Multi-effect energy-saving rotating wheel dehumidification system

Abstract

The invention discloses a multi-effect energy-saving rotating wheel dehumidification system which comprises a water cooling condenser, a first finned evaporator, a second finned evaporator, a first finned condenser, a second finned condenser, a rotating wheel dehumidifier and a refrigeration compressor. The output end of the water cooling condenser is connected with the input end of the first finned evaporator and the input end of the second finned evaporator in a communicating mode, and the output end of the second finned evaporator is connected with the input end of the first finned evaporator and the input end of the refrigeration compressor in a communicating mode. The output end of the refrigeration compressor is communicated and connected with the input end of the first finned condenser and the input end of the second finned condenser; the output end of the first fin type condenser and the output end of the second fin type condenser are connected with the input end of the water cooling condenser, the input end of the first fin type evaporator and the input end of the second fin type evaporator in a communicating mode through a second pipeline. Various dehumidification modes can be provided, the energy-saving effect is good, and the user experience degree is improved.

Description

Technical Field

[0001] The invention relates to the technical field of dehumidification devices, in particular to a multi-effect energy-saving rotary dehumidification system. Background Art

[0002] Rotary dehumidifiers are usually used in underground workshops of power plants or other humid environments to cool and dehumidify the environment, provide dry air at a suitable temperature, and protect the relevant equipment in the environment. Existing rotary dehumidifier systems can only provide one dehumidification mode regardless of the environmental changes they face. This means that when faced with different factors such as the moisture content of the environment, it is impossible to provide different dehumidification modes according to specific scenarios, and it is impossible to provide different dehumidification amounts, and it is also impossible to adjust the dehumidification mode according to needs to achieve energy-saving effects. For this reason, a dehumidification system that is more energy-efficient and can provide multiple dehumidification modes is needed. Summary of the invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide a multi-effect energy-saving rotary dehumidification system, which can solve the problems described in the background technology.

[0004] The technical solution for achieving the purpose of the present invention is: a multi-effect energy-saving rotary dehumidification system, comprising a water-cooled condenser, a first finned evaporator, a second finned evaporator, a first finned condenser, a second finned condenser, a rotary dehumidifier and a refrigeration compressor, The output end of the water-cooled condenser is connected to the input end of the first fin-type evaporator and the input end of the second fin-type evaporator respectively, the output end of the second fin-type evaporator is connected to the input end of the first fin-type evaporator and the input end of the refrigeration compressor respectively, the output end of the refrigeration compressor is connected to the input end of the first fin-type condenser and the input end of the second fin-type condenser, the output end of the first fin-type condenser and the output end of the second fin-type condenser are connected to the input end of the water-cooled condenser, the input end of the first fin-type evaporator, and the input end of the second fin-type evaporator respectively through the second pipeline, The second finned condenser is located on the regeneration wind path, which includes a first path and a second path. The wind directions of the first path and the second path are exactly opposite. The second finned condenser is located on the first path. The rotary dehumidifier spans the air inlet path and the first path of the regeneration wind path. The end of the air inlet path is connected to the front end of the regeneration air path, and the air flowing out from the end of the air inlet path can be redirected to flow into the regeneration air path.

[0005] Furthermore, it also includes a proportional integral three-way water valve, a water inlet pipe and a water outlet pipe. The first end of the proportional integral three-way water valve and the refrigerant inlet of the water-cooled condenser are connected to the water inlet pipe, the second end of the proportional integral three-way water valve is connected to the water outlet pipe, and the third end of the proportional integral three-way water valve is connected to the refrigerant outlet of the water-cooled condenser.

[0006] Furthermore, a temperature sensor and a third pressure sensor are installed on the water outlet pipe, and the temperature sensor and the third pressure sensor are electrically connected to the proportional-integral three-way water valve.

[0007] Furthermore, the water-cooled condenser is connected to the first finned evaporator and the second finned evaporator through pipelines, and a one-way valve, a drying filter and a throttling expansion valve are also installed on the communication path between the water-cooled condenser and the first finned evaporator and the second finned evaporator.

[0008] Furthermore, a first pressure sensor is installed on the communication path between the second fin-type evaporator and the refrigeration compressor. The second fin-type evaporator is connected to the input end of the first fin-type evaporator and the input end of the refrigeration compressor through a first pipeline, and the refrigeration compressor is connected to the first fin-type condenser and the second fin-type condenser through a pipeline.

[0009] Furthermore, a second pressure sensor is installed on the connecting pipeline between the refrigeration compressor and the first fin-type condenser and the second fin-type condenser.

[0010] Furthermore, it also includes a precooling surface cooler and a regeneration surface cooler, the outlet pipe is connected to the first input end of the regeneration surface cooler and the first input end of the precooling surface cooler through the outlet pipe, and the inlet pipe is connected to the second input end of the regeneration surface cooler and the second input end of the precooling surface cooler through the inlet pipe. Along the wind direction, the precooling surface cooler, the first finned evaporator, the second finned evaporator, and the first finned condenser are sequentially arranged on the air inlet path, and the regeneration surface cooler is located on the regeneration air path.

[0011] Furthermore, a filter is installed in front of the pre-cooling surface cooler.

[0012] Furthermore, it also includes an electric heater, and the second finned condenser, the electric heater and the regenerative surface cooler are all arranged in sequence on the regeneration wind path along the wind direction.

[0013] Furthermore, a regenerative heat recovery machine is also included, and the regenerative heat recovery machine spans the first path and the second path of the regenerative wind path. The regenerative heat recovery machine includes a first channel and a second channel, and the inner cavities of the first channel and the second channel are connected to each other. The first channel is located on the first path, and the second channel is located on the second path. The rotary dehumidifier is located at the end of the first path, and the regenerative heat recovery machine spans the front end of the first path and the end of the second path.

[0014] The beneficial effects of the present invention are: the present invention can provide three dehumidification modes according to different scene requirements, with better energy-saving effect, can better meet customer needs, and improve user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the principle of embodiment 1; Figure 2 This is a schematic diagram of the structural connection of the first embodiment; In the figure, 1-first pipeline, 2-second pipeline, 3-water inlet pipeline, 4-water outlet pipeline, 5-first pressure sensor, 6-second pressure sensor, 7-temperature sensor, 8-third pressure sensor, 9-proportional integral three-way water valve, 10-solenoid valve, 11-check valve, 12-drying filter, 13-throttling expansion valve, 14-first air blower, 15-first finned condenser, 16-second finned condenser, 17-first finned evaporator, 18-second finned evaporator, 19-precooling surface cooler, 20-regeneration surface cooler, 21-filter, 22-rotary dehumidifier, 23-electric heater, 24-refrigeration compressor, 25-regeneration heat recovery machine, 26-water-cooled condenser, 27-second air blower, The arrows in the figure indicate the flow direction. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments: like Figure 1-Figure 2 As shown, a multi-effect energy-saving rotary dehumidification system includes a proportional integral three-way water valve 9, a water-cooled condenser 26, a pre-cooling surface cooler 19, a first finned evaporator 17, a second finned evaporator 18, a first finned condenser 15, a second finned condenser 16, a rotary dehumidifier 22, a regenerative heat recovery machine 25, a refrigeration compressor 24, a regenerative surface cooler 20 and an electric heater 23. The first end of the proportional integral three-way water valve 9 and the refrigerant inlet of the water-cooled condenser 26 are both connected to the water inlet pipe (not shown in the figure) to introduce an external water source through the water inlet pipe. The introduced external water source can be low-temperature groundwater or other water sources. For example, in the underground plant of a hydropower plant, water from a reservoir can be introduced. The second end of the proportional integral three-way water valve 9 is connected to the outlet pipe, and the outlet pipe is used to discharge the water flow inside the rotary dehumidification system to the outside. The third end of the proportional integral three-way water valve 9 is connected to the refrigerant outlet of the water-cooled condenser 26.

[0017] In an optional embodiment, a temperature sensor 7 and a third pressure sensor 8 are also installed on the water outlet pipe, and the temperature sensor 7 and the third pressure sensor 8 are electrically connected to the proportional integral three-way water valve 9 so that the opening and closing degree of the proportional integral three-way water valve 9 can be adjusted according to the temperature and pressure parameters measured by the temperature sensor 7 and the third pressure sensor 8.

[0018] The water outlet pipe is also connected to the first input end of the regenerative surface cooler 20 and the first input end of the precooling surface cooler 19 through the water outlet pipe 4, and the water inlet pipe is also connected to the second input end of the regenerative surface cooler 20 and the second input end of the precooling surface cooler 19 through the water inlet pipe 3.

[0019] The output end of the water-cooled condenser 26 is connected to the input end of the first finned evaporator 17 and the input end of the second finned evaporator 18 respectively, and the water-cooled condenser 26 can be connected to the first finned evaporator 17 and the second finned evaporator 18 through a pipeline. A one-way valve 11, a drying filter 12 and a throttling expansion valve 13 are also installed on the communication path between the water-cooled condenser 26 and the first finned evaporator 17 and the second finned evaporator 18.

[0020] The drying filter 12 is used to filter impurities and absorb moisture, and the throttling expansion valve 13 is used for throttling. A one-way valve 11 is also installed on the communication path, and the one-way valve 11 is located on one side of the communication path close to the output end of the water-cooled condenser 26.

[0021] The input end of the filter drier 12 is provided with a coarse metal mesh, and the outlet end is provided with a fine metal mesh, so that larger particles of impurities can be effectively filtered out, and a desiccant with excellent moisture absorption properties is placed between the two metal meshes to absorb moisture in the refrigerant output from the output end of the water-cooled condenser 26, so as to ensure that the communication path is unobstructed and the refrigerant can be used normally in the subsequent finned evaporator. The communication path can be a capillary tube or other types of pipelines.

[0022] The throttling expansion valve 13 plays a throttling role by adjusting the flow rate, which can convert the high-temperature and high-pressure liquid refrigerant into a low-temperature and low-pressure mist refrigerant, creating conditions for the evaporation of the refrigerant. It can also automatically adjust the refrigerant flow entering the evaporator according to the heat signal obtained by the temperature sensor 7 to adapt to the change of the refrigeration load. At the same time, it can also maintain the superheat. By adjusting the flow rate, it can keep the evaporator within a certain superheat range to prevent abnormal overheating.

[0023] The output end of the second finned evaporator 18 is respectively connected to the input end of the first finned evaporator 17 and the input end of the refrigeration compressor 24, and a first pressure sensor 5 is also installed on the communication path between the second finned evaporator 18 and the refrigeration compressor 24. The second finned evaporator 18 can be respectively connected to the input end of the first finned evaporator 17 and the input end of the refrigeration compressor 24 through the first pipeline 1.

[0024] The output end of the refrigeration compressor 24 is connected to the input end of the first fin-type condenser 15 and the input end of the second fin-type condenser 16 . The refrigeration compressor 24 may be connected to the first fin-type condenser 15 and the second fin-type condenser 16 through pipelines.

[0025] In an optional embodiment, a second pressure sensor 6 is further installed on the connecting pipeline between the refrigeration compressor 24 and the first fin-type condenser 15 and the second fin-type condenser 16 .

[0026] The output end of the first finned condenser 15 and the output end of the second finned condenser 16 are respectively connected to the input end of the water-cooled condenser 26 and the pipeline where the drying filter 12 is located through the second pipeline 2, and a solenoid valve 10 is also installed on the second pipeline 2. The first finned condenser 15 and the second finned condenser 16 are connected to the first finned evaporator 17 and the second finned evaporator 18 through the pipeline where the drying filter 12 is located.

[0027] In an optional embodiment, a filter 21 is installed in front of the pre-cooling surface cooler 19. The filter 21 is used to filter out impurities such as dust. The filter 21 is located at the upper air outlet ( Figure 1 Position A is within the upwind range).

[0028] Along the wind direction, the pre-cooling surface cooler 19, the first fin-type evaporator 17, the second fin-type evaporator 18, and the first fin-type condenser 15 are sequentially arranged on the air inlet path.

[0029] The second fin-type condenser 16, the electric heater 23 and the regenerative surface cooler 20 are all located on the regeneration wind path and are arranged in sequence along the wind direction. The regeneration wind path includes a first path and a second path. The wind directions of the first path and the second path are exactly opposite. The second fin-type condenser 16 and the electric heater 23 are located on the first path, and the regenerative surface cooler 20 is located on the second path.

[0030] The rotary dehumidifier 22 spans the first path of the air inlet path and the regeneration air path, and the regeneration heat recovery machine 25 spans the first path and the second path of the regeneration air path. The regeneration heat recovery machine 25 includes a first channel and a second channel, the inner cavities of the first channel and the second channel are connected to each other, the first channel is located on the first path, and the second channel is located on the second path.

[0031] The end of the air inlet path (i.e., the final air outlet) is connected to the front end of the regeneration air path (i.e., the initial air inlet), and the air flowing out of the end of the air inlet path can be redirected and flow into the regeneration air path. The end of the air inlet path and the front end of the regeneration air path are in the same air-circulating space.

[0032] Figure 1 In the figure, A→B→C→E→F→G is the air inlet path along the wind direction. O→P→Q→R→S is the regeneration wind path along the wind direction, O→P is the first path, and Q→R→S is the second path.

[0033] In an optional embodiment, a first air blower 14 is further provided behind the first finned condenser 15 on the air inlet path along the wind direction.

[0034] In an optional embodiment, a second blower 27 is further provided behind the regenerative cooler 20 on the regeneration air path along the wind direction.

[0035] The air inlet path and the regeneration air path may be pipelines or spatial channels (such as rooms) in a building through which air can flow.

[0036] The rotary dehumidifier 22 is located at the end of the first path, and the regenerative heat recovery machine 25 spans the front end of the first path and the end of the second path.

[0037] In actual use, the wet air flowing in from the upper air outlet A first passes through the pre-cooling surface cooler 19 for primary dehumidification, then flows into the second finned evaporator 18 for dehumidification, and then flows into the rotary dehumidifier 22 for treatment. The treated air becomes a high-temperature and low-humidity state. The high-temperature and low-humidity air then flows into the first finned evaporator 17 and is cooled to obtain low-humidity air with a suitable temperature. Among them, if the temperature of the air output after treatment by the rotary dehumidifier 22 is low, it can be heated by the first finned condenser 15. Thus, three dehumidification modes can be provided according to different scenarios.

[0038] Dehumidification mode 1: using the pre-cooling surface cooler 19 for pre-dehumidification.

[0039] Dehumidification mode 2: After pre-dehumidification using the pre-cooling surface cooler 19, two finned evaporators are continued to be used for deep dehumidification.

[0040] Dehumidification mode three: On the basis of dehumidification mode two, that is, after pre-dehumidification using the pre-cooling surface cooler 19, two finned evaporators and a rotary dehumidifier 22 are continued to be used for maximum depth dehumidification to achieve the highest dehumidification capacity, which can meet the application scenarios of large factories and workshops with groundwater and other spaces requiring a large dehumidification capacity.

[0041] The above three dehumidification modes can be manually or automatically selected according to the air humidity content at the upwind outlet, and on the premise of meeting the dehumidification requirements, energy saving can be achieved by shutting down corresponding equipment components.

[0042] The dry air output from the air inlet path becomes regeneration air, and the regeneration air passes through the regeneration heat recovery machine 25 twice on the first path and the second path, which can preheat the regeneration air and achieve energy saving effect. The air output by the regeneration heat recovery machine 25 is first heated once by the second finned condenser 16 (can be heated to about 70°C), and then heated before entering the electric heater 23, which can effectively save the electric power of the electric heater 23 and achieve energy saving effect.

[0043] The unused condensation heat of the first finned condenser 15 and the second finned condenser 16 can be dissipated through the water-cooled condenser 26, and the water-cooled condenser 26 does not need a cooling water tower and can directly use groundwater for heat dissipation, thereby achieving energy-saving effects.

[0044] For the wet air (i.e., regeneration air) of the regeneration exhaust, in order to reduce the connection and the power distribution of the blower, although it can be discharged near the unit, the wet air can easily be directly sucked into the unit together with the treated air, which may cause the machine room environment to be too humid. In order to avoid this situation, a surface cooler is configured at the same time. The surface cooler is connected to low-temperature groundwater inside, so that the moisture on the air side can be directly condensed into condensed water and then directly discharged into the ditch.

[0045] The present invention can provide three dehumidification modes according to different scene requirements, has better energy-saving effect, can better meet customer needs, and improve user experience.

[0046] The embodiment disclosed in this specification is only an example of a unilateral feature of the present invention, and the protection scope of the present invention is not limited to this embodiment, and any other functionally equivalent embodiments fall within the protection scope of the present invention. For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims

1. A multi-effect energy-saving rotary dehumidification system, characterized in that: It includes a water-cooled condenser, a first finned evaporator, a second finned evaporator, a first finned condenser, a second finned condenser, a rotary dehumidifier and a refrigeration compressor. The output end of the water-cooled condenser is connected to the input end of the first fin-type evaporator and the input end of the second fin-type evaporator respectively, the output end of the second fin-type evaporator is connected to the input end of the first fin-type evaporator and the input end of the refrigeration compressor respectively, the output end of the refrigeration compressor is connected to the input end of the first fin-type condenser and the input end of the second fin-type condenser, and the output end of the first fin-type condenser and the output end of the second fin-type condenser are connected to the input end of the water-cooled condenser, the input end of the first fin-type evaporator, and the input end of the second fin-type evaporator respectively through the second pipeline; The second fin-type condenser is located on the regeneration air path, which includes a first path and a second path. The wind directions of the first path and the second path are exactly opposite. The second fin-type condenser is located on the first path. The rotary dehumidifier spans the air inlet path and the first path of the regeneration air path. The end of the air inlet path is connected to the front end of the regeneration air path, and the air flowing out from the end of the air inlet path can be redirected and flow into the regeneration air path.

2. The multi-effect energy-saving rotary dehumidification system according to claim 1 is characterized in that: It also includes a proportional integral three-way water valve, a water inlet pipe and a water outlet pipe. The first end of the proportional integral three-way water valve and the refrigerant inlet of the water-cooled condenser are connected to the water inlet pipe, the second end of the proportional integral three-way water valve is connected to the water outlet pipe, and the third end of the proportional integral three-way water valve is connected to the refrigerant outlet of the water-cooled condenser.

3. The multi-effect energy-saving rotary dehumidification system according to claim 2 is characterized in that: A temperature sensor and a third pressure sensor are also installed on the water outlet pipe, and the temperature sensor and the third pressure sensor are electrically connected to the proportional integral three-way water valve.

4. The multi-effect energy-saving rotary dehumidification system according to claim 3 is characterized in that: The water-cooled condenser is connected to the first finned evaporator and the second finned evaporator through pipelines. A one-way valve, a drying filter and a throttling expansion valve are also installed on the communication path between the water-cooled condenser and the first finned evaporator and the second finned evaporator.

5. The multi-effect energy-saving rotary dehumidification system according to claim 4 is characterized in that: A first pressure sensor is also installed on the communication path between the second fin evaporator and the refrigeration compressor. The second fin evaporator is connected to the input end of the first fin evaporator and the input end of the refrigeration compressor through a first pipeline, and the refrigeration compressor is connected to the first fin condenser and the second fin condenser through a pipeline.

6. The multi-effect energy-saving rotary dehumidification system according to claim 5, characterized in that: A second pressure sensor is also installed on the connecting pipeline between the refrigeration compressor and the first fin-type condenser and the second fin-type condenser.

7. The multi-effect energy-saving rotary dehumidification system according to claim 6, characterized in that: It also includes a precooling surface cooler and a regeneration surface cooler. The outlet pipe is connected to the first input end of the regeneration surface cooler and the first input end of the precooling surface cooler through the outlet pipe, and the inlet pipe is connected to the second input end of the regeneration surface cooler and the second input end of the precooling surface cooler through the inlet pipe. Along the wind direction, the precooling surface cooler, the first fin evaporator, the second fin evaporator, and the first fin condenser are arranged in sequence on the air inlet path, and the regeneration surface cooler is located on the regeneration air path.

8. The multi-effect energy-saving rotary dehumidification system according to claim 7, characterized in that: A filter is also installed in front of the precooling surface cooler.

9. The multi-effect energy-saving rotary dehumidification system according to claim 8, characterized in that: It also includes an electric heater. The second finned condenser, the electric heater and the regenerative surface cooler are all arranged in sequence on the regeneration wind path along the wind direction.

10. The multi-effect energy-saving rotary dehumidification system according to claim 9, characterized in that: It also includes a regenerative heat recovery machine, which spans the first path and the second path of the regenerative wind path; the regenerative heat recovery machine includes a first channel and a second channel, the inner cavities of the first channel and the second channel are connected to each other, the first channel is located on the first path, and the second channel is located on the second path, the rotary dehumidifier is located at the end of the first path, and the regenerative heat recovery machine spans the front end of the first path and the end of the second path.

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