Vacuum Epoxy Resin Casting MachineFor Dry Transformer With Circular Vacuum Drying Equipment

Pressure Increasing Drying plant is suitable for vacuum casting of two-component premixed filler epoxy resin.

According to the user's production needs, WUXI JIACHEN POWER ELECTRONICS EQUIPMENT CO.,Ltd. has determined the following technical solutions based on the company's many years of accumulated pouring equipment manufacturing experience and design specifications for further discussion and negotiation between the two parties.

• The design of this set of equipment adopts the following relevant standards, relevant manuals and standards.

• Equipment characteristics

1. The vacuum pressure casting equipment in this plan is suitable for vacuum casting of cast-type transformers and reactors of 35kV and below.

2. This solution reflects the requirements of energy saving and environmental protection. The specially manufactured electric heating plate has a service life more than three times that of the heating plate imported from Germany, and the heating power is 75% of that of the heating plate imported from Germany. It is a truly energy-saving and environmentally friendly product.

3. Unique filtering system can effectively prevent resin vapor from entering the vacuum pump.

• Technical solutions:

1. Equipment composition

2. Equipment technical indicators and parameters

2.1,Pressure pouring tank size Φ3000×L3500

2.2,Vacuum system main pump pumping speed 600L/S

2.3,Pouring tank operating temperature 70～85℃

2.4,Ultimate vacuum degree of pouring tank

(cold state, no load) ≤50Pa

2.5,Pouring tank leakage rate ≤50Pa.L/S

2.6,Working vacuum degree of pouring tank 50～100Pa

2.7,work pressure 0～0.4Mpa

2.8,Maximum design pressure 0.75Mpa

2.9,The biggest pressure on famous brands 0.6Mpa

2.10,This equipment adopts manual measurement and dynamic mixing of materials.

2.11,This equipment adopts vacuum positive pressure pouring process.

2.12,The mixing tanks are all electrically heated, with thermal oil as the heat transfer medium and automatic temperature control. The pouring tank is directly heated by electric heating elements. Each heating part is insulated with thermal insulation materials, the pouring tank is armored with stainless steel plates (SUS430), and the mixing tank is armored with thin steel plates and surface-coated. The outer surface temperature of the insulation layer shall not be higher than room temperature by 20°C.

3. Equipment power, water, air source and basic condition requirements (user equipment: power supply, air compressor)

3.1,Rated power: 100kw, 380V, 50Hz, three-phase five-wire special distribution cabinet, the power supply is connected to the electric control cabinet.

3.2,Water source: pressure ≥0.2Mpa, maximum consumption 3 m3/h, water temperature ≤25℃.

3.3,Compressed air: 0.4～0.6Mpa, maximum consumption 0.3m3/min

3.4,Make the foundation, steel frame and embedded tank outer track according to our company's design drawings.

4. Technical conditions of each system

4.1,A set of 500L vacuum mixing degassing tank

Tank technical indicators and uses

Effective volume 500L

Thermal oil heating 10KW

Ultimate vacuum degree: 50Pa(空载,冷态)

No-load leakage rate: 50Pa.L/S

Operating temperature: 60～80℃

Tank outer surface temperature Ambient temperature﹢20℃

Equipped with a frequency conversion speed regulating device, the mixing and lifting speed can be adjusted according to the viscosity of the material; Rock wool insulation, stainless steel plate (SUS430, 1.5mm thick) armor, surface coating

This tank is used for mixing and vacuum degassing of epoxy resin and curing agent mixtures.

The mixing tank is installed above the pouring main pipe of the vacuum pressure pouring tank to increase production.

Tank accessories:

500L mixing tank (750kg material)

4.2,A set of vacuum pressure pouring tank system

Pressure tank technical indicators and uses:

Horizontal tank inner wall dimensions: Φ3000mm×3500mm

Ultimate vacuum degree: 30Pa(No load, cold state)

No-load leakage rate: 100Pa.L/S

Operating temperature: 70～85℃

Tank outer surface temperature: Ambient temperature +20℃

work pressure 0～0.4Mpa

Maximum design pressure 0.75Mpa

nameplate maximum pressure 0.6Mpa

Field test pressure 0.8Mpa(水压)

The pouring pipe is cut by a manual ball valve, and the actual required vacuum pouring valve can be adjusted according to the quantity of products. The flange interface of the pouring pipe is reserved for future upgrades. The pouring tank is horizontal, with a side swing door. The tank body is a vacuum pouring tank structure. After the tank door is closed in place, it is locked with flange staggered teeth.

The use of vacuum casting technology can optimize the casting process, increase the permeability of the material, and ultimately reduce the product's .The effect of partial discharge indicators.

After the tank door is closed in place, it is manually rotated and locked.

The tank is installed on the ground, and the tank is equipped with a light rail (national standard 15kg) and a work trolley (1700X2800mm).

The outer surface of the tank is heated by an electric hot plate;

The height of the track inside the tank is flush with the track of the transfer trolley outside the tank (the transfer trolley outside the tank is user-made) for convenience.

Trolley entry and exit;

Rock wool insulation and stainless steel sheet (SUS430) armoring treatment. The tank is equipped with other interfaces that meet process requirements.

Tank accessories

4.3,Two heating systems

temperature control system, which facilitates the temperature adjustment of each unit. The mixing tank adopts thermal oil heat transfer method. The pouring tank is directly heated by Wuxi electric heating plate, with automatic temperature control and over-temperature alarm. The power is 54KW and the maximum heating temperature is 130℃.

The heating temperature of all mixing tank heating systems is adjustable from normal temperature to 80°C.

System Configuration:

Heating system for 500L final mixing tank

Heating system of vacuum pressure pouring tank

4.4 ,Two sets of vacuum systems (3 vacuum pumps in total)

4.4.1,A set of rotary blade Roots unit has a maximum pumping speed of 300L/S for the pouring tank vacuum pumping unit. The working vacuum of the system can be controlled between 50-200Pa; Reduce the possibility of materials being pumped into the vacuum system due to high vacuum degree; The system is equipped with two sets of dedicated filters to maximally block impurities in the extracted gas and capture condensable gases to protect the vacuum pump.

Configure attachments

4.4.2,A VSV-100 vacuum unit is used to vacuum the vacuum mixing and degassing tank, with a pumping speed of 25L/S.

Configuration attachments for the system:

4.5,One set of automatic cleaning system

4.5.1,This system includes: diaphragm transfer pump, solvent tank, water tank, pipeline, valve, vacuum gauge, etc;

4.5.2,The system transports the solvent to the mixing tank through a diaphragm pump;

4.5.3,The automatic cleaning process is completed by pouring the pipeline and valve back to the solvent tank through the flow tank, valve, and pipeline;

4.5.4,The solvent tank is equipped with a discharge valve to regularly discharge sediment.

4.6,One set of cooling water pipeline system

This system includes cooling water pipes, valves, pressure gauges, etc. at each water consuming point within the equipment scope. Users need to connect the water supply and return points to the equipment site within a range of 5 meters.

Provided by the supplier:

4.7,One set of pneumatic pipeline system

4.7.1,Used to provide power to various pneumatic valves and cylinders. The user provides an air source within 5 meters of the equipment site.

Provided by the supplier:

4.8,One set of electronic control system (touch screen)

function:

This control system is suitable for ambient temperatures ranging from 0 to 40 ℃, and the wiring, wiring, and bridge layout are carried out in accordance with international standards.

●Detection and digital display of temperature and vacuum degree of pouring tank.

●The touch screen controls the process flow and displays the working status of each device unit.

●Realize mixing motor control, pneumatic valve and electromagnetic valve control.

●Realize interlocking and interlocking between pumps and valves of the vacuum unit.

●Implement an alarm device for insufficient air pressure and water pressure.

●The feeding of the mixing tank is manually prepared and input into the mixing tank.

●Capable of both manual knob control and touch screen control

configuration:

Electric control cabinet 1 SET

Touch Screen 1 SET

Digital vacuum gauge 1 SET

Digital temperature controller 3 SETS

Solid-state relay 2 SETS

frequency converter 1 SET

temperature sensor 4 SETS

Button, knob 1 SET

relay 1 SET

Air Switch 1 SET

Motor protection switch, etc 1 SET

Wire and cable 1 SET

Bridge 1 SET

4.9 Other technical requirements

4.9.1,Surface rust removal, rust prevention, and painting treatment of system components.

4.9.2 The outer surfaces of all components of the heating system (except for armored parts and purchased components) are all warm red.

4.9.3 The outer surface of the electric control cabinet is sky blue

4.9.4 The outer surfaces of the remaining components (except armored components and purchased parts) and the equipment working platform are all industrial gray.

4.10,A set of equipment installation steel frame platform (including materials)

This steel frame platform is used to install this set of equipment. The steel frame is a 2-layer structure. The mixing tank is placed on the second-story steel platform.

We provide the drawings and materials of the steel frame.

五,Random accessories and spare parts list

Application: