ZPB type gas and water jet pump assembly Introduction This device is used for large and medium-sized pumps do not install the bottom valve suction pump before driving, and more installed in the underground mine pump room. Use of pump room pressure water or compressed air as power, according to the principle of jet pump and suction tube to produce negative pressure and full of diversion, to achieve the purpose of bottomless valve operation. Pump suction pipe to remove the bottom valve, compared with the valve at the end, you can save 5 to 30%. According to the size of the working water pressure, the device points low pressure - D (≤ 1.6MPa), medium pressure - z (≤ 4MPa) and high pressure - G (≤ 10MPa) three. Compressed air or steam pressure is 0.2 ~ 0.5MPa. Composition ZPB jet pump assembly is composed of ZPB jet pump, valves, vacuum gauge, pipes and fittings. Model specifications due to different working medium pressure, and divided into different specifications. Model ZPBD Model ZPBZ Model ZPBG Working Medium Pressure Working Medium Working Pressure Water Kgf / Cm2-1616-4040-100 Pressure Gas Kgf / Cm2-52-52-5 Control Working Medium Valve Model J41-16J43 (53) H -40J43 (53) H-100 Model Meaning ZPB (DZG) Z --------- Assembly PB ------- Jet pump DZG ----- Working medium pressure D Low pressure 2-16kgf / C ㎡ Z medium pressure 16-40kgf / C ㎡ G high pressure 40-100kgf / C㎡ Installation and use According to the pump site, can be divided into single and multiple pumps to run the installation form. The installation of a single pump, each jet pump suction pump on the water suction on the water. Multiple pumps installed as shown. This type of installation of multiple pumps to use multiple jet pump, the main pumping station in the coal mine when the use of multi-working medium (ie high pressure water, compressed air, spare water) as the driving force, and multiple jet pump in parallel, each To spare, to do any jet pump, work can start any one pump, the realization of the underground central pump room to remove the pump at the end of the valve. Therefore, the installation form is called multi-power, multiple jet pumps in parallel, each other on the water system. Multiple jet pump in parallel diagram Note 1, the opening of small high-pressure valve: When using the cut-off valve should pay attention to the anti-valve open large, to prevent the small opening due to lack of water flow jet pump can not work; when using the plug valve to be careful slow Open, to avoid sudden opening caused by hydraulic impact and damage jet pump. 2, After the pump cancels the bottom valve, the gas-water balance of the pump should be led to the suction pipe. At the same time, it is required that the packing on the both sides of the pump should be airtight to prevent air-water pipe and packing root from entering the pump body during jetting work, thus affecting the water absorption effect . Structure diagram The following to Jinan Warwick Pump Co., Ltd. ZPB jet pump as an example: ZPBZ type gas and water jet pump 1280.00 yuan / station Material: Stainless steel; Drive: Manual; Flow: 1 m3 / h; Performance: Model: ZPBZ type ZPBZ jet pump (medium pressure) 1280.00 yuan / unit This device is used for large and medium-sized pump is not installed at the end of the valve before driving Suction and diversion, and more installed in the underground mine pump room. Use of pump room pressure water or compressed air as power, according to the principle of jet pump and suction pipe to produce negative pressure and full of diversion, to achieve the purpose of bottomless valve operation. Working Principle: Jet Pump Brand: Domestic Use: Pump Model: ZPB Material: Steel Pump Medium: Clean Water Pump Market: Jet Jet Pump Assembly Drive Method: Manual Pump Head: 5 Suction: 5 Power: 0.1 Electric Working Pressure : 380 Speed: 1400 Product Details ZPB jet pump In coal mines and chemical companies, often use some large and medium-sized centrifugal pumps, the power of these pumps is relatively large. For centrifugal pumps, the pump body must be filled with liquid (water) at start-up, which is what is commonly called plus water. In the pump before the transfer to allow the liquid stored in the pump body, in general, to install the suction valve in the centrifugal pump at the end of the valve must have a certain resistance, when the centrifugal pump long-term work, it will result in waste of energy , More power. Increase the ZPB jet pump, remove the bottom valve of the centrifugal pump, the use of pressurized water or compressed air as the power, according to the principle of the jet pump and suction tube negative pressure and let the pump body is full of diversion, to achieve the purpose of valve-free operation. ZPB jet pump uses ZPB jet pump for energy-saving products, generally used in coal mines, supporting the use of centrifugal pumps. Large and medium-sized centrifugal pump to remove the bottom valve after the use of jet pump, able to suction on the diversion, to achieve pump-free valve operation, both to reduce labor levels, but also to achieve significant energy-saving effect, the general tonne of water in 5% to 27% . ZPB jet pump composition ZPB jet pump is also known as dual-use jet pump, jet pump assembly by the jet pump, valves, vacuum gauges, pipes and fittings. ZPB jet pump model and specifications ZPB jet pump mainly has three kinds of specifications, low pressure (ZPBD type), medium pressure (ZPBZ type) and high pressure (ZPBG type) three, each using the pressure in the table below, the election You can consult Jinan Warwick Pump Co., Ltd. Working medium Type Pressure ZPBD type ZPBZ type ZPBG type Working pressure water Kgf / Cm22 ~ 1616 ~ 4040 ~ 100 Pressure gas Kgf / Cm22 ~ 52 ~ 52 ~ 5 Control working medium Valve Model J41-16J43 (53) H-40J43 (53) The installation of H-100 · ZPB type jet pump can be divided into single-type and multiple-pump installation depending on the pump use site. The installation of a single pump, each jet pump only on the pump supporting the suction and suction on the diversion. Multiple pumps installed in parallel, this form of installation of multiple pumps common use of each jet pump. Main pump room in the coal mine, the use of working medium (ie, high pressure water, compressed air, spare water) as a driving force, multiple jet pumps in parallel, each standby, so that any one jet pump can start any pump work , To achieve the underground pump house all removed the pump bottom valve. Said the form of installation for more power, multiple jet pumps in parallel to each other on the water system. · Precautions for use of ZPB jet pump 1, High-pressure valve opening precautions: A When using the cut-off valve should pay attention to the gradual opening of the valve, if the valve opening is too small may result in insufficient water flow, causing the jet pump does not work; B When using the plug valve should be slow to open, to avoid sudden opening caused by hydraulic impact and damage jet pump. 2, when the pump removed the bottom valve, the water should be led to the pump suction pipe, pump shaft at the same time require the packing does not leak, the pipeline sealed well, can not enter the gas. Otherwise it will affect the jet pump water absorption. [Editor's note] In addition to ZPB jet pump, the Asian Fluid Network follow-up will also launch more product interpretation articles and features, so stay tuned!
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