压力容器水压试验

1 HYDROSTATIC PRESSURE TEST PROCEDURE

水压试验程序

1. General概述

1.1 All completed vessels fabricated in accordance with GB150-1998 shall

satisfactorily pass pressure test.

按GB150-1998?钢制压力容器?要求制造的压力容器在完成后应水压试验合格。

1.2 A hydrostatic test shall be conducted on all vessels after all fabrication has

been completed, except for operation which could not be performed prior to

the test such as weld and preparation, cosmetic grinding on the base

material which does not affect the required thickness.

除了不能预先进行的焊缝外表、母材外表上不影响要求的厚度的外观打磨处理，水压试验必须在容器制造完毕，总体检查合格后进行。

除了焊接、准备工作以及在母材外表进行的不影响要求厚度的外观打磨处理不能预先进行之外，水压试验必须在容器制造完毕后进行。

1.3 A hydrostatic test shall be conducted on all vessels after all examinations

have been performed, except those required after the test.

压力容器必须全部制造完成并经检查合格后，方可进行水压试验。

2. All hydrostatic test process shall conform to the requirements of

GB150-1998 and the requirements of SUPERVISION REGULATIONS ON

SAFETY TECHNOLOGY OF PRESSURE VESSEL

水压试验程序应符合GB150-1998?钢制压力容器?和?压力容器平安技术监察规程?的要求。 .实用文档.

. 3. Pressure indicating gages used in the pressure test must be in

accordance with the following requirements:

水压试验用压力表不许符合以下要求：

3.1 Pressure indicating gage shall be connected directly to the vessel. If the

indicating gage is not readily visible to the operator controlling the pressure

applied, an additional indicating gage shall be provided where it is visible

to the operator throughout the duration of the test.

压力表不许直接与容器连接。如果容器上设置的压力表不能被压力控制操作人员很容易的看到，那么应在操作者能够明显清晰的部位增加一个压力表，以便于进行全过程的压力控制。

3.2 Pressure indicating gages used in testing shall have a range over about

double the intended maximum test pressure, but in no case shall the range

be less than 1.5 nor more than 3 times test pressure.

压力表的量程一般应为最大试验压力的2倍，在任何情况下都不能超过试验压力的1.5~3倍。压力表量程不得少于试验压力的1.5倍，不得高于试验压力的3倍。

3.3 All gages shall be calibrated against a standard dead weight tester or a

calibrated master gage. Gages shall be recalibrated at any time when there

is reason to believe that they are in error. The gages shall be used within the

effective period of six months.

所有试验用的压力表应采用压力表试验器或经校准的校准用精密仪表进行校验。无论何时发现试验用的压力表存在问题，都应重新进行校验。压力表校验合格后的使用有效期为6个月。

3.4 All reinforcing pad weld shall be tested by airtight test and no leakage be

found form any joints. The value of airtight shall be between Pa and Pa. .实用文档.

. 容器上的补强圈应通入0.4~0.5 MPa的压缩空气对所有焊缝连接部位进行气密性检查合格。

4. Preparation for Testing 试验准备

4.1 Vents shall be provided at all high points of the vessel in the position in

which it is to be tested to purge possible air pockets while the vessel is

being filled.

容器顶部所有高点都应设置排气口，以便于充水过程中将容器内部的空气排放干净。

4.2 Prior to hydrostatic pressure test, the inside and outside of the vessel should

give a good cleaning to remove oil, grease, paint and other dirt. The

examined area of the inside and outside of the vessel shall be kept clean,

without any dirt which infects the test. The surface must be dried. Internal

Inspection Report should be submitted for approve.

水压试验前，容器内、外应清理干净，去除所有的油污、铁锈等污垢。试验过程中所有试验范围内的容器内、外外表应保持干净，没有影响试验的污物。容器的外外表必须保持枯燥。容器内部检查报告应提交批准。

4.3 Before applying pressure, the test equipment shall be examined to see that

it is tight and that all low pressure filling lines and other appurtenances that

should not be subjected to the test pressure has been disconnected.

水压试验前，应检查试验设备是否连接紧固，检查所有不属于试验系统的低压填充物及其它附属物是否已经别离。

4.4 Before applying pressure, the temperature of the test medium and the wall

temperature of the vessel shall be measured with the thermometer. The test

pressure shall be applied after the vessel and its contents are at about the .实用文档.

. same temperature.

水压试验前，应采用温度计测量试验液体和容器器壁的温度。当容器壁温与试验液体温度一致时，方可对容器进行加压。

4.5 During testing the temperature of the vessel and test medium shall not be

lower than 5℃ nor more than 40℃.

水压试验期间，容器器壁和试验液体的温度应控制在5~40℃之间。

4.6 Temperature record shall measure the test medium temperature not the air

temperature. Hydro testing water shall be clean, fresh water.

温度应测量试验液体的温度而非气温。试验液体应是干净、新鲜的水。

4.7 The reinforcement plates outside the vessels and the weld of the connecting

pipe shall pass the leak testing before doing pressure test.

水压试验前，容器的补强圈与容器壳体、接管的焊缝应经气密性检查合格。

4.8 Prior to hydrostatic pressure test, blasting and painting work shall not be

carried out.

水压试验前不允许进行喷砂涂漆工作。

4.9 Service bolts and gaskets shall not be used for hydrostatic pressure testing.

After test service items will be reinstalled.

水压试验用螺栓、垫片等不能使用正式的设备用部件，水压试验合格后应方可安装正式螺栓、垫片。

4.10 There shall be at least one high point & one low point pressure gauge per

vessel.

容器上至少在顶部和底部各设置一个压力表。

5. Standard Hydrostatic Test标准的水压试验

5.1 Test Pressure试验压力