CN211476637U - Energy recovery type high-temperature heat pump dryer - Google Patents
Energy recovery type high-temperature heat pump dryer Download PDFInfo
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- CN211476637U CN211476637U CN201922428995.2U CN201922428995U CN211476637U CN 211476637 U CN211476637 U CN 211476637U CN 201922428995 U CN201922428995 U CN 201922428995U CN 211476637 U CN211476637 U CN 211476637U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The utility model provides an energy recovery type high-temperature heat pump dryer, which comprises a heating device and a high-temperature dehumidifying device; the temperature rising device is provided with an evaporator, a liquid outlet of the evaporator is sequentially connected with a compressor and a condenser through a pipeline I and then connected with a liquid inlet of the evaporator to form closed circulation, an internal circulation fan is arranged on one side of the condenser, and a refrigerant is arranged in the evaporator; the high-temperature dehumidifying device is provided with a liquid storage tank, a pipeline II for connecting a circulating liquid inlet and a circulating liquid outlet of the liquid storage tank, a water pump and a first surface cooler which are arranged on the pipeline II, and a refrigerant is filled in the liquid storage tank; the evaporator is arranged in the liquid storage tank; the dryer can realize the application of high-temperature heat pump technology and heat recovery, realize rapid high-temperature heating of the drying room, realize high-temperature dehumidification at the same time, and realize green, energy-saving, environmental protection and zero pollution emission.
Description
Technical Field
The utility model relates to a high temperature air can heat, high temperature humid tropical air dehumidification and energy recuperation technical field, concretely relates to energy recuperation type high temperature heat pump drying-machine.
Background
According to statistics, the energy consumption of heat pump dehumidification is far lower than that of dehumidification drying modes such as fuel heating and electric heating, so that the heat pump dehumidification is widely applied to low-temperature drying. The drying dehumidifier which is circulated in the market at present is improved on the basis of the original industrial dehumidifier, the application range is expanded, and a plurality of defects still exist. For example, in order to reduce the temperature of an inlet entering the evaporator, an air cross-flow heat recovery heat exchanger is added for temperature reduction treatment. However, under the conditions of large and unstable ambient temperature change, large dehumidification amount change, high temperature and the like, the evaporation dew point dehumidification is difficult to realize. And the evaporation temperature is too high, which easily causes overheating protection of the compressor and reduces the service life of the compressor. In addition, when the relative humidity in the drying room exceeds a certain value, the traditional drying equipment needs to discharge high-humidity air by means of fresh air supplement, so that energy loss and waste are caused, meanwhile, the discharged waste hot gas is easy to cause air pollution, the influence of the difference of the environmental temperature on the heating efficiency of a unit is large, and the difference is large especially under the low-temperature working condition.
SUMMERY OF THE UTILITY MODEL
Problem to prior art exists, the utility model provides an energy recuperation type high temperature heat pump drying-machine has compensatied the defect of present like product, can realize utilizing high temperature heat pump technique and heat recovery to use, realize quick high temperature heating to the baking house, realize high temperature dehumidification simultaneously, fungible traditional coal fired boiler, gas boiler, drying equipment such as electrical heating, realize green, energy-conservation, the environmental protection, zero pollutant discharge, the baking house temperature can reach 80 ℃ the highest, relative humidity is below 30%, the unit operation is safe, reliable, wide application in fields such as food, crops, timber and industry casting disappearance mould coating stoving.
The technical scheme of the utility model is realized like this:
an energy recovery type high-temperature heat pump dryer comprises a heating device and a high-temperature dehumidifying device;
the temperature rising device is provided with an evaporator, a liquid outlet of the evaporator is sequentially connected with a compressor and a condenser through a pipeline I and then connected with a liquid inlet of the evaporator to form closed circulation, an internal circulation fan is arranged on one side of the condenser, and a refrigerant is arranged in the evaporator;
the high-temperature dehumidifying device is provided with a liquid storage tank, a pipeline II for connecting a circulating liquid inlet and a circulating liquid outlet of the liquid storage tank, a water pump and a first surface cooler which are arranged on the pipeline II, and a refrigerant is filled in the liquid storage tank; the evaporator is arranged in the liquid storage tank;
the evaporator absorbs heat from the secondary refrigerant in the liquid storage tank, the secondary refrigerant is compressed by the compressor and condensed by the condenser to release heat, and the air in the drying room is heated and heated; the secondary refrigerant in the liquid storage box is conveyed to a first surface cooler through the water pump to circulate, the first surface cooler absorbs high-temperature humid hot air in the drying room to reach the air dew point temperature, and after moisture in the air is separated out, the high-temperature humid hot air is heated by the condenser to become dry air which is sent to the drying room to continue to circulate.
In the dryer, a liquid supplementing ball float valve is arranged in the liquid storage tank; when the liquid supplementing ball float valve detects that the liquid level in the liquid storage tank is lower than a set value, the liquid storage tank is supplemented with secondary refrigerant; when the liquid supplementing ball float valve detects that the liquid level in the liquid storage tank is higher than a set value, the liquid storage tank discharges secondary refrigerant.
The dryer is also provided with a second surface air cooler which is arranged outdoors and communicated with the first surface air cooler; a second electric valve is arranged on a pipeline II which is communicated with the outlet of the first surface cooler and the inlet of the second surface cooler, and a first electric valve is arranged on a pipeline II which is communicated with the outlet of the first surface cooler and the liquid storage tank; and when the temperature of the returned liquid at the outlet of the first surface cooler is more than or equal to 5 ℃ of the ambient temperature, closing the first electric valve, opening the second electric valve, enabling the secondary refrigerant coming out of the first surface cooler to enter the second surface cooler, enabling the secondary refrigerant to absorb external cold energy in the second surface cooler, reducing the temperature of the secondary refrigerant, and then returning the secondary refrigerant to the liquid storage tank through a pipeline II.
The drying-machine, second surface cooler one side still is equipped with the outside fan, the secondary refrigerant gets out from first surface cooler and gets into the second surface cooler in, start the outside fan, improves the cooling efficiency of secondary refrigerant in the second surface cooler.
The dryer, the liquid outlet of evaporimeter connects gradually vapour and liquid separator, compressor, condenser, reservoir, drier-filter and thermal expansion valve through pipeline I, later connects the inlet of evaporimeter, forms closed cycle.
In the dryer, the refrigerant is R134 a.
In the dryer, the secondary refrigerant is water or glycol.
The utility model has the advantages that:
1. the utility model discloses energy recuperation type high temperature heat pump drying-machine is a closed circulation system of high temperature drying dehumidification, and heating up, dry dehumidification all once realize in the baking house, do not discharge poisonous, harmful and high fever, high humid exhaust gas outside the baking house, need not introduce new trend heating efficiency simultaneously and also not receive external environment influence, energy saving and emission reduction.
2. The surface cooler and the outer fan are arranged outside the drying room, so that the absorption of external cold energy is realized, the return water temperature is reduced, the evaporation cooling efficiency of the unit is improved, and the operation energy consumption is reduced.
3. The utility model discloses but energy recuperation type high temperature heat pump drying-machine addition operation protection facility and detection control device to ensure unit safety, reliable operation under the high temperature operating mode condition.
4. The utility model discloses energy recuperation type high temperature heat pump drying-machine still can add intelligent control system, adds and falls electric memory function, human-computer interface demonstration, multiple intelligent control mode etc. satisfies different material stoving modes, convenient operation to realize intelligent management.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic diagram of the energy recovery type high-temperature heat pump dryer of the present invention. Solid arrows in the drawings indicate: representing the direction of flow of the refrigerant; the dashed arrows indicate: representing the direction of coolant flow.
The attached drawings are as follows: the system comprises a water pump 1, a liquid storage tank 2, a liquid discharging valve 3, an evaporator 4, a thermal expansion valve 5, a compressor 6, a gas-liquid separator 7, a drying filter 8, a liquid storage tank 9, an internal circulation fan 10, a condenser 11, a first surface air cooler 12, a second electric valve 13, a first electric valve 14, a liquid supplementing ball float valve 15, a pipeline II, a pipeline 17, a second surface air cooler 18, an external side fan 19, a water discharging valve 19, a pipeline I, a pipeline 21, an unloading valve 22 and an unloading capillary tube 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in 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 in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, an energy recovery type high temperature heat pump dryer includes a temperature raising device and a high temperature dehumidifying device which have interaction and are mutually associated; the heating device has evaporator 4, compressor 6, condenser 11 are connected gradually through pipeline I20 to the liquid outlet of evaporator 4, later connect the inlet of evaporator 4, form closed cycle, preferably, gas-liquid separator 7, compressor 6, condenser 11, reservoir 9, dry filter 8 and thermal expansion valve 5 are connected gradually through pipeline I20 to the liquid outlet of evaporator 4, later connect the inlet of evaporator 4, form closed cycle. An internal circulating fan 10 is arranged on one side of the condenser 11, and a refrigerant is arranged in the evaporator 4; the refrigerant is R134 a.
The high-temperature dehumidifying device is provided with a liquid storage tank 2, a pipeline II 16 for connecting a circulating liquid inlet and a circulating liquid outlet of the liquid storage tank 2, a water pump 1 and a first surface air cooler 12 which are arranged on the pipeline II 16, wherein a coolant is filled in the liquid storage tank 2, and the coolant is water or ethylene glycol; the evaporator 4 is arranged in the liquid storage tank 2;
the evaporator 4 absorbs heat from the secondary refrigerant in the liquid storage tank 2, is compressed by the compressor 6, is condensed by the condenser 11 to emit heat, and heats the air in the drying room; the secondary refrigerant in the liquid storage tank 2 is conveyed to the first surface air cooler 12 through the water pump 1 for circulation, the first surface air cooler 12 absorbs high-temperature damp and hot air in the drying room to reach the air dew point temperature, and after moisture in the air is separated out, the high-temperature damp and hot air is heated by the condenser 11 to become dry air which is sent to the drying room for continuous circulation.
A liquid supplementing ball float valve 15 is arranged in the liquid storage tank 2; when the liquid supplementing ball float valve 15 detects that the liquid level of the secondary refrigerant in the liquid storage tank 2 is lower than a set value, the liquid storage tank 2 supplements the secondary refrigerant; when the liquid supplementing ball float valve 15 detects that the liquid level in the liquid storage tank is higher than a set value, the liquid storage tank 2 discharges secondary refrigerant through the liquid discharging valve 3.
The cold energy recovery assembly is arranged outdoors; the cold energy recovery assembly is provided with a second surface air cooler 17 communicated with the first surface air cooler 12; a second electric valve 13 is arranged on a pipeline II 16 communicated with the outlet of the first surface air cooler 12 and the inlet of the second surface air cooler 17, and a first electric valve 14 is arranged on the pipeline II 16 communicated with the outlet of the first surface air cooler 12 and the liquid storage tank 2; when the temperature of the returned liquid at the outlet of the first surface cooler 12 is more than or equal to 5 ℃ of the ambient temperature, the first electric valve 14 is closed, the second electric valve 13 is opened, the secondary refrigerant coming out of the first surface cooler 12 enters the second surface cooler 17, the secondary refrigerant absorbs external cold energy in the second surface cooler 17, the temperature of the secondary refrigerant is reduced, and then the secondary refrigerant returns to the liquid storage tank through a pipeline II 16, and the second surface cooler 17 is provided with a waterproof valve 19, so that the condensed water in the second surface cooler 17 can be conveniently discharged. Preferably, an outer side fan 18 is further arranged on one side of the second surface cooler 17, the secondary refrigerant enters the second surface cooler 17 from the first surface cooler 12, and the outer side fan 18 is started to improve the cooling efficiency of the secondary refrigerant in the second surface cooler 17.
The utility model discloses energy recuperation type high temperature heat pump drying-machine contains compressor 6, liquid reserve tank 2, evaporimeter 4, condenser 11, first surface cooler 12, internal circulation fan 10, water pump 1, off-load valve 21, 5 motorised valves of expansion valve etc. with the main unit part and installs in the baking house, and the part is retrieved to cold energy second surface cooler 17 and outside fan 18 and installs outside the baking house, indoor, outdoor mode through the tube coupling. The first surface air cooler 12 and the second surface air cooler 17 are fin type surface air coolers.
When the refrigerating system is used, the heat of the secondary refrigerant in the liquid storage tank 2 is absorbed through the evaporation of the working medium by utilizing the reverse Carnot principle, high-temperature and high-pressure refrigerant steam is formed after passing through the compressor 6, is physically absorbed and exhausted in the process of passing through the condenser 11 and the internal circulation fan 10, is cooled into high-pressure liquid, enters the evaporator 4 in the liquid storage tank 2 after being throttled and depressurized by the expansion valve 5, is evaporated again, and is repeatedly circulated. Meanwhile, the secondary refrigerant which is evaporated by the working medium and absorbs heat in the liquid storage tank 2 is circularly discharged into the first surface air cooler 12 through the water pump 1 to absorb heat and reduce temperature, and when the temperature of moisture in the air reaches a dew point, the moisture in the air is separated out, so that the aim of dehumidification is fulfilled. At this time, the dried air flow is heated by the condenser 11 and discharged into the drying room, so that high-temperature heating and drying dehumidification can be realized at the same time.
Therefore, the utility model discloses an energy recuperation type high temperature heat pump drying-machine is a closed circulation system of high temperature drying dehumidification, intensification heating, dry dehumidification all once realize in the baking house, do not discharge poisonous, harmful and high fever, high humid exhaust gas outside the baking house, need not introduce new trend heating efficiency simultaneously and also not receive external environment influence, energy saving and emission reduction.
In the using process, the difference value between the liquid returning temperature of the first surface air cooler 12 inside and the ambient temperature is monitored, when the liquid returning temperature of the first surface air cooler 12 is larger than or equal to the ambient temperature of 5 ℃, the second electric valve 13 is opened to communicate the liquid returning of the first surface air cooler 12 with the liquid inlet of the second surface air cooler 17 outside, the first electric valve 14 is closed at the same time, the outer side fan 18 is started to absorb the external cold energy, the liquid returning temperature of the secondary refrigerant is reduced, the evaporative cooling efficiency of the unit is improved, and the operation energy consumption is reduced.
In order to improve equipment's security, the utility model discloses an energy recuperation type high temperature heat pump drying-machine can add operation protection facility and detection controlling means, set up compressor exhaust temperature detection controlling means in the unit, high pressure, low pressure protection device and unit operating pressure monitoring, high pressure off-load and decompression hydrojet protection device, water tank temperature monitoring, return water temperature monitoring control in the baking house, temperature in the baking house, humidity monitoring and controlling means, outdoor temperature, humidity monitoring devices etc, it all with microcomputer control ware electric connection to detect controlling means above, ensure through above-mentioned detection controlling means that the unit is safe under high temperature operating mode condition, reliable operation.
The utility model discloses an energy recuperation type high temperature heat pump drying-machine can also add intelligent control system, and intelligent regulation baking house temperature, humidity, the temperature is set for to the intelligence, intelligent control dehumidification function and aquatic energy recuperation and energy storage control, opening and closing of intelligent control water pump. The function of external cold energy recovery is intelligently started by detecting the difference between the return water temperature of the indoor surface cooler 12 and the outdoor temperature. The unloading and liquid spraying cooling device of the refrigeration system is intelligently opened and closed by detecting the exhaust temperature and the exhaust pressure of the compressor, so that the safe and reliable operation of the compressor and the unit is realized. The intelligent material drying system can also be added with a power-down memory function, a human-computer interface display mode and a plurality of intelligent control modes, meets different material drying modes, is convenient to operate and achieves intelligent management.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second", "element i", "element ii" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features indicated. Thus, features defined as "first", "second", "element i", "element ii" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An energy recovery type high-temperature heat pump dryer is characterized by comprising a heating device and a high-temperature dehumidifying device;
the temperature rising device is provided with an evaporator, a liquid outlet of the evaporator is sequentially connected with a compressor and a condenser through a pipeline I and then connected with a liquid inlet of the evaporator to form closed circulation, an internal circulation fan is arranged on one side of the condenser, and a refrigerant is arranged in the evaporator;
the high-temperature dehumidifying device is provided with a liquid storage tank, a pipeline II for connecting a circulating liquid inlet and a circulating liquid outlet of the liquid storage tank, a water pump and a first surface cooler which are arranged on the pipeline II, and a refrigerant is filled in the liquid storage tank; the evaporator is arranged in the liquid storage tank;
the evaporator absorbs heat from the secondary refrigerant in the liquid storage tank, the secondary refrigerant is compressed by the compressor and condensed by the condenser to release heat, and the air in the drying room is heated and heated; the secondary refrigerant in the liquid storage box is conveyed to a first surface cooler through the water pump to circulate, the first surface cooler absorbs high-temperature humid hot air in the drying room to reach the air dew point temperature, and after moisture in the air is separated out, the high-temperature humid hot air is heated by the condenser to become dry air which is sent to the drying room to continue to circulate.
2. The dryer of claim 1, wherein a liquid supplementing float valve is arranged in the liquid storage tank; when the liquid supplementing ball float valve detects that the liquid level in the liquid storage tank is lower than a set value, the liquid storage tank is supplemented with secondary refrigerant; when the liquid supplementing ball float valve detects that the liquid level in the liquid storage tank is higher than a set value, the liquid storage tank discharges secondary refrigerant.
3. The dryer of claim 1, further comprising a second surface cooler disposed outdoors and communicating with the first surface cooler; a second electric valve is arranged on a pipeline II which is communicated with the outlet of the first surface cooler and the inlet of the second surface cooler, and a first electric valve is arranged on a pipeline II which is communicated with the outlet of the first surface cooler and the liquid storage tank; and when the temperature of the returned liquid at the outlet of the first surface cooler is more than or equal to 5 ℃ of the ambient temperature, closing the first electric valve, opening the second electric valve, enabling the secondary refrigerant coming out of the first surface cooler to enter the second surface cooler, enabling the secondary refrigerant to absorb external cold energy in the second surface cooler, reducing the temperature of the secondary refrigerant, and then returning the secondary refrigerant to the liquid storage tank through a pipeline II.
4. The dryer of claim 3, wherein an outside fan is further disposed on one side of the second surface cooler, and the secondary refrigerant flows out of the first surface cooler into the second surface cooler, and the outside fan is activated to improve the cooling efficiency of the secondary refrigerant in the second surface cooler.
5. The dryer of claim 1, wherein the liquid outlet of the evaporator is connected to the gas-liquid separator, the compressor, the condenser, the reservoir, the filter drier and the thermostatic expansion valve in sequence through a pipeline I, and then connected to the liquid inlet of the evaporator to form a closed cycle.
6. The dryer of claim 1, wherein said refrigerant is R134 a.
7. The dryer of claim 1 wherein said coolant is water or glycol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922428995.2U CN211476637U (en) | 2019-12-26 | 2019-12-26 | Energy recovery type high-temperature heat pump dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922428995.2U CN211476637U (en) | 2019-12-26 | 2019-12-26 | Energy recovery type high-temperature heat pump dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211476637U true CN211476637U (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922428995.2U Expired - Fee Related CN211476637U (en) | 2019-12-26 | 2019-12-26 | Energy recovery type high-temperature heat pump dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211476637U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623993A (en) * | 2021-07-21 | 2021-11-09 | 广东申菱环境系统股份有限公司 | Cold-carrying circulating heat recovery high-temperature drying device and control method |
| CN113739558A (en) * | 2021-07-22 | 2021-12-03 | 广东申菱环境系统股份有限公司 | Heat pump unit and control method thereof |
-
2019
- 2019-12-26 CN CN201922428995.2U patent/CN211476637U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623993A (en) * | 2021-07-21 | 2021-11-09 | 广东申菱环境系统股份有限公司 | Cold-carrying circulating heat recovery high-temperature drying device and control method |
| CN113739558A (en) * | 2021-07-22 | 2021-12-03 | 广东申菱环境系统股份有限公司 | Heat pump unit and control method thereof |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200911 Termination date: 20211226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |