CN2864098Y - recoil liquid turbine - Google Patents

Abstract

The recoil type liquid turbine proposed by the utility model includes organic body [1], rotating shaft [4], rotating turbine [21], throttling expander [3], etc., wherein the throttling expander [3] is evenly distributed according to the coaxial circumference Installed on the rotating turbine [21], the outlet axes of each throttling expander are on the tangent of the same circle, and the inlet of the throttling expander is collected on the rotating infusion main pipe [7] with the infusion branch pipe [5] arranged according to the radial line. A fixed infusion main pipe [8] is connected to the coaxial counterpart of the rotating infusion main pipe, and the joint is sealed with a mechanical sealer [9]. Because the throttling expander of the recoil type liquid turbine is designed on the rotating turbine, the impulsive force generated by the wet steam ejected from the throttling expander completely reacts on the rotating turbine, so that the force direction and magnitude of the rotating turbine remain unchanged. So as to achieve the purpose of improving mechanical efficiency and running balance. Structurally, the moving blade cascade on the rotating turbine is eliminated, so that the rotating turbine has simple structure, convenient manufacture and low cost.

Description

recoil liquid turbine

Technical Field The utility model relates to a recoil-promoting liquid turbine, which belongs to an engine.

Background technology Increase the pressure of the liquid without changing the temperature difference of the liquid, thereby increasing the vapor saturation temperature of the liquid, let the high-pressure and high-temperature liquid pass through the throttling expander, a part of the liquid releases the pressure and expands to do work, and at the same time, a part of the liquid is expanding The flow rate increases under the action of the gas. Under this condition, the liquid steam turbine uses the huge flow rate of the wet steam at the outlet of the expander to drive the steam turbine to rotate and work. At the same time, the work of the liquid turbine is also based on the thermodynamic cycle of the working medium, that is, the liquid releases pressure step by step from the high-pressure and high-temperature end to perform work, and the steam of the same level heats the colder liquid in the cycle with the heat of vaporization. Combine, pressurize and heat from the lowest end to the highest end, and repeat. What the applicant has proposed before is the impulsive liquid turbine. The impulsive liquid turbine uses the high-speed wet steam at the outlet of the throttling expander to impact the moving blade cascade on the turbine to push the rotating shaft to rotate, and the throttling expander and the moving vane There is a certain distance between the grid and the blades on the moving blade cascade, so that the high-speed wet steam at the outlet of the throttling expander cannot transmit all the impulse to the moving blade cascade, and the distance between the outlet of the throttling expander and the blades The relationship changes with the rotation of the moving blade cascade, and the magnitude of the impulsive force on the moving blade cascade also changes accordingly.

Summary of the invention In view of the above defects, the utility model proposes a recoil type liquid turbine to solve the technical problem of loss and imbalance of the impact force of the impact type liquid turbine.

The recoil type liquid turbine proposed by the utility model is composed of a body, a rotating turbine installed on the body with bearings through a rotating shaft, a throttling expander that drives the rotating turbine to rotate, and a pipeline that delivers high-pressure and high-temperature liquid to the throttling expander. Wherein, said throttling expanders are evenly distributed on the rotating turbine according to a coaxial circle, the outlet axes of each throttling expander are on the tangent line of the same circle, and the inlets of the throttling expanders are provided with infusion branch pipes arranged radially. Collected on the rotating infusion main pipe, there is a fixed infusion main pipe coaxial with the rotating shaft to connect with the rotating infusion main pipe coaxially, and the joint is sealed with a mechanical seal.

The working principle of recoil liquid steam turbine: high-pressure and high-temperature liquid is sent into the rotating infusion main pipe through the fixed infusion main pipe, and the high-pressure and high-temperature liquid in the rotating infusion main pipe is distributed to each infusion branch pipe and rushed out from the expansion outlet of the restrictor. The recoil force acts on the rotating infusion pipe. Turn it on the turbine, and then drive the shaft to output torque.

In the recoil type liquid turbine proposed by the utility model, the body is a closed structure, and the rotating turbine is installed inside it. The lower part of the body has a liquid discharge port, and the upper part has a steam discharge port. Adjusting the gas-liquid discharge can control the liquid level in the body and the pressure difference inside and outside the throttling expander.

In the recoil type liquid turbine proposed by the utility model, the rotating shaft of the rotating turbine is vertically installed, that is, the rotating infusion main pipe is installed vertically, the infusion branch pipe is installed horizontally, and the rotating shaft is installed at the bottom of the rotating turbine.

The recoil type liquid turbine proposed by the utility model has a radial thimble supported on the rotating turbine on the elbow between the radial infusion branch pipe and the tangential throttling expander, and mainly bears the longitudinal expansion of the infusion branch pipe after being heated. force and centrifugal force during rotation to prevent the throttle expander from bending and deforming.

Recoil type liquid turbine, because the throttling expander is designed on the rotating turbine, the impulsive force generated by the wet steam sprayed from the throttling expander completely reacts on the rotating turbine, and the recoil force is used to drive the rotating turbine to run. At any moment during the rotation of the rotating turbine, the impulse force at the outlet of the throttle expander is constant, so the magnitude of the recoil force is also constant. The direction of the recoil force rotates with the rotation of the rotating turbine, so that the direction of the rotating turbine's force remains unchanged. So as to achieve the purpose of improving mechanical efficiency and running balance. Structurally speaking, compared with the impact type liquid turbine, the recoil type liquid turbine eliminates the moving blade cascade on the rotating turbine, which makes the structure of the rotating turbine simple, easy to manufacture and low in cost. In short, the recoil type liquid turbine has the characteristics of simple structure, compact operation, balanced operation and high mechanical efficiency. It can be made into miniature 1-5kg/s, small-scale 5-20kg/s, medium-sized 20-50kg/s, large-scale products with flow rates above 50kg/s, etc., and the working fluid can be made into water-use anti-impact liquid turbines , Anti-impact liquid turbine for ammonia, anti-impact liquid turbine for ethane, anti-impact liquid turbine for 1-butene, etc. The working fluids mentioned above are all introduced in impact liquid turbines, and a variety of working fluids can be designed for thermal cycles according to their thermodynamic characteristics, so as to further improve thermal efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front sectional view of an embodiment of the utility model;

Fig. 2 is a top sectional view of Fig. 1;

Fig. 3 is the front sectional view of another embodiment of the utility model;

FIG. 4 is a top sectional view of FIG. 3 .

Specific embodiments 1. As shown in Figures 1 and 2, in a body 1 formed by connecting the upper and lower shells, a rotating turbine 2 is installed, the rotating turbine is horizontal, and the vertical shaft for installing the rotating turbine is at the upper end Rotate infusion main pipe 7 and the power take-off shaft 4 of lower end to constitute. Both ends of the vertical shaft and the machine body are sealed with a mechanical seal, and the seal is filled with high-pressure lubricating fluid. There are four sets of infusion branch pipes 5 in the rotating turbine, which are vertically connected to the rotating infusion main pipe in a cross. The inlet of the throttle expander 3 is connected to the infusion branch pipe through a right-angle elbow. The outlets of the four throttle expanders point to the same rotation direction. . The throttling expander is composed of a throttling neck after the inlet and an expansion section before the outlet. The material is required to have high hardness, good wear resistance, smooth and clean processing, and the section of the expansion section should be a cone that expands gradually to reduce the liquid The resistance, the ratio of the section of the expansion port to the section of the throttle neck, can be designed according to the fluid temperature difference and expansion coefficient, and the outlet and the outer diameter of the rotating turbine are processed into the same curved surface. There is a thimble 6 between the elbow of the infusion branch pipe and the outer surface of the rotating turbine, which mainly bears the longitudinal expansion force of the infusion branch pipe after being heated and the centrifugal force received during the rotation process, so as to prevent the throttle expander from bending and deforming; On the extension line, there is the fixed infusion main pipe 8 coaxial with the rotating infusion tube. The outlet of the fixed infusion main pipe is opposite to the inlet of the rotating infusion main pipe and is sealed by double-sided mechanical seals. The fixed infusion main pipe is installed on the body through the seal seat. In the upper and lower parts of the body, there are steam outlet a and liquid outlet b respectively.

2. As shown in Figures 3 and 4, in a body 1 formed by connecting the upper and lower shells, a rotating turbine 21 is installed, the rotating turbine is horizontal, and the rotating turbine is a solid block composed of a cylinder and a circular frustum . There is an axial hole in the cylindrical part of the rotating turbine, in which the rotating transfusion main pipe 7 wrapped with a thermal insulation layer 10 is installed; there are also holes perpendicular to the axial hole and mutually perpendicular, and the axes of the three holes intersect at one point, in which the Four groups of infusion branch pipes 5 are vertically crossed and vertically connected with the rotating infusion main pipe. The outer mouth of the hole where the infusion branch pipe is installed is enlarged, and the inlets of four throttling expanders 3 are respectively connected to each infusion branch pipe through a right-angle elbow, and the outlets of the four throttling expanders indicate the same direction of rotation. The infusion branch pipe and the throttling expander are also wrapped with a thermal insulation layer 10 . The throttling expander is composed of a throttling neck after the inlet and an expansion section before the outlet. The material is required to have high hardness, good wear resistance, smooth and clean processing, and the section of the expansion section should be a cone that expands gradually to reduce the liquid The resistance, the ratio of the section of the expansion port to the section of the throttle neck, can be designed according to the fluid temperature difference and expansion coefficient, and the outlet and the outer diameter of the rotating turbine are processed into the same curved surface. The infusion main pipe, the infusion branch pipe, the elbow and the throttling expander are all connected with pipe screws. There is a thimble 6 between the elbow of the infusion branch pipe and the outer surface of the rotating turbine, which mainly bears the longitudinal expansion force of the infusion branch pipe after being heated and the centrifugal force received during the rotation process, so as to prevent the throttle expander from bending and deforming; On the extension line, there is the fixed infusion main pipe 8 coaxial with the rotating infusion tube. The outlet of the fixed infusion main pipe is opposite to the inlet of the rotating infusion main pipe and has a double-sided mechanical sealer to seal, and high-pressure lubricating liquid is injected in the sealer, and the fixed infusion main pipe is installed on the body through the sealer seat 9. Power take-off shaft 4, promptly the upper end of the vertical rotating shaft of turning turbine is installed on the axis of the circular platform part of turning turbine, and the lower end is installed on the body through two road bearings. In the upper and lower parts of the body, there are steam outlet a and liquid outlet b respectively.

Claims (5)

1, a kind of backflushing type liquid turbine, by body and through rotating shaft with the rotation turbine of Bearing Installation on body, drive the throttling expansion device of rotation turbine rotation and carry the pipeline of high pressure, high temperature liquid to constitute to throttling expansion device, it is characterized in that said throttling expansion device is installed on the rotation turbine by a coaxial circumference uniform distribution, the outlet axis of each throttling expansion device is on the tangent line of same circumference, on the throttling expansion device import is infused house steward with the transfusion arm collection of pressing the radial line layout to rotation, have with the fixing transfusion house steward of rotating shaft coaxial line to be connected with the coaxial counterpart of rotation transfusion house steward, joint seals with the mechanical seal device.

2, backflushing type liquid turbine as claimed in claim 1, it is characterized in that having on the bend pipe between radially transfusion arm and the tangential throttling expansion device radially thimble to be supported on rotates on the turbine, mainly bear transfusion arm be heated back longitudinal dilatation power and the centrifugal force when rotating, prevent throttling expansion device bending deflection.

3, backflushing type liquid turbine as claimed in claim 1 or 2, the rotating shaft that it is characterized in that said rotation turbine is vertically arranged, and it is vertically arranged just rotating the transfusion house steward, and the transfusion arm is that level is installed, and rotating shaft is installed in the bottom of rotating turbine.

4, backflushing type liquid turbine as claimed in claim 1 or 2 is characterized in that said body is an enclosed construction, rotates turbine and is installed in its inside, and underpart has a liquid port, and steam-expelling port is arranged at top.Regulate liquid level and the inside and outside pressure reduction of throttling expansion device in the vapour-liquid discharge amount may command body.

5, backflushing type liquid turbine as claimed in claim 3 is characterized in that said body is an enclosed construction, rotates turbine and is installed in its inside, and underpart has a liquid port, and steam-expelling port is arranged at top.Regulate liquid level and the inside and outside pressure reduction of throttling expansion device in the vapour-liquid discharge amount may command body.

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