CN210267736U

CN210267736U - Water circulation nitrogen gas preheating device

Info

Publication number: CN210267736U
Application number: CN201920920583.8U
Authority: CN
Inventors: 韩波; 韩磊; 陈瑶瑶
Original assignee: Jiangsu Xinke Industrial Furnace Manufacturing Co Ltd
Current assignee: Jiangsu Xinke Industrial Furnace Manufacturing Co Ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-04-07
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses a hydrologic cycle nitrogen gas preheating device, including preheating cabinet, spiral sleeve pipe, spiral inner tube, water tank, electric heating pipe, temperature sensor and PLC controller, be equipped with spiral sleeve pipe in the preheating cabinet, the intraductal spiral inner tube that is equipped with of spiral sleeve, be equipped with a plurality of agitating unit in the spiral inner tube, spiral inner tube lower extreme is the inlet end, spiral inner tube upper end is the end of giving vent to anger, the water tank has been placed to preheating cabinet one side, the fixed water pump that is equipped with on the water tank, the input of water pump lead to pipe with the water tank is connected, the output of water pump lead to pipe with the spiral sleeve pipe upper end is connected. Has the advantages that: can be through heating the temperature to predetermineeing with the water in the water tank, then use nitrogen gas and water to carry out the STREAMING heat transfer to the temperature after making preheating is very close to predetermined temperature, thereby the temperature after control nitrogen gas preheating that can be accurate.

Description

Water circulation nitrogen gas preheating device

Technical Field

The utility model relates to a nitrogen gas preheats the pivot field, particularly, relates to a hydrologic cycle nitrogen gas preheating device.

Background

In the production process of n-butane, nitrogen is used as protective gas and is a very important raw material, and the nitrogen needs to be heated and preheated before being used so as to reach the specified temperature. The existing air heating device generally adopts a horizontal tank body, an electric heater is arranged in the horizontal tank body, a nitrogen gas inlet pipe is arranged on one side of the tank body, a nitrogen gas outlet pipe is arranged on the other side of the tank body, and nitrogen gas flows through the tank body transversely to exchange heat with the electric heater.

The specific temperature of the heated nitrogen cannot be controlled due to the high ambient temperature of the electric heater, so that the conventional nitrogen preheating device cannot accurately control the temperature of the preheated nitrogen, and cannot realize the function of preheating the nitrogen to the specified temperature.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydrologic cycle nitrogen gas preheating device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a water circulation nitrogen preheating device comprises a preheating box, a spiral sleeve, a spiral inner pipe, a water tank, an electric heating pipe, a temperature sensor and a PLC (programmable logic controller), wherein the spiral sleeve is arranged in the preheating box, the spiral inner pipe is arranged in the spiral sleeve, a plurality of stirring devices are arranged in the spiral inner pipe, the lower end of the spiral inner pipe is an air inlet end, the upper end of the spiral inner pipe is an air outlet end, the water tank is placed on one side of the preheating box, a water pump is fixedly arranged on the water tank, the input end of the water pump is connected with the water tank through a water pipe, the output end of the water pump is connected with the upper end of the spiral sleeve through a water pipe, the lower end of the spiral sleeve is connected with the water tank through a water pipe, the electric heating pipe and the temperature sensor are installed in the water tank, a water filling port is arranged on the, the display screen, the temperature sensor and the electric heating pipe are electrically connected with the PLC.

Further, the spiral sleeve is fixed in the preheating box through a plurality of first connecting rods.

Furthermore, the spiral inner pipe is fixed in the spiral sleeve through a plurality of second connecting rods.

Further, an air pump is fixedly arranged on the outer wall of one side of the preheating box, the output end of the air pump is connected with the air inlet end, and the input end of the air pump is connected with a nitrogen source.

Further, agitating unit includes the fixed column, the fixed column is fixed spiral inner tube inner wall, be equipped with on the fixed column the bearing and with the outer loop fixed connection of bearing, the fixed pivot that is equipped with of bearing inner ring, the fixed a plurality of flabellums that are equipped with of pivot outer wall.

Furthermore, the spiral sleeve, the water pipe and the outer wall of the water tank are all fixedly provided with ceramic fiber heat-insulating cotton.

Furthermore, a visible window is arranged on one side of the water tank.

Further, the material of the spiral inner pipe is copper.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model discloses a set up preheating cabinet, spiral sleeve, spiral inner tube, water tank, electric heating pipe, temperature sensor and PLC controller, can be through with the hydrothermal to predetermined temperature in the water tank, then use nitrogen gas and water to carry out the STREAMING heat transfer to make the temperature after preheating very close predetermined temperature, thereby the temperature after control nitrogen gas that can be accurate preheats.

(2) The utility model discloses a set up the head rod, can be used for fixing the spiral casing inside the preheating cabinet.

(3) The utility model discloses a set up the second connecting rod, can be used for fixing the spiral inner tube at the helical casing inside.

(4) The utility model discloses a set up the air pump, can go into the spiral inner tube with the nitrogen pump in the nitrogen source, provide power for nitrogen gas.

(5) The utility model discloses a set up agitating unit, can make nitrogen gas spiral in the spiral inner tube go forward to make preheating of nitrogen gas more even.

(6) The utility model discloses a set up ceramic fibre heat preservation cotton, can reduce thermal loss to make the temperature after nitrogen gas preheats be close to the temperature of water more, and can reduce the energy consumption.

(7) The utility model discloses a set up visual window, be convenient for observe the water level condition in the water tank, be convenient for in time add water.

(8) The utility model discloses an use the copper product material to make the spiral inner tube, copper can not take place chemical reaction with the nitrogen gas heating to the expert has good heat conductivility, is favorable to the heat transfer of water and nitrogen gas.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a water circulation nitrogen preheating device according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a spiral sleeve and a spiral inner tube in a water circulation nitrogen preheating device according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a spiral sleeve of a water circulating nitrogen preheating device according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a spiral inner pipe in a water circulation nitrogen preheating device according to an embodiment of the present invention.

Reference numerals:

1. a preheating box; 2. a spiral sleeve; 3. a spiral inner tube; 4. an air inlet end; 5. an air outlet end; 6. a water tank; 7. a water pump; 8. a water pipe; 9. an electric heating tube; 10. a temperature sensor; 11. a water filling port; 12. a sealing cover; 13. a PLC controller; 14. a display screen; 15. a first connecting rod; 16. a second connecting rod; 17. an air pump; 18. fixing a column; 19. a bearing; 20. a rotating shaft; 21. a fan blade; 22. ceramic fiber heat insulation cotton; 23. a visual window.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

the first embodiment is as follows:

referring to fig. 1-4, a water circulation nitrogen preheating device according to an embodiment of the present invention includes a preheating tank 1, a spiral casing 2, a spiral inner tube 3, a water tank 6, an electric heating tube 9, a temperature sensor 10 and a PLC controller 13, the preheating tank 1 is provided with the spiral casing 2, the spiral inner tube 3 is provided in the spiral casing 2, the spiral inner tube 3 is provided with a plurality of stirring devices, the lower end of the spiral inner tube 3 is an air inlet 4, the upper end of the spiral inner tube 3 is an air outlet 5, the water tank 6 is disposed on one side of the preheating tank 1, the water tank 6 is fixedly provided with a water pump 7, the input end of the water pump 7 is connected to the water tank 6 through a water pipe 8, the output end of the water pump 7 is connected to the upper end of the spiral casing 2 through a water pipe 8, the lower end of the spiral casing 2 is connected to the water tank 6 through a water pipe 8, the electric heating tube, the water tank 6 is provided with a water filling port 11, the water filling port 11 is connected with a sealing cover 12 in a threaded manner, the outer wall of one side of the preheating tank is fixedly provided with a display screen 14 and a PLC (programmable logic controller) 13, and the display screen 14, the temperature sensor 10 and the electric heating pipe 9 are electrically connected with the PLC 13.

Through the above technical scheme of the utility model, can be through heating the water in the water tank 6 to predetermined temperature, then use nitrogen gas and water to carry out the STREAMING heat transfer to make the temperature after nitrogen gas preheats be close very much to predetermined temperature, thereby the temperature after control nitrogen gas that can be accurate preheats.

Example two:

referring to fig. 1 and 3, for the spiral casing 2, the spiral casing 2 is fixed in the preheating chamber 1 by a plurality of first connecting rods 15; for the spiral inner pipe 3, the spiral inner pipe 3 is fixed in the spiral sleeve 2 through a plurality of second connecting rods 16; for the preheating box 1, an air pump 17 is fixedly arranged on the outer wall of one side of the preheating box 1, the output end of the air pump 17 is connected with the air inlet end 4, and the input end of the air pump 17 is connected with a nitrogen source.

Through the above technical scheme of the utility model, head rod 15 can be used for fixing spiral casing 2 inside preheating cabinet 1, and second connecting rod 16 can be used for fixing spiral inner tube 3 inside spiral casing 2, and air pump 17 can be gone into spiral inner tube 3 with the nitrogen pump in the nitrogen source in, provides power for nitrogen gas.

Example three:

referring to fig. 1, 3 and 4, for the stirring device, the stirring device includes a fixing column 18, the fixing column 18 is fixed on the inner wall of the spiral inner tube 3, a bearing 19 is arranged on the fixing column 18 and is fixedly connected with the outer ring of the bearing 19, a rotating shaft 20 is fixedly arranged on the inner ring of the bearing 19, and a plurality of fan blades 21 are fixedly arranged on the outer wall of the rotating shaft 20; for the spiral casing 2, ceramic fiber heat-insulating cotton 22 is fixedly arranged on the outer walls of the spiral casing 2, the water pipe 8 and the water tank 6; for the water tank 6, a visible window 23 is arranged on one side of the water tank 6; for the spiral inner tube 3, the material of the spiral inner tube 3 is copper.

Through the above technical scheme of the utility model, agitating unit can make nitrogen gas spiral advance in spiral inner tube 3, thereby make preheating of nitrogen gas more even, ceramic fibre keeps warm cotton 22 can reduce thermal loss, thereby make the temperature after nitrogen gas preheats be close to the temperature of water more, and can reduce the energy consumption, visual window 23 is convenient for observe the water level condition in the water tank 6, be convenient for in time add water, copper can not take place chemical reaction with the nitrogen gas heating, and the expert has good heat conductivility, be favorable to the heat transfer of water and nitrogen gas.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

In practical application, firstly, the temperature of the preheated nitrogen is set through the PLC 13, the PLC 13 controls the electric heating pipe 9 to heat the water in the water tank, meanwhile, the temperature sensor 10 can detect the temperature of the water in the water tank 6, when the temperature of the water in the water tank 6 reaches the set temperature, the PLC 13 controls the electric heating pipe 9 to stop heating, then the water pump 7 is started to make the water in the water tank 6 circularly flow between the water tank 6 and the spiral sleeve 2, the spiral sleeve 2 and the spiral inner pipe 3 are preheated, after a few minutes of preheating, the air pump 17 is started to introduce the nitrogen into the spiral inner pipe 3, the directions of the nitrogen and the water flow are opposite, the heat exchange efficiency can be increased, the stirring device can stir the nitrogen under the impact force of the nitrogen, the nitrogen spirally advances in the spiral inner pipe 3, the preheated nitrogen can be close to the water temperature, and the temperature of the preheated nitrogen can be accurately controlled, when the water temperature in the water tank 6 is lower than the set temperature value, the PLC 13 opens the electric heating pipe 9 to continue heating the water in the water tank 6, thereby keeping the water temperature in the water tank 6 fluctuating around the set temperature value, and the PLC 13 can display the water temperature on the display screen 14, which is helpful for the working personnel to know the real-time temperature of the water in the water tank 6, the stirring device can lead the nitrogen to advance spirally in the spiral inner pipe 3, thereby leading the preheating of the nitrogen to be more uniform, reducing the heat loss of the ceramic fiber heat-insulating cotton 22, thereby leading the temperature of the preheated nitrogen to be closer to the temperature of water and reducing energy consumption, leading the visible window 23 to be convenient for observing the water level condition in the water tank 6, the copper-nitrogen heat exchanger is convenient for timely adding water, the copper and the nitrogen are heated without chemical reaction, and the copper-nitrogen heat exchanger has good heat conduction performance and is beneficial to heat exchange of the water and the nitrogen.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The water circulation nitrogen preheating device is characterized by comprising a preheating box (1), a spiral sleeve (2), a spiral inner pipe (3), a water tank (6), an electric heating pipe (9), a temperature sensor (10) and a PLC (programmable logic controller) (13), wherein the spiral sleeve (2) is arranged in the preheating box (1), the spiral inner pipe (3) is arranged in the spiral sleeve (2), a plurality of stirring devices are arranged in the spiral inner pipe (3), the lower end of the spiral inner pipe (3) is an air inlet end (4), the upper end of the spiral inner pipe (3) is an air outlet end (5), the water tank (6) is placed on one side of the preheating box (1), a water pump (7) is fixedly arranged on the water tank (6), the input end of the water pump (7) is connected with the water tank (6) through a water pipe (8), the output end of the water pump (7) is connected with the upper end of the spiral sleeve (2) through the water pipe, spiral casing (2) lower extreme pass through water pipe (8) with water tank (6) are connected, install electric heating pipe (9) and temperature sensor (10) in water tank (6), be equipped with filler (11) on water tank (6), threaded connection has sealed lid (12) on filler (11), preheating cabinet (1) one side outer wall is fixed and is equipped with display screen (14) and PLC controller (13), display screen (14) temperature sensor (10) electric heating pipe (9) all with PLC controller (13) electric connection.

2. A water circulating nitrogen preheating device according to claim 1, characterized in that the spiral casing (2) is fixed in the preheating tank (1) by means of a number of first connecting rods (15).

3. A water circulating nitrogen preheating device according to claim 2, characterized in that the spiral inner pipe (3) is fixed inside the spiral casing (2) by a number of second connecting rods (16).

4. The water circulation nitrogen preheating device according to claim 1, wherein an air pump (17) is fixedly arranged on the outer wall of one side of the preheating tank (1), the output end of the air pump (17) is connected with the air inlet end (4), and the input end of the air pump (17) is connected with a nitrogen source.

5. The water circulation nitrogen preheating device according to claim 3, wherein the stirring device comprises a fixing column (18), the fixing column (18) is fixed on the inner wall of the spiral inner pipe (3), a bearing (19) is arranged on the fixing column (18) and is fixedly connected with an outer ring of the bearing (19), a rotating shaft (20) is fixedly arranged on an inner ring of the bearing (19), and a plurality of fan blades (21) are fixedly arranged on the outer wall of the rotating shaft (20).

6. A water circulation nitrogen preheating device according to claim 5, characterized in that ceramic fiber heat insulation cotton (22) is fixedly arranged on the outer walls of the spiral sleeve (2), the water pipe (8) and the water tank (6).

7. A water circulating nitrogen preheating device according to claim 6, characterized in that a visual window (23) is provided on one side of the water tank (6).

8. A water circulating nitrogen preheating device according to claim 7, characterized in that the material of the spiral inner pipe (3) is copper.