Desalted water supply system for self-contained power plant
By introducing a water supply bypass pipeline into the demineralized water supply system of the self-owned power plant, the problems of high operating power consumption and large land area were solved, achieving the effects of reduced power consumption and land saving.
Patent Information
- Application Number
- CN202423003384.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-05
AI Technical Summary
The existing demineralized water supply system of the self-owned power plant has problems of high power consumption and large footprint, especially due to the long-term operation of the process demineralization pump and the setting of the backup demineralization tank.
A bypass pipeline is introduced into the demineralized water supply system. During normal operation, the excess pressure head of the demineralized water main pipe is used to directly supply water to low-pressure users. The process demineralization pump only operates under special conditions and supplies water through the bypass when the demineralization tank is under maintenance, thus eliminating the need for a standby water tank.
The system reduced the power consumption of the demineralized water supply system and saved construction land. By optimizing the structure of the water supply system, the system's efficiency and economy were improved.
Smart Images
Figure CN223592433U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of self-provided power plants, and particularly to a desalted water supply system for a self-provided power plant. BACKGROUND
[0002] Steel joint enterprises generally have self-provided power plants for recycling secondary resources such as waste heat and waste energy. For enterprises with multiple self-provided power plants, a centralized desalted water station is usually used to save investment in the desalted water system.
[0003] Finished desalted water is supplied to desalted water tanks of each power station through a desalted water main pipe, and then supplied to each system of the unit through a process desalted pump. Each power station is provided with an independent desalted water tank, and the water supply safety redundancy is high. At the same time, the process desalted pump usually has high water supply pressure and flow selection, which can meet the different needs of various conditions such as unit maintenance and heating. The process desalted pump of this desalted water supply system is operated for a long time, and the operation power consumption is high. At the same time, in order to avoid the influence of desalted tank maintenance on unit water supply, two desalted tanks are generally provided, which occupies a large area. SUMMARY
[0004] The present disclosure aims to at least solve one of the problems in the prior art or related art.
[0005] To this end, the present disclosure provides a desalted water supply system for a self-provided power plant, which comprises a desalted water main pipe, a desalted system, a water supply bypass and a water supply pipe group. The desalted system comprises a desalted tank, a desalted pipe and a process desalted pump. One end of the desalted pipe is connected with the desalted tank, and the opposite end is connected with the water supply pipe group. The process desalted pump is arranged on the desalted pipe. The desalted water main pipe has a water inlet and a water outlet. The water outlet is connected with the desalted tank, and a desalted tank water supplement valve is arranged on one side of the water outlet.
[0006] The water supply bypass has a water inlet port and a water outlet port. The water inlet port is connected with the desalted water main pipe between the desalted tank water supplement valve and the water inlet. The water outlet port is connected with the desalted pipe on the outlet side of the process desalted pump. The water supply bypass is provided with a stop valve.
[0007] The water supply pipe group comprises a main water supply pipe and a plurality of branch water supply pipes. The branch water supply pipes are respectively connected with the main water supply pipe, and the branch water supply pipes are respectively provided with branch stop valves.
[0008] In a feasible implementation, an inlet valve and an outlet valve are further included. The inlet valve is arranged on the desalted pipe on the inlet side of the process desalted pump. The outlet valve is arranged on the desalted pipe on the outlet side of the process desalted pump.
[0009] In an implementation, a flow meter is further included, which is arranged on the main water supply pipe and used to monitor the flow into the plurality of branch water supply pipes.
[0010] In an implementation, one of the plurality of branch water supply pipes is arranged as a condenser supply pipeline.
[0011] In an implementation, one of the plurality of branch water supply pipes is arranged as a condensate polishing water supply pipeline.
[0012] In an implementation, one of the plurality of branch water supply pipes is arranged as a laboratory water supply pipeline.
[0013] In an implementation, one of the plurality of branch water supply pipes is arranged as a deaerator water supply pipeline.
[0014] In an implementation, one of the plurality of branch water supply pipes is arranged as a boiler drum water supply pipeline.
[0015] In an implementation, the desalted water main pipe water supply pressure is arranged as 0.3-0.4 MPa.
[0016] In an implementation, the desalted tank water supply valve, the stop valve and the branch stop valve are arranged as electric stop valves.
[0017] Compared with the prior art, the present disclosure has at least the following beneficial effects: the present disclosure optimizes the desalted water supply system, is provided with a water supply bypass pipeline, when the unit is normally operated, the main water supply users are the condenser, the laboratory and other users, the required water quantity is small and the pressure is low, the surplus pressure head of the desalted water main pipe is utilized, the desalted water is directly supplied through the water supply bypass pipeline, the process desalted pump is only operated in the special conditions of condensate polishing regeneration and inspection water supply, and thus the electric power consumption of the desalted water supply system in operation can be reduced. In addition, when the desalted tank is overhauled, the water can be supplied through the bypass, and a standby water tank does not need to be arranged, and thus the construction land can be saved. BRIEF DESCRIPTION OF DRAWINGS
[0018] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present disclosure and together with the description serve to explain the principles of the present disclosure.
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without any creative labor under the premise of the drawings.
[0020] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the illustrative embodiments. The accompanying drawings are included to provide a description of the illustrative embodiments and are not intended to limit the scope of the application. Moreover, the same reference numerals in different drawings represent the same or similar elements. In the drawings:
[0021] Figure 1 A front view structural schematic diagram of the present disclosure.
[0022] wherein, Figure 1 The correspondence between the reference signs and the component names in the drawings is as follows:
[0023] 10 - inlet valve; 20 - outlet valve; 30 - flow meter;
[0024] 1 - desalted water mother pipe; 11 - water inlet; 12 - water outlet; 122 - desalted tank; 3 - desalted pipe; 4 - process desalted pump; 5 - desalted tank water supplement valve; 6 - water supply bypass; 61 - water inlet port; 62 - water outlet port; 7 - stop valve; 8 - main water supply pipe; 81 - condenser supply pipe; 82 - condensate water fine treatment water supply pipe; 83 - laboratory water supply pipe; 84 - deaerator water supply pipe; 85 - boiler drum water supply pipe; 9 - branch stop valve. DETAILED DESCRIPTION
[0025] In order to enable a more complete understanding of the above-mentioned purposes, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.
[0026] In the following description, many specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure can also be practiced without the specific details that are described herein; obviously, the embodiments described in the specification are only some of the embodiments of the present disclosure, not all the embodiments.
[0027] At present, the finished desalted water is supplied to the desalted water tank of each power station through the desalted water mother pipe, and then supplied to each system of the unit through the process desalted pump. Each power station is provided with an independent desalted water tank, and the water supply safety redundancy is high. At the same time, the process desalted pump usually has high water supply pressure and flow selection, which can meet the different needs of various conditions such as unit maintenance and heating. The process desalted pump provided in this desalted water supply system is operated for a long time, and the operation power consumption is high. At the same time, in order to avoid the influence of desalted tank maintenance on unit water supply, two desalted tanks are generally provided, which occupies a large area.
[0028] Based on this, the embodiment of the present disclosure provides a desalted water supply system for a self-provided power plant. The present disclosure optimizes the desalted water supply system, and a water supply bypass pipeline is arranged. When the unit is normally operated, the main water supplement users are the condenser, the laboratory and the like, the required water quantity is small, the pressure is low, the surplus pressure head of the desalted water main pipeline is utilized, the desalted water is directly supplied through the water supply bypass pipeline, the process desalted pump is only operated in special conditions such as condensate water fine treatment regeneration and inspection water supplement, and the electric energy consumption of the desalted water supply system in operation can be reduced. In addition, the desalted tank can be supplied through the water supply bypass when the desalted tank is overhauled, a standby water tank does not need to be arranged, and the construction land can be saved.
[0029] The desalted water supply system for the self-provided power plant will be described in detail through specific embodiments as follows.
[0030] Referring to FIG. 1, Figure 1 The present disclosure provides a desalted water supply system for a self-provided power plant, which comprises a desalted water main pipeline 1, a desalted system, a water supply bypass 6 and a water supply pipeline group. The desalted system comprises a desalted tank 2, a desalted pipeline 3 and a process desalted pump 4. One end of the desalted pipeline 3 is connected with the desalted tank 2, and the opposite end is connected with the water supply pipeline group. The process desalted pump 4 is arranged on the desalted pipeline 3. The desalted water main pipeline 1 has a water inlet 11 and a water outlet 12. The water outlet 12 is connected with the desalted tank 2, and a desalted tank water supplement valve 5 is arranged on one side of the water outlet 12. The water supply bypass 6 has a water inlet port 61 and a water outlet port 62. The water inlet port 61 is communicated with the desalted water main pipeline 1 between the desalted tank water supplement valve 5 and the water inlet 11. The water outlet port 62 is communicated with the desalted pipeline 3 on the outlet side of the process desalted pump 4, and the water supply bypass 6 is provided with a stop valve 7. The water supply pipeline group comprises a main water supply pipeline 8 and a plurality of branch water supply pipelines. The plurality of branch water supply pipelines are respectively communicated with the main water supply pipeline 8, and the plurality of branch water supply pipelines are respectively provided with branch stop valves 9.
[0031] The present disclosure optimizes the desalted water supply system, and the water supply bypass 6 pipeline is arranged. When the unit is normally operated, the main water supplement users are the condenser, the laboratory and the like, the required water quantity is small, the pressure is low, the surplus pressure head of the desalted water main pipeline is utilized, the desalted water is directly supplied through the water supply bypass 6 pipeline, the process desalted pump 4 is only operated in special conditions such as condensate water fine treatment regeneration and inspection water supplement, and the electric energy consumption of the desalted water supply system in operation can be reduced. In addition, the desalted tank 2 can be supplied through the water supply bypass 6 when the desalted tank 2 is overhauled, a standby water tank does not need to be arranged, and the construction land can be saved. The desalted water is supplied to each process system through the plurality of branch water supply pipelines. Further, the branch stop valves 9 are respectively arranged on the plurality of branch water supply pipelines to satisfy the independent opening and closing of each branch water supply pipeline.
[0032] In some embodiments, the inlet valve 10 and the outlet valve 20 are further included, the inlet valve 10 is arranged on the desalination pipeline 3 at the inlet side of the process desalination pump 4, and the outlet valve 20 is arranged on the desalination pipeline 3 at the outlet side of the process desalination pump 4, so as to meet the pipeline opening and closing function during individual maintenance. Specifically, the inlet valve 10 and the outlet valve 20 can be selected from open and close valves such as manual stop valves or electric stop valves, and the disclosure specifically selects electric stop valves to meet the automatic control and facilitate operation. In some embodiments, the plurality of branch water supply pipes can be respectively arranged as the condenser supply pipeline 81, the condensate water fine treatment water supply pipeline 82, the laboratory water supply pipeline 83, the deaerator water supply pipeline 84, and the boiler drum water supply pipeline 85, so as to meet the water supply demand of each process system.
[0033] In some embodiments, the flow meter 30 is further included, the flow meter 30 is arranged on the main water supply pipe, and the flow meter 30 is used for monitoring the flow entering the plurality of branch water supply pipes, so that the water supply flow can be monitored to facilitate analysis of the pipeline state and water quantity monitoring.
[0034] In some embodiments, the desalination water main pipe 1 is arranged to have a water supply pressure of 0.3-0.4 MPa, so as to meet the water pressure standard.
[0035] In some embodiments, the desalination tank water supply valve 5, the stop valve 7, and the branch stop valve 9 are arranged as electric stop valves 7 to meet the automatic control requirement.
[0036] In the disclosure, the terms "first", "second", "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; "connection" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the disclosure can be understood according to the specific circumstances.
[0037] In the description of the disclosure, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the disclosure and simplifying the description, and do not indicate or imply that the devices or units referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, cannot be understood as a limitation on the disclosure.
[0038] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "certain embodiments", and the like is intended to indicate that the described implementation, feature, structure, material or characteristic is included in at least one embodiment or example of the present disclosure. The illustrative representations of the above terms in the specification are not necessarily referring to the same embodiment or example. Moreover, the described implementation, feature, structure, material or characteristic can be combined in any one or more embodiments or examples in a suitable manner.
[0039] The above only is the preferred embodiment of the present disclosure, and is not intended to limit the present disclosure. The present disclosure can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.
Claims
1. A desalted water supply system for a self-provided power plant, characterized by, The system comprises a desalted water main pipe, a desalination system, a water supply bypass and a water supply pipe group, the desalination system comprises a desalination tank, a desalination pipe and a process desalination pump, one end of the desalination pipe is connected with the desalination tank, the opposite end is connected with the water supply pipe group, and the process desalination pump is arranged in the desalination pipe, The desalted water main pipe has a water inlet and a water outlet, the water outlet is connected with the desalination tank, and a desalination tank water replenishing valve is arranged on one side of the water outlet; The water supply bypass has a water inlet port and a water outlet port, the water inlet port is communicated with the desalted water main pipe between the desalination tank water replenishing valve and the water inlet, the water outlet port is communicated with the desalination pipe on the outlet side of the process desalination pump, and the water supply bypass is provided with a stop valve; The water supply pipe group comprises a main water supply pipe and a plurality of branch water supply pipes, the plurality of branch water supply pipes are respectively communicated with the main water supply pipe, and a branch stop valve is arranged on each of the plurality of branch water supply pipes.
2. The desalted water supply system for a private power plant according to claim 1, characterized by, An inlet valve and an outlet valve are further included, the inlet valve is arranged in the desalination pipe on the inlet side of the process desalination pump, and the outlet valve is arranged in the desalination pipe on the outlet side of the process desalination pump.
3. The desalted water supply system for a private power plant according to claim 1, characterized by A flow meter is further included, the flow meter is arranged in the main water supply pipe, and the flow meter is used for monitoring the flow entering the plurality of branch water supply pipes.
4. The desalted water supply system for a private power plant according to claim 1, characterized by At least one of the plurality of branch water supply pipes is a condenser water supply pipe.
5. The desalted water supply system for a private power plant according to claim 1, characterized by At least one of the plurality of branch water supply pipes is a condensate water fine treatment water supply pipe.
6. The desalted water supply system for a private power plant according to claim 1, characterized by At least one of the plurality of branch water supply pipes is a laboratory water supply pipe.
7. The desalted water supply system for a private power plant according to claim 1, characterized by At least one of the plurality of branch water supply pipes is a deaerator water supply pipe.
8. The desalted water supply system for a private power plant according to claim 1, characterized by At least one of the plurality of branch water supply pipes is a boiler drum water supply pipe.
9. The desalted water supply system for a private power plant according to claim 1, characterized by The water supply pressure of the desalted water main pipe is set to 0.3-0.4 MPa.
10. The desalted water supply system for a private power plant according to any one of claims 1 to 9, characterized by, The desalination tank water replenishing valve, the stop valve and the branch stop valve are electric stop valves.