Exhaust steam heat recovery device for steam turbine of thermal power plant

Abstract

The utility model discloses a thermal power plant steam turbine exhaust steam heat recovery device in the technical field of steam turbines, which comprises a bottom frame, a top plate fixedly arranged on the upper side of the bottom frame, a guide pipe fixedly arranged on the inner side of the top plate, two ends of the guide pipe penetrating through the top plate and extending to the upper side, and a connecting pipe fixedly arranged at one end of the guide pipe on the upper side of the top plate. A mounting frame is movably arranged on the upper side of the bottom frame, a water tank is arranged on the upper side of the mounting frame, a hydraulic cylinder is arranged on the upper side of the mounting frame, one end of the hydraulic cylinder is connected to the mounting frame, the other end of the hydraulic cylinder is connected to the water tank, an insertion block is fixedly arranged on the upper side of the mounting frame, a positioning block is fixedly arranged on the upper side of the bottom frame, and a positioning groove in butt joint with the positioning block is formed in the outer side of the positioning block. By means of the simple installation structure, the guide pipe and the water tank can be conveniently detached, so that water scales on the guide pipe and the water tank can be conveniently cleaned, operation of workers is facilitated, the heat recovery effect is guaranteed, the practical effect is good, and the water heater is worthy of being popularized and used in the existing market.

Description

TECHNICAL FIELD

[0001] The utility model relates to steam turbine technical field more specifically, relate to a steam turbine exhaust heat recovery device of thermal power plant. BACKGROUND

[0002] In thermal power plant, after steam turbine work, exhaust heat is all discharged to air condenser and is condensed and cooled, causes a lot of heat waste, and also causes the great influence to environment, therefore will use to heat recovery device to the heat of emission carries out recovery.

[0003] The existing heat recovery device mainly passes through the heat through pipeline and carries out transmission, and the pipeline is arranged in the water tank, and the water in the water tank is heated through the heat transfer principle, realizes the recovery of heat, with the growth of use time, a layer of scale is formed on the outside of the pipeline and the inside of the water tank, and the scale can affect the heat transfer of the pipeline, lead to the insufficient heat recovery, and the existing recovery device is inconvenient to disassemble, increase the cleaning difficulty of the pipeline and the water tank, and there are disadvantages in use.

[0004] In view of this, we propose a steam turbine exhaust heat recovery device of thermal power plant. UTILITY MODEL CONTENTS

[0005] 1. The technical problem to be solved

[0006] The utility model aims at providing a steam turbine exhaust heat recovery device of thermal power plant to solve the problem of the existing heat recovery device inconvenient to clean the pipeline and the water tank in the background art.

[0007] 2. Technical scheme

[0008] A steam turbine exhaust heat recovery device of thermal power plant, including the bottom frame, the bottom frame upside is fixedly arranged with the top plate, the top plate inboard is fixedly arranged with the guide pipe, the guide pipe both ends all are through top plate and extend to upside, and the guide pipe one end is located top plate upside portion and is fixedly arranged with the connecting pipe, the bottom frame upside is movably arranged with the mounting bracket, the mounting bracket upside is provided with the water tank, and the mounting bracket upside is provided with the hydraulic cylinder, the hydraulic cylinder one end is connected to the mounting bracket, and the hydraulic cylinder other end is connected to the water tank, the mounting bracket upside is fixedly arranged with the plug block, the bottom frame upside is fixedly arranged with the locating block, the locating block outside is opened with the locating slot of butt joint locating block.

[0009] Preferably, the top plate upside is fixedly arranged with the filter chamber, the filter chamber inboard is provided with the filter plate, and the guide pipe other end is fixedly connected to the filter chamber.

[0010] Preferably, the water tank one side is fixedly arranged with the water inlet pipe, and the water tank other side is fixedly arranged with the drain pipe.

[0011] Preferably, the top plate lower side is fixedly provided with a top cover, the lower side of the top cover is fixedly provided with a sealing gasket, and the upper side of the water tank is provided with a sealing groove for the sealing gasket.

[0012] Preferably, the mounting frame upper side is fixedly provided with a plurality of limiting frames, the inner side of each of the plurality of limiting frames is movably inserted with a support block, the support block movably penetrates the limiting frame and extends to the outer side, and the outer side of the support block is fixedly connected to the water tank outside the limiting frame.

[0013] Preferably, the inner side of the plug block is provided with an inner groove, the inner side of the inner groove is movably provided with a positioning rod, the positioning rod movably penetrates the inner groove and extends to the outer side, the inner side of the positioning groove is provided with a positioning hole for the positioning rod, and the inner side of the inner groove is provided with a spring, one end of the spring is connected to the inner groove, and the other end of the spring is connected to the positioning rod.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The utility model discloses a bottom frame, a top plate, a water tank, a hydraulic cylinder, a top cover, a sealing gasket, a sealing groove and other structures are arranged, and the mutual cooperation of various structures makes it convenient to split the conduit and the water tank, thereby facilitating the cleaning of the water scale on the conduit and the water tank, facilitating the operation of the staff, and guaranteeing the heat recovery effect.

[0017] 2. The utility model discloses a plug block, a positioning block, a spring, a positioning rod, a positioning hole and other structures are arranged, and the mutual cooperation of various structures makes it convenient to position the mounting frame and the water tank, thereby guaranteeing the overall use stability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a side section structure schematic view of the utility model;

[0020] Figure 3 It is a split effect schematic view of the utility model;

[0021] Figure 4 It is a conduit installation effect schematic view of the utility model;

[0022] Figure 5 It is a whole structure schematic view of the utility model; Figure 2 It is an enlarged schematic view of the structure at A of the utility model;

[0023] Label explanation: 1 bottom frame, 2 top plate, 3 conduit, 4 connecting pipe, 5 filter chamber, 6 mounting bracket, 7 water tank, 8 water inlet pipe, 9 drain pipe, 10 hydraulic cylinder, 11 top cover, 12 sealing gasket, 13 sealing groove, 14 plug block, 15 positioning block, 16 positioning groove, 17 limiting frame, 18 supporting block, 19 inner groove, 20 spring, 21 positioning rod, 22 positioning hole. DETAILED DESCRIPTION

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate 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, and therefore cannot be understood as limiting the present application.

[0025] In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0026] In the description of the present application, it should be noted that, unless otherwise specifically provided and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] Please refer to Figures 1-5 , the present application provides a technical scheme:

[0028] The utility model provides a steam turbine exhaust heat recovery device of thermal power plant, including the bottom frame 1, the top plate 2 is fixedly arranged on the upper side of bottom frame 1, the inner side of top plate 2 is fixedly arranged with the guide pipe 3, both ends of guide pipe 3 all extend to the upper side and are penetrated through top plate 2, and the one end of guide pipe 3 is located on the upper side portion of top plate 2 and is fixedly arranged with the connecting pipe 4, the mounting bracket 6 is movably arranged on the upper side of bottom frame 1, the water tank 7 is arranged on the upper side of mounting bracket 6, and the hydraulic cylinder 10 is arranged on the upper side of mounting bracket 6, one end of hydraulic cylinder 10 is connected to mounting bracket 6, and the other end of hydraulic cylinder 10 is connected to water tank 7, the plug block 14 is fixedly arranged on the upper side of mounting bracket 6, the positioning block 15 is fixedly arranged on the upper side of bottom frame 1, the positioning groove 16 that butt joints positioning block 15 is formed in the outer side of positioning block 15, guide pipe 3 is spiral, can increase the residence time of gas in guide pipe 3, to make the recovery of heat more fully.

[0029] Specifically, the filter chamber 5 is fixedly arranged on the upper side of the top plate 2, the filter plate is arranged in the inner side of the filter chamber 5, the other end of the guide pipe 3 is fixedly connected to the filter chamber 5, the gas is discharged from the filter chamber after being filtered by the filter plate, harmful substances can be removed to avoid environmental pollution.

[0030] Further, the water inlet pipe 8 is fixedly arranged on one side of the water tank 7, and the drain pipe 9 is fixedly arranged on the other side of the water tank 7, the valve is arranged on the water inlet pipe 8 and the drain pipe 9, the water can be conveniently introduced into the water tank 7 by opening the valve, and the heated water can be conveniently discharged.

[0031] It is worth mentioning that the top cover 11 is fixedly arranged on the lower side of the top plate 2, the sealing gasket 12 is fixedly arranged on the lower side of the top cover 11, the sealing groove 13 that butt joints the sealing gasket 12 is formed in the upper side of the water tank 7, the sealing gasket 12 is movably inserted into the sealing groove 13, so that the top cover 11 and the water tank 7 can be separated conveniently, the connection sealing property of the top cover 11 and the water tank 7 can be improved, the sealing effect can be improved, and the loss of heat can be avoided.

[0032] It is worth noting that the mounting bracket 6 is fixedly arranged on the upper side of the plurality of limiting frames 17, the supporting block 18 is movably inserted into the inner side of the plurality of limiting frames 17, the supporting block 18 is movably penetrated through the limiting frame 17 and extends to the outer side, and the supporting block 18 is fixedly connected to the water tank 7 on the outer side of the limiting frame 17, when the water tank 7 is driven to move up and down by the hydraulic cylinder 10, the water tank 7 can drive the supporting block 18 to limit sliding in the limiting frame 17, so that the use stability of the water tank 7 can be ensured.

[0033] In addition, the inner side of the plug 14 is provided with an inner groove 19, the inner side of the inner groove 19 is movably provided with a positioning rod 21, the positioning rod 21 movably penetrates the inner groove 19 and extends to the outer side, the inner side of the positioning groove 16 is provided with a positioning hole 22 for abutting the positioning rod 21, and the inner side of the inner groove 19 is provided with a spring 20, one end of the spring 20 is connected to the inner groove 19, and the other end of the spring 20 is connected to the positioning rod 21. The spring 20 does not deform in the initial state, when the plug 14 is inserted into the inner side of the positioning groove 16, the positioning rod 21 extrudes the inner side of the positioning groove 16, so that the positioning rod 21 moves to the inner side of the inner groove 19 and extrudes the spring 20, so that the spring 20 deforms. When the positioning rod 21 moves and just abuts the positioning hole 22, at this time, the elastic potential energy of the spring 20 is released, which can drive the positioning rod 21 to move quickly and insert into the positioning hole 22, thereby improving the convenience and stability of fixing the plug 14, and ensuring the use stability of the mounting frame 6 and the water tank 7.

[0034] Working principle: first, connect the connecting pipe 4 with the steam turbine, then supply water to the water tank 7 through the water inlet pipe 8, the exhaust gas enters the conduit 3 through the connecting pipe 4, at this time the heat in the conduit 3 can heat the water in the water tank 7, the heated water is discharged through the drain pipe 9 and can be used for other purposes, when it is necessary to clean the conduit 3 and the water tank 7, the hydraulic cylinder 10 is opened to drive the water tank 7 to move downward, so that the conduit 3 is exposed, then the positioning rod 21 is pushed into the inner groove 19, then the plug 14 is removed from the positioning groove 16, finally the mounting frame 6 is moved, the mounting frame 6 is removed from the inner side of the bottom frame 1, then the conduit 3 and the water tank 7 can be quickly cleaned.

[0035] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, the above examples and descriptions in the specification are only preferred examples of the present application, and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A heat recovery device for exhaust steam from a thermal power plant turbine, comprising a base frame (1), characterized in that: A top plate (2) is fixedly installed on the upper side of the bottom frame (1). A conduit (3) is fixedly installed on the inner side of the top plate (2). Both ends of the conduit (3) penetrate the top plate (2) and extend to the upper side. A connecting pipe (4) is fixedly installed on the upper part of the top plate (2) at one end of the conduit (3). A mounting frame (6) is movably installed on the upper side of the bottom frame (1). A water tank (7) is installed on the upper side of the mounting frame (6). A hydraulic cylinder (10) is installed on the upper side of the mounting frame (6). One end of the hydraulic cylinder (10) is connected to the mounting frame (6), and the other end of the hydraulic cylinder (10) is connected to the water tank (7). An insert block (14) is fixedly installed on the upper side of the mounting frame (6). A positioning block (15) is fixedly installed on the upper side of the bottom frame (1). A positioning groove (16) for docking with the positioning block (15) is opened on the outer side of the positioning block (15).

2. The heat recovery device for exhaust steam from a thermal power plant turbine according to claim 1, characterized in that: A filter chamber (5) is fixedly installed on the upper side of the top plate (2), and a filter plate is installed inside the filter chamber (5). The other end of the conduit (3) is fixedly connected to the filter chamber (5).

3. The heat recovery device for exhaust steam from a thermal power plant turbine according to claim 1, characterized in that: A water inlet pipe (8) is fixedly installed on one side of the water tank (7), and a drain pipe (9) is fixedly installed on the other side of the water tank (7).

4. The heat recovery device for exhaust steam from a thermal power plant turbine according to claim 1, characterized in that: A top cover (11) is fixedly installed on the lower side of the top plate (2), and a sealing gasket (12) is fixedly installed on the lower side of the top cover (11). A sealing groove (13) for connecting the sealing gasket (12) is opened on the upper side of the water tank (7).

5. The heat recovery device for exhaust steam from a thermal power plant turbine according to claim 1, characterized in that: Multiple sets of limiting frames (17) are fixedly installed on the upper side of the mounting bracket (6). Support blocks (18) are movably inserted into the inner side of each set of limiting frames (17). The support blocks (18) movably pass through the limiting frames (17) and extend to the outside. The outer part of the support blocks (18) located outside the limiting frames (17) is fixedly connected to the water tank (7).

6. The heat recovery device for exhaust steam from a thermal power plant turbine according to claim 1, characterized in that: The insert (14) has an inner groove (19) through it. A positioning rod (21) is movably arranged inside the inner groove (19). The positioning rod (21) movably passes through the inner groove (19) and extends to the outside. A positioning hole (22) for docking the positioning rod (21) is through it inside the positioning groove (16). A spring (20) is arranged inside the inner groove (19). One end of the spring (20) is connected to the inner groove (19), and the other end of the spring (20) is connected to the positioning rod (21).

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