Carton drying room
By introducing a condensate return pipe and heat exchange pipe system into the carton drying room, combined with sensor and controller adjustments, the problems of excessive steam consumption and condensate heat waste were solved, energy saving and consumption reduction, stable control of temperature and humidity were achieved, and production efficiency was improved.
Patent Information
- Application Number
- CN202421518172.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-30
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-06-30
AI Technical Summary
The existing carton drying room consumes too much steam during the production process, the temperature fluctuates greatly, and the heat of the condensed water is not fully utilized, resulting in high production costs and low efficiency.
The first heat exchange tube and the second heat exchange tube are combined with the condensed water return pipe to use the condensed water to heat the drying room. The temperature and humidity are adjusted by the temperature and humidity sensor and controller in conjunction with the steam generator and dehumidifier to reduce steam usage and make full use of the heat of the condensed water.
It reduces steam usage, saves operating costs, improves production efficiency, fully utilizes the heat of condensed water, and stabilizes the temperature and humidity control of the drying room.
Smart Images
Figure CN223332027U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of drying rooms, and in particular relates to a carton drying room. Background Art
[0002] The moisture content of a carton refers to the amount of water contained in the paperboard inside. The moisture content directly impacts the quality and performance of the carton. If the moisture content is too low, the paper will be brittle, prone to cracking, and have poor folding resistance. If the moisture content is too high, the paperboard will easily curl. Therefore, controlling the moisture content of the carton is crucial to ensuring its quality. To better control the moisture content of the carton, carton manufacturers have built carton drying rooms, which can use steam heating to increase the drying room temperature. Current steam-heated carton drying rooms suffer from excessive steam consumption and large temperature fluctuations during the carton production process.
[0003] Cardboard production lines use a large amount of high-temperature steam during production. The high-temperature steam will turn into condensed water and be discharged during use. The temperature of the generated condensed water can reach above 80°C. Currently, cardboard production companies do not utilize the heat of the condensed water generated by the cardboard production line, resulting in a large amount of heat loss and reducing the company's production efficiency. Summary of the Invention
[0004] The utility model aims to provide a carton drying room to overcome the problems of excessive steam consumption and large temperature fluctuations in the carton production process in the carton drying room using steam heating in the prior art, as well as the problem that the heat of the condensed water generated by the cardboard production line cannot be fully utilized.
[0005] The utility model is implemented by adopting the following technical scheme: a carton drying room, comprising a drying room body, wherein a first heat exchange tube and a second heat exchange tube are installed in the drying room body, the inlet of the first heat exchange tube is connected to the steam generator, and the inlet of the second heat exchange tube is connected to the condensate return pipe.
[0006] Furthermore, a condensate storage tank is provided outside the drying room body, the condensate return pipe is connected to the condensate storage tank, the inlet of the second heat exchange tube is connected to the condensate storage tank through the water inlet pipe and connected to the condensate return pipe through the condensate storage tank, and a water pump is installed on the water inlet pipe.
[0007] Furthermore, a filter screen is installed at the water inlet of the water inlet pipe.
[0008] Furthermore, a top cover is installed on the top of the condensed water storage tank, and a heat insulation layer is provided on the condensed water storage tank.
[0009] Furthermore, a temperature sensor, a humidity sensor and a dehumidifier are installed in the drying room body, and the temperature sensor, humidity sensor, dehumidifier and steam generator are respectively connected to the controller.
[0010] Compared with the prior art, the beneficial effects of the present invention are:
[0011] 1. The utility model installs a first heat exchange tube and a second heat exchange tube in the drying room. The inlet of the second heat exchange tube is connected to the condensed water return pipe, and the condensed water after the high-temperature steam on the cardboard production line is condensed flows into the condensed water return pipe. The condensed water return pipe sends a large amount of condensed water generated by the cardboard production line into the condensed water storage tank for transfer. Finally, the condensed water in the condensed water storage tank is transported to the second heat exchange tube through the water pump on the water inlet pipe. Since the temperature of the condensed water flowing out of the cardboard production line is basically above 80°C, the condensed water will heat the drying room when it flows through the second heat exchange tube. When the temperature in the drying room can be raised to the required temperature through the first heat exchange tube, we do not need to start the steam generator connected to the first heat exchange tube. When the temperature in the drying room does not reach the required temperature after the second heat exchange tube heats the drying room, we can start the steam generator appropriately. The high-temperature steam generated by the steam generator passes through the first heat exchange tube and heats the drying room, further raising the temperature in the drying room. In this way, during the operation of the drying room, not only the use of steam is greatly reduced, saving the operating costs of the steam generator, but also the heat of the condensed water generated by the cardboard production line is fully utilized, reducing the production costs of the enterprise and improving production efficiency.
[0012] 2. The utility model can regulate the temperature and humidity in the drying room by arranging a temperature sensor, a humidity sensor and a dehumidifier in the drying room, and connecting the temperature sensor, humidity sensor, dehumidifier and steam generator to a controller respectively. The temperature sensor can sense the temperature in the drying room and transmit the temperature information to the controller. When the temperature in the drying room is lower than the set value, the controller can control the steam generator to start and supply high-temperature steam to the first heat exchange pipe after receiving the temperature information, or the controller can control the steam generator to adjust the amount of steam entering the first heat exchange pipe. The controller can adjust the amount of steam supplied by the steam generator to the first heat exchange pipe according to the temperature in the drying room; the humidity sensor can sense the humidity in the drying room and transmit the humidity information to the controller. When the humidity in the drying room exceeds the set value, the controller can control the dehumidifier to work until the humidity in the drying room is lower than a certain value. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the present utility model.
[0014] In the figure: 1. Drying room body; 2. First heat exchange tube; 3. Second heat exchange tube; 4. Steam generator; 5. Condensate return pipe; 6. Condensate storage tank; 7. Water inlet pipe; 8. Water pump; 9. Top cover; 10. Temperature sensor; 11. Humidity sensor; 12. Dehumidifier. DETAILED DESCRIPTION
[0015] In order to help those skilled in the art better understand the technical solutions of the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.
[0016] A carton drying room includes a drying room body 1, in which a first heat exchange tube 2 and a second heat exchange tube 3 are installed. The inlet of the first heat exchange tube 2 is connected to a steam generator 4, and the inlet of the second heat exchange tube 3 is connected to a condensate return pipe 5.
[0017] The carton drying room described in the present invention is used to dry folded cartons. Compared with the carton drying room in the prior art which has only one heat source, the steam generator 4, the present invention can respectively connect the two heat sources, the steam generator 4 and the condensate return pipe 5, by setting a first heat exchange tube 2 and a second heat exchange tube 3. The condensate return pipe 5 is connected to the cardboard production line. The condensate after the high-temperature steam on the cardboard production line is condensed flows into the condensate return pipe 5. The condensate return pipe 5 sends the large amount of condensate generated by the cardboard production line into the condensate storage tank 6 for transfer. Finally, the condensate in the condensate storage tank 6 is transported to the second heat exchange pipe 3 through the water pump 8 on the water inlet pipe 7. Since the temperature of the condensate flowing out of the cardboard production line is basically above 80°C, the condensate will heat the drying room when it flows through the second heat exchange pipe 3. When the second heat exchange pipe 3 can raise the temperature in the drying room to the required temperature, we The steam generator 4 connected to the first heat exchange tube 2 can be kept closed. When the temperature in the drying room does not reach the required temperature after the second heat exchange tube 3 heats the drying room, the steam generator 4 can be properly opened. The high-temperature steam generated by the steam generator 4 passes through the first heat exchange tube 2 and heats the drying room, further increasing the temperature in the drying room. In this way, during the operation of the drying room, not only the steam usage is greatly reduced, saving the operating cost of the steam generator 4, but also the heat of the condensed water generated by the cardboard production line is fully utilized, thereby reducing the production cost of the enterprise and improving the production efficiency.
[0018] A condensed water storage tank 6 is provided outside the drying room body 1, the condensed water return pipe 5 is connected to the condensed water storage tank 6, the inlet of the second heat exchange tube 3 is connected to the condensed water storage tank 6 through the water inlet pipe 7 and is connected to the condensed water return pipe 5 through the condensed water storage tank 6, and a water pump 8 is installed on the water inlet pipe 7.
[0019] The condensed water storage tank 6 of the present invention can temporarily store and transfer the condensed water flowing out of the condensed water return pipe 5, and transport the condensed water in the condensed water storage tank 6 to the second heat exchange pipe 3 through the water pump 8.
[0020] A filter is installed at the water inlet of the water inlet pipe 7.
[0021] The utility model installs a filter screen at the water inlet of the water inlet pipe 7 to filter the condensed water entering the second heat exchange tube 3, thereby preventing the second heat exchange tube 3 from being blocked during long-term use.
[0022] A top cover 9 is installed on the top of the condensed water storage tank 6, and a heat insulation layer is provided on the condensed water storage tank 6.
[0023] The utility model can effectively prevent the heat loss of the condensed water in the condensed water storage tank 6 by providing the top cover 9 and the heat insulation layer.
[0024] A temperature sensor 10, a humidity sensor 11 and a dehumidifier 12 are installed in the drying room body 1. The temperature sensor 10, the humidity sensor 11, the dehumidifier 12 and the steam generator 4 are connected to a controller respectively.
[0025] The utility model can regulate the temperature and humidity in the drying room by arranging a temperature sensor 10, a humidity sensor 11 and a dehumidifier 12 in the drying room, and connecting the temperature sensor 10, the humidity sensor 11, the dehumidifier 12 and the steam generator 4 to a controller respectively. The temperature sensor 10 can sense the temperature in the drying room and transmit the temperature information to the controller. When the temperature in the drying room is lower than the set value, the controller can control the steam generator 4 to start and deliver high-temperature steam to the first heat exchange tube 2 after receiving the temperature information, or the controller can control the steam generator 4 to adjust the amount of steam entering the first heat exchange tube 2. The controller can adjust the amount of steam delivered by the steam generator 4 to the first heat exchange tube 2 according to the temperature in the drying room; the humidity sensor 11 can sense the humidity in the drying room and transmit the humidity information to the controller. When the humidity in the drying room exceeds the set value, the controller can control the dehumidifier 12 to work until the humidity in the drying room is lower than a certain value.
Claims
1. A carton drying room, comprising a drying room body (1), characterized in that: A first heat exchange tube (2) and a second heat exchange tube (3) are installed in the drying room body (1); the inlet of the first heat exchange tube (2) is connected to the steam generator (4); the inlet of the second heat exchange tube (3) is connected to the condensed water return pipe (5); a condensed water storage tank (6) is provided outside the drying room body (1); the condensed water return pipe (5) is connected to the condensed water storage tank (6); the inlet of the second heat exchange tube (3) is connected to the condensed water storage tank (6) through an inlet pipe (7) and is connected to the condensed water return pipe (5) through the condensed water storage tank (6); a water pump (8) is installed on the inlet pipe (7); a top cover (9) is installed on the top of the condensed water storage tank (6); and a heat insulation layer is provided on the condensed water storage tank (6); the condensed water after condensation of high-temperature steam on the paperboard production line flows into the condensed water return pipe (5).
2. The carton drying room according to claim 1, characterized in that: A filter screen is installed at the water inlet of the water inlet pipe (7).
3. The carton drying room according to claim 1, characterized in that: A temperature sensor (10), a humidity sensor (11) and a dehumidifier (12) are installed in the drying room body (1), and the temperature sensor (10), the humidity sensor (11), the dehumidifier (12) and the steam generator (4) are respectively connected to a controller.