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6000×4000×5000 Square Drying Furnace For Transformer

China WUXI JINQIU MACHINERY CO.,LTD. certification
China WUXI JINQIU MACHINERY CO.,LTD. certification
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6000×4000×5000 Square Drying Furnace For Transformer

6000×4000×5000 Square Drying Furnace For Transformer
6000×4000×5000 Square Drying Furnace For Transformer 6000×4000×5000 Square Drying Furnace For Transformer 6000×4000×5000 Square Drying Furnace For Transformer 6000×4000×5000 Square Drying Furnace For Transformer 6000×4000×5000 Square Drying Furnace For Transformer

Large Image :  6000×4000×5000 Square Drying Furnace For Transformer

Product Details:
Place of Origin: WUXI
Brand Name: Gremet
Certification: CE,COC,ISO
Model Number: 6000×4000×5000
Payment & Shipping Terms:
Minimum Order Quantity: 1 SET
Price: deciding to the size and configuration
Packaging Details: standard exporting packing
Delivery Time: 20-50 days
Payment Terms: T/T, L/C, D/A, D/P, Western Union, MoneyGram
Supply Ability: 30-50 sets
Detailed Product Description
High Light:

6000×4000×5000 square drying furnace


Transformer square drying furnace


Square Drying Furnace For Transformer


Transformer vacuum drying equipment

Technical proposal and quotation



The Variable pressure vacuum drying equipment is manufactured by our company according to the German expert J The drying principle proposed by Dr. Moore (DR, MOLL) is developed based on our experience in the design and manufacture of vacuum drying equipment. The equipment is mainly used for drying the bodies of oil immersed transformers, transformers and capacitors, which can reduce the drying time by 40~50% compared with conventional vacuum drying. It is a process equipment with reliable performance, high efficiency and energy saving.

According to the requirements of the company and in combination with the design specifications of our company's variable pressure drying equipment, the following technical proposal is hereby formulated:


  • Main purpose of the equipment


The equipment is used for the drying treatment of transformers or other electrical products with a voltage level of 220KV or below. Party B shall guarantee the process requirements and quality requirements for product treatment, and provide process treatment schemes and relevant control procedures for three voltage levels, namely 220KV, 110KV and 35KV.


  • Main technical characteristics of the equipment

This set of equipment has the following technical features:

1. It has a reasonable vacuum system design, and enough condensate is discharged from the condenser to effectively avoid water pollution to the vacuum pump during drying.

2. The rotary vane vacuum pump adopts environment-friendly vacuum pump, and the smokeless treatment can be directly discharged indoors.

3. During the heating process, according to the different temperature of the body, the pressure in the vacuum tank is periodically reduced to a certain value by automatic pressure alternation, creating the most appropriate conditions for the evaporation of water in the insulation of the body, so that the water evaporation process in the drying process is in a reasonable state.

4. The equipment can effectively solve the rust problem of iron core in the drying process through the adjustment of variable pressure drying process.

5. The automation level of the equipment and the processing technology level of the products can reach the domestic advanced level, and the quality of the processed products can reach the level of the superior products in the industry.

6. This equipment can ensure the safety of production and use.


三,Main components of equipment


1. The main components of the whole set of equipment are as follows:

1.1 One vacuum drying tank;

1.2 A set of door opening mechanism and portal frame;

1.3 One set of vacuum system;

1.4 A set of low-temperature condensation system;

1.5 Two sets of heating system

1.6 A set of pneumatic pipeline system;

1.7 A set of cooling water system;

1.8 One set of hydraulic system;

1.9 A set of control and measurement system.




Variable pressure vacuum drying equipment
Front of drying equipment Side of drying equipment


2,Site requirements (provided by Party A) and the cooperation Party A needs to provide:

Rated power: 200kW, 380V, 50Hz, three-phase, power supply connected to Party B's electric control cabinet

Cooling water: pressure > 0.1MPa, circulating water tank > 8m3.

Equipment floor area: 7000 × 5000mm, pit: 7000 × five thousand × 450mm long × wide × High)

Compressed air: 0.4-0.6Mpa, consumption 0.2 m3/min


3,Composition, structural requirements and technical parameters of each system

3.1,Vacuum drying tank:

3.1.1 Effective internal dimension of drying tank 6000 × four thousand × 5000mm (long × wide × Height), horizontal type, effective height refers to the height from the load-bearing flat car in the tank to the inner wall of the tank top, the tank door is electrically moved to open the door, hydraulically locked, and the tank door is controlled by 4000 × 5000 mm face open

3.1.2 The limit vacuum degree in cold state shall be ≤ 50Pa, the time for pumping the vacuum tank to 100Pa in cold state shall be ≤ 60min, and the air leakage rate in no-load cold state shall be ≤ 200Pa · L/S (the measurement range is 50Pa to 720Pa).

3.1.3 The tank is heated by the heat transfer oil drain pipe on four sides.

3.1.4 Rock wool is used outside the tank for thermal insulation and color steel plate is used for armouring. The maximum temperature of the external surface shall not be 25 ℃ higher than the ambient temperature (according to the national standard).

3.1.5 The tank flange seal ring is a high temperature resistant and long-life special-shaped seal ring, with an effective service life of more than 2 years. The tank flange will not be deformed after long use.

3.1.6 Provision 5.8 × 3.8M, height ≤ 0.35M, load bearing 50T trolley. The trolley can bear large transformer (100T, three fulcrums) and high temperature in vacuum tank. Trolley is driven by electric traction head, which is convenient for entering and exiting the tank.








motoried trolley


3.2,Door opening mechanism and portal frame

3.2.1,The tank door is electrically side moved to open the door, hydraulically locked, and each action is in place. The travel switch is interlocked for protection..

3.2.2,It is composed of tank door traverse gantry, drive reducer and transmission mechanism.


Electric side moving door opening mechanism


3.3, vacuum system

3.3.1,The vacuum system is configured as SV-300+SV-300+SV-300 (three Leybold pump vacuum pumps)/ZJP-600/ZJP-1200 (five vacuum pumps in total), and the maximum pumping speed of the system is 1200L/S. The vacuum system (including pumps and valves) operates automatically in sequence.

3.3.2,The main valve of vacuum system shall be high reliability and high fidelity pneumatic main valve, and the system shall also be equipped with pneumatic valve, electromagnetic vent valve, pressure sensor, vacuum pipeline and various accessories.

3.3.3,The gas extracted from the tank must be cooled and dewatered by the condenser.

3.3.4,System configuration and installation, convenient for operation and maintenance.




Vacuum drying vacuum unit


3.4,Low temperature condensation system

3.4.1 One horizontal condenser is used to condense the gas water extracted from the vacuum tank, and has the function of manual drainage without damaging the vacuum.

3.4.2 Stainless steel tubes with excellent heat transfer performance shall be used as condenser condenser tubes.

3.4.3 The system is equipped with a low temperature water chiller (Zhongshan Kairui) to provide 10 ℃ low temperature water to ensure a good condensing effect of the condenser.


3.5,Two sets of heating system

3.5.1 This set of equipment is heated by electric heating, two sets. Heat transfer oil is used as circulating heating medium. The total heating power is 144kw (two sets), and the temperature control accuracy is ≤± 3 ℃.

3.5.2 The system is composed of electric heating center, high-temperature pipeline pump, filter, high-temperature valve, pressure gauge, temperature sensor, pipeline and accessories. All heating pipelines within the equipment range are armored with SUS430 stainless steel sheet, and rock wool pipes are insulated.


3.6,Pneumatic pipeline system

3.6.1 Provide air supply for pneumatic valves within the scope of equipment.

3.6.2 The system consists of 0.2m3 air compressor, air source triplet, pipeline, valve, etc.

3.6.3 Working pressure 0.4-0.6Mpa.


3.7,Cooling water system

3.7.1 The vacuum system is cooled by independent circulating cooling water, which is composed of air-cooled chiller, pressure gauge, filter, valve and pipeline.

3.7.2 The cooling water system is controlled separately. If the cooling water pressure is insufficient, the alarm will be given in the main control system.


3.8 Hydraulic system

3.8.1 It is used to lock the tank door.

3.8.2 The system consists of hydraulic station, 4 groups of hydraulic cylinders, pipelines, valves, etc.


3.9,Measurement and control system (touch screen)

3.9.1 Integrated electric control cabinet. Two modes of automatic control and manual operation are provided.

3.9.2 As the main control element, the programmable controller+touch screen can execute the variable pressure drying process and has the following functions:

Detection, display and storage of temperature and vacuum.

The touch screen controls and displays the process flow chart and the operation status of each equipment unit.

During the drying process, select the process parameters according to the specifications of the products to be treated, and change the process parameters as required.

Interlock and interlock between pumps and valves.

Realize alarm device for insufficient air pressure and water pressure.

Automatically execute the drying process.

Automatically judge the drying end point.

3.9.4 Mitsubishi programmable controller (Mitsubishi FX series PLC) can automatically complete the control of variable pressure drying process.

3.9.5 Digital vacuum gauge shall be used for vacuum measurement.

3.9.6 Two sets of Yuguang digital display temperature controllers are used for temperature control, and the temperature control accuracy is ± 3 ℃.

3.9.7 Solid state relay is adopted as the main control element of temperature.

3.9.8 Other control components shall be products of domestic and foreign high-quality brands.


3.10,Other technical requirements

3.10.1,The external surface of each system and pipeline is marked with different colors.


四,Itemized Quotation List of Equipment Configuration


No Name Model and details unit quantity Unit USD
1 Vacuum drying tank

1. Effective size of vacuum tank 6000 × four thousand × 5000mm (long × wide × High), horizontal.

2. Limit vacuum degree of vacuum tank (no-load, cold state) ≤ 50Pa, no-load leakage rate ≤ 200Pa · L/S.

3. Working temperature 115 ± 5 ℃, automatic temperature control

4. The tank flange seal ring is a high temperature resistant and long-life special-shaped seal ring.

5. Three temperature measuring probes.

6. Two illuminated observation windows.

7. Four sets of heat transfer oil heating pipes;

8.50t trolley and electric traction head































2 Door opening mechanism Tank door traverse gantry, drive reducer, transmission mechanism set 1  
3 vacuum system

1. Three SV-300 rotary vane pumps Leybold pump vacuum

2. One ZJP-600 Roots pump

3. One ZJP-1200 Roots pump

4. One high reliability high vacuum pneumatic main valve.

5. Various vacuum valves, shock connectors, vacuum measuring elements, vacuum pipelines, etc.



















4 Condensation system

1. One horizontal condenser with new structure,

2. One water chiller.

set 1  
5 heating system

1. Heating power: 72kw, electric heating, heat transfer oil as circulating heating medium.

2. It is composed of heating center, high-temperature pipeline pump, high-temperature valve and other accessories.







6 Pneumatic system 1Air source triplet and corresponding valves, gas pipes, etc. set 1  
7 cooling water system 1.20 M3/H pipeline pump, filter, pipeline, valve, pressure gauge, etc. set 1  
8 Hydraulic system

1. It is used to lock the tank door.

2. It is composed of hydraulic station, hydraulic cylinder, valve and other accessories.







9 Electric control system

1. Integrated electric control cabinet, programmable automatic control or manual control.

2. Touch screen control.

3. Mitsubishi FX series PLC

4. Various control modules.

5. Other electrical components.

6. Transformer method process software.

7. Digital temperature controller 2 sets

8. 5 sets of temperature sensors

























10 Tank insulation 1. Rock wool, color steel plate set 1  
12 spare parts  
13 Freight and packaging charges for accessories and large tank materials (Chinese ports)  
Total amount fob USD  



五,Equipment configuration list

no name model quantity producer
1 Vacuum pump




3 sets

1 set

1 set




2 Sealing ring of tank door 4000*5000 1 piece Our company
3 Electric trolley 50T 1 set Our company
4 water chilling unit 4P 1 set Our company
5 Electric heater 72KW 2 sets Our company
6 Temperature measuring resistance 0~200℃ 4 DILIGEN
7 Lighting observation lamp   3 ZHONGSHAN
8 Observation window glass Tempering 3 Shanghai
9 condenser 6m2 1 Our company
10 Electric control system Touch automatic control 1 set Our company
11 Hydraulic system   1 set Our company
12 Pressure sensor   1 piece Shanghai
13 Vacuum gauge   1 set ruipu 
14 High temperature heat conduction pump 4KW 1 set Shanghai
15 Thermometer 708 4 sets xiamen 
16 PLC FX 1 set Mitsubishi

Contact Details

Contact Person: Mrs. Stacy

Tel: 008613400027899

Fax: 86-510-83211539

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