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Principle analysis of combined heat pump system This paper introduces a heat pump series combination technology, which can make full use of the effective heat energy in geothermal or waste hot water at the evaporator side, and can fully improve the temperature difference between supply and return water at the high temperature side, so as to expand the working range of the heat pump. The feasibility of this application is verified by the actual operation data. -
WL combined insulated safety barrier Shijiazhuang Kerui Electric Co., Ltd. specializes in the production of [combined guardrail - safety guardrail - safety fence], with excellent quality and low price! -
Calculation of mounting non combined resistance voltage division This data is for the calculation of the voltage distribution of the mounted non combined resistance. The quantities are calculated from the voltage distribution, back calculation voltage, error value, etc., which can be downloaded for reference. -
Technical standard for 35kV station transformer Technical Standard for 35kV Station Transformer of State Grid, 2018 Edition, Double winding Oil immersed Transformer -
Installation process standard of combined air conditioning unit and fresh air unit Installation process standard of combined air conditioning unit and fresh air unit -
New national standard for modular air conditioning units New national standard for modular air conditioning units -
Combined air conditioning system of runner and cooling dehumidification Introduction: This paper analyzes the characteristics of the combined air conditioning system of runner and cooling dehumidification, compares it with the cooling dehumidification air conditioning system, and establishes the mathematical model of the combined air conditioning system of runner and cooling dehumidification. -
IEC60076 transformer standard (English version) A complete set of IEC60076 transformer standards - English version -
Basic knowledge of combined air conditioning box The basic knowledge of the combined air conditioning box shall be kept flat and unobstructed during the construction process to avoid the disturbance of the construction vehicles to the formed lining concrete slab. -
Installation process standard of power transformer This process standard is applicable to the installation of 10kV and below indoor transformers in general industrial and civil building electrical installation engineering. -
Fan wall combined air conditioning unit This material is a fan wall combined air conditioning unit. This paper develops a new structure fan section - fan wall for the combined air conditioning unit, which is composed of fan units without volute arranged in parallel according to certain rules. Energy saving can be achieved by turning off the number of fans and using frequency conversion technology, which has great advantages over the fan sections of other combined air conditioning units. Detailed content, value -
Brief Introduction of Combined Stainless Steel Water Tank New type stainless steel water tank product Introduction to combined stainless steel water tank -
Flexible combined suspension crane Chongqing Yingkeli Electromechanical Equipment Co., Ltd. is a joint-stock enterprise specializing in the sales, installation, maintenance and inspection of imported lifting equipment. It also undertakes the maintenance, inspection, crane transformation, and installation of overload limiters of domestic cranes. More than 3 years of operation, sales and -
Summary of the selection of combined air handling units With the progress of society, people have higher and higher requirements for working environment and quality of life. It is gradually recognized that the building environment plays an extremely important role in human life, work efficiency and product quality. How to design an excellent combined air handling unit? In combination with my work experience for several years, here are some key considerations in the design of combined air handling unit -
Some Common Sense about Transformer Some Common Sense about Transformer -
Root combined air handling unit The filling material of the box board of the Roth combined air handling unit is high-pressure polyurethane foam. The new patented concave convex groove buckle type forced sealing frame plastic profile and the internal and external steel plates of the box board form a whole through high-density polyurethane foam to ensure the thermal insulation performance and strength of the box.. -
Calculation sheet for foundation lattice column of combined tower crane Calculation sheet of combined tower crane foundation lattice column, overall stability check calculation of large lattice column composed of four lattice columns, single lattice column check calculation, single limb stability check calculation -
Discussion on the Control and Protection Function of Combined Electrical Apparatus for 10kV Transformer In the control and protection of 10kV medium and small capacity terminal user distribution transformer, the combination of high-voltage load switch and high-voltage fuse has replaced the high-voltage circuit breaker previously used. -
Relevant requirements on transformer room door Some transformer doors do not need fire protection, and some transformer doors do not need fire protection -
Code for design of modular air conditioning units The design specification of modular air conditioning unit is absolutely worth collecting and is very complete. It is the essential material and essence of design! -
Detailed explanation of design and selection of combined air conditioning box This document is a detailed explanation of the design and selection of combined air conditioning box, ppt format, page 57. Model selection I, definition II, classification III, common model IV, design model selection V, case I, definition of air treatment equipment without cold and heat sources assembled from various air treatment functional sections. Main functional sections: mixing section, filtering section, surface cooling section, heater -
Selection experience of combined air handling unit The combined air handling unit is a kind of terminal equipment commonly used in the whole air system, which usually includes the flow equalization section, filter section (coarse, medium and high efficiency), surface cooling section (or water spraying section), heating section, humidification section, air supply section, return section, intermediate section and noise elimination section. Designers can flexibly select standard sections according to cold (hot) load, air supply temperature, air supply humidity, noise and other parameters -
Installation of combined air conditioner and fresh air unit Material requirements, operation conditions, operation process -
User Manual of Combined Air Handling Unit The four sides of the insulation wall panel of Orwell series modular air handling units are made of specially made high-strength aluminum profiles. The four sides of the aluminum alloy frame and the internal and external metal plates are made into a high-strength insulation box panel by high-pressure polyurethane foaming. The internal and external metal plate parts of the box are ingeniously separated by the polyurethane insulation material layer and the specially made thermal insulation high-strength engineering plastic parts, Box panel -
Process standard and construction key points of cast-in-place concrete main transformer foundation Plywood or other large formworks with a thickness of more than 15mm shall be used as the formwork, and the surface shall be flat, clean and smooth. If the surface finish of the formwork cannot meet the requirements, the 1mm thick PVC board can also be pasted. -
Analysis on design and construction of PHC pipe pile combined retaining support During the foundation pit construction, when the foundation pit support structure requires both soil retaining and seepage resistance, the foundation pit support is supported by underground continuous wall, steel sheet pile and continuous cast-in-place row pile. Although the problem of soil retaining and seepage resistance can be solved, the construction technology requires high requirements, complex joints, long construction period, and expensive costs -
GB1332691 Noise Limits for Combined Air Handling Units This document is the noise limit of GB 13326-91 modular air handling units. It contains complete and detailed information, which can be downloaded by designers for reference. -
Selection experience of combined air handling unit Content Introduction The combined air handling unit is a kind of terminal equipment commonly used in the whole air system, which usually includes the flow equalization section, filter section (coarse, medium and high efficiency), surface cooling section (or water spraying section), heating section, humidification section, air supply section, return section, middle section and silencing section. Designers can be flexible according to cold (hot) load, air supply temperature, air supply humidity, noise and other parameters -
Expert system for design of small combined cold storage This information is an expert system for the design of small combined cold storage. The expert system model, fuzzy logic method and design examples of small combined cold storage are used to simulate the symbolic reasoning and selection of empirical data in the design of cold storage by experts, and good design results are obtained. The content is detailed and worth downloading. -
Design of Chemical Fiber Combined Air Conditioning Control System This document is the design of the control system of the chemical fiber combined air conditioner. The article introduces the structure and working principle of the chemical fiber combined air conditioner, and gives the software and hardware design scheme for controlling the control system. The content is detailed and worth downloading. -
Introduction to combined air conditioning, purification air conditioning, and wind wheel dehumidification Introduction to air conditioning configuration, dehumidification and other related information in the purification clean room, entry level information, you are worth collecting -
Training materials of combined air conditioning unit The training materials of the combined air conditioning unit include: the working principle of the combined air conditioning unit, the explosive structure of the unit, the internal structure of the unit, etc., for reference. -
Special construction scheme for combined cantilever scaffold This document is a special construction plan for combined cantilever scaffold, with a total construction area of 131000 square meters, including 7 high-rise buildings (18F), underground garage and civil air defense. The structure type of this project is cast-in-place shear wall structure. The contents include: structural calculation, hazard identification and emergency plan. The design is accurate and the contents are detailed, which is worth downloading.
