Also known as steady flow compensator, flow regulator and non-negative pressure tank.
PRO/E diagram of non-negative pressure tank
CAD dimension diagram of non-negative pressure tank
Function: realize the function of stabilizing voltage and current, without negative pressure function. Eliminate secondary air pollution
Vacuum suppressor:
Also called vacuum compensator, it is an important part of non-negative pressure water supply equipment. Installed on the non-negative pressure tank of the equipment, the vacuum generated by the equipment water pump at the water inlet can be eliminated, so that there is no negative pressure at the water inlet of the equipment, and the equipment can be directly connected in series to the municipal pipe network for direct water supply.
PRO/E diagram of vacuum suppressor
CAD diagram of vacuum suppressor
The lip-shaped double-seal vacuum suppressor solves the problems of lax sealing and low-pressure water leakage of the existing vacuum suppressor. The central hole of the flange is connected with the sleeve structure through threads, the inner hole of the sleeve structure is connected with the hanger bracket through threads, the upper part of the hanger bracket is provided with air holes, the center of the hanger bracket is provided with a guide sleeve, the hanger bracket is connected with a floating ball through the guide sleeve, the lower part of the outer side of the hanger bracket is provided with an annular groove, a lip seal ring is embedded in the annular groove, the outer side of the lip seal ring is matched with the conical surface of the lower end of the sleeve structure, the inner side of the lower end of the hanger bracket is provided with an arc belt matched with the floating ball, the side wall of the sleeve structure is provided with air holes, The invention has the advantages of simple structure, convenient installation, reliable sealing and sensitive gas supply.
& gt stainless steel water pump
Granfu water pump
PRO/E diagram of stainless steel water pump explosion diagram of stainless steel water pump
1, vertical pipeline multistage centrifugal pump
2、
CR series (Cr, CRI, CrN&; CRT) is a non-self-priming, vertical pipeline multistage centrifugal pump. Its pipeline structure ensures that the pump can be directly installed in the horizontal pipeline system with the same horizontal line, the same diameter and the same inlet and outlet. This design makes the structure and pipeline of the pump more compact. The pump body is made of 304, 3 16 stainless steel and titanium alloy. The standard is vertical installation (horizontal installation pump type can be provided for special requirements).
2.MG motor
Better matching with the pump body, low noise, high efficiency and maintenance-free.
V-type "double locking" drive end bearing can bear higher inlet pressure;
V bearing "lubrication" adopts high-quality grease, which greatly reduces the maintenance cost;
V motor bearing is replaced by 63xx-C4 or angular contact bearing, which prolongs the service life of standard motor bearing;
3. Support flange
It can be applied to any standard motor, and the supporting flange has ball bearings.
Ensure that the tapered bearing is not damaged, allow higher inlet pressure and avoid maintenance.
4. Container shaft seal
Balance packing shaft seal, all parts are assembled together, there is no axial movement,
Do not wear the shaft and rubber parts. It has the characteristics of quick replacement, convenient installation and safe operation.
5, laser welding impeller
Adopting the most advanced compact laser full welding technology,
Put an end to spot welding and ensure the high strength and efficiency of the impeller.
6. Pump head
Casting pump head:
V CRI/CRN all stainless steel
V-type connectable sensor
V. no crack (corrosion)
V. No welding (corrosion)
7. Base (CRN)
Casting base: all stainless steel, no weld and groove (corrosion),
The best ability to adapt to pipeline stress and different pipeline connections,
Optimum efficiency and air handling.
8, lengthen the coupling
When the motor is larger than 7.5 kW (about 35 kg),
Extend the coupling to ensure that the motor does not need to be moved when replacing the shaft seal.
Ensure convenient and fast maintenance.
9, reliable dry rotation protection device
You can choose the patented dry rotation protection device LiqTec.
Greatly reduces the failure caused by dry rotation of the pump, and is easy to install.
Reliable operation and low cost.
10, outer cylinder seal
O-ring seal makes the pump insensitive to pressure pulsation and temperature fluctuation.
3. 10 rotating parts
The multi-stage impeller locking design minimizes the gap between the impellers at all levels and improves the hydraulic efficiency of the impellers.
1 1, flexible connection form
Multi-purpose flange:
German Bureau of Industrial Standards /JIS/ American National Bureau of Standards
Elliptical flange:
Internal RG thread
PJE (victorian)
Flexible fixture
Basis:
1. Movable connecting flange, which can connect DIN, JIS, ANSI or other standard flanges.
2. When replacing the original vertical water pump, provide accurate gaskets to avoid changing the pipe height to install a new CR water pump.
3. There are pressure measuring points at the entrance and exit, which can measure the pressure difference and can also be used as the drainage outlet, which is convenient to arrange the drainage outlet according to the site.
4. The screw of the static bottom bearing is fixed, which is convenient to replace and has a very low position, ensuring sufficient water lubrication.
5. The surface is treated by electrophoresis, and the protective film completely penetrates into the cast iron, which is more corrosion-resistant than ordinary painting or electroplating and ensures that it will not rust all the year round (the pump head and motor adopt the same advanced technology).
Pump housing:
1. The rotating bearing screw on the shaft is fixed and easy to replace;
2. The shaft is represented by the first stage impeller, which is convenient for installation.
3. Impeller and shaft are fixed with stainless steel tapered bolts, which is convenient for disassembly. The head of single-stage impeller can be selected as required, and the impeller mouth ring is protected by stainless steel neck ring, which is easy to replace.
4. The thickness of the impeller is small, reaching the same lift, the height of the water pump is reduced by 20% on average, the thickness of the impeller cavity is reduced, the performance and efficiency of the water pump are improved, and the same motor power can do work.
5. Greater water capacity. According to different working points, it is 30% higher than other brands on the market.
6. The support bearing (axial direction) in the impeller cavity is made of synthetic graphite, which has good anti-rotation and anti-vibration performance.
7. The radial bearing in the impeller cavity has a bronze/synthetic graphite combination on the static cavity and tungsten carbide on the rotating shaft, and the hard surface is in contact with the soft surface to ensure the maximum wear resistance.
10. The impeller cavity is provided with a fixed stainless steel sealing ring and a floating PTFE sealing ring at the impeller mouth ring to prevent water from flowing back. The sealing ring protects the transportable solid particles and prevents the particles from rotating in the impeller cavity and wearing the cavity.
1 1. The standard full-lift impeller can be tied together with the semi-lift impeller through a strap, which can flexibly meet the customer's requirements for lift.
12. The connection between the pump base, the pump head and the impeller cavity is fixed with self-tightening screws, which is convenient for disassembly.
13. The shaft related to the balance of water pump is processed by a large CNC machine tool center, and the material is 3 16 stainless steel to ensure uniform stress and corrosion resistance during use. Impeller is made of stainless steel, laser welded, light weight and high efficiency.
Pump head:
1. The pump head and pump housing cavity are fixed with self-locking screws, which is easy to fix and disassemble.
2. After sealing and fixing, the grinding surface is completely lubricated by water after exhausting. And is fixed below the sealing surface.
3. The drain hole of the pump head can be connected with a drain pipe, and is provided with a sensor mounting hole and a high-temperature safety exhaust valve.
4. The pump head is separated from the motor base, which is convenient for maintenance.
Motor seat:
1. The coupling shield can be inserted into the cooling water pipe, and the double seal is used for cooling, flushing and cooling.
2. The seal is equipped with a positioning fork, which can adjust the height of the seal and facilitate accurate installation.
Seal:
1. Rolling seal, easy to install and adjust.
2. There are many kinds of materials for container shaft seal to choose from for different purposes.
3. The spacer coupling is easy to replace.
Motor:
1. High efficiency motor with built-in thermal protector. Heavy load bearing system. The friction system is small, which ensures the long life of the motor. The patented design of motor fan has low noise.
2. The motor is equipped with lifting rings to facilitate the movement of heavy water pumps.
Stainless steel pipe valve
Component name: stainless steel pipe valve
Component specification: DN50——DN300
Velocity: 1.0m/s-2.0m/s
Flow: 3.0 m3/h-120.0 m3/h
Component material: SUS304 stainless steel
First-class welding technology, coupled with high-performance matte stainless steel surface treatment technology, ensures that the equipment
Internal and external consistency
-The symbol of high quality of water supply equipment in Zhongxue.
air pressure tank
It can effectively smooth the pressure fluctuation in the water system and reduce the start-stop times of the water pump.
The diaphragm structure in the tank body ensures that water does not contact with the tank wall, so there is no corrosion inside the tank wall and no condensation outside, and the service life is greatly prolonged.
The rubber diaphragm can be relaxed for more than 200,000 times and can be used for a long time after being inflated.
It can effectively smooth the pressure fluctuation in the water system and reduce the start-stop times of the water pump.
Diaphragm is food-grade natural rubber diaphragm, which can be used in drinking water system.
Effectively prevent water hammer phenomenon.