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Place of Origin: | China |
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Brand Name: | MICH |
Certification: | ISO9001 |
Model Number: | EPLAEUMIEH |
Minimum Order Quantity: | 1 piece |
Price: | USD20-USD200,000 |
Packaging Details: | plywood crates |
Delivery Time: | in one month |
Supply Ability: | As per the product output capacity |
Heating Element: | Mineral Insulated Heating Cable | Property: | Long Life, Explosive-proof, Low Noise Etc |
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Function: | Ammonia Evaporator | Structure: | Horizontal Or Vertical |
Output: | 3-25 KW | Voltage: | 220, 380, 600 Etc |
Power Phases: | 2 Or 3 | Immersion Length: | Up To 6600 Mm |
High Light: | 380V Mineral Insulated Heaters,10kw Mineral Insulated Heaters,ISO thermic fluid heater |
Explosive-proof Liquid Ammonia Evaporator Use Mineral Insulated Electric Heater is designed as a skid block with the evaporator body, which comprises a shell, an evaporator tube connected with liquid ammonia inlet pipe, an explosion-proof electric heater, a heat medium circulating pump and an intelligent control system.
The reducing agent of flue gas SCR denitration treatment device installed and used in thermal power plants is ammonia, which is mainly formed by evaporation of liquid ammonia. Currently, there are two structural modes mainly used in ammonia evaporation device: one adopts steam as heat source, and the other adopts electric heating as heat source.
The steam in the first liquid ammonia evaporation device is directly sprayed into the hot medium through the steam nozzle, and the temperature is controlled by the temperature control unit of the hot medium. The liquid ammonia evaporates into ammonia in the ammonia evaporation tube. The device generally can only use low-pressure saturated steam, and the noise generated when the soda is mixed is relatively large.
In the practical application of the power plant, there is generally no low pressure saturated steam. So it is costly to add a set of desuperheating decompression device to change extra low-pressure superheated steam into low pressure saturated steam, and evaporation of ammonia gas pressure is higher, which generally need another set of pressure-relief devices for ammonia to lower pressure to meet the technological requirements.
The other electric ammonia evaporation heating device, liquid ammonia is heated by heat transfer with the heat medium in shell which have been electrically heated by the heater. and the liquid ammonia is heated and evaporated to the required temperature of the process through the heat exchange of the heat medium. The heating source is an explosion-proof electric heater.
The heat medium in the shell is controlled by the temperature control unit. In a certain temperature range, liquid ammonia evaporates into ammonia gas in the ammonia evaporation coil.
Electric heating liquid ammonia evaporator uses circulation heat medium as heating transfer medium, possesses the characteristics of noise elimination, energy saving and adjustable. The liquid ammonia evaporation heat and thermal cycle of convective mass medium are provided directly by electric heating and the device can reduce running noise, improve the effect of heat transfer, optimize the process, adapt to the change of working conditions of the ammonia gas pipeline and guarantee reliable operation of downstream equipment and the whole process. Meanwhile it saves costs, controls the project total investment, implements the cost per unit benefit maximization and create a good work and production environment.
Structure and working principle
The electric heater structure consists of nine parts. (See Figure 1)
1 Inlet pipe 2 Diversion Chamber 3 Heating Chamber 4 Temperature Measuring Resistor 5 Over Temperature Protector 6 Junction Box 7 Oil Outlet Pipe 8 Mixed Flow Chamber 9 Sewage Outlet
Figure 1: Schematic diagram of liquid electric mineral insulated heater
2. Working Principle
The cold medium enters the diversion chamber through the oil inlet, so that the medium flows into the mixing chamber along the periphery of the heating element, and the mixed medium flows out from the oil outlet at a uniform temperature. The mixing chamber is equipped with a temperature measuring sensor, and the temperature signal is collected and transmitted to the electronic control system. The temperature control instrument controls the primary circuit to realize automatic control of the oil temperature. When the oil products or electric heating element of the heater is overheated, the protection device automatically cuts off the power supply and the control cabinet emits an audible and visual alarm signal.
Fourth, technical specification
1. Model meaning
2. Technical data
The main technical data are shown in Table 1.
Table 1 Technical Data and Outer Dimension Sheet for Vertical Electric Heater
Model |
Rated Power (Kw) |
Rated Voltage (V) |
Rated Current (A) |
Power Phase | Outer Dimension(mm) | Body Weight (Kg) | ||||
h1 | H | D |
6.3 MPa |
4.0 MPa |
2.5 MPa |
|||||
YDRQ-3/220/L | 3 | 220 | 13.5 | 1 | 180 | 720 | φ219 | 165 | 105 | 90 |
YDRQ-5/220/L | 5 | 220 | 22.5 | 1 | 180 | 860 | φ219 | 175 | 120 | 105 |
YDRQ-7.5/220/L | 7.5 | 220 | 34 | 1 | 180 | 1100 | φ219 | 190 | 130 | 115 |
YDRQ-10/3/380/L | 10 | 380 | 15 | 3 | 400 | 1000 | φ273 | 240 | 200 | 165 |
YDRQ-15/3/380/L | 15 | 380 | 22.5 | 3 | 400 | 1474 | φ273 | 280 | 240 | 210 |
YDRQ-20/3/380/L | 20 | 380 | 30 | 3 | 544 | 1100 | φ377 | 475 | 320 | 260 |
YDRQ-30/3/380/L | 30 | 380 | 45 | 3 | 544 | 1544 | φ377 | 530 | 370 | 290 |
YDRQ-50/3/380/L | 50 | 380 | 75 | 3 | 544 | 1850 | φ377 | 640 | 510 | 430 |
YDRQ-80/3/380/L | 80 | 380 | 120 | 3 | 600 | 2425 | φ500 | 930 | 700 | 510 |
YDRQ-100/3/380/L | 100 | 380 | 150 | 3 | 648 | 1850 | φ600 | 1200 | 960 | 710 |
YDRQ-150/3/380/L | 150 | 380 | 226 | 3 | 648 | 2920 | φ600 | 1550 | 1050 | 820 |
YDRQ-200/3/380/L | 200 | 380 | 300 | 3 | 648 | 3200 | φ600 | 1790 | 1240 | 900 |
YDRQ-250/3/380/L | 250 | 380 | 375 | 3 | 822 | 3482 | φ1000 | 5000 | 3800 | 2900 |
YDRQ-300/3/380/L | 300 | 380 | 450 | 3 | 822 | 3850 | φ1000 | 6200 | 4950 | 3240 |
YDRQ-600/3/380/L | 600 | 380 | 910 | 3 | 910 | 4854 | φ1200 | 8000 | 6900 | 5800 |
Table 2 Technical Data and Outer Dimension Sheet for Horizontal Electric Heater
Model |
Rated Power (Kw) |
Rated Voltage (V) |
Rated Current (A) |
Power Phase | Outer Dimension(mm) | Body Weight (Kg) | |||||
L | L1 | L2 | D |
6.3 MPa |
4.0 MPa |
2.5 MPa |
|||||
YDRQ-3/220/W | 3 | 220 | 13.5 | 1 | 1100 | 750 | 450 | φ159 | 85 | 55 | 45 |
YDRQ-5/220/W | 5 | 220 | 22.5 | 1 | 1300 | 1000 | 750 | φ159 | 100 | 60 | 50 |
YDRQ-7.5/220/W | 7.5 | 220 | 34 | 1 | 1650 | 1300 | 1000 | φ159 | 110 | 65 | 52 |
YDRQ-10/3/380/W | 10 | 380 | 15 | 3 | 1460 | 1050 | 750 | φ219 | 180 | 160 | 130 |
YDRQ-15/3/380/W | 15 | 380 | 22.5 | 3 | 1720 | 1400 | 1200 | φ219 | 200 | 170 | 140 |
YDRQ-20/3/380/W | 20 | 380 | 30 | 3 | 2000 | 1620 | 1300 | φ219 | 220 | 180 | 150 |
YDRQ-30/3/380/W | 30 | 380 | 45 | 3 | 2210 | 1850 | 1340 | φ219 | 240 | 190 | 160 |
YDRQ-50/3/380/W | 50 | 380 | 75 | 3 | 2750 | 2200 | 1600 | φ273 | 400 | 315 | 240 |
YDRQ-80/3/380/W | 80 | 380 | 120 | 3 | 3550 | 3100 | 2100 | φ377 | 735 | 560 | 490 |
YDRQ-100/3/380/W | 100 | 380 | 150 | 3 | 2950 | 2400 | 1750 | φ530 | 1000 | 750 | 580 |
YDRQ-150/3/380/W | 150 | 380 | 226 | 3 | 3500 | 3000 | 2300 | φ530 | 1185 | 850 | 640 |
YDRQ-200/3/380/W | 200 | 380 | 300 | 3 | 4350 | 3800 | 2650 | φ530 | 1350 | 1000 | 720 |
YDRQ-250/3/380/W | 250 | 380 | 375 | 3 | 4100 | 3600 | 2800 | φ630 | 1900 | 1450 | 1050 |
YDRQ-300/3/380/W | 300 | 380 | 450 | 3 | 4100 | 3600 | 2800 | φ630 | 1950 | 1500 | 1100 |
YDRQ-600/3/380/W | 600 | 380 | 910 | 3 | 4500 | 4000 | 3200 | φ1000 | 5100 | 3800 | 2200 |