Energy recovery power generation turbine unit capable of being used for multiple media

Abstract

The invention discloses an energy recovery power generation turbine unit capable of being used for multiple media, and relates to the technical field of turbine units, the energy recovery power generation turbine unit comprises a stator assembly and a rotor assembly rotationally arranged on the stator assembly, the stator assembly is provided with at least two sealed cavities which do not interfere with each other, and each sealed cavity is provided with an inlet and an outlet; a turbine shaft on the rotor assembly penetrates through the multiple closed cavities in a dynamic sealing mode, an impeller is arranged in each closed cavity on the turbine shaft, and when each impeller is subjected to the action of a corresponding medium, the multiple impellers jointly drive the turbine shaft to rotate in the consistent rotating direction. Through the arrangement of the at least two closed cavities, the turbine shaft sequentially penetrates through the multiple closed cavities, the portion, located in each closed cavity, of the turbine shaft is provided with the impeller, the closed cavities and the impellers in the closed cavities form the working cavities, and then the multiple working cavities can receive multiple media at the same time and are used for jointly acting on the turbine shaft to rotate.

Description

Technical Field

[0001] The present invention relates to the technical field of turbine units, and in particular to a turbine unit for energy recovery and power generation that can be used for multiple media. Background Art

[0002] A turbine is a machine that converts the energy contained in a fluid medium into mechanical energy. It is also called a turbine or turbine. The working conditions and working fluids of a turbine are different, so its structural types are varied, but the basic working principles are similar. The most important component of a turbine is a rotating element, namely a rotor, or impeller, which is installed on the turbine shaft and has blades evenly arranged along the circumference. The energy of the fluid is converted into kinetic energy when it flows through the nozzle. When it flows through the impeller, the fluid impacts the blades, pushing the impeller to rotate, thereby driving the turbine shaft to rotate. The turbine shaft drives other machines directly or through a transmission mechanism to output mechanical work. The working fluid of a turbine can be gas, such as steam, gas, air and other gases or mixed gases, or liquid, such as water, oil or other liquids. A turbine with water as the working fluid is called a water turbine; a turbine with steam as the working fluid is called a steam turbine; a turbine with gas as the working fluid is called a gas turbine.

[0003] The turbine unit is generally composed of a stator assembly and a rotor assembly. The stator assembly is provided with a liquid inlet and a liquid outlet. The rotor assembly includes a turbine shaft and an impeller arranged on the turbine shaft. Taking liquid as an example, the liquid enters the stator assembly through the liquid inlet and then is discharged from the liquid outlet. During this process, the liquid will impact the impeller on the rotor assembly, causing the impeller to drive the turbine shaft to rotate and generate mechanical energy. If the turbine shaft is connected to a generator, the mechanical energy can be converted into electrical energy. As can be seen from the above, a single turbine unit can only convert the energy contained in one medium when working. If it is necessary to convert multiple different media, if you choose to make multiple groups of media pass through the turbine unit in turn, this working method is time-consuming and labor-intensive, and the operation is relatively cumbersome; if you choose to add multiple turbine units to adapt to the working method of multiple different media, the company needs to purchase multiple turbine units, which increases the production cost, and the subsequent maintenance costs are also high.

[0004] Taking into account the inconvenience of the above two methods, we propose an energy recovery power generation turbine unit that can be used for multiple media to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the prior art and to propose an energy recovery power generation turbine unit that can be used for multiple media. The turbine unit has multiple closed chambers that do not interfere with each other. Each closed chamber has an impeller. The closed chamber and the impeller inside it constitute a working chamber. Furthermore, the multiple working chambers can respectively receive multiple media at the same time to work together to rotate the turbine shaft. The work of the multiple media does not interfere with each other, and the use is convenient.

[0006] To solve the above problems, the present invention provides the following technical solutions:

[0007] A turbine unit for energy recovery power generation that can be used for multiple media includes a stator assembly and a rotor assembly rotatably arranged on the stator assembly, wherein the stator assembly has at least two closed chambers that do not interfere with each other, and each closed chamber is provided with an inlet and an outlet, the turbine shaft on the rotor assembly is dynamically sealed to penetrate the multiple closed chambers, and an impeller is arranged on the turbine shaft in each closed chamber, so that when each impeller is acted upon by the corresponding medium, the multiple impellers with the same rotation direction jointly drive the turbine shaft to rotate.

[0008] As a further solution of the present invention: the stator assembly has a cavity inside, and at least one partition is sealed in the cavity to divide the cavity into at least two closed chambers, and the turbine shaft dynamic seal on the rotor assembly penetrates the partition.

[0009] As a further solution of the present invention: dynamic sealing is achieved between the turbine shaft and the partition plate through a mechanical seal.

[0010] As a further solution of the present invention: the turbine unit also includes a protective component for protecting the mechanical seal, the protective component includes a baffle arranged on one side of the partition, and the baffle is sleeved on the outside of the turbine shaft, and a protective cover is provided on the side of the baffle facing the partition, and the protective cover is used to cover one end of the mechanical seal.

[0011] As a further solution of the present invention: the protective cover is configured as a truncated cone as a whole, and the large diameter end of the protective cover faces the mechanical seal.

[0012] As a further solution of the present invention: a connecting rod is fixedly arranged on the partition, and the baffle is fixedly arranged on the connecting rod.

[0013] As a further solution of the present invention: the turbine shaft is coaxially arranged with the truncated cone-shaped protective cover.

[0014] As a further solution of the present invention: each impeller is installed in the same direction as the turbine shaft.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Through the arrangement of at least two closed chambers, the turbine shaft sequentially passes through the multiple closed chambers, and the turbine shaft is provided with an impeller inside each closed chamber. The closed chamber and the impeller inside it constitute a working chamber, and then the multiple working chambers can respectively receive multiple media at the same time to work together to rotate the turbine shaft, and the work of the multiple media does not interfere with each other, which is convenient to use;

[0017] 2. By setting up the protective component, the mechanical seal between the turbine shaft and the partition can be protected by the protective component to prevent the medium flowing inside the closed chamber from causing impact damage to the mechanical seal, thereby ensuring the stability of the dynamic seal cooperation between the partition and the turbine shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 yes Figure 1 A schematic diagram of the front view structure of the mechanical seal and protection components;

[0021] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure in the state;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the baffle and the protective cover in the present invention.

[0023] In the figure: 1. stator assembly; 101. sealed chamber; 2. rotor assembly; 201. turbine shaft; 202. impeller; 3. partition; 4. mechanical seal; 5. baffle; 6. protective cover; 7. connecting rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1-Figure 4As shown, a turbine unit for energy recovery power generation for multiple media includes a stator assembly 1 and a rotor assembly 2. The stator assembly 1 has a cavity inside, and at least one partition 3 is sealed in the cavity so that the cavity is divided into at least two closed chambers 101. Each closed chamber 101 is provided with an inlet for medium entry and an outlet for medium outflow; the rotor assembly 2 has a turbine shaft 201, which is rotatably arranged on the stator assembly 1, and the turbine shaft 201 sequentially penetrates a plurality of partitions 3 and extends into the closed chamber 101. It should be noted that the turbine shaft 201 is connected to the partition 3 in a dynamic seal to ensure that the closed chamber 101 is still in a closed state after the turbine shaft 201 penetrates. An impeller 202 is arranged inside each closed chamber 101 on the turbine shaft 201, and the impeller 202 is coaxially arranged with the turbine shaft 201, and each impeller 202 is installed in the same direction.

[0026] There is no limit to the number of the partitions 3 in this article, and the number can be set according to actual work requirements; Figure 1 The figure shows a case where a partition plate 3 is provided to form two closed chambers 101. Under this setting, when the turbine unit is used to process two kinds of media at the same time, the two kinds of media can enter the two closed chambers 101 respectively. The media will have an impact on the impeller 202 inside the corresponding closed chamber 101, and the impeller 202 will rotate. Since the two impellers 202 are installed in the same direction, the rotation direction of the two impellers 202 is consistent, and the turbine shaft 201 can be driven to rotate together. By connecting the turbine shaft 201 to other energy-demanding components, energy conversion can be achieved. For example, by connecting the turbine shaft 201 to the rotating shaft of the generator through a coupling, the mechanical energy generated by the turbine shaft 201 can be converted into electrical energy.

[0027] It should be noted that the stator assembly 1 and the rotor assembly 2 in the present invention are both conventional technical means in the prior art. The stator assembly 1 is used as a carrier for the medium to enter and flow out, and the rotor assembly 2 is used to transfer and convert the energy of the medium. In some possible embodiments, the stator assembly 1 is configured as a pump body or a derivative thereof, and the rotor assembly 2 is configured as a combination of a turbine shaft 201 and an impeller 202 or a derivative thereof.

[0028] like Figure 2-Figure 3 As shown, the dynamic sealing arrangement between the turbine shaft 201 and the partition 3 can be realized by a conventional mechanical seal 4; in order to ensure that the medium inside the sealing chamber 101 does not cause a large impact on the mechanical seal 4, the present invention is provided with a protective component for protecting the mechanical seal 4.

[0029] Specifically, the protection assembly includes a connecting rod 7 fixedly arranged on the side of the partition 3, a baffle 5 is arranged on the connecting rod 7, and the baffle 5 is sleeved on the outside of the turbine shaft 201, and the baffle 5 does not interfere with the rotation of the turbine shaft 201. A protective cover 6 is arranged on the side of the baffle 5 facing the partition 3, and the protective cover 6 is used to cover one end of the mechanical seal 4. Figure 2 As shown, in this state, when the medium inside the closed chamber flows, it will first be blocked by the baffle 5, thereby weakening the impact of the medium on the mechanical seal 4, protecting the mechanical seal 4, and ensuring the sealing between the two adjacent closed chambers 101. Of course, in order to improve the protection effect, protection components can be set on both sides of the partition 3, and then the two groups of protection components can protect the two ends of the mechanical seal 4 respectively.

[0030] like Figure 2 and Figure 4 As shown, on the basis of setting the protection component, in order for the protection cover 6 to have a better covering effect on the mechanical seal 4, the present embodiment can set the protection cover 6 as a whole in a truncated cone shape, and the large diameter end of the protection cover 6 faces the mechanical seal 4. At the same time, the turbine shaft 201 is coaxially arranged with the truncated cone-shaped protection cover 6, and the mechanical seal 4 is completely covered by using the large diameter opening end of the protection cover 6.

[0031] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An energy recovery power generation turbine unit that can be used for multiple media, characterized in that: The invention comprises a stator assembly (1) and a rotor assembly (2) rotatably arranged on the stator assembly (1), wherein the stator assembly (1) has at least two sealed chambers (101) that do not interfere with each other, and each sealed chamber (101) is provided with an inlet and an outlet, a turbine shaft (201) on the rotor assembly (2) dynamically seals and penetrates through the plurality of sealed chambers (101), and an impeller (202) is arranged in each sealed chamber (101) on the turbine shaft (201), so that when each impeller (202) is acted upon by a corresponding medium, the plurality of impellers (202) with the same rotation direction jointly drive the turbine shaft (201) to rotate.

2. The energy recovery power generation turbine unit applicable to multiple media according to claim 1, characterized in that: The stator assembly (1) has a cavity inside, and at least one partition (3) is sealed in the cavity so that the cavity is divided into at least two closed chambers (101), and the turbine shaft (201) on the rotor assembly (2) is dynamically sealed and penetrates the partition (3).

3. The energy recovery power generation turbine unit applicable to multiple media according to claim 2, characterized in that: Dynamic sealing is achieved between the turbine shaft (201) and the partition plate (3) via a mechanical seal (4).

4. The energy recovery power generation turbine unit applicable to multiple media according to claim 3, characterized in that: The turbine unit also includes a protective component for protecting the mechanical seal (4), the protective component including a baffle (5) arranged on one side of the partition (3), and the baffle (5) is sleeved on the outside of the turbine shaft (201), and a protective cover (6) is arranged on the side of the baffle (5) facing the partition (3), and the protective cover (6) is used to cover one end of the mechanical seal (4).

5. The energy recovery power generation turbine unit applicable to multiple media according to claim 4, characterized in that: The protective cover (6) is configured as a truncated cone as a whole, and the large diameter end of the protective cover (6) faces the mechanical seal (4).

6. The energy recovery power generation turbine unit applicable to multiple media according to claim 4 or 5, characterized in that: A connecting rod (7) is fixedly arranged on the partition plate (3), and the baffle plate (5) is fixedly arranged on the connecting rod (7).

7. The energy recovery power generation turbine unit applicable to multiple media according to claim 5, characterized in that: The turbine shaft (201) is coaxially arranged with the truncated cone-shaped protective cover (6).

8. An energy recovery power generation turbine unit for multiple media according to any one of claims 1 to 5, characterized in that: Each impeller (202) is installed in the same direction as the turbine shaft (201).

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