Zero-gas-consumption waste gas regeneration heatless dryer

Abstract

The utility model discloses a zero-gas-consumption waste gas regeneration heatless dryer which comprises an adsorption tower A and an adsorption tower B, the regeneration gas pipe is connected with the adsorption tower A and the adsorption tower B; the waste gas pipe is connected with the regeneration gas pipe; the waste gas storage tank is connected with the waste gas pipe; and the waste gas check valves are arranged on the regeneration gas pipe and are positioned on two sides of the waste gas pipe. The waste gas storage tank is used for collecting and storing the waste gas generated by the oxygen generation equipment or the nitrogen generation equipment, and the waste gas is introduced into the adsorption tower needing the regeneration dryer to be used as regeneration gas, so that additional regeneration gas does not need to be externally connected; product gas prepared by another dryer does not need to be introduced into the adsorption tower needing regeneration to be used as regeneration gas, so that zero gas consumption is realized, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to a dryer, in particular to a zero-air-consumption waste-gas regenerative heatless dryer. Background Art

[0002] In the existing technology, when the adsorption tower in the dryer needs to be regenerated and desorbed, it is either externally connected with a gas for regenerating and desorbing the adsorbent in the adsorption tower or the dried product gas from another adsorption tower enters the heater after being decompressed by a regulating valve and is heated. This part of the product gas enters the adsorption tower that needs to be regenerated and analyzed to desorb and regenerate the adsorbent in the adsorption tower, restoring the drying capacity of the adsorbent. The regeneration gas is discharged into the atmosphere through the exhaust pipe; these two methods either require external gas or require introducing the dried product gas from one adsorption tower into the adsorption tower to desorb and regenerate the adsorbent in the adsorption tower, resulting in problems of large gas consumption and high cost. Therefore, a zero-air-consumption waste-gas regenerative heatless dryer is proposed. Content of the Utility Model

[0003] The purpose of the utility model is to propose a zero-air-consumption waste-gas regenerative heatless dryer to solve the above problems.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a zero-air-consumption waste-gas regenerative heatless dryer, including adsorption tower A and adsorption tower B; it is characterized by further including a regeneration gas pipe connecting adsorption tower A and adsorption tower B, an exhaust gas pipe connected to the regeneration gas pipe, an exhaust gas storage tank connected to the exhaust gas pipe, and exhaust gas check valves arranged on the regeneration gas pipe on both sides of the exhaust gas pipe.

[0005] Further preferably, it further includes an inlet pipe connected to adsorption tower A and adsorption tower B, and control valves are installed on the pipelines where the inlet pipe is respectively connected to adsorption tower A and adsorption tower B.

[0006] Further preferably, it further includes an exhaust pipe communicating with adsorption tower A and adsorption tower B, control valves are also installed on the pipelines where the exhaust pipe is respectively connected to adsorption tower A and adsorption tower B, and a silencer is installed on the exhaust pipe.

[0007] Further preferably, it further includes an outlet pipe communicating with adsorption tower A and adsorption tower B, and a control valve and an outlet check valve are connected in parallel between the storage tank and adsorption tower A and adsorption tower B.

[0008] Further preferably, it further includes a PLC controller connected to the control valve for controlling the control valve.

[0009] Advantages of the present utility model: Through the provision of an exhaust gas storage tank, it is used to collect and store the exhaust gas generated by an oxygen generation device or a nitrogen generation device, introduce the exhaust gas into the adsorption tower of the regenerative dryer that needs to be regenerated as the regeneration gas, without the need to externally connect additional regeneration gas, nor to introduce the product gas produced by another dryer into the adsorption tower that needs to be regenerated as the regeneration gas, with zero gas consumption and cost savings. Description of the Drawings

[0010] Appendix Figure 1 is a process schematic diagram of the present utility model;

[0011] Appendix Figure 2 is a process schematic diagram when the present utility model is in use.

[0012] Legend description: 1. Adsorption tower A; 2. Adsorption tower B; 3. Regeneration gas pipe; 4. Exhaust gas pipe; 5. Exhaust gas storage tank; 6. Exhaust gas check valve; 7. Inlet pipe; 8. Control valve; 9. Exhaust pipe; 10. Silencer; 11. Outlet pipe; 12. Outlet check valve; 13. PLC controller. Detailed Embodiment

[0013] Next, we will further explain a zero-gas-consumption waste gas regenerative heatless dryer according to the present utility model in conjunction with the drawings.

[0014] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture as shown in the drawings. If this specific posture changes, then the directional indication also changes accordingly.

[0015] In the present utility model, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense; for example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0016] Refer to Figure 1 As shown in, a zero-gas-consumption waste gas regenerative heatless dryer includes an adsorption tower A1 and an adsorption tower B2; it is characterized in that it further includes a regeneration gas pipe 3 connecting the adsorption tower A1 and the adsorption tower B2, an exhaust gas pipe 4 connected to the regeneration gas pipe 3, an exhaust gas storage tank 5 connected to the exhaust gas pipe 4, and an exhaust gas check valve 6 provided on the regeneration gas pipe 3 and on both sides of the exhaust gas pipe 4;

[0017] A blowdown pipe 14 is connected to the bottom of the waste gas storage tank 5, and a control valve 8 is installed on the blowdown pipe 14;

[0018] Through the setting of the waste gas storage tank 5, it is used to collect and store the waste gas generated by the oxygen generation equipment or nitrogen generation equipment, introduce the waste gas into the adsorption tower of the regenerative dryer as the regeneration gas, without connecting an additional regeneration gas externally, and without introducing the product gas produced by another dryer into the adsorption tower to be regenerated as the regeneration gas, with zero gas consumption and cost savings.

[0019] In one embodiment, an inlet pipe 7 connected to the adsorption tower A1 and the adsorption tower B2 is further included, and control valves 8 are installed on the pipelines where the inlet pipe 7 is respectively connected to the adsorption tower A1 and the adsorption tower B2;

[0020] In one embodiment, an exhaust pipe 9 communicating with the adsorption tower A1 and the adsorption tower B2 is further included, control valves 8 are also installed on the pipelines where the exhaust pipe 9 is respectively connected to the adsorption tower A1 and the adsorption tower B2, and a silencer 10 is installed on the exhaust pipe 9, and the silencer 10 is used to reduce the noise during exhaust.

[0021] In one embodiment, an outlet pipe 11 communicating with the adsorption tower A1 and the adsorption tower B2 is further included, and a control valve 8 and an outlet check valve 12 are connected in parallel between the storage tank and the adsorption tower A1 and the adsorption tower B2;

[0022] In one embodiment, a PLC controller 13 connected to the control valve 8 for controlling the control valve 8 is further included; the control valve 8 can be an electric valve, a pneumatic valve or a manual valve, and when an electric valve or a pneumatic valve is adopted, it can be automatically controlled by the PLC controller 13.

[0023] When the present utility model is in use: the waste gas storage tank 5 is connected to the nitrogen generation equipment or oxygen generation equipment through a pipeline, and is used to collect the waste gas generated by the nitrogen generation equipment or oxygen generation equipment into the waste gas storage tank 5;

[0024] When the adsorption tower A1 of the dryer needs to be regenerated with regeneration gas, the waste gas in the waste gas storage tank 5 enters the adsorption tower A1 through the waste gas pipe 4, the regeneration gas pipe 3 and the waste gas check valve 6 as the regeneration gas to regenerate the adsorption tower A1;

[0025] When the adsorption tower B2 of the dryer needs to be regenerated with regeneration gas, the waste gas in the waste gas storage tank 5 enters the adsorption tower B2 through the waste gas pipe 4, the regeneration gas pipe 3 and the waste gas check valve 6 as the regeneration gas to regenerate the adsorption tower B2;

[0026] When one of the adsorption towers A1 or B2 needs to be regenerated, there is no need to introduce additional regeneration gas or introduce the product gas generated in another adsorption tower into the adsorption tower to be regenerated for regeneration, so as to achieve zero gas consumption and low cost.

[0027] The protection scope of the present utility model is not limited to the above embodiments and their variations. Any conventional modifications and substitutions made by those skilled in the art based on the content of this embodiment shall fall within the protection scope of the present utility model.

Claims

1. A zero-air-consumption waste gas regenerative heatless dryer, comprising an adsorption tower A (1) and an adsorption tower B (2); characterized in that It also includes a regeneration gas pipe (3) connecting the adsorption tower A (1) and the adsorption tower B (2), an exhaust gas pipe (4) connected to the regeneration gas pipe (3), an exhaust gas storage tank (5) connected to the exhaust gas pipe (4), and exhaust gas check valves (6) provided on the regeneration gas pipe (3) and on both sides of the exhaust gas pipe (4).

2. The zero-air-consumption waste gas regenerative heatless dryer according to claim 1, wherein: It also includes an intake pipe (7) connected to the adsorption tower A (1) and the adsorption tower B (2), and control valves (8) are installed on the pipelines where the intake pipe (7) is respectively connected to the adsorption tower A (1) and the adsorption tower B (2).

3. The zero-air-consumption waste gas regeneration heatless dryer according to claim 1, characterized in that: It also includes an exhaust pipe (9) communicating with the adsorption tower A (1) and the adsorption tower B (2), control valves (8) are also installed on the pipelines where the exhaust pipe (9) is respectively connected to the adsorption tower A (1) and the adsorption tower B (2), and a silencer (10) is also installed on the exhaust pipe (9).

4. A zero-air-consumption waste gas regenerative heatless dryer according to claim 1, characterized in that: It also includes an outlet pipe (11) communicating with the adsorption tower A (1) and the adsorption tower B (2), and a control valve (8) and an outlet check valve (12) are connected in parallel with the adsorption tower A (1) and the adsorption tower B (2) to the gas storage tank.

5. A zero-air-consumption waste gas regenerative heatless dryer according to claim 2 or 4, characterized in that: It also includes a PLC controller (13) connected to the control valve (8) for controlling the control valve (8).

Images