Compressed air dryer
By combining air-cooled heat dissipation and water-cooled heat dissipation in a compressed air dryer, the problems of overload of the compressor and stopping the dryer due to the inability to effectively cool the coolant in high-temperature environment are solved, and the stable operation of the compressor and normal operation of the dryer are achieved.
Patent Information
- Application Number
- CN202420854605.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-23
AI Technical Summary
When the external ambient temperature is higher than a certain temperature, the coolant with an increased temperature cannot be effectively cooled, resulting in an increase in the compressor working load, an alarm shutdown, and the dryer stops.
A compressed air dryer is designed, including heat exchange components and heat dissipation components. The heat exchange assembly includes a compressor, an evaporator and a heat exchanger, and the heat dissipation assembly includes a fan and a closed heat dissipation tower. By combining air-cooled heat dissipation and water-cooled heat dissipation, the cooling needs of refrigeration gas are met and the compressor is avoided.
It effectively avoids the compressor overload and dryer stop operation caused by the inability to effectively cool the refrigerant, ensuring the stable operation of the compressor and the normal operation of the dryer.
Smart Images
Figure CN222677668U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dryers, in particular to a compressed air dryer. Background Art
[0002] Compressed air dryer is a kind of equipment that dries the compressed air produced by air compressor. It is widely used in food processing, food packaging, medicine and chemical industry.
[0003] In the existing air-cooled freeze dryer, the refrigerant of the compressor inside the dryer exchanges heat with the compressed air through a plate heat exchanger. After the heat exchange, the temperature of the compressed air decreases, while the temperature of the refrigerant increases. The refrigerant with increased temperature is cooled by the fan again, and then re-enters the compressor for circulation. When the external ambient temperature is higher than a certain temperature (for example, 30 degrees), the refrigerant with increased temperature cannot be effectively cooled and will re-enter the compressor, which increases the workload of the compressor, causes an alarm and stops, and then causes the dryer to stop running. Therefore, a compressed air dryer is urgently needed to solve the above problems. Utility Model Content
[0004] In order to solve the technical problem that when the external ambient temperature is higher than a certain temperature (for example, 30 degrees), the refrigerant with increased temperature cannot be effectively cooled and will re-enter the compressor, thereby causing the dryer to stop running, the utility model provides a compressed air dryer to meet the cooling demand of the refrigerant gas, thereby avoiding the situation where the dryer stops running.
[0005] The utility model provides a compressed air dryer, comprising a frame, a heat exchange component and a heat dissipation component, wherein the heat exchange component comprises a compressor, an evaporator and a heat exchanger which are arranged in the frame and connected in sequence through a cooling pipe, wherein the compressor is also connected to the heat exchanger through a return pipe, wherein the heat dissipation component comprises a fan and a closed heat dissipation tower, wherein the fan is arranged in the frame and the air outlet of the fan faces the compressor, wherein the closed heat dissipation tower comprises a tower body and a cold water pump which are arranged in the frame and connected through a first pipe, wherein the tower body is also connected to the compressor through a second pipe, wherein the cold water pump is also connected to the return pipe through a third pipe, wherein a valve is arranged at the connection between the return pipe and the third pipe. When the valve is opened, the refrigerant gas enters the compressor through the return pipe, and the fan performs air cooling and heat dissipation on the refrigerant gas which has passed through the return pipe and has returned to the compressor. When the valve is closed, the refrigerant gas enters the compressor through the return pipe, the third pipe, the first pipe, the tower body and the second pipe, and the tower body performs water cooling and heat dissipation on the refrigerant gas which flows through it.
[0006] Furthermore, the tower body is provided with interconnected condensation inlet, condensation outlet and heat exchange cavity, the heat exchange cavity is provided with a condensation pipe and the condensation pipe is arranged in an annular coil, the tower body is also provided with a first interface and a second interface, one end of the condensation pipe is connected to the first pipe through the first interface, and the other end of the condensation pipe is connected to the second pipe through the second interface. External cold air or cold water is discharged into or out of the heat exchange cavity through the condensation inlet and the condensation outlet, and the cold air or cold water in the heat exchange cavity performs heat exchange with the refrigerant gas in the condensation pipe, so that the temperature of the refrigerant gas is reduced.
[0007] Furthermore, the heat dissipation assembly also includes a refrigerator disposed in the rack, and the condensation inlet and the condensation outlet are both connected to the refrigerator through an air intake pipe. The refrigerator discharges cold air into or out of the heat exchange cavity through the condensation inlet and the condensation outlet, and the cold air in the heat exchange cavity performs heat exchange with the refrigerant gas in the condensation pipe, so that the temperature of the refrigerant gas is reduced.
[0008] Furthermore, the heat dissipation assembly further includes a cold water tank disposed in the rack, the condensation inlet and the condensation outlet are both connected to the cold water tank through a water pipe, and a water pump is disposed on the water pipe. The water pump discharges cold water from the cold water tank into or out of the heat exchange cavity through the condensation inlet and the condensation outlet, and the cold water in the heat exchange cavity performs heat exchange with the refrigerant gas in the condensation pipe, so that the temperature of the refrigerant gas is reduced.
[0009] Furthermore, the heat dissipation assembly also includes a spray pipe arranged in the frame, the spray pipe is connected to the cold water tank, the water spray port of the spray pipe faces the compressor, and the frame is detachably provided with a wastewater collection frame, the wastewater collection frame is located below the compressor. The cold water sprayed from the water spray port of the spray pipe can dissipate the surface heat of the compressor, thereby cooling it and the refrigerant gas inside it. The wastewater collection frame will recycle the above-mentioned cold water (that is, wastewater) to avoid polluting the internal environment of the frame.
[0010] Furthermore, the frame is provided with an embedded groove and a plurality of fixing columns located around the embedded groove, and the wastewater collection frame is provided with a plurality of fixing holes, and the wastewater collection frame can be inserted into the embedded groove and each fixing column can pass through the fixing hole. The embedded groove makes way for the wastewater collection frame, and the fixing columns and the fixing holes enable the wastewater collection frame to be stably stuck on the embedded groove. After the wastewater collection frame is disassembled, the wastewater inside it can be processed in the next step.
[0011] Furthermore, the dryer further comprises a linear module and a shell, the linear module is arranged on a frame, the slider of the linear module is fixedly connected to the shell, the shell cover is arranged on the frame to form a closed space, the heat exchange component and the heat dissipation component are both located in the closed space; the heat dissipation component further comprises a ventilation duct and an air refrigerator arranged on the shell and located outside the closed space, and the two ends of the ventilation duct are respectively connected to the air refrigerator and the shell. When the external ambient temperature is too high, in order to improve the efficiency of water cooling or air cooling, the linear module is started, driving the shell cover to be arranged on the frame to form a closed space, at which time the air refrigerator can transport cool air to the closed space through the ventilation duct to reduce the temperature in the closed space.
[0012] Furthermore, the heat exchange assembly also includes a water vapor separator disposed in the rack, the water vapor separator is connected to the heat exchanger through a fourth pipe, and a drainer is disposed on the water vapor separator. External air enters the heat exchanger to perform heat exchange with the refrigerant gas in the heat exchanger, and then the external air continues to separate air from water in the water vapor separator and heat exchange again in the heat exchanger to increase the temperature, and then the dry low-temperature cold air is discharged from the heat exchanger.
[0013] Compared with the prior art, the utility model has the following technical effects:
[0014] After the temperature of the refrigerant gas rises, before it returns to the compressor, the valve is opened, and the refrigerant gas enters the compressor through the return pipe, and the fan performs air cooling on the refrigerant gas that has returned to the compressor. When the external ambient temperature is higher than a certain temperature (for example, 30 degrees), the valve is closed, and the refrigerant gas enters the compressor through the return pipe, the third pipe, the first pipe, and the second pipe, and the tower body performs water cooling on the refrigerant gas flowing through it. The dryer of the utility model can perform air cooling or water cooling on the refrigerant gas according to actual needs, and can also choose to perform air cooling while performing water cooling. The cooling demand of the refrigerant gas is met, so that the compressor runs stably, which greatly avoids the problem of compressor failure, and thus avoids the situation where the dryer stops running. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a front view structural schematic diagram of a compressed air dryer of the utility model;
[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the closed heat dissipation tower of the utility model;
[0017] Figure 3 It is a structural schematic diagram of the housing of the utility model;
[0018] The reference numerals in the accompanying drawings are:
[0019] 1. Rack; 11. Wastewater collection frame; 12. Shell; 13. Linear module; 2. Compressor; 3. Evaporator; 4. Heat exchanger; 5. Fan; 6. Closed cooling tower; 61. Tower body; 611. Heat exchange chamber; 62. Cold water pump; 63. Condensation pipe; 7. Refrigerator; 8. Cold water tank; 81. Spray pipe; 9. Water vapor separator. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.
[0021] like Figures 1 to 3 As shown, a compressed air dryer includes a frame 1, a heat exchange component and a heat dissipation component, wherein the heat exchange component includes a compressor 2, an evaporator 3 and a heat exchanger 4 which are arranged in the frame 1 and are sequentially connected through a cooling pipe, the compressor 2 is also connected to the evaporator 3 through a return pipe, the heat dissipation component includes a fan 5 and a closed heat dissipation tower 6, the fan 5 is arranged in the frame 1 and the air outlet of the fan 5 faces the compressor 2, the closed heat dissipation tower 6 includes a tower body 61 and a cold water pump 62 which are arranged in the frame 1 and are connected through a first pipe, the tower body 61 is also connected to the compressor 2 through a second pipe, the cold water pump 62 is also connected to the return pipe through a third pipe, and a valve is provided at the connection between the return pipe and the third pipe.
[0022] The external compressed air obtained by the compressor 2 flows to the evaporator 3 and the heat exchanger 4, and finally obtains the refrigerant gas. The external air enters the heat exchanger 4 and exchanges heat with the refrigerant gas in the heat exchanger 4, so that the temperature of the refrigerant gas rises and the temperature of the external air decreases. After that, the refrigerant gas returns to the compressor 2 through the return pipe.
[0023] After the temperature of the refrigerant gas rises, before it returns to the compressor 2 , the valve is opened, and the refrigerant gas enters the compressor 2 through the return pipe. The fan 5 cools the refrigerant gas that has returned to the compressor 2 by air cooling.
[0024] When the external environment temperature is higher than a certain temperature (for example, 30 degrees), the valve is closed, and the refrigerant gas enters the compressor 2 through the return pipe, the third pipe, the first pipe, the tower body 61 and the second pipe, and the tower body 61 performs water cooling on the refrigerant gas flowing through it. Of course, while the refrigerant gas is being water-cooled, air cooling can also be used at the same time.
[0025] The dryer of this embodiment can perform air cooling or water cooling on the refrigerant gas according to actual needs, and can also perform air cooling while performing water cooling. The cooling demand of the refrigerant gas is met, so that the compressor 2 runs stably, and the failure of the compressor 2 is greatly avoided, thereby preventing the dryer from stopping.
[0026] As an implementation method, the tower body 61 is provided with a condensation inlet, a condensation outlet and a heat exchange chamber 611 that are connected to each other. A condensation pipe 63 is provided in the heat exchange chamber 611 and the condensation pipe 63 is arranged in a ring-shaped coil. The tower body 61 is also provided with a first interface and a second interface. One end of the condensation pipe 63 is connected to the first pipe through the first interface, and the other end of the condensation pipe 63 is connected to the second pipe through the second interface. External cold air or cold water is discharged into or discharged from the heat exchange chamber 611 through the condensation inlet and the condensation outlet. The cold air or cold water in the heat exchange chamber 611 performs heat exchange with the refrigerant gas in the condensation pipe 63, so that the temperature of the refrigerant gas is reduced. The refrigerant gas enters the compressor 2 through the reflux pipe, the third pipe, the first pipe, the condensation pipe 63 and the second pipe, and finally realizes water cooling and heat dissipation of the refrigerant gas flowing through the condensation pipe 63.
[0027] Specifically, the heat dissipation assembly further includes a refrigerator 7 disposed in the rack 1, and the condensation inlet and the condensation outlet are both connected to the refrigerator 7 through an air intake pipe. The refrigerator 7 discharges cold air into or out of the heat exchange chamber 611 through the condensation inlet and the condensation outlet, and the cold air in the heat exchange chamber 611 performs heat exchange with the refrigerant gas in the condensation pipe 63, so that the temperature of the refrigerant gas is reduced. The refrigerator 7 can control the temperature of the cold air and keep the cold air temperature constant between 20 degrees and 25 degrees.
[0028] Specifically, the heat dissipation assembly further includes a cold water tank 8 disposed in the rack 1, and the condensation inlet and the condensation outlet are both connected to the cold water tank 8 through a water pipeline, and a water pump (not shown in the figure) is disposed on the water pipeline. Figure 1 Since the refrigerator 7 has been used to connect the condensation inlet and the condensation outlet to the cold water tank 8, the condensation inlet and the condensation outlet are not connected to the cold water tank 8 again. The water pump discharges the cold water of the cold water tank 8 into or out of the heat exchange chamber 611 through the condensation inlet and the condensation outlet. The cold water in the heat exchange chamber 611 performs heat exchange with the refrigerant gas in the condensation pipe 63, so that the temperature of the refrigerant gas is reduced. The cold water in the cold water tank 8 can be controlled to be constant between 20 degrees and 25 degrees. Even if the working environment temperature of the dryer exceeds 30 degrees or higher, the normal operation of the compressed air dryer can be guaranteed.
[0029] As an implementable embodiment, the heat dissipation assembly further includes a spray pipe 81 disposed in the frame 1, the spray pipe 81 is connected to the cold water tank 8, the water spray port of the spray pipe 81 faces the compressor 2, and the frame 1 is further detachably provided with a wastewater collection frame 11, the wastewater collection frame 11 is located below the compressor 2. The cold water sprayed from the water spray port of the spray pipe 81 can dissipate the surface heat of the compressor 2, thereby cooling it and the refrigerant gas inside it. The wastewater collection frame 11 will recycle the above-mentioned cold water (that is, wastewater) to avoid polluting the internal environment of the frame 1.
[0030] As an implementation method, the frame 1 is provided with an embedded groove and a plurality of fixing columns located around the embedded groove, and the wastewater collection frame 11 is provided with a plurality of fixing holes, and the wastewater collection frame 11 can be inserted into the embedded groove and each fixing column can pass through the fixing hole. The embedded groove makes way for the wastewater collection frame 11, and the fixing columns and fixing holes enable the wastewater collection frame 11 to be stably stuck on the embedded groove. After the wastewater collection frame 11 is disassembled, the wastewater inside it can be processed in the next step.
[0031] As an implementable embodiment, the dryer further includes a linear module 13 and a shell 12, wherein the linear module 13 is arranged on the frame 1, and the slider of the linear module 13 is fixedly connected to the shell 12, and the shell 12 is covered on the frame 1 to form a closed space, wherein the heat exchange component and the heat dissipation component are both located in the closed space; the heat dissipation component further includes a ventilation duct and an air refrigerator arranged on the shell 12 and located outside the closed space, and the two ends of the ventilation duct are respectively connected to the air refrigerator and the shell 12. When the external ambient temperature is too high, in order to improve the efficiency of water cooling or air cooling, the linear module 13 is started, driving the shell 12 to be covered on the frame 1 to form a closed space, at which time the air refrigerator can transport cool air to the closed space through the ventilation duct to reduce the temperature in the closed space.
[0032] As an implementable embodiment, the heat exchange assembly further includes a water vapor separator 9 disposed in the rack 1, the water vapor separator 9 is connected to the heat exchanger 4 through a fourth pipe, and a drainer is disposed on the water vapor separator 9. External air enters the heat exchanger 4 and performs heat exchange with the refrigerant gas in the heat exchanger 4, and then the external air continues to pass through the gas-water separation of the gas-water separator and the heat exchanger 4 again after heat exchange and temperature rise, and then the dry low-temperature cold air is discharged from the heat exchanger 4. The water in the water vapor separator 9 can be discharged by opening the drainer.
[0033] The embodiments described above are only preferred embodiments of the present invention and are only used to explain the present invention, not to limit the scope of implementation of the present invention. For those skilled in the art, other implementation methods can certainly be easily made by replacement or modification based on the technical contents disclosed in this specification. Therefore, all changes and improvements made to the principles and process conditions of the present invention should be included in the scope of the patent application of the present invention.
Claims
1. A compressed air dryer, comprising a frame (1), a heat exchange component and a heat dissipation component, wherein the heat exchange component comprises a compressor (2), an evaporator (3) and a heat exchanger (4) which are arranged in the frame (1) and are sequentially connected through a cooling pipe, and the compressor (2) is also connected to the heat exchanger (4) through a return pipe, characterized in that: The heat dissipation assembly comprises a fan (5) and a closed heat dissipation tower (6); the fan (5) is arranged in a frame (1) and an air outlet of the fan (5) faces the compressor (2); the closed heat dissipation tower (6) comprises a tower body (61) and a cold water pump (62) which are arranged in the frame (1) and are connected via a first pipe; the tower body (61) is also connected to the compressor (2) via a second pipe; the cold water pump (62) is also connected to a return pipe via a third pipe; a valve is provided at the connection between the return pipe and the third pipe.
2. The compressed air dryer according to claim 1, characterized in that The tower body (61) is provided with a condensation inlet, a condensation outlet and a heat exchange chamber (611) which are connected to each other. A condensation pipe (63) is provided in the heat exchange chamber (611) and the condensation pipe (63) is arranged in a ring-shaped coil. The tower body (61) is also provided with a first interface and a second interface. One end of the condensation pipe (63) passes through the first interface to communicate with the first pipe, and the other end of the condensation pipe (63) passes through the second interface to communicate with the second pipe.
3. The compressed air dryer according to claim 2, characterized in that: The heat dissipation assembly further comprises a refrigerator (7) arranged in the frame (1), and the condensation inlet and the condensation outlet are both connected to the refrigerator (7) via an air intake pipe.
4. The compressed air dryer according to claim 2, characterized in that: The heat dissipation component also includes a cold water tank (8) arranged in the frame (1); the condensation inlet and the condensation outlet are both connected to the cold water tank (8) via a water pipeline; and a water pump is provided on the water pipeline.
5. The compressed air dryer according to claim 4, characterized in that The heat dissipation assembly further comprises a spray pipe (81) arranged in the frame (1), the spray pipe (81) being in communication with the cold water tank (8), the water spray port of the spray pipe (81) being directed toward the compressor (2), and a wastewater collection frame (11) being detachably provided on the frame (1), the wastewater collection frame (11) being located below the compressor (2).
6. The compressed air dryer according to claim 5, characterized in that The frame (1) is provided with an embedded groove and a plurality of fixing columns located around the embedded groove, and the wastewater collection frame (11) is provided with a plurality of fixing holes. The wastewater collection frame (11) can be inserted into the embedded groove and each fixing column can pass through the fixing hole.
7. The compressed air dryer according to claim 1, characterized in that The dryer further comprises a linear module (13) and a shell (12); the linear module (13) is arranged on the frame (1); a slider of the linear module (13) is fixedly connected to the shell (12); the shell (12) is covered on the frame (1) and forms a closed space; the heat exchange component and the heat dissipation component are both located in the closed space; the heat dissipation component further comprises a ventilation duct and an air cooler arranged on the shell (12) and located outside the closed space; two ends of the ventilation duct are respectively connected to the air cooler and the shell (12).
8. The compressed air dryer according to claim 1, characterized in that The heat exchange assembly further comprises a water vapor separator (9) arranged in the frame (1); the water vapor separator (9) is connected to the heat exchanger (4) via a fourth pipe; a drainer is arranged on the water vapor separator (9).