Chemical circulation pickling equipment for small cooler of power plant

Abstract

The utility model relates to the technical field of pickling of small coolers, and discloses chemical circulation pickling equipment for a small cooler of a power plant, which comprises a fixing frame, a pickling water tank and a pickling pump body, and a small lubricating oil cooler A and a small lubricating oil cooler B are arranged in the fixing frame. Communicating pipes are arranged outside the small-sized lubricating oil cooler A and the small-sized lubricating oil cooler B. A flow control and regulation mechanism is arranged outside the small-sized lubricating oil cooler A. An external water pipe is installed at the top of the pickling water tank, a drain pipe is arranged outside the pickling water tank, and stirring and mixing treatment mechanisms are arranged at the top and inside the pickling water tank. And a liquid pumping pipe and a liquid outlet pipe are arranged outside the pickling pump body. By arranging the flow control adjusting mechanism, the connecting pipe and the liquid outlet pipe can be rapidly installed, the amount of the flowing pickling solution can be dynamically controlled, the pickling solution in the pickling water tank can be stirred through the stirring and mixing treatment mechanism, and the circulating pickling effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pickling of small coolers, in particular to a chemical circulating pickling device for small coolers in power plants. Background Technique

[0002] During the operation of the steam turbine, during the on-site inspection of the inner cooling water cooler, vacuum pump cooler, small turbine cooler, anti - fuel oil cooler, and working cooler of the electric pump in the second - stage generator, obvious water scale (hard scale) deposits are found on the water outlet side of the cooler. During the on - site shutdown maintenance and unit class maintenance, there is a small amount of black - gray silt deposit on the water chamber partition at the inlet end, and there is more black - gray silt on the water chamber partition at the outlet end. In order to ensure that the unit can smoothly pass the summer after the on - site inspection, it is necessary to pickle the small cooler.

[0003] The existing pickling equipment for small coolers generally opens the machine compartment of the small cooler, adds the prepared pickling solution into it through a special feeding device, stands for a period of time, and then rinses it with solutions such as water to achieve the removal of water scale (hard scale). In the process of using the existing technology, although the water scale (hard scale) inside the cooler can be pickled and removed by the pickling solution, after pickling, a large amount of water is needed to rinse its interior, which is likely to cause waste of water resources and also makes a large amount of unconsumed acid solution directly discharged into the environment. Therefore, we urgently need to improve a chemical circulating pickling device for small coolers in power plants to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a chemical circulating pickling device for small coolers in power plants to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A chemical circulating pickling device for small coolers in power plants, including a fixing frame, a pickling water tank, and a pickling pump body. Inside the fixing frame, there are a small - type A lubricating oil cooler and a small - type B lubricating oil cooler. A connecting pipe is arranged outside the small - type A lubricating oil cooler and the small - type B lubricating oil cooler. A flow - control regulating mechanism is arranged outside the small - type A lubricating oil cooler. An external water pipe is fixedly installed on the top of the pickling water tank. A drain pipe is arranged outside the pickling water tank. A stirring and mixing treatment mechanism is arranged on the top and inside of the pickling water tank. A liquid - suction pipe and a liquid - discharge pipe are arranged outside the pickling pump body.

[0006] The flow - control regulating mechanism includes a flow - regulating component and a connecting component, and the connecting component is arranged outside the flow - regulating component.

[0007] Preferably, the flow rate regulating assembly includes a mounting frame which is fixedly installed outside the small-sized Type A lubricating oil cooler. A limiting frame is fixedly installed outside the mounting frame. A connecting pipe is movably arranged outside the limiting frame. An adjusting block is movably arranged inside the limiting frame. A connecting disk is movably arranged on the top of the adjusting block. A gear disk is fixedly installed outside the connecting disk. A first motor is fixedly installed outside the small-sized Type A lubricating oil cooler. A first gear is fixedly installed on the output shaft of the first motor, which is convenient for dynamically controlling the amount of pickling solution flowing into the small-sized Type A lubricating oil cooler.

[0008] Preferably, a limiting chute is opened at a position corresponding to the flow rate regulating assembly inside the limiting frame. The adjusting block is slidably installed in the limiting chute. A guiding groove is opened at a position corresponding to the adjusting block inside the connecting disk. The adjusting block is movably installed in the guiding groove. The first gear meshes with the gear disk. There are six groups of adjusting blocks, which is convenient for dynamically adjusting the opening size of the caliber according to the actual use situation.

[0009] Preferably, the connecting assembly includes a connecting column which is fixedly installed outside the connecting pipe. A sleeve is slidably installed outside the connecting column. A first spring is fixedly installed inside the connecting column. A movable locking ball is movably installed inside the connecting column. An inserting pipe is inserted and installed inside the connecting column, which is convenient for quickly installing between the connecting pipe and the liquid outlet pipe according to the pickling requirements.

[0010] Preferably, a mounting hole is opened at a position corresponding to the movable locking ball inside the connecting column. The sleeve abuts against the connecting column inside. A limiting groove is opened between the connecting column and the sleeve. The first spring is arranged between the sleeve and the limiting groove. A butting block is installed at a position corresponding to the movable locking ball inside the sleeve. The inserting pipe is fixedly installed outside and connected to the liquid outlet pipe, which is convenient for achieving the effect of quick installation and disassembly.

[0011] Preferably, the stirring and mixing treatment mechanism includes a motor base which is fixedly installed on the top of the pickling water tank. A second motor is fixedly installed inside the motor base. A connecting rod is fixedly installed on the output shaft of the second motor. A first stirring blade is arranged outside the connecting rod. A second stirring blade is fixedly installed outside the connecting rod, which is convenient for fully stirring the pickling solution inside the pickling water tank, ensuring the full mixing of the external water and the pickling components, and ensuring the pickling effect.

[0012] Preferably, a connecting hole is opened at a position corresponding to the connecting rod on the top of the pickling water tank. The connecting rod passes through the connecting hole. The first stirring blade and the second stirring blade are symmetrically arranged, which can realize the full stirring and mixing of the pickling solution mixture.

[0013] Compared with the prior art, the utility model provides a chemical circulating pickling device for a small cooler in a power plant, which has the following beneficial effects:

[0014] 1. For the chemical circulating pickling device for the small cooler in the power plant, by setting a flow control and adjustment mechanism, during use, under the combined action of the flow adjustment component and the connection component, a quick installation can be formed between the connecting pipe and the liquid outlet pipe according to the pickling requirements, and the amount of pickling solution flowing into the small A lubricating oil cooler and the small B lubricating oil cooler can be dynamically controlled, avoiding the problem that the pickling effect inside the small A lubricating oil cooler and the small B lubricating oil cooler is reduced due to too much or too little pickling solution entering.

[0015] 2. For the chemical circulating pickling device for the small cooler in the power plant, by setting a stirring and mixing treatment mechanism, during use, the pickling solution in the pickling water tank can be fully stirred to ensure the full mixing of external water and pickling components, ensure the circulating pickling effect, and ensure the uniformity of the concentration in the pickling water tank during the circulating pickling work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0017] Figure 1 It is a schematic diagram of the external structure of the present utility model;

[0018] Figure 2 It is a schematic diagram of the rear view structure of the present utility model;

[0019] Figure 3 It is a schematic diagram of the disassembled structure of the flow adjustment component of the present utility model;

[0020] Figure 4 It is a schematic diagram of the disassembled structure of the connection component of the present utility model;

[0021] Figure 5 It is a schematic diagram of the disassembled structure of the stirring and mixing treatment mechanism of the present utility model.

[0022] In the figure: 1, fixing frame; 2, small type A lubricating oil cooler; 3, small type B lubricating oil cooler; 4, connecting pipe; 5, flow control and adjustment mechanism; 51, flow adjustment component; 511, mounting frame; 512, limiting frame; 513, connecting pipe; 514, adjustment block; 515, connecting disk; 516, gear disk; 517, first motor; 518, first gear; 52, connecting component; 521, connecting column; 522, socket cylinder; 523, first spring; 524, movable locking ball; 525, inserting pipe; 61, pickling water tank; 62, external water pipe; 63, drain pipe; 7, stirring and mixing treatment mechanism; 71, motor seat; 72, second motor; 73, connecting rod; 74, first stirring blade; 75, second stirring blade; 81, pickling pump body; 82, liquid suction pipe; 83, liquid outlet pipe. Detailed implementation mode

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] Embodiment 1:

[0026] Please refer to Figures 1-4 , the present invention provides a technical solution: a chemical circulation pickling device for a small cooler in a power plant, including a fixing frame 1, a pickling water tank 61, and a pickling pump body 81. Inside the fixing frame 1, there is a small type A lubricating oil cooler 2 and a small type B lubricating oil cooler 3. Outside the small type A lubricating oil cooler 2 and the small type B lubricating oil cooler 3, there is a connecting pipe 4. Outside the small type A lubricating oil cooler 2, there is a flow control and adjustment mechanism 5. On the top of the pickling water tank 61, an external water pipe 62 is fixedly installed. Outside the pickling water tank 61, there is a drain pipe 63. On the top and inside of the pickling water tank 61, there is a stirring and mixing treatment mechanism 7. Outside the pickling pump body 81, there is a liquid suction pipe 82 and a liquid outlet pipe 83.

[0027] The flow control and adjustment mechanism 5 includes a flow adjustment component 51 and a connection component 52, and the connection component 52 is arranged outside the flow adjustment component 51.

[0028] Furthermore, the flow adjustment component 51 includes a mounting frame 511 which is fixedly installed outside the small-sized A lubricating and cooling oil cooler 2. A limiting frame 512 is fixedly installed outside the mounting frame 511. A connecting pipe 513 is movably arranged outside the limiting frame 512. An adjusting block 514 is movably arranged inside the limiting frame 512. A connecting disc 515 is movably arranged on the top of the adjusting block 514. A gear disc 516 is fixedly installed outside the connecting disc 515. A first motor 517 is fixedly installed outside the small-sized A lubricating and cooling oil cooler 2. A first gear 518 is fixedly installed on the output shaft of the first motor 517, which is convenient for dynamically controlling the amount of pickling solution flowing into the small-sized A lubricating and cooling oil cooler 2.

[0029] Furthermore, limiting chutes are provided at positions corresponding to the flow adjustment component 51 inside the limiting frame 512, and the adjusting block 514 is slidably installed in the limiting chutes. Guide grooves are provided at positions corresponding to the adjusting block 514 inside the connecting disc 515, and the adjusting block 514 is movably installed in the guide grooves. The first gear 518 meshes with the gear disc 516. Six groups of adjusting blocks 514 are provided, which is convenient for dynamically adjusting the opening and closing size of the aperture according to actual usage conditions.

[0030] Furthermore, the connection component 52 includes a connection column 521 which is fixedly installed outside the connecting pipe 513. A socket cylinder 522 is slidably installed outside the connection column 521. A first spring 523 is fixedly installed inside the connection column 521. A movable locking ball 524 is movably installed inside the connection column 521. An insertion connecting pipe 525 is inserted and installed inside the connection column 521, which is convenient for quickly installing between the connecting pipe 513 and the liquid outlet pipe 83 according to pickling requirements.

[0031] Furthermore, mounting holes are provided at positions corresponding to the movable locking ball 524 inside the connection column 521. The inside of the socket cylinder 522 abuts against the connection column 521. A limiting groove is provided between the connection column 521 and the socket cylinder 522. The first spring 523 is arranged between the socket cylinder 522 and the limiting groove. A contact block is installed at a position corresponding to the movable locking ball 524 inside the socket cylinder 522. The outside of the insertion connecting pipe 525 is fixedly installed with the liquid outlet pipe 83, which is convenient for achieving the effect of quick installation and disassembly.

[0032] Embodiment 2:

[0033] Please refer to Figure 5, and in combination with Embodiment 1, it is further obtained that the stirring and mixing mechanism 7 includes a motor base 71, the motor base 71 is fixedly installed on the top of the pickling water tank 61, a second motor 72 is fixedly installed inside the motor base 71, a connecting rod 73 is fixedly installed on the output shaft of the second motor 72, a first stirring blade 74 is arranged outside the connecting rod 73, and a second stirring blade 75 is fixedly installed outside the connecting rod 73, which is convenient for fully stirring the pickling solution inside the pickling water tank 61, ensuring the full mixing of external water and pickling components, and ensuring the pickling effect.

[0034] Furthermore, a connection hole is opened at the corresponding position of the top of the pickling water tank 61 and the connecting rod 73, the connecting rod 73 penetrates through the connection hole, and the first stirring blade 74 and the second stirring blade 75 are symmetrically arranged, which can realize the full stirring and mixing of the pickling solution mixture.

[0035] During the actual operation process, when this device is in use and pickling of the small A lubricating oil cooler 2 and the small B lubricating oil cooler 3 is required, the pickling solution can be added into the pickling water tank 61. Subsequently, the external water source can be connected to the external water pipe 62 as needed. Pull the socket cylinder 522 outwards, then insert the liquid outlet pipe 83 into the connecting column 521 through the insertion pipe 525. Then release the socket cylinder 522. Under the rebounding action of the first spring 523, the movable locking ball 524 abuts against the groove of the insertion pipe 525, thus completing the connection between the liquid outlet pipe 83 and the connecting pipe 513. Subsequently, to ensure the flow duration of the pickling solution inside the small A lubricating oil cooler 2 and the small B lubricating oil cooler 3 and improve the contact between the pickling solution and the inside of the small A lubricating oil cooler 2 and the small B lubricating oil cooler 3, the first motor 517 can be turned on to rotate the first gear 518, so as to rotate the gear disk 516 engaged therewith, and make the connecting disk 515 rotate synchronously, so as to make the adjusting block 514 slide along the direction of the guiding groove inside the connecting disk 515. Under the action of the limiting sliding groove inside the limiting frame 512, the adjusting block 514 can move inwards or outwards, thereby changing the aperture and controlling the flow rate of the pickling solution flowing into the small A lubricating oil cooler 2, avoiding the problem that the pickling effect inside the small A lubricating oil cooler 2 and the small B lubricating oil cooler 3 is reduced due to too much or too little pickling solution entering. Subsequently, the pickling pump body 81 can be turned on. Under the action of the liquid extraction pipe 82, the pickling solution inside the pickling water tank 61 can be pumped out, discharged into the small A lubricating oil cooler 2 through the liquid outlet pipe 83 for pickling, and then flows back into the small B lubricating oil cooler 3 through the action of the communicating pipe 4 for water washing, and finally flows back into the pickling water tank 61 through the communicating pipe 4 outside the small B lubricating oil cooler 3, realizing the circulating pickling effect. To ensure the continuous pickling effect, the second motor 72 can be turned on to rotate the connecting rod 73, so as to make the first stirring blade 74 and the second stirring blade 75 arranged rotate synchronously to stir the pickling solution inside the pickling water tank 61, ensure uniform mixing, and improve the pickling of the small A lubricating oil cooler 2 and the small B lubricating oil cooler 3.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

Claims

1. A chemical circulating pickling device for a small cooler in a power plant, comprising a fixing frame (1), a pickling water tank (61), and a pickling pump body (81), characterized in that: Inside the fixing frame (1), there is a small lubricating oil cooler A (2) and a small lubricating oil cooler B (3). A connecting pipe (4) is arranged outside the small lubricating oil cooler A (2) and the small lubricating oil cooler B (3). A flow control and adjustment mechanism (5) is arranged outside the small lubricating oil cooler A (2). At the top of the pickling water tank (61), an external water pipe (62) is fixedly installed. A drain pipe (63) is arranged outside the pickling water tank (61). A stirring and mixing treatment mechanism (7) is arranged at the top and inside of the pickling water tank (61). A liquid suction pipe (82) and a liquid outlet pipe (83) are arranged outside the pickling pump body (81); The flow control and adjustment mechanism (5) includes a flow adjustment component (51) and a connection component (52). The connection component (52) is arranged outside the flow adjustment component (51).

2. The chemical circulation pickling equipment for a small cooler in a power plant according to claim 1, characterized in that: The flow adjustment component (51) includes a mounting frame (511). The mounting frame (511) is fixedly installed outside the small lubricating oil cooler A (2). A limiting frame (512) is fixedly installed outside the mounting frame (511). A connecting pipe (513) is movably arranged outside the limiting frame (512). An adjusting block (514) is movably arranged inside the limiting frame (512). A connecting disk (515) is movably arranged at the top of the adjusting block (514). A gear disk (516) is fixedly installed outside the connecting disk (515). A first motor (517) is fixedly installed outside the small lubricating oil cooler A (2). A first gear (518) is fixedly installed on the output shaft of the first motor (517).

3. The chemical circulation pickling equipment for a small cooler in a power plant according to claim 2, characterized in that: A limiting sliding groove is opened at a position corresponding to the flow adjustment component (51) inside the limiting frame (512). The adjusting block (514) is slidably installed in the limiting sliding groove. A guiding groove is opened at a position corresponding to the adjusting block (514) inside the connecting disk (515). The adjusting block (514) is movably installed in the guiding groove. The first gear (518) meshes with the gear disk (516). There are six groups of the adjusting blocks (514).

4. A chemical circulation pickling device for a small cooler in a power plant according to claim 1, characterized in that: The connection component (52) includes a connecting column (521). The connecting column (521) is fixedly installed outside the connecting pipe (513). A socket cylinder (522) is slidably installed outside the connecting column (521). A first spring (523) is fixedly installed inside the connecting column (521). A movable locking ball (524) is movably installed inside the connecting column (521). An insertion connecting pipe (525) is inserted and installed inside the connecting column (521).

5. The chemical circulation pickling equipment for a small cooler in a power plant according to claim 4, characterized in that: An installation hole is provided at a position corresponding to the movable locking ball (524) inside the connecting column (521). The inside of the socket cylinder (522) abuts against the connecting column (521). A limiting groove is provided between the connecting column (521) and the socket cylinder (522). The first spring (523) is arranged between the socket cylinder (522) and the limiting groove. An abutting block is installed at a position corresponding to the movable locking ball (524) inside the socket cylinder (522). The outside of the insertion pipe (525) is fixedly installed with the liquid outlet pipe (83).

6. The chemical circulation pickling equipment for a small cooler in a power plant according to claim 1, characterized in that: The stirring and mixing processing mechanism (7) includes a motor base (71). The motor base (71) is fixedly installed on the top of the pickling water tank (61). A second motor (72) is fixedly installed inside the motor base (71). A connecting rod (73) is fixedly installed on the output shaft of the second motor (72). A first stirring blade (74) is arranged outside the connecting rod (73). A second stirring blade (75) is fixedly installed outside the connecting rod (73).

7. A chemical circulating pickling device for a small cooler in a power plant according to claim 6, characterized in that: A connection hole is provided at a position corresponding to the connecting rod (73) on the top of the pickling water tank (61). The connecting rod (73) penetrates through the connection hole. The first stirring blade (74) and the second stirring blade (75) are symmetrically arranged.

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