CN1240507A - Piece of piping through which waste gas flows of system of pipes carrying waste gases, and this system of pipes - Google Patents
Piece of piping through which waste gas flows of system of pipes carrying waste gases, and this system of pipes Download PDFInfo
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- CN1240507A CN1240507A CN 97180633 CN97180633A CN1240507A CN 1240507 A CN1240507 A CN 1240507A CN 97180633 CN97180633 CN 97180633 CN 97180633 A CN97180633 A CN 97180633A CN 1240507 A CN1240507 A CN 1240507A
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- pipe
- tube segment
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- waste gas
- drop
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Abstract
A piece of piping (1) includes an outer pipe (3) and an inner pipe (2). The outer pipe (3) consists of a stable material impermeable to liquids. The inner pipe (2) that carries waste gas is made of a sintered material, preferably plastic, metal or ceramic, and is permeable to the liquid (9) as a function of a pressure difference between the space (8) between the pipes and the inner space (20), but is essentially impermeable to liquid when the pressure is equal. The space (8) between the inner pipe (2) and the outer pipe (3) is filled with the liquid (9). If a pressure is exerted on the liquid (9) in the cavity (8), the liquid (9) permeates through the three-dimensional system of pores of the inner pipe's wall, controlled by the pressure, and wets the inside of the inner pipe's wall evenly. If the pressure is increased still further, the liquid (9) begins to drip into the inner pipe (2). The system of pipes comprises at least one piece of piping through which waste gas flows. It prevents deposits and caking on the inside walls of the pipes by wetting these with liquid (9). A drop removal facility (23) with a drop collection space (24) prevents the liquid (9) flowing backwards by dripping down.
Description
The present invention relates to a kind of tube segment that flows through waste gas in a kind of waste gas discharge conduit system, described in the preorder as claimed in claim 1, for its cleaning purpose, the inwall of tube segment can be in addition wetting with a kind of liquid; Also relate to a kind of waste gas discharge conduit system that is furnished with a this tube segment at least.
Enter in the ambient air owing to distilling, evaporate or the event of vaporization, having when in surpassing the temperature range of room temperature, carrying out the raw material processing with the incompatible material of air.This situation is for example just arranged on following manufacturing mechanism, and the multiple raw material with mutual linking in the distinct device part of these manufacturing mechanisms manufacture a product.When temperature descended, those and the incompatible material of air at first condensed on the surface of environment division as aerosol and solid deposits.In the course of time, these sedimentss are assembled in heaps, might rise to the surface that covers environment division, and sclerosis, and can be cemented on the surface of environment division.
The manufacturing mechanism that wherein relates to partly is that those are directly used in the section that this manufacturing mechanism carries out processing, perhaps the part that directly is connected with these sections.For example can take ventilation equipment that this point is described now, this kind equipment excretes out vitiated air or waste gas from the cavity of manufacturing mechanism, meanwhile, sediments can be cemented on the tube wall of pipe-line system, and this phenomenon can cause the production fault, produce and interrupt and even many danger.
Here, have a talk as an example, all carry out by the operation that this production is addressed, and be repetition in typical mode with the situation in the payable shaving board production.Shaving board is made with bits sheet thing, for example timber bits, perhaps other lignified fiber's thing.The bits sheet thing that will glue together under high pressure and high temperature condition is processed in the process of shaving board, can discharge steam, may contain phenol, alkane in the steam Ji Jia Chuo.Enter the grease vapors that also has in the ambient air, they are to come out in the mechanical transmission region generating of manufacturing mechanism.This by above-mentioned not with the ambient air of the affine material severe contamination of air through the pipe-line system suction.At this moment, the ambient air that is sucked also can be lowered the temperature, thereby makes as previously mentioned not and to condense into aerosol with the affine material of air, then as solid deposits mainly on the tube wall of accumulation in pipe-line system.These sedimentss once caused taking place serious firing accident.
Therefore need some devices, accumulate in pipe-line system for example on the tube wall of the pipe-line system of ventilation equipment so that can prevent solid deposits whereby.
It is that everybody is familiar with that some devices are arranged in this respect, and they try hard to utilize a lot of ejecting systems that is enclosed in the pipe-line system to keep tube wall not have sediments.According to this ejecting system, utilize nozzle that water is sprayed in the pipeline in some positions of determining of pipe-line system.So a kind of water curtain of formation just flows through this water curtain by the waste gas of ventilation equipment dispatch in pipe.But the main inherent defect of this class ejecting system is that its assembling is very bothersome.In addition, for its operation need be with a large amount of water, and this water must be in cleaning equipment could use after the cleaning in addition expend quite big.
Task of the present invention is the tube segment that a kind of the sort of exhaust flow of being addressed in beginning that is used in the waste gas discharge conduit system of suggestion is crossed, and a kind of waste gas discharge conduit system that is equipped with a this tube segment at least, utilize this tube segment not have solid deposits at the tube wall that uses maintenance pipe-line system under the as far as possible little water yield situation.
Above-mentioned task is to solve according to the tube segment of the characteristics combination that spells out in the claim 1 of the present invention.Drainage off-gas piping system by the present invention's design is defined in claim 5.Favourable designs more of the present invention are defined in every dependent claims.
The present invention can realize steplessly adjustablely wettingly purifying purpose to reach it to the tube segment inwall that is in the waste gas discharge conduit system in the waste gas, thereby prevents to occur in pipe-line system deposition and bonding.
The tube segment that the present invention proposes has an outer tube and one and is placed in pipe in one of them.Outer tube is to make as chromium steel, galvanized iron etc. with a kind of stable material of liquid impermeable.The interior pipe that flows through waste gas is the material with a kind of permeation liquid controllably, and preferably a kind of microporous materials is made, and can preferentially adopt a kind of agglomerated material, and by plastics, metal or pottery material that form and that have different porosities.Between outer tube and interior pipe, define a pipe intermediate cavity, and perfusion fluid.Under pressure balanced condition between the inner chamber of interior pipe and this intermediate cavity, controllably the material of permeation liquid then shows liquid impermeable.When in liquid, having negative pressure or aspect waste gas, having negative pressure, because due to the pressure reduction, liquid then sees through the three-dimensional micropore system of the interior pipe of using as barrier film, thereby reaches such result, and it is in addition wetting that promptly liquid will be in the internal surface of the interior pipe in the waste gas equably.Under higher superpressure situation, liquid then begins to come through interior pipe.Can be according to selected inner orifice crack rate in order to absorb in the waste gas not with the affine needed amount of liquid of material of air, by control, increase and decrease arbitrarily being on the total inner surface in the waste gas of interior pipe to pressure.Superpressure in the liquid for example can produce by the pump in the fluid loop, the negative pressure of waste gas one side then can be for example air bells exhauster by the suction side that is placed in pipe-line system produce.Compare with the superpressure operation, the advantage of negative pressure operation is not need pump.
With waste gas contacted in the inwall of pipe can be continuously or in addition wetting off and on, the cleaning of inwall also can be controlled perdurabgility, and is allocated according to needs at that time.
With regard to some embodiments the present invention is described below with reference to accompanying drawings, here, all parts that correspond to each other by identical function all use same code name to label in each accompanying drawing.Accompanying drawing is represented:
The profile diagram of the tube segment that Fig. 1 a the present invention proposes;
Tube segment is along the cross-section profile of cutting line A-A shown in Fig. 1 b Fig. 1 a;
Fig. 2 is according to a perspective view of tube segment of the present invention;
Fig. 3 a the present invention proposes is fitted in schematic piping diagram in the ventilation equipment, an additional cyclone separator and dislodger of having connected on this pipe-line system;
Fig. 3 b the present invention proposes is fitted in schematic piping diagram in the ventilation equipment, an additional liquid drop separator and dislodger of having connected on this pipe-line system;
Fig. 4 is according to the profile diagram of a kind of entrainment trap on a kind of pipe-line system of the present invention.
The tube segment 1 that the present invention proposes in illustrated embodiment comprises 2 and outer tubes 3 of settling with one heart with it of pipe in.Interior pipe 2 utilizes the end plate 4 of two ring-types to be fixed on the outer tube 3.Respectively settle an end plate 4 at two end face with one heart with outer tube 3, the external diameter of end plate is slightly larger than the external diameter of outer tube 3.Also come out at the lateral process of outer tube 3 in the edge of each end plate 4.Like this, just form a flange of encircling at the two ends of outer tube 3.The effect of this flange or flange is that tube segment 1 is joined to one another, and perhaps tube segment is coupled together with other parts of pipe-line system such as delivery pipe or an escape pipe and an entrainment trap etc.For this purpose, above-mentioned flange is furnished with the through hole 5 by the angular distance setting of rule.For instance, two tube segment 1, just can be screwed in the flange of a tube segment 1 on the flange of another tube segment 1 with screw fixedly the time by ground each other mutually.Used for this reason screw 6 can insert in the through hole 5 very simply.The external diameter of pipe 2 in the internal diameter of ring-type end plate 4 is equivalent to.In pipe 2 grow the double thickness of an end plate 4 than outer tube 3, so its two ends all can be stretched into respectively in the center hole 7 of end plate 4.Two end faces of interior pipe 2 flush with the outside of end plate 4 respectively.
Be straight tube segment 1 shown in Fig. 1 a, 1b, 2,3a and the 3b.But the tube segment 1 that the present invention proposes also can have the bending form, perhaps as the tube segment among Fig. 4 28, has a kind of arc-shaped bend form.
Allow a kind of liquid 9 enter between the interior pipe 2 of tube segment 1 and a pipe between the outer tube 3 in the gap 8, adapted the inlet duct 10 of a tubulose, this inlet duct is according to the outer side surface that radially is positioned at outer tube 3, and with in the gap 8 between its inner access tube.Inlet duct 10 preferably is placed in one of two petiolareas of outer tube 3.In order to make gap 8 realization vented exhausts between pipe, settled an outer pipe 11 at another petiolarea of outer tube 3.This outer pipe 11 is same according to the outer side surfaces that radially are positioned at outer tube 3, and stretches between pipe in the gap 8 with its inner.According to shown in embodiment, by inlet duct 10 is crossed in liquid 9 usefulness pumpings, to be in between apply a pressure on the liquid 9 (also can be the liquid bed) in the gap 8.Required for this reason pump is all not shown in each accompanying drawing.Certainly, above-mentioned pumping process middle outlet pipe 11 must keep closing.The pressure of liquid bed is measured with pressure meter 12.Pressure meter 12 is to be fixed on the outer tube 3 through the connecting tube 13 of a tubulose.This connecting tube 13 is according to radially being on the outer side surface of outer tube 3.Between its inner access tube in the gap 8.
The possible pressure of regulator solution bed automatically.Preferably use a kind of electric pressure gauge in the case.The manometric output signal of electricity is fed to a regulator, and carries out evaluation by regulator.Regulator compares the same predetermined rating value of measured pressure, and when the error of offrating occurring, the pressure of the liquid 9 that is delivered to gap 8 between pipe is done up or down proofreaied and correct.The adjustment of pressure can directly be passed through pump power or utilize pressure controlled valve to realize indirectly.
Also may regulate the amount of liquid of pipe 2 in passing, its method is to make waste gas one side be in negative pressure by pressure control.
In the pipe-line system working procedure, carry liquid 9 with mode continuous control and that flow is little gap 8 between pipe, this liquid permeates and mistake from the three-dimensional pore space system of the interior pipe 2 of membrane action, and comes out at the wall of waste gas one side from interior pipe 2 with the drop form.By the flowing velocity of waste gas 19 drop that distributes, and be converted into a kind of moisture film of internal surface of uniform, wetting the whole interior pipe 2 that contacts with waste gas, thereby prevent aerosol deposition reliably, aerosol particle all is absorbed in the droplet of liquid 9 at that time.
Also have a possibility in this respect, utilize additive to come obtaining liq 9 exactly, for example utilize and a kind ofly play the crosslinking agent of emulsifier effect or utilize biologically degradable material.The effect of crosslinking agent is to make aerosol to be able to emulsification in liquid 9, thereby is absorbed by this liquid better.In addition, liquid can also be remained on a kind of temperature that helps emulsification, perhaps make the liquid cooling in order to accelerate desorb.
The front by the agency of some project organizations, according to these structures, the pipeline section 1 in the pipe-line system approximately horizontally extends.But, as from as can be seen shown in Figure 4, the tube segment (such tube segment that upwards stretches 22 is just drawn with longitudinal plane in Fig. 4 partly and schematically) that pipe-line system also can adapted upwards stretches.Even by a kind of like this project organization, waste gas 19 also is to flow in the inner chamber 20 of the interior pipe 2 of the tube segment 22 that upwards stretches according to predetermined flow velocity, come out on the wall of interior pipe 2 with the drop form by the liquid 9 that interior pipe 2 oozes out in waste gas one side, these drops are distributed by the flow velocity of waste gas 19, and be transformed into one uniform wetting in the moisture film of wall of whole waste gas one side of pipe 2.
If the flow velocity of waste gas 19 reduces, just then the distribution of drop is delayed.If at this moment be reduced to one below the critical flow velocity, this moment each drop inertia greater than the power of exhaust-gas flow, so, just the drop of waste gas one side drippage downwards on the wall of the interior pipe 2 of the tube segment 22 that upwards stretches.
If a kind of tube segment of level of approximation 21, the liquid that so forms gathering can be gone up at an arbitrary position and be separated (this tube segment 21 just partly and is schematically drawn with side view in Fig. 4).When adopting a kind of tube segment 22 that upwards stretches, in case be lower than the critical flow velocity of waste gas, drop just can be instantaneously to dirty, even and since to the waste gas flow velocity carry out monitoring also must be at inlet duct 10 places immediately stop liquid supply with.Therefore, the pumping stages of manufacturing mechanism might be wetted in unwelcome mode under a stable condition.In order to prevent this point, pipe-line system has comprised an entrainment trap 23, and this segregating unit is seen the place ahead that is connected the tube segment 22 that upwards stretches along the flow direction of waste gas 19.
Above-mentioned entrainment trap 23 has a drop collecting chamber 24, and this collecting chamber is furnished with: an outlet connection 25 is used for the tube segment 22 of upwards settling; An inlet attack 26 is used to be connected the tube segment 21 in entrainment trap 23 the place aheads; And an escape pipe 27, be used for liquid 9.Outlet connection 25 is placed in the top of drop collecting chamber 24.Inlet attack 26 is placed in the middle part of drop collecting chamber 24.Escape pipe 27 is placed in the bottom of drop collecting chamber 24.
In the inside of drop collecting chamber 24, settled the tube segment 28 of an arc-shaped bend, this tube segment with waste gas 19 basically from inlet attack 26 be directed to outlet connection 25 near.The interior pipe 29 of substantially horizontal tube segment 21 is furnished with the end pipe 30 of a taper, this end pipe in the scope of inlet attack 26, extend into one heart in the drop collecting chamber 24 and the interior pipe 31 of the tube segment 28 of arc-shaped bend in.The interior pipe 31 of the tube segment 28 of arc-shaped bend itself is furnished with the end pipe 32 of a taper, and this end pipe points to the interior pipe 2 of the tube segment 22 of settling with one heart up in the scope of outlet connection 25.
The end pipe 30 of taper and 32 is used as nozzle on the one hand, does not lead so as to the flow point with waste gas 19 and adds the tube segment 28 and 22 that connects.On the other hand, on the end pipe 30 and 32 of above-mentioned taper, show a kind of discrete wall portion, reversing position outside a quite sharp seamed edge place has backward, this seamed edge stops drop to continue to flow according to the flow direction of waste gas 19 along wall portion.Till the drop that is flowing on the tube wall of the interior pipe 29 of substantially horizontal tube segment 21 can only be taken to end pipe 30 by exhaust flow 19, drop fell at this place, and was drained into the bottom of drop collecting chamber 24 through escape pipe 33.Similarly, till the drop that is flowing on the wall of the interior pipe 31 of the tube segment 28 of arc-shaped bend can only be taken to end pipe 32 by exhaust flow 19, drop fell at this place, and enters the bottom of drop collecting chamber 24 equally.At last, end pipe 32 also stops the drop that refluxes on the wall of interior pipe 2 of the tube segment 22 of settling up to enter in the interior pipe 31 of tube segment 28 of arc-shaped bend.These drops fall into the bottom of drop collecting chamber 24 too.The liquid that is collected in this place can be got rid of through escape pipe 27 at last.
Described drop removing device 23 can guarantee the purpose that reaches such: no matter be the drop from the tube segment 22 of settling up, still from the tube segment 28 of arc-shaped bend with from the drop of substantially horizontal tube segment 21, all can all be excluded, and be collected in as in seal tank and the eliminating jar drop collecting chamber 24 that designs.The drop collecting chamber structurally has following characteristics: even waste gas 19 continuously is sucked away under condition of negative pressure, also can drain the liquid that may reflux when being lower than predetermined critical speed.
Described waste gas discharge conduit system, its tube wall can be realized adjustable wetting, and is therefore different with known hydro-peening system, can carry out the cleaning of few liquid to the inner-walls of duct of ventilation equipment according to continuous or intermittently used mode.This system can prevent to occur the sediments of covering surfaces on inner tube wall, thereby reduces the danger that manufacturing mechanism is stopped work and caught fire.
Title code name list
1 tube segment
The inner tube of 2 tube segment
The outer tube of 3 tube segment
The end plate of 4 tube segment
Hole on 5 end plates
6 are used for the screw of continuous two tube segment
Center hole on 7 end plates
Gap between 8 pipes
9 liquid
The inlet duct of 10 tube segment
The outer pipe of 11 tube segment
The pressure meter of 12 tube segment
13 take over
The end of the inner tube of the inner tube 30 horizontal tube sections of the tube segment 29 horizontal tube sections of tube segment 23 drop removers 24 drop collecting chambers 25 outlet connections 26 inlet attacks 27 drainage connections 28 arc-shaped bends that the tube segment 22 of suction inlet 16 liquid drop separators, 17 dislodger 18 filters, 19 waste gas that 14 cyclone separators, 15 waste gas are used or inner chamber 21 levels of dirty air 20 tube segment is extended is up managed the end of inner tube of tube segment of inner tube 32 bendings of the tube segment of 31 bendings and is managed 33 excretory ducts
Claims (9)
1. flow through the tube segment (1) of waste gas in the waste gas discharge conduit system, for its cleaning purpose, the inwall of tube segment (1) can be wetting in addition with a kind of liquid, it is characterized in that: tube segment (1) comprises an outer tube made from the material of liquid impermeable (3) and one and is arranged on the usefulness interior pipe (2) made of the material of permeation liquid controllably in the outer tube (3), in this, be set in that gap (8) is marked with liquid (9) between the pipe between outer tube (3) and the interior pipe (2).
2. the tube segment described in claim 1, it is characterized in that: interior pipe (2) is manufactured with a kind of mushy material, can permeation liquid (9) when between gap between pipe (8) and the inner chamber (20) pressure difference being arranged, and pipe (2) is impermeable to liquid (9) under the isostasy condition.
3. the tube segment described in claim 2, it is characterized in that: mushy material is a kind of material of sintering.
4. the tube segment described in claim 3, it is characterized in that: mushy material is the metal of a kind of plastics of sintering, a kind of sintering or a kind of pottery of sintering.
5. waste gas discharge conduit system is furnished with a tube segment that flows through waste gas described in each of claim 1 to 3 at least.
6. the pipe-line system described in claim 5, it is characterized in that: pipe-line system is furnished with a tube segment (22) on the flow direction of waste gas (19), this tube segment is settled up, has connected a drop removing device (23) in its front.
7. the pipe-line system described in claim 6, it is characterized in that: drop removing device (23) has a drop collecting chamber (24), and this drop collecting chamber is furnished with: an outlet connection (25), the tube segment that is used for settling up (22);
An inlet attack (26) is used for a tube segment (21) that is connected drop removing device (23) front; And a drainage adapter (27) that is used for liquid (9), here, outlet connection (25) is placed in the top of drop collecting chamber (24), and inlet attack (26) is placed in the middle part of this collecting chamber, and escape pipe (27) is placed in its underpart.
8. the pipe-line system described in claim 7 is furnished with a substantially horizontal tube segment (21) that is connected drop removing device (23) front, it is characterized in that: in drop collecting chamber (24), be provided with the tube segment (28) of an arc-shaped bend, this tube segment basically with waste gas (19) from inlet attack (26) be directed to outlet connection (25) near.
9. the pipe-line system described in claim 8, it is characterized in that: the interior pipe (29) of substantially horizontal tube segment (21) is furnished with the end pipe (30) of a taper, this end pipe in the scope of inlet attack (26), extend into one heart in the drop collecting chamber (24) and the interior pipe (31) of the tube segment (28) of arc-shaped bend in; The interior pipe (31) of the tube segment of arc-shaped bend (28) is furnished with a tapered end pipe (32), and this end pipe points to the interior pipe (2) of the tube segment (22) of settling with one heart up in the scope of outlet connection (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97180633 CN1240507A (en) | 1996-10-24 | 1997-10-02 | Piece of piping through which waste gas flows of system of pipes carrying waste gases, and this system of pipes |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH2610/1996 | 1996-10-24 | ||
| CH1263/1997 | 1997-05-28 | ||
| CN 97180633 CN1240507A (en) | 1996-10-24 | 1997-10-02 | Piece of piping through which waste gas flows of system of pipes carrying waste gases, and this system of pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1240507A true CN1240507A (en) | 2000-01-05 |
Family
ID=5177775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97180633 Pending CN1240507A (en) | 1996-10-24 | 1997-10-02 | Piece of piping through which waste gas flows of system of pipes carrying waste gases, and this system of pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1240507A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143680A (en) * | 2017-04-10 | 2017-09-08 | 新奥泛能网络科技股份有限公司 | Equilibrated valve and air-conditioning system |
-
1997
- 1997-10-02 CN CN 97180633 patent/CN1240507A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143680A (en) * | 2017-04-10 | 2017-09-08 | 新奥泛能网络科技股份有限公司 | Equilibrated valve and air-conditioning system |
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