China Chengda Engineering Co., Ltd.

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Technology and  Ability

Technology and Ability

People Oriented, Systematic, Standardized

Summary of Chengda’s Patents


No.

Patent Description

Type

Patent No.

1

A Mother Liquor Deammoniation Process and Equipment Used for Soda Ash Production by Hot Process

Patent for Invention

ZL201510599474.7

2

Shaft Seal Structure of Centrifugal Coal Slurry Pumps

Patent for Invention

ZL201410671156.2

3

A New Process for Purification of C4 Hydrocarbon Fluids

Patent for Invention

ZL201510580729.5

4

Automatic Loading System and Loading Method of Leak-Proof Loading Arms for Liquid Chlorine Tank Trucks

Patent for Invention

ZL201410173352.7

5

An Ammonia and Carbon Separation Device and Process

Patent for Invention

ZL201410382748.2

6

A Device and Process to Separate Mixed Gases Containing NH3 and CO2

Patent for Invention

ZL201410382834.3

7

A Device and Process Using Multi-Stage Non-Balanced Absorption Method to Separate NH3 and CO2 Mixed Gas

Patent for Invention

ZL201410382629.7

8

Packing Shaft Seal Structure Used for HP Reciprocating Pumps

Patent for Invention

ZL201410026553.4

9

A Soda Ash Production Method by Supplementing CO2 to Flue Gas

Patent for Invention

ZL201310579696.3

10

Dichloroprene Preparation Method and Preparation Unit from Dichlorobutylene  

Patent for Invention

ZL201310443761.X

11

An Investment-Saving Ammonia Synthesis Process and Device

Patent for Invention

ZL201310290488.1

12

A Composite Catalyst Used to Prepare Trichlorosilane by Catalytic Hydrogenation of Silicon Tetrachloride  

Patent for Invention

ZL201210546845.1

13

A High-Efficiency Gas-Liquid Phase Mercury Recovery and Totally Enclosed Hydrochloric Acid Circulating Process for Acetylene-Based VCM Plants

Patent for Invention

ZL201110451109.3

14

A Urea Ammonium Nitrate Solution Preparation Method

Patent for Invention

ZL201110428540.6

15

A Flexible Thin Tubesheet Type Reformed Gas Waste Heat Boiler

Patent for Invention

ZL201110058830.6

16

Anti-Sand and Dust Removal Technology for Cooling Towers

Patent for Invention

ZL200810021889.6

17

Cleaning Process for External-Cooling Shift Gas Soda Ash Preparation

Patent for Invention

ZL200710050017.8

18

DME Product Separation Method in DME Synthesis

Patent for Invention

ZL01107301.2

19

A BDO Production Wastewater Treatment Method

Patent for Invention

ZL200710077937.9

20

High-Efficiency Natural Circulation External Cooling Carbonating Towers

Patent for Invention

ZL03234453.8

21

One-Step Gas-Phase Process for Preparation of Cyanuric Chloride

Patent for Invention

ZL94111956.4

22

High Starting Torque Electronic Variable-Resistance Squirrel Cage Motors

Patent for Invention

ZL86105950.6

23

Carbonating Towers Cooled Externally by Natural Circulation

Patent for Invention

ZL87103005.5

24

Ammonium Phosphate Concentrators

Patent for Invention

ZL92108018.2

25

Formaldehyde Reactors

Patent for Utility Model

ZL201720011037.3

26

A Multi-Channel Waste Heat Boiler Used in Gas-Fired Power Stations

Patent for Utility Model

ZL201720608755.9

27

Burners for Radial-Flow Secondary Reformers

Patent for Utility Model

ZL201720555971.1

28

Burners for Secondary Reformers

Patent for Utility Model

ZL201720554912.2

29

Once-Through Molten Salt Steam Generator

Patent for Utility Model

ZL201720555968.X

30

Array Built-in Multi-Tube Banks Integrated Cooling Unit

Patent for Utility Model

ZL201720554900.X

31

Bayonet Jacketed Heat Exchange Tube Photothermal Absorber for Solar Photothermal Power Generation

Patent for Utility Model

ZL201720555967.5

32

Enclosed Sampling Device for Toxic and Harmful Gases

Patent for Utility Model

ZL201720610767.5

33

A Reactor with Distributed Flexible Plug

Patent for Utility Model

ZL201720608139.3

34

A Device to Recover Hydrogen from Hydrogenation Synthesis Vent Gas of BDO Plant

Patent for Utility Model

ZL201720832368.3

35

Built-in Blind Plate Driving System for Boiler By-Pass of Improved Gas Turbine Power Stations

Patent for Utility Model

ZL201720920485.5

36

Built-in Large Flux Filter Cartridge Blockage-Proof Plate Type Cooler for Power Plants

Patent for Utility Model

ZL201720920622.5

37

A Waste Heat Boiler with Plum Blossom-Shaped Tube Arrangement

Patent for Utility Model

ZL201721262572.2

38

Bayonet Jacketed Heat Exchange Tube Steam Generator for Solar Photothermal Power Generation

Patent for Utility Model

ZL201721262588.3

39

A Radial Steam Raising Hydrogenation Reactor for Production of Glycol With Syngas

Patent for Utility Model

ZL201720955015.2

40

A Double Jacketed High-Temperature Molten Salt Tank

Patent for Utility Model

ZL201721106929.8

41

Double-Valve Type Waste Heat Boiler By-Pass System of Gas Turbine Power Stations

Patent for Utility Model

ZL201721262573.7

42

A Double-Filmed High-Temperature Molten Salt Tank

Patent for Utility Model

ZL201721107600.3

43

Unitized Equipment to By- Produce Superheated Steam

Patent for Utility Model

ZL201620534937.1

44

A Circuit Isolation Structure

Patent for Utility Model

ZL201620193972.1

45

Silane Moving Bed Reactor

Patent for Utility Model

ZL201620214808.4

46

Methanol Reactor

Patent for Utility Model

ZL201620791005.5

47

Safety Heat Exchanger

Patent for Utility Model

ZL201620927014.2

48

Enclosed Calcium Carbide Conveying System

Patent for Utility Model

ZL201620927367.2

49

A Device of Recovering BDO from Organic Effluent in BDO Production

Patent for Utility Model

ZL201620986381.X

50

Pulverized Coal Bunker Activation Cone

Patent for Utility Model

ZL201621055764.1

51

Erection Structure for Large Air Cooler Channels

Patent for Utility Model

ZL201621055875.2

52

A Novel Urea Ammonia Nitrate Solution Mixing Reaction Equipment

Patent for Utility Model

ZL201621151652.6

53

Dusting System for Calcium Carbide Truck Unloading

Patent for Utility Model

ZL201620927369.1

54

Tail Gas Recovery Device for Metal Shell of Rectangular Silicon Carbide Smelting Furnace

Patent for Utility Model

ZL201620214658.7

55

Tail Gas Recovery Device for Rectangular Silicon Carbide Smelting Furnace

Patent for Utility Model

ZL201620214536.8

56

Syngas Waste Heat Boiler

Patent for Utility Model

ZL201520836802.6

57

A Formaldehyde Reactor

Patent for Utility Model

ZL201520831298.0

58

Gas Distributor for Cold Hydrogenation Fluidized-Bed Reactor

Patent for Utility Model

ZL201520707208.7

59

Steam and Off-Gas Utilization Device Used in Coal-To-Methanol Plants

Patent for Utility Model

ZL201520529912.8

60

A Coal Lock Hopper Pressurizing and Depressurizing System

Patent for Utility Model

ZL201520529895.8

61

PVC Reactor Full Circulation Jacket Structure

Patent for Utility Model

ZL201520398734.X

62

Methanol Reactor Gas Distributor

Patent for Utility Model

ZL201520398707.2

63

Centrifugal LP Coal-Water Slurry Pump

Patent for Utility Model

ZL201520266876.0

64

A High-Efficiency Sieve Tray Carbonating Tower for Sodium Bichromate Production with Carbonating Process

Patent for Utility Model

ZL201420613816.7

65

A Carbonating Tower Used for Sodium Bicarbonate Production

Patent for Utility Model

ZL201420613793.x

66

Shaft Seal Structure of Centrifugal Coal Slurry Pump

Patent for Utility Model

ZL201420703556.2

67

Gas-Liquid Ejection Absorber

Patent for Utility Model

ZL201420244636.6

68

Ethanol Distillation System

Patent for Utility Model

ZL201420227877.X

69

Alkylation Reactor

Patent for Utility Model

ZL201420174609.6

70

Multi-Central Tube Heat Exchange Reformer

Patent for Utility Model

ZL201420150362.4

71

Ammonia Converter with Grate Catalyst Baskets

Patent for Utility Model

ZL201420096470.8

72

Pull-back Packing Shaft Seal Structure Used for Reciprocating Pumps

Patent for Utility Model

ZL201320667284.0

73

Boosted Piston Packing Shaft Seal Structure Used for Reciprocating Pumps

Patent for Utility Model

ZL201320667477.6

74

Reactor for Conversion of Silicon Tetrachloride to Trichlorosilane

Patent for Utility Model

ZL201320593245.0

75

Self-Suction Top-Mounted Circular Flame Fuel Classified Low NOX Gas Burner

Patent for Utility Model

ZL201320548586.6

76

Vinyl Chloride Converter

Patent for Utility Model

ZL201320532500.0

77

Floating Head Methanol Converter Inlet/Outlet Heat Exchanger

Patent for Utility Model

ZL201320508279.5

78

Reformer Pulley Counterweight Hanger System

Patent for Utility Model

ZL201320495252.7

79

Full Radial Steam-Raising Sulfur-Resistant Shift Conversion Reactor

Patent for Utility Model

ZL201320468502.8

80

Recovery Device of Monovinyl Acetylene (MVA) and Acetaldehyde from Acetaldehyde Washing Water

Patent for Utility Model

ZL201320453476.1

81

Continuous Tar Separation Device for Ethynyl Ethylene Reactor

Patent for Utility Model

ZL201320453444.1

82

An Investment-Reducing Ammonia Synthesis Unit

Patent for Utility Model

ZL201320411926.0

83

Calcium Carbide Closed Circulating Pneumatic Conveying System

Patent for Utility Model

ZL201320274822.X

84

High-Efficiency Environment-Friendly Fine Calcium Carbide Preparation System

Patent for Utility Model

ZL201320274973.5

85

An Axial-Radial Two-Bed Sulfur-Resistant Shift Conversion Reactor

Patent for Utility Model

ZL201220740547.1

86

Closed Calcium Carbide Slag Circulating Pneumatic Conveying

Patent for Utility Model

ZL201220423129.X

87

A Nitric Acid Absorber

Patent for Utility Model

ZL201120370907.9

88

An Ammonia and Air Mixing Device

Patent for Utility Model

ZL201120371336.0

89

An Environment-Friendly Ammonia Oxidation Reactor

Patent for Utility Model

ZL201120372119.3

90

A Unitized Heat Exchanger

Patent for Utility Model

ZL201120367498.7

91

A Flexible Thin Tubesheet Reformed Gas Waste Heat Boiler

Patent for Utility Model

ZL201120063429.7

92

A High-Efficiency Sieve Tray Carbonating Tower with Liquid Phase as Continuous Phase

Patent for Utility Model

ZL201120061607.2

93

A Urea Stripping Device

Patent for Utility Model

ZL201020642853.9

94

Unitized MP Ammonia Absorber

Patent for Utility Model

ZL201020635322.0

95

Anti-Sand and Dust Control Device for Cooling Towers

Patent for Utility Model

ZL200820041774.9

96

Novel High-efficiency Chlorine Bubble Cap Drying Tower

Patent for Utility Model

ZL200820063037.9

97

High-safety Automatic Liquid Chlorine Vaporization System

Patent for Utility Model

ZL200820062694.1

98

Liquid Chlorine Tank Car Leakless Crane Automatic Loading System

Patent for Utility Model

ZL201420210140.7

99

Carbon Steel Methanol Converter with Protection Layer

Patent for Utility Model

ZL200720081558.2

100

Coal-Water Slurry Water Wall Gasifier

Patent for Utility Model

ZL200620034039.6

101

Sealed Single-Tube Heat Transfer Type Reformer

Patent for Utility Model

ZL200620034034.3

102

Elliptical Tubesheet Sleeve Heat Transfer Type Reformer

Patent for Utility Model

ZL200420032639.X

103

Combined Methanol Distillation Column

Patent for Utility Model

ZL03250358.X

104

External Cooling Carbonating Tower for Solvay Process

Patent for Utility Model

ZL03234905.X

105

Heat Exchange Type Secondary Reforming—Methanol Production Unit with Two-Column Synthesis

Patent for Utility Model

ZL02244950.7

106

Secondary Reformer with Start-up Burner in Natural Gas Heat Exchange Type Reforming Device

Patent for Utility Model

ZL02244856.X

107

Liquid Ring Pump with Integrated Separation and Cooling

Patent for Utility Model

ZL02222712.1

108

Secondary Reformer Burner

Patent for Utility Model

ZL01206954.X

109

Internally Circulating Salting-out Crystallizer

Patent for Utility Model

ZL00223724.5

110

Long-hole Waveform Distribution Radial Ammonia Converter

Patent for Utility Model

ZL00222005.9

111

Terephthalic Acid Drier

Patent for Utility Model

ZL99241694.9

112

Carbonating Tower for Soda Ash Production with Shifted Gas

Patent for Utility Model

ZL99232250.2

113

Vertical Internal Heat Exchange Type Catalytic Converter

Patent for Utility Model

ZL98228404.7

114

Horizontal Reaction Converter

Patent for Utility Model

ZL98228405.5

115

Cartridge Mechanical Seal and Shaft Seal Box

Patent for Utility Model

ZL96233361.1

116

Model Yl750/3 Liquid Ring Chlorine Pump

Patent for Utility Model

ZL92220073.4