Low-load heat supply device of thermal power generating unit

Abstract

The utility model discloses a thermal power generating unit low-load heat supply device, which relates to the technical field of heat supply devices, and comprises two heat supply pipelines, the opposite sides of two flanges are contacted, the outer surfaces of the two heat supply pipelines are both connected with two arc-shaped clamping seats, the inner side of a support block is provided with a clamping groove, and the two arc-shaped clamping seats are respectively connected with two arc-shaped clamping seats. The heat supply pipeline fixing device is reasonable in design structure, the heat supply pipeline fixing device can wrap the heat supply pipeline through the arc-shaped clamping seat by means of matching among the arc-shaped clamping seat, the supporting block and the pull rod, a stress point is formed for the heat supply pipeline, and the heat supply pipeline fixing device can be used for fixing the heat supply pipeline. The clamping grooves in the arc-shaped clamping bases and the supporting blocks provide placement spaces for the pull rods, the arc-shaped clamping bases are pulled together through the pull rods, the stability of the connecting position of the two heat supply pipelines is improved, and the risk of loosening of the flange connecting position is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heat supply device, concretely is a low load heat supply device of thermal power generating unit. BACKGROUND

[0002] The heat supply device of thermal power generating unit refers to the equipment and heat supply system that heat energy such as steam or hot water is delivered to user in the process of thermal power generation, and the heat supply device of thermal power generating unit mainly includes temperature and pressure reducing device, temperature and pressure reducing device is one of important equipment in the heat supply system of thermal power generating unit, its function is to adjust to the temperature and pressure range suitable for user use through the mode such as water spray temperature reduction, throttling pressure reduction to high-temperature high-pressure steam, heat exchanger, heat exchanger is used to realize the transfer and exchange of heat in the heat supply of thermal power generating unit, heat supply pipeline, heat supply pipeline is the important passage that heat energy is delivered to user from thermal power generating unit, and the outside of heat supply pipeline usually uses heat preservation material to preserve heat to reduce the loss of heat, in some large heat supply systems, heat supply pipeline can cross long distance, and corresponding measures need to be taken to guarantee the stability and safety of heat supply, heat storage device, heat storage device can play the role of adjusting supply and demand balance, improving energy utilization rate in the heat supply system of thermal power generating unit, and the heat supply device of thermal power generating unit can also include some auxiliary equipment, such as heat pump, valve, instrument etc., and these equipment jointly constitute a complete heat supply system of thermal power generating unit, to ensure the stable supply and effective utilization of heat energy.

[0003] Heat supply pipeline mostly uses flange connection when connecting, since hot water flowing inside heat supply pipeline needs power delivery, so hot water has strong pressure as power, and compared with heat supply pipeline itself, flange connection position is relatively weak, under the action of strong hot water pressure, flange connection position can be caused to bear greater pressure load, and under the impetus of hot water pressure, two flange connection positions can be caused to appear loose problem, causing hot water to leak from inside heat supply pipeline to outside, for this purpose, the low load heat supply device of thermal power generating unit is provided to solve the above problems. UTILITY MODEL CONTENTS

[0004] I) technical problem solved

[0005] The utility model provides a low load heat supply device of thermal power generating unit, and through the cooperation between arc-shaped clamp holder, supporting block and pull rod, the problem that flange connection position can be caused to bear greater pressure load under the action of strong hot water pressure, and two flange connection positions can be caused to appear loose problem under the impetus of hot water pressure is solved.

[0006] II) technical scheme

[0007] To achieve the above object, the utility model provides the following technical scheme: a low load heat supply device of thermal power generating unit, including heat supply pipeline, the quantity of heat supply pipeline is two, and two heat supply pipelines are symmetrical, the opposite end of two heat supply pipelines is connected with flange, and the opposite side of two flanges is contacted;

[0008] The outer surface of two heat supply pipelines is connected with two arc clamping bases, and two arc clamping bases are symmetrical, the outer surface of arc clamping base is connected with support block, the inner side of support block is provided with clamping groove, the inner wall of clamping groove is contacted with pull rod, and the both ends of pull rod are connected with threaded rod, and one end of threaded rod outside support block is connected with lock nut.

[0009] Further, the side of the support block located on the lock nut is connected with a square block, the side of the square block is in contact with the side of the lock nut, the outside of the square block is sleeved with a positioning plate, and the positioning plate has a bending function, and the outer surface of the positioning plate is in contact with the outer surface of the lock nut.

[0010] Further, the inner wall of the arc clamping base is connected with a plurality of arc-shaped reverse teeth, and the plurality of arc-shaped reverse teeth are arranged in a circular array, and the outer surface of the arc-shaped reverse tooth is in contact with the inner wall of the heat supply pipeline.

[0011] Further, the inner side of one of the flanges is provided with a plurality of positioning grooves, and the plurality of positioning grooves are arranged in a circular array.

[0012] Further, the side of the other flange is connected with a plurality of positioning pins, and the plurality of positioning pins are arranged in a circular array, and the outer surface of the positioning pin is in contact with the inner wall of the positioning groove.

[0013] Further, the inner side of the two flanges is provided with a sealing groove, and the sealing groove is provided with a sealing pad, and the sealing pad is made of rubber material.

[0014] Three) beneficial effects:

[0015] Compared with the prior art, the low load heat supply device of thermal power generating unit has the following beneficial effects:

[0016] I. The low load heat supply device of thermal power generating unit, through the cooperation between the arc clamping base, the support block and the pull rod, the arc clamping base is wrapped outside the heat supply pipeline, a stress point is formed for the heat supply pipeline, the clamping groove in the support block provides a space for the pull rod, the arc clamping base is pulled together through the pull rod, a pulling force is formed outside the heat supply pipeline, the stability of the connection between the two heat supply pipelines is improved, and the risk of loosening of the flange connection is reduced.

[0017] II. The low-load heat supply device of the thermal power generating unit is matched among the four blocks, the positioning plate and the locking nut, the four blocks provide support force for the positioning plate to prevent the support plate from rotating and maintain the stability of the positioning plate, after the pull rod is fastened by the locking nut, the curved positioning plate is contacted with the locking nut to provide resistance for the locking nut and maintain the stability of the locking nut, and the self-rotation of the locking nut is prevented to lose the support for the threaded rod. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual proportions.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0020] Figure 2 It is a schematic diagram of the arc-shaped inverted tooth structure of the present application;

[0021] Figure 3 It is a schematic diagram of the clamping groove structure of the present application;

[0022] Figure 4 It is a schematic diagram of the overall structure of the pull rod of the present application;

[0023] Figure 5 It is a schematic diagram of the explosion structure of the heat supply pipeline, flange and sealing gasket of the present application.

[0024] In the drawings: 1, heat supply pipeline; 2, flange; 3, arc-shaped clamp seat; 4, support block; 5, clamping groove; 6, pull rod; 7, locking nut; 8, four blocks; 9, positioning plate; 10, arc-shaped inverted tooth; 11, positioning groove; 12, positioning pin; 13, sealing groove; 14, sealing gasket; 15, threaded rod. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] As Figures 1-5As shown, the utility model provides a technical scheme: a low load heat supply device of thermal power generating unit, including heat supply pipeline 1, the quantity of heat supply pipeline 1 is two, and two heat supply pipelines 1 are symmetrical, and the opposite end of two heat supply pipelines 1 is connected with flange 2, and the opposite side of two flanges 2 is contacted, and the butt joint of heat supply pipeline 1 is provided with support force through flange 2, the stability of heat supply pipeline 1 is kept, and two flanges 2 are fixed through locking bolt.

[0027] The outer surface of two heat supply pipelines 1 is connected with two arc clamping bases 3, and two arc clamping bases 3 are symmetrical, two arc clamping bases 3 are connected together through locking bolt, two arc clamping bases 3 form clamping to heat supply pipeline 1, two arc clamping bases 3 have stability, arc clamping base 3 provides support force for support block 4, and the stability of support block 4 is kept.

[0028] The outer surface of arc clamping base 3 is connected with support block 4, the inner side of support block 4 is provided with clamping groove 5, the inner wall of clamping groove 5 is contacted with pull rod 6, clamping groove 5 is rectangular appearance, the support force of pull rod 6 can be provided for rectangular appearance clamping groove 5, the stability of locking nut 7 is kept when rotating, the two ends of heat supply pipeline 1 are pulled together through pull rod 6, support force is provided outside heat supply pipeline 1, and the stability of the connecting place of two heat supply pipelines 1 is kept.

[0029] The two ends of pull rod 6 are connected with threaded rod 15, one end of threaded rod 15 outside support block 4 is connected with locking nut 7 in screw thread, locking nut 7 is fixed to threaded rod 15, the moving position of pull rod 6 is limited, and the stability of pull rod 6 is kept.

[0030] The side of support block 4 located locking nut 7 is connected with four square blocks 8, the side of four square blocks 8 is contacted with the side of locking nut 7, the outside of four square blocks 8 is sleeved with positioning plate 9, and positioning plate 9 has the function of bending, the outer surface of positioning plate 9 is contacted with the outer surface of locking nut 7, support force is provided for positioning plate 9 through four square blocks 8, prevent support plate from rotating, positioning plate 9 has the function of bending, after locking nut 7 is fastened well pull rod 6, resistance is provided for locking nut 7 by bending positioning plate 9 and locking nut 7 contact, the stability of locking nut 7 is kept, and locking nut 7 is prevented from rotating.

[0031] The inner wall of arc clamping base 3 is connected with multiple arc reverse teeth 10, and multiple arc reverse teeth 10 are arranged in circular arc shape, the outer surface of arc reverse tooth 10 is contacted with the inner wall of heat supply pipeline 1, the friction between arc clamping base 3 and heat supply pipeline 1 is increased through arc reverse tooth 10, and the stability of arc clamping base 3 is improved.

[0032] The inner side of one flange 2 is provided with a plurality of positioning grooves 11, and the plurality of positioning grooves 11 are circular arrays, the positioning grooves 11 provide accommodation space for the positioning pins 12, and the positioning pins 12 are wrapped inside, and the other flange 2 is connected with a plurality of positioning pins 12, and the plurality of positioning pins 12 are circular arrays, the outer surface of the positioning pin 12 is in contact with the inner wall of the positioning groove 11, the positioning groove 11 provides support for the positioning pin 12, maintains the stability of the two flanges 2, and prevents the two flanges 2 from being dislocated due to shaking under pressure.

[0033] The inner side of the two flanges 2 is provided with a sealing groove 13, and the sealing pad 14 is installed in the sealing groove 13, and the sealing pad 14 is made of rubber material, and when the two flanges 2 are connected, the sealing pad 14 is extruded to fill the gap between the two flanges 2, thereby improving the sealing performance between the two flanges 2, and when the sealing pad 14 is extruded, the sealing pad 14 is wrapped inside through the sealing groove 13 to prevent the sealing pad 14 from deforming excessively and losing the sealing effect, thereby maintaining the stability of the sealing pad 14.

[0034] Working principle: in use, firstly, the heat supply pipeline 1 is moved to butt joint the two flanges 2 together, the positioning pins 12 are aligned with the positioning grooves 11, then the two flanges 2 are tightly connected together by using the locking bolts, the two arc-shaped clamping seats 3 are wrapped outside the heat supply pipeline 1, the two arc-shaped clamping seats 3 are connected together by using the locking bolts, the locking bolts are not fastened in advance, so that the two arc-shaped clamping seats 3 can be moved, then the pull rod 6 is inserted into the clamping groove 5, the locking nuts 7 are tightened, so that the pull rod 6 is in close contact with the clamping groove 5, the locking bolts on the arc-shaped clamping seat 3 are tightened, the arc-shaped clamping seat 3 is fixed, the movement of the arc-shaped clamping seat 3 is limited, finally, the positioning plate 9 is bent by external force, so that the positioning plate 9 is in contact with the locking nut 7, and the movement of the locking nut 7 is limited.

[0035] In the description of the present application, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0036] The above is only a specific embodiment of the present application, and cannot limit the scope of the present application, so the replacement of equivalent components or equivalent changes and modifications made within the scope of the present application are still within the scope of the present application.

Claims

1. A low-load heating device for thermal power units, comprising a heating pipeline (1), characterized in that: The number of heating pipes (1) is two, and the two heating pipes (1) are symmetrical. The opposite ends of the two heating pipes (1) are connected to flanges (2), and the opposite sides of the two flanges (2) are in contact. Two arc-shaped clamps (3) are connected to the outer surfaces of the two heating pipes (1), and the two arc-shaped clamps (3) are symmetrical. A support block (4) is connected to the outer surface of the arc-shaped clamp (3). A slot (5) is opened on the inner side of the support block (4). A pull rod (6) is in contact with the inner wall of the slot (5). Both ends of the pull rod (6) are connected to threaded rods (15). A locking nut (7) is threaded to one end of the threaded rod (15) located outside the support block (4).

2. The low-load heating device for thermal power units according to claim 1, characterized in that: The support block (4) is connected to a square block (8) on one side of the locking nut (7). One side of the square block (8) is in contact with one side of the locking nut (7). A positioning plate (9) is sleeved on the outside of the square block (8), and the positioning plate (9) has a bending function. The outer surface of the positioning plate (9) is in contact with the outer surface of the locking nut (7).

3. The low-load heating device for thermal power units according to claim 1, characterized in that: The inner wall of the arc-shaped clamp (3) is connected with a plurality of arc-shaped inverted teeth (10), and the plurality of arc-shaped inverted teeth (10) are arranged in an arc shape. The outer surface of the arc-shaped inverted teeth (10) is in contact with the inner wall of the heating pipe (1).

4. A low-load heating device for thermal power units according to claim 1, characterized in that: One of the flanges (2) has multiple positioning grooves (11) on its inner side, and the multiple positioning grooves (11) are arranged in a circular array.

5. A low-load heating device for thermal power units according to claim 4, characterized in that: Another flange (2) has multiple locating pins (12) connected to one side, and the multiple locating pins (12) are arranged in a circular array, with the outer surface of the locating pins (12) in contact with the inner wall of the locating groove (11).

6. A low-load heating device for thermal power units according to claim 1, characterized in that: Both flanges (2) have a sealing groove (13) on their inner sides. A sealing gasket (14) is installed inside the sealing groove (13), and the sealing gasket (14) is made of rubber.

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