Magnetic suspension water vapor compressor unit with injection water spraying function

Abstract

The utility model belongs to the technical field of steam compressors, and discloses a magnetic suspension steam compressor unit with an ejection water spraying function, which comprises a magnetic suspension steam compressor, a heat exchanger and a flash tank which are connected in series, and a steam ejector is simultaneously connected between the magnetic suspension steam compressor and the heat exchanger in series. A first one-way valve is connected between one end of the flash tank and the heat exchanger in series, one end of the heat exchanger is further communicated with a conveying pipeline, and a second one-way valve is connected to the conveying pipeline in series. The device is simple in overall structure, can further improve the energy utilization rate and reduce energy consumption in the application process of the magnetic suspension steam compressor, can fully gasify condensate water during recycling, prevents bubbles generated by the condensate water from entering the magnetic suspension steam compressor to impact and damage an impeller, and improves the using effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of steam compressors, and in particular relates to a magnetic suspension water steam compressor unit with an ejector water spray. Background Art

[0002] like Figure 1 As shown, a commonly used magnetic levitation water vapor compressor unit is composed of a magnetic levitation water vapor compressor 100, a heat exchanger 200, and a flash tank 300. The high-temperature and high-pressure steam generated by the magnetic levitation water vapor compressor is converted into condensed water through the heat exchanger 200. The generated condensed water carries 30% of the heat energy in the original steam state. The condensed water is mixed with the flash steam through a one-way valve, and the heat energy in the condensed water is recovered and reused. However, when the condensed water pressure is lower than the saturated steam pressure, bubbles will form. The bubbles will impact the impeller of the magnetic levitation water vapor compressor 100, causing unstable rotation, causing damage to the impeller and volute, affecting the suspension state of the magnetic levitation water vapor compressor 100, and reducing the efficiency of the magnetic levitation water vapor compressor 100. Utility Model Content

[0003] The main technical problem to be solved by the utility model is to provide a magnetic levitation water vapor compressor unit with induced water spray, which has a simple overall structure and can further improve energy utilization and reduce energy consumption during the application of the magnetic levitation water vapor compressor. When recycling, it can fully vaporize the condensed water to avoid bubbles generated by the condensed water entering the magnetic levitation water vapor compressor and impacting and damaging the impeller, thereby improving the use effect.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A magnetic levitation water vapor compressor unit with ejector water spray comprises a magnetic levitation water vapor compressor, a heat exchanger and a flash tank connected in series, a steam ejector connected in series between the magnetic levitation water vapor compressor and the heat exchanger, the steam ejector being connected to both ends of the magnetic levitation water vapor compressor, a first one-way valve being connected in series between one end of the flash tank and the heat exchanger, a delivery pipeline being further connected at one end of the heat exchanger, and a second one-way valve being connected in series on the delivery pipeline.

[0006] The following is a further optimization of the above technical solution by the present invention:

[0007] A compressor inlet is provided at one end of the magnetic levitation water vapor compressor, and a compressor outlet is provided at the other end of the magnetic levitation water vapor compressor.

[0008] Further optimization: a first heat exchanger inlet and a second heat exchanger inlet are provided at one end of the heat exchanger, and a first heat exchanger outlet and a second heat exchanger outlet are provided at the other end of the heat exchanger.

[0009] Further optimization: a first inlet is provided on one side of the flash tank, a second inlet is provided on the other side of the flash tank, a flash steam outlet is provided at one end of the flash tank, and a condensed water outlet is provided at the other end of the flash tank.

[0010] Further optimization: one end of the steam ejector is provided with a steam extraction medium inlet, the other end of the steam ejector is provided with an exhaust port, and one side of the steam ejector is provided with a working steam inlet.

[0011] Further optimization: the compressor outlet is connected to an inlet of the heat exchanger, the compressor outlet is also connected to the working steam inlet, the compressor inlet is connected to the flash steam outlet, and the exhaust port of the steam ejector is also connected to the compressor inlet.

[0012] Further optimization: the first outlet of the heat exchanger is connected to the steam-extracted medium inlet of the steam ejector, and the second outlet of the heat exchanger is connected to the second inlet of the flash tank.

[0013] Further optimization: the condensed water outlet of the flash tank is connected to the second inlet of the heat exchanger.

[0014] The present invention adopts the above technical solution, which is ingenious in conception and reasonable in structure. A steam ejector is connected to the compressor outlet of the magnetic levitation water vapor compressor, so that part of the steam flows directly into the steam ejector as working steam. The high-speed airflow generated by the injection of a very small amount of high-temperature and high-pressure steam is used to send condensed water into the steam ejector, and the low-temperature and low-pressure condensed water is converted into high-pressure and high-temperature flash steam. The condensed water is sent to the magnetic levitation water vapor compressor together with the flash steam from the flash tank, and the heat energy in the low-temperature and low-pressure condensed water is reused. Compared with the previous method of directly sending the condensed water into the magnetic levitation water vapor compressor, the addition of the steam ejector will fully vaporize the formed condensed water. The steam ejector can avoid the generation of bubbles in the condensed water, thereby preventing the bubbles from entering the magnetic levitation water vapor compressor, impacting and damaging the impeller, making the magnetic levitation water vapor compressor unstable, and reducing the efficiency of the magnetic levitation water vapor compressor. The steam ejector can make the condensed water fully generate flash steam, which is mixed with the flash steam generated in the flash tank and enters the inlet of the magnetic levitation water vapor compressor, thereby improving the efficiency of the magnetic levitation water vapor compressor, avoiding surge of the magnetic levitation water vapor compressor, improving the stability of the magnetic levitation water vapor compressor, improving energy utilization, and reducing the energy consumption of the entire system.

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a commonly used magnetic levitation water vapor compressor unit in an embodiment of the present utility model;

[0017] Figure 2It is a schematic diagram of the overall structure in an embodiment of the present utility model.

[0018] In the figure: 100-magnetic levitation water vapor compressor; 101-compressor inlet; 102-compressor outlet; 200-heat exchanger; 201-heat exchanger first inlet; 202-heat exchanger first outlet; 203-heat exchanger second inlet; 204-heat exchanger second outlet; 300-flash tank; 301-flash steam outlet; 302-condensed water outlet; 303-first inlet; 304-second inlet; 1-steam ejector; 11-steam extracted medium inlet; 12-working steam inlet; 13-exhaust outlet; 2-first one-way valve; 3-delivery pipeline; 31-second one-way valve. DETAILED DESCRIPTION

[0019] like Figure 1-2 As shown: A magnetic levitation water vapor compressor unit with ejector water spray includes a magnetic levitation water vapor compressor 100, a heat exchanger 200 and a flash tank 300 connected in series, a steam ejector 1 is connected in series between the magnetic levitation water vapor compressor 100 and the heat exchanger 200, the steam ejector 1 is connected to both ends of the magnetic levitation water vapor compressor 100, a first one-way valve 2 is connected in series between one end of the flash tank 300 and the heat exchanger 200, and one end of the heat exchanger 200 is also connected to a delivery pipeline 3, and a second one-way valve 31 is connected in series on the delivery pipeline 3.

[0020] A compressor inlet 101 is provided at one end of the magnetic levitation water vapor compressor 100 , and a compressor outlet 102 is provided at the other end of the magnetic levitation water vapor compressor 100 .

[0021] A heat exchanger inlet 1 201 and a heat exchanger inlet 203 are provided at one end of the heat exchanger 200 .

[0022] The other end of the heat exchanger 200 is provided with a first heat exchanger outlet 202 and a second heat exchanger outlet 204 .

[0023] The flash tank 300 is provided with a first inlet 303 on one side, and a second inlet 304 on the other side.

[0024] A flash steam outlet 301 is provided at one end of the flash tank 300 , and a condensed water outlet 302 is provided at the other end of the flash tank 300 .

[0025] One end of the steam ejector 1 is provided with a steam extraction medium inlet 11 , and the other end of the steam ejector 1 is provided with an exhaust port 13 .

[0026] A working steam inlet 12 is provided on one side of the steam ejector 1 .

[0027] In this embodiment, the compressor outlet 102 of the magnetic levitation water vapor compressor 100 is connected to the first inlet 201 of the heat exchanger, and the compressor outlet 102 is also connected to the working steam inlet 12 .

[0028] The compressor inlet 101 is in communication with the flash steam outlet 301 , and the exhaust port 13 of the steam ejector 1 is also in communication with the compressor inlet 101 .

[0029] The first outlet 202 of the heat exchanger is in communication with the steam extraction medium inlet 11 of the steam ejector 1 .

[0030] The second outlet 204 of the heat exchanger is in communication with the second inlet 304 of the flash tank 300 .

[0031] The condensed water outlet 302 of the flash tank 300 is in communication with the second inlet 203 of the heat exchanger.

[0032] The first one-way valve 2 is connected in series between the condensed water outlet 302 and the second inlet 203 of the heat exchanger. The function of the first one-way valve 2 is to ensure that the condensed water can only flow from the condensed water outlet 302 to the second inlet 203 of the heat exchanger.

[0033] During use, the high-pressure dilute ionic liquid is decompressed to lower the boiling point and then enters the flash tank 300 from the first inlet 303 for gas-liquid separation. It rapidly boils and vaporizes in the flash tank 300 to form flash steam. The flash steam is output from the flash steam outlet 301 and enters the magnetic levitation water vapor compressor 100 through the compressor inlet 101.

[0034] The liquid separated in the flash tank 300 is low-temperature condensed water, which is output from the condensed water outlet 302. Under the action of the first one-way valve 2, it can only be output from the condensed water outlet 302. Among them, part of the low-temperature condensed water forms concentrated ionic liquid and is output from the second one-way valve 31, and the other part of the low-temperature condensed water enters the heat exchanger 200 through the second inlet 203 of the heat exchanger.

[0035] The flash steam entering the magnetic levitation water vapor compressor 100 from the compressor inlet 101 rotates rapidly with the impeller, and the compression reduces the volume of the flash steam and increases the pressure. When the pressure of the flash steam reaches a certain value, the flash steam is discharged by the magnetic levitation water vapor compressor 100 through the compressor outlet 102, thereby converting the low-temperature and low-pressure flash steam into high-temperature and high-pressure flash steam for use by the equipment.

[0036] A portion of the high-temperature and high-pressure flash steam discharged from the compressor outlet 102 enters the heat exchanger 200 through the heat exchanger inlet 201 to exchange heat with the low-temperature condensed water; another portion of the high-temperature and high-pressure flash steam discharged from the compressor outlet 102 enters the steam ejector 1 through the working steam inlet 12 to provide working steam for the steam ejector 1.

[0037] The low-temperature condensed water that has been completely heated in the heat exchanger 200 is output from the second outlet 204 of the heat exchanger after absorbing heat, and enters the flash tank 300 through the second inlet 304 to continue generating more flash steam. The high-temperature and high-pressure flash steam entering the heat exchanger 200 becomes low-temperature and low-pressure condensed water after absorbing part of the heat, and is output through the first outlet 202 of the heat exchanger and then enters the steam ejector 1 through the steam-extracted medium inlet 11. When the working steam passes through the nozzle of the steam ejector 1, it is accelerated and depressurized, converting the potential energy of the steam into kinetic energy. It is then ejected into the mixing chamber of the steam ejector 1 at a supersonic speed, fully mixed with the low-temperature and low-pressure condensed water to exchange energy. The mixed gas enters the diffuser of the steam ejector 1, decelerated and pressurized, and discharged through the exhaust port 13 of the steam ejector 1, mixed with the flash steam generated in the flash tank 300, and enters the magnetic levitation water vapor compressor 100 through the compressor inlet 101 to continue working, thereby improving the efficiency of the magnetic levitation water vapor compressor 100 and reducing system energy consumption.

[0038] For ordinary technicians in this field, based on the teachings of this utility model, without departing from the principles and spirit of this utility model, changes, modifications, replacements and deformations made to the implementation methods are still within the scope of protection of this utility model.

Claims

1. A magnetic levitation water vapor compressor unit with ejector water spray, comprising a magnetic levitation water vapor compressor (100), a heat exchanger (200) and a flash tank (300) connected in series, characterized in that: A steam ejector (1) is connected in series between the magnetic levitation water vapor compressor (100) and the heat exchanger (200). The steam ejector (1) is connected to both ends of the magnetic levitation water vapor compressor (100). A first one-way valve (2) is connected in series between one end of the flash tank (300) and the heat exchanger (200). One end of the heat exchanger (200) is also connected to a delivery pipeline (3). A second one-way valve (31) is connected in series to the delivery pipeline (3).

2. A magnetically suspended steam compressor unit with ejector water spray according to claim 1, characterized in that: A compressor inlet (101) is provided at one end of the magnetic levitation water vapor compressor (100), and a compressor outlet (102) is provided at the other end of the magnetic levitation water vapor compressor (100).

3. A magnetically suspended steam compressor unit with ejector water spray according to claim 2, characterized in that: One end of the heat exchanger (200) is provided with a first heat exchanger inlet (201) and a second heat exchanger inlet (203), and the other end of the heat exchanger (200) is provided with a first heat exchanger outlet (202) and a second heat exchanger outlet (204).

4. A magnetically suspended steam compressor unit with ejector water spray according to claim 3, characterized in that: A first inlet (303) is provided on one side of the flash tank (300), a second inlet (304) is provided on the other side of the flash tank 300, a flash steam outlet (301) is provided at one end of the flash tank (300), and a condensed water outlet (302) is provided at the other end of the flash tank (300).

5. A magnetically suspended steam compressor unit with ejector water spray according to claim 4, characterized in that: One end of the steam ejector (1) is provided with a steam extraction medium inlet (11), the other end of the steam ejector (1) is provided with an exhaust port (13), and one side of the steam ejector (1) is provided with a working steam inlet (12).

6. The magnetic levitation steam compressor unit with ejector water spray according to claim 5, characterized in that: The compressor outlet (102) is in communication with an inlet (201) of the heat exchanger, the compressor outlet (102) is also in communication with a working steam inlet (12), the compressor inlet (101) is in communication with a flash steam outlet (301), and the exhaust port (13) of the steam ejector (1) is also in communication with the compressor inlet (101).

7. The magnetic levitation steam compressor unit with ejector water spray according to claim 6, characterized in that: The first outlet (202) of the heat exchanger is in communication with the steam extraction medium inlet (11) of the steam ejector (1), and the second outlet (204) of the heat exchanger is in communication with the second inlet (304) of the flash tank 300.

8. The magnetic levitation steam compressor unit with ejector water spray according to claim 7, characterized in that: The condensed water outlet (302) of the flash tank (300) is in communication with the second inlet (203) of the heat exchanger.

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