Impurity removing device installed on circulating water pump

Abstract

The utility model belongs to the technical field of cooling water impurity filtering equipment, and particularly relates to an impurity removing device installed on a circulating water pump. The impurity removing device mainly comprises a trumpet-shaped cylinder body and a trumpet-shaped filter cylinder. The trumpet-shaped barrel adopts a conical design, and the trumpet-shaped filter cartridge is mounted in the trumpet-shaped barrel through the assembly flange; the trumpet-shaped filter cartridge is also conical and is provided with a filter screen for intercepting impurities, and a deposition tank is arranged at the bottom of the trumpet-shaped filter cartridge and is communicated with the slag discharge pipe. And the slag discharge pipe extends out of the trumpet-shaped cylinder body through the through hole. The device can be mounted at the water inlet of the circulating water pump, and impurities in the inlet water of the circulating water pump are effectively removed by using the trumpet-shaped filter cartridge. Meanwhile, a rotary scraper mechanism is additionally arranged to automatically clean impurities attached to the inner wall of the trumpet-shaped filter cartridge by utilizing water flow entering the circulating water pump, and an intercepting net and a dirt discharge groove are additionally arranged to improve the safety and reliability of the whole device. The device is simple in structure, good in filtering effect and suitable for impurity treatment of the circulating water pump of the gas power plant.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling water impurity filtering equipment, and in particular relates to an impurity removing device installed on a circulating water pump. Background Art

[0002] As an important part of the energy industry, the operating efficiency and stability of gas-fired power plants are directly related to the reliability of power supply. During the operation of gas-fired power plants, circulating water pumps are mainly responsible for the stable circulation of cooling water or other working media between various equipment in the power plant, thereby maintaining the normal temperature of the equipment and preventing overheating damage.

[0003] However, the operating environment of gas power plants is usually complex, and cooling water or other media are inevitably mixed with various impurities, such as particles, microorganisms, chemicals, etc. If these impurities enter the circulating water pump without being treated, they will not only cause wear on the pump body and impeller, reducing the service life of the pump, but may also block the pipeline and affect the normal circulation of water flow, thus posing a threat to the safe operation of the power plant.

[0004] At present, most gas power plants mainly add filters in the circulation pipeline to intercept impurities, but when the impurity content is high, the filter is easily blocked, resulting in water flow obstruction and even water pump failure. Once impurities enter the circulating water pump, the subsequent cleaning and maintenance are not only cumbersome, but also time-consuming and labor-intensive, and will further affect the normal operation of the power plant.

[0005] Therefore, it is necessary to design a kind of impurity removal device to remove impurities in the medium, so as to improve the reliability of the circulating water pump, reduce the maintenance cost, and ensure the safe and stable operation of the gas power plant. Utility Model Content

[0006] Aiming at the problems existing in the impurity treatment of the existing circulating water pump of the gas power plant in the background technology, the utility model provides an impurity removal device installed on the circulating water pump.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an impurity removal device installed on a circulating water pump, comprising a trumpet-shaped cylinder and a trumpet-shaped filter cartridge, the trumpet-shaped filter cartridge is placed in the trumpet-shaped cylinder, a slag discharge pipe is connected to the bottom side wall of the trumpet-shaped filter cartridge through a sedimentation groove, the slag discharge pipe extends outside the trumpet-shaped cylinder, and the trumpet-shaped cylinder is installed on the water inlet of the circulating water pump.

[0008] As a further explanation and limitation of the above technical solution, the trumpet-shaped cylinder includes a conical cylinder, and a first connecting flange and a second connecting flange are respectively arranged at its two ends, a first assembly flange is arranged inside the conical cylinder, and a through hole is arranged on the conical cylinder for passing the slag discharge pipe; the trumpet-shaped filter cartridge includes a conical filter cartridge section, and a conical collecting cylinder section connected thereto, a second assembly flange is arranged at the port of the conical filter cartridge section, a filter screen is arranged at the port of the conical collecting cylinder section, a sealing ring is arranged between the first connecting flange and the second assembly flange, and the trumpet-shaped cylinder and the trumpet-shaped filter cartridge are assembled using bolts and nuts.

[0009] As a further supplement to the above technical solution, an interception net is arranged on the second connecting flange, a sewage trough is arranged on the conical cylinder, and a sewage pipe is connected to the bottom of the sewage trough.

[0010] As a further supplement to the above technical solution, a rotating connecting seat is arranged at the center of the filter screen, and an impeller scraper mechanism is arranged on the rotating connecting seat. The impeller scraper mechanism uses the water flow power of the circulating water pump to rotationally scrape the impurities attached to the inner wall of the trumpet-shaped filter cartridge in the sedimentation tank, and discharge them regularly through the slag discharge pipe.

[0011] As a further explanation and limitation of the above technical solution, the impeller scraper mechanism includes a rotating shaft, and a connecting shaft and an impeller are respectively arranged at both ends thereof, the connecting shaft and the impeller are distributed on the inner and outer sides of the conical collecting cylinder section, a mounting plate is arranged on the connecting shaft, and a plurality of L-shaped scrapers are radially arranged on the rotating shaft, each of the L-shaped scrapers is connected to the mounting plate through a connecting rod, and the L-shaped scrapers are respectively fitted with the conical filter cylinder section, the conical collecting cylinder section, and the filter screen.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The utility model adopts the design of a trumpet-shaped cylinder and a trumpet-shaped filter cartridge, and utilizes the trumpet-shaped filter cartridge to effectively remove impurities in the water inlet of the circulating water pump, thereby extending the service life of the circulating water pump, reducing the failure rate caused by impurities, reducing the wear and failure of the circulating water pump, reducing the maintenance and replacement costs, and improving the operating efficiency and economic benefits of the entire system.

[0014] 2. The utility model introduces a rotary scraper mechanism to realize automatic cleaning of the filter screen, avoiding the tedious and time-consuming manual cleaning, improving the automation level of the device, and reducing maintenance costs and time.

[0015] 3. The utility model can further intercept larger impurities and protect the inside of the device from damage by setting up an interception net. At the same time, the setting of the sewage trough and sewage pipe enables rapid sewage discharge in abnormal situations or when cleaning is required, ensuring the safe operation of the device.

[0016] 4. The utility model has a simple structure, is easy to install and disassemble, and can meet the impurity treatment needs of circulating water pumps in gas power plants of different sizes and types.

[0017] 5. The utility model has the advantages of high efficiency, automation, safety, reliability and strong adaptability in the treatment of impurities in the circulating water pump of a gas power plant, which significantly improves the operating efficiency and economic benefits of the system and has broad application prospects and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the impurity removal device in the utility model;

[0019] Figure 2 It is a structural diagram of the impurity removal device in the utility model;

[0020] Figure 3 It is a structural diagram of the trumpet-shaped cylinder in the utility model;

[0021] Figure 4 This is a structural diagram of the trumpet-shaped filter cartridge in the utility model;

[0022] Figure 5 This is a structural diagram of the impeller scraper mechanism in the utility model;

[0023] Figure 6 It is an assembly diagram of the trumpet-shaped filter cartridge and the impeller scraper mechanism in the utility model;

[0024] Figure 7 It is an assembly diagram of the impurity removal device and the circulating water pump in the utility model.

[0025] In the figure: the trumpet-shaped cylinder is 1, the trumpet-shaped filter cartridge is 2, the impeller scraper mechanism is 3, the bolts and nuts are 4, the interception net is 5, the sewage trough is 6, the sewage pipe is 7, the sealing ring is 8, the sedimentation trough is 9, the slag discharge pipe is 10, the rotating connecting seat is 11, the rotating shaft is 12, the connecting shaft is 13, the impeller is 14, the mounting plate is 15, the L-shaped scraper is 16, the connecting rod is 17, and the circulating water pump is 18.

[0026] Among them, the trumpet-shaped cylinder body includes: a conical cylinder 101, a first connecting flange 102, a second connecting flange 103, a first assembly flange 104, and a through hole 105; the trumpet-shaped filter cartridge includes: a conical filter cartridge section 201, a conical collecting cylinder section 202, a filter screen 203, and a second assembly flange 204. DETAILED DESCRIPTION

[0027] In order to further illustrate the technical solution of the utility model, the following Figures 1 to 7 According to the structural design of the impurity removal device and the project transformation implementation process, we further illustrate the utility model through three embodiments. Embodiment 1

[0028] As attached Figures 1 to 4 As shown in Figures 1 and 7, in response to the problem of impurity treatment of the circulating water pump of a gas power plant, this embodiment provides an impurity removal device, which is mainly composed of a trumpet-shaped cylinder 1 and a trumpet-shaped filter cartridge 2. (i) The trumpet-shaped cylinder 1 is designed to be conical, mainly including a conical cylinder 101, and a first connecting flange 102 and a second connecting flange 103 are respectively provided at both ends thereof, so as to facilitate connection with the circulating water pump and other pipelines. A first assembly flange 104 is provided inside the conical cylinder for fixing the trumpet-shaped filter cartridge 2. At the same time, a through hole 105 is provided on the conical cylinder 101 for installing a slag discharge pipe 10 so as to discharge the deposited impurities. (ii) The trumpet-shaped filter cartridge 2 also adopts a conical design, including a conical filter cartridge section 201 and a conical collection cylinder section 202. A second assembly flange 204 is provided at the port of the conical filter cartridge section, and the second assembly flange 204 is tightly connected to the first connecting flange 102 of the trumpet-shaped cylinder through bolts and nuts 4 and a sealing ring 8 to ensure the sealing of the device. A filter screen 203 is provided at the port of the conical collecting barrel section 202 to intercept impurities and prevent them from entering the circulating water pump 18. The design of the filter screen takes into account the size and flow rate of the impurities to ensure that the impurities can be effectively intercepted without affecting the normal passage of the water flow. In addition, a sedimentation tank 9 is provided on the bottom side wall of the conical collecting barrel section 202, and is connected to the slag discharge pipe 10 through the sedimentation tank. When impurities are intercepted by the filter screen and deposited in the sedimentation tank under the action of gravity, they can be discharged regularly through the slag discharge pipe to keep the filter screen unobstructed.

[0029] The device is installed on the water inlet of the circulating water pump 18 through the second connecting flange 103, directly filters the medium entering the circulating water pump, effectively removes impurities, and protects the circulating water pump from wear and blockage. Embodiment 2

[0030] In order to improve the efficiency and automation of impurity removal, we added a rotary scraper mechanism based on the first embodiment.

[0031] As attached Figures 4 to 6As shown, the specific scheme is as follows: a rotating connection seat 11 is set at the center of the filter screen 203 for installing the impeller scraper mechanism 3. The mechanism includes a rotating shaft 12, a connecting shaft 13 and an impeller 14. The connecting shaft 13 and the impeller 14 are respectively located on the inner and outer sides of the conical collecting barrel section 202. A mounting plate 15 is provided on the connecting shaft 13 for fixing and supporting the scraper. A plurality of L-shaped scrapers 16 are radially arranged on the rotating shaft 12, and each scraper is connected to the mounting plate 15 by a connecting rod 17. The design of the scrapers enables them to fit tightly against the inner wall of the conical filter barrel section 201, the conical collecting barrel section 202 and the filter screen 203. When the circulating water pump is working, the water flow drives the impeller 14 to rotate, and then drives the scraper to rotate. During the rotation process, the scraper scrapes off the impurities attached to the filter screen, causing them to fall into the sedimentation tank 9 and be discharged through the slag discharge pipe 10.

[0032] The design of this rotary scraper mechanism can automatically clean the filter screen regularly, avoiding the tedious and time-consuming manual cleaning, and improving the automation level and utilization efficiency of the device. Embodiment 3

[0033] As attached Figure 2 and 3 As shown, this embodiment adds additional safety measures on the basis of the second embodiment to improve the safety and reliability of the device. An interception net 5 is set on the second connecting flange 103 to further intercept larger impurities that may enter the device to prevent damage to the inside of the device. The design of the interception net takes into account the flow rate and interception effect to ensure that impurities can be effectively intercepted without affecting the normal passage of water. At the same time, a sewage trough 6 is set on the conical cylinder 101, and a sewage pipe 7 is connected to the bottom of the sewage trough. When an abnormal situation occurs inside the device or cleaning is required, sewage can be quickly discharged through the sewage pipe to ensure the safe operation of the device.

[0034] In this embodiment, by adding safety measures such as interception nets and sewage pipes, the impurity removal device of this embodiment not only ensures the filtering effect, but also improves the safety and reliability of the device and reduces maintenance costs and risks.

[0035] At present, after the impurity removal device was put into use, it has brought the following economic benefits to our company. (1) By effectively removing impurities from the circulating water pump, the impurity removal device can significantly reduce the wear and failure rate of the water pump, extend its service life, and reduce maintenance and replacement costs. This will save a lot of money for the power plant and improve the reliability and stability of the equipment.

[0036] (2) The impurity removal device can improve the working efficiency of the circulating water pump. As the impurities are removed, the water intake and head of the water pump will be improved, thereby improving the efficiency of the entire circulation system. This will help the power plant improve power generation efficiency, increase power generation, and further improve economic benefits.

[0037] (3) The impurity removal device also has an automated cleaning function through a rotating scraper mechanism, which reduces the workload of manual maintenance. This will save human resources for the power plant and reduce operating costs. At the same time, the automated cleaning process can also ensure the continuous and stable operation of the device and avoid failures and downtime caused by human factors.

[0038] In summary, after the impurity removal device is put into use, it will effectively improve the economic benefits of the power plant, reduce operating costs, improve equipment reliability and stability, and contribute to the sustainable development of the power plant.

[0039] The above shows and describes the main features and advantages of the utility model. For those skilled in the art, it is obvious that the specific implementation of the utility model is not limited to the details of the above exemplary embodiments, and the creative ideas and design ideas of the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model, which should be equivalent to the protection scope disclosed in the technical solution of the utility model. Therefore, no matter from which point of view, the embodiments 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, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the utility model.

[0040] 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 impurity removal device installed on a circulating water pump, characterized in that: The invention comprises a trumpet-shaped cylinder (1) and a trumpet-shaped filter cartridge (2), wherein the trumpet-shaped filter cartridge (2) is placed inside the trumpet-shaped cylinder (1), and a slag discharge pipe (10) is connected to the bottom side wall of the trumpet-shaped filter cartridge (2) via a sedimentation trough (9), and the slag discharge pipe (10) extends outside the trumpet-shaped cylinder (1), and the trumpet-shaped cylinder (1) is mounted on the water inlet of a circulating water pump (18).

2. The impurity removal device installed on a circulating water pump according to claim 1, characterized in that: The trumpet-shaped cylinder (1) comprises a conical cylinder (101), and a first connecting flange (102) and a second connecting flange (103) are respectively arranged at two ends thereof; a first assembly flange (104) is arranged inside the conical cylinder (101); a through hole (105) is arranged on the conical cylinder (101) for passing the slag discharge pipe (10); the trumpet-shaped filter cartridge (2) comprises a conical filter cartridge section (201) and a conical collecting cartridge section (202) connected thereto; a second assembly flange (204) is arranged at the end of the conical filter cartridge section (201); a filter screen (203) is arranged at the end of the conical collecting cartridge section (202); a sealing ring (8) is arranged between the first connecting flange (102) and the second assembly flange (204); and bolts and nuts (4) are used to assemble the trumpet-shaped cylinder (1) and the trumpet-shaped filter cartridge (2).

3. The impurity removal device installed on a circulating water pump according to claim 2, characterized in that: An interception net (5) is provided on the second connecting flange (103), a sewage trough (6) is provided on the conical cylinder (101), and a sewage pipe (7) is connected to the bottom of the sewage trough (6).

4. An impurity removal device installed on a circulating water pump according to claim 2 or 3, characterized in that: A rotating connection seat (11) is arranged at the center of the filter screen (203), and an impeller scraper mechanism (3) is arranged on the rotating connection seat (11). The impeller scraper mechanism (3) uses the water flow power of the circulating water pump (18) to rotationally scrape impurities attached to the inner wall of the trumpet-shaped filter cartridge (2) in the sedimentation tank (9), and discharges them regularly through the slag discharge pipe (10).

5. The impurity removal device installed on a circulating water pump according to claim 4, characterized in that: The impeller scraper mechanism (3) comprises a rotating shaft (12), and a connecting shaft (13) and an impeller (14) respectively arranged at both ends of the rotating shaft, the connecting shaft (13) and the impeller (14) being distributed on the inner and outer sides of the conical collecting barrel section (202), a mounting plate (15) being arranged on the connecting shaft (13), and a plurality of L-shaped scrapers (16) being radially arranged on the rotating shaft (12), each of the L-shaped scrapers (16) being connected to the mounting plate (15) via a connecting rod (17), and the L-shaped scrapers (16) respectively being in contact with the conical filter barrel section (201), the conical collecting barrel section (202), and the filter screen (203).

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