CN210751315U - Air source multiple-effect vacuum evaporation system applied to cutting fluid concentration - Google Patents
Air source multiple-effect vacuum evaporation system applied to cutting fluid concentration Download PDFInfo
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- CN210751315U CN210751315U CN201921361520.XU CN201921361520U CN210751315U CN 210751315 U CN210751315 U CN 210751315U CN 201921361520 U CN201921361520 U CN 201921361520U CN 210751315 U CN210751315 U CN 210751315U
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Abstract
The utility model relates to an air source multiple-effect vacuum evaporation system applied to cutting fluid concentration, which is characterized by comprising a cutting fluid module, a steam module, an evaporation fluid module, a main loop refrigerant module, a refrigeration loop refrigerant module and a vacuumizing module; under the same condensing temperature working condition, the energy consumption is reduced. The phenomenon of local overheating is prevented, the heat recovery of condensed water is realized, and the scaling phenomenon generated inside the evaporation tank is prevented by the staged investment according to the characteristics of different temperatures and concentration states. The starting time of the system is effectively shortened, and is one fourth of the starting time of the traditional equipment. Improving the efficiency of the system and reducing heat dissipation loss.
Description
Technical Field
The utility model belongs to a liquid evaporation processing system field especially relates to an air source multiple-effect vacuum evaporation system for cutting fluid is concentrated.
Background
The cutting fluid is used for cooling and lubricating a workpiece and a cutter in the metal cutting or grinding process, and has the functions of cleaning and rust prevention. The waste cutting fluid circularly discharged from a machining terminal usually contains mineral oil, animal and vegetable oil, a surfactant, an extreme pressure additive, a mildew-proof bactericide, various metal ions, suspended matters and the like, can not be recycled after use, and is finally recycled or indirectly discharged as liquid waste. The harm of the cutting fluid to the environment is mainly reflected in the pollution of the leakage fluid and the waste liquid to water resources and soil. The most effective method is to evaporate 95% of the water contained in the cutting fluid and to recover, incinerate or reuse the remaining concentrated solution.
Current evaporator systems take essentially three forms:
the first evaporator system adopts steam as a heat source, and because the system adopts higher steam temperature, the system adopts multi-stage evaporation system design, the system design is complex, and a user must have steam as the heat source. The system is complex, the occupied area is large, one-time investment is large, and small enterprises cannot complete investment. Because the evaporation temperature is higher, the oil content and volatile organic compounds carried by the evaporated steam are more, and the COD value of the generated condensed water is higher.
The vapor compressor of the second evaporation system is used as a heat source, when the equipment is started, the vapor compressor is basically used for converting electric energy into heat energy, the starting process is long, the temperature rise is slow, and the energy efficiency ratio is low. The low-temperature and low-pressure steam generated by evaporation after normal operation is compressed into high-temperature and high-pressure steam by the steam compressor, and the heat is recovered by steam condensation and serves as a new waste liquid evaporation heat source, so that the operation efficiency is high. If the system is started for a plurality of times, the deviation between the designed evaporation capacity and the actual evaporation is generated, the shutdown time is long, and the overall efficiency is greatly influenced. The vapor compressor technology is monopolized by foreign manufacturers, the reliability of the domestic equipment is poor, and the temperature rise after vapor compression is insufficient. Because the steam density is lower under the high vacuum, the influence on a steam compressor is great, so the set evaporation temperature must be operated in a higher temperature range, about 86 ℃ is adopted mostly, the volatilization point of some pollutants is lower, and the evaporated distilled water organic matters and oil are relatively more. The system is easy to scale on the evaporation side due to the high evaporation temperature.
The third method adopts a compressor to provide a heat source, utilizes a refrigerant as a heat source transmission medium, can provide the efficiency with the energy efficiency ratio of about 4 when the equipment is started, has certain energy recovery design, but has certain defects of design, cannot realize good energy recovery and utilization, has higher energy efficiency than a steam compressor when being started, and has the energy consumption ratio which is 2-3 times higher than that of the steam compressor during normal operation. The evaporator adopts tubular evaporator mostly, and the circulating pump is sprayed into the evaporator through the shower nozzle by the evaporation liquid through the extrinsic cycle heating, and inside has the buffer board of different shapes, utilizes to increase by the surface area improvement evaporation capacity of evaporation liquid. The disadvantages are that: large volume, short exchange time of cold and hot media and insufficient heat exchange of heat source. The surface flow velocity of the circulating heat exchange tube is slow, the flow distribution on the shell side of the evaporator is uneven, the phenomenon of uneven heating exists, and local parts are easy to overheat and scale.
The utility model relates to a novel concentrated air source multiple-effect vacuum evaporation system of cutting fluid. The device is a heat exchange and evaporation integrated device, has the volume of 1/3 of the existing evaporation system, adopts two-stage heat exchange, a specially designed evaporator and a perfect energy recovery system. The method has the characteristics of high heat exchange efficiency, low scaling tendency, high energy efficiency ratio, low organic matter and oil content of produced distilled water and the like. The energy efficiency reaches the same level of foreign import.
SUMMERY OF THE UTILITY MODEL
The utility model provides an air source multiple-effect vacuum evaporation system applied to cutting fluid concentration, which is characterized by comprising a cutting fluid module, a steam module, an evaporation fluid module, a main loop refrigerant module, a refrigeration loop refrigerant module and a vacuumizing module;
the cutting fluid module comprises a second heat recovery heat exchanger, a first heat recovery heat exchanger, a primary evaporator and a secondary evaporator, wherein the second heat recovery heat exchanger comprises a cutting fluid inlet and an evaporated fluid outlet; the second heat recovery heat exchanger is connected to the first heat recovery heat exchanger, and the first heat recovery heat exchanger is connected to the primary evaporator and the secondary evaporator in two paths; the first-stage evaporator comprises a first-stage concentrated solution outlet, and the second-stage evaporator comprises a second-stage concentrated solution outlet;
the steam module comprises a primary evaporator, a secondary evaporator and a steam condenser; the primary evaporator is connected to the secondary evaporator; the secondary evaporator is connected to the steam condenser;
the evaporated liquid module comprises a steam condenser, a secondary evaporator, a primary condensed water tank, a secondary condensed water tank and a second heat recovery heat exchanger; the secondary evaporator is connected to the primary condensed water tank; the secondary condensed water tank is connected to the secondary heat recovery heat exchanger; the first-stage condensed water tank is connected to the second heat recovery heat exchanger;
the main loop refrigerant module comprises a steam condenser, an air-cooled fast heat evaporator, a dryer, a main compressor, a first-stage evaporator, an economizer, an air-cooled condenser, a main expansion valve and a first heat recovery heat exchanger; the steam condenser is divided into two paths and is respectively connected to the air-cooled fast-heating evaporator and the economizer; the air-cooled quick-heating evaporator is connected to the dryer; said dryer being connected to said main compressor; said main compressor is connected to said first stage evaporator; the primary evaporator is connected to the economizer; the economizer is divided into three paths and is respectively connected to the air-cooled condenser, the first heat recovery heat exchanger and the dryer; the air-cooled condenser and the first heat recovery heat exchanger are both connected to the steam condenser through the main expansion valve; according to the running state of the equipment, corresponding to different working conditions, the control loops are independently or simultaneously operated;
the refrigeration loop refrigerant module comprises a dehumidification compressor, a refrigeration loop condenser, a refrigeration expansion valve and a vacuum dehumidification condenser; said dehumidification compressor being connected to said refrigeration circuit condenser; the refrigeration loop condenser is connected to the vacuum dehumidification condenser through the refrigeration expansion valve; the vacuum dehumidifying condenser is connected to the dehumidifying compressor;
the vacuumizing module comprises a vacuum pump, a vacuum dehumidifying condenser, a first-stage condensate water tank and a second-stage condensate water tank; the first-stage condensed water tank and the second-stage condensed water tank are both connected to the vacuum dehumidifying condenser, and the vacuum dehumidifying condenser is connected to the vacuum pump.
Furthermore, the outer walls of the primary evaporator and the secondary evaporator are provided with ultrasonic descaling devices, the inner parts of the primary evaporator and the secondary evaporator comprise a plurality of evaporation tubes, and each evaporation tube is wound in the primary evaporator and the secondary evaporator according to a spiral structure in a mode that an inner layer is sleeved with an outer layer in a multilayer mode, and an odd layer and an even layer are opposite in spiral mode.
Further, the ultrasonic descaling device comprises ultrasonic vibrators, and the positions of the ultrasonic vibrators are arranged according to the characteristics of different cutting fluids; the ultrasonic descaling device is opened in stages according to the characteristics of different temperatures and concentration states of the system.
Furthermore, the first-stage evaporator and the second-stage evaporator are not provided with spray heads and buffer plates.
Advantageous effects
(1) The heat source adopts dedicated air source heat pump promptly the utility model provides a main compressor under the condition that does not have energy recuperation system, the single-stage just can realize higher energy efficiency ratio during the start-up. The equipment normally operates, after the two-stage system is normally put into operation, perfect energy recovery of two-stage energy utilization can be realized, higher evaporation temperature is provided for the refrigerant at the suction inlet of the compressor, and the reduction of the operating current of the compressor and the reduction of energy consumption are realized under the working condition of the same condensation temperature.
(2) The heat source directly enters the evaporating pot and passes through the double-spiral stainless steel tube, and spirally flows in the tube to generate good disturbance, so that the laminar flow state of the common tube evaporator is changed into a turbulent flow state, the heat exchange effect is enhanced, and the heat exchange time is prolonged; heat exchange is realized in the evaporator, the cutting fluid is directly heated, and the concentrated solution is discharged from the lower part of the tank body, so that the heat release process is completed; the spiral pipeline of this evaporimeter adopts special calculation mode design, guarantees to be close the same by the pipeline resistance of a tube bank, realizes more perfect flow distribution than prior art, guarantees the heat release of pipe side even as far as possible, prevents local overheated phenomenon to can not produce the phenomenon that the surperficial little bubble of indirect heating equipment influences heat transfer effect.
(3) And each stage of evaporator is not provided with a spray head and a baffle plate, and the volume of the evaporator is much smaller than that of the traditional evaporator.
(4) The vacuum device takes gas out from evaporation upper portion before the equipment operation, according to the evaporation temperature's of difference demand, automatically regulated vacuum is in order to adapt to the demand of evaporation to can realize the function of automatic fluid infusion with the negative pressure, so the utility model discloses need not establish the feed liquor pump.
(5) The heat source of the secondary evaporator adopts steam generated by the primary evaporator, and the steam is condensed in the secondary evaporator to release heat so as to heat the cutting fluid in the secondary evaporator; for first order evaporimeter, the second grade evaporimeter is equipped with higher vacuum, forms the evaporation temperature lower for first order evaporimeter for cutting fluid steam from first order evaporimeter can condense in the evaporimeter and release heat, and the evaporimeter of cooperation special design makes full use of the latent heat of vaporization that steam condenses the release, makes the efficiency that only uses first order evaporation improve 95%.
(6) The steam generated by the secondary evaporator enters a special condensing device to heat the refrigerant at the inlet of the air source heat pump, namely the air source heat pump, the refrigerant evaporates to absorb the heat released by the steam while condensing the steam, the efficiency of the air source heat pump is further improved, and the more perfect heat recovery and cyclic utilization in the prior art are realized; steam condensed by the secondary evaporator and the steam condenser respectively enters the primary and secondary condensate water tanks, and whether the cutting fluid entering the tank body needs to be configured or not is selected to be preheated through the second heat recovery heat exchanger according to the actual condensation temperature and the ambient temperature, so that the heat recovery of condensate water is realized, and the small heat loss is realized.
(7) And arranging the ultrasonic vibrators according to the characteristics of different cutting fluids. According to the characteristics of different temperatures and concentration states, the staged investment is adopted to prevent the scaling phenomenon generated inside the evaporation tank.
(8) The system is provided with the air-cooled fast-heating evaporator, when the system is started, the temperature difference between the expanded refrigerant and the environment is utilized, heat is absorbed from the environment to the maximum extent, the heat can be accumulated in the shortest time, the system quits the operation after the heat can realize self circulation, the starting time of the system is effectively shortened, and the starting time of the system is one fourth of the starting time of the traditional equipment.
(9) The system is provided with the economizer, the proper supercooling degree of the refrigerant is realized through adjustment when the system is started and operated, the temperature of the inlet of the compressor is increased, the efficiency of the system is improved, and the heat dissipation loss is reduced.
(10) The system is provided with a vacuumizing condensation device, so that water vapor of the system is prevented from entering the vacuum pump.
(11) And a first heat recovery heat exchanger is arranged in a bypass in front of the condenser, so that the running time of the air-cooled condenser is reduced as much as possible, the temperature of liquid supplement of the system is increased, and the power consumption of the running of the fan is reduced.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments will be briefly described below, and obviously, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic connection diagram of the system structure of the present invention;
fig. 2 is a schematic view of the evaporator of each stage of the present invention.
Wherein, 1-a main compressor; 2-first-stage evaporator; 3-an economizer; 4-air-cooled condenser; 5-a first expansion valve; 6-a steam condenser; 7-air-cooled fast heat evaporator; 8-a secondary evaporator; 9-first-stage condensed water tank; 10-a secondary condensate tank; 11-vacuum dehumidification condenser; 12-a vacuum pump; 13-a dehumidification compressor; 14-a refrigeration circuit condenser; 15-a refrigeration expansion valve; 16-a first heat recovery heat exchanger; 17-a second heat recovery heat exchanger; 18-a dryer; a 19-stage concentrated solution outlet; 20-a second-stage concentrated solution outlet; 21-a cutting fluid inlet; 22-evaporative liquid drain.
Detailed Description
In the description of the present invention, it is to be understood that the terms "top", "upper", "lower", "side", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, which are for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, and the connection may be internal to the two components. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The utility model provides an air source multiple-effect vacuum evaporation system applied to cutting fluid concentration, which is characterized by comprising a cutting fluid module, a steam module, an evaporation fluid module, a main loop refrigerant module, a refrigeration loop refrigerant module and a vacuumizing module;
the cutting fluid module comprises a second heat recovery heat exchanger 17, a first heat recovery heat exchanger 16, a primary evaporator 2 and a secondary evaporator 8, wherein the second heat recovery heat exchanger 17 comprises a cutting fluid inlet 21 and an evaporated fluid outlet 22; the second heat recovery heat exchanger 17 is connected to the first heat recovery heat exchanger 16, and the first heat recovery heat exchanger 16 is connected to the primary evaporator 2 and the secondary evaporator 8 in two paths; the primary evaporator 2 comprises a primary concentrated solution outlet 19, and the secondary evaporator 8 comprises a secondary concentrated solution outlet 20; concentrated solutions produced after the cutting fluid is evaporated and concentrated in the primary evaporator 2 and the secondary evaporator 8 are respectively discharged and collected from the primary concentrated solution discharge port 19 and the secondary concentrated solution discharge port 20;
the steam module comprises a primary evaporator 2, a secondary evaporator 8 and a steam condenser 6; the primary evaporator 2 is connected to the secondary evaporator 8, so that steam evaporated by the primary evaporator 2 enters the secondary evaporator 8 to be condensed and release heat, the cutting fluid is heated and evaporated in the secondary evaporator 8, and water in the cutting fluid in the secondary evaporator 8 is heated to be steam; the secondary evaporator 8 is connected to the steam condenser 6, so that cutting fluid steam is condensed into an evaporated fluid and enters an evaporated fluid module;
the evaporated liquid module comprises a steam condenser 6, a secondary evaporator 8, a primary condensed water tank 9, a secondary condensed water tank 10 and a second heat recovery heat exchanger 17; the secondary evaporator 8 is connected to the primary condensed water tank 9, so that the cutting fluid evaporated liquid from the secondary evaporator 8 is further condensed; the secondary condensed water tank 10 is connected to the secondary heat recovery heat exchanger 17, so that the cutting fluid steam in the steam module is condensed into cutting fluid evaporating liquid by the steam condenser 6 and flows into the secondary condensed water tank 10; the first-stage condensed water tank 9 is connected to the two heat recovery heat exchangers 17, so that the evaporated liquid in the evaporation system is discharged and collected from an evaporated liquid outlet of the second heat recovery heat exchanger 17; the temperature difference between the evaporated liquid and the make-up liquid is utilized for heating, so that the heat loss is reduced;
the main loop refrigerant module comprises a steam condenser 6, an air-cooled fast-heating evaporator 7, a dryer 18, a main compressor 1, a first-stage evaporator 2, an economizer 3, an air-cooled condenser 4, a main expansion valve 5 and a first heat recovery heat exchanger 16; the steam condenser 6 is divided into two paths and respectively connected to the air-cooled fast-heating evaporator 7 and the economizer 3; the air-cooled fast heat evaporator 7 is connected to the dryer 18; said drier 18 is connected to said main compressor 1; the main compressor 1 is connected to the first-stage evaporator 2; the primary evaporator 2 is connected to the economizer 3; the economizer 3 is divided into three paths and is respectively connected to the air-cooled condenser 4, the first heat recovery heat exchanger 16 and the dryer 18; the air-cooled condenser 4 and the first heat recovery heat exchanger 16 are both connected to the steam condenser 6 through the main expansion valve 5; according to the running state of the equipment, corresponding to different working conditions, the control loops are independently or simultaneously operated; through the description of the connection, each circuit of the main circuit refrigerant is formed;
the refrigeration loop refrigerant module comprises a dehumidification compressor 13, a refrigeration loop condenser 14, a refrigeration expansion valve 15 and a vacuum dehumidification condenser 11; said dehumidification compressor 13 is connected to said refrigeration circuit condenser 14; the refrigeration circuit condenser 14 is connected to the vacuum dehumidifying condenser 11 through the refrigeration expansion valve 15; the vacuum dehumidifying condenser 11 is connected to the dehumidifying compressor 13; the circuit of the refrigeration circuit refrigerant module is formed through the connection description;
the vacuumizing module comprises a vacuum pump 12, a vacuum dehumidifying condenser 11, a primary condensate water tank 9 and a secondary condensate water tank 10; the primary condensed water tank 9 and the secondary condensed water tank 10 are both connected to the vacuum dehumidifying condenser 11, and the vacuum dehumidifying condenser 11 is connected to the vacuum pump 12; the vacuum pump 12 is started to pump the whole system to vacuum through the connection of all the components of the evaporation system;
through the above description of the connection relationship of each component inside each module and the cross-connection relationship between each module, the connection relationship between each component of the whole evaporation system is described.
Furthermore, the outer walls of the primary evaporator 2 and the secondary evaporator 8 are provided with ultrasonic descaling devices, the inner parts of the primary evaporator 2 and the secondary evaporator 8 comprise a plurality of evaporating pipes, and each evaporating pipe is wound in the primary evaporator 2 and the secondary evaporator 8 according to a spiral structure in a mode that an inner layer is sleeved with an outer layer in a multilayer mode, and the odd layer and the even layer are opposite in spiral.
Further, the ultrasonic descaling device comprises ultrasonic vibrators, and the positions of the ultrasonic vibrators are arranged according to the characteristics of different cutting fluids; the ultrasonic descaling device is opened in stages according to the characteristics of different temperatures and concentration states of the system, so that the scaling phenomenon generated inside the evaporation tank is prevented.
Furthermore, the first-stage evaporator 2 and the second-stage evaporator 8 are not provided with spray heads and baffle plates.
Example 2
The specific workflow of the system is as follows:
when the evaporation system is to be started, starting the vacuum pump 12, vacuumizing the primary evaporator 2, the secondary evaporator 8 and the whole evaporation system, and when the vacuum value reaches a field set value, starting a cutting fluid inlet valve on a secondary heat recovery heat exchanger 17 in a cutting fluid module, and sucking the cutting fluid into the primary evaporator 2 and the secondary evaporator 8 by utilizing negative pressure through the internal connection of the cutting fluid module;
when the cutting fluid reaches a site set value, the main compressor 1 is started, the refrigerant in the main loop refrigerant module is compressed to generate high temperature and high pressure, the high temperature and high pressure enters each evaporation pipe of the primary evaporator 2 to heat the cutting fluid, and the concentrated solution generated after heating is discharged and collected through a concentrated solution outlet of the primary evaporator 2; the air-cooled condenser 4 in the main loop refrigerant module fully condenses the incompletely condensed refrigerant, and ensures that the refrigerant from the economizer 3 passes through the condenser 4 and reaches the main expansion valve 5 to be in a liquid state; the first heat recovery heat exchanger 16 has the similar function with the economizer 3 and the air-cooled condenser 4, namely, the refrigerant is cooled and heat exchanged, and meanwhile, the energy recovery is realized through the first heat recovery heat exchanger 16 and a heater in the economizer 3; the economizer 3 reduces the operation time of the air-cooled condenser; the refrigerant after condensation and heat release through the air-cooled condenser 4 and the first heat recovery heat exchanger 16 is throttled and decompressed through the main expansion valve 5 to be converted into low pressure and low temperature, the low pressure and low temperature enters the steam condenser 6 to be evaporated and absorb heat, the refrigerant enters the air-cooled fast heat evaporator 7 to absorb the heat of the environment if the temperature is lower than the ambient temperature through field setting, and the refrigerant directly bypasses the economizer 3 and the dryer 18 to return to the main compressor 1 if the temperature is close to the ambient temperature.
The cutting hot steam generated by the primary evaporator 2 enters the interior of the heating pipe of the secondary evaporator 8 under the action of vacuum suction of the vacuum pump 12, and heats the cutting fluid of the secondary evaporator 8 by condensation heat release; the secondary evaporator 8 has higher vacuum degree relative to the primary evaporator 2 to form lower evaporation temperature relative to the primary evaporator, so that steam from the primary evaporator 2 can be condensed in the secondary evaporator 8 to release heat, thereby generating cutting fluid steam in the secondary evaporator 8, and simultaneously, the concentrated solution generated after heating is discharged and collected through a concentrated solution outlet of the secondary evaporator 8; in addition, ultrasonic vibrators are arranged according to the characteristics of different cutting fluids, and the step-by-step input is performed according to the characteristics of different temperatures and concentration states to prevent the scaling phenomenon generated inside the evaporation tank; cutting fluid steam in the secondary evaporator 8 enters the steam condenser 6 for condensation and heat release, so that low-temperature and low-pressure refrigerant entering the main compressor 1 in the main loop refrigerant module can be heated, and energy recovery is realized; the cutting fluid after being evaporated in the evaporation system passes through the second heat recovery heat exchanger 17 to heat the feed liquid of the system for heat recovery when being discharged out of the system.
The system adopts a special compressor, can provide higher energy efficiency ratio, repeatedly utilizes generated heat, fully utilizes low-quality heat sources in air and system equipment to run and emit heat, releases the heat through the steam condenser 6 and absorbs the heat through the air-cooled fast-heating evaporator 7, has high energy recovery rate, and achieves the energy efficiency ratio of imported like products in practical tests.
Claims (4)
1. An air source multi-effect vacuum evaporation system applied to cutting fluid concentration is characterized by comprising a cutting fluid module, a steam module, an evaporation fluid module, a main loop refrigerant module, a refrigeration loop refrigerant module and a vacuumizing module;
the cutting fluid module comprises a second heat recovery heat exchanger (17), a first heat recovery heat exchanger (16), a primary evaporator (2) and a secondary evaporator (8), wherein the second heat recovery heat exchanger (17) comprises a cutting fluid inlet (21) and an evaporated fluid outlet (22); the second heat recovery heat exchanger (17) is connected to the first heat recovery heat exchanger (16), and the first heat recovery heat exchanger (16) is connected to the primary evaporator (2) and the secondary evaporator (8) in two paths; the primary evaporator (2) comprises a primary concentrated solution outlet (19), and the secondary evaporator (8) comprises a secondary concentrated solution outlet (20);
the steam module comprises a primary evaporator (2), a secondary evaporator (8) and a steam condenser (6); the primary evaporator (2) is connected to the secondary evaporator (8); the secondary evaporator (8) is connected to the steam condenser (6);
the evaporation liquid module comprises a steam condenser (6), a secondary evaporator (8), a primary condensed water tank (9), a secondary condensed water tank (10) and a second heat recovery heat exchanger (17); the secondary evaporator (8) is connected to the primary condensed water tank (9); the secondary condensed water tank (10) is connected to the secondary heat recovery heat exchanger (17); the first-stage condensed water tank (9) is connected to the second heat recovery heat exchanger (17);
the main loop refrigerant module comprises a steam condenser (6), an air-cooled fast-heating evaporator (7), a dryer (18), a main compressor (1), a primary evaporator (2), an economizer (3), an air-cooled condenser (4), a main expansion valve (5) and a first heat recovery heat exchanger (16); the steam condenser (6) is divided into two paths and respectively connected to the air-cooled fast-heating evaporator (7) and the economizer (3); the air-cooled fast heat evaporator (7) is connected to the dryer (18); said dryer (18) being connected to said main compressor (1); the main compressor (1) is connected to the first-stage evaporator (2); the primary evaporator (2) is connected to the economizer (3); the economizer (3) is divided into three paths and is respectively connected to the air-cooled condenser (4), the first heat recovery heat exchanger (16) and the dryer (18); the air-cooled condenser (4) and the first heat recovery heat exchanger (16) are both connected to the steam condenser (6) through the main expansion valve (5); according to the running state of the equipment, corresponding to different working conditions, the control loops are independently or simultaneously operated;
the refrigeration loop refrigerant module comprises a dehumidification compressor (13), a refrigeration loop condenser (14), a refrigeration expansion valve (15) and a vacuum dehumidification condenser (11); said dehumidification compressor (13) being connected to said refrigeration circuit condenser (14); the refrigeration loop condenser (14) is connected to the vacuum dehumidification condenser (11) through the refrigeration expansion valve (15); the vacuum dehumidifying condenser (11) is connected to the dehumidifying compressor (13);
the vacuumizing module comprises a vacuum pump (12), a vacuum dehumidifying condenser (11), a primary condensate water tank (9) and a secondary condensate water tank (10); the first-stage condensed water tank (9) and the second-stage condensed water tank (10) are both connected to the vacuum dehumidifying condenser (11), and the vacuum dehumidifying condenser (11) is connected to the vacuum pump (12).
2. The multi-effect vacuum evaporation system of air source for cutting fluid concentration as claimed in claim 1, wherein the primary evaporator (2) and the secondary evaporator (8) are provided with ultrasonic descaling device on the outer wall and internally comprise a plurality of evaporation tubes, and each evaporation tube is wound in the primary evaporator (2) and the secondary evaporator (8) according to spiral structure in the way of inner and outer multi-layer ring sleeve and odd and even layer spiral reversal.
3. The air source multi-effect vacuum evaporation system applied to cutting fluid concentration is characterized in that the ultrasonic descaling device comprises ultrasonic vibrators, and the positions of the ultrasonic vibrators are arranged according to the characteristics of different cutting fluids; the ultrasonic descaling device is opened in stages according to the characteristics of different temperatures and concentration states of the system.
4. The multi-effect vacuum evaporation system of air source for cutting fluid concentration as claimed in claim 1, characterized in that, neither the primary evaporator (2) nor the secondary evaporator (8) has spray head and baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921361520.XU CN210751315U (en) | 2019-08-21 | 2019-08-21 | Air source multiple-effect vacuum evaporation system applied to cutting fluid concentration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921361520.XU CN210751315U (en) | 2019-08-21 | 2019-08-21 | Air source multiple-effect vacuum evaporation system applied to cutting fluid concentration |
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| CN210751315U true CN210751315U (en) | 2020-06-16 |
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| CN201921361520.XU Withdrawn - After Issue CN210751315U (en) | 2019-08-21 | 2019-08-21 | Air source multiple-effect vacuum evaporation system applied to cutting fluid concentration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112402995A (en) * | 2019-08-21 | 2021-02-26 | 西安东方能源工程有限公司 | Air source multiple-effect vacuum evaporation system applied to cutting fluid concentration |
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2019
- 2019-08-21 CN CN201921361520.XU patent/CN210751315U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112402995A (en) * | 2019-08-21 | 2021-02-26 | 西安东方能源工程有限公司 | Air source multiple-effect vacuum evaporation system applied to cutting fluid concentration |
| CN112402995B (en) * | 2019-08-21 | 2023-10-24 | 西安东方能源工程有限公司 | Air source multi-effect vacuum evaporation system applied to cutting fluid concentration |
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