Energy-saving combined drying machine
By using a combined design of a cold dryer, a refrigerator, an induction device, a drying tower, a regenerated air compressed hot air heat exchanger and an electric heater in a combined dryer, the internal circulation of the regenerated air flow and a multi-valve group are solved by using the internal circulation of the regenerated air flow. The problem of high energy consumption of traditional combined dryers is achieved, and zero gas consumption and energy-saving effects are achieved.
Patent Information
- Application Number
- CN202421037161.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The energy consumption of the suction dryer in traditional combination dryers is large and cannot meet the energy saving requirements.
Energy-saving combined dryer including a cold dryer, a regenerative air compressed hot air heat exchanger, an electric heater and a regenerative gas heat exchanger, through the internal circulation of the regenerative gas flow and multiple valves The design of the group realizes multiple utilization and regenerative heating of air and reduces energy consumption.
It achieves the drying effect of zero gas consumption, reduces energy consumption, and meets energy saving requirements.
Smart Images
Figure CN222324753U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air drying, in particular to an energy-saving combined drying machine. Background Art
[0002] At present, refrigerated dryers and adsorption dryers are widely used in the air compressor post-processing industry. Combining the two together is a combined dryer. The function of the combined dryer is to first use the cold dryer to preliminarily remove water from the compressed air and control the compressed air pressure dew point above 0°C; then use the adsorption dryer to further remove water from the compressed air and control the compressed air pressure dew point below 0°C. The cold dryer and adsorption dryer are used to dry the air respectively, so as to achieve the purpose of ensuring the compressed air outlet pressure dew point performance and saving energy consumption.
[0003] However, most of the existing combined dryers use air consumption models or zero-gas consumption blast heat models, which have relatively high energy consumption. Therefore, the traditional combined dryers cannot meet the energy-saving requirements. Utility Model Content
[0004] The utility model aims to provide an energy-saving combined dryer, which solves the problem that the traditional combined dryer cannot meet the energy-saving requirements.
[0005] To achieve the above-mentioned purpose, the utility model adopts an energy-saving combined dryer, including a cold and dryer heat exchanger, a refrigerator, an ejector, a first drying tower, a regenerated gas compressed hot air heat exchanger, an electric heater, a second drying tower and a regenerated gas heat exchanger, the refrigerator is connected to the cold and dryer heat exchanger and the regenerated gas heat exchanger, the ejector is respectively connected to the cold and dryer heat exchanger, the regenerated gas heat exchanger, the first drying tower and the second drying tower, the regenerated gas heat exchanger is respectively connected to the first drying tower and the second drying tower, and the electric heater is respectively connected to the first drying tower, the second drying tower and the regenerated gas compressed hot air heat exchanger.
[0006] Wherein, the energy-saving combined dryer also includes a valve group; the valve group includes a first valve, a second valve, a third valve and a fourth valve, the first valve is arranged at the top of the second drying tower, the second valve is arranged at the top of the first drying tower, the third valve is arranged between the electric heater and the second drying tower, and the fourth valve is arranged between the electric heater and the first drying tower.
[0007] Wherein, the valve group further includes a fifth valve and a sixth valve, the fifth valve is arranged at the middle end of the second drying tower, and the sixth valve is arranged at the middle end of the first drying tower.
[0008] Wherein, the valve group further includes a seventh valve and an eighth valve, the seventh valve is arranged between the regeneration gas heat exchanger and the second drying tower, and the eighth valve is arranged between the regeneration gas heat exchanger and the first drying tower.
[0009] Wherein, the valve group further includes a ninth valve and a tenth valve, the ninth valve is arranged between the ejector and the second drying tower, and the tenth valve is arranged between the ejector and the first drying tower.
[0010] The utility model is an energy-saving combined dryer, in which air first enters the cold dryer heat exchanger, and the air is cooled by the cold provided by the refrigerator. The cooled air enters the ejector, and after mixing with the regeneration air flow cooled by the regeneration air heat exchanger, enters the first drying tower for adsorption drying. Part of the outlet air is separated from the outlet pipeline as the regeneration air flow, and the regeneration air flow first passes through the regeneration air compression hot air heat exchanger to compress the hot air for preheating. The preheated regeneration air flow then flows into the electric heater for further heating. The regeneration heating air flow enters the second drying tower from the top and the middle part respectively, and the regeneration heating air flow heats and desorbs the adsorbent in the second drying tower. The regeneration heating air flow carries the desorbed moisture and flows out of the second drying tower and enters the regeneration air heat exchanger, and the regeneration heating air flow is cooled by the cold provided by the refrigerator. After the cooled regeneration air flow flows out of the regeneration air heat exchanger, it enters the ejector and mixes with the air coming out of the cold dryer heat exchanger, thereby completing the internal circulation of the regeneration air flow. The regeneration gas compressed hot air heat exchanger is used as a regeneration gas flow preheating device, and compressed hot air is used as a heat source, which can effectively reduce the regeneration heating energy consumption; the ejector is used as a regeneration gas reflux device, and the ejector principle is used to guide part of the outlet air as a regeneration gas flow to desorb the adsorbent. The regeneration gas flow circulates inside the energy-saving combined dryer and is not discharged to the outside, thereby achieving the purpose of zero gas consumption; through the above method, the energy-saving requirements can be met. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0012] Figure 1 It is a schematic diagram of the principle of the energy-saving combined drying machine of the utility model.
[0013] 1-cold dryer heat exchanger, 2-refrigerator, 3-ejector, 4-first drying tower, 5-regeneration gas compressed hot air heat exchanger, 6-electric heater, 7-second drying tower, 8-regeneration gas heat exchanger, 901-first valve, 902-second valve, 903-third valve, 904-fourth valve, 905-fifth valve, 906-sixth valve, 907-seventh valve, 908-eighth valve, 909-ninth valve, 910-tenth valve. DETAILED DESCRIPTION
[0014] See also Figure 1 ,in Figure 1 It is a schematic diagram of the principle of an energy-saving combined dryer.
[0015] The utility model provides an energy-saving combined dryer: comprising a cold dryer heat exchanger 1, a refrigerator 2, an ejector 3, a first drying tower 4, a regeneration gas compressed hot air heat exchanger 5, an electric heater 6, a second drying tower 7 and a regeneration gas heat exchanger 8, wherein the refrigerator 2 is connected to the cold dryer heat exchanger 1 and the regeneration gas heat exchanger 8, the ejector 3 is respectively connected to the cold dryer heat exchanger 1, the regeneration gas heat exchanger 8, the first drying tower 4 and the second drying tower 7, the regeneration gas heat exchanger 8 is respectively connected to the first drying tower 4 and the second drying tower 7, and the electric heater 6 is respectively connected to the first drying tower 4, the second drying tower 7 and the regeneration gas compressed hot air heat exchanger 5.
[0016] In this embodiment, air first enters the cold dryer heat exchanger 1, and the air is cooled by the cold provided by the refrigerator 2. The cooled air enters the ejector 3, and after mixing with the regeneration air flow cooled by the regeneration air heat exchanger 8, enters the first drying tower 4 for adsorption drying. Part of the outlet air is separated from the outlet pipeline as the regeneration air flow, and the regeneration air flow first passes through the regeneration air compression hot air heat exchanger 5 to compress the hot air for preheating. The preheated regeneration air flow then flows into the electric heater 6 for further heating. The regeneration heating air flow enters the second drying tower 7 from the top and the middle of the tower, and the regeneration heating air flow heats and desorbs the adsorbent in the second drying tower 7. The regeneration heating air flow carries the desorbed water and flows out of the second drying tower 7 and enters the regeneration air heat exchanger 8, and the regeneration heating air flow is cooled by the cold provided by the refrigerator 2. After the cooled regeneration air flow flows out of the regeneration air heat exchanger 8, it enters the ejector 3 and mixes with the air coming out of the cold dryer heat exchanger 1, thereby completing the internal circulation of the regeneration air flow. The regeneration gas compressed hot air heat exchanger 5 is used as a regeneration gas preheating device, and compressed hot air is used as a heat source, which can effectively reduce the regeneration heating energy consumption; the ejector 3 is used as a regeneration gas reflux device, and the ejector principle is used to guide part of the outlet air as a regeneration gas flow to desorb the adsorbent. The regeneration gas flow circulates inside the energy-saving combined dryer and is not discharged to the outside, thereby achieving the purpose of zero gas consumption; through the above method, the energy-saving requirements can be met.
[0017] Furthermore, the energy-saving combined dryer also includes a valve group; the valve group includes a first valve 901, a second valve 902, a third valve 903 and a fourth valve 904, the first valve 901 is arranged at the top of the second drying tower 7, the second valve 902 is arranged at the top of the first drying tower 4, the third valve 903 is arranged between the electric heater 6 and the second drying tower 7, and the fourth valve 904 is arranged between the electric heater 6 and the first drying tower 4.
[0018] Furthermore, the valve group further includes a fifth valve 905 and a sixth valve 906 , wherein the fifth valve 905 is disposed at the middle end of the second drying tower 7 , and the sixth valve 906 is disposed at the middle end of the first drying tower 4 .
[0019] Furthermore, the valve group also includes a seventh valve 907 and an eighth valve 908 . The seventh valve 907 is disposed between the regeneration gas heat exchanger 8 and the second drying tower 7 , and the eighth valve 908 is disposed between the regeneration gas heat exchanger 8 and the first drying tower 4 .
[0020] Furthermore, the valve group also includes a ninth valve 909 and a tenth valve 910 . The ninth valve 909 is disposed between the ejector 3 and the second drying tower 7 , and the tenth valve 910 is disposed between the ejector 3 and the first drying tower 4 .
[0021] In this embodiment, air first enters the cold dryer heat exchanger 1, and the air is cooled by the cold provided by the refrigerator 2. The cooled air enters the ejector 3, mixes with the regeneration air flow cooled by the regeneration air heat exchanger 8, flows through the tenth valve 910 and enters the first drying tower 4 for adsorption drying, and then flows through the second valve 902 and flows out from the outlet. Part of the outlet air is separated from the outlet pipeline as the regeneration air flow, and the regeneration air flow first passes through the regeneration air compression hot air heat exchanger 5 to compress the hot air for preheating. The preheated regeneration air flow then flows into the electric heater 6 for further heating. The regeneration heating air flow enters the second drying tower 7 from the top and the middle part through the third valve 903 and the fifth valve 905 respectively, and the regeneration heating air flow heats and desorbs the adsorbent in the second drying tower 7. The regeneration heating air flow carries the desorbed water and flows out of the second drying tower 7, passes through the seventh valve 907 and enters the regeneration air heat exchanger 8, and the regeneration heating air flow is cooled by the cold provided by the refrigerator 2. After the cooled regeneration airflow flows out of the regeneration air heat exchanger 8, it enters the ejector 3 and mixes with the air coming out of the cold dryer heat exchanger 1, thereby completing the internal circulation of the regeneration airflow. The regeneration air compressed hot air heat exchanger 5 is used as a regeneration airflow preheating device, and compressed hot air is used as a heat source, which can effectively reduce the regeneration heating energy consumption; the ejector 3 is used as a regeneration air return device, and the ejector principle is used to guide part of the outlet air as a regeneration airflow to desorb the adsorbent. The first drying tower 4 and the second drying tower 7 use the regeneration heating airflow diversion working principle, and the regeneration heating airflow is divided into the top and middle parts of the drying tower through the third valve 903, the fifth valve 905, the fourth valve 904, and the sixth valve 906 respectively, and enters the tower for heating and desorption. The regeneration airflow circulates inside the energy-saving combined dryer and is not discharged to the outside, thereby achieving the purpose of zero gas consumption; through the above method, energy-saving requirements can be met.
[0022] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.
Claims
1. An energy-saving combined dryer, characterized in that: It includes a cold and dryer heat exchanger, a refrigerator, an ejector, a first drying tower, a regenerated gas compressed hot air heat exchanger, an electric heater, a second drying tower and a regenerated gas heat exchanger. The refrigerator is connected to the cold and dryer heat exchanger and the regenerated gas heat exchanger. The ejector is respectively connected to the cold and dryer heat exchanger, the regenerated gas heat exchanger, the first drying tower and the second drying tower. The regenerated gas heat exchanger is respectively connected to the first drying tower and the second drying tower. The electric heater is respectively connected to the first drying tower, the second drying tower and the regenerated gas compressed hot air heat exchanger.
2. The energy-saving combined dryer according to claim 1, characterized in that: The energy-saving combined dryer also includes a valve group; the valve group includes a first valve, a second valve, a third valve and a fourth valve, the first valve is arranged at the top of the second drying tower, the second valve is arranged at the top of the first drying tower, the third valve is arranged between the electric heater and the second drying tower, and the fourth valve is arranged between the electric heater and the first drying tower.
3. The energy-saving combined dryer according to claim 2, characterized in that: The valve group further includes a fifth valve and a sixth valve. The fifth valve is disposed at the middle end of the second drying tower, and the sixth valve is disposed at the middle end of the first drying tower.
4. The energy-saving combined dryer according to claim 2, characterized in that: The valve group further includes a seventh valve and an eighth valve. The seventh valve is disposed between the regeneration gas heat exchanger and the second drying tower, and the eighth valve is disposed between the regeneration gas heat exchanger and the first drying tower.
5. The energy-saving combined dryer according to claim 2, characterized in that: The valve group further includes a ninth valve and a tenth valve. The ninth valve is arranged between the ejector and the second drying tower, and the tenth valve is arranged between the ejector and the first drying tower.