Sealing structure of hydraulic turbine complementary energy recovery device

Abstract

The utility model discloses a sealing structure of a hydraulic turbine complementary energy recovery device. The sealing structure comprises a hydraulic turbine complementary energy recovery device body, a liquid conveying pipe body, a sealing assembly and a movable assembly. Wherein a flange plate A is arranged on a liquid inlet of the hydraulic turbine complementary energy recovery device body; the liquid conveying pipe body is connected with a flange plate A of the hydraulic turbine complementary energy recovery device body through a flange plate B and a plurality of fixing bolts; the sealing assembly is arranged on a flange plate B of the infusion tube body; wherein the sealing assembly comprises a sealing groove and a sealing block; a sealing groove is formed in a flange plate A of the hydraulic turbine complementary energy recovery device body; the sealing block is connected with a flange plate B of the liquid conveying pipe body through a movable assembly. The sealing structure of the hydraulic turbine complementary energy recovery device is simple and reasonable in structure, ingenious in design, capable of improving the sealing performance of connection between the liquid conveying pipe body and the hydraulic turbine complementary energy recovery device body and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic turbines, in particular to a sealing structure of a hydraulic turbine residual energy recovery device. Background Technique

[0002] A hydraulic turbine is a mechanical device that converts the pressure energy in a liquid fluid medium into mechanical energy. By using a hydraulic turbine, the residual pressure of the liquid in the process flow can be recovered and reused, converted into mechanical energy to drive mechanical equipment, so as to achieve energy conservation. Technically, if there is 20KW of recovered energy, the hydraulic turbine can be used for recovery and utilization.

[0003] For example, a high-temperature and high-efficiency hydraulic turbine residual energy recovery device provided by a Chinese utility model patent with the publication number of CN212479345U includes a high-temperature turbine, a high-temperature hydraulic turbine and a low-temperature hydraulic turbine; a lift pump inputs high-temperature liquid into a recovery cavity, a heat insulation layer is arranged outside the recovery cavity, the high-temperature liquid is temporarily stored in the recovery cavity, and the generated high-temperature steam is transported to the high-temperature turbine through a high-temperature steam output pipeline for recovery power generation, and can be connected to a high-temperature recuperator for heat recovery and utilization; a high-temperature liquid output pipeline is arranged at the lower end of the recovery cavity, the end of the high-temperature liquid output pipeline is connected to the high-temperature hydraulic turbine, the outlet of the high-temperature hydraulic turbine is connected to a buffer cavity, and a waste heat recovery pipeline is connected above the buffer cavity; the high-temperature liquid output from the recovery cavity enters the high-temperature hydraulic turbine for hydraulic residual energy recovery, the cooled liquid enters the buffer cavity, and after waste heat recovery, it is converted into normal-temperature liquid, and then enters the low-temperature hydraulic turbine for secondary recovery.

[0004] At present, during the use of hydraulic turbine residual energy recovery devices on the market, it is necessary to connect the liquid delivery pipe to the liquid inlet of the hydraulic turbine residual energy recovery device. At the same time, in order to ensure the sealing performance of the connection between the hydraulic turbine residual energy recovery device and the liquid delivery pipe, a sealing structure is set at the connection. However, in the existing technology, most of the sealing structures only have a single sealing gasket, which is difficult to seal the connection between the hydraulic turbine residual energy recovery device and the liquid delivery pipe well, thus affecting the use effect of the hydraulic turbine residual energy recovery device. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sealing structure of a hydraulic turbine residual energy recovery device to solve the problems put forward in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A sealing structure of a hydraulic turbine residual energy recovery device, comprising a hydraulic turbine residual energy recovery device body, an infusion pipe body, a sealing component, and a movable component; wherein, a flange A is provided at the liquid inlet of the hydraulic turbine residual energy recovery device body; the infusion pipe body is connected to the flange A of the hydraulic turbine residual energy recovery device body through a flange B and a plurality of fixing bolts; the sealing component is arranged on the flange B of the infusion pipe body; wherein, the sealing component includes a sealing groove and a sealing block; a sealing groove is formed on the flange A of the hydraulic turbine residual energy recovery device body; the sealing block is connected to the flange B of the infusion pipe body through a movable component.

[0007] Preferably, the sealing block is inserted and matched with the sealing groove.

[0008] Preferably, the sealing block is of an annular structure, and the cross-section of the sealing block is a stepped structure with a larger upper part and a smaller lower part.

[0009] Preferably, the movable component includes a movable ring groove, a movable ring block, a spring, an opening groove, and a connecting block; a movable ring groove is formed in the flange B of the infusion pipe body; the movable ring block is slidably arranged in the movable ring groove; both ends of the spring are fixedly connected to the inner wall of the movable ring groove and the movable ring block respectively; a plurality of opening grooves are formed in the movable ring groove in an annular array; the connecting block passes through the opening groove, and one end of the connecting block is fixedly connected to the sealing block, and the other end is fixedly connected to the movable ring block.

[0010] Preferably, the connecting block is slidably matched with the opening groove.

[0011] Preferably, the connecting block is of an arc-shaped structure, and the width dimension of the connecting block is smaller than the top surface dimension of the sealing block.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. By setting the sealing component, the flange B of the infusion pipe body is connected to the flange A of the hydraulic turbine residual energy recovery device body through a plurality of fixing bolts, and the sealing block is inserted into the sealing groove until the opposite surfaces of the flange B of the infusion pipe body and the flange A of the hydraulic turbine residual energy recovery device body are in contact. At this time, the connection sealing of the infusion pipe body and the hydraulic turbine residual energy recovery device body is completed. Compared with the prior art, the structure of the present utility model is simple and reasonable, the design is ingenious, the sealing performance of the connection between the infusion pipe body and the hydraulic turbine residual energy recovery device body can be improved, and the practicability is relatively strong.

[0014] 2. By providing a movable component in the present utility model, during the contact process between the sealing block and the sealing groove, when the main body of the infusion tube moves towards the main body of the hydraulic turbine residual energy recovery device, the sealing block will press against the inner wall of the sealing groove, causing the sealing block to move towards the main body of the infusion tube. This will drive the movable ring block to slide within the movable ring groove by the five connecting blocks, causing the spring to contract under force. Due to the relative force generated by the contraction of the spring, the sealing block will be in closer contact with the sealing groove, further enhancing the sealing effect between the main body of the infusion tube and the main body of the hydraulic turbine residual energy recovery device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a cross-sectional view of the overall structure of the present utility model;

[0017] Figure 3 is a cross-sectional view of the structure of the main body of the hydraulic turbine residual energy recovery device of the present utility model;

[0018] Figure 4 is a partially disassembled cross-sectional view of the structure of the present utility model;

[0019] Figure 5 of the present utility model Figure 2 is an enlarged schematic view of part A in;

[0020] Figure 6 of the present utility model Figure 3 is an enlarged schematic view of part B in.

[0021] In the figure:

[0022] 1. Main body of the hydraulic turbine residual energy recovery device; 2. Main body of the infusion tube; 3. Sealing component; 4. Movable component; 301. Sealing groove; 302. Sealing block; 401. Movable ring groove; 402. Movable ring block; 403. Spring; 404. Opening groove; 405. Connecting block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1 to 6, the present utility model provides a technical solution: a sealing structure of a hydraulic turbine residual energy recovery device, comprising a hydraulic turbine residual energy recovery device body 1, an infusion pipe body 2, a sealing assembly 3 and a movable assembly 4; wherein, a flange A is provided at the liquid inlet of the hydraulic turbine residual energy recovery device body 1; the infusion pipe body 2 is connected to the flange A of the hydraulic turbine residual energy recovery device body 1 through a flange B and a plurality of fixing bolts; the sealing assembly 3 is arranged on the flange B of the infusion pipe body 2; wherein, the sealing assembly 3 includes a sealing groove 301 and a sealing block 302; a sealing groove 301 is formed on the flange A of the hydraulic turbine residual energy recovery device body 1; the sealing block 302 is connected to the flange B of the infusion pipe body 2 through the movable assembly 4; wherein, the sealing block 302 is in plug-in fit with the sealing groove 301; wherein, the sealing block 302 is of an annular structure, and the cross-section of the sealing block 302 is a stepped structure with a larger upper part and a smaller lower part, so as to improve the sealing performance between the sealing block 302 and the sealing groove 301 by extending the contact area between the sealing block 302 and the sealing groove 301. The flange B of the infusion pipe body 2 is connected to the flange A of the hydraulic turbine residual energy recovery device body 1 through a plurality of fixing bolts, and the sealing block 302 is inserted into the sealing groove 301 until the opposite surfaces of the flange B of the infusion pipe body 2 and the flange A of the hydraulic turbine residual energy recovery device body 1 are in contact. At this time, the connection sealing of the infusion pipe body 2 and the hydraulic turbine residual energy recovery device body 1 is completed. Compared with the prior art, the structure of the present utility model is simple and reasonable, and the design is ingenious, which can improve the sealing performance of the connection between the infusion pipe body 2 and the hydraulic turbine residual energy recovery device body 1, and has strong practicability.

[0025] As a preferred embodiment, the movable component 4 includes a movable ring groove 401, a movable ring block 402, a spring 403, an opening groove 404 and a connecting block 405; a movable ring groove 401 is formed in the flange B of the infusion tube body 2; the movable ring block 402 is slidably disposed in the movable ring groove 401; both ends of the spring 403 are fixedly connected to the inner wall of the movable ring groove 401 and the movable ring block 402 respectively; five opening grooves 404 are formed in the movable ring groove 401 in an annular array; the connecting block 405 passes through the opening groove 404, and one end of the connecting block 405 is fixedly connected to the sealing block 302, and the other end is fixedly connected to the movable ring block 402; wherein, the connecting block 405 is slidably matched with the opening groove 404; wherein, the connecting block 405 is of an arc-shaped structure, and the width dimension of the connecting block 405 is smaller than the top surface dimension of the sealing block 302. During the contact process between the sealing block 302 and the sealing groove 301, when the infusion tube body 2 moves towards the hydraulic turbine residual energy recovery device body 1, the sealing block 302 will squeeze the inner wall of the sealing groove 301, causing the sealing block 302 to move towards the direction close to the infusion tube body 2, so that the five connecting blocks 405 drive the movable ring block 402 to slide in the movable ring groove 401, causing the spring 403 to be stressed and contract. Due to the relative force generated by the contraction of the spring 403, the sealing block 302 will be in closer contact with the sealing groove 301, further improving the sealing effect between the infusion tube body 2 and the hydraulic turbine residual energy recovery device body 1.

[0026] Working principle: When in use, first, connect the flange B of the infusion tube body 2 and the flange A of the hydraulic turbine residual energy recovery device body 1 through a plurality of fixing bolts, and insert the sealing block 302 into the sealing groove 301. During the contact process between the sealing block 302 and the sealing groove 301, the sealing block 302 will squeeze the inner wall of the sealing groove 301, causing the sealing block 302 to move towards the direction close to the infusion tube body 2, so that the five connecting blocks 405 drive the movable ring block 402 to slide in the movable ring groove 401, causing the spring 403 to be stressed and contract. Due to the relative force generated by the contraction of the spring 403, the sealing block 302 will be in closer contact with the sealing groove 301, thereby improving the sealing effect between the infusion tube body 2 and the hydraulic turbine residual energy recovery device body 1 until the opposite surfaces of the flange B of the infusion tube body 2 and the flange A of the hydraulic turbine residual energy recovery device body 1 come into contact. At this time, the connection and sealing of the infusion tube body 2 and the hydraulic turbine residual energy recovery device body 1 are completed.

[0027] The above is the working process of the entire device, and the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0028] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A sealing structure of a hydraulic turbine residual energy recovery device, characterized in that, It includes a hydraulic turbine waste energy recovery device body (1), a liquid delivery pipe body (2), a sealing assembly (3) and a movable assembly (4); wherein, a flange A is provided at the liquid inlet of the hydraulic turbine waste energy recovery device body (1); the liquid delivery pipe body (2) is connected to the flange A of the hydraulic turbine waste energy recovery device body (1) through a flange B and a plurality of fixing bolts; the sealing assembly (3) is arranged on the flange B of the liquid delivery pipe body (2); wherein, the sealing assembly (3) includes a sealing groove (301) and a sealing block (302); the sealing groove (301) is formed on the flange A of the hydraulic turbine waste energy recovery device body (1); the sealing block (302) is connected to the flange B of the liquid delivery pipe body (2) through the movable assembly (4).

2. The sealing structure of a hydraulic turbine residual energy recovery device according to claim 1, characterized in that, The sealing block (302) is inserted and matched with the sealing groove (301).

3. The sealing structure of a hydraulic turbine residual energy recovery device according to claim 2, characterized in that The sealing block (302) is of an annular structure, and the cross-section of the sealing block (302) is a stepped structure with a larger upper part and a smaller lower part.

4. The sealing structure of a hydraulic turbine residual energy recovery device according to claim 3, characterized in that, The movable assembly (4) includes a movable ring groove (401), a movable ring block (402), a spring (403), an opening groove (404) and a connecting block (405); the movable ring groove (401) is formed in the flange B of the liquid delivery pipe body (2); the movable ring block (402) is slidably arranged in the movable ring groove (401); both ends of the spring (403) are fixedly connected to the inner wall of the movable ring groove (401) and the movable ring block (402) respectively; a plurality of opening grooves (404) are formed in the movable ring groove (401) in an annular array; the connecting block (405) passes through the opening groove (404), and one end of the connecting block (405) is fixedly connected to the sealing block (302), and the other end is fixedly connected to the movable ring block (402).

5. The sealing structure of a hydraulic turbine residual energy recovery device according to claim 4, characterized in that, The connecting block (405) is slidably matched with the opening groove (404).

6. The sealing structure of a hydraulic turbine residual energy recovery device according to claim 5, characterized in that, The connecting block (405) is of an arc-shaped structure, and the width dimension of the connecting block (405) is smaller than the top surface dimension of the sealing block (302).

Images