Automatic temperature adjusting device for cooling water of closed circulation auxiliary machine of thermal power plant

Abstract

The utility model discloses a thermal power plant closed circulation auxiliary machine cooling water automatic temperature adjusting device in the technical field of cooling water automatic temperature adjusting devices, which comprises a cooling tower, liquid inlets are arranged at the top and the middle of the cooling tower, and the thermal power plant closed circulation auxiliary machine cooling water automatic temperature adjusting device further comprises a flow supply unit which is used for detecting water temperature and respectively supplying water to the two liquid inlets. According to the cooling tower, the liquid inlets are formed in the top and the surface of the cooling tower, when the cooling tower is used, a user supplies used cooling water (hot water) to the two liquid inlets through the flow supply unit, meanwhile, the flow supply unit can detect the temperature of the cooling water before water supply, and under the condition that the water temperature is low, the cooling water can be supplied to the cooling tower through the flow supply unit. Under the condition that the temperature of the water is high, the water is introduced into the surface of the cooling tower, so that the flowing time of the water in the cooling tower is short to save time, and under the condition that the temperature of the water is high, the water is introduced into the top of the cooling tower to ensure the cooling effect (the flowing time in the cooling tower is long).

Description

Technical Field

[0001] This utility model relates to the technical field of automatic cooling water temperature control devices, specifically an automatic cooling water temperature control device for closed-loop auxiliary equipment in thermal power plants. Background Technology

[0002] The closed-loop auxiliary cooling water system of a thermal power plant is a closed-loop system for cooling auxiliary mechanical equipment other than the main equipment (such as steam turbine) in a thermal power generating unit. During operation, it generates a large amount of hot water, which needs to be cooled by an automatic cooling water temperature regulating device.

[0003] In use, users need to directly introduce the used cooling water (hot water) into the cooling water system. Although this method can cool the hot water quickly, when cooling water (hot water) that is not very hot, it may cool down after flowing halfway through the cooling water system, and the subsequent cooling time is wasted. Therefore, a new type of automatic temperature regulating device for the cooling water of the closed-loop auxiliary equipment in thermal power plants is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to solve the problem that when users directly introduce used cooling water (hot water) into the cooling water system, although this method can cool the hot water quickly, when cooling water (hot water) that is not very hot, the cooling water (hot water) may cool down after flowing halfway through the cooling water system, and the subsequent cooling time is wasted. This invention provides an automatic cooling water temperature regulating device.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] An automatic temperature control device for cooling water of a closed-loop auxiliary machine in a thermal power plant includes: a cooling tower, wherein liquid inlets are provided at the top and middle of the cooling tower; and a flow supply unit, wherein the flow supply unit is used to detect the water temperature and supply water to the two liquid inlets respectively.

[0007] Furthermore, the cooling tower includes a main chamber with several small holes on its inner wall. The main chamber is filled with cooling filler and has a secondary chamber on top. A water outlet pipe is fixedly connected to the surface of the main chamber. The tower also includes a first installation unit for installing the secondary chamber on the top of the main chamber. A water outlet chamber is rotatably connected to the top of the secondary chamber, and a bent pipe is rotatably connected to one end of the water outlet chamber. Two liquid inlets are respectively located at one end of the main chamber and one end of the bent pipe. An installation plate is fixedly sleeved on the surface of the bent pipe, and one end of the installation plate is fixedly installed on the top of the secondary chamber. The tower also includes a drive unit for driving the water outlet chamber to rotate.

[0008] Furthermore, the first mounting unit includes two first mounting edges respectively disposed on the surfaces of the main compartment and the auxiliary compartment, and a plurality of first bolts, the surfaces of the plurality of first bolts being threaded into the surfaces of the two first mounting edges respectively.

[0009] Furthermore, the drive unit includes a small gear fixedly sleeved on the surface of the water outlet chamber, a large gear meshing on the surface of the small gear, the large gear being rotatably inserted into the top of the sub-chamber, a drive motor fixedly mounted on the surface of the sub-chamber, the output end of the drive motor being fixedly mounted on the surface of the large gear, and the drive motor being electrically connected to a controller fixedly mounted on the surface of the main chamber.

[0010] Furthermore, the supply unit includes a water pump fixedly installed on the surface of the main chamber and two corrugated pipes. The water inlet end of the water pump is fixedly connected to a water inlet chamber. The inner wall of the water inlet chamber has a threaded groove and a temperature sensor is fixedly installed thereon. The water outlet end of the water pump is fixedly installed with a three-way pipe. The temperature sensor and the water pump are both electrically connected to the controller. Each end of the three-way pipe is provided with a first solenoid valve, and both first solenoid valves are electrically connected to the controller. The three-way pipe is connected to the two liquid inlets through the two corrugated pipes respectively.

[0011] Furthermore, the inner wall of the main chamber is provided with a water storage space, and the inner wall of the water storage space is fixedly installed with stepped protrusions. The water outlet pipe is fixedly inserted into the inner wall of the water storage space and is provided with a second solenoid valve. The second solenoid valve is electrically connected to the controller.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, by setting a liquid inlet at the top and surface of the cooling tower, the user supplies the used cooling water (hot water) to the two liquid inlets through the supply unit during use. At the same time, before supplying water, the supply unit can detect the temperature of the cooling water. If the water temperature is low, it is introduced into the surface of the cooling tower, so that the flow time inside the cooling tower is shorter to save time. If the water temperature is high, it is introduced into the top of the cooling tower to ensure the cooling effect (the flow time inside the cooling tower is longer).

[0014] 2. In this utility model, a water inlet chamber is fixedly connected to the water inlet end of the water pump, and a temperature sensor is fixedly installed on the inner wall of the water inlet chamber. When in use, the user connects the external water source to the inner wall of the water inlet chamber by thread, and then the water pump can draw water into the interior of the three-way pipe. Finally, the water is discharged into the interior of the cooling tower through two corrugated pipes. As for whether the water is discharged to the top or the middle, it can be determined according to the water temperature. In this way, cooling time can be saved when the water temperature is low, and all the water can be discharged directly from the middle of the cooling tower. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a half-sectional view of the present invention;

[0017] Figure 3 This is a half-sectional view of the present invention from another angle;

[0018] Figure 4 This is a partial schematic diagram of a half-sectional view of the present invention.

[0019] In the diagram: 1. Cooling tower; 101. Main chamber; 102. Cooling packing; 103. Secondary chamber; 104. Water outlet pipe; 105. First mounting unit; 1051. First mounting edge; 1052. First bolt; 106. Water outlet chamber; 107. Bend; 108. Mounting plate; 109. Drive unit; 1091. Pinion; 1092. Gear; 1093. Drive motor; 1094. Controller; 2. Liquid inlet; 3. Flow supply unit; 31. Water pump; 32. Corrugated pipe; 33. Water inlet chamber; 34. Temperature sensor; 35. T-connector; 36. First solenoid valve; 4. Water storage space; 5. Stepped protrusion; 6. Second solenoid valve. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0021] This embodiment provides an automatic temperature control device for cooling water in a closed-loop auxiliary system of a thermal power plant. It primarily addresses the problem that when users directly feed used cooling water (hot water) into the cooling water system, while this method can quickly cool the hot water, for water that is not very hot, the water may cool down after flowing halfway through the cooling water system, wasting the remaining cooling time. The following technical solution is provided, which will be discussed in conjunction with... Figures 1-4 Please provide a detailed explanation:

[0022] An automatic temperature control device for cooling water in a closed-loop auxiliary system of a thermal power plant includes a cooling tower 1 with inlets 2 at both the top and middle. During use, the user can supply used cooling water into the cooling tower 1 via a supply unit 3. Before supplying the cooling water, the supply unit 3 detects the temperature. When the temperature is not very high, the supply unit 3 directs water into the middle inlet 2; when the temperature is high, the supply unit 3 directs water into the top inlet 2. This design ensures that when the cooling water temperature is high, it is effectively cooled (cooling begins from the top), and when the cooling water temperature is low, the cooling time is effectively shortened, while still achieving good cooling. The device fully embodies practicality. The main components of the cooling tower 1 are: a main chamber 101 with several small holes on its inner wall, and a secondary chamber 103 located above the main chamber 101. During assembly, the user installs the secondary chamber 103 on top of the main chamber 101 using the first mounting unit 105. A water outlet chamber 106 is rotatably inserted into the top of the secondary chamber 103, and a bent pipe 107 is rotatably inserted into one end of the water outlet chamber 106 (a mounting plate 108 is fixedly fitted onto the surface of the bent pipe 107, with one end of the mounting plate 108 fixedly installed on the top of the secondary chamber 103). Two liquid inlets 2 are respectively located at one end of the bent pipe 107 and on the surface of the main chamber 101. During use, the user connects the cooling tower 103 via the supply unit 3. Water is supplied to two inlets 2 (it is possible to supply water to only one inlet 2), and the water outlet 106 is driven to rotate simultaneously via the drive unit 109. This causes the cooling water entering through the bend pipe 107 to rotate inside the water outlet 106 and be sprayed into the main chamber 101. After passing through the cooling packing 102 filled inside the main chamber 101, the water is cooled and discharged through the water outlet pipe 104 (fixedly inserted into the inner wall of the main chamber 101). Cooling water entering from the middle of the main chamber 101 will seep into the cooling packing 102 and then be discharged through the water outlet pipe 104 (fixedly inserted into the inner wall of the main chamber 101). The main components of the first installation unit 105 are two units respectively installed in the main chamber 101 and the auxiliary chamber 103. The surface has a first mounting edge 1051 and several first bolts 1052. During use, the user needs to align two first mounting edges 1051 together and then connect them using the first bolts 1052, thus enabling the sub-compartment 103 to be installed above the main compartment 101. The main components of the drive unit 109 are a small gear 1091 rotatably inserted into the surface of the sub-compartment 103. During use, the user controls the output end of the drive motor 1093, fixedly mounted on the top of the sub-compartment 103, to rotate via a controller 1094 fixedly mounted on the surface of the main compartment 101. This, in turn, drives the large gear 1092 fixedly mounted on the output end of the drive motor 1093 to rotate.This further drives the small gear 1091, which is fixedly sleeved on the water outlet chamber 106, to rotate (meshing with the large gear 1092), thereby driving the water outlet chamber 106. The cooling water flowing into the water outlet chamber 106 from the bend 107 is then evenly sprayed into the interior of the main chamber 101.

[0023] By setting a liquid inlet 2 at the top and surface of the cooling tower 1, the user supplies the used cooling water (hot water) to the two liquid inlets 2 through the supply unit 3. At the same time, before supplying water, the supply unit 3 can detect the temperature of the cooling water. If the water temperature is low, it is introduced into the surface of the cooling tower 1, so that the flow time inside the cooling tower 1 is short to save time. If the water temperature is high, it is introduced into the top of the cooling tower 1 to ensure the cooling effect (the flow time inside the cooling tower 1 is longer).

[0024] A water inlet chamber 33 is fixedly connected to the water inlet end of the water pump 31, and a temperature sensor 34 is fixedly installed on the inner wall of the water inlet chamber 33. In use, the user connects the external water source to the inner wall of the water inlet chamber 33 by threading it through the water pump 31. Then, the water can be pumped into the interior of the three-way pipe 35 by the water pump 31, and finally discharged into the interior of the cooling tower 1 through the two corrugated pipes 32. As for whether to discharge to the top or the middle, it can be determined according to the water temperature. In this way, cooling time can be saved when the water temperature is low, and all the water can be discharged directly from the middle of the cooling tower 1.

[0025] like Figures 1-4As shown, in some embodiments, the main components of the water supply unit 3 are: a water pump 31 fixedly installed on the surface of the main chamber 101, two corrugated pipes 32, and a water inlet chamber 33 fixedly connected to the water inlet end of the water pump 31. Because the inner wall of the water inlet chamber 33 has a threaded groove and a temperature sensor 34 is fixedly installed, the user needs to first insert the threaded water pipe of the cooling water outlet of the closed-loop auxiliary machine of the thermal power plant into the interior of the water inlet chamber 33 (the inner wall of the water inlet chamber 33 is fixedly installed with a temperature sensor 34, which can detect the temperature of the cooling water). Then, the cooling water can be introduced into the interior of the water inlet chamber 33, pumped by the water pump 31 into the interior of the three-way pipe 35 fixedly connected to its outlet end, and finally enter the two liquid inlets 2 through the two corrugated pipes 32 respectively. It should be noted that: both ends of the three-way pipe 35 are equipped with a first solenoid valve 36, and the user can control the two first solenoid valves 36 through the controller 1094 to control the conduction state of the cooling water inside the two bellows 32. At the same time, after the cooling water (hot water) is discharged from several small holes inside the main chamber 101 into the water storage space 4 opened inside the main chamber 101, it will first fall on the surface of the stepped protrusion 5 fixedly installed on the inner wall of the water storage space 4, flow on the surface of the stepped protrusion 5 and then flow into the interior of the water outlet pipe 104 fixedly inserted into the inner wall of the water storage space 4, and finally be discharged from the main chamber 101. During the above process, the user can control the second solenoid valve 6 set in the water outlet pipe 104 through the controller 1094 to control the conduction state of the water outlet pipe 104.

[0026] The working process of this utility model is as follows: First, the user needs to install the auxiliary compartment 103 on the top of the main compartment 101 using several first bolts 1052. Then, the water pipe for external cooling water is connected to the inlet of the water pump 31. The water pump 31 is controlled by the controller 1094 to pump water into the two inlets 2, thereby completing the cooling of the cooling water (when the water temperature is high, it is introduced from the upper inlet 2, and when it is low, it is introduced from the lower inlet 2).

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic temperature adjusting device for a closed cycle auxiliary cooling water of a thermal power plant, characterized in that, Include: Cooling tower (1), the top and middle part of the cooling tower (1) are provided with liquid inlet (2), and a flow unit (3) is further arranged for detecting water temperature and supplying water to the two liquid inlets (2) respectively; The cooling tower (1) comprises a main warehouse body (101), a plurality of small holes are arranged on the inner wall of the main warehouse body (101), the inside of the main warehouse body (101) is filled with cooling filler (102), and the upper part of the main warehouse body (101) is provided with a secondary warehouse body (103), the surface of the main warehouse body (101) is fixedly connected with a water outlet pipe (104), and a first mounting unit (105) is further arranged for mounting the secondary warehouse body (103) on the top of the main warehouse body (101), the top of the secondary warehouse body (103) is rotatably connected with a water outlet warehouse (106), one end of the water outlet warehouse (106) is rotatably connected with a bend pipe (107), the two liquid inlets (2) are arranged on the main warehouse body (101) and one end of the bend pipe (107) respectively, the surface of the bend pipe (107) is fixedly connected with a mounting plate (108), one end of the mounting plate (108) is fixedly mounted on the top of the secondary warehouse body (103), and a driving unit (109) is further arranged for driving the water outlet warehouse (106) to rotate; The driving unit (109) comprises a pinion (1091) fixedly connected to the surface of the water outlet warehouse (106), the surface of the pinion (1091) is engaged with a large gear (1092), the large gear (1092) is rotatably connected to the top of the secondary warehouse body (103), the surface of the secondary warehouse body (103) is fixedly connected with a driving motor (1093), the output end of the driving motor (1093) is fixedly connected to the surface of the large gear (1092), and the driving motor (1093) is electrically connected with a controller (1094) fixedly connected to the surface of the main warehouse body (101); The flow unit (3) comprises a water pump (31) fixedly connected to the surface of the main warehouse body (101), two corrugated pipes (32), the water inlet end of the water pump (31) is fixedly connected with a water inlet chamber (33), the inner wall of the water inlet chamber (33) is provided with a threaded groove and is fixedly connected with a temperature sensor (34), the water outlet end of the water pump (31) is fixedly connected with a three-way pipe (35), the temperature sensor (34) and the water pump (31) are electrically connected with the controller (1094), two ends of the three-way pipe (35) are provided with a first electromagnetic valve (36), and the two first electromagnetic valves (36) are electrically connected with the controller (1094), and the three-way pipe (35) is connected with the two liquid inlets (2) through the two corrugated pipes (32) respectively.

2. The device according to claim 1, characterized in that: The first mounting unit (105) comprises two first mounting edges (1051) respectively arranged on surfaces of the main bin body (101) and the auxiliary bin body (103), and a plurality of first bolts (1052), surfaces of the first bolts (1052) are respectively threadedly connected to surfaces of the two first mounting edges (1051).

3. The device according to claim 1, characterized in that: An inner wall of the main bin body (101) is provided with a water storage space (4), an inner wall of the water storage space (4) is fixedly provided with a stepped protrusion (5), the water outlet pipe (104) is fixedly connected to the inner wall of the water storage space (4) and is provided with a second electromagnetic valve (6), and the second electromagnetic valve (6) is electrically connected with the controller (1094).

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