TWM644638U - Tunnel type hybrid cooling steam recycling apparatus - Google Patents

Abstract

A tunnel type hybrid cooling steam recycling apparatus includes: a housing; air-cooling heat exchanging plates disposed on an outer surface of the housing; a chamber formed in the housing; a mesh steam tunnel disposed in the chamber; a steam inlet penetrating through the housing; spraying heads disposed in the chamber; and a water outlet penetrating through the housing. Steam supplied into the mesh steam tunnel through the steam inlet is condensed into condensed water. In a hybrid mod, the spraying heads provides cooling spay to the chamber to dissipate heat in a hybrid manner in conjunction with the housing and the air-cooling heat exchanging plates.

Description

Tunnel-type air-cooled and water-cooled mixed cooling steam recovery equipment

The present invention relates to a steam recovery device, in particular to a tunnel-type air-cooled and water-cooled mixed cooling steam recovery device.

Today's steam turbine power plants have widely used steam condensers to condense the steam discharged from the steam turbine to achieve the effect of steam recovery. A conventional steam condenser has a chamber that communicates with a steam discharge port of a steam turbine, and cooling water flows through heat exchange tubes in the chamber. The steam discharged from the steam turbine enters the chamber and contacts the heat exchange tube, and the cooling water flowing into the heat exchange tube absorbs the latent heat of the high-temperature steam and condenses into water to achieve the function of steam recovery. Another traditional steam condenser has a chamber in which a heat exchange pipe (steam pipeline) is arranged, and the steam pipeline is connected to the steam outlet of the steam turbine, and the steam pipeline is cooled by cooling water in the chamber , to achieve the function of steam recovery.

The above-mentioned steam condenser requires a large amount of cooling water and heat exchange tubes, so the cost cannot be effectively reduced, and no matter whether the steam flows inside or outside the heat exchange tubes, it will cause noise and loss of the heat exchange tubes. Therefore, how to solve the above problems is actually the subject of this case.

Therefore, an object of the present invention is to provide a tunnel-type air-cooled and water-cooled mixed cooling steam recovery device, which can achieve the effects of rapid cooling and noise reduction.

To achieve the above purpose, the present invention provides a tunnel-type air-cooled and water-cooled mixed cooling steam recovery equipment, including: a shell; a plurality of air-cooled heat exchange plates arranged on an outer surface of the shell; a chamber, Formed in the casing; a grid-shaped steam tunnel, arranged in the chamber; a steam inlet, penetrating the casing; a plurality of spray heads, arranged in the chamber; and a water outlet, passing through the casing, wherein the steam inlet The steam provided enters the grid-shaped steam tunnel and condenses into condensed water. In a mixed mode, the spray heads provide cooling spray to the chamber, and cooperate with the shell and the air-cooled heat exchange plates for mixing and heat dissipation.

With the above-mentioned embodiment, the long and wide-bore steam tunnel can be used to buffer the flow of high-temperature and high-pressure steam, and layers of metal mesh can be used to break the wind and reduce pressure, and then metal filaments can be used to silence and absorb steam. Air cooling mixed with water cooling can achieve rapid cooling and recover steam with low noise.

In order to make the above-mentioned content of the present invention more obvious and understandable, the preferred embodiments are specifically cited below, together with the accompanying drawings, and are described in detail as follows.

Fig. 1 shows a schematic diagram of a steam power generation system using a steam recovery device according to a preferred embodiment of the present invention. As shown in FIG. 1 , the steam power generation system includes a steam recovery device 100 , a steam generation device 200 , a control device 210 , a turbine 220 and a generator 230 . In FIG. 1 , the paths of electrical connections are indicated by imaginary lines, while the paths of physical pipeline connections are indicated by solid lines. The control device 210 is electrically connected to units such as the steam recovery device 100 , the steam generation device 200 and the generator 230 for controlling the operation of these units. The steam recovery device 100 generates high-temperature and high-pressure steam to flow to the turbine 220. The turbine 220 converts the kinetic energy of the high-pressure steam into mechanical energy and is coupled to the generator 230. The generator 230 converts the mechanical energy into electrical energy. After passing through the turbine 220, the high-temperature and high-pressure steam is converted into low-temperature and low-pressure steam, and flows to the steam recovery equipment 100. The steam recovery equipment 100 condenses the steam into water, which is then provided to the steam generation equipment 200 to generate steam, or provided to other external units for further use.

FIG. 2 shows a schematic partial cross-sectional view of an example of the steam recovery device 100 in FIG. 1 in a side view direction. As shown in Figure 2, the steam recovery device 100 of this example is a tunnel-type air-cooled and water-cooled mixed cooling steam recovery device, which is installed on a ground, a building or a structure, and includes a housing 10, a plurality of air The cold heat exchange plate 20 , a chamber 30 , a grid-shaped steam tunnel 40 , a steam inlet 50 , a plurality of spray heads 60 and a water outlet 70 . The air-cooled heat exchange plate 20 is disposed on an outer surface 11 of the casing 10 and is in contact with the outside air to dissipate heat through air cooling, which can be implemented in the form of fins. A chamber 30 is formed in the housing 10 . A grid-shaped steam tunnel 40 is disposed in the chamber 30 . The steam inlet 50 penetrates the casing 10 and communicates with the chamber 30 . The spray head 60 is installed in the chamber 30, and in this example, it is installed above, and in other examples, it can be installed on the upper, lower, left, and right sides. The water outlet 70 runs through the casing 10 and communicates with the chamber 30 . During actual operation, the steam inlet 50 provides steam to enter the grid-shaped steam tunnel 40 and then condenses to become condensed water. In a mixing mode, the spray heads 60 provide cooling spray into the chamber 30 to cooperate with the casing 10 and the air-cooled heat exchange plates 20 to perform mixing and heat dissipation. It can be understood that the grid-shaped steam tunnel 40 breaks the wind and depressurizes the high-temperature and high-pressure steam, eliminating part of the kinetic energy, and some steam will directly condense in the grid-shaped steam tunnel 40, and some steam will pass through the grid The steam tunnel 40 becomes condensed water after being cooled by the casing 10 or other components.

In one example, the grid-like steam tunnel 40 includes a plurality of metal meshes and has an axis extending along the horizontal direction. The metal mesh is a cylindrical metal cage that provides resistance to steam and provides a medium for steam to condense. In another example, the grid-shaped steam tunnel 40 includes a plurality of circular, square or other shaped stainless steel nets, surrounded by cylindrical stainless steel nets, so as to achieve the function of breaking wind and reducing pressure in the axial and radial directions, providing more Good results.

The steam recovery device 100 may further include a plurality of grid partitions 80 , which divide the chamber 30 into a plurality of interconnected sub-chambers along the horizontal and vertical directions. These sub-chambers comprise a middle sub-chamber 31 and a plurality of peripheral sub-chambers 32 to 39 surrounding the middle sub-chamber 31, wherein the grid-like steam tunnel 40 is positioned in the middle sub-chamber 31 by four grid-like partitions 80 middle. A plurality of wires 81 are accommodated in the peripheral subchambers 32 to 39 . The metal filament 81 is, for example, steel wire, steel wool or steel wool, which is used for absorbing steam, reducing noise, and allowing steam to condense into condensed water. The spray head 60 provides a cooling spray to spray part or all of the wire 81 to cool down the wire 81 . The steam recovery device 100 may further include a plurality of sloping plates 82 for guiding the condensed water to flow to the water outlet 70. The sloping plates 82 may be positioned on the structural wall of the casing 10, inclined from both sides to the middle, so that the condensed water can flow together To the middle, finally flow out from the water outlet 70. It can be understood that, as long as the wire 81 can be fixed at a certain position, the grid partition 80 is not required.

The steam recovery device 100 may further include a control device 90 , a cooling water supply source 91 and a temperature sensor 92 . A cooling water supply source 91 is electrically connected to the control device 90 , and physical piping is connected to these spray heads 60 . In the mixed mode, the cooling water supply source 91 provides cooling water to the spray heads 60 to generate cooling spray, and can also add water in an appropriate amount to make up for the loss of dissipated steam. The temperature sensor 92 is disposed on the casing 10 or the air-cooled heat exchange plates 20 , and is electrically connected to the control device 90 . The control device 90 controls the cooling water supply source 91 according to a temperature signal from the temperature sensor 92 to provide cooling water to the spray heads 60 to generate cooling spray. When the temperature represented by the temperature signal is higher than a preset temperature (for example, 85 degrees Celsius or other temperature), the control device 90 enters the mixing mode, and when the temperature represented by the temperature signal is lower than or equal to the preset temperature, the control device 90 enters an air-cooling mode, which is used to control the cooling water supply source 91 not to provide cooling water to These spray heads 60 generate cooling spray.

In terms of replenishing water, in one example, a flow meter (not shown) is installed at the water outlet 70. When the flow rate of the flow meter does not reach the predetermined flow rate, the control device 90 controls the cooling water supply source 91 according to the signal of the flow meter to provide The cooling water generates cooling spray for the spray heads 60 without referring to the above-mentioned temperature signal. In another example, when the water level of the water supply source of the steam recovery equipment and the steam generation equipment is lower than a preset water level, the control device 90 controls the cooling water supply source 91 to provide cooling water to the These spray heads 60 generate cooling spray without referring to the above-mentioned temperature signal.

FIG. 3 shows a schematic front view of another example of the vapor recovery device of FIG. 1 . Part of the structure in FIG. 3 is similar to that in FIG. 2 , so the same components are marked with the same reference numerals. It is worth noting that, in order to avoid obscuring the structure of FIG. 3 , the wires are not drawn in FIG. 3 . As shown in FIG. 3 , the vapor recovery device 100 further includes a ventilation structure 95 disposed on the outer surface 11 of the casing 10 and communicating the chamber 30 with an external environment for adjusting the pressure of the chamber 30 . The sub-chambers further include a spray chamber 36A and an exhaust chamber 36B located above the peripheral sub-chambers 32-39. The spray head 60 provides cooling spray to spray a part or all of these wires 81 through the spray chamber 36A, and the ventilation structures 95 directly communicate with the exhaust chamber 36B. Thereby, a part of space can be provided for the cooling spray to enter the wire 81 , so as to prevent the wire 81 from blocking the spraying area of the spray head 60 . It can be understood that the ventilation structure 95 does not need to exist simultaneously with the spray chamber 36A and the exhaust chamber 36B, and the pressure of the chamber 30 can also be adjusted in FIG. 2 . In this example, the mesh steam tunnel 40 includes a plurality of metal meshes 41 to 45 (such as stainless steel mesh), each metal mesh 41 to 45 extends along a vertical direction, and these metal meshes 41 to 45 extend along a Arrange settings horizontally. It can be understood that the metal meshes 41 to 45 can be arranged to overlap with the grid-shaped partition 80 in a front view, and there is no special limitation here. In addition, the mesh holes of the metal mesh 41 near the steam inlet 50 are larger than the mesh holes of the metal mesh 45 far from the steam inlet 50 . That is to say, at the beginning, the coarse-mesh stainless steel mesh is used to provide the function of breaking wind and reducing pressure (and also has the function of partially silencing the sound). Because the pressure and kinetic energy of the steam have been reduced, the mesh holes of the stainless steel mesh at the rear end can gradually become thinner. (For example, in terms of mesh holes, metal mesh 45<metal mesh 44<metal mesh 43<metal mesh 42<metal mesh 41), in order to achieve the effect of reducing the pressure and kinetic energy of the steam in stages. In FIG. 3, the slant plate 82 slopes downward from left to right.

With the steam recovery equipment of the above embodiments, the long steam tunnel can be used to buffer the flow of high-temperature and high-pressure steam, and layers of metal mesh can be used to break the wind and reduce pressure, and then metal filaments can be used to absorb steam, silence sound, and pass through the air. The cold mixed water cooling method achieves rapid cooling and recovers steam with low noise.

The specific embodiments proposed in the detailed description of the preferred embodiments are only used to facilitate the description of the technical content of the present invention, rather than restricting the present invention to the above-mentioned embodiments in a narrow sense, without exceeding the spirit of the present invention and the scope of the patent application Under the situation, the implementation of the various changes done all belong to the scope of the present invention.

10: Housing 11: Outer surface 20: Air-cooled heat exchange plate 30: chamber 31: Intermediate sub-chamber 32 to 39: Peripheral subchambers 36A: spray chamber 36B: exhaust chamber 40: Gridded Steam Tunnel 41 to 45: Metal Mesh 50:Steam inlet 60: spray head 70: water outlet 80: grid partition 81: Metal wire 82: inclined board 90: Control device 91: Cooling water supply source 92:Temperature sensor 95: ventilation structure 100: Vapor recovery equipment 200: steam generating equipment 220: Turbine 230: Generator

[ Fig. 1 ] A schematic diagram showing a steam power generation system to which a steam recovery device according to a preferred embodiment of the present invention is applied. [ FIG. 2 ] A schematic partial cross-sectional view showing an example of the vapor recovery facility in [ FIG. 1 ] in a side view. [FIG. 3] A schematic front view showing another example of the vapor recovery facility of [FIG. 1].

10: shell

11: Outer surface

20: Air-cooled heat exchange plate

30: chamber

31: Intermediate sub-chamber

32 to 39: Peripheral subchambers

40: Gridded Steam Tunnel

50:Steam inlet

60: spray head

70: water outlet

80: grid partition

81: Metal wire

82: inclined board

90: Control device

91: Cooling water supply source

92:Temperature sensor

100: Vapor recovery equipment

Claims (10)

A tunnel-type air-cooled and water-cooled mixed cooling steam recovery equipment, including: a shell; a plurality of air-cooled heat exchange plates arranged on an outer surface of the casing; a chamber formed in the housing; A grid-shaped steam tunnel is arranged in the chamber; a steam inlet extending through the shell; a plurality of spray heads disposed in the chamber; and A water outlet runs through the casing, wherein the steam inlet provides steam to enter the grid-shaped steam tunnel and condenses into condensed water, and in a mixed mode, the spray heads provide cooling spray into the chamber, matching the The casing and the air-cooled heat exchange plates perform mixed heat dissipation. The tunnel-type air-cooled and water-cooled mixed cooling steam recovery equipment described in claim 1 further includes a plurality of grid-like partitions, which divide the chamber into multiple sub-chambers connected to each other along a horizontal direction and a vertical direction chamber, the sub-chambers include a central sub-chamber and a plurality of peripheral sub-chambers surrounding the central sub-chamber, wherein the grid-like vapor tunnel is positioned in the central sub-chamber. The tunnel-type air-cooled and water-cooled mixed cooling steam recovery equipment as described in claim 2, wherein the peripheral sub-chambers accommodate a plurality of metal filaments for absorbing the steam, eliminating sound and allowing the steam to condense into the Condensed water, the spray heads provide the cooling spray to spray a part or all of the wires. The tunnel-type air-cooled and water-cooled mixed cooling steam recovery equipment as described in claim 3 further includes: a ventilation structure, which is arranged on the outer surface of the housing and communicates with the chamber and an external environment for regulating The pressure of the chamber, wherein the sub-chambers further include a spray chamber and an exhaust chamber located above the peripheral sub-chambers, the spray heads provide the cooling spray through the spray chamber to spray the A part or all of the metal filaments, the ventilation structures directly communicate with the exhaust chamber. The tunnel-type air-cooled and water-cooled mixed cooling steam recovery equipment described in claim 2 further includes a plurality of sloping plates for guiding the condensed water to flow to the water outlet. The tunnel-type air-cooled and water-cooled mixed cooling steam recovery equipment described in claim 1 further includes: a control device; a cooling water supply source, electrically connected to the control device, and physically connected to the spray heads, wherein the cooling water supply source provides cooling water to the spray heads to generate the cooling spray; and A temperature sensor is arranged on the housing or the air-cooled heat exchange plates, and is electrically connected to the control device. The tunnel-type air-cooled and water-cooled mixed cooling steam recovery equipment as described in claim 6, wherein the control device controls the cooling water supply source to provide the cooling water to the spray heads according to a temperature signal from the temperature sensor to generate the cooling spray, when the temperature represented by the temperature signal is higher than a preset temperature, the control device enters the mixing mode, and when the temperature represented by the temperature signal is lower than or equal to the preset temperature, the control device enters a gas The cooling mode is used to control the cooling water supply source not to provide the cooling water to the spray heads to generate the cooling spray. The tunnel-type air-cooled and water-cooled mixed cooling steam recovery equipment described in claim 1 further includes: A ventilation structure is arranged on the outer surface of the casing and communicates the chamber with an external environment for adjusting the pressure of the chamber. The tunnel-type air-cooled and water-cooled mixed cooling steam recovery equipment as described in claim 1, wherein the grid-shaped steam tunnel includes a plurality of metal meshes, each of which extends along a vertical direction, and the metal meshes are along the - Horizontal setting. The tunnel-type air-cooled and water-cooled mixed cooling steam recovery equipment as described in claim 9, wherein the mesh holes of one of the metal meshes close to the steam inlet are larger than those of one of the metal meshes far away from the steam inlet Grid holes.

Images