CN211688786U - Heat pump sludge dryer with water-cooled heat exchanger - Google Patents
Heat pump sludge dryer with water-cooled heat exchanger Download PDFInfo
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- CN211688786U CN211688786U CN201922341402.9U CN201922341402U CN211688786U CN 211688786 U CN211688786 U CN 211688786U CN 201922341402 U CN201922341402 U CN 201922341402U CN 211688786 U CN211688786 U CN 211688786U
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Abstract
The utility model discloses a take water cooled heat exchanger's heat pump sludge drying machine, which comprises a housing, inside drying source room and the sludge drying room of being provided with of casing. The utility model discloses in, through plate heat exchanger and water-cooled heat exchanger heat transfer, plate heat exchanger is as heat pump system's evaporimeter, the refrigerating output of production provides cold volume through the water cycle to water-cooled heat exchanger, the humid air that comes from the sludge drying room passes through water-cooled heat exchanger cooling dehumidification, rethread condenser heat transfer intensifies and forms the dry hot air, the corrosive gas that produces among the drying process cools down the condensation and becomes the comdenstion water and get into the water drainage tank and flow out in water-cooled heat exchanger, this kind of corrosive comdenstion water only has the influence of corruption to water-cooled heat exchanger, and can not influence heat pump heating system, compare with conventional heat pump desiccator evaporimeter and be difficult for receiving the corruption, produce the corruption back when water-cooled heat exchanger, replace water-cooled heat exchanger alone and need not change whole heat pump.
Description
Technical Field
The utility model relates to a sludge drying machine technical field, concretely relates to take water-cooled heat exchanger's heat pump sludge drying machine.
Background
The conventional high-temperature sludge heat pump drying unit mainly comprises a finned evaporator, a compressor, a finned condenser and an expansion valve, and is characterized in that a circulating working medium is used for continuously completing a thermodynamic cycle process of evaporation (absorbing heat in wet air discharged by sludge drying) → compression → condensation (discharging heat in an indoor drying room to heat sludge drying circulating air) → throttling → re-evaporation, so that heat in the wet and hot air generated in the sludge drying process is transferred to the condenser in a drying chamber through a heat pump system to heat circulating air, and a refrigerant circularly flows in the system under the action of the compressor. The heat pump dryer is applied to sludge drying, and the problem of corrosion of an evaporator part of a heat pump system is particularly easy to occur. Most chemical industry sludge ingredients such as pharmaceutical factory, tannery, metallurgical ore dressing are comparatively complicated, all have strong acid strong basicity, and corrosivity is stronger, can produce the condensate water that has corrosivity after the cooling of heat pump evaporator from sludge drying room exhaust humid air, and the condensate water can lead to the fact the corruption to the evaporimeter, influences and destroys important parts such as compressor even. Once corrosion occurs, the entire heat pump drying system needs to be replaced, which is costly.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical problems, the utility model aims to provide a heat pump sludge dryer with a water-cooling heat exchanger, the evaporator (plate heat exchanger) and the water-cooled heat exchanger are circularly exchanged heat through the circulating water pump to provide cold energy, meanwhile, the corrosive wet air discharged from the interior of the sludge drying chamber is cooled and dehumidified only by the water-cooling heat exchanger, the dehumidified circulating gas is heated by the condenser to further reduce the relative humidity of the circulating gas, the corrosive gas and liquid generated in the drying process only influence the water-cooling heat exchanger and cannot influence the compressor, the plate-type evaporator, the throttling device (expansion valve and the like), the condenser and other parts of the heat pump system, compared with the conventional heat pump dryer evaporator, the heat pump dryer evaporator is not easy to corrode, the water-cooled heat exchanger does not need to be replaced after being corroded, and the high cost of the whole replacement of the heat pump system of the dryer can be avoided by replacing the water-cooled heat exchanger alone.
The purpose of the utility model can be realized by the following technical scheme:
a heat pump sludge dryer with a water-cooling heat exchanger comprises a machine shell, wherein a drying source chamber and a sludge drying chamber are arranged in the machine shell, the top and the bottom of the sludge drying chamber are respectively provided with a feed inlet and a discharge outlet which are communicated with the machine shell, the top of the sludge drying chamber is provided with an exhaust port, and the bottom of the sludge drying chamber is provided with an air inlet;
the compressor and the plate heat exchanger are fixed outside the shell, the plate heat exchanger is provided with a first upper port, a second upper port, a first lower port and a second lower port, wherein the first upper port is correspondingly communicated with the first lower port, the second upper port is correspondingly communicated with the second lower port, the top end and the bottom end of the drying source chamber are respectively communicated with an exhaust port and an air inlet through pipelines, a water-cooling heat exchanger and a condenser are sequentially fixed in the drying source chamber from top to bottom, the output end of the water-cooled heat exchanger is communicated with the first upper port of the plate heat exchanger, the first lower port of the plate heat exchanger is communicated with the input end of the water-cooled heat exchanger through a circulating water pump, the second upper port of the plate heat exchanger is communicated with an air return pipe of a compressor, an exhaust pipe of the compressor is communicated with the input end of a condenser, and the output end of the condenser is communicated with the second lower port of the plate heat exchanger through a pipeline series expansion valve.
Further, the feeding port and the discharging port are arranged on the same side, so that pollution can be caused only to one side of the heat pump sludge dryer, and the cleanness of the heat pump sludge dryer can be kept.
The sludge drying chamber is characterized in that two groups of sludge conveying belts which are distributed up and down are fixed inside the sludge drying chamber, the length of the sludge conveying belt on the upper layer in the two groups of sludge conveying belts is smaller than that of the sludge conveying belt on the lower layer, the excess part of the sludge conveying belt on the lower layer is positioned on the side far away from the discharge port, and therefore the sludge conveying belt on the upper layer can convey sludge to the sludge conveying belt on the lower layer.
The sludge conveying direction of the sludge conveying belt on the upper layer in the two groups of sludge conveying belts is far away from the side where the discharge port is located, and the sludge conveying direction of the sludge conveying belt on the lower layer faces the position where the discharge port is located, so that the sludge conveying belt on the upper layer can convey the sludge conveying belt on the lower layer.
Further lie in, the inside of drying source room is fixed with water drainage tank between water-cooled heat exchanger and condenser, water drainage tank's bottom intercommunication has the drain pipe, is favorable to collecting the comdenstion water that the water-cooled heat exchanger dehumidification produced through setting up water drainage tank and intercommunication drain pipe, avoids the comdenstion water of corrosivity to lead to the fact the corruption to the part.
The utility model has the advantages that:
the plate heat exchanger is separated from the water-cooled heat exchanger, the plate heat exchanger is used as an evaporator of a heat pump system, the heat exchange efficiency is higher than that of a conventional fin evaporator, the plate heat exchanger exchanges heat with the water-cooled heat exchanger through the circulating water pump to provide cold energy, meanwhile, the wet air generated in the sludge drying process is cooled and dehumidified only by the water-cooling heat exchanger, and the dehumidified dry and cold air is heated by the condenser, the relative humidity is further reduced, dry air passes through the condenser to form dry hot air which enters the sludge drying chamber, corrosive gas and liquid generated in the sludge drying process cannot influence a heat pump heating system (a compressor, a condenser, a throttling device (an expansion valve, and the like), an evaporator and the like), compared with the evaporator of the conventional heat pump sludge dryer, the evaporator is not easy to corrode, the whole machine does not need to be replaced, when the water-cooling heat exchanger is corroded, the water-cooling heat exchanger is replaced independently, so that the high cost of the whole replacement of the dryer can be avoided.
Drawings
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of the whole structure of the heat pump sludge dryer of the present invention.
In the figure: 1. a compressor; 2. a condenser; 3. an expansion valve; 4. a plate heat exchanger; 5. a water-cooled heat exchanger; 6. a water pump; 7. a water discharge tank; 71. a drain pipe; 8. a sludge drying chamber; 81. a feeding port; 82. a discharge port; 83. an air inlet; 84. an exhaust port; 9. a sludge conveyor belt; 10. a housing; 11. and drying the source chamber.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, a heat pump sludge dryer with a water-cooling heat exchanger includes a casing 10, a drying source chamber 11 and a sludge drying chamber 8 are disposed inside the casing 10, a feeding port 81 and a discharging port 82 communicated with the casing 10 are respectively disposed at the top and the bottom of the sludge drying chamber 8, an exhaust port 84 is disposed at the top of the sludge drying chamber 8, and an air inlet 83 is disposed at the bottom of the sludge drying chamber 8;
the compressor 1 and the plate heat exchanger 4 are fixed outside the casing 10, the plate heat exchanger 4 is provided with a first upper port, a second upper port, a first lower port and a second lower port, the first upper port and the first lower port are correspondingly communicated, the second upper port and the second lower port are correspondingly communicated, the top end and the bottom end of the drying source chamber 11 are respectively communicated with the exhaust port 84 and the air inlet 83 through pipelines, a water-cooling heat exchanger 5 and a condenser 2 are sequentially fixed in the drying source chamber 11 from top to bottom, the output end of the water-cooling heat exchanger 5 is communicated with the first upper port of the plate-type heat exchanger 4, the first lower port of the plate-type heat exchanger 4 is communicated with the input end of the water-cooling heat exchanger 5 through a circulating water pump 6, the second upper port of the plate-type heat exchanger 4 is communicated with an air return pipe of the compressor 1, an exhaust pipe of the compressor 1 is communicated with the input end of the condenser 2, and the output end of the condenser 2 is communicated with the.
Dog-house 81 and discharge gate 82 are in same one side, can only cause the pollution to heat pump sludge drying machine unilateral like this, be favorable to keeping heat pump sludge drying machine's clean and tidy nature, sludge drying chamber 8's inside is fixed with two sets of sludge conveyor belts 9 that distribute from top to bottom, the sludge conveyor belt 9 length that is in the upper strata in two sets of sludge conveyor belts 9 is less than the sludge conveyor belt 9 that is in the lower floor, wherein, the sludge conveyor belt 9 that is in the lower floor surpasss the part and is located and keeps away from discharge gate 82 place side, upper sludge conveyor belt 9 can carry mud to lower floor's sludge conveyor belt 9 like this.
9 mud direction of transfer of the mud conveyer belt 9 that are in the upper strata in two sets of mud conveyer belts 9 are for keeping away from discharge gate 82 place side, 9 mud direction of transfer of the mud conveyer belt that are in the lower floor is towards discharge gate 82 position department, the mud conveyer belt 9 that can be in the upper strata like this is carried to the mud conveyer belt 9 of lower floor, the inside of drying source room 11 is fixed with water drainage tank 7 between water-cooled heat exchanger 5 and condenser 2, water drainage tank 7's bottom intercommunication has drain pipe 71, be favorable to collecting the comdenstion water that the dehumidification of water-cooled heat exchanger 5 produced through setting up water drainage tank 7 and intercommunication drain pipe 71, avoid corrosive comdenstion water to cause the corruption to the.
The working principle is as follows: when in use, the gas refrigerant from an evaporator (plate heat exchanger) is compressed by the compressor 1, the compressed high-temperature and high-pressure gas refrigerant forms liquid refrigerant after heat exchange by the condenser, the liquid refrigerant enters the plate heat exchanger 4 after passing through a throttling device (expansion valve and the like) to be evaporated, the heat of circulating water is absorbed when the circulating working medium is evaporated in the plate heat exchanger, the circulating water pump 6 maintains the heat exchange of the circulating water between the evaporator and the water-cooled heat exchanger 5 to provide cold energy for the water-cooled heat exchanger 5, a partition board is arranged between the evaporator and the water-cooled heat exchanger to separate and prevent corrosive gas and liquid from corroding parts such as the plate heat exchanger and the compressor, the temperature of the humid air can be reduced and the moisture content can be reduced when the humid air passes through the water-cooled heat exchanger 5, a drainage tank 7 is arranged below the water-cooled heat exchanger 5 and used for discharging, and dry hot air is introduced into the sludge drying chamber 8 by a fan, the dry hot air dries and dehumidifies sludge in the drying chamber, the dry hot air is converted into wet air after moisture absorption and then returns to the drying source chamber 11 to form a reciprocating cycle of wet air and dry hot air.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only, and various modifications, additions and substitutions as described for the specific embodiments described herein may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.
Claims (5)
1. The heat pump sludge dryer with the water-cooling heat exchanger is characterized by comprising a machine shell (10), wherein a drying source chamber (11) and a sludge drying chamber (8) are arranged inside the machine shell (10), the top and the bottom of the sludge drying chamber (8) are respectively provided with a feeding port (81) and a discharging port (82) which are communicated with the machine shell (10), the top of the sludge drying chamber (8) is provided with an exhaust port (84), and the bottom of the sludge drying chamber (8) is provided with an air inlet (83);
a compressor (1) and a plate heat exchanger (4) are fixed outside the casing (10), the plate heat exchanger (4) is provided with a first upper port, a second upper port, a first lower port and a second lower port, wherein the first upper port and the first lower port are correspondingly communicated, the second upper port and the second lower port are correspondingly communicated, the top end and the bottom end of the drying source chamber (11) are respectively communicated with an exhaust port (84) and an air inlet (83) through pipelines, a water-cooling heat exchanger (5) and a condenser (2) are sequentially fixed in the drying source chamber (11) from top to bottom, the output end of the water-cooling heat exchanger (5) is communicated with the first upper port of the plate heat exchanger (4), the first lower port of the plate heat exchanger (4) is communicated with the input end of the water-cooling heat exchanger (5) through a circulating water pump (6), the second upper port of the plate heat exchanger (4) is communicated with an air return pipe of the compressor (1), the exhaust pipe of the compressor (1) is communicated with the input end of the condenser (2), and the output end of the condenser (2) is communicated with the second lower port of the plate type heat exchanger (4) through a pipeline series expansion valve (3).
2. The heat pump sludge drying machine with the water-cooled heat exchanger as claimed in claim 1, wherein the feeding port (81) and the discharging port (82) are on the same side.
3. The heat pump sludge drying machine with the water-cooling heat exchanger according to claim 2, wherein two groups of sludge conveying belts (9) are fixed inside the sludge drying chamber (8) and distributed up and down, the length of the sludge conveying belt (9) on the upper layer in the two groups of sludge conveying belts (9) is smaller than that of the sludge conveying belt (9) on the lower layer, and the excess part of the sludge conveying belt (9) on the lower layer is located on the side far away from the discharge port (82).
4. The heat pump sludge drying machine with the water-cooling heat exchanger is characterized in that the sludge conveying direction of the sludge conveying belt (9) on the upper layer of the two groups of sludge conveying belts (9) is far away from the discharge port (82), and the conveying direction of the sludge conveying belt (9) on the lower layer faces to the position of the discharge port (82).
5. The heat pump sludge dryer with the water-cooled heat exchanger as claimed in claim 1, wherein a drainage tank (7) is fixed inside the drying source chamber (11) and below the water-cooled heat exchanger (5), and a drainage pipe (71) is communicated with the bottom of the drainage tank (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922341402.9U CN211688786U (en) | 2019-12-24 | 2019-12-24 | Heat pump sludge dryer with water-cooled heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922341402.9U CN211688786U (en) | 2019-12-24 | 2019-12-24 | Heat pump sludge dryer with water-cooled heat exchanger |
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| CN211688786U true CN211688786U (en) | 2020-10-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072253A (en) * | 2019-12-24 | 2020-04-28 | 龙川纽恩泰新能源科技发展有限公司 | Heat pump sludge dryer with water-cooled heat exchanger |
| CN116750942A (en) * | 2023-08-07 | 2023-09-15 | 河北工程大学 | Low-temperature sludge (coal slime) drying process |
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2019
- 2019-12-24 CN CN201922341402.9U patent/CN211688786U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072253A (en) * | 2019-12-24 | 2020-04-28 | 龙川纽恩泰新能源科技发展有限公司 | Heat pump sludge dryer with water-cooled heat exchanger |
| CN116750942A (en) * | 2023-08-07 | 2023-09-15 | 河北工程大学 | Low-temperature sludge (coal slime) drying process |
| CN116750942B (en) * | 2023-08-07 | 2024-03-08 | 河北工程大学 | Low-temperature sludge (coal slime) drying process |
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