Outsourcing steam temperature and pressure reducing device

Abstract

The utility model belongs to the technical field of temperature and pressure reducing devices, and particularly relates to an outsourcing steam temperature and pressure reducing device. Comprising an air inlet pipe, a pressure reducing valve and a main pipeline which are sequentially connected in a penetrating mode, and a noise reduction mechanism is arranged between the pressure reducing valve and the main pipeline. A temperature reducing mechanism, an emptying mechanism and a temperature and pressure measuring mechanism are sequentially mounted on the main pipeline on the rear side of the noise reducing mechanism; the noise reduction mechanism is additionally arranged between the pressure reducing valve and the main pipeline, and the noise reduction mechanism carries out noise reduction treatment on steam subjected to pressure reduction through the pressure reducing valve during transportation, so that the noise influence in the steam transportation process is reduced; the noise reduction hole plate and the noise reduction holes are used for throttling passing steam, and generation and transmission of aerodynamic noise are effectively reduced through the modes of steam flow speed reduction, the noise reduction effect of the porous plate, the small hole diffusion principle and the like, so that the noise reduction effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of storage tanks, in particular to a temperature and pressure reduction device for purchased steam. Background Art

[0002] The steam temperature and pressure reduction device is a steam thermal energy parameter (temperature and pressure) conversion device and energy-saving device commonly used in modern industries such as chemical industry, electric power, heating, textile, etc. Its structure mainly includes a temperature reduction system, which sprays cooling water into the steam transport pipeline in a mist form through a high-pressure regulating valve or a variable frequency water pump to reduce the steam temperature; a pressure reduction system, in which the pressure reducing valve changes the flow area to achieve the purpose of regulating the pressure, and finally the steam after temperature and pressure reduction is used in industrial production.

[0003] The existing steam cooling and pressure reduction device purchased by our company lacks a matching noise reduction mechanism. Therefore, during the steam cooling and pressure reduction process, the equipment produces a lot of noise, which can easily cause pipeline vibration, affecting the normal operation of the equipment and the physical and mental health of the staff. If we purchase a steam cooling and pressure reduction device with a noise reduction mechanism again, the cost investment will be high and it will affect the normal operation of the workshop production. Utility Model Content

[0004] In order to solve the technical problem that the existing steam temperature reduction and pressure reduction device produces large noise during use, affecting the normal operation of other equipment and the physical and mental health of workers, the utility model provides an externally purchased steam temperature reduction and pressure reduction device.

[0005] The technical solution of the utility model is achieved through the following scheme: an externally purchased steam temperature and pressure reduction device, including an air intake pipe, a pressure reducing valve and a main pipeline that are connected in sequence, and a noise reduction mechanism is arranged between the pressure reducing valve and the main pipeline; a temperature reduction mechanism, an emptying mechanism and a temperature and pressure measuring mechanism are installed in sequence on the main pipeline located at the rear side of the noise reduction mechanism.

[0006] By using the above technical solution, a noise reduction mechanism is added between the pressure reducing valve and the main pipeline, and the noise reduction mechanism is used to reduce the noise of the steam reduced by the pressure reducing valve during transportation, thereby reducing the noise impact during steam transportation.

[0007] Preferably, the noise reduction mechanism includes a noise reduction mounting flange, a noise reduction orifice plate and noise reduction holes. The noise reduction mounting flange and the noise reduction orifice plate are an integrated structure. The noise reduction mounting flange is connected between the pressure reducing valve and the main pipeline through a flange. The noise reduction orifice plate is located in the main pipeline, and noise reduction holes are arranged on the noise reduction orifice plate.

[0008] By using the above technical solutions, the noise reduction orifice plate and the noise reduction holes are used to achieve throttling of the steam passing through: reducing the steam flow rate, the noise reduction effect of the porous plate and the small hole diffusion principle, etc., effectively reducing the generation and propagation of aerodynamic noise, thereby achieving the effect of noise reduction.

[0009] Preferably, the noise reduction holes penetrate the noise reduction orifice plate, and the major diameter of the noise reduction holes close to the noise reduction mounting flange is smaller than the major diameter of the noise reduction holes away from the noise reduction mounting flange.

[0010] By using the above technical solution and the bell-mouth structure design of the noise reduction hole, the flow velocity is reduced when the steam passes through. The reduction in flow velocity reduces the friction and turbulence between the airflow and the wall of the hole, thereby reducing the generation of noise. Under the premise of ensuring a certain flow velocity of steam, it is more conducive to the mixing of cooling water and steam in the temperature reduction mechanism, thereby achieving a good steam cooling effect.

[0011] Preferably, sealing grooves are respectively provided on both sides of the noise reduction mounting flange, and sealing rings are installed in the sealing grooves.

[0012] By using the above technical solution and the arrangement of the sealing groove and the sealing ring, it is avoided that the steam leaks when flowing in the pipeline due to the installation of the noise reduction mechanism.

[0013] Preferably, the temperature and pressure measuring mechanism comprises a pressure gauge and a thermometer, and the pressure gauge and the thermometer are respectively connected to the interior of the main pipeline.

[0014] By using the above technical solution, the pressure gauge and the thermometer are used to monitor the parameters of the steam after the temperature and pressure reduction to ensure that the steam parameters meet the established requirements.

[0015] In summary, the utility model has the following beneficial effects:

[0016] 1. The external steam temperature and pressure reduction device of the utility model adds a noise reduction mechanism between the pressure reducing valve and the main pipeline, and uses the noise reduction mechanism to reduce the noise of the steam after the pressure reduction by the pressure reducing valve during transportation, thereby reducing the noise impact during the steam transportation process.

[0017] 2. Furthermore, the noise reduction orifice plate and the noise reduction holes are used to achieve throttling of the steam passing through: reducing the steam flow rate, the noise reduction effect of the porous plate and the small hole diffusion principle, etc., effectively reduce the generation and propagation of aerodynamic noise, thereby achieving the effect of noise reduction.

[0018] 3. Secondly, the bell-mouth structure design of the noise reduction hole reduces the flow rate when steam passes through. The reduction in flow rate reduces the friction and turbulence between the airflow and the wall of the hole, thereby reducing the generation of noise. Under the premise of ensuring a certain steam flow rate, it is more conducive to the mixing of cooling water and steam in the temperature reduction mechanism, achieving a good steam cooling effect.

[0019] 4. Again, the setting of sealing grooves and sealing rings can prevent leakage of steam when it circulates in the pipeline due to the installation of noise reduction mechanisms; and the pressure gauge and thermometer are used to monitor the parameters of the steam after temperature and pressure reduction to ensure that the steam parameters meet the established requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the outsourced temperature and pressure reduction device of the utility model;

[0021] Figure 2 It is a cross-sectional view of the noise reduction mechanism and its installation part;

[0022] Figure 3 It is a cross-sectional view of the cross-section structure of the noise reduction mechanism;

[0023] Figure 4 This is a front view of the noise reduction mechanism structure.

[0024] Explanation of the reference numerals in the accompanying drawings: 1. Inlet pipe; 2. Pressure reducing valve; 3. Main pipeline; 4. Noise reduction mechanism; 41. Noise reduction mounting flange; 42. Noise reduction orifice plate; 43. Noise reduction hole; 44. Sealing groove; 5. Cooling mechanism; 6. Emptying mechanism; 7. Temperature and pressure measuring mechanism; 71. Pressure gauge; 72. Thermometer; 8. Sealing ring. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure. The present invention is further described in detail below in conjunction with the accompanying drawings.

[0027] Embodiment 1:

[0028] The utility model provides a steam temperature and pressure reduction device purchased from outside, such as Figure 1-Figure 4As shown, a device for reducing temperature and pressure of purchased steam comprises an air intake pipe 1, a pressure reducing valve 2 and a main pipeline 3 which are connected in sequence. The air intake pipe 1 is connected to the steam of the steam supply station to transport the high-temperature and high-pressure steam to the pressure reducing valve 2. The pressure reducing valve 2 reduces the pressure of the high-temperature and high-pressure steam. The pressure reducing valve 2 reduces the inlet pressure to a certain required outlet pressure through the throttling of the opening and closing parts, and keeps the outlet pressure stable to achieve the pressure reduction of steam transportation. A noise reduction mechanism 4 is arranged between the pressure reducing valve 2 and the main pipeline 3. The noise reduction mechanism 4 achieves the noise reduction of steam transportation by using the porous principle by changing the area of ​​steam flowing in the pipeline. A temperature reduction mechanism 5, an emptying mechanism 6 and a temperature and pressure measuring mechanism 7 are sequentially installed on the main pipeline 3 located at the rear side of the noise reduction mechanism 4. The temperature reduction mechanism 5 is used to spray cooling water into the main pipeline 3 in the form of mist, and mix it with the high-temperature steam to achieve the purpose of cooling. The temperature and pressure measuring mechanism 7 is located at the rear end of the main pipeline 3 to monitor the temperature and pressure of the steam that has finally completed the temperature reduction and pressure reduction to ensure that it meets the use requirements.

[0029] The cooling mechanism 5 includes a high-pressure differential water supply regulating valve, through which the cooling water enters the cooling mechanism from the cooling water pipeline, and is finally sprayed into the steam in the venturi or steam pipeline by the nozzle device in the form of mist, thereby achieving the cooling of the steam. At the same time, the cooling water pipeline is equipped with accessories such as a stop valve and a check valve to control the flow of the cooling water and prevent water backflow.

[0030] The exhaust mechanism 6 serves as a secondary steam pressure safety protection system. It prevents the secondary steam pressure from exceeding the specified value by setting a safety valve and an exhaust pipe. When the steam is over-pressured, the safety valve automatically opens to discharge excess steam and return the system pressure to a safe value.

[0031] As one of the specific embodiments, the noise reduction mechanism 4 includes a noise reduction mounting flange 41, a noise reduction orifice plate 42 and noise reduction holes 43. The noise reduction mounting flange 41 and the noise reduction orifice plate 42 are an integrated structure. The noise reduction mounting flange 41 is connected between the pressure reducing valve 2 and the main pipeline 3 through a flange. The noise reduction orifice plate 42 is located in the main pipeline 3, and noise reduction holes 43 are arranged on the noise reduction orifice plate 42; the noise reduction holes 43 pass through the noise reduction orifice plate 42, and the major diameter of the noise reduction holes 43 close to the noise reduction mounting flange 41 is smaller than the major diameter of the noise reduction holes 43 away from the noise reduction mounting flange 41.

[0032] Furthermore, sealing grooves 44 are respectively opened on both sides of the noise reduction mounting flange 41, and sealing rings 8 are installed in the sealing grooves 44, so that the flange connection between the noise reduction mounting flange 41 and the pressure reducing valve 2 and the connection between the noise reduction mounting flange 41 and the main pipeline 3 can ensure good sealing effect to prevent steam leakage.

[0033] As one specific implementation, the temperature and pressure measuring mechanism 7 includes a pressure gauge 71 and a thermometer 72. The pressure gauge 71 and the thermometer 72 are respectively connected to the inside of the main pipeline 3 to respectively measure the temperature and pressure of the steam that has been reduced in temperature and pressure.

[0034] The working principle of the utility model is as follows: when the high-temperature and high-pressure steam transmitted from the intake pipe 1 is depressurized by the pressure reducing valve 2, the noise reduction is performed when passing through the noise reduction mechanism 4, and then cooling water is sprayed at the temperature reduction mechanism 5 to cool the steam passing through. When the pressure of the steam with reduced temperature and pressure in the main pipeline 3 is too high, the safety valve of the emptying mechanism 6 automatically opens to discharge the excess steam and return the system pressure to a safe value. At the same time, the pressure gauge 71 and the thermometer 72 monitor the temperature and pressure of the steam in the main pipeline 3, and finally the steam is discharged to be used in the subsequent production line.

[0035] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An externally purchased steam temperature and pressure reduction device, characterized in that: The invention comprises an air intake pipe (1), a pressure reducing valve (2) and a main pipeline (3) which are connected in sequence, wherein a noise reduction mechanism (4) is arranged between the pressure reducing valve (2) and the main pipeline (3); a temperature reduction mechanism (5), an exhaust mechanism (6) and a temperature and pressure measuring mechanism (7) are arranged in sequence on the main pipeline (3) located at the rear side of the noise reduction mechanism (4); The noise reduction mechanism (4) comprises a noise reduction mounting flange (41), a noise reduction orifice plate (42) and noise reduction holes (43); the noise reduction mounting flange (41) and the noise reduction orifice plate (42) are an integrated structure; the noise reduction mounting flange (41) is connected between the pressure reducing valve (2) and the main pipeline (3) via a flange; the noise reduction orifice plate (42) is located in the main pipeline (3); and the noise reduction holes (43) are arranged on the noise reduction orifice plate (42).

2. The externally purchased steam temperature and pressure reduction device according to claim 1 is characterized in that: The noise reduction hole (43) passes through the noise reduction orifice plate (42), and the major diameter of the noise reduction hole (43) close to the noise reduction mounting flange (41) is smaller than the major diameter of the noise reduction hole (43) away from the noise reduction mounting flange (41).

3. The externally purchased steam temperature and pressure reduction device according to claim 1 is characterized in that: Sealing grooves (44) are respectively provided on both sides of the noise reduction mounting flange (41), and sealing rings (8) are installed in the sealing grooves (44).

4. The externally purchased steam temperature and pressure reduction device according to claim 1 is characterized in that: The temperature and pressure measuring mechanism (7) comprises a pressure gauge (71) and a thermometer (72), and the pressure gauge (71) and the thermometer (72) are respectively connected to the interior of the main pipeline (3).

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