CN202393653U

CN202393653U - Water pressure experiment machine of PVC welding joint lined in PVC reinforced concrete drain pipe

Info

Publication number: CN202393653U
Application number: CN201120202974XU
Authority: CN
Inventors: 王明泽; 尹秋成
Original assignee: TIANJIN ZEBAO CEMENT PRODUCTS CO Ltd
Current assignee: TIANJIN ZEBAO CEMENT PRODUCTS CO Ltd
Priority date: 2011-06-16
Filing date: 2011-06-16
Publication date: 2012-08-22
Anticipated expiration: 2021-06-16

Abstract

The utility model discloses a water pressure experiment machine of a PVC welding joint lined in a PVC reinforced concrete drain pipe, which is composed of a water channel, a water channel gland with long holes, a water inlet pipe, an air exhaust pipe, a pressure gauge, a water inlet valve and an air-exhaust water-stopping valve; the water inlet pipe and a water outlet pipe are mounted on the two sides of the water channel respectively; the water inlet valve and the exhaust water stopping valve are mounted on the water inlet pipe and the water outlet pipe respectively; the pressure gauge is mounted on the water inlet pipe; and the water channel gland and the water channel are arranged in a fastening manner. The utility model has the following advantages: 1, the water pressure experiment machine is characterized by compact structure, light weight, small experiment water consumption; only 40kg water is needed in a whole experiment and is far less than water consumption of pipeline experiment; 2, experiment is operated simply; and 3, experiment effect is visual; leaked parts are directly founded through the experiment, which is visually determines whether welding lines are leaked or PVC lining is leaked; and the water pressure experiment machine has very good guidance to develop and adjust welding technology.

Description

Lined with PVC reinforced concrete sewer pipe PVC welding joint hydrostatic testing machine

Technical field:

The utility model belongs to a kind of drain connection hydraulic testing equipment, particularly a kind of lined with PVC reinforced concrete sewer pipe PVC welding joint hydrostatic testing machine.

Background technology:

Along with the progressively application of lined with PVC anticorrosion reinforced concrete sewer pipe in the construction market of China, the various test methods of this product begin to receive the attention of user and manufacturer.Various endemic standards are put into effect in succession at present, for this product of standard plays a good role.But formulate by the existing national standard (GB/T11836-2009 " Concrete and reinforced concrete drainage and sewer pipes ") of main reference in formulation process for various standards; The test method of product generally still adopts the test method of Concrete and reinforced concrete drainage and sewer pipes, and internal water pressure detects and adopts the closed-water test method to detect.

And lined with PVC anticorrosion reinforced concrete sewer pipe is as a kind of drainpipe of special construction; Its inner-walls of duct lining the corrosion resistant PVC lining of one deck; The corrosive medium and the inner-walls of duct concrete of pipe interior are separated, thereby protected the concrete and the reinforcing bar of imbedding in the concrete of tube wall effectively.The PVC lining needs welding in the process of pipe production; The PVC lining of tube and tube joint also needs welding in the installation process of pipeline; Inner-walls of duct PVC lining is connected as a single entity; To guarantee that the concrete of making pipeline will not corrode contact by corrosive medium, reaches the whole etch-proof effect (see figure 1) of pipeline.But but can only detect the concrete impervious situation of this each root pipe with simple closed-water test method; And can not detect the sealing water pressure resistance effect of PVC lining in the pipeline; Because normal concrete drainpipe self just has very strong water pressure resistance ability; Even the weld cracking of PVC lining also can't detect the cracking situation of PVC lining during the hydraulic testing.In case weld seam does not reach the water pressure resistance ability of design; Weld seam will crush during the hydraulic testing, and medium will directly contact with concrete, but testing crew can't be observed the seepage situation of weld seam at all from the pipeline outside; And can't judge sealing property after the welding of joint, thereby make its antiseptic effect forfeiture.

Summary of the invention:

The purpose of the utility model just is to overcome the deficiency that exists in the above-mentioned prior art; And a kind of lined with PVC reinforced concrete sewer pipe PVC welding joint hydrostatic testing machine is provided; This testing machine structure is simple, easy to operate, can detect the sealing water pressure resistance effect of the PVC lining in the PVC anticorrosion reinforced concrete sewer pipe.

As above design; The technical scheme of the utility model is: a kind of lined with PVC reinforced concrete sewer pipe PVC welding joint hydrostatic testing machine is characterized in that: be made up of tank, the tank gland that has slotted hole, water inlet pipe, gas outlet, tensimeter, water intaking valve and exhaust sealing valve; The both sides of tank are separately installed with water inlet pipe and rising pipe, are separately installed with water intaking valve and exhaust sealing valve on water inlet pipe and the rising pipe, and tensimeter is housed on the water inlet pipe; The fastening installation of tank gland and tank.

Have the 1200*25mm slotted hole on the above-mentioned tank gland.

Above-mentioned tank gland is connected through fastening bolt with tank, and in the junction rubber seal is housed.

The utlity model has following advantage and good effect:

1, compact equipment, in light weight, the test water amount is little, whole test only needs 40kg water to get final product, and is far smaller than the duct test water consumption.

2, test operation is simple, compares with hydraulic test of pipeline and need not large-scale hoisting device, need not large-scale water injection equipment, and installation and removal are fairly simple, and whole test only needs a people just can accomplish, and needs great amount of manpower and material resources unlike duct test.

3, test effect is directly perceived, can directly find seepage place through test, judges it is that weld seam leaks or the PVC lining leaks intuitively, to formulating and adjust welding technology extraordinary directive significance is arranged.

4, can better guarantee the anticorrosive quality of engineering.

Description of drawings:

Fig. 1 is the structural representation of lined with PVC reinforced concrete sewer pipe.

Fig. 2 is the structural representation of the utility model.

Embodiment:

As shown in Figure 2: a kind of lined with PVC reinforced concrete sewer pipe PVC welding joint hydrostatic testing machine, form by tank 10, the tank gland 8 that has the 1200*25mm slotted hole, water inlet pipe 4, gas outlet 11, tensimeter 2, water intaking valve 5 and exhaust sealing valve 6.The both sides of tank are separately installed with water inlet pipe and rising pipe, are separately installed with water intaking valve and exhaust sealing valve on water inlet pipe and the rising pipe, and tensimeter is housed on the water inlet pipe; The fastening installation of tank gland and tank.

The principle of work of the utility model is that intercepted length is 1300mm on the PVC test plate (panel) that adopts different welding technology weldering system; Width is the test specimen 7 of 700mm; The length of weld seam 1 is 1300mm, and places the center of test specimen, test specimen, tank gland and tank are connected by mode shown in Figure 2 and seal with rubber seal 3 with fastening bolt 9; Suppress until reaching test pressure from water inlet pipe water filling in annular seal space then, whether carry out the evaluation of welding technology according to seepage then.

Claims

1. a lined with PVC reinforced concrete sewer pipe PVC welding joint hydrostatic testing machine is characterized in that: be made up of tank, the tank gland that has slotted hole, water inlet pipe, gas outlet, tensimeter, water intaking valve and exhaust sealing valve; The both sides of tank are separately installed with water inlet pipe and rising pipe, are separately installed with water intaking valve and exhaust sealing valve on water inlet pipe and the rising pipe, and tensimeter is housed on the water inlet pipe; The fastening installation of tank gland and tank.

2. lined with PVC reinforced concrete sewer pipe PVC welding joint hydrostatic testing machine according to claim 1 is characterized in that: have the 1200*25mm slotted hole on the above-mentioned tank gland.

3. lined with PVC reinforced concrete sewer pipe PVC welding joint hydrostatic testing machine according to claim 1, it is characterized in that: above-mentioned tank gland is connected through fastening bolt with tank, and in the junction rubber seal is housed.