Pump shaft sealing device for chlorine and hydrogen compressor
A technology for hydrogen compressors and sealing devices, which is applied to parts, pumps, and pump components of pumping devices for elastic fluids, and can solve the problems of reducing the stiffness of the liquid piston in the pump, insufficient pumping rate, and increased leakage. question
Inactive Publication Date: 2009-04-29
江苏力达机电有限公司
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Problems solved by technology
[0002] At present, in order to prevent the leakage between the pump casing and the pump shaft, the hydrogen chloride compressor always adopts a single end face mechanical seal. The disadvantages are: (1) The sealing effect is poor. When the pump is corrosive liquid, the corrosion of the leakage Sexual liquid will entrain solid impurities and roughen the sealing surface, resulting in increased leakage, equipment damage and environmental pollution; (2) Due to the poor sealing effect, the stiffness of the liquid piston (liquid ring) in the pump is reduced, resulting in Insufficient pump output
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[0008] specific implementation plan
[0009] The present invention will be described in further detail below in conjunction with accompanying drawings and examples.
[0010] exist figure 1 In the schematic structure diagram shown, the floating ring 5 and the floating ring 6 are axial floating rings, which are installed in the floating ring grooves processed on the inner surface of the pump body 7 and the outside of the pump shaft 1; the floating rings 12 and The floating ring 13 is a radial floating ring. The floating ring 13 is installed in the radial floating ring groove processed at the interface between the pump body 7 and the impeller 11. The floating ring 12 is installed at the interface between the impeller 11 and the pump cover 10. Machined radial floating ring grooves. When the pressure on the left and right sides of the axial floating ring 5 and axial floating ring 6 is equal, they are surrounded by the liquid in the pump and are in a non-working state; when the le...
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The invention discloses a sealing device for pump shaft of chlorine hydrogen compressor. One or a plurality of floating rings are disposed in a pump which adopts end surface sealing device to form floating ring and end surface combined mechanical sealing. When the pump has large pressure, the floating rings are pushed to cling to one side having lower pressure, so the floating rings can play certain sealing effect, the pressure applied on the end surface mechanical sealing is reduced because of the buffer of the floating rings in the pump, the end surface sealing can play reliable sealing effect, and the output rate of the compressor is improved. The sealing device for pump shaft of chlorine hydrogen compressor can be widely applied to the shaft seals of various pumps.
Description
technical field [0001] The invention relates to a sealing device for a pump shaft of a hydrogen chloride compressor, in particular to a device using an end face mechanical seal. Background technique [0002] At present, in order to prevent the leakage between the pump casing and the pump shaft, the hydrogen chloride compressor always adopts a single end face mechanical seal. The disadvantages are: (1) The sealing effect is poor. When the pump is corrosive liquid, the corrosion of the leakage Sexual liquid will entrain solid impurities and roughen the sealing surface, resulting in increased leakage, equipment damage and environmental pollution; (2) Due to the poor sealing effect, the stiffness of the liquid piston (liquid ring) in the pump is reduced, resulting in The output rate of the pump is insufficient. Contents of the invention [0003] The object of the present invention is to provide a sealing device, which can effectively overcome the leakage of the shaft seal of ...
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IPC IPC(8): F04D29/12
Inventor 张风梅
Owner 江苏力达机电有限公司