CN115433594B - Pressure adjusting method and device - Google Patents
Pressure adjusting method and device Download PDFInfo
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- CN115433594B CN115433594B CN202211192088.2A CN202211192088A CN115433594B CN 115433594 B CN115433594 B CN 115433594B CN 202211192088 A CN202211192088 A CN 202211192088A CN 115433594 B CN115433594 B CN 115433594B
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 267
- 230000001105 regulatory effect Effects 0.000 claims abstract description 138
- 238000003763 carbonization Methods 0.000 claims abstract description 53
- 239000012535 impurity Substances 0.000 claims abstract description 32
- 230000033228 biological regulation Effects 0.000 claims abstract description 18
- 230000008859 change Effects 0.000 claims abstract description 13
- 239000000571 coke Substances 0.000 claims description 62
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 51
- 238000007789 sealing Methods 0.000 claims description 27
- 238000004939 coking Methods 0.000 claims description 26
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000005192 partition Methods 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000003034 coal gas Substances 0.000 claims 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 45
- 239000011269 tar Substances 0.000 description 17
- 230000008569 process Effects 0.000 description 12
- 239000003245 coal Substances 0.000 description 6
- 230000001143 conditioned effect Effects 0.000 description 5
- 239000002893 slag Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000011273 tar residue Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B27/00—Arrangements for withdrawal of the distillation gases
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B41/00—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke
- C10B41/08—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke for the withdrawal of the distillation gases
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/04—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials
- C10K1/046—Reducing the tar content
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
- C10K1/121—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors containing NH3 only (possibly in combination with NH4 salts)
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control Of Non-Electrical Variables (AREA)
Abstract
The invention relates to a pressure regulating method and a device, which are used for conveying regulated gas through a gas inlet to pass through a closed container, changing the volume of a gas flow guide channel in the container by utilizing the liquid level of liquid in the container, and then transmitting the regulated gas to change the pressure of the regulated gas, so that the pressure value of the regulated gas returns to a threshold range. The gas part in the regulated gas flows out through the gas outlet, and the impurities in the regulated gas are mixed into the liquid and flow out from the liquid outlet at the bottom of the container. In this scheme, gas, liquid are carried through different routes respectively, and pressure regulation does not receive the mutual interference, and to the pressure regulation of gas that is transferred more can respond the true circumstances, can be applied to in adjusting and the stable low volume of tail gas of carbonization chamber gas pressure and diffuse the processing field.
Description
Technical Field
The invention relates to a gas pressure regulating method and a device, which can be widely applied to the fields of water-insoluble gas conveying, gas and impurity-containing and water mixture conveying and other application occasions where the pressure needs to be regulated in the gas flowing process, such as coke oven carbonization chamber pressure regulation in the field of coal coking, coke oven raw gas recovery system-gas collecting tube constant negative pressure stabilizing system, carbonization chamber pressure regulation, chemical plant tail gas diffusing stable emission and the like.
Background
In the process of conveying water-insoluble gas, gas and impurity-containing mixture and other fluids, the pressure may be unstable due to various reasons, and the working condition requires the pressure to be stable or at least to be kept floating within a certain range, but the pressure cannot be regulated timely, accurately and constantly by the existing pressure regulating device due to factors such as gas flow change, wave amplitude generated by water flow surge and the like, equipment corrosion caused by impurities, structural delay caused by impurities, large pressure change amplitude and the like.
For example, in the process of coking coal, a gas collecting pipe is generally used for collecting raw coke gas generated by heating coal in a coking chamber, and the generated raw coke gas varies along with the temperature change in a coke oven wall in the whole coking period, so that the pressure in the coking chamber is affected. The raw gas pressure in the carbonization chamber must be controlled within a reasonable range, when the raw gas generation amount is maximum, the raw gas guide amount should be increased to the gas collecting pipe in time, so that the too high raw gas pressure in the carbonization chamber is avoided, if the too high raw gas pressure in the carbonization chamber causes smoke and fire of the coke oven, a large amount of harmful raw gas leaks out, environmental pollution is caused, energy waste is caused, and a large amount of raw gas is leaked to the combustion chamber in series to damage the coke oven device; at the end of coking, the raw gas generation amount in the coking chamber is small, and when the pressure is too low, air enters the coking chamber to cause coke combustion, ash content increase and coke quality reduction. Therefore, in the production process, a carbonization chamber pressure adjusting device is generally required to be arranged between the carbonization chamber and the gas collecting pipe, and the pressure at the bottom of the carbonization chamber is ensured to be not lower than 5 Pa by controlling the flow of raw gas entering the gas collecting pipe.
The pressure regulating device generally used at present is provided with a single-hole carbonization chamber regulating and cutting device, and the flow area of raw gas is controlled by utilizing water seal structures such as a water seal turning plate, an arc turning plate and the like so as to change the flow of the raw gas. However, the raw gas contains not only gas but also graphite, condensed tar, tar slag, cooling circulation ammonia water and other impurities, so that the following problems exist in the prior pressure regulating device during the operation:
1. in order to control the pressure at the bottom of the carbonization chamber to meet the requirements, the pressure of the gas in the gas collecting tube can be generally monitored and controlled, so that the pressure in the gas collecting tube is kept at the positive pressure of 80 Pa to 120 Pa so as to control the pressure at the bottom of the carbonization chamber. The coke oven gas collecting pipe is communicated with each coke oven carbonization chamber bridge pipe and each valve body, and the coking chamber raw gas generation amount is changed greatly due to different coal charging time of each carbonization chamber, so that the pressure fluctuation of the coke oven gas collecting pipe is large. Even if the pressure of the gas collecting tube is stabilized within a positive pressure range of 80 Pa to 120 Pa, the pressure of the individual carbonization chambers is large, and raw gas is dissipated.
2. By utilizing the constant pressure and negative pressure regulating system of the gas collecting tube, a pressure regulating device is arranged between the gas collecting tube and the carbonization chamber, and the pressure regulating device is directly used for regulating water seal and the like, so that the integral diffusion surface of the liquid level is large due to large regulating area, and the instantaneous flow control frequently fluctuates, so that the pressure change relative to the carbonization chamber has hysteresis, and the controller cannot be accurately regulated. So that the pressure of the gas in the carbonization chamber fluctuates.
3. Impurities such as graphite, tar slag and the like are easy to adhere to the inner wall of the pressure regulating device and the water seal structure, so that the flow resistance of raw gas in the pressure regulating device is influenced, the pressure drop of the raw gas before and after passing through the pressure regulating device is further changed, and accurate regulation of the pressure in the carbonization chamber is inconvenient.
Disclosure of Invention
The invention solves the technical problems that the prior pressure regulating device is not suitable for timely, accurate and constant pressure regulation due to corrosion, lag in regulation and large regulation amplitude of the device, and provides a method and a device for timely, accurately and constantly regulating the pressure of water-insoluble gas, gas and fluid containing cooling water, condensed water and impurity mixture.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a method of pressure regulation, comprising:
the method comprises the steps that regulated gas with pressure to be regulated is conveyed through a gas inlet to pass through a closed container, the bottom of the container is provided with regulated gas insoluble liquid and a liquid outlet, a first liquid sealing space is formed at the upper part of the liquid, a gas outlet is formed at the side part of the container, an adjusting structure for forming one or more other liquid sealing spaces by the liquid level is fixed on the inner cavity wall of the container, the adjusting structure comprises a baffle plate connected with the inner cavity wall of the container and used for separating different liquid sealing spaces, and a liquid level automatic adjusting valve is arranged at the position outside the container of a liquid collecting pipeline at the liquid outlet;
the first liquid seal space is used as a gas flow guide channel which is communicated between the gas outlet and the gas inlet of the container, and the highest liquid level of the liquid is lower than the lowest liquid level of the gas outlet;
when the pressure of the regulated gas exceeds a set threshold value, the opening degree of the liquid level automatic regulating valve is automatically regulated, so that the liquid level is changed to form one or more other liquid seal spaces for preventing the regulated gas from flowing in, the volume of the first liquid seal space is changed, the air flow of the gas diversion channel is changed, and the air flow is transmitted to the regulated gas to change the pressure of the regulated gas, so that the pressure value of the regulated gas is returned to the threshold value range.
Preferably, the threshold includes a highest pressure threshold and a lowest pressure threshold.
Preferably, the gas inlet is arranged at the top of the container, the regulating structure is a plurality of parallel baffles with the fixed ends fixed at the gas inlet at the top of the container and the free ends facing the liquid level, a gas channel which can be blocked by liquid seal is formed between the baffles, the gas channel is a vertical channel part of the gas diversion channel, and under the condition that the vertical channels are all smooth, the heights of the openings from the free ends of the baffles to the liquid level are gradually increased along the direction from the gas inlet to the gas outlet.
Preferably, the regulated gas is a mixed gas mixed with impurities including cooling water, condensed water or a cooling mixture.
Preferably, the regulated gas is coke oven raw gas, and the liquid comprises ammonia water and condensed tar.
Preferably, the regulated gas is chemical plant tail gas.
Preferably, the impurities comprise ammonia water and condensed tar, a limit high-level detector and a limit low-level detector are arranged in the container to control the limit high-level and limit low-level of the ammonia water, and each gas channel is closed when the ammonia water level is located between the limit high-level and the limit low-level.
The pressure regulator comprises a closed container, wherein the top of the container is provided with a gas inlet of the regulated gas, the bottom of the container is provided with a liquid for liquid sealing and a liquid outlet, the side part of the container is provided with a gas outlet, the inner cavity wall is fixedly provided with a regulating structure, a container cavity at the upper part of the liquid forms a first liquid sealing space, the regulating structure is a structure for forming one or more other liquid sealing spaces through the liquid level of the liquid, the regulating structure comprises a baffle plate connected with the inner cavity wall of the container and used for separating different liquid sealing spaces, and a liquid sealing collecting pipeline at the liquid outlet of the container is provided with a liquid level automatic regulating valve at a position outside the container; and the first liquid seal space is used as a gas flow guide channel which is communicated between the gas outlet and the gas inlet of the container, and the highest height of the liquid level of the liquid is lower than the lowest height of the gas outlet.
Preferably, the regulating structure is a plurality of parallel baffles, the fixed ends of which are fixed at the gas inlet at the top of the container, the free ends of which face the liquid level, and gas channels which can be separated by liquid seals are formed between the baffles, the gas channels are vertical channel parts of the gas diversion channels, and under the condition that the vertical channels are smooth, the heights of the openings from the free ends of the baffles to the liquid level are gradually increased along the direction from the gas inlet to the gas outlet.
The utility model provides a coke oven single-hole carbonization chamber pressure regulator, includes a closed container, and the gas inlet of closed container inner chamber top is the raw coke oven gas that is sprayed, cooled through circulating aqueous ammonia, and the bottom has flourishing liquid seal space and the aqueous ammonia export of separation cooling aqueous ammonia, and the lateral part has gas export, and its inner chamber wall is fixed with adjusting structure, the liquid seal space of aqueous ammonia is first liquid seal space, adjusting structure is the structure that forms another one or more liquid seal space through the liquid level height of aqueous ammonia liquid, adjusting structure includes the baffle that is used for separating different liquid seal space with container inner chamber wall connection, the aqueous ammonia liquid seal current collecting pipeline of liquid exit is provided with the liquid level automatic regulating valve in the position outside the container; and the first liquid seal space is used as a gas flow guide channel which is communicated between the gas outlet and the gas inlet of the container, and the highest height of the liquid level of the liquid is lower than the lowest height of the gas outlet.
Preferably, the fixed end of the adjusting structure is fixed at the gas inlet at the top of the container, the free end faces to a plurality of parallel baffles of the liquid level, a gas channel which can be blocked by a liquid seal is formed between the baffles, and the gas channel is a vertical channel part of the gas diversion channel; under the condition that the vertical channel is unblocked, the heights of the openings from the free ends of the plurality of baffles to the liquid level are gradually increased along the direction from the gas inlet to the gas outlet.
The coke oven raw gas recovery system is characterized in that the pressure regulator is connected between the bridge pipe and the gas collecting pipe.
The constant negative pressure stabilizing system for the gas collecting tube comprises the gas collecting tube and a plurality of carbonization chambers connected with the gas collecting tube through a rising tube and a bridge tube valve body, and is characterized in that the pressure regulator for the single-hole carbonization chamber is further arranged between the bridge tube and the gas collecting tube of each carbonization chamber of the coke oven.
The regulator is the pressure regulator, and the tail gas comprises synthetic tail gas produced by synthesizing methanol or part of residual discharged gas from coke oven gas fault treatment of a coking plant.
The technical scheme of the invention has the beneficial technical effects that:
the liquid collecting pipeline at the liquid outlet is provided with a liquid level automatic regulating valve outside the container, the regulating valve is arranged outside the body, and for the regulator for the coke oven carbonization chamber, the ammonia water pipeline can be directly discharged to the gas collecting pipe or provided with a collecting pipe for sending ammonia water circulation groove. After passing through the vertical channel of the partition plate, the cooled raw coke oven gas is separated from cooling circulating ammonia water and condensed tar at the bottom of the regulator, and the raw coke oven gas is recycled to the gas collecting pipe through the gas outlet channel of the regulator body, namely, the condensed tar and the ammonia water enter the bottom of the gas collecting pipe through the ammonia water liquid level automatic valve. The gas and the liquid respectively pass through different paths, the pressure adjustment is not mutually interfered, and the pressure adjustment of the gas can more reflect the real situation.
(the valve body can be additionally connected with the liquid and the liquid outlet, and the valve body is connected with the gas collecting pipe again so as to facilitate the turn-off of raw gas and the cleaning of the regulator body, the ammonia liquid level automatic regulating valve and the ammonia pipeline).
After the raw gas and the cooling circulating ammonia water are input into a regulator, graphite, tar residue, condensed tar and the like carried by the raw gas and the circulating ammonia water directly fall into the ammonia water at the lower part in a container; raw gas flows out from the gas outlet of the container directly along the gas diversion channel. The container in the scheme is communicated between each carbonization chamber and the gas collecting tube, and the raw gas pressure of each carbonization chamber is not lower than 5 Pa by measuring the raw gas pressure of the carbonization chamber and adjusting the outflow of the raw gas at the gas outlet of the container by utilizing the liquid level automatic regulating valve. Raw gas enters the gas collecting pipe through a gas outlet of the gas guide channel of the container, and the raw gas, cooled ammonia water and condensed tar are guided into the lower part of the gas collecting pipe through an ammonia water liquid level automatic regulating valve. The gas and the liquid are led into the gas collecting tube through different paths respectively, the pressure adjustment is not mutually interfered, and the adjustment of the gas can more truly and timely influence the pressure of the raw gas in the carbonization chamber.
Meanwhile, raw gas is taken as regulated gas to enter the container from a gas inlet at the top end of the container, impurities in the raw gas directly fall into ammonia water stored in the container along the vertical direction and are difficult to accumulate in a vertical channel, so that the influence of the impurities on gas flow is reduced, the pressure drop of the gas passing through the container is stable, the stable corresponding relation between the gas flow at a gas outlet of the container and the pressure at the bottom of the carbonization chamber is ensured, and the pressure at the bottom of the carbonization chamber can be accurately changed when the gas flow is regulated.
And secondly, the direction of the raw gas when the raw gas is conveyed towards the ammonia water liquid level is downward along the vertical direction, so that impurities in the raw gas can fully fall into the ammonia water in the container, the impurities are not easy to accumulate at the air inlet at the top end of the container and the side surface of the partition plate, and the maintenance is convenient.
And thirdly, the bottom end openings of the partition plates are gradually increased along the direction from the gas inlet to the gas outlet, and in the process of rising the liquid level of the liquid in the container, the bottom end openings of the partition plates can be closed one by one, so that the number of vertical channels for the regulated gas to flow in is reduced, and different liquid sealing spaces are formed. For different liquid seal spaces formed in the liquid level adjusting process, the change of the number of the vertical channels is equivalent to the simultaneous change of the size of the gas inlet of the container, so that the flow of the gas to be adjusted at the inlet of the container can be directly adjusted, and the pressure at the bottom of the coking chamber of the coke oven can be accurately controlled.
And (IV) the bottom edges of the side walls of the partition plates are not on the same horizontal plane, when the liquid level of the ammonia water in the container rises, the bottom end opening of the vertical channel can be gradually closed, namely, the bottom end opening of the vertical channel is reduced in a continuous adjustment mode, so that the situation that the liquid level of the ammonia water directly passes through the bottom end opening of the vertical channel, and the air pressure at the air inlet of the container is severely changed is avoided.
Drawings
FIG. 1 shows a cross-sectional view of a pressure regulator in accordance with an embodiment of the present invention;
FIG. 2 shows a top view of a pressure regulator in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view showing connection of a pressure regulator to a carbonization chamber in accordance with a first embodiment of the present invention;
fig. 4 shows a cross-sectional view of a pressure regulator in a second embodiment of the invention.
The reference numerals in the drawings:
1-a container; 11-gas inlet; 12-gas outlet; 13-a liquid outlet; 14-liquid sealing a collecting pipeline; 15-a liquid level automatic regulating valve; 2-a gas diversion channel; 21-a separator; 22-gas channels; 23-limit high level detector; 24-limit low level detector; 3-carbonization chamber; 4-riser; 5-bridge tube; and 6-a gas collecting tube.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, a pressure regulating method and apparatus according to the present invention will be described in further detail with reference to the accompanying drawings and detailed description. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for the purpose of facilitating and clearly aiding in the description of embodiments of the invention. For a better understanding of the invention with objects, features and advantages, refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that any modifications, changes in the proportions, or adjustments of the sizes of structures, proportions, or otherwise, used in the practice of the invention, are included in the spirit and scope of the invention which is otherwise, without departing from the spirit or essential characteristics thereof.
Example 1
The technical scheme of the pressure regulating method and the device according to the invention will be described in detail below with reference to fig. 1 to 3 and the specific embodiments.
As shown in fig. 1 to 3, a pressure adjusting method of the present embodiment includes:
the regulated gas with the pressure to be regulated is conveyed through a gas inlet 11 to pass through a closed container 1, the bottom of the container 1 is provided with a liquid with the regulated gas insoluble and a liquid outlet 13, the upper part of the liquid forms a first liquid sealing space, the side part of the container is provided with a gas outlet 12, the inner cavity wall of the container is fixedly provided with a regulating structure which forms one or more liquid sealing spaces by the liquid level height of the liquid, and a liquid collecting pipeline at the liquid outlet 13 is provided with a liquid level automatic regulating valve 15 at a position outside the container 1;
taking the first liquid sealing space as a gas diversion channel 2 which is communicated between a gas outlet 12 and a gas inlet 11 of the container 1, wherein the highest liquid level of the liquid is lower than the lowest liquid level of the gas outlet 12;
when the pressure of the gas to be regulated exceeds the set threshold, the opening of the liquid level automatic regulating valve 15 is automatically regulated, so that the liquid level is changed to form one or more other liquid seal spaces for preventing the gas to be regulated from flowing in, the volume of the first liquid seal space is changed, the air flow of the gas diversion channel 2 is changed, and the air flow is transmitted to the gas to be regulated to change the pressure of the gas to be regulated, so that the pressure value of the gas to be regulated is returned to the threshold range.
In this embodiment, the gas to be conditioned is a mixed gas containing cooling water, condensed water, and a cooling mixture. When the method is used for adjusting, the air to be adjusted in pressure is conveyed through the closed container 1, and the pressure of the air to be adjusted before being input into the container 1 is monitored. The impurities such as cooling water, condensed water and cooling mixture in the gas to be conditioned directly fall into the accumulated liquid in the container 1, and the liquid level of the liquid in the container 1 is raised. When the pressure of the regulated gas changes and deviates from the preset threshold range, the opening of the liquid level automatic regulating valve 15 is changed to regulate the liquid outflow speed in the container 1, and then the height of the liquid level in the container 1 is regulated.
Preferably, the threshold includes a highest pressure threshold and a lowest pressure threshold, the highest pressure threshold and the lowest pressure threshold define a threshold range, when the pressure of the regulated gas before being input into the container 1 is higher than the threshold range, the opening of the liquid level automatic regulating valve 15 is increased, so as to accelerate the outflow of the liquid in the container 1, further reduce the liquid level in the container 1, expand the volume of the first liquid seal space, and accelerate the outflow of the regulated gas, thereby making the pressure of the regulated gas fall back into the threshold range. When the pressure of the gas to be regulated before being input into the container 1 is lower than the threshold range, the opening of the liquid level automatic regulating valve 15 is reduced, the liquid outflow speed in the container 1 is slowed down, the liquid level in the container 1 is further improved, the volume of the first liquid seal space is reduced, and particularly, one or more additional liquid seal spaces are formed through the regulating structure, so that the outflow of the gas to be regulated is reduced and delayed, and the pressure of the gas to be regulated is raised back to the threshold range.
Preferably, the gas inlet 11 of the vessel 1 is arranged at the top of the vessel 1, and the adjustment structure comprises four (or more) vertically arranged baffles 21, the baffles 21 being parallel to each other. The top end and both sides of each partition 21 are fixed integrally with the container, and the bottom end (i.e., free end) of the partition 21 is directed into the container 1 at the gas inlet 11 of the container 1 toward the liquid level of the liquid in the container 1. One of the separators 21 is fixed at the gas inlet 11 of the container 1, and is close to the edge of the side wall of the gas outlet 12, the other several separators 21 are distributed on one side of the separator 21 away from the gas outlet 12, the four (or more) separators 21 are matched with the side wall of the container 1, four (or more) vertical gas channels 22 are respectively formed at the gas inlet 11 of the container 1, and the four (or more) gas channels 22 are vertical channel parts of the gas diversion channels 2.
When the impurity part in the regulated gas is input into the container 1 through the vertical channel, the gas channel 22 guides the regulated gas to flow along the vertical direction, so that the impurity directly falls into the liquid in the container 1 along the vertical direction and is not easy to accumulate on the side surfaces of the gas inlet 11 and the partition plate 21 of the container 1, thereby reducing the cleaning requirement of the container 1, facilitating maintenance and reducing the impurity in the regulated gas as much as possible. Since the impurities fall directly into the liquid in the container 1 and flow out from the liquid outlet 13 of the container 1; the gas portion of the gas to be conditioned flows out of the gas outlet 12 of the vessel 1, and by adjusting the volume of the first liquid-tight space, including by adjusting the liquid level to be higher than the free ends of the one or more baffles to form another one or more liquid-tight spaces, the flow of the gas portion of the gas to be conditioned can be directly controlled, thereby accurately adjusting the pressure of the gas to be conditioned.
Preferably, the heights of the bottom ends of the free ends of the respective separators 21 arranged in this order from the liquid surface (in the case where the liquid surface does not rise to the free end) rise successively in the direction approaching the gas outlet 12 of the container 1, so that the bottom end openings of the four gas passages 22 also rise successively in the direction approaching the gas outlet 12 of the container 1. The free ends of the adjacent partition plates 21 are not at the same level, when the liquid level of the liquid in the container 1 rises, the bottom end opening of the vertical channel between the adjacent partition plates 21 is gradually closed by the liquid in the container 1, i.e. the bottom end opening of the vertical channel can be adjusted in a continuous adjusting mode, so that the bottom end opening of the vertical channel is prevented from being directly and instantaneously exposed from the liquid or being penetrated by the liquid, and the situation can lead to severe change of the air pressure at the air inlet 11 of the container 1.
It will be appreciated that the above method may also be used to regulate the pressure within the apparatus that generates the gas to be regulated, the pressure of the gas to be regulated being able to be transferred to the interior of the apparatus that generates the gas when the pressure of the gas to be regulated is changed, thereby changing the pressure within the apparatus. In addition, the method can be applied to adjusting the pressure or flow of the gas without impurities, and only the volume of the gas diversion channel 2 is required to be adjusted, so that the flow of the gas is changed, and the pressure of the gas is influenced.
Preferably, the container 1 is also provided with a limit high-level detector and a limit low-level detector, when the regulator needs to be completely cut off, the two detectors are respectively used for monitoring the limit high-level and limit low-level of the liquid in the container 1, and the mounting positions of the limit high-level detector 23 and the limit low-level detector 24 are higher than the bottom end of any partition plate 21. Wherein, the vertical distance between the bottom of the baffle plate 21 with the highest bottom and the limit low liquid level detector 24 is 30-50mm; the vertical distance between the limit high level detector 23 and the limit low level detector 24 is 50mm. If the limit high liquid level detector 23 detects that the liquid level of the liquid in the container 1 exceeds the limit high liquid level, the liquid level automatic regulating valve 15 is opened to enable the liquid in the container 1 to flow out, so that the liquid level in the container 1 falls back; if the limit low liquid level detector 24 detects that the liquid level of the liquid in the container 1 is lower than the limit low liquid level, the liquid level automatic regulating valve 15 is closed, so that the liquid in the container 1 is prevented from continuously flowing out, and the liquid level of the liquid in the container 1 is kept unchanged. By controlling the level of liquid in the container 1 to be higher than the bottom end of the partition, each gas passage 22 can be closed.
The pressure regulating method disclosed by the scheme can be applied to the fields of coke oven carbonization chamber pressure regulation, coke oven raw gas recovery system-gas collecting tube constant negative pressure stabilizing system, carbonization chamber pressure regulation, chemical plant tail gas emission stabilizing discharge and the like in the field of coal coking. For example, when the pressure in the coking chamber 3 of the coke oven is regulated, the raw coke oven gas is used as the regulated gas, ammonia water is used as the liquid in the container 1, the pressure of the raw coke oven gas is changed by changing the size of the first liquid sealing space, and the pressure of the raw coke oven gas can be transmitted into the coking chamber 3, so that the pressure in the coking chamber 3 is changed.
The invention also provides a pressure regulator, which comprises a closed container 1, wherein the top of the container 1 is provided with a gas inlet 11 for inputting the regulated gas, and the side part of the container is provided with a gas outlet 12 for discharging the regulated gas. The container 1 contains liquid for liquid seal, the gas to be regulated is insoluble in the liquid, and the bottom of the container 1 is provided with a liquid outlet 13. In this embodiment, the liquid outlet 13 is opened along the horizontal direction and is communicated with the lowest part of the inner cavity of the container 1, the liquid outlet 13 is communicated with a liquid seal collecting pipeline 14, and the liquid seal collecting pipeline 14 is provided with a liquid level automatic regulating valve 15 at a position outside the container 1. The cavity of the container 1 positioned at the upper part of the liquid forms a first liquid sealing space, and the first liquid sealing space is used as a gas diversion channel 2 for communicating the gas inlet 11 and the gas outlet 12. An adjusting structure is also fixed in the container 1, and when the liquid level of the liquid changes, the liquid level of the liquid is matched with the adjusting structure to change the volume of the gas diversion channel 2.
In this embodiment, the automatic liquid level adjusting valve 15 can automatically adjust the opening of the valve according to the input signal, and regulate the outflow speed of the liquid in the container 1, and the automatic liquid level adjusting valve 15 may be a pneumatic valve or an electric valve. In addition, the liquid level automatic regulating valve 15 is arranged outside the container 1, when the container 1 is blocked or the liquid level automatic regulating valve 15 fails, the liquid level automatic regulating valve 15 can be conveniently detached, the container 1 is flushed, the blocked impurities in the container 1 are directly discharged from the liquid seal collecting pipeline 14, and the liquid level automatic regulating valve 15 is also convenient to replace and maintain.
Preferably, the adjusting structure comprises four (or more) baffles 21 installed at the gas inlet 11 at the top of the vessel 1 in the vertical direction, the four (or more) baffles 21 are parallel to each other, and the top end (i.e., fixed end) of each baffle 21 is fixed at the gas inlet 11 of the vessel 1, and the bottom end (i.e., free end) of the baffle 21 is inserted into the vessel 1 to be directed toward the liquid level of the liquid in the vessel 1. One of the separators 21 is fixed on the edge of the side wall of the gas inlet 11 of the container 1, which is close to the gas outlet 12, the other three separators 21 are distributed on one side of the separator 21, which is far away from the gas outlet 12, the four (or more) separators 21 are matched with the side wall of the container 1, four vertical gas channels 22 are respectively formed at the gas inlet 11 of the container 1, and the four (or more) gas channels 22 are vertical channel parts of the gas diversion channel 2. The heights of the free ends of the four (or more) separators 21 rise one by one in the direction approaching the gas outlet 12, and the heights of the bottom end openings of the four (or more) gas passages 22 rise in sequence.
When the regulated gas flows into the container 1 from the gas channel 22, the gas part in the regulated gas needs to bypass the baffle plate 21 and flows out from the gas outlet 12 of the container 1; the impurities contained in the regulated gas directly fall down along the vertical direction, and fall into the liquid at the bottom of the container 1, and when the regulated gas flows, the impurities are difficult to bypass the partition plate 21 to flow to the gas outlet 12 of the container 1, so that the impurities can be absorbed by the liquid in the container 1 as much as possible.
During the rise of the level of the liquid in the container 1, the volume of the gas guiding channel 2 gradually decreases. While the liquid level rises, each gas channel 22 can be sealed one by one, each sealed gas channel 22 forms a new liquid sealing space, and the other gas channels 22 which remain unblocked still belong to a part of the first liquid sealing space, namely, while the volume of the gas diversion channel 2 is reduced, the number of vertical channels in the gas diversion channel 2 is reduced, which is equivalent to changing the size of the gas inlet 11 of the container 1 at the same time, namely, the flow of the regulated gas at the inlet of the container 1 can be directly regulated, so that the pressure of the regulated gas is accurately controlled.
Referring to fig. 3, the invention also provides a raw coke oven gas recovery system, which comprises a riser pipe 4 connected with the carbonization chamber 3 for generating raw coke oven gas, and a gas collecting pipe 6 for collecting the raw coke oven gas. The rising pipe 4 is communicated with the gas collecting pipe 6 through the bridge pipe 5, and the pressure regulator is arranged between the bridge pipe 5 and the gas collecting pipe 6. The liquid in the container 1 is ammonia water, and the regulated gas is raw coke oven gas cooled by spraying the ammonia water and generated by the coke oven carbonization chamber 3. The gas to be regulated is sent downwards into the gas inlet 11 of the container 1 along the vertical direction, the impurities such as cooling water, condensed water, cooling mixture and the like in the gas to be regulated directly fall into the ammonia water at the bottom of the container 1 and are mixed into the ammonia water, the gas part in the raw gas needs to turn around the partition plate 21 and flows out from the gas outlet 12 of the container 1, and the gas part in the raw gas can be separated from the impurities by utilizing the system, so that the gas part of the raw gas is directly collected.
The invention also provides a pressure regulator of the single-hole carbonization chamber of the coke oven, which has the same structure as the pressure regulator, but the liquid contained in the container 1 is ammonia water, the regulated gas is raw coke oven gas which is generated by the carbonization chamber 3 and is cooled by spraying the ammonia water in the bridge pipe 5, and tar in the raw coke oven gas and tar which forms condensation in the cooling process are contained in the raw coke oven gas, so that tar residues, coal dust, cooling circulating ammonia water and condensed tar are contained in the raw coke oven gas. The coke oven carbonization chamber pressure regulator is arranged between the bridge pipe 5 and the gas collecting pipe 6, and when in use, the operation of the coke oven carbonization chamber pressure regulator is controlled according to the pressure in the communicated carbonization chamber 3, and the gas pressure of raw coke oven gas output by the carbonization chamber 3 is regulated, so that the pressure in the carbonization chamber 3 is influenced. In the operation process of the coke oven single-hole carbonization chamber pressure regulator, the ammonia water in the container 1 is gradually mixed with cooling circulation ammonia water and impurities such as condensed tar, tar slag, coal dust and the like.
For coke oven single-hole carbonization chamber pressure regulators, the liquid seal collecting pipeline 14 directly discharges discharged ammonia water to the gas collecting pipe 6. The cooled raw coke oven gas is separated from impurities (including cooling circulating ammonia water, condensed tar, tar slag, coal dust and the like) at the bottom of the regulator after passing through a gas channel 22 formed by a partition plate 21, the raw coke oven gas flows to a gas collecting tube 6 through a gas outlet 12 of a container 1 for recovery, the impurities enter the bottom of the gas collecting tube 6 through an ammonia water liquid level automatic valve and are remixed with the raw coke oven gas flowing out of the gas outlet 12 of the container 1, and the raw coke oven gas is subjected to subsequent purification treatment, so that the raw coke oven gas purifying treatment device can be adapted to the current raw coke oven gas purifying treatment device without adding new purifying treatment equipment or modifying the original purifying treatment device, and the implementation cost of the scheme is reduced. It should be noted that in actual use, the discharged ammonia water may be input to a header pipe, and the discharged ammonia water may be conveyed to the ammonia water circulation tank through the header pipe.
In the case of an empty furnace, for example, when coke pushing is required, it is required to ensure that the coking chamber 3 is separated from the gas collecting tube 6 by using the coke oven single-hole coking chamber pressure regulator, and at this time, the ammonia water level in the container 1 needs to be controlled between the liquid level limit high-level detector 23 and the limit low-level detector 24, so as to ensure that the ammonia water level can completely seal the four gas channels 22. The setting of the limit high liquid level can reduce and prevent the cooled ammonia water and condensed tar in the container 1 from flowing into the gas collecting tube beyond the outlet of the gas 12 of the container 1.
Referring to fig. 3, the invention also provides a constant negative pressure stabilizing system of the gas collecting tube, which comprises the gas collecting tube 6 and a plurality of carbonization chambers 3 (only one is shown in the figure) communicated with the gas collecting tube 6, wherein the carbonization chambers 3 are communicated with the gas collecting tube 6 through a rising tube 4 and a bridge tube 5, and the pressure regulator of the coke oven single-hole carbonization chamber 3 is arranged between the bridge tube 5 and the gas collecting tube 6. When the system works, the gas collecting tube 6 is maintained in a negative pressure state. In the coking process, the coal filled in the coking chamber 3 generates raw coke gas, and the pressure regulator of the single-hole coking chamber 3 of the coke oven can control the guiding quantity of the raw coke gas, so as to control the pressure of the gas in the coking chamber 3, realize the control of the pressure at the bottom of the coking chamber 3 to be not lower than 5 Pa, ensure that the coking chamber 3 is internally positive in the coking process, and further avoid air from being sucked into the coking chamber 3.
The invention also provides a regulator for the stable emission of the tail gas of the chemical plant, the structure of which is the same as that of the pressure regulator, and the pressure regulating method and the pressure regulator are applied to the field of the stable emission of the tail gas of the chemical plant. When the pressure regulating method and the pressure regulator in the scheme are utilized to treat the tail gas, the liquid contained in the regulator is selected as the liquid of insoluble tail gas, the tail gas is input through the gas inlet 11 of the container 1, and the gas outlet 12 of the container 1 is communicated with the diffusing ignition device. When the regulated gas is conveyed through the container 1, the flow of the tail gas flowing through the container 1 can be changed by adjusting the volume of the gas diversion channel 2, and the pressure of the tail gas is kept stable. The exhaust gas emission device has the advantages that the exhaust gas emission device can stably and continuously reduce the output exhaust gas when exhausting the exhaust gas, is good in safety effect, is not easy to temper, can ensure that the exhaust gas is fully combusted in the exhaust process, and protects the environment.
In the process of adjusting the liquid level, the liquid level in the container 1 is raised in at least two ways: 1. before the tail gas is input into the container 1, spraying and cooling the tail gas, inputting sprayed liquid into the container 1 along with the tail gas, supplementing the sprayed liquid into the container 1, and improving the liquid level of the liquid in the container 1; 2. the liquid is directly supplied into the container 1, and the liquid level of the liquid in the container 1 is raised.
The tail gas emission method widely used at present is to use a tail gas emission ignition method to isolate emission, and install an emission ignition device on a sealed water-sealed tank, wherein the water-sealed tank is communicated with a water storage tank. The air inlet of the diffusing ignition device is immersed below the liquid level of the water-sealed tank, and the air outlet of the diffusing ignition device is positioned outside the water-sealed tank. And (3) inputting the tail gas to be discharged to a liquid level in the water sealed tank, and accumulating the continuously-input tail gas in the water sealed tank to ensure that the air pressure in the water sealed tank is increased and the liquid in the water sealed tank is pushed to flow into the water storage tank. The liquid level in the water sealed tank is reduced until the air inlet in the diffusing ignition device is exposed above the liquid level, and the accumulated tail gas in the water sealed tank flows into the air inlet of the diffusing ignition device and flows out from the air outlet of the diffusing ignition device after ignition treatment. Along with the exhaust gas in the water sealed tank, the liquid level in the water sealed tank rises, and the exhaust gas again passes through the air inlet of the diffusing ignition device and is accumulated in the water sealed tank again to be discharged, and the exhaust gas is circulated in a reciprocating mode. In the process of isolating emission, the tail gas is emitted one by one, tempering is easy to occur, and meanwhile, the problem of insufficient combustion during the tail gas emission can be caused.
Example two
Referring to fig. 4, the difference between the present embodiment and the first embodiment is that the liquid outlet 13 in the present embodiment is opened along the vertical direction, the top end of the liquid outlet 13 is communicated with the lowest part of the inner cavity of the container 1, and the bottom end of the liquid outlet 13 is communicated with the liquid sealing collecting pipe 14. In this embodiment, the liquid outlet 13 is opened in a vertical direction, so that the liquid and impurities in the container 1 can flow out conveniently.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (14)
1. A method of pressure regulation, comprising:
the method comprises the steps that regulated gas with pressure to be regulated is conveyed through a gas inlet to pass through a closed container, the bottom of the container is provided with regulated gas insoluble liquid and a liquid outlet, a first liquid sealing space is formed at the upper part of the liquid, a gas outlet is formed at the side part of the container, an adjusting structure for forming one or more other liquid sealing spaces by the liquid level is fixed on the inner cavity wall of the container, the adjusting structure comprises a baffle plate connected with the inner cavity wall of the container and used for separating different liquid sealing spaces, and a liquid level automatic adjusting valve is arranged at the position outside the container of a liquid collecting pipeline at the liquid outlet;
the first liquid seal space is used as a gas flow guide channel which is communicated between the gas outlet and the gas inlet of the container, and the highest liquid level of the liquid is lower than the lowest liquid level of the gas outlet;
when the pressure of the regulated gas exceeds a set threshold value, the opening degree of the liquid level automatic regulating valve is automatically regulated, so that the liquid level is changed to form one or more other liquid seal spaces for preventing the regulated gas from flowing in, the volume of the first liquid seal space is changed, the air flow of the gas diversion channel is changed, and the air flow is transmitted to the regulated gas to change the pressure of the regulated gas, so that the pressure value of the regulated gas is returned to the threshold value range.
2. The pressure regulation method of claim 1, wherein the threshold comprises a highest pressure threshold and a lowest pressure threshold.
3. The pressure regulating method as claimed in claim 1 or 2, wherein the gas inlet is provided at the top of the container, the regulating structure is a plurality of parallel-arranged partitions with their fixed ends fixed at the gas inlet at the top of the container and free ends facing the liquid surface, a gas passage which can be blocked by a liquid seal is formed between the partitions, the gas passage is a vertical passage portion of the gas diversion passage, and the heights of the openings from the free ends of the plurality of partitions to the liquid surface are gradually increased in the direction from the gas inlet to the gas outlet in the case that the vertical passage is clear.
4. A pressure regulating method according to claim 3, wherein the regulated gas is a mixed gas mixed with impurities including cooling water, condensed water or a cooling mixture.
5. The method of claim 4, wherein the gas is coke oven raw gas and the liquid comprises ammonia and condensed tar.
6. The method of pressure regulation according to claim 4, wherein the regulated gas is chemical plant tail gas.
7. The method of pressure regulation according to claim 4 wherein said impurities include ammonia and condensed tar, and wherein said vessel has a limited high and low level detector mounted therein for controlling the limited high and low levels of ammonia, each of said gas passages being closed when the ammonia level is between said limited high and low levels.
8. The pressure regulator is characterized by comprising a closed container, wherein the top of the container is provided with a gas inlet of a regulated gas, the bottom of the container is provided with a liquid for liquid sealing and a liquid outlet, the side of the container is provided with a gas outlet, the inner cavity wall is fixedly provided with a regulating structure, a container cavity at the upper part of the liquid forms a first liquid sealing space, the regulating structure is a structure for forming one or more other liquid sealing spaces through the liquid level of the liquid, the regulating structure comprises a baffle plate connected with the inner cavity wall of the container and used for separating different liquid sealing spaces, and a liquid sealing collecting pipeline at the liquid outlet of the container is provided with a liquid level automatic regulating valve at a position outside the container; and the first liquid seal space is used as a gas flow guide channel which is communicated between the gas outlet and the gas inlet of the container, and the highest height of the liquid level of the liquid is lower than the lowest height of the gas outlet.
9. The pressure regulator according to claim 8, wherein the regulating structure is a plurality of parallel baffles with fixed ends fixed at the gas inlet at the top of the container and free ends facing the liquid surface, and a gas passage which can be blocked by a liquid seal is formed between the baffles, the gas passage is a vertical passage part of the gas diversion passage, and the heights of openings from the free ends of the baffles to the liquid surface are gradually increased along the direction from the gas inlet to the gas outlet under the condition that the vertical passages are all smooth.
10. The utility model provides a coke oven single-hole carbonization chamber pressure regulator, its characterized in that includes a airtight container, airtight container inner chamber top is the gas entry of raw coke oven gas through circulating aqueous ammonia spraying, cooling, the bottom has flourishing liquid seal space and aqueous ammonia export of separation cooling aqueous ammonia, the lateral part has coal gas export, its inner chamber wall is fixed with the regulation structure, the liquid seal space of aqueous ammonia is first liquid seal space, the regulation structure is the structure that forms another one or more liquid seal space through the liquid level height of aqueous ammonia liquid, the regulation structure includes the baffle that is used for separating different liquid seal space with container inner chamber wall connection, aqueous ammonia liquid seal current collecting pipeline of liquid exit is provided with the liquid level automatic regulating valve in the position outside the container; and the first liquid seal space is used as a gas flow guide channel which is communicated between the gas outlet and the gas inlet of the container, and the highest height of the liquid level of the liquid is lower than the lowest height of the gas outlet.
11. The single-hole carbonization chamber pressure regulator of coke oven according to claim 10, wherein the regulating structure is a plurality of parallel baffles with the free ends facing the liquid level, and a gas channel which can be blocked by a liquid seal is formed between the baffles, and is a vertical channel part of the gas diversion channel; under the condition that the vertical channel is unblocked, the heights of the openings from the free ends of the plurality of baffles to the liquid level are gradually increased along the direction from the gas inlet to the gas outlet.
12. A coke oven raw gas recovery system, characterized in that the pressure regulator of claim 8 or 9 is connected between the bridge pipe and the gas collecting pipe.
13. The constant negative pressure stabilizing system for the gas collecting tube comprises the gas collecting tube and a plurality of carbonization chambers connected with the gas collecting tube through a rising tube and a bridge tube valve body, and is characterized in that the single-hole carbonization chamber pressure regulator as claimed in claim 10 or 11 is further arranged between the bridge tube and the gas collecting tube of each carbonization chamber of the coke oven.
14. A chemical plant tail gas diffusing and stable discharging regulator, characterized in that the regulator is a pressure regulator as claimed in claim 8 or 9, and the tail gas comprises synthetic tail gas produced by synthetic methanol or part of gas discharged by coke oven gas fault treatment of a coking plant.
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| DE102010035154A1 (en) * | 2010-08-23 | 2012-02-23 | Uhde Gmbh | Apparatus and method for controlling the chamber pressure of coke oven chambers of a coke oven battery by means of adjustable aperture at the riser elbow openings in the raw gas template |
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