Power plant circulating water monitoring and adjusting integrated device

Abstract

The invention relates to the field of power plant circulating water treatment, in particular to a power plant circulating water monitoring and adjusting integrated device which comprises a base, a main water tank arranged in the middle of the base and a heat exchange assembly detachably arranged on the outer side of a buffer water tank. The water inlet side and the water outlet side of the main water tank are respectively connected with at least one set of buffer water tanks, and the water outlet ends of the buffer water tanks are connected with the heat exchange assembly. The flowing-in circulating water is heated through the buffering water tank, and / or the heat exchange assembly is cooled through the air cooling assembly. By means of the buffer water tank, an independent water tank can be arranged outside the water tank body, a directly output water source is subjected to cooling or heating adjustment through the water tank, and the amount of water treated through the adjustment is small.

Description

Technical Field

[0001] The invention relates to the field of circulating water treatment in power plants, and in particular to an integrated device for monitoring and regulating circulating water in power plants. Background Art

[0002] In the construction of a power plant, the safety of its operation is a necessary consideration in the early stages of construction. In the design of a power plant, the circulating water system is an important part of the initial design due to its high temperature characteristics during operation.

[0003] In the prior art, cooling devices and heating devices are usually used in combination to treat the circulating water of power plants, usually by air cooling and heater heating, but the heating or cooling equipment is usually inside the water tank, that is, when cooling or heating treatment is performed, the entire water tank is operated, thereby reducing the timeliness of the temperature regulation of the circulating water and reducing the responsiveness of the power plant to abnormal temperatures. Therefore, it is necessary to design an integrated device for monitoring and regulating circulating water in power plants. Summary of the invention

[0004] The present invention aims at the deficiencies in the prior art and provides the following technical solutions:

[0005] A power plant circulating water monitoring and regulating integrated device comprises: a base, a main water tank arranged in the middle of the base, and a heat exchange component detachably arranged outside a buffer water tank.

[0006] Specifically, an air cooling component and at least two groups of regulating boxes are fixed to the upper end surface of the base, a buffer water tank is arranged inside the regulating box, the water outlet side and the water inlet side of the main water tank are respectively connected to at least one group of buffer water tanks, one end of the water outlet of the buffer water tank is connected to the heat exchange component, when the water temperature is abnormal, the inflowing circulating water is heated by the buffer water tank and / or the heat exchange component is cooled by the air cooling component.

[0007] As an improvement of the above technical solution, the main water tank includes a side baffle, a sealing plate and a cover plate. The sealing plate closes both sides of the side baffle to form a box body with an upper opening. The cover plate is detachably fixed to the upper opening of the box body to close the opening. A plurality of heat conduction plates are arranged inside the box body.

[0008] As an improvement of the above technical solution, the heat exchange component includes a plurality of U-shaped fins, each of which has two branches. The fins are inserted downward from the top of the box body, and a plurality of heat-conducting parts are integrally formed on both sides of the side baffle. A heat-conducting groove is integrally formed on the inner side wall of the branch, and the heat-conducting part is inserted into the interior of the heat-conducting groove.

[0009] As an improvement of the above technical solution, the regulating box includes an outer box, an inner cavity is opened inside the outer box, the buffer water tank is arranged inside the inner cavity, a closing cover for closing the inner cavity is provided at the upper end of the outer box, and a heating tube is spirally wound on the outer side of the buffer water tank.

[0010] As an improvement of the above technical solution, the main water tank has at least two water pipes, which are respectively connected to two heating pipes. The outer side of the fin is connected with two groups of heat exchange tubes wrapped around the outside of the main water tank, and one side of the two buffer water tanks is respectively connected to a group of heat exchange tubes.

[0011] As an improvement of the above technical solution, the end of one group of the heat exchange tubes is a water outlet, and the end of the other group of the heat exchange tubes is a water inlet. The water outlet is used to transport treated circulating water to the outside, and the water inlet is used to recover the refluxed circulating water. The heat exchange tubes with the water inlet at the end are located at the top, and the heat exchange tubes with the water outlet at the end are located at the bottom.

[0012] As an improvement of the above technical solution, the air cooling component is arranged below the fins, the wind direction of the air cooling component is toward the side away from the base, and the air cooling component includes at least two groups, and the two groups of air cooling components are located on both sides of the main water tank.

[0013] As an improvement of the above technical solution, the air cooling component includes a positioning frame and a heat dissipation fan, the positioning frame is arranged on the upper end surface of the base, and the heat dissipation fan is fixed on the inner side of the positioning frame.

[0014] Beneficial effects of the present invention:

[0015] By setting up a buffer water tank, an independent water tank can be set outside the water tank body, and the directly output water source can be cooled or heated by this water tank. The amount of water processed by this regulation is small, so the internal water source can be processed in a shorter time, and the subsequent incoming water source can also be processed synchronously, which reduces the impact of the water tank itself while ensuring the processing efficiency and meeting the temperature adjustment function of the power plant under abnormal conditions. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is the exploded structure diagram of the present invention;

[0018] Figure 3 for Figure 2 The enlarged structure diagram at A in the middle;

[0019] Figure 4 for Figure 2 Enlarged structural diagram of point B in the middle.

[0020] Figure numerals: 10, base; 11, air-cooling assembly; 111, positioning frame; 112, cooling fan; 12, adjustment box; 121, outer box; 122, inner cavity; 123, closing cover; 124, buffer water tank; 125, heating pipe; 20, main water tank; 21, side baffle; 211, heat conduction plate; 212, heat conduction part; 22, sealing plate; 23, water pipe; 24, cover plate; 30, heat exchange assembly; 31, fins; 311, branch; 312, heat conduction groove; 32, heat exchange tube; 321, water outlet; 322, water inlet. DETAILED DESCRIPTION

[0021] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0022] In the prior art, cooling devices and heating devices are usually used in combination to treat the circulating water of power plants, usually by air cooling and heater heating, but the heating or cooling equipment is usually inside the water tank, that is, when cooling or heating treatment is performed, the entire water tank is operated, thereby reducing the timeliness of the temperature regulation of the circulating water and reducing the responsiveness of the power plant to abnormal temperatures. Therefore, it is necessary to design an integrated device for monitoring and regulating circulating water in power plants.

[0023] See also Figure 1-4 , provides an integrated device for monitoring and regulating circulating water in a power plant, including: a base 10, a main water tank 20 arranged in the middle of the base 10, and a heat exchange component 30 detachably arranged on the outside of a buffer water tank 124.

[0024] Specifically, an air cooling component 11 and at least two groups of regulating boxes 12 are fixed to the upper end surface of the base 10, a buffer water tank 124 is arranged inside the regulating box 12, and the water outlet side and the water inlet side of the main water tank 20 are respectively connected to at least one group of buffer water tanks 124, and one end of the water outlet of the buffer water tank 124 is connected to the heat exchange component 30. When the water temperature is abnormal, the inflowing circulating water is heated by the buffer water tank 124 and / or the heat exchange component 30 is cooled by the air cooling component 11.

[0025] The water source flowing out of or into the buffer water tank 124 is cooled by the air cooling component. When the water temperature is abnormal, such as overheating of the power plant, lower temperature circulating water is required for treatment. The water source sent out of the buffer water tank 124 is cooled by the air cooling component 11. After the temperature is lowered, it flows into the position that needs to be cooled. In addition, when the power plant is just started, it is usually necessary to preset the relevant equipment to speed up the startup. In this case, the circulating water inside the buffer water tank 124 can be heated, and the heated circulating water enters the corresponding position in the power plant to preheat the equipment. Since the water source is processed in the buffer water tank 124, the speed is relatively faster. Although the flow rate is relatively slow, the temperature of the water source rises faster and more stably, so the speed of heating and cooling the equipment is faster.

[0026] In one embodiment, see Figures 1 to 3 Specifically, the main water tank 20 includes a side baffle 21, a sealing plate 22 and a cover plate 24. The sealing plate 22 closes both sides of the side baffle 21 to form a box body with an upper opening. The cover plate 24 is detachably fixed to the upper opening of the box body to close the opening. A plurality of heat conduction plates 211 are arranged inside the box body.

[0027] The side baffle 21 cooperates with the sealing plate 22 and the cover plate 24 to form a closed and detachable box structure, which makes subsequent cleaning and disassembly operations more convenient and quick.

[0028] Based on the above scheme, further, please refer to Figure 2 and Figure 3 The regulating box 12 includes an outer box 121, an inner cavity 122 is opened inside the outer box 121, a buffer water tank 124 is arranged inside the inner cavity 122, a closing cover 123 for closing the inner cavity 122 is arranged at the upper end of the outer box 121, and a heating pipe 125 is spirally wound around the outer side of the buffer water tank 124.

[0029] That is, the buffer water tank 124 is heated by the heating tube 125 in a spirally wound manner. When water flows out from the main water tank 20, if heating is required, the inflowing water is heated by the spirally wound heating tube 125. When heating is not required, the water inside the buffer water tank 124 is kept warm at a preset temperature. The outer box 121 isolates the buffer water tank 124 to prevent external factors from affecting the buffer water tank 124.

[0030] In the above scheme, although the outflow and inflow water sources can be treated, the heat of the water tank itself is not treated. In this case, the temperature inside the water tank cannot be adjusted with the whole. In this case, the energy consumed in heating and cooling the water source during the whole cycle is too large, which does not conform to the principle of environmental protection. In order to avoid this problem, please refer to Figure 2 and Figure 3 Specifically, the heat exchange component 30 includes a plurality of U-shaped fins 31, each of the fins 31 having two branches 311, the fins 31 are inserted downward from the top of the box body, a plurality of heat conducting parts 212 are integrally formed on both sides of the side baffle 21, a heat conducting groove 312 is integrally formed on the inner wall of the branch 311, and the heat conducting part 212 is inserted into the interior of the heat conducting groove 312.

[0031] Heat is exchanged through the heat exchange assembly 30, and heat is transferred through the cooperation between the heat conduction groove 312 and the branch 311. The internal heat can be transferred through the heat conduction plate 211 and finally flow to the position of the fin 31. Since the heat is transferred, it is only necessary to heat or cool the fin 31 to achieve the cooling and heating treatment of the main water tank 20. Combined with the design of the buffer water tank 124, further, please refer to Figures 2 to 4 Specifically, the main water tank 20 has at least two water pipes 23, and the two water pipes 23 are respectively connected to the two heating pipes 125. The outer side of the fin 31 is connected with two groups of heat exchange tubes 32 wound around the outside of the main water tank 20, and one side of the two buffer water tanks 124 is respectively connected to a group of heat exchange tubes 32.

[0032] Since the connection between the buffer water tank 124 and the heat exchange tube 32 is as follows Figure 3 As shown, it is located below the buffer water tank 124, so the buffer water tank 124 can serve as a temporary water source. After some equipment in the power plant is shut down, the water source inside the buffer water tank 124 can be insulated, so that it can be quickly preheated when it is turned on next time. When the power plant is in working condition, such as in the cold season or some places with lower temperatures, the water source inside the buffer water tank 124 is always in a high temperature state. In this case, the water source always provides heating for the equipment to ensure that the equipment can maintain a normal operating temperature in a low temperature environment.

[0033] The through-entanglement state between the fin 31 and the heat exchange tube 32 is as follows: Figure 1 , Figure 2 and Figure 3As shown, the heat exchange tubes 32 are divided into two groups, one of which is the outlet water and the other is the inlet water. The outlet water is usually in a low-temperature state and is therefore located at the bottom of the main water tank 20, while the inlet water is usually high-temperature water and is located at the upper part of the main water tank 20. In this way, when low-temperature cooling is required, the output water source is low-temperature water. When it flows into the heat exchange tubes 32, the lower heat exchange tubes 32 are always in a low-temperature state. After the upward airflow from the bottom passes through, a low-temperature airflow will be formed, and the high-temperature water returning from the upper part will be cooled by the upstream low-temperature airflow when passing through the upper heat exchange tubes 32. When it flows back to the main water tank 20, it is cooled. When high-temperature heating is required, the output water temperature is higher. The returning water source usually has a lower water temperature due to low-temperature heat exchange. In this case, a high-temperature airflow will be formed after the upward airflow from the bottom. The low-temperature water flowing back from the top will be heated by the upstream high-temperature airflow when passing through the upper heat exchange tube 32. Therefore, when it flows back to the main water tank 20, the overall temperature of the entire main water tank 20 will rise, reducing the energy consumption of the main water tank 20 during heating and cooling.

[0034] Therefore, when designing, the layered design of the heat exchange tube 32 is taken into consideration. Figures 1 to 3 Specifically, one group of heat exchange tubes 32 ends at a water outlet 321, and the other group of heat exchange tubes 32 ends at a water inlet 322. The water outlet 321 is used to transport treated circulating water to the outside, and the water inlet 322 is used to recover the refluxed circulating water. The heat exchange tubes 32 ending at the water inlet 322 are located at the top, and the heat exchange tubes 32 ending at the water outlet 321 are located at the bottom.

[0035] This can ensure that the heat exchange tubes 32 do not affect each other and can achieve the expected effect of the above solution.

[0036] In one embodiment, see Figure 1 and Figure 2 Specifically, the air cooling component 11 is arranged below the fin 31, the wind direction of the air cooling component 11 is toward the side away from the base 10, the air cooling component 11 includes at least two groups, the two groups of air cooling components 11 are located on both sides of the main water tank 20, the air cooling component 11 includes a positioning frame 111 and a heat dissipation fan 112, the positioning frame 111 is arranged on the upper end surface of the base 10, and the heat dissipation fan 112 is fixed to the inner side of the positioning frame 111.

[0037] That is, two sets of air cooling components 11 are respectively arranged on both sides for cooling, and the position of the heat dissipation fan 112 is further restricted by the positioning frame 111. Usually, the positioning frame 111 is a rectangular frame structure, and the motor housing of the heat dissipation fan 112 is fixed to the positioning frame 111 by bolts, and then the positioning frame 111 is fixed to the base 10 by bolts.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them. Anyone familiar with the technology can modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An integrated device for monitoring and regulating circulating water in a power plant, characterized in that: include: A base (10), wherein an air cooling assembly (11) and at least two groups of regulating boxes (12) are fixed to the upper end surface of the base (10), and a buffer water tank (124) is arranged inside the regulating box (12); A main water tank (20) disposed in the middle of the base (10), wherein the water outlet side and the water inlet side of the main water tank (20) are respectively connected to at least one set of buffer water tanks (124); A heat exchange component (30) is detachably arranged outside the buffer water tank (124), and one end of the water outlet of the buffer water tank (124) is connected to the heat exchange component (30); When water temperature abnormality occurs, the inflowing circulating water is heated by the buffer water tank (124) and / or the heat exchange component (30) is cooled by the air cooling component (11).

2. The integrated device for monitoring and regulating circulating water in a power plant according to claim 1, characterized in that: The main water tank (20) comprises a side baffle (21), a sealing plate (22) and a cover plate (24); the sealing plate (22) seals two sides of the side baffle (21) to form a box body with an upper opening; the cover plate (24) is detachably fixed to the upper opening of the box body to seal the opening; a plurality of heat conduction plates (211) are arranged inside the box body.

3. The integrated device for monitoring and regulating circulating water in a power plant according to claim 2, characterized in that: The heat exchange assembly (30) comprises a plurality of U-shaped fins (31), wherein the fins (31) have two branches (311), and the fins (31) are inserted downward from the top of the box body, and a plurality of heat-conducting parts (212) are integrally formed on both sides of the side baffle (21), and a heat-conducting groove (312) is integrally formed on the inner side wall of the branch (311), and the heat-conducting part (212) is inserted into the interior of the heat-conducting groove (312).

4. The integrated monitoring and regulating device for circulating water in a power plant according to claim 3 is characterized in that: The regulating box (12) comprises an outer box (121), an inner cavity (122) is provided inside the outer box (121), the buffer water tank (124) is arranged inside the inner cavity (122), a closing cover (123) for closing the inner cavity (122) is provided at the upper end of the outer box (121), and a heating pipe (125) is spirally wound around the outer side of the buffer water tank (124).

5. The integrated monitoring and regulating device for circulating water in a power plant according to claim 4 is characterized in that: The main water tank (20) has at least two water pipes (23), and the two water pipes (23) are respectively connected to two heating pipes (125). The outer side of the fin (31) is connected to two groups of heat exchange pipes (32) wound around the outer side of the main water tank (20). One side of the two buffer water tanks (124) is respectively connected to a group of heat exchange pipes (32).

6. The integrated device for monitoring and regulating circulating water in a power plant according to claim 5, characterized in that: The end of one group of the heat exchange tubes (32) is a water outlet (321), and the end of the other group of the heat exchange tubes (32) is a water inlet (322). The water outlet (321) is used to transport treated circulating water to the outside, and the water inlet (322) is used to recover the refluxed circulating water. The heat exchange tubes (32) whose ends are the water inlet (322) are located at the top, and the heat exchange tubes (32) whose ends are the water outlet (321) are located at the bottom.

7. The integrated monitoring and regulating device for circulating water in a power plant according to any one of claims 3 to 6, characterized in that: The air cooling component (11) is arranged below the fin (31), the wind direction of the air cooling component (11) is toward the side away from the base (10), and the air cooling component (11) includes at least two groups, and the two groups of air cooling components (11) are located on both sides of the main water tank (20).

8. The integrated monitoring and regulating device for circulating water in a power plant according to claim 7 is characterized in that: The air cooling component (11) comprises a positioning frame (111) and a heat dissipation fan (112); the positioning frame (111) is arranged on the upper end surface of the base (10); and the heat dissipation fan (112) is fixed on the inner side of the positioning frame (111).

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