Energy-saving secondary rotating wheel dehumidification air conditioning system

Abstract

An external high-temperature steam source is connected with the input end of a first regeneration heating section and the input end of a second regeneration heating section through a first high-temperature steam supply pipe, and the output end of the first regeneration heating section and the output end of the second regeneration heating section are both connected with a drain valve set. The output end of the first regeneration heating section and the output end of the second regeneration heating section are connected with the liquid input end of a drain valve set through a first condensate water return pipe, a first high-temperature steam supply pipe is connected with the steam input end of the drain valve set through a second high-temperature steam supply pipe, and the liquid output end of the drain valve set is connected with a condensate water main pipe through a second condensate water return pipe. The drain valve set replaces an existing electric valve to be matched with the water collecting disc to recycle condensate water, cleanliness is guaranteed, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning systems, and more specifically to an energy-saving secondary rotary wheel dehumidification air conditioning system. Background Art

[0002] In the photovoltaic semiconductor, microelectronics, food, medicine and other industries, the clean room production plants have strict requirements on the technical indicators of environmental temperature and humidity. Therefore, the above industries, especially the clean room humidity control of the microelectronics industry, widely use rotary dehumidifiers to dehumidify and adjust the indoor air humidity to ensure the air humidity index in the plant. The dehumidification principle is that the dehumidification (adsorption dehumidification) wheel is divided into a processing area and a regeneration area by a sealing system inside the dehumidification section. When the treated air passes through the treatment area of ​​the wheel, the water vapor in it is adsorbed by the hygroscopic medium (silica gel) in the wheel, and the treated air becomes dry and hot air due to the reduction of its own water content. When the hygroscopic medium is saturated due to the absorption of water vapor, the wheel enters the regeneration area for regeneration. The air is heated by the steam heater to become high-temperature air (generally 100-140 degrees) and passes through the saturated wheel after moisture absorption, so that the adsorbed water in the wheel evaporates, thereby restoring the dehumidification capacity of the wheel.

[0003] The closest technology to the existing one is, announcement number: CN213872958U, an energy-saving air-conditioning system with rotary dehumidification, which discloses, from left to right, a fresh air section 1, a front surface cooling section 4, a first-level rotary dehumidification section 7, a return air section 12, a middle surface cooling section 15, a medium-efficiency filtration section 18, a second-level rotary dehumidification section 20, a fan section 27, a rear heating section 29, a rear surface cooling section 30 and an air supply section 33, wherein the first-level rotary dehumidification section 7 has a first-level treatment area 8 and a first-level regeneration area 9, and the second-level rotary dehumidification section 20 has a second-level treatment area 21 and a second-level regeneration area 22, characterized in that: the air-conditioning system with rotary dehumidification includes a first working condition and a second working condition, in which the fresh air flow passes through the front surface cooling section 4, the first-level rotary dehumidification section 7, the return air section 12, the middle surface cooling section 15, the medium-efficiency filtration section 18, the second-level rotary dehumidification section 20, the fan section 27, the rear heating section 29, the rear surface cooling section 30 and the air supply section 33. After the air section 12, it is divided into two streams, one stream passes through the primary treatment area 8, the middle surface cooling section 15, the medium efficiency filtering section 18, the secondary rotary dehumidification section 20, the fan section 27, the rear heating section 29, the rear surface cooling section 30 and the air supply section 33 to enter the room, and the other stream passes through the primary regeneration area 9 and is discharged outdoors. In the second working condition, the fresh air flow passes through the front surface cooling section 4, the primary rotary dehumidification section 7, the return air section 12, the middle surface cooling section 15, the medium efficiency filtering section 18 and the secondary rotary dehumidification section 20 and is divided into two streams, one stream passes through the secondary treatment area 21, the fan section 27, the rear heating section 29, the rear surface cooling section 30 and the air supply section 33 to enter the room, and the other stream passes through the secondary regeneration area 22 and is transported to the primary regeneration area 9 to dehumidify the primary regeneration area 9 and then is discharged outdoors.

[0004] After the external high-temperature steam enters the first heating coil 10 and the second heating coil 23 in the rotary air-conditioning system, the condensed water needs to be lifted to the outside through an electric pump after passing through a water collecting tray. This treatment and recovery of condensed water cannot guarantee the cleanliness of the workshop, and the energy consumption of the electric pump is large, which increases the production cost.

[0005] In view of this, the utility model proposes an energy-saving secondary rotary dehumidification air-conditioning system with low energy consumption and high cleanliness. Utility Model Content

[0006] The purpose of the utility model is to provide an energy-saving secondary rotary dehumidification air-conditioning system with low consumption and high cleanliness.

[0007] An energy-saving secondary rotary dehumidification air conditioning system comprises an air conditioning unit 1, wherein the air conditioning unit 1 is provided with an air inlet 2, a first filtering section 3, a first heating section 4, a first surface cooling section 5, a second surface cooling section 6, a first rotary dehumidification section 7, a return air outlet 8, a first fan 9, a third surface cooling section 10, a second rotary dehumidification section 11, a fourth surface cooling section 12, a second heating section 13, a second fan 14, a second filtering section 15, and a first air outlet 16 from left to right, characterized in that: the first rotary dehumidification section 7 and the second rotary dehumidification section 11 form a rotary dehumidification chamber, the first rotary dehumidification section 7 comprises a third fan 71, a first processing section 72, and a first regeneration heating section 73, the second rotary dehumidification section 11 comprises a second processing section 111, a second regeneration heating section 112, and the chamber is arranged from right to left. The second regeneration heating section 112, the second treatment section 111, the first regeneration heating section 73, the first treatment section 72, the third fan 71 and the second air outlet are arranged in sequence on the left. The external high-temperature steam source is connected to the input ends of the first regeneration heating section 73 and the second regeneration heating section 112 through the first high-temperature steam supply pipe 17. The output ends of the first regeneration heating section 73 and the second regeneration heating section 112 are both connected to the steam trap group 18. The output ends of the first regeneration heating section 73 and the second regeneration heating section 112 are connected to the liquid input end of the steam trap group 18 through the first condensate return pipe 19. The first high-temperature steam supply pipe 17 is connected to the steam input end of the steam trap group 18 through the second high-temperature steam supply pipe 20. The liquid output end of the steam trap group 18 is connected to the condensate main pipe through the second condensate return pipe 21.

[0008] Furthermore, the steam trap group 18 includes a steam trap pump 181, one end of the steam trap pump 181 is provided with a first liquid inlet 182, and the other end of the steam trap pump 181 is provided with a first liquid outlet 183, the output ends of the first regeneration heating section 73 and the second regeneration heating section 112 are connected to the first liquid inlet 182 through the first condensate return pipe 19, the first liquid outlet 183 is connected to the condensate main pipe through the second condensate return pipe 21, one end of the top of the steam trap pump 181 is provided with a first steam inlet 184, and the other end of the top of the steam trap pump 181 is provided with an exhaust port 185, the first steam inlet 184 is connected to the first high-temperature steam supply pipe 17 through the second high-temperature steam supply pipe 20, and the exhaust port 185 is connected to the external exhaust port 185 through the first exhaust pipe 22, and the first exhaust pipe 22 discharges the generated air to the outside.

[0009] Furthermore, a first pressure sensor 191, a first ball valve 192, and a first Y-type filter 193 are sequentially arranged on the first condensate return pipe 19 from left to right, the first pressure sensor 191 is used to monitor the condensate pressure in the pipe in front of the liquid input end of the steam trap pump 181, the first ball valve 192 is used to control the opening and closing of the pipe, and the first Y-type filter 193 is used to perform preliminary filtration of the condensate in the pipe; a second ball valve 211, a second pressure sensor 212, and a first check valve 213 are sequentially arranged on the second condensate return pipe 21 from left to right, the second ball valve 211 is used to control the opening and closing of the pipe, the second pressure sensor 212 is used to monitor the condensate pressure in the pipe at the rear of the liquid output end of the steam trap pump 181, and the first check valve 213 is used to prevent the backflow of condensate.

[0010] Furthermore, the second high-temperature steam supply pipe 20 is provided with a third ball valve 201, a second Y-type filter 202, and a third pressure sensor 203 from top to bottom. The third ball valve 201 is used to control the opening and closing of the pipeline, the second Y-type filter 202 is used to perform preliminary filtering of the steam, and the third pressure sensor 203 is used to monitor the gas pressure in the pipeline in front of the steam input end of the steam trap pump 181.

[0011] Furthermore, a third condensate return pipe 23 is provided between the second high-temperature steam supply pipe 20 and the second condensate return pipe 21, which is used to input part of the condensate in the steam into the second condensate return pipe 21 and enter the condensation main pipe. The second high-temperature steam supply pipe 20 is connected to the second condensate return pipe 21 through the third condensate return pipe 23. The third condensate return pipe 23 is provided with a first steam trap 231, a second check valve 232, and a fourth ball valve 233 from left to right. The first steam trap 231 is used to discharge the liquid accumulated in the third condensate return pipe 23, the second check valve 232 is used to prevent the liquid from flowing back, and the fourth ball valve 233 is used to control the opening and closing of the pipeline.

[0012] Furthermore, a third check valve 221, a first water vapor separator 222, and a fifth ball valve 223 are sequentially arranged on the first exhaust pipe 22 from left to right. The third check valve 221 is used to prevent gas backflow, the first water vapor separator 222 is used to separate water and steam so that air is discharged from the pipeline, and the fifth ball valve 223 is used to control the opening and closing of the pipeline.

[0013] Furthermore, a second exhaust pipe 24 is provided on the side of the first condensate return pipe 19. The first condensate return pipe 19 is connected to the first exhaust pipe 22 through the second exhaust pipe 24. A sixth ball valve 241 is provided on the second exhaust pipe 24. The second exhaust pipe 24 is used to replenish the exhaust gas into the first condensate return pipe 19 to ensure its pressure state, prevent the generation of negative pressure, and reduce damage to the steam trap pump 181.

[0014] Furthermore, the output end of the air-conditioning unit 1 is connected to the fresh air input end of the workshop 25 through a pipeline, and the return air end of the workshop 25 is connected to the return air outlet 8 of the air-conditioning unit 1 through a pipeline, so that the return air is mixed with the primary wheel gas to facilitate cooling and replenishment of air volume.

[0015] Furthermore, the first filter section 3 includes a G4 primary filter and an F7 medium filter, which are arranged in sequence from left to right, and the second filter section 15 includes an F8 medium filter and an H13 sub-high efficiency filter, which are arranged in sequence from left to right.

[0016] Furthermore, a first butterfly valve 171 , a first electric valve 172 , a third Y-type filter 173 , and a second butterfly valve 174 are sequentially arranged on the first high-temperature steam supply pipe 17 from left to right.

[0017] The working principle of the utility model is as follows: after the condensate from the first regeneration heating section 73 and the second regeneration heating section 112 enters the steam trap pump 181, the high-temperature steam enters the steam trap pump 181 through the second high-temperature steam supply pipe 20, and the condensate is pressed to the second condensate return pipe 21 by the high-temperature steam, and the excess condensate generated by the high-temperature steam enters the second condensate return pipe 21 through the third condensate return pipe 23.

[0018] Beneficial effects of the utility model: The utility model proposes an energy-saving secondary rotary dehumidification air-conditioning system, which is connected to the input ends of the first regeneration heating section 73 and the second regeneration heating section 112 through an external high-temperature steam source through a first high-temperature steam supply pipe 17, and the output ends of the first regeneration heating section 73 and the second regeneration heating section 112 are both connected to a drain valve group 18, and the output ends of the first regeneration heating section 73 and the second regeneration heating section 112 are connected to the liquid input end of the drain valve group 18 through a first condensate return pipe 19, the first high-temperature steam supply pipe 17 is connected to the steam input end of the drain valve group 18 through a second high-temperature steam supply pipe 20, and the liquid output end of the drain valve group 18 is connected to the condensate main pipe through a second condensate return pipe 21, and the drain valve group 18 replaces the existing electric valve and cooperates with the water collection tray to recover condensate, thereby ensuring cleanliness and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of an energy-saving secondary rotary dehumidification air-conditioning system of the present application.

[0020] Figure 2 This is a partially enlarged structural schematic diagram of an energy-saving secondary rotary dehumidification air-conditioning system of the present application.

[0021] Figure 3 This is a structural schematic diagram of the connection between a drain valve group and an air conditioning unit of an energy-saving secondary rotary dehumidification air conditioning system of the present application.

[0022] Main component symbols

[0023]

[0024]

[0025]

[0026] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0027] The following examples are described to assist the understanding of the present application, and the examples are not and should not be interpreted in any way as limiting the scope of protection of the present application.

[0028] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as separate functional units (which may include sub-units), but those skilled in the art will recognize that various components or portions thereof may be divided into separate components or may be integrated together (including within a single system or component).

[0029] At the same time, the connections between components or systems are not intended to be limited to direct connections, rather, the data between these components may be modified, reformatted, or otherwise changed by intermediate components. In addition, additional or fewer connections may be used. It should also be noted that the terms "coupled," "connected," or "input" should be understood to include direct connections, indirect connections through one or more intermediate devices, and wireless connections.

[0030] Embodiment 1:

[0031] like Figure 1 As shown, it is a structural schematic diagram of an energy-saving secondary rotary dehumidification air conditioning system of the present application; Figure 2 As shown, it is a partial enlarged structural schematic diagram of an energy-saving secondary rotary dehumidification air conditioning system of the present application; Figure 3 As shown, it is a structural schematic diagram of the connection between the drain valve group and the air conditioning unit of an energy-saving secondary rotary dehumidification air-conditioning system of the present application.

[0032] An energy-saving secondary rotary dehumidification air conditioning system comprises an air conditioning unit 1, wherein the air conditioning unit 1 is provided with an air inlet 2, a first filtering section 3, a first heating section 4, a first surface cooling section 5, a second surface cooling section 6, a first rotary dehumidification section 7, a return air outlet 8, a first fan 9, a third surface cooling section 10, a second rotary dehumidification section 11, a fourth surface cooling section 12, a second heating section 13, a second fan 14, a second filtering section 15, and a first air outlet 16 from left to right, characterized in that: the first rotary dehumidification section 7 and the second rotary dehumidification section 11 form a rotary dehumidification chamber, the first rotary dehumidification section 7 comprises a third fan 71, a first processing section 72, and a first regeneration heating section 73, the second rotary dehumidification section 11 comprises a second processing section 111, a second regeneration heating section 112, and the chamber is arranged from right to left. The second regeneration heating section 112, the second treatment section 111, the first regeneration heating section 73, the first treatment section 72, the third fan 71 and the second air outlet are arranged in sequence on the left. The external high-temperature steam source is connected to the input ends of the first regeneration heating section 73 and the second regeneration heating section 112 through the first high-temperature steam supply pipe 17. The output ends of the first regeneration heating section 73 and the second regeneration heating section 112 are both connected to the steam trap group 18. The output ends of the first regeneration heating section 73 and the second regeneration heating section 112 are connected to the liquid input end of the steam trap group 18 through the first condensate return pipe 19. The first high-temperature steam supply pipe 17 is connected to the steam input end of the steam trap group 18 through the second high-temperature steam supply pipe 20. The liquid output end of the steam trap group 18 is connected to the condensate main pipe through the second condensate return pipe 21.

[0033] The steam trap group 18 includes a steam trap pump 181, one end of which is provided with a first liquid inlet 182, and the other end of which is provided with a first liquid outlet 183. The output ends of the first regeneration heating section 73 and the second regeneration heating section 112 are both connected to the first liquid inlet 182 through the first condensate return pipe 19, and the first liquid outlet 183 is connected to the condensate main pipe through the second condensate return pipe 21. A first steam inlet 184 is provided at one end of the top of the steam trap pump 181, and an exhaust port 185 is provided at the other end of the top of the steam trap pump 181. The first steam inlet 184 is connected to the first high-temperature steam supply pipe 17 through the second high-temperature steam supply pipe 20, and the exhaust port 185 is connected to the external exhaust port 185 through the first exhaust pipe 22. The first exhaust pipe 22 discharges the generated air to the outside.

[0034] The first condensate return pipe 19 is provided with a first pressure sensor 191, a first ball valve 192, and a first Y-type filter 193 from left to right, the first pressure sensor 191 is used to monitor the condensate pressure in the pipe in front of the liquid input end of the steam trap pump 181, the first ball valve 192 is used to control the opening and closing of the pipe, and the first Y-type filter 193 is used to perform preliminary filtering of the condensate in the pipe; the second condensate return pipe 21 is provided with a second ball valve 211, a second pressure sensor 212, and a first check valve 213 from left to right, the second ball valve 211 is used to control the opening and closing of the pipe, the second pressure sensor 212 is used to monitor the condensate pressure in the pipe at the rear of the liquid output end of the steam trap pump 181, and the first check valve 213 is used to prevent the backflow of condensate.

[0035] The second high-temperature steam supply pipe 20 is provided with a third ball valve 201, a second Y-type filter 202, and a third pressure sensor 203 from top to bottom. The third ball valve 201 is used to control the opening and closing of the pipeline, the second Y-type filter 202 is used to perform preliminary filtering of the steam, and the third pressure sensor 203 is used to monitor the gas pressure in the pipeline in front of the steam input end of the steam trap pump 181.

[0036] A third condensate return pipe 23 is also provided between the second high-temperature steam supply pipe 20 and the second condensate return pipe 21, which is used to input part of the condensate in the steam into the second condensate return pipe 21 and enter the condensation main pipe. The second high-temperature steam supply pipe 20 is connected to the second condensate return pipe 21 through the third condensate return pipe 23. The third condensate return pipe 23 is provided with a first steam trap 231, a second check valve 232, and a fourth ball valve 233 from left to right. The first steam trap 231 is used to discharge the liquid accumulated in the third condensate return pipe 23, the second check valve 232 is used to prevent the liquid from flowing back, and the fourth ball valve 233 is used to control the opening and closing of the pipeline.

[0037] The first exhaust pipe 22 is provided with a third check valve 221, a first water vapor separator 222, and a fifth ball valve 223 from left to right. The third check valve 221 is used to prevent gas backflow, the first water vapor separator 222 is used to separate water and steam so that air can be discharged from the pipeline, and the fifth ball valve 223 is used to control the opening and closing of the pipeline.

[0038] A second exhaust pipe 24 is also provided on the side of the first condensate return pipe 19. The first condensate return pipe 19 is connected to the first exhaust pipe 22 through the second exhaust pipe 24. A sixth ball valve 241 is provided on the second exhaust pipe 24. The second exhaust pipe 24 is used to replenish the exhaust gas into the first condensate return pipe 19 to ensure its pressure state, prevent the generation of negative pressure, and reduce damage to the steam trap pump 181.

[0039] The output end of the air conditioning unit 1 is connected to the fresh air input end of the workshop 25 through a pipeline, and the return air end of the workshop 25 is connected to the return air outlet 8 of the air conditioning unit 1 through a pipeline, so that the return air is mixed with the primary rotor gas to facilitate cooling and replenishment of air volume.

[0040] The first filter section 3 includes a G4 primary filter and an F7 medium filter, which are arranged in sequence from left to right. The second filter section 15 includes an F8 medium filter and an H13 sub-high efficiency filter, which are arranged in sequence from left to right.

[0041] The first high-temperature steam supply pipe 17 is provided with a first butterfly valve 171 , a first electric valve 172 , a third Y-type filter 173 , and a second butterfly valve 174 in sequence from left to right.

[0042] The working principle of the utility model is as follows: after the condensate from the first regeneration heating section 73 and the second regeneration heating section 112 enters the steam trap pump 181, the high-temperature steam enters the steam trap pump 181 through the second high-temperature steam supply pipe 20, and the condensate is pressed to the second condensate return pipe 21 by the high-temperature steam, and the excess condensate generated by the high-temperature steam enters the second condensate return pipe 21 through the third condensate return pipe 23.

[0043] Beneficial effects of the utility model: The utility model proposes an energy-saving secondary rotary dehumidification air-conditioning system, which is connected to the input ends of the first regeneration heating section 73 and the second regeneration heating section 112 through an external high-temperature steam source through a first high-temperature steam supply pipe 17, and the output ends of the first regeneration heating section 73 and the second regeneration heating section 112 are both connected to a drain valve group 18, and the output ends of the first regeneration heating section 73 and the second regeneration heating section 112 are connected to the liquid input end of the drain valve group 18 through a first condensate return pipe 19, the first high-temperature steam supply pipe 17 is connected to the steam input end of the drain valve group 18 through a second high-temperature steam supply pipe 20, and the liquid output end of the drain valve group 18 is connected to the condensate main pipe through a second condensate return pipe 21, and the drain valve group 18 replaces the existing electric valve and cooperates with the water collection tray to recover condensate, thereby ensuring cleanliness and reducing costs.

[0044] Although the present application has disclosed multiple aspects and embodiments, other aspects and embodiments will be obvious to those skilled in the art, and several modifications and improvements may be made without departing from the concept of the present application, all of which belong to the protection scope of the present application. The multiple aspects and embodiments disclosed in the present application are only for illustration and are not intended to limit the present application. The actual protection scope of the present application shall be subject to the claims.

Claims

1. An energy-saving secondary rotary dehumidification air conditioning system, comprising an air conditioning unit (1), wherein the air conditioning unit (1) is provided with an air inlet (2), a first filtering section (3), a first heating section (4), a first surface cooling section (5), a second surface cooling section (6), a first rotary dehumidification section (7), an air return port (8), a first fan (9), a third surface cooling section (10), a second rotary dehumidification section (11), a fourth surface cooling section (12), a second heating section (13), a second fan (14), a second filtering section (15), and a first air outlet (16) from left to right, characterized in that: The first rotary dehumidification section (7) and the second rotary dehumidification section (11) form a rotary dehumidification chamber. The first rotary dehumidification section (7) comprises a third fan (71), a first treatment section (72), and a first regeneration heating section (73). The second rotary dehumidification section (11) comprises a second treatment section (111) and a second regeneration heating section (112). The chamber is provided with the second regeneration heating section (112), the second treatment section (111), the first regeneration heating section (73), the first treatment section (72), the third fan (71), and the second air outlet in sequence from right to left. An external high-temperature steam source is connected to the first high-temperature steam supply pipe (17) and the second high-temperature steam supply pipe (17). The input ends of a regenerative heating section (73) and a second regenerative heating section (112) are connected, and the output ends of the first regenerative heating section (73) and the second regenerative heating section (112) are both connected to a steam trap group (18). The output ends of the first regenerative heating section (73) and the second regenerative heating section (112) are connected to the liquid input end of the steam trap group (18) through a first condensate return pipe (19), the first high-temperature steam supply pipe (17) is connected to the steam input end of the steam trap group (18) through a second high-temperature steam supply pipe (20), and the liquid output end of the steam trap group (18) is connected to the condensate main pipe through a second condensate return pipe (21).

2. The energy-saving secondary rotary dehumidification air conditioning system according to claim 1, characterized in that: The steam trap group (18) comprises a steam trap pump (181), one end of the steam trap pump (181) is provided with a first liquid inlet (182), and the other end of the steam trap pump (181) is provided with a first liquid outlet (183), the output ends of the first regeneration heating section (73) and the second regeneration heating section (112) are both connected to the first liquid inlet (182) through a first condensate return pipe (19), and the first liquid outlet (183) is connected to the condensate return pipe (21) through a second condensate return pipe (21). A steam inlet (184) is provided at one end of the top of the steam trap pump (181), and an exhaust port (185) is provided at the other end of the top of the steam trap pump (181). The first steam inlet (184) is connected to the first high-temperature steam supply pipe (17) through a second high-temperature steam supply pipe (20), and the exhaust port (185) is connected to an external exhaust port (185) through a first exhaust pipe (22). The first exhaust pipe (22) discharges the generated air to the outside.

3. The energy-saving secondary rotary dehumidification air conditioning system according to claim 1, characterized in that: The first condensate return pipe (19) is provided with a first pressure sensor (191), a first ball valve (192), and a first Y-type filter (193) from left to right, wherein the first pressure sensor (191) is used to monitor the condensate pressure in the pipe in front of the liquid input end of the steam trap pump (181), the first ball valve (192) is used to control the opening and closing of the pipe, and the first Y-type filter (193) is used to perform preliminary filtering on the condensate in the pipe; the second condensate return pipe (21) is provided with a second ball valve (211), a second pressure sensor (212), and a first check valve (213) from left to right, wherein the second ball valve (211) is used to control the opening and closing of the pipe, the second pressure sensor (212) is used to monitor the condensate pressure in the pipe at the rear of the liquid output end of the steam trap pump (181), and the first check valve (213) is used to prevent the condensate from flowing back.

4. The energy-saving secondary rotary dehumidification air conditioning system according to claim 1, characterized in that: The second high-temperature steam supply pipe (20) is provided with a third ball valve (201), a second Y-type filter (202), and a third pressure sensor (203) from top to bottom. The third ball valve (201) is used to control the opening and closing of the pipe, the second Y-type filter (202) is used to perform preliminary filtering on the steam, and the third pressure sensor (203) is used to monitor the gas pressure in the pipe in front of the steam input end of the steam trap pump (181).

5. The energy-saving secondary rotary dehumidification air conditioning system according to claim 1, characterized in that: A third condensate return pipe (23) is also provided between the second high-temperature steam supply pipe (20) and the second condensate return pipe (21), which is used to input part of the condensate in the steam into the second condensate return pipe (21) and enter the condensation main pipe. The second high-temperature steam supply pipe (20) is connected to the second condensate return pipe (21) through the third condensate return pipe (23). The third condensate return pipe (23) is provided with a first steam trap (231), a second check valve (232), and a fourth ball valve (233) from left to right. The first steam trap (231) is used to discharge the liquid accumulated in the third condensate return pipe (23), the second check valve (232) is used to prevent the liquid from flowing back, and the fourth ball valve (233) is used to control the opening and closing of the pipeline.

6. The energy-saving secondary rotary dehumidification air conditioning system according to claim 1, characterized in that: A third check valve (221), a first water vapor separator (222), and a fifth ball valve (223) are sequentially arranged on the first exhaust pipe (22) from left to right. The third check valve (221) is used to prevent gas backflow, the first water vapor separator (222) is used to separate water and steam so that air is discharged from the pipe, and the fifth ball valve (223) is used to control the opening and closing of the pipe.

7. The energy-saving secondary rotary dehumidification air conditioning system according to claim 1, characterized in that: A second exhaust pipe (24) is also provided on the side of the first condensate return pipe (19). The first condensate return pipe (19) is connected to the first exhaust pipe (22) through the second exhaust pipe (24). A sixth ball valve (241) is provided on the second exhaust pipe (24). The second exhaust pipe (24) is used to replenish the exhaust gas into the first condensate return pipe (19) to ensure its pressure state, prevent the generation of negative pressure, and reduce damage to the steam trap pump (181).

8. The energy-saving secondary rotary dehumidification air conditioning system according to claim 1, characterized in that: The output end of the air conditioning unit (1) is connected to the fresh air input end of the workshop (25) through a pipeline, and the return air end of the workshop (25) is connected to the return air outlet (8) of the air conditioning unit (1) through a pipeline.

9. The energy-saving secondary rotary dehumidification air conditioning system according to claim 1, characterized in that: The first filtering section (3) includes a G4 primary filter and an F7 medium filter, which are arranged in sequence from left to right. The second filtering section (15) includes an F8 medium filter and an H13 sub-high efficiency filter, which are arranged in sequence from left to right.

10. The energy-saving secondary rotary dehumidification air conditioning system according to claim 1, characterized in that: A first butterfly valve (171), a first electric valve (172), a third Y-type filter (173), and a second butterfly valve (174) are sequentially arranged on the first high-temperature steam supply pipe (17) from left to right.

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