A condenser water replenishing spraying device

Abstract

The utility model relates to condenser technical field, a condenser water supply spraying device, including condensing mechanism body and setting in its inner chamber a plurality of cooling pipes, still include: the first connecting pipe of fixed connection in the inner wall of condensing mechanism body, the utility model discloses the setting of spraying mechanism can make low temperature chemical water can be in time and fully with the exhaust steam of higher temperature and carry out heat exchange to the effective promotion of condensing mechanism body's vacuum degree, significantly reduced the oxygen content in the condensate, and enhanced the reliability of unit safe operation, under the action of control mechanism, can adjust the chemical water flow of spraying mechanism to the effective reduction of energy waste, reduce operating cost, and can make condensing mechanism body keep efficient, stable energy utilization efficiency, provide strong support for the optimization and control of the overall operation cost of thermal power plant, solve the problem that the existing device is not good when using heat exchange efficiency and the problem of insufficient flexibility.

Description

Technical Field

[0001] This utility model relates to the field of condenser technology, specifically to a condenser makeup water spraying device. Background Technology

[0002] The condenser is a crucial component of the thermal cycle system of a thermal power plant, serving as the "cooling heart" of the entire power generation process and playing an irreplaceable role in ensuring the safe, efficient, and stable operation of the unit.

[0003] However, some existing condenser makeup water spray devices involve drilling many small holes in a pipe that extends into the condenser. These holes spray water in the form of a water column. The water column has a very small contact area with the higher exhaust steam, which cannot effectively exchange heat with the exhaust steam. As a result, the makeup water cannot reach the saturation temperature under the exhaust steam pressure, and the oxygen in the water cannot be fully separated and discharged, causing the dissolved oxygen content in the condensate to exceed the standard, which is not conducive to the safe operation of the unit.

[0004] In addition, when the existing condenser water spraying devices are used during the non-heating season, the unit load is relatively low, the steam discharge is reduced, and the demand for water in the condensing mechanism is also reduced accordingly. If the water is still operated in the same way as during the high load of the heating season, it will cause energy waste and increase operating costs. Moreover, excessive water may cause the water temperature in the condensing mechanism to be too low, affecting the heat exchange effect. Utility Model Content

[0005] The purpose of this invention is to provide a condenser makeup water spraying device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a condenser makeup water spraying device, comprising a condenser mechanism body and a plurality of cooling pipes disposed within its inner cavity, and further comprising:

[0007] A first connecting pipe is fixedly connected to the inner wall of the condensing mechanism body, and a second connecting pipe is fixedly connected to the inner wall of the condensing mechanism body. The surface of the first connecting pipe is provided with a spraying mechanism for spraying low-temperature atomized chemical water into the inner cavity of the condensing mechanism body.

[0008] A control mechanism that connects one end of the first connecting pipe and one end of the second connecting pipe to adjust the spray flow rate of the spraying mechanism.

[0009] Preferably, the spraying mechanism includes a first branch pipe connected to the surface of the first connecting pipe, a second branch pipe connected to the surface of the second connecting pipe, and atomizing nozzles connected to the surfaces of both the first and second branch pipes.

[0010] Preferably, the control mechanism includes a tee pipe connecting one end of the first connecting pipe and one end of the second connecting pipe, wherein a first valve is provided on the surface of the first connecting pipe and a second valve is provided on the surface of the second connecting pipe.

[0011] Preferably, the surfaces of the first branch pipe and the second branch pipe are fixedly connected to a connecting frame, and the two sides of the connecting frame are fixedly connected to the surface of the atomizing nozzle.

[0012] Preferably, the first branch pipe and the second branch pipe are designed in an alternating manner.

[0013] Preferably, the number of atomizing nozzles on the surface of the first branch pipe is greater than the number of atomizing nozzles on the surface of the second branch pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention, through the setting of a spraying mechanism, enables low-temperature chemical water to exchange heat with higher-temperature exhaust steam in a timely and sufficient manner, thereby effectively improving the vacuum degree of the condensing unit, significantly reducing the oxygen content in the condensate, and enhancing the reliability of the unit's safe operation. Under the action of the control mechanism, the flow rate of chemical water in the spraying mechanism can be adjusted, thereby effectively reducing energy waste, lowering operating costs, and enabling the condensing unit to maintain high and stable energy utilization efficiency. This provides strong support for the optimization and control of the overall operating costs of thermal power plants and solves the problems of poor heat exchange efficiency and insufficient flexibility in the use of existing devices. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention;

[0018] Figure 3 This is a partial three-dimensional cross-sectional structural diagram of the present invention;

[0019] Figure 4 This is a partial three-dimensional cross-sectional structural diagram from another perspective of the present invention.

[0020] In the diagram: 1. Condensing mechanism body; 2. Cooling pipe; 3. First connecting pipe; 4. Second connecting pipe; 5. Spraying mechanism; 51. First branch pipe; 52. Second branch pipe; 53. Atomizing nozzle; 6. Connecting frame; 7. Control mechanism; 71. T-junction; 72. First valve; 73. Second valve. Detailed Implementation

[0021] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0022] Please see Figure 1-4 As shown, a condenser makeup water spraying device includes a condenser body 1, which consists of an inlet pipe, an outlet pipe, a steam inlet, and a water collection shell, facilitating normal operation by staff. The inner cavity of the condenser body 1 is equipped with several cooling pipes 2. When turbine exhaust steam enters the condenser body 1 through the steam inlet, it comes into contact with the surface of the cooling pipes 2. Since relatively low-temperature cooling water flows inside the cooling pipes 2, condensate is generated on their surface and collects in the water collection shell. To facilitate subsequent treatment of the condensate, a first connecting pipe 3 is fixedly connected to the inner wall of the condenser body 1, and a second connecting pipe 4 is fixedly connected to the inner wall of the condenser body 1. The second connecting pipe 4 is located 1500 mm below the first connecting pipe 3. Low-temperature chemical water flows through both the second connecting pipe 4 and the first connecting pipe 3. A spraying mechanism 5 is provided on the surface of the first connecting pipe 3. The spraying mechanism 5 can spray the low-temperature chemical water in the inner cavity of the second connecting pipe 4 and the first connecting pipe 3 into the inner cavity of the condenser body 1, so that the added low-temperature chemical water... The chemical water exchange with the higher-temperature exhaust steam in a timely and sufficient manner effectively improves the vacuum level of the condensing unit body 1, significantly reduces the oxygen content in the condensate, and enhances the reliability of the unit's safe operation. One end of the first connecting pipe 3 and the second connecting pipe 4 is connected to a control mechanism 7, which can regulate the spraying status of the spraying mechanism 5. Under this effect, during the heating season, when the unit is operating at high load, the staff can operate the control mechanism 7 to adjust the chemical water flow rate of the spraying mechanism 5 to meet the large flow water demand of the unit under high load conditions, effectively improving the working efficiency of the condenser. During the non-heating season, the unit load is relatively low, and the water demand is correspondingly reduced. At this time, the staff can operate the control mechanism 7 to adjust the chemical water flow rate of the spraying mechanism 5, thereby effectively reducing the unnecessary waste of energy caused by excessive chemical water flow and ensuring that the spraying mechanism 5 can always operate in the optimal state under different operating conditions, thereby effectively improving the unit's economy and stability and providing a strong guarantee for the safe and efficient operation of the thermal power plant.

[0023] The spraying mechanism 5 includes a first branch pipe 51 connected to the surface of the first connecting pipe 3, and a second branch pipe 52 connected to the surface of the second connecting pipe 4. There are four first branch pipes 51 and two second branch pipes 52, arranged in an alternating pattern. Atomizing nozzles 53 are connected to the surfaces of both the first and second branch pipes 51 and 52, with more atomizing nozzles 53 on the surface of the first branch pipe 51 than on the surface of the second branch pipe 52. Under this action, the low-temperature chemical water inside the second connecting pipe 4 and the first connecting pipe 3 can flow into the inner cavities of the first and second branch pipes 51 and 52, and be sprayed through the atomizing nozzles 53 into the inner cavity of the condensing mechanism body 1. This allows the replenished low-temperature chemical water to exchange heat with the higher-temperature exhaust steam in a timely and sufficient manner, effectively improving the heat exchange efficiency of the condensing mechanism body. The vacuum level of 1 significantly reduces the oxygen content in the condensate. Furthermore, the specially designed first branch pipe 51 and second branch pipe 52 effectively reduce the overlap of the atomized water sprayed from the atomizing nozzle 53, allowing it to fill the inner cavity of the condensing mechanism body 1 as much as possible, thus improving the cooling efficiency of the condensing mechanism body 1. Connecting brackets 6 are fixedly connected to the surfaces of both the first branch pipe 51 and the second branch pipe 52. The two sides of the connecting brackets 6 are fixedly connected to the surface of the atomizing nozzle 53. Several connecting brackets 6 are used in conjunction with the atomizing nozzle 53. This effectively reduces the risk of the atomizing nozzle 53 falling off due to long-term use, ensuring the continuous and stable operation of the spraying mechanism 5, reducing system failures and downtime caused by the atomizing nozzle 53 falling off, and ensuring the continuity of the production process.

[0024] The control mechanism 7 includes a three-way pipe 71 connecting one end of the first connecting pipe 3 and the second connecting pipe 4. The three-way pipe 71 is used to access low-temperature chemical water. A first valve 72 is provided on the surface of the first connecting pipe 3, and a second valve 73 is provided on the surface of the second connecting pipe 4. Under this action, during the heating season, when the unit is operating at high load, the operator can open the first valve 72 and the second valve 73 to allow low-temperature chemical water to enter the inner cavity of both the first connecting pipe 3 and the second connecting pipe 4 simultaneously, so as to meet the large flow water demand of the unit under high load conditions and effectively improve the working efficiency of the condenser. During the non-heating season, the unit load is relatively low, and the water demand is correspondingly reduced. At this time, the operator can close the first valve 72 and open the second valve 73 to allow low-temperature chemical water to enter only the inner cavity of the second connecting pipe 4, thereby effectively improving the economic efficiency of the unit operation, reducing the unit power generation cost, and enhancing the stability of the unit, laying a solid foundation for the stable and efficient operation of the thermal power plant.

[0025] It is worth noting that the technical features such as the condensing mechanism body 1 proposed in this technical solution should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be selected using conventional methods in this field. This technical solution will not elaborate further.

[0026] Working Principle: During the heating season, when the unit is operating at high load, the operator can open the first valve 72 and the second valve 73, allowing low-temperature chemical water to simultaneously enter the inner cavities of the first connecting pipe 3 and the second connecting pipe 4. The water then flows into the inner cavities of the first branch pipe 51 and the second branch pipe 52, and is sprayed into the inner cavity of the condenser body 1 through the atomizing nozzle 53. This allows the added low-temperature chemical water to exchange heat with the higher-temperature exhaust steam in a timely and sufficient manner, effectively increasing the vacuum degree of the condenser body 1, significantly reducing the oxygen content in the condensate, and meeting the high flow rate requirements of the unit. The water replenishment requirement improves the working efficiency of the condensing unit body 1. During the non-heating season, when the unit load is relatively low and the water replenishment requirement is reduced, the staff can close the first valve 72 and open the second valve 73 to allow the low-temperature chemical water to enter only the inner cavity of the second connecting pipe 4 for spraying operations. This reduces unnecessary energy consumption and further improves the economic efficiency of the unit operation. It enables the condensing unit body 1 to maintain high and stable energy utilization efficiency even under low load operation during the non-heating season, providing strong support for the optimization and control of the overall operating cost of the thermal power plant.

[0027] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A condenser makeup water spraying device, comprising a condenser body (1) and a plurality of cooling pipes (2) disposed within its inner cavity, characterized in that, Also includes: A first connecting pipe (3) is fixedly connected to the inner wall of the condensing mechanism body (1), and a second connecting pipe (4) is fixedly connected to the inner wall of the condensing mechanism body (1). A spraying mechanism (5) for spraying low-temperature atomized chemical water into the inner cavity of the condensing mechanism body (1) is provided on the surface of the first connecting pipe (3). A control mechanism (7) that connects one end of the first connecting pipe (3) and the second connecting pipe (4) to adjust the spray flow rate of the spraying mechanism (5).

2. The condenser makeup water spraying device according to claim 1, characterized in that: The spraying mechanism (5) includes a first branch pipe (51) connected to the surface of the first connecting pipe (3), and a second branch pipe (52) connected to the surface of the second connecting pipe (4). Both the surface of the first branch pipe (51) and the surface of the second branch pipe (52) are connected to atomizing nozzles (53).

3. The condenser makeup water spraying device according to claim 1, characterized in that: The control mechanism (7) includes a three-way pipe (71) connecting one end of the first connecting pipe (3) and the second connecting pipe (4). The surface of the first connecting pipe (3) is provided with a first valve (72), and the surface of the second connecting pipe (4) is provided with a second valve (73).

4. A condenser makeup water spraying device according to claim 2, characterized in that: The first branch pipe (51) and the second branch pipe (52) are both fixedly connected to the surface of the connecting frame (6), and the two sides of the connecting frame (6) are fixedly connected to the surface of the atomizing nozzle (53).

5. A condenser makeup water spraying device according to claim 2, characterized in that: The first branch pipe (51) and the second branch pipe (52) are designed in an alternating manner.

6. A condenser makeup water spraying device according to claim 2, characterized in that: The number of atomizing nozzles (53) on the surface of the first branch pipe (51) is greater than the number of atomizing nozzles (53) on the surface of the second branch pipe (52).

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