CN113893641A - Combustible gas processing device and combustible gas processing method - Google Patents
Combustible gas processing device and combustible gas processing method Download PDFInfo
- Publication number
- CN113893641A CN113893641A CN202111362449.9A CN202111362449A CN113893641A CN 113893641 A CN113893641 A CN 113893641A CN 202111362449 A CN202111362449 A CN 202111362449A CN 113893641 A CN113893641 A CN 113893641A
- Authority
- CN
- China
- Prior art keywords
- gas
- liquid
- concentration
- membrane separator
- combustible gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012545 processing Methods 0.000 title claims abstract description 41
- 238000003672 processing method Methods 0.000 title claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 246
- 239000012528 membrane Substances 0.000 claims abstract description 162
- 239000007789 gas Substances 0.000 claims description 345
- 238000001179 sorption measurement Methods 0.000 claims description 69
- 238000002309 gasification Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 26
- 239000002912 waste gas Substances 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 13
- 238000002485 combustion reaction Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 12
- 150000002430 hydrocarbons Chemical class 0.000 description 11
- 239000004215 Carbon black (E152) Substances 0.000 description 10
- 229930195733 hydrocarbon Natural products 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000004880 explosion Methods 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 239000003595 mist Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001345 alkine derivatives Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/229—Integrated processes (Diffusion and at least one other process, e.g. adsorption, absorption)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/30—Controlling by gas-analysis apparatus
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Incineration Of Waste (AREA)
Abstract
The present disclosure provides a combustible gas processing apparatus and a combustible gas processing method. The combustible gas processing apparatus includes: condenser, vapour and liquid separator, liquid treatment portion, membrane separator and exhaust-gas treatment portion. A first concentration analyzer connected between the outlet of the first membrane separator and the inlet of the condenser; and a first controller connected to the first concentration analyzer, wherein the condenser outlet is connected to the gas-liquid separator inlet, the gas-liquid separator liquid outlet is connected to the liquid treatment portion, the gas-liquid separator gas outlet is connected to the membrane separator inlet, the first membrane separator outlet is connected to the condenser inlet, the second membrane separator outlet is connected to the exhaust gas treatment portion, and the first controller is configured to determine that the membrane separator is operating normally and cause gas discharged from the first membrane separator outlet to flow into the condenser when the combustible gas concentration detected by the first concentration analyzer is greater than or equal to a first concentration threshold.
Description
Technical Field
Embodiments of the present disclosure relate to a combustible gas processing apparatus and a combustible gas processing method.
Background
When a combustible gas such as a hydrocarbon gas leaks, the combustible gas is mixed with air to form a mixed gas. When the volume fraction of combustible gas in the mixed gas reaches an explosion limit state, explosion can occur when encountering static electricity or open fire. These mixed gases, if left untreated, can flow and diffuse around with natural wind or the ground, creating a significant hazard to the surrounding environment.
The conventional solution at present is to dilute and disperse by using natural wind or fire-fighting water mist to achieve the purpose of reducing the concentration of combustible gas to reduce the explosion risk.
Disclosure of Invention
According to at least one embodiment of the present disclosure, there is provided a combustible gas processing apparatus including: a condenser comprising a condenser inlet and a condenser outlet; the gas-liquid separator comprises a gas-liquid separator inlet, a gas-liquid separator liquid outlet and a gas-liquid separator gas outlet; a liquid treatment section configured to treat liquid entering the liquid treatment section; a membrane separator comprising a membrane separator inlet, a first membrane separator outlet, and a second membrane separator outlet; an exhaust gas treatment section configured to treat gas entering the exhaust gas treatment section; a first concentration analyzer connected between the first membrane separator outlet and the condenser inlet and configured to measure a combustible gas concentration in the gas from the first membrane separator outlet; a first controller connected to the first concentration analyzer, wherein the condenser outlet is connected to the gas-liquid separator inlet, the gas-liquid separator liquid outlet is connected to the liquid treatment section, the gas-liquid separator gas outlet is connected to the membrane separator inlet, the first membrane separator outlet is connected to the condenser inlet, the second membrane separator outlet is connected to the offgas treatment section, and the first controller is configured to determine that the membrane separator is operating normally and cause gas discharged from the first membrane separator outlet to flow into the condenser when the combustible gas concentration detected by the first concentration analyzer is greater than or equal to a first concentration threshold; and when the concentration of the combustible gas detected by the first concentration analyzer is less than the first concentration threshold value, judging that the membrane separator works abnormally and performing fault treatment.
In some examples, the membrane separator comprises a gas filtration membrane, the first and second membrane separator outlets are located on either side of the filtration membrane, and the first membrane separator outlet is located on a side enriched in combustible gas.
In some examples, the liquid treatment part includes a pump line and a gasification burner connected in sequence, the gasification burner is connected with the liquid outlet of the gas-liquid separator through the pump line, and the gasification burner is configured to perform gasification combustion on the inflowing liquid and discharge the combusted gas to the outside.
In some examples, the exhaust gas treatment part comprises an adsorption tank and a fan connected in sequence from the outlet of the second membrane separator, and a vacuum pump connected to the adsorption tank, the vacuum pump being further connected to the inlet of the condenser and configured to suck and convey the gas adsorbed by the adsorption tank to the condenser.
In some examples, the combustible gas treatment device further comprises a liquid storage tank located between the gas-liquid separator liquid outlet and the liquid treatment section and configured to store liquid separated by the gas-liquid separator.
In some examples, the combustible gas treatment device further comprises a second concentration analyzer located between the outlet of the second membrane separator and the exhaust gas treatment section and configured to measure the combustible gas concentration in the gas from the outlet of the second membrane separator.
In some examples, the combustible gas treatment apparatus further comprises a third concentration analyzer located between the adsorption tank and the fan and configured to measure the combustible gas concentration in the gas exhausted from the adsorption tank.
In some examples, the combustible gas treatment apparatus further includes a liquid level meter located in the liquid storage tank, the liquid level meter configured to detect a liquid volume condition of the liquid storage tank.
In some examples, the combustible gas processing apparatus further comprises a second controller connected to the second concentration analyzer and configured to determine that the membrane separator is operating abnormally and perform fault handling when the combustible gas concentration detected by the second concentration analyzer is greater than or equal to a second concentration threshold; when the combustible gas concentration detected by the second concentration analyzer is less than the second concentration threshold value, it is determined that the membrane separator is operating normally and gas discharged from the outlet of the second membrane separator is caused to flow into the exhaust gas treatment portion.
In some examples, the combustible gas processing apparatus further comprises a third controller connected to the third concentration analyzer and configured to determine that the adsorption tank is operating normally and to cause the gas discharged from the adsorption tank to enter the fan when the combustible gas concentration detected by the third concentration analyzer is less than a third concentration threshold; and when the concentration of the combustible gas detected by the third concentration analyzer is greater than or equal to the third concentration threshold value, judging that the adsorption box works abnormally and carrying out fault treatment.
In some examples, the combustible gas processing apparatus further comprises a fourth controller connected to the level meter and configured to activate the pump circuit to deliver the liquid in the liquid storage tank to the gasification burner for gasification combustion when a ratio of a volume of the liquid detected by the level meter to a total volume of the liquid storage tank is greater than a predetermined ratio.
According to at least one embodiment of the present disclosure, there is provided a combustible gas treatment method using the above combustible gas treatment apparatus, including: introducing the collected combustible gas mixture into the condenser through the condenser inlet; introducing the gas condensed by the condenser into the gas-liquid separator through the inlet of the gas-liquid separator to perform gas-liquid separation; introducing liquid obtained after gas-liquid separation into the liquid treatment part for treatment, and introducing gas obtained after gas-liquid separation into the membrane separator through the inlet of the membrane separator for treatment; the gas introduced into the membrane separator is processed by the membrane separator and divided into a first part and a second part, the combustible gas content of the first part is larger than that of the second part, the first part enters the condenser through the outlet of the first membrane separator, the second part enters the waste gas processing part through the outlet of the second membrane separator for processing, the combustible gas concentration of the first part divided after being processed by the membrane separator is detected to obtain a first concentration value, when the first concentration value is larger than or equal to a first concentration threshold value, the membrane separator is judged to be in normal operation, and the gas discharged from the outlet of the first membrane separator flows into the condenser; and when the first concentration value is smaller than the first concentration threshold value, judging that the membrane separator works abnormally and carrying out fault treatment.
In some examples, the second part divided after being processed by the membrane separator is subjected to combustible gas concentration detection to obtain a second concentration value, and when the second concentration value is greater than or equal to a second concentration threshold value, the membrane separator is judged to be in abnormal operation and fault treatment is carried out; when the second concentration value is less than the second concentration threshold value, it is determined that the membrane separator is operating normally and gas discharged from the outlet of the second membrane separator is caused to flow into the exhaust gas treatment section.
In some examples, the exhaust gas treatment part treating the introduced gas includes: adsorbing the gas entering the waste gas treatment part through an adsorption tank to adsorb at least part of combustible gas, and discharging the gas which is not adsorbed; the adsorbed gas is sucked out by a vacuum pump and introduced into the condenser for circulation.
In some examples, the combustible gas processing method further comprises the steps of detecting the concentration of the combustible gas in the unadsorbed gas discharged from the adsorption tank to obtain a third concentration value, and when the third concentration value is smaller than a third concentration threshold value, determining that the adsorption tank works normally and discharging the gas discharged from the adsorption tank to the outside; and when the third concentration value is greater than or equal to the third concentration threshold value, judging that the adsorption box works abnormally and carrying out fault treatment.
In some examples, treating the liquid introduced into the liquid treatment section includes: the liquid is introduced into a gasification burner through a pump line to be gasified and burned, and gas generated after the burning is discharged to the outside.
In some examples, the combustible gas treatment method further comprises storing the liquid in a liquid storage tank between introducing the liquid into the liquid portion; and detecting the liquid volume state of the liquid storage tank, and starting the pump circuit to convey the liquid in the liquid storage tank to the gasification burner for gasification combustion when the ratio of the liquid volume to the total volume of the liquid storage tank is larger than a preset ratio.
According to the combustible gas treatment device and the combustible gas treatment method, the mixed gas of the combustible gas and the air can be subjected to gas-liquid two-phase conversion separation and respectively treated, and the treatment process is ensured to be safely and effectively carried out through concentration detection feedback information.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.
FIG. 1 is a block diagram of a combustible gas processing apparatus according to some embodiments of the present disclosure;
FIG. 2 is a block diagram of a combustible gas treatment apparatus according to further embodiments of the disclosure;
FIG. 3 is a schematic diagram of various connections of a concentration meter and a controller in a combustible gas processing apparatus according to some embodiments of the disclosure;
FIG. 4 is a flow chart of a combustible gas treatment method according to some embodiments of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
Although dilution and dispersion by natural wind or fire-fighting water mist can achieve the purpose of reducing the concentration of combustible gas to reduce the risk of explosion, the conventional dilution and dispersion process of natural wind or fire-fighting water mist has a plurality of disadvantages: the natural wind dissipation is depended on, the limitation of weather conditions is large, if strong wind does not exist in several days, the natural dissipation period is long, the threat of residual gas to the surroundings exists all the time, and if the combustible gas is blown to the surrounding area with open fire or sparks, the combustible gas mixed with air is ignited or detonated, and the damage is serious; the water mist can not be diluted or dispersed, but the mixing degree of the combustible gases and air can only be enhanced to achieve the purpose of dilution, and meanwhile, the combustible gases can be dispersed to areas with open fire or sparks to cause flash explosion, so that the water mist can be seriously damaged.
Some embodiments according to the present disclosure provide a combustible gas treatment apparatus comprising: a condenser comprising a condenser inlet and a condenser outlet; the gas-liquid separator comprises a gas-liquid separator inlet, a gas-liquid separator liquid outlet and a gas-liquid separator gas outlet; a liquid treatment section configured to treat liquid entering the liquid treatment section; a membrane separator comprising a membrane separator inlet, a first membrane separator outlet, and a second membrane separator outlet; an exhaust gas treatment section configured to treat a gas entering the gas treatment; a first concentration analyzer connected between the first membrane separator outlet and the condenser inlet and configured to measure a combustible gas concentration in the gas from the first membrane separator outlet; a first controller connected to the first concentration analyzer, wherein the condenser outlet is connected to the gas-liquid separator inlet, the gas-liquid separator liquid outlet is connected to the liquid treatment section, the gas-liquid separator gas outlet is connected to the membrane separator inlet, the first membrane separator outlet is connected to the condenser inlet, the second membrane separator outlet is connected to the offgas treatment section, and the first controller is configured to determine that the membrane separator is operating normally and cause gas discharged from the first membrane separator outlet to flow into the condenser when the combustible gas concentration detected by the first concentration analyzer is greater than or equal to a first concentration threshold; and when the concentration of the combustible gas detected by the first concentration analyzer is less than the first concentration threshold value, judging that the membrane separator works abnormally and performing fault treatment. According to the combustible gas processing device disclosed by the embodiment of the disclosure, the mixed gas of the combustible gas and the air can be subjected to gas-liquid two-phase conversion separation and respectively processed, and the processing flow is ensured to be safely and effectively carried out through the concentration detection feedback information.
Some embodiments according to the present disclosure are described in more detail below with reference to the drawings, so that technical solutions and corresponding technical effects of the embodiments of the present disclosure can be more clearly understood.
FIG. 1 is a block diagram of a combustible gas processing apparatus according to some embodiments of the present disclosure. As shown in fig. 1, the combustible gas processing apparatus includes a condenser, a gas-liquid separator, a membrane separator, a liquid processing portion, an offgas processing portion, a first concentration analyzer, and a first controller (see fig. 3). The condenser includes a condenser inlet and a condenser outlet. The gas-liquid separator comprises a gas-liquid separator inlet, a gas-liquid separator liquid outlet and a gas-liquid separator gas outlet. The membrane separator includes a membrane separator inlet, a first membrane separator outlet, and a second membrane separator outlet. The liquid treatment section is configured to treat liquid entering the liquid treatment section. An exhaust gas treatment section configured to treat gas entering the gas treatment. A first concentration analyzer is connected between the first membrane separator outlet and the condenser inlet and is configured to measure a combustible gas concentration in the gas from the first membrane separator outlet. The first controller is connected with the first concentration analyzer.
It should be noted that the inlet and outlet of each component are not shown in detail, however, the flow direction of gas or liquid is shown in fig. 1, and gas or liquid flowing into a component includes an inlet at a corresponding position, and gas or liquid flowing out of a component includes an outlet at a corresponding position. Certain components include multiple inlets and/or multiple outlets, which are not particularly limited in accordance with embodiments of the present disclosure. Further, according to the description about the gas combustion treatment apparatus or the treatment method, the liquid is flowed in as the liquid inlet, and the liquid is flowed out as the liquid outlet; the gas inlet is the gas inlet for gas inflow and the gas outlet is the gas outlet for gas outflow, whereas the inlet or outlet not defined by gas or liquid can also be unambiguously defined in the context of the description.
Referring to fig. 1, the outlet of the condenser is connected to the inlet of the gas-liquid separator, the liquid outlet of the gas-liquid separator is connected to the liquid treatment part, the gas outlet of the gas-liquid separator is connected to the inlet of the membrane separator, the outlet of the first membrane separator is connected to the inlet of the condenser, and the outlet of the second membrane separator is connected to the waste gas treatment part. Therefore, as shown in fig. 1, the combustible gas treatment apparatus according to the embodiment of the present disclosure may implement a liquid treatment branch in the condenser, the gas-liquid separator, and the liquid treatment section; the waste gas treatment branch is realized in the condenser, the gas-liquid separator, the membrane separator and the waste gas treatment part; and gas circulation treatment branches can be realized in the condenser, the gas-liquid separator and the membrane separator. Therefore, the combustible gas treatment device according to the embodiment of the disclosure can treat the mixed gas containing the combustible gas from gas phase and liquid phase at the same time, and circularly treat the gas, thereby improving the efficiency of combustible gas treatment. Specific combustible gas treatment processes will be described in more detail later with reference to examples of combustible gas treatment methods.
For example, the condenser has a low-temperature refrigeration function, gas enters the condenser, and combustible gas is condensed into a liquid state when the temperature of the combustible gas is lower than the boiling point temperature under the action of low temperature, so that the conversion from a gas phase to a liquid phase is realized. The power form of the condenser may be electric or hydraulic, but embodiments according to the present disclosure are not limited thereto.
For example, the gas-liquid separator may separate the liquid condensed from the condenser from the gaseous combustible gas, the liquid being discharged through a gas-liquid separator liquid outlet, and the gas being discharged through a gas-liquid separator gas outlet. The gas-liquid separator may take any suitable configuration, and embodiments according to the present disclosure are not particularly limited and thus will not be described in detail herein.
The combustible gas processing apparatus according to embodiments of the present disclosure can further include a first controller coupled to the first concentration analyzer. The first controller is configured to determine that the membrane separator is operating normally and cause gas discharged from the outlet of the first membrane separator to flow into the condenser when the combustible gas concentration detected by the first concentration analyzer is greater than or equal to a first concentration threshold; and when the concentration of the combustible gas detected by the first concentration analyzer is less than a first concentration threshold value, judging that the membrane separator works abnormally and carrying out fault treatment.
The liquid separated by the gas-liquid separator is treated, simultaneously, the uncondensed gas enters the membrane separator, the membrane separator can separate and enrich the residual mixed gas, most of the residual mixed gas is enriched by the combustible gas and is recycled to the condenser (as shown by a path D in figure 1), a small part of the gas is taken away by air, the concentration of the gas is low and cannot reach the explosion limit of the combustible gas, and the gas can be discharged to the outside only by subsequent treatment. The embodiment of the disclosure detects the concentration of the combustible gas after enrichment through the membrane separator, if the concentration is greater than or equal to a first concentration threshold value, the membrane separator works normally, at the moment, the concentration of the outlet of the first membrane separator is higher, and the concentration of the combustible gas at the outlet of the second membrane separator is lower, so that the safety of the combustible gas entering the waste gas treatment part subsequently is ensured, and the gas flowing out of the outlet of the first membrane separator can flow into the condenser again for circulation treatment. If the measured concentration is less than the first concentration threshold, the membrane separator operates abnormally, and the combustible gas at the outlet of the first membrane separator may have a low concentration while the combustible gas at the outlet of the second membrane separator may have a high concentration, thereby possibly bringing a risk to the subsequent treatment of the exhaust gas treatment section. At this time, a failure process is required. The fault processing may include one or more of the following processing modes: starting fault finding work to find a fault source; sending alarm information; notifying an operator; and stopping for maintenance. The manner of finding the source of the fault may include automatic machine finding or by human finding. The type of the alarm information is not limited to a specific form, and the alarm information can be sent out in a form of alarm sound, screen display or other alarm modes. The manner of notifying the operator may include automatically dialing a phone call or sending a short message to the operator. When the machine is stopped for maintenance, the whole circulation treatment can be stopped. Therefore, the combustible gas device according to the embodiment of the disclosure can ensure that the treatment process is safely and effectively carried out through the concentration detection feedback information on the basis of efficiently treating the combustible gas.
For example, the choice of the first concentration threshold may be influenced by a number of factors. For example, the first concentration threshold may be based on the type of combustible gas collected, the originally collected combustible gas concentration, the collection speed, and the like. Therefore, the first concentration threshold value may be set according to actual conditions.
In some embodiments, the membrane separator comprises a gas filtration membrane, the first and second membrane separator outlets being located on either side of the filtration membrane, for example, the first membrane separator outlet being located on the side enriched in the combustible gas. Since the molecular size of combustible gas such as hydrocarbon combustible gas is different from that of gas in air, the mixed gas of the combustible gas and the air can be separated by selecting a gas filtering membrane with a proper pore size, the combustible gas is enriched on one side of the filtering membrane, and the combustible gas is not arranged on the other side of the filtering membrane or the concentration of the combustible gas is reduced. For the selection of the filtering membrane, any suitable gas filtering membrane can be selected, and the embodiments of the present disclosure are not particularly limited, and therefore, will not be described in detail.
FIG. 2 is a block diagram of a combustible gas processing apparatus according to further embodiments of the disclosure. In comparison with the combustible gas processing apparatus shown in fig. 1, the combustible gas processing apparatus shown in fig. 2 gives an example of the composition of the liquid processing portion (the portion surrounded by the upper dotted-line rectangular frame) and an example of the composition of the exhaust gas processing portion (the portion surrounded by the lower dotted-line rectangular frame). In addition, the combustible gas treatment apparatus shown in fig. 2 further includes a liquid storage tank located between the gas-liquid separator and the liquid treatment section, a level gauge located in the liquid storage tank, a second concentration analyzer located at an outlet of the second membrane separator, and a third concentration analyzer located between the adsorption tank and the blower.
As shown in fig. 2, the liquid treatment unit includes a pump line and a gasification burner connected in sequence, and the gasification burner is connected to the liquid outlet of the gas-liquid separator through the pump line. The gasification burner is configured to perform gasification combustion of an inflow liquid and discharge a combusted gas to the outside (e.g., the atmosphere). For example, the pump line may deliver liquid from the liquid storage tank to the gasification burner. For example, after the liquid combustible gas reaches the gasification burner, the liquid combustible gas is converted into the gaseous state, the phase change conversion from the liquid state to the gas is realized, and after an ignition switch is started, the combustible gas can be safely ignited to generate carbon dioxide and water which are discharged into the atmosphere.
As shown in fig. 2, the exhaust gas treatment part includes an adsorption tank and a blower connected in sequence from the outlet of the second membrane separator, and a vacuum pump connected to the adsorption tank. The vacuum pump is also connected to the condenser inlet and is configured to draw and deliver gas adsorbed by the adsorption tank to the condenser.
In some examples, the adsorption tank consists essentially of an activated carbon material through which combustible gas molecules (e.g., hydrocarbon gas molecules) are adsorbed by the activated carbon and are present in the pores of the activated carbon material as low concentrations of the gas molecules pass.
In some examples, the fan is the power source for the adsorption tank to effect adsorption of combustible gas molecules by the activated carbon, and the gas discharged from the outlet of the second membrane separator may flow through the adsorption tank by the suction provided by the fan. Meanwhile, the fan discharges the gas discharged after the adsorption treatment by the adsorption tank to the outside (e.g., the atmosphere).
In some examples, the adsorption tank has a limited amount of activated carbon and thus has a limited capacity for adsorbing combustible gases. When the adsorption box is adsorbed for a period of time, the adsorption box no longer has adsorption capacity. The blower can be turned off, the vacuum pump is started, molecules of the combustible gas adsorbed in the adsorption tank are desorbed by a pressure swing desorption mode, and the molecules are conveyed to the condenser through the pipeline G to enter the gas-liquid two-phase cyclic conversion process again.
As shown in fig. 2, the second concentration analyzer is located between the outlet of the second membrane separator and the exhaust gas treatment section and is configured to measure the combustible gas concentration in the gas from the outlet of the second membrane separator.
For example, the combustible gas treatment apparatus can further include a second controller in communication with the second concentration analyzer. The second controller is configured to determine that the membrane separator is working abnormally and perform fault handling when the combustible gas concentration detected by the second concentration analyzer is greater than or equal to a second concentration threshold; when the combustible gas concentration detected by the second concentration analyzer is less than the second concentration threshold value, it is determined that the membrane separator is operating normally and gas discharged from the outlet of the second membrane separator is caused to flow into the exhaust gas treatment portion. The fault handling here is the same as or similar to the fault handling described above and is not described here again.
As mentioned above, the outlet of the second membrane separator is located on the opposite side of the gas filtration membrane to the side enriched with combustible gas, and therefore, the concentration of combustible gas at the outlet of the second membrane separator should be relatively low under normal operation of the second membrane separator. For example, the second concentration threshold is less than the explosive limit of the combustible gas being collected to ensure that the portion of the gas can be safely treated by the exhaust treatment section. For example, the second concentration threshold is smaller than the first concentration threshold described above.
As shown in fig. 2, the third concentration analyzer is located between the adsorption tank and the fan, and is configured to measure the combustible gas concentration in the gas discharged from the adsorption tank.
For example, the combustible gas treatment apparatus can further include a third controller in communication with the third concentration analyzer. The third controller is configured to determine that the adsorption tank is operating normally and cause gas discharged from the adsorption tank to enter the fan when the combustible gas concentration detected by the third concentration analyzer is less than a third concentration threshold value; and when the concentration of the combustible gas detected by the third concentration analyzer is greater than or equal to a third concentration threshold value, judging that the adsorption box works abnormally and carrying out fault treatment. The fault handling here is the same as or similar to the fault handling described above and is not described here again.
For example, when the adsorption capacity is sufficient, the combustible gas concentration value measured by the third concentration analyzer is extremely low; when the adsorption capacity is insufficient, the concentration of the third concentration analyzer will be significantly increased. For example, the third concentration threshold is smaller than the second concentration threshold.
As shown in fig. 2, a liquid storage tank is located between the liquid outlet of the gas-liquid separator and the liquid treatment section. After passing through the gas-liquid separator, the liquid combustible gas is collected by the liquid storage tank, the liquid storage tank has a low-temperature maintaining function, the liquid combustible gas is stored after entering, and the volumetric capacity or the volumetric state of the liquid tank can be monitored through the liquid level meter. The production rate of the liquid combustible gas in the gas treatment process is possibly less than the treatment speed of the subsequent liquid treatment part on the liquid combustible gas, so that the liquid is temporarily stored in the liquid storage tank, the subsequent liquid treatment part is started after a certain amount of liquid is reached, and the efficient cooperation of all parts can be ensured for treatment. For example, a level gauge may measure the volumetric capacity or state of the tank and when the liquid volume rate (the ratio of the volume of liquid stored to the total volume of the tank) exceeds 85%, the gauge will transmit a level signal to a subsequent device.
For example, a combustible gas treatment device according to an embodiment of the disclosure may further include a fourth controller connected to the level gauge. The fourth controller is configured to start the pump circuit to convey the liquid in the liquid storage tank to the gasification burner for gasification combustion when the ratio of the liquid volume detected by the liquid level meter to the total volume of the liquid storage tank is larger than a preset ratio. For example, the predetermined ratio herein may be 85%, but the embodiment according to the present disclosure is not limited thereto, and may also be 50%, 60%, 70%, 90%, and the like, for example.
The four controllers, i.e., the first to fourth controllers, have been exemplified in the above-described embodiment, however, the embodiment according to the present disclosure is not limited thereto. As shown in fig. 3, the solid line part shows the case of the above embodiment, that is, the first concentration analyzer is connected to the first controller, the second concentration analyzer is connected to the second controller, the third concentration analyzer is connected to the third controller, and the liquid level meter is connected to the fourth controller, and the first to fourth controllers respectively implement the above corresponding control functions. Further, the dashed-line portion of fig. 3 shows another case where the first concentration analyzer, the second concentration analyzer, the third concentration analyzer, and the liquid level meter are connected to one controller. In this case, the respective control functions are implemented by one controller in a unified manner, for example, one controller includes a controller module capable of implementing the various functions described above. Further, although not shown in the drawings, it is also possible that some of the first concentration analyzer, the second concentration analyzer, the third concentration analyzer, and the level gauge are connected to one controller, and the other parts are connected to another controller. Therefore, the first to fourth controllers according to the embodiments of the present disclosure may refer to four separate controllers, may refer to different functional modules of a single controller, or may refer to two or three controllers including the above functional modules. The various controllers described above may be integrated into the first to fourth concentration analyzers and the level gauge, respectively, or provided separately therefrom and connected in wired or wireless communication, and the embodiment of the present disclosure is not particularly limited thereto.
In the embodiments of the present disclosure, the various controllers or controller modules described above may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be constructed as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different physical locations which, when joined logically together, comprise the module and achieve the stated purpose for the module.
Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within the modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices, and may exist, at least partially, merely as electronic signals on a system or network.
When a module can be implemented by software, considering the level of existing hardware technology, a module implemented by software may build a corresponding hardware circuit to implement a corresponding function, without considering cost, and the hardware circuit may include a conventional Very Large Scale Integration (VLSI) circuit or a gate array and an existing semiconductor such as a logic chip, a transistor, or other discrete components. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.
There is also provided, in accordance with some embodiments of the present disclosure, a combustible gas treatment method using the above combustible gas treatment apparatus. As shown in fig. 4, the combustible gas processing method includes: introducing the collected combustible gas mixture into the condenser through the condenser inlet; introducing the gas condensed by the condenser into the gas-liquid separator through the inlet of the gas-liquid separator to perform gas-liquid separation; introducing liquid obtained after gas-liquid separation into the liquid treatment part for treatment, and introducing gas obtained after gas-liquid separation into the membrane separator through the inlet of the membrane separator for treatment; the gas introduced into the membrane separator is processed by the membrane separator and divided into a first part and a second part, the combustible gas content of the first part is larger than that of the second part, the first part enters the condenser through the outlet of the first membrane separator, and the second part enters the waste gas processing part through the outlet of the second membrane separator for processing. In addition, the combustible gas treatment method according to the embodiment of the disclosure further includes performing combustible gas concentration detection on the first part into which the first part is separated after being treated by the membrane separator to obtain a first concentration value, and when the first concentration value is greater than or equal to a first concentration threshold value, determining that the membrane separator is working normally and allowing gas discharged from an outlet of the first membrane separator to flow into the condenser; and when the first concentration value is smaller than the first concentration threshold value, judging that the membrane separator works abnormally and carrying out fault treatment.
For example, referring to fig. 1, the collected combustible gas or mixture of combustible gas and air enters a condenser through a pipe a, and then is subjected to separation of gas and liquid by a gas-liquid separator. The liquefied part enters a liquid treatment part through a pipeline B for liquid treatment, and the liquefied part enters a membrane separator through a pipeline C, and then enters two treatment paths of gas treatment and waste gas treatment: because the gas filtering membrane of the membrane separator has size selectivity and is selectively filtered and enriched according to the size of gas molecules, a part of the enriched combustible gas enters the condenser again through the pipeline D, and the other part of the gas enters the waste gas treatment part for treatment through the pipeline E.
And the gas passing through the pipeline D is detected by the first concentration analyzer, if the concentration is greater than or equal to the first concentration threshold value, the normal work of the membrane separator is judged, and the gas of the pipeline D continues to enter the pipeline A and then enters the system for circulation again.
And the gas passing through the pipeline D is detected by the first concentration analyzer, if the concentration is less than a first concentration threshold value, the working abnormality of the membrane separator is judged, after the system monitors the signal, the fault self-detection module starts working, automatically searches a fault source, sends alarm information, displays a fault code on a control screen, and sends a short message to inform an operator of stopping for maintenance. If shut down, the entire cycle is terminated.
In some examples, the combustible gas treatment method further comprises the steps of detecting the concentration of the combustible gas of the second part which is separated after being treated by the membrane separator to obtain a second concentration value, and when the second concentration value is larger than or equal to a second concentration threshold value, judging that the membrane separator works abnormally and performing fault treatment; when the second concentration value is less than the second concentration threshold value, it is determined that the membrane separator is operating normally and gas discharged from the outlet of the second membrane separator is caused to flow into the exhaust gas treatment section.
For example, referring to fig. 2, the gas in the pipeline E is detected by the second concentration analyzer, if the concentration is greater than or equal to the second concentration threshold, it is determined that the membrane separator is working abnormally, and after the system monitors the signal, the fault self-checking module starts working to automatically find a fault source, and sends out an alarm message, and displays a fault code on the control screen, and sends out a short message to notify an operator to stop for maintenance. If shut down, the entire cycle is terminated.
And the gas in the pipeline E is detected by the second concentration analyzer, if the concentration is less than a second concentration threshold value, the membrane separation work is judged to be normal, and the gas enters the adsorption box for adsorption.
In some examples, the exhaust gas treatment part treating the introduced gas includes: adsorbing the gas entering the waste gas treatment part through an adsorption tank to adsorb at least part of combustible gas, and discharging the gas which is not adsorbed; the adsorbed gas is sucked out by a vacuum pump and introduced into the condenser for circulation.
For example, referring to fig. 2, the gas discharged from the outlet of the second membrane separator enters the adsorption tank through a pipe E, the adsorption tank is adsorbed by at least part of the combustible gas, and the gas that is not adsorbed is discharged from the outlet of the adsorption tank through a pipe E to the outside through a fan. The adsorption capacity of the adsorption box is limited, but the adsorption capacity is weakened after a certain amount of combustible gas molecules are absorbed. The combustible gas is pumped out by a vacuum pump and enters the condenser again through a pipeline G for circulation treatment.
In some examples, the combustible gas treatment method further comprises the steps of carrying out combustible gas concentration detection on the unadsorbed gas discharged from the adsorption box to obtain a third concentration value, and when the third concentration value is smaller than a third concentration threshold value, judging that the adsorption box works normally and discharging the gas discharged from the adsorption box to the outside; and when the third concentration value is greater than or equal to the third concentration threshold value, judging that the adsorption box works abnormally and carrying out fault treatment.
For example, if the third concentration analyzer detects that the concentration of the combustible gas in the pipeline F is less than a third concentration threshold, it is determined that the adsorption tank is normally adsorbed, and the adsorption tank is safely emptied under the action of the fan; and simultaneously, when the adsorption box adsorbs the first preset time, the vacuum pump starts to work for a second preset time, combustible gas molecules of the adsorption box are sucked out and reach the pipeline A through the pipeline G, and the combustible gas enters the system again for circulation. The first predetermined time and the second predetermined time herein are determined according to the adsorption capacity of the adsorption tank and the suction capacity of the vacuum pump, and are not particularly limited thereto according to the embodiment of the present disclosure. For example, the first predetermined time may be several hours, and the second predetermined time may be several minutes to ten and several minutes or several tens minutes.
For example, the blower and the vacuum pump may be operated alternately, so that the gas transport in the lines F and G may be performed alternately.
If the third concentration analyzer detects that the concentration is greater than or equal to a third concentration threshold value, the system judges that the adsorption of the adsorption tank is abnormal, and after the system monitors the signal, the fault self-checking module starts to work, automatically searches a fault source, sends alarm information, displays a fault code on a control screen, and sends a short message to inform an operator of stopping for maintenance. If shut down, the entire cycle is terminated.
In some examples, treating the liquid introduced into the liquid treatment section includes: the liquid is introduced into a gasification burner through a pump line to be gasified and burned, and gas generated after the burning is discharged to the outside.
In some examples, the combustible gas treatment method further comprises storing the liquid in a liquid storage tank between introducing the liquid into the liquid portion; and detecting the liquid volume state of the liquid storage tank, and starting the pump circuit to convey the liquid in the liquid storage tank to the gasification burner for gasification combustion when the ratio of the liquid volume to the total volume of the liquid storage tank is larger than a preset ratio.
For example, the combustible gas molecules are liquefied into liquid parts, enter a liquid storage tank through a pipeline B, enter a liquid treatment module, and the storage amount of liquid hydrocarbon in the liquid storage tank is increased along with the increase of working time and can be detected by a liquid level meter. If the liquid level meter detects that the capacity of the storage tank does not exceed a warning value, for example, the ratio of the liquid volume to the total volume of the liquid storage tank is greater than a preset proportion, the system is in a liquid storage working state, and the storage capacity of the liquid hydrocarbon is continuously increased or unchanged; if the liquid level meter detects that the capacity of the storage tank exceeds the warning value, the system judges that the liquid hydrocarbon storage tank needs to be released, the system automatically sends out an electronic signal, a pump circuit is started, the pump is started, liquid hydrocarbon is conveyed to a gasification burner through a pipeline to be gasified, the liquid hydrocarbon is automatically ignited and combusted, and carbon dioxide and water vapor generated after the combustion are emptied and safely disposed.
It should be noted that, in the combustible gas processing method according to the embodiment of the present disclosure, all parts that are not described may refer to the description in the combustible gas processing apparatus. For example, the first concentration threshold value, the second concentration threshold value, the predetermined ratio, the failure processing, and the like, which are involved in the embodiment of the combustible gas processing method, may all be referred to the description in the combustible gas processing apparatus; in addition, the technical effects of the combustible gas treatment method can also refer to the corresponding description of the combustible gas treatment device, and for the sake of brevity, the description is omitted here.
It should be noted that, in the embodiments of the present disclosure, the components of the combustible gas processing apparatus actually form a gas or liquid flow conduit, and the terms "close to", "away from", "between", and the like used herein refer to the positional relationship of the components in the conduit in which they are communicated, that is, the positional relationship on the flow path of the collected gas, and do not necessarily refer to the positional relationship in which the components are placed. Further, "connected" is also not limited to direct connections, but may be indirect connections. The combustible gas treatment device or the combustible gas treatment method according to the embodiment of the disclosure can be applied to treatment of various combustible gases. For example, it can be applied to the treatment of hydrocarbon combustible gas. The hydrocarbon gas is a generic term for hydrocarbon compounds containing carbon and hydrogen, and is a compound composed of carbon and hydrogen atoms, and mainly includes alkane, cycloalkane, alkene, alkyne, and aromatic hydrocarbon.
The following points need to be explained:
(1) in the drawings of the embodiments of the present disclosure, only the structures related to the embodiments of the present disclosure are referred to, and other structures may refer to general designs.
(2) Features of the disclosure in the same embodiment and in different embodiments may be combined with each other without conflict.
The above is only a specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present disclosure, and shall be covered by the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (17)
1. A combustible gas processing apparatus comprising:
a condenser comprising a condenser inlet and a condenser outlet;
the gas-liquid separator comprises a gas-liquid separator inlet, a gas-liquid separator liquid outlet and a gas-liquid separator gas outlet;
a liquid treatment section configured to treat liquid entering the liquid treatment section;
a membrane separator comprising a membrane separator inlet, a first membrane separator outlet, and a second membrane separator outlet;
an exhaust gas treatment section configured to treat gas entering the exhaust gas treatment section;
a first concentration analyzer connected between the first membrane separator outlet and the condenser inlet and configured to measure a combustible gas concentration in the gas from the first membrane separator outlet;
a first controller connected with the first concentration analyzer,
wherein the condenser outlet is connected with the gas-liquid separator inlet, the gas-liquid separator liquid outlet is connected with the liquid treatment part, the gas-liquid separator gas outlet is connected with the membrane separator inlet, the first membrane separator outlet is connected to the condenser inlet, the second membrane separator outlet is connected to the waste gas treatment part,
the first controller is configured to determine that the membrane separator is functioning normally and cause gas discharged from the outlet of the first membrane separator to flow into the condenser when the combustible gas concentration detected by the first concentration analyzer is greater than or equal to a first concentration threshold; and when the concentration of the combustible gas detected by the first concentration analyzer is less than the first concentration threshold value, judging that the membrane separator works abnormally and performing fault treatment.
2. The combustible gas treatment apparatus of claim 1 wherein the membrane separator comprises a gas filtration membrane, the first and second membrane separator outlets being located on either side of the filtration membrane, and the first membrane separator outlet being located on a side enriched in combustible gas.
3. The combustible gas processing apparatus according to claim 1, wherein the liquid processing portion comprises a pump line and a gasification burner connected in series, the gasification burner being connected to the gas-liquid separator liquid outlet through the pump line, the gasification burner being configured to perform gasification combustion of the inflowing liquid and discharge the combusted gas to the outside.
4. The combustible gas treatment device according to claim 1, wherein the exhaust gas treatment section comprises an adsorption tank and a blower connected in this order from the outlet of the second membrane separator, and a vacuum pump connected to the adsorption tank, the vacuum pump being further connected to the inlet of the condenser and configured to suck and convey the gas adsorbed by the adsorption tank to the condenser.
5. The combustible gas treatment device of claim 3 further comprising a liquid storage tank between the gas-liquid separator liquid outlet and the liquid treatment section configured to store liquid separated by the gas-liquid separator.
6. The combustible gas treatment device of any of claims 1-5 further comprising a second concentration analyzer located between the outlet of the second membrane separator and the exhaust gas treatment section and configured to measure the combustible gas concentration in the gas from the outlet of the second membrane separator.
7. The combustible gas processing apparatus of claim 4 further comprising a third concentration analyzer located between the adsorption tank and the fan and configured to measure the combustible gas concentration in the gas exhausted from the adsorption tank.
8. The combustible gas treatment apparatus of claim 5 further comprising a liquid level meter located in the liquid storage tank, the liquid level meter configured to detect a liquid volume condition of the liquid storage tank.
9. The combustible gas processing apparatus according to claim 6, further comprising a second controller connected to the second concentration analyzer and configured to determine that the membrane separator is operating abnormally and perform fault processing when the combustible gas concentration detected by the second concentration analyzer is greater than or equal to a second concentration threshold; when the combustible gas concentration detected by the second concentration analyzer is less than the second concentration threshold value, it is determined that the membrane separator is operating normally and gas discharged from the outlet of the second membrane separator is caused to flow into the exhaust gas treatment portion.
10. The combustible gas processing apparatus of claim 7, further comprising a third controller connected to the third concentration analyzer and configured to determine that the adsorption tank is operating properly and to cause gas discharged from the adsorption tank to enter the fan when the combustible gas concentration detected by the third concentration analyzer is less than a third concentration threshold; and when the concentration of the combustible gas detected by the third concentration analyzer is greater than or equal to the third concentration threshold value, judging that the adsorption box works abnormally and carrying out fault treatment.
11. The combustible gas processing apparatus of claim 8 further comprising a fourth controller coupled to the level meter and configured to activate the pump line to deliver liquid in the liquid storage tank to the gasification burner for gasification combustion when a ratio of a volume of liquid detected by the level meter to a total volume of the liquid storage tank is greater than a predetermined ratio.
12. A combustible gas treatment method using the combustible gas treatment apparatus according to claim 1, comprising:
introducing the collected combustible gas mixture into the condenser through the condenser inlet;
introducing the gas condensed by the condenser into the gas-liquid separator through the inlet of the gas-liquid separator to perform gas-liquid separation;
introducing liquid obtained after gas-liquid separation into the liquid treatment part for treatment, and introducing gas obtained after gas-liquid separation into the membrane separator through the inlet of the membrane separator for treatment;
the gas introduced into the membrane separator is subjected to the membrane separator treatment to be divided into a first portion and a second portion, the combustible gas content of the first portion being greater than that of the second portion,
the first part enters the condenser through the outlet of the first membrane separator, the second part enters the waste gas treatment part through the outlet of the second membrane separator for treatment, the combustible gas concentration of the first part divided after the treatment by the membrane separator is detected to obtain a first concentration value, when the first concentration value is larger than or equal to a first concentration threshold value, the membrane separator is judged to work normally, and gas discharged from the outlet of the first membrane separator flows into the condenser; and when the first concentration value is smaller than the first concentration threshold value, judging that the membrane separator works abnormally and carrying out fault treatment.
13. The combustible gas treatment method according to claim 12, wherein the second portion into which the second portion is separated after being treated by the membrane separator is subjected to combustible gas concentration detection to obtain a second concentration value, and when the second concentration value is greater than or equal to a second concentration threshold value, it is determined that the membrane separator is operating abnormally and fault treatment is performed; when the second concentration value is less than the second concentration threshold value, it is determined that the membrane separator is operating normally and gas discharged from the outlet of the second membrane separator is caused to flow into the exhaust gas treatment section.
14. The combustible object treatment method of claim 12 wherein the waste gas treatment section treating the introduced gas comprises:
adsorbing the gas entering the waste gas treatment part through an adsorption tank to adsorb at least part of combustible gas, and discharging the gas which is not adsorbed;
the adsorbed gas is sucked out by a vacuum pump and introduced into the condenser for circulation.
15. The combustible gas processing method according to claim 14, further comprising performing combustible gas concentration detection on non-adsorbed gas discharged from the adsorption tank to obtain a third concentration value, and when the third concentration value is less than a third concentration threshold value, determining that the adsorption tank is operating normally and discharging gas discharged from the adsorption tank to the outside; and when the third concentration value is greater than or equal to the third concentration threshold value, judging that the adsorption box works abnormally and carrying out fault treatment.
16. The combustible gas treatment method according to any one of claims 12 to 15, wherein the treating the liquid introduced into the liquid treatment section includes:
the liquid is introduced into a gasification burner through a pump line to be gasified and burned, and gas generated after the burning is discharged to the outside.
17. The combustible gas treatment method of claim 16 further comprising storing the liquid in a liquid storage tank prior to introducing the liquid into the liquid treatment section;
and detecting the liquid volume state of the liquid storage tank, and starting the pump circuit to convey the liquid in the liquid storage tank to the gasification burner for gasification combustion when the ratio of the volume of the liquid to the total volume of the liquid storage tank is larger than a preset ratio.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111362449.9A CN113893641A (en) | 2021-11-17 | 2021-11-17 | Combustible gas processing device and combustible gas processing method |
| PCT/CN2022/070061 WO2023087515A1 (en) | 2021-11-17 | 2022-01-04 | Combustible gas treatment apparatus and combustible gas treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111362449.9A CN113893641A (en) | 2021-11-17 | 2021-11-17 | Combustible gas processing device and combustible gas processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113893641A true CN113893641A (en) | 2022-01-07 |
Family
ID=79194581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111362449.9A Pending CN113893641A (en) | 2021-11-17 | 2021-11-17 | Combustible gas processing device and combustible gas processing method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113893641A (en) |
| WO (1) | WO2023087515A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000005575A (en) * | 1998-06-24 | 2000-01-11 | Terumo Corp | System and method for membrane life monitoring |
| CN201692748U (en) * | 2010-06-04 | 2011-01-05 | 大连欧科膜技术工程有限公司 | Emission control and recovery device of organic gases |
| CN205730434U (en) * | 2015-12-17 | 2016-11-30 | 江苏金门能源装备有限公司 | A kind of novel collection olefiant gas degree of depth reclaims and emission control system |
| CN111437622A (en) * | 2020-04-07 | 2020-07-24 | 海湾环境科技（北京）股份有限公司 | Oil gas treatment system and method |
| WO2020179340A1 (en) * | 2019-03-07 | 2020-09-10 | 株式会社日本トリム | Hydrogen adding device and method for determining degree of wear in hydrogen-permeable membrane |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011092870A (en) * | 2009-10-30 | 2011-05-12 | Toyobo Co Ltd | Organic solvent recovery system |
| CN103277982B (en) * | 2013-05-21 | 2015-06-17 | 南京九思高科技有限公司 | Technology and device for circulating recycling of volatile organic compound in coating printing industry |
| KR101919302B1 (en) * | 2017-07-28 | 2018-11-19 | 한국전력공사 | System for detecting malfunction of carbon dioxide selective membrane plant |
| CN213160077U (en) * | 2020-07-28 | 2021-05-11 | 南京威盾能源环保有限公司 | Storage tank VOCs circulation does not have emission processing apparatus |
-
2021
- 2021-11-17 CN CN202111362449.9A patent/CN113893641A/en active Pending
-
2022
- 2022-01-04 WO PCT/CN2022/070061 patent/WO2023087515A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000005575A (en) * | 1998-06-24 | 2000-01-11 | Terumo Corp | System and method for membrane life monitoring |
| CN201692748U (en) * | 2010-06-04 | 2011-01-05 | 大连欧科膜技术工程有限公司 | Emission control and recovery device of organic gases |
| CN205730434U (en) * | 2015-12-17 | 2016-11-30 | 江苏金门能源装备有限公司 | A kind of novel collection olefiant gas degree of depth reclaims and emission control system |
| WO2020179340A1 (en) * | 2019-03-07 | 2020-09-10 | 株式会社日本トリム | Hydrogen adding device and method for determining degree of wear in hydrogen-permeable membrane |
| CN111437622A (en) * | 2020-04-07 | 2020-07-24 | 海湾环境科技（北京）股份有限公司 | Oil gas treatment system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023087515A1 (en) | 2023-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2353698B1 (en) | Method and equipment for selectively collecting gaseous process effluent | |
| RU2443763C2 (en) | Inflammable gas concentration system | |
| CN206868010U (en) | A kind of safety device for VOCs Treatment process | |
| CN105080278A (en) | Oil and gas recovery method | |
| CN108926974A (en) | A kind of security protection technique for VOCs Treatment process | |
| JP7198676B2 (en) | Rare gas recovery system and rare gas recovery method | |
| CN110227310A (en) | One kind VOCs containing styrene waste gas treatment device and method | |
| CN112657310A (en) | High-concentration tetrahydrofuran organic waste gas treatment process and device | |
| JP4847118B2 (en) | Method for purifying a large amount of exhaust gas containing lean volatile hydrocarbons | |
| CN112755719A (en) | Efficient organic waste gas recovery device and process | |
| CN113893641A (en) | Combustible gas processing device and combustible gas processing method | |
| CN209900994U (en) | Crude oil gas recovery processing system | |
| CN107854955B (en) | Hydrocarbon-containing waste gas recovery process and operation control method | |
| CN109876594B (en) | Air adsorption purification system in air separation device | |
| WO2023087506A1 (en) | Combustible gas recycling processing apparatus and combustible gas recycling processing method | |
| EP1052466A1 (en) | Pfc type gas recovery method and device | |
| CN104569203B (en) | A kind of ammonia monitoring, alarming based on chromatography and switched system and method | |
| CN204865444U (en) | Meticulous processing system in vapor recovery system rear end | |
| TWI698292B (en) | Volume-reducing device and method for recovering and utilizing volume-reduced derivative gas | |
| CN209076396U (en) | A kind of organic waste gas treatment device | |
| CN108434926A (en) | Organic waste gas treatment system | |
| CN216411071U (en) | A safety inspection device and adsorption equipment for ensureing VOCs adsorption tanks steady operation | |
| CN218687908U (en) | Tail gas discharging device | |
| CN106474878B (en) | Acrylonitrile tail gas centralized discharge system and acrylonitrile tail gas centralized discharge method | |
| CN218166464U (en) | Separation and adsorption device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220107 |
|
| RJ01 | Rejection of invention patent application after publication |