A condenser return water chamber air extraction device

Abstract

This utility model belongs to the field of condenser operation technology, and in particular to a condenser return water chamber air extraction device. It includes a housing and connecting components for the condenser return water chamber. An exhaust pipe installed on the housing in the condenser return water chamber is connected to a vacuum pump via the connecting components. The connecting components include an extraction pipe with both ends connected to the exhaust pipe and the vacuum pump, respectively. One end of the extraction pipe is sealed to the exhaust pipe via a sealing element. A support spring fitted on the extraction pipe has one end abutting against a fixed base and the other end abutting against a baffle. This utility model uses a sealing element at the connection between the extraction pipe and the exhaust pipe for sealing. No auxiliary accessories are needed during installation; the sealing element is simply inserted into the exhaust pipe along with the extraction pipe, quickly and stably sealing the two together. The operation is simple, convenient, fast, efficient, and easy to use.

Description

Technical Field

[0001] This utility model relates to the field of condenser operation technology, specifically to a condenser return water chamber air extraction device. Background Technology

[0002] The condenser is a crucial piece of equipment in a thermal power plant. Its function is to condense the exhaust steam from the turbine into water, which is then returned to the boiler as feedwater. During condenser operation, a certain amount of air accumulates in the return water chamber. This air can affect the condenser's vacuum level, reduce its efficiency, and even damage the equipment. Therefore, it is necessary to remove the air from the return water chamber in a timely manner to ensure the normal operation of the condenser.

[0003] Currently, in the existing condenser return water chamber air extraction components, the air extraction pipe is installed on the exhaust pipe of the return water chamber shell, and a sealing ring is required to seal the connection. However, the sealing ring is prone to aging, which leads to failure to seal properly, resulting in unstable vacuum in the condenser and affecting the normal operation of the equipment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an air extraction device for the condenser return water chamber, which solves the problem that the sealing ring is prone to aging, resulting in failure to seal properly, unstable vacuum in the condenser, and affecting the normal operation of the equipment.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] An air extraction device for a condenser return water chamber includes a housing and a connecting component at the condenser return water chamber. An exhaust pipe provided on the housing at the condenser return water chamber is connected to a vacuum pump through the connecting component. The connecting component includes an extraction pipe with both ends connected to the exhaust pipe and the vacuum pump, respectively. One end of the extraction pipe is sealed to the exhaust pipe through a sealing element. A support spring fitted on the extraction pipe has one end abutting against a fixed seat and the other end abutting against a baffle.

[0009] A pressure sensor is installed in the cavity inside the shell of the condenser return water chamber. Both the pressure sensor and the vacuum pump are connected to the controller.

[0010] Furthermore, the sealing element includes an inner ring and an outer ring. The inner ring is fixedly fitted onto the end of the suction pipe and sealed, while the outer ring abuts against the inner wall of the exhaust pipe. A deformable elastic support portion is provided between the inner ring and the outer ring.

[0011] One end of the deformable elastic support is integrally set at the middle position of the outer side wall of the inner ring, and the other end is integrally set at the middle position of the inner side wall of the outer ring. Elastic support members are installed in the deformable elastic support and are arranged in a ring array. Reinforcing rods are fixedly connected to both ends of the elastic support members. The reinforcing rods are located at corresponding positions inside the inner ring and the outer ring, respectively.

[0012] A deformable end connector is provided at one end of the inner ring and the outer ring in the direction of the air extraction pipe insertion. The two sides of the deformable end connector are fixedly connected to the corresponding parts of the inner ring and the outer ring respectively, forming a deformable arc-shaped contact surface between them.

[0013] The outer ring has an integrally formed sealing anti-slip lip plate on the side that contacts the exhaust pipe. The sealing anti-slip lip plates are evenly distributed and bent in the opposite direction.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides an air extraction device for the condenser return water chamber, which has the following advantages:

[0016] This invention involves installing a sealing element at the connection between the suction pipe and the exhaust pipe for sealing. No auxiliary accessories are required during installation; the sealing element is simply inserted into the exhaust pipe along with the suction pipe, quickly and stably sealing the two together. The operation is simple, convenient, fast, efficient, and easy to use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the connecting component in this utility model;

[0019] Figure 3 This is a cross-sectional view of the connecting component in this utility model;

[0020] Figure 4 This is a schematic diagram of the elastic support component in this utility model.

[0021] In the diagram: 1. Condenser return water chamber shell; 101. Exhaust pipe; 2. Connecting component; 201. Extraction pipe; 202. Seal; 2021. Inner ring; 2022. Outer ring; 2023. Deformable elastic support; 2024. Elastic support; 2025. Deformable end connection; 2026. Sealing anti-slip lip plate; 203. Fixing seat; 204. Support spring; 205. Baffle; 3. Vacuum pump. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in one embodiment of this utility model, an air extraction device for a condenser return water chamber includes a housing 1 and a connecting component 2 at the condenser return water chamber location. An exhaust pipe 101 mounted on the housing 1 at the condenser return water chamber location is connected to a vacuum pump 3 via the connecting component 2. The connecting component 2 includes an extraction pipe 201 with its two ends respectively connected to the exhaust pipe 101 and the vacuum pump 3. One end of the extraction pipe 201 is sealed to the exhaust pipe 101 via a sealing member 202. One end of the support spring 204 mounted on 201 abuts against the fixed seat 203 and the other end abuts against the baffle 205. The baffle 205 is slidably connected to the suction pipe 201, so as to facilitate sliding on the suction pipe 201. The fixed seat 203 is fixedly mounted on the suction pipe 201 to provide stable and effective support for the support spring 204 and achieve stable and effective limiting. After the suction pipe 201 and the exhaust pipe 101 are connected, the baffle 205 abuts against the end of the exhaust pipe 101.

[0025] A pressure sensor is installed in the cavity inside the shell 1 of the condenser return water chamber. The pressure sensor and the vacuum pump 3 are both connected to the controller. The pressure sensor, the vacuum pump 3 and the controller are all existing technologies, so they will not be described in detail. During the vacuuming process, the pressure sensor can be used to monitor the pressure in the cavity inside the return water chamber in real time and transmit the monitoring data to the controller for processing. If the return water chamber is in a vacuum state, the vacuum pump 3 will not run. If the return water chamber is not in a vacuum state, the vacuum pump 3 will run to vacuum.

[0026] During use, when connecting the vacuum pump 3 to the exhaust pipe 101 at the return water chamber, first connect one end of the suction pipe 201 stably to the suction port of the vacuum pump 3, and then insert the suction pipe 201 and the sealing element 202 into the exhaust pipe 101. As it is continuously inserted, the end of the exhaust pipe 101 abuts against the baffle 205 and pushes the baffle 205 to slide on the suction pipe 201. The support spring 204 deforms along with it. After the baffle 205 slides a certain distance, the insertion of the suction pipe 201 is stopped.

[0027] During the insertion of the suction pipe 201, the exhaust pipe 101 will press against the seal 202, and the outer ring 2022 will deform appropriately, forming a frustum-shaped sealing component at the end of the suction pipe 201. After the insertion of the suction pipe 201 is stopped, the support spring 204 applies a stable supporting force to the exhaust pipe 101 through the baffle 205, thereby pulling the suction pipe 201 towards the outside of the exhaust pipe 101. The suction pipe 201 will apply a pulling force to the seal 202, due to the outer ring The outer ring 2022 is pressed against the inner wall of the exhaust pipe 101 and sealed, which will hinder the movement of the outer ring 2022. The deformable elastic support 2023 will transfer the stress of the obstruction to the inner ring 2021 and the suction pipe 201, preventing the suction pipe 201 from sliding off the exhaust pipe 101. Therefore, the greater the tension applied by the support spring 204, the greater the resistance generated by the sealing ring 202, and the more stable the sealing connection between the sealing element 202 and the exhaust pipe 101, ensuring stable use.

[0028] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the seal 202 includes an inner ring 2021 and an outer ring 2022. The inner ring 2021 is fixedly fitted onto the end of the suction pipe 201 and sealed, facilitating the stable installation of the seal 202 at the end of the suction pipe 201. The outer ring 2022 abuts against the inner wall of the exhaust pipe 101, stably sealing the seal 202 with the exhaust pipe 101. A deformable elastic support 2023 is provided between the inner ring 2021 and the outer ring 2022, facilitating the stable connection of the inner ring 2021 and the outer ring 2022 together, so that the two cooperate stably and are used together. This forms a stable sealing component between the insertion parts of the suction pipe 201 and the exhaust pipe 101, stably sealing the two together and ensuring that the vacuum pump 3 can smoothly extract air from the internal cavity of the return water chamber, so that the internal cavity of the return water chamber is always in a vacuum state, ensuring the stable and smooth operation of the condenser.

[0029] One end of the deformable elastic support 2023 is integrally disposed at the middle position of the outer side wall of the inner ring 2021, and the other end is integrally disposed at the middle position of the inner side wall of the outer ring 2022. Elastic support members 2024 are disposed in the deformable elastic support 2023 and arranged in a ring array. Reinforcing rods are fixedly connected to both ends of the elastic support members 2024. The reinforcing rods are located at corresponding positions inside the inner ring 2021 and the outer ring 2022, which facilitates the stable installation of the elastic support members 2024 in the deformable elastic support 2023. The use of reinforcing rods at both ends improves stability and ensures stable use. At the same time, the elastic support members 2024 can provide stable and effective support for the deformable elastic support 2023 and strengthen the strength of the deformable elastic support 2023.

[0030] During the process of the sealing element 202 being inserted into the internal cavity of the exhaust pipe 101 along with the suction pipe 201, the end of the exhaust pipe 101 will come into contact with and squeeze the deformable end connection 2025 and the outer ring 2022 of the sealing element 202, causing it to deform, thereby ensuring that it can slide smoothly into the interior of the exhaust pipe 101 and tightly abut against the inner wall of the exhaust pipe 101, achieving a stable sealing connection.

[0031] To ensure stable use, the outer diameter of the outer ring 2022 is slightly larger than the inner diameter of the exhaust pipe 101, so that after the outer ring 2022 slides into the exhaust pipe 101, the two are interference-fitted to ensure a stable sealing connection. When the outer ring 2022 is compressed and deformed, the deformable elastic support part 2023 and the elastic support member 2024 inside it deform together. The end of the deformed elastic support member 2024 is stably supported on the outer ring 2022, so that the outer ring 2022 can tightly abut against the inner wall of the exhaust pipe 101, improving the stability of the sealing connection.

[0032] A deformable end connector 2025 is provided at one end of the inner ring 2021 and the outer ring 2022 in the insertion direction of the suction pipe 201. The two sides of the deformable end connector 2025 are fixedly connected to the corresponding parts of the inner ring 2021 and the outer ring 2022 respectively, forming a deformable arc-shaped contact surface between them. This facilitates the smooth insertion of the seal 202 into the exhaust pipe 101 along with the suction pipe 201, improving the ease of use. At the same time, after deformation, the contact area between the seal 202 and the inner wall of the exhaust pipe 101 can be increased, enhancing the sealing connection effect and ensuring stable use.

[0033] The outer ring 2022 is integrally provided with a sealing anti-slip lip plate 2026 on the side that contacts the exhaust pipe 101. The sealing anti-slip lip plates 2026 are evenly distributed and bent in the opposite direction, which facilitates the formation of multiple stable and effective sealing surfaces between the outer ring 2022 and the exhaust pipe 101, thereby enhancing the sealing connection effect and stability.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A condenser backwater chamber air extraction device comprising a casing (1) at a condenser backwater chamber site and a connecting member (2), characterized in that: The exhaust pipe (101) installed on the shell (1) of the condenser return water chamber is connected to the vacuum pump (3) through the connecting component (2). The connecting component (2) includes a suction pipe (201) with both ends connected to the exhaust pipe (101) and the vacuum pump (3) respectively. One end of the suction pipe (201) is sealed to the exhaust pipe (101) through the sealing component (202). One end of the support spring (204) fitted on the suction pipe (201) abuts against the fixed seat (203) and the other end abuts against the baffle (205).

2. A condenser backwater chamber air evacuation device according to claim 1, characterized in that: The sealing element (202) includes an inner ring (2021) and an outer ring (2022). The inner ring (2021) is fixedly fitted onto the end of the suction pipe (201) and sealed. The outer ring (2022) abuts against the inner wall of the exhaust pipe (101). A deformable elastic support part (2023) is provided between the inner ring (2021) and the outer ring (2022).

3. A condenser backwater chamber air evacuation device according to claim 2, characterized in that: One end of the deformable elastic support (2023) is integrally disposed at the middle position of the outer side wall of the inner ring (2021), and the other end is integrally disposed at the middle position of the inner side wall of the outer ring (2022). Elastic support members (2024) are placed in the deformable elastic support (2023) and distributed in a ring array. Both ends of the elastic support members (2024) are fixedly connected with reinforcing rods, which are located at corresponding positions inside the inner ring (2021) and the outer ring (2022).

4. The air extraction device for the condenser return water chamber according to claim 2, characterized in that: A deformable end connector (2025) is provided at one end of the inner ring (2021) and the outer ring (2022) in the insertion direction of the exhaust pipe (201). The two sides of the deformable end connector (2025) are fixedly connected to the corresponding parts of the inner ring (2021) and the outer ring (2022) respectively, forming a deformable arc-shaped contact surface between them.

5. A condenser backwater chamber air evacuation device according to claim 2, characterized in that: The outer ring (2022) is integrally provided with a sealing anti-slip lip plate (2026) on the side that contacts the exhaust pipe (101). The sealing anti-slip lip plates (2026) are evenly distributed and bent in the opposite direction.

6. A condenser backwater chamber air evacuation device according to claim 1, characterized in that: A pressure sensor is installed in the cavity inside the shell (1) of the condenser return water chamber. The pressure sensor and the vacuum pump (3) are both connected to the controller.

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