Cold drying tank

Abstract

The utility model discloses a cold drying tank which comprises a tank body, a cooling cavity is arranged in the tank body, the cooling cavity is provided with an inlet and an outlet, a condensing device and a filtering device are arranged in the cooling cavity, and gas entering the cooling cavity from the inlet sequentially passes through the condensing device and the filtering device and is discharged from the outlet. According to the scheme, gas storage, condensation and filtration are integrated in the same tank body, the overall cost of the air compressor system is reduced to a certain extent, and the function of reducing energy consumption of the air compressor system is achieved while equipment is reduced; the cooling gas in the rotational flow cylinder preliminarily precools the gas preliminarily entering the cooling cavity, so that the gas reaches the precooling temperature before entering the condensing device, and the energy consumption of the condensing device is reduced; the filter element is used for oil-gas separation, gas entering the cooling cavity from the inlet sequentially passes through the condensing device and the filtering device, impurities in the cooled compressed air are separated through the filter element, and further precise filtering is carried out.

Description

Technical Field

[0001] This utility model relates to the field of air compressor system technology, and in particular to a refrigerated drying tank. Background Technology

[0002] An air compressor system is an energy conversion system that compresses atmospheric air using a compressor and then delivers it to where it is needed through pipelines. An air compressor system consists of an air compressor, filter, refrigerated dryer, oil separator, air tank, air distribution pipelines, and pneumatic components. The refrigerated dryer's function is to separate gaseous moisture from the compressed air, cooling the hot compressed air to its dew point temperature using a refrigerant compressor, releasing 99% of the moisture. Existing refrigerated dryers only dry the gas; the gas output from the dryer still needs to be filtered before being discharged. This single-function design results in high overall cost and energy consumption for the air compressor system.

[0003] For example, Chinese Patent Publication No. CN207989319U, published on October 18, 2018, entitled "Air Compressor Waste Heat Utilization Type Refrigerated Dryer System", includes an air compressor, a refrigerated dryer, and a hot air inlet pipe. The refrigerated dryer includes a heat exchanger, a warm water type lithium bromide absorption chiller, etc. One end of the heat exchanger is connected to the air compressor through the hot air inlet pipe. The warm water type lithium bromide absorption chiller is connected to one end of a circulating water pipe. The circulating water pipe is wound inside an evaporator. The other end of the circulating water pipe is also connected to the warm water type lithium bromide absorption chiller.

[0004] The drawbacks of existing patents are that existing refrigerated air dryers only dry the gas, and the gas output from the refrigerated air dryer still needs to be filtered before being discharged. The existing refrigerated air dryers have a single function, which results in the overall cost of the air compressor system being relatively high and the energy consumption being relatively large. Utility Model Content

[0005] The purpose of this invention is to improve the existing refrigerated dryers, which only dry gas and have a single function, resulting in high overall cost and energy consumption of the air compressor system. This invention provides a refrigerated dryer that reduces the overall cost and energy consumption of the air compressor system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A refrigerated air dryer includes a tank body with a cooling cavity inside. The cooling cavity has an inlet and an outlet, and a condenser and a filter are installed within the cooling cavity. Gas entering the cooling cavity from the inlet passes through the condenser and filter sequentially and exits from the outlet. This refrigerated air dryer, with its tank body having a certain gas storage function and a cooling cavity inside containing the condenser and filter, integrates condensation and filtration functions within the same tank body. Compared to existing refrigerated air dryers, this refrigerated air dryer has multiple functions, integrating gas storage, condensation, and filtration into a single tank body. This reduces the overall cost of the air compressor system to a certain extent, reducing equipment requirements and thus lowering the energy consumption of the air compressor system.

[0008] Preferably, the filtration device includes a filter element. Gas entering the cooling cavity from the inlet passes sequentially through a condenser and the filter element and is discharged from the outlet. The filter element is an oil-gas separator. Gas entering the cooling cavity from the inlet passes sequentially through a condenser and a filter. The cooled compressed air passes through the filter element to separate impurities from the compressed air, undergoing further precision filtration.

[0009] Preferably, the filtration device includes a cyclone separator, the upper end of which is connected to the inner wall of the cooling cavity and communicates with the outlet, and the lower end is connected to a condenser. The inlet is located outside the cyclone separator. The cyclone separator is positioned above the condenser. Compressed air, after being condensed and dried by the condenser, enters the cyclone separator. Because the inlet is located outside the cyclone separator, the gas entering the cooling cavity from the inlet is initially positioned between the outer wall of the cyclone separator and the inner wall of the cooling cavity. The cooling gas inside the cyclone separator pre-cools the gas initially entering the cooling cavity, ensuring that the gas reaches a pre-cooled temperature before entering the condenser.

[0010] Preferably, a swirling cavity is formed between the outer wall of the swirling cylinder and the inner wall of the cooling cavity. A baffle plate is provided within the swirling cavity to vertically separate one side of the swirling cavity, and the baffle plate is located below the inlet. The baffle plate vertically separates the side of the swirling cylinder with the inlet, allowing the gas entering the swirling cavity to swirl around the outer wall of the swirling cylinder before being condensed by a condensing device located below the swirling cylinder. This further increases the contact between the gas and the outer wall of the swirling cylinder, enabling the gas to reach a preliminary pre-cooling temperature.

[0011] Preferably, the filter element is disposed inside or outside the outlet. Depending on the type of tank, the filter element may be disposed inside or outside the outlet of the cooling cavity. When the filter element is disposed inside the outlet, its opening faces upwards; when the filter element is disposed outside the outlet, its opening faces downwards.

[0012] Preferably, the condensing device has an inlet end and an outlet end, and the filter element is disposed at the outlet end of the condensing device. The condensing device is disposed at the lower end of the cyclone separator, the outlet end of the condensing device is connected to the inner cavity of the cyclone separator, the outlet end of the condensing device is located at the top of the condensing device, and the filter element is inverted with its opening facing downwards at the outlet end of the condensing device.

[0013] Preferably, there are multiple filter elements. Gas discharged from the outlet of the condenser enters the cyclone separator through multiple filter elements and is discharged from the outlet. A single filter element or multiple filter elements can be used depending on actual needs.

[0014] Preferably, the tank is inclined, and the condensation device and the filtration device are located in the upper part of the cooling cavity.

[0015] Preferably, the lower part of the cooling cavity is provided with a baffle, the lower side of which is connected to the inner wall of the cooling cavity and has a drain hole. The baffle reduces the contact between liquid and gas at the bottom of the cooling cavity, and the drain hole is used to discharge the liquid separated from the gas through the baffle to the bottom of the cooling cavity.

[0016] Preferably, the inlet is connected to an air intake pipe, which is arranged tangentially to the circumference of the cooling cavity. Gas enters the cooling cavity tangentially from the air intake pipe, forming a vortex within the cavity. This causes moisture or oil in the gas to separate under centrifugal force, achieving a preliminary separation effect.

[0017] Therefore, this utility model has the following beneficial effects: integrating air storage, condensation, and filtration into the same tank reduces the overall cost of the air compressor system to a certain extent, and reduces the energy consumption of the air compressor system while reducing equipment; the cooling gas in the cyclone tube pre-cools the gas that initially enters the cooling cavity so that the gas reaches the pre-cooling temperature before entering the condensing device, thereby reducing the energy consumption of the condensing device; the filter element is an oil-gas separation filter element, and the gas entering the cooling cavity from the inlet passes through the condensing device and the filtration device in sequence. The cooled compressed air passes through the filter element to separate impurities in the compressed air and further performs precision filtration. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of Embodiment 1 in Embodiment 3 of this utility model.

[0019] Figure 2 This is a cross-sectional view of Embodiment 2 in Embodiment 3 of this utility model.

[0020] Figure 3 This is a cross-sectional view of Embodiment 3 of this utility model.

[0021] Figure 4This is a cross-sectional view of Embodiment 3 of the present utility model.

[0022] Figure 5 This is a cross-sectional view of embodiment four in embodiment three of this utility model.

[0023] Figure 6 This is a cross-sectional view of embodiment five in embodiment three of this utility model.

[0024] Figure 7 This is a cross-sectional view of Embodiment 4 of this utility model.

[0025] As shown in the picture:

[0026] Tank 1

[0027] Cooling cavity 2, inlet 2.1, outlet 2.2,

[0028] Condensation device 3, air inlet 3.1, air outlet 3.2,

[0029] Filtering device 4, filter element 4.1, cyclone separator 4.2,

[0030] 5. Swirl chamber; 6. Partition; 7. Baffle; 8. Drain hole. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0032] Example 1, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 The refrigerated drying tank shown includes a tank body 1, a cooling cavity 2 inside the tank body 1, an inlet 2.1 and an outlet 2.2 inside the cooling cavity 2, a condenser 3 and a filter 4 inside the cooling cavity 2, and gas entering the cooling cavity 2 from the inlet 2.1 passes through the condenser 3 and the filter 4 in sequence and is discharged from the outlet 2.2.

[0033] An air compressor system is an energy conversion system that compresses atmospheric air using a compressor and then delivers it to where it is needed through pipelines. An air compressor system consists of an air compressor, filter, refrigerated dryer, oil separator, air tank, air distribution pipelines, and pneumatic components. The refrigerated dryer's function is to separate gaseous moisture from the compressed air, cooling the hot compressed air to its dew point temperature using a refrigerant compressor, releasing 99% of the moisture. Existing refrigerated dryers only dry the gas; the gas output from the dryer still needs to be filtered before being discharged. This single-function design results in high overall cost and energy consumption for the air compressor system.

[0034] To address the issue that existing refrigerated air dryers only dry gas and have a single function, resulting in high overall costs and energy consumption of the air compressor system, a refrigerated drying tank is provided to reduce the overall cost and energy consumption of the air compressor system.

[0035] One type of cold drying container in this embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the tank 1 has a certain air storage function. The tank 1 is equipped with a cooling cavity 2, and the cooling cavity 2 is equipped with a condensing device 3 and a filtering device 4. The condensing and filtering functions are integrated into the same tank 1. Compared with the existing refrigerated dryer, the refrigerated dryer in this solution has multiple functions, integrating air storage, condensation and filtration into the same tank 1, which reduces the overall cost of the air compressor system to a certain extent, reduces equipment, and achieves the function of reducing the energy consumption of the air compressor system.

[0036] Example 2, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The refrigerated drying tank shown includes a tank body 1, a cooling cavity 2 inside the tank body 1, an inlet 2.1 and an outlet 2.2 inside the cooling cavity 2, a condenser 3 and a filter 4 inside the cooling cavity 2, and gas entering the cooling cavity 2 from the inlet 2.1 passes through the condenser 3 and the filter 4 in sequence and is discharged from the outlet 2.2.

[0037] In this embodiment, the filtration device 4 includes a filter element 4.1. Gas entering the cooling cavity 2 from the inlet 2.1 passes sequentially through the condenser 3 and the filter element 4.1 and is discharged from the outlet 2.2. The filter element 4.1 is an oil-gas separation filter element 4.1. Gas entering the cooling cavity 2 from the inlet 2.1 passes sequentially through the condenser 3 and the filtration device 4. The cooled compressed air passes through the filter element 4.1 to separate impurities from the compressed air, and further undergoes precision filtration.

[0038] Filter element 4.1 can be further optimized. There are multiple implementation methods for filter element 4.1, one of which is as follows: Figure 6 As shown, filter element 4.1 is located at the outer end of outlet 2.2 of cooling cavity 2.

[0039] In summary, integrating air storage, condensation, and filtration into the same tank 1 reduces the overall cost of the air compressor system to a certain extent, and reduces the number of equipment while also reducing the energy consumption of the air compressor system.

[0040] Example 3, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The refrigerated drying tank shown includes a tank body 1, a cooling cavity 2 inside the tank body 1, an inlet 2.1 and an outlet 2.2 inside the cooling cavity 2, a condenser 3 and a filter 4 inside the cooling cavity 2, and gas entering the cooling cavity 2 from the inlet 2.1 passes through the condenser 3 and the filter 4 in sequence and is discharged from the outlet 2.2.

[0041] In this embodiment, as Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, the filtration device 4 includes a filter element 4.1. Gas entering the cooling cavity 2 from the inlet 2.1 passes sequentially through the condenser 3 and the filter element 4.1 and is discharged from the outlet 2.2. The filter element 4.1 is an oil-gas separation filter element 4.1. Gas entering the cooling cavity 2 from the inlet 2.1 passes sequentially through the condenser 3 and the filtration device 4. The cooled compressed air passes through the filter element 4.1 to separate impurities from the compressed air, and further undergoes precision filtration.

[0042] Specifically, such as Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6As shown, the filtration device 4 includes a vortex tube 4.2. The upper end of the vortex tube 4.2 is connected to the inner wall of the cooling cavity 2 and communicates with the outlet 2.2, while the lower end is connected to the condenser 3. The inlet 2.1 is located outside the vortex tube 4.2. The vortex tube 4.2 is located above the condenser 3. Compressed air that has been condensed and dried by the condenser 3 enters the vortex tube 4.2. Since the inlet 2.1 is located outside the vortex tube 4.2, the gas entering the cooling cavity 2 from the inlet 2.1 is initially located between the outer wall of the vortex tube 4.2 and the inner wall of the cooling cavity 2. The cooling gas inside the vortex tube 4.2 pre-cools the gas that initially enters the cooling cavity 2, so that the gas reaches the pre-cooled temperature before entering the condenser 3, thereby reducing the energy consumption of the condenser 3.

[0043] Further optimizations to filter element 4.1, such as... Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, there are multiple implementation methods for filter element 4.1. Implementation method one: as follows... Figure 1 As shown, filter element 4.1 is located at the inner end of outlet 2.2 of cooling cavity 2, and filter element 4.1 is located inside cyclone tube 4.2. The number of filter elements 4.1 is one; Embodiment 2: As shown Figure 2 As shown, filter element 4.1 is located at the inner end of outlet 2.2 of cooling cavity 2, and filter element 4.1 is located inside cyclone tube 4.2. There are multiple filter elements 4.1; Implementation method 3: As shown Figure 4 As shown, the condensing device 3 has an inlet end 3.1 and an outlet end 3.2. A filter element 4.1 is located at the outlet end 3.2 of the condensing device 3. The filter element 4.1 is located inside the vortex tube 4.2. There are multiple filter elements 4.1. The filter elements 4.1 can be directly connected to the outlet end 3.2 of the condensing device 3, or a support plate can be provided inside the vortex tube 4.2, with the filter element 4.1 inverted on the support plate and connected to the outlet end 3.2 of the condensing device 3. Implementation method four: Figure 5 As shown, the condensing device 3 has an inlet end 3.1 and an outlet end 3.2. A filter element 4.1 is located at the outlet end 3.2 of the condensing device 3. The filter element 4.1 is located inside the vortex tube 4.2, and there is only one filter element 4.1. The filter element 4.1 can be directly connected to the outlet end 3.2 of the condensing device 3, or a support plate can be provided inside the vortex tube 4.2, with the filter element 4.1 inverted on the support plate and connected to the outlet end 3.2 of the condensing device 3; Embodiment 5: As Figure 6 As shown, the tank 1 is provided with a cooling cavity 2 and an air outlet cavity located above the cooling cavity 2. The filter element 4.1 is located at the outer end of the outlet 2.2 of the cooling cavity 2, that is, the filter element 4.1 is located in the air outlet cavity. Whether or not to provide a vortex tube 4.2 in this embodiment depends on the actual needs. The condensation device 3 can be directly connected to the outlet 2.2 of the cooling cavity 2.

[0044] Further optimizations were made to the cyclone separator 4.2, such as... Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, a swirling cavity 5 is formed between the outer wall of the swirling cylinder 4.2 and the inner wall of the cooling cavity 2. A baffle 6 is provided within the swirling cavity 5, separating one side of the swirling cavity 5 vertically. The baffle 6 is located below the inlet 2.1. The baffle 6 separates the side of the swirling cylinder 4.2 with the inlet 2.1 vertically, allowing the gas entering the swirling cavity 5 to swirl around the outer wall of the swirling cylinder 4.2 before being condensed by the condensing device 3 located below the swirling cylinder 4.2. This further increases the contact between the gas and the outer wall of the swirling cylinder 4.2, enabling the gas to reach a preliminary pre-cooling temperature.

[0045] Further optimization of import 2.1, such as... Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, inlet 2.1 is connected to an air intake pipe, which is set along the circumferential tangent direction of cooling cavity 2.

[0046] In summary, integrating air storage, condensation, and filtration into the same tank 1 reduces the overall cost of the air compressor system to a certain extent, and reduces the energy consumption of the air compressor system while reducing equipment. The cooling gas in the cyclone tube 4.2 pre-cools the gas that initially enters the cooling cavity 2, so that the gas reaches the pre-cooled temperature before entering the condenser 3, thereby reducing the energy consumption of the condenser 3. The filter element 4.1 is an oil-gas separation filter element 4.1. The gas entering the cooling cavity 2 from the inlet 2.1 passes through the condenser 3 and the filter 4 in sequence. The cooled compressed air passes through the filter element 4.1 to separate impurities in the compressed air and further undergoes precision filtration.

[0047] Example 4, as Figure 7 The refrigerated drying tank shown includes a tank body 1, a cooling cavity 2 inside the tank body 1, an inlet 2.1 and an outlet 2.2 inside the cooling cavity 2, a condenser 3 and a filter 4 inside the cooling cavity 2, and gas entering the cooling cavity 2 from the inlet 2.1 passes through the condenser 3 and the filter 4 in sequence and is discharged from the outlet 2.2.

[0048] In this embodiment, as Figure 7 As shown, the tank 1 is tilted, and the condensation device 3 and the filter device 4 are located on the upper part of the cooling cavity 2.

[0049] Further optimization of cooling cavity 2, such as Figure 7As shown, a baffle 7 is provided at the lower part of the cooling cavity 2. The lower side of the baffle 7 is connected to the inner wall of the cooling cavity 2 and has a drain hole 8. The baffle 7 reduces the contact between the liquid and the gas at the bottom of the cooling cavity 2, and the drain hole 8 is used to discharge the liquid separated from the gas through the baffle 7 to the bottom of the cooling cavity 2.

[0050] In this embodiment, as Figure 7 As shown, the filtration device 4 includes a filter element 4.1. Gas entering the cooling cavity 2 from the inlet 2.1 passes sequentially through the condenser 3 and the filter element 4.1 and is discharged from the outlet 2.2. The filter element 4.1 is an oil-gas separation filter element 4.1. Gas entering the cooling cavity 2 from the inlet 2.1 passes sequentially through the condenser 3 and the filtration device 4. The cooled compressed air passes through the filter element 4.1 to separate impurities from the compressed air, and further undergoes precision filtration.

[0051] Further optimizations to filter device 4, such as... Figure 7 As shown, the filtration device 4 includes a cyclone separator 4.2. The upper end of the cyclone separator 4.2 is connected to the inner wall of the cooling cavity 2 and communicates with the outlet 2.2, while the lower end is connected to the condenser 3. The inlet 2.1 is located outside the cyclone separator 4.2. The cyclone separator 4.2 is located above the condenser 3. Compressed air that has been condensed and dried by the condenser 3 enters the cyclone separator 4.2. Since the inlet 2.1 is located outside the cyclone separator 4.2, the gas entering the cooling cavity 2 from the inlet 2.1 is initially located between the outer wall of the cyclone separator 4.2 and the inner wall of the cooling cavity 2. The cooling gas inside the cyclone separator 4.2 pre-cools the gas that initially enters the cooling cavity 2 so that the gas reaches the pre-cooled temperature before entering the condenser 3.

[0052] Further optimizations were made to the cyclone separator 4.2, such as... Figure 7 As shown, a swirling cavity 5 is formed between the outer wall of the swirling cylinder 4.2 and the inner wall of the cooling cavity 2. A baffle 6 is provided within the swirling cavity 5, separating one side of the swirling cavity 5 vertically. The baffle 6 is located below the inlet 2.1. The baffle 6 separates the side of the swirling cylinder 4.2 with the inlet 2.1 vertically, allowing the gas entering the swirling cavity 5 to swirl around the outer wall of the swirling cylinder 4.2 before being condensed by the condensing device 3 located below the swirling cylinder 4.2. This further increases the contact between the gas and the outer wall of the swirling cylinder 4.2, enabling the gas to reach a preliminary pre-cooling temperature.

[0053] Further optimization of import 2.1, such as... Figure 7 As shown, inlet 2.1 is connected to an air intake pipe, which is set along the circumferential tangent direction of cooling cavity 2.

[0054] In summary, integrating air storage, condensation, and filtration into the same tank 1 reduces the overall cost of the air compressor system to a certain extent, and reduces the energy consumption of the air compressor system while reducing equipment. The cooling gas in the cyclone tube 4.2 pre-cools the gas that initially enters the cooling cavity 2, so that the gas reaches the pre-cooled temperature before entering the condenser 3, thereby reducing the energy consumption of the condenser 3. The filter element 4.1 is an oil-gas separation filter element 4.1. The gas entering the cooling cavity 2 from the inlet 2.1 passes through the condenser 3 and the filter 4 in sequence. The cooled compressed air passes through the filter element 4.1 to separate impurities in the compressed air and further undergoes precision filtration.

[0055] The basic structure is based on Embodiment 1 or Embodiment 2, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the bottom of the cooling cavity 2 is angled, which reduces the cost of the tank 1 and facilitates the discharge of liquid.

[0056] The specific embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the specific scope of implementation of this utility model. All equivalent changes made to the shape and structure of this utility model should be included within the protection scope of this utility model.

Claims

1. A cold drying container, characterized in that, It includes a tank body, which has a cooling cavity with an inlet and an outlet. The cooling cavity is equipped with a condenser and a filter. Gas entering the cooling cavity from the inlet passes through the condenser and the filter in sequence and is discharged from the outlet.

2. A refrigerated drying container according to claim 1, characterized in that, The filtration device includes a filter element. Gas entering the cooling cavity from the inlet passes through the condenser and the filter element in sequence and is discharged from the outlet.

3. A refrigerated drying container according to claim 2, characterized in that, The filtration device includes a cyclone separator, the upper end of which is connected to the inner wall of the cooling cavity and communicates with the outlet, and the lower end is connected to the condensation device. The inlet is located outside the cyclone separator.

4. A refrigerated drying container according to claim 3, characterized in that, A swirling cavity is formed between the outer wall of the swirling cylinder and the inner wall of the cooling cavity. A partition is provided in the swirling cavity to separate one side of the swirling cavity vertically. The partition is located below the inlet.

5. A refrigerated drying container according to claim 2, 3, or 4, characterized in that, The filter element is located on the inside or outside of the outlet.

6. A refrigerated drying container according to claim 2, 3, or 4, characterized in that, The condensation device has an air inlet and an air outlet, and the filter element is located at the air outlet of the condensation device.

7. A refrigerated drying container according to claim 6, characterized in that, The number of filter elements is multiple. The gas discharged from the outlet of the condenser enters the cyclone drum through multiple filter elements and is discharged from the outlet.

8. A refrigerated drying container according to claim 1, 2, 3, or 4, characterized in that, The tank is tilted, and the condensation device and the filtration device are located at the top of the cooling cavity.

9. A refrigerated drying container according to claim 8, characterized in that, The lower part of the cooling cavity is provided with a baffle, and the lower side of the baffle is connected to the inner wall of the cooling cavity and is provided with a drain hole.

10. A refrigerated drying container according to claim 1, 2, 3, or 4, characterized in that, The inlet is connected to an air intake pipe, which is arranged along the circumferential tangent direction of the cooling cavity.

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