CN114719119B - Chemical safety protection cover with gas purification treatment - Google Patents
Chemical safety protection cover with gas purification treatment Download PDFInfo
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- CN114719119B CN114719119B CN202210363687.XA CN202210363687A CN114719119B CN 114719119 B CN114719119 B CN 114719119B CN 202210363687 A CN202210363687 A CN 202210363687A CN 114719119 B CN114719119 B CN 114719119B
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- conveying pipeline
- adsorption sponge
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- 239000000126 substance Substances 0.000 title claims abstract description 56
- 238000000746 purification Methods 0.000 title claims abstract description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000001179 sorption measurement Methods 0.000 claims abstract description 51
- 230000001681 protective effect Effects 0.000 claims abstract description 33
- 239000000243 solution Substances 0.000 claims abstract description 7
- 239000012670 alkaline solution Substances 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims description 52
- 238000007789 sealing Methods 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 241001233242 Lontra Species 0.000 claims description 21
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 238000004880 explosion Methods 0.000 claims description 7
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 208000032370 Secondary transmission Diseases 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 230000008961 swelling Effects 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 94
- 230000003014 reinforcing effect Effects 0.000 description 5
- 239000011521 glass Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 208000013883 Blast injury Diseases 0.000 description 1
- 208000018380 Chemical injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/17—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
-
- 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
- B01D53/04—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 with stationary adsorbents
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a chemical safety protection cover with gas purification treatment, which comprises a conveying pipeline, a protection outer cover, a sliding column and a purification ring, wherein the purification ring is arranged in the protection outer cover; the inside of the purification ring is provided with an activated carbon screen plate, a first adsorption sponge and a second adsorption sponge, the first adsorption sponge is positioned between the activated carbon screen plate and the second adsorption sponge, the inside of the first adsorption sponge is soaked with alkaline solution, and the inside of the second adsorption sponge is soaked with organic solution; two groups of water-swelling rubber ferrules which are symmetrically arranged are embedded and installed on the inner wall of the protective outer cover. According to the invention, the purification ring, the activated carbon net plate, the first adsorption sponge and the second adsorption sponge are arranged, so that leaked gas passes through the activated carbon net plate, the first adsorption sponge and the second adsorption sponge in sequence at the early stage of pipeline leakage of the conveying pipeline due to cracks, and the leaked gas can be purified.
Description
Technical Field
The invention relates to the technical field of chemical pipeline safety, in particular to a chemical safety protection cover with gas purification treatment.
Background
In the chemical industry field, the transportation operation of a large amount of chemical gas is generally involved, wherein the chemical gas transportation involves a large amount of pipeline laying, and a safety protection cover is needed in the process to protect the chemical transportation pipeline, so that even if pipeline leakage occurs in the process of transporting the chemical transportation pipeline, the chemical transportation pipeline can still play a role in corresponding protection treatment, and further gas explosion and chemical injury caused by the chemical gas leakage are avoided.
The existing chemical pipeline safety protection equipment has the defects that:
the patent document CN214745026U discloses a chemical pipeline safety shield which comprises a shield body and an alarm device, wherein the shield body comprises an upper safety shield and a lower safety shield, the upper safety shield and the lower safety shield are arranged on the outer sides of connecting joints of two chemical pipelines, the upper safety shield and the lower safety shield are connected through bolts, two fixed groups are arranged on the inner wall of the shield body and are respectively positioned on the outer sides of the two chemical pipelines and used for fastening the shield body on the outer sides of the connecting joints, when the two fixed groups fasten the shield body on the outer sides of the two chemical pipelines, one ends, far away from each other, of the two fixed groups are respectively used for sealing the two ends of the shield body, the alarm device is arranged on the outer wall of the lower safety shield, and an adsorption layer for adsorbing harmful gases in the chemical pipelines is arranged on the inner wall of the shield body; the protective cover is quickly arranged on the outer side of the connecting joint, can be quickly disassembled and conveniently replaced, is provided with an alarm device and can quickly position a leakage source, and the protective cover detects whether gas leaks or not by judging the PH value of a solution when in use, but chemical gas is not limited to acid gas and organic gas, and under the condition, effective purification treatment is difficult to realize, so that the purification treatment effect of the protective cover is limited;
patent document CN211821755U discloses a safety shield of chemical pipeline, "including the upper shield body and lower shield body, upper shield body inner wall is connected with left inner shell through a plurality of first spring elastic connection, and a plurality of first spring all is located the inner wall that the upper shield body is close to the left end, lower shield body inner wall is connected with right inner shell through a plurality of second spring elastic connection, and a plurality of the second spring all is located the inner wall that the lower shield body is close to the right-hand member, the inner wall fixedly connected with a plurality of buffer blocks that the upper shield body is close to the right-hand member, the inner wall fixedly connected with a plurality of buffer blocks that the lower shield body is close to the left end, upper shield body lateral wall intercommunication is equipped with the blast pipe, lower shield body lateral wall intercommunication is equipped with the fluid-discharge tube, upper shield body both sides wall and the equal fixedly connected with installation piece of lower shield body both sides wall. The device is not easy to damage when being impacted by leakage materials, and the corrosion of rainwater to bolts and nuts can be prevented, so that the stability of the device is guaranteed;
the patent document CN212203610U discloses a safety shield for chemical pipelines, which comprises a shield main body, a left half cover, a right half cover, a push plate and a warning device, wherein the middle of the shield main body is fixedly connected with a pipeline, the top end of the shield main body is movably connected with the left half cover, the bottom of one side of the left half cover is fixedly connected with a hinge column, one side of the hinge column is fixedly connected with the right half cover, the top of the left half cover is movably connected with the push plate, the top end of the push plate is movably connected with a clamping column, a connecting plate in the clamping column drives the fixing column and a spring to pull up, a user pushes the push plate to the other side, after the push plate pushes the fixing column for a certain distance, the top of the left half cover is exposed out of transparent glass, the user can directly observe the pipeline connecting position through the transparent glass, the user can intuitively know the pipeline connecting position before prompting by the warning device, meanwhile, the danger caused by the user detaching the shield main body due to daily observation of the pipeline connecting position is reduced, the shield has wide development prospect in future, the design of the clamping column and the connecting plate enables the transparent glass pipeline to conveniently observe the pipeline connecting position, the corresponding harmful gas leakage can not be effectively treated in the pipeline, and the inside the pipeline can not be effectively treated;
patent document CN212605309U discloses a safety shield of chemical pipeline, "including the bottom plate, the upside fixedly connected with of bottom plate two backup pads that the symmetry set up, the upside of bottom plate is equipped with the arc wall that is used for placing the pipeline, the upside of arc wall is equipped with the protection machanism that prevents the pipeline impaired, the downside of bottom plate is equipped with the moving mechanism who is used for pipeline, the inside of bottom plate is equipped with the fixture that is used for preventing pipeline rocks at the removal in-process. Structural design is reasonable, can conveniently remove chemical pipeline, and has shock attenuation and fixed effect at the removal in-process, prevents that chemical pipeline from taking place to rock when removing, leads to the pipeline impaired, brings convenient "for the expansion of installation work, and this protection casing is when using, guarantees the security of pipeline through external shock attenuation fixed measure, but when the inside a large amount of gas leakage that takes place of pipeline, is difficult to realize the effective handling of Xie Gelu gas in the short time, influences pipeline transportation safety.
Disclosure of Invention
The invention aims to provide a chemical safety shield with gas purification treatment so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the chemical safety protection cover with the gas purification treatment comprises a conveying pipeline, a protection outer cover, a sliding column and a purification ring, wherein the purification ring is arranged in the protection outer cover;
the inside of the purification ring is provided with an activated carbon screen plate, a first adsorption sponge and a second adsorption sponge, the first adsorption sponge is positioned between the activated carbon screen plate and the second adsorption sponge, the inside of the first adsorption sponge is soaked with alkaline solution, and the inside of the second adsorption sponge is soaked with organic solution;
the inner wall of the protective outer cover is embedded with two groups of water-swelling rubber ferrules which are symmetrically arranged, and the water-swelling rubber ferrules are positioned on two sides of the purification ring.
Preferably, the inside of protecting the dustcoat is run through and is equipped with the sliding tray that the equidistance was arranged, the tail end of sliding tray is located the both sides of purifying the circle, the slip post is installed to the inside gomphosis of sliding tray, handle and feed inlet are installed at the top of slip post, and the feed inlet is located one side of handle, the outlet pipe is installed in the bottom of slip post run through, and the tail end of outlet pipe and the laminating of the surface of water-swellable rubber lasso, the surface mounting of outlet pipe has the electronic valve.
Preferably, the internally mounted of protection dustcoat has pipeline, and pipeline's length is greater than the protection dustcoat, pipeline's internally mounted has corrosion-resistant coating, pipeline's surface mounting has two sets of symmetrical arrangement's recess, and recess and water-swelling rubber lasso gomphosis are connected, no. two pressure sensor is installed around the surface of recess, and No. two pressure sensor and electronic valve electric connection.
Preferably, the inside of pipeline runs through and installs the gomphosis cover, the linking bridge is installed to the inner wall of gomphosis cover, laser lamp source is installed at the top of linking bridge, the inside of protecting the dustcoat runs through and installs transparent connecting pipe, the rubber sleeve has been cup jointed on the surface of connecting pipe, and rubber sleeve and protecting the dustcoat threaded connection, the rubber sleeve is installed to the surface of connecting pipe, the gas port that meets is located the top of protecting the dustcoat, the rubber sleeve is run through on the surface of connecting pipe and is installed No. two control valves, and No. two control valves are located one side of gas port.
Preferably, the internally mounted of purifying circle has cuts off the otter board, and cuts off the otter board and be located the centre of activated carbon otter board and adsorption sponge, cut off one side surface mounting who keeps away from the centre of adsorption sponge in the otter board and have compression spring and a pressure sensor, and a pressure sensor is located compression spring's centre, the back flow is installed in the inside penetration of activated carbon otter board, and the one end of back flow is located the centre of activated carbon otter board and partition the otter board, the other end of back flow extends into pipeline's inside, the surface mounting of back flow has a control valve, and a control valve and a pressure sensor electric connection, the internally mounted of back flow has the check valve.
Preferably, the protection dustcoat comprises air column strip, waterproof layer, buffer spring and enhancement layer, one side surface mounting that the waterproof layer is close to pipeline has buffer spring, one side surface mounting that buffer spring kept away from the waterproof layer has the air column strip, one side surface mounting of air column strip has the enhancement layer, the internally mounted of enhancement layer has the strengthening rib.
Preferably, the surface mounting of protection dustcoat has the alarm, the surface mounting of alarm has the warning light, and warning light and alarm all with a pressure sensor electric connection.
Preferably, the surface of the conveying pipeline is provided with a first sealing valve and a second sealing valve in a penetrating manner, and the first sealing valve and the second sealing valve are respectively positioned on one side of the two groups of grooves close to the port of the conveying pipeline.
Preferably, the working steps of the chemical safety protection cover are as follows:
s1, before the chemical safety protection cover is used, a laser lamp source is turned on, a protection outer cover is sleeved on the surface of a conveying pipeline immediately, after laser rays emitted by the laser lamp source are projected to the top of a connecting pipe, the movement of the protection outer cover is stopped, the connecting pipe is rotated, a rubber sleeve on the surface of the connecting pipe can be in threaded connection with the inner wall of the embedded sleeve, a second control valve is in a closed state, and then the conveying pipeline is internally provided with a ventilation pipeline penetrating and extending to the outside of the protection outer cover;
s2, after the connecting pipe is in threaded connection with the embedded sleeve, the water-swelling rubber sleeve ring just moves to the position of the groove, at the moment, the electronic valve on the surface of the water outlet pipe is started, so that the water body stored in the sliding column can be poured on the surface of the water-swelling rubber sleeve ring, the inside of the groove can be filled and sealed after the water-swelling rubber sleeve ring swells, a sealed cavity is formed between the protective outer cover and the surface of the conveying pipeline, and the protective outer cover can play a role in sealing and diffusion preventing protection when gas in the conveying pipeline escapes;
s3, when chemical gas is conveyed in the conveying pipeline, the conveying pipeline leaks due to cracks, at the initial stage of leakage, the amount of leaked gas in the conveying pipeline is small, at the moment, the gas sequentially passes through an activated carbon screen plate, a first adsorption sponge and a second adsorption sponge, so that the leaked gas can be adsorbed, neutralized and dissolved, the effect of gas purification is achieved, meanwhile, the surface impact effect is formed on a first pressure sensor by air impact, an alarm sounds at the moment, staff is reminded to take targeted measures, along with continuous leakage of the gas in the conveying pipeline, the surface cracks of the conveying pipeline are enlarged, the leakage amount of the gas in the conveying pipeline is increased, at the moment, when the impact effect received by the first pressure sensor is larger than a preset safety threshold value, the alarm and a prompt lamp are synchronously started, the effect of double alarm is achieved, the effect of state distinction is achieved when the alarm works singly, and meanwhile, a first control valve is opened, the gas in the protective outer cover can return to the inner part of the conveying pipeline in a one-way, a closed gas loop is formed, and explosion caused by overlarge volume of the protective outer cover is prevented;
s4, when a worker observes that the alarm and the prompt lamp are both lightened and reach the position of the conveying pipeline, the first sealing valve and the second sealing valve are simultaneously closed, an air supply pipe externally connected with the air storage tank is connected to the air receiving port, and the second control valve is opened, so that chemical gas rapidly leaked from the interior of the conveying pipeline is transferred to the interior of the air storage tank through the connecting pipe, and the gas is stored for secondary transmission;
s5, in the process of conveying chemical gas through the conveying pipeline, the electronic valve is started at regular time, so that the water outlet pipe is in a regular smooth state, and further, the water-swelling rubber ferrule can be subjected to regular soaking, so that the water-swelling rubber ferrule is always in a swelling state, and further, the sustainable sealing protection effect between the protection outer cover and the conveying pipeline is ensured;
s6, when a large amount of gas in the conveying pipeline leaks out, the impact effect produces an lifting effect on the water-swelling rubber ferrule, the extrusion effect of the water-swelling rubber ferrule on the second pressure sensor is weakened at the moment, the second pressure sensor sends a starting signal to the electronic valve at the moment, so that the water outlet pipe is used for discharging water, and the water-swelling rubber ferrule is soaked and swelled again, so that the sealing effect is enhanced.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the purification ring, the activated carbon screen plate, the first adsorption sponge and the second adsorption sponge are arranged, so that when chemical gas is conveyed in the conveying pipeline, the pipeline leaks due to cracks, the amount of leaked gas in the conveying pipeline is small in the initial stage of leakage, and the gas passes through the activated carbon screen plate, the first adsorption sponge and the second adsorption sponge in sequence, so that the leaked gas can be purified.
According to the invention, the sliding column, the water outlet pipe, the electronic valve, the water-swelling rubber ring and the second pressure sensor are arranged, water in the sliding column is discharged through the water outlet pipe, so that the inside of the groove can be filled and sealed after the water-swelling rubber ring swells, and the water outlet pipe continues to discharge water when the extrusion effect of the water-swelling rubber ring on the second pressure sensor is weakened, and then the water-swelling rubber ring is soaked and swelled again, so that the sealing effect is enhanced.
According to the invention, the embedded sleeve, the connecting bracket, the laser light source, the rubber sleeve, the gas receiving port, the connecting pipe and the second control valve are arranged, after the surfaces of the protective outer cover and the conveying pipeline are aligned, the rubber sleeve is in threaded connection with the embedded sleeve, when the alarm and the prompting lamp are lightened together, the first sealing valve and the second sealing valve are simultaneously closed, the external gas supply pipe is connected to the gas receiving port, the second control valve is opened, so that chemical gas rapidly leaked from the interior of the conveying pipeline is transferred to the interior of the gas storage tank through the connecting pipe, and gas storage for secondary transmission is realized.
According to the invention, the first pressure sensor and the return pipe are arranged, so that the surface crack of the conveying pipeline is enlarged along with the continuous leakage of the gas in the conveying pipeline, when the impact action of the first pressure sensor is greater than the preset safety threshold, the first control valve is opened, so that the gas in the protective outer cover can return to the interior of the conveying pipeline in one direction through the return pipe to form a closed gas loop, and further the expansion explosion of the interior of the protective outer cover caused by the overlarge gas volume is prevented.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of a transfer pipe and a protective housing according to the present invention;
FIG. 3 is a schematic cross-sectional view of a purge ring according to the present invention;
FIG. 4 is a schematic view of the mounting structure of the protective housing, purge ring, sliding column and water-swellable rubber collar of the present invention;
FIG. 5 is a schematic view of the mounting structure of the embedded sleeve, the connecting bracket, the laser lamp source, the rubber sleeve, the air receiving port, the connecting pipe and the second control valve;
FIG. 6 is a schematic view of the internal mounting structure of the protective housing of the present invention;
FIG. 7 is a schematic view of a mounting structure of a conveying pipe according to the present invention;
FIG. 8 is a schematic view of the mounting structure of the water-swellable rubber collar, groove, and pressure sensor number two of the present invention.
In the figure: 1. a delivery conduit; 2. a protective outer cover; 3. a groove; 4. a sliding column; 5. a purifying ring; 6. a water-swellable rubber collar; 7. a return pipe; 8. a feed inlet; 9. a water outlet pipe; 10. a sliding groove; 11. an activated carbon screen; 12. a compression spring; 13. a first adsorption sponge; 14. a second adsorption sponge; 15. partition screen board; 16. a first control valve; 17. a first pressure sensor; 18. a warning light; 19. an alarm; 20. a first closed valve; 21. a second closed valve; 22. a jogged sleeve; 23. a connecting bracket; 24. a laser light source; 25. a rubber sleeve; 26. an air receiving port; 27. a connecting pipe; 28. a second control valve; 29. a corrosion-resistant coating; 30. a second pressure sensor; 31. an air column strip; 32. a waterproof layer; 33. a buffer spring; 34. a reinforcing layer.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-8, an embodiment of the present invention is provided: the chemical safety protection cover with the gas purification treatment comprises a conveying pipeline 1, a protection outer cover 2, a sliding column 4 and a purification ring 5, wherein the purification ring 5 is arranged in the protection outer cover 2;
the inside of the purification ring 5 is provided with an activated carbon screen plate 11, a first adsorption sponge 13 and a second adsorption sponge 14, the first adsorption sponge 13 is positioned between the activated carbon screen plate 11 and the second adsorption sponge 14, the inside of the first adsorption sponge 13 is soaked with alkaline solution, and the inside of the second adsorption sponge 14 is soaked with organic solution;
further, when chemical gas is transported in the transport pipe 1, the transport pipe 1 leaks due to the occurrence of a pipe crack, and at the initial stage of leakage, the amount of gas leaked in the transport pipe 1 is small, and at this time, the gas passes through the activated carbon net plate 11, the first adsorption sponge 13 and the second adsorption sponge 14 in sequence, so that the leaked gas can be purified, and further, the VOCS gas in the transport gas is adsorbed, and the acid gas is neutralized, so that the organic gas is dissolved in the organic solution, thereby achieving the overall and effective purification effect.
The inside of protecting cover 2 runs through and is equipped with the sliding tray 10 that the equidistance was arranged, the tail end of sliding tray 10 is located the both sides of purifying ring 5, sliding column 4 is installed to the inside gomphosis of sliding tray 10, handle and feed inlet 8 are installed at the top of sliding column 4, and feed inlet 8 is located one side of handle, outlet pipe 9 is installed in the bottom of sliding column 4 run through, and the tail end of outlet pipe 9 is laminated with the surface of water-swellable rubber lasso 6, the surface mounting of outlet pipe 9 has the electronic valve, the internally mounted of protecting cover 2 has pipeline 1, and pipeline 1's length is greater than protecting cover 2, pipeline 1's internally mounted has corrosion-resistant coating 29, pipeline 1's surface mounting has two sets of symmetrical recess 3, and recess 3 and water-swellable rubber lasso 6 gomphosis are connected, no. two pressure sensor 30 are installed around the surface of recess 3, and No. two pressure sensor 30 and electronic valve electric connection, two sets of water-swellable rubber lasso 6 of symmetrical arrangement are installed to the inner wall gomphosis of protecting cover 2, and water-swellable rubber 6 is located the both sides of purifying ring 5.
Further, start the electronic valve on outlet pipe 9 surface, the inside water of sliding column 4 flows to the surface of meeting water inflation rubber lasso 6 for can fill sealed processing with the inside of recess 3 after meeting water inflation rubber lasso 6 inflation, protection dustcoat 2 can play sealed diffusion protection when the inside gas of pipeline 1 takes place to escape outward, the timing starts the electronic valve, make outlet pipe 9 be in the state that regularly is unobstructed, and then can take the effect of regularly soaking to meeting water inflation rubber lasso 6 always in the inflation state, and then guarantee the sealed protection effect of persistence between protection dustcoat 2 and the pipeline 1.
Further, the inside of pipeline 1 runs through and installs gomphosis cover 22, the linking bridge 23 is installed to the inner wall of gomphosis cover 22, laser lamp source 24 is installed at the top of linking bridge 23, transparent connecting pipe 27 is installed in the inside of protecting cover 2, rubber sleeve 25 has been cup jointed on the surface of connecting pipe 27, and rubber sleeve 25 and protecting cover 2 threaded connection, the gas receiving port 26 is installed to the surface of connecting pipe 27, gas receiving port 26 is located the top of protecting cover 2, rubber sleeve 25 is installed No. two control valves 28 are run through on the surface of connecting pipe 27, and No. two control valves 28 are located one side of gas receiving port 26, the surface mounting of protecting cover 2 has alarm 19, the surface mounting of alarm 19 has warning light 18, and warning light 18 and alarm 19 all with No. one pressure sensor 17 electric connection, pipeline 1's surface runs through and installs No. one and seals valve 20 and No. two and seals valve 21, and No. two seal valve 21 are located two sets of recess 3 and are close to one side of pipeline 1 port respectively.
Further, the laser lamp source 24 is turned on, the protective outer cover 2 is sleeved on the surface of the conveying pipeline 1 immediately, after laser rays emitted by the laser lamp source 24 are projected to the top of the connecting pipe 27, the protective outer cover 2 is stopped moving, the rubber sleeve 25 is in threaded connection with the inner wall of the embedded sleeve 22, when a worker observes that the alarm 19 and the indicator lamp 18 are on together, the first closing valve 20 and the second closing valve 21 are simultaneously closed, an air supply pipe connected with the air storage tank in an external mode is connected to the air receiving port 26, the second control valve 28 is opened, chemical gas rapidly leaked from the interior of the conveying pipeline 1 is transferred to the interior of the air storage tank through the connecting pipe 27, and storage of the gas for secondary conveying use is achieved.
The internally mounted of purifying circle 5 has cuts off otter board 15, and cuts off otter board 15 and is located the centre of activated carbon otter board 11 and adsorption sponge 13, one side surface mounting who cuts off otter board 15 and keeps away from the centre of adsorption sponge 13 has compression spring 12 and a pressure sensor 17, and a pressure sensor 17 is located compression spring 12's centre, the back flow 7 is installed in the inside penetration of activated carbon otter board 11, and the one end of back flow 7 is located the centre of activated carbon otter board 11 and cuts off otter board 15, the other end of back flow 7 extends into the inside of pipeline 1, the surface mounting of back flow 7 has a control valve 16, and a control valve 16 and a pressure sensor 17 electric connection, the internally mounted of back flow 7 has the check valve.
Further, with the continuous leakage of the gas inside the conveying pipeline 1, the surface crack of the conveying pipeline 1 is enlarged, so that the leakage flow of the gas inside the conveying pipeline 1 is increased, at the moment, the air flow flushes the first pressure sensor 17, when the impact action received by the first pressure sensor 17 is larger than the preset safety threshold, the alarm 19 and the prompting lamp 18 are synchronously started, the effect of double alarm is achieved, the state distinguishing effect is achieved when the alarm 19 works singly for warning, meanwhile, the first control valve 16 is opened, the gas inside the protective outer cover 2 can return to the inside of the conveying pipeline 1 in a unidirectional mode through the return pipe 7, a closed gas loop is formed, and further the expansion explosion caused by the overlarge gas volume inside the protective outer cover 2 is prevented.
In the process, the compression springs 12 can make the activated carbon screen 11 resist the clustering action, so that the normal use of the activated carbon screen 11 is ensured.
The protective housing 2 comprises a gas column bar 31, a waterproof layer 32, a buffer spring 33 and a reinforcing layer 34, wherein the buffer spring 33 is installed on one side surface of the waterproof layer 32 close to the conveying pipeline 1, the gas column bar 31 is installed on one side surface of the buffer spring 33 far away from the waterproof layer 32, the reinforcing layer 34 is installed on one side surface of the gas column bar 31, and reinforcing ribs are installed in the reinforcing layer 34.
Further, through the buffer structure that air column strip 31, buffer spring 33 are constituteed, can provide striking buffering protective effect for protecting the dustcoat 2, waterproof layer 32 can provide waterproof isolation effect, avoids protecting the dustcoat 2 and receives the rainwater erosion, plays good auxiliary stay effect through enhancement layer 34, and then plays armor protection effect.
The working steps of the chemical safety protection cover are as follows:
s1, before the chemical safety protection cover is used, a laser light source 24 is turned on, a protection outer cover 2 is sleeved on the surface of a conveying pipeline 1 immediately, after laser light emitted by the laser light source 24 is projected to the top of a connecting pipe 27, the movement of the protection outer cover 2 is stopped, the connecting pipe 27 is rotated, a rubber sleeve 25 on the surface of the connecting pipe 27 can be in threaded connection with the inner wall of a jogged sleeve 22, a second control valve 28 is in a closed state, and then the conveying pipeline 1 is internally provided with a ventilation pipeline penetrating and extending to the outside of the protection outer cover 2;
s2, after the connecting pipe 27 is in threaded connection with the embedded sleeve 22, the water-swelling rubber sleeve 6 just moves to the position of the groove 3, at the moment, an electronic valve on the surface of the water outlet pipe 9 is started, so that water stored in the sliding column 4 can be poured on the surface of the water-swelling rubber sleeve 6, the inside of the groove 3 can be filled and sealed after the water-swelling rubber sleeve 6 swells, further, a sealed cavity is formed on the surfaces of the protective outer cover 2 and the conveying pipeline 1, and the protective outer cover 2 can play a role in sealing and diffusion preventing protection when gas in the conveying pipeline 1 escapes;
s3, when chemical gas is conveyed in the conveying pipeline 1, pipeline leakage occurs in the conveying pipeline 1 due to cracks, the amount of gas leaked in the conveying pipeline 1 is small at the initial stage of leakage, at the moment, the gas sequentially passes through the activated carbon screen 11, the first adsorption sponge 13 and the second adsorption sponge 14, so that the leaked gas can be adsorbed, neutralized and dissolved, and the effect of gas purification is achieved, meanwhile, the air flow impact forms a surface impact effect on the first pressure sensor 17, the alarm 19 sounds at the moment, workers are reminded to take targeted measures, the surface cracks of the conveying pipeline 1 are enlarged along with the continuous leakage of the gas in the conveying pipeline 1, the gas leakage flow in the conveying pipeline 1 is increased, at the moment, the air flow flushes the first pressure sensor 17, when the impact effect received by the first pressure sensor 17 is larger than a preset safety threshold, the alarm 19 and the reminding lamp 18 are synchronously started, the effect of double alarm is achieved, the effect of state discrimination is achieved when the alarm 19 works singly, and meanwhile, the first control valve 16 is opened, the gas in the protective cover 2 can return to the interior of the conveying pipeline 1 in a one-way, the inner part of the protective cover can form a closed loop through the air return pipe, and the explosion is prevented from being caused by the large volume of the inner part of the protective cover 2;
s4, when a worker observes that the alarm 19 and the indicator lamp 18 are lightened and reach the position of the conveying pipeline 1 together, the first sealing valve 20 and the second sealing valve 21 are closed simultaneously, an air supply pipe externally connected with the air storage tank is connected to the air receiving port 26, and the second control valve 28 is opened, so that chemical gas rapidly leaked from the interior of the conveying pipeline 1 is transferred to the interior of the air storage tank through the connecting pipe 27, and the gas is stored for secondary transmission;
s5, in the process of conveying chemical gas through the conveying pipeline 1, the electronic valve is started at regular time, so that the water outlet pipe 9 is in a regular smooth state, and further, the water-swelling rubber sleeve 6 can be subjected to a regular soaking effect, so that the water-swelling rubber sleeve 6 is always in a swelling state, and further, the sustainable sealing protection effect between the protection outer cover 2 and the conveying pipeline 1 is ensured;
s6, when a large amount of gas in the conveying pipeline 1 leaks out, the impact effect produces an lifting effect on the water-swellable rubber ferrule 6, at the moment, the squeezing effect of the water-swellable rubber ferrule 6 on the second pressure sensor 30 is weakened, at the moment, the second pressure sensor 30 sends a starting signal to the electronic valve, so that the water outlet pipe 9 discharges water, and the water-swellable rubber ferrule 6 is soaked and swelled again, so that the sealing effect is enhanced.
Working principle: before the chemical safety protection cover is used, the laser lamp source 24 is opened, the protection outer cover 2 is sleeved on the surface of the conveying pipeline 1 immediately, after laser rays emitted by the laser lamp source 24 are projected to the top of the connecting pipe 27, the movement of the protection outer cover 2 is stopped, the rubber sleeve 25 is in threaded connection with the inner wall of the embedded sleeve 22, when a worker observes that the alarm 19 and the prompting lamp 18 are lightened together, the first sealing valve 20 and the second sealing valve 21 are simultaneously closed, an air supply pipe connected with the air storage tank in an external mode is connected to the air receiving port 26, the second control valve 28 is opened, so that chemical gas rapidly leaked from the interior of the conveying pipeline 1 is transferred to the interior of the air storage tank through the connecting pipe 27, and the gas is stored for secondary conveying use;
the electronic valve on the surface of the water outlet pipe 9 is started, the water in the sliding column 4 flows to the surface of the water-swelling rubber ring 6, so that the inside of the groove 3 can be filled and sealed after the water-swelling rubber ring 6 swells, the protective outer cover 2 can play a role in sealing and diffusion prevention protection when the gas in the conveying pipeline 1 escapes outwards, the electronic valve is started at regular time, the water outlet pipe 9 is in a regular smooth state, the water-swelling rubber ring 6 can be subjected to a regular soaking effect, the water-swelling rubber ring 6 is always in a swelling state, and the sustainable sealing and protection effect between the protective outer cover 2 and the conveying pipeline 1 is ensured;
when chemical gas is conveyed in the conveying pipeline 1, the conveying pipeline 1 leaks due to pipeline leakage caused by cracks, and in the initial stage of leakage, the amount of leaked gas in the conveying pipeline 1 is small, and at the moment, the gas passes through the activated carbon screen 11, the first adsorption sponge 13 and the second adsorption sponge 14 in sequence, so that the leaked gas can be purified;
the air current is strikeed and is formed the surperficial impact effect to pressure sensor 17, alarm 19 rings this moment, remind the staff to take the pertinence measure, when pipeline 1 inside gas leakage flow increases, when the impact effect that pressure sensor 17 received is greater than preset safety threshold, alarm 19 and warning light 18 start in step, play dual warning's effect, play the state with alarm 19 single work and distinguish the effect when warning, first control valve 16 opens simultaneously, make the inside gas of protection dustcoat 2 can return to pipeline 1's inside through back flow 7 one-way, form closed gas circuit, and then prevent the inside inflation explosion that leads to because of the gas volume is too big of protection dustcoat 2, when pipeline 1 inside gas is leaked in a large number, impact is to the effect of lifting water-swellable rubber lasso 6, at this moment water-swellable rubber lasso 6 is to the extrusion effect of No. two pressure sensor 30, outlet pipe 9 continues out water, and then carry out the water-swellable rubber lasso as to strengthen sealed effect.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. Chemical industry safety protection casing with gas purification treatment, including pipeline (1), protection dustcoat (2), slip post (4) and purification circle (5), its characterized in that: a purification ring (5) is arranged in the protective outer cover (2);
an activated carbon screen plate (11), a first adsorption sponge (13) and a second adsorption sponge (14) are arranged in the purification ring (5), the first adsorption sponge (13) is positioned between the activated carbon screen plate (11) and the second adsorption sponge (14), an alkaline solution is soaked in the first adsorption sponge (13), and an organic solution is soaked in the second adsorption sponge (14);
the inner wall gomphosis of protection dustcoat (2) is installed two sets of symmetrical arrangement's water-swellable rubber lasso (6), and water-swellable rubber lasso (6) are located the both sides of purifying circle (5), the inside of protection dustcoat (2) runs through and is equipped with sliding tray (10) that the equidistance was arranged, the tail end of sliding tray (10) is located the both sides of purifying circle (5), sliding column (4) are installed to the inside gomphosis of sliding tray (10), handle and feed inlet (8) are installed at the top of sliding column (4), and feed inlet (8) are located one side of handle, outlet pipe (9) are installed in the bottom penetration of sliding column (4), and the tail end and the surface laminating of water-swellable rubber lasso (6) of outlet pipe (9), the surface mounting of outlet pipe (9) has the electronic valve, the internally mounted of protection dustcoat (2) has pipeline (1), and the length of pipeline (1) is greater than protection dustcoat (2), the internally mounted of pipeline (1) has corrosion-resistant coating (29), pipeline (1) surface mounting (3) and two sets of water-swellable rubber (3) are connected with water-swellable rubber (3) respectively, and the surperficial-mounted groove (3) of water-swellable rubber (3) is connected with water-swellable rubber (3), and the second pressure sensor (30) is electrically connected with the electronic valve.
2. A chemical safety shield with gas purification treatment according to claim 1, wherein: the inside of pipeline (1) is run through and is installed gomphosis cover (22), linking bridge (23) are installed to the inner wall of gomphosis cover (22), laser lamp source (24) are installed at the top of linking bridge (23), transparent connecting pipe (27) are installed in the inside of protecting cover (2) run through, rubber sleeve (25) have been cup jointed on the surface of connecting pipe (27), and rubber sleeve (25) and protecting cover (2) threaded connection, gas-receiving port (26) are installed in the surface of connecting pipe (27) run through rubber sleeve (25), gas-receiving port (26) are located the top of protecting cover (2), no. two control valves (28) are installed in the surface of connecting pipe (27) run through rubber sleeve (25), and No. two control valves (28) are located one side of gas-receiving port (26).
3. A chemical safety shield with gas purification treatment according to claim 2, wherein: the inside mounting who purifies circle (5) has cuts off otter board (15), and cuts off otter board (15) and is located the centre of activated carbon otter board (11) and adsorption sponge (13), one side surface mounting who cuts off the centre that otter board (15) kept away from adsorption sponge (13) has compression spring (12) and a pressure sensor (17), and a pressure sensor (17) are located the centre of compression spring (12), back flow (7) are installed in the inside run-through of activated carbon otter board (11), and the one end of back flow (7) is located the centre of activated carbon otter board (11) and partition otter board (15), the other end of back flow (7) extends into the inside of pipeline (1), the surface mounting of back flow (7) has a control valve (16), and a control valve (16) and a pressure sensor (17) electric connection, the internally mounted of back flow (7) has the check valve.
4. A chemical safety shield with gas purification treatment according to claim 3, wherein: the protection dustcoat (2) comprises air column strip (31), waterproof layer (32), buffer spring (33) and enhancement layer (34), one side surface mounting that waterproof layer (32) are close to pipeline (1) has buffer spring (33), one side surface mounting that waterproof layer (32) were kept away from to buffer spring (33) has air column strip (31), one side surface mounting of air column strip (31) has enhancement layer (34), the internally mounted of enhancement layer (34) has the strengthening rib.
5. A chemical safety shield with gas purification treatment as recited in claim 4, wherein: the surface mounting of protecting cover (2) has alarm (19), the surface mounting of alarm (19) has warning light (18), and warning light (18) and alarm (19) all with first pressure sensor (17) electric connection.
6. A chemical safety shield with gas purification treatment according to claim 5, wherein: the surface of the conveying pipeline (1) is provided with a first sealing valve (20) and a second sealing valve (21) in a penetrating mode, and the first sealing valve (20) and the second sealing valve (21) are respectively located on one side, close to the port of the conveying pipeline (1), of the two groups of grooves (3).
7. The chemical safety shield with gas purification treatment according to claim 6, wherein the working steps of the chemical safety shield are as follows:
s1, before the chemical safety protection cover is used, a laser light source (24) is opened, a protection outer cover (2) is sleeved on the surface of a conveying pipeline (1) immediately, after laser rays emitted by the laser light source (24) are projected to the top of a connecting pipe (27), the movement of the protection outer cover (2) is stopped, the connecting pipe (27) is rotated, a rubber sleeve (25) on the surface of the connecting pipe (27) can be in threaded connection with the inner wall of a jogged sleeve (22), a second control valve (28) is in a closed state, and then a ventilation pipeline penetrating and extending to the outside of the protection outer cover (2) is arranged in the conveying pipeline (1);
s2, after the connecting pipe (27) is in threaded connection with the embedded sleeve (22), the water-swelling rubber sleeve ring (6) just moves to the position of the groove (3), at the moment, an electronic valve on the surface of the water outlet pipe (9) is started, so that water stored in the sliding column (4) can be poured on the surface of the water-swelling rubber sleeve ring (6), the inside of the groove (3) can be filled and sealed after the water-swelling rubber sleeve ring (6) swells, further, a sealed cavity is formed between the protective outer cover (2) and the surface of the conveying pipeline (1), and the protective outer cover (2) can play a role in sealing and diffusion prevention protection when gas in the conveying pipeline (1) escapes;
s3, when chemical gas is conveyed in the conveying pipeline (1), the conveying pipeline (1) leaks due to pipeline leakage caused by continuous leakage of the gas in the conveying pipeline (1) at the initial stage of leakage, the gas sequentially passes through the activated carbon screen (11), the first adsorption sponge (13) and the second adsorption sponge (14), so that the leaked gas can be adsorbed, neutralized and dissolved, the effect of gas purification is achieved, meanwhile, the air flow impact forms a surface impact effect on the first pressure sensor (17), the alarm (19) sounds, staff is reminded to take targeted measures, the surface crack of the conveying pipeline (1) is enlarged along with the continuous leakage of the gas in the conveying pipeline (1), the gas leakage flow in the conveying pipeline (1) is increased, when the impact effect of the first pressure sensor (17) is larger than a preset safety threshold value, the alarm (19) and the indicator lamp (18) are synchronously started, the effect of double alarm is achieved, the alarm (19) is single-working with the alarm (19) to form a surface impact effect, the inner part of the return pipeline (1) can be controlled to be opened, the inner part of the return pipeline (2) can be closed, and the inner part of the return pipeline (7) can be protected by opening, so as to prevent the expansion explosion caused by the overlarge gas volume inside the protective outer cover (2);
s4, when a worker observes that the alarm (19) and the prompt lamp (18) are lightened and reach the position of the conveying pipeline (1), the first sealing valve (20) and the second sealing valve (21) are simultaneously closed, an air supply pipe externally connected with the air storage tank is connected to the air receiving port (26) and the second control valve (28) is opened, so that chemical gas rapidly leaked from the interior of the conveying pipeline (1) is transferred to the interior of the air storage tank through the connecting pipe (27), and the gas is stored for secondary transmission;
s5, in the process of conveying chemical gas through the conveying pipeline (1), the electronic valve is started at regular time, so that the water outlet pipe (9) is in a regular smooth state, and further, the water-swelling rubber sleeve ring (6) can be subjected to a regular soaking effect, so that the water-swelling rubber sleeve ring (6) is in a swelling state all the time, and further, a sustainable sealing protection effect between the protection outer cover (2) and the conveying pipeline (1) is ensured;
s6, when a large amount of gas in the conveying pipeline (1) leaks, the impact effect is generated on the water-swelling rubber ring (6), the extrusion effect of the water-swelling rubber ring (6) on the second pressure sensor (30) is weakened, the second pressure sensor (30) sends a starting signal to the electronic valve, the water outlet pipe (9) is enabled to be discharged, and the water-swelling rubber ring (6) is soaked and swelled again, so that the sealing effect is enhanced.
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