Device for removing water through nitrogen heating

Abstract

The invention relates to the technical field of industrial heating water removal, in particular to a nitrogen heating water removal device. The device comprises a heating cylinder and a condensing box, the heating cylinder is used for heating nitrogen, the condensing box is used for condensing and dewatering heated gas, a second gas inlet pipe and a second gas outlet pipe are arranged on the heating cylinder and used for allowing nitrogen to enter and exit from the heating cylinder, and a heating piece is arranged in the heating cylinder and is in an I-shaped cylinder shape. The outer wall of the heating piece is connected with the inner wall of the heating cylinder, the heating piece is made of heat conduction materials, the heating piece is sleeved with an electric heating disc and used for heating the heating piece, a plurality of gas guide holes are formed in the heating piece, and nitrogen entering the heating piece is distributed into multiple groups through the gas guide holes to be independently heated. The combination of the heating piece and the multiple gas guide holes is adopted for heating nitrogen, the nitrogen is conveyed through the gas guide holes, the nitrogen can be heated more uniformly, and the heating effect of the nitrogen is improved.

Description

Technical Field

[0001] The invention relates to the technical field of industrial heating and dehydration, and in particular to a nitrogen heating and dehydration device. Background Art

[0002] Nitrogen heating and dehydration equipment is a professional equipment used to heat nitrogen to remove moisture from it. This type of equipment is widely used in many fields, such as chemical, electronic, food and other industries, which have high requirements for the purity and dryness of nitrogen. Its working principle is usually based on the principle of heat exchange and condensation. The equipment heats the nitrogen to increase its temperature, thereby increasing the evaporation rate of water in the nitrogen. Subsequently, the evaporated water is condensed into liquid through a condenser, thereby achieving the purpose of nitrogen dehydration.

[0003] In the prior art, there is a nitrogen heating device (Announcement No.: CN216481591U), which includes a heating tube body and a heating device. An air inlet pipe is provided on the upper part of the heating tube body, and an air outlet pipe is provided on the bottom of the heating tube body. The heating device is detachably connected to the heating tube body, and a control panel is provided on the outer side of the heat pipe body. The control panel is used to control the heating device, and there are several heating devices. Although the nitrogen heating device can improve the heating efficiency of nitrogen, in actual use, after the nitrogen enters the heating tube body in a concentrated manner, some nitrogen that is not in contact with the heating element is subjected to poor heating effect, which easily causes uneven heating, thereby affecting the heating effect of the nitrogen.

[0004] In the prior art, there is a high-efficiency gas condenser (publication number: CN218723390U), which has an air inlet, an air outlet and a heat exchanger; the heat exchanger is between the air inlet and the air outlet; the heat exchanger is composed of a plurality of heat exchange plates arranged in parallel and stacked; a gas flow channel is formed between adjacent heat exchange plates; the entire upper and lower surfaces of the heat exchanger are the air inlet and outlet, which are connected to the air inlet and the air outlet respectively. The high-efficiency gas condenser of the present invention adopts an open gas inlet and outlet design. The condenser will no longer be limited to the caliber size of the gas inlet and outlet. It can be combined and installed according to the gas transportation conditions of the system by adjusting the number of heat exchange plates and customizing the air inlet and outlet, and can be used for gas cooling sites with different flow rates. The high-efficiency gas condenser has a simple structure and is easy to implement. It can efficiently cool the gas without changing the gas flow rate. Summary of the invention

[0005] In view of the problems existing in the background technology, a nitrogen heating and water removal device is proposed.

[0006] The present invention provides a nitrogen heating and dehydration device, comprising a heating cylinder and a condensation box, wherein the heating cylinder is used to heat the nitrogen, and the condensation box is used to condense and dehydrate the heated gas. The heating cylinder is provided with an air inlet pipe and an air outlet pipe for nitrogen to enter and exit the heating cylinder. A heating element is provided in the heating cylinder, and the heating element is provided in an I-shaped cylindrical shape. The outer wall of the heating element is connected to the inner wall of the heating cylinder. The heating element is made of a heat-conducting material. An electric heating plate is provided on the heating element for heating the heating element. The heating element is provided with a plurality of air guide holes, and the nitrogen entering the heating element is distributed into a plurality of groups by the plurality of air guide holes for separate heating.

[0007] Preferably, the air guide holes are arranged in an irregular serpentine shape to increase the flow time of nitrogen in the heating element.

[0008] Preferably, the heating cylinder is provided with an air intake adjustment assembly for adjusting the amount of nitrogen entering the air guide hole, and is specifically composed of a fixed ring, an adjusting disk, a connecting block, a spring 1, a pull rope, a piston, a spring 2 and an air bag. The fixed ring is installed on the heating element, and the adjusting disk is rotatably installed on the fixed ring. A plurality of ventilation grooves are provided on the adjusting disk, and the inner diameter of the ventilation grooves is the same as the inner diameter of the air guide hole. The connecting block is slidably installed on the fixed ring, and the connecting block is connected to the adjusting disk. The spring 1 is arranged on the fixed ring, and one end of the spring 1 is connected to the connecting block. The piston is slidably installed on the heating cylinder, and the pull rope is arranged in the heating cylinder, and one end of the pull rope is connected to the connecting block, and the other end of the pull rope is connected to the piston, so that during the movement of the piston, the connecting block is pulled by the pull rope to move and then the adjusting disk is driven to rotate. The spring 2 is arranged on the heating cylinder, and one end of the spring 2 is connected to the piston. The air bag is installed on the heating cylinder, and the air bag is connected to the heating cylinder.

[0009] Preferably, during daily use, the adjustment disk half-covers the air guide hole.

[0010] Preferably, after the nitrogen enters the heating cylinder at a normal flow rate, it enters multiple air guide holes evenly under the action of the adjusting disk, so that the air flow entering the air guide holes can be in a slow flow state, avoiding the situation where the nitrogen flow rate in a single air guide hole is too fast. After the nitrogen is delivered to the heating cylinder in excess, the pressure in the heating cylinder increases, pushing the piston to move, and the adjusting disk is rotated by pulling the pull rope to increase the nitrogen flow into the single air guide hole, thereby relieving the pressure in the heating cylinder.

[0011] Preferably, an air flow conducting member is provided in the air guide hole, and the air flow conducting member is composed of an air guide tube and an air guide cone. The air guide tube is installed in the air guide hole, and one side edge of the air guide tube is inclined, and the air guide cone is installed in the air guide tube. The air guide cone and the air guide tube are coaxially arranged for guiding the airflow flowing in the air guide hole, that is, conducting the airflow flowing in the center to both sides, so that the airflow contacts the inner wall of the air guide hole more comprehensively.

[0012] Preferably, a plurality of inclined blades are provided on the inclined inner wall of the air guide cylinder and the conical surface of the air guide cone, so that the airflow passing through the airflow conducting member can be formed into a spiral shape, so that the airflow flowing in the middle and the airflow flowing on both sides can be better mixed.

[0013] Preferably, a preheating cylinder is installed on the heating cylinder, and the preheating cylinder is double-layered, i.e., an inner cylinder and an outer cylinder. An air inlet pipe 1 is installed on the preheating cylinder, and the air inlet pipe 1 is connected to the inner cylinder. A gas delivery pipe 1 is installed on the preheating cylinder, and the gas delivery pipe 1 is connected to an air inlet pipe 2 on the heating cylinder. A gas delivery pipe 2 is installed on the preheating cylinder, and the gas delivery pipe 2 is connected to the outer cylinder. The gas delivery pipe 2 is connected to an air outlet pipe 2 on the heating cylinder. A gas delivery pipe 3 is installed on the preheating cylinder, and the gas delivery pipe 3 is connected to the outer cylinder of the preheating cylinder. The gas delivery pipe 3 is connected to the condensing box. The nitrogen entering the heating cylinder can be preheated through the preheating cylinder.

[0014] Preferably, a return water cylinder is installed on the heating cylinder, a water supply pipe is installed on the return water cylinder, the other end of the water supply pipe is connected to the condensation tank for collecting the condensed water in the condensation tank, a drain pipe 1 is installed on the return water cylinder, and a solenoid valve is provided on the drain pipe 1 for controlling the discharge of water in the return water cylinder.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: In the present invention, the heating of nitrogen is carried out by using a combination of a heating element and a plurality of air guide holes. The nitrogen is transported through the air guide holes, so that the nitrogen can be heated more evenly, thereby improving the heating effect of the nitrogen. By setting an adjustment disk to adjust the nitrogen flow rate entering a single air guide hole, the nitrogen entering the heating cylinder can be distributed more evenly, and too much nitrogen can be prevented from entering a single air guide hole, thereby reducing the flow rate of nitrogen in the air guide hole, so that the nitrogen can be better heated. When the pressure is too high, the piston moves and the adjustment disk is pulled by the pull rope to rotate, so the amount of nitrogen entering a single air guide hole can be adjusted, thereby adapting to different nitrogen flow rates and providing a guarantee for uniform heating of nitrogen. By arranging an air guide cylinder and an air guide cone in the air guide hole, the nitrogen flowing in the middle of the air guide hole can be guided to the side of the air guide hole, and under the action of multiple inclined blades, the nitrogen flowing in the middle is mixed with the nitrogen flowing on the side, thereby heating the nitrogen more evenly and improving the comprehensiveness of the heating of the nitrogen; By setting up a preheating cylinder, the heat in the heated nitrogen and the separated water vapor can be transferred to the unheated nitrogen, and the nitrogen before entering the heating cylinder can be preheated. In this way, the residual heat after the nitrogen is heated can be effectively utilized, and the pressure of the subsequent condenser on the condensation of water vapor can be reduced. At the same time, after the nitrogen is preheated, the loss of nitrogen heating by the subsequent heating element can also be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a structural schematic diagram of the present invention; Figure 2 Another structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the structure of the heating tube in the present invention; Figure 4 It is a schematic cross-sectional structural diagram of the heating cylinder in the present invention; Figure 5 It is a schematic diagram of the structure of the heating element in the present invention; Figure 6 It is a schematic cross-sectional structural diagram of the heating element in the present invention; Figure 7 It is a schematic diagram of the structure of the gas guide cylinder and the gas guide cone in the present invention; Figure 8 It is a structural schematic diagram of the air intake adjustment component in the present invention; Fig. 9 It is a structural schematic diagram of the preheating cylinder in the present invention.

[0017] Figure numerals: 1. heating cylinder; 2. condensing box; 3. preheating cylinder; 4. water return cylinder; 5. water pipe; 6. drainage pipe 1; 7. air inlet pipe 1; 8. air pipe 1; 9. air pipe 2; 10. air pipe 3; 11. heating element; 12. electric heating plate; 13. air guide hole; 14. fixing ring; 15. adjusting plate; 16. connecting block; 17. spring 1; 18. pull rope; 19. piston; 20. spring 2; 21. air bag; 22. air guide cylinder; 23. air guide cone. DETAILED DESCRIPTION

[0018] like Figure 1-Figure 9As shown, a nitrogen heating and dehydration device proposed by the present invention comprises: a heating cylinder 1 and a condensation box 2, wherein the heating cylinder 1 is used to heat the nitrogen, and the condensation box 2 is used to condense and dehydrate the heated gas. An outlet pipe 1 is installed on one side of the condensation box 2 for discharging the condensed nitrogen. The condensation box 2 is constructed by the prior art, and a condenser is arranged therein for cooling the space in the entire box, thereby cooling the nitrogen and water vapor entering therein. An inlet pipe 2 and an outlet pipe 2 are arranged on the heating cylinder 1 for nitrogen to enter and exit the heating cylinder 1. A heating element 11 is arranged in the heating cylinder 1, and the heating element 11 is arranged in an I-shaped cylindrical shape. The outer wall of the heating element 11 is connected to the inner wall of the heating cylinder 1, and the connection method can be welding. The heating element 11 is made of heat-conducting material, and the specific material can be made of copper and iron. 1 is provided with an electric heating plate 12 for heating the heating element 11. The heating cylinder 1 is provided with a control device for controlling the entire nitrogen heating and dehydration device, as well as monitoring the pressure in the heating cylinder 1 and the water content of the nitrogen. The electric heating plate 12 is constructed by the existing technology, and heats the heating element 11 by converting electrical energy into thermal energy. In actual use, an insulation sleeve can be provided outside the heating cylinder 1 to keep warm. The heating temperature of nitrogen is generally between 130 degrees Celsius and 150 degrees Celsius. The moisture in the nitrogen can be removed between these temperatures. The heating element 11 is provided with a plurality of air guide holes 13. The nitrogen entering the heating element 11 is distributed into a plurality of groups by the plurality of air guide holes 13 for separate heating. The air guide holes 13 are arranged in a serpentine irregular shape to increase the flow time of the nitrogen in the heating element 11.

[0019] like Figure 4 and Figure 8As shown, the heating cylinder 1 is provided with an air intake adjustment component for adjusting the amount of nitrogen entering the air guide hole 13, which is specifically composed of a fixed ring 14, an adjustment disk 15, a connecting block 16, a spring 17, a pull rope 18, a piston 19, a spring 20 and an air bag 21. The fixed ring 14 is installed on the heating element 11, and the adjustment disk 15 is rotatably installed on the fixed ring 14. A plurality of ventilation grooves are provided on the adjusting disk 15, and the inner diameter of the ventilation grooves is the same as the inner diameter of the air guide hole 13. The connecting block 16 is slidably installed on the fixed ring 14, and the connecting block 16 is connected to the adjusting disk 15. The spring 17 is arranged on the fixed ring 14, and one end of the spring 17 is connected to the connecting block 16. The piston 19 is slidably installed on the heating cylinder 1, and the pull rope 18 is arranged in the heating cylinder 1, and one end of the pull rope 18 is connected to the connecting block 16, and the other end of the pull rope 18 is connected to the piston 19, so that the piston 19 During the movement, the connecting block 16 is pulled by the pull rope 18 to move and then drive the adjusting disk 15 to rotate. The spring 20 is arranged on the heating tube 1, and one end of the spring 20 is connected to the piston 19. The air bag 21 is installed on the heating tube 1, and the air bag 21 is connected to the heating tube 1. During daily use, the adjusting disk 15 half-shiels the air guide hole 13. After the nitrogen enters the heating tube 1 at a normal flow rate, it enters multiple air guide holes 13 evenly under the action of the adjusting disk 15, so that the air flow entering the air guide hole 13 can be in a slow flow state, avoiding the situation where the nitrogen flow rate in a single air guide hole 13 is too fast. After the nitrogen is delivered to the heating tube 1 in excess, the pressure in the heating tube 1 increases, pushing the piston 19 to move, and the adjusting disk 15 is pulled by the pull rope 18 to rotate, thereby increasing the nitrogen flow entering the single air guide hole 13 and relieving the pressure in the heating tube 1.

[0020] like Figure 6 and Figure 7 As shown, an air flow conducting member is arranged in the air guide hole 13, and the air flow conducting member is composed of an air guide tube 22 and an air guide cone 23. The air guide tube 22 is installed in the air guide hole 13, and one side edge of the air guide tube 22 is inclined. The air guide cone 23 is installed in the air guide tube 22, and the air guide cone 23 is coaxially arranged with the air guide tube 22, and is used for guiding the air flow flowing in the air guide hole 13, that is, conducting the air flow located in the center to both sides, so that the air flow is in full contact with the inner wall of the air guide hole 13. A plurality of inclined blades are arranged on the inclined inner wall of the air guide tube 22 and the conical surface of the air guide cone 23, so that the air flow passing through the air flow conducting member can be formed into a spiral shape, so that the air flow flowing in the middle and the air flow flowing on both sides can be better mixed.

[0021] like Figure 2 and Fig. 9As shown, a preheating cylinder 3 is installed on the heating cylinder 1. The preheating cylinder 3 is double-layered, i.e., an inner cylinder and an outer cylinder. The inner cylinder is made of heat-conducting material. An air inlet pipe 1 7 is installed on the preheating cylinder 3. The air inlet pipe 1 7 is connected to the inner cylinder. A gas delivery pipe 1 8 is installed on the preheating cylinder 3. The gas delivery pipe 1 8 is connected to the air inlet pipe 2 on the heating cylinder 1. A gas delivery pipe 2 9 is installed on the preheating cylinder 3. The gas delivery pipe 2 9 is connected to the outer cylinder. The gas delivery pipe 2 9 is connected to the gas outlet pipe 2 on the heating cylinder 1. A gas delivery pipe 3 10 is installed on the preheating cylinder 3. The gas delivery pipe 3 10 is connected to the outer cylinder of the preheating cylinder 3. The gas delivery pipe 3 10 is connected to the condensation box 2. The nitrogen entering the heating cylinder 1 can be preheated through the preheating cylinder 3. A drain pipe 2 is also installed on the preheating cylinder 3. The drain pipe 2 is provided with a solenoid valve for controlling the discharge of condensed water flow in the outer cylinder of the preheating cylinder 3.

[0022] like Figure 2 As shown, a return water cylinder 4 is installed on the heating cylinder 1, and a water pipe 5 is installed on the return water cylinder 4. The other end of the water pipe 5 is connected to the condensation tank 2 for collecting the condensed water in the condensation tank 2. A drain pipe 6 is installed on the return water cylinder 4, and a solenoid valve is provided on the drain pipe 6 for controlling the discharge of the water in the return water cylinder 4.

[0023] In this embodiment, when in use, nitrogen is input into the heating cylinder 1 through the air inlet pipe on the heating cylinder 1, and the heating element 11 is heated by the electric heating plate 12 at the same time. After the nitrogen enters the heating cylinder 1, it flows into the air guide hole 13 on the heating element 11, and the nitrogen in the air guide hole 13 is heated by the heating element 11. The serpentine air guide hole 13 can prolong the heating time of the nitrogen, thereby improving the heating effect of the nitrogen. The moisture in the heated nitrogen will form water vapor, and the nitrogen and water vapor will flow into the preheating cylinder 3 together. At this time, the unheated nitrogen from the outside flows in the inner cylinder of the preheating cylinder 3, while the nitrogen and water vapor flow in the outer cylinder of the preheating cylinder 3, and pass through the inner cylinder. Through heat conduction, the heat carried by the water vapor can be transferred to the unheated nitrogen to preheat the nitrogen, thereby effectively utilizing the waste heat of nitrogen heating to avoid wasting heat resources, and the preheated nitrogen reduces the heating loss of the electric heating plate 12 to the heating element 11 during the subsequent heating process. The nitrogen and water vapor flow into the condensation box 2 after passing through the preheating cylinder 3, and the water vapor is condensed by the condensation box 2 to form a water flow. The water flow can be transported to the return water cylinder 4 through the water delivery pipe 5, and then discharged through the drain pipe 6, and the nitrogen with the water vapor removed is discharged through the outlet pipe 1 on the condensation box 2, thereby completing the heating and water removal operation of the nitrogen; When nitrogen enters the heating tube 1, at a normal flow rate, the adjustment disk 15 is in a fixed position. When the flow rate is too fast, the pressure in the heating tube 1 increases, which will push the piston 19 to move. The piston 19 pulls the pull rope 18 to drive the connecting block 16 to move, thereby driving the adjustment disk 15 to rotate, increasing the amount of nitrogen in a single air guide hole 13, thereby reducing the pressure in the heating tube 1. When the flow rate returns to normal, under the action of spring 1 17 and spring 2 20, the adjustment disk 15 will be driven to return to its original position, thereby ensuring that nitrogen can enter the air guide hole 13 evenly.

[0024] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A nitrogen heating and water removal device, comprising: The heating cylinder (1) and the condensing box (2), wherein the heating cylinder (1) is used to heat the nitrogen gas, and the condensing box (2) is used to condense and remove water from the heated gas, are characterized in that: The heating cylinder (1) is provided with an air inlet pipe (2) and an air outlet pipe (2) for nitrogen to enter and exit the heating cylinder (1). A heating element (11) is provided inside the heating cylinder (1). The heating element (11) is provided in an I-shaped cylindrical shape. The outer wall of the heating element (11) is connected to the inner wall of the heating cylinder (1). The heating element (11) is made of a heat-conducting material. An electric heating plate (12) is provided on the heating element (11) for heating the heating element (11). The heating element (11) is provided with a plurality of air guide holes (13), and the nitrogen entering the heating element (11) is distributed into a plurality of groups by the plurality of air guide holes (13) for individual heating.

2. The nitrogen heating and water removal device according to claim 1, characterized in that: The air guide holes (13) are arranged in an irregular serpentine shape, and are used to increase the time that the nitrogen flows in the heating element (11).

3. The nitrogen heating and water removal device according to claim 1, characterized in that: The heating cylinder (1) is provided with an air intake adjustment component for adjusting the amount of nitrogen entering the air guide hole (13), and is specifically composed of a fixed ring (14), an adjustment disk (15), a connecting block (16), a spring 1 (17), a pull rope (18), a piston (19), a spring 2 (20) and an air bag (21); A fixed ring (14) is mounted on the heating element (11); an adjusting disk (15) is rotatably mounted on the fixed ring (14); a plurality of ventilation slots are provided on the adjusting disk (15); the inner diameter of the ventilation slots is the same as the inner diameter of the air guide hole (13); a connecting block (16) is slidably mounted on the fixed ring (14); the connecting block (16) is connected to the adjusting disk (15); a spring (17) is arranged on the fixed ring (14); one end of the spring (17) is connected to the connecting block (16); a piston (19) is slidably mounted on the heating tube (1); a pull rope (18) is arranged in the heating tube (1); one end of the pull rope (18) is connected to the connecting block (16); and the other end of the pull rope (18) is connected to the piston (19); When the piston (19) moves, the connecting block (16) is pulled by the pull rope (18) to move, thereby driving the adjusting disk (15) to rotate. The second spring (20) is arranged on the heating cylinder (1), and one end of the second spring (20) is connected to the piston (19). The air bag (21) is installed on the heating cylinder (1), and the air bag (21) is connected to the heating cylinder (1).

4. The nitrogen heating and water removal device according to claim 3 is characterized in that: During daily use, the adjustment disk (15) half covers the air guide hole (13).

5. The nitrogen heating and water removal device according to claim 4, characterized in that: After the nitrogen enters the heating tube (1) at a normal flow rate, it enters the plurality of air guide holes (13) uniformly under the action of the regulating disk (15), so that the air flow entering the air guide hole (13) can be kept in a slow flow state, thereby avoiding the situation where the nitrogen flow rate in a single air guide hole (13) is too fast. After the nitrogen is delivered to the heating tube (1) in excess, the pressure in the heating tube (1) increases, pushing the piston (19) to move, and pulling the regulating disk (15) to rotate by the pull rope (18), thereby increasing the nitrogen flow entering the single air guide hole (13) and relieving the pressure in the heating tube (1).

6. The nitrogen heating and water removal device according to claim 1, characterized in that: An air flow conducting member is arranged in the air guide hole (13), and the air flow conducting member is composed of an air guide tube (22) and an air guide cone (23). The air guide tube (22) is installed in the air guide hole (13), one side edge of the air guide tube (22) is arranged obliquely, and the air guide cone (23) is installed in the air guide tube (22). The air guide cone (23) and the air guide tube (22) are arranged coaxially, and are used to guide the air flow flowing in the air guide hole (13), that is, to conduct the air flow flowing in the center to both sides, so that the air flow contacts the inner wall of the air guide hole (13) in an all-round manner.

7. The nitrogen heating and water removal device according to claim 6, characterized in that: A plurality of inclined blades are provided on the inclined inner wall of the air guide cylinder (22) and the conical surface of the air guide cone (23), so that the airflow passing through the airflow conducting member can be formed into a spiral shape, so that the airflow flowing in the middle and the airflow flowing on both sides are better mixed.

8. The nitrogen heating and water removal device according to claim 1, characterized in that: A preheating cylinder (3) is mounted on the heating cylinder (1). The preheating cylinder (3) is double-layered, i.e., an inner cylinder and an outer cylinder. An air inlet pipe (7) is mounted on the preheating cylinder (3). The air inlet pipe (7) is connected to the inner cylinder. An air delivery pipe (8) is mounted on the preheating cylinder (3). The air delivery pipe (8) is connected to an air inlet pipe (2) on the heating cylinder (1). An air delivery pipe (9) is mounted on the preheating cylinder (3). The air delivery pipe (9) is connected to the outer cylinder. The air delivery pipe (9) is connected to an air outlet pipe (2) on the heating cylinder (1). An air delivery pipe (10) is mounted on the preheating cylinder (3). The air delivery pipe (10) is connected to the outer cylinder of the preheating cylinder (3). The air delivery pipe (10) is connected to the condenser (2). Nitrogen entering the heating cylinder (1) can be preheated through the preheating cylinder (3).

9. The nitrogen heating and water removal device according to claim 1, characterized in that: A return water cylinder (4) is mounted on the heating cylinder (1), a water delivery pipe (5) is mounted on the return water cylinder (4), the other end of the water delivery pipe (5) is connected to the condensation tank (2) and is used to collect the condensed water in the condensation tank (2), a drainage pipe (6) is mounted on the return water cylinder (4), and a solenoid valve is provided on the drainage pipe (6) and is used to control the discharge of the water in the return water cylinder (4).

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