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液壓泵站的流體噪聲是怎么産生的？

液壓泵站的流體噪聲是怎么産生的呢？又有什么方法可以控制流體噪聲的産生呢？

在液壓系統(tǒng) 中，流體噪聲占相當(dāng)大的比例。這種噪聲是由于油液的流速、壓力的突然變化以及氣穴等原因引起的。 液壓泵的流體噪聲主要是由泵的壓力、流量的周期性變化以及氣穴現(xiàn)象引起的。在液壓泵的吸油和壓油循環(huán)中，産生周期性的壓力和流量變化，形成壓力脈動(dòng)，從而引起液壓振動(dòng)，并經(jīng)出口向整個(gè)系統(tǒng)傳播。同時(shí)液壓回路的管道和閥類將液壓泵的壓力反射，在回路中産生波動(dòng)，使泵産生共振，發(fā)出噪聲。

另一方面，液壓系統(tǒng)中(指開式回路)溶解了大約5%的空氣。當(dāng)系統(tǒng)中的壓力因某種原因而低于空氣分離壓時(shí)，其中溶解于油中的氣體就迅速地大量分離出來，形成氣泡，這些氣泡遇到高壓便被壓破，産生較強(qiáng)的液壓沖擊。對于前者的控制辦法，設(shè)計(jì)時(shí)齒輪模數(shù)盡量取小，齒數(shù)盡量取多，缺載槽的形狀和尺寸要合理，柱塞泵的柱塞個(gè)數(shù)應(yīng)爲(wèi)奇數(shù)，最好爲(wèi)7-9個(gè)，并在進(jìn)、排油配流盤上對稱開上三角槽，以防柱塞泵的困油。

因此，降低液壓系統(tǒng)噪聲的措施，減少噪聲，必須對噪聲源進(jìn)行實(shí)際調(diào)查，測量分析液壓系統(tǒng)的聲壓級(jí)，進(jìn)行頻率分析，從而掌握噪聲源的大小及頻率特性，采取相應(yīng)辦法:

1)使用低噪聲電機(jī)，并使用彈性聯(lián)軸器，以減少該環(huán)節(jié)引起的振動(dòng)和噪聲;

2)液壓泵和液壓閥的安裝面上應(yīng)設(shè)置防振膠墊;

3)盡量用液壓集成塊代替管道，以減少振動(dòng);

4)用蓄能器和橡膠軟管減少由壓力脈動(dòng)引起的振動(dòng)，蓄能器能吸收10Hz以下的噪聲，而高頻噪聲，用液壓軟管則十分有效;

5)用帶有吸聲材料的隔聲罩，將液壓油泵罩上也能有效地降低噪聲;

6)系統(tǒng)中應(yīng)設(shè)置放氣裝置。

電磁換向閥：
4WE-10A/E-G24-20 4WE-10A/E-W110-20 4WE-10A/E-W220-20 4WE-10A/E-W240-20 4WE-10B/E-G24-20 4WE-10B/E-W110-20
4WE-10B/E-W220-20 4WE-10B/E-W240-20 4WE-10C/E-G24-20 4WE-10C/E-W110-20 4WE-10C/E-W220-20 4WE-10C/E-W240-20
4WE-10D/E-G24-20 4WE-10D/E-W110-20 4WE-10D/E-W220-20 4WE-10D/E-W240-20 4WE-10E/E-G12-20 4WE-10E/E-W110-20
4WE-10E/E-W240-20 4WE-10F/E-G12-20 4WE-10F/E-W110-20 4WE-10F/E-W240-20 4WE-10G/E-G12-20 4WE-10G/E-W110-20
4WE-10G/E-W240-20 4WE-10P/E-W240-20 4WE-10V/E-W240-20 4WE-6-A/E-G12-20 4WE-6-A/E-G24-20 4WE-6-A/E-W110-20
4WE-6-A/E-W220-20 4WE-6-A/E-W240-20 4WE-6-AO/E-G12-20 4WE-6-AO/E-G24-20 4WE-6-AO/E-W110-20
4WE-6-AO/E-W220-20 4WE-6-AO/E-W240-20 4WE-6-AOF/E-G12-20 4WE-6-AOF/E-G24-20 4WE-6-AOF/E-W110-20
4WE-6-AOF/E-W220-20 4WE-6-AOF/E-W240-20 4WE-6-B/E-G12-20 4WE-6-B/E-G24-20 4WE-6-B/E-W110-20 4WE-6-B/E-W220-20
4WE-6-B/E-W240-20 4WE-6-BO/E-G12-20 4WE-6-BO/E-G24-20 4WE-6-BO/E-W110-20 4WE-6-BO/E-W220-20
4WE-6-BO/E-W240-20 4WE-6-BOF/E-G12-20 4WE-6-BOF/E-G24-20 4WE-6-BOF/E-W110-20 4WE-6-BOF/E-W220-20
4WE-6-BOF/E-W240-20 4WE-6-C/E-G12-20 4WE-6-C/E-G24-20 4WE-6-C/E-W110-20 4WE-6-C/E-W220-20 4WE-6-C/E-W240-20
4WE-6-CO/E-G12-20 4WE-6-CO/E-G24-20 4WE-6-CO/E-W110-20 4WE-6-CO/E-W220-20 4WE-6-CO/E-W240-20
4WE-6-COF/E-G12-20 4WE-6-COF/E-G24-20 4WE-6-COF/E-W110-20 4WE-6-COF/E-W220-20 4WE-6-COF/E-W240-20
4WE-6-D/E-G12-20 4WE-6-D/E-G24-20 4WE-6-D/E-W110-20 4WE-6-D/E-W220-20 4WE-6-D/E-W240-20 4WE-6-DO/E-G12-20
4WE-6-DO/E-G24-20 4WE-6-DO/E-W110-20 4WE-6-DO/E-W220-20 4WE-6-DO/E-W240-20 4WE-6-DOF/E-G12-20
4WE-6-DOF/E-G24-20 4WE-6-DOF/E-W110-20 4WE-6-DOF/E-W220-20 4WE-6-DOF/E-W240-20 4WE-6-E/E-G12-20
4WE-6-E/E-G24-20 4WE-6-E/E-W110-20 4WE-6-E/E-W220-20 4WE-6-E/E-W240-20 4WE-6-EO/E-G12-20 4WE-6-EO/E-G24-20
4WE-6-EO/E-W110-20 4WE-6-EO/E-W240-20 4WE-6-EOF/E-G12-20 4WE-6-EOF/E-G24-20 4WE-6-EOF/E-W110-20
4WE-6-EOF/E-W220-20 4WE-6-EOF/E-W240-20 4WE-6-F/E-G12-20 4WE-6-F/E-G24-20 4WE-6-F/E-W110-20 4WE-6-F/E-W220-20
4WE-6-F/E-W240-20 4WE-6-FO/E-G12-20 4WE-6-FO/E-G24-20 4WE-6-FO/E-W110-20 4WE-6-FO/E-W220-20
4WE-6-FO/E-W240-20 4WE-6-FOF/E-G12-20 4WE-6-FOF/E-G24-20 4WE-6-FOF/E-W110-20 4WE-6-FOF/E-W220-20
4WE-6-FOF/E-W240-20 4WE-6-G/E-G12-20 4WE-6-G/E-G24-20 4WE-6-G/E-W110-20 4WE-6G/E-W220/50-20 4WE-6-G/E-W220-20
4WE-6-G/E-W240-20 4WE-6-GO/E-G12-20 4WE-6-GO/E-G24-20 4WE-6-GO/E-W110-20 4WE-6-GO/E-W220-20
4WE-6-GO/E-W240-20 4WE-6-GOF/E-G12-20 4WE-6-GOF/E-G24-20 4WE-6-GOF/E-W110-20 4WE-6-GOF/E-W220-20
4WE-6-GOF/E-W240-20 4WE-6-H/E-G12-20 4WE-6-H/E-G24-20 4WE-6-H/E-W110-20 4WE-6-H/E-W220-20 4WE-6-H/E-W240-20
4WE-6-HA/E-W240-20 4WE-6-HO/E-G12-20 4WE-6-HO/E-G24-20 4WE-6-HO/E-W110-20 4WE-6-HO/E-W220-20
4WE-6-HO/E-W240-20 4WE-6-HOF/E-G12-20 4WE-6-HOF/E-G24-20 4WE-6-HOF/E-W110-20 4WE-6-HOF/E-W220-20
4WE-6-HOF/E-W240-20 4WE-6-J/E-G12-20 4WE-6-J/E-G24-20 4WE-6-J/E-W110-20 4WE-6-J/E-W220/50-20 4WE-6-J/E-W220-20
4WE-6-J/E-W240-20 4WE-6-JO/E-G12-20 4WE-6-JO/E-G24-20 4WE-6-JO/E-W110-20 4WE-6-JO/E-W220-20
4WE-6-JO/E-W240-20 4WE-6-JOF/E-G12-20 4WE-6-JOF/E-G24-20 4WE-6-JOF/E-W110-20 4WE-6-JOF/E-W220-20
4WE-6-JOF/E-W240-20 4WE-6-L/E-G12-20 4WE-6-L/E-G24-20 4WE-6-L/E-W110-20 4WE-6-L/E-W220-20 4WE-6-L/E-W240-20
4WE-6-LO/E-G12-20 4WE-6-LO/E-G24-20 4WE-6-LO/E-W110-20 4WE-6-LO/E-W220-20 4WE-6-LO/E-W240-20
4WE-6-LOF/E-G12-20 4WE-6-LOF/E-G24-20 4WE-6-LOF/E-W110-20 4WE-6-LOF/E-W220-20 4WE-6-LOF/E-W240-20
4WE-6-M/E-G12-20 4WE-6-M/E-G24-20 4WE-6-M/E-W110-20 4WE-6-M/E-W220-20 4WE-6-M/E-W240-20 4WE-6-MO/E-G12-20
4WE-6-MO/E-G24-20 4WE-6-MO/E-W110-20 4WE-6-MO/E-W220-20 4WE-6-MO/E-W240-20 4WE-6-MOF/E-G12-20
4WE-6-MOF/E-G24-20 4WE-6-MOF/E-W110-20 4WE-6-MOF/E-W220-20 4WE-6-MOF/E-W240-20 4WE-6-P/E-G12-20
4WE-6-P/E-G24-20 4WE-6-P/E-W110-20 4WE-6-P/E-W220-20 4WE-6-P/E-W240-20 4WE-6-PO/E-G12-20 4WE-6-PO/E-G24-20
4WE-6-PO/E-W110-20 4WE-6-PO/E-W220-20 4WE-6-PO/E-W240-20 4WE-6-POF/E-G12-20 4WE-6-POF/E-G24-20
4WE-6-POF/E-W110-20 4WE-6-POF/E-W220-20 4WE-6-POF/E-W240-20 4WE-6-Q/E-G12-20 4WE-6-Q/E-G24-20
4WE-6-Q/E-W110-20 4WE-6-Q/E-W220-20 4WE-6-Q/E-W240-20 4WE-6-QO/E-G12-20 4WE-6-QO/E-G24-20
4WE-6-QO/E-W110-20 4WE-6-QO/E-W220-20 4WE-6-QO/E-W240-20 4WE-6-R/E-G12-20 4WE-6-R/E-G24-20 4WE-6-R/E-W110-20
4WE-6-R/E-W220-20 4WE-6-R/E-W240-20 4WE-6-RO/E-G12-20 4WE-6-RO/E-G24-20 4WE-6-RO/E-W110-20 4WE-6-RO/E-W220-20
4WE-6-RO/E-W240-20 4WE-6-ROF/E-G12-20 4WE-6-ROF/E-G24-20 4WE-6-ROF/E-W110-20 4WE-6-ROF/E-W220-20
4WE-6-ROF/E-W240-20 4WE-6-T/E-G12-20 4WE-6-T/E-G24-20 4WE-6-T/E-W110-20 4WE-6-T/E-W220-20 4WE-6-T/E-W240-20
4WE-6-TO/E-G12-20 4WE-6-TO/E-G24-20 4WE-6-TO/E-W110-20 4WE-6-TO/E-W220-20 4WE-6-TO/E-W240-20
4WE-6-TOF/E-G12-20 4WE-6-TOF/E-G24-20 4WE-6-TOF/E-W110-20 4WE-6-TOF/E-W220-20 4WE-6-TOF/E-W240-20
4WE-6-U/E-G12-20 4WE-6-U/E-G24-20 4WE-6-U/E-W110-20 4WE-6-U/E-W220-20 4WE-6-U/E-W240-20 4WE-6-UO/E-G12-20
4WE-6-UO/E-G24-20 4WE-6-UO/E-W110-20 4WE-6-UO/E-W220-20 4WE-6-UO/E-W240-20 4WE-6-UOF/E-G12-20
4WE-6-UOF/E-G24-20 4WE-6-UOF/E-W110-20 4WE-6-UOF/E-W220-20 4WE-6-UOF/E-W240-20 4WE-6-V/E-G12-20
4WE-6-V/E-G24-20 4WE-6-V/E-W110-20 4WE-6-V/E-W220-20 4WE-6-V/E-W240-20 4WE-6-VO/E-G12-20 4WE-6-VO/E-G24-20
4WE-6-VO/E-W110-20 4WE-6-VO/E-W220-20 4WE-6-VO/E-W240-20 4WE-6-VOF/E-G12-20 4WE-6-VOF/E-G24-20
4WE-6-VOF/E-W110-20 4WE-6-VOF/E-W220-20 4WE-6-VOF/E-W240-20 4WE-6-Y/E-G12-20 4WE-6-Y/E-G24-20
4WE-6-Y/E-W110-20 4WE-6-Y/E-W220-20 4WE-6-Y/E-W240-20 4WE-6-YO/E-G12-20 4WE-6-YO/E-G24-20 4WE-6-YO/E-W110-20
4WE-6-YO/E-W220-20 4WE-6-YO/E-W240-20 4WE-6-YOF/E-G12-20 4WE-6-YOF/E-G24-20 4WE-6-YOF/E-W110-20
4WE-6-YOF/E-W220-20 4WE-6-YOF/E-W240-20 4WE-Q-QOF/E-G12-20 4WE-Q-QOF/E-G24-20 4WE-Q-QOF/E-W110-20
4WE-6-QOF/E-W220-20 4WE-Q-QOF/E-W240-20
液控方向閥：
DHG-04-2B2-ET-50-W110-10-AB-K DHG-04-2B2-ET-50-W240-10-AB-K DHG-04-2B3-ET-50-W110-10-AB-K
DHG-04-2B3-ET-50-W240-10-AB-K DHG-04-2D2-ET-50-W110-10-AB-K DHG-04-2D2-ET-50-W240-10-AB-K
DHG-04-2D3-ET-50-W110-10-AB-K DHG-04-2D3-ET-50-W240-10-AB-K DHG-04-3C2-ET-50-W110-10-AB-K
DHG-04-3C2-ET-50-W240-10-AB-K DHG-04-3C3-ET-50-W110-10-AB-K DHG-04-3C3-ET-50-W240-10-AB-K
DHG-04-3C4-ET-50-W110-10-AB-K DHG-04-3C4-ET-50-W240-10-AB-K DHG-04-3C5-ET-50-W110-10-AB-K
DHG-04-3C5-ET-50-W240-10-AB-K DHG-04-3C6-ET-50-W110-10-AB-K DHG-04-3C6-ET-50-W240-10-AB-K 
DHG-04-2B10B DHG-04-2B11A DHG-04-2B11B DHG-04-2B12A DHG-04-2B12B DHG-04-2B2 DHG-04-2B2A
DHG-04-2B2B DHG-04-2B2-ET-50-W110-10-AB-K DHG-04-2B2-ET-50-W240-10-AB-K DHG-04-2B2S DHG-04-2B3
DHG-04-2B3A DHG-04-2B3B DHG-04-2B3-ET-50-W110-10-AB-K DHG-04-2B3-ET-50-W240-10-AB-K DHG-04-2B3S
DHG-04-2B40A DHG-04-2B40B DHG-04-2B4A DHG-04-2B4B DHG-04-2B5A DHG-04-2B5B DHG-04-2B60A DHG-04-2B60B
DHG-04-2B6A DHG-04-2B6B DHG-04-2B8 DHG-04-2B8S DHG-04-2B9A DHG-04-2B9B DHG-04-2D2-ET-50-W110-10-AB-K
DHG-04-2D2-ET-50-W240-10-AB-K DHG-04-2D3-ET-50-W110-10-AB-K DHG-04-2D3-ET-50-W240-10-AB-K
DHG-04-2N2 DHG-04-2N3 DHG-04-3C10-50 DHG-04-3C11-50 DHG-04-3C12-50 DHG-04-3C2 DHG-04-3C2-50
DHG-04-3C2-ET-50-W110-10-AB-K DHG-04-3C2-ET-50-W240-10-AB-K DHG-04-3C3-50 DHG-04-3C3-ET-50-W110-10-AB-K
DHG-04-3C3-ET-50-W240-10-AB-K DHG-04-3C40-50 DHG-04-3C4-50 DHG-04-3C4-ET-50-W110-10-AB-K
DHG-04-3C4-ET-50-W240-10-AB-K DHG-04-3C5-50 DHG-04-3C5-ET-50-W110-10-AB-K DHG-04-3C5-ET-50-W240-10-AB-K
DHG-04-3C60-50 DHG-04-3C6-50 DHG-04-3C6-ET-50-W110-10-AB-K DHG-04-3C6-ET-50-W240-10-AB-K DHG-04-3C9-50
DHG-06-2B10B DHG-06-2B11A DHG-06-2B11B DHG-06-2B12A DHG-06-2B12B DHG-06-2B2 DHG-06-2B2A
DHG-06-2B2B DHG-06-2B2S DHG-06-2B3 DHG-06-2B3A DHG-06-2B3B DHG-06-2B3S DHG-06-2B40A DHG-06-2B40B
DHG-06-2B4A DHG-06-2B4B DHG-06-2B5A DHG-06-2B5B DHG-06-2B60A DHG-06-2B60B DHG-06-2B6A DHG-06-2B6B
DHG-06-2B8 DHG-06-2B8S DHG-06-2B9A DHG-06-2B9B DHG-06-2N2 DHG-06-2N3 DHG-06-3C10-50 DHG-06-3C11-50
DHG-06-3C12-50 DHG-06-3C2-50 DHG-06-3C3-50 DHG-06-3C40-50 DHG-06-3C4-50 DHG-06-3C5-50 DHG-06-3C60-50
DHG-06-3C6-50 DHG-06-3C9-50 DHG-10-2B10B DHG-10-2B11B DHG-10-2B12B DHG-10-2B2B DHG-10-2B3B
DHG-10-2B40B DHG-10-2B4B DHG-10-2B5B DHG-10-2B60B DHG-10-2B6B DHG-10-2B9B DHG-10-2N2 DHG-10-2N3
DHG-10-3C10-50 DHG-10-3C11-50 DHG-10-3C12-50 DHG-10-3C2-50 DHG-10-3C3-50 DHG-10-3C40-50 DHG-10-3C4-50
DHG-10-3C5-50 DHG-10-3C60-50 DHG-10-3C6-50 DHG-10-3C9-50
S-DSHG-10-3H60A220 S-DSHG-10-3H60-A220 S-DSHG-10-3H60-E-D24
抗衡閥：
J-CBEA-1-L J-PBC-A-L J-PBC-B-L J-PBC-D-L J-PBE-A-L J-PBE-B-L J-PBE-D-L J-PBG-A-L J-PBG-B-L J-PBG-D-L
溢流閥：
MRV-02-A-1-A-K MRV-02-A-1-B-K MRV-02-B-1-A-K MRV-02-B-1-B-K MRV-02-B-2-B MRV-02-P-1-A-K MRV-02-P-1-B
MRV-02-P-1-B-K MRV-02-P-3-B MRV-03-A-2-B-K MRV-03-A-2-B-L MRV-03-B-2-B-K MRV-03-B-2-B-L MRV-03-B-3-B
MRV-03-P-2-B-K MRV-03-P-2-B-L MRV-03-P-3-B MSCV-03-A-3-B
電磁控制溢流閥：
SBSG-03-1PN-1-L-30-10 SBSG-03-1PN-1-R-30-10 SBSG-03-1PN-2-L-30-10 SBSG-03-1PN-2-R-30-10 SBSG-03-1PN-3-L-30-10
SBSG-03-1PN-3-R-30-10 SBSG-06-1PN-1-L-30-10 SBSG-06-1PN-1-R-30-10 SBSG-06-1PN-2-L-30-10 SBSG-06-1PN-2-R-30-10
SBSG-06-1PN-3-L-30-10 SBSG-06-1PN-3-R-30-10 SBSG-10-1PN-1-L-30-10 SBSG-10-1PN-1-R-30-10 SBSG-10-1PN-2-L-30-10
SBSG-10-1PN-2-R-30-10 SBSG-10-1PN-3-L-30-10 SBSG-10-1PN-3-R-30-10