CN203212442U - Mechanical steam recompression heat pump system for sludge drying - Google Patents
Mechanical steam recompression heat pump system for sludge drying Download PDFInfo
- Publication number
- CN203212442U CN203212442U CN 201320214942 CN201320214942U CN203212442U CN 203212442 U CN203212442 U CN 203212442U CN 201320214942 CN201320214942 CN 201320214942 CN 201320214942 U CN201320214942 U CN 201320214942U CN 203212442 U CN203212442 U CN 203212442U
- Authority
- CN
- China
- Prior art keywords
- steam
- hollow
- drying machine
- vapour
- recompression
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The utility model relates to a mechanical steam recompression heat pump system for sludge drying. The system comprises a hollow blade type drying machine and a steam compressor, wherein a secondary steam outlet (4) of the hollow blade type drying machine is communicated with a secondary steam inlet of the steam compressor, and a recompression steam outlet of the steam compressor is connected into the hollow blade type drying machine respectively through a hollow thermal shaft steam inlet (1) and a jacket steam inlet (13). According to the mechanical steam recompression heat pump system for sludge drying, all latent heat of secondary steam generated in a sludge drying process is recycled, and secondary steam is taken as a recompression steam heat source after being subjected to recompression and enthalpy value increase, so that primary energy is saved, the energy consumption of sludge drying is greatly reduced, and meanwhile, pollution caused by devices, such as boilers, is avoided.
Description
Technical field
The utility model relates to sludge drying recycling technical field, specifically, relates to a kind of mechanical vapour recompression heat pump for sludge drying.
Background technology
Serious day by day along with the city environmental pollution problem disposed as the sewage of municipal pollution treatment main contents and sludge treatment and more and more to be paid attention to gradually.The Eleventh Five-Year Plan period, national town sewage processing power reaches 1.0 * 10
8m
3/ d, annual sewage load reaches 3.0 * 10
10m
3, sludge yield will reach 3.0 * 10
7T (80% water ratio).Along with wastewater treatment rate with handle the increase of the degree of depth, sludge discharge is with the speed increment more than the annual 10-15%, but supporting sludge treatment is disposed and but do not obtained bigger progress.Owing to reasons such as technology, policies, domestic most of city sewage and sludge all is to utilize the landfill disposal options, does not carry out harmless treatment, and the secondary pollution problem of mud is very serious.A large amount of landfills of high water content sludge cause taking valuable land resources, so that many cities can not find landfill yard.The mud percolate becomes phreatic source of pollution in many areas, and landfill yard has also become the mosquito breeding ground, and landfill gas then becomes the source of pollution of atmosphere.Developed country's sludge treatment such as Europe and North America are disposed and are progressively turned to the resource utilization based on sludge drying to be recycling as the master, and burning gradually reduces, and the ratio of mud landfill descends gradually, even forbids the mud landfill.And the sludge drying key link that to be mud realize is innoxious, minimizing, recycling treatment are disposed is the prerequisite that recycling sludge utilizes.
CN202610089U discloses a kind of sludge drying treatment system, comprise kiln, the hot-air duct that is connected with kiln, described hot-air duct are connected setting with heat power supply device, described heat power supply device comprises control center, blower fan and air channel, and described air channel is provided with venting port.
CN102180578A relates to a kind of sludge drying and incineration system, comprises sludge drying machine and thermal source; The sludge drying machine comprises at least one first sludge drying module; The first sludge drying module comprises first shell of sealing, the first mud supporting plate, mud-scraping mechanism, first blower fan, the apparatus for evaporation condensation of heat conduction and first surface cooler that is connected with thermal source.Apparatus for evaporation condensation comprises the compressor, condenser and the vaporizer that connect into the loop, at refrigerant and the hydathode of loop internal recycle.By condenser heat is passed to the first mud supporting plate, mud is heated; Blow by first blower fan, the air-flow that form to accelerate evaporation in Sludge Surface, and recirculating air is carried out the condensation dehydration by vaporizer, the hot blast that water capacity is low make mud energy-conservation mummification fast.
Process as an energy net disbursement, the traditional sludge drying process often directly utilizes primary energy source, or use residual heat from boiler fume, even directly adopt electrical drying, its energy is up to arriving 3200-3500kJ/kg water, and consumed power 45-90kW/t water, the optional equipment complexity, the cost of investment height that need.
The utility model content
The purpose of this utility model is at prior art problems, a kind of mechanical vapour recompression heat pump for sludge drying is provided, the mechanical vapour recompression machine technology MVR that the utility model utilizes Pistonless compressor to drive handles mud, can reduce energy consumption, avoids polluting.
For reaching this purpose, the utility model by the following technical solutions:
A kind of mechanical vapour recompression heat pump for sludge drying, described system comprises hollow paddle type drying machine and vapour compressor; The secondary steam outlet of described hollow paddle type drying machine is communicated with the secondary steam entrance of vapour compressor, and the recompression vapour outlet of described vapour compressor is connected in the hollow paddle type drying machine by hollow hot box steam-in and jacket steam entrance respectively.
In the utility model, wet mud produces secondary steam after by described hollow paddle type drying machine drying treatment, and this secondary steam enters vapour compressor and is collapsed into recompression steam; And then compressed vapour flows back in the hollow paddle type drying machine.
Between the secondary steam entrance of the outlet of the secondary steam of described hollow paddle type drying machine and vapour compressor, be provided with the secondary steam separator, be provided with slag liquid receiving tank below it.The described secondary steam secondary steam separator filtering separation liquid of slagging tap of flowing through.
Described secondary steam separator comprises the separator cylindrical shell, and described separator cylindrical shell is provided with the separator steam inlet pipe, and the stack shell circumference axial and the separator cylindrical shell of described separator steam inlet pipe is tangent.
Described second separator inside is provided with the multilayer Stainless Steel Cloth, dust and the drop carried secretly in the separable secondary steam of Stainless Steel Cloth.
Described separator cylindrical shell is divided into separator upper shell and separator lower shell, and described separator upper shell is bigger than the barrel diameter of separator lower shell; Described separator steam inlet pipe is arranged on the separator lower shell stack shell, and described Stainless Steel Wire stratum reticulare is arranged on the junction of separator upper shell and lower shell.
The structure design of described separator steam inlet pipe can guarantee to form eddy flow after secondary steam enters the cylindrical shell of secondary steam separator.Enough fluid spaces are reserved in the bottom of secondary steam separator, and at cylindrical shell outer setting first liquidometer; Secondary steam separator top arranges the separator steam outlet, and secondary steam separator cylindrical shell bottom arranges separates the outlet of slag liquid, and slag liquid receiving tank is set.Described secondary steam separator has adopted multiple separate mode.Secondary steam enters the secondary steam separator and produces eddy flow and separating impurity by the separator steam inlet on the one hand, and secondary steam is by interior dust and the drop of carrying secretly in the further separated secondary steam of Stainless Steel Cloth of establishing on the other hand.At last, the secondary steam after the filtration is discharged by the outlet of separator secondary steam, and enters vapour compressor by the secondary steam magnetic valve.
Described vapour compressor is single screw rod water vapor compression machine.Described hollow paddle type drying machine connects condensation water tank; Described condensation water tank is connected into inner screw and the secondary air-breathing make-position that meshes of star-wheel in single screw rod water vapor compression machine simultaneously, is disposed with under meter, stopping valve, water jet pump and cooling system magnetic valve on its connecting pipeline.Condensation water tank is collected condensed water of condensation in the hollow paddle type drying machine, and this water of condensation is used for single screw rod water vapor compression machine is carried out atomizing spray.When single screw rod water vapor compression machine is worked, enter single screw rod water vapor compression machine compression from secondary steam entrance suction secondary steam, carry out atomizing spray in the air-breathing make-position of screw rod and the secondary engagement of star-wheel by the atomizing spray mouth.Spray into the water of condensation of single screw rod water vapor compression machine on the one hand because the high-speed rotation of screw rod forms moisture film, seal, and play certain lubrication; In the compression process of steam, evaporate on the other hand, eliminate the superheating temperature that produces after the vapour compression, play cooling.
Be provided with first electrical auxiliary heater in the described condensation water tank, in order to regulate the condensate temperature in the condensation water tank; Its sidepiece is provided with not condensing venting port, and it is regulated magnetic valve with pressure and links to each other.Perhaps, described not condensing venting port is in series with pressure adjusting magnetic valve and water ring vacuum pump successively.
Drain solenoid valve also is installed on the described condensation water tank, and unnecessary water of condensation discharges by drain solenoid valve in the condensation water tank.Described condensation water tank also is provided with water of condensation waste heat recovery plate-type heat exchanger, and this water of condensation waste heat recovery plate-type heat exchanger links to each other with described drain solenoid valve.
The atomizing spray of vapour compressor is directly taken from water of condensation in the condensation water tank; In the condensation water tank, be provided with first electrical auxiliary heater, with the temperature loss of compensation water of condensation in transporting the pipeline process, when described single screw rod water vapor compression machine is carried out atomizing spray, can make the water spray temperature near the exhaust temperature of vapour compressor, strengthen the compression effectiveness of recompression gas.In the operational process, need control by liquid level, make the condensation water tank median water level be higher than the electrical auxiliary heater certain height; Water ring vacuum pump on the condensation water tank and pressure are regulated magnetic valve and are used for regulating the interior pressure of condensation water tank, and get rid of the wherein not condensing of accumulation.Unnecessary water of condensation is by the discharging of condensation water tank drain solenoid valve.
The secondary steam outlet of described hollow paddle type drying machine is communicated with the secondary steam entrance of vapour compressor through the secondary steam magnetic valve; The recompression vapour outlet of described vapour compressor is communicated with the hollow paddle type drying machine through the recompression steam electromagnetic valve.
Be provided with the steam compensation tank by first T-valve on the pipeline of the recompression vapour outlet connection hollow paddle type drying machine of described vapour compressor.Be provided with second electrical auxiliary heater in the steam compensation tank, described steam compensation tank produces steam by second electrical auxiliary heater, and this steam replenishes influent stream in the recompression steam of hollow paddle type drying machine.In the steam compensation tank, by second electrical auxiliary heater wherein water is added thermogenesis steam, the steam of generation is used for compensation because recompression delivery of steam pipeline leaks heat and the steam of condensation loss, plays the effect of keeping system pressure simultaneously.The water of steam compensation tank can also can directly adopt the water of condensation in the condensation water tank from external water source, perhaps the extraneous water source behind the employing recovery condensed water heat.In the steam compensation tank adjusting of pressure and not the discharging of condensing realize by steam compensation tank magnetic valve.
Described hollow paddle type drying machine comprises hollow hot box and the drying machine driving mechanism that is connected; Described hollow hot box is provided with hollow blade, and described hollow blade is skewed and is fixedly connected on the hollow hot box.
Described hollow paddle type drying machine comprises at least one hollow hot box and drying machine driving mechanism, and at least one described hollow hot box is connected with described drying machine driving mechanism; Described each hollow hot box is provided with at least one hollow blade.
Each hollow blade is welded by the rectangle stainless steel scraper plate of two fan-shaped steel plates, trilateral steel plate and bottom, and two fan-shaped steel plates of each hollow blade take the form of inclined plane and are fixedly connected on the described hollow hot box.Two fan-shaped steel plates of hollow blade are that two main heat transfer sides become the inclined-plane, and when mud contacted with this inclined-plane, along with the rotation of hollow blade, the mud of mummification sliped off from chamfered surface soon, and heating surface is brought in constant renewal in, and have strengthened heat transfer.The mud that is used for being deposited at the rectangle stainless steel scraper plate of the triangular base of hollow blade at the bottom of the shell of hollow paddle type drying machine sweeps, and prevents the dead angle.Hollow blade is certain inclination angle at hollow hot box to be installed, and in operational process, plays the effect that transports mud.
Described each hollow hot box comprises sleeve annular channel and sleeve center flow channels, and is respectively equipped with vapour pipe and condensate pipe on each hollow blade; Described vapour pipe one end is arranged in the described hollow hot box and with described sleeve center flow channels and communicates, and its other end is arranged on hollow blade inside; Described condensate pipe one end is arranged in the hollow hot box and with described sleeve annular channel and communicates, and the other end is arranged on the surface of hollow blade.
Described hollow hot box is preferably two; Described hollow blade axially is staggered on described two hollow hot boxs.The housing of described hollow paddle type drying machine is provided with chuck, and described hollow blade and hollow hot box place in the described chuck; Inboard and the described hollow hot box of described chuck forms the vapor chamber of W type, and heat interchanging area is big, thereby makes steam heating more abundant.
Also be provided with wet sewage sludge feed storehouse on the hollow paddle type drying machine described in the utility model, described wet sewage sludge feed storehouse comprises two independently feeding warehouse bins, and described two feeding warehouse bin alternate runs independently.Described each feeding warehouse bin is provided with Cang Gai and feeding butterfly valve at its top and bottom respectively; When described Cang Gai opened, corresponding feeding butterfly valve cut out; When this Cang Gai closed, corresponding feeding butterfly valve was opened.
Two Cang Gai alternately open and close, when Cang Gai opens, and the charging of the mud that wets storage; When closure, this Cang Gai that closes avoids extraneous non-condensable gas to introduce by the warehouse tight seal in rubber sheet gasket and wet sewage sludge feed storehouse.Described two butterfly valves, alternately make and break finishes in the charging storage, when the storehouse lid of corresponding feeding warehouse bin is closed, its unlatching, and the oar blade type desiccation machine in time carried out feeding, wet mud enters the desiccation machine cavity by the desiccation machine entrance; Finish at feeding, corresponding Cang Gai closes when opening, and carries out charging storage next time.
Compare with the prior art scheme, the utlity model has following beneficial effect:
(1) whole latent heat of the secondary steam that produces in the recovery drying sludge process, behind secondary steam recompression raising enthalpy, recompression steam source as sludge drying, saved primary energy source, greatly reduce the energy consumption of sludge drying, the pollution of having avoided equipment such as boiler simultaneously and having brought;
(2) do not have the discharging that steam or secondary steam are imitated in the end, avoided the secondary pollution of foul smell etc., and saved the equipment such as blower fan, condensate pump of vent gas treatment;
(3) adopt the steam compensation tank, additional quantity of steam is little, plays the effect of regulation system thermal equilibrium, has realized stable, the effective operation of system;
(4) adopt water ring vacuum pump to get rid of not condensing, reduce vapor losses, and further stable system pressure;
(5) single screw rod water vapor compression machine adopts water spray lubrication, sealing, has reduced spill losses, improves compressor volume efficient;
(6) the water spray wet compression process of single screw rod water vapor compression machine is eliminated steam superheat in the compression process, and power loss is little, has improved manometric efficiency;
(7) separator of employing solid, liquid, gas three phase separation, the slag liquid of carrying secretly in the separated secondary steam, the life-span of improving compressor;
(8) water content of mud can be controlled in a big way by rotating speed and the feeding capacity of regulating hollow paddle type drying machine hollow core hot box after the mummification;
(9) system adopts compressor front and back equal percentage magnetic valve and compressor variable frequency to carry out operating mode control, and system is stable, and can carry out parameter adjustment according to different operating modes;
(10) the hollow paddle type drying machine can effectively carry out drying and other treatment to mud in it, has taken full advantage of steam thermal energy mud is heated.
Being used alternatingly of (11) two charging bins carried out the feeding of mud continuously, guarantees the steady running of system; Simultaneously bin alternately seal feeding, the non-condensable gas that makes compressor will seal very soon in the bin is taken away, guarantees that the long period do not have the sewage sludge feed of non-condensable gas or few non-condensable gas, the assurance system efficiency.
Description of drawings
Fig. 1 is the mechanical vapour recompression heat pump structural representation for sludge drying of the present utility model;
Fig. 2 is single screw rod water vapor compression machine structural representation of the present utility model;
Fig. 3 is condensation water tank structural representation of the present utility model;
Fig. 4 is hollow paddle type drier structure synoptic diagram of the present utility model;
Fig. 5 is hollow blade among Fig. 4 and the connection diagram of hollow hot box;
Fig. 6 is the structure side-looking of drying machine hollow blade and the front view among Fig. 4;
Fig. 7 is secondary steam cyclone separator arrangement synoptic diagram of the present utility model;
Fig. 8 is steam compensation tank structural representation of the present utility model.
Among the figure: the hollow hot box of 1-steam-in; The 2-belt pulley; The noncondensing gas venting port of 3-chuck; The outlet of 4-secondary steam; The 5-top cover; The 6-mud import of wetting; The hollow hot box of 7-is the condensing vent valve not; The hollow hot box condensation-water drain of 8-; 9-chuck condensation-water drain; The 10-hollow blade; The hollow hot box of 11-; The 12-steam jacket; The import of 13-jacket steam; The outlet of 14-dewatered sludge; The single screw rod water vapor compression of 15-machine; 16-atomizing spray mouth; 17-cooling system magnetic valve; The 18-water jet pump; The 19-stopping valve; The 20-drive-motor; The 21-vibroshock; 22-secondary steam separator; 23-first liquidometer; 24-slag liquid receiving tank; The 25-condensation water tank; 26-first electrical auxiliary heater; 27-pressure is regulated magnetic valve; 28-second liquidometer; The 29-drain solenoid valve; 30-second electrical auxiliary heater; 31-steam compensation tank; 32-the 3rd liquidometer; 33-steam compensation tank magnetic valve; 34-water-filling magnetic valve; 35-recompresses steam electromagnetic valve; 36-first T-valve; 37-second T-valve; The 38-under meter; 39-secondary steam magnetic valve.
Below the utility model is further described.But following example only is simple and easy example of the present utility model, does not represent or limit rights protection scope of the present utility model, and protection domain of the present utility model is as the criterion with claims.
Embodiment
For the utility model is described better, be convenient to understand the technical solution of the utility model, typical but non-limiting embodiment of the present utility model is as follows:
The utility model provides a kind of mechanical vapour recompression heat pump for sludge drying, and described system comprises hollow paddle type drying machine and vapour compressor; The secondary steam of described hollow paddle type drying machine outlet 4 is communicated with the secondary steam entrance of vapour compressor, and the recompression vapour outlet of described vapour compressor is connected in the hollow paddle type drying machine by hollow hot box steam-in 1 and jacket steam entrance 13 respectively.
Between the secondary steam entrance of the outlet 4 of the secondary steam of described hollow paddle type drying machine and vapour compressor, be provided with secondary steam separator 22, be provided with slag liquid receiving tank 24 below it.
Described vapour compressor is single screw rod water vapor compression machine 15; Described hollow paddle type drying machine connects condensation water tank 25; Described condensation water tank 25 is connected into inner screw and the secondary air-breathing make-position that meshes of star-wheel in single screw rod water vapor compression machine 15 simultaneously, is disposed with cooling system magnetic valve 17, water jet pump 18, stopping valve 19 and under meter 38 on its connecting pipeline.
Be provided with first electrical auxiliary heater 26 in the described condensation water tank 25; Its sidepiece is provided with not condensing venting port, and it is regulated magnetic valve 27 with pressure and links to each other.
The secondary steam outlet of described hollow paddle type drying machine is communicated with the secondary steam entrance of vapour compressor through secondary steam magnetic valve 39; The recompression vapour outlet of described vapour compressor is communicated with the hollow paddle type drying machine through recompression steam electromagnetic valve 35.
Be provided with steam compensation tank 31 by first T-valve 36 on the pipeline of the recompression vapour outlet connection hollow paddle type drying machine of described vapour compressor.
Described hollow paddle type drying machine comprises hollow hot box and the drying machine driving mechanism that is connected; Described hollow hot box is provided with hollow blade, and described hollow blade is skewed and is fixedly connected on the hollow hot box.The housing of described hollow paddle type drying machine is provided with chuck, and described hollow blade and hollow hot box place in the described chuck; Inboard and the described hollow hot box of described chuck forms the vapor chamber of W type.
Followingly according to the corresponding construction shown in Fig. 1～6 the mechanical vapour recompression heat pump for sludge drying described in the utility model is described:
A kind of mechanical vapour recompression heat pump for sludge drying as shown in Figure 1 mainly comprises vapor compression system, hollow paddle type drying machine, also secondary steam separator 22, steam compensation tank 31 and condensation water tank 25 can be set in this system.
As shown in Figure 2, described water vapor compresses the machine system mainly to be made up of vapour compressor, and preferred single screw rod water vapor compression machine 15 also comprises vibroshock 21, drive-motor 20 and compressor cooling water system; The body upper of single screw rod water vapor compression machine 15 is provided with the secondary steam entrance and is provided with the recompression vapour outlet in this compressor block bottom, and underpart arranges vibroshock 21; Vibroshock 21 further reduces mechanical vibration in the operational process of this list screw rod water vapor compression machine 15.Single screw rod water vapor compression machine 15 is corresponding screw rod and the secondary air-breathing closed spout hole of locating to arrange of star-wheel within it.The atomizing spray mouth 16 of described compressor cooling water system is connected with the spout hole of vapour compressor, and the pipeline at this compressor cooling water system is provided with cooling system magnetic valve 17, water jet pump 18, stopping valve 19 and the under meter 38 that links to each other successively, and the pipeline of this compressor cooling water system is connected with condensation water tank 25.
As shown in Figure 3, described condensation water tank 25 is used for collecting the water coolant behind the recompression vapor condensation in the hollow paddle type drying machine.Condensation water tank 25 tops arrange not condensing venting port, regulate magnetic valve 27 by pressure and are connected with atmosphere; These condensation water tank 25 tops arrange the water of condensation water-in, and suction culvert gos deep into water-in until condensation water tank 25 bottoms; Condensation water tank 25 bottoms arrange first electrical auxiliary heater 26; Condensation water tank 25 bottoms arrange water port by drain solenoid valve 29, can be further 29 set up and connect water of condensation waste heat recovery plate-type heat exchanger on drain solenoid valve; The inboard of condensation water tank 25 arranges second liquidometer 28.
As shown in Figure 4, described hollow paddle type drying machine is used for mud is carried out mummification.At least one hollow hot box is installed in this drying machine housing, is used for stirring mud and carries out mummification.In conjunction with actual effect, the preferred two hollow hot boxs 11 of the utility model, the hollow hot box 11 of a connection transmission rig is set in drying machine at least, belt pulley by hollow hot box 11 axle heads drives 2 drivings, and drive the hollow hot box 11 of another root and in the drying machine housing, rotate, play the effect of stirring mud.The two ends of hollow paddle type drying machine are respectively arranged with hollow hot box steam-in 1 and hollow hot box condensation-water drain 8; Hollow hot box 11 in the drying machine housing imports steam by hollow hot box steam-in 1, and discharges water of condensation by hollow hot box condensation-water drain 8.This drying machine is provided with not condensing vent valve 7 of hollow hot box at hollow hot box condensation-water drain 8 ends.This hollow paddle type drying machine housing comprises steam jacket 12, and steam jacket 12 two ends arrange jacket steam import 13 and chuck condensation-water drain 9 respectively, and at steam jacket 12 tops the noncondensing gas venting port 3 of chuck is set; The housing of this hollow paddle type drying machine also comprises top cover 5, and top cover 5 is arranged on the top of hollow paddle type drying machine, and this top cover 5 is provided with wet mud import 6 and secondary steam outlet 4; Hollow paddle type drying machine lower housing portion is provided with dewatered sludge outlet 14.
As shown in Figure 5, in the steam jacket 12 of hollow paddle type drying machine, two hollow hot box 11 axial arranged one group of staggered hollow blades 10.
As shown in Figure 6, each hollow blade 10 and hollow hot box 11 are certain angle of inclination installation.Hollow blade 10 is welded by the rectangle stainless steel scraper plate of two fan-shaped steel plates, trilateral steel plate and bottom.
As shown in Figure 7, secondary steam is by described secondary steam separator removal impurity wherein.Secondary steam separator 22 belows are provided with slag liquid receiving tank 24, and at cylindrical shell outer setting first liquidometer 23.
Described secondary steam separator 22 comprises a cylindrical shell, and it is divided into separator upper shell and separator lower shell, and the former is bigger than the latter's barrel diameter.Junction at separator upper shell and separator lower shell is provided with Stainless Steel Cloth.This secondary steam separator cylindrical shell is provided with the separator steam inlet; The axial stack shell circumference with described lower shell of separator steam inlet is tangent.
As shown in Figure 8, described steam compensation tank 31 tops are by water-filling magnetic valve 34 water sources that link to each other; Steam compensation tank 31 tops arrange not condensing venting port, communicate with atmosphere by steam compensation tank magnetic valve 33; These steam compensation tank 31 bottoms arrange second electrical auxiliary heater 30; Steam compensation tank 31 outer setting the 3rd liquidometer 32.
Described hollow paddle type drying machine secondary steam outlet connects the secondary steam separator, and this secondary steam separator links to each other with single screw rod water vapor compression machine 15 by secondary steam magnetic valve 39; The recompression steam that this list screw rod water vapor compression machine 15 is discharged also enters in this hollow paddle type drying machine by hollow hot box steam-in 1, the jacket steam entrance 13 of hollow paddle type drying machine respectively by recompression steam electromagnetic valve 35, first T-valve 36, second T-valve 37 successively.System adopts vapour compressor front and back magnetic valve and compressor variable frequency to carry out operating mode control, thereby makes system stable, and can carry out parameter adjustment according to different operating modes.
A kind of principle of work that recompresses heat pump for the mechanical vapour of sludge drying described in the utility model: wet mud enters the hollow paddle type drying machine, under the stirring of hollow blade 10, evaporation produces secondary steam, and the water content of mud progressively reduces and exports 14 sides to dewatered sludge and transports.After the separator steam inlet of the secondary steam that produces by secondary steam separator 22 enters secondary steam separator 22 cyclonic separation slag liquid, further purify by Stainless Steel Cloth, final through after the secondary steam magnetic valve 39 throttlings adjustment parameter, enter 15 compressions of single screw rod water vapor compression machine.Single screw rod water vapor compression machine 15 working process are sprayed water, and realize sealing, eliminate superheating temperature and lubricated, make water vapor experience wet compression process, produce the saturation steam after recompressing.Slag liquid focuses on after then collecting by slag liquid receiving tank 24.After saturation steam after single screw rod water vapor compression machine 15 wet compression and unnecessary water coolant are regulated by recompression steam electromagnetic valve 35, enter the hollow paddle type drying machine by hollow hot box steam-in 1 and jacket steam entrance 13 respectively, heat mud as thermal source.So finish the circulation of mechanical vapour recompression sludge drying.
Applicant's statement, the utility model illustrates detailed construction feature of the present utility model by above-described embodiment, but the utility model is not limited to above-mentioned detailed construction feature, does not mean that namely the utility model must rely on above-mentioned detailed construction feature and could implement.The person of ordinary skill in the field should understand; to any improvement of the present utility model; to the increase of the equivalence replacement of the selected parts of the utility model and accessory, the selection of concrete mode etc., all drop within protection domain of the present utility model and the open scope.
Claims (8)
1. a mechanical vapour recompression heat pump that is used for sludge drying is characterized in that described system comprises hollow paddle type drying machine and vapour compressor; The secondary steam outlet (4) of described hollow paddle type drying machine is communicated with the secondary steam entrance of vapour compressor, and the recompression vapour outlet of described vapour compressor is connected in the hollow paddle type drying machine by hollow hot box steam-in (1) and jacket steam entrance (13) respectively.
2. mechanical vapour as claimed in claim 1 recompresses heat pump, it is characterized in that, between the secondary steam entrance of the secondary steam of described hollow paddle type drying machine outlet (4) and vapour compressor, be provided with secondary steam separator (22), be provided with slag liquid receiving tank (24) below it.
3. mechanical vapour recompression heat pump as claimed in claim 1 is characterized in that, described vapour compressor is single screw rod water vapor compression machine (15); Described hollow paddle type drying machine connects condensation water tank (25); Described condensation water tank (25) is connected into inner screw and the secondary air-breathing make-position that meshes of star-wheel in single screw rod water vapor compression machine (15) simultaneously, is disposed with under meter (38), stopping valve (19), water jet pump (18) and cooling system magnetic valve (17) on its connecting pipeline.
4. mechanical vapour recompression heat pump as claimed in claim 3 is characterized in that, is provided with first electrical auxiliary heater (26) in the described condensation water tank (25); Its sidepiece is provided with not condensing venting port, and it is regulated magnetic valve (27) with pressure and links to each other.
5. mechanical vapour recompression heat pump as claimed in claim 1 is characterized in that the secondary steam outlet of described hollow paddle type drying machine is communicated with the secondary steam entrance of vapour compressor through secondary steam magnetic valve (39); The recompression vapour outlet of described vapour compressor is communicated with the hollow paddle type drying machine through recompression steam electromagnetic valve (35).
6. mechanical vapour recompression heat pump as claimed in claim 5 is characterized in that, is provided with steam compensation tank (31) by first T-valve (36) on the pipeline of the recompression vapour outlet connection hollow paddle type drying machine of described vapour compressor.
7. mechanical vapour recompression heat pump as claimed in claim 1 is characterized in that described hollow paddle type drying machine comprises hollow hot box and the drying machine driving mechanism that is connected; Described hollow hot box is provided with hollow blade, and described hollow blade is skewed and is fixedly connected on the hollow hot box.
8. mechanical vapour recompression heat pump as claimed in claim 7 is characterized in that the housing of described hollow paddle type drying machine is provided with chuck, and described hollow blade and hollow hot box place in the described chuck; Inboard and the described hollow hot box of described chuck forms the vapor chamber of W type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214942 CN203212442U (en) | 2013-04-24 | 2013-04-24 | Mechanical steam recompression heat pump system for sludge drying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214942 CN203212442U (en) | 2013-04-24 | 2013-04-24 | Mechanical steam recompression heat pump system for sludge drying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203212442U true CN203212442U (en) | 2013-09-25 |
Family
ID=49201994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320214942 Expired - Lifetime CN203212442U (en) | 2013-04-24 | 2013-04-24 | Mechanical steam recompression heat pump system for sludge drying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203212442U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084710A (en) * | 2015-09-15 | 2015-11-25 | 南京大学环境规划设计研究院有限公司 | Sludge energy-saving drying unit and sludge energy-saving drying method |
| CN105417919A (en) * | 2015-11-12 | 2016-03-23 | 上海环境卫生工程设计院有限公司 | Sludge indirect heat drying system and drying process thereof |
| CN105481219A (en) * | 2015-12-25 | 2016-04-13 | 江苏国松环境科技开发有限公司 | Solar heat supply hollow blade slurry drying device |
| CN109368976A (en) * | 2018-11-27 | 2019-02-22 | 江苏大学 | A kind of hollow blade type dryer and its drying system for sludge drying |
-
2013
- 2013-04-24 CN CN 201320214942 patent/CN203212442U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084710A (en) * | 2015-09-15 | 2015-11-25 | 南京大学环境规划设计研究院有限公司 | Sludge energy-saving drying unit and sludge energy-saving drying method |
| CN105417919A (en) * | 2015-11-12 | 2016-03-23 | 上海环境卫生工程设计院有限公司 | Sludge indirect heat drying system and drying process thereof |
| CN105481219A (en) * | 2015-12-25 | 2016-04-13 | 江苏国松环境科技开发有限公司 | Solar heat supply hollow blade slurry drying device |
| CN105481219B (en) * | 2015-12-25 | 2018-10-16 | 江苏国松环境科技开发有限公司 | Solar-heating hollow blade sludge drying device |
| CN109368976A (en) * | 2018-11-27 | 2019-02-22 | 江苏大学 | A kind of hollow blade type dryer and its drying system for sludge drying |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103708697B (en) | Mechanical Vapor Recompression Heat Pump MVR Sludge Drying System | |
| CN103408213B (en) | Energy-saving off-gas self-lazy circular sludge drying system and application method thereof | |
| CN105536276B (en) | A kind of MVR multi-stage evaporation units | |
| CN102311216B (en) | Separated thermal cycle sludge dry method and device thereof | |
| CN203212442U (en) | Mechanical steam recompression heat pump system for sludge drying | |
| CN107585996A (en) | The sludge drying system and method for a kind of high-efficient energy-saving environment friendly | |
| CN102604710A (en) | Device and method for preparing derived fuel by using city wastes | |
| CN111039536A (en) | Energy-efficient sludge heat drying dewatering device | |
| CN205300185U (en) | Thermal balance formula drying -machine | |
| CN102351396A (en) | Sludge drying equipment using waste heat of landfill gas power generation | |
| CN106854031A (en) | A kind of recycling handles method for dirty mire and its processing system | |
| CN208776558U (en) | Sludge drying and tail gas recycle concentration device | |
| CN107388252B (en) | A kind of film anhydration system and method using waste incineration residual heat of exhaust flue gas desiccation rubbish | |
| CN211595410U (en) | Sludge conveying mechanism and sludge drying equipment | |
| CN207797516U (en) | A kind of continuous vacuum heating and drying device | |
| CN110803852A (en) | Sludge conveying mechanism, sludge drying equipment and drying method | |
| CN207850110U (en) | A kind of steam condensate recovering device | |
| CN206940475U (en) | A kind of low-temperature evaporation device using plating spraying waste water | |
| CN111748393A (en) | Rotational flow flash evaporation self-heating cascade utilization device for preparing solid fuel from kitchen waste | |
| CN111392945A (en) | Industrial sewage treatment method and treatment device thereof | |
| CN207062127U (en) | A kind of high-efficiency heat pump sludge drying device | |
| CN209428386U (en) | Low temperature exhaust heat drying machine | |
| CN205730417U (en) | A kind of MVR multi-stage evaporation unit | |
| CN107746137A (en) | Magnetic tape trailer heat utilization and the municipal wastewater refuse disposal installation of roots blower | |
| CN107860007A (en) | Magnetic tape trailer heat utilization and the ultrasonic type municipal wastewater refuse disposal installation of tail gas clean-up |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130925 |
|
| CX01 | Expiry of patent term |