Sealed flushing water heating system
By using low-pressure steam pipelines and steam distribution pipes to heat the sealing flush water in the sealing flush water heating system, the problems of foreign matter blockage or freezing caused by too low sealing water temperature are solved, ensuring the safe and stable operation of production.
Patent Information
- Application Number
- CN202421333255.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-12
AI Technical Summary
In winter, the temperature of the sealing and flushing water is too low, resulting in foreign matter blockage or freezing at the sealing and flushing point, affecting the safe and stable operation of production.
A sealed flushing water heating system is designed, and steam is sent into the sealed flushing water tank using low-pressure steam pipelines and steam distribution pipes. The water temperature is controlled through a temperature regulating valve and temperature sensor to ensure that the sealed flushing water reaches above 35℃.
It effectively eliminates the problems of foreign matter blockage or freezing caused by low sealing water temperature, ensures the normal operation of the sealing flushing point, and improves the safety and stability of production.
Smart Images
Figure CN222505048U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sealing and flushing, in particular to a sealing and flushing water heating system. Background Art
[0002] According to the requirements of coal chemical industry and power generation process, the aerospace furnace device adopts the technology of wet dust removal in dry feeding quenching process. Three-stage flash evaporation is used in black water treatment. The flash evaporation process recovers heat and concentrates black water at the same time. In the control process of the quenching process, the flow meter, level gauge mechanical seal, pressure difference point and other seal flushing of the black water and gray water system are involved. Through the effect of clean seal flushing water, the accumulation of dust and scaling at the seal flushing point can be effectively prevented, thereby ensuring the normal use of each seal flushing point. The seal flushing water pump is designed to use a medium temperature of ≤35℃ and should not exceed 40℃, otherwise it will affect the flow of the pump. In actual operation, the seal flushing water comes from the primary reverse osmosis water in the water treatment workshop, and the water temperature is about 20℃. After entering winter, the ambient temperature is low, and the temperature of reverse osmosis water entering the seal flushing water tank is about 10°C; the temperature will continue to drop in the process of the seal flushing water pump delivering seal water to each seal flushing point, and the temperature will be even lower when entering the seal flushing point; once the seal flushing point is blocked by foreign objects or frozen, it is difficult to judge whether the water supply of each seal flushing point is normal through the temperature difference, and it cannot be dealt with in a timely and effective manner, which can easily cause fluctuations in the production system.
[0003] Therefore, it is necessary to invent a sealed flushing water heating system to solve the problem that the sealed flushing point is blocked by foreign objects or the sealed flushing water is frozen due to the low temperature of the sealed water in winter, which in turn affects the safe and stable operation of production. To this end, the utility model proposes a sealed flushing water heating system. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a sealing flushing water heating system to solve the problem that the sealing water temperature is low in winter, which affects the safe and stable operation of production when the sealing flushing point is blocked by foreign objects or the sealing flushing water is frozen.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealed flushing water heating system, comprising a low-pressure steam pipeline and a sealed flushing water tank, the low-pressure steam pipeline is installed with a temperature regulating valve and a temperature regulating valve sub-line, the temperature regulating valve sub-line is installed with a temperature regulating valve sub-line valve, and the two ends of the temperature regulating valve sub-line are respectively installed on the front and rear sides of the temperature regulating valve, the output end of the low-pressure steam pipeline is connected to a steam distribution pipe, and the steam distribution pipe is arranged inside the sealed flushing water tank, a temperature sensor is installed on one side wall of the sealed flushing water tank, and the temperature sensor is located below the steam distribution pipe, and the bottom side of the sealed flushing water tank is connected to a sealed flushing water pump through a sealed flushing water pump inlet pipeline.
[0006] As an optimal technical solution of the utility model, a front hand valve and a rear hand valve of the temperature regulating valve are also installed on the low-pressure steam pipeline, and the front hand valve and the rear hand valve of the temperature regulating valve are respectively located on both sides of the temperature regulating valve, and the front hand valve and the rear hand valve of the temperature regulating valve are both located between the two connection points of the temperature regulating valve sub-line and the low-pressure steam pipeline.
[0007] As a preferred technical solution of the utility model, two steam distribution pipes are provided, and the steam distribution pipes have symmetrical openings, and the openings are evenly distributed.
[0008] As a preferred technical solution of the utility model, a liquid level meter is also installed at the bottom of the sealed flushing water tank.
[0009] As a preferred technical solution of the utility model, one end of the sealed flushing water pump away from the sealed flushing water pump inlet pipeline is connected to the sealed flushing water pump outlet pipeline, and the sealed flushing water pump outlet pipeline delivers the sealed flushing water to each sealed flushing point.
[0010] As a preferred technical solution of the utility model, the liquid level depth of the steam distribution pipe inserted into the sealed flushing water tank does not exceed 1 / 3 of the total liquid level height.
[0011] The utility model provides a sealed flushing water heating system. Compared with the existing technology, it has the following beneficial effects:
[0012] 1. It eliminates the problem of failure to timely and effectively discover foreign matter blockage or freezing at the sealing flushing point in winter, which affects production events.
[0013] 2. The design is simple, easy to operate and convenient for operation control.
[0014] Other features and advantages of the present invention will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is a structural schematic diagram of the steam distribution pipe of the utility model;
[0017] In the figure: 1. low-pressure steam pipeline, 2. temperature regulating valve, 3. manual valve before temperature regulating valve, 4. manual valve after temperature regulating valve, 5. temperature regulating valve bypass line, 6. temperature regulating valve bypass line valve, 7. steam distribution pipe, 8. seal flushing water tank, 9. seal flushing water pump inlet pipeline, 10. seal flushing water pump, 11. seal flushing water pump outlet pipeline, 12. temperature sensor, 13. liquid level meter. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0020] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0021] See also Figure 1-2In this embodiment, a sealed flushing water heating system is provided, including a low-pressure steam pipeline 1 and a sealed flushing water tank 8, a temperature regulating valve 2 and a temperature regulating valve auxiliary line 5 are installed on the low-pressure steam pipeline 1, a temperature regulating valve auxiliary line valve 6 is installed on the temperature regulating valve auxiliary line 5, and the two ends of the temperature regulating valve auxiliary line 5 are respectively installed on the front side and the rear side of the temperature regulating valve 2, the output end of the low-pressure steam pipeline 1 is connected to a steam distribution pipe 7, and the steam distribution pipe 7 is arranged inside the sealed flushing water tank 8, a temperature sensor 12 is installed on one side wall of the sealed flushing water tank 8, and the temperature sensor 12 is located at the steam outlet. Below the steam distribution pipe 7, the temperature regulating valve 2 and the sealed flushing water tank 8 form a control loop, and the control is realized in the DCS operation screen. The temperature is set to 35℃ for automatic control. The bottom side of the sealed flushing water tank 8 is connected to the sealed flushing water pump 10 through the sealed flushing water pump inlet pipeline 9; the temperature regulating valve front hand valve 3 and the temperature regulating valve rear hand valve 4 are also installed on the low-pressure steam pipeline 1. The temperature regulating valve front hand valve 3 and the temperature regulating valve rear hand valve 4 are respectively located on both sides of the temperature regulating valve 2, and the temperature regulating valve front hand valve 3 and the temperature regulating valve rear hand valve 4 are both located between the temperature regulating valve auxiliary line 5 and the low-pressure steam pipeline 1. Between the two connection points of the steam pipeline 1; two steam distribution pipes 7 are arranged, and the steam distribution pipes 7 have symmetrical openings, which are evenly distributed; a liquid level gauge 13 is also installed at the bottom of the sealed flushing water tank 8; the sealed flushing water pump 10 is connected to the sealed flushing water pump outlet pipeline 11 at one end away from the sealed flushing water pump inlet pipeline 9, and the sealed flushing water pump outlet pipeline 11 delivers the sealed flushing water to each sealed flushing point; the liquid level depth of the steam distribution pipe 7 inserted into the sealed flushing water tank 8 does not exceed 1 / 3 of the total liquid level height to avoid steam bubbles affecting the sealed flushing water pump. The steam distribution pipe 7 goes deep into the bottom of the liquid surface Blind welding is used to seal the steam to avoid uneven steam distribution. The diameter of the steam distributor 7 is DN50, and there are two of them, which are distributed at 180°. The normal liquid level of the sealed flushing water tank 8 is controlled at 80%. The total height of the sealed flushing water tank 8 is 4 meters. Each steam distribution pipe is 2 meters long, 1.2 meters below the liquid level, and the first opening on the top is 0.2 meters away from the liquid level. The opening diameter is ￠15, and there are 4 holes on each layer. The holes are symmetrical, and the spacing between each layer is 0.1 meters. There are 10 layers in total. In winter, when the temperature is low, the sealed flushing water is heated to avoid blockage of the sealed flushing water pipeline. At the same time, it is convenient to judge and deal with the blocked sealed flushing water pipeline.
[0022] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0023] When in use, close the temperature regulating valve secondary line valve 6, open the temperature regulating valve front hand valve 3 and the temperature regulating valve rear hand valve 4, and send the steam into the steam distribution pipe 7 by adjusting the opening of the temperature regulating valve 2. The temperature is sent to the DCS through the temperature sensor 12 set in the seal flushing water tank 8, and the amount of steam added is gradually adjusted according to the change of the seal water temperature. When the temperature rises to 35°C and is relatively stable, the temperature is set to 35°C, and the temperature regulating valve 2 is put into automatic control, so that the seal flushing water can be heated and sent to each seal flushing point, which is convenient for timely discovery and handling of problems.
[0024] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A sealed flushing water heating system, characterized in that: The invention comprises a low-pressure steam pipeline (1) and a sealed flushing water tank (8), wherein the low-pressure steam pipeline (1) is provided with a temperature regulating valve (2) and a temperature regulating valve sub-line (5), wherein the temperature regulating valve sub-line valve (6) is provided on the temperature regulating valve sub-line (5), and the two ends of the temperature regulating valve sub-line (5) are respectively provided on the front side and the rear side of the temperature regulating valve (2), wherein the output end of the low-pressure steam pipeline (1) is connected with a steam distribution pipe (7), and the steam distribution pipe (7) is arranged inside the sealed flushing water tank (8), wherein a temperature sensor (12) is provided on a side wall of the sealed flushing water tank (8), and the temperature sensor (12) is located below the steam distribution pipe (7), and the bottom side of the sealed flushing water tank (8) is connected with a sealed flushing water pump (10) via a sealed flushing water pump inlet pipeline (9).
2. A sealed flushing water heating system according to claim 1, characterized in that: The low-pressure steam pipeline (1) is also equipped with a temperature regulating valve front hand valve (3) and a temperature regulating valve rear hand valve (4), the temperature regulating valve front hand valve (3) and the temperature regulating valve rear hand valve (4) are respectively located on both sides of the temperature regulating valve (2), and the temperature regulating valve front hand valve (3) and the temperature regulating valve rear hand valve (4) are both located between the two connection points of the temperature regulating valve secondary line (5) and the low-pressure steam pipeline (1).
3. A sealed flushing water heating system according to claim 1, characterized in that: Two steam distribution pipes (7) are provided, and the steam distribution pipes (7) have symmetrical openings, which are evenly distributed.
4. A sealed flushing water heating system according to claim 1, characterized in that: A liquid level meter (13) is also installed at the bottom of the sealed flushing water tank (8).
5. A sealed flushing water heating system according to claim 1, characterized in that: One end of the seal flushing water pump (10) away from the seal flushing water pump inlet pipeline (9) is connected to a seal flushing water pump outlet pipeline (11), and the seal flushing water pump outlet pipeline (11) delivers the seal flushing water to each seal flushing point.
6. A sealed flushing water heating system according to claim 1, characterized in that: The liquid level depth of the steam distribution pipe (7) inserted into the sealed flushing water tank (8) does not exceed 1 / 3 of the total liquid level height.