1, drainage and heating quota
(1) Division of station-type pipeline and indoor pipeline: external wall skin of station or machine room first.
(2) Division of indoor and outdoor pipelines: the external wall skin of the building is1.5m.
(3) Division of outdoor pipeline and municipal pipeline: steel pipe DN 150 municipal; Seamless steel pipe φ 159 municipal; Cast iron DN250 municipal.
(4) Operating height: superelevation coefficient >; 5m refers to the distance between the installation height of the working object or equipment and the ground on the same floor. Base: man-days * superelevation coefficient.
(5) Ultra-high cost of high-rise buildings: cornice height; 25m, charging base: labor cost * super high-rise building cost.
(6) Commissioning fee of heating system: labor cost per unit project * 14% (excluding heat source fee), of which labor cost accounts for 78% of the commissioning fee.
(7) Scaffolding usage fee: unit engineering labor fee * 2%.
2. Indoor pipes
Understanding: pipeline pressure, material and connection mode are different.
(1) Pressure of pipeline chamber: the lower layer can be tested once; High-rise building layered pressure test, single pressure test, system pressure test and concealed engineering, etc.
(2) Low-pressure galvanized steel pipe (threaded connection) shall be clamped in DN32, including.
(3) The low-pressure galvanized steel pipe (welded) does not contain supports and hangers, but the pipe fittings are included (finished product: elbow, field processing: tee opening).
(4) The low-pressure galvanized steel pipe (flange connection) needs to be galvanized twice, excluding flange parts and expenses.
(5) Water supply and drainage, fire fighting and gas are connected by grooves (clamp connection); Mechanical or perforated connection: commonly used for tee joints; Pipe fittings: grooved connection.
(6) Cast iron pipe for water supply: it is often used for buried pipelines (cast iron pipe has greater mechanical strength and corrosion resistance than steel pipe).
(7) Drainage cast iron pipe: connected horizontally; Six-story urinals or high-rise buildings must be equipped with auxiliary ventilation pipes. Auxiliary exhaust pipe fittings, exhaust cap and riser inspection port are included in the quota in the form of content, and need not be calculated separately.
(8) Flexible drainage cast iron pipe: rubber flange interface type A; W-hoop connection
(9) Aluminum-plastic composite pipe: brass pipe fittings are connected or jacketed, and the pipe fittings are threaded. Aluminum-plastic composite pipe and PVC-U water supply plastic pipe have included the installation fee of pipe fittings and steel-plastic transition joints, but they are not the main materials, and the content is 1.05438+0. Aluminum-plastic composite pipe DN32 contains pipe clips.
(10) U-PVC drainage plastic pipe fittings already include: exhaust cap, expansion joint, vertical inspection port and toilet connecting pipe (squatting pan) without separate calculation; Fire rings or fire sleeves shall be provided separately.
(1 1)PPR pipe: threaded connection shall be subject to galvanized steel pipe subtitle; Glue UPVC water supply plastic pipe; Hot-melt welding shall be carried out in Chapter 8 "Electric Melting of PE Pipe of Gas Pipeline".
3. Budget price
(1) The budget price of materials consists of three parts: supply price, storage fee and purchase fee. The supply price consists of the following parts: foreign freight, packaging fee, handling fee of supply and marketing department and appearance fee.
(2) The price in the cost information refers to the price delivered to the construction site, but does not include the 2% storage fee.
(3) Preparation of mechanical machine-team expense quota: depreciation expense (recovering its original price within the specified scope of use) and overhaul expense (overhaul expense and maintenance expense).
(4) The project cost includes: direct cost, enterprise management fee (excluding medical care and pension of the project department), profit and tax. Direct costs include: labor costs, materials costs, machinery costs and site management fees (including temporary facilities costs and site funds).
4. Outdoor pipeline
(1) new and old pipeline interface: the heat source adopts 12 outdoor heat source pipeline interface; The water supply pipeline adopts 13 outdoor water supply cast iron pipe and three-way water source joint.
(2) Sand filling: It is only calculated according to the design requirements, and it is not necessarily applicable to directly buried insulation pipes and directly buried pipelines.
5. Station pipeline
(1) Rolling welded pipe fittings: low-pressure rolling welded pipe fittings are installed in finished products to supplement the main materials; On-site fabrication and processing of low-pressure rolled welded steel pipe fittings need not be supplemented with main materials.
(2) Various pipe fittings processed on site, including drilling tee on the main pipe, broken reducer, etc. , should be associated with the corresponding Buddhism, pipe fittings advocate material fee shall not be calculated. When the branch pipe diameter of the drilling tee is less than 1/2 of the main pipe diameter, the pipe fittings shall be specified according to the branch pipe diameter; When the branch pipe diameter is greater than the main pipe diameter 1/2, the pipe fitting specification shall be applied according to the main pipe diameter.
6. Valves and flanges
Pressure reducing valve group: pressure reducing valve, valve, bypass pipe, elbow, pressure gauge, etc.
7, sanitary ware
(1) squatting pan: If UPVC drainage pipe is used, the connecting pipe of squatting pan is included in the joint.
(2) Toilet: In the case of post-drainage, only one toilet soft joint (between the pipeline and the toilet) is installed.
(3) urinal: the flushing water tank shall be made according to Chapter 9. Flushing water tank support shall be carried out in Chapter 13 "Manufacture of Equipment Support".
(4) Civil mop pool: water tap and floor drain shall be installed for floor installation; Desktop executive nozzle and drain plug with trap; The washbasin cabinet is equipped with a faucet without a trap and a drain plug; The multi-tap cleaning tank is equipped with a plurality of water nozzles and a drain plug with a trap. If there is a floor drain, you can install a water nozzle, a drain plug without a trap and a floor drain.
(5) Install a water tap at the interface of the washing machine, and replace the main material: the washing machine faucet.
(6) For the installation of multifunctional floor drain and bathtub drainage water storage box (cabinet), refer to the corresponding subtitle of three-purpose drainer installation.
(7) The horizontal cleaning port is used for cleaning the water outlet (a cleaning water outlet must be set for connecting two or more urinals or three or more water appliances).
(8) The riser inspection port, exhaust cap and expansion joint are included in the contents of pipe fittings, and need not be calculated separately.
(9) Suspended spacer tows (supports) shall be calculated separately.
(10) The equipment trailer needs to be painted with metal brackets.
8, heating appliances
(1) cast iron radiator: generally, it needs to be assembled on site, and the installation is unclear, so the same subtitle should be implemented. Each group has enough plates on the ground and not enough plates. There is no pretense, only China movies.
(2) Floor radiator: 14, 2 with feet, 15-20, 3 with feet.
(3) When more than 20 cylindrical cast iron radiators are installed in each group, support is required, and the support cost shall be calculated separately. Making installation Buddhism with metal bracket with φ6 round steel.
(4) The interface sealing materials listed in the quota shall be prepared according to the finished rubber gasket, and shall not be adjusted if they are inconsistent with the design.
(5) Steel enclosed radiator: generally refers to finished products, mostly suspended, unit: finger group, and the installation of towing hook is included in the quota. If the bracket is completed, the main material does not contain the traction hook, and the traction hook will be paid separately. The drain valve plug has been included in the quota. If a manual drain valve is installed, it should be installed.
(6) High-frequency welded finned tube radiator: the quota includes the installation cost of the protective cover, but does not include its own value.
(7) Multi-column steel pipe radiator: It can be used for hot water or steam, such as Sende radiator.
(8) Radiation convection radiator installation, whether hanging installation or floor installation, shall be carried out according to the same quota, and the floor installation bracket shall be prepared with the advocate material.
(9) Smooth tube radiator: Type A and Type B are manufactured and installed, and the amount of header is included in the quota, which is not calculated separately.
(10) Gas collecting tank and automatic exhaust valve: used at the highest point of hot water heating system, and the valves and exhaust pipes on it are calculated separately.
(1 1) Installation of air heater: bracket fabrication and installation are not included. In Chapter 13, it is made and installed according to equipment bracket.
(12) Low-temperature radiant floor heating: According to the laying method, the specifications are calculated in meters. Generally, there can be no pipe fittings, and the quota does not include thermal insulation network and civil engineering calculation. The quota has included the ground pouring and construction. When aluminum-plastic composite pipes, polybutylene pipes, polypropylene pipes and polyethylene pipes are used as floor heating pipes, this project will be implemented.
(13) The debugging cost of heating system shall be calculated separately and included in the charging.
9, fire control system
(1) Location of pressure relief orifice plate: the hydrant is connected by non-union, the hydrant is connected by flange and the hydrant is connected by rear. Flange installation shall be calculated separately.
(2) The outdoor underground fire hydrant shaft shall be executed according to the civil engineering quota in Volume 1. ..
(3) When installing the gas-driven pipeline, the number of ferrule joints shall be calculated separately according to the design drawings.
(4) The bracket support of storage device shall be calculated separately, and the corresponding subtitle of equipment support in Chapter 13 shall be implemented.
(5) In the installation of storage devices, the quota has included the installation of storage devices such as fire extinguishing agent storage containers, system components, safety valves and valve driving devices, and nitrogen pressurization (mechanical and electrical contact person of official WeChat account). The installation of nitrogen dioxide storage device does not need gas pressurization, and pure nitrogen should be deducted when quota is implemented, and other things remain unchanged. 10, natural gas pipeline
(1) Polyethylene pipes: PE pipes and fittings shall be calculated separately. Connection mode: small diameter electrofusion; Large diameter hot melt.
(2) The connection of polyethylene pipe fittings is suitable for the connection of various pipe fittings such as polyethylene tee, elbow, pipe plug, reducer and casing.
(3) Steel-plastic transition joint: the same sub-item should be implemented whether it is threaded connection, welding or flange connection; When flange is connected, the value of flange itself is calculated separately, and bolts are calculated according to the consumption of design drawings and the loss rate of 3%.
(4) PE pipes within φ3 15 of gas pipelines shall be implemented according to Chapter 8 of gas pipelines, and gas wells shall be charged according to Volume I of construction projects; Φ 315 outer PE pipe is used as a supplementary project, and municipal pipelines are used for gas wells.
1 1, low pressure vessel
(1) The assembled water tank includes the fabrication and installation costs of the steel chassis, and other equipment supports shall be calculated separately.
(2) Frequency conversion water supply device: the pressure controller in the pneumatic tank is provided randomly, and the flexible joint in the frequency conversion pump set is included in the main material price, otherwise it will be calculated separately.
(3) The equipment to be insulated shall be executed according to the equipment insulation quota subtitle.
(4) Grouting between equipment and foundation generally refers to secondary grouting.
(5) Manufacture and grouting of anchor bolts: If the equipment comes with anchor bolts and grouting; If the equipment is not carried, the equipment anchor bolts shall be used for manufacturing and grouting.
(6) Off-site transportation: generally used in conjunction with water tank production. If it is a finished product installation, the cost will be included.
12, boiler
(1) If it is a gas-fired boiler, the light fuel oil used in the boiler and overflow boiler should be converted into gas.
13, pump and shock absorption
(1) If the pump is not equipped with anchor bolts, the pump shall be manufactured and installed according to the anchor bolts.
(2) Damping connecting plate.
I believe that after the above introduction, everyone has a certain understanding of the rules and precautions for the calculation of installation project cost quota. Welcome to Zhong Da for more information.
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