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Stable supporting structure of long shafting for seawater source heat pump

A technology for stabilizing supports and supporting structures, applied in heat pumps, rigid supports for bearing components, pumps, etc., can solve problems such as high prices, and achieve long service life, large load capacity, low vibration and noise

Inactive Publication Date: 2016-07-20
DALIAN DEEP BLUE PUMP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both domestic and international are accelerating the exploitation of LNG. The large-scale offshore natural gas floating storage and regasification unit (LNG-FSRU) is a new type of device integrating natural gas storage, transportation, regasification and unloading. It has a water depth adaptability range. Wide, mobile, and reusable, while the seawater source heat pump, as the core equipment of the LNG plant, has high technical content, is highly monopolized in the hands of a few foreign companies, and the equipment is expensive

Method used

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  • Stable supporting structure of long shafting for seawater source heat pump
  • Stable supporting structure of long shafting for seawater source heat pump
  • Stable supporting structure of long shafting for seawater source heat pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] like Figure 1-Figure 5 As shown, the seawater source heat pump uses a long shaft system to stabilize the support structure, including the support structure at the upper shaft seal, the middle support structure and the lower support structure connected in sequence; the upper support bushing 10 of the support structure at the upper shaft seal slides with the upper shaft 9 Connect and support the upper shaft 9; according to the needs of the working conditions, the middle support structure includes 4 middle support pipes 8 sleeved on the outside of the middle shaft 7, and the upper and lower parts of the middle support pipes 8 are provided with sliding connections to the middle shaft 7 The upper middle support bushing 6; the lower support structure includes a lower support tube 5 sleeved on the outside of the lower shaft 3, the lower side of the impeller of the lower shaft 3 is slidably connected to the lower support bushing 1, and the lower support bushing 1 supports the s...

Embodiment 2

[0026] The basic structure of embodiment 2 is the same as that of embodiment 1, and different technical parameters are required according to working conditions as follows:

[0027] 1) Set the number of intermediate support tubes 8 to 6;

[0028] 2) One support plate 4 is provided in the middle and the lower part of the full length of the pump support pipe to support it with the outer cylinder wall 11 . One end of one support plate 4 is supported with the outer cylinder wall 11, and the other end is bolted to the lower support pipe 5 to ensure the stability of the shell from the lower support pipe 5 to the suction section 2; one end of the other support plate 4 is connected to the outer cylinder wall 11. The other end is bolted and fixed with the intermediate support pipe 8 in the middle, which ensures the stability of the intermediate shaft 7 and the intermediate support pipe 8 .

[0029] The invention effectively reduces the deformation of the casing and enhances the stabili...

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Abstract

The invention relates to a stable supporting structure of a long shafting for a seawater source heat pump. The supporting structure comprises an upper shaft sealing location supporting structure body, a middle supporting structure body and a lower supporting body which are connected in sequence and connected with an upper shaft, a middle shaft and a lower shaft correspondingly. An upper supporting shaft lining is connected with the upper shaft. The supporting structure further comprises at least one middle supporting pipe and a lower supporting pipe, wherein middle supporting shaft linings connected to the middle shaft are arranged on the upper portion and the lower portion of the middle supporting pipe correspondingly; the lower shaft is sleeved with the lower supporting pipe in a connected mode; the lower shaft is connected with a lower supporting shaft lining; and at least one supporting board is arranged in the middle or on the lower portion within the whole length range of a pump supporting pipe. By means of the stable supporting structure, deformation of a crust is effectively reduced; the stability of the shafting is enhanced, and under the working conditions of marine floating tilting and swinging, each section of shafting is more stable; the stability of a pump unit is greatly improved; and due to the supporting effect of the supporting boards, the pump unit and a foundation are fixed effectively, and the stability of the pump crust and a long shafting pump is enhanced to a great extent.

Description

technical field [0001] The invention relates to a long shafting stable support structure for a seawater source heat pump, which can ensure the stable operation of the seawater source heat pump under the inclined and swaying conditions of the ocean floating type. Background technique [0002] In recent years, the proportion of natural gas in China's energy consumption has steadily increased. LNG (liquefied natural gas) is currently recognized as a clean energy source in the world. It has many advantages such as energy saving, environmental protection, safety, reliability, and outstanding economic benefits. Both domestic and international are accelerating the speed of LNG exploitation. Large-scale offshore natural gas floating storage and regasification unit (LNG-FSRU) is a new type of device that integrates natural gas storage, transportation, regasification and unloading. As the core equipment of LNG plant, seawater source heat pump has high technical content, is highly mono...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C35/10F04D29/044F25B30/06
CPCF16C35/10F04D29/044F25B30/06
Inventor 许文超曹天帅许重文闫小旭王军
Owner DALIAN DEEP BLUE PUMP CO LTD
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