High-pressure hot water emptying and silencing device and working method

Abstract

The invention discloses a high-pressure hot water emptying and silencing device and a working method.The high-pressure hot water emptying and silencing device comprises a container, and the container is used for receiving discharged high-pressure hot water; the container comprises a lower sealing head and a main cylinder body; the main cylinder body is arranged on the lower sealing head and is connected with the lower sealing head; the lower sealing head is provided with a first inner cavity; the main cylinder body is provided with a second inner cavity; the second inner cavity is communicated with the first inner cavity; the lower sealing head is provided with a water outlet pipe which is communicated with the first inner cavity; the main cylinder body is provided with a plurality of stages of porous pressure reducing cylinders; a plurality of first through holes for reducing the pressure of high-pressure hot water are formed in the porous pressure reducing cylinder; a set distance is kept between the multiple stages of porous pressure reducing cylinders; at least one stage of porous depressurization cylinder is connected with a water inlet pipe; the water inlet pipe communicates with the second inner cavity; the second inner cavity further communicates with the external environment. The main barrel is provided with a turbulent flow noise reduction structure used for reducing noise in the steam discharging process. High-pressure hot water can be discharged conveniently, and noise generated in the high-pressure hot water discharging process can be reduced.

Description

Technical Field

[0001] This invention belongs to the field of fluid machinery noise control technology, specifically relating to a high-pressure hot water venting silencing device and its working method. Background Technology

[0002] In industrial boilers, thermal systems, chemical equipment, geothermal water extraction, and residential heating, the rapid venting of high-pressure hot water is a common operation for safe equipment operation and system maintenance when unit shutdown is required in emergency / accident / maintenance situations. However, the instantaneous venting of high-pressure fluids often results in severe noise pollution exceeding 100 decibels due to the sudden pressure drop, violent fluid expansion, and intense disturbance of the gas-liquid two-phase flow, seriously endangering the health of workers and potentially triggering complaints from nearby residents. Currently, there is an urgent need to develop a high-pressure hot water venting silencing device to facilitate the venting of high-pressure hot water and reduce noise during the venting process. Furthermore, it is necessary to develop a working method for this high-pressure hot water venting silencing device to improve its operational safety. Summary of the Invention

[0003] To address the aforementioned problems in the prior art, this invention provides a high-pressure hot water venting and silencing device, which facilitates the discharge of high-pressure hot water and reduces noise during the high-pressure hot water discharge process.

[0004] The present invention adopts the following technical solution: A high-pressure hot water venting silencing device includes a container for receiving discharged high-pressure hot water; the container includes a lower end cap and a main cylinder; the main cylinder is disposed on and connected to the lower end cap; the lower end cap has a first inner cavity; the main cylinder has a second inner cavity; the second inner cavity communicates with the first inner cavity; the lower end cap is provided with a water outlet pipe, which communicates with the first inner cavity; the main cylinder is provided with several stages of perforated pressure-reducing cylinders; each perforated pressure-reducing cylinder has several first through holes for reducing the pressure of the high-pressure hot water; a set spacing is maintained between the stages of perforated pressure-reducing cylinders; at least one stage of perforated pressure-reducing cylinder is connected to a water inlet pipe; the water inlet pipe communicates with the second inner cavity; the second inner cavity also communicates with the external environment; the main cylinder is provided with a turbulence silencing structure, which is used to reduce noise during the steam discharge process.

[0005] Furthermore, the porous pressure-reducing cylinder is provided with three stages; the diameter of the first through hole decreases progressively with each stage.

[0006] Furthermore, on each stage of the porous pressure-reducing cylinder, the spacing p of the first through holes and the diameter d of the first through holes satisfy: 1.75 ≤ ≤5.

[0007] Furthermore, a flow guide shroud is provided inside the main cylinder; the flow guide shroud has a steam exhaust port, and the second inner cavity is connected to the steam exhaust port.

[0008] Furthermore, the turbulence silencing structure includes a second through hole, which is located at a side position of the main cylinder and connects the external environment with the second inner cavity.

[0009] Furthermore, the turbulence-absorbing structure also includes an inner cylinder; the inner cylinder is provided with a plurality of third through holes; the inner cylinder is disposed inside the main cylinder and maintains a set distance from the inner wall of the main cylinder.

[0010] Furthermore, a high-pressure hot water venting silencing device also includes a level gauge connector; the level gauge connector is disposed on the container and communicates with the inner cavity of the container; the level gauge connector is used to house the level gauge.

[0011] Furthermore, a high-pressure hot water venting and silencing device also includes a cleaning interface; the cleaning interface is disposed on the container and positioned facing the porous pressure reducing cylinder, and the cleaning interface is used to connect a cleaning pipe to rinse the porous pressure reducing cylinder.

[0012] Furthermore, a high-pressure hot water venting and silencing device also includes a skirt support; the lower end cap or the main cylinder is mounted on the skirt support; the skirt support is used to support the container.

[0013] Another objective of this invention is to provide a method for operating a high-pressure hot water venting and silencing device to improve the operational safety of the device.

[0014] A method for operating a high-pressure hot water venting silencer, based on the aforementioned high-pressure hot water venting silencer, includes the following steps: S1. High-pressure hot water is discharged from the inlet pipe; S2. The high-pressure hot water is depressurized through several stages of the porous pressure-reducing cylinder, and the hot water flows into the first inner cavity; Steam generated by high-pressure hot water is discharged upwards to the external environment through the second inner cavity; when the steam is discharged to the external environment, the turbulence-induced noise reduction structure reduces the noise generated during the steam discharge process. S3. Control the liquid level of hot water in the container so that the liquid level does not exceed the set liquid level. The hot water in the container is discharged to a designated location through the outlet pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention discloses a high-pressure hot water venting and silencing device. Its inlet pipe allows high-pressure hot water to flow into the inner cavity of a container. During the inflow process, the hot water undergoes pressure reduction through several stages of porous pressure-reducing cylinders before flowing to the outlet pipe for discharge. During the pressure reduction process, the high-pressure hot water generates flash steam, which is discharged through a second inner cavity towards the external environment. The steam flows at high speed during this discharge (creating a low-pressure zone). Under the pressure difference, cold air from the external environment (cold and hot are relative) flows into the low-pressure zone through the perforations of the turbulence-induced silencing structure, causing alternating hot and cold air masses that interfere with the sound waves of the high-speed steam flow, thereby reducing noise.

[0016] The present invention provides a high-pressure hot water venting and noise reduction device, which can facilitate the discharge of high-pressure hot water and reduce the noise during the high-pressure hot water discharge process.

[0017] The present invention discloses a working method for a high-pressure hot water venting and silencing device, which improves the operational safety of the new high-pressure hot water venting and silencing device and reduces noise during the high-pressure hot water discharge process through specific working steps (steps S1 to S3). Attached Figure Description

[0018] The technology of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Figure 1 This is a sectional elevation view of a high-pressure hot water venting and silencing device. Figure 2 This is a schematic diagram of an embodiment of a porous pressure reducing cylinder (as described in the third level of the porous pressure reducing cylinder). Figure 3 This is a schematic elevation view of a high-pressure hot water venting and silencing device. Figure 4 This is a top view of a high-pressure hot water venting and silencing device (simplified schematic diagram of a multi-hole pressure reducing cylinder).

[0019] Figure label: 1-Container; 11-Lower head; 111-First inner cavity; 12-Main cylinder; 121-Second inner cavity; C-Liquid level line; 2-Outlet pipe; 21-Elbow section of water pipe; 22-Horizontal section of water pipe; 3-Porous pressure reducing cylinder; A-First through hole; 31-First stage porous pressure reducing cylinder; 311-First spherical end cap; 32-Second stage porous pressure reducing cylinder; 321-Second spherical end cap; 322-First connecting cylinder; 33-Third stage porous pressure reducing cylinder; 331-Third spherical end cap; 332-Second connecting cylinder; 4-Inlet pipe; 5-Disturbance and noise reduction structure; 51-Second through hole; 52-Inner cylinder; B-Annular space; 6-Diffuser; 61-Conical shroud; 62-Exhaust cylinder; 621-Exhaust port; 63-Annular plate; 7-Ring plate; 81-Level gauge connector; 82-Cleaning interface; 9-Skirt support; 91-Reinforcing rib. Detailed Implementation

[0020] The following will provide a clear and complete description of the concept, specific structure, and technical effects of the present invention in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of the present invention. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the accompanying drawings indicate the same or similar parts.

[0021] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. Furthermore, the descriptions of "up," "down," "left," and "right" used in this invention are only relative to the relative positional relationships of the various components of the invention in the accompanying drawings.

[0022] Reference Figures 1 to 4 A high-pressure hot water venting silencing device includes a container 1 for receiving discharged high-pressure hot water; the container 1 includes a lower end cap 11 and a main cylinder 12; the main cylinder 12 is disposed on the lower end cap 11 and connected to the lower end cap 11; the lower end cap 11 has a first inner cavity 111; the main cylinder 12 has a second inner cavity 121; the second inner cavity 121 communicates with the first inner cavity 111; the lower end cap 11 is provided with a water outlet pipe 2, which communicates with the first inner cavity. 111; The main cylinder 12 is provided with several stages of porous pressure reducing cylinders 3; Several first through holes A for pressure reduction of high-pressure hot water are provided on the porous pressure reducing cylinders 3; A set spacing is maintained between the several stages of porous pressure reducing cylinders 3; At least one stage of the porous pressure reducing cylinder 3 is connected to a water inlet pipe 4; The water inlet pipe 4 is connected to the second inner cavity 121; The second inner cavity 121 is also connected to the external environment; The main cylinder 12 is provided with a turbulence silencing structure 5, which is used to reduce noise during the steam emission process.

[0023] Reference Figures 1 to 4 In one embodiment, the lower end cap 11 is a curved panel, and the curved panel is provided with the first inner cavity 111.

[0024] Reference Figures 1 to 4In one embodiment, the lower end of the main cylinder 12 is welded and fixed to the upper end of the lower end cap 11; the second inner cavity 121 and the first inner cavity 111 are connected together to form the inner cavity of the container 1.

[0025] In another embodiment, the lower end cap is a flat plate, in which case the first inner cavity and the second inner cavity overlap (this situation also falls within the protection scope of "the second inner cavity is connected to the first inner cavity"), and both belong to the inner cavity of the container.

[0026] Reference Figures 1 to 4 In one embodiment, the number of the porous pressure-reducing cylinders 3 can be set according to actual conditions to form a tiered pressure reduction. The main cylinder 12 of the present invention is provided with several stages of the porous pressure-reducing cylinders 3, and the pressure drop coefficient of each stage of the porous pressure-reducing cylinder 3 is not less than a pressure drop ratio of 0.546. For example, the initial pressure of the high-pressure hot water is... After the high-pressure hot water passes through the first-stage porous pressure-reducing cylinder 31, the pressure of the high-pressure hot water becomes... After passing through the second-stage porous pressure-reducing cylinder 32, the pressure of the high-pressure hot water becomes... After passing through the third stage porous pressure-reducing cylinder 33, the pressure of the high-pressure hot water becomes... .

[0027] Reference Figures 1 to 4 In one embodiment, according to actual usage needs, the porous pressure reducing cylinder 3 is provided with three stages, namely the first stage porous pressure reducing cylinder 31, the second stage porous pressure reducing cylinder 32, and the third stage porous pressure reducing cylinder 33; the diameter of the first through hole A decreases step by step, that is: the diameter of the first through hole A on the first stage porous pressure reducing cylinder 31 is larger than the diameter of the first through hole A on the second stage porous pressure reducing cylinder 32; the diameter of the first through hole A on the second stage porous pressure reducing cylinder 32 is larger than the diameter of the first through hole A on the third stage porous pressure reducing cylinder 33.

[0028] Reference Figure 2 In one embodiment, on each stage of the porous pressure-reducing cylinder 3, the spacing p of the first through holes and the diameter d of the first through holes satisfy: 1.75 ≤ ≤5.

[0029] Reference Figures 1 to 4In one embodiment, the first-stage multi-stage pressure-reducing cylinder 31 includes a first spherical end cap 311, which has a plurality of first through holes A. The first spherical end cap 311 is connected (e.g., welded) to the water inlet pipe 4. Preferably, the water inlet pipe 4 is a tapered water inlet pipe (smaller cross-section at the left end and larger cross-section at the right end, with the cross-section gradually increasing from left to right). This tapered water inlet pipe can reduce the flow velocity of the incoming high-pressure hot water and reduce the impact on the first spherical end cap 311. The water inlet pipe 4 is connected (e.g., welded) to the side of the main cylinder 12, and part of the water inlet pipe 4 is located in the second inner cavity 121. The side of this part of the water inlet pipe 4 preferably has first through holes A. Preferably, in this embodiment, the diameter of the first through hole A is 10mm to 18mm. The spacing p of the first through holes and the diameter d of the first through holes satisfy: 1.75 ≤ ≤5.

[0030] Reference Figures 1 to 4 In one embodiment, the second-stage porous pressure-reducing cylinder 32 includes a second spherical end cap 321 and a first connecting cylinder 322. The second spherical end cap 321 and the first connecting cylinder 322 are connected (e.g., welded) together. Both the second spherical end cap 321 and the first connecting cylinder 322 are provided with the first through hole A. The spacing p of the first through holes and the diameter d of the first through holes satisfy: 1.75 ≤ ≤5; The diameter of the first through hole A on the second-stage porous pressure reducing cylinder 32 is smaller than the diameter of the first through hole A on the first-stage porous pressure reducing cylinder 31; The first connecting cylinder 322 is connected (e.g., welded) to the inner wall of the main cylinder 12; After the second-stage porous pressure reducing cylinder 32 is connected, it is located in the second inner cavity 121, and the second-stage porous pressure reducing cylinder 32 covers the first-stage porous pressure reducing cylinder 31.

[0031] Reference Figures 1 to 4 In one embodiment, the third-stage porous pressure-reducing cylinder 33 includes a third spherical end cap 331 and a second connecting cylinder 332. The third spherical end cap 331 and the second connecting cylinder 332 are connected (e.g., welded) together. Both the third spherical end cap 331 and the second connecting cylinder 332 are provided with the first through hole A. The spacing p of the first through holes and the diameter d of the first through holes satisfy: 1.75 ≤ ≤5; The diameter of the first through hole A on the third-stage porous pressure reducing cylinder 33 is smaller than the diameter of the first through hole A on the second-stage porous pressure reducing cylinder 32; Preferably, the diameter of the first through hole A on the third-stage porous pressure reducing cylinder 33 is 2mm; The second connecting cylinder 332 is connected (e.g., welded) to the inner wall of the main cylinder 12; After the third-stage porous pressure reducing cylinder 33 is connected, it is located in the second inner cavity 121, and the third-stage porous pressure reducing cylinder 33 covers the second-stage porous pressure reducing cylinder 32.

[0032] In one embodiment, the principle is explained as follows: High-pressure hot water enters the device from the inlet pipe 4. When the high-pressure hot water passes through the porous pressure-reducing cylinder 3, it undergoes an instantaneous transformation from pressure energy to kinetic energy upon passing through the small hole (i.e., the first through hole A). The high-pressure hot water exhibits a rapid increase in flow velocity and a sharp decrease in pressure (due to the Bernoulli effect). In the turbulent region after the hole, the transformation from kinetic energy to turbulent energy to thermal energy occurs, causing the high-pressure hot water to rapidly decrease in flow velocity and its pressure to continue to decrease slowly (due to energy dissipation). After passing through the turbulent region, the high-pressure hot water flows stably between stages (between the previous and subsequent porous pressure-reducing cylinders), with a smooth change in flow velocity and a slow decrease in pressure (due to energy loss, mainly achieved through viscous dissipation and friction of the fluid).

[0033] Based on the above principle, the high-pressure hot water passes through several stages of porous pressure-reducing cylinders 3 in sequence, and the hot water pressure is reduced to the required level. Finally, it flows out from the outlet pipe 2.

[0034] The porous pressure-reducing cylinder 3 of the present invention can also be used to reduce the noise of high-pressure hot water during the discharge process. Therefore, the porous pressure-reducing cylinder 3 of the present invention can also be called a "porous pressure-reducing silencer". Explained, for example, after high-pressure hot water passes through the porous pressure-reducing cylinder 3, the turbulent state of the fluid (hot water) will consume some energy, thereby reducing the generation of noise. Also, the porous design of the porous pressure-reducing cylinder 3 can change the flow path of the fluid, and the size of the first through hole A of the porous pressure-reducing cylinder 3 can change the flow velocity of the fluid. The present invention uses the porous pressure-reducing cylinder 3 to change the flow path and velocity of the fluid, which can modulate the noise frequency. This modulation can convert high-frequency noise into low-frequency noise, thereby achieving noise reduction.

[0035] In one embodiment, the porous pressure-reducing cylinder 3 is made of stainless steel, which helps to improve the service life of the device.

[0036] Reference Figures 1 to 4In one embodiment, the outlet pipe 2 is connected to the first inner cavity 111 for safely discharging the depressurized hot water from the container 1; the outlet pipe 2 includes a bend section 21 and a horizontal section 22; the horizontal section 22 is connected to the bend section 21, and the bend section 21 is connected to the first inner cavity 111 of the lower end cap 11; after the outlet pipe 2 is installed, the central axis of the horizontal section 22 is parallel to the horizontal plane; wherein, the horizontal section 22 facilitates the connection of the outlet pipe 2 to other pipes.

[0037] Reference Figures 1 to 4 In one embodiment, a flow guide 6 is provided inside the main cylinder 12; the flow guide 6 has a steam exhaust port 621, and the second inner cavity 121 is connected to the steam exhaust port 621.

[0038] Reference Figures 1 to 4 In one embodiment, as the high-pressure hot water passes through several stages of the porous pressure-reducing cylinder 3, the throttling pressure gradually decreases. When the pressure is lower than the saturation pressure of the hot water, flash steam is generated. The generated flash steam is discharged to the atmosphere (external environment) through the exhaust port 621. Liquid water is stored in the lower part of the main cylinder 12, and the stored water can be discharged through the water outlet pipe 2.

[0039] Reference Figures 1 to 4 In one embodiment, the deflector 6 includes a conical shroud 61 and an exhaust cylinder 62; the exhaust cylinder 62 is a short (vertical) cylinder that encloses the exhaust port 621; the exhaust cylinder 62 is connected (e.g., welded) to the conical shroud 61; and the conical shroud 61 is connected to the inner wall of the main cylinder 12.

[0040] Reference Figures 1 to 4 In one embodiment, the conical shroud 61 has a large cross-section at the lower end and a small cross-section at the upper end, with the cross-section gradually decreasing from bottom to top. This conical shroud 61 is beneficial for increasing the flow rate of steam (during the discharge process) and for forming a low-pressure zone in the second inner cavity 121 above the exhaust port 621.

[0041] Reference Figures 1 to 4 In one embodiment, the flow guide shroud 6 further includes an annular plate 63, the conical shroud 61 is connected to the annular plate 63 (e.g., welded), and the annular plate 63 is connected to the main cylinder 12 (e.g., welded); the conical shroud 61 is connected to the main cylinder 12 via the annular plate 63. Preferably, the annular plate 63 is positioned above the third-stage porous pressure-reducing cylinder 33, maintaining a set height distance from the third porous pressure-reducing cylinder 33.

[0042] Reference Figures 1 to 4In one embodiment, the turbulence silencing structure 5 includes a second through hole 51, which is located on the side of the main cylinder 12 and connects the external environment with the second inner cavity 121.

[0043] Reference Figures 1 to 4 In one embodiment, the turbulence-absorbing structure 5 further includes an inner cylinder 52; the inner cylinder 52 is provided with a plurality of third through holes; the inner cylinder 52 is disposed inside the main cylinder 12 and maintains a set distance from the inner wall of the main cylinder 12. The inner cylinder 52 is provided with densely packed small holes (i.e., third through holes), which helps to disperse sound waves; preferably, the diameter of the third through holes is less than or equal to 5 mm. The opening ratio of the inner cylinder 52 is approximately 50%.

[0044] Reference Figures 1 to 4 Preferably, the lower end of the inner cylinder 52 is connected to the ring plate 63 (e.g., by welding); after the inner cylinder 52 is connected to the ring plate 63, the inner cylinder 52 and the inner wall of the main cylinder 12 maintain a set distance, and the annular space B formed by this distance can allow external gas to flow in; the third through hole on the inner cylinder 52 connects the annular space B with the second inner cavity 121.

[0045] Reference Figures 1 to 4 Preferably, the side of the main cylinder 12 facing the inner cylinder 52 is provided with a second through hole 51. The second through hole 51 connects the external environment with the annular space B, and then connects with the second inner cavity 121 through the third through hole. At that time, steam is discharged at high speed from the exhaust port 621 to the external environment. The second inner cavity 121 above the exhaust port 621 will form a low-pressure area. This low-pressure area forms a pressure difference with the external atmospheric pressure (side of the main cylinder 12). Under the action of the pressure difference, external gas (such as cold air) can enter the second inner cavity 121 above the exhaust port 621 through the second through hole 51 → the annular space B → the third through hole. Afterwards, the alternation of hot and cold air interferes with the sound waves of the high-speed flowing steam, thereby reducing noise.

[0046] Reference Figures 1 to 4 In one embodiment, a high-pressure hot water venting silencing device further includes a ring plate 7, which is disposed on the top of the main cylinder 12 to reinforce the top of the main cylinder 12.

[0047] Reference Figures 1 to 4In one embodiment, a high-pressure hot water venting silencing device further includes a level gauge connector 81; the level gauge connector 81 is disposed on the container 1 and communicates with the inner cavity of the container 1; the level gauge connector 81 is used to house a level gauge.

[0048] Reference Figures 1 to 4 In one embodiment, the outer wall surface of the lower end cap 11 and the outer wall surface of the main cylinder 12 are respectively provided with the liquid level gauge connector 81; the two liquid level gauge connectors 81 are respectively connected to the first inner cavity 111 and the second inner cavity 121.

[0049] In one embodiment, a high-pressure hot water venting silencing device further includes a level gauge; the level gauge is installed in the level gauge connector 81, and the level gauge is used to detect the liquid level in the inner cavity of the container 1. Preferably, the liquid level accumulated in the inner cavity of the container 1 is such that it does not exceed the lowest point of the inlet pipe 4 (see reference). Figure 1 The liquid level line C is shown in the figure.

[0050] Reference Figures 1 to 4 In one embodiment, a high-pressure hot water venting and silencing device further includes a cleaning interface 82; the cleaning interface 82 is disposed on the container 1 and is positioned facing the porous pressure reducing cylinder 3, and the cleaning interface 82 is used to connect a cleaning pipe to rinse the porous pressure reducing cylinder 3.

[0051] In one embodiment, a high-pressure hot water venting silencing device further includes a cleaning pipe connected to the cleaning interface 82. When the porous pressure-reducing cylinder 3 needs cleaning, chemical cleaning solution is flushed into the container 1 through the cleaning pipe to rinse away dirt from the surface of the porous pressure-reducing cylinder 3. For example, during high-pressure hot water flash evaporation, the concentration of impurity ions in the water tends to increase, including... , Plasma is easily combined with , When these substances combine, they easily precipitate solid substances, which tend to accumulate on the porous pressure reducing cylinder 3 in the form of scale. The accumulation of dirt on the porous pressure reducing cylinder 3 can easily weaken the flow effect of the first through hole A, or even cause blockage. This invention can effectively clean the porous pressure reducing cylinder 3 by using a cleaning connector, which helps to improve the service life of the device.

[0052] Reference Figures 1 to 4In one embodiment, a high-pressure hot water venting silencing device further includes a skirt-type support 9; the lower end cap 11 or the main cylinder 12 is disposed on the skirt-type support 9; the skirt-type support 9 is used to support the container 1. Preferably, the skirt-type support 9 is provided with reinforcing ribs 91, which are used to strengthen the structure of the skirt-type support 9 so that it can support the container 1 more stably. Preferably, the skirt-type support 9 is a lower cylinder. Preferably, the water outlet pipe 2 and the level gauge connecting pipe 81 at a set position can pass through the side wall of the skirt-type support 9.

[0053] Another objective of this invention is to provide a method for operating a high-pressure hot water venting and silencing device to improve the operational safety of the device.

[0054] Reference Figures 1 to 4 A method for operating a high-pressure hot water venting silencing device, which is based on the aforementioned high-pressure hot water venting silencing device, includes the following steps: S1. High-pressure hot water is discharged from the inlet pipe 4; preferably, the flow velocity of the high-pressure hot water in the inlet pipe 4 is less than 0.4 m / s; S2. The high-pressure hot water is depressurized through several stages of the porous pressure reducing cylinder 3 (e.g., through the first stage porous pressure reducing cylinder 31 → the second stage porous pressure reducing cylinder 32 → the third stage porous pressure reducing cylinder 33), and the hot water flows to the first inner cavity 111. Flash steam generated by high-pressure hot water (during pressure reduction) is discharged upward to the external environment through the second inner cavity 121. Preferably, the flow velocity of flash steam in the second inner cavity 121 is less than 10 m / s. When flash steam is discharged to the external environment, the turbulence silencing structure 5 can reduce the noise generated during the flash steam discharge process. S3. Control the water level in container 1 so that it does not exceed a set level, such as ensuring it does not exceed the lowest point of the inlet pipe 4, referring to... Figure 1 The liquid level line C in the figure is shown; The hot water in container 1 is discharged to a designated location through the outlet pipe 2, such as to a designated external environment (e.g., a drainage ditch).

[0055] In one embodiment, the high-pressure hot water venting silencing device of the present invention has a main cylinder 12 with a diameter of approximately 4m; the main cylinder 12 combined with the skirt support 9 has an overall height of approximately 6.5m.

[0056] In one embodiment, the high-pressure hot water venting silencing device of the present invention is used in a geothermal power plant project. The underground hot water temperature is 142℃ (caused by the underground high-pressure environment) and the pressure is 0.4MPa; the local atmospheric pressure is 0.05MPa; the pressure ratio of the underground high-pressure hot water to the atmospheric pressure is 8. The high-pressure hot water venting silencing device of the present invention is equipped with a three-stage porous pressure reducing cylinder 3 to help reduce the pressure of the high-pressure hot water. The high-pressure hot water venting silencing device of the present invention can vent 790 tons of underground saline hot water per hour, and the noise emitted during the venting process is less than 80 decibels.

[0057] This invention discloses a high-pressure hot water venting and silencing device, which facilitates the discharge of high-pressure hot water and reduces noise during the discharge process. The device features a reasonable and reliable structural design, enabling long-term operation.

[0058] Other aspects of the high-pressure hot water venting and silencing device and its working method described in this invention can be found in the prior art and will not be repeated here.

[0059] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A high-pressure hot water venting silencing device, characterized in that, The device includes a container for receiving discharged high-pressure hot water; the container includes a lower end cap and a main cylinder; the main cylinder is disposed on and connected to the lower end cap; the lower end cap has a first inner cavity; the main cylinder has a second inner cavity; the second inner cavity communicates with the first inner cavity; the lower end cap is provided with a water outlet pipe, which communicates with the first inner cavity; the main cylinder is provided with several stages of perforated pressure-reducing cylinders; each perforated pressure-reducing cylinder has several first through holes for reducing the pressure of the high-pressure hot water; the stages of perforated pressure-reducing cylinders maintain a set spacing; at least one stage of perforated pressure-reducing cylinder is connected to a water inlet pipe; the water inlet pipe communicates with the second inner cavity; the second inner cavity also communicates with the external environment; the main cylinder is provided with a turbulence-reducing and noise-absorbing structure, which is used to reduce noise during the steam discharge process.

2. The high-pressure hot water venting silencing device according to claim 1, characterized in that, The porous pressure-reducing cylinder is provided in three stages; the diameter of the first through hole decreases progressively with each stage.

3. The high-pressure hot water venting silencing device according to claim 1, characterized in that, On each stage of the porous pressure-reducing cylinder, the spacing p of the first through holes and the diameter d of the first through holes satisfy: 1.75 ≤ ≤5.

4. The high-pressure hot water venting silencing device according to claim 1, characterized in that, The main cylinder is equipped with a flow guide shroud; the flow guide shroud has a steam exhaust port, and the second inner cavity is connected to the steam exhaust port.

5. The high-pressure hot water venting silencing device according to claim 1, characterized in that, The turbulence silencing structure includes a second through hole, which is located on the side of the main cylinder and connects the external environment with the second inner cavity.

6. The high-pressure hot water venting silencing device according to claim 5, characterized in that, The turbulence-absorbing structure also includes an inner cylinder; the inner cylinder is provided with a plurality of third through holes; the inner cylinder is disposed inside the main cylinder and maintains a set distance from the inner wall of the main cylinder.

7. The high-pressure hot water venting silencing device according to claim 1, characterized in that, It also includes a level gauge connector; the level gauge connector is disposed on the container and communicates with the inner cavity of the container; the level gauge connector is used to house the level gauge.

8. The high-pressure hot water venting silencing device according to claim 1, characterized in that, It also includes a cleaning interface; the cleaning interface is disposed on the container and is positioned facing the porous pressure reducing cylinder, and the cleaning interface is used to connect a cleaning pipe to rinse the porous pressure reducing cylinder.

9. A high-pressure hot water venting silencing device according to any one of claims 1 to 8, characterized in that, It also includes a skirt support; the lower end cap or the main cylinder is mounted on the skirt support; the skirt support is used to support the container.

10. A method for operating a high-pressure hot water venting silencing device, wherein the method is based on the high-pressure hot water venting silencing device according to any one of claims 1 to 9, characterized in that, Includes the following steps: S1. High-pressure hot water is discharged from the inlet pipe; S2. The high-pressure hot water is depressurized through several stages of the porous pressure-reducing cylinder, and the hot water flows into the first inner cavity; Steam generated by high-pressure hot water is discharged upwards to the external environment through the second inner cavity; when the steam is discharged to the external environment, the turbulence-induced noise reduction structure reduces the noise generated during the steam discharge process. S3. Control the liquid level of hot water in the container so that the liquid level does not exceed the set liquid level. The hot water in the container is discharged to a designated location through the outlet pipe.

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