An automatic ventilation and noise reduction system for a natural gas compressor room
By using high-performance soundproof doors, composite sound-absorbing and sound-insulating materials, and exhaust silencers in the natural gas compressor room, the problem of excessive noise was solved, and noise reduction and environmental management were effectively achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGGANG WUHAN ANHUANYUANLVSHIJI SAFETY MANAGEMENT CONSULTING CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-29
AI Technical Summary
The existing natural gas compressor room has high noise levels, resulting in excessive environmental and workplace noise, which endangers the physical and mental health of the staff.
High-performance soundproof doors, composite sound-absorbing and sound-insulating bodies, ventilation devices, and electrical control devices are used to reduce noise propagating outward from the computer room through sound insulation, reduce noise inside the computer room through sound absorption, and reduce exhaust noise through exhaust silencers.
It effectively reduced the noise intensity in the computer room, minimized the impact of noise on personnel, and achieved environmental noise control.
Smart Images
Figure CN224300519U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of noise reduction technology for computer rooms, and in particular to an automatic ventilation and noise reduction system for a natural gas compressor room. Background Technology
[0002] During the natural gas pressurization and production expansion process, the compressor room is located adjacent to the station perimeter wall due to site layout constraints. The natural gas compressors are piston-type, generating noise levels exceeding 90 dB(A). For detailed noise spectrum data of natural gas compressors with different power ratings, please refer to [link to relevant documentation]. Figure 1 As shown, the low and mid-frequency noise is significant and has strong penetrating power. At 400Hz, the noise intensity is >76dB; at 1000Hz, the noise intensity is >80dB. The existing compressor room walls are mostly made of 100mm thick ordinary color steel plates, which do not take into account the spectral characteristics of compressor noise and cannot effectively reduce low and mid-frequency noise, resulting in excessive environmental noise and workplace noise.
[0003] The noise in the compressor room mainly consists of direct sound and reflected sound. Direct sound is generated by the compressor and is reflected by walls or object surfaces to form reflected sound. The inner surfaces of the compressor room walls are mostly smooth corrugated steel plates, which have a sound absorption coefficient of 0.02, resulting in negligible sound absorption. Therefore, the reverberation intensity in the room is high, increasing the noise intensity exposed to personnel and harming their physical and mental health.
[0004] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content
[0005] The technical problem this invention aims to solve is the high noise level in existing natural gas compressor rooms, which is detrimental to the physical and mental health of personnel and also addresses the issue of environmental noise control.
[0006] The present invention adopts the following technical solution:
[0007] On the one hand, this utility model provides an automatic ventilation and noise reduction system for a natural gas compressor room, including: a high-performance soundproof door 1, a composite sound-absorbing and sound-insulating body 2, an exhaust device 3, and an electrical control device 4;
[0008] The high-performance soundproof door 1 is rotatably connected to the side wall of the computer room to reduce noise propagating outward from inside the computer room;
[0009] The composite sound-absorbing and sound-insulating body 2 is installed around the walls of the computer room. The composite sound-absorbing and sound-insulating body 2 is formed by multiple layers of sound insulation. The composite sound-absorbing and sound-insulating body 2 is used to reduce the noise inside the computer room.
[0010] The exhaust device 3 includes an exhaust fan assembly 30 and an exhaust silencer assembly 31. The exhaust fan assembly 30 is fixedly installed on the wall of the machine room. The electrical control device 4 is installed on the wall next to the high-performance soundproof door 1. The control terminal of the electrical control device 4 is connected to the exhaust fan assembly 30 and the exhaust silencer assembly 31 respectively. The exhaust silencer assembly 31 is used to reduce the noise when the exhaust fan assembly 30 exhausts air to the outside.
[0011] Preferably, the exhaust fan assembly 30 includes a plurality of wall exhaust fans 300 and at least two roof exhaust fans 301, and the exhaust silencer assembly 31 includes a wall exhaust silencer 310 and a roof exhaust silencer 311, wherein the wall exhaust silencer 310 is provided corresponding to the wall exhaust fan 300, and the roof exhaust silencer 311 is provided corresponding to the roof exhaust fan 301.
[0012] Preferably, the high-performance soundproof door 1 includes a soundproof door 10 and a soundproof door 11. The electronic control device 4 is installed on the side wall of the soundproof door 10. The soundproof door 10 is a double-opening swing type, and the soundproof door 11 is a single-opening swing type. The sound insulation Rw of the soundproof door 10 and the soundproof door 11 is 40dB±1dB.
[0013] Preferably, a temperature sensor is also installed in the machine room, and the temperature sensor is installed next to the ventilation opening of the wall exhaust fan 300.
[0014] Preferably, the exhaust device 3 further includes an air inlet silencer 32 and a duct fan 33. The air inlet silencer 32 is used to reduce noise when air enters the machine room. A natural gas compressor 5 is installed in the machine room. The air inlet silencer 32 is located below the opposite wall of the wall in the machine room where multiple wall exhaust fans 300 are installed. The duct fan 33 is located between the air inlet silencer 32 and the natural gas compressor 5.
[0015] Preferably, the effective air intake area of the air intake silencer 32 is 4.5m². 2 ±0.1m 2 The noise reduction is 30dB±1dB.
[0016] Preferably, the wall-mounted exhaust silencer 310 has a noise reduction of 30dB±1dB, and the roof exhaust silencer 311 has a noise reduction of 20dB±1dB.
[0017] Preferably, the composite sound-absorbing and sound-insulating body 2 includes a galvanized perforated steel plate, an alkali-free water-repellent glass cloth, glass fiber cotton, an alkali-free water-repellent glass cloth, a rubber damping plate and a galvanized steel plate arranged in sequence, wherein the galvanized steel plate is fixed in contact with the side wall of the machine room;
[0018] The galvanized perforated steel plate is 2mm ± 0.2mm thick, with a micropore diameter of 1.5mm ± 0.2mm and a perforation rate ≥ 30%. Its outer surface is coated with PVC powder coating, with a coating thickness of 120μm ± 0.2μm. The glass fiber wool is 50mm ± 0.2mm thick and has a density of 27 ± 0.5kg / m³. 3 The rubber damping plate is 6mm ± 0.2mm thick and is tightly adhered to the galvanized steel plate with structural adhesive; the galvanized steel plate is 2mm ± 0.2mm thick.
[0019] Preferably, the composite sound-absorbing and sound-insulating body 2 has a total thickness of 60mm±0.2mm, a sound insulation of 35dB±1dB, and a sound absorption coefficient of 0.90±0.1.
[0020] Preferably, the composite sound-absorbing and sound-insulating body 2 is disposed on the four walls of the computer room, and the distance between the composite sound-absorbing and sound-insulating body 2 and the walls of the computer room is 200mm±2mm.
[0021] Compared with the prior art, the beneficial effects of this utility model are as follows: by replacing the metal door commonly used in computer rooms with a high-performance soundproof door, the noise transmitted from the inside of the computer room to the outside environment can be effectively reduced. Furthermore, by installing a composite sound-absorbing and sound-insulating body 2 on the side wall of the computer room, the composite sound-absorbing and sound-insulating body 2 can absorb the main reverberation sound in the room and reduce the noise intensity in the room. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly described below. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.
[0023] Figure 1 This is a schematic diagram showing the noise decibel values generated by natural gas compressors of different power levels according to embodiments of this utility model;
[0024] Figure 2 This is a plan view of an automatic ventilation and noise reduction system for a natural gas compressor room provided in an embodiment of this utility model.
[0025] Figure 3 This is a schematic diagram showing the thickness and sound absorption coefficient of the glass fiber cotton in an automatic ventilation and noise reduction system for a natural gas compressor room, provided in an embodiment of this utility model.
[0026] Figure 4 This is a schematic diagram of the exhaust fan assembly and exhaust silencer assembly of an automatic ventilation and noise reduction system for a natural gas compressor room provided in an embodiment of this utility model;
[0027] Figure 5 This is a schematic diagram of a soundproof door for an automatic ventilation and noise reduction system for a natural gas compressor room, provided in an embodiment of this utility model.
[0028] Figure 6 This is a schematic diagram of the airflow direction of an automatic ventilation and noise reduction system for a natural gas compressor room provided in an embodiment of this utility model;
[0029] Figure 7 This is a schematic diagram of a soundproof door for an automatic ventilation and noise reduction system for a natural gas compressor room, provided in an embodiment of this utility model.
[0030] Figure 8 This is a schematic diagram of a wall exhaust fan for an automatic ventilation and noise reduction system for a natural gas compressor room, provided in an embodiment of this utility model.
[0031] The attached figures are labeled as follows:
[0032] 1-High-performance soundproof door, 10-Soundproof door, 11-Soundproof small door, 2-Composite sound-absorbing and sound-insulating body, 3-Exhaust device, 30-Exhaust fan assembly, 300-Wall exhaust fan, 301-Roof exhaust fan, 31-Exhaust silencer assembly, 310-Wall exhaust silencer, 311-Roof exhaust silencer, 32-Inlet silencer, 33-Drainage fan, 4-Electrical control device, 5-Natural gas compressor. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0034] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as openly inclusive, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples; that is, although they may be incorporated into embodiments or examples using the above terms for reasons such as order and position, it does not limit them to be incorporated in combination by a single embodiment or example.
[0035] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0036] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more. Furthermore, for example, the description may use the prefix "A" or "B" to describe the same type of nouns as two independent entities. In this case, the features defined with "A" and "B" are used only to distinguish between similar entities and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.
[0037] In describing some embodiments, the terms "coupled," "coupled," and "connected," and their derivative expressions, may be used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact with each other. Similarly, the term "coupled" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact. However, the terms "connected" or "coupled" may also refer to two or more components that do not have direct contact with each other but still cooperate or interact with each other, such as "optical coupling" or "wireless connection." The embodiments disclosed herein are not necessarily limited to the scope of this invention.
[0038] In the description of this utility model, the expression "A and / or B" (where A and B are used to formally represent specific features) will be involved. The corresponding expression includes the following three combinations: only A, only B, and a combination of A and B.
[0039] As used in this invention, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the specified value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the specified quantity (i.e., the limitations of the measurement system).
[0040] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0041] Example 1:
[0042] Embodiment 1 of this utility model provides an automatic ventilation and noise reduction system for a natural gas compressor room, such as... Figure 2 As shown, the system includes: a high-performance soundproof door 1, a composite sound-absorbing and sound-insulating body 2, an exhaust system 3, and an electrical control device 4. The high-performance soundproof door 1 is rotatably connected to the side wall of the machine room to reduce noise transmitted from inside the machine room to the outside. The composite sound-absorbing and sound-insulating body 2 is installed around the walls of the machine room and is formed by multiple layers of sound insulation. The composite sound-absorbing and sound-insulating body 2 is used to reduce noise inside the machine room. The side wall of the machine room is made of color steel plate 6. Existing factory buildings often use metal doors, which not only have poor sound insulation effects but also cause a large reverberation intensity of noise inside the factory, which is detrimental to the health of the staff. The high-performance soundproof door 1 can not only reduce the intensity of noise transmitted from inside the machine room to the outside but also reduce the reverberation intensity of noise inside the factory to a certain extent.
[0043] The exhaust device 3 includes an exhaust fan assembly 30 and an exhaust silencer assembly 31. The exhaust fan assembly 30 is fixedly installed on the wall of the machine room. The control terminal of the electrical control device 4 is connected to the exhaust fan assembly 30 and the exhaust silencer assembly 31 respectively. The exhaust silencer assembly 31 is used to reduce the noise when the exhaust fan assembly 30 exhausts air to the outside.
[0044] By replacing the commonly used metal doors in the computer room with high-performance soundproof doors, the noise transmitted from the inside of the computer room to the outside environment can be effectively reduced. Furthermore, the composite sound-absorbing and sound-insulating body 2 installed on the side wall of the computer room is designed according to the noise spectrum characteristics of the compressor, which is different from the existing color steel plate. It can absorb the main reverberation sound in the room and reduce the noise intensity in the room.
[0045] The automatic ventilation and noise reduction system for the natural gas compressor room described above will be further elaborated below.
[0046] See Figure 1 As shown, Figure 1The noise spectrum diagrams for natural gas compressors with power ratings of 560kW, 800kW, and 2713kW are shown. Their C-weighted noise values are 101.6dB(C), 98.1dB(C), and 106.0dB(C), respectively, and their A-weighted noise values are 91.8dB(A), 95.3dB(A), and 103.7dB(A), respectively. In the noise measurement, the A-weighting and C-weighting are two weighting networks simulating the sensitivity of the human ear to different frequency sounds. Figure 1 It can be seen that the noise characteristics of these three natural gas compressors 5 with different power ratings are broadband noise, with significant noise intensities at low frequencies below 500Hz, mid-frequency frequencies of 500Hz to 1000Hz, and high frequencies above 1000Hz. Specifically, the 560kW natural gas compressor 5 has a sound intensity of 86.7dB at 160Hz; the 2713kW natural gas compressor 5 has a sound intensity of 87.5dB at a low frequency of 250Hz, 95.4dB at a mid-frequency of 500Hz, and 98.9dB at a high frequency of 1.25kHz.
[0047] like Figure 3 It has a density of 27 kg / m³ 3 The effect of varying fiberglass wool thickness on the sound absorption coefficient is shown in the figure. As the fiberglass wool thickness δ increases, the mid-to-low frequency sound absorption coefficient α increases significantly, while the high-frequency change is minimal. Furthermore, while increasing the density can improve the mid-to-low frequency sound absorption coefficient when the fiberglass wool thickness remains constant, the effect of increasing the density is smaller than that of increasing the thickness. Therefore, with the same material usage, it is advisable to keep the fiberglass wool density constant and increase its thickness.
[0048] According to the steady-state sound pressure level calculation formula, the relationship between the sound pressure level at a distance r meters from the sound source and the direct sound and reverberant sound is as follows: Among them, L p L is the steady-state sound pressure level at a distance of r meters from the sound source. w Let be the sound power level of the sound source, Q be the directivity factor representing the directivity of the sound source (Q = 1 for omnidirectional sources), r be the distance between the receiver and the sound source, and R be the room constant, defined as... Where S is the total surface area of the room, and α is the average sound absorption coefficient of the room.
[0049] Before sound absorption treatment, the sound absorption coefficient of a typical indoor space is very small, and the sound absorption and noise reduction amount is as follows: in, A1 is the average sound absorption coefficient of the room before treatment; A2 is the total sound absorption of the room before treatment, in m³. 2 T1 is the reverberation time of the room before processing, in seconds. A1 is the average sound absorption coefficient of the room after treatment; A2 is the total sound absorption of the room after treatment, in m³. 2 T2 represents the reverberation time of the treated room, measured in seconds. Based on the aforementioned acoustic spectrum characteristics of the compressor, a dedicated composite sound-absorbing and sound-insulating body 2 is designed.
[0050] In the above scheme, the composite sound-absorbing and sound-insulating body 2 is installed on the side wall of the computer room. The composite sound-absorbing and sound-insulating body 2 is formed by multiple sound insulation layers. The composite sound-absorbing and sound-insulating body 2 is used to reduce the noise inside the computer room. Specifically, the composite sound-absorbing and sound-insulating body 2 includes a galvanized perforated steel plate, an alkali-free water-repellent glass cloth, a glass fiber cotton, an alkali-free water-repellent glass cloth, a rubber damping plate, and a galvanized steel plate arranged in sequence. The galvanized steel plate is in contact and fixed to the side wall of the computer room. The galvanized perforated steel plate is 2mm ± 0.2mm thick, with a micropore diameter of 1.5mm ± 0.2mm and a perforation rate of ≥ 30%. Its outer surface is coated with PVC powder coating with a thickness of 120μm ± 0.2μm. The glass fiber cotton is 50mm ± 0.2mm thick and has a density of 27 ± 0.5kg / m3. The rubber damping plate is 6mm ± 0.2mm thick and is tightly adhered to the galvanized steel plate with structural adhesive. The galvanized steel plate is 2mm ± 0.2mm thick. The composite sound-absorbing and sound-insulating body 2 has a sound insulation of 35dB±1dB and a sound absorption coefficient of 0.90±0.1.
[0051] In practical applications, the sound absorption area for noise reduction should ideally be 25% to 50% of the sum of the surface areas of the four walls, the roof, and the floor of the computer room. Considering the economic efficiency and a noise reduction of 7 dB(A), in this embodiment, the composite sound-absorbing and sound-insulating body 2 is installed on the four walls of the computer room, with a distance of 200 mm ± 2 mm between it and the walls. Its sound absorption area is 36% of the total area. Relying on the rigid structure of the computer room, vibration-damping joists are installed on the entire surface of the walls where the composite sound-absorbing and sound-insulating body 2 is installed, further reducing the penetration of low-frequency noise. In one embodiment, the composite sound-absorbing and sound-insulating body 2 is located from 0.1 m above the floor to 0.2 m below the top of the wall. The upper perimeter of the composite sound-absorbing and sound-insulating body 2 is flush, and the openings for installation and fixing of the composite sound-absorbing and sound-insulating body 2 should avoid existing lighting, pipelines, equipment, etc., on the wall. Based on the above structure, the composite sound-absorbing and sound-insulating body 2 absorbs the main reverberation sound in the room and reduces the noise intensity in the room. The composite structure of "composite sound-absorbing and sound-insulating body 2 + vibration damping keel + cavity + original wall" has a sound insulation of 39dB as measured by a noise laboratory.
[0052] The commonly used ventilation methods currently available are mostly as follows: 1. Fixed louvers as air inlets, but the air intake area of fixed louvers is too small; 2. The louver air inlet and the exhaust fan are located on the same side of the wall. This arrangement causes outdoor air to enter through the louvers without flowing through the compressor area, thus failing to effectively remove indoor heat and harmful gases; 3. The exhaust fan is located above the roof. This arrangement results in insufficient airflow through the area opposite the louvers, leading to poor heat dissipation in some areas; 4. Only the open door is used as a ventilation opening. However, this arrangement causes noise from the compressor room to be directly transmitted to the site and outside the perimeter wall, increasing the noise intensity experienced by personnel and also increasing the amount of environmental noise exceeding standards.
[0053] Therefore, in order to effectively ventilate and dissipate heat in the computer room, the preferred solution is as follows: Figure 4 and Figure 5 As shown, the exhaust fan assembly 30 includes multiple wall-mounted exhaust fans 300 and at least two roof-mounted exhaust fans 301. The exhaust silencer assembly 31 includes a wall-mounted exhaust silencer 310 and a roof-mounted exhaust silencer 311. The wall-mounted exhaust silencers 310 are configured corresponding to the wall-mounted exhaust fans 300, and the roof-mounted exhaust silencers 311 are configured corresponding to the roof-mounted exhaust fans 301. The power of the wall-mounted exhaust fans 300 and the roof-mounted exhaust fans 301 can be 1.1 kW. The number of wall-mounted exhaust fans 300 can be four, and the number of roof-mounted exhaust fans 301 can be two. The wall-mounted exhaust silencer 310 has dimensions of 0.8m ± 0.01m in length, 0.55m ± 0.01m in width, and 3m ± 0.01m in height, with a noise reduction of 30dB ± 1dB and an installation center height of 5.5m ± 0.01m; the roof-mounted exhaust silencer 311 has a noise reduction of 20dB ± 1dB.
[0054] To reduce the noise of exhaust device 3, such as Figure 4 As shown, the exhaust device 3 further includes an intake silencer 32 and a duct fan 33. The intake silencer 32 is used to reduce noise when air enters the machine room. A natural gas compressor 5 is installed in the machine room. The intake silencer 32 is located below the opposite wall of the wall in the machine room where multiple wall-mounted exhaust fans 300 are installed. The duct fan 33 is located between the intake silencer 32 and the natural gas compressor 5. The duct fan 33 is used to accelerate the heat exchange between the cold air and the natural gas compressor 5, and to guide the indoor airflow towards the exhaust fan assembly 30, following the direction of the indoor airflow. The intake silencer 32 is located below one side wall. In one embodiment, the dimensions of the intake silencer 32 can be 4m ± 0.01m in length, 2m ± 0.01m in width, and 2.5m ± 0.01m in height, with an effective air intake area of 4.5m². 2±0.1m 2 The noise reduction is 30dB±1dB.
[0055] like Figure 6 and Figure 7 As shown, outdoor air enters the compressor room through the intake silencer 32 located below one wall. After heat exchange, the airflow is discharged through the wall exhaust fan 300 and the roof exhaust fan 301. The duct fan 33 directs airflow towards the cylinder of the natural gas compressor 5, accelerating the heat exchange between the cold airflow and the compressor while guiding the indoor airflow towards the exhaust direction. In practical applications, the ventilation rate can be determined by calculating the heat generated by the natural gas compressor 5, as well as the air intake and exhaust volumes of the computer room. In this embodiment, taking a computer room with 11 800kW natural gas compressors, a length of 14m, a width of 11m, and a height of 7m as an example, the indoor ventilation rate can be 6 to 36 times / hour.
[0056] The above solution mentions that the high-performance soundproof door 1 is used to reduce noise propagating outward from the computer room, such as... Figure 5 and Figure 7 As shown, the high-performance soundproof door 1 includes a large soundproof door 10 and a small soundproof door 11. The electronic control device 4 is installed on the wall next to the high-performance soundproof door 1. The large soundproof door 10 is a double-leaf swing door, and the small soundproof door 11 is a single-leaf swing door. The sound insulation Rw of the large soundproof door 10 and the small soundproof door 11 is 40dB±1dB. The small door of the large soundproof door 10 has a width of 0.9m±0.01m and a height of 2.0m±0.01m, facilitating personnel access. The small soundproof door 11 is a swing door with a width of 0.9m±0.01m and a height of 2.0m±0.01m. The large soundproof door 10 and the small soundproof door 11 can be arranged opposite each other.
[0057] Based on the above structure, in one embodiment, the layout of the plurality of wall exhaust fans 300 and wall exhaust silencers 310 can be referred to Figure 4 and Figure 5 As shown, if there are four wall exhaust fans 300 and four wall exhaust silencers 310, three sets of wall exhaust fans 300 and wall exhaust silencers 310 can be installed on the wall on the same side as the soundproof door 10, and one set of wall exhaust fans 300 and wall exhaust silencers 310 can be installed on the wall next to the soundproof door 10. The wall exhaust fan 300 is located on the opposite side of the air inlet silencer 32, and the natural gas compressor 5 is located between the wall exhaust fan 300 and the air inlet silencer 32, so that the airflow direction in the machine room passes through the natural gas compressor 5, carrying away the heat of the compressor cylinder.
[0058] To achieve the development plan of unattended, fully automated production, this embodiment includes an electronic control device 4, wherein, for example... Figure 8 As shown, a temperature sensor (not shown in the figure) is also installed in the machine room. The temperature sensor is installed next to the ventilation opening of the wall exhaust fan 300. When the air temperature at the ventilation opening of the wall exhaust fan 300 is ≥35℃, the wall exhaust fan 300 and the roof exhaust fan 301 will automatically start. When the air temperature at the ventilation opening of the wall exhaust fan 300 is <32℃, the wall exhaust fan 300 and the roof exhaust fan 301 will automatically stop.
[0059] According to the ventilation and noise reduction solution provided in this embodiment, the noise intensity in the computer room was 98.3 dB(A) before treatment and 88.9 dB(A) after treatment, a reduction of 9.4 dB(A). This effectively reduces the noise intensity in the computer room to a certain extent and mitigates the health hazards of noise to personnel on duty.
[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An automatic ventilation and noise reduction system for a natural gas compressor room, characterized in that, include: High-performance soundproof door (1), composite sound-absorbing and sound-insulating body (2), exhaust device (3) and electrical control device (4); The high-performance soundproof door (1) is rotatably connected to the side wall of the computer room to reduce noise propagating outward from the computer room; The composite sound-absorbing and sound-insulating body (2) is installed around the walls of the computer room. The composite sound-absorbing and sound-insulating body (2) is formed by multiple layers of sound insulation. The composite sound-absorbing and sound-insulating body (2) is used to reduce the noise inside the computer room. The exhaust device (3) includes an exhaust fan assembly (30) and an exhaust silencer assembly (31). The exhaust fan assembly (30) is fixedly installed on the wall of the machine room. The electrical control device (4) is installed on the wall next to the high-performance soundproof door (1). The control terminal of the electrical control device (4) is connected to the exhaust fan assembly (30) and the exhaust silencer assembly (31) respectively. The exhaust silencer assembly (31) is used to reduce the noise when the exhaust fan assembly (30) exhausts air to the outside.
2. The automatic ventilation and noise reduction system for a natural gas compressor room according to claim 1, characterized in that, The exhaust fan assembly (30) includes a plurality of wall exhaust fans (300) and at least two roof exhaust fans (301), and the exhaust silencer assembly (31) includes a wall exhaust silencer (310) and a roof exhaust silencer (311), wherein the wall exhaust silencer (310) is provided corresponding to the wall exhaust fan (300) and the roof exhaust silencer (311) is provided corresponding to the roof exhaust fan (301).
3. The automatic ventilation and noise reduction system for a natural gas compressor room according to claim 2, characterized in that, The high-performance soundproof door (1) includes a soundproof door (10) and a soundproof door (11). The electronic control device (4) is installed on the side wall of the soundproof door (10). The soundproof door (10) is a double-opening swing type, and the soundproof door (11) is a single-opening swing type. The sound insulation Rw of the soundproof door (10) and the soundproof door (11) is 40dB±1dB.
4. The automatic ventilation and noise reduction system for a natural gas compressor room according to claim 3, characterized in that, A temperature sensor is also installed in the machine room, next to the ventilation opening of the wall exhaust fan (300).
5. The automatic ventilation and noise reduction system for a natural gas compressor room according to claim 2, characterized in that, The exhaust device (3) further includes an air inlet silencer (32) and a duct fan (33). The air inlet silencer (32) is used to reduce noise when air enters the machine room. A natural gas compressor (5) is installed in the machine room. The air inlet silencer (32) is located below the opposite wall of the wall in the machine room where multiple wall exhaust fans (300) are installed. The duct fan (33) is located between the air inlet silencer (32) and the natural gas compressor (5).
6. The automatic ventilation and noise reduction system for a natural gas compressor room according to claim 5, characterized in that, The effective air intake area of the air intake silencer (32) is 4.5m². 2 ±0.1m 2 The noise reduction is 30dB±1dB.
7. The automatic ventilation and noise reduction system for a natural gas compressor room according to claim 2, characterized in that, The wall-mounted exhaust silencer (310) has a noise reduction of 30dB±1dB, and the roof exhaust silencer (311) has a noise reduction of 20dB±1dB.
8. The automatic ventilation and noise reduction system for a natural gas compressor room according to any one of claims 1-7, characterized in that, The composite sound-absorbing and sound-insulating body (2) includes a galvanized perforated steel plate, an alkali-free water-repellent glass cloth, glass fiber cotton, an alkali-free water-repellent glass cloth, a rubber damping plate and a galvanized steel plate arranged in sequence, wherein the galvanized steel plate is in contact with and fixed to the side wall of the machine room; The galvanized perforated steel plate is 2mm ± 0.2mm thick, with a micropore diameter of 1.5mm ± 0.2mm and a perforation rate of ≥ 30%. Its outer surface is coated with PVC powder coating, with a powder coating thickness of 120μm ± 0.2μm. The glass fiber cotton is 50mm ± 0.2mm thick and has a density of 27 ± 0.5kg / m3. The rubber damping plate is 6mm ± 0.2mm thick and is tightly adhered to the galvanized steel plate with structural adhesive. The galvanized steel plate is 2mm ± 0.2mm thick.
9. The automatic ventilation and noise reduction system for a natural gas compressor room according to any one of claims 1-7, characterized in that, The sound insulation of the composite sound-absorbing and sound-insulating body (2) is 35dB±1dB, and the sound absorption coefficient is 0.90±0.
1.
10. The automatic ventilation and noise reduction system for a natural gas compressor room according to any one of claims 1-7, characterized in that, The composite sound-absorbing and sound-insulating body (2) is installed on the four walls of the machine room, and the distance between the composite sound-absorbing and sound-insulating body (2) and the wall of the machine room is 200mm±2mm.