Stripping liquid turbine pump
A technology of turbo pump and air stripping liquid, applied in the direction of pump, pump element, non-variable-capacity pump, etc., can solve the problem of unutilized potential energy of pressure difference and so on
Active Publication Date: 2017-04-12
HUBEI SANNING CHEM
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Problems solved by technology
[0002] In the process of chemical production, high-pressure liquid is often produced. For example, most urea production processes in China use CO 2 Stripping process. In this process, the outlet pressure of the extract liquid in the stripping tower is as high as 14.6MPa, while the pressure of the general distillation tower is less than 0.4MPa. After entering the rectification tower, the evaporation cycle is carried out; in the prior art, the decompression process is generally carried out through a high-pressure regulating valve and a throttle tube; the potential energy of the pressure difference has not been utilized
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[0034] Such as figure 1 As shown, a gas-lifting liquid turbine pump includes a pump body 1 and a main shaft 4 installed in the pump body 1, a shaft sealing device 10 is installed at both ends of the pump body 1, and two chambers are arranged in the pump body 1 , are the first-level chamber 21 and the second-level chamber 31, the vanes include the first-level vane 2 and the second-level vane 3, the first-level vane 2 is located in the first-level chamber 21, and the second-level vane 3 is located in the second The primary chamber 31, the main shaft 4 passes through the primary chamber 21 and the secondary chamber 31 in turn, the primary vane 2 and the secondary vane 3 are connected to the main shaft 4, and the liquid extraction inlet 6 is located in the first chamber 21 On, the liquid extraction outlet 7 is located on the second chamber 31;
[0035] Preferably, the shaft sealing device 10 is a carbon dioxide dry gas sealing device.
[0036] A heat preservation channel is arra...
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A gas extract turbine pump comprises a pump body and a main shaft mounted in the pump body. An extract inlet and an extract outlet are formed in the two sides of the pump body. Shaft sealing devices are mounted at the two ends of the pump body. A plurality of chambers are formed in the pump body, and the main shaft penetrates through the chambers in sequence. Balancing devices are arranged on the portions, between the adjacent chambers, of the main shaft, and the adjacent chambers are communicated with one another. Vanes are arranged in all the chambers, and the adjacent chambers are communicated through connecting pipelines. The extract inlet is communicated with one chamber, and the extract outlet is communicated with the other chamber. The gas extract turbine pump has the advantages that hydraulic pressure of extract in the urea producing process and pressure of similar high-pressure liquid can be reduced, and differential pressure potential energy generated by the urea extract can be transferred into kinetic energy at the same time.
Description
technical field [0001] The invention relates to the field of fluid conveying equipment, and relates to a gas-lifting liquid turbine pump using high-pressure liquid. Background technique [0002] In the process of chemical production, high-pressure liquid is often produced. For example, most urea production processes in China use CO 2 Stripping process. In this process, the outlet pressure of the extract liquid in the stripping tower is as high as 14.6MPa, while the pressure of the general distillation tower is less than 0.4MPa. After entering the rectification tower, the evaporation cycle is carried out; in the prior art, the decompression process is generally carried out through a high-pressure regulating valve and a throttle tube; the potential energy of the pressure difference has not been utilized. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a gas-lifting liquid turbo pump, which can decompress the hydra...
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IPC IPC(8): F04D31/00F04D29/10F04D29/041F04D29/58F04D29/00
Inventor 李万清魏天荣肖昌润蒋鑫华
Owner HUBEI SANNING CHEM