CN207478096U - A kind of feeding apparatus of mist eliminator flushing water tank - Google Patents

Abstract

The utility model is related to coal-fired power generator set fields, disclose a kind of feeding apparatus of mist eliminator flushing water tank, it is pumped including dispatch pipe, dispatch, the first connection bucket is provided on dispatch pipe and positioned at side of the dispatch pump far from mist eliminator flushing water tank, the both sides of first connection bucket are communicated with dispatch pipe, the connecting tube being connect with the dispatch pipe close to dispatch pump side is fixed in first connection bucket, connecting tube is connected with filter bag on one end far from dispatch pipe, both ends are provided on dispatch pipe and connect the differential pressure transmitter that the dispatch pipe of bucket both sides is connected with positioned at first respectively.The utility model has the following advantages and effect：Water is filtered using the filter bag in the first connection bucket, the hydraulic pressure being located in the dispatch pipe of the first connection bucket both sides is measured using differential pressure transmitter, filter bag is cleaned according to the numerical value operating personnel of differential pressure, so as to ensure the normal filtration effect of filter bag, it can finally reduce the possibility that sundries is carried in the water being conveyed into absorption tower.

Description

A kind of feeding apparatus of mist eliminator flushing water tank

Technical field

The utility model is related to coal-fired power generator set field, more particularly to a kind of feeding apparatus of mist eliminator flushing water tank.

Background technology

At present, to meet tightened up environmental requirement, many coal-burning power plants set wet-esp after desulfuration absorbing tower System.Wet electricity needs a large amount of flushing waters, which washes away after pole plate, flows out, partly recycles, part from ash bucket It is outer to line up as wet electric waste water.Demister is mainly made of fixing devices such as waveform blade, plate, strips, is being transported on absorption tower During row, it is 10--60 microns of " mist " to be also easy to produce grain size, and " mist " not only contains moisture, it also dissolved with sulfuric acid, sulfate, Sulfur dioxide etc., while the stained and heavy corrosion of wind turbine, heat exchanger and flue is also resulted in, therefore, on wet desulfurizing process The requirement of demisting is proposed to absorption equipment, cleaned gas wants demisting before absorption tower is left.

At present, notification number CN204675875U, the day for announcing disclose a kind of wet electricity for the Chinese patent on the 30th of September in 2015 Waste water reuse system is absorbed including draining pump, high-efficiency clarifier, mist eliminator flushing water tank, mist eliminator flushing water pump, wet desulphurization Tower and sludge pump；The import connection of draining pump and high-efficiency clarifier, top water outlet and the mist eliminator flushing water of high-efficiency clarifier The import connection of case, the mud mouth of high-efficiency clarifier bottom are connected to by sludge pump at the stock tank of absorption tower lower part, demister punching The water outlet of water tank is connected to the spray piping interface of absorption tower top demister by mist eliminator flushing water pump.

Water in mist eliminator flushing water tank is displaced into suction by this kind of wet electric waste water reuse system using mist eliminator flushing water pump It receives on the spray piping interface in tower, you can absorption tower demisting device is rinsed；Although be wherein by high-efficiency clarifier Through being filtered to water, but still it is possible that can be there are sundries, again in mist eliminator flushing water pump and mist eliminator flushing water tank Since requirement of the absorption tower demisting device to flushing water matter in itself is higher, when the flushing water with sundries is by mist eliminator flushing water pump After being delivered in absorption tower for rinsing demister, these sundries easily cause the blocking of demister.

Utility model content

The purpose of this utility model is to provide a kind of feeding apparatus of mist eliminator flushing water tank, can reduce and be conveyed into absorption The possibility of sundries is carried in water in tower.

The above-mentioned technical purpose of the utility model technical scheme is that：A kind of mist eliminator flushing water The feeding apparatus of case is connected with mist eliminator flushing water tank including one end and dispatch pipe that the other end is connected with absorption tower, is arranged on Dispatch pump on dispatch pipe is provided with the on the dispatch pipe and positioned at side of the dispatch pump far from mist eliminator flushing water tank One connection bucket, it is described first connection bucket both sides communicated with the dispatch pipe, it is described first connection bucket in be fixed with it is close The connecting tube of the dispatch pipe connection of the dispatch pump side, the connecting tube are connected on one end far from the dispatch pipe Filter bag is provided with the difference that both ends are connected respectively with connecting the dispatch pipe of bucket both sides positioned at described first on the dispatch pipe Pressure transmitter.

By using said program, when the water in mist eliminator flushing water tank pumps dispatch by dispatch goes out, dispatch at this time Water in pipe can be first flowed into the first connection bucket, wherein can be carried out using the filter bag in the first connection bucket to water Filter, so as to reduce the possibility that sundries is carried in the water being conveyed into absorption tower；It is measured simultaneously using differential pressure transmitter and is located at the Hydraulic pressure in the dispatch pipe of one connection bucket both sides, represents that filter bag is normally filtered water if differential pressure constant；And such as Fruit differential pressure occurs bigger variation and then represents that excessive sundries may have been accumulated in filter bag, not smooth so as to cause flow, Operating personnel just need to clean filter bag at this time, so as to ensure the normal filtration effect of filter bag, can finally reduce It is conveyed into the possibility that sundries is carried in the water in absorption tower.

The utility model is further arranged to：The side of the first connection bucket far from the connecting tube offers and institute The apopore that dispatch pipe communicates is stated, filter screen is fixed in the apopore.

By using said program, using the filter screen in apopore to being carried out again from the water after filter bag filtering Secondary filtering finally can further reduce the possibility that sundries is carried in the water being conveyed into absorption tower.

The utility model is further arranged to：The filter screen is in be open towards the coniform of the connecting tube side.

By using said program, using by filter screen setting in opening towards the coniform of connecting tube side, at this time by The sundries that filter screen filtration is got off can be pooled at the medium position of filter screen, compared to sundries when using smooth filter screen It is evenly distributed on filtering net surface, the position that sundries is distributed on filter screen at this time is more concentrated, and can finally reduce sundries The possibility of Severe blockage is caused to filter screen when being distributed on filter screen.

The utility model is further arranged to：Riffled tube, the connecting tube are fixed on the sack of the filter bag Side outer wall on offer external screw thread for being threaded on the riffled tube.

By using said program, the external screw thread in connection pipe outer wall is threaded in using the riffled tube on filter bag On, filter bag can be detachably connected in connecting tube at this time, when needing to clean the sundries in filter bag, operator Member only needs to back out riffled tube, finally can eaily dismount filter bag.

The utility model is further arranged to：End cap is removably connected on the first connection bucket, on the end cap It is provided with observation window.

By using said program, the first connection bucket is sealed, while be conveniently operated using observation window using end cap Personal observations are to the streamflow regime in the first connection bucket, so as to be conveniently operated personnel in time to the unfavorable condition in the first connection bucket It is handled.

The utility model is further arranged to：Shunt valve, the both ends of the shunt valve are additionally provided on the dispatch pipe It is connected respectively with connecting the dispatch pipe of bucket both sides positioned at described first, is provided on the shunt valve and is connect with described first The second identical connection bucket of barrel structure, bypass valve is both provided on the shunt valve and positioned at the both sides of the described second connection bucket, Shutoff valve is both provided on the dispatch pipe and positioned at the both sides of the described first connection bucket.

By using said program, when needing to clean the filter bag in the first connection bucket and ladle body, the is closed The shutoff valve of one connection bucket both sides, and open the bypass valve of the second connection bucket both sides, at this time the first connection bucket do not work and second It connects bucket to start to work, so as to continue, to being filtered in the water of dispatch Bottomhole pressure, to avoid because needing using the second connection bucket It cleans the first connection bucket and causes entire feeding apparatus that cannot run well.

The utility model is further arranged to：The first connection bucket, which is connect with described second on bucket, is both provided with discharge It manages, drain valve is provided on the delivery pipe.

By using said program, when needing to clean the first connection bucket or the second connection bucket, first is closed It connects the shutoff valve of bucket both sides or closes the bypass valve of the second connection bucket both sides, then turn on the drain valve on delivery pipe, this When water in the first connection bucket or the second connection bucket can lead in drain valve and emit, the final people that is convenient to operation Follow-up cleaning of the member to the first connection bucket or the second connection bucket.

The utility model is further arranged to：Sealing cover is fixed on the delivery pipe.

By using said program, delivery pipe is sealed using sealing cover, so as to further reduce water from delivery pipe The possibility that internal leakage is gone out.

In conclusion the utility model has the advantages that：

1. when the water in mist eliminator flushing water tank pumps dispatch by dispatch goes out, the water in dispatch pipe can first flow at this time Enter into the first connection bucket, wherein can be filtered using the filter bag in the first connection bucket to water, be conveyed into so as to reduce The possibility of sundries is carried in water in absorption tower；The dispatch for being located at the first connection bucket both sides is measured using differential pressure transmitter simultaneously Hydraulic pressure in pipe represents that filter bag is normally filtered water if differential pressure constant；And if differential pressure generation is bigger Change and then represent that excessive sundries may have been accumulated in filter bag, not smooth so as to cause flow, operating personnel just need at this time Filter bag is cleaned, so as to ensure the normal filtration effect of filter bag, can finally reduce the water being conveyed into absorption tower In carry sundries possibility；

2. when needing to clean the filter bag in the first connection bucket and ladle body, cutting for the first connection bucket both sides is closed Valve is flowed, and opens the bypass valve of the second connection bucket both sides, the first connection bucket does not work at this time and the second connection bucket is started to work, from And continued using the second connection bucket to being filtered in the water of dispatch Bottomhole pressure, avoid since it is desired that clean first connect bucket and Cause entire feeding apparatus that cannot run well.

Description of the drawings

Fig. 1 is the utility model structure diagram；

Fig. 2 is that connection relation is cutd open between dispatch pipe in the utility model, the first connection bucket, connecting tube, filter bag, filter screen View；

Fig. 3 is the enlarged drawing in A portions in Fig. 2.

In figure：1st, dispatch pipe；11st, shutoff valve；2nd, dispatch pumps；3rd, the first connection bucket；31st, connecting tube；311st, external screw thread； 32nd, filter bag；321st, riffled tube；33rd, apopore；331st, filter screen；34th, end cap；341st, observation window；4th, differential pressure transmitter； 5th, shunt valve；51st, the second connection bucket；52nd, bypass valve；6th, delivery pipe；61st, drain valve；62nd, sealing cover；7th, mist eliminator flushing water Case；8th, absorption tower.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

A kind of feeding apparatus of mist eliminator flushing water tank, with reference to Fig. 1, the feeding apparatus of this kind of mist eliminator flushing water tank includes One end is connected on mist eliminator flushing water tank 7 and the other end is connected to the dispatch pipe 1 on absorption tower 8, on dispatch pipe 1 and close to removing The side of day with fog flush box 7 is equipped with dispatch pump 2, and dispatch pump 2 is used to provide power during flow flowing.

With reference to Fig. 2, the first connection bucket 3 is also associated on dispatch pipe 1, and the first connection bucket 3 is located at dispatch pump 2 far from demisting The side of device flush box 7（With reference to Fig. 1）, wherein the both sides of the first connection bucket 3 are communicated with dispatch pipe 1, while the first connection Connecting tube 31 is welded in bucket 3, and connecting tube 31 is connected with pumping the dispatch pipe 1 of 2 sides close to dispatch；Wherein connecting tube 31 is separate External screw thread 311 is offered on the side outer wall of 1 one end of dispatch pipe（With reference to Fig. 3）.

With reference to Fig. 2, connecting tube 31 is connected with filter bag 32 on one end far from dispatch pipe 1, and filter bag 32 is used for from even The water flowed out in take over 31 is compared efficient filtering；It is wherein bolted on the sack of filter bag 32 and is useful for screw thread The riffled tube 321 being connected on external screw thread 311（With reference to Fig. 3）；The upper end of the first connection bucket 3 is detachably connected by bolt simultaneously End cap 34 is connected to, and observation window 341 is installed on end cap 34（With reference to Fig. 1）, so as to be conveniently operated personnel, observation first connects in real time Connect the situation in bucket 3.

With reference to Fig. 2, the first side of the connection bucket 3 far from connecting tube 31 is further opened with apopore 33, apopore 33 with it is close Absorption tower 8（With reference to Fig. 1）The dispatch pipe 1 of side communicates, and filter screen 331 has wherein been bolted in apopore 33, filtering Net 331 for filtering water again, so as to be further ensured that the quality of water；The section of filter screen 331 is in opening court simultaneously To the coniform of 31 side of connecting tube.

With reference to Fig. 1, differential pressure transmitter 4, the wherein both ends of differential pressure transmitter 4 point are also equipped with by bolt on dispatch pipe 1 It is not connected with connecting the dispatch pipe 1 of 3 both sides of bucket positioned at first, differential pressure transmitter 4 can measure 3 both sides of the first connection bucket at this time Dispatch pipe 1 between differential water pressures, so as to be conveniently operated the filtering situation that personnel know the filter bag 32 in the first connection bucket 3； Simultaneously shutoff valve 11 is mounted on dispatch pipe 1 and positioned at the both sides of the first connection bucket 3.

It is also associated with shunt valve 5 on dispatch pipe 1, and the both ends of shunt valve 5 are respectively with connecting the rows of 3 both sides of bucket positioned at first Pipe 1 is sent to communicate, the second connection bucket 51 is wherein also equipped on shunt valve 5, and the structure of the second connection bucket 51 connect bucket 3 with first It is identical；Be mounted on bypass valve 52 on shunt valve 5 and positioned at the both sides of the second connection bucket 51 simultaneously, wherein the first connection bucket 3 with Delivery pipe 6 is welded on second connection bucket 51, delivery pipe 6 is used to discharge moisture, while be also equipped with drain valve on delivery pipe 6 61, and sealing cover 62 has been bolted at the port of delivery pipe 6.

Principle：With reference to Fig. 2, when mist eliminator flushing water tank 7（With reference to Fig. 1）When interior water is gone out by dispatch 2 dispatch of pump, this When dispatch pipe 1 in water can first flow into the first connection bucket 3, wherein utilizing the filter bag 32 and mistake in the first connection bucket 3 Strainer 331 is simultaneously filtered water, and absorption tower 8 is conveyed into so as to reduce（With reference to Fig. 1）The possibility of sundries is carried in interior water Property.

With reference to Fig. 1, the hydraulic pressure being located in the dispatch pipe 1 of the first 3 both sides of connection bucket is measured using differential pressure transmitter 4, if Differential pressure constant then represents that filter bag 32 is normally filtered water；And it represents to filter if bigger variation occurs if differential pressure Bag 32 in may accumulate excessive sundries, it is not smooth so as to cause flow, at this time operating personnel just need to filter bag 32 into Row cleaning so as to ensure the normal filtration effect of filter bag 32, can finally reduce in the water being conveyed into absorption tower 8 with miscellaneous The possibility of object.

With reference to Fig. 1, when needing to the filter bag 32 and ladle body in the first connection bucket 3（With reference to Fig. 2）When being cleaned, close The shutoff valve 11 of first 3 both sides of connection bucket, and the bypass valve 52 of the second 51 both sides of connection bucket is opened, first connect bucket 3 not at this time Work and second connection bucket 51 start to work, so as to using second connection bucket 51 continue in dispatch pipe 1 flowing water carry out Filtering is avoided since it is desired that cleaning the first connection bucket 3 and causing entire feeding apparatus that cannot run well.

This specific embodiment is only explanation to the utility model, is not the limitation to the utility model, ability Field technique personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but As long as it is all protected in the right of the utility model by Patent Law.

Claims (8)

1. a kind of feeding apparatus of mist eliminator flushing water tank, including one end and mist eliminator flushing water tank（7）Be connected and the other end with Absorption tower（8）Connected dispatch pipe（1）, be arranged on dispatch pipe（1）On dispatch pump（2）, it is characterised in that：The dispatch pipe （1）Above and positioned at the dispatch pump（2）Far from mist eliminator flushing water tank（7）Side be provided with the first connection bucket（3）, described One connection bucket（3）Both sides with the dispatch pipe（1）It communicates, the first connection bucket（3）It is inside fixed with and the close row Send pump（2）The dispatch pipe of side（1）The connecting tube of connection（31）, the connecting tube（31）Far from the dispatch pipe（1）'s Filter bag is connected on one end（32）, the dispatch pipe（1）On be provided with both ends and connect bucket with positioned at described first respectively（3）Two The dispatch pipe of side（1）Connected differential pressure transmitter（4）.

2. a kind of feeding apparatus of mist eliminator flushing water tank according to claim 1, it is characterised in that：First connection Bucket（3）Far from the connecting tube（31）Side offer and the dispatch pipe（1）The apopore communicated（33）, the apopore （33）Inside it is fixed with filter screen（331）.

3. a kind of feeding apparatus of mist eliminator flushing water tank according to claim 2, it is characterised in that：The filter screen （331）In opening towards the connecting tube（31）Side it is coniform.

4. a kind of feeding apparatus of mist eliminator flushing water tank according to claim 3, it is characterised in that：The filter bag （32）Sack on be fixed with riffled tube（321）, the connecting tube（31）Side outer wall on offer to be threadedly coupled In the riffled tube（321）On external screw thread（311）.

5. a kind of feeding apparatus of mist eliminator flushing water tank according to claim 4, it is characterised in that：First connection Bucket（3）On be removably connected with end cap（34）, the end cap（34）On be provided with observation window（341）.

6. a kind of feeding apparatus of mist eliminator flushing water tank according to claim 5, it is characterised in that：The dispatch pipe （1）On be additionally provided with shunt valve（5）, the shunt valve（5）Both ends connect bucket with positioned at described first respectively（3）The institute of both sides State dispatch pipe（1）It is connected, the shunt valve（5）On be provided with and connect bucket with described first（3）The second identical connection bucket of structure （51）, the shunt valve（5）Above and positioned at the described second connection bucket（51）Both sides be both provided with bypass valve（52）, the dispatch Pipe（1）Above and positioned at the described first connection bucket（3）Both sides be both provided with shutoff valve（11）.

7. a kind of feeding apparatus of mist eliminator flushing water tank according to claim 6, it is characterised in that：First connection Bucket（3）Bucket is connect with described second（51）On be both provided with delivery pipe（6）, the delivery pipe（6）On be provided with drain valve（61）.

8. a kind of feeding apparatus of mist eliminator flushing water tank according to claim 7, it is characterised in that：The delivery pipe （6）On be fixed with sealing cover（62）.