Circulating water excess pressure efficient utilization device

Abstract

The utility model relates to the technical field of cooling tower circulating water excess pressure utilization, in particular to an efficient circulating water excess pressure utilization device which comprises a water turbine body, a cooling tower body and a generator body. The generator body is installed above the water turbine body in a transmission mode. The utility model solves the problems that the flow resistance of the upper tower of the cooling tower is larger and the surplus energy of the circulating water system is seriously wasted due to the design allowance at the initial stage of the construction of the circulating water system, the design and model selection reasons of system and device heat exchangers and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling tower circulating water surplus pressure utilization, in particular to a circulating water surplus pressure high-efficiency utilization device. Background Art

[0002] As we all know, most of the energy in the circulating water flow comes from the circulating water pump, that is, from the external power supply. Among them, the size of the circulating water pump mainly depends on the process flow and its control index parameters, especially the highest position in the process. Generally speaking, the highest position in the process is greater than the height of the cooling tower spray system from the ground. In addition, when designing a circulating water system, the system resistance is generally calculated based on experience, and the safety factor must be considered. The rated head of the selected water pump is generally larger, and the energy actually provided to the circulating water by the water pump must be surplus. Therefore, the circulating water flow still has a certain amount of surplus energy when it returns to the cooling tower outlet. In addition, there is surplus pressure energy in the circulating water system, which mainly comes from the potential energy generated when the cooling water flows down from the high-level heat exchange equipment into the cooling tower. In most cases, in order to ensure that the cooling water does not destroy the water distribution device in the tower, valves are also needed to consume this part of the energy.

[0003] However, in most existing companies' circulating water systems, this excess pressure is generally not recycled and is wasted. Existing circulating water cooling towers have two obvious design flaws:

[0004] First, a large amount of excess pressure and energy is not recycled;

[0005] Second, the cooling tower return water management should adopt a straight-line design, but most of them adopt a U-shaped design. The U-shaped design of the cooling tower return water pipe means that the return water pipe extends directly into the ground after coming out of the production workshop, then extends horizontally to the cooling tower, and finally is lifted from the underground to the spray system; the straight-line design means that the return water pipe extends horizontally from the production workshop to the spray system. The difference between the two is that the former greatly increases the energy consumption of the system. Such a circulating water system not only wastes the system's residual pressure, but also costs money to consume this part of the energy.

[0006] In order to solve the problems of large flow resistance on the cooling tower and serious waste of surplus energy in the circulating water system due to the design margin in the initial stage of the circulating water system construction and the design and selection of the system and device heat exchanger, a circulating water surplus pressure efficient utilization device is proposed to meet the cooling of the circulating water system and efficiently recycle and utilize the surplus surplus pressure energy, so as to achieve the purpose of improving energy utilization and saving energy and reducing consumption. Utility Model Content

[0007] The purpose of the utility model is to provide a circulating water surplus pressure efficient utilization device, which has the effect of meeting the cooling of the circulating water system and efficiently recycling and utilizing the surplus surplus pressure energy, achieving the advantages of improving energy utilization and saving energy and reducing consumption, and solving the problem that the flow resistance on the cooling tower is large due to the initial design margin of the circulating water system construction, and the design and selection of the system and device heat exchanger, resulting in serious waste of surplus energy in the circulating water system.

[0008] To achieve the above object, the utility model provides the following technical solutions: a circulating water residual pressure efficient utilization device, comprising a turbine body and a cooling tower body, wherein the turbine body is connected and installed with a circulating water pump body, and further comprising a generator body;

[0009] The generator body transmission is installed above the turbine body.

[0010] When using a circulating water surplus pressure efficient utilization device in the technical scheme, a turbine body is added to the water inlet pipe of the circulating water system, and the generator body and the turbine body are installed for transmission. The circulating water pump body drives the turbine body and the generator body to operate, so that surplus pressure power generation is achieved through the generator body. The generator body is connected to the low-voltage busbar in the factory area through the outlet circuit breaker to feed power to the load. The synchronization point is set in the generator grid cabinet and the power is sent to the factory area power system through the cable to achieve the effect of surplus pressure recovery and power generation. At the same time, the surplus pressure of the circulating water system is utilized for automatic interlocking design, by designing an automatic start interlock at the circulating water pump body, setting an automatic opening interlock at the pump outlet valve, adding an automatic parking protection interlock at the generator body, and designing an automatic switching interlock for the electric valve, so as to achieve safe and reliable operation of the circulating water system.

[0011] Preferably, a drain pipe is installed in communication with the water outlet direction of the turbine body, and one end of the drain pipe facing away from the turbine body is installed in communication with the spray system.

[0012] By installing a drain pipe in the water outlet direction of the turbine body, and connecting the end of the drain pipe away from the turbine body to the spray system, water can be injected into the spray system through the drain pipe, thereby achieving the purpose of cooling the cooling tower body.

[0013] Preferably, the spray system is arranged in the cooling tower body.

[0014] By arranging the spray system in the cooling tower body, the temperature inside the cooling tower body can be lowered.

[0015] Preferably, the drain pipe is parallel to the sprinkler system and is designed in a straight line.

[0016] By arranging the drain pipe parallel to the sprinkler system and in a straight line design, the straight line design allows the drain pipe to extend horizontally directly to the sprinkler system after coming out of the production workshop, thereby reducing the waste of system residual pressure.

[0017] Preferably, the water inlet end of the circulating water pump body is connected to an inlet pipe, one end of the inlet pipe facing away from the circulating water pump body is connected to the drainage end of the cooling tower body, and an automatic start interlock is provided at the drainage end of the circulating water pump body.

[0018] A water inlet pipe is installed at the water inlet end of the circulating water pump body, and the end of the water inlet pipe away from the circulating water pump body is installed in communication with the drainage end of the cooling tower body. At the same time, an automatic start interlock is provided at the drainage end of the circulating water pump body, thereby achieving safe and reliable operation of the circulating water system.

[0019] Preferably, the generator body is electrically connected to the low-voltage busbar in the factory area, and an automatic parking protection interlock is provided in the generator body.

[0020] By connecting the generator body to the low-voltage busbar in the plant area and installing an automatic parking protection interlock in the generator body, the circulating water system can operate safely and reliably.

[0021] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0022] The utility model provides a generator body, and installs the generator body transmission above the turbine body. In actual operation, a turbine body is added to the water inlet pipeline of the circulating water system, and the generator body and the turbine body are transmission-installed, and the circulating water pump body drives the turbine body and the generator body to operate, so that residual pressure power generation is achieved through the generator body. The generator body is connected to the low-voltage busbar in the plant area through the outlet circuit breaker to feed power to the load. The synchronization point is set in the generator grid cabinet, and the power is sent to the power system in the plant area through the cable, so as to achieve the effect of residual pressure recovery and power generation. At the same time, the residual pressure of the circulating water system is utilized for automatic interlocking design, and an automatic start interlock is designed at the circulating water pump body, an automatic opening interlock is set at the water pump outlet valve, an automatic parking protection interlock is added to the generator body, and an electric valve is designed to automatically switch the interlock, so as to achieve the effect of safe and reliable operation of the circulating water system, achieve the effect of meeting the cooling of the circulating water system and efficiently recovering and utilizing the surplus residual pressure energy, and achieve the effect of improving energy utilization and saving energy and reducing consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the residual pressure recovery process of the utility model.

[0025] In the figure: 1. Drain pipe; 2. Turbine body; 3. Generator body; 4. Circulating water pump body; 5. Water inlet pipe; 6. Cooling tower body; 7. Plant low-voltage busbar; 8. Spraying system. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example

[0028] like Figure 1 and Figure 2 As shown, the utility model provides an embodiment: a circulating water residual pressure efficient utilization device, including a turbine body 2 and a cooling tower body 6, the turbine body 2 is connected and installed with a circulating water pump body 4, and also includes a generator body 3;

[0029] Specifically,

[0030] The generator body 3 is installed above the turbine body 2 in a transmission manner.

[0031] By setting the generator body 3, and drivingly installing the generator body 3 above the turbine body 2, in actual operation, by adding the turbine body 2 to the water inlet pipe 5 of the circulating water system, and drivingly installing the generator body 3 and the turbine body 2, the circulating water pump body 4 drives the turbine body 2 and the generator body 3 to operate, so that the residual pressure power generation is realized through the generator body 3, the generator body 3 is connected to the low-voltage bus bar 7 of the plant area through the outlet circuit breaker, and feeds power to the load. The synchronization point is set in the generator grid cabinet, and the power is sent to the power system of the plant area through the cable, so as to achieve the effect of residual pressure recovery power generation. At the same time, the residual pressure of the circulating water system is utilized for automatic interlocking design, by designing an automatic start interlock at the circulating water pump body 4, setting an automatic opening interlock at the pump outlet valve, adding an automatic parking protection interlock at the generator body 3, and designing an automatic switching interlock for the electric valve, the safe and reliable operation effect of the circulating water system is achieved, the effect of meeting the cooling of the circulating water system and efficiently recycling and utilizing the surplus residual pressure energy is achieved, and the effect of improving energy utilization and saving energy and reducing consumption is achieved.

[0032] Furthermore, a drainage pipe 1 is installed in communication with the water outlet direction of the turbine body 2 , and one end of the drainage pipe 1 facing away from the turbine body 2 is installed in communication with the spray system 8 .

[0033] By installing a drain pipe 1 in the water outlet direction of the turbine body 2, and installing the end of the drain pipe 1 away from the turbine body 2 in connection with the spray system 8, water can be injected into the spray system 8 through the drain pipe 2, thereby achieving the purpose of cooling the cooling tower body 6.

[0034] Furthermore, the spray system 8 is disposed in the cooling tower body 6 .

[0035] By arranging the spray system 8 in the cooling tower body 6, the temperature inside the cooling tower body 6 can be lowered.

[0036] Furthermore, the drain pipe 1 and the sprinkler system 8 are parallel and designed in a straight line.

[0037] By arranging the drain pipe 1 and the sprinkler system 8 in parallel and in a straight line, the straight line design allows the drain pipe 1 to extend horizontally directly to the sprinkler system 8 after exiting the production workshop, thereby reducing the waste of system residual pressure.

[0038] Furthermore, the water inlet end of the circulating water pump body 4 is connected to a water inlet pipe 5, and one end of the water inlet pipe 5 away from the circulating water pump body 4 is connected to a drainage end of the cooling tower body 6, and an automatic start interlock is provided at the drainage end of the circulating water pump body 4.

[0039] A water inlet pipe 5 is installed at the water inlet end of the circulating water pump body 4, and the end of the water inlet pipe 5 away from the circulating water pump body 4 is installed in communication with the drainage end of the cooling tower body 6. At the same time, an automatic start interlock is provided at the drainage end of the circulating water pump body 4, thereby achieving safe and reliable operation of the circulating water system.

[0040] Furthermore, the generator body 3 is electrically connected to the low-voltage busbar 7 in the plant area, and an automatic parking protection interlock is provided in the generator body 3 .

[0041] By electrically connecting the generator body 3 to the low-voltage busbar 7 in the plant area and providing an automatic parking protection interlock in the generator body 3, the safe and reliable operation of the circulating water system can be achieved.

[0042] When the utility model is used, a turbine body 2 is added to the water inlet pipe 5 of the circulating water system, and the generator body 3 is installed with the turbine body 2 for transmission. The circulating water pump body 4 drives the turbine body 2 and the generator body 3 to operate, so that residual pressure power generation is achieved through the generator body 3. The generator body 3 is connected to the low-voltage bus bar 7 in the plant area through the outlet circuit breaker to feed power to the load. The synchronization point is set in the generator grid cabinet and the power is sent to the power system in the plant area through the cable, so as to achieve the effect of residual pressure recovery and power generation. At the same time, the residual pressure of the circulating water system is utilized for automatic interlocking design, by designing an automatic start interlock at the circulating water pump body 4, setting an automatic opening interlock at the water pump outlet valve, adding an automatic parking protection interlock at the generator body 3, and designing an automatic switching interlock for the electric valve, so as to achieve the safe and reliable operation of the circulating water system.

[0043] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A circulating water excess pressure efficient utilization device, comprising a turbine body (2), a cooling tower body (6) and a plant low-pressure busbar (7), wherein the turbine body (2) is connected and installed with a circulating water pump body (4), characterized in that: Also includes: A generator body (3) is transmission-mounted above the turbine body (2); A drainage pipe (1) is installed in communication with the water outlet direction of the water turbine body (2), and one end of the drainage pipe (1) facing away from the water turbine body (2) is installed in communication with a spray system (8); The generator body (3) is electrically connected to the low-voltage busbar (7) in the plant area, and an automatic parking protection interlock is arranged in the generator body (3).

2. A circulating water residual pressure efficient utilization device according to claim 1, characterized in that: The spray system (8) is arranged in the cooling tower body (6).

3. A circulating water residual pressure efficient utilization device according to claim 2, characterized in that: The drainage pipe (1) is parallel to the spray system (8) and is designed in a straight line.

4. The circulating water residual pressure efficient utilization device according to claim 1, characterized in that: The water inlet end of the circulating water pump body (4) is connected to a water inlet pipe (5), and one end of the water inlet pipe (5) away from the circulating water pump body (4) is connected to a drainage end of the cooling tower body (6), and an automatic start interlock is provided at the drainage end of the circulating water pump body (4).

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