Heat transfer helical blade with internal steam supply
By designing ventilation slots and sealing plate structures on the spiral blades, combined with flow valves and detection devices, the problem of uneven heat transfer of the spiral blades was solved, achieving uniform heating of materials and efficient energy utilization, and reducing production costs.
Patent Information
- Application Number
- CN202520014193.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-04
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-01-04
AI Technical Summary
The existing spiral blade heat transfer method is simple and direct, but the heat distribution is uneven, resulting in incomplete drying of materials, affecting product quality and increasing energy consumption.
Design a heat transfer spiral blade with internal steam supply. By setting a venting groove and spiral blade body on the central shaft, the steam transfers heat evenly along the rotation path of the spiral blade. The steam flow rate is controlled by a sealing plate and a flow valve, and precise regulation is achieved by combining temperature and humidity detection devices.
It achieves uniform heating of all parts of the material, improves heating efficiency, reduces energy waste, lowers production costs, and extends equipment lifespan.
Smart Images
Figure CN223636578U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to spiral blade technical field, concretely relates to a heat transfer spiral blade of internal steam supply. BACKGROUND
[0002] Spiral blade device is widely used in the conveying and processing of materials. Some materials need to be heated and dried during the conveying process, but the existing spiral blade often cannot realize efficient heat transfer, resulting in incomplete drying of the materials and waste of energy.
[0003] The traditional spiral blade heat transfer method is usually simple and direct, and the heat distribution is uneven, which makes it difficult to ensure that all parts of the material can be fully and uniformly heated. This not only greatly reduces the drying effect of the material and affects the product quality, but also consumes more energy to achieve the expected drying degree due to the low heat transfer efficiency, increasing the production cost. SUMMARY
[0004] In view of the problem that the heat transfer method in the prior art is usually simple and direct, the heat distribution is uneven, and it is difficult to ensure that all parts of the material can be fully and uniformly heated, the utility model provides a heat transfer spiral blade with internal steam supply.
[0005] In order to solve the above technical problems, the utility model solves the problems through the following technical schemes:
[0006] A heat transfer spiral blade with internal steam supply, comprising a central shaft and a spiral blade body arranged along the side wall of the central shaft, a gas passage groove consistent with the rotation path of the spiral blade body is formed on the outer side wall of the central shaft, the spiral blade body covers the gas passage groove, an air inlet cavity and an air outlet cavity are respectively arranged at the two ends of the central shaft, an air inlet hole is arranged on the central shaft to communicate the air inlet cavity and the gas passage groove, and an air outlet hole is also arranged on the central shaft to communicate the air outlet cavity and the gas passage groove.
[0007] Steam enters the air inlet cavity through the air inlet pipe, and then enters the gas passage groove through the air inlet hole. Since the gas passage groove is arranged along the rotation path of the spiral blade body, and the spiral blade body covers the gas passage groove, the heat of the steam can be uniformly transferred to the spiral blade body. With the rotation of the spiral blade, the material is in full contact with the heated spiral blade, achieving uniform heating. The heated steam enters the air outlet cavity through the air outlet hole, and finally can be recycled or discharged through the recycling pipe. The special design of the gas passage groove and the spiral blade body ensures that the heat can be uniformly distributed on the entire spiral blade, so that all parts of the material can be fully and uniformly heated, improving the heating effect.
[0008] As preferred, the opening of the air inlet cavity is provided with a first sealing plate, and the first sealing plate is provided with an air inlet pipe for conveying steam into the air inlet cavity, and the air inlet pipe is provided with a flow valve.
[0009] The first sealing plate can seal the opening of the air inlet cavity to prevent steam from leaking out of the opening. Steam enters the air inlet cavity through the air inlet pipe, and the flow valve on the air inlet pipe can adjust the input flow of steam, thereby controlling the amount of steam entering the air slot and achieving precise regulation of heat supply during heat transfer.
[0010] As preferred, the opening of the air outlet cavity is provided with a second sealing plate, and the second sealing plate is provided with a recovery pipe for recovering steam.
[0011] The second sealing plate seals the opening of the air outlet cavity to prevent steam from escaping. After the steam completes heat transfer in the air slot, it enters the air outlet cavity through the air outlet hole and is then recovered through the recovery pipe.
[0012] As preferred, the first sealing plate is provided with a valve core that communicates with the air inlet cavity.
[0013] After work, the air inlet pipe is closed, the valve core is opened, and compressed air or other gas sources are used to blow gas into the air inlet cavity. Since the air inlet cavity is in communication with the air slot and the like, the sweep gas can drive out the residual water vapor. This can effectively prevent the air inlet cavity and related components from being in a humid environment for a long time, reduce rust and corrosion, and prolong the service life of the equipment.
[0014] As preferred, the air outlet cavity is provided with a temperature monitoring device and a humidity detection device.
[0015] The temperature monitoring device and the humidity detection device are installed in the air outlet cavity and can monitor the temperature and humidity of the steam discharged from the air slot into the air outlet cavity in real time. The operator can adjust the flow valve in real time based on the monitored data to change the flow of steam.
[0016] As preferred, the second sealing plate is provided with a drain pipe that communicates with the air outlet cavity, and the drain pipe is provided with a first control valve.
[0017] The drain pipe that communicates with the air outlet cavity is provided on the second sealing plate. When condensate appears in the air outlet cavity or liquid needs to be drained, the first control valve on the drain pipe is opened to allow the liquid to be drained smoothly.
[0018] As preferred, the recovery pipe is provided with a second control valve.
[0019] When liquid needs to be drained, the flow valve and the second control valve are closed, and the first control valve is opened. Compressed air is used to blow the valve core, and the water vapor inside the valve core is drained from the drain pipe. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 This is a schematic diagram of the overall structure of the heat transfer spiral blades in the embodiment;
[0021] Figure 2 This is an exploded view of the central axis and the first sealing plate in the embodiment;
[0022] Figure 3 This is an exploded view of the central axis and the second sealing plate in the embodiment;
[0023] Figure 4 This is a schematic diagram of the central axis in the embodiment.
[0024] The names of the parts referred to by the numbers in the attached diagram are as follows:
[0025] 110. Central shaft; 1101. Vent groove; 1102. Air inlet; 1103. Air outlet; 120. Spiral blade body; 130. Air inlet chamber; 1301. First sealing plate; 1302. Air inlet pipe; 1303. Flow valve; 140. Air outlet chamber; 1401. Second sealing plate; 1402. Recovery pipe; 150. Valve core; 1403. Drain pipe; 1404. First control valve; 1405. Second control valve. Detailed Implementation
[0026] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.
[0027] Example
[0028] like Figures 1-4 As shown, this embodiment discloses a heat transfer spiral blade with internal steam supply, which consists of a central shaft 110, a spiral blade body 120, an air inlet chamber 130, an air outlet chamber 140, and related auxiliary components.
[0029] The central shaft 110 is the core component of the entire device, and the outer side wall is provided with a ventilation groove 1101 consistent with the rotation path of the spiral blade body 120, and the spiral blade body 120 is tightly covered on the ventilation groove 1101. The two ends of the central shaft 110 are respectively provided with an air inlet cavity 130 and an air outlet cavity 140, and the opening of the air inlet cavity 130 is provided with a first sealing plate 1301, and the first sealing plate 1301 is provided with an air inlet pipe 1302 for conveying steam to the air inlet cavity 130, and the air inlet pipe 1302 is provided with a flow valve 1303. The opening of the air outlet cavity 140 is provided with a second sealing plate 1401, and the second sealing plate 1401 is provided with a recovery pipe 1402 for recovering steam. The first sealing plate 1301 is also provided with a valve core 150 in communication with the air inlet cavity 130. The second sealing plate 1401 is provided with a drain pipe 1403 in communication with the air outlet cavity 140, and the drain pipe 1403 is provided with a first control valve 1404, and the recovery pipe 1402 is provided with a second control valve 1405. In addition, the air outlet cavity 140 is provided with a temperature monitoring device and a humidity detection device (not shown in the figure).
[0030] The use principle and process of the internal steam supply heat transfer spiral blade in the embodiment are as follows:
[0031] In use, steam enters the air inlet cavity 130 through the air inlet pipe 1302, and the flow valve 1303 can adjust the input flow of steam according to actual needs. The steam then enters the ventilation groove 1101 through the air inlet hole 1102, and due to the special design of the ventilation groove 1101 and the covering of the spiral blade body 120, the heat of the steam can be uniformly transferred to the spiral blade body 120.
[0032] When the material contacts the heated spiral blade, uniform heating is achieved. The heated steam enters the air outlet cavity 140 through the air outlet hole 1103, and the operator can adjust the flow valve 1303 in real time according to the data monitored by the temperature monitoring device and the humidity detection device in the air outlet cavity 140 to change the steam flow. The steam is recovered through the recovery pipe 1402 to reduce energy consumption.
[0033] After the work is completed, first close the flow valve 1303 and the second control valve 1405, open the first control valve 1404, then open the valve core 150, and blow gas into the air inlet cavity 130 using compressed air or other gas sources to discharge the residual water vapor from the drain pipe 1403.
[0034] The above settings achieve uniform and efficient heat transfer of steam to the spiral blade: the special structural design ensures that the heat is uniformly distributed on the spiral blade, thereby effectively reducing heat loss, improving energy utilization, reducing production cost, the material is heated sufficiently and uniformly, and the heating quality is improved. The setting of the flow valve 1303 can accurately adjust the steam input, and adapt to the needs of different materials and processes.
[0035] The compressed air is introduced into the valve core 150 to blow off the residual water vapor and discharge the accumulated liquid, so as to reduce the corrosion, rust and damage of the equipment and prolong the service life. The temperature and humidity detection device can help to master the steam state in real time and adjust the operation parameters in time.
[0036] In summary, the above is only a preferred embodiment of the present embodiment, and any equivalent changes and modifications made within the scope of the patent application of the present embodiment shall be within the scope of the present embodiment.
Claims
1. A heat transfer helical vane with internal steam supply comprising a central shaft (110) and a helical vane body (120) disposed along the side wall of the central shaft (110), characterized in that: The outer side wall of the central shaft (110) is provided with a ventilation groove (1101) consistent with the rotation path of the spiral blade body (120), the spiral blade body (120) covers the ventilation groove (1101), the central shaft (110) is respectively provided with an air inlet cavity (130) and an air outlet cavity (140) at both ends, the central shaft (110) is provided with an air inlet hole (1102) communicating the air inlet cavity (130) and the ventilation groove (1101), and the central shaft (110) is further provided with an air outlet hole (1103) communicating the air outlet cavity (140) and the ventilation groove (1101).
2. An internally steam-supplied heat transfer helical vane according to claim 1, characterized in that: The opening of the air inlet cavity (130) is provided with a first sealing plate (1301), the first sealing plate (1301) is provided with an air inlet pipe (1302) for conveying steam to the air inlet cavity (130), and the air inlet pipe (1302) is provided with a flow valve (1303).
3. An internally steam-supplied heat transfer helical vane according to claim 2, characterized in that: The opening of the air outlet cavity (140) is provided with a second sealing plate (1401), and the second sealing plate (1401) is provided with a recovery pipe (1402) for recovering steam.
4. An internally steam-supplied heat transfer helical vane according to claim 3, characterized in that: The first sealing plate (1301) is provided with a valve core (150) communicating with the air inlet cavity (130).
5. An internally steam-supplied heat transfer helical vane according to claim 4, characterized in that: The air outlet cavity (140) is provided with a temperature monitoring device and a humidity detection device.
6. An internally steam-supplied heat transfer helical vane according to claim 4, characterized in that: The second sealing plate (1401) is provided with a drain pipe (1403) communicating with the air outlet cavity (140), and the drain pipe (1403) is provided with a first control valve (1404).
7. An internally steam-supplied heat transfer helical vane according to claim 6, characterized in that: The recovery pipe (1402) is provided with a second control valve (1405).