CN115382364A - Intelligent freezing type compressed air dryer and use method - Google Patents
Intelligent freezing type compressed air dryer and use method Download PDFInfo
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- CN115382364A CN115382364A CN202211352927.2A CN202211352927A CN115382364A CN 115382364 A CN115382364 A CN 115382364A CN 202211352927 A CN202211352927 A CN 202211352927A CN 115382364 A CN115382364 A CN 115382364A
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Abstract
The invention provides an intelligent freezing type compressed air dryer and a using method thereof, wherein the intelligent freezing type compressed air dryer comprises an equipment inlet, a heat exchanger, a cyclone separator and an equipment outlet which are sequentially connected, a refrigerating system is connected to one side of the heat exchanger so that compressed air enters from the equipment inlet, condensed water and low-temperature drying compressed air are obtained after heat exchange and temperature reduction of the heat exchanger and gas-liquid separation of the cyclone separator are sequentially carried out, and the low-temperature drying compressed air is discharged from the equipment outlet after returning to the heat exchanger for heat exchange, and the method comprises the following steps: step one, when the heat exchanger and the cyclone separator operate, condensed water in the cyclone separator is discharged into a condensed fluid waste oil collecting box through an electronic drainer; secondly, respectively acquiring the enthalpy of the wet air at the inlet and the outlet of the equipment; and step three, calculating the system operation efficiency value of the intelligent refrigeration type compressed air dryer through the enthalpy of the equipment inlet wet air and the enthalpy of the equipment outlet wet air.
Description
Technical Field
The invention relates to the field of compressed air equipment, in particular to an intelligent freezing type compressed air dryer and a using method thereof.
Background
The compressed air dryers are generally classified into a freezing type compressed air dryer and an adsorption type compressed air dryer, the freezing type compressed air dryer separates moisture in humid air from the air by condensation by using the principle of reducing the air temperature, and obtains relatively dry air, while the adsorption type compressed air dryer obtains the dry air by using the principle of pressure swing adsorption, and when the humid air passes through an adsorbent, the moisture is adsorbed by the adsorbent.
At present, condensate of all types of refrigeration type compressed air dryers generally have a certain amount of oil stains, and cannot be directly discharged, so that if the condensate is directly discharged, the environment can be polluted.
In addition, the existing refrigeration type compressed air dryer does not have an operation efficiency detection means of the whole equipment, so that a user cannot effectively and intuitively know the operation efficiency of the refrigeration type compressed air dryer, whether operation failure occurs or not and the like.
Disclosure of Invention
The invention aims to provide an intelligent freezing type compressed air dryer which can collect condensed water, separate oil stain and detect the operating efficiency value of a system and a using method thereof.
In order to solve the technical problems, the invention provides a use method of an intelligent refrigeration type compressed air dryer, the intelligent refrigeration type compressed air dryer comprises an equipment inlet, a heat exchanger, a cyclone separator and an equipment outlet which are sequentially connected, a refrigeration system is connected to one side of the heat exchanger so that compressed air enters from the equipment inlet, condensed water and low-temperature drying compressed air are obtained after heat exchange and temperature reduction of the heat exchanger and gas-liquid separation of the cyclone separator are sequentially carried out, and the low-temperature drying compressed air is discharged from the equipment outlet after returning to the heat exchanger for heat exchange, and the use method comprises the following steps:
step one, when the heat exchanger and the cyclone separator operate, condensed water in the cyclone separator is discharged into a condensed fluid waste oil collecting box through an electronic drainer;
secondly, respectively acquiring the enthalpy of the wet air at the inlet and the outlet of the equipment;
and step three, calculating the system operation efficiency value of the intelligent refrigeration type compressed air dryer through the enthalpy of the equipment inlet wet air and the enthalpy of the equipment outlet wet air.
Further, in the second step, the enthalpy of the wet air is the sum of the product of the heat content and the moisture content of the unit water vapor and the heat content of the dry air.
Further, platinum thermal resistors for detecting temperature are arranged at the inlet and the outlet of the equipment, the heat content of dry air in the humid air is the product of the temperature and the gas constant-pressure specific heat capacity, and the heat content of water vapor in the humid air is the sum of the product of the temperature and the water vapor constant-pressure specific heat capacity and the latent heat of vaporization of water at 0 ℃.
Further, the device inlet is provided with a pressure transmitter for detecting the pressure of the compressed air, and the moisture content at the device inlet is as follows: w = A × p w /（p-p w ) (ii) a Wherein A is the ratio of the relative molecular mass of water to the relative molecular mass of air, p is the pressure of compressed air, p w Is the partial pressure of water vapor.
Further, the drain outlet department of condensate waste oil collecting box is equipped with the integration ultrasonic flowmeter who is used for detecting system's displacement, and the equipment entrance is equipped with the thermal mass flow meter who is used for detecting compressed air mass flow, and the moisture content in equipment exit is the difference of removing quotient and equipment entrance moisture content between system's displacement, the compressed air mass flow.
Furthermore, the intelligent refrigeration type compressed air dryer is connected with an electric appliance cabinet, the electric appliance cabinet is provided with a three-phase power meter for detecting the equipment power consumption of the intelligent refrigeration type compressed air dryer, and an equipment inlet is provided with a thermal mass flow meter for detecting the air flow of the equipment; in the third step, after the product of the difference between the enthalpy of the humid air at the inlet of the equipment and the enthalpy of the humid air at the outlet of the equipment and the air flow of the equipment is calculated, the quotient of the product and the consumed power of the equipment is the operating efficiency value of the system.
Further, the condensate waste oil collecting box includes decompression chamber, gravity separation room, adsorbs clean room and oil catcher, and the condensate gets into the decompression chamber earlier and carries out pressure release, flows into the gravity separation room afterwards with water oil separating, makes the greasy dirt get into the oil catcher, and the condensate gets into afterwards and adsorbs the clean room, discharges from the delivery port of condensate waste oil collecting box after purifying.
Furthermore, the refrigerant of the refrigeration system adopts HFO-1234yf or R410A.
The invention also discloses an intelligent freezing type compressed air dryer which comprises an equipment inlet, a heat exchanger, a cyclone separator and an equipment outlet which are sequentially connected, wherein a refrigerating system is connected to one side of the heat exchanger and used according to the using method of the intelligent freezing type compressed air dryer, and the bottoms of the heat exchanger and the cyclone separator are connected to a condensate waste oil collecting box through electronic drainers.
Furthermore, the bottom of the decompression chamber is provided with a dust collector, the side of the decompression chamber is provided with an opening, the opening is higher than the position of the dust collector, a supply pipe is connected between the gravity separation chamber and the adsorption purification chamber, an oil overflow pipe is connected between the gravity separation chamber and the oil collector, and the height of one end of the supply pipe, which is close to the gravity separator, is lower than the height of one end of the oil overflow pipe, which is close to the gravity separator.
The invention has the beneficial effects that:
1. by calculating the operating efficiency value of the system, a user can intuitively and effectively know the operating state of the whole equipment;
2. through the setting of condensate waste oil collecting box for the greasy dirt that contains in the condensate water is together collected in condensate waste oil collecting box with the comdenstion water, and discharges again after carrying out greasy dirt separation treatment through condensate waste oil collecting box, reaches the national oily waste water discharge requirement with the emission of guaranteeing compressed air dryer, improves environmental protection effect.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the connection of the refrigeration system to the heat exchanger of the present invention.
Fig. 3 is a circuit diagram of a refrigeration system according to the present invention.
FIG. 4 is a schematic view of the structure of the condensed water waste oil collection tank of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships that are based on those shown in the drawings, which are merely for convenience in describing the present disclosure and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus the terms above should not be construed as limiting the present disclosure.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
As shown in fig. 1, the present invention provides a method for using an intelligent refrigeration type compressed air dryer, the intelligent refrigeration type compressed air dryer includes an equipment inlet, a heat exchanger 1, a cyclone separator 2 and an equipment outlet, which are connected in sequence, a refrigeration system 3 is connected to one side of the heat exchanger 1, so that compressed air enters from the equipment inlet, the compressed air is subjected to heat exchange and temperature reduction by the heat exchanger 1, gas-liquid separation by the cyclone separator 2 to obtain condensed water and low-temperature dry compressed air, and the low-temperature dry compressed air returns to the heat exchanger 1 for heat exchange and then is discharged from the equipment outlet, including the following steps:
step one, when the heat exchanger 1 and the cyclone separator 2 operate, condensed water in the cyclone separator 2 is discharged into a condensed liquid waste oil collecting box 5 through an electronic drainer 4;
secondly, respectively acquiring the enthalpy of the wet air at the inlet and the outlet of the equipment;
and step three, calculating the system operation efficiency value of the intelligent refrigeration type compressed air dryer through the enthalpy of the equipment inlet wet air and the enthalpy of the equipment outlet wet air.
The heat exchanger adopts a plate-fin heat exchanger, the interior of the heat exchanger comprises a precooler and an evaporator, the refrigerating system comprises a refrigerating compressor, a water-cooling condenser, a drying filter and a thermostatic expansion valve which are sequentially connected, one side of the refrigerating compressor is connected to a refrigerant outlet of the evaporator, one side of the thermostatic expansion valve is connected to a refrigerant inlet of the evaporator, the plate-fin heat exchanger and the refrigerating system are both in the prior art, and the details are not repeated here.
When the intelligent refrigeration type compressed air dryer is actually used, the inlet of the equipment is connected with an external air compressor, so that moist heat compressed air from the air compressor enters a precooler in a heat exchanger from the inlet of the equipment, exchanges heat with low-temperature dry compressed air subjected to gas-water separation to obtain primary cooling, then enters an evaporator to be further cooled to dew point temperature, condensed liquid water enters a cyclone separator to be subjected to gas-water separation, and is discharged into a condensate waste oil collecting box through an electronic drainer, meanwhile, the low-temperature dry compressed air subjected to gas-water separation returns to the precooler, exchanges heat with the moist heat compressed air subsequently entering the precooler to be heated, and is discharged from the outlet of the equipment; when the low-temperature dry compressed air in the precooler exchanges heat with the damp and hot compressed air, the direct contact is not carried out, and only the heat exchange treatment is carried out, so that the problem that the damp and hot compressed air is directly discharged without being cooled and dehumidified is solved.
The dew point temperature is the temperature at which the air is cooled to saturation, and is an index for measuring the dryness of the air. Rather than the concept of temperature in the surface sense, which in this case is about 0-5 ℃.
In addition, as shown in fig. 2 and 3, when the interior of the evaporator in the heat exchanger is cooled by the refrigeration system, the low-temperature and low-pressure liquid refrigerant enters the evaporator, absorbs heat of compressed air and evaporates into a gaseous state, the gaseous refrigerant is sucked by the refrigeration compressor, the low-temperature and low-pressure gaseous refrigerant is compressed into high-temperature and high-pressure gas by the refrigeration compressor and then discharged to the upper inlet of the water-cooled condenser, the heat carried by the gaseous refrigerant is taken away by cooling water in the water-cooled condenser and is changed into normal-temperature and high-pressure liquid, the liquid enters the drying filter to filter trace impurities and moisture contained in the refrigerant, then the liquid refrigerant enters the throttling device and is changed into the low-temperature and low-pressure liquid refrigerant again, the liquid refrigerant enters the evaporator to absorb heat and evaporate, and the cycle is repeated under the driving of the refrigeration compressor.
Preferably, when the liquid at the bottoms of the heat exchanger 1 and the cyclone separator 2 is discharged into the waste condensate oil collecting box 5, the waste condensate oil collecting box 5 is used for performing oil stain separation on the internal liquid and then discharging the liquid; wherein the condensed liquid waste oil collecting box 5 comprises a decompression chamber 52, a gravity separation chamber 511, an adsorption purification chamber 57 and an oil collector 512.
Specifically, moisture in the compressed air is cooled and condensed, then enters a cyclone separator to be separated from dry compressed air, and sequentially enters a pollution discharge anti-blocking device, an electronic drainer and a condensate waste oil collecting box from the bottom of the cyclone separator, and after oil removal treatment of the condensate waste oil collecting box, condensate water meeting the emission standard is discharged from a water outlet of the condensate waste oil collecting box.
Wherein, stifled device is prevented in blowdown is used for preventing that drainage pipe from blockking up, can adopt as patent number: ZL200620107001.7", and the electronic drainer is the prior art. ' drainage anti-blocking device for combined drier
As shown in fig. 4, when the oil contamination is separated by the waste oil condensate collecting box 5, the condensate enters the decompression chamber 52 for pressure release, then flows into the gravity separation chamber 511 for oil-water separation by gravity, at this time, the oil contamination floats on the oil contamination and enters the oil collector 512 through the oil overflow pipe 59, after the specific gravity separation, the condensate enters the adsorption purification chamber 57 through the pipeline, and is discharged from the water outlet 58 of the waste oil condensate collecting box 5 after being purified, so that the environmental protection effect is improved.
Specifically, the bottom of the decompression chamber 52 is provided with a dust collector 53, the circumferential edge of the decompression chamber 52 is provided with an opening, the opening is higher than the dust collector 53, a supply pipe 54 is connected between the gravity separation chamber 511 and the adsorption purification chamber 57, an oil overflow pipe 59 is connected between the gravity separation chamber 511 and the oil collector 512, and the height of one end of the supply pipe 54 close to the gravity separator 511 is lower than that of one end of the oil overflow pipe 59 close to the gravity separator 511.
Specifically, when the condensed water containing oil stains enters the condensed water waste oil collecting tank, the condensed water enters the decompression chamber 52 through the condensed water inlet 51, the pressure in the decompression chamber 52 is reduced, so that the condensed water is calmed down, further, the condensed water cannot generate turbulence in the process of entering the gravity separation chamber 511 from the opening, it is ensured that dust particles in the condensed water can be trapped in the dust collector 53 and cannot enter the gravity separation chamber 511 along with the turbulence, then, the condensed water in the gravity separation chamber 511 is subjected to gravity, so that free oil in the condensed water is separated from the condensed water and rises in the form of liquid drops to form an oil layer, when the oil layer is thick enough, the oil stains can automatically flow into the oil collector 512 from the position of the oil overflow pipe 59 for collection, and at the moment, the condensed water in the gravity separator 511 enters the adsorption purification chamber 57 from the bottom supply pipe 54 for adsorption purification.
Wherein, adsorb purge chamber 57 one side and seted up delivery port 58 and sample connection 510, and delivery port 58 position is higher than sample connection 510 position to make the comdenstion water after adsorbing the purification can flow out from delivery port 58 higher department and discharge, and the comdenstion water that does not adsorb the purification totally can take out a part from sample connection department and observe when needing the sample, and sample connection 510 department has the valve control and opens and close.
The adsorption purification chamber 57 may be further provided with a liquid level controller 55, and the liquid level in the adsorption purification chamber 57 may be detected.
In one embodiment of the present disclosure, an oleophilic pre-filter 56 is disposed on a side of the adsorption purification chamber 57 close to the supply pipe 54 to pre-treat the condensed water entering the adsorption purification chamber 57, and the adsorption purification chamber 57 in the present disclosure adopts two-stage treatment of lipophilic fiber material + activated carbon adsorption filter element to increase the filtering effect.
Preferably, the refrigerant of the refrigeration system 3 is HFO-1234yf or R410A.
Specifically, the GWP (global warming potential) of the HFO-1234yf refrigerant is less than 1, and compared with the Hydrofluorocarbon (HFC) refrigerant used in the domestic market at present, the global warming potential is reduced by 99.9%.
Preferably, the enthalpy of the humid air in step two is the sum of the product of the heat content and the moisture content of the unit water vapor and the heat content of the dry air.
And platinum thermal resistors for detecting temperature are arranged at the inlet and the outlet of the equipment, the heat content of dry air in the humid air is the product of the temperature and the gas constant-pressure specific heat capacity, and the heat content of water vapor in the humid air is the sum of the product of the temperature and the water vapor constant-pressure specific heat capacity and the latent heat of vaporization of water at 0 ℃.
Simultaneously, the equipment entrance is provided with the pressure transmitter who is used for detecting compressed air pressure, and equipment entrance moisture content is: w = A × p w /（p-p w ) (ii) a Wherein A is the ratio of the relative molecular mass of water to the relative molecular mass of air, p is the pressure of compressed air, p w Is the water vapor partial pressure; the drain outlet of the condensate waste oil collecting box 5 is provided with an integrated ultrasonic flowmeter for detecting the water discharge of the system, the inlet of the device is provided with a thermal mass flowmeter for detecting the mass flow of compressed air, and the moisture content at the outlet of the device is the difference between the water discharge of the system and the mass flow of the compressed air, wherein the quotient is removed and the moisture content at the inlet of the device is reduced.
The intelligent refrigeration type compressed air dryer is connected with an electric appliance cabinet, the electric appliance cabinet is provided with a three-phase power meter for detecting the equipment power consumption of the intelligent refrigeration type compressed air dryer, and an equipment inlet is provided with a thermal mass flow meter for detecting the air flow of the equipment; in the third step, after the product of the difference between the enthalpy of the wet air at the inlet of the device and the enthalpy of the wet air at the outlet of the device and the air flow of the device is calculated, the quotient of the quotient and the consumed power of the device is the running efficiency value of the system.
Simultaneously, the drain outlet department of condensate waste oil collecting box 5 is equipped with integrated ultrasonic flowmeter.
As shown in table 1 and fig. 2, various detection instruments, specifically, a plurality of detection instruments, are installed at various positions in the intelligent refrigeration type compressed air dryer;
TABLE 1
In the process of calculating the operating efficiency value of the system, the effective heat load of the system is the difference of enthalpy values of materials at an inlet and an outlet of the equipment, and the power consumption N is monitored in real time by a three-phase power meter matched with the equipment.
The enthalpy (I) of the humid air is the sum of the heat content of the dry air and the heat content of the water vapour in the humid air.
Heat content per kg dry air: i is a =c a t (kJ/kg dry air)
Heat content per kg steam: I.C. A w =c w t +2490 (kJ/kg steam)
Enthalpy of humid air I = c a t+（c w t+2490）W=（c a +c w W) t +2490W (kJ/kg dry air); in this formula, since W is the moisture content, that is, the water content per kg of air. The enthalpy per kilogram of air moisture is equal to the water content times the enthalpy per kilogram of water vapor.
Wherein:
C a the constant pressure specific heat capacity of the gas is 1.01kJ/kg ℃;
C w the specific heat capacity is the constant pressure of water vapor, and the value is 1.88 kJ/kg ℃;
2490 is latent heat of vaporization of water at 0 deg.C, in kJ/kg;
t represents temperature, degrees centigrade, units ℃. The temperature of the inlet and the outlet of the equipment is obtained by measuring high-precision platinum thermal resistors respectively arranged at the inlet and the outlet of the equipment;
w is the moisture content, and the moisture content of the compressed air is obtained by the following moisture content calculation formula:
W=0.621945p w /（p-p w ）；
wherein:
0.621945 is the ratio of the water relative molecular mass (18.015268) to the air relative molecular mass (28.966).
p is the pressure of the compressed air, the moisture content W of the compressed air at the inlet of the apparatus Into During the calculation, this value is read by the pressure transmitter at the inlet of the device, in units: kPa.
p w Is water vaporPressure, unit: kPa; because the inlet air of the equipment is saturated water-containing compressed air, the moisture content W of the compressed air at the inlet of the equipment Into P in the calculation process W The value can be represented by the equation lgP of Antoni w = 7.07406-1657.46/(T + 227.02).
T is the temperature of the compressed air and the moisture content W of the compressed air at the inlet of the device Into During the calculation, this value is read by the thermal resistance at the inlet of the device, in units: K.
because the condensed water of the refrigeration type compressed air dryer is discharged from the waste oil collecting box water outlet, the ratio of the water discharge amount to the compressed air flow amount in unit time is the reduction value of the moisture content of the compressed air. The compressed air outlet moisture content can be calculated by the following formula:
W go out =W Into -m H2O /G
Wherein m is H2O The system water discharge is measured by an integrated flowmeter, and G is the compressed air mass flow measured by an inlet thermal mass flowmeter. To sum up, the system operating efficiency value:
wherein epsilon is the comprehensive operation efficiency value of the intelligent refrigeration type compressed air dryer, and N is the function consumption measured by a three-phase power meter.
The invention also discloses an intelligent freezing type compressed air dryer which comprises an equipment inlet, a heat exchanger 1, a cyclone separator 2 and an equipment outlet which are sequentially connected, wherein a refrigerating system 3 is connected to one side of the heat exchanger 1 and used according to the using method of the intelligent freezing type compressed air dryer, and the bottoms of the heat exchanger 1 and the cyclone separator 2 are connected to a condensate waste oil collecting box 5 through an electronic drainer 4.
Meanwhile, the intelligent refrigeration type compressed air dryer can be also provided with an interactive interface, and in the preferred embodiment of the scheme, a high-performance embedded integrated touch screen with a Cortex-A8 CPU as a core (dominant frequency 1 GHz) is selected;
on the touch screen, there may be displayed: and the detected air inlet temperature of the equipment, the exhaust temperature of the equipment, the evaporating temperature of the refrigerant, the condensing temperature of the refrigerant, the running current, the inlet volume flow, the discharge amount of the condensate, the outlet dew point temperature, the inlet air pressure and the like.
And provides corresponding suggestive operation suggestions in a targeted manner, such as: if the inlet temperature is too high, please check the front air compressor; if the condensate is abnormally discharged, please check a sewage system; if the pressure of the refrigerant is too high, please check the cooling water and the water-cooled condenser.
And the system operation efficiency, the total average power consumption, the annual average power consumption, the monthly average power consumption, the daily average power consumption and the like can be further calculated by matching with the calculated system operation efficiency value.
In the scheme, the connection of 4G (Mobile/Unicom/Telecommunications) or WiFi (IEEE 802.11 b/G/n 2.4 GHz) communication is supported, so that a user can view information and perform simple control in a remote interaction mode.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a method for using of intelligent refrigerated compressed air dryer, intelligent refrigerated compressed air dryer is including consecutive equipment entry, heat exchanger (1), cyclone (2) and equipment export, refrigerating system (3) are connected in one side of heat exchanger (1) to make compressed air get into by the equipment entry, in proper order through heat exchanger (1) heat transfer cooling, obtain condensate water and low temperature drying compressed air behind cyclone (2) gas-liquid separation, low temperature drying compressed air gets back and carries out the heat exchange in heat exchanger (1) and then discharges by the equipment exit, a serial communication port, the system comprises the following steps:
step one, when the heat exchanger (1) and the cyclone separator (2) operate, condensed water in the cyclone separator (2) is discharged into a condensed fluid waste oil collecting box (5) through an electronic drainer (4);
secondly, respectively obtaining the enthalpy of the wet air at the inlet and the outlet of the equipment;
and thirdly, calculating the system operation efficiency value of the intelligent refrigeration type compressed air dryer through the enthalpy of the wet air at the inlet of the equipment and the enthalpy of the wet air at the outlet of the equipment.
2. The method of using an intelligent refrigerated compressed air dryer of claim 1, wherein: in the second step, the enthalpy of the wet air is the sum of the product of the heat content and the moisture content of the unit water vapor and the heat content of the dry air.
3. The method of using an intelligent refrigerated compressed air dryer of claim 2, wherein: the inlet and outlet of the device are both provided with platinum thermal resistors for detecting temperature, the heat content of dry air in the humid air is the product of the temperature and the constant-pressure specific heat capacity of the gas, and the heat content of water vapor in the humid air is the sum of the product of the temperature and the constant-pressure specific heat capacity of the water vapor and the latent heat of vaporization of the water at 0 ℃.
4. The method of using an intelligent refrigerated compressed air dryer of claim 2, wherein: the equipment entrance is provided with the pressure transmitter who is used for detecting compressed air pressure, and equipment entrance moisture content is: w = A × p w /（p-p w ) (ii) a Wherein A is the ratio of the relative molecular mass of water to the relative molecular mass of air, p is the pressure of compressed air, p w Is the partial pressure of water vapor.
5. The method of using an intelligent refrigerated compressed air dryer of claim 4, wherein: an integrated ultrasonic flowmeter for detecting the water discharge of the system is arranged at the water discharge port of the condensate waste oil collecting box (5), a thermal mass flowmeter for detecting the mass flow of compressed air is arranged at the equipment inlet, and the moisture content at the equipment outlet is the difference between the moisture content at the inlet of the device and the moisture content at the quotient between the water discharge of the system and the mass flow of the compressed air.
6. The method of using an intelligent refrigerated compressed air dryer of claim 1, wherein: the intelligent freezing type compressed air dryer is connected with an electric appliance cabinet, the electric appliance cabinet is provided with a three-phase power meter for detecting the equipment power consumption of the intelligent freezing type compressed air dryer, and an equipment inlet is provided with a thermal mass flow meter for detecting the air flow of the equipment; in the third step, after the product of the difference between the enthalpy of the wet air at the inlet of the device and the enthalpy of the wet air at the outlet of the device and the air flow of the device is calculated, the quotient of the quotient and the consumed power of the device is the running efficiency value of the system.
7. The method of using an intelligent refrigerated compressed air dryer of claim 1, wherein: the condensate waste oil collecting box (5) comprises a decompression chamber (52), a gravity separation chamber (511), an adsorption purification chamber (57) and an oil collector (512), wherein condensate firstly enters the decompression chamber (52) for pressure release, then flows into the gravity separation chamber (511) for oil-water separation, so that oil dirt enters the oil collector (512), and then enters the adsorption purification chamber (57), and is discharged from a water outlet (58) of the condensate waste oil collecting box (5) after purification.
8. The method of using an intelligent refrigerated compressed air dryer of claim 1, wherein: the refrigerant of the refrigerating system (3) adopts HFO-1234yf or R410A.
9. The utility model provides an intelligent refrigerated compressed air dryer, intelligent refrigerated compressed air dryer is including consecutive equipment entry, heat exchanger (1), cyclone (2) and equipment export, and refrigerating system (3) are connected in one side of heat exchanger (1), its characterized in that: use of the intelligent refrigerated compressed air dryer according to any of claims 1-8, with the heat exchanger (1) and the bottom of the cyclone separator (2) both connected to the condensed waste oil collection tank (5) through the electronic drainer (4).
10. The intelligent refrigerated compressed air dryer of claim 9, wherein: the bottom of the decompression chamber (52) is provided with a dust collector (53), the side of the decompression chamber (52) is provided with an opening, the opening is higher than the position of the dust collector (53), a supply pipe (54) is connected between the gravity separation chamber (511) and the adsorption purification chamber (57), an oil overflow pipe (59) is connected between the gravity separation chamber (511) and the oil collector (512), and the height of one end of the supply pipe (54) close to the gravity separator (511) is lower than that of one end of the oil overflow pipe (59) close to the gravity separator (511).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117258493A (en) * | 2023-11-21 | 2023-12-22 | 麦克斯流体科技(江苏)有限公司 | Dehumidifying device of freeze dryer |
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| WO1994005846A1 (en) * | 1992-08-27 | 1994-03-17 | Fisher & Paykel Limited | Heat pump cycle clothes drier |
| JP2004181373A (en) * | 2002-12-04 | 2004-07-02 | Hitachi Industries Co Ltd | Air dryer |
| TW200823366A (en) * | 2006-11-30 | 2008-06-01 | Qing-Fu Huang | Application method of a heat pump for a drying machine |
| CN204182270U (en) * | 2014-11-10 | 2015-03-04 | 苏州赛弗尔机械有限公司 | Condensing hot air furnace freezing type drier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117258493A (en) * | 2023-11-21 | 2023-12-22 | 麦克斯流体科技(江苏)有限公司 | Dehumidifying device of freeze dryer |
| CN117258493B (en) * | 2023-11-21 | 2024-03-12 | 麦克斯流体科技(江苏)有限公司 | Dehumidifying device of freeze dryer |
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| CN115382364B (en) | 2023-03-10 |
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