CN108223850A - A kind of water seal back purge system and water seal arrangement - Google Patents
A kind of water seal back purge system and water seal arrangement Download PDFInfo
- Publication number
- CN108223850A CN108223850A CN201810216818.5A CN201810216818A CN108223850A CN 108223850 A CN108223850 A CN 108223850A CN 201810216818 A CN201810216818 A CN 201810216818A CN 108223850 A CN108223850 A CN 108223850A
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- Prior art keywords
- water
- nozzle
- valve
- water seal
- pipe
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
- F16K13/08—Arrangements for cutting-off not used
- F16K13/10—Arrangements for cutting-off not used by means of liquid or granular medium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
- B08B2209/032—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces by the mechanical action of a moving fluid
Abstract
A kind of water seal back purge system, which is characterized in that including：Flashback tank, flashback tank has the first interface for draining, it threads a pipe more, more siphunculus mouths have the first nozzle, the second nozzle and third nozzle, first interface connects the first nozzle, the second valve is provided at second nozzle and for connecting water source, third valve is provided at third nozzle and for communicated drainage pipe；And the sensor for obtaining inside water pressure information of threading a pipe more.By high pressure water backwashing water joint sealing and drainpipe, achieve the purpose that mud dirt etc. is rinsed clean dredging flashback tank and drainpipe, while ensure to rinse only a small amount of high pressure water in success process and enter gas piping.
Description
Technical field
The present invention relates to water seal for coal gas cleaning choked technique field, in particular to a kind of water seal back purge system with
And water seal arrangement.
Background technology
Horizontal gas piping is equipped with water seal, to slough the water that generation is cleaned in gas piping, the top one of water seal arrangement
Side connects gas piping by water seal water inlet pipe, and the top opposite side of water seal arrangement is equipped with water seal drainage pipe, utilizes water gravity pressure
Poor principle, coal gas of the water seal arrangement in water segregation gas piping prevent coal gas during dehydration from leaking to air from seal pipe
In.A side of water seal arrangement is additionally provided with one and enters hole.
There are following drawbacks during using above device operation：Gas recovery in pneumatic steelmaking production, is used after coal-gas recovering
Water cleans gas piping, and duct wall has many flue dust, and the water after cleaning enters water seal arrangement and is dehydrated, and water seal arrangement is always
Certain water is maintained to seal gas piping, the sewage that water seal arrangement cleans during the dehydration process can be in its water sealed tank pot bottom
Sludge is slowly deposited into, after a period of time water seal, finally makes the pipeline of sludge blockage water seal water inlet pipe, loses water seal arrangement
Dehydrating function further results in a large amount of ponding in gas piping, makes to contain large quantity of moisture in the coal-gas recovering of carbon steel converter generation,
The quality of coal-gas recovering is greatly reduced, in addition a large amount of ponding can influence the operation of carbon steel coal gas of converter air-introduced machine in gas piping,
Lead to wind turbine surge, and then influence converter system operation.
During the use of coal gas of steel-smelting revolving furnace water seal at present, be in the presence of water seal bottom deposit sludge when, generally can only
In converter blowing out or maintenance, the hole that enters of water seal arrangement is opened, carries out manual cleaning settled sludge, to prevent water from sealing water inlet pipe one
End blocks, and ensures the normal operation of gas recovery system.The structure of existing apparatus is that can not clear up in normal production is smelted
Sludge.
Invention content
The purpose of the present invention is to provide a kind of water seal back purge system, by connecting high pressure water backwashing drainpipe and water
Joint sealing solves the problems, such as water seal with drainpipe by sludge blockage；
It is still another object of the present invention to provide a kind of water seal drainage device, the row blocked by using high pressure water backwashing
Water pipe and flashback tank solve the problems, such as water seal and drainpipe by sludge blockage, while water seal security seal prevents gas leak.
The invention is realized in this way：
A kind of water seal back purge system, including：Flashback tank, flashback tank have the first interface for draining,
It threads a pipe, more siphunculus mouths have the first nozzle, the second nozzle and third nozzle, the first pipe of first interface connection more
Mouthful, the second valve is provided at the second nozzle and for connecting water source, third valve is provided at third nozzle and for connecting
Drainpipe；And
For obtaining the sensor of inside water pressure information of threading a pipe more.
Preferably, sensor is water pressure gauge, and sensor is set to the pipeline intersection more to thread a pipe and leads to for obtaining more
The hydraulic pressure information of the pipeline intersection of pipeline.
Preferably, jet water spout is further included, jet water spout is connected with the second valve, the internal diameter of the first nozzle and the internal diameter of jet water spout
The ratio between be 3-10:1.
Preferably, the first valve and third valve are gate valve.
Preferably, the first valve is provided between the first nozzle and first interface.
Preferably, the junction of the first nozzle and third nozzle is both provided with sealing ring.
Preferably, the sealing ring for sealing is provided between jet water spout and the second valve.
A kind of water seal arrangement, the water seal back purge system including gas piping and any of the above-described, flashback tank and coal gas
Pipeline connects and is used to form water seal to gas piping.
Preferably, the connectivity points of flashback tank and gas piping are higher than first interface.
Preferably, flashback tank water inlet pipe is provided with the 5th valve for connecting gas piping.
The advantageous effect of said program：Water seal back purge system provided by the invention connects high-pressure water by jet water spout,
High pressure water flow backwashing water joint sealing and drainpipe reach the mesh that mud dirt etc. is rinsed clean dredging flashback tank and drainpipe
, while ensure to rinse only a small amount of high pressure water in success process and enter gas piping.Whole process is easy to operate, saves manpower
The quality of dredging drainpipe is protected, does not influence water seal for coal gas safety.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the axonometric drawing of water seal back purge system that the embodiment of the present invention 1 provides；
Fig. 2 is the structure diagram of the jet water spout that the embodiment of the present invention 1 provides and the second nozzle；
Fig. 3 is the sectional views threaded a pipe in the water seal back purge system of inventive embodiments 1 more；
Fig. 4 is the section view of the first gate valve in the water seal back purge system of inventive embodiments 1.
Reference sign：
Icon：100- drainpipes；101- third valves；The 4th valves of 102-；The second valves of 103-；The second valves of 103a-
Handle；The second nozzles of 104-；105- pressure gauges；The first valves of 106-；107- flashback tanks；108- gas pipings；The 5th valves of 109-
Door；110- threads a pipe more；111- water seal water inlet pipes；；The first nozzles of 112-；113- connecting portions；114- third nozzles；115- bolts
Hole；122- jet water spouts；201- gate valve handles；202- gate valve rods；203- spools 203；204- gate valve bolts hole；205- gate valve pipes
Road；206- gate valve connectors.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be configured to arrange and design with a variety of different.Therefore, below to provide in the accompanying drawings the present invention reality
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " are based on orientation shown in the drawings or position relationship or are somebody's turn to do
Invention product using when the orientation usually put or position relationship, be for only for ease of the description present invention and simplify description, without
It is instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
It solves to indicate or implying relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or one
Connect to body；Can be mechanical connection or electrical connection；It can be directly connected, it can also be indirect by intermediary
It is connected, can is the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
The principle of water seal for coal gas is prevented in pipe come air pressure change in will health drainpipe using the hydrostatic pressure of certain altitude
The measure of gas leakage.Specific effect is divided into：
1. for the condensed water accumulated in gas piping discharge line；
2. it is cut off for gas piping；
3. for gas check.
The condensed water that water seal effect in the present invention is taken into account in discharge line simultaneously also has the cut-out of gas piping.
The coke-stove gas of coke-oven plant's output, the blast furnace gas of steel plant's output, coal gas of converter and Mei Zhi factories device generate
Not wherein containing more water, the ponding in pipeline can increase support of pipelines loading and reduce the circulation area in pipeline,
Influence coal gas conveying, it is therefore desirable to the ponding in timely purging line, for pipeline is enable to discharge ponding at any time and does not reveal coal gas
It just needs to use gas pipeline drainer.Product in gas piping flows into water trap by the vertical drainage pipeline of duct bottom,
Coal gas is also simultaneously into water trap, and due to static pressure of the gas pressure less than water in water trap, coal gas will be by the water column in water trap
It blocks, it is impossible to flow further along, here it is " water seals ".Ponding in gas piping will be by flashback tank draining after entering water trap
Pipeline or overflow pipe discharge.Flashback tank in the water trap described here namely present invention.
Embodiment 1
It please refers to Fig.1 to Fig.4, present embodiments provides a kind of water seal back purge system, including：Flashback tank 107, flashback tank
107 have the first interface for draining, thread a pipe 110 more, more siphunculus mouths have the first nozzle 112, the second nozzle 104 and
Third nozzle 114, first interface connect the first nozzle 112, the second valve 103 are provided at the second nozzle 104 and for connecting
Water source is provided with third valve 101 at third nozzle 114 and for communicated drainage pipe 100；And for obtaining thread a pipe more
The sensor of 110 inside water pressure information.
The babinet of flashback tank 107 is diameter 1m, the cylinder of a height of 2m, the pipe thickness of flashback tank 107 in 2cm-3cm,
This is the flashback tank size of the present embodiment, and the size of flashback tank needs to set size according to practical water seal coal gas in the present invention.
Water seal height h is related with intraductal atmospheric pressure variation, water evaporation rate, water loss, the content of impurities in water and proportion, it is impossible to too big
It cannot be too small.If water seal height is too big, solid impurity is easily deposited on trap bottom in sewage, blocks pipeline；Water seal height
Too small, gas is got in easily against the hydrostatic pressure of water seal in pipe, pollutes environment.Therefore the flashback tank in each embodiment
Water seal height is depending on production needs.Due to being a cistern during 107 use of flashback tank, external environment is more moist
It is sultry.And coal soil dust is more, and therefore, material considers cost and use environment, and 107 material of flashback tank is using resistance to
The steel of corrosion, while varnish with lacquer, and inspect periodically in 107 outer surface of flashback tank, prevent corrosion from flashback tank 107 being caused to leak
Water.Flashback tank 107 considers that thickness is thicker, must close and firm when being welded, therefore welded using cylinder and circular closure.Circle
The both ends of cylinder all seal closing, and flashback tank 107 is kept flat perpendicular to the ground for both ends circular flat, in order to prevent flashback tank 107
It laterally rolls, two fixed frames that setting is worked in coordination with 107 diameter of flashback tank in the arc both sides of flashback tank 107 are by flashback tank
107 are fixed on ground.
Edge of 107 circular closure of flashback tank close to ground has the first interface of 20 centimetres of a diameter, for draining,
First interface is connected with one section short of the first drainpipe 100, and 100 length of the first drainpipe is 10 centimetres, and internal diameter is 10 centimetres, outside
12 centimetres of diameter.First one end of drainpipe 100 far from flashback tank 107 is provided with a bolt circle, and bolt circle outer diameter is in 16 centimetre
10 centimetres of diameter, thickness are 1 centimetre.Outer diameter to the part of internal diameter is solid construction, is provided in bolt circle and sees six gate valve spiral shells
Keyhole 204,1 centimetre of 204 diameter of gate valve bolt hole.Gate valve bolt hole 204 passes through entire bolt circle.In the present embodiment, first row
Water pipe 100 can be connected with flashback tank 107 by welding, can also be used and is processed into the integrated molding of flashback tank 107.Water simultaneously
Envelope meets quick water receiving to need a large amount of storage water during routine use, is offered always in the high centre of flashback tank 107
The water inlet of diameter substantially 107 diameter half of flashback tank.Sealing ring sealing while additional one and water inlet during usual not water receiving
The consistent lid covers of size shape.
In the present embodiment, 110 are threaded a pipe as three-way pipe or four-way pipeline, as long as more than three pipeline more.
The effect more threaded a pipe is exactly that can also play to access the water inlet of other water sources while completing draining.It is 110 are threaded a pipe as cylinder more,
10 centimetres of internal diameter, 12 centimetres of outer diameter thread a pipe 110 using spheroidal graphite due to needing using backwash cleaning drainpipe 100 more
Cast iron materials are made, and compared with other materials, ductile iron pipe has that intensity is big, good toughness tube wall is thin, metal consumption is few, can hold
The advantages that by higher pressure.110 three nozzles of threading a pipe are respectively the first nozzle 112, the second nozzle 104, third pipe more
Mouth 114, wherein the first nozzle 112 is identical with 114 internal diameter of third nozzle, outer diameter is consistent, and is both provided with bolt hole there are six bands
115 connecting portion 113.When the reason of setting in this way is for draining, the first nozzle 112 to third nozzle 114 is draining
A part for pipe, thus design when most much thread a pipe 110 internal diameter and flashback tank 107 draining bore it is in the same size, together
When connecting portion 113 set it is unanimously the same also for bolt used when facilitating connection, even if thread a pipe 110 direction
Adjustment still serves the same role.It is connecting portion 113 to be arranged at the first nozzle 112, and connecting portion 113 is internal diameter and first
The consistent short cylinder of 112 internal diameter of nozzle, 113 inner hollow of connecting portion.Outer diameter to inner-diameter portion be solid construction, outer diameter 16
Centimetre.The height of connecting portion 113 i.e. the depth of bolt hole 115 are 1 centimetre, six 115 circle column of bolt hole distributions
On connecting portion 113, on solid section, each 115 diameter of bolt hole and depth are 1 centimetre.113 and first nozzle of connecting portion
112 obtain third nozzle 114 about the 110 central plane mirror images for being parallel to pipe ends circular open of more threading a pipe connects with third
Socket part 113.
Second nozzle 104 is cylinder, and the internal diameter of the second nozzle 104 only has 4 centimetres of 3 cm OD.In second nozzle 104
Diameter should be noted that should be maintained at 1 with the ratio between the internal diameter of the first nozzle 112 and third nozzle 114：3-10.The reason is that draining
Pipe 100 is not blocked and must be cleaned completely, therefore is to have small part backwash flow that can enter flashback tank 107 during backsurging operation
, therefore the water flow of flushing used cannot be too big, if 104 internal diameter of the second nozzle is too big, the hydraulic pressure pressure that is accessed
Power will reduce the minimum pressure for being but not achieved and rinsing and blocking, if too small the accessed source pressure of pipeline is be easy to cause greatly very much pair
The impact wear of thread a pipe 110 and 100 inner walls of drainpipe more.The length of second nozzle 104 is 5 centimetres, and the second nozzle 104
Length direction vertically Yu 112 center of the first nozzle, three nozzle center line.Second nozzle 104 is with more siphunculus mouths using one
Molding connection.Second nozzle 104 is communicated with jet water spout 122 by the second valve 103, the second valve 103 equally can be gate valve,
Gate valve or butterfly valve, shut-off valve, in order to which cost performance and better seal consider, the second valve selected in the present embodiment
103 be gate valve.Gate valve and the second nozzle 104 is are tightly connected, and sealing is higher ranked, if the second valve can be used most preferably
103 and jet water spout 122 and much more entire 110 integrated moldings of threading a pipe.122 length of jet water spout i.e. cylinder jet water spout 122
Height for 10 centimetres, jet water spout 122 is provided with opening far from 110 one end of more threading a pipe, and opening can be that jet water spout 122 is justified
Cylinder circular open, can also be by being provided with 122 connecting portion 113 of jet water spout, and outer diameter is 7 centimetres, internal diameter and jet water spout 122
3 centimetres of internal diameter is consistent, outer diameter to inner-diameter portion be solid construction, 1 centimetre of 122 connecting portion of jet water spout, 113 thickness, six bolts
115 circle column of hole is arranged on 122 connecting portion 113 of jet water spout.A diameter of 0.5 centimetre of bolt hole 115.
It is all to be threadedly coupled that second valve 103, which connects jet water spout 122 and connected with the second nozzle 104, by second
Transversely length is namely parallel to the screw hole of 122 centerline direction of jet water spout, 1 centimeter length for setting in 103 inside meter of valve,
The screw thread of screw hole cooperation set with 103 internal diameter of the second valve is provided in 122 inside meter of jet water spout, it is tight by tightening screw thread
Close the second valve of connection 103 and jet water spout 122, likewise, in the second nozzle 104 far from the one end for more threading a pipe 110
The screw thread of screw hole cooperation set with 103 inside diameter surface of the second valve is provided on diameter surface, screw thread is tightened, by the second valve
103 closely connect the second nozzle 104.
In the present embodiment sensor be pressure gauge 105, thread a pipe more 110 third nozzle 114, the second nozzle 104 and
Intersection's unicom pressure gauge 105 of first nozzle 112 these three nozzle center lines, sensor vertical made of three centers in putting down
Face, and sensor vertical is set with ground, naturally it is also possible to it is not orthogonal to the plane of bottom surface and three center line compositions, pressure
The reason of table 105 is set herein is the 110 3 pipeline intersections that thread a pipe for the most true water flow pressure of flow more.Pressure gauge
105 with more siphunculus mouths be 1 centimetre by an internal diameter, and the cylinder pipeline of 1.4 centimetres of outer diameter connects, and cylinder pipeline is vertical
It it is highly 5 centimetres, there are one the 4th valve 103, pressure gauges for setting on the cylinder pipeline between pressure gauge 105 and more siphunculus mouths
105 are exactly based on the 4th valve 103 connects with cylinder pipeline, and cylinder pipeline 110 connects, while cylinder more with thread a pipe
Pipeline 110 is integrally formed and is made with thread a pipe more, and cylinder pipeline is provided with spiral shell far from the 110 one end outer surface of more threading a pipe
Line, 103 spout diameter of the 4th valve are provided with the screw hole worked in coordination with cylinder pipeline, rotate spiral shell by the 4th valve 103
Line close communication cylinder pipeline, same pressure gauge 105 is by being provided with screw thread, and the 4th valve 103 is close to pressure gauge 105
One end internal diameter is provided with becomes the matched screw hole of screw thread with pressure, tightens the screw thread of pressure gauge 105, pressure gauge 105 is closely connected
Lead on the 4th valve 103.4th valve 103 can be gate valve, butterfly valve, shut-off valve also with gate valve, select in the present embodiment
It is small gate valve.The 4th valve 103 of clearance realize pressure gauge 105 and thread a pipe more 110 connection and closing.
When the effect of pressure gauge is to express backsurging operation, flow, which encounters blocking, at the beginning leads to flow prospect pressure
Larger, when high pressure water flow rinses out tamper, flow rate of water flow can become larger rapidly and lead to interior flow advance pressure of threading a pipe more
Become smaller.The measurement range of pressure gauge 105 is depending on the hydraulic pressure at the water source that the backwash used is connect, pressure gauge in the present embodiment
105 are measured as 0-0.6MPa, and the sensitivity of pressure gauge 105 is 0.02MPa, if the water source hydraulic pressure of institute's unicom is larger, make
With the pressure gauge 105 of 0-1MPaMPa even 0-2MPa measurement ranges.The display screen diameter of pressure gauge 105 preferably equal to or
Person is more than 10 centimetres, the more big instantaneous variation for more easily seeing pressure of display screen diameter.The pointer of pressure gauge 105 is preferably deep
Color can quickly see its rotation within 2 meters, and what pressure gauge 105 was preferably selected refers to needle force table 105, digital intelligent pressure
105 1, power table be it is expensive also have be exactly number variation be not so good as pointer it is more intuitive.
The first valve 106 and third valve 101 are identical gate valve in the present embodiment, in the present invention the first valve 106 with
Third valve 101 can select gate valve, butterfly valve, shut-off valve and gate valve respectively, the present embodiment why select gate valve be because
Gate valve price is the cheapest, and only standard-sized sheet or fully closed during gate valve use.For draining only there are two types of standard-sized sheet draining, entirely
Close closing.Gate valve connects valve rod by gate valve handle 201, and valve rod connection spool 203, spool 203 is in 201 rotary course of gate valve handle
In only have standard-sized sheet to be connected with fully closed with two ports of gate valve, gate valve handle 201 is processed by being integrally formed, gate valve handle
201 bend to circle for elongated cylinder, and cylinder both ends connect to obtain, and gate valve handle 201 is provided with five supporting rods, and mutually
It is connected to 201 center of gate valve handle.Gate valve handle 201 is provided centrally with screw hole, the one end of valve rod far from spool 203 be provided with
Gate valve handle 201 is connect by the matched screw thread of 201 screw hole of gate valve handle by tightening screw thread with valve rod.
205 internal diameter of gate valve pipeline and thread a pipe 110 internal diameters and all consistent rice of outer diameter more, gate valve far from spool 203 two
There are two gate valve connectors 206 for end setting, and two 206 planes of gate valve connector are parallel to each other, and lock is provided on each connector outer diameter
Valve connecting portion 113,16 centimetres of 113 outer diameter of gate valve connecting portion, 1 centimetre of its internal diameter of thickness are closely connected to 206 outer diameter of gate valve connector.
And gate valve connecting portion 113 is provided with 6 gate valve bolts hole using molding is integrally machined with gate valve on each gate valve connecting portion 113
204, six 204 circle column of gate valve bolt hole are distributed on gate valve connecting portion 113.And each 204 size of gate valve bolt hole
Shape thicknesses position is consistent with the gate valve bolt hole 204 of 112 third nozzle 114 of the first nozzle.
Second drainpipe, 100 internal diameter outer diameter is consistent with the first draining and the connecting portion 113 and of the second drainpipe 100
The connecting portion 113 of one drainpipe 100 is consistent.The difference is that at least 1 meter of 100 length of the second drainpipe.Same second drainpipe
The gate valve bolt hole 204 of 100 connecting portions 113 sets 113 gate valve of connecting portion of big low height distribution mode and the first drainpipe 100
Bolt hole 204 is consistent.
Entirely the operation principle of water seal back purge system is：By tightening 6 on 100 connecting portion 113 of the second drainpipe
Bolt connects the second drainpipe 100 with third valve 101, tighten again on third valve 101 close to thread a pipe more 110 6
A bolt connection third valve 101 threads a pipe 110 more with, and 6 bolts being tightened in again on the first nozzle 112 will thread a pipe more
110 connect with the first valve 106.Screw thread on pressure gauge 105 and the screw hole on cylinder pipeline are closely tightened, connect pressure
Table 105, same operation connects jet water spout 122 with the second valve 103 and the second valve 103 is connected with the second nozzle 104.
During backwash, the second valve 103 and the 4th valve 103 are first closed, then open third valve 101 and then opens the first valve
106, the water in flashback tank 107 is discharged, is then shut off third valve 101, the 4th valve 103 is opened simultaneously, by tightening
Bolt on 122 connecting portion 113 of jet water spout, close communication high pressure fire fighting water, fire water pressure reach 0.2-0.5MPa, open the
Two valves 103 due to closing third valve 101, only open the first valve 106, therefore high pressure water flow can only be with usually draining side
To opposite quick flowing, achieve the purpose that backwash drainpipe 100 and flashback tank 107, although hydraulic pressure is higher at the beginning
The drainpipe 100 that small part flow can break through blocking is entered in flashback tank 107, thus the pressure threaded a pipe in 110 more more than
The hydraulic pressure at water source is high, reaches the measurement maximum value of pressure gauge 105.The pressure that pressure gauge 105 is shown is continuously 0.6MPa, when prominent
The high pressure water flow moment so backwashed washes away the tampers such as the mud of blocking, the pressure moment more threaded a pipe in 110 significantly under
Drop causes the pressure water at water source, therefore the pointer of pressure gauge 105 can significantly be swung, and at this moment immediately turns off the second valve 103, then
Turn off water source switch, a large amount of flows in flashback tank 107 is avoided to be rushed in gas piping 108 by high pressure water flow strikes.In order to carry
High safe operation of the boiler reliability, when rinsing operation, boiler operatiopn should be run with coal gas, prevent a large amount of moisture content from abruptly entering
Gas piping causes nozzles to stop working.It needs to verify whether excessive water seal using the boiler of burning when namely backwashing
Enter gas piping.
Embodiment 2
The present embodiment provides a kind of water seal arrangement, the water seal backwash including gas piping 108 and any of the above-described
Device, flashback tank 107 connect with gas piping 108 and for forming water seal to gas piping 108.Gas piping 108 and water seal
It is connected between case 107 by flashback tank water inlet pipe 111,10 centimetres of 111 internal diameter of flashback tank water inlet pipe, 12 centimetres of outer diameter, flashback tank
107 one end far from first interface are provided with second interface, and second interface is communicated with one section of 5m's long by being integrally formed processing
Flashback tank water inlet pipe 111, the one end of flashback tank water inlet pipe 111 far from flashback tank 107 are provided with into water pipe jointing part 113, water inlet
16 centimetres of 113 outer diameter of pipe jointing part, internal diameter is closely connect with the outer diameter of flashback tank water inlet pipe 111.Water inlet pipe jointing part 113 and water
107 water inlet pipe of joint sealing uses integrated molding processing and thickness is 1 centimetre, the circle column distribution on water inlet pipe jointing part 113
There are 6 a diameter of 1 centimetre of bolts hole 115.The 5th valve 109, the 5th valve 109 and the first valve has been bolted
106 be the valve for agreeing to model, and flashback tank water inlet pipe 111 is connected by bolt both ends.Namely the 5th valve 109 is by flashback tank
It is two sections that water inlet pipe 111, which is divided to, and the one end of two sections of flashback tank water inlet pipes 111 far from the 5th valve 109 is divided using molding is integrally machined
It Lian Tong not flashback tank 107 and gas piping 108.Wherein there are one 50 centimetres vertically upward for one end of connection gas piping 108
Bending, in order to which coal gas ponding preferably discharges, while a large amount of flows during backwash is avoided to rush in gas piping 108.
As different from Example 1, the sensor in the present embodiment water seal back purge system is tachograph rather than pressure
Table 105, meanwhile, tachograph installation is different from the position of 1 pressure gauge 105 of embodiment, and tachograph is located at 122 and second valve of jet water spout
Between door 103, flow measurement ranging from 0-20m/s that tachograph show, tachograph sensitivity is 0.2m/s.Use current meter
When principle is backsurging operation, the flow of jet water spout 122 leads to flow velocity because of tamper is encountered in flashback tank drainpipe 100
Smaller, when flow is rinsed well the moment of tamper, the flow rate of water flow moment in jet water spout becomes larger.Turn off high-pressure water at this time to open
Backsurging operation can be completed in pass.Therefore it is feasible to substitute pressure gauge 105 using current meter.When starting backwash, by water
Water in joint sealing 107 is drained or is drained, and high-pressure water is bolted in jet water spout 122, and high-pressure water pressure is 0.2MPa,
The outlet stream speed of offer is 20m/s.Water source switch temporary close when connecting water source.It is then shut off third valve 101, opens the
One valve 106 finally rotates the second valve handle 103a and opens the second valve 103.Water source switch is opened, flow velocity moment reaches most
Big value, but flow encounters blocking and drops to 0-5m/s.It washes out to dredge when flow and blocks moment, water velocity moment reaches water source offer
Water flow velocity maximum value 20m/s, close water source switch immediately at this time, achieve the purpose that backwash.In order to improve boiler safety fortune
Row reliability, when rinsing operation, boiler operatiopn should be run with coal gas, prevented a large amount of moisture content from abruptly entering gas piping, made
Stop working into nozzles.It needs to verify whether that excessive water seal enters gas pipe using the boiler of burning when namely backwashing
Road.
Following effect can be realized using water seal back purge system provided by the invention：
Water seal back purge system provided by the invention connects high-pressure water, high pressure water flow backwashing water by jet water spout 122
Joint sealing and drainpipe achieve the purpose that mud dirt etc. is rinsed clean dredging flashback tank and drainpipe, while ensure to be flushed into
Only a small amount of high pressure water enters gas piping during work(.Whole process is easy to operate, saves the matter that manpower protects dredging drainpipe
Amount does not influence water seal for coal gas safety.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of water seal back purge system, which is characterized in that including：Flashback tank, the flashback tank have first for draining
Interface,
It threads a pipe, more siphunculus mouths have the first nozzle, the second nozzle and third nozzle, and the first interface connects institute more
The first nozzle is stated, the second valve is provided at second nozzle and for connecting water source, the is provided at the third nozzle
Three valves are simultaneously used for communicated drainage pipe；And
For obtaining the sensor of the inside water pressure information of threading a pipe more.
2. water seal back purge system according to claim 1, which is characterized in that the sensor be water pressure gauge, the biography
Sensor is set to the pipeline intersection to thread a pipe and the hydraulic pressure letter for obtaining the pipeline intersection to thread a pipe more more
Breath.
3. water seal back purge system according to claim 1, which is characterized in that further include jet water spout, the jet water spout with
The second valve connection, the ratio between the internal diameter of first nozzle and the internal diameter of the jet water spout are 3-10:1.
4. water seal back purge system according to claim 3, which is characterized in that first valve is lock with third valve
Valve.
5. water seal back purge system according to claim 4, which is characterized in that first nozzle and the first interface
Between be provided with the first valve.
6. water seal back purge system according to claim 1, which is characterized in that first nozzle and the third pipe
The junction of mouth is both provided with sealing ring.
7. water seal back purge system according to claim 1, which is characterized in that the jet water spout and second valve it
Between be provided with sealing ring for sealing.
8. a kind of water seal arrangement, which is characterized in that recoil including gas piping and the water seal of claim 1-7 any one of them
Cleaning device, the flashback tank connect with the gas piping and are used to form water seal to the gas piping.
9. water seal arrangement according to claim 8, which is characterized in that the connectivity points of the flashback tank and the gas piping
Higher than the first interface.
10. water seal arrangement according to claim 8, which is characterized in that the flashback tank water inlet pipe is provided with to connect
5th valve of gas piping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810216818.5A CN108223850A (en) | 2018-03-15 | 2018-03-15 | A kind of water seal back purge system and water seal arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810216818.5A CN108223850A (en) | 2018-03-15 | 2018-03-15 | A kind of water seal back purge system and water seal arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108223850A true CN108223850A (en) | 2018-06-29 |
Family
ID=62658600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810216818.5A Pending CN108223850A (en) | 2018-03-15 | 2018-03-15 | A kind of water seal back purge system and water seal arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223850A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027269A (en) * | 2018-09-12 | 2018-12-18 | 天津腾达集团有限公司 | A kind of butterfly valve for facilitating coutroi velocity and capable of showing flow velocity |
| CN109281372A (en) * | 2018-11-09 | 2019-01-29 | 魏敏生 | A kind of drainage equipment for drainage system |
| CN112665780A (en) * | 2020-12-08 | 2021-04-16 | 北京科技大学 | Device for preventing pressure sensor from being solidified and using method thereof |
-
2018
- 2018-03-15 CN CN201810216818.5A patent/CN108223850A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027269A (en) * | 2018-09-12 | 2018-12-18 | 天津腾达集团有限公司 | A kind of butterfly valve for facilitating coutroi velocity and capable of showing flow velocity |
| CN109281372A (en) * | 2018-11-09 | 2019-01-29 | 魏敏生 | A kind of drainage equipment for drainage system |
| CN109281372B (en) * | 2018-11-09 | 2020-10-09 | 浙江金恩食品科技股份有限公司 | Drainage equipment for drainage engineering |
| CN112665780A (en) * | 2020-12-08 | 2021-04-16 | 北京科技大学 | Device for preventing pressure sensor from being solidified and using method thereof |
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