CN217276715U - A kind of air tightness detection device for boiler in thermal power plant - Google Patents

Abstract

The utility model discloses an air tightness detection device for a thermal power plant boiler, which comprises a closed box body and a transparent container, a sealing door is arranged on the front side of the closed box body, and the bottom of the closed box body and the transparent container are connected by a communication pipe , There is a one-way valve on the communication pipe; the bottom of the closed box is provided with a support seat for placing the boiler, the upper part of the closed box is provided with a support plate, the support plate is connected with the lifting device, and the support plate can be driven by the lifting device. Lift up and down in the closed box; the support plate is provided with an inflatable pipe, the top of the closed box is provided with an air pump, the air pump is connected with a pressure pipe, and the pressure pipe runs through the side wall of the closed box and is connected to the inflatable pipe, and the inflatable pipe The end far away from the pressure pipe is provided with a charging joint for connecting with the boiler. The utility model drives the support plate to rise and fall through the lifting device, so that the air-filled interface on the support plate can move with the movement of the support plate, so that it can adapt to boilers of different height specifications.

Description

A kind of air tightness detection device for boiler in thermal power plant

technical field

The utility model relates to the technical field of boiler detection, in particular to an air tightness detection device for boilers in thermal power plants.

Background technique

Boilers used in thermal power plants often use air tightness detection to test the air tightness of boilers. It can realize the detection of boilers with different height specifications, but cannot realize the visualization of the detection results, which is not conducive to the observation of the detection results.

Utility model content

In order to solve the above-mentioned technical problems, the purpose of the present invention is to provide an air tightness detection device for a boiler of a thermal power plant.

According to one object of the present utility model, the utility model provides an air tightness detection device for a boiler of a thermal power plant, which includes a closed box body and a transparent container, the front side of the closed box body is provided with a sealing door, and the closed box is provided with a sealing door. The bottom of the body and the transparent container are connected by a communication pipe, and the communication pipe is provided with a one-way valve;

The inner bottom of the closed box is provided with a support seat for placing the boiler, the upper part of the closed box is provided with a support plate, the support plate is connected with the lifting device, and the support plate can be driven by the lifting device. Lift up and down in the airtight box;

The support plate is provided with an inflatable pipe, the top of the airtight box is provided with an air pump, the air pump is connected with a pressure pipe, and the pressure pipe penetrates the side wall of the airtight case and is connected to the inflatable pipe , the end of the charging pipe away from the pressure pipe is provided with a charging joint for connecting with the boiler.

Further, the airtight door is hingedly connected to the airtight box.

Further, a sealing strip is provided between the sealing door and the sealing box.

Further, a wheel handle is installed on the front end surface of the sealing door, a gear is installed inside the sealing door, and a lock rod is meshed and installed on the upper and lower sides of the annular side surface of the gear.

Further, the lifting device includes a servo motor and a screw rod, the servo motor is fixed on the inner top end of the airtight box, the top end of the screw rod is connected to the output end of the servo motor, and the support plate is provided with a A screw hole, the screw thread is connected to the support plate through the screw hole, vertical guide grooves are opened on the two opposite side walls of the airtight box, and limit blocks are arranged on both sides of the support plate, so The limit block is engaged in the vertical guide groove, and the limit block can slide up and down in the vertical guide groove.

Further, the number of the servo motors is two, the rotational speed of the two servo motors is the same, each of the servo motors is connected with the screw rod, and the screw rod is all screwed with the support plate.

Further, the transparent container is a glass container, and the transparent container contains water.

Further, at least two of the limiting blocks are respectively provided on both sides of the support plate.

Further, a buffer layer is provided between the support base and the bottom of the airtight box.

Further, the buffer layer includes a rubber layer laid in the airtight box.

Beneficial effects:

The technical scheme of the utility model drives the support plate to lift through the lifting device, so that the air-filled interface on the support plate can move with the movement of the support plate, so that it can adapt to boilers of different heights and specifications, and the air pump can output air during use. , The air is input into the main body of the boiler through the inflatable pipe. When the air tightness of the detected boiler is not enough, the air will seep out from the boiler and enter the inside of the closed box, so that the excess air will enter the transparent container through the communication pipe. Inside, since the transparent container contains water, when the air enters the transparent container, air bubbles will be generated in the water, so that people can observe whether the boiler is airtight.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the following descriptions The accompanying drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the internal structure schematic diagram of the utility model;

3 is a schematic diagram of the internal structure of the sealed door of the present invention;

Description of reference numerals: 1. Airtight box; 2. Transparent container; 3. Connecting pipe; 4. One-way valve; 5. Supporting seat; 6. Buffer layer; 7. Boiler; 8. Supporting plate; 9. Servo motor ;10, screw; 11, vertical guide channel; 12, limit block; 13, inflation pipe; 14, air pump; 15, pressure pipe; 16, inflation joint; 17, sealing door; 18, wheel handle; 19, Gear; 20. Lock lever.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" etc. Or the positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operation, so it cannot be construed as a limitation to the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second" may expressly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be It is directly connected, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example 1

As shown in Figure 1-3,

An air tightness detection device for a boiler of a thermal power plant, comprising a closed box 1 and a transparent container 2, the transparent container 2 is a glass container, and the transparent container 2 is filled with water. The bottom of the closed box 1 and the transparent container 2 are connected by a communication pipe 3, and a check valve 4 is arranged on the communication pipe 3; during detection, when the air tightness of the detected boiler is not enough, the air will seep out of the boiler , into the airtight box 1, so that the excess air enters the transparent container 2 through the communication pipe 3. Since the transparent container 2 is provided with water, when the air enters the transparent container 2, bubbles will be generated in the water, so that the It is well observed whether the boiler is airtight. The one-way valve 4 can prevent water from entering the closed box 1 from the transparent container 2 .

The inner bottom of the airtight box 1 is provided with a support seat 5 for placing the boiler, a buffer layer 6 is arranged between the support seat 5 and the bottom of the airtight box 1 , and the buffer layer 6 includes a rubber layer laid in the airtight box 1 . The boiler 7 can be supported by the support base 5 , and the buffer layer 6 can provide buffer for the boiler 7 when the boiler 7 is hoisted into the closed box 1 by the hoisting device.

The upper part of the airtight box body 1 is provided with a support plate 8, which is connected with the lifting device, and the support plate 8 can be lifted up and down in the airtight box body 1 under the driving of the lifting device; the lifting device includes two servo motors 9 and screws 10 , the rotational speed of the two servo motors 9 is the same, each servo motor 9 is connected with a screw 10, the servo motor 9 is fixed on the inner top of the airtight box 1, the top of the screw 10 is connected with the output end of the servo motor 9, and the support plate 8 There are screw holes on the upper part, the screw 10 is threaded through the screw holes and connected with the support plate 8, the two opposite side walls of the airtight box 1 are provided with vertical guide grooves 11, and the two sides of the support plate 8 are provided with two limit blocks 12 , the limit block 12 is engaged in the vertical guide groove 11 and the limit block 12 can slide up and down in the vertical guide groove 11 .

The support plate 8 is provided with an inflatable tube 13, an air pump 14 is provided on the top of the airtight box 1, the air pump 14 is connected with a pressure pipe 15, and the pressure tube 15 penetrates through the side wall of the airtight box 1 and is connected to the inflatable tube 13. One end of 13 away from the pressure pipe 15 is provided with a charging joint 16 for connecting with the boiler 7 .

The front side of the airtight box 1 is provided with a sealing door 17, the sealing door 17 is hingedly connected with the airtight box 1, a sealing strip is arranged between the airtight door 1 and the airtight box 17, and a wheel handle 18 is installed on the front end of the sealing door 17 , a gear 19 is installed inside the sealing door 1, and a locking rod 20 is installed on the upper and lower sides of the annular side of the gear 19. The sealing door 17 and the sealing box 1 can be locked together by the locking rod 20. The wedge-shaped design, through the rotation of the gear 19, can make the wedge-shaped locking rod 20 lock the sealing door 17 and the sealing box 1 tightly.

When in use, the screw 10 is driven to rotate by the servo motor 9. Since the screw 10 and the support plate 8 are threadedly connected, at the same time, the limit block 12 can guide and limit the support plate 8, so that the rotation of the servo motor can drive the support plate. 8 is lifted up and down on the screw 10, so that the gas-filled joint 16 on the support plate 8 can move with the movement of the support plate 8, so that it can adapt to boilers of different height specifications. During the detection, the air is output through the air pump 14, the compressed air is fed into the charging pipe 13 through the pressure pipe 15, and is input into the boiler 7 through the charging joint 16. When the air tightness of the detected boiler 7 is not enough, the air will be discharged from the boiler. 7 seeps out into the closed box 1, so that the excess air will enter the transparent container 2 through the communication pipe 3. Since the transparent container 2 is provided with water, when the air enters the transparent container 2, it will be in the water. Air bubbles are generated, so that people can observe whether the boiler is airtight.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that : it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the various embodiments of the present utility model Scope of technical solutions.

Claims (10)

1. The air tightness detection device for the thermal power plant boiler is characterized by comprising a closed box body and a transparent container, wherein a sealing door is arranged on the front side of the closed box body, the bottom of the closed box body is connected with the transparent container through a communicating pipe, and a check valve is arranged on the communicating pipe;

a supporting seat for placing a boiler is arranged at the bottom inside the closed box body, a supporting plate is arranged at the upper part of the closed box body and connected with a lifting device, and the supporting plate can be driven by the lifting device to lift up and down in the closed box body;

be equipped with the gas tube in the backup pad, the top of airtight box is equipped with the air pump, the air pump is connected with the pressure pipe, the pressure pipe runs through the lateral wall of airtight box with the gas tube is connected, the gas tube is kept away from the one end of pressure pipe be equipped with be used for with gas connection connects to the boiler.

2. The air-tightness detecting device for a thermal power plant boiler according to claim 1, wherein said airtight door is hingedly connected to said hermetic case.

3. The air-tightness detecting device for a boiler of a thermal power plant according to claim 2, wherein a sealing strip is provided between the sealing door and the hermetic container.

4. The airtightness detection apparatus for the boiler of the thermal power plant according to claim 3, wherein a wheel disc handle is installed on a front end face of the sealing door, a gear is installed inside the sealing door, and locking levers are installed on upper and lower sides of an annular side face of the gear in a meshing manner.

5. The air tightness detection device for the thermal power plant boiler according to claim 1, wherein the lifting device comprises a servo motor and a screw rod, the servo motor is fixed at the top end of the inside of the closed box body, the top end of the screw rod is connected with the output end of the servo motor, a screw hole is formed in the supporting plate, the screw rod penetrates through the screw hole and is in threaded connection with the supporting plate, vertical guide grooves are formed in two opposite side walls of the closed box body, limiting blocks are arranged on two sides of the supporting plate, and the limiting blocks are clamped in the vertical guide grooves and can slide up and down in the vertical guide grooves.

6. The airtightness detection apparatus for a boiler of a thermal power plant according to claim 5, wherein the number of the servo motors is two, the rotation speeds of the two servo motors are the same, each of the servo motors is connected with the screw, and the screw is in threaded connection with the support plate.

7. The airtightness detection apparatus for a boiler of a thermal power plant according to claim 1, wherein the transparent container is a glass container, and water is contained in the transparent container.

8. The airtightness detection apparatus for a boiler of a thermal power plant according to claim 5, wherein at least two of the stoppers are provided on both sides of the support plate, respectively.

9. The apparatus of claim 1, wherein a buffer layer is disposed between the supporting base and the bottom of the hermetic container.

10. The air-tightness detecting device for a boiler of a thermal power plant according to claim 9, characterized in that the buffer layer comprises a rubber layer laid in the hermetic case.

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