阅读说明：本技术 一种带隔热室的高温泵 (High-temperature pump with heat insulation chamber ) 是由 李贵祥 于 2019-03-25 设计创作，主要内容包括：本发明涉及一种带隔热室的高温泵,主要由电机、密封组件、隔热室和高温泵组成。在电机与高温泵之间设有一个隔热室,电机的转轴贯穿隔热室连接高温泵,电机与隔热室之间设有密封组件；隔热室设有一个入口,隔热室的出口连通隔热室和高温泵；隔热室与高温泵之间设有轴式单向阀；高温泵另外还设有一个高温流体入口和一个出口。由于电机前的密封组件与高温泵之间间隔了一个隔热室,起到隔热作用,有效避免了密封组件高温变形、泄漏等问题。该泵能在300度左右高温高压的工况下长时间工作,主要应用于贯流式蒸汽模块锅炉等高温高压场合。(The invention relates to a high-temperature pump with a heat insulation chamber, which mainly comprises a motor, a sealing assembly, the heat insulation chamber and the high-temperature pump. A heat insulation chamber is arranged between the motor and the high-temperature pump, a rotating shaft of the motor penetrates through the heat insulation chamber to be connected with the high-temperature pump, and a sealing assembly is arranged between the motor and the heat insulation chamber; the heat insulation chamber is provided with an inlet, and an outlet of the heat insulation chamber is communicated with the heat insulation chamber and the high-temperature pump; a shaft type one-way valve is arranged between the heat insulation chamber and the high-temperature pump; the high temperature pump is further provided with a high temperature fluid inlet and an outlet. Because a heat insulation chamber is arranged between the sealing component in front of the motor and the high-temperature pump, the heat insulation effect is achieved, and the problems of high-temperature deformation, leakage and the like of the sealing component are effectively avoided. The pump can work for a long time under the working conditions of high temperature and high pressure of about 300 ℃, and is mainly applied to high temperature and high pressure occasions such as a through-flow steam module boiler and the like.)

1. The utility model provides a take high temperature pump of thermal-insulated room, mainly comprises motor, seal assembly, thermal-insulated room and high temperature pump, characterized by: a heat insulation chamber is arranged between the motor and the high-temperature pump, a rotating shaft of the motor penetrates through the heat insulation chamber to be connected with the high-temperature pump, and a sealing assembly is arranged between the motor and the heat insulation chamber; the heat insulation chamber is provided with an inlet, an outlet of the heat insulation chamber is arranged between the heat insulation chamber and the high-temperature pump, and the outlet of the heat insulation chamber is communicated with the heat insulation chamber and the high-temperature pump; a shaft type one-way valve is arranged between the heat insulation chamber and the high-temperature pump; the high temperature pump is further provided with an inlet and an outlet, plus an inlet communicating with the insulated chamber, for a total of two inlets and one outlet.

2. A high temperature pump with an insulated chamber as claimed in claim 1, wherein: the high-temperature pump is a centrifugal pump, an axial flow pump, a mixed flow pump, a plunger pump, a pipeline pump, a self-priming pump or a rotor pump.

3. A shaft check valve as defined in claim 1 wherein: the middle of the valve body is provided with a shaft hole, and when the valve is used, the rotating shaft penetrates through the shaft hole.

4. A high temperature pump with an insulated chamber as claimed in claim 1, wherein: the inlet of the heat insulation chamber is provided with a one-way valve or not.

Technical Field

The invention relates to a pump, in particular to a high-temperature pump with a heat insulation chamber, which is resistant to high temperature and high pressure.

Background

Disclosure of Invention

The invention is realized by the following steps: the utility model provides a take high temperature pump of thermal-insulated room, mainly comprises motor, seal assembly, thermal-insulated room and high temperature pump, characterized by: a heat insulation chamber is arranged between the motor and the high-temperature pump, a rotating shaft of the motor penetrates through the heat insulation chamber to be connected with the high-temperature pump, and a sealing assembly is arranged between the motor and the heat insulation chamber; the heat insulation chamber is provided with an inlet, an outlet of the heat insulation chamber is arranged between the heat insulation chamber and the high-temperature pump, and the outlet of the heat insulation chamber is communicated with the heat insulation chamber and the high-temperature pump; a shaft type one-way valve is arranged between the heat insulation chamber and the high-temperature pump; the high temperature pump is further provided with an inlet and an outlet, plus an inlet communicating with the insulated chamber, for a total of two inlets and one outlet.

When the high-temperature pump with the heat insulation chamber is applied to a through-flow steam module boiler, cold water is conveyed to the heat insulation chamber by an external booster pump, enters the heat exchanger through the high-temperature pump and is heated to form a mixture of steam and water, the steam and the water are separated by the steam-water separator, and the separated hot water is sent back to the heat exchanger by the high-temperature pump to be reheated and recycled. Because a heat insulation chamber is arranged between the sealing component in front of the motor and the high-temperature pump, the heat insulation effect is achieved, and the problems of high-temperature deformation, leakage and the like of the sealing component are effectively avoided.

The fluid for the high temperature pump with the heat insulation chamber is water or oil or other liquid.

The high-temperature pump is a centrifugal pump, an axial flow pump, a mixed flow pump, a plunger pump, a pipeline pump, a self-priming pump or a rotor pump.

The fluid entering the heat insulation chamber is normal temperature fluid usually, so that the sealing assembly between the motor and the heat insulation chamber can not be in direct contact with high temperature fluid, and deformation, abrasion and leakage of the sealing assembly caused by high temperature are effectively avoided.

The inlet of the heat insulation chamber is provided with a one-way valve or not. If the inlet of the heat insulation chamber is not provided with a one-way valve, the one-way valve is also additionally arranged when the heat insulation chamber is installed and used. The check valve prevents the back flow of high temperature fluid from the high temperature pump to the insulated chamber.

The shaft type one-way valve is a novel one-way valve, the shaft hole is formed in the middle of the valve body, when the shaft type one-way valve is used, the rotating shaft penetrates through the shaft hole, and the two directions are not completely closed. The axial check valve allows a small amount of fluid to pass through the gap between the rotating shaft and the valve. Example (c): the utility model provides an axle type check valve, mainly includes shell (7a), valve ring (7B), spring (7c), bottom plate (7d), characterized by: the shell, the valve ring and the bottom plate are all provided with shaft holes, wherein the apertures of the shell and the bottom plate are larger, and the aperture of the valve ring is smaller; more than two springs are provided, one end of each spring is connected with the valve ring, and the other end of each spring is connected with the inner side of the bottom plate or the shell. The aperture of the valve ring is slightly larger than the diameter of the rotating shaft, and the gap between the valve ring and the rotating shaft is smaller, so that a small amount of fluid is allowed to pass through. The axial check valve allows a large amount of fluid to flow from the insulated chamber to the high temperature pump. A sleeve can be additionally arranged between the valve ring and the rotating shaft and can be fixed on the bottom plate.

The high-temperature pump with the heat insulation chamber can be additionally provided with components such as a pressure regulating valve, a pressure gauge, a drain valve, an exhaust valve, a flow limiting sheet, a needle valve and the like as required.

The high-temperature pump with the heat insulation chamber can work under the high-temperature and high-pressure working condition of about 300 ℃ for a long time, and has wide application prospect in the fields of through-flow type module boilers and the like.

Drawings

FIG. 1 and FIG. 2 are schematic structural views of a first embodiment of the present invention

Detailed Description

The invention is further described below with reference to the accompanying drawings.

First embodiment

Referring to fig. 1, a high temperature pump with a heat insulation chamber mainly comprises a motor, a sealing assembly, the heat insulation chamber and a high temperature pump, and mainly comprises the motor (1), the sealing assembly (2), a one-way valve (3), an outlet (4), the heat insulation chamber (5), a rotating shaft (6), a shaft type one-way valve (7), an impeller (8), a high temperature pump outlet (9), a nut (10), a pump body (11), a high temperature fluid inlet (12) and a volute (13). The high-temperature pump is a centrifugal pump, a heat insulation chamber is arranged between the motor and the high-temperature pump, a rotating shaft of the motor penetrates through the heat insulation chamber to be connected with the high-temperature pump, and a sealing assembly is arranged between the motor and the heat insulation chamber; the heat insulation chamber is provided with an inlet, an outlet of the heat insulation chamber is arranged between the heat insulation chamber and the high-temperature pump, and the outlet of the heat insulation chamber is communicated with the heat insulation chamber and the high-temperature pump; a shaft type one-way valve is arranged between the heat insulation chamber and the high-temperature pump; the high-temperature pump is also provided with a high-temperature fluid inlet and a high-temperature fluid outlet, and the high-temperature fluid inlet and the high-temperature fluid outlet are added with an inlet communicated with the heat insulation chamber, so that the high-temperature fluid inlet and the high-temperature fluid outlet are totally two in and one out; the inlet of the heat insulation chamber is provided with a one-way valve. FIG. 2 is a shaft type check valve, which mainly comprises a shell (7a), a valve ring (7B), a spring (7c) and a bottom plate (7d), wherein the shell, the valve ring and the bottom plate are all provided with shaft holes, the hole diameters of the shell and the bottom plate are larger, and the hole diameter of the valve ring is smaller; the spring has two, and the one end of spring is connected with the valve circle, and the other end is connected with the bottom plate.