Divided-flow regeneration type blast heat adsorption type drying machine

Abstract

The utility model relates to the technical field of dryers, in particular to a split-flow regenerative blast heat adsorption dryer. According to the technical scheme, the device comprises an adsorption cylinder A and an adsorption cylinder B which are connected through a pipeline, the top and the bottom of the adsorption cylinder A are connected with an air outlet valve D14 and a pressure release valve V6 respectively, the top and the bottom of the adsorption cylinder B are connected with an air outlet valve D13 and a pressure release valve V5 respectively, and the pressure release valve V6 is connected with a regeneration exhaust valve V4 and an air inlet valve V2. The pressure release valve V5 is connected with a regeneration exhaust valve V3 and an air inlet valve V1, and the air outlet valve D14 is connected with a heating gas regeneration valve D12. According to the utility model, the phenomenon of excessive system pressure drop caused by adsorbent hardening due to excessive accumulated water and worse and worse dew point of the adsorbent in the tower body is avoided, the pressure drop of the regenerated gas can be reduced, more flow can be obtained under the static pressure of the same point, and meanwhile, the power consumption of the air blower can be smaller, and the air blower is more energy-saving and environment-friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of dryers, in particular to a split-flow regeneration type blast heat adsorption type dryer. Background Art

[0002] Whether it is industrial or civil, the application of compressed air is becoming more and more extensive, and the compressed air purification technology is becoming more and more advanced. Under the national call for energy conservation and environmental protection, after comprehensively weighing the one-time investment and operating costs of compressed air purification equipment, more users tend to choose energy-saving purification equipment.

[0003] At present, the blower heat adsorption dryers on the market generally have the problem of incomplete regeneration in the theoretical design data, which leads to excessive water accumulation in the tower adsorbent and worsening dew point. Ultimately, the adsorbent is compacted, resulting in excessive system pressure drop, excessive blower current, and motor burnout. Therefore, the present application proposes a split-flow regeneration blower heat adsorption dryer. Summary of the invention

[0004] The utility model aims to propose a split-flow regeneration type blast heat adsorption dryer to solve the problems of adsorbent compaction in the background technology, which leads to excessive system pressure drop, excessive blower current and burnt motor.

[0005] The technical solution of the utility model is as follows: a split-flow regeneration blast heat adsorption dryer, comprising an adsorption cylinder A and an adsorption cylinder B connected by pipelines, wherein the top and bottom of the adsorption cylinder A are respectively connected with an outlet valve D14 and a pressure relief valve V6, the top and bottom of the adsorption cylinder B are respectively connected with an outlet valve D13 and a pressure relief valve V5, the pressure relief valve V6 is connected with a regeneration exhaust valve V4 and an intake valve V2, the pressure relief valve V5 is connected with a regeneration exhaust valve V3 and an intake valve V1, the outlet valve D14 is connected with a heating gas regeneration valve D12, the outlet valve D13 is connected with a heating gas regeneration valve D11, and further comprising:

[0006] Heating regeneration passage, cold blowing regeneration passage and pressurizing passage.

[0007] Optionally, the gas outlet valve D14, the heating gas regeneration valve D12 and the gas outlet valve D13, the heating gas regeneration valve D11 are fixedly connected.

[0008] Optionally, the heating regeneration passage includes a filter connected to a pipeline, the filter is fixedly connected to a blower, the blower is fixedly connected to a heater, the heater is connected to a gas check valve D10, the gas check valve D10 is connected to a heating gas regeneration valve D12 and a heating gas regeneration valve D11, the heating gas regeneration valve D12 is connected to a diversion flow regulating valve T1, the diversion flow regulating valve T1 is connected to a heating gas regeneration valve D16, the heating gas regeneration valve D16 is connected to an adsorption cylinder A, the heating gas regeneration valve D11 is connected to a diversion flow regulating valve T2, the diversion flow regulating valve T2 is connected to a heating gas regeneration valve D17, and the heating gas regeneration valve D17 is connected to an adsorption cylinder B.

[0009] Optionally, the cold blow regeneration passage includes a cold blow valve V7 connected by a pipeline, the cold blow valve V7 is connected to an outlet valve D14, an outlet valve D13, a heating gas regeneration valve D12, and a heating gas regeneration valve D11, the cold blow valve V7 is connected to an adsorption cylinder B, the adsorption cylinder B is connected to a regeneration exhaust valve V3, and the regeneration exhaust valve V3 is connected to a regeneration exhaust gas outlet.

[0010] Optionally, the pressurizing passage includes the top of the adsorption cylinder B connected to the cold blow valve V7, and the top of the adsorption cylinder B is connected to the regeneration exhaust valve V3.

[0011] Optionally, the diverter flow regulating valve T1 is connected to the top of the adsorption cylinder A and the middle of the tower, and the diverter flow regulating valve T2 is connected to the top of the adsorption cylinder B and the middle of the tower.

[0012] In summary, the present application includes at least one of the following beneficial technical effects:

[0013] 1. By setting up a blower heating and regeneration passage, the blower can divide the regeneration gas into two paths during the heating and regeneration process. One path is regenerated and heated from the top of the tower downwards, and the other path is regenerated and heated from the middle of the tower downwards, which increases the flow area of ​​the regeneration gas, reduces the resistance of the regeneration gas, and reduces the power consumption of the blower.

[0014] 2. Through the continuous heating regeneration process, due to the small heat transfer coefficient of the adsorbent, when it is heated to half or even 1 / 3 of the cylinder, the temperature of the regenerated exhaust gas is difficult to increase further, resulting in excessive water accumulation in the adsorbent at the bottom. Finally, the blower air flow resistance is too large due to compaction, and it cannot operate normally. Adding a regeneration gas line in the middle and lower parts can effectively solve the problem of incomplete regeneration of the adsorbent in the middle and lower parts, and can reduce the heating regeneration time, so that the dynamic adsorption rate of the adsorbent will not be too large, causing dew point drift.

[0015] The utility model avoids the phenomenon that too much water accumulates in the tower body adsorbent, the dew point becomes worse and worse, the adsorbent becomes hardened and causes excessive pressure drop in the system, and can reduce the pressure drop of the regenerated gas. Under the static pressure at the same point, more flow can be obtained, and the power consumption of the blower can be smaller, which is more energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of an embodiment of the utility model is given.

[0017] Figure numerals: 1. Adsorption cylinder A; 2. Adsorption cylinder B; 3. Heater; 4. Filter; 5. Blower; 6. Diverter flow regulating valve T1; 7. Diverter flow regulating valve T2; 8. Inlet valve V2; 9. Inlet valve V1; 10. Regeneration exhaust valve V4; 11. Regeneration exhaust valve V3; 12. Cold blow valve V7; 13. Pressure relief valve V6; 14. Pressure relief valve V5; 15. Heating gas regeneration valve D12; 16. Heating gas regeneration valve D11; 17. Heating gas regeneration valve D16; 18. Heating gas regeneration valve D17; 19. Gas check valve D10; 20. Outlet valve D14; 21. Outlet valve D13. DETAILED DESCRIPTION

[0018] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0019] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0020] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Example

[0025] like Figure 1 As shown, the split regeneration type blast heat adsorption dryer proposed by the utility model comprises an adsorption cylinder A1 and an adsorption cylinder B2 connected by pipelines, the top and bottom of the adsorption cylinder A1 are respectively connected with an outlet valve D14 20 and a pressure relief valve V6 13, the top and bottom of the adsorption cylinder B2 are respectively connected with an outlet valve D13 21 and a pressure relief valve V5 14, the pressure relief valve V6 13 is connected with a regeneration exhaust valve V4 10 and an intake valve V28, the pressure relief valve V5 14 is connected with a regeneration exhaust valve V3 11 and an intake valve V19, the outlet valve D14 20 is connected with a heating gas regeneration valve D12 15, and the outlet valve D13 21 is connected with a heating gas regeneration valve D11 16;

[0026] It is worth noting that the outlet valve D14 20, the heating gas regeneration valve D12 15 and the outlet valve D13 21, the heating gas regeneration valve D11 16 are fixedly connected;

[0027] In addition, the device also includes a heating regeneration passage, a cold blowing regeneration passage and a pressurizing passage;

[0028] Further, the heating regeneration passage includes a filter 4 connected by a pipeline, the filter 4 is fixedly connected to a blower 5, the blower 5 is fixedly connected to a heater 3, the heater 3 is connected to a gas check valve D+19, the gas check valve D+19 is connected to a heating gas regeneration valve D+15 and a heating gas regeneration valve D+16, the heating gas regeneration valve D+15 is connected to a shunt flow regulating valve T-6, the shunt flow regulating valve T-6 is connected to a heating gas regeneration valve D+16, the heating gas regeneration valve D+16 is connected to an adsorption cylinder A1, the heating gas regeneration valve D+16 is connected to a shunt flow regulating valve T-7, the shunt flow regulating valve T-7 is connected to a heating gas regeneration valve D+17, and the heating gas regeneration valve D+17 is connected to an adsorption cylinder B2;

[0029] It is worth mentioning that the high-temperature compressed air enters the dryer from the air inlet, enters the adsorption cylinder A1 from the air inlet valve V2, and then from the air outlet valve D14 to the outlet. The blower 5 passes the outside air through the filter 4 and enters the heater. The heated air passes through the gas check valve D10 19 and the heating gas regeneration valve D11 16 and enters the top of the adsorption cylinder B2, and the heating process is carried out from top to bottom.

[0030] It is worth noting that the diverter flow regulating valve T-6 and the diverter flow regulating valve T-7 are both manual regulating valves;

[0031] Furthermore, the cold blowing regeneration passage includes a cold blowing valve V712 connected by a pipeline, the cold blowing valve V712 is connected to the outlet valve D1420, the outlet valve D1321, the heating gas regeneration valve D1215, and the heating gas regeneration valve D1116, the cold blowing valve V712 is connected to the adsorption cylinder B2, the adsorption cylinder B2 is connected to the regeneration exhaust valve V311, and the regeneration exhaust valve V311 is connected to the regeneration exhaust gas outlet;

[0032] What is particularly important is that the pressurizing passage includes the top of the adsorption cylinder B2 connected to the cold blow valve V712, the top of the adsorption cylinder B2 connected to the regeneration exhaust valve V311, the diverter flow regulating valve T16 connected to the top and the middle of the adsorption cylinder A1, and the diverter flow regulating valve T27 connected to the top and the middle of the adsorption cylinder B2.

[0033] Working principle: In the first half of the cycle, adsorption cylinder A1 adsorbs, and adsorption cylinder B2 regenerates, which is divided into two stages: heating regeneration and cold blowing regeneration. In the heating regeneration stage: high-temperature compressed air enters the dryer from the air inlet, enters the adsorption cylinder A1 from the air inlet valve V28, and then exits from the air outlet valve D1420. At the same time, the blower 5 passes the outside air through the filter 4 into the heater 3, and heats it to 150-180℃. It passes through the gas check valve D1019 and the heating gas regeneration valve D1116 and enters the top of the adsorption cylinder B tower to be heated from top to bottom. The other way is from the heating gas regeneration valve D1718 and the diverter flow The quantity regulating valve T heats the middle of the second tower from top to bottom, and the two gases merge at the regeneration exhaust valve V311 and are then discharged outside the equipment; cold blowing regeneration stage: high-temperature compressed air enters the dryer from the air inlet, enters the adsorption tube A1 tower from the air inlet valve V28, and then goes to the outlet from the air outlet valve D1420. At the same time, the cold blowing valve V712 is opened, and the finished gas with lower temperature is blown from top to bottom through the top of the tower and discharged to the outside of the environment through the regeneration exhaust valve V311 until the regeneration temperature drops below 50°C. The cooling is completed and switch to the next step. In the second half of the cycle, the adsorption tube B2 tower adsorbs and the adsorption tube A1 tower regenerates. The principle is the same as above.

[0034] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. Split-flow regeneration type blast heat adsorption dryer, characterized in that: The invention comprises an adsorption cylinder A (1) and an adsorption cylinder B (2) connected by pipelines, wherein the top and bottom of the adsorption cylinder A (1) are respectively connected to an air outlet valve D14 (20) and a pressure relief valve V6 (13), the top and bottom of the adsorption cylinder B (2) are respectively connected to an air outlet valve D13 (21) and a pressure relief valve V5 (14), the pressure relief valve V6 (13) is connected to a regeneration exhaust valve V4 (10) and an air intake valve V2 (8), the pressure relief valve V5 (14) is connected to a regeneration exhaust valve V3 (11) and an air intake valve V1 (9), the air outlet valve D14 (20) is connected to a heating gas regeneration valve D12 (15), the air outlet valve D13 (21) is connected to a heating gas regeneration valve D11 (16), and further comprises: Heating regeneration passage, cold blowing regeneration passage and pressurizing passage.

2. The split-flow regeneration type air-blast heat adsorption dryer according to claim 1, characterized in that: The gas outlet valve D14 (20), the heating gas regeneration valve D12 (15) and the gas outlet valve D13 (21), the heating gas regeneration valve D11 (16) are fixedly connected.

3. The split-flow regeneration type air-blast heat adsorption dryer according to claim 1, characterized in that: The heating regeneration passage comprises a filter (4) connected by a pipeline, the filter (4) is fixedly connected to a blower (5), the blower (5) is fixedly connected to a heater (3), the heater (3) is connected to a gas check valve D+10 (19), the gas check valve D+10 (19) is connected to a heating gas regeneration valve D+12 (15) and a heating gas regeneration valve D+11 (16), the heating gas regeneration valve D+12 (15) is connected to a shunt flow regulating valve T-1 (6), the shunt flow regulating valve T-1 (6) is connected to a heating gas regeneration valve D+16 (17), the heating gas regeneration valve D+16 (17) is connected to an adsorption cylinder A (1), the heating gas regeneration valve D+11 (16) is connected to a shunt flow regulating valve T-2 (7), the shunt flow regulating valve T-2 (7) is connected to a heating gas regeneration valve D+17 (18), the heating gas regeneration valve D+17 (18) is connected to an adsorption cylinder B (2).

4. The split-flow regeneration type air-blast heat adsorption dryer according to claim 1, characterized in that: The cold blow regeneration passage includes a cold blow valve V7 (12) connected by a pipeline, the cold blow valve V7 (12) is connected to an outlet valve D14 (20), an outlet valve D13 (21), a heating gas regeneration valve D12 (15), and a heating gas regeneration valve D11 (16), the cold blow valve V7 (12) is connected to an adsorption cylinder B (2), the adsorption cylinder B (2) is connected to a regeneration exhaust valve V3 (11), and the regeneration exhaust valve V3 (11) is connected to a regeneration exhaust gas outlet.

5. The split-flow regeneration type air-blast heat adsorption dryer according to claim 1, characterized in that: The pressurizing passage includes the top of the adsorption cylinder B (2) connected to the cold blowing valve V7 (12), and the top of the adsorption cylinder B (2) is connected to the regeneration exhaust valve V3 (11).

6. The split-flow regeneration type air-blast heat adsorption dryer according to claim 3, characterized in that: The diverter flow regulating valve T1 (6) is connected to the top and the middle of the adsorption cylinder A (1), and the diverter flow regulating valve T2 (7) is connected to the top and the middle of the adsorption cylinder B (2).

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