CN210088986U - Energy-saving multistage surface cooling deep dehumidification air treatment device - Google Patents
Energy-saving multistage surface cooling deep dehumidification air treatment device Download PDFInfo
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- CN210088986U CN210088986U CN201920590415.7U CN201920590415U CN210088986U CN 210088986 U CN210088986 U CN 210088986U CN 201920590415 U CN201920590415 U CN 201920590415U CN 210088986 U CN210088986 U CN 210088986U
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Abstract
The utility model belongs to the technical field of air conditioning, a cold degree of depth dehumidification air treatment plant of energy-saving multistage table is related to. The system comprises an internal and external composite two-phase flow heat pipe cold energy recovery system, a pre-cooling water system, a deep cooling water system and a central control four subsystems; the system comprises an internal heat pipe circulation subsystem, an external heat pipe circulation subsystem, an internal heat pipe circulation subsystem and an external heat pipe internal and external composite subsystem, wherein the internal and external composite two-phase flow heat pipe cold recovery subsystem is arranged in a structural form of internal heat pipe circulation and external heat pipe internal and external composite; the condenser of the inner heat pipe subsystem is arranged in front of the condenser of the outer heat pipe subsystem, and the evaporator of the inner heat pipe subsystem is arranged behind the evaporator of the outer heat pipe subsystem; compared with the prior art, the utility model is only butted with the freezing water pipeline and the deep cooling water pipeline of the workshop raw water system air conditioner, and the cold water resource of the original factory is utilized, thereby saving the investment of a plurality of independent compressor refrigerating units and simplifying the system structure; the energy-saving technology of the heat pipe cold energy recovery technology is utilized, and the air treatment efficiency is greatly improved; the structure is simple and reasonable in design and environment-friendly in application.
Description
The technical field is as follows:
the utility model belongs to the technical field of air conditioning, a energy-saving multistage table cold degree of depth dehumidification air treatment device is related to, especially an inside and outside combined type high accuracy air treatment device with precooling water and recooling water system.
Background art:
at present, the production and manufacturing of various industries such as pharmacy, electronics, textile and the like have strict requirements on temperature and humidity control, and a low-humidity process air conditioning environment is required all the year round. The traditional water system constant temperature and humidity air processing unit is generally a whole fresh air or primary return air whole air system, the system adopts chilled water at 7 ℃/12 ℃ to cool and dehumidify fresh air or mixed air, and the fresh air or mixed air is reheated by a steam heater or an electric heater and then sent into a room. However, the temperature reduction of the system is limited by the temperature of the frozen water, and the dew point of the machine can only reach about 14 ℃ and can not reach 5 ℃ required by a plurality of production processes. In addition, because the air temperature is lower after cooling and dehumidification, the air temperature requirement can be met only by reheating, and the energy utilization contradiction of firstly cooling and reheating exists, and the energy consumption of the air conditioning system is higher.
For workshops with low humidity working condition requirements, rotary wheel dehumidification systems are used in most occasions at present. In the rotary wheel dehumidification air-conditioning system, treated air is precooled by a front surface cooler, dehumidified by a rotary wheel to a dry state, cooled by a rear surface cooler to an air supply state point, and sent into a room. Even in a transition season, the surface cooler of the rotary wheel dehumidification unit needs cold water consumption, so that the water chilling unit needs to be started; in addition, the regeneration side needs to heat the air to over 120 ℃ by using methods such as steam heating or electric heating, and the like to obtain regeneration, which causes huge energy consumption and waste.
Therefore, an energy-saving multistage surface cooling deep dehumidification air treatment device is sought, a unit first-stage surface cooler is in butt joint with a chilled water pipeline of a workshop raw water system air conditioner, a second-stage surface cooler is in butt joint with a chilled water pipeline of a workshop chilled water system after heat exchange, and the problems of large energy consumption, low efficiency, large occupied area, complex system and the like of the existing temperature and humidity adjusting air treatment device are solved by utilizing a heat pipe cold energy recovery technology.
The utility model has the following contents:
an object of the utility model is to overcome the shortcoming that prior art exists, seek to design and provide a novel, energy-conserving, air treatment plant of accurate control production environment humiture. The utility model discloses the refrigerated water pipeline butt joint of unit primary surface cooler and workshop raw water system air conditioner, the refrigerated water pipeline butt joint of secondary surface cooler and workshop cryogenic water system after the heat transfer, through two-stage surface cooling, with air dew point and moisture content accurate control at the target parameter; the system has simple structure and saves the production cost of equipment; the heat pipe cold energy recovery technology is utilized, the temperature of the dehumidified air is adjusted and reheated, the air treatment efficiency can be greatly improved, and the dehumidifying and reheating operation cost is saved.
In order to realize the purpose of the utility model, the energy-saving multi-stage surface cooling deep dehumidification air treatment device related by the utility model is divided into an internal and external composite two-phase flow heat pipe cooling capacity recovery system, a pre-cooling water system, a deep cooling water system and a central control four subsystems according to the functions; the system comprises an internal heat pipe circulation subsystem, an external heat pipe circulation subsystem, an internal heat pipe circulation subsystem and an external heat pipe internal and external composite subsystem, wherein the internal and external composite two-phase flow heat pipe cold recovery subsystem is arranged in a structural form of internal heat pipe circulation and external heat pipe internal and external composite; the condenser of the inner heat pipe subsystem is arranged in front of the condenser of the outer heat pipe subsystem, the working temperature of the heat pipes is lower, and the evaporator of the inner heat pipe subsystem is arranged behind the evaporator of the outer heat pipe subsystem; the water baffle is arranged in front of the condenser of the inner heat pipe subsystem, the condenser of the inner heat pipe subsystem is connected with a circulating solution pump of the inner heat pipe subsystem through a condenser condensate conveying pipe of the inner heat pipe subsystem, the circulating solution pump of the inner heat pipe subsystem is connected with a liquid distributor of the inner heat pipe subsystem through a circulating solution conveying pipe of the inner heat pipe subsystem, the liquid distributor of the inner heat pipe subsystem is connected with an evaporator of the inner heat pipe subsystem through an equal-length liquid-equalizing pipe of the inner heat pipe subsystem, and the evaporator of the inner heat pipe subsystem is connected with the condenser of the inner heat pipe subsystem through a gaseous working medium conveying pipe of the inner heat pipe subsystem and a gaseous working medium main pipe of the; the condenser of the inner heat pipe subsystem recovers the cold energy of the air flowing out of the water baffle plate and reaching the dew point temperature of the machine, the gas-liquid two-phase flow working medium entering the condenser of the inner heat pipe subsystem from the primary gas working medium pipe of the inner heat pipe subsystem is totally condensed into liquid, the liquid enters the circulating solution pump of the inner heat pipe subsystem through the condenser condensate conveying pipe of the inner heat pipe subsystem, the circulating solution pump of the inner heat pipe subsystem is connected with the liquid distributor pipeline of the inner heat pipe subsystem through the circulating solution conveying pipe of the inner heat pipe subsystem, the circulating solution pump of the inner heat pipe subsystem is conveyed to the liquid distributor of the inner heat pipe subsystem through the circulating solution conveying pipe of the inner heat pipe subsystem after increasing the pressure, the liquid is uniformly distributed and then is conveyed to the evaporator of the inner heat pipe subsystem through the equal-length liquid distributing pipe of the inner heat pipe subsystem, wherein the right side of the evaporator of the inner heat pipe subsystem, the left side of the equal-length liquid equalizing pipe of the inner heat pipe subsystem is sequentially connected with a two-phase flow conveying pipe bundle of the inner heat pipe subsystem, a gas-liquid separator of the inner heat pipe subsystem, gaseous working medium conveying of the inner heat pipe subsystem and a gaseous working medium main pipe of the inner heat pipe subsystem, and an output end pipeline of the gaseous working medium main pipe of the inner heat pipe subsystem is connected to a condenser of the inner heat pipe subsystem; after the evaporator of the inner heat pipe subsystem absorbs the heat in the air from the evaporator of the outer heat pipe system and converts the heat into gas-liquid two-phase flow working medium, the gas working medium is conveyed into the gas working medium main pipe of the inner heat pipe subsystem through the gas working medium conveying pipe of the inner heat pipe subsystem, and the two-phase flow working medium is conveyed into the condenser of the inner heat pipe subsystem again, so that circulation is formed, and the recovery of cold energy is continuously realized;
the gas working medium main pipe of the external heat pipe system for conveying cold is connected with the upper end pipeline of the condenser of the external heat pipe system, the lower end of the condenser of the external heat pipe system is sequentially connected with a condenser condensate conveying pipe of the external heat pipe system, a liquid storage tank of the external heat pipe system, a circulating solution pump of the external heat pipe system, a circulating solution conveying pipe of the external heat pipe system, an evaporator of the external heat pipe system, an equal-length liquid-equalizing pipe of the external heat pipe system and an evaporator of the external heat pipe system, wherein the equal-length liquid-equalizing pipe of the external heat pipe system is positioned on the right side face of the evaporator of the external heat pipe system, and the evaporator of the external heat pipe system is positioned at a left opening of an air conditioner box body and is used for absorbing heat from fresh air or mixed air and converting the heat into a gas-liquid two; the left side of the evaporator of the external heat pipe system is sequentially connected with a two-phase flow conveying pipe bundle of the external heat pipe system, a gas-liquid separator of the external heat pipe system, a gaseous working medium conveying pipe of the external heat pipe system and a gaseous working medium main pipe of the external heat pipe system;
the condenser of the external heat pipe system recovers the cold energy of the air flowing out from the condenser of the internal heat pipe system, the gas-liquid two-phase flow working medium entering the condenser of the external heat pipe system from the gas working medium main pipe of the external heat pipe system is completely condensed into liquid, the liquid enters the circulating solution pump of the external heat pipe system through the condenser condensate conveying pipe of the external heat pipe system under the action of gravity, the liquid is conveyed to the evaporator of the external heat pipe system through the circulating solution conveying pipe of the external heat pipe system after the pressure is increased, the liquid is uniformly separated and then conveyed to the evaporator of the external heat pipe system through the equal-length liquid-sharing pipe of the external heat pipe system, the heat in the fresh air or the mixed air is absorbed and converted into the gas-liquid two-phase flow working medium, the gas-liquid two-phase flow working medium is conveyed to the gas working medium main pipe of the external heat pipe system through the gas working medium conveying pipe of the, thus forming a circulation and continuously realizing the recovery of cold energy.
The utility model relates to a precooling water system, which comprises a main body structure of a 7 ℃/12 ℃ chilled water system, wherein the main body structure comprises a 7 ℃/12 ℃ chilled water system surface cooler, a precooling air conditioner surface cooler flow regulating valve of the water system, an external cold source, a precooling air conditioner surface cooler drain pipe of the water system and a precooling air conditioner surface cooler water inlet pipe of the water system; the surface cooler of the 7 ℃/12 ℃ chilled water system for heat exchange is arranged between the surface cooler of the deep cold water and the evaporator of the inner heat pipe subsystem, the pipeline of the surface cooler of the 7 ℃/12 ℃ chilled water system is connected with an external cold source, and the pipeline is provided with a flow regulating valve of a precooling air-conditioning surface cooler of a water system for controlling; the external cold source is connected with a chilled water pipeline of a workshop raw water system air conditioner, cold water supplied by the external cold source enters a surface cooler of a chilled water system at the temperature of 7 ℃/12 ℃ after the flow of the cold water is regulated by a flow regulating valve of the surface cooler of the precooling air conditioner to absorb heat so as to cool air in an air duct, the cold water is moderately heated and then returns to the external cold source through a drain pipe of the surface cooler of the precooling air conditioner, and the cold water enters a refrigeration cycle of a precooling water subsystem after being; the flow regulating valve of the precooled air conditioner surface cooler regulates the flow to ensure the stability of enough refrigerating capacity and machine dew point and ensure the stability of drainage temperature at the same time, so that the water cooling unit of an external cold source runs stably; the pre-cooling water system cools and dehumidifies air from an evaporator of the inner heat pipe subsystem to a machine dew point of 14 ℃ to realize primary dehumidification.
The utility model relates to a main structure of a cryogenic water system, which comprises a cryogenic water surface cooler, a cryogenic water surface cooler header of the cryogenic water system, a cryogenic air conditioner surface cooler drain pipe of the cryogenic water system, a cryogenic air conditioner surface cooler flow regulating valve, a plate heat exchanger and an external cold source; the external cold source is butted with a chilled water pipeline of a workshop raw water system air conditioner, cold water supplied by the external cold source enters the plate heat exchanger after the flow of the cold water is regulated by the electric valve for ethylene glycol backwater at the temperature of minus 10 ℃, the chilled water with the temperature of 0 DEG/5 DEG is replaced and enters the surface cooler for deep cooling water to absorb heat so as to cool air in an air duct, the cold water is moderately heated and then returns to the plate heat exchanger through the drain pipe of the surface cooler for the deep cooling air conditioner, and the cold water enters the refrigeration cycle of the deep cooling water subsystem after exchanging heat with the external cold; the flow of the ethylene glycol backwater electric valve at the temperature of minus 10 ℃ is adjusted to ensure the stability of enough refrigerating capacity and air supply temperature and ensure the stability of drainage temperature, so that the water cooling unit of the plate heat exchanger runs stably.
The utility model relates to a main body structure of a central control subsystem, which comprises an air supply temperature sensor and an air supply temperature control signal line, wherein the air supply temperature sensor and the air supply temperature control signal line are arranged in an air conditioning box, the air supply temperature sensor is arranged at the inlet of a fresh air inlet duct, a rear temperature sensor of an outer heat pipe evaporator is arranged on the right side of an equal-length liquid equalizing pipe of the outer heat pipe subsystem, a rear temperature sensor of an inner heat pipe evaporator is arranged on the right side of the equal-length liquid equalizing pipe of the inner heat pipe subsystem, a rear temperature sensor of a precooling coil pipe is arranged on the right side of a surface cooler of a 7 ℃/12 ℃ chilled water system, a dew point temperature sensor is arranged on the right side of a; the central controller changes the external heat discharge amount by controlling the opening of the flow regulating valve of the steam heating coil to realize the regulation of the air supply temperature; then obtaining dew point temperature through a fresh air temperature sensor, an outer heat pipe evaporator rear temperature sensor, an inner heat pipe evaporator rear temperature sensor, a dew point temperature sensor and a dew point temperature signal transmission line which are arranged in an air conditioner box body, obtaining the front and rear temperatures of an inner and outer composite two-phase flow heat pipe evaporator and a condenser through a precooling coil rear temperature sensor, an inner heat pipe condenser rear temperature sensor and a corresponding temperature signal transmission line which are arranged in the air conditioner box body by a central controller, and completing the adjustment of the dew point temperature through the number of working tables of an inner and outer composite two-phase flow heat pipe cold energy recovery subsystem, the opening of a precooling air conditioner surface cooler flow regulating valve of a 7 DEG/12 DEG cold water system and the opening control of a-10 DEG/0 DEG deep cold water surface cooler flow; the central control subsystem has the following effects: the automatic regulation and control of the air supply temperature and the dew point temperature are realized.
The utility model discloses realize that energy-conserving dehumidification adjusts the temperature the air conditioning process step is: the air to be treated sequentially passes through an evaporator of an inner heat pipe subsystem of an inner and outer combined type two-phase flow heat pipe cold energy recovery subsystem, an evaporator of an outer heat pipe system and a surface cooler of a chilled water system at the temperature of 7 ℃/12 ℃ for cooling, is then deeply cooled to the dew point temperature of a machine by a deep cooling water surface cooler, is then removed with liquid water drops by a water baffle, is sequentially heated to the air supply temperature by a condenser of the outer heat pipe system of the inner and outer combined type two-phase flow heat pipe cold energy recovery subsystem and a condenser of the inner heat pipe subsystem, and is heated by a steam heating coil, so that the air conditioning process of; the central control subsystem controls the total refrigerating capacity and the dew point temperature by adjusting the opening degrees of a precooling air conditioner surface cooler flow regulating valve and a deep cooling water air conditioner surface cooler flow regulating valve of a water system to achieve the aim of humidifying, and controls the total heating capacity and the air supply temperature by adjusting the number of running machine sets of an internal and external composite two-phase flow heat pipe system and the opening degree of a steam heating coil flow regulating valve to achieve the aim of regulating the temperature; the starting and running processes of the air dehumidification and temperature regulation treatment are realized as follows: evacuating and filling a proper amount of working medium into an internal and external composite two-phase flow heat pipe cold energy recovery system, setting specific parameters of a dew point and an air supply temperature of a central control subsystem according to process requirements, starting a fan, and then starting a pre-cooling water system and a deep cooling water system; after about 10 minutes, the internal and external composite heat pipe cold energy recovery subsystem is started, and after 20 to 60 minutes, the air supply temperature and the dew point temperature in the system reach set values and are in a stable working stage, so that low-humidity air meeting the requirements of the air supply temperature and the dew point temperature can be continuously, efficiently and energy-efficiently provided.
Compared with the prior art, the utility model, only with the refrigeration water pipeline and the deep cooling water pipeline butt joint of the workshop raw water system air conditioner, utilized the cold water resource of the original factory district, saved the investment of multiple independent compressor refrigerating unit, no other refrigeration system external connecting pipe, simplified system structure, saved the equipment manufacturing cost; the energy-saving technology of the heat pipe cold quantity recovery technology is utilized, the air treatment efficiency is greatly improved, the air temperature and humidity are accurately controlled at target parameters, and the operation cost of temperature adjustment and dehumidification can be saved; the structure is simple and reasonable in design, convenient to use and environment-friendly in application.
Description of the drawings:
fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: an air-conditioning box body 1, a gaseous working medium main pipe 2 of an outer heat pipe system, a gaseous working medium main pipe 3 of an inner heat pipe system, a water baffle 4, a deep cold water surface cooler 5, a gaseous working medium conveying pipe 6 of the inner heat pipe system, a gaseous working medium conveying pipe 7 of the outer heat pipe system, an evaporator 8 of the inner heat pipe system, a liquid equalizing pipe 9 with equal length of the outer heat pipe system, an evaporator 10 of the outer heat pipe system, a fresh air inlet air duct 11, an air-conditioning air supply duct 12, a condenser 13 of the outer heat pipe system, a condenser 14 of the inner heat pipe system, a deep cold water surface cooler collecting pipe 15, a liquid equalizing pipe 16 with equal length of the inner heat pipe system, a fan 17, an external-10 ℃ ethylene glycol water supply opening 18, an internal circulation 0 ℃ ethylene glycol water supply opening 19, a tap water stop valve 20, a tap water check valve 21, a temperature sensor 22 behind the condenser of the outer heat pipe, a temperature, a condenser condensate delivery pipe 25 of the inner heat pipe subsystem, a 0/5 DEG ethylene glycol inner circulation solution pump 26, a surface cooler 27 of a 7/12 DEG chilled water system, a liquid separator 28 of the inner heat pipe subsystem, a two-phase flow delivery pipe bundle 29 of the inner heat pipe subsystem, a liquid separator 30 of the outer heat pipe system, a two-phase flow delivery pipe bundle 31 of the outer heat pipe system, a fan control signal line 32, an external tap water source 33, a plate heat exchanger 34, an inner circulation heat exchange system ethylene glycol exhaust port 35, an external cold source (7/12 DEG chilled water) 36, an inner heat pipe subsystem gas-liquid separator 37, an outer heat pipe system gas-liquid separator 38, a temperature signal delivery line 39, a temperature signal delivery line 41, a temperature signal delivery line 42, a temperature signal delivery line 43, a temperature signal delivery line 44, a temperature signal delivery line 45, an external cold source (-10 DEG/0 DEG ethylene glycol) 46, -10 ℃ ethylene glycol backwater electric valve 47, 0 ℃ ethylene glycol backwater port 48, internal circulation 5 ℃ ethylene glycol backwater port 49, liquid storage tank 50 of the external heat pipe system, liquid storage tank 51 of the internal heat pipe system, circulating solution pump 52 of the internal heat pipe system, central controller 53, 0 °/5 ℃ ethylene glycol internal circulating solution pump control signal line 54, circulating solution pump 55 of the external heat pipe system, circulating solution delivery pipe 56 of the external heat pipe system, circulating solution delivery pipe 57 of the internal heat pipe system, circulating pump control line 58 of the external heat pipe system, circulating pump control line 59 of the internal heat pipe system, external heat source 60, steam heating coil 61, air supply temperature sensor 62, air supply temperature control signal line 63, fresh air temperature sensor 64, external heat pipe evaporator rear temperature sensor 65, internal heat pipe rear temperature sensor 66, pre-cooling coil rear temperature sensor 67, rear temperature sensor 68 and dew point temperature sensor 69 of inner heat pipe condenser
The specific implementation mode is as follows:
the present invention will be further described with reference to the following specific embodiments and accompanying drawings.
Example (b):
the energy-saving multi-stage surface cooling deep dehumidification air treatment device related to the embodiment is divided into an internal and external composite two-phase flow heat pipe cold energy recovery system, a pre-cooling water system, a deep cooling water system and a central control four sub-system according to functions; the system comprises an internal heat pipe circulation subsystem, an external heat pipe circulation subsystem, an internal heat pipe circulation subsystem and an external heat pipe internal and external composite subsystem, wherein the internal and external composite two-phase flow heat pipe cold recovery subsystem is arranged in a structural form of internal heat pipe circulation and external heat pipe internal and external composite; the condenser 14 of the inner heat pipe subsystem is arranged in front of the condenser 13 of the outer heat pipe subsystem, the working temperature of the heat pipe is lower, and the evaporator 8 of the inner heat pipe subsystem is arranged behind the evaporator 10 of the outer heat pipe subsystem; the water baffle 4 is arranged in front of the condenser 14 of the inner heat pipe subsystem, the condenser 14 of the inner heat pipe subsystem is connected with a circulating solution pump 52 of the inner heat pipe subsystem through a condenser condensate delivery pipe 25 of the inner heat pipe subsystem, the circulating solution pump 52 of the inner heat pipe subsystem is connected with a liquid distributor 28 of the inner heat pipe subsystem through a circulating solution delivery pipe 57 of the inner heat pipe subsystem, the liquid distributor 28 of the inner heat pipe subsystem is connected with an evaporator 8 of the inner heat pipe subsystem through an equal-length liquid-equalizing pipe 16 of the inner heat pipe subsystem, and the evaporator 8 of the inner heat pipe subsystem is connected with the condenser 14 of the inner heat pipe subsystem through a gaseous working medium delivery pipe 6 of the inner heat pipe subsystem and a gaseous working medium main pipe 3 of the inner; the condenser 14 of the inner heat pipe subsystem recovers the cold energy of the air flowing out of the water baffle 4 reaching the dew point temperature of the machine, the gas-liquid two-phase flow working medium entering the condenser 14 of the inner heat pipe subsystem from the gas working medium main pipe 3 of the inner heat pipe subsystem is totally condensed into liquid, the liquid enters the circulating solution pump 52 of the inner heat pipe subsystem through the condenser condensate conveying pipe 25 of the inner heat pipe subsystem, the circulating solution pump 52 of the inner heat pipe subsystem is connected with the liquid distributor 28 of the inner heat pipe subsystem through the circulating solution conveying pipe 57 of the inner heat pipe subsystem, the circulating solution pump 52 of the inner heat pipe subsystem is sent to the liquid distributor 28 of the inner heat pipe subsystem through the circulating solution conveying pipe 57 of the inner heat pipe subsystem after increasing the pressure, the liquid is evenly distributed and then sent to the evaporator 8 of the inner heat pipe subsystem through the equal-length liquid-sharing pipe 16 of the inner heat pipe subsystem, wherein the right side of the evaporator 8 of the inner heat pipe subsystem is The liquid separator 28 is connected through a pipeline, the left side of the equal-length liquid equalizing pipe 16 of the inner heat pipe subsystem is sequentially connected with the two-phase flow conveying pipe bundle 29 of the inner heat pipe subsystem, the gas-liquid separator 37 of the inner heat pipe subsystem, the gaseous working medium conveying pipe 6 of the inner heat pipe subsystem and the gaseous working medium main pipe 3 of the inner heat pipe subsystem, and the output end pipeline of the gaseous working medium main pipe 3 of the inner heat pipe subsystem is connected to the condenser 14 of the inner heat pipe subsystem; after absorbing the heat in the air from the evaporator 10 of the outer heat pipe system and converting the heat into gas-liquid two-phase flow working medium, the evaporator 8 of the inner heat pipe system sends the gas working medium into the gas working medium main pipe 3 of the inner heat pipe system through the gas working medium conveying pipe 6 of the inner heat pipe system, and sends the two-phase flow working medium into the condenser 14 of the inner heat pipe system again, so as to form circulation and continuously realize the recovery of cold energy;
the gaseous working medium main pipe 2 of the external heat pipe system for conveying cold is connected with the upper end pipeline of the condenser 13 of the external heat pipe system, the lower end of the condenser 13 of the external heat pipe system is sequentially connected with a condenser condensate conveying pipe 24 of the external heat pipe system, a liquid storage tank 50 of the external heat pipe system, a circulating solution pump 55 of the external heat pipe system, a circulating solution conveying pipe 56 of the external heat pipe system, an evaporator 10 of the external heat pipe system, an equal-length liquid equalizing pipe 9 of the external heat pipe system and an evaporator 10 of the external heat pipe system, wherein the equal-length liquid equalizing pipe 9 of the external heat pipe system is positioned on the right side face of the evaporator 10 of the external heat pipe system, and the evaporator 10 of the external heat pipe system is positioned at the left opening of the air conditioning box body 1 and is used for absorbing heat from fresh air or mixed air and converting the heat into a gas-liquid two-phase flow; the left side of the evaporator 10 of the external heat pipe system is sequentially connected with a two-phase flow conveying pipe bundle 31 of the external heat pipe system, a gas-liquid separator 38 of the external heat pipe system, a gaseous working medium conveying pipe 7 of the external heat pipe system and a gaseous working medium main pipe 2 of the external heat pipe system;
the condenser 13 of the external heat pipe system recovers the cold energy of the air flowing out from the condenser 14 of the internal heat pipe system, so that the gas-liquid two-phase flow working medium entering the condenser 13 of the external heat pipe system from the gas working medium main pipe 2 of the external heat pipe system is totally condensed into liquid, the liquid enters the circulating solution pump 55 of the external heat pipe system through the condenser condensate conveying pipe 24 of the external heat pipe system under the action of gravity, the liquid is conveyed to the evaporator 10 of the external heat pipe system through the circulating solution conveying pipe 56 of the external heat pipe system after being pressurized, the liquid is uniformly separated and then conveyed to the evaporator 10 of the external heat pipe system through the equal-length liquid-sharing pipe 9 of the external heat pipe system, the heat in the fresh air or mixed air is absorbed and converted into the gas-liquid two-phase flow working medium, the gas-liquid two-phase flow working medium is conveyed to the gas main pipe 2 of the external heat pipe system through the gas working medium conveying pipe 7 of the external heat pipe system, thus forming a circulation and continuously realizing the recovery of cold energy.
The pre-cooling water system related by the embodiment comprises a main body structure of a 7 ℃/12 ℃ chilled water system, wherein the main body structure comprises a 7 ℃/12 ℃ chilled water system surface cooler 27, a pre-cooling air conditioner surface cooler flow regulating valve of the water system, an external cold source 36, a pre-cooling air conditioner surface cooler drain pipe of the water system and a pre-cooling air conditioner surface cooler water inlet pipe of the water system; the surface cooler 27 of the 7 ℃/12 ℃ chilled water system for heat exchange is arranged between the surface cooler 5 of the deep cold water and the evaporator 8 of the inner heat pipe subsystem, the pipeline of the surface cooler 27 of the 7 ℃/12 ℃ chilled water system is connected with an external cold source 36, and the pipeline is provided with a flow regulating valve of a precooling air-conditioning surface cooler of a water system for controlling; the external cold source 36 is connected with a chilled water pipeline of a workshop raw water system air conditioner, cold water supplied by the external cold source 36 enters the surface cooler 27 of the chilled water system at the temperature of 7 ℃/12 ℃ after the flow of the cold water is regulated by the flow regulating valve of the surface cooler of the precooling air conditioner to absorb heat so as to cool air in an air duct, the cold water is moderately heated and then returns to the external cold source 36 through a drain pipe of the surface cooler of the precooling air conditioner, and the cold water is cooled after heat release and then enters a refrigeration cycle of a; the flow regulating valve of the precooled air conditioner surface cooler regulates the flow to ensure the stability of enough refrigerating capacity and machine dew point and ensure the stability of drainage temperature at the same time, so that the water cooling unit of the external cold source 36 operates stably; the pre-cooling water system cools and dehumidifies the air from the evaporator 8 of the inner heat pipe subsystem to the dew point of the machine at 14 ℃, so as to realize primary dehumidification.
The main structure of the cryogenic water system related to the embodiment comprises a cryogenic water surface cooler 5, a cryogenic water surface cooler header pipe 15 of the cryogenic water system, a cryogenic air conditioner surface cooler drain pipe of the cryogenic water system, a cryogenic air conditioner surface cooler flow regulating valve, a plate heat exchanger 34 and an external cold source (-10 degrees/0 degrees glycol) 46; an external cold source (-10 DEG/0 DEG glycol) 46 is butted with a chilled water pipeline of a workshop raw water system air conditioner, cold water supplied by the external cold source enters the plate heat exchanger 34 after the flow of the cold water is regulated by a-10 DEG glycol backwater electric valve 47, the chilled water with 0 DEG/5 DEG is replaced and enters the deep cooling water surface cooler 5 to absorb heat so as to cool air in an air duct, the cold water is moderately heated and then returns to the plate heat exchanger 34 through a surface cooler drain pipe of the deep cooling air conditioner, and the cold water exchanges heat with the external cold source (-10 DEG/0 DEG glycol) 46 in the plate heat exchanger 34 to be cooled and then enters a refrigeration cycle of a deep cooling water subsystem; the flow of the ethylene glycol backwater electric valve 47 at the temperature of minus 10 ℃ is adjusted to ensure the stability of sufficient refrigerating capacity and air supply temperature and ensure the stability of drainage temperature, so that the water cooling unit of the plate heat exchanger 34 runs stably.
The main structure of the central control subsystem related to this embodiment includes an air supply temperature sensor 62 and an air supply temperature control signal line 63 which are arranged in the air conditioning box, and also includes a fresh air temperature sensor 64 which is arranged at the inlet of the fresh air intake duct 11, an external heat pipe evaporator rear temperature sensor 65 which is arranged at the right side of the equal-length liquid equalizing pipe 9 of the external heat pipe subsystem, an internal heat pipe evaporator rear temperature sensor 66 which is arranged at the right side of the equal-length liquid equalizing pipe 16 of the internal heat pipe subsystem, a precooling coil rear temperature sensor 67 which is arranged at the right side of the chilled water system surface cooler 27 at 7 ℃/12 ℃, a dew point temperature sensor 69 which is arranged at the right side of the deep cold water surface cooler header 15, and an internal heat pipe condenser rear temperature sensor 68 which is arranged; the central controller 53 changes the external heat discharge amount by controlling the opening of the flow regulating valve of the steam heating coil, so as to realize the regulation of the air supply temperature; then the dew point temperature is obtained by a fresh air temperature sensor 64, an outer heat pipe evaporator rear temperature sensor 65, an inner heat pipe evaporator rear temperature sensor 66, a dew point temperature sensor 69 and a dew point temperature signal transmission line 41 which are arranged in the air conditioner box body, the central controller 53 obtains the front and rear temperatures of the inner and outer composite two-phase flow heat pipe evaporators and condensers by a precooling coil rear temperature sensor 67, an inner heat pipe condenser rear temperature sensor 68 and corresponding temperature signal transmission lines which are arranged in the air conditioner box body, and the opening control of a precooling air conditioner surface cooler flow regulating valve and a 10 degree/0 degree deep cooling water surface cooler flow regulating valve of an inner and outer composite two-phase flow heat pipe cold recovery subsystem and a 7 degree/12 degree cooling water system is completed; the central control subsystem has the following effects: the automatic regulation and control of the air supply temperature and the dew point temperature are realized.
The steps of the air conditioning process for realizing energy-saving dehumidification and temperature regulation in the embodiment are as follows: the air to be treated sequentially passes through an evaporator 8 of an inner heat pipe subsystem of an inner and outer composite two-phase flow heat pipe cold recovery subsystem, an evaporator 10 of an outer heat pipe system and a surface cooler 27 of a chilled water system at the temperature of 7 ℃/12 ℃ for cooling, is then deeply cooled to the dew point temperature of a machine by a deep cold water surface cooler 5, is then removed of liquid water drops by a water baffle 4, and is sequentially heated to the air supply temperature by a condenser 13 of the outer heat pipe system of the inner and outer composite two-phase flow heat pipe cold recovery subsystem, a condenser 14 of the inner heat pipe subsystem and a steam heating coil 61, so that the air conditioning process of energy-saving dehumidification and temperature regulation; the central control subsystem controls the total refrigerating capacity and the dew point temperature by adjusting the opening degrees of a precooling air conditioner surface cooler flow regulating valve and a deep cooling water air conditioner surface cooler flow regulating valve of a water system to achieve the aim of humidifying, and controls the total heating capacity and the air supply temperature by adjusting the number of running machine sets of an internal and external composite two-phase flow heat pipe system and the opening degree of a steam heating coil flow regulating valve to achieve the aim of regulating the temperature; the starting and running processes of the air dehumidification and temperature regulation treatment are realized as follows: evacuating and filling a proper amount of working medium into the internal and external composite two-phase flow heat pipe cold energy recovery system, setting specific parameters of a dew point and an air supply temperature of the central control subsystem according to process requirements, starting the air supply fan 17, and then starting the pre-cooling water system and the deep cooling water system; after about 10 minutes, the internal and external composite heat pipe cold energy recovery subsystem is started, and after 20 to 60 minutes, the air supply temperature and the dew point temperature in the system reach set values and are in a stable working stage, so that low-humidity air meeting the requirements of the air supply temperature and the dew point temperature can be continuously, efficiently and energy-efficiently provided.
Claims (1)
1. An energy-saving multi-stage surface cooling deep dehumidification air treatment device is characterized by being divided into an internal and external composite two-phase flow heat pipe cold energy recovery system, a pre-cooling water system, a deep cooling water system and a central control four sub-system according to functions; the system comprises an internal heat pipe circulation subsystem, an external heat pipe circulation subsystem, an internal heat pipe circulation subsystem and an external heat pipe internal and external composite subsystem, wherein the internal and external composite two-phase flow heat pipe cold recovery subsystem is arranged in a structural form of internal heat pipe circulation and external heat pipe internal and external composite; the condenser of the inner heat pipe subsystem is arranged in front of the condenser of the outer heat pipe subsystem, and the evaporator of the inner heat pipe subsystem is arranged behind the evaporator of the outer heat pipe subsystem; the water baffle is arranged in front of the condenser of the inner heat pipe subsystem, the condenser of the inner heat pipe subsystem is connected with a circulating solution pump of the inner heat pipe subsystem through a condenser condensate conveying pipe of the inner heat pipe subsystem, the circulating solution pump of the inner heat pipe subsystem is connected with a liquid distributor of the inner heat pipe subsystem through a circulating solution conveying pipe of the inner heat pipe subsystem, the liquid distributor of the inner heat pipe subsystem is connected with an evaporator of the inner heat pipe subsystem through an equal-length liquid-equalizing pipe of the inner heat pipe subsystem, and the evaporator of the inner heat pipe subsystem is connected with the condenser of the inner heat pipe subsystem through a gaseous working medium conveying pipe of the inner heat pipe subsystem and a gaseous working medium main pipe of the; the circulating solution pump of the inner heat pipe subsystem is connected with a liquid distributor pipeline of the inner heat pipe subsystem through a circulating solution conveying pipe of the inner heat pipe subsystem, wherein the right side of an evaporator of the inner heat pipe subsystem is connected with the liquid distributor pipeline of the inner heat pipe subsystem through an equal-length liquid-equalizing pipe of the inner heat pipe subsystem, the left side of the equal-length liquid-equalizing pipe of the inner heat pipe subsystem is sequentially connected with a two-phase flow conveying pipe bundle of the inner heat pipe subsystem, a gas-liquid separator of the inner heat pipe subsystem, gaseous working medium conveying of the inner heat pipe subsystem and a gaseous working medium main pipe of the inner heat pipe subsystem, and an output end pipeline of the gaseous working medium main pipe of the inner;
the gaseous working medium main pipe of the external heat pipe system for conveying cold energy is connected with the upper end pipeline of the condenser of the external heat pipe system, the lower end of the condenser of the external heat pipe system is sequentially connected with a condenser condensate conveying pipe of the external heat pipe system, a liquid storage tank of the external heat pipe system, a circulating solution pump of the external heat pipe system, a circulating solution conveying pipe of the external heat pipe system, an evaporator of the external heat pipe system, an equal-length liquid-equalizing pipe of the external heat pipe system and an evaporator of the external heat pipe system, wherein the equal-length liquid-equalizing pipe of the external heat pipe system is positioned on the right side face of the evaporator of the external heat pipe system, and the evaporator of the external heat pipe system is positioned at a left opening of the air conditioner box body; the left side of the evaporator of the external heat pipe system is sequentially connected with a two-phase flow conveying pipe bundle of the external heat pipe system, a gas-liquid separator of the external heat pipe system, a gaseous working medium conveying pipe of the external heat pipe system and a gaseous working medium main pipe of the external heat pipe system;
the pre-cooling water system comprises a main body structure of a 7 ℃/12 ℃ chilled water system, and the main body structure comprises a 7 ℃/12 ℃ chilled water system surface cooler, a pre-cooling air conditioner surface cooler flow regulating valve of the water system, an external cold source, a pre-cooling air conditioner surface cooler water discharge pipe of the water system and a pre-cooling air conditioner surface cooler water inlet pipe of the water system; the surface cooler of the 7 ℃/12 ℃ chilled water system for heat exchange is arranged between the surface cooler of the deep cold water and the evaporator of the inner heat pipe subsystem, the pipeline of the surface cooler of the 7 ℃/12 ℃ chilled water system is connected with an external cold source, and the pipeline is provided with a flow regulating valve of a precooling air-conditioning surface cooler of a water system for controlling; the external cold source is connected with a chilled water pipeline of a workshop raw water system air conditioner;
the main structure of the cryogenic water system comprises a cryogenic water surface cooler, a cryogenic water surface cooler header pipe of the cryogenic water system, a cryogenic air conditioner surface cooler drain pipe of the cryogenic water system, a cryogenic air conditioner surface cooler flow regulating valve, a plate heat exchanger and an external cold source; an external cold source is in butt joint with a chilled water pipeline of a workshop raw water system air conditioner; the main structure of the central control subsystem comprises an air supply temperature sensor and an air supply temperature control signal line which are arranged in an air conditioner box, and further comprises a fresh air temperature sensor arranged at the inlet of a fresh air inlet duct, an outer heat pipe evaporator rear temperature sensor arranged on the right side of an equal-length liquid equalizing pipe of the outer heat pipe subsystem, an inner heat pipe evaporator rear temperature sensor arranged on the right side of the equal-length liquid equalizing pipe of the inner heat pipe subsystem, a precooling coil rear temperature sensor arranged on the right side of a surface cooler of a 7 ℃/12 ℃ chilled water system, a dew point temperature sensor arranged on the right side of a collecting pipe of a deep cold water surface cooler, and an inner heat pipe condenser rear temperature sensor arranged on the right side of a.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111189343A (en) * | 2020-03-02 | 2020-05-22 | 青岛科思德节能设备有限公司 | Split type intelligent two-phase flow heat exchange system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189343A (en) * | 2020-03-02 | 2020-05-22 | 青岛科思德节能设备有限公司 | Split type intelligent two-phase flow heat exchange system |
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