College】 【weak air separation, refrigeration equipment and construction equipment installation and acceptance requirements (1) --- Power By weak home network 【China】.

<br> <BR> directory <BR> <BR> Chapter I General Provisions Chapter II refrigeration equipment <BR> <BR> <BR> <BR> general provisions of Section II <BR> refrigeration compressor and piston .<BR> screw compressor refrigeration compressor section III, IV centrifugal chillers <BR> <BR> V VI ancillary equipment and piping <BR> <BR> compression refrigeration system commissioning Article .Festival desertification and absorption refrigeration unit combination of cold <BR> <BR> <BR> VIII, Chapter III of air separation equipment <BR> <BR> Section I General Provisions Section II fractionator assembly <BR> <BR> .Section IV purge <BR> <BR> overall pressure test the whole bare cold test <BR> V VI VII filled with insulation material <BR> <BR> VIII noble gas extraction equipment, turbine .<BR> piston expander expander <BR> IX Section X <BR> centrifugal cryogenic liquid pumps cryogenic liquid piston Section XI Section XII <BR> regenerative pump chiller <BR .> Section XIII Section XIV of other equipment <BR> <BR> <BR> commissioning project acceptance <BR> <BR> Chapter I General Provisions <BR> <BR> Section 1.0.1 clarifies the formulation of the .guidelines. .This specification is the refrigeration equipment, air separation equipment installation requirements of the uniform technical requirements to ensure the quality of the equipment installation and safe operation, and will continue to improve the quality of the project and promote the installation of technology continues to evolve. .<BR> <BR> Section 1.0.2 the scope of this specification section of national stereotypes of the refrigeration equipment and air separation equipment installation. .Since refrigeration equipment and air separation equipment installation and other mechanical equipment installation with different characteristics, the installation of this specification is out of the box from the device, the qualified project acceptance to commissioning date, the test run in the air (water) is .media and other media, and high temperature, low temperature, single air load, load and load Dengjun it's hard to separate sets or individually. .<BR> <BR> It on the refrigeration equipment, the installation unit is generally responsible for filling the refrigerant to the system, and system load with a construction unit commissioning, assessment system, the minimum heat load conditions until the temperature dropped to the design, rather than assessing the other is .device performance or process design specifications. .Air separation unit, a system installed units are responsible for passing the test bare cold, and commissioning the complete system with the construction unit, with the condition to the system is stable, continuous measurement of the parameters of continuous 4h up. .As for the single empty load, air or water at room temperature for the medium commissioning, installation should be installed in the unit responsible for the construction units to participate; and in other media, high or low temperatures make a trial run carried out by the construction unit, the installation unit .participate. .<BR> <BR> Or complete sets of equipment, whether stand-alone test run and found that the quality of the installation caused the problem, install the unit by the handle; even in the date of acceptance procedures for the installation that is causing the problem, should also be installed .unit is responsible for processing. .In the commissioning process, the power involved, equipment, fuel, materials (media), etc., provided by the construction unit. .Over the years the situation is the formation of the actual situation in China. .With the continuous deepening of reform and opening, every walk of life system and management are constantly reform and innovation, this can also be installed on the test run with the construction contract negotiations in the decision. .<BR> <BR> Section 1.0.3 shall be constructed according to the design is to install the basic requirements of the construction site. .Installation of refrigeration and air separation unit complex piping systems, process strictly, it is to stress the importance of this provision. .<BR> <BR> Section 1.0.4 shall in refrigeration equipment, air separation equipment installation works are involved in the construction of common technical requirements, such as the construction preparation, equipment put in place and leveling lines, anchor bolts, pads .and filling and assembly of iron content in the existing national standards (for construction machinery and equipment and acceptance of universal norms "have been regulated in detail the provisions of this specification will not repeat. in refrigeration equipment, air separation equipment installation project involves the construction of .other works and auxiliary equipment, devices, components and other installation, because of current national standards are appropriate, such as: "reinforced concrete construction and acceptance", "Construction and Acceptance of Steel", "site equipment, industrial pipe .welding engineering construction and acceptance, "" industrial pipeline construction and acceptance of norms "," Industrial equipment and pipe insulation engineering construction and acceptance "," installation of electrical installations for construction and acceptance) and "industrial automation instrumentation construction and acceptance .norms "and so on, it will not repeat the provisions of this specification. .<BR> <BR> Chapter refrigeration equipment <BR> <BR> <BR> <BR> Section I General Provisions Article 2.1.1 of the standard installation of refrigeration equipment covered by the content: the piston, .screw, centrifugal refrigeration compressor as the host of the compression refrigeration equipment, potassium bromide absorption refrigeration unit and combined cold storage. .Does not include steam jet, ammonia - water absorption refrigeration equipment, the refrigerant, the main piston device using R717, R22, R502, R12, screw-type equipment is mainly used R717, R22. .R12, the main use of centrifugal devices R717, R12, Rll; use other refrigerants refrigeration equipment installation may refer to the relevant provisions of the Code. .<BR> <BR> Clause 2.1.2 of the refrigeration unit or compressor over anti-rust warranty period or take apart and wash in need of significant deficiencies, its washable extent of the inspections should be determined; demolition order, cleaning method .technical documents on the device are required, according to their requirements. .<BR> <BR> Section 2.1.3 in this specification, the refrigeration unit means a factory with a complete refrigeration system, the host, attached to machines and other equipment are basically the same public in the refrigeration unit on the base, the products are .medium-sized air conditioners, chillers, brine and other units. .This is the refrigeration unit on the general requirements for installation procedures, see the specific provisions of other sections of this specification. .Section 2.1.4 <BR> <BR> ammonia refrigerant for copper and copper alloys have a corrosive effect, except only the phosphor bronze, in order to prevent the installation of the confusion caused by materials, potential accidents, so in the provision did not specify. .Other refrigerants on copper and copper alloy corrosion-free, installation can be applied. .Of aluminum when used as sealing materials, require high purity aluminum, here is the low magnesium content and other impurities, the use of seals not broken and not affect the performance of aluminum. .<BR> <BR> 2.1.5 installed refrigeration equipment and instrumentation used in the valve must conform to the requirements of the appropriate medium, that refrigerant must be used with corrosive effects do not occur in the special valves and instrumentation. .Therefore, when installation of the equipment should be checked to verify as to avoid accidents. .Provisions listed in the sealing material, for many years has proved its reliable performance, more commonly now being used, which is mainly used in oil and rubber, asbestos piping and refrigerant oil pipeline, the general use other rubber asbestos pipes. .<BR> <BR> 2.1.6 fluorine arc back, face covered arc welding process, which can effectively improve the weld quality. .Provisions of the relevant national standards, transportation is refrigerant pipe weld inspection should be carried out ray detection. .Also compare the permeability of refrigerant refrigeration system strong and very tight requirements, the use of the welding process, welding can improve the passing rate of testing, and effectively ensure airtight weld and weld pipe .No internal welding slag. .Oxide exists cleaner. .The application of many units proved a good effect, it is to be recommended in the provisions. .Where N is the tungsten arc welding or other metal arc welding very atmosphere. .<BR> <BR> Section 2.1.7 Freon gas on the Earth's atmosphere as the ozone layer has harmful effects, domestic manufacturers will also be gradually reduced after the freon refrigeration products production. .In the construction, in order to prevent pollution of the environment, should try not to freon gas emissions to the atmosphere, although the above-mentioned common sense, but to attract attention, especially as the provisions included in the provisions. .<BR> <BR> II piston refrigeration compressors and compressor <BR> <BR> Article 2.2.1 of the specification, a single compressor is no common base, the factory is not linked with the motor .compressor; compressor is compressor, motor and other accessories at the same base, the factory did not constitute a complete refrigeration system units, including condensing units. .This section of the disintegration of the provisions of the compressor factory, is the assembly of the compressor body shall implement the provisions of relevant specifications, the commissioning of the content is still relevant contents of this section shall be implemented. .<BR> <BR> Article 2.2.2 installation to install the most basic level is required. .To prevent undetected phenomenon, so the separate development of this article. .<BR> <BR> Section 2.2.3 shall in connection with the compressor motor, the need to adjust the coupling or belt to come are the motor, general equipment, technical documents are provided, no provisions, should be the existing national standards " .Construction machinery and equipment installation and acceptance of universal norms "of the relevant regulations. .<BR> <BR> Section 2.2.4 load test run air compressors, air load test run, the compressor load vacuum test should be conducted before commissioning of an important commissioning content. .Commissioning early detection of these problems and resolve them, the load test run for the compressor to create a favorable investment conditions. .Medium and small open-type compressors, factory inspection should be after the commissioning, the installation should be checked to verify whether the commissioning of the records; of no record of the commissioning of the compressor, to ensure the quality of commissioning, it should be .commissioning of the provisions of this section. .<BR> <BR> Large factory or the disintegration of the compressor, the commissioning of the factory were not carried out, it should be called for the commissioning of this section. .Fluoride system for semi-hermetic compressors, due to factory test requirements and internal residual water requirements are very high, on-site installation work is generally not conducted such tests. .Compressor vacuum test, the unit is the compressor vacuum test. .<BR> <BR> Section 2.2.5 makes clear its test run before the qualifications and necessary inspection matters, to prepare for the test run, to prevent the quality and personal accident. .<BR> <BR> Section 2.2.6 under the existing national standard "medium-sized single-stage piston compressor technology,", "medium-sized single-stage refrigeration compressor piston test method" and the current national standard "stand-alone two-stage piston .Refrigeration Compressors, "the relevant provisions of the empty load the necessary technical requirements of commissioning and inspection of the project made it clear that the purpose is to check the equipment for air load test run, the operating conditions and the site conditions are normal, while making the movement .site co-produced by running for the load test run with a good foundation. .Article <BR> <BR> Section 2.2.7 under the existing national standard "medium-sized single-stage piston compressor test" of the relevant provisions of the revised air compressor load commissioning requirements. .Temperature rise of various parts of the compressor for the same time, in terms relative to the ambient temperature; on the main bearing, outer side, outer side of the seal temperature is generally available Points thermometer to measure. .Section 2.2.8 <BR> <BR> vacuum test article for the commissioning process should be carried out. .Among them, the crankcase pressure, oil pressure and other values with reference to the current national standard "medium-sized single-stage refrigeration compressor piston test methods" in the relevant regulations. .<BR> <BR> Section 2.2.9 for the compressor section of this section the provisions of the load test run, refer to the current national standard "medium-sized single-stage piston compressor technology," the relevant provisions. .Freon compressor which should be heated before the start of the oil in the crankcase, which aims to allows the dissolved oil in the freon in the separation, to improve the efficiency of lubrication and cooling, heating equipment, the temperature should be the requirements of technical documents; open compressor operation .when seal permeability at a certain amount should be, but should not be greater than the specified value is good. .<BR>.