CN212504547U - Water source heat pump sludge drying device - Google Patents
Water source heat pump sludge drying device Download PDFInfo
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- CN212504547U CN212504547U CN202021448386.XU CN202021448386U CN212504547U CN 212504547 U CN212504547 U CN 212504547U CN 202021448386 U CN202021448386 U CN 202021448386U CN 212504547 U CN212504547 U CN 212504547U
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Abstract
The utility model discloses a water source heat pump sludge drying device, which comprises a drier, wherein the drier is provided with an air outlet and an air inlet; the air outlet is communicated with a spray tower through a moisture exhaust air pipeline; a water source heat pump unit is arranged between the dryer and the spray tower; wherein the water source heat pump unit is communicated with the air outlet through a circulating air pipe; meanwhile, a spray head is arranged in the spray tower, spray water is sprayed to wet air sent by a wet air exhaust pipeline through the spray head and is exchanged with a heat source in the wet air, then the exchanged heat source is sent to the inside of the water source heat pump unit, and circulating air for supplementing and heating the heat source in the water source heat pump unit again is sent to the drier through a circulating fan arranged at the other end of the water source heat pump unit, so that the sludge in the drier is dried; the dehumidifying air cooled by the contact heat exchange of spray water is discharged after deodorizing, dedusting and water mist removing of the functional filler in the tower, which reaches the discharge standard specified by the state.
Description
Technical Field
The utility model relates to a sludge treatment technical field specifically is a water source heat pump sludge drying device.
Background
The existing air source heat pump sludge drying technology mainly comprises a sludge dryer and an air source heat pump; the basic principle is as follows: the dryer, the heat pump evaporator and the heat pump condenser form a closed circulating air drying mode in which the dryer circularly blows out and cools (cools and dehumidifies the circularly blown out air through the heat pump evaporator and recovers heat energy), and the cooled circulating air is reheated (through the heat pump condenser) and enters the dryer to dry materials. The defects of the prior art are as follows:
1) the air source heat pump evaporator has a large volume, so that the heat pump layout is greatly influenced, and the overhaul and maintenance space is very tight.
2) Because the air source heat pump drying device is formed by combining a plurality of heat pump air source units, hot air of evaporators of the heat pump units is difficult to be distributed in each unit evaporator in a balanced manner, and the alarm shutdown caused by the overrun of the temperature and the pressure of partial units is easy to cause.
3) Because the air source heat pump evaporator cools and dehumidifies circulating air of the passing dryer, dust carried in the saturated circulating air easily pollutes the circulating air contact surface of the evaporator, and the evaporator cannot operate due to poor heat exchange in severe cases (when the circulating air carries a large amount of dust).
4) The large change of the air temperature can also cause large influence on the dehumidification and drying of the evaporator.
5) Due to the fact that sludge is dried and heated, volatile substances such as ammonia and hydrogen sulfide contained in the sludge are transferred to the air, the dryer cannot be sealed absolutely, and odor is transferred and dispersed to bring great influence to the environment under the condition that the dryer is in micro-positive pressure due to the volatile materials.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a water source heat pump sludge drying device to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a water source heat pump sludge drying device comprises a dryer, wherein the dryer is provided with an air outlet and an air inlet; the air outlet is connected with a moisture exhaust air pipeline; the other end of the moisture exhaust air pipeline is communicated with a spray tower; a plurality of interlayers are arranged inside the spray tower, and a spray head is arranged between the interlayers; the moisture exhausting air pipeline is connected below the spray tower, and the interlayer and the spray head are positioned above the connection part of the moisture exhausting air pipeline and the spray tower; the air outlet is connected and communicated with the water source heat pump unit through the arranged circulating air pipe, the water source heat pump unit is connected and communicated with the air inlet through the arranged heating air pipe, and the heating air pipe is provided with a circulating fan to convey air heated by the water source heat pump unit into the dryer; the water source heat pump unit comprises a condenser and an evaporator, wherein the evaporator recovers heat in spray water, the recovered heat after temperature and pressure are increased is exchanged through the condenser, and then the heat is sent to the inside of the dryer through a circulating fan, so that the drying of sludge inside the dryer is realized.
As the utility model discloses a preferred technical scheme: the dryer is provided with a feed inlet and a discharge outlet, wherein the feed inlet is positioned above the dryer, the discharge outlet is positioned below the dryer, and the feed inlet and the discharge outlet are natural air supplement ports for exhausting moisture and air quantity.
As the utility model discloses a preferred technical scheme: a moisture exhaust fan is further arranged between the moisture exhaust air pipeline and the spray tower, and an air volume regulating valve is arranged on an upstream pipeline of the moisture exhaust fan.
As the utility model discloses a preferred technical scheme: the water source heat pump unit is characterized in that a working medium circulating pipeline is arranged inside the water source heat pump unit, one end of the circulating pipeline is located on the condenser, one end of the circulating pipeline is located on the evaporator, and an expansion valve is arranged between the evaporator and the condenser.
As the utility model discloses a preferred technical scheme: the water outlet end of the evaporator is connected and communicated with the spray head through a spraying pipe, the water inlet end of the evaporator is connected and communicated with the water collecting tank, and a circulating water pump and a flow regulating valve are arranged on a water side upstream pipeline of the evaporator.
As the utility model discloses a preferred technical scheme: the water collecting tank is also internally provided with a heater for heating the water source in the water collecting tank and an overflow outlet for facilitating overflow of the water source in the water collecting tank.
As the utility model discloses a preferred technical scheme: the header tank with the spray column is connected the intercommunication, just the below of spray column is equipped with the drain and starts the water source filler.
As the utility model discloses a preferred technical scheme: the quantity of shower nozzle is a plurality of to the equidistance distributes between the interlayer, and the inside of interlayer still is filled has the function filler that removes flavor, dust removal, defogging nature, and will handle the exhaust emission after up to standard through the blast pipe that the top of the tower of spray column set up.
Adopt above-mentioned technical scheme, the beneficial effects of the utility model are that: a water source heat pump unit is adopted as a high-temperature heat source for circularly adding hot air and a low-temperature heat source for dehumidifying and recycling heat energy of the sludge dryer; namely, a spraying packed tower is used for introducing a part of the air outlet of the dryer into the spraying packed tower, and the spraying water of the spraying packed tower is the water cooled by a water source heat pump evaporator; the spray water is contacted with the moisture-discharging hot air of the dryer for heat exchange in the tower, the spray water is heated, the heated water enters the water source heat pump evaporator through the circulating water pump, the heat energy is recovered, and the cooled spray water is obtained, so that the drying of the sludge and the dehumidification, odor removal and dust removal of the moisture-discharging air are realized.
Drawings
FIG. 1 is a schematic view of the main structure of the present invention;
fig. 2 is a schematic view of the main structure of the water source heat pump unit of the present invention.
In the figure: 1. a dryer; 2. a feed inlet; 3. an air outlet; 4. a moisture exhaust duct; 5. a circulating air duct; 6. a water source heat pump unit; 7. an air volume adjusting valve; 8. a moisture removal fan; 9. an exhaust pipe; 10. an interlayer; 11. a spray head; 12. a shower pipe; 13. a water filling port; 14. a sewage draining outlet; 15. a heater; 16. a water collection tank; 17. an overflow outlet; 18. a water circulating pump; 19. heating the air duct; 20. a discharge port; 21. an air inlet; 22. a condenser; 23. an expansion valve; 25. an evaporator; 26. a circulating fan; 28. a circulation pipe; 29. a spray tower; 30. a flow regulating valve.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "upper surface", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1-2, the present invention provides an embodiment: a water source heat pump sludge drying device comprises a dryer 1, wherein an air outlet 3 and an air inlet 21 are arranged on the dryer 1; the air outlet 3 is connected with a moisture exhaust air pipeline 4; the other end of the moisture exhaust air pipeline 4 is communicated with a spray tower 29; a plurality of interlayers 10 are arranged inside the spray tower 29, and spray heads 11 are arranged between the interlayers 10; the moisture exhaust air pipeline 4 is connected below the spray tower 29, and the interlayer 10 and the spray head 11 are positioned above the connection part of the moisture exhaust air pipeline 4 and the spray tower 29; the air outlet 3 is connected and communicated with a water source heat pump unit 6 through a circulating air pipe 5, the water source heat pump unit 6 is connected and communicated with the air inlet 21 through a heating air pipe 19, and a circulating fan 26 is arranged on the heating air pipe 19 to send circulating hot air heated by the water source heat pump unit 6 into the dryer 1; the water source heat pump unit 6 comprises a condenser 22 and an evaporator 25, wherein the evaporator 25 recovers heat in the spray water, the recovered heat is exchanged through the condenser 22, and then the recovered heat is sent into the dryer 1 through a circulating fan 26, so that the drying of sludge in the dryer 1 is realized.
The dryer 1 is provided with a feeding hole 2 and a discharging hole 20, wherein the feeding hole 2 is located above the dryer 1, the discharging hole 20 is located below the dryer 1, and the feeding hole 2 and the discharging hole 20 are used as natural supplement air holes for discharging humid air.
A moisture exhaust fan 8 is arranged between the moisture exhaust air pipeline 4 and the spray tower 29, and an air volume regulating valve 7 is arranged on an upstream pipeline of the moisture exhaust fan 8.
A working medium circulating pipeline 28 is arranged inside the water source heat pump unit 6, wherein one end of the circulating pipeline 28 is positioned on the condenser 22, one end of the circulating pipeline 28 is positioned on the evaporator 25, and an expansion valve 23 is arranged between the evaporator 25 and the condenser 22.
The water outlet end of the evaporator 25 is connected and communicated with the spray head 11 through a spray pipe 12, the water inlet end of the evaporator 25 is connected and communicated with the water collecting tank 16, and a circulating water pump 18 and a flow regulating valve 30 are arranged on an upstream pipeline of the evaporator 25.
Wherein, a heater 15 for heating the water source inside the water collecting tank 16 and an overflow outlet 17 for facilitating the overflow of the water source inside the water collecting tank 16 are also arranged inside the water collecting tank 16.
The water collecting tank 16 is connected and communicated with the spray tower 29, and a sewage draining outlet 14 and a starting water source water filling port 13 are arranged below the spray tower 29.
The number of the spray heads 11 is a plurality, and the spray heads are equidistantly distributed among the interlayer 10, functional fillers with properties of odor removal, dust removal and mist removal are filled in the interlayer 10, and exhaust gas after the treatment reaches the standard is discharged through an exhaust pipe 9 arranged at the top of the spray tower 29.
The utility model discloses a theory of operation is: a water source heat pump unit 6 is adopted as a heat source for heating circulating air of the sludge dryer 1;
namely, a spray tower 29 can be in a vertical tower or horizontal cross spray tower plus air outlet pipeline form, and a part of the air outlet 3 of the dryer 1 is introduced into the spray tower 29 through the moisture exhaust air pipeline 4;
the spray cold water contacts with the wet and hot air sent by the moisture exhaust air pipe in the tower to exchange heat, the spray water is heated, the heated spray water enters the water collecting tank 16 and then enters the heat pump evaporator 25 through the circulating water pump 18, the heat energy in the spray water is recovered, and the cooled spray water is recycled;
meanwhile, the dehumidifying air entering the tower is cooled by spraying water and is subjected to odor removal, dust removal and water mist removal by functional fillers of the interlayer 10 in the tower, so that the dehumidifying air reaches the discharge standard of national regulation.
The dehumidifying air in the drier 1 is extracted by a dehumidifying fan 8, and the sludge drying and dehumidifying capacity under different environmental temperatures and humidities is basically unchanged by an air quantity regulating valve 7;
the circulating air of the dryer 1 is extracted by the circulating fan 26, directly enters the condenser 22 of the water source heat pump unit 6, and returns to the dryer 1 to dry sludge after being reheated, so that the air passing through the condenser 22 is unsaturated hot air, and the pollution of a condensing heat exchanger cannot be caused;
in addition, the spray water is cooled in the tower to discharge humid air and is heated, and the spray water is collected in a water collecting tank 16 and is connected with a circulating water pump 18 through a pipeline; hot water is pumped into the evaporator 25 of the water source heat pump unit 6 through the circulating water pump 18 and the flow regulating valve 30 matched with the heating (refrigerating) capacity of the heat pump unit to cool spray water and recover the low-temperature heat source of the water source heat pump unit 6.
After absorbing the heat energy of the water source through the evaporator 25, the water source is sent to the spray head 11 through the spray pipe 12, and the water source is sprayed to the dehumidifying hot air in the tower through the spray head 11.
Meanwhile, the dryer 1 can suck ambient air through the feed port 2 and the discharge port 20 to naturally supplement the air exhausted by moisture removal; meanwhile, the dryer 1 is operated under the micro negative pressure, so that the influence caused by the fact that odor is released into the environment is avoided.
The water collection tank 16 is provided with an overflow port 17 for discharging the dehumidified condensed water. A water filling port 13 for starting water is arranged at the lower part of the tower, and water is filled when the device is started; a sewage discharge outlet 14 is arranged at the bottom of the tower, so that the tower can discharge sewage regularly; and an electric heater 15 is provided on the water collecting tank 16 to turn on the auxiliary heating when the apparatus is started.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (8)
1. The utility model provides a water source heat pump sludge drying device which characterized in that: the drying machine comprises a drying machine (1), wherein an air outlet (3) and an air inlet (21) are formed in the drying machine (1); the air outlet (3) is connected with a moisture exhaust air pipeline (4) and a circulating air pipe (5);
the other end of the moisture exhaust air pipeline (4) is communicated with a spray tower (29); a plurality of interlayers (10) are arranged inside the spray tower (29), and spray heads (11) are arranged between the interlayers (10);
the moisture exhaust air pipeline (4) is connected below the spray tower (29), and the interlayer (10) and the spray head (11) are positioned above the connection part of the moisture exhaust air pipeline (4) and the spray tower (29);
the air outlet (3) is connected and communicated with a water source heat pump unit (6) through a circulating air pipe (5), the water source heat pump unit (6) is connected and communicated with the air inlet (21) through a heating air pipe (19), and a circulating fan (26) is arranged on the heating air pipe (19) to convey hot air heated by the water source heat pump unit (6) into the dryer (1);
the water source heat pump unit (6) comprises a condenser (22) and an evaporator (25); the evaporator (25) recovers heat in the spraying water, the recovered heat is exchanged through the condenser (22), and then the heat is sent into the dryer (1) through the circulating fan (26), so that the drying of sludge in the dryer (1) is realized.
2. The water source heat pump sludge drying device of claim 1, wherein: a feed inlet (2) and a discharge outlet (20) are arranged on the dryer (1); the feeding port (2) is located above the dryer (1), the discharging port (20) is located below the dryer (1), and the feeding port (2) and the discharging port (20) are natural supplementary air ports for exhausting moisture and air quantity.
3. The water source heat pump sludge drying device of claim 1 or 2, wherein: a moisture exhaust fan (8) is further arranged between the moisture exhaust air pipeline (4) and the spray tower (29), and an air volume adjusting valve (7) is arranged on an upstream pipeline of the moisture exhaust fan (8).
4. The water source heat pump sludge drying device of claim 3, wherein: a circulating pipeline (28) is arranged inside the water source heat pump unit (6); wherein, circulation pipeline (28) one end is located condenser (22) is last, and be in circulation pipeline (28) one end is located evaporator (25) is last, and be equipped with expansion valve (23) between evaporator (25) and condenser (22).
5. The water source heat pump sludge drying device of claim 4, wherein: the water outlet end of the evaporator (25) is communicated with the spray head (11) through a spray pipe (12) which is arranged, the water inlet end of the evaporator (25) is communicated with a water collecting tank (16) which is arranged, and a circulating water pump (18) and a flow regulating valve (30) are arranged on a water side upstream pipeline of the evaporator (25).
6. The water source heat pump sludge drying device of claim 5, wherein: the water collecting tank (16) is also internally provided with a heater (15) for heating the water source in the water collecting tank (16) and an overflow outlet (17) for facilitating overflow of the water source in the water collecting tank (16).
7. The water source heat pump sludge drying device of claim 6, wherein: the water collecting tank (16) is communicated with the spray tower (29), and a sewage draining outlet (14) and a water filling opening (13) are arranged below the spray tower (29).
8. The water source heat pump sludge drying device of claim 1, wherein: the number of the spray heads (11) is multiple, the spray heads are distributed among the interlayer (10) at equal intervals, functional fillers with the properties of odor removal, dust removal and demisting are filled in the interlayer (10), and the treated waste gas is discharged through an exhaust pipe (9) arranged at the top of the spray tower (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021448386.XU CN212504547U (en) | 2020-07-17 | 2020-07-17 | Water source heat pump sludge drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021448386.XU CN212504547U (en) | 2020-07-17 | 2020-07-17 | Water source heat pump sludge drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212504547U true CN212504547U (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021448386.XU Active CN212504547U (en) | 2020-07-17 | 2020-07-17 | Water source heat pump sludge drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212504547U (en) |
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2020
- 2020-07-17 CN CN202021448386.XU patent/CN212504547U/en active Active
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