Steam decompression heat energy recovery equipment

Abstract

The utility model discloses steam pressure reduction heat energy recovery equipment applied to the field of heat energy recovery, which comprises a mounting substrate, a pressure reducing valve is mounted on one side of the upper surface of the mounting substrate, a cooling sleeve shell is fixedly connected to the center of the upper surface of the mounting substrate, and a plate heat exchanger is mounted on the other side of the upper surface of the mounting substrate. The pressure reducing valve can be used for reducing pressure of steam, and the heat exchange water pipe in the cooling assembly can be used for carrying out first heat exchange on the steam which is guided in by the air inlet guide pipe and subjected to pressure reduction. Water flow in the heat exchange water pipe is guided into a heat flow pipe of the plate heat exchanger through a first circulating pump, cooled steam is guided into the plate heat exchanger through an air outlet guide pipe, secondary heat exchange is carried out through heat exchange plates, heat flow guided into the heat flow pipe of the plate heat exchanger exchanges heat with cold flow, and steam cooling energy is also used for heat exchange of the plate heat exchanger.

Description

Technical Field

[0001] The utility model relates to the technical field of heat energy recovery, in particular to a steam decompression heat energy recovery device. Background Art

[0002] Steam is widely used in many different application industries. In steam recovery energy-saving applications, steam waste heat recovery is a technology that uses the waste heat of steam generated in industrial processes to recover energy.

[0003] Since steam at high temperature and high pressure is easy to transport, and the commonly used plate heat exchanger is not suitable for direct heat exchange with high temperature and high pressure steam, the steam often needs to be decompressed and cooled before waste heat recovery, and conventional cooling operations will waste part of the steam's thermal energy. Therefore, a steam decompression heat recovery device is needed to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide a steam decompression heat energy recovery device to solve the problem raised in the above background technology: before waste heat recovery, the steam is often required to be decompressed and cooled before heat recovery, while conventional cooling operations will waste part of the steam heat energy.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steam pressure-reducing heat energy recovery device, comprising a mounting base, a pressure-reducing valve is mounted on one side of the upper surface of the mounting base, a cooling sleeve is fixedly connected to the center of the upper surface of the mounting base, a plate heat exchanger is mounted on the other side of the upper surface of the mounting base, a cooling component is mounted inside the cooling sleeve, the output end of the pressure-reducing valve is connected to the cooling sleeve flange through an air inlet duct, the cooling sleeve is connected to the plate heat exchanger flange through an air outlet duct, the air outlet end of the air outlet duct is directly opposite to the position of the heat exchange plate inside the plate heat exchanger, a first circulating pump is mounted near the center of the upper surface of the mounting base near the plate heat exchanger, and the cooling component is connected to the plate heat exchanger through the first circulating pump. The heat exchanger is connected, the output end of the first circulation pump is flange-connected to the hot flow inlet end of the plate heat exchanger, the upper surface of the mounting base plate is connected with a circulation component near the plate heat exchanger, and the circulation component is flange-connected to the cooling component; the purpose of such arrangement is: the steam can be decompressed by the pressure reducing valve, the decompressed steam introduced by the air inlet duct can be subjected to the first heat exchange by the heat exchange water pipe in the cooling component, the water flow in the heat exchange water pipe is introduced into the hot flow pipe of the plate heat exchanger through the first circulation pump, the cooled steam is introduced into the inside of the plate heat exchanger through the air outlet duct, the second heat exchange is carried out through the heat exchange plates, the hot flow introduced into the hot flow pipe of the plate heat exchanger is heat-exchanged with the cold flow, and the energy of steam cooling is also used for heat exchange of the plate heat exchanger.

[0006] Preferably, the cooling component comprises a plurality of heat exchange water pipes, the ends of two adjacent heat exchange water pipes are connected via a guide pipe flange, and one end of the heat exchange water pipe close to the air inlet duct is flange-connected to a liquid inlet duct.

[0007] Preferably, one end of the hot water exchange pipe close to the first circulation pump is flange-connected with a liquid outlet conduit, and the liquid outlet conduit is flange-connected to the liquid inlet end of the first circulation pump.

[0008] Preferably, the circulation component comprises a circulation water tank, and the hot liquid outlet end of the plate heat exchanger is flange-connected to the circulation water tank.

[0009] Preferably, a second circulating pump is installed on the upper surface of the mounting base plate near the circulating water tank, and a liquid inlet end of the second circulating pump is connected to a flange of the circulating water tank.

[0010] Preferably, the liquid outlet end of the second circulation pump is flange-connected to the liquid inlet conduit via a circulation conduit.

[0011] Technical effects and advantages of the utility model:

[0012] (1) The device can reduce the pressure of steam by means of a pressure reducing valve, and can perform the first heat exchange on the reduced-pressure steam introduced into the air inlet duct by means of a heat exchange water pipe in a cooling component. The water flow in the heat exchange water pipe is introduced into the heat flow pipe of the plate heat exchanger through a first circulation pump, and the reduced-temperature steam is introduced into the interior of the plate heat exchanger through the air outlet duct, and performs the second heat exchange through the heat exchange plate. The hot flow introduced into the heat flow pipe of the plate heat exchanger exchanges heat with the cold flow, and the energy of steam cooling is also used for heat exchange in the plate heat exchanger, thereby solving the problem that the steam needs to be reduced in pressure and cooled before heat recovery, and the heat energy is recovered, while the conventional cooling operation will waste part of the heat energy of the steam;

[0013] (2) The water flow after heat exchange is introduced into the liquid inlet conduit through the provided circulating water tank, the second circulating pump and the circulating conduit, thereby repeating the heat exchange cycle and saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the cooling component in the utility model;

[0016] Figure 3 It is a schematic diagram of the connection structure between the cooling jacket and the plate heat exchanger in the utility model.

[0017] In the figure: 1. Installation base plate; 2. Pressure reducing valve; 3. Cooling shell; 4. Plate heat exchanger; 5. Cooling assembly; 501. Water exchange pipe; 502. Flow guide pipe; 503. Liquid inlet duct; 504. Liquid outlet duct; 6. Air inlet duct; 7. First circulation pump; 8. Air outlet duct; 9. Circulation assembly; 901. Circulating water tank; 902. Second circulation pump; 903. Circulation duct. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides Figure 1-3 A steam pressure reducing heat energy recovery device shown in the figure comprises a mounting base plate 1, a pressure reducing valve 2 is mounted on one side of the upper surface of the mounting base plate 1, a cooling jacket 3 is fixedly connected at the center of the upper surface of the mounting base plate 1, a plate heat exchanger 4 is mounted on the other side of the upper surface of the mounting base plate 1, a cooling component 5 is mounted inside the cooling jacket 3, an output end of the pressure reducing valve 2 is flange-connected to the cooling jacket 3 through an air inlet duct 6, the cooling jacket 3 is flange-connected to the plate heat exchanger 4 through an air outlet duct 8, an air outlet end of the air outlet duct 8 is directly opposite to the position of the heat exchange plate inside the plate heat exchanger 4, a first circulation pump 7 is mounted at the center of the upper surface of the mounting base plate 1 near the plate heat exchanger 4, the cooling component 5 is connected to the plate heat exchanger 4 through the first circulation pump 7, the output end of the first circulation pump 7 is flange-connected to the hot fluid inlet end of the plate heat exchanger 4, a circulation component 9 is connected to the upper surface of the mounting base plate 1 near the plate heat exchanger 4, and the circulation component 9 is flange-connected to the cooling component 5;

[0020] like Figure 1-3 A steam decompression heat energy recovery device is shown, the cooling component 5 includes a plurality of heat exchange water pipes 501, the ends of two adjacent heat exchange water pipes 501 are flange-connected via a guide pipe 502, one end of the heat exchange water pipe 501 near the air inlet duct 6 is flange-connected with a liquid inlet duct 503, one end of the heat exchange water pipe 501 near the first circulation pump 7 is flange-connected with a liquid outlet duct 504, the liquid outlet duct 504 is flange-connected to the liquid inlet end of the first circulation pump 7, the circulation component 9 includes a circulation water tank 901, the hot fluid outlet end of the plate heat exchanger 4 is flange-connected to the circulation water tank 901, a second circulation pump 902 is installed on the upper surface of the mounting base plate 1 near the circulation water tank 901, the liquid inlet end of the second circulation pump 902 is flange-connected to the circulation water tank 901, and the liquid outlet end of the second circulation pump 902 is flange-connected to the liquid inlet duct 503 through the circulation duct 903.

[0021] The working principle of the utility model is as follows: the steam can be decompressed by the pressure reducing valve 2, the decompressed steam introduced by the air inlet duct 6 can be subjected to the first heat exchange by the heat exchange water pipe 501 in the cooling component 5, the water flow in the heat exchange water pipe 501 is introduced into the heat flow pipe of the plate heat exchanger 4 through the first circulation pump 7, the cooled steam is introduced into the inside of the plate heat exchanger 4 through the air outlet duct 8, the second heat exchange is carried out through the heat exchange plates, the hot flow introduced into the heat flow pipe of the plate heat exchanger 4 is heat exchanged with the cold flow, the energy of steam cooling is also used for heat exchange of the plate heat exchanger 4, after the heat exchange of the hot flow is completed, it is introduced into the liquid inlet duct 503 through the circulating water tank 901, the second circulating pump 902 and the circulating duct 903, so as to repeat the circulation heat exchange and save water resources.

[0022] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The standard parts used in the utility model can all be purchased from the market, and the special-shaped parts can all be customized according to the description and the drawings.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steam decompression heat recovery device, comprising a mounting base (1), characterized in that: A pressure reducing valve (2) is installed on one side of the upper surface of the mounting substrate (1); a cooling casing (3) is fixedly connected to the center of the upper surface of the mounting substrate (1); a plate heat exchanger (4) is installed on the other side of the upper surface of the mounting substrate (1); a cooling component (5) is installed inside the cooling casing (3); the output end of the pressure reducing valve (2) is flange-connected to the cooling casing (3) via an air inlet duct (6); the cooling casing (3) is flange-connected to the plate heat exchanger (4) via an air outlet duct (8); the air outlet duct (8) is flange-connected to the plate heat exchanger (4); The air outlet end is directly opposite to the internal heat exchange plate of the plate heat exchanger (4); a first circulation pump (7) is installed at the center of the upper surface of the mounting substrate (1) near the plate heat exchanger (4); the cooling component (5) is connected to the plate heat exchanger (4) through the first circulation pump (7); the output end of the first circulation pump (7) is flange-connected to the hot fluid inlet end of the plate heat exchanger (4); a circulation component (9) is connected to the upper surface of the mounting substrate (1) near the plate heat exchanger (4); and the circulation component (9) is flange-connected to the cooling component (5).

2. The steam decompression heat recovery device according to claim 1, characterized in that: The cooling component (5) comprises a plurality of water exchange pipes (501), the ends of two adjacent water exchange pipes (501) being flange-connected via a flow guide pipe (502), and one end of the water exchange pipe (501) close to the air intake duct (6) is flange-connected to a liquid intake duct (503).

3. The steam decompression heat recovery equipment according to claim 2, characterized in that: One end of the hot water exchange pipe (501) close to the first circulation pump (7) is flange-connected with a liquid outlet conduit (504), and the liquid outlet conduit (504) is flange-connected to the liquid inlet end of the first circulation pump (7).

4. The steam decompression heat recovery equipment according to claim 2, characterized in that: The circulation component (9) comprises a circulation water tank (901), and the hot liquid outlet end of the plate heat exchanger (4) is flange-connected to the circulation water tank (901).

5. The steam decompression heat recovery device according to claim 4, characterized in that: A second circulating pump (902) is installed on the upper surface of the mounting base plate (1) near the circulating water tank (901), and a liquid inlet end of the second circulating pump (902) is flange-connected to the circulating water tank (901).

6. The steam decompression heat recovery device according to claim 5, characterized in that: The liquid outlet end of the second circulation pump (902) is flange-connected to the liquid inlet conduit (503) via a circulation conduit (903).

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