Refrigerant cooling three-in-one compression waste heat zero-gas-consumption regeneration adsorption type drying machine

Abstract

The utility model discloses a refrigerant cooling three-in-one compression waste heat zero gas consumption regeneration adsorption type dryer, which relates to the technical field of dryers, and comprises a first drying tower and a second drying tower, the side end part of the second drying tower is provided with a first aftercooler, the side end part of the first drying tower is provided with a heater, and the side end part of the second drying tower is provided with a second aftercooler. A second aftercooler is arranged at the side end part of the heater, a butterfly valve is arranged at one end of the second drying tower, and after a temperature sensor arranged on a pipeline monitors the temperature rise of gas in the pipeline, an electromagnetic valve controls the butterfly valve to guide the trend of the gas, so that the adsorption of the tower B and the regeneration cooling of the tower A are switched; two stages, namely a heating stage and a blowing cooling stage, are realized, the heating stage corresponds to two modes of tower A adsorption and tower B regeneration and the mode of tower A regeneration and tower B adsorption, the blowing cooling stage corresponds to two modes of tower A adsorption and tower B cooling and the mode of tower A cooling and tower B adsorption, the switching time of the four stages is shortened, and double-effect energy conservation is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of dryers, in particular to a three-in-one refrigerant cooling, compression, waste heat, zero gas consumption, regeneration adsorption dryer. Background Art

[0002] Compressed gas is one of the indispensable energy sources in modern industry and plays an increasingly important role worldwide. In my country, compressed gas is widely used in production activities in many fields such as food, electricity, chemical industry, pharmaceuticals, mining and machinery manufacturing. Adsorption dryer is a device used to remove moisture from compressed air. In actual application, adsorption dryer usually requires the following technologies:

[0003] 1. The adsorption tower is the core component of the adsorption dryer and is used to hold the adsorbent;

[0004] 2. Switching valve, used to control the working state switching of the adsorption tower;

[0005] 3. Waste heat recovery device, which collects waste heat released during the cooling process of compressed air;

[0006] 4. Control system: automatically controls the operation process of the dryer to ensure stable and efficient operation of the equipment.

[0007] At present, the existing adsorption dryer (such as patent publication number: CN218166499U) discloses a combined micro-heat regeneration adsorption dryer. By setting a humidity probe and a display screen, during the exhaust process, the humidity probe detects the humidity of the dried gas in real time and displays the detected value on the display screen. The staff can determine whether the adsorbent needs to be replaced by observing the value on the display screen, which can serve as an auxiliary reminder for the staff.

[0008] Since the cooling and compression waste heat regeneration adsorption dryer involves multiple components such as waste heat recovery devices and complex valve control systems, the equipment is large in size, and the operation of the compressed air system is unstable, the supply of waste heat will also be unstable, which can easily lead to a decrease in the adsorption efficiency of the adsorption tower and a shortened service life of the adsorbent. Utility Model Content

[0009] (1) Technical problems solved

[0010] In response to the shortcomings of the existing technology, the utility model provides a three-in-one refrigerant cooling, compressed waste heat, zero gas consumption, regeneration adsorption dryer to solve the technical problems of unstable operation of the compressed air system and unstable supply of waste heat, which easily lead to reduced adsorption efficiency of the adsorption tower and shortened service life of the adsorbent.

[0011] (2) Technical solution

[0012] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0013] A refrigerant cooling three-in-one compression waste heat zero gas consumption regeneration adsorption dryer includes a first drying tower and a second drying tower, a first aftercooler is provided at the side end of the second drying tower, a heater is provided at the side end of the first drying tower, a second aftercooler is provided at the side end of the heater, a butterfly valve is provided at one end of the second drying tower, a cooler is provided at one end of the second aftercooler, and a drain valve is provided at one end of the cooler.

[0014] Preferably: a thermal expansion valve is provided at the side end of the cooler, a bypass regulating valve is provided at the side end of the thermal expansion valve, a drying filter is provided at one end of the bypass regulating valve, a water cooler is fixedly installed at the side end of the drying filter, a liquid reservoir is provided at the other end of the thermal expansion valve, a high and low pressure controller is provided at the side end of the liquid reservoir, and a compressor is provided at the side end of the high and low pressure controller.

[0015] (3) Beneficial effects

[0016] 1. After the temperature of the gas in the pipeline is monitored by a temperature sensor installed on the pipeline, the solenoid valve controls the butterfly valve to guide the direction of the gas. Most of the moisture is extracted by freezing, and the moisture is uniformly drained by a centralized drainer. The dry air enters the first and second drying towers. The amount of moisture adsorbed by the adsorbent is greatly reduced, and the adsorption efficiency is improved, making the freeze-dehydration process more efficient, energy-saving, and environmentally friendly. The adsorbent is then used to adsorb subsequent moisture to achieve efficient energy utilization. The use of an integrated gas control system reduces air pressure changes at the moment of valve opening and closing to achieve low emissions.

[0017] 2. After the temperature of the gas in the pipeline is monitored by the temperature sensor installed on the pipeline, the solenoid valve controls the butterfly valve to guide the direction of the gas, realizing the conversion of B tower adsorption and A tower regeneration cooling. A total of two stages are realized, namely the heating stage and the cooling stage. The heating stage corresponds to the two modes of A tower adsorption and B tower regeneration and A tower regeneration and B tower adsorption. The cooling stage corresponds to the two modes of A tower adsorption and B tower cooling and A tower cooling and B tower adsorption, which reduces the switching time of the four stages and achieves double-effect energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0019] Figure 1 This is a plan view of the heating stage of the present invention;

[0020] Figure 2 This is a plan view of the cooling stage of the present invention.

[0021] Legend: 11. First drying tower; 12. Second drying tower; 13. First aftercooler; 14. Butterfly valve; 15. Desuperheater; 16. Second aftercooler; 17. Heater; 18. Water cooler; 19. Compressor; 21. Liquid receiver; 22. Thermal expansion valve; 23. High and low pressure controller; 24. Bypass regulating valve; 25. Drying filter; 26. Drain valve. DETAILED DESCRIPTION

[0022] The embodiment of the present application provides a three-in-one refrigerant cooling, compressed waste heat, zero gas consumption, regenerative adsorption dryer, which effectively solves the problem of unstable operation of the compressed air system. The supply of waste heat will also be unstable, which will easily lead to a decrease in the adsorption efficiency of the adsorption tower and a reduction in the service life of the adsorbent. After the temperature of the gas in the pipeline is monitored by a temperature sensor arranged on the pipeline, the solenoid valve controls the butterfly valve to guide the direction of the gas. Most of the moisture is extracted by freezing, and the moisture is uniformly drained by a centralized drainer. The dry air enters the first drying tower and the second drying tower. The amount of moisture adsorbed by the adsorbent is greatly reduced, and the adsorption efficiency is improved, making the freeze-dehydration process more efficient, energy-saving, and environmentally friendly. The adsorbent is then used to adsorb subsequent moisture to achieve efficient energy utilization. The use of an integrated gas control system can reduce air pressure changes at the moment of valve switching to achieve low emissions.

[0023] Example

[0024] like Figure 1 、 Figure 2 As shown, the technical solution in the embodiment of the present application effectively solves the technical problems of unstable operation of the compressed air system and unstable supply of waste heat, which easily leads to reduced adsorption efficiency of the adsorption tower and shortened service life of the adsorbent. The overall idea is as follows:

[0025] In response to the problems existing in the prior art, the utility model provides a refrigerant cooling three-in-one compressed waste heat zero gas consumption regeneration adsorption dryer, comprising a first drying tower 11 and a second drying tower 12, a first aftercooler 13 is provided at the side end of the second drying tower 12, a heater 17 is provided at the side end of the first drying tower 11, a second aftercooler 16 is provided at the side end of the heater 17, a butterfly valve 14 is provided at one end of the second drying tower 12, a cooler 15 is provided at one end of the second aftercooler 16, and a drain valve 26 is provided at one end of the cooler 15. Then, the high-temperature humid gas carrying the regenerated moisture is cooled in turn by the second aftercooler 16, and the cooler 15 removes the condensed water and then enters another adsorption tower in the adsorption state for adsorption treatment. When the temperature detected by the temperature sensor arranged on the outlet pipe of the cooler 15 drops to a specified temperature, the system will control the switch of the butterfly valve 14 through different solenoid valves to guide the direction of the gas.

[0026] A thermal expansion valve 22 is provided at the side end of the cooler 15, and a bypass regulating valve 24 is provided at the side end of the thermal expansion valve 22. A drying filter 25 is provided at one end of the bypass regulating valve 24, and a water cooler 18 is fixedly installed at the side end of the drying filter 25. A liquid reservoir 21 is provided at the other end of the thermal expansion valve 22, and a high and low pressure controller 23 is provided at the side end of the liquid reservoir 21. The liquid reservoir 21 is controlled by the high and low pressure controller 23. At the same time, the gas generated by the compressor 19 is discharged into the interior of the water cooler 18, and the compressed gas is filtered by the drying filter 25. The filtered compressed air passes through the thermal expansion valve 22 and the bypass regulating valve 24, and the air is introduced into the interior of the cooler 15. The side end of the high and low pressure controller 23 is provided with a compressor 19.

[0027] Working principle:

[0028] In the first step, two interfaces are installed at the side end of the water cooler 18 for the circulation of cooling water. At the same time, compressed air enters the heater 17, and then the first drying tower 11 and the second drying tower 12 are connected through a pipe. The air is first compressed by the compressor 19. A high and low pressure controller 23 is installed at one end of the compressor 19. The liquid reservoir 21 is controlled by the high and low pressure controller 23. At the same time, the gas generated by the compressor 19 is discharged into the interior of the water cooler 18, and the compressed gas is filtered by the drying filter 25. The filtered compressed air passes through the thermal expansion valve 22 and the bypass regulating valve 24, and the air is introduced into the interior of the cooler 15. Then the compressed air enters the interior of the first drying tower 11 and the second drying tower 12.

[0029] In the second step, the compressed air dryer includes a first adsorption tower and a second adsorption tower that are switched between at least two adsorption cycles. In any adsorption cycle, when any adsorption tower is in the adsorption state, the other adsorption tower is in the regeneration or cold blowing cooling or standby state. When any adsorption tower enters the regeneration state, the compression heat regeneration mode is first performed, and the high-temperature humid gas enters the adsorption tower in the regeneration state from the dryer inlet to dehydrate and regenerate the adsorbent. Then, the high-temperature humid gas carrying the regenerated moisture is cooled in turn by the second aftercooler 16 and the cooler 15 to remove the condensed water, and then enters the other adsorption tower in the adsorption state for adsorption treatment. When the temperature detected by the temperature sensor configured on the outlet pipe of the cooler 15 drops to the specified temperature, the system will control the switch of the butterfly valve 14 through different solenoid valves. To guide the direction of the gas and realize the opening of the compression heat cooling mode, the high-temperature humid gas enters the second aftercooler 16 from the inlet of the adsorption dryer for cooling, and then the low-temperature humid gas can carry moisture and pass through the cooler 15 in turn to remove the condensed water and be discharged by the centralized drain valve 26. The low-temperature dry compressed air then enters another adsorption tower in a cooling state for cooling and blowing treatment. After the temperature rise of the gas in the pipeline is monitored by the temperature sensor arranged on the pipeline, the solenoid valve controls the butterfly valve 14 to guide the direction of the gas to realize the conversion of B tower adsorption and A tower regeneration cooling. A total of two stages are realized, namely the heating stage and the blowing stage. The heating stage corresponds to the two modes of A tower adsorption, B tower regeneration and A tower regeneration, B tower adsorption, and the blowing stage corresponds to the two modes of A tower adsorption, B tower cooling and A tower cooling, B tower adsorption.

[0030] First, the compression heat regeneration mode is carried out, and the high-temperature humid gas enters the adsorption tower in the regeneration state from the inlet of the adsorption dryer to dehydrate and regenerate the adsorbent. Then, the high-temperature humid gas carries the regenerated moisture and is cooled by the first aftercooler 13 and the cooler 15 in turn to remove the condensed water, and then enters another adsorption tower in the adsorption state for adsorption. First, the compression heat cooling mode is carried out, and the high-temperature humid gas enters the first cooler from the inlet of the adsorption dryer to cool down. Then, the low-temperature humid gas can carry moisture and is discharged by the centralized drainer after the condensed water is removed. The low-temperature dry compressed air enters another adsorption tower in the cooling state for cooling and blowing treatment; the adsorbent in the adsorption tower is quickly cooled so that the subsequent mode can be switched faster. The compressed air coming out of the cooling tower enters and exits the water cooler 18 in turn for cooling, and is adsorbed by the other adsorption tower.

[0031] Finally, it should be noted that the above embodiments are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to enumerate all embodiments here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A three-in-one refrigerant cooling and waste heat compression zero gas consumption regeneration adsorption dryer, comprising a first drying tower (11) and a second drying tower (12), characterized in that: A first aftercooler (13) is provided at the side end of the second drying tower (12), a heater (17) is provided at the side end of the first drying tower (11), a second aftercooler (16) is provided at the side end of the heater (17), a butterfly valve (14) is provided at one end of the second drying tower (12), a cooler (15) is provided at one end of the second aftercooler (16), and a drain valve (26) is provided at one end of the cooler (15).

2. The three-in-one refrigerant cooling and compression waste heat zero gas consumption regeneration adsorption dryer according to claim 1, characterized in that: A thermal expansion valve (22) is provided at a side end of the desuperheater (15), and a bypass regulating valve (24) is provided at a side end of the thermal expansion valve (22).

3. The three-in-one refrigerant cooling and compression waste heat zero gas consumption regeneration adsorption dryer according to claim 2, characterized in that: A drying filter (25) is provided at one end of the bypass regulating valve (24), and a water cooler (18) is fixedly installed at the side end of the drying filter (25).

4. The three-in-one refrigerant cooling, compression, waste heat, zero gas consumption, regeneration adsorption dryer according to claim 2, characterized in that: A liquid reservoir (21) is provided at the other end of the thermal expansion valve (22).

5. The three-in-one refrigerant cooling and compression waste heat zero gas consumption regeneration adsorption dryer according to claim 4, characterized in that: A high and low pressure controller (23) is provided at the side end of the liquid storage container (21).

6. A three-in-one refrigerant cooling, compression, waste heat, zero gas consumption, regeneration adsorption dryer according to claim 5, characterized in that: A compressor (19) is provided at a side end portion of the high and low pressure controller (23).

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