Peak shaving electric boiler connecting structure

Abstract

The utility model discloses a peak-shaving electric boiler connecting structure, which relates to the technical field of pipeline connection, and comprises a first connecting assembly, a second connecting assembly, a third connecting assembly and a fourth connecting assembly, the first connecting assembly comprises a corrugated pipe, the left end and the right end of the corrugated pipe are respectively provided with a first sealing gasket, and the fourth connecting assembly is provided with a second sealing gasket; first flange plates are fixedly connected to the left end and the right end of the outer surface of the corrugated pipe correspondingly, and three evenly-distributed lug plates are fixedly connected to the outer surfaces of the two first flange plates. The third connecting piece connected with the electric boiler and the fourth connecting assembly communicated with the heat exchange system are connected through the first connecting assembly and the second connecting assembly respectively, when water vapor conveyed by the electric boiler becomes much and passes through the first connecting assembly, the corrugated pipe expands and absorbs displacement through elastic stretching, and meanwhile, the corrugated pipe is connected with the heat exchange system through the second connecting assembly. The electric telescopic rod drives the piston to move downwards to assist in relieving pressure rise caused by thermal expansion, and the situation that the pressure in the pipeline is too large and consequently the pipeline is damaged is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connection technical field, concretely relates to a kind of peak-shaving electric boiler connecting structure. BACKGROUND

[0002] Peak-shaving electric boiler is a kind of widely used electric heating equipment, mainly used to solve the problem of power grid load fluctuation, by converting excess electric energy into heat energy and storing, then by heat exchange system, heat is supplied to the industry or residential area that needs heat energy, peak-shaving electric boiler is to use electric heating element to heat the medium in the boiler, so as to provide enough heat source for heat demand, wherein, the boiler and heat exchange system need to be connected by pipeline, pipeline connection can play the role of conveying medium, ensure the smooth flow of medium between the boiler and heat exchange equipment.

[0003] When peak-shaving electric boiler converts excess power into heat energy and heats water, steam is generated, water vapor is transported to heat exchange system through pipeline, and then heat is transferred to the place where it is needed, but when the load of power grid is too large, in order to balance the load of power grid, the heat conversion efficiency will also be improved, at this time, the generation of water vapor will increase, which will increase the pressure inside the conveying pipeline, and then cause extrusion to the pipeline, resulting in damage to the pipeline, most pipeline connection structures are difficult to effectively prevent thermal expansion and material fatigue caused by high temperature and high pressure, so that the connection of pipeline is easily affected by thermal fatigue and corrosion, resulting in the decrease of sealing performance of the connection, and then leading to leakage, loose connection, even failure, based on this, the present scheme provides a kind of peak-shaving electric boiler connecting structure to solve the above problems. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problems, a kind of peak-shaving electric boiler connecting structure is provided, which solves the problem of peak-shaving electric boiler converting excess power into heat energy and heating water, which will generate steam, water vapor is transported to heat exchange system through pipeline, and then heat is transferred to the place where it is needed, but when the load of power grid is too large, in order to balance the load of power grid, the heat conversion efficiency will also be improved, at this time, the generation of water vapor will increase, which will increase the pressure inside the conveying pipeline, and then cause extrusion to the pipeline, resulting in damage to the pipeline, most pipeline connection structures are difficult to effectively prevent thermal expansion and material fatigue caused by high temperature and high pressure, so that the connection of pipeline is easily affected by thermal fatigue and corrosion, resulting in the decrease of sealing performance of the connection, and then leading to leakage, loose connection, even failure.

[0005] In order to achieve the above purpose, the utility model adopts the technical scheme that a kind of peak-shaving electric boiler connecting structure, including first connecting component, second connecting component, third connecting component and fourth connecting component.

[0006] The first connecting assembly comprises a bellows, the left and right ends of the bellows are provided with first sealing pads, the outer surfaces of the left and right ends of the bellows are fixedly connected with first flanges, the outer surfaces of the two first flanges are fixedly connected with three evenly distributed ear plates, the interiors of the left and right ear plates are provided with screw rods, the outer surfaces of the left and right ends of the screw rods are threadedly connected with movable bolts, the left and right ends of the screw rods are threadedly connected with nuts, and the interior of the bellows is provided with a flow guide cylinder.

[0007] The second connecting assembly comprises a pressure reducing pipe, the outer surface of the lower end of the pressure reducing pipe is fixedly connected with a communication pipe, the interior bottom end of the communication pipe is fixedly installed with an electric telescopic rod, and the output end of the electric telescopic rod is fixedly connected with a piston.

[0008] Preferably, the right end of the pressure reducing pipe is provided with a second sealing pad, the left and right ends of the outer surface of the pressure reducing pipe are fixedly connected with second flanges, and the left second flange is connected with the right first flange through a second connecting piece.

[0009] Preferably, the third connecting assembly comprises a first external connecting pipe, the outer surface of the right end of the first external connecting pipe is fixedly connected with a third flange, and the third flange is connected with the left first flange through a first connecting piece.

[0010] Preferably, the fourth connecting assembly comprises a second external connecting pipe, the outer surface of the left end of the second external connecting pipe is fixedly connected with a fourth flange, and the fourth flange is connected with the right second flange through a third connecting piece.

[0011] Preferably, the first sealing pads arranged at the left and right ends of the bellows are respectively in abutment with the right end of the third flange and the left end of the left second flange, and the second sealing pad arranged at the right end of the pressure reducing pipe is in abutment with the left end of the fourth flange.

[0012] Compared with the prior art, the utility model provides a peak shaving electric boiler connecting structure, has the following beneficial effect:

[0013] The utility model discloses a first connecting assembly and second connecting assembly connect third connecting piece connected with electric boiler and fourth connecting assembly communicated with heat exchange system respectively, when the water vapor of electric boiler delivery is more and passes through first connecting assembly, the bellows will expand, and the bellows absorbs displacement through elasticity expansion, simultaneously, electric telescopic rod drives piston to move down, and the pressure rise caused by thermal expansion is assisted to slow down, prevents the pressure in pipeline to be too big and damages the pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three -dimensional structure schematic diagram of the utility model;

[0015] Figure 2 is a structural schematic view of the first connecting piece in the utility model;

[0016] Figure 3 is a structural schematic view of the second connecting piece in the utility model;

[0017] Figure 4 is a structural schematic view of the third connecting piece in the utility model;

[0018] Figure 5 is a structural schematic view of the fourth connecting piece in the utility model.

[0019] The figure mark is:

[0020] 1, first connecting assembly; 101, corrugated pipe; 102, first sealing gasket; 103, first flange plate; 104, ear plate; 105, screw rod; 106, movable bolt; 107, nut; 108, flow guiding cylinder;

[0021] 2, second connecting assembly; 201, pressure reducing pipe; 202, second sealing gasket; 203, second flange plate; 204, communicating pipe; 205, electric telescopic rod; 206, piston;

[0022] 3, third connecting assembly; 301, first external connecting pipe; 302, third flange plate;

[0023] 4, fourth connecting assembly; 401, second external connecting pipe; 402, fourth flange plate;

[0024] 5, first connecting piece; 6, second connecting piece; 7, third connecting piece. DETAILED DESCRIPTION

[0025] The following description is used to disclose the utility model so that those skilled in the art can realize the utility model. The preferred embodiments in the following description are only as examples, and other obvious variants can be thought of by those skilled in the art.

[0026] Refer to Figures 1-5As shown, a peak-shaving electric boiler connecting structure, including a first connecting assembly 1, a second connecting assembly 2, a third connecting assembly 3 and a fourth connecting assembly 4, the first connecting assembly 1 includes a corrugated pipe 101, the first connecting assembly 1 is a transverse flange corrugated compensator, which can effectively absorb the transverse expansion of the pipeline, prevent stress concentration, leakage or damage caused by excessive expansion of the pipeline, the left and right ends of the corrugated pipe 101 are provided with first gaskets 102, the outer surfaces of the left and right ends of the corrugated pipe 101 are fixedly connected with first flange plates 103, when the electric boiler produces more high-temperature water vapor inside the pipeline, the flange connection will be subjected to greater thermal expansion stress, and long-term expansion stress concentration may cause cracks at the pipeline connection, which may cause leakage or pipeline rupture, at this time, the corrugated pipe 101 absorbs displacement by elastic stretching and contraction, at the same time, the electric telescopic rod 205 drives the piston 206 to move downward, which assists to slow down the pressure rise caused by thermal expansion, preventing the pipeline and the pipeline connection from being damaged due to excessive pressure inside the pipeline, the outer surfaces of the two first flange plates 103 are fixedly connected with three evenly distributed ear plates 104, the interiors of the left and right ear plates 104 are provided with screw rods 105, the outer surfaces of the left and right ends of the screw rods 105 are threadedly connected with movable bolts 106, the left and right ends of the screw rods 105 are threadedly connected with nuts 107, the cooperation of the nuts 107, the screw rods 105 and the movable bolts 106 can prevent the first connecting assembly 1 from being deformed and flattened due to severe impact during transportation, after installation is completed, the screw rods 105 need to be removed, the interior of the corrugated pipe 101 is provided with a flow guide cylinder 108, the gap between the left end of the flow guide cylinder and the corrugated pipe 101 is filled with welding, thereby the flow guide cylinder and the corrugated pipe 101 can be welded into a whole, the right end of the flow guide cylinder is not welded with the corrugated pipe 101, so that the corrugated pipe 101 has stretching and compression space, and the water vapor flows from the welded side to the side without welding inside the flow guide cylinder, the second connecting assembly 2 includes a pressure reducing pipe 201, the outer surface of the lower end of the pressure reducing pipe 201 is fixedly connected with a communication pipe 204, the interior bottom end of the communication pipe 204 is fixedly installed with an electric telescopic rod 205, the output end of the electric telescopic rod 205 is fixedly connected with a piston 206, the right end of the pressure reducing pipe 201 is provided with a second gasket 202, the left and right ends of the outer surface of the pressure reducing pipe 201 are fixedly connected with second flange plates 203, the left second flange plate 203 is connected with the right first flange plate 103 through a second connecting piece 6.

[0027] Referring to Figure 1 , Figure 3 and Figure 4As shown, the third connecting assembly 3 includes a first external connecting pipe 301, a third flange plate 302 is fixedly connected to the right end of the outer surface of the first external connecting pipe 301, the other end of the first external connecting pipe 301 is connected with the output end of the electric boiler, the third flange plate 302 is connected with the left first flange plate 103 through the first connecting piece 5, the fourth connecting assembly 4 includes a second external connecting pipe 401, a fourth flange plate 402 is fixedly connected to the left end of the outer surface of the second external connecting pipe 401, the other end of the second external connecting pipe 401 is connected with the input end of the heat exchange system, the fourth flange plate 402 is connected with the right second flange plate 203 through the third connecting piece 7, the first sealing gasket 102 arranged at the left and right ends of the corrugated pipe 101 abuts against the right end of the third flange plate 302 and the left end of the left second flange plate 203 respectively, and the second sealing gasket 202 arranged at the right end of the pressure reducing pipe 201 abuts against the left end of the fourth flange plate 402.

[0028] The working principle and use process of the utility model are as follows: specifically, one end of the first external connecting pipe 301 in the third connecting assembly 3 is connected with the output end of the electric boiler, the second external connecting pipe 401 in the fourth connecting assembly 4 is connected with the input end of the heat exchange system, then the left first flange plate 103 is connected with the third flange plate 302 through the first connecting piece 5, the right first flange plate 103 is connected with the left second flange plate 203 through the second connecting piece, and the right second flange plate 203 is connected with the fourth flange plate 402 through the third connecting piece 7, so that the installation of the connecting positions of various pipes is completed, the connection between various pipes is completed, and then the place needing to be transported heat energy can be transported heat energy through the electric boiler and the heat exchange system; when in use, if the water vapor in the pipe becomes more, the pipe will be expanded by heat, at this time, the corrugated pipe 101 can absorb displacement through elastic expansion, and the piston 206 is driven to move downward by the electric telescopic rod 205, so that the pressure rise caused by thermal expansion is assisted to slow down, and the pipe is prevented from being damaged due to excessive pressure in the pipe.

[0029] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the utility model; various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope required by the utility model is defined by the appended claims and their equivalents.

Claims

1. A peak-shaving electric boiler connection structure, characterized by: The utility model relates to a first connecting component (1), second connecting component (2), third connecting component (3) and fourth connecting component (4) are connected to each other, and the first connecting component (1) is connected to the second connecting component (2) through the third connecting component (3) and the fourth connecting component (4). The utility model relates to a first connecting component (1), second connecting component (2), third connecting component (3) and fourth connecting component (4) are connected to each other, and the first connecting component (1) is connected to the second connecting component (2) through the third connecting component (3) and the fourth connecting component (4). The utility model relates to a first connecting component (1), second connecting component (2), third connecting component (3) and fourth connecting component (4) are connected to each other, and the first connecting component (1) is connected to the second connecting component (2) through the third connecting component (3) and the fourth connecting component (4).

2. The peak-shaving electric boiler connection structure according to claim 1, characterized in that: The utility model relates to a first connecting component (1), second connecting component (2), third connecting component (3) and fourth connecting component (4) are connected to each other, and the first connecting component (1) is connected to the second connecting component (2) through the third connecting component (3) and the fourth connecting component (4).

3. The peak-shaving electric boiler connection structure according to claim 1, characterized in that: The utility model relates to a first connecting component (1), second connecting component (2), third connecting component (3) and fourth connecting component (4) are connected to each other, and the first connecting component (1) is connected to the second connecting component (2) through the third connecting component (3) and the fourth connecting component (4).

4. The peak-shaving electric boiler connection structure according to claim 1, characterized in that: The utility model relates to a first connecting component (1), second connecting component (2), third connecting component (3) and fourth connecting component (4) are connected to each other, and the first connecting component (1) is connected to the second connecting component (2) through the third connecting component (3) and the fourth connecting component (4).

5. The peak-shaving electric boiler connection structure according to claim 1, characterized in that: The utility model relates to a first connecting component (1), second connecting component (2), third connecting component (3) and fourth connecting component (4) are connected to each other, and the first connecting component (1) is connected to the second connecting component (2) through the third connecting component (3) and the fourth connecting component (4).

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