WO2019218840A1

WO2019218840A1 - Flow-state ice evaporator and air-conditioning system using same

Info

Publication number: WO2019218840A1
Application number: PCT/CN2019/083397
Authority: WO
Inventors: 钱志博; 郝宏伟; 杜强; 程港; 孙厚东
Original assignee: 中机十院国际工程有限公司
Priority date: 2018-05-17
Filing date: 2019-04-19
Publication date: 2019-11-21
Also published as: CN108571842A; CN108571842B

Abstract

The present invention provides a flow-state ice evaporator, comprising an evaporator housing, a motor, a transmission box, an upper partitioning plate, a lower partitioning plate, baffling plates, and a top supporting plate. A plurality of baffling holes are formed in a half of the area of each baffling plate in the evaporator hosing, and the hole-forming area of an adjacent baffling plate is provided in the area of the adjacent baffling plate adjacent to the other half of said baffling plate. A liquid-state refrigerant flows in the evaporator housing in zigzag fashion. The flow-state ice evaporator is applied to an air-conditioning system. The air-conditioning system comprises a user-end circulation loop, a refrigerant circulation loop, an outer-end water circulation loop, a first two-position four-way valve component, and a second two-position four-way valve component. The air-conditioning system obtains heat from water solidification heat which is 80 times of the water sensible heat, overcomes the defects of existing heat pump systems to implements a revolutionary progress of the heat pump systems, and saves the air-conditioning system running costs to the greatest extent.

Description

Fluid ice evaporator and air conditioning system using the same

Technical field

The present invention relates to a novel energy supply system, and more particularly to a fluid ice evaporator and an air conditioning system using the fluid ice evaporator.

Background technique

Energy and the environment are two major problems facing humanity today. At present, fossil fuels are the main source of energy for human production and life. With the growth of global energy use and unscientific use, non-renewable energy sources such as fossil fuels will become increasingly depleted and have a serious impact on the environment. China is experiencing the aftermath of rapid economic development. Environmental pollution mainly includes air pollution, water pollution and soil pollution. In recent years, with the increasing attention of PM2.5 and smog, air pollution has become the focus of attention of the Chinese people. A revolution without coalification is underway in northern China

As a clean renewable energy technology, heat pumps play an important role in the heating industry, and traditional heat pump technology has its own limitations:

Air energy (source) heat pumps are greatly affected by air temperature, and are widely used in southern China. But it is plagued by frosting problems. North applications are less energy efficient.

The technology uses the coagulation heat of water to take heat, which will be 80 times of the sensible heat of water, which will overcome the shortcomings of the above heat pump system and realize the revolutionary progress of the heat pump system.

Chinese Patent No. CN1731048A (Application No. 200510044164.5) discloses a refrigerating heat exchanger for producing fluid ice, which has the following disadvantages:

1. The transmission mechanism is too complicated and the transmission efficiency is lower;

2. The mixed solution of ice slurry is easy to form ice block at the exit;

3. The refrigerant is unevenly distributed in the casing, causing local over-cooling or icing to be severe, making the flow ice unstable and uneven ice formation.

4. There is no thrust limit device at the lower end of the stir bar, which will cause the stir bar to swing laterally and cause damage to the pipe wall.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the shortcomings of the existing fluid ice refrigeration heat exchanger, and to provide a fluid ice evaporator and an air conditioning system using the fluid ice evaporator, the invention can utilize the rivers and lakes The water source is discharged in the form of a mixture of ice and water, which greatly reduces the water consumption of the heat pump. This technology is a revolution of the heat pump system.

The fluid ice evaporator of the invention adopts the supercooling technology, and cools a certain concentration of the solution to a certain degree of subcooling temperature, and forms ice crystals in the solution by using the ice forming phenomenon of the salt solution, and the following describes the ice forming phenomenon. The principle.

As shown in Fig. 1, it is a solution concentration phase equilibrium diagram. In the figure, the abscissa indicates the solution concentration, the ordinate indicates the temperature, WE is the precipitation line, EG is the precipitation line, and point E is the eutectic point.

1. The ice-dissolving line and the salt-dissolving line are solution zones; the area between the TE line and the ice-dissolving line is the ice + solution coexistence zone; the area between the TE line and the salt-dissolving line is the solute + saturated solution coexistence zone; The line on the line and the salt line is the solution zone; the lower part of the TE line is the solid coexistence zone of ice + solute.

2. The solution of each concentration corresponds to the precipitation temperature of an ice crystal (water ice), and the ice crystal can be continuously precipitated when the temperature of the solution falls to the ice-precipitation temperature.

3. When the solution precipitates ice crystals, the heat is released, so that the temperature of the solution is slightly increased, and the temperature of the solution is also slightly increased. The particularity of the solution during the precipitation of the ice crystal makes the solution not easily adhere to the ice making pipeline during the ice crystal precipitation process.

4, the flow ice unit can be used as a salt (sea water, NaCl salt solution, etc.), alcohol (methanol, ethanol, glycerol, propylene glycol, ethylene glycol solution, etc.)

According to the nature of ethylene glycol, the technology uses ethylene glycol as a brine carrier. At this time, the entire circulating ethylene glycol solution is in a solid-liquid mixed state. When the mixed solution flows through a large volume storage tank, the solution The ice crystals naturally float up to achieve the purpose of separating the ice crystals from the ethylene glycol solution.

In order to solve the above technical problems, the technical solution adopted by the fluid ice evaporator of the present invention is as follows:

A fluid ice evaporator of the present invention, wherein: the fluid ice evaporator comprises: an evaporator casing, a motor, a transmission, an upper partition, a lower partition, a baffle and a top support plate, A motor is arranged on the top of the evaporator casing, and a top support plate and an upper partition plate are arranged in the upper part of the evaporator casing from top to bottom. The space between the top support plate and the upper partition plate is a fluid ice chamber. The lower part of the evaporator casing is provided with a lower partition, and the space partitioned between the lower partition and the lower part of the evaporator casing is a liquid brine chamber, and the upper partition and the lower partition along the height direction of the evaporator casing A plurality of baffles are arranged between the plurality of tubes in the evaporator casing space between the upper partition and the lower partition, and the tubes pass through the upper partition and several baffles in order from top to bottom. And a lower partition plate, the upper end of which communicates with the fluid ice chamber, the lower end communicates with the liquid brine chamber, and a spiral stirring shaft is arranged in each of the tubes, and the upper end of the spiral stirring shaft passes through the top support plate and passes through the transmission device Driven by the motor, the lower end of the agitator shaft is supported at the lower end of the evaporator housing A liquid brine inlet is opened on the evaporator casing of the liquid brine chamber, and a fluid ice mixed solution outlet is opened on the evaporator shell of the fluid ice chamber, and the lowermost baffle and the lower partition A liquid refrigerant inlet is formed between the evaporator casing, and a vaporous refrigerant outlet is opened on the evaporator casing between the upper partition and the uppermost baffle, and the liquid refrigerant flows in a zigzag shape in the evaporator casing. , wherein: a plurality of baffles are opened in a region of one half of each baffle in the evaporator casing, and an opening region of the adjacent baffles is opened on the baffle adjacent thereto In one half of the area, the gap between the spiral agitator shaft and the wall of the tube tube is 5-10 cm, the rotation speed of the screw agitating shaft is 500 rpm to 600 rpm, the screw agitator shaft is a screw, and the screw is spiraled. Angle 40-50 °, the number of heads of the screw is 6-10;

The fluid ice evaporator of the present invention, wherein: the outlet of the fluid ice mixed solution protrudes into the fluid ice chamber, and communicates with the fluid ice chamber through the ice blocking bell mouth, and the ice blocking bell mouth The angle of the angle is 20 ° - 30 °;

A fluid ice evaporator of the present invention, wherein: the transmission device comprises: a driving wheel, a driven wheel, a transmission wheel and a plurality of agitating gears, and a stirring gear is arranged at an upper end of each of the spiral stirring shafts, and the motor drives the active The wheel rotates, the driving wheel meshes with the driven wheel, the driven wheel and the transmission wheel are mounted on the same rotating shaft, the transmission wheel meshes with a stirring gear installed in the center of the evaporator casing, the agitating gear meshes with its adjacent agitating gear, and so on, The drive wheel drives the agitating gears in all evaporator housings to rotate;

A fluid ice evaporator of the present invention, wherein: the baffles are evenly distributed along the height direction of the evaporator casing, and the number thereof is 5-20;

A fluid ice evaporator of the present invention, wherein: the bottom end of the spiral stirring shaft is mounted on the lower end of the evaporator casing by a stirrer thrust limiter, and the column pipes are evenly distributed in the evaporator casing space;

An air conditioning system using a fluid ice evaporator of the present invention, wherein: the fluid ice evaporator is applied in an air conditioning system, the air conditioning system comprising: a user end circulation loop, a refrigerant circulation loop, an outer end water circulation loop, and a A two-position four-way valve assembly and a second two-position four-way valve assembly, the first two-position four-way valve assembly and the second two-position four-way valve assembly include: four two-way valves, wherein two sets of two-way valves are connected in parallel Together, each group of two-way valves is connected in series by two two-way valves. The two two-way valves of each group of two-way valves are respectively d-end and c-end, and the two ends of the two-position two-way valves are respectively a-end. And the b-end, the outer-end circulation includes: a two-way valve between one side of the condenser, the d end of the first two-position four-way valve assembly, and the a end of the first two-position four-way valve assembly, the river and the river a two-way valve between the segment, the second pump, and the a-end of the second two-position four-way valve assembly and the d-end of the second two-position four-way valve assembly are sequentially connected in series to form a water cycle; the refrigerant circulation circuit includes: One side of the fluid ice evaporator, the other side of the compressor, the condenser, and the expansion valve are sequentially connected in series to form a refrigerant. a circuit; one side of the condenser and the other side of the condenser are coupled to each other in the condenser, and the user end circulation circuit includes: the other side of the fluid ice evaporator, the c end of the first two-position four-way valve assembly, and a two-way valve between the b-end of the first two-position four-way valve assembly, the first pump, the customer end, and the b-end of the second two-position four-way valve assembly and the c-end of the second two-position four-way valve assembly The two-way valve is sequentially connected in series to form a customer end circulation loop, and one side of the fluid ice evaporator and the other side of the fluid ice evaporator are coupled to each other in the fluid ice evaporator;

An air conditioning system using a fluid ice evaporator of the present invention, wherein: a cooling tower is further connected at both ends of the river and the sea, and a first two-way valve and a second two-way are respectively installed at two ends of the cooling tower valve;

An air conditioning system using a fluid ice evaporator of the present invention, wherein the solution flowing in the circulation loop of the user end is seawater, NaCl salt solution, methanol, ethanol, glycerol, propylene glycol or ethylene glycol solution, the above solution The freezing point is less than 0 ° C;

An air conditioning system using a fluid ice evaporator of the present invention, wherein: the river and lake sections are water taken from rivers, rivers, lakes or seas.

After adopting the above technical solution, the fluid ice evaporator of the present invention has the following advantages:

1. The advanced transmission mechanism avoids the complexity and the transmission efficiency is higher.

2. The mixed solution containing the ice slurry does not easily form an ice block at the outlet having a bell mouth shape.

3. The baffle plate in the form of orifice plate not only ensures the over-flow area, but also distributes the refrigerant evenly around the tube bundle, avoids the phenomenon of local over-cooling and icing, and makes the flow state more stable and uniform ice-forming. .

4. The lower end of the stirring rod is equipped with a thrust limiting device to effectively avoid damage to the column wall caused by the lateral swing of the stirring rod.

The fluid ice evaporator of the present invention and the air conditioning system using the fluid ice evaporator will be further described below with reference to the accompanying drawings.

DRAWINGS

Figure 1 is a phase equilibrium diagram of solution concentration;

Figure 2 is a schematic cross-sectional view of a fluid ice evaporator;

Figure 3 is a schematic cross-sectional view of Figure 2A-A;

Figure 4 is a schematic view showing the enlargement of the spiral stirring shaft of Figure 2;

Figure 5 is a schematic view of an air conditioning system using the fluid ice evaporator;

Figure 6 is a schematic view of the air conditioner of Figure 4 when it is heated in winter;

Figure 7 is a schematic view of the air conditioner of Figure 4 when it is cooled in summer.

In Fig. 2, Fig. 3 and Fig. 4, the reference numeral 1 is the outlet of the fluid ice mixed solution; the reference numeral 2 is the anti-ice blocking bell mouth; the reference numeral 3 is the motor; the reference numeral 4 is the transmission device; the reference numeral 5 is the spiral stirring shaft; The evaporator housing; the reference numeral 7 is the top support plate; the reference numeral 8 is the fluid ice chamber; the reference numeral 9 is the upper partition; the reference numeral 10 is the column tube; the reference numeral 11 is the baffle; the reference numeral 12 is the baffle hole; a liquid refrigerant inlet; reference numeral 14 is a lower partition; numeral 15 is a stirrer thrust limiter; numeral 16 is a liquid brine inlet; numeral 17 is a liquid brine chamber; and numeral 18 is a gaseous refrigerant outlet; Reference numeral 19 is a driving wheel; 20 is a stirring gear; 21 is a driving wheel; and 22 is a driven wheel;

In FIG. 4 to FIG. 6 , reference numeral 101 is a user end circulation loop; reference numeral 102 is a refrigerant circulation loop; reference numeral 103 is an outer end water circulation loop; reference numeral 104 is a river and a river section; and reference numeral 105A is a first two-way valve; 105B is the second two-way valve; reference numeral 106 is the first pump; numeral 107 is the user end; numeral 108 is the second pump; numeral 109 is the cooling tower; numeral 110 is the compressor; numeral 111 is the condenser; State ice evaporator; reference numeral 113 is an expansion valve; reference numeral 114 is a first two-position four-way valve assembly; and reference numeral 115 is a second two-position four-way valve assembly.

Detailed ways

As shown in FIG. 2, the fluid ice evaporator 112 of the present invention comprises: an evaporator casing 6, an electric motor 3, a transmission 4, an upper partition 9, a lower partition 14, a baffle 11 and a top support plate 7, which are evaporated. The top of the casing 6 is provided with a motor 3, and in the upper portion of the evaporator casing 6, a top support plate 7 and an upper partition plate 9 are sequentially arranged from top to bottom, and a space between the top support plate 7 and the upper partition plate 9 flows. The ice chamber 8 is provided with a lower partition 14 in a lower portion of the evaporator casing 6, and a space partitioned between the lower partition 14 and the lower portion of the evaporator casing 6 is a liquid brine chamber 17 along the evaporator casing. A plurality of baffles 11 are disposed between the upper partition 9 and the lower partition 14 of the height direction of the sixth portion, and a plurality of tubes are disposed in the space of the evaporator casing 6 between the upper partition plate 9 and the lower partition plate 14. 10, the column tube 10 passes through the upper partition plate 9, the plurality of baffles 11 and the lower partition plate 14 in order from top to bottom, the upper ends of which are in communication with the flow ice chamber 8, and the flow ice mixed solution outlet 1 is extended. The flow ice chamber 8 is connected to the flow ice chamber 8 through the ice blocking bell mouth 2, and the angle of the ice blocking bell mouth 2 is 20°-30°. The lower end is in communication with the liquid brine chamber 17, and a spiral agitating shaft 5 is arranged in each of the tubes 10, and the upper end of the spiral agitating shaft 5 passes through the top support plate 7 and is driven by the motor 3 through the transmission 4, the screw agitating shaft 5 The lower end is supported at the lower end of the evaporator casing 6, and a liquid brine inlet 16 is opened in the evaporator casing 6 of the liquid brine chamber 17, and a fluid state is formed in the evaporator casing 6 of the fluid ice chamber 8. The ice mixed solution outlet 1 has a liquid refrigerant inlet 13 on the evaporator casing 6 between the lowermost baffle 11 and the lower partition 14, between the upper partition 9 and the uppermost baffle 11 The evaporator casing 6 is provided with a gaseous refrigerant outlet 18, and a plurality of baffles 12 are formed in a region of one half of each baffle 11 in the evaporator casing 6, and the adjacent baffles 11 are opened. The hole region is opened in the other half of the baffle 11 adjacent thereto, and the liquid refrigerant flows in a zigzag shape in the evaporator casing 6. The baffles 11 are evenly distributed along the height direction of the evaporator casing 6, and the number thereof is 5-20, and the bottom end of the spiral agitating shaft 5 is attached to the lower end of the evaporator casing 6 through a stirrer thrust stopper 15. The tubes 10 are evenly distributed within the space of the evaporator housing 6.

As shown in FIG. 2, FIG. 3 and FIG. 4, the transmission device 4 includes: a driving wheel 19, a driven wheel 22, a transmission wheel 21 and a plurality of agitating gears 20. A stirring gear 20 is mounted on the upper end of each of the agitating shafts 5, the motor 3 drives the driving wheel 19 to rotate, the driving wheel 19 meshes with the driven wheel 22, the driven wheel 22 and the transmission wheel 21 are mounted on the same rotating shaft, and the transmission wheel 21 meshes with the stirring gear 20 installed at the center of the evaporator casing 6, the agitating gear 20 Engaged with its adjacent agitating gear 20, and so on, the transmission wheel 21 drives all the agitating gears 20 in the evaporator casing 6 to rotate, and the gap between the helical agitating shaft 5 and the wall of the tube 10 is 5-10 cm, and the screw is stirred. The rotation speed of the shaft 10 is 500 rpm to 600 rpm, and the screw agitating shaft 10 is a screw having a helix angle of 40-50°, and the number of the head of the screw is 6-10.

The principle of making ice slurry: controlling the flow rate of the refrigerant and the evaporation temperature, so that the refrigerant is evaporated in the flow ice evaporator 112 at a temperature of about -3 ° C, and the heat is exchanged with the solution in the tube process. 10 ice crystals are precipitated in the surface. The agitating rod has two functions. One is to generate centrifugal force during the rotation process, wash the surface of the column 10 to wash the ice crystals on the surface of the evaporator tube 10; the second is to stir the rod into a screw shape, in addition to the centrifugal force, There is an upward thrust, and after the centrifugal flushing, the mixed solution is lifted into the fluid ice chamber 8 as soon as possible to avoid condensation on the inner surface of the tube 10.

As shown in FIG. 5, the fluid ice evaporator 112 of the present invention is applied in an air conditioning system, which includes: a user end circulation loop 101, a refrigerant circulation loop 102, an outer end water circulation loop 103, and a first two-position four-way The valve assembly 114 and the second two-position four-way valve assembly 115, the first two-position four-way valve assembly 114 and the second two-position four-way valve assembly 115 include: four two-way valves, wherein the two sets of two-way valves are connected in parallel Each set of two-way valve is connected in series by two two-way valves. The two two-way valves of each group of two-way valves are respectively d-end and c-end, and the two ends of the two-position two-way valve are respectively a-end and At the b-end, the outer-end water circulation circuit 103 includes a two-way valve between one side of the condenser 111, the d-end of the first two-position four-way valve assembly 114, and the a-end of the first two-position four-way valve assembly 114. The outer end water circulation of the river and the river section 104, the second pump 108 and the two-way valve between the a end of the second two-position four-way valve assembly 115 and the d-end of the second two-position four-way valve assembly 115 In the circuit, a cooling tower 109 is further connected in parallel at both ends of the river and lake section 104, and two-way valves 105 are respectively installed at both ends of the cooling tower 109; the refrigerant is recycled back The path 115 includes a refrigerant circulation circuit composed of one side of the fluid ice evaporator 112, the compressor 110, the other side of the condenser 111, and the expansion valve 113 in sequence; one side of the condenser 111 and the other of the condenser 111 One side is coupled to each other within a condenser 111, and the customer end circulation circuit 101 includes: the other side of the fluid ice evaporator 112, the c-end of the first two-position four-way valve assembly 114, and the first two-position four-way valve assembly The two-way valve between the b-end of 114, the first pump 106, the customer end 107, and the second end of the second two-position four-way valve assembly 115 and the second end of the second two-position four-way valve assembly 115 A user end circulation loop is formed in sequence by the valve, one side of the flow ice evaporator 112 and the other side of the flow ice evaporator 112 are coupled to each other within the flow ice evaporator 112.

The solution flowing in the user end circulation circuit 101 is seawater, a NaCl salt solution, methanol, ethanol, glycerol, propylene glycol or ethylene glycol solution, and the freezing point of the above solution is less than 0 °C. The rivers and lakes section 104 is water taken from rivers, rivers, lakes or seas.

In the winter, in the air conditioning system of the present invention, the cooling tower 109 does not operate, the air conditioning system is simplified to a schematic diagram as shown in FIG. 6, and the customer end circulation circuit 101 includes one side of the condenser 111 and is located at the first two-position four-way valve. A two-way valve between the d-end of the assembly 114 and the b-end of the first two-position four-way valve assembly 114, the first pump 106, the customer end 107, and the b-end and the second at the second two-position four-way valve assembly 115 The two-way valve between the d-ends of the two-position four-way valve assembly 115 sequentially constitutes a customer end circulation loop; the outer end water circulation loop 103 includes: the other side of the fluid ice evaporator 112, located at the first two-position four-way A two-way valve between the c-end of the valve assembly 114 and the a-end of the first two-position four-way valve assembly 114, the river section 104, the second pump 108, and the a-end of the second two-position four-way valve assembly 115 The two-way valve between the c-end of the second two-position four-way valve assembly 115 sequentially constitutes an outer end water circulation circuit. The impurity-containing fluid in the rivers and lakes is sent to the other side of the fluid ice evaporator 112 by a second pump 108, which is specially designed to take heat on one side of the flow ice evaporator 112. Thereafter, a mixed fluid of ice crystals and a solution is formed on the other side of the fluid ice evaporator 112, and the fluid can be directly discharged through the pipeline or into the river and lake section 104. On one side of the condenser 111, the low temperature water returned by the user end 107 is heated to the required heating temperature, and then sent to the user terminal 107 by the first pump 106 to realize the heating cycle.

In the summer, the air conditioning system is simplified to a schematic diagram as shown in FIG. 7. The customer end circulation circuit 101 includes the other side of the fluid ice evaporator 112, the c-end and the first two positions of the first two-position four-way valve assembly 114. The two-way valve between the b-end of the four-way valve assembly 114, the first pump 106, the customer end 107, and the b-end of the second two-position four-way valve assembly 115 and the c-end of the second two-position four-way valve assembly 115 The two-way valve between the two ends constitutes a user end circulation loop; the outer end water circulation circuit 103 includes: one side of the condenser 111, the d end of the first two-position four-way valve assembly 114, and the first two-position four-way valve The two-way valve between the a ends of the assembly 114, the river section 104, the second pump 108, and the a-end of the second two-position four-way valve assembly 115 and the d-end of the second two-position four-way valve assembly 115 The two-way valve is composed of an outer end water circulation loop, and a cooling tower 109 is further connected in parallel at both ends of the river and river section 104, and two-way valves 105 are respectively installed at both ends of the cooling tower 109. The fluid of the river and lake section 104 is sent to one side of the condenser 111 through the second pump 108, and is absorbed by the condenser 111 side and then discharged to the rivers and lakes through the pipeline. If the amount of heat sources such as rivers, lakes and seas is insufficient, Cooling tower 109 can be enabled to dissipate heat. On the other side of the evaporator of the flow ice heat pump 112, the hot water flowing back from the user end 107 is cooled to the required cooling temperature, and then sent to the customer terminal 107 through the first pump 106 to effect a refrigeration cycle.

The above-described variations of Figs. 6 and 7 are all accomplished by the switches of the two-way valves in the first two-position four-way valve assembly 114 and the second two-position four-way valve assembly 115. Figures 6 and 7 are simplified from Figure 5.

The embodiments described above are only intended to describe the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various embodiments of the present invention may be made by those skilled in the art without departing from the spirit of the invention. Modifications and improvements are intended to fall within the scope of the invention as defined by the appended claims.

Claims

A fluid ice evaporator (112) comprising: an evaporator casing (6), a motor (3), a transmission (4), an upper partition (9), a lower partition (14), and a baffle ( 11) and a top support plate (7), a motor (3) is mounted on the top of the evaporator casing (6), and a top support plate (7) is installed in the upper part of the evaporator casing (6) from top to bottom. The upper partition (9), the space between the top support plate (7) and the upper partition (9) is a fluid ice chamber (8), and a lower partition is arranged in a lower portion of the evaporator casing (6) ( 14), the space between the lower partition (14) and the lower portion of the evaporator casing (6) is a liquid brine chamber (17), and an upper partition along the height direction of the evaporator casing (6) (9) Between the lower partition (14) and a plurality of baffles (11), a plurality of grooves are arranged in the space of the evaporator casing (6) between the upper partition (9) and the lower partition (14) The tube (10), the column tube (10) sequentially passes through the upper partition plate (9), the plurality of baffles (11) and the lower partition plate (14) from top to bottom, and the upper end thereof and the fluid ice chamber (8) communicating, the lower end is in communication with the liquid brine chamber (17), and a spiral stirring shaft (5) is arranged in each of the tubes (10), and the upper end of the spiral stirring shaft (5) passes through the top support plate (7) Pass through The moving device (4) is driven by the motor (3), and the lower end of the screw agitating shaft (5) is supported at the lower end of the evaporator casing (6), and is opened on the evaporator casing (6) of the liquid brine chamber (17). There is a liquid brine inlet (16), and a fluid ice mixed solution outlet (1) is opened on the evaporator casing (6) of the fluid ice chamber (8), at the lowermost baffle (11) and The evaporator casing (6) between the lower partitions (14) is provided with a liquid refrigerant inlet (13), and an evaporator casing (6) between the upper partition (9) and the uppermost baffle (11). a gas refrigerant outlet (18) is opened, and the liquid refrigerant flows in a zigzag shape in the evaporator casing (6), characterized by: each baffle (11) in the evaporator casing (6) In one half of the area, there are several baffles (12), and the opening area of the adjacent baffles (11) is opened in the other half of the baffle (11) adjacent thereto, and the screw is stirred. The gap between the shaft (5) and the tube wall of the tube (10) is 5-10 cm, the rotation speed of the screw stirring shaft (5) is 500 rpm to 600 rpm, and the screw stirring shaft (5) is a screw rod. The helix has a helix angle of 40-50°, and the number of heads of the helix is 6-10.
The fluid ice evaporator (112) according to claim 1, wherein the flow ice mixed solution outlet (1) extends into the fluid ice chamber (8) and passes through the ice blocking bell mouth. (2) It is connected with the fluid ice chamber (8), and the angle of the ice blocking bell mouth (2) is 20°-30°.
A fluid ice evaporator (112) according to claim 2, wherein said transmission (4) comprises: a driving wheel (19), a driven wheel (22), a transmission wheel (21) and a plurality of The agitating gear (20) is equipped with a stirring gear (20) at the upper end of each of the spiral stirring shafts (5), the motor (3) drives the driving wheel (19) to rotate, and the driving wheel (19) meshes with the driven wheel (22). The driven wheel (22) and the transmission wheel (21) are mounted on the same rotating shaft, and the transmission wheel (21) is meshed with a stirring gear (20) installed at the center of the evaporator casing (6), and the agitating gear (20) is adjacent thereto The agitating gear (20) is engaged, and so on, the drive wheel (21) drives the agitating gears (20) in all of the evaporator casings (6) to rotate.
A fluid ice evaporator (112) according to claim 3, wherein said baffles (11) are evenly distributed along the height direction of the evaporator casing (6), the number of which is 5-20 .
The fluid ice evaporator (112) according to claim 4, characterized in that the bottom end of the screw agitator shaft (5) is mounted on the evaporator casing (6) via a stirrer thrust limiter (15) At the lower end, the tubes (10) are evenly distributed within the evaporator housing (6) space.
An air conditioning system using the fluid ice evaporator (112) according to claim 5, the air conditioning system comprising: a customer end circulation loop (101), a refrigerant circulation loop (102), an outer end water circulation loop (103), A two-position four-way valve assembly (114) and a second two-position four-way valve assembly (115), a first two-position four-way valve assembly (114) and a second two-position four-way valve assembly (115) include: four The two-way valve, wherein the two sets of two-way valves are connected in parallel, each set of two-way valves is connected in series by two two-way valves, and the two two-way valves of each group of two-way valves are respectively d-end and c-end, The two ends of the two-position two-way valve are respectively a end and b end, and the outer end water circulation circuit (103) comprises: one side of the condenser (111), and the first two-position four-way valve assembly (114). a two-way valve between the d-end and the a-end of the first two-position four-way valve assembly (114), the river section (104), the second pump (108), and the second two-position four-way valve assembly The two-way valve between the a end of (115) and the d end of the second two-position four-way valve assembly (115) is sequentially connected in series to form an outer end water circulation circuit; the refrigerant circulation circuit (115) includes: One side of the evaporator (112), The compressor (110), the other side of the condenser (111) and the expansion valve (113) are sequentially connected in series to form a refrigerant circulation circuit; one side of the condenser (111) and the other side of the condenser (111) are The condenser (111) is coupled to each other, and the customer end circulation circuit (101) includes: on the other side of the fluid ice evaporator (112), at the (c) end of the first two-position four-way valve assembly (114) and a two-way valve between the b-end of the first two-position four-way valve assembly (114), a first pump (106), a customer end (107), and a b-end located at the second two-position four-way valve assembly (115) The two-way valve between the c-ends of the second two-position four-way valve assembly (115) is sequentially connected in series to form a customer end circulation loop, one side of the flow ice evaporator (112) and the flow ice evaporator (112) The other side is coupled to each other within the fluid ice evaporator (112).
The air conditioning system according to claim 6, characterized in that a cooling tower (109) is further connected at both ends of the river and river section (104), and a first two-way is respectively installed at both ends of the cooling tower (109). Valve (105A) and second two-way valve (105B).
The air conditioning system according to claim 7, wherein the solution flowing in the user end circulation circuit (101) is seawater, a NaCl salt solution, methanol, ethanol, glycerin, propylene glycol or ethylene glycol solution, The freezing point of the solution is less than 0 °C.
The air conditioning system according to claim 8, wherein said river (10) is a water taken from a river, a river, a lake or a sea.