Fresh air pre-cooling dehumidification or pre-heating humidification can be completed, instead of the pre-cooling/ heating box of the central air conditioning system, providing simple air conditioner structure and cost-effective running;
- Q:The car water pump is broken. What are the symptoms?
- China water pump trading network for you to answer: car water leakage symptoms are mainly 1, leakage (water leakage is minor and serious), slight leakage, only in the water pump ventilation holes left on the traces of coolant color. Serious is the direct cause of higher temperature Water Leakage, symptoms of a lack of cooling liquid; 2, the weak ability of circulating pump circulation: if the ability is weak, will appear high temperature phenomenon, especially in the southern summer is more obvious; 3, abnormal sound; if the water pump bearing internal problems, abnormal noises in the belt drive that may be slight, you did not find.
- Q:Power flow conversion of water pump
- Pump shaft power (kw) = water supply (L / s) x lift (m) /102 * efficiency = flow * lift * density * acceleration of gravity.Explanation:102 is the unit collation constant.Pump effective power / pump shaft power = pump efficiency (general 50%--90%, large pump higher)Unit time pump liquid volume flow is, flow by Q, a unit of measure: m3 / h (m3/h), L / S (l/s), L/s=3.6 m3/h=0.06 m3/min=60L/minG=Q G refers to weight - liquid proportionThe energy obtained by pumping a liquid of a unit weight is called a lift. The pump head, including suction stroke, is approximately the difference between the pump outlet and inlet pressure. The lift is expressed in H, and the unit is m.The efficiency of a pump is the ratio of the effective power to the axial power of the pump. ETA =Pe/P pump power usually refers to the input power, the motive power to the pump shaft, it is also called the shaft power, denoted by P. Effective power is the product of pump head and mass flow and gravity acceleration
- Q:Fire pump control cabinet installation distance, ground height should be how much?
- The ground height shall be determined according to the height of the connecting line at the bottom of the control cabinet and the water pump, usually 15~20CM.
- Q:Why can't sprinkler system and hydrant system share water pump in fire fighting system?
- The design code of sprinkler system GB 50084 - 2001 (2005 Edition) stipulates that the sprinkler system shall be provided with an independent water supply pump, that is, the water pump shall not be shared with the hydrant system. The aim is to ensure the reliability of the water supply and prevent interference.See the code for design of automatic sprinkler system, GB 50084 - 2001 (2005 Edition), 10.2.1 and the corresponding provisions of the following interpretation.
- Q:Water pump is not Sheung reason
- The problem you are experiencing is stressThe above answer is only considered in the case of water absorptionJust imagine, two pumps are normal work, the same suction pipe, how can there be dissatisfaction with water or vacuum state?.According to my experience analysisYour system is three sets of parallel, lift and flow should be the same, if not the same, not in this discussion, the topic should be set up.Lift is the same, that is, in two or three units at the same time, the resulting system pressurization is the same, and water will increaseBut now your traffic is increasing at two units, but it will not increase at threeYou have selected pipeline system design, in the design of head flow under single condition is constant, if the increase in open water pump, the pressure is constant, increasing water content, according to the continuity equation Q = A X V, then the flow velocity in the tube will increase;But when the third pumps, 2Q becomes 3Q, normally velocity should be larger, but the Darcy formula shows that the velocity increases, extension resistance and local resistance will be increased, and the double square, so you can open third pumps for reasoning, when the resistance effect caused by the pipeline the increase of water flow in the pipeline can not be reused, the general formula of constant current, now the whole pipeline in turbulent stateThat is, third pumps to do the work in the water and pipe wall friction in the loss, and actually did not play a role in water supplyThe solution is to increase the flow rate by increasing the water supply pipeline
- Q:4--6 inch deep well pump head? How much per hour out of water?.
- General agricultural pump 4-6 inches of lift at about 20 meters, the economic output of water is 140-200 cubic meters per hour
- Q:What are the quota items for the complete pump installation?
- Pump installation / anchor bolt installation anchor bolt hole, fill oar vibration cushion installation
- Q:What is the reason that the centrifugal pump outlet pressure decreases and the operating current increases?
- See if the impeller problem is loose or something else. Impeller problems are generally
- Q:Water pump mutual switching device
- The main purpose of the control is to make sure that the pump outlet has a nominal pressure.Control requirement: 1. Start single pump manually.2, two pumps should alternate.3, the pump exports to achieve certain pressure, the normal operation of the motor, and the pressure is too low, the operation is meaningless.Device: AC contactor, intermediate relay, etc..Principle: 1, detect a pump fault (usually take the motor main contactor, auxiliary contact), interlock another pump to start.2, pump outlet pressure detection device detects low pressure, can start another pump at the same time, to ensure the normal export pressure!
- Q:What is called soft start of water pump?
- Soft start is a form of electronic control, mainly through the soft drive to achieve. Principle: the former contactor is directly started as contactor, first pull in, and the device is started by soft driving. Soft start device start smoothly, starting current is small, control system life is long. Soft start is now in widespread use. But the use of high-power equipment is less, the general current is less than 120A.
1. Manufacturer Overview
|Annual Output Value
||Below US$1 Million
2. Manufacturer Certificates
|a) Certification Name
3. Manufacturer Capability
||41% - 50%
|No.of Employees in Trade Department
||Above 100,000 square meters
|No. of Production Lines
||OEM Service Offered；Design Service Offered
|Product Price Range