Production device for preventing water impact of deaerator pipeline
By installing electric valves and drainage pipes on the deaerator pipeline, the problem of water impact in the four extraction pipelines of the deaerator was solved, achieving safe production and efficient operation.
Patent Information
- Application Number
- CN202422876614.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-25
AI Technical Summary
In the existing technology, the four-stage extraction pipeline of the deaerator is prone to pipeline vibration and water hammer during the start-up process, which can lead to weld cracking and steam leakage. In addition, the unreasonable position of the electric valve can cause frequent water hammer, affecting safe production.
A first electric valve is installed on the four-stage deaeration pipeline, and a drainage pipeline is added after the valve. Second and third drainage pipelines are installed before and after the regulating valve. The accumulated water is drained through the drainage pipelines to avoid water hammer accidents.
It effectively prevents water hammer accidents, improves production efficiency and pipeline operation safety, and ensures the stability of the deaerator pipeline.
Smart Images
Figure CN223460438U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of preventing water impact of pipeline, especially relates to a production device for preventing water impact of deaerator pipeline. BACKGROUND
[0002] In the prior art, the deaerator four-extraction pipeline often has pipeline vibration phenomenon during the starting process, and the starting time is relatively long, which leads to that the production operation cannot continue, and the water impact generated in the pipeline easily leads to the problem of frequent welding leakage of the pipeline weld, which has caused great safety production problems to the normal production of the workshop.
[0003] In addition, the electric valve in the pipeline is installed at an unreasonable position, that is, the vertical section of the pipeline, and there is no drain before the valve, so that the water cannot be drained when it is put into use, which easily leads to water impact and causes large pipeline vibration.
[0004] In addition, the deaerator platform regulating valve is designed unreasonably before and after the valve, and there is no drain pipeline, so that when the deaerator stops, the hot steam from the deaerator condenses to cause water accumulation, and impact is easily generated when the four-extraction steam is put into use. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a production device for preventing water impact of a deaerator pipeline, which solves the problem of water impact of the deaerator pipeline in the prior art.
[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that:
[0007] The utility model provides a production device for preventing water impact of a deaerator pipeline, which comprises:
[0008] A deaerator;
[0009] A low-pressure cylinder, which is connected with the deaerator through a four-extraction deaeration pipeline;
[0010] A first electric valve, which is arranged on the four-extraction deaeration pipeline and is used for controlling steam delivery on the four-extraction deaeration pipeline;
[0011] A first drain pipeline, which is arranged behind the valve of the first electric valve;
[0012] A regulating valve, which is arranged on the four-extraction deaeration pipeline and is used for controlling the steam delivery flow rate;
[0013] A second drain pipeline, which is arranged in front of the valve of the regulating valve;
[0014] A third drain pipeline, which is arranged behind the valve of the regulating valve.
[0015] Further, the four-extraction oxygen-removing pipeline comprises a first horizontal pipeline, a second horizontal pipeline and a third horizontal pipeline which are sequentially communicated.
[0016] Further, the first horizontal pipeline is provided with a steam extraction check valve, a valve front of the steam extraction check valve is provided with a steam extraction check valve front drain pipeline, and a valve rear of the steam extraction check valve is provided with a steam extraction check valve rear drain pipeline; the steam extraction check valve front drain pipeline and the steam extraction check valve rear drain pipeline are communicated with the condenser.
[0017] Further, the second horizontal pipeline is provided with the first electric valve.
[0018] Further, the third horizontal pipeline is provided with the adjusting valve.
[0019] Further, the second drain pipeline is provided with a bypass valve I, and the third drain pipeline is provided with a bypass valve II.
[0020] Further, the first drain pipeline is provided with a second electric valve for controlling the on-off of the drain of the first drain pipeline.
[0021] Due to the above technical scheme, the utility model has the following advantages compared with the prior art:
[0022] The utility model discloses a kind of production devices for preventing water impact of oxygen-removing device pipeline, by being provided with first electric valve on four-extraction oxygen-removing pipeline, and being provided with first drain pipeline after its valve;Synchronously, second drain pipeline and third drain pipeline are provided before and after adjusting valve, ensure that before using four-extraction oxygen-removing pipeline, condensate in pipeline is emptied, avoid when using, water impact accident occurs, influence production efficiency and pipeline operation. BRIEF DESCRIPTION OF DRAWINGS
[0023] Some specific embodiments of the utility model will be described in detail hereinafter with reference to the drawings in an exemplary but not restrictive manner. The same reference signs in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:
[0024] Figure 1 is a plane device diagram before the production device for preventing water impact of oxygen-removing device pipeline is reformed provided by the utility model;
[0025] Figure 2 is a plane device diagram after the production device for preventing water impact of oxygen-removing device pipeline is reformed provided by the utility model;
[0026] Among them, the following is explained:
[0027] 1, deaerator; 2, low-pressure cylinder; 3, four-extraction deaerator pipeline; 30, first horizontal pipeline; 301, extraction check valve; 3010, extraction check valve pre-drain pipeline; 3011, extraction check valve post-drain pipeline; 31, second horizontal pipeline; 32, third horizontal pipeline; 4, first electric valve; 5, first drain pipeline; 501, second electric valve; 6, regulating valve; 7, second drain pipeline; 70, bypass valve I; 8, third drain pipeline; 80, bypass valve II. DETAILED DESCRIPTION
[0028] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0029] Referring to Figure 1 , before the production device for preventing water impact of deaerator pipeline in the present application is modified, there is no corresponding drain pipeline designed before and after the corresponding regulating valve 6, which easily leads to water accumulation after hot steam from the deaerator 1 condenses when the machine is stopped, and water impact accidents are prone to occur when the four-extraction deaerator pipeline 3 is used. In addition, Figure 1 , the first electric valve 4 in the original four-extraction deaerator pipeline 3 is arranged in the vertical section, and no drain pipeline is arranged after the valve, which also easily causes pipeline water impact accidents and affects safe production.
[0030] On this basis, the present application discloses a production device for preventing water impact of deaerator pipeline after modification, specifically referring to Figure 2 , the device comprises a deaerator 1, a low-pressure cylinder 2, a four-extraction deaerator pipeline 3, a first electric valve 4, a first drain pipeline 5, a regulating valve 6, a second drain pipeline 7, and a third drain pipeline 8.
[0031] The foregoing deaerator 1 and low-pressure cylinder 2 are connected through the four-extraction deaerator pipeline 3, and the low-pressure cylinder 2 generates electricity to send steam to the deaerator 1. In the present application, the foregoing four-extraction deaerator pipeline 3 comprises a first horizontal pipeline 30, a second horizontal pipeline 31, and a third horizontal pipeline 32 which are sequentially communicated.
[0032] Specifically, the first horizontal pipeline 30 is provided with an extraction check valve 301. A steam extraction check valve drain line 3010 is located upstream of the extraction check valve 301, and a steam extraction check valve drain line 3011 is located downstream of the extraction check valve 301. Both the steam extraction check valve drain line 3010 and the steam extraction check valve drain line 3011 are connected to the condenser. When the four deaeration pipelines 3 are not in use, condensate before and after the first electric valve 4 can be drained into the condenser via the steam extraction check valve drain line 3010 and the steam extraction check valve drain line 3011 before and after the extraction check valve 301, thereby draining the accumulated water from the pipelines and preventing it from affecting production.
[0033] The second horizontal pipeline 31 is provided with a first electric valve 4 for controlling the steam delivery on the fourth deoxygenation pipeline 3. In the embodiment of the present utility model, the position of the first electric valve 4 is changed from the original position to the Figure 1 Adjust the vertical segment in Figure 2 Meanwhile, in the embodiment of the present invention, a first drain pipe 5 is added after the first electric valve 4, and a second electric valve 501 is provided on the first drain pipe 5 to control the drain on and off of the first drain pipe 5. In the embodiment of the present invention, by adjusting the position of the first electric valve 4 and adding a drain pipe, the accumulated water after the first electric valve 4 is drained through the first drain pipe 5 before the fourth deoxygenation pipe 3 is put into use, ensuring that there is no water in the pipe.
[0034] Regarding the aforementioned third horizontal pipeline 32, in an embodiment of the present invention, a regulating valve 6 is provided on the third horizontal pipeline 32 to control the flow rate of the steam transported on the fourth deoxygenation pipeline 3. Furthermore, in an embodiment of the present invention, a second drain pipeline 7 is provided before the regulating valve 6, and a third drain pipeline 8 is provided after the regulating valve 6. Both the second drain pipeline 7 and the third drain pipeline 8 are provided with corresponding drain valves to control the respective drain shutoffs. Through the second drain pipeline 7 and the third drain pipeline 8, accumulated water in the pipelines before and after the regulating valve 6 is drained, preventing the accumulated water from affecting pipeline operation.
[0035] Furthermore, the bypass valve I 70 is arranged on the second drain pipeline 7, and the bypass valve II 80 is arranged on the third drain pipeline 8. The bypass valve is arranged to avoid the drain valve in the corresponding drain pipeline to continue the drain operation when the drain valve fails. In addition, the bypass valve I 70 and the bypass valve II 80 can cooperate with the drain valve in the corresponding drain pipeline to drain the condensate water by using the bypass valve I 70 and the bypass valve II 80 before the four-extraction oxygen-removing pipeline 3 is put into use, and to drain the condensate water by using the drain valve on the drain pipeline after the four-extraction oxygen-removing pipeline 3 is put into use, so that a small amount of condensate water can be drained during normal use, and the pipeline operation safety is ensured.
[0036] Working principle: Before the four-extraction oxygen-removing pipeline 3 is put into use, the first electric valve 4 is in a closed state, and the condensate water in the pipeline before the first electric valve 4 is drained to the condenser through the steam check valve before and after the steam check valve and the drain pipeline before and after the steam check valve, so that the pipeline accumulated water is emptied.
[0037] When the four-extraction oxygen-removing pipeline 3 is ready to be put into use, the first drain pipeline 5 corresponding to the newly added second electric valve 501 after the first electric valve 4 is opened, the operator observes whether the condensate water flows out of the drain outlet of the first drain pipeline 5 corresponding to the second electric valve 501, and after confirming that the condensate water is drained, the bypass valve I 70 and the bypass valve II 80 on the second drain pipeline 7 and the third drain pipeline 8 before and after the regulating valve 6 of the oxygen remover 1 are opened, and the emptying condition of the condensate water in the second drain pipeline 7 and the third drain pipeline 8 is observed. At this time, the regulating valve 6 is in a closed state, and the main purpose of the drain bypass valve before and after the regulating valve 6 is to drain the condensate water generated during the shutdown and maintenance of the pipeline from the regulating valve 6 to the oxygen remover 1, so as to avoid water hammer when the regulating valve 6 is opened.
[0038] After confirming that there is no accumulated water before and after the regulating valve 6, the four-extraction oxygen-removing pipeline 3 is put into use, the first electric valve 4 is slowly opened to send steam to the front of the regulating valve 6, the drain condition of the drain pipeline before and after the second electric valve 501 and the regulating valve 6 is observed, and when there is no condensate water drained from each drain pipeline after the pipeline is warmed up for a period of time, the regulating valve 6 is slowly opened to send steam to the oxygen remover 1. After normal steam sending, the first drain pipeline 5 corresponding to the second electric valve 501 and the drain bypass valve I 70 and the bypass valve II 80 before and after the regulating valve 6 are closed. The corresponding drain valves on the second drain pipeline 7 and the third drain pipeline 8 before and after the regulating valve 6 are opened synchronously. A small amount of condensate water can be drained during normal production, and the pipeline operation safety is ensured.
[0039] In summary, the utility model discloses a kind of production device for preventing water impact of deaerator pipeline, by being provided with first electric valve 4 on four pumping deaerator pipeline 3, and first drain pipeline 5 is set after its valve;Synchronously, second drain pipeline 7 and third drain pipeline 8 are set before and after regulating valve 6, ensure that before using four pumping deaerator pipeline 3, condensate in pipeline is emptied, avoid water impact accident when using, influence production efficiency and pipeline operation.
[0040] The above embodiments are only for illustrating the technical concept and characteristics of the utility model, and the purpose is to enable persons skilled in the art to understand the content of the utility model and to implement it, and it cannot limit the protection scope of the utility model. Any equivalent changes or modifications made in accordance with the spirit and essence of the utility model shall be covered within the protection scope of the utility model.
Claims
1. A production device for preventing water surge of a deaerator line, characterized by, The utility model relates to a kind of steam turbine systems, including: Deaerator (1); Low-pressure cylinder (2);The low-pressure cylinder (2) is connected with the deaerator (1) by four extraction deaerator pipeline (3); First electric valve (4), the first electric valve (4) is arranged on the four extraction deaerator pipeline (3) for controlling steam delivery on the four extraction deaerator pipeline (3); First drain pipeline (5), the first drain pipeline (5) is arranged after the valve of the first electric valve (4); Regulating valve (6), the regulating valve (6) is arranged on the four extraction deaerator pipeline (3) for controlling steam delivery flow size; Second drain pipeline (7), the second drain pipeline (7) is arranged before the valve of the regulating valve (6); Third drain pipeline (8), the third drain pipeline (8) is arranged after the valve of the regulating valve (6).
2. The apparatus for preventing water impact on the pipeline of the deaerator according to claim 1, wherein The four extraction deaerator pipeline (3) includes first horizontal pipeline (30), second horizontal pipeline (31) and third horizontal pipeline (32) in turn.
3. The apparatus for preventing water impact on the pipeline of the oxygen remover according to claim 2, characterized in that, Extraction check valve (301) is provided on the first horizontal pipeline (30), extraction check valve (301) is provided with extraction check valve front drain pipeline (3010) before valve, extraction check valve (301) is provided with extraction check valve rear drain pipeline (3011) after valve;Extraction check valve front drain pipeline (3010) and extraction check valve rear drain pipeline (3011) are all communicated with condenser.
4. The apparatus for preventing water impact on the pipeline of the oxygen remover according to claim 2, wherein, The first electric valve (4) is provided on the second horizontal pipeline (31).
5. The apparatus for preventing water impact on the pipeline of the oxygen remover according to claim 2, wherein, The regulating valve (6) is provided on the third horizontal pipeline (32).
6. The apparatus for preventing water impact on the pipeline of the oxygen remover according to claim 1 or 5, wherein, Bypass valve I (70) is provided on the second drain pipeline (7), and bypass valve II (80) is provided on the third drain pipeline (8).
7. The apparatus for preventing water impact on the pipeline of the oxygen remover according to claim 1, wherein, Second electric valve (501) is provided on the first drain pipeline (5) for controlling the on-off of the first drain pipeline (5).