Intercooling tower with interconnected water feeding head cooling fan section and water feeding tail cooling fan section

Abstract

The utility model discloses an indirect cooling tower with a water feeding head cooling fan section and a water feeding tail cooling fan section interconnected. The indirect cooling tower comprises a tower drum, a water feeding system, a water return system, a cooling fan section system and a cooling fan section head-tail interconnection system. The water feeding system comprises a water feeding main pipe and water feeding branch pipes; the water return system comprises a water return main pipe and water return branch pipes; the cooling fan section system comprises N cooling fan sections, and the cooling fan sections are connected with the water feeding main pipe through water feeding branch pipes and connected with the water returning main pipe through water returning branch pipes. And the cooling fan section head-tail interconnection system comprises a cooling fan section interconnection pipe, a flow meter and a valve, and is used for connecting the water feeding head cooling fan section and the water feeding tail cooling fan section. Due to the fact that the water distribution pipeline of the indirect cooling tower is long, the flow of the head-end water feeding mother pipe of the unit is high, and the flow of the tail-end water feeding mother pipe is low, the heat load of the water feeding head cooling fan section is shared in summer, the freezing risk of the low-pressure cooling fan section is reduced in winter, the heat exchange effect of the indirect cooling tower is improved, and the operation back pressure of the unit is reduced. And the operation safety and economy of the power plant are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of indirect cooling towers, in particular to an indirect cooling tower with a water supply head cooling fan section and a water supply tail cooling fan section interconnected. Background Art

[0002] The power industry is not only a major consumer of primary energy, but also consumes a lot of water resources. China is a country with very scarce water resources, with per capita water resources less than a quarter of the world average. Air cooling technology has gradually gained attention for its superior water-saving performance, especially in my country's coal-rich and water-scarce areas, where indirect air-cooling units have developed rapidly. The basic principle is to indirectly use natural air to cool the exhaust steam of the steam turbine through a series of adjacent fin-tube radiators, also known as a dry cooling system. The natural ventilation indirect air cooling system uses the suction force generated by the difference in air density inside and outside the intercooling tower to drive the ambient air through the air-cooling radiator to achieve heat exchange. The indirect air cooling system has the advantages of less plant electricity consumption, no noise pollution, small back pressure changes and low back pressure. With the advancement of technology and the continuous decline in investment costs, the number of indirect air-cooling units has gradually increased, which is a new trend in the development of air-cooling units in my country.

[0003] The refrigerant medium of the intercooler is air. When the system is in operation, it is affected by high temperatures in summer, strong winds and low temperatures in winter, which threatens the safety and economy of the unit operation. With the development of intercoolers, the size of indirect air cooling has been further increased, resulting in the growth of the circulating water pipeline entering the intercooler. Since the first cooling fan section through which the circulating water flows is close to the water inlet main pipe, its pressure is high and the circulating water flow is large, and the last cooling fan section through which the circulating water flows is far from the water inlet main pipe, its pressure is low and the circulating water flow is small, the circulating water flow rate between the first cooling fan section and the last cooling fan section through which the circulating water flows into the intercooler is quite different. Under summer conditions, the high-pressure cooling fan section has a poor heat exchange effect due to the large circulating water flow rate; under winter conditions, the low-pressure cooling fan section is prone to freezing and cracking of the cooling tube bundle due to the small circulating water flow rate. Summary of the invention

[0004] In order to solve the above problems, the utility model proposes an intercooling tower in which the cooling fan section at the head of the water supply and the cooling fan section at the tail of the water supply are interconnected. The high-pressure cooling fan section of the intercooling tower is connected with the low-pressure cooling fan section through a fan section interconnecting pipe, so that the low-pressure cooling fan section can share the flow rate of the high-pressure cooling fan section. In summer working conditions, the low-pressure cooling fan section can share the heat load of the high-pressure cooling fan section. In winter working conditions, the freezing risk of the low-pressure cooling fan section is reduced.

[0005] An intercooling tower with interconnected cooling fan segments at the head of the water supply and cooling fan segments at the tail of the water supply comprises a tower, a water supply system, a return water system, a cooling fan segment system, and a cooling fan segment head-to-tail interconnection system. The tower is a hyperbolic tower; the water supply system comprises a water supply mother pipe and a water supply branch pipe; the return water system comprises a return water mother pipe and a return water branch pipe; the cooling fan segment system comprises N cooling fan segments, which are respectively connected to the water supply mother pipe through the water supply branch pipe, and connected to the return water mother pipe through the return water branch pipe; the cooling fan segment head-to-tail interconnection system comprises cooling fan segment interconnection pipes, flow meters and valves, which are used to connect the cooling fan segments at the head of the water supply and the cooling fan segments at the tail of the water supply.

[0006] The upper water jelly tube includes a left upper water jelly tube and a right upper water jelly tube. The left upper water jelly tube is connected to NL cooling fan segments through NL upper water branch pipes. The first cooling fan segment corresponding to the left upper water jelly tube is the left upper water head cooling fan segment, and the NLth cooling fan segment corresponding to the left upper water jelly tube is the left upper water tail cooling fan segment; the right upper water jelly tube is connected to NR cooling fan segments through NR upper water branch pipes. The first cooling fan segment corresponding to the right upper water jelly tube is the right upper water head cooling fan segment, and the NLth cooling fan segment corresponding to the right upper water jelly tube is the right upper water tail cooling fan segment.

[0007] The cooling sector interconnecting pipes include a cooling sector water inlet interconnecting pipe and a cooling sector water return interconnecting pipe.

[0008] One end of the cooling fan segment water inlet interconnecting pipe is connected to the upper water branch pipe of the upper water head cooling fan segment, and the other end is connected to the upper water branch pipe of the upper water tail cooling fan segment; one end of the cooling fan segment return water interconnecting pipe is connected to the return water branch pipe of the upper water head cooling fan segment, and the other end is connected to the return water branch pipe of the upper water tail cooling fan segment; the upper water branches of the upper water head cooling fan segment and the upper water tail cooling fan segment are connected through valves and the fan segment water inlet interconnecting pipe, and the return water branches of the upper water head cooling fan segment and the upper water tail cooling fan segment are connected through valves and the fan segment return water interconnecting pipe, thereby realizing the interconnection of the two cooling fan segments.

[0009] The cooling sector water inlet interconnecting pipe is provided with an outlet valve.

[0010] The cooling fan section return water interconnecting pipe is provided with an inlet valve.

[0011] The cooling fan segment interconnected water pipe is provided with a flow meter for measuring and monitoring the circulating water flow through the cooling fan segment water inlet interconnected pipe, so as to control the opening of the cooling fan segment water inlet interconnected pipe outlet valve.

[0012] The cooling fan segment interconnected return pipe is provided with a flow meter for measuring and monitoring the circulating water flow rate flowing through the cooling fan segment return interconnected pipe, so as to control the opening of the inlet valve of the cooling fan segment return interconnected pipe and reasonably control the circulating water flow rate of the cooling fan segment at the head of the water supply and the cooling fan segment at the tail of the water supply.

[0013] The valve types include V-type ball valve, butterfly valve, gate valve, and plunger valve; the flow meter types include electromagnetic flow meter, ultrasonic flow meter, and orifice flow meter.

[0014] The utility model discloses an intercooling tower with interconnected cooling fan sections at the head of the water supply and cooling fan sections at the tail of the water supply, comprising a tower, a water supply system, a water return system, cooling fan sections, and a cooling fan section head-to-tail interconnection system. The water supply system comprises a water supply mother pipe and a water supply branch pipe; the water return system comprises a water return mother pipe and a water return branch pipe; the cooling fan sections are N heat dissipation fan sections, which are respectively connected to the water supply mother pipe through the water supply branch pipe and connected to the water return mother pipe through the water return branch pipe; the cooling fan section closest to the water supply mother pipe is a high-pressure cooling fan section; the cooling fan section farthest from the water supply mother pipe is a low-pressure cooling fan section; the cooling fan section head-to-tail interconnection system comprises a flow meter, a valve, and a fan section interconnection pipe. Since the water distribution pipeline of the intercooler is long, the flow rate of the jellyfish pipe at the head end of the unit is high, and the flow rate of the jellyfish pipe at the tail end is low. The utility model shares the heat load of the high-pressure cooling fan section in summer, reduces the freezing risk of the low-pressure cooling fan section in winter, increases the heat exchange effect of the intercooler, reduces the operating back pressure of the unit, and improves the safety and economy of the overall operation of the power plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a plan view of an indirect cooling tower in which the cooling fan section at the head of the water supply and the cooling fan section at the tail of the water supply are interconnected.

[0016] Figure 2 This is a plan view of the intercooler tower that interconnects the left side upper water head cooling fan section with the left side upper water tail cooling fan section.

[0017] Figure 3 It is a plan view of the intercooling tower in which the left water head cooling fan section is interconnected with the left water tail cooling fan section, and the right water head cooling fan section is interconnected with the right water tail cooling fan section.

[0018] Figure 4 This is a plan view of the intercooler tower that interconnects the cooling fan section at the head of the water supply on the right and the cooling fan section at the tail of the water supply on the left.

[0019] Figure 5 The plan view of the intercooler tower is shown in which the left water supply head cooling fan is interconnected with the left water supply tail cooling fan section water supply branch pipe, and the right water supply head cooling fan is interconnected with the right water supply tail cooling fan section water supply branch pipe.

[0020] In the figure: 1—upper water mother pipe, 2—return water mother pipe, 3—upper water branch pipe, 4—return water branch pipe, 5—cooling sector water inlet interconnection pipe outlet valve, 6—cooling sector water return interconnection pipe inlet valve, 7—cooling sector water inlet interconnection pipe, 8—cooling sector water return interconnection pipe, 9—cooling sector water inlet interconnection pipe flowmeter, 10—cooling sector water return interconnection pipe flowmeter, 11—left upper water mother pipe, 12—right upper water mother pipe. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] Figure 1As shown, an intercooling tower with interconnected cooling fan segments at the head of the water supply and cooling fan segments at the tail of the water supply comprises a tower, a water supply system, a return water system, a cooling fan segment system, and a cooling fan segment head-to-tail interconnection system. The tower is a hyperbolic tower; the water supply system comprises an upper water jelly pipe 1 and an upper water branch pipe 3; the return water system comprises a return water jelly pipe 2 and a return water branch pipe 4; the cooling fan segment system comprises N cooling fan segments, which are respectively connected to the upper water jelly pipe 1 through the upper water branch pipe 3, and are connected to the return water jelly pipe 2 through the return water branch pipe 4; the cooling fan segment head-to-tail interconnection system comprises cooling fan segment interconnection pipes, flow meters and valves for connecting the cooling fan segments at the head of the water supply and the cooling fan segments at the tail of the water supply; the upper water jelly pipe 1 comprises a left upper water jelly pipe 11 and a right upper water jelly pipe 12, the left upper water jelly pipe 11 is connected to NL cooling fan segments through NL upper water branch pipes 3, and the left upper water jelly pipe 11 corresponds to The first cooling fan section is the left water header cooling fan section, and the NLth cooling fan section corresponding to the left water header 11 is the left water tail cooling fan section; the right water header 12 is connected to the NR cooling fan sections through NR water header branches, and the first cooling fan section corresponding to the right water header 12 is the right water header cooling fan section, and the NLth cooling fan section corresponding to the right water header is the right water tail cooling fan section; the cooling fan section interconnecting pipe includes a cooling fan section water inlet interconnecting pipe 7 and a cooling fan section return water interconnecting pipe 8, one end of the cooling fan section water inlet interconnecting pipe 7 is connected to the water header cooling fan section water header branch, and the other end is connected to the water tail cooling fan section The water supply branch pipe and the cooling fan section return water interconnection pipe 8 are connected to the return water branch pipe of the cooling fan section at the water supply head, and the other end is connected to the return water branch pipe of the cooling fan section at the water supply tail; the water supply branches of the cooling fan section at the water supply head and the cooling fan section at the water supply tail are connected through valves and the cooling fan section water supply interconnection pipe, and the return water branches of the cooling fan section at the water supply head and the cooling fan section at the water supply tail are connected through valves and the cooling fan section return water interconnection pipe, thereby realizing the interconnection of the two cooling fan sections; the cooling fan section water supply interconnection pipe 7 is provided with a cooling fan section water supply interconnection pipe outlet valve 5, the cooling fan section return water interconnection pipe 8 is provided with a cooling fan section return water interconnection pipe inlet valve 6, and the cooling fan section water supply interconnection pipe 7 is provided with A cooling fan section water inlet interconnecting pipe flowmeter 9 is provided for measuring and monitoring the circulating water flow through the cooling fan section water inlet interconnecting pipe, so as to control the opening of the cooling fan section water inlet interconnecting pipe outlet valve 5; a cooling fan section water return interconnecting pipe 8 is provided with a cooling fan section water return interconnecting pipe flowmeter 10 for measuring and monitoring the circulating water flow through the cooling fan section water return interconnecting pipe, so as to control the opening of the cooling fan section water return interconnecting pipe inlet valve 6 and reasonably control the circulating water flow of the water supply head cooling fan section and the water supply tail cooling fan section; the valve types are V-type ball valve, butterfly valve, gate valve and plunger valve; the flowmeter types are electromagnetic flowmeter, ultrasonic flowmeter and orifice flowmeter.

[0023] Example 1: An intercooler tower in which the left-side upstream water head cooling fan and the left-side upstream water tail cooling fan section are interconnected.

[0024] like Figure 2As shown, an intercooling tower with interconnected cooling fan segments at the head of the water supply and cooling fan segments at the tail of the water supply comprises a tower, a water supply system, a return water system, a cooling fan segment system, and a cooling fan segment head-to-tail interconnection system. The tower is a hyperbolic tower; the water supply system comprises an upper water jellyfish pipe 1 and an upper water branch pipe 3; the return water system comprises a return water jellyfish pipe 2 and a return water branch pipe 4; the cooling fan segment system comprises 7 cooling fan segments, which are respectively connected to the upper water jellyfish pipe 1 through the upper water branch pipe 3, and are connected to the return water jellyfish pipe 2 through the return water branch pipe 4; the cooling fan segment head-to-tail interconnection system comprises cooling fan segment interconnection pipes, flow meters and valves for connecting the cooling fan segments at the head of the water supply and the cooling fan segments at the tail of the water supply; the upper water jellyfish pipe 1 comprises a left upper water jellyfish pipe 11 and a right upper water jellyfish pipe 12, the left upper water jellyfish pipe 11 is connected to 4 cooling fan segments through 4 upper water branch pipes 3, and the left upper water jellyfish pipe 12 is connected to 4 cooling fan segments through 4 upper water branch pipes 3. The first cooling sector segment corresponding to the tube 11 is the left water header cooling sector segment, and the fourth cooling sector segment corresponding to the left water header 11 is the left water tail cooling sector segment; the right water header 12 is connected to the three cooling sectors through three water header branches, the first cooling sector segment corresponding to the right water header 12 is the right water header cooling sector segment, and the third cooling sector segment corresponding to the right water header is the right water tail cooling sector segment; the cooling sector segment interconnecting pipe includes a cooling sector water inlet interconnecting pipe 7 and a cooling sector return water interconnecting pipe 8, one end of the cooling sector water inlet interconnecting pipe 7 is connected to the first cooling sector water header water branch pipe, and the other end is connected to the cooling sector return water branch pipe. The first end is connected to the water supply pipe of the 4th cooling fan section at the water supply tail; one end of the cooling fan section return water interconnection pipe 8 is connected to the return water branch pipe of the 1st cooling fan section at the water supply head, and the other end is connected to the return water branch pipe of the 4th cooling fan section at the water supply tail; the water supply pipes of the cooling fan section at the water supply head and the cooling fan section at the water supply tail are connected through valves and the cooling fan section inlet interconnection pipe, and the return water branches of the cooling fan section at the water supply head and the cooling fan section at the water supply tail are connected through valves and the cooling fan section return water interconnection pipe, thereby realizing the interconnection of the two cooling fan sections; the cooling fan section inlet interconnection pipe 7 is provided with a cooling fan section inlet interconnection pipe outlet valve 5, and the cooling fan section return water interconnection pipe 8 is provided with a cooling The fan segment return water interconnecting pipe inlet valve 6 and the cooling fan segment inlet water interconnecting pipe 7 are provided with a cooling fan segment inlet water interconnecting pipe flowmeter 9 for measuring and monitoring the circulating water flow through the fan segment interconnecting pipe, so as to control the opening of the cooling fan segment inlet water interconnecting pipe outlet valve 5; the cooling fan segment return water interconnecting pipe 8 is provided with a cooling fan segment return water interconnecting pipe flowmeter 10 for measuring and monitoring the circulating water flow through the fan segment interconnecting pipe, so as to control the opening of the cooling fan segment return water interconnecting pipe inlet valve 6 and reasonably control the circulating water flow of the cooling fan segment at the water supply head and the cooling fan segment at the water supply tail; the valve type is a butterfly valve; the flowmeter type is an electromagnetic flowmeter.

[0025] Embodiment 2 is an intercooling tower in which the left side water supply head cooling fan is interconnected with the left side water supply tail cooling fan section, and the right side water supply head cooling fan is interconnected with the right side water supply tail cooling fan section.

[0026] like Figure 3As shown, an intercooling tower with interconnected cooling fan segments at the head of the water supply and cooling fan segments at the tail of the water supply comprises a tower, a water supply system, a return water system, a cooling fan segment system, and a cooling fan segment head-to-tail interconnection system. The tower is a hyperbolic tower; the water supply system comprises an upper water jelly pipe 1 and an upper water branch pipe 3; the return water system comprises a return water jelly pipe 2 and a return water branch pipe 4; the cooling fan segment system comprises 7 cooling fan segments, which are respectively connected to the upper water jelly pipe 1 through the upper water branch pipe 3, and are connected to the return water jelly pipe 2 through the return water branch pipe 4; the cooling fan segment head-to-tail interconnection system comprises cooling fan segment interconnection pipes, flow meters and valves, which are used to connect the cooling fan segments at the head of the water supply and the cooling fan segments at the tail of the water supply. The upper water jelly pipe 1 comprises a left upper water jelly pipe 11 and a right upper water jelly pipe 12. The left upper water jelly pipe 11 is connected to 4 cooling fan segments through 4 upper water branch pipes 3. The first cooling fan segment corresponding to the left upper water jelly pipe 11 is the left upper water head cooling fan segment. The 4th cooling sector segment corresponding to the mother pipe 11 is the cooling sector segment at the tail of the left water supply; the mother pipe 12 on the right is connected to the 3 cooling sectors through 3 water supply branches, the first cooling sector segment corresponding to the mother pipe 12 on the right is the cooling sector segment at the head of the water supply, and the 3rd cooling sector segment corresponding to the mother pipe on the right is the cooling sector segment at the tail of the water supply; the cooling sector segment interconnecting pipes include a cooling sector water inlet interconnecting pipe 7 and a cooling sector water return interconnecting pipe 8, one end of the cooling sector water inlet interconnecting pipe 7 is connected to the water supply branch pipe of the 1st cooling sector segment at the head of the water supply, and the other end is connected to the water supply branch pipe of the 4th cooling sector segment at the tail of the water supply; one end of the cooling sector water return interconnecting pipe 8 is connected to the return water branch pipe of the 1st cooling sector segment at the head of the water supply, and the other end is connected to the return water branch pipe of the 4th cooling sector segment at the tail of the water supply Cooling fan section return water branch pipe; one end of the cooling fan section water inlet interconnection pipe 7 is connected to the 7th cooling fan section water inlet branch pipe of the upper water head, and the other end is connected to the 5th cooling fan section water inlet branch pipe of the upper water tail; one end of the cooling fan section return water interconnection pipe 8 is connected to the 7th cooling fan section return water branch pipe of the upper water head, and the other end is connected to the 5th cooling fan section return water branch pipe of the upper water tail; the upper water branch pipe 3 of the upper water head cooling fan section and the upper water tail cooling fan section is connected to the cooling fan section water inlet interconnection pipe 7 through the cooling fan section water inlet interconnection pipe outlet valve 5, and the return water branch pipe 4 of the upper water head cooling fan section and the upper water tail cooling fan section is connected to the cooling fan section return water interconnection pipe 8 through the cooling fan section return water interconnection pipe inlet valve 6, thereby realizing the interconnection of the two cooling fan sections, and the cooling fan sections The water inlet interconnecting pipe 7 is provided with a cooling fan section water inlet interconnecting pipe outlet valve 5, the cooling fan section water return interconnecting pipe 8 is provided with a cooling fan section water return interconnecting pipe inlet valve 6, the cooling fan section water inlet interconnecting pipe 7 is provided with a flow meter 9 for measuring and monitoring the circulating water flow through the cooling fan section water inlet interconnecting pipe 7, so as to control the opening of the cooling fan section water inlet interconnecting pipe outlet valve 5, the cooling fan section water return interconnecting pipe 8 is provided with a flow meter 10 for measuring and monitoring the circulating water flow through the cooling fan section water return interconnecting pipe 8, so as to control the opening of the cooling fan section water return interconnecting pipe inlet valve 6, so as to reasonably control the circulating water flow of the cooling fan section at the water supply head and the cooling fan section at the water supply tail; the valve type is a butterfly valve; the flow meter type is an electromagnetic flow meter.

[0027] Example 3: An intercooler tower in which the cooling fan of the right upstream head section is interconnected with the cooling fan section of the left upstream tail section.

[0028] like Figure 4As shown, an intercooling tower with interconnected cooling fan segments at the head of the water supply and cooling fan segments at the tail of the water supply comprises a tower, a water supply system, a return water system, a cooling fan segment system, and a cooling fan segment head-to-tail interconnection system. The tower is a hyperbolic tower; the water supply system comprises an upper water jelly pipe 1 and an upper water branch pipe 3; the return water system comprises a return water jelly pipe 2 and a return water branch pipe 4; the cooling fan segment system comprises 7 cooling fan segments, which are respectively connected to the upper water jelly pipe 1 through the upper water branch pipe 3, and are connected to the return water jelly pipe 2 through the return water branch pipe 4; the cooling fan segment head-to-tail interconnection system comprises cooling fan segment interconnection pipes, flow meters and valves, which are used to connect the cooling fan segments at the head of the water supply and the cooling fan segments at the tail of the water supply. The upper water jelly pipe 1 comprises a left upper water jelly pipe 11 and a right upper water jelly pipe 12. The left upper water jelly pipe 11 is connected to 4 cooling fan segments through 4 upper water branch pipes 3. The first cooling fan segment corresponding to the left upper water jelly pipe 11 is the left upper water head cooling fan segment. The 4th cooling sector segment corresponding to the mother pipe 11 is the cooling sector segment at the tail of the left water supply; the mother pipe 12 on the right is connected to the 3 cooling sectors through 3 water supply branches, the first cooling sector segment corresponding to the mother pipe 12 on the right is the cooling sector segment at the head of the water supply, and the 3rd cooling sector segment corresponding to the mother pipe on the right is the cooling sector segment at the tail of the water supply; the cooling sector segment interconnecting pipes include a cooling sector water inlet interconnecting pipe 7 and a cooling sector water return interconnecting pipe 8, one end of the cooling sector water inlet interconnecting pipe 7 is connected to the water supply branch pipe of the 1st cooling sector segment at the head of the water supply, and the other end is connected to the water supply branch pipe of the 4th cooling sector segment at the tail of the water supply; one end of the cooling sector water return interconnecting pipe 8 is connected to the return water branch pipe of the 1st cooling sector segment at the head of the water supply, and the other end is connected to the return water branch pipe of the 4th cooling sector segment at the tail of the water supply Cooling fan section return water branch pipe; one end of the cooling fan section water inlet interconnection pipe 7 is connected to the 7th cooling fan section water inlet branch pipe of the upper water head, and the other end is connected to the 5th cooling fan section water inlet branch pipe of the upper water tail; one end of the cooling fan section return water interconnection pipe 8 is connected to the 7th cooling fan section return water branch pipe of the upper water head, and the other end is connected to the 5th cooling fan section return water branch pipe of the upper water tail; the upper water branch pipe 3 of the upper water head cooling fan section and the upper water tail cooling fan section is connected to the cooling fan section water inlet interconnection pipe 7 through the cooling fan section water inlet interconnection pipe outlet valve 5, and the return water branch pipe 4 of the upper water head cooling fan section and the upper water tail cooling fan section is connected to the cooling fan section return water interconnection pipe 8 through the cooling fan section return water interconnection pipe inlet valve 6, thereby realizing the interconnection of the two cooling fan sections, and the cooling fan sections The water inlet interconnecting pipe 7 is provided with a cooling fan section water inlet interconnecting pipe outlet valve 5, the cooling fan section water return interconnecting pipe 8 is provided with a cooling fan section water return interconnecting pipe inlet valve 6, the cooling fan section water inlet interconnecting pipe 7 is provided with a flow meter 9 for measuring and monitoring the circulating water flow through the cooling fan section water inlet interconnecting pipe 7, so as to control the opening of the cooling fan section water inlet interconnecting pipe outlet valve 5, the cooling fan section water return interconnecting pipe 8 is provided with a flow meter 10 for measuring and monitoring the circulating water flow through the cooling fan section water return interconnecting pipe 8, so as to control the opening of the cooling fan section water return interconnecting pipe inlet valve 6, so as to reasonably control the circulating water flow of the cooling fan section at the water supply head and the cooling fan section at the water supply tail; the valve type is a butterfly valve; the flow meter type is an electromagnetic flow meter.

[0029] Embodiment 4 is an intercooler tower in which the water branches of the left water head cooling fan section and the left water tail cooling fan section are interconnected, and the water branches of the right water head cooling fan section and the right water tail cooling fan section are interconnected.

[0030] like Figure 5 As shown, an intercooling tower with interconnected cooling fan segments at the head of the water supply and cooling fan segments at the tail of the water supply comprises a tower, a water supply system, a return water system, a cooling fan segment system, and a cooling fan segment head-to-tail interconnection system. The tower is a hyperbolic tower; the water supply system comprises an upper water mother pipe 1 and an upper water branch pipe 3; the return water system comprises a return water mother pipe 2 and a return water branch pipe 4; the cooling fan segment system comprises 7 cooling fan segments, which are respectively connected to the upper water mother pipe 1 through the upper water branch pipe 3, and are connected to the return water mother pipe 2 through the return water branch pipe 4; the cooling fan segment head-to-tail interconnection system comprises cooling fan segment interconnection pipes, flow meters and valves for connecting the cooling fan segments at the head of the water supply and the cooling fan segments at the tail of the water supply; the upper water mother pipe 1 comprises a left upper water mother pipe 11 and a right upper water mother pipe 12; The upper water jelly pipe 12; the left upper water jelly pipe 11 is connected to 4 cooling fan sections through 4 upper water branch pipes 3, the first cooling fan section corresponding to the left upper water jelly pipe 11 is the left upper water header cooling fan section, and the fourth cooling fan section corresponding to the left upper water jelly pipe 11 is the left upper water tail cooling fan section; the right upper water jelly pipe 12 is connected to 3 cooling fan sections through 3 upper water branch pipes, the first cooling fan section corresponding to the right upper water jelly pipe 12 is the right upper water header cooling fan section, and the third cooling fan section corresponding to the right upper water jelly pipe The cooling fan section is the cooling fan section at the tail of the water supply on the right side; the cooling fan section interconnection pipe includes a cooling fan section water inlet interconnection pipe 7 and a cooling fan section return water interconnection pipe 8; one end of the cooling fan section water inlet interconnection pipe 7 is connected to the water supply branch pipe of the first cooling fan section of the water supply head, and the other end is connected to the water supply branch pipe of the fourth cooling fan section at the tail of the water supply; one end of the cooling fan section water inlet interconnection pipe 7 is connected to the water supply branch pipe of the seventh cooling fan section at the water supply head, and the other end is connected to the water supply branch pipe of the fifth cooling fan section at the tail of the water supply; the cooling fan section at the water supply head and the cooling fan section at the tail of the water supply The upper water branch pipe 3 is connected with the cooling fan segment water inlet interconnection pipe outlet valve 5 and the cooling fan segment water inlet interconnection pipe 7, so as to realize the interconnection of the two cooling fan segments. The cooling fan segment water inlet interconnection pipe 7 is provided with a cooling fan segment water inlet interconnection pipe outlet valve 5. The cooling fan segment water inlet interconnection pipe 7 is provided with a flow meter 9 for measuring and monitoring the circulating water flow passing through the cooling fan segment water inlet interconnection pipe 7, so as to facilitate the control of the opening of the cooling fan segment water inlet interconnection pipe outlet valve 5; the valve type is a butterfly valve; the flow meter type is an electromagnetic flow meter.

[0031] An intercooling tower with interconnected cooling fan sections at the head of the water supply and cooling fan sections at the tail of the water supply comprises a tower, a water supply system, a water return system, a cooling fan section system, and a cooling fan section head-to-tail interconnection system. The water supply system comprises an upper water main pipe and an upper water branch pipe; the water return system comprises a return water main pipe and a return water branch pipe; the cooling fan section system comprises N cooling fan sections, which are respectively connected to the upper water main pipe through the upper water branch pipe, and are connected to the return water main pipe through the return water branch pipe; the cooling fan section head-to-tail interconnection system comprises a cooling fan section interconnection pipe, a flow meter and a valve, which connect the upper water main cooling fan section and the upper water tail cooling fan section. Since the water distribution pipeline of the intercooling tower is long, the flow rate of the upper water main pipe at the head end of the unit is high, and the flow rate of the upper water main pipe at the tail end is low. The utility model apportions the heat load of the upper water main cooling fan section in summer, reduces the freezing risk of the low-pressure cooling fan section in winter, increases the heat exchange effect of the intercooling tower, reduces the back pressure of the unit operation, and improves the safety and economy of the power plant operation.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary implementation cases, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the implementation cases should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An intercooling tower with interconnected cooling fan segments at the head of the water supply and cooling fan segments at the tail of the water supply, comprising a tower, a water supply system, a return water system, a cooling fan segment system, and a cooling fan segment head-to-tail interconnection system, wherein the tower is a hyperbolic tower; the water supply system comprises a water supply mother pipe and a water supply branch pipe; the return water system comprises a return water mother pipe and a return water branch pipe; the cooling fan segment system comprises N cooling fan segments, which are respectively connected to the water supply mother pipe through the water supply branch pipe, and are connected to the return water mother pipe through the return water branch pipe; the cooling fan segment head-to-tail interconnection system comprises a cooling fan segment interconnection pipe, a flow meter and a valve, which are used to connect the cooling fan segments at the head of the water supply and the cooling fan segments at the tail of the water supply.

2. The indirect cooling tower with interconnected cooling fan sections at the head of the water supply and cooling fan sections at the tail of the water supply according to claim 1, characterized in that: The upper water jelly tube includes a left upper water jelly tube and a right upper water jelly tube. The left upper water jelly tube is connected to NL cooling fan segments through NL upper water branch pipes. The first cooling fan segment corresponding to the left upper water jelly tube is the left upper water head cooling fan segment, and the NLth cooling fan segment corresponding to the left upper water jelly tube is the left upper water tail cooling fan segment; the right upper water jelly tube is connected to NR cooling fan segments through NR upper water branch pipes. The first cooling fan segment corresponding to the right upper water jelly tube is the right upper water head cooling fan segment, and the NRth cooling fan segment corresponding to the right upper water jelly tube is the right upper water tail cooling fan segment.

3. The indirect cooling tower with interconnected cooling fan sections at the head of the water supply and cooling fan sections at the tail of the water supply according to claim 1, characterized in that: The cooling sector interconnecting pipes include a cooling sector water inlet interconnecting pipe and a cooling sector water return interconnecting pipe.

4. The indirect cooling tower with interconnected cooling fan sections at the head of the water supply and cooling fan sections at the tail of the water supply according to claim 1, characterized in that: One end of the cooling fan segment water inlet interconnecting pipe is connected to the upper water branch pipe of the upper water head cooling fan segment, and the other end is connected to the upper water branch pipe of the upper water tail cooling fan segment; one end of the cooling fan segment return water interconnecting pipe is connected to the return water branch pipe of the upper water head cooling fan segment, and the other end is connected to the return water branch pipe of the upper water tail cooling fan segment; the upper water branches of the upper water head cooling fan segment and the upper water tail cooling fan segment are connected through valves and the fan segment water inlet interconnecting pipe, and the return water branches of the upper water head cooling fan segment and the upper water tail cooling fan segment are connected through valves and the fan segment return water interconnecting pipe, thereby realizing the interconnection of the two cooling fan segments.

5. The indirect cooling tower with interconnected cooling fan sections at the head of the water supply and cooling fan sections at the tail of the water supply according to claim 3, characterized in that: The cooling sector water inlet interconnecting pipe is provided with an outlet valve.

6. The indirect cooling tower with interconnected cooling fan sections at the head of the water supply and cooling fan sections at the tail of the water supply according to claim 3, characterized in that: The cooling fan section return water interconnecting pipe is provided with an inlet valve.

7. The indirect cooling tower with interconnected cooling fan sections at the head of the water supply and cooling fan sections at the tail of the water supply according to claim 3, characterized in that: The cooling fan segment interconnected water pipe is provided with a flow meter for measuring and monitoring the circulating water flow through the cooling fan segment water inlet interconnected pipe, so as to control the opening of the cooling fan segment water inlet interconnected pipe outlet valve.

8. The indirect cooling tower with interconnected cooling fan sections at the head of the water supply and cooling fan sections at the tail of the water supply according to claim 3, characterized in that: The cooling fan segment interconnected return pipe is provided with a flow meter for measuring and monitoring the circulating water flow rate flowing through the cooling fan segment return interconnected pipe, so as to control the opening of the inlet valve of the cooling fan segment return interconnected pipe and reasonably control the circulating water flow rate of the cooling fan segment at the head of the water supply and the cooling fan segment at the tail of the water supply.

9. The indirect cooling tower with interconnected cooling fan sections at the head of the water supply and cooling fan sections at the tail of the water supply according to claim 1, characterized in that: The valve types include V-type ball valve, butterfly valve, gate valve, and plunger valve; the flow meter types include electromagnetic flow meter, ultrasonic flow meter, and orifice flow meter.

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