CN216205130U

CN216205130U - Drying energy-saving heater

Info

Publication number: CN216205130U
Application number: CN202122670334.8U
Authority: CN
Inventors: 朱延伟
Original assignee: XUZHOU SILK FIBER TECHNOLOGY CO LTD
Current assignee: XUZHOU SILK FIBER TECHNOLOGY CO LTD
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-04-05
Anticipated expiration: 2031-11-03

Abstract

The utility model discloses a drying energy-saving heater, which comprises a shell, an electric heating mechanism and a temperature sensor, and is characterized in that an inner air pipe and a heat-conducting medium partition plate are arranged in the shell, the inner air pipe is arranged on the heat-conducting medium partition plate, a heat-conducting medium inlet and a heat-conducting medium outlet are arranged on the shell, and the inlet and the outlet of the electric heating mechanism and the heat-conducting medium are controlled by a control panel; a temperature control meter is also arranged on the temperature sensor; a heat-conducting medium inlet control valve is arranged below the heat-conducting medium inlet. The technical scheme adopted by the utility model ensures that the drying and heating of the heater can not only run for a long time in an energy-saving way, but also run normally without stopping when the boiler is stopped due to faults, thereby ensuring the integral energy-saving effect of stable running.

Description

Drying energy-saving heater

Technical Field

The utility model relates to a heater, in particular to a drying energy-saving heater.

Background

The dryer is one of the most important core devices for chemical fiber spinning. The purpose of the dryer is mainly to ventilate and heat the spinning raw material slices, hot air is used for heating the spinning raw materials to achieve the drying effect, and the condition of the final drying effect directly influences the state of spinning production. The heater in the existing dryer mostly adopts simple electric heating or simple heat-conducting medium heating. The electric heating energy consumption is higher, and the heat conducting medium heating is realized by utilizing the existing boiler in the production area to provide heat energy, so that the energy consumption is greatly reduced compared with the electric heating energy consumption. However, although the heating of the heat-conducting medium is energy-saving, when the boiler in the production area is in a fault shutdown state, the dryer does not have a heating source, so that the spinning is stopped, and greater economic loss is caused.

Patent CN203561163U discloses an improved chemical fiber drying device, when in use, the chemical fiber conveyor belt can be driven by a driving motor, and the rotating speed of the chemical fiber conveyor belt can be reasonably controlled according to the temperature in the drying chamber, so that the chemical fiber conveyor belt and the drying device can keep synchronous action, but only can be dried by blowing air by the driving motor, and heating and drying in multiple heating modes cannot be realized.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide a drying energy-saving heater which can perform heating and drying by adopting two modes of electric heating and heat-conducting medium heating.

The technical scheme is as follows: the utility model relates to a drying energy-saving heater, which comprises a shell, an electric heating mechanism and a temperature sensor, wherein an inner air pipe and a heat-conducting medium partition plate are arranged in the shell, the inner air pipe is arranged on the heat-conducting medium partition plate, a heat-conducting medium inlet and a heat-conducting medium outlet are arranged on the shell, and the inlet and the outlet of the electric heating mechanism and the heat-conducting medium are controlled by a control panel. The inner air pipe can be communicated with the inside of the shell, and the heat-conducting medium enters through the heat-conducting medium inlet and is filled between the inner air pipe and the heat-conducting medium partition plate to play a role in heating the cold air.

Preferably, the temperature sensor is further provided with a temperature control meter, and the temperature control meter can display the temperature by using the temperature sensor.

Preferably, an electric heating wire is arranged on the electric heating mechanism.

Preferably, the number of the inner trachea is 3. A certain space is left between the inner air pipe and the heat-conducting medium clapboard for the heat-conducting medium to flow.

Preferably, a heat-conducting medium inlet control valve is arranged below the heat-conducting medium inlet, and the heat-conducting medium inlet control valve can control the feeding amount of the heat-conducting medium.

Has the advantages that: compared with the prior art, the utility model has the following advantages: the electric heating and heat-conducting medium heating modes can be adopted for heating and drying, so that the drying and heating can be operated in an energy-saving mode for a long time, and the drying heater can still normally operate and not stop when the boiler is stopped due to faults, and the integral energy-saving effect of stable operation is ensured.

Drawings

FIG. 1 is a schematic side view of a drying economizer;

fig. 2 is a schematic front structural view of the drying economizer.

Detailed Description

The technical scheme of the utility model is further explained by combining the attached drawings.

As shown in fig. 1 and 2, the drying energy-saving heater comprises a housing 1, an electric heating mechanism 2, an inner gas pipe 3, a heat-conducting medium partition plate 4, a heat-conducting medium outlet 5, a heat-conducting medium inlet 6, a heat-conducting medium inlet control valve 7, a temperature sensor 8, a temperature control meter 9 and a control line 10.

The first heating method of the heat-conducting medium is as follows: the heat conducting oil produced by the boiler is used for heating. The heat conducting oil flows out through the heat conducting medium inlet 6 and then through the heat conducting medium outlet 5, so that the cold air in the inner air pipe 3 exchanges heat through the heat conducting oil, and the cold air in the inner air pipe 3 is changed into hot air to be supplied to the next working procedure for use. Wherein, in order to prevent the heat conducting oil from entering the inner air pipe 3, the heat conducting medium baffle plates 4 are added around the inner air pipe 3, so that the inner air pipe 3 is completely isolated from the outside. Because the cold air needs the heat transfer to the technology settlement temperature after the heat transfer of inner trachea 3, add temperature sensor 8 outside the export of inner trachea 3 and carry out actual measurement temperature. The process temperature is set on the temperature control meter 9, when the actually measured temperature of the temperature sensor 8 is higher than the process set temperature on the temperature control meter 9, the temperature control meter 9 gradually reduces the opening of the heat-conducting medium inlet control valve 7 through the control line 10, reduces the heat exchange amount of the heat-conducting oil to the inner air pipe 3, and gradually reduces the actually measured temperature of the temperature sensor 8 to the process set value on the temperature control meter 9. When the actually measured temperature of the temperature sensor 8 is lower than the process set temperature on the temperature control meter 9, the temperature control meter 9 gradually increases the opening of the heat-conducting medium inlet control valve 7 through the control line 10, increases the heat exchange amount of the heat-conducting oil to the inner gas pipe 3, and gradually increases the actually measured temperature of the temperature sensor 8 to the process set value of the temperature control meter 9.

The second electric heating mode 2 is as follows: when the inner air pipe 3 is heated without heat transfer oil, the cold air enters the electric heating mechanism 2 through the inner air pipe 3, and the electric heating mechanism 2 heats the cold air. Because the cold air needs to be heated to the process set temperature after passing through the electric heating mechanism 2, the temperature sensor 8 is added at the outlet of the electric heating mechanism 2 to measure the temperature actually. The process temperature is set on the temperature control meter 9, when the temperature actually measured by the temperature sensor 8 is higher than the process set temperature on the temperature control meter 9, the heating output current of the electric heating mechanism 2 is gradually reduced after the temperature control meter 9 passes through the control line 10 below, the heating power of the electric heating mechanism 2 is reduced, and the actually measured temperature of the temperature sensor 8 is gradually reduced to the process set value on the temperature control meter 9. When the actually measured temperature of the temperature sensor 8 is lower than the process set temperature of the temperature control meter 9, the temperature control meter 9 passes through the control line 10, the heating output current of the electric heating mechanism 2 is gradually increased, the heating power of the electric heating mechanism 2 is increased, and the actually measured temperature of the temperature sensor 8 is gradually increased to the process set value of the temperature control meter 9.

During normal production, the drying energy-saving heater adopts the heating principle of the first inner air pipe 3, the heating does not need power-consuming heating, and heat conduction oil produced by a boiler is adopted for heat exchange, so that the aims of greatly saving energy and reducing consumption are fulfilled. When the boiler breaks down, no heat conducting oil enters the inner air pipe 3 for heat exchange, the actually measured temperature of the temperature sensor 8 below the boiler is gradually reduced to the process set temperature on the temperature control meter 9, the electric heating mechanism 2 gradually increases the heating power, and the electric heating mechanism 2 is adopted for heating. After the boiler is repaired and heat conducting oil is introduced, two kinds of heating of the first inner gas pipe 3 and the second electric heating mechanism 2 are carried out synchronously, the temperature is increased, the actually measured temperature of the temperature sensor 8 is gradually higher than the process set temperature on the temperature control meter 9, the heating output current of the electric heating mechanism 2 is gradually reduced, the heating power of the electric heating mechanism 2 is reduced and gradually reduced to 0, and the purpose of automatic switching is achieved. The two types of heating can be automatically switched, so that the drying energy-saving heater can run in an energy-saving mode for a long time, and when the boiler is in fault shutdown, the heating of the drying energy-saving heater is switched to the electric heating mechanism 2 through the inner air pipe 3, the long-term running is kept, the shutdown is avoided, and the integral energy-saving effect of stable running is guaranteed.

Claims

1. The utility model provides a dry energy-conserving heater, includes casing (1), electric heating mechanism (2) and temperature sensor (8), its characterized in that is equipped with interior trachea (3) and heat-conducting medium baffle (4) in casing (1), and interior trachea (3) set up on heat-conducting medium baffle (4), and heat-conducting medium import (6) and heat-conducting medium export (5) are established on casing (1), and the business turn over of electric heating mechanism (2) and heat-conducting medium is controlled by control panel.

2. The drying energy-saving heater according to claim 1, characterized in that the temperature sensor (8) is provided with a temperature control meter (9), and the temperature control meter (9) is connected with a control line (10).

3. The drying energy-saving heater according to claim 1, characterized in that the electric heating mechanism (2) is provided with an electric heating wire.

4. Drying economizer heater according to claim 1, characterized in that the number of inner gas tubes (3) is 3.

5. The drying and energy saving heater according to claim 1, characterized in that a heat transfer medium inlet control valve (7) is arranged below the heat transfer medium inlet (6).