Boiler pickling throttling device

Abstract

The utility model relates to the technical field of boiler pickling auxiliary devices, in particular to a boiler pickling throttling device which comprises a fixing structure and a throttling structure, the fixing structure comprises a jacking plate, a flower basket screw and a pressing plate, the throttling structure comprises a throttling plate, an upper screw of the flower basket screw penetrates through a through hole of the jacking plate, and a lower screw of the flower basket screw penetrates through a through hole of the pressing plate. The upper screw rod is provided with a nut above and below the jacking plate respectively, and the jacking plate is fixed by screwing the upper nut and the lower nut; a lower screw rod of the turnbuckle sequentially penetrates through the through hole in the pressing plate and the strip-shaped groove in the throttling plate, the lower screw rod is provided with a nut at the upper part of the pressing plate and the lower part of the throttling plate respectively, and the pressing plate and the throttling plate are fixed by screwing the upper nut and the lower nut; the device is practical and easy to operate, a pipeline in the boiler serves as a fulcrum, the turn buckle drives the jacking plate to jack the oil pipe and the throttle plate to cover and press the inner wall of a channel formed in the boiler, and the device can adapt to boilers under different working conditions by arranging the throttle plates in different shapes.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler pickling auxiliary device technical field more specifically, it is a kind of boiler pickling throttling device. BACKGROUND

[0002] Boiler pickling operation needs to make pickling liquid can be evenly distributed in each heating surface of boiler, ensure cleaning effect, also consider pickling cost, this needs to control the flow rate of pickling liquid. Current commonly used orifice plate is used to adjust the flow and flow rate of pickling liquid, but the installation mode of existing orifice plate has many problems: for example, fixed installation mode, installation process is tedious, such as welding first when using, after work is finished, cut down again, but it is known that electric welding operation in steam drum is strictly required, consume a lot of manpower and time, affect pickling efficiency;And using simple installation mode, rely on the gravity of orifice plate to cover on the passageway mouth, the stability of orifice plate after installation is poor, under the high-speed scouring of pickling liquid, it is easy to displace, loosen even fall off, lead to pickling liquid flow regulation out of control, cannot guarantee the uniformity of cleaning, reduce cleaning quality, serious time still can cause local corrosion of boiler, damage and other security risks. SUMMARY

[0003] To solve the above problems, overcome the deficiencies of prior art, the utility model provides a kind of quick fixed installation of utilizing the existing pipeline structure in boiler and welding-free boiler pickling throttling device

[0004] To achieve the above object, the boiler pickling throttling device provided by the utility model, including fixed structure and throttling structure, the fixed structure includes top tight plate, flower basket screw rod, pressing plate, the throttling structure includes throttling plate, the upper screw rod of flower basket screw rod passes through the through-hole of top tight plate, the upper screw rod is arranged with one nut on top tight plate and down respectively, and top tight plate is fixed by screwing the upper and lower nuts;The lower screw rod of flower basket screw rod passes through the through-hole on pressing plate and the strip-shaped slot on throttling plate in sequence, the lower screw rod is arranged with one nut on the upper portion of pressing plate and the lower portion of throttling plate respectively, and pressing plate and throttling plate are fixed by screwing the upper and lower nuts.

[0005] Further, each throttling structure is fixed by two fixed structures, and each fixed structure is provided with two flower basket screw rods.

[0006] Further, the throttling plate is a two-piece structure, and an open strip-shaped slot matched with the lower screw rod is formed on the inner edge of each piece of the throttling plate, and the open strip-shaped slots are parallel to each other.

[0007] Further, the throttling plate and the pressing plate are preferably in a flat plate structure.

[0008] Further, the throttle plate is another preferred structure of arc-shaped plate structure, the lower surface of the pressing plate is arc-shaped structure matched with the throttle plate, and the upper surface of the pressing plate is plane structure perpendicular to the lower screw rod.

[0009] The utility model discloses the beneficial effect is: the utility model discloses practical easy operation, with the pipeline in the boiler as fulcrum, through the flower basket screw rod drive top -tight board top -tight oil pipe and throttle board cover press in the inner wall of the passage of the boiler, through setting up different shapes's throttle board can adapt to the boiler of different working conditions.

[0010] The strip-shaped groove on the throttle plate is opened as an open strip-shaped groove, which facilitates the assembly of the throttling device inside the boiler; and the length of the strip-shaped groove also facilitates the adjustment of the flow rate by adjusting the relative position of the throttle plate and the pressing plate.

[0011] Meanwhile, the lower screw rod of the flower basket screw rod extends into the passage, which can further displace the throttling device under impact and increase stability. BRIEF DESCRIPTION OF DRAWINGS

[0012] ATTACHMENT Figure 1 is the structure schematic diagram of the straight plate throttling device of the utility model;

[0013] ATTACHMENT Figure 2 is the structure schematic diagram of the bottom view of the straight plate throttling device of the utility model;

[0014] ATTACHMENT Figure 3 is the structure schematic diagram of the arc-shaped plate throttling device of the utility model;

[0015] ATTACHMENT Figure 4 is the structure schematic diagram of the bottom view of the arc-shaped plate throttling device of the utility model;

[0016] ATTACHMENT Figure 5 is the closed structure schematic diagram of the straight plate throttling device of the utility model;

[0017] ATTACHMENT Figure 6 is the open structure schematic diagram of the straight plate throttling device of the utility model;

[0018] ATTACHMENT Figure 7 is the structure schematic diagram of the bottom view of the open straight plate throttling device of the utility model;

[0019] ATTACHMENT Figure 8 is the open structure schematic diagram of the arc-shaped plate throttling device of the utility model;

[0020] ATTACHMENT Figure 9 is the structure schematic diagram of the bottom view of the arc-shaped plate throttling device of the utility model;

[0021] In the drawing: 1, top tight plate, 2, basket screw, 31a, first straight throttle plate, 31b, second straight throttle plate, 32a, first arc throttle plate, 32b, second arc throttle plate, 4a, straight pressing plate, 4b, arc pressing plate, 5a, flat bottom plate, 5b, arc bottom plate, 6, pipeline. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model will be described in more detail below in combination with the drawings of the utility model.

[0023] In the description of the utility model, it is understood that the description of the indicated position or positional relationship is based on the position or positional relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the protection scope of the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] As shown in the drawing Figures 1-9 The acid pickling throttle device of the boiler comprises a fixed structure and a throttle structure, the fixed structure comprises a top tight plate 1, a basket screw 2 and a pressing plate, the throttle structure comprises a throttle plate, the upper screw of the basket screw 2 passes through the through hole of the top tight plate 1, the upper screw is provided with a nut above and below the top tight plate 1, and the top tight plate 1 is fixed by screwing the upper and lower nuts; the lower screw of the basket screw 2 passes through the through hole on the pressing plate and the strip-shaped slot on the throttle plate in sequence, the lower screw is provided with a nut on the upper part of the pressing plate and the lower part of the throttle plate, and the pressing plate and the throttle plate are fixed by screwing the upper and lower nuts.

[0026] Each of the throttle structures is fixed by two fixed structures, and each fixed structure is provided with two basket screws 2.

[0027] The throttle plate is a two-piece structure, and an open strip-shaped slot matched with the lower screw is formed on the inner edge of each piece of the throttle plate, and the open strip-shaped slots are parallel to each other.

[0028] A preferred structure for the throttling plate and the clamping plate is a flat plate structure.

[0029] Another preferred structure of the throttling plate is an arc-shaped plate structure, wherein the lower surface of the pressure plate is an arc-shaped structure adapted to the throttling plate, and the upper surface of the pressure plate is a planar structure perpendicular to the lower screw.

[0030] Specifically:

[0031] For easy and secure fixing, the boiler acid washing throttling device is designed with two main parts: a fixed structure and a throttling structure. The fixed structure includes a top clamping plate 1, a turnbuckle 2, and a pressure plate, while the throttling structure includes a throttling plate.

[0032] The upper screw of the turnbuckle 2 passes through the through hole of the top clamping plate 1 and is fixed to the top clamping plate 1 by means of double nuts. The lower screw of the turnbuckle 2 passes through the through hole on the pressure plate and the strip groove on the throttling plate in sequence, and is also fixed to the pressure plate and the throttling plate by means of double nuts. In this way, the fixing structure and the throttling structure are connected together by the lower screw of the turnbuckle 2. By rotating the connecting nut in the middle of the turnbuckle 2, the relative fixation and movement of the throttling device and the boiler can be achieved.

[0033] To ensure stability after compression, each throttling structure is fixed by two fixing structures, each of which is equipped with two turnbuckles 2; in this way, the two ends of the throttling plate and the two ends of the pressing plate are subjected to balanced forces.

[0034] When acid flows rapidly, passing through the middle of the throttling device is more conducive to its stability than passing through one side. Therefore, the throttling plate is designed as a two-lobed structure, with parallel open slots on the inner edges of the two lobes. The two lobes are connected to the channel by pulling the throttling plate outward.

[0035] Example 1

[0036] As attached Figure 1 , 2 As shown in Figures 5, 6, and 7, when the boiler has a flat bottom plate 5a on the inner wall of the acid liquid passage, the throttling plate is configured as a flat plate structure, and the two halves of the throttling plate are a first straight throttling plate 31a and a second straight throttling plate 31b; the pressing plate is a flat plate structure straight pressing plate 4a.

[0037] Example 2

[0038] As attached Figure 3 , 4, 8, 9, when the boiler open through the inner wall of the acid liquid channel for arc-shaped bottom plate 5b, throttle plate structure is set to arc-shaped plate structure, the two petals of the throttle plate are respectively the first arc throttle plate 32a and the second arc throttle plate 32b; the pressing plate is an arc-shaped pressing plate 4b, the lower surface of the arc-shaped pressing plate 4b is an arc-shaped structure matched with the throttle plate, and the upper surface of the arc-shaped pressing plate 4b is a plane structure perpendicular to the lower screw rod.

[0039] The working principle is as follows:

[0040] The throttle device uses the pipeline 6 in the boiler as a fulcrum, drives the pressing plate 1 to press the oil pipe and the throttle plate to cover and press the inner wall of the channel opened by the boiler through the flower basket screw rod 2, and can adapt to boilers with different working conditions by setting throttle plates with different shapes.

[0041] If the space size in the boiler is small, the strip-shaped groove on the throttle plate is opened into an open strip-shaped groove, and the throttle device can be assembled in the boiler. The fixedly connected flower basket screw rod 2 and pressing plate 1 can be placed in the boiler, and then the open strip-shaped groove of the throttle plate is inserted into the flower basket screw rod 2 below the pressing plate.

[0042] If the channel needs to be completely closed, the two petals of the throttle plate are in close contact, and the nut on the lower flower basket screw rod 2 of the throttle plate is tightened. If a larger flow of acid liquid is required, a gap can be left in the middle of the two petals of the throttle plate. The larger the required flow rate, the larger the gap can be left. After the gap is set, the nut on the lower flower basket screw rod 2 of the throttle plate is tightened.

[0043] Then rotate the connecting nut in the middle of the flower basket screw rod 2, so that the upper screw rod and the lower screw rod of the flower basket screw rod 2 extend outward, the pressing plate 1 presses against the pipeline 6 in the boiler, and the lower screw rod drives the pressing plate to push the throttle plate to cover the channel and press the inner wall of the boiler. After pickling is completed, the throttle device can be removed by the opposite steps.

[0044] In addition to the technical features described in the specification, they are known to those skilled in the art.

Claims

1. A boiler pickling throttling device comprising a fixing structure and a throttling structure, characterized in that The fixed structure comprises a top pressing plate (1), a basket screw (2) and a pressing plate, the throttle structure comprises a throttle plate, the upper screw of the basket screw (2) passes through the through hole of the top pressing plate (1), the upper screw is provided with a nut above and below the top pressing plate (1) respectively, and the top pressing plate (1) is fixed by screwing the two nuts; the lower screw of the basket screw (2) passes through the through hole on the pressing plate and the strip-shaped slot on the throttle plate in sequence, the lower screw is provided with a nut above and below the pressing plate and the throttle plate respectively, and the pressing plate and the throttle plate are fixed by screwing the two nuts.

2. A boiler pickling throttling device as claimed in claim 1, characterized in that Each throttle structure is fixed by two fixed structures, and each fixed structure is provided with two basket screws (2).

3. The boiler pickling throttling device as claimed in claim 1, wherein The throttle plate is a two-piece structure, and the inner edges of the two pieces of the throttle plate are respectively provided with an open strip-shaped slot matched with the lower screw, and the open strip-shaped slots are parallel to each other.

4. A boiler pickling throttling device as claimed in claim 3, characterized in that The throttle plate is provided with a flat plate structure, and the two pieces of the throttle plate are a first straight throttle plate (31a) and a second straight throttle plate (31b) respectively; the pressing plate is provided with a straight pressing plate (4a) in a flat plate structure.

5. The boiler pickling throttling device as claimed in claim 3, wherein The throttle plate is provided with an arc plate structure, and the two pieces of the throttle plate are a first arc throttle plate (32a) and a second arc throttle plate (32b) respectively; the pressing plate is an arc pressing plate (4b), the lower surface of the arc pressing plate (4b) is an arc structure matched with the throttle plate, and the upper surface of the arc pressing plate (4b) is a plane structure perpendicular to the lower screw.

Images