Dehumidifying and drying steam unit

Abstract

The utility model provides a kind of dehumidification dry steam unit, including primary energy conversion component, waste heat condenser and secondary energy conversion component, waste heat condenser has primary refrigerant inlet, primary refrigerant outlet, secondary refrigerant inlet and secondary refrigerant outlet;The primary energy conversion component includes: primary compressor, for refrigerant reaches predetermined temperature and pressure, with refrigerant inlet and refrigerant outlet, its refrigerant outlet is connected with the primary refrigerant inlet of waste heat condenser by pipeline;First internal pipeline and second internal pipeline, the gas needing drying is sequentially passed through first internal pipeline, second internal pipeline, and first internal pipeline and second internal pipeline are communicated head to tail along the direction of gas flow;Finned condenser, located in second internal pipeline, with refrigerant inlet and refrigerant outlet, its refrigerant inlet is communicated with the primary refrigerant outlet of waste heat condenser by pipeline;Finned evaporator;Primary gas-liquid separator.

Description

Technical Field

[0001] This utility model relates to the field of dehumidification and drying, and in particular to a dehumidification and drying steam unit. Background Technology

[0002] During papermaking, high-temperature steam is continuously introduced into the paper machine cylinders. The cylinders transfer heat to their surfaces through thermal conduction, drying the paper that is in close contact with them. As the drying process continues, moisture evaporates and accumulates within the enclosed cavity containing the cylinders and paper, causing a significant increase in humidity. To maintain an efficient drying environment, dry air must be continuously introduced into this cavity. Through displacement and convection, the humid air is promptly expelled, ensuring that the drying system maintains suitable humidity conditions, thus guaranteeing both paper drying quality and production efficiency.

[0003] However, the expelled humid air still contains a lot of heat, and if it is directly expelled into the outside air, it will result in a waste of heat. Utility Model Content

[0004] The main purpose of this utility model is to provide a dehumidifying and drying steam unit that can recover heat from the humid air discharged from energy-consuming equipment and simultaneously dry the humid air.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a dehumidifying and drying steam unit for dehumidifying and drying the gas required by external energy-consuming equipment, including a primary energy conversion component, a waste heat condenser and a secondary energy conversion component, wherein the waste heat condenser has a primary refrigerant inlet, a primary refrigerant outlet, a secondary refrigerant inlet and a secondary refrigerant outlet; The primary transducer assembly includes: The first-stage compressor is used to bring the refrigerant to a predetermined temperature and pressure. It has a refrigerant inlet and a refrigerant outlet, and its refrigerant outlet is connected to the first-stage refrigerant inlet of the waste heat condenser through a pipe. The gas to be dried passes through the first internal pipe and the second internal pipe in sequence, and the first internal pipe and the second internal pipe are connected end to end along the direction of gas flow. The finned condenser, located inside the second internal pipe, has a refrigerant inlet and a refrigerant outlet. Its refrigerant inlet is connected to the primary refrigerant outlet of the waste heat condenser through a pipe. The finned evaporator, located inside the first internal pipe, has a refrigerant inlet and a refrigerant outlet, and its refrigerant inlet is connected to the refrigerant outlet of the finned condenser through a pipe. The first-stage gas-liquid separator has a refrigerant inlet and a refrigerant outlet. Its refrigerant inlet is connected to the refrigerant outlet of the finned evaporator through a pipe, and its refrigerant outlet is connected to the refrigerant inlet of the first-stage compressor through a pipe. The refrigerant in the secondary transducer enters the waste heat condenser from the secondary refrigerant inlet and returns to the secondary transducer from the secondary refrigerant outlet.

[0006] Preferably, the primary energy exchanger further includes a heat pipe heat exchanger, with a first internal pipe and a second internal pipe arranged in parallel. A portion of the heat pipe heat exchanger is located in the first internal pipe, and another portion is located in the second internal pipe. Along the direction of gas flow, the gas passes sequentially through the heat pipe heat exchanger, the finned evaporator, the heat pipe heat exchanger, and the finned condenser.

[0007] Preferably, a filter and an expansion valve are sequentially installed on the pipe connecting the finned condenser and the finned evaporator along the direction of refrigerant flow.

[0008] Preferably, the energy-consuming device includes an air outlet for outputting humid air and a first air inlet for inputting dry air. The air outlet is connected to the inlet of a first internal pipe through a first air duct, and the first air inlet is connected through a second air duct.

[0009] Preferably, the secondary transducer assembly includes: The two-stage compressor has a refrigerant inlet and a refrigerant outlet. Its refrigerant inlet is connected to the secondary refrigerant outlet of the waste heat condenser through a secondary gas-liquid separator. The secondary condenser is equipped with a refrigerant inlet, a refrigerant outlet, a water inlet, and a water outlet. Its refrigerant inlet is connected to the refrigerant outlet of the secondary compressor through a pipe, and its refrigerant outlet is connected to the secondary refrigerant inlet of the waste heat condenser through a pipe. The flash tank has a first inlet and a first outlet. The first inlet is connected to the outlet of the secondary condenser through a pipe, and the first outlet is connected to the inlet of the secondary condenser through a pipe. The first outlet is located near the bottom of the flash tank, and the first inlet is located near the top of the flash tank.

[0010] Preferably, it also includes a Venturi jet, wherein the high-pressure inlet of the Venturi jet is connected to other steam sources, the suction inlet is connected to the steam outlet of the flash tank, and the steam outlet is input into the energy-consuming equipment.

[0011] Preferably, the primary energy exchange component further includes a heat exchange core with a square cross-section, having an inlet 1, an outlet 1, an inlet 2, and an outlet 2. Inlet 1 and outlet 1 are connected and located on opposite sides of the square, and inlet 2 and outlet 2 are connected and located on the other opposite side of the square. A first internal pipe and a second internal pipe are arranged in parallel. The first internal pipe is divided into a first part and a second part by a partition, and the second internal pipe is divided into a third part and a fourth part by a partition. The first part is the inlet of the first internal channel, and the fourth part is the outlet of the second internal channel. The other part of the first internal channel is the second part, and the other part of the second internal channel is the third part. The second part and the third part are connected. Inlet 1 is located in the first part, outlet 1 is located in the third part, inlet 2 is located in the second part, and outlet 2 is located in the fourth part. Gas entering from the inlet of the first internal channel passes sequentially through inlet 1, outlet 1, finned evaporator, inlet 2, outlet 2, and finned condenser.

[0012] This utility model also provides a dehumidifying and drying steam unit for dehumidifying and drying the gas required by external energy-consuming equipment, including a primary energy conversion component, a waste heat condenser and a secondary energy conversion component, wherein the waste heat condenser has a primary refrigerant inlet, a primary refrigerant outlet, a secondary refrigerant inlet and a secondary refrigerant outlet. The primary transducer assembly includes: A single-stage compressor is used to bring the refrigerant to a predetermined temperature and pressure, and has a refrigerant inlet and a refrigerant outlet; The gas to be dried passes through the first internal pipe and the second internal pipe in sequence, and the first internal pipe and the second internal pipe are connected end to end along the direction of gas flow. The finned condenser, located inside the second internal pipe, has a refrigerant inlet and a refrigerant outlet. Its refrigerant inlet is connected to the refrigerant outlet of the first-stage compressor through a pipe, and its refrigerant outlet is connected to the first-stage refrigerant inlet of the waste heat condenser through a pipe. The finned evaporator, located inside the first internal pipe, has a refrigerant inlet and a refrigerant outlet. Its refrigerant inlet is connected to the primary refrigerant outlet of the waste heat condenser through a pipe. The first-stage gas-liquid separator has a refrigerant inlet and a refrigerant outlet. Its refrigerant inlet is connected to the refrigerant outlet of the finned evaporator through a pipe, and its refrigerant outlet is connected to the refrigerant inlet of the first-stage compressor through a pipe. The refrigerant in the secondary transducer enters the waste heat condenser from the secondary refrigerant inlet and returns to the secondary transducer from the secondary refrigerant outlet.

[0013] Preferably, the primary energy exchange component further includes a heat exchange core with a square cross-section, having an inlet 1, an outlet 1, an inlet 2, and an outlet 2. Inlet 1 and outlet 1 are connected and located on opposite sides of the square, and inlet 2 and outlet 2 are connected and located on the other opposite side of the square. A first internal pipe and a second internal pipe are arranged in parallel. The first internal pipe is divided into a first part and a second part by a partition, and the second internal pipe is divided into a third part and a fourth part by a partition. The first part is the inlet of the first internal channel, and the fourth part is the outlet of the second internal channel. The other part of the first internal channel is the second part, and the other part of the second internal channel is the third part. The second part and the third part are connected. Inlet 1 is located in the first part, outlet 1 is located in the third part, inlet 2 is located in the second part, and outlet 2 is located in the fourth part. Gas entering from the inlet of the first internal channel passes sequentially through inlet 1, outlet 1, finned evaporator, inlet 2, outlet 2, and finned condenser.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1) This utility model can dry and heat the humid air emitted by the energy-consuming device, and at the same time recover some of the heat in the humid air, thus realizing partial heat recovery; 2) The remaining heat of the primary energy transducer can be partially transferred to the secondary energy transducer. The secondary energy transducer can use some of the absorbed heat to heat the water in the flash tank. The flash tank can generate steam and input it into the energy-consuming equipment, so as to realize the closed-loop energy recovery application as much as possible. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of Embodiment 2 of this utility model; Figure 3 This is a schematic diagram of Embodiment 3 of this utility model; Figure 4 This is a schematic diagram of Embodiment 4 of this utility model. Detailed Implementation

[0016] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0017] Example 1 A dehumidifying and drying steam unit is used to dehumidify and dry the gas required by external energy-consuming equipment. It includes a primary compressor 1, a primary gas-liquid separator 2, a waste heat condenser 3, a heat pipe heat exchanger 4, a finned evaporator 5, a finned condenser 8, a primary filter 6, a primary expansion valve 7, a secondary gas-liquid separator 9, a secondary compressor 10, a secondary expansion valve 11, a secondary filter 12, a secondary condenser 13, and a flash tank 16. The primary compressor 1 is used to compress a low-temperature, low-pressure refrigerant to a high-temperature, high-pressure refrigerant, and the primary compressor 1 is provided with a refrigerant inlet and a refrigerant outlet. The waste heat condenser 3 has a primary refrigerant inlet, a primary refrigerant outlet, a secondary refrigerant inlet, and a secondary refrigerant outlet. The primary refrigerant inlet is connected to the refrigerant outlet of the primary compressor 1 via a pipe. The primary refrigerant outlet is connected to the refrigerant inlet of the finned condenser 8 via a pipe. The refrigerant outlet of the finned condenser 8 is connected to the refrigerant inlet of the finned evaporator 5 via a pipe. The refrigerant outlet of the finned evaporator 5 is connected to the refrigerant inlet of the primary gas-liquid separator 2 via a pipe. The refrigerant outlet of the primary gas-liquid separator 2 is connected to the refrigerant inlet of the primary compressor 1 via a pipe.

[0018] This utility model targets energy-consuming equipment, primarily papermaking machines. During operation, damp paper is wound into internal rollers. High-temperature, high-pressure steam is introduced into the rollers to heat the damp paper. Dry air is then circulated through the rollers to remove internal water vapor, thus achieving drying and dehumidification. The energy-consuming equipment is equipped with an outlet for discharging damp air, a first inlet for discharging dry air, and a second inlet for inputting high-temperature, high-pressure steam.

[0019] The dehumidifying and drying steam unit also includes a first internal pipe 22 and a second internal pipe 23. The air inlet of the first internal pipe 22 is connected to the air outlet of the energy-consuming equipment through a first air duct 17. The air outlet of the second internal pipe 23 is connected to the first air inlet of the energy-consuming equipment through a second air duct 19. The first internal pipe 22 and the second internal pipe 23 are arranged in parallel, and the air outlet of the first internal pipe 22 is connected to the air inlet of the second internal pipe 23. The finned condenser 8 is disposed inside the second internal pipe 23. The finned evaporator 5 is disposed inside the first internal pipe 22. A portion of the heat pipe heat exchanger 4 is disposed inside the first internal pipe 22, and another portion is disposed inside the second internal pipe 22. In the first internal pipe 22, the heat pipe heat exchanger 4 and the finned evaporator 5 are arranged sequentially along the direction of gas flow. In the second internal pipe 22, the heat pipe heat exchanger 4 and the finned condenser 8 are arranged sequentially along the direction of gas flow. Moist air exiting the energy-consuming equipment enters the first internal pipe 22 through the first air duct 17 and then sequentially passes through the heat pipe heat exchanger 4 and the finned evaporator 5 before entering the second internal pipe 23. Within the second internal pipe 23, the air sequentially passes through the heat pipe heat exchanger 4 and the finned condenser 8. Dry air exiting the second internal pipe 23 enters the energy-consuming equipment through the second air duct 19. The moist air exiting the energy-consuming equipment has a high temperature and humidity. When it passes through the heat pipe heat exchanger 4, it exchanges some heat from the first internal pipe 22 to the second internal pipe 23. When the air passes through the finned evaporator 5, it is further cooled, and the lower temperature causes the water vapor in the air to condense, thus drying the air. When the dried air enters the second internal pipe 23, it undergoes a first temperature increase through the heat pipe heat exchanger 4 and a second temperature increase through the finned condenser 8. The dried air, now at a higher temperature, then enters the energy-consuming equipment 20, and the used air re-enters the first air duct 17 for circulation.

[0020] A fan 26 is installed at the connection between the second internal duct and the second air duct 19. The fan 26 can make the air flow at a predetermined speed.

[0021] After the high-temperature, high-pressure refrigerant from the first-stage compressor 1 exits, it enters the waste heat condenser 3 through the first-stage refrigerant inlet. After heat exchange in the waste heat condenser 3, it exits through the first-stage refrigerant outlet and enters the finned condenser 8 via a pipe. Although the temperature of the refrigerant exiting the first-stage refrigerant outlet is somewhat lower, it still maintains a relatively high temperature. Upon entering the finned condenser 8, the refrigerant exchanges heat with the dry air, raising its temperature. The refrigerant exiting the finned condenser 8 then enters the finned evaporator 5. The refrigerant in the finned evaporator 5 has a lower temperature, further cooling the humid air and causing the water vapor in the humid air to condense into water. A first condensate recovery pipe 24 is connected to the bottom of the first internal pipe 22, corresponding to the position of the finned evaporator 5, enabling the recovery of condensate.

[0022] Furthermore, a primary filter 6 and a primary expansion valve 7 are sequentially installed on the pipe connecting the finned condenser 8 and the finned evaporator 5 along the flow direction of the refrigerant. The primary filter 6 is used to filter impurities in the refrigerant, and the primary expansion valve 7 is used to throttle the medium-temperature and high-pressure liquid refrigerant into a low-temperature and low-pressure wet vapor refrigerant.

[0023] The refrigerant from the finned evaporator 5 enters the first-stage gas-liquid separator 2, which separates the gas and liquid in the refrigerant. The refrigerant after liquid separation enters the first-stage compressor 1 through a pipeline and enters the next cycle.

[0024] The secondary compressor 10 has a refrigerant inlet and a refrigerant outlet. The refrigerant inlet of the secondary compressor 10 is connected to the refrigerant outlet of the secondary gas-liquid separator 9 via a pipe. The refrigerant inlet of the secondary gas-liquid separator 9 is connected to the secondary refrigerant outlet of the waste heat condenser 3 via a pipe. The refrigerant outlet of the secondary compressor 10 is connected to the refrigerant inlet of the secondary condenser 13 via a pipe. The refrigerant outlet of the secondary condenser 13 is connected to the secondary refrigerant inlet of the waste heat condenser 3 via a pipe. A secondary filter 12 and a secondary expansion valve 11 are sequentially arranged on the pipe connecting the secondary condenser 13 and the waste heat condenser 3 along the direction of refrigerant flow.

[0025] The dehumidifying and drying steam unit also includes a flash tank 16. The flash tank 16 has a first water inlet and a first water outlet on its side wall. The first water outlet is located near the bottom of the flash tank 16, and the first water inlet is located near the top of the flash tank 16. The first water outlet is connected to the water inlet of the secondary condenser 13 through a pipe, and the first water inlet is connected to the water outlet of the secondary condenser 13 through a pipe.

[0026] In the waste heat condenser 3, the two refrigerants exchange heat. The refrigerant entering the primary compressor 1 is heated in the waste heat condenser 3, while the refrigerant entering the secondary compressor 10 is cooled in the waste heat condenser 3. The refrigerant exiting the waste heat condenser 3 and entering the secondary gas-liquid separator 9 then enters the secondary compressor 10, where it compresses the refrigerant to a high temperature and high pressure. The refrigerant exiting the secondary compressor 10 exchanges heat with the water in the flash tank 16 in the secondary condenser 13. Although the temperature of the refrigerant exiting the secondary condenser 13 is lower, it still has a relatively high temperature. The refrigerant exiting the secondary condenser 13 passes through the secondary filter 12 to filter impurities and then through the secondary expansion valve 11 to throttle the medium-temperature, high-pressure refrigerant into low-temperature, low-pressure wet vapor. The refrigerant exiting the secondary expansion valve 11 undergoes further heat exchange in the waste heat condenser 3, resulting in further cooling. In the secondary condenser 13, the water entering from the flash tank 16 is heated to a certain temperature and then returned to the flash tank 16. The low-pressure steam from the flash tank 16 is fed into the energy-consuming equipment 20 through the first steam pipe 27.

[0027] The dehumidifying and drying steam unit also includes a Venturi jet injector 21. The end of the first steam pipe 27 furthest from the flash tank 16 is connected to the inlet of the Venturi jet injector 21. The high-pressure inlet of the Venturi jet injector 21 is connected to a steam source, which can generate high-temperature steam, such as a boiler. The outlet of the Venturi jet injector 21 is connected to the energy-consuming equipment. The low-pressure steam from the flash tank 16 mixes with the high-temperature, high-pressure steam in the Venturi jet injector 21 before entering the energy-consuming equipment 20.

[0028] Furthermore, the dehumidifying and drying steam unit also includes a condensate pipe 24. One end of the condensate pipe 24 is connected to the water inlet at the bottom of the flash tank 16. At the same time, the condensate pipe 24 is also connected to the bottom of the energy-consuming device 20. The steam condensate formed in the energy-consuming device 20 can flow into the condensate pipe 24 to replenish water for the flash tank 16.

[0029] Example 2 In this embodiment, a heat exchange core 25 is used instead of the heat pipe heat exchanger 4 in Embodiment 1, and the rest is completely consistent with the scheme in Embodiment 1. The heat exchange core 25 has a square cross-section and has an air inlet 1, an air outlet 1, an air inlet 2, and an air outlet 2. The air inlet 1 and the air outlet 1 are connected and located on opposite sides of the square, and the air inlet 2 and the air outlet 2 are connected and located on the other opposite side of the square. The first internal pipe 22 and the second internal pipe 23 are divided into two parts by a partition, that is, the first internal pipe 22 and the second internal pipe 23 are divided into four parts in total. For ease of description, the four parts are referred to as the first part, the second part, the third part, and the fourth part, respectively. The first part is the part of the first internal channel that connects to the first air duct 17, and the fourth part is the part of the second internal channel that connects to the second air duct 19. The other part of the first internal channel is the second part, and the other part of the second internal channel is the third part. The air inlet 1 is located in the first part, and the air outlet 25 is located in the third part. Inlet 1 is located in the third section, inlet 2 is located in the second section, and outlet 2 is located in the fourth section. The second and third sections are connected. Steam from the first channel enters from the first section, passes through heat exchange core 25, and enters the third section from outlet 1. Then, it enters the second section from the third section. A finned evaporator 5 is installed in the second section. When the steam passes through the finned evaporator 5, the water vapor in it is condensed into water, thus achieving drying. After entering from inlet 2 in the second section, it passes through heat exchange core 25 and enters the fourth section from outlet 2. At this time, the gas is heated by the gas entering from inlet 1. A finned condenser 8 is installed in the fourth section, and the gas is reheated after passing through the finned condenser 8. The heated gas then enters the second channel 19 from the fourth section.

[0030] Example 3 In this embodiment, the refrigerant outlet of the first compressor 1 is connected to the refrigerant inlet of the finned condenser 8 via a pipe. The refrigerant outlet of the finned condenser 8 is connected to the primary refrigerant inlet of the waste heat condenser 3 via a pipe. The primary refrigerant outlet of the waste heat condenser 3 is connected to the refrigerant inlet of the finned evaporator 5 via a pipe. A primary filter 12 and a primary expansion valve 11 are sequentially installed on the pipe connecting the waste heat condenser 3 and the finned evaporator 5, along the direction of refrigerant flow. The refrigerant outlet of the finned evaporator 5 is connected to the refrigerant inlet of the gas-liquid separator 2 via a pipe. The refrigerant outlet of the gas-liquid separator 2 is connected to the refrigerant inlet of the primary compressor 1 via a pipe. The remaining configuration is exactly the same as in Embodiment 1.

[0031] Example 4 In this embodiment, heat exchange core 25 is used instead of heat pipe heat exchanger 4 in embodiment one, and the rest of the structure is the same as in embodiment three. The arrangement of heat exchange core 25 is completely consistent with that in embodiment two.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dehumidifying and drying steam generator unit, used for dehumidifying and drying the gas required by external energy-consuming equipment, characterized in that, It includes a primary energy transducer, a waste heat condenser, and a secondary energy transducer. The waste heat condenser has a primary refrigerant inlet, a primary refrigerant outlet, a secondary refrigerant inlet, and a secondary refrigerant outlet. The primary transducer assembly includes: The first-stage compressor is used to bring the refrigerant to a predetermined temperature and pressure. It has a refrigerant inlet and a refrigerant outlet, and its refrigerant outlet is connected to the first-stage refrigerant inlet of the waste heat condenser through a pipe. The gas to be dried passes through the first internal pipe and the second internal pipe in sequence, and the first internal pipe and the second internal pipe are connected end to end along the direction of gas flow. The finned condenser, located inside the second internal pipe, has a refrigerant inlet and a refrigerant outlet. Its refrigerant inlet is connected to the primary refrigerant outlet of the waste heat condenser through a pipe. The finned evaporator, located inside the first internal pipe, has a refrigerant inlet and a refrigerant outlet, and its refrigerant inlet is connected to the refrigerant outlet of the finned condenser through a pipe. The first-stage gas-liquid separator has a refrigerant inlet and a refrigerant outlet. Its refrigerant inlet is connected to the refrigerant outlet of the finned evaporator through a pipe, and its refrigerant outlet is connected to the refrigerant inlet of the first-stage compressor through a pipe. The refrigerant in the secondary transducer enters the waste heat condenser from the secondary refrigerant inlet and returns to the secondary transducer from the secondary refrigerant outlet.

2. The dehumidifying and drying steam unit according to claim 1, characterized in that, The primary energy exchanger also includes a heat pipe heat exchanger. The first internal pipe and the second internal pipe are arranged in parallel. A part of the heat pipe heat exchanger is located in the first internal pipe and the other part is located in the second internal pipe. Along the direction of gas flow, the gas passes through the heat pipe heat exchanger, the finned evaporator, the heat pipe heat exchanger, and the finned condenser in sequence.

3. The dehumidifying and drying steam unit according to claim 1, characterized in that, A filter and an expansion valve are installed sequentially on the pipe connecting the finned condenser and the finned evaporator, along the direction of refrigerant flow.

4. The dehumidifying and drying steam unit according to claim 1, characterized in that, The energy-consuming device includes an air outlet for outputting humid air and a first air inlet for inputting dry air. The air outlet is connected to the inlet of a first internal pipe through a first air duct, and the first air inlet is connected through a second air duct.

5. A dehumidifying and drying steam unit according to claim 1, characterized in that, The secondary transducer assembly includes: The two-stage compressor has a refrigerant inlet and a refrigerant outlet. Its refrigerant inlet is connected to the secondary refrigerant outlet of the waste heat condenser through a secondary gas-liquid separator. The secondary condenser is equipped with a refrigerant inlet, a refrigerant outlet, a water inlet, and a water outlet. Its refrigerant inlet is connected to the refrigerant outlet of the secondary compressor through a pipe, and its refrigerant outlet is connected to the secondary refrigerant inlet of the waste heat condenser through a pipe. The flash tank has a first inlet and a first outlet. The first inlet is connected to the outlet of the secondary condenser through a pipe, and the first outlet is connected to the inlet of the secondary condenser through a pipe. The first outlet is located near the bottom of the flash tank, and the first inlet is located near the top of the flash tank.

6. A dehumidifying and drying steam unit according to claim 5, characterized in that, It also includes a Venturi jet, the high-pressure inlet of which is connected to other steam sources, the suction port of which is connected to the steam outlet of the flash tank, and the steam outlet is input into the energy-consuming equipment.

7. A dehumidifying and drying steam unit according to claim 1, characterized in that, It also includes a heat exchange core with a square cross-section, having an inlet 1, an outlet 1, an inlet 2, and an outlet 2. Inlet 1 and outlet 1 are connected and located on opposite sides of the square, and inlet 2 and outlet 2 are connected and located on the other opposite side of the square. A first internal pipe and a second internal pipe are arranged in parallel. The first internal pipe is divided into a first part and a second part by a partition, and the second internal pipe is divided into a third part and a fourth part by a partition. The first part is the inlet of the first internal channel, and the fourth part is the outlet of the second internal channel. The other part of the first internal channel is the second part, and the other part of the second internal channel is the third part. The second part and the third part are connected. Inlet 1 is located in the first part, outlet 1 is located in the third part, inlet 2 is located in the second part, and outlet 2 is located in the fourth part. Gas entering from the inlet of the first internal channel passes sequentially through inlet 1, outlet 1, finned evaporator, inlet 2, outlet 2, and finned condenser.

8. A dehumidifying and drying steam generator unit, used for dehumidifying and drying the gas required by external energy-consuming equipment, characterized in that, It includes a primary energy transducer, a waste heat condenser, and a secondary energy transducer. The waste heat condenser has a primary refrigerant inlet, a primary refrigerant outlet, a secondary refrigerant inlet, and a secondary refrigerant outlet. The primary transducer assembly includes: A single-stage compressor is used to bring the refrigerant to a predetermined temperature and pressure, and has a refrigerant inlet and a refrigerant outlet; The gas to be dried passes through the first internal pipe and the second internal pipe in sequence, and the first internal pipe and the second internal pipe are connected end to end along the direction of gas flow. The finned condenser, located inside the second internal pipe, has a refrigerant inlet and a refrigerant outlet. Its refrigerant inlet is connected to the refrigerant outlet of the first-stage compressor through a pipe, and its refrigerant outlet is connected to the first-stage refrigerant inlet of the waste heat condenser through a pipe. The finned evaporator, located inside the first internal pipe, has a refrigerant inlet and a refrigerant outlet. Its refrigerant inlet is connected to the primary refrigerant outlet of the waste heat condenser through a pipe. The first-stage gas-liquid separator has a refrigerant inlet and a refrigerant outlet. Its refrigerant inlet is connected to the refrigerant outlet of the finned evaporator through a pipe, and its refrigerant outlet is connected to the refrigerant inlet of the first-stage compressor through a pipe. The refrigerant in the secondary transducer enters the waste heat condenser from the secondary refrigerant inlet and returns to the secondary transducer from the secondary refrigerant outlet.

9. A dehumidifying and drying steam unit according to claim 8, characterized in that, The primary energy exchange component also includes a heat exchange core with a square cross-section. The heat exchange core has an inlet 1, an outlet 1, an inlet 2, and an outlet 2. Inlet 1 and outlet 1 are connected and located on opposite sides of the square. Inlet 2 and outlet 2 are connected and located on the other opposite side of the square. A first internal pipe and a second internal pipe are arranged in parallel. The first internal pipe is divided into a first part and a second part by a partition. The second internal pipe is divided into a third part and a fourth part by a partition. The first part is the inlet of the first internal channel, and the fourth part is the outlet of the second internal channel. The other part of the first internal channel is the second part, and the other part of the second internal channel is the third part. The second part and the third part are connected. Inlet 1 is located in the first part, outlet 1 is located in the third part, inlet 2 is located in the second part, and outlet 2 is located in the fourth part. Gas entering from the inlet of the first internal channel passes sequentially through inlet 1, outlet 1, finned evaporator, inlet 2, outlet 2, and finned condenser.

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