A temperature and humidity adjusting device in a closed smoke stack nitrogen filling curing process

Abstract

The utility model discloses a kind of temperature and humidity adjusting devices in closed smoke ridge nitrogen filling curing process, including the temperature adjusting box one for carrying out primary temperature regulation to nitrogen filling airflow, the temperature adjusting box two for carrying out secondary temperature regulation to airflow, and the flexible container between the temperature adjusting box one and temperature adjusting box two, the temperature adjusting box one, flexible container and temperature adjusting box two are sequentially connected in nitrogen filling gas path, the flexible container is configured to carry out humidity buffering and regulation to airflow after primary temperature regulation, and output after secondary temperature regulation by the temperature adjusting box two.

Description

Technical Field

[0001] This utility model relates to the field of tobacco storage and maintenance technology, specifically to a temperature and humidity control device in the process of nitrogen-filling maintenance of sealed tobacco stacks. Background Technology

[0002] Generally, to remove the grassy and impure smells of tobacco leaves, reduce the harshness of the flavor, improve the aroma quality, and harmonize the internal chemical components, a aging period of about two years is required. The aging process is mainly affected by external factors such as oxygen concentration, temperature, and humidity. Referring to the latest standards for tobacco storage and preservation, the temperature in general tobacco warehouses should be controlled below 32℃, and the relative humidity should be controlled between 50% and 65%; the temperature in air-conditioned warehouses should be controlled below 30℃, and the relative humidity should be controlled between 50% and 65%. Due to regional climate differences, the control of temperature and humidity in the storage and preservation of raw materials varies considerably, generally exhibiting typical characteristics of high temperature and high humidity in southern regions, and dry, cold, and low humidity in northern regions. These differences in ambient temperature and humidity conditions result in poor consistency in the aging and preservation of stored raw materials.

[0003] Currently, among the mechanical nitrogen production equipment used in domestic green controlled atmosphere storage for grain, atmospheric pressure nitrogen production equipment has the characteristics of no pressure vessel and low operating energy consumption. It mainly uses an atmospheric pressure fan as the gas power to draw raw material gas and transport it to a molecular sieve adsorption tower for gas adsorption and separation. A vacuum pump is used to perform vacuum desorption on the molecular sieve adsorption tower that is saturated with adsorption. In the nitrogen production process, depending on the different molecular sieves and operating processes, both atmospheric pressure fans and vacuum pumps can be used as the product gas outlet of the atmospheric pressure nitrogen production equipment. During the operation of atmospheric pressure fans and vacuum pumps, a large amount of heat is generated and discharged with the airflow. In particular, the outlet temperature of vacuum pumps can reach 90℃~120℃ or higher. Although corresponding cooling devices are configured, it is difficult to stably control the outlet temperature and humidity in actual application, which still poses certain problems for maintaining the tobacco curing environment. Utility Model Content

[0004] The purpose of this utility model is to provide a temperature and humidity control device for the nitrogen-filling curing process of sealed tobacco stacks. Combining the current nitrogen-filling curing mode based on atmospheric pressure nitrogen filling equipment, by setting up a matching temperature and humidity control device at the outlet of the atmospheric pressure nitrogen filling equipment, it is possible to accurately control the temperature and humidity of the stack environment during the tobacco curing process in different regions and seasons. By making reasonable use of the heat of the atmospheric pressure nitrogen filling equipment, it is possible to achieve precise regulation and energy-saving temperature and humidity control within the stack.

[0005] The technical solution adopted by this utility model to solve its technical problem is to propose a temperature and humidity regulation device in the process of nitrogen filling and curing of sealed smoke stacks. It includes a temperature control box one for primary temperature regulation of nitrogen filling airflow, a temperature control box two for secondary temperature regulation of airflow, and a flexible container disposed between the temperature control box one and the temperature control box two. The temperature control box one, the flexible container and the temperature control box two are connected in series in the nitrogen filling air path. The flexible container is configured to buffer and regulate the humidity of the airflow after primary temperature regulation, and output it after secondary temperature regulation by the temperature control box two.

[0006] Furthermore, both temperature control chamber one and temperature control chamber two achieve temperature regulation through built-in heat exchangers, and the heat exchange medium pipeline of the heat exchanger is equipped with a regulating valve for controlling the flow rate to precisely regulate the temperature.

[0007] Furthermore, the bottom of the heat exchanger of the temperature control box one is provided with a drain outlet one with a drain valve one; the bottom of the heat exchanger of the temperature control box two is provided with a drain outlet two with a drain valve two.

[0008] Furthermore, it also includes an airflow bypass system, which comprises:

[0009] Valve 2, connected between the nitrogen port of the atmospheric pressure nitrogen filling equipment and the inlet of the flexible container, is used to bypass the airflow to the temperature control box 1;

[0010] Valve four, connected between the outlet of the flexible container and the nitrogen filling port, is used to bypass the airflow through the temperature control box two.

[0011] Furthermore, it also includes valve one and valve three, with valve two connected in parallel with valve one in the gas path between the nitrogen port of the atmospheric pressure nitrogen filling equipment and the inlet of the flexible container; valve four is connected in parallel with the series path of valve three and temperature control box two in the gas path between the outlet of the flexible container and the nitrogen filling port.

[0012] Furthermore, a fresh air inlet is provided on the flexible container, and a fresh air valve is provided at the fresh air inlet for introducing external air to assist in regulating humidity.

[0013] Furthermore, the heat exchangers in the temperature control chamber one and temperature control chamber two are composed of surface coolers or finned tubes.

[0014] Furthermore, the internal volume of the flexible container is not less than one-half of the sum of the volumes of temperature control chamber one and temperature control chamber two.

[0015] Furthermore, the heat exchange medium in the heat exchangers of the first and / or second temperature control chambers is water, oil, or condensate from external equipment.

[0016] Furthermore, the temperature control chamber is configured to use the waste heat from the atmospheric pressure nitrogen filling equipment to heat the airflow, or to use a refrigerant to cool the airflow.

[0017] The beneficial effects of this utility model are as follows:

[0018] This utility model proposes a temperature and humidity control device for nitrogen-filled curing of sealed tobacco stacks. Combining the current nitrogen-filled curing mode based on atmospheric pressure nitrogen filling equipment, it creatively sets up a matching temperature and humidity control device at the outlet of the atmospheric pressure nitrogen filling equipment to achieve precise control of the temperature and humidity of the stack environment during tobacco curing in different regions and seasons. It achieves the above effects by making reasonable use of the heat of the atmospheric pressure nitrogen filling equipment, and has the characteristics of simple structure, energy saving and consumption reduction, and significant effect.

[0019] Through a three-stage treatment process of "primary temperature control, humidity control, and secondary temperature control," the nitrogen entering the tobacco stack can be precisely controlled in terms of temperature and humidity, thereby stabilizing the microenvironment inside the tobacco stack and ensuring consistent aging.

[0020] The device in this application is directly integrated into the nitrogen filling pipeline and is a closed system. It can regulate temperature and humidity without affecting the nitrogen filling process. Since it is a closed component in the nitrogen pipeline network, it will not cause nitrogen leakage or emission, and therefore will not affect the nitrogen filling and curing effect of the smokestack. At the same time, it does not require large-scale control of the entire warehouse environment, which reduces the initial investment and operating costs.

[0021] Based on the atmospheric pressure nitrogen equipment, the heat of the equipment is rationally utilized, and the temperature and humidity are regulated by using the waste heat of the equipment, which effectively improves the energy utilization efficiency and has the characteristics of energy saving and consumption reduction.

[0022] By setting up a bypass valve system, multiple working modes can be achieved (such as multi-stage temperature regulation, high-temperature direct charging, etc.), which can adapt to the maintenance needs of different seasons and regions and have a wide range of applications. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0024] Figure 1 This is a schematic diagram of the temperature and humidity control device in the nitrogen curing process of a sealed smoke stack according to an embodiment of the present invention.

[0025] In the diagram: 1. Nitrogen port of the atmospheric pressure nitrogen charging equipment; 2. Nitrogen charging port; 3. Temperature control box one; 4. Temperature control box two; 5. Flexible container; 6. Valve one; 7. Valve two; 8. Valve three; 9. Valve four; 10. Fresh air inlet; 11. Fresh air valve; 12. Heat exchanger one; 13. Heat exchanger two; 14. Heat exchange medium inlet one; 15. Heat exchange medium outlet one; 16. Regulating valve one; 17. Regulating valve two; 18. Heat exchange medium inlet two; 19. Heat exchange medium outlet two; 20. Regulating valve three; 21. Regulating valve four; 22. Drain valve one; 23. Drain outlet one; 24. Drain outlet two; 25. Drain valve two. Detailed Implementation

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model and the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort. Furthermore, the design orientation only indicates the relative positional relationship between the components, not the absolute positional relationship.

[0027] This utility model embodiment provides a temperature and humidity control device for the nitrogen-filled curing process of a sealed smoke stack. Please refer to [link to relevant documentation]. Figure 1 It includes a temperature control chamber 3 for primary temperature regulation of the nitrogen-filled gas flow, a temperature control chamber 4 for secondary temperature regulation of the gas flow, and a flexible container 5 located between the temperature control chamber 3 and the temperature control chamber 4. The temperature control chamber 3, the flexible container 5 and the temperature control chamber 4 are connected in series in the nitrogen-filled gas path. The flexible container 5 is configured to buffer and regulate the humidity of the gas flow after primary temperature regulation, and output the gas flow after secondary temperature regulation by the temperature control chamber 4.

[0028] In this application, temperature control chamber 3, temperature control chamber 4, and flexible container 5 located between them are connected in series in the gas path, that is: the air inlet of temperature control chamber 3 is connected to the nitrogen port 1 of the atmospheric pressure nitrogen charging equipment, and its exhaust port is connected to the inlet of flexible container 5; the outlet of flexible container 5 is connected to the air inlet of temperature control chamber 4 through valve 3 8; the exhaust port of temperature control chamber 4 is connected to the nitrogen charging port 2 leading to the smoke stack.

[0029] Temperature control chamber 1 (3) and temperature control chamber 2 (4) are equipped with heat exchangers 12 and 13 respectively. They exchange heat with the airflow through the incoming heat exchange medium (such as water, oil, or condensate) to achieve temperature regulation. The flow rate is precisely controlled by regulating valves (16, 17, 20, 21).

[0030] Nitrogen gas first enters temperature control chamber 3 for primary temperature regulation, then undergoes humidity buffering and balancing in flexible container 5, and finally undergoes secondary temperature fine-tuning in temperature control chamber 4, thereby outputting nitrogen gas that meets the requirements.

[0031] Based on the basic series piping, key bypass pipes and valves were added to form an airflow bypass system, including two bypass paths:

[0032] Valve 7, which is connected between the nitrogen port 1 of the atmospheric pressure nitrogen filling equipment and the inlet of the flexible container 5, is used to bypass the airflow to the temperature control box 3.

[0033] Valve 49, connected between the outlet of flexible container 5 and nitrogen filling port 2, is used to bypass the airflow to temperature control box 24.

[0034] The corresponding configurations are valve 1 (6) and valve 3 (8), and valve 2 (7) connected in parallel with valve 1 (6) in the gas path between nitrogen port 1 of the atmospheric pressure nitrogen filling equipment and the inlet of flexible container 5; valve 4 (9) connected in parallel with the series connection of valve 3 (8) and temperature control box 2 (4) in the gas path between the outlet of flexible container 5 and nitrogen filling port 2.

[0035] For example, the first bypass pipe is connected in parallel with valve 6, with one end connected to nitrogen port 1 and the other end connected to the inlet of flexible container 5. Valve 7 is installed on this pipe. The second bypass pipe is connected in parallel with the series connection of "valve 8 + temperature control box 4", with one end connected to the outlet of flexible container 5 and the other end directly connected to nitrogen port 2. Valve 9 is installed on this pipe.

[0036] Based on this airflow bypass system, different airflow paths can be constructed by operating four valves (6, 7, 8, 9). In specific implementation, the appropriate mode can be selected according to the actual situation. The achievable airflow path modes are as follows:

[0037] Full-process mode (precise control): Open valve 1 (6) and valve 3 (8), close valve 2 (7) and valve 4 (9). The airflow undergoes a complete three-stage treatment: "temperature control chamber 1 (3) → flexible container (5) → temperature control chamber 2 (4)". This achieves the most precise control (compared to other modes).

[0038] Bypass-based two-stage temperature control mode: Open valve 1 (6) and valve 4 (9), close valve 2 (7) and valve 3 (8). The airflow path is "temperature control box 1 (3) → flexible container 5", then bypass temperature control box 2 (4) for direct output. This mode is suitable for scenarios where temperature accuracy requirements are not high, but basic cooling / heating and humidity regulation are needed, saving energy consumption for two-stage temperature control.

[0039] Bypass Level 1 Temperature Control Mode: Open valves 2 (7) and 3 (8), close valves 1 (6) and 4 (9). The airflow path is "flexible container 5 → temperature control box 2 (4)", suitable for scenarios that utilize the existing heat of the gas and require only humidification and secondary fine-tuning. This mode bypasses two temperature control boxes and directly delivers high-temperature gas. It is suitable for scenarios requiring rapid increase in stack temperature or extremely low environmental load.

[0040] High-Temperature Direct-Flow Mode: Open valves 2 (7) and 4 (9), close valves 1 (6) and 3 (8). High-temperature gas bypasses the two temperature control chambers, passing only through the flexible container 5 for buffering before being directly injected into the smoke stack. This mode is suitable for scenarios requiring rapid injection of high-temperature gas. In this mode, the temperature and humidity control unit is completely bypassed, and the high-temperature nitrogen generated by the equipment is directly delivered to the smoke stack. This is suitable for specific process stages that utilize the waste heat of nitrogen for rapid heating and dehumidification of the smoke stack, maximizing the use of heat generated during equipment operation and resulting in significant energy savings.

[0041] In this application, auxiliary humidity control can be achieved through the flexible container 5, and this humidity control effect is applicable during primary temperature regulation.

[0042] In a preferred embodiment, a fresh air inlet 10 is provided on the flexible container 5, and a fresh air valve 11 is provided at the fresh air inlet 10 for introducing external air to assist in regulating humidity.

[0043] Specifically, the flexible container 5 has a fresh air inlet 10 and a fresh air valve 11 for introducing or expelling air to regulate the absolute humidity of the gas inside the container. When it is necessary to reduce the absolute humidity of the gas, the fresh air valve 11 can be opened to introduce dry external air for mixing, which is an effective auxiliary humidity control method.

[0044] When humidity regulation is applied, the gas, after primary temperature control, enters the flexible container 5. Due to temperature changes, the relative humidity of the gas changes. The flexible container 5 provides a buffer space where the gas is retained, and some supersaturated water vapor may condense. The absolute humidity of the gas can be precisely corrected by introducing dry or humid outside air by opening the fresh air valve 11.

[0045] During the secondary temperature control, the humidified gas enters the temperature control chamber 4 through valve 38. By controlling heat exchanger 213, the gas temperature is finely adjusted to reach the target delivery temperature (for example, to prevent condensation due to cooling), thereby precisely controlling the temperature and humidity of the gas delivered to the smoke stack.

[0046] The treated gas is discharged from temperature control chamber 2 (4) and enters the sealed flue gas stack through nitrogen filling port 2. Applicable to full-process mode.

[0047] In this application, heat exchanger 12 and heat exchanger 23 are composed of a number of heat exchange components, including but not limited to surface coolers and finned tubes, the number of which can range from 1 to 99. Heat exchanger 12 and heat exchanger 23 are made of materials including but not limited to stainless steel, galvanized steel, PVC, etc., and the heat exchange medium used includes but is not limited to water, oil, etc.

[0048] In this application, the heat exchangers in temperature control chamber 3 and temperature control chamber 4 are described as being composed of surface coolers or finned tubes.

[0049] Specifically, heat exchanger 12 and heat exchanger 23 are preferably in the form of surface coolers or finned tubes, and both are provided with drain ports (23, 24) and drain valves (22, 25) at the bottom for draining condensate.

[0050] The internal volume of the flexible container 5 is designed to be no less than half the sum of the volumes of temperature control chamber 3 and temperature control chamber 4, in order to ensure sufficient humidity regulation capability.

[0051] The heat exchange medium in the heat exchangers of temperature control chamber 3 and / or temperature control chamber 4 is water, oil, or condensate from external equipment.

[0052] For example, the temperature control chamber 3 is configured to use the waste heat from the atmospheric pressure nitrogen filling equipment to heat the airflow, or to use a refrigerant to cool the airflow. The heat exchange medium can preferentially use condensate from external equipment to achieve cascaded energy utilization. For example, when cooling is required, the heat exchange medium can be condensate directly, or condensate from the chiller inside the equipment or other facilities can be used, saving energy consumption compared to using a refrigerated dryer.

[0053] In this application, such as Figure 1 As shown, the gas connection method is as follows: the nitrogen port 1 of the atmospheric pressure nitrogen charging equipment is connected to the inlet of valve 6 via a pipeline. The outlet of valve 6 is connected to the inlet of temperature control chamber 3. The exhaust port of temperature control chamber 3 is connected to the inlet of flexible container 5. One outlet of flexible container 5 is connected to the inlet of temperature control chamber 4 via valve 8. The exhaust port of temperature control chamber 4 is connected to nitrogen charging port 2.

[0054] In addition, the nitrogen port 1 of the atmospheric pressure nitrogen filling equipment is directly connected to the inlet of the flexible container 5 through valve 2 7, forming the first bypass.

[0055] Another outlet of the flexible container 5 is directly connected to the nitrogen filling port 2 via valve 4 9, forming a second bypass.

[0056] In the temperature control system, the specific connection relationships are as follows:

[0057] A heat exchanger 12 is installed inside the temperature control chamber 3. Its heat exchange medium inlet 14 and outlet 15 are connected to an external heat source via pipes, and regulating valves 16 and 17 are respectively installed on the pipes to control the flow rate of the heat exchange medium. A drain outlet 23 is located at the bottom of the heat exchanger 12, controlled by a drain valve 22. Based on this, primary temperature control can be achieved; that is, by controlling the flow rate and temperature of the heat exchange medium (such as cold water) flowing through the heat exchanger 12, the high-temperature nitrogen gas can be initially cooled (or heated).

[0058] A heat exchanger 213 is installed inside the temperature control chamber 24. Its heat exchange medium inlet 218 and outlet 219 are also connected to external heat or cold sources, and are correspondingly equipped with regulating valves 320 and 421. A drain outlet 24 is located at the bottom of the heat exchanger 213, controlled by drain valve 25. This allows for two-stage temperature control; that is, by controlling the heat exchanger 213, the gas temperature is fine-tuned to reach the target delivery temperature (e.g., to prevent condensation due to cooling), thereby precisely controlling the temperature and humidity of the gas supplied to the smokestack.

[0059] Based on this, precise temperature control can be achieved by adjusting the opening degree of regulating valves one to four, enabling temperature regulation from 10℃ to 70℃ and humidity regulation from 5% to 95%.

[0060] In this application, the overall connection relationship is as follows:

[0061] The nitrogen port 1 of the atmospheric pressure nitrogen filling equipment is connected to the air inlet of temperature control box 3. The flexible container 5 is connected to the exhaust port of temperature control box 3 and the inlet of temperature control box 4 respectively. The exhaust port of temperature control box 4 is connected to the nitrogen filling port 2. A heat exchanger 12 is installed in temperature control box 3. The heat exchanger 12 is equipped with a heat exchange medium inlet 14 and a heat exchange medium outlet 15. A heat exchanger 23 is installed in temperature control box 4. The heat exchanger 23 is equipped with a heat exchange medium inlet 28 and a heat exchange medium outlet 29.

[0062] Based on this, the following functions and effects can be achieved:

[0063] The nitrogen gas at nitrogen inlet 1 of the atmospheric pressure nitrogen filling equipment is conditioned by temperature control box 3, then conditioned by humidity control container 5, and then further conditioned by temperature control box 4 before being sent into the nitrogen filling port, thus completing the temperature and humidity regulation.

[0064] The flexible container 5 can regulate the humidity of the gas after the temperature of the temperature control box 3 has been adjusted.

[0065] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0066] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A temperature and humidity control device for nitrogen curing in a sealed smoke stack, characterized in that, It includes a temperature control chamber 1 (3) for primary temperature regulation of nitrogen-filled gas flow, a temperature control chamber 2 (4) for secondary temperature regulation of gas flow, and a flexible container (5) disposed between the temperature control chamber 1 (3) and the temperature control chamber 2 (4). The temperature control chamber 1 (3), the flexible container (5) and the temperature control chamber 2 (4) are connected in series in the nitrogen-filled gas path. The flexible container (5) is configured to perform humidity buffering and regulation on the gas flow after primary temperature regulation, and output the gas flow after secondary temperature regulation by the temperature control chamber 2 (4).

2. The temperature and humidity control device for nitrogen curing of sealed smoke stacks according to claim 1, characterized in that, Temperature regulation of both temperature control chamber 1 (3) and temperature control chamber 2 (4) is achieved through built-in heat exchangers. The heat exchanger is equipped with a regulating valve on the heat exchange medium pipeline for controlling the flow rate to precisely regulate the temperature.

3. The temperature and humidity control device for nitrogen curing of sealed smoke stacks according to claim 2, characterized in that, The bottom of the heat exchanger of the temperature control box 1 (3) is provided with a drain outlet 1 (23) with a drain valve 1 (22); the bottom of the heat exchanger of the temperature control box 2 (4) is provided with a drain outlet 2 (24) with a drain valve 2 (25).

4. The temperature and humidity control device for nitrogen curing of sealed smoke stacks according to claim 1, characterized in that, It also includes an airflow bypass system, which comprises: Valve 2 (7) is connected between the nitrogen port (1) of the atmospheric pressure nitrogen filling equipment and the inlet of the flexible container (5) to bypass the airflow to the temperature control box 1 (3); Valve four (9), connected between the outlet of the flexible container (5) and the nitrogen filling port (2), is used to bypass the airflow through the temperature control box two (4).

5. The temperature and humidity control device for nitrogen curing of sealed smoke stacks according to claim 4, characterized in that, It also includes valve one (6) and valve three (8). Valve two (7) and valve one (6) are connected in parallel in the gas path between the nitrogen port (1) of the atmospheric pressure nitrogen filling equipment and the inlet of the flexible container (5). Valve four (9) and the series passage of valve three (8) and temperature control box two (4) are connected in parallel in the gas path between the outlet of the flexible container (5) and the nitrogen filling port (2).

6. The temperature and humidity control device for nitrogen curing of sealed smoke stacks according to claim 1, characterized in that, A fresh air inlet (10) is provided on the flexible container (5), and a fresh air valve (11) is provided at the fresh air inlet (10) for introducing external air to assist in regulating humidity.

7. The temperature and humidity control device for nitrogen curing of sealed smoke stacks according to claim 1, characterized in that, The heat exchangers in the temperature control chamber one (3) and temperature control chamber two (4) are composed of surface coolers or finned tubes.

8. The temperature and humidity control device for nitrogen curing of sealed smoke stacks according to claim 1, characterized in that, The internal volume of the flexible container (5) is not less than half the sum of the volumes of the temperature control box one (3) and the temperature control box two (4).

9. The temperature and humidity control device for nitrogen curing of sealed smoke stacks according to claim 1, characterized in that, The heat exchange medium in the heat exchangers of the first (3) and / or the second (4) temperature control chambers is water, oil or condensate from external equipment.

10. The temperature and humidity control device for nitrogen curing of sealed smoke stacks according to claim 1, characterized in that, The temperature control chamber (3) is configured to use the waste heat of the atmospheric pressure nitrogen filling equipment to heat the airflow, or to use a refrigerant to cool the airflow.

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