Method for reducing air suction quantity of twin-screw rod expander and twin-screw rod expander
A twin-screw expander, suction capacity technology, applied in the direction of machine/engine, mechanical equipment, engine components, etc., can solve the problems of increasing manufacturing and design costs, prolonging product investment cycle, loss of manufacturers and users, etc. Productivity, Vibration and Noise Reduction, Economical Effect
Active Publication Date: 2015-06-17
SHANGHAI QIYAO EXPANDER
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Problems solved by technology
In actual use, the expander model is divided into several gears according to the size of the rotor and the length-to-diameter ratio to adapt to different inlet conditions. Existing expander models cannot meet this situation
In order to adapt to the inlet flow rate different from the usual working conditions, it is usually necessary to manufacture a new model, and the rotor cutter must be redesigned to manufacture a new model. The cycle of designing a cutter is generally 3-6 months, which will greatly Increase manufacturing and design costs, and prolong the product investment cycle, which is a loss for manufacturers and users
Method used
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Embodiment Construction
[0017] The present invention will be further described below in conjunction with the accompanying drawings.
[0018] Please refer to Figure 1 to Figure 5 . A method for reducing the suction capacity of a twin-screw expander according to an embodiment of the present invention includes the following steps:
[0019] Reduce the length of the thread section of the male rotor and the female rotor of the twin-screw expander;
[0020] A lead block is installed on the end face of the exhaust end seat of the twin-screw expander facing the cylinder block, the structure of the lead block 1 is as follows figure 1 shown. In a preferred embodiment, the lead block 1 is detachably connected to the end surface of the exhaust end seat 2 of the twin-screw expander, preferably, the lead block 1 is connected to the exhaust end seat 2 through a screw 9 The end faces are connected to each other, and the screw 9 can be an inner hexagon screw. The lead block 1 comprises a first half 1a and a seco...
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The invention discloses a method for reducing an air suction quantity of a twin-screw rod expander which comprises an air inlet end seat, an air cylinder body, an air discharge end seat, a male rotor and a female rotor. The method comprises the steps of reducing length of the screw thread segments of the male rotor and the female rotor, and mounting a lead block on an end face of the air discharge end seat, wherein the end face of the air discharge end seat faces to the side of the air cylinder, the lead block comprises a first half part and a second half part, the first half part is provided with an outer side facing to the male rotor and an inner side facing away from the male rotor, the second half part is provided with an outer side facing to the female rotor and an inner side facing away from the female rotor, and the inner side of the first half part and the inner side of the second half part are connected. The invention also provides a twin-screw rod expander realizing the method. The method for reducing an air suction quantity of a twin-screw rod expander and the twin-screw rod expander are characterized in that the air suction quantity of the expander is reduced on the basis that a shell body structure and a rotor machining cutting tool of the twin-screw rod expander are not changed, and therefore manufacture cost is saved.
Description
technical field [0001] The invention relates to a method for reducing the suction capacity of a twin-screw expander and the twin-screw expander thereof. Background technique [0002] Secondary energy such as waste heat, waste heat and throttling losses generated in industrial production can be found in almost every energy-consuming industry, such as electric power, chemical industry, petroleum, metallurgy, mining, light industry, textile and other industrial fields. If this part of resources can be effectively recycled and utilized, it will save a lot of energy consumption for the enterprise. As a new type of waste heat recovery device, the twin-screw expander has been more and more widely used. In actual use, the expander model is divided into several gears according to the size of the rotor and the length-to-diameter ratio to adapt to different inlet conditions. Existing expander models just cannot satisfy this situation. In order to adapt to the inlet flow rate differe...
Claims
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IPC IPC(8): F01C1/16F01C21/00
Inventor 刁安娜王亚洲王键王宇
Owner SHANGHAI QIYAO EXPANDER