suction assembly 1 is connected with the coke oven, a time controller 62 is started, and the time controller 62 is used for detecting the coking time in the coke oven.
4. When the coking time in the coke oven reaches the first preset time, the time controller 62 transmits a time signal to the motor controller 7, and the motor controller 7 controls the gas path distribution turntable 5 to rotate, and the gas path distribution turntable 5 is communicated with the gas suction assembly 1 and the first sampling assembly 2. The motor controller 7 controls the inlet switch 211 and the outlet switch 221 in the first sampling assembly 2 to be opened, and starts the pump 4 to pump the sampling chamber 23 in the first sampling assembly 2 into a negative pressure state. Volatile gases in the coke oven flow into the sampling bag 24.
5. The first pressure sensor 3 detects the pressure in the sampling chamber 23 in the first sampling assembly 2, and when the pressure in the sampling chamber 23 in the first sampling assembly 2 reaches a preset threshold value, the motor controller 7 closes the air inlet switch 211 and the air outlet switch 221, the first sampling assembly 2 finishes collection, and the pump 4 stops pumping.
6. Continuing to coke in the coke oven, when the coking time in the coke oven reaches the second preset time, the steps 4-5 are heavy, and the second sampling assembly 2 is started until the 8 sampling assemblies 2 in the invention are all used for completing the acquisition.
7. After all 8 sampling assemblies 2 in the invention are collected, the gas path distribution turntable 5 is adjusted, the first through hole 501 on the first part 51 is adjusted to the position of the vacancy switch 54 on the second part 52, and at the moment, the sampling assemblies 2 are disconnected from the air suction assembly 1.
The invention solves the problem that the existing gas collecting device can not be applied to automatically collect gas in the long-time reaction process. The coking reaction time is long, the components are complex, and the manual collection is time-consuming and labor-consuming. The invention completes the work of automatically and intermittently collecting the volatile gas of the coke by a multi-channel, multi-sampling chamber, time and gas path system control method. The invention fully considers the characteristics of the coal tar volatile gas and sets a corresponding treatment method aiming at the characteristics.
The device is portable and easy to place, and is convenient to clean due to various designs such as a detachable dust collection box, a detachable sampling bag, an openable sampling chamber and the like. The fire-resistant, high-temperature-resistant and antistatic design is adopted, so that dangerous explosion of the collected gas is avoided. The joint of the device is subjected to sealing treatment, so that the tightness of the device is ensured. Through the automatic setting of motor, adjust the air input at any time, accomplish automatic acquisition to the suggestion is gathered and is accomplished.
In the description of the present invention, 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 invention 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 invention.
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 invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, 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 invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, 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 invention. 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 invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, 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 invention.
Claims (9)
1. A removable coke oven volatile gas collection apparatus comprising:
a suction assembly;
the sampling assembly comprises an air inlet pipe, an air outlet pipe, a sampling bag and a sampling chamber, wherein the air inlet pipe is communicated with the air suction assembly and the sampling chamber, the sampling bag is arranged in the sampling chamber and detachably sleeved on the air inlet pipe, and the air inlet pipe is provided with an air inlet switch;
the pressure sensors are arranged in each sampling chamber of the sampling assemblies in a one-to-one correspondence manner, the sampling bag can expand and contract in the sampling chamber, the sampling bag can be far away from or close to the pressure sensors, four pressure sensors are arranged in each sampling chamber, and the four pressure sensors are respectively arranged on four side walls of the sampling chamber;
the air outlet pipe is communicated with the pump and the sampling chamber, and an air outlet switch is arranged on the air outlet pipe;
the air suction assembly comprises an air suction nozzle, a telescopic air pipe and a ventilation valve, the telescopic air pipe is communicated with the air suction nozzle and the ventilation valve, and the ventilation valve is connected with each air inlet pipe of the sampling assemblies;
the gas path distribution turntable is provided with a plurality of first through holes, one sides of the first through holes are respectively connected with each gas inlet pipe of the sampling assemblies, the gas path distribution turntable is rotatably connected with the vent valve, and the other sides of the first through holes are respectively communicated with the vent valve;
the gas path distribution turntable comprises a first part and a second part, the first part and the second part are relatively rotatable, the first part is provided with a first through hole, the first through hole in the first part is connected with the ventilation valve, the second part is provided with a plurality of first through holes, and the plurality of first through holes in the second part are respectively connected with each gas inlet pipe of the sampling assemblies;
a vacancy switch is further arranged on the second part, and the first through hole on the first part can be stopped at the vacancy switch;
the time controller is connected with the motor controller, and the motor controller is respectively connected with the air suction assembly, the sampling assembly, the pressure sensor, the pump and the air path distribution turntable; the plurality of the indicating lamps are in one-to-one correspondence with the plurality of sampling chambers and are connected with each other;
the number of the gas path distribution turntables is two, one gas path distribution turntable is arranged between the ventilation valve and the plurality of gas inlet pipes, and the other gas path distribution turntable is arranged between the pump and the plurality of gas outlet pipes.
2. The removable coke oven volatile gas collection apparatus of claim 1 wherein each of the outlet pipes of the plurality of sampling assemblies is in communication with the pump via the gas path distribution dial.
3. The removable coke oven volatile gas collection device of claim 2, further comprising a housing, wherein a second through hole is formed in the housing, the vent valve is disposed through the second through hole, the suction nozzle and the telescopic air tube are located outside the housing, and the air path distribution turntable, the plurality of sampling assemblies and the pump are all detachably disposed in the housing.
4. The removable coke oven volatile gas collection apparatus of claim 3, further comprising a sealing gasket having a rotating closed orifice disposed therein, the sealing gasket being disposed within the vent valve, the rotating closed orifice being openable and closable to adjust the flow area of the vent valve.
5. The removable coke oven volatile gas collection apparatus of claim 1, further comprising a plurality of dust collection boxes, wherein a plurality of dust collection boxes are disposed in one-to-one correspondence with and removable from the sampling chambers in the plurality of sampling assemblies, wherein the dust collection boxes are disposed between the air inlet pipe and the sampling bag, and wherein filter sheets are disposed in the dust collection boxes.
6. A removable coke oven volatile gas collection method utilizing the removable coke oven volatile gas collection apparatus of any one of claims 1-5, comprising:
connecting the air suction assembly with a coke oven, monitoring the coking time of the coke oven, and when the coking time of the coke oven reaches a first preset coking time;
starting one sampling assembly in a plurality of sampling assemblies, and collecting volatile gas in the coke oven through the one sampling assembly;
detecting the pressure of a pressure sensor in a sampling chamber in the sampling assembly, closing the sampling assembly when the pressure in the sampling chamber reaches a preset pressure, and turning on a corresponding indicator lamp on the shell;
when the coking time of the coke oven reaches the next preset coking time, starting another sampling assembly in the plurality of sampling assemblies, and collecting volatile gas in the coke oven through the another sampling assembly;
and detecting the pressure of the pressure sensor in the sampling chamber in the other sampling assembly, and closing the other sampling assembly when the pressure in the sampling chamber reaches the preset pressure until the sampling assemblies are all collected, and all the indicator lamps on the shell are turned on.
7. The removable coke oven volatile gas collection method of claim 6, further comprising, after the coking time of the coke oven reaches the first preset coking time: and starting an air path distribution turntable, and connecting the air suction assembly with the plurality of sampling assemblies through the air path distribution turntable.
8. The method for collecting volatile gases from a removable coke oven of claim 6, further comprising, before closing said one sampling assembly, when the pressure within said sampling chamber reaches a predetermined pressure:
detecting pressure change of a sampling chamber in the sampling assembly through a pressure sensor, and adjusting the acquisition speed of the sampling assembly according to the change rate of the pressure sensor.
9. The method for collecting volatile gases from a removable coke oven of claim 6, further comprising, until after all of the plurality of sampling assemblies have been collected: disconnecting the air suction assembly from the coke oven, opening the shell, sequentially opening sampling chambers in the sampling assemblies, taking out sampling bags in the sampling chambers, and detecting volatile gases in the sampling bags.
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| CN202110721990.8A CN113432937B (en) | 2021-06-28 | 2021-06-28 | Detachable coke oven volatile gas collection equipment and method |
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| CN202110721990.8A CN113432937B (en) | 2021-06-28 | 2021-06-28 | Detachable coke oven volatile gas collection equipment and method |
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| CN114264779B (en) * | 2021-12-24 | 2022-08-30 | 四川航天职业技术学院(四川航天高级技工学校) | Closed space gas detection equipment based on Internet of things |
| CN114955169B (en) * | 2022-05-24 | 2024-06-25 | 科赛乐科技(上海)有限公司 | Filling type multi-dust sampling box and dust monitoring equipment using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200968909Y (en) * | 2006-11-20 | 2007-10-31 | 天津市环境保护科学研究院 | Polluting source malodorous gas sampling device |
| CN201327457Y (en) * | 2008-12-29 | 2009-10-14 | 深圳市华测检测技术股份有限公司 | A multi-channel timing control automatic atmospheric sampling system |
| CN204855218U (en) * | 2015-07-09 | 2015-12-09 | 北京盈盛恒泰科技有限责任公司 | Online gas sampling ware |
| CN108064784A (en) * | 2018-01-08 | 2018-05-25 | 上海电机学院 | A kind of ship borne type air energy fish pond quantifies device for administering orally |
| CN108928506A (en) * | 2018-05-25 | 2018-12-04 | 湖北省联投生物科技股份有限公司 | A kind of tyrosine finished product packing device |
| CN110095325A (en) * | 2019-05-28 | 2019-08-06 | 山东瑞泽检测评价技术服务有限公司 | A kind of miniature small traffic timing gas sampler of airbag |
| CN212031074U (en) * | 2020-04-27 | 2020-11-27 | 四川中资时代科技有限公司 | Sampling vehicle for air detection |
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