A gradient temperature control conveying device based on vacuum degassing

Abstract

This invention provides a gradient temperature control conveying device based on vacuum degassing, comprising a ton container, a first conveying pipe, a conveying pump, a second conveying pipe, and a degassing tank connected sequentially in process order. It also includes a zoned heating system, comprising a first heating mechanism for heating the second conveying pipe and a second heating mechanism for heating the ton container. A vacuum sensor is installed in the degassing tank. A first temperature sensor and a second temperature sensor are installed in either the first or second conveying pipe. A controller is also included, which is communicatively connected to the vacuum sensor, the conveying pump, the first and second heating mechanisms, and the first and second temperature sensors. Through this structure, the temperature of the material gradually increases before entering the degassing tank, improving material flowability and reducing material viscosity. The temperature is highest in the area near the degassing tank, while the temperature of the ton container and the outlet of the conveying pump remains relatively low, avoiding thermal shock to the mechanical seal from the high-temperature material.

Description

Technical Field

[0001] This utility model relates to the field of vacuum degassing technology, specifically to a gradient temperature control conveying device based on vacuum degassing. Background Technology

[0002] For example, components such as transformers, instrument transformers, reactors, and electromagnetic compatibility coils are commonly vacuum-cast using epoxy resin insulation materials. The quality of the epoxy resin insulation material plays a crucial role in the performance of the vacuum-cast components. Whether the material is completely degassed is an important indicator for evaluating material quality and a significant factor affecting the success of the vacuum casting process. This necessitates the use of a vacuum degassing tank; for instance, Chinese patent document CN215085052U discloses a vacuum degassing tank.

[0003] In use, materials need to be stored in ton containers, and the casting material in the ton containers is transported to the deaeration tank by a transfer pump, where it is then degassed. In traditional solutions, the length of the conveying pipeline between the ton containers and the deaeration tank is usually determined by the plant layout. Considering that the ton containers are usually located in drying rooms to heat the ton containers and the materials inside, while the deaeration tank is often located on an operating platform or high-level support outside the drying room, the actual installation length of the conveying pipeline is generally 6 to 10 meters. Due to natural heat dissipation, the temperature at the ton containers and the transfer pump is higher than that at the deaeration tank, causing a decrease in the fluidity of materials such as epoxy resin when they enter the deaeration tank (the temperature at the deaeration tank is 10-15°C lower than the temperature at the outlet of the transfer pump), and a reduction in bubble release efficiency of more than 30%.

[0004] In theory, the higher the degassing temperature, the lower the viscosity of the epoxy resin, the faster the bubble rise rate, and the better the degassing efficiency and effect. However, some components of the delivery pump are sensitive to temperature. If the material temperature is too high, it will accelerate the aging of the mechanical seals, reduce their service life, and even cause leakage risks. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to propose a gradient temperature control conveying device based on vacuum degassing to solve the problems mentioned in the background section above.

[0006] This utility model is achieved through the following technical solution:

[0007] A gradient temperature-controlled conveying device based on vacuum degassing includes a ton container, a conveying pump, and a degassing tank connected sequentially in process order. The ton container and the conveying pump are connected via a first conveying pipe, and the conveying pump and the degassing tank are connected via a second conveying pipe. The device also includes a zoned heating system, comprising a first heating mechanism and a second heating mechanism. The first heating mechanism heats the second conveying pipe, and the second heating mechanism heats the ton container. A vacuum sensor is installed in the degassing tank. A first temperature sensor is installed at the end of either the first or second conveying pipe near the conveying pump, and a second temperature sensor is installed at the end of the second conveying pipe near the degassing tank. The device also includes a controller, which is communicatively connected to the vacuum sensor, the conveying pump, the first heating mechanism, the second heating mechanism, the first temperature sensor, and the second temperature sensor.

[0008] Furthermore, the first temperature sensor is disposed in the first conveying pipe, the second conveying pipe is provided with a third temperature sensor, the controller is communicatively connected to the third temperature sensor, and the first heating mechanism is used to heat different areas of the second conveying pipe.

[0009] Furthermore, a fourth temperature sensor is provided in the middle region of the second conveying pipe, and the controller is communicatively connected to the fourth temperature sensor.

[0010] Furthermore, the conveying pump is located below the ton container, allowing the material in the ton container to flow to the conveying pump by gravity.

[0011] Furthermore, the first heating mechanism is a heat exchanger, and the second heating mechanism is a drying room.

[0012] The beneficial effects of this utility model are as follows: A gradient temperature control conveying device based on vacuum degassing includes a ton container, a conveying pump, and a degassing tank connected sequentially in process order. The ton container and the conveying pump are connected through a first conveying pipe, and the conveying pump and the degassing tank are connected through a second conveying pipe. It also includes a zoned heating system, which includes a first heating mechanism and a second heating mechanism. The first heating mechanism is used to heat the second conveying pipe, and the second heating mechanism is used to heat the ton container. A vacuum sensor is installed in the degassing tank. One of the first or second conveying pipes has a first temperature sensor at its end near the conveying pump, and the second conveying pipe has a second temperature sensor at its end near the degassing tank. The device also includes a controller, which is communicatively connected to the vacuum sensor, the conveying pump, the first heating mechanism, the second heating mechanism, the first temperature sensor, and the second temperature sensor. Through this structure, the temperature of the material gradually increases before entering the degassing tank, improving material flowability and reducing material viscosity. The temperature is highest in the area near the degassing tank, while the temperature at the outlet of the ton container and the conveying pump remains relatively low, avoiding thermal shock to the mechanical seal from high-temperature materials. Attached Figure Description

[0013] Figure 1 This is a schematic diagram showing the positional relationship of the components of the gradient temperature control conveying device of this utility model.

[0014] The above figures include the following reference numerals:

[0015] 01. Tonnage container; 02. Transfer pump; 03. Degassing tank; 04. First transfer pipeline; 05. Second transfer pipeline; 06. First heating mechanism; 07. Second heating mechanism; 08. First temperature sensor; 09. Second temperature sensor; 10. Third temperature sensor; 11. Fourth temperature sensor. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is intended to aid in understanding this utility model, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0017] Reference Figure 1As shown, a gradient temperature-controlled conveying device based on vacuum degassing includes a ton container 01, a conveying pump 02, and a degassing tank 03 connected sequentially in process order. The ton container 01 and the conveying pump 02 are connected via a first conveying pipe 04, and the conveying pump 02 and the degassing tank 03 are connected via a second conveying pipe 05. The device also includes a zone heating system, comprising a first heating mechanism 06 and a second heating mechanism 07. The first heating mechanism 06 heats the second conveying pipe 05, and the second heating mechanism 07 heats the ton container 01. A vacuum sensor (not shown) is installed in the degassing tank 03. One of the first conveying pipe 04 or the second conveying pipe 05 has a first temperature sensor 08 at its end near the conveying pump 02, and the second conveying pipe 05 has a second temperature sensor 09 at its end near the degassing tank 03. The device also includes a controller (not shown), which is communicatively connected to the vacuum sensor, the conveying pump 02, the first heating mechanism 06, the second heating mechanism 07, the first temperature sensor 08, and the second temperature sensor 09.

[0018] In use, the controller controls the second heating mechanism 07 to heat the material to the temperature set by the first temperature sensor 08, thereby reducing the material viscosity and improving its flowability. Then, the controller starts the conveying pump 02, which transports the material to the degassing tank 03 via the second conveying pipe 05. During this process, the first heating mechanism 06 heats the second conveying pipe 05 to heat the material to the temperature set by the second temperature sensor 09. The material then enters the degassing tank 03 for degassing. The controller reads the vacuum level in the degassing tank 03 through the vacuum sensor. When the vacuum level decreases by a set order of magnitude, the first heating mechanism 06 further heats the second conveying pipe 05, automatically increasing the temperature of the material entering the degassing tank 03, preferably by 2°C to 5°C.

[0019] Through the above structure and control steps, the temperature of the material at the degassing tank 03 is higher than the temperature at the conveying pump 02 or the ton container 01. When the material flows through the second conveying pipe 05, the first heating mechanism 06 heats the second conveying pipe 05, so that the temperature of the material gradually increases before entering the degassing tank 03, thereby improving the material's fluidity and reducing its viscosity. The temperature is highest in the area near the degassing tank 03, while the temperature at the outlet of the ton container 01 and the conveying pump 02 is kept relatively low, thus avoiding the thermal shock of the high-temperature material to the mechanical seal.

[0020] The first temperature sensor 08 is disposed on the first conveying pipe 04, the second conveying pipe 05 is provided with a third temperature sensor 10, the controller is communicatively connected to the third temperature sensor 10, and the first heating mechanism 06 is used to heat different areas of the second conveying pipe 05.

[0021] Specifically, the temperature of the material flowing out of the conveying pump 02 is read by the first temperature sensor 08, and the temperature of the material flowing out of the ton container 01 is read by the second temperature sensor 09. The controller controls the first heating mechanism 06 to heat different areas of the second conveying pipe 05, and the second heating mechanism 07 to heat the ton container 01, so that the material temperatures read by the third temperature sensor 10, the first temperature sensor 08, and the second temperature sensor 09 increase sequentially according to the process direction.

[0022] A fourth temperature sensor 11 is installed in the middle region of the second conveying pipe 05, and the controller is communicatively connected to the fourth temperature sensor 11. The controller controls the first heating mechanism 06 to heat different areas of the second conveying pipe 05, and the second heating mechanism 07 to heat the ton container 01, so that the material temperature read by the third temperature sensor 10, the first temperature sensor 08, the fourth temperature sensor 11, and the second temperature sensor 09 increases sequentially according to the process direction.

[0023] The conveying pump 02 is located below the ton container 01, allowing the material in the ton container 01 to flow to the conveying pump 02 by gravity, thereby reducing energy consumption and saving equipment costs.

[0024] The first heating mechanism 06 is a heat exchanger, and the second heating mechanism 07 is a drying chamber. Both the heat exchanger and the drying chamber are existing technologies and will not be described in detail here.

[0025] The essence of the heat exchanger heating the second conveying pipeline 05 is: through a heat medium (such as heat transfer oil), the heat transfer oil is heated in the high-temperature heat exchanger and then transported to the target area through the pipeline. The inner layer of the second conveying pipeline 05 is equipped with a heat transfer oil heating jacket for circulating heating, and the high-temperature heat transfer oil is preferentially supplied to the area where the second temperature sensor 09 is located.

[0026] Heating the IBC (Imperial Container 01) in the drying room essentially involves placing the entire IBC inside the drying room and using hot air circulation, steam, electric heating, or heat transfer oil to uniformly heat and melt the material inside the IBC.

[0027] As mentioned above, the communication connections between the controller and various components include multiple communication methods such as wired, wireless, Bluetooth, and Wi-Fi.

[0028] This utility model discloses a gradient temperature control conveying device based on vacuum degassing, which innovatively adopts "reverse gradient temperature control + vacuum dynamic compensation technology", and has the following advantages compared with the prior art:

[0029] Firstly, the material rises in a gradient according to the process direction, passing through the degassing tank 03 (highest temperature) → second conveying pipeline 05 → conveying pump 02 → ton barrel 01 with a decreasing temperature gradient (temperature difference 5-20℃), so that the viscosity of the material such as epoxy resin is the lowest during degassing (which can be reduced by 15-30% compared to the traditional solution), and the bubble rising speed is increased by 2 times.

[0030] Secondly, as the vacuum material temperature continues to rise, the controller controls the first heating mechanism 06 to heat the second temperature sensor 09 in the second conveying pipe 05, further improving the degassing efficiency and effect.

[0031] Thirdly, through temperature gradient design, for example, when the temperature of the material in the degassing tank 03 is 80℃, the overall energy consumption of this utility model is reduced by 40%;

[0032] Fourthly, the temperature of the delivery pump 02 is controlled below 60℃ (compared to 80℃ in traditional solutions), extending the mechanical seal life by 3 times.

[0033] Fifthly, when the material is epoxy resin, multi-point temperature monitoring is used to avoid continuous high temperatures in local high-temperature areas, which could lead to prepolymerization of the epoxy resin and prevent a rapid increase in the acid value of the epoxy resin.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gradient temperature-controlled conveying device based on vacuum degassing, comprising a ton container (01), a conveying pump (02), and a degassing tank (03) connected sequentially in process order, wherein the ton container (01) and the conveying pump (02) are connected via a first conveying pipe (04), and the conveying pump (02) and the degassing tank (03) are connected via a second conveying pipe (05), characterized in that: It also includes a zoned heating system, which includes a first heating mechanism (06) and a second heating mechanism (07). The first heating mechanism (06) is used to heat the second conveying pipeline (05), and the second heating mechanism (07) is used to heat the ton (01). The degassing tank (03) is equipped with a vacuum sensor; one of the first conveying pipe (04) or the second conveying pipe (05) is equipped with a first temperature sensor (08) at one end near the conveying pump (02), and the second conveying pipe (05) is equipped with a second temperature sensor (09) at one end near the degassing tank (03). It also includes a controller, which is communicatively connected to the vacuum sensor, the delivery pump (02), the first heating mechanism (06), the second heating mechanism (07), the first temperature sensor (08), and the second temperature sensor (09).

2. The gradient temperature-controlled transport device based on vacuum degassing according to claim 1, characterized in that: The first temperature sensor (08) is disposed on the first conveying pipe (04), the second conveying pipe (05) is provided with a third temperature sensor (10), the controller is communicatively connected to the third temperature sensor (10), and the first heating mechanism (06) is used to heat different areas of the second conveying pipe (05).

3. A gradient temperature-controlled delivery device based on vacuum degassing according to claim 2, characterized in that: A fourth temperature sensor (11) is provided in the middle region of the second conveying pipe (05), and the controller is communicatively connected to the fourth temperature sensor (11).

4. The gradient temperature-controlled transport device based on vacuum degassing according to claim 1, characterized in that: The conveying pump (02) is located below the ton (01) so that the material in the ton (01) flows to the conveying pump (02) by gravity.

5. The gradient temperature-controlled transport device based on vacuum degassing according to claim 1, characterized in that: The first heating mechanism (06) is a heat exchanger, and the second heating mechanism (07) is a drying room.

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