Polypropylene pipeline heat-resistant platform for testing indoor hot water system

Abstract

The utility model discloses a polypropylene pipeline heatproof platform for testing an indoor hot water system, which comprises a booster pump, a water tank and a temperature heating device, a group of pipelines to be tested are arranged in the water tank, and a water outlet of the booster pump is connected with a water inlet of the water tank through a stainless steel pipeline. A water outlet of the water tank is connected with a water inlet of the temperature heating device through a stainless steel pipeline, a water outlet of the temperature heating device is connected with a water inlet of the booster pump through a stainless steel pipeline, and the stainless steel pipeline where a water outlet of the booster pump is located is provided with a medicine adding branch used for supplementing medicine liquid. Polyoxyethylene nonyl phenyl ether is adopted as a catalyst to accelerate aging of a polypropylene pipeline, other pipelines except a test area are connected in a stainless steel pipeline clamping and pressing mode, then the temperature of the pipelines is increased to the test environment temperature, then the pressure of the pipelines is increased to the set pressure, the cracking mode of the to-be-tested pipeline is observed, and the test time is recorded. Reference is provided for later use of pipes, and potential safety hazards are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline heat resistance testing, in particular to a polypropylene pipeline heat resistance platform for testing indoor hot water systems. Background Art

[0002] With the continuous development of production technology, the requirements for the pressure resistance and resistance to cold and heat fatigue of plastic pipes have also been greatly improved. However, there is currently no effective and reliable means to detect and determine their quality. Plastic pipes are in a state of hot water circulation for a long time, and the hot water is at a temperature of 70°C for a long time, which can easily cause the polypropylene pipes to rupture and burst, which can easily create safety hazards.

[0003] To this end, the utility model proposes a heat-resistant platform for testing polypropylene pipes used in indoor hot water systems, which can monitor whether the pipes are failing in real time. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a heat-resistant platform for testing polypropylene pipes for indoor hot water systems, for heat-resistant cycle tests of polypropylene pipes, and for real-time monitoring of whether the pipes have failed.

[0005] To achieve the above purpose, the technical solution of the present utility model is as follows:

[0006] A heat-resistant platform for testing polypropylene pipes for indoor hot water systems includes a booster pump, a water tank, and a temperature heating device. A group of pipelines to be tested is installed inside the water tank. The water outlet of the booster pump is connected to the water inlet of the water tank through a stainless steel pipeline. The water outlet of the water tank is connected to the water inlet of the temperature heating device through a stainless steel pipeline. The water outlet of the temperature heating device is connected to the water inlet of the booster pump through a stainless steel pipeline. A branch for replenishing liquid medicine is provided on the stainless steel pipeline where the water outlet of the booster pump is located.

[0007] Furthermore, the dosing branch includes a medicine box and a dosing metering pump, the liquid outlet of the medicine box is connected to the liquid inlet of the dosing metering pump through a stainless steel pipeline, and the liquid outlet of the dosing metering pump is connected to the stainless steel pipeline where the booster pump outlet is located.

[0008] Furthermore, both ends of the pipeline to be tested are connected to water distributors, which are respectively connected to the water inlet and the water outlet of the water tank, and the water distributors are provided with stainless steel ball valves.

[0009] Furthermore, a pressure gauge and a small water pump are sequentially provided on the stainless steel pipeline between the water outlet of the booster pump and the water inlet of the water tank.

[0010] Furthermore, an exhaust valve is provided on the stainless steel pipeline between the water outlet of the water tank and the water inlet of the temperature heating device.

[0011] Furthermore, an electronic flow meter, a pressure gauge and a one-way valve are sequentially provided on the stainless steel pipeline between the water outlet of the temperature heating device and the water inlet of the booster pump.

[0012] Furthermore, a valve is provided on the outlet pipe of the dosing metering pump.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1) The technical solution of the present invention is adopted, by using nonylphenol polyoxyethylene ether as a catalyst to accelerate the aging of polypropylene pipes, and other pipes except the test area are connected by stainless steel pipe clamping. Then the pipe temperature is raised to the test environment temperature, and then the pipe pressure is increased to the set pressure. The cracking form of the tested pipe is observed and the test time is recorded to provide a reference for the later use of the pipe and avoid safety hazards.

[0015] 2) This utility model platform can test six pipelines at a time. It adopts the form of a water distributor with high-temperature resistant stainless steel ball valves at both ends. The test area is located inside the high-temperature water tank, which has its own insulation and heating function. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the platform of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the water tank of the experimental main body of this utility model.

[0018] In the figure: 1. Booster pump; 2. Dosing metering pump; 3. Pressure gauge; 4. Small water pump; 5. Water tank; 6. Water distributor; 7. Exhaust valve; 8. Check valve; 9. Pressure sensor; 10. Temperature heating device; 11. Medicine box; 12. Electronic flow meter. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings, but the scope of protection of the present invention is not limited to the described scope.

[0020] Please refer to Figure 1 A heat-resistant platform for testing polypropylene pipes in indoor hot water systems includes a booster pump 1, a water tank 5 and a temperature heating device 10. A group of pipelines to be tested are installed inside the water tank 5. The water outlet of the booster pump 1 is connected to the water inlet of the water tank 5 through a stainless steel pipeline. The water outlet of the water tank 5 is connected to the water inlet of the temperature heating device 10 through a stainless steel pipeline. The water outlet of the temperature heating device 10 is connected to the water inlet of the booster pump 1 through a stainless steel pipeline. A branch for replenishing liquid medicine is provided on the stainless steel pipeline where the water outlet of the booster pump 1 is located.

[0021] The dosing branch includes a medicine box 11 and a dosing metering pump 2. The liquid outlet of the medicine box 11 is connected to the liquid inlet of the dosing metering pump 2 through a stainless steel pipeline. The liquid outlet of the dosing metering pump 2 is connected to the stainless steel pipeline where the water outlet of the booster pump 1 is located.

[0022] The utility model mainly adopts nonylphenol polyoxyethylene ether as a catalyst to accelerate the aging of polypropylene pipes.

[0023] Please refer to Figure 2 The two ends of the pipeline to be tested are respectively connected to a water distributor 6, and the water distributors 6 at both ends are respectively connected to the water inlet and the water outlet of the water tank 5, and a stainless steel ball valve is provided on the water distributor 6.

[0024] In this embodiment, there are 6 pipelines to be tested, which enables batch testing of 6 pipelines to be tested, thereby improving work efficiency.

[0025] A pressure gauge 3 and a small water pump 4 are sequentially provided on the stainless steel pipeline between the water outlet of the booster pump 1 and the water inlet of the water tank 5. The pressure gauge 3 can monitor the pressure of the water inlet pipeline in real time.

[0026] An exhaust valve 7 is provided on the stainless steel pipeline between the water outlet of the water tank 5 and the water inlet of the temperature heating device 10. A valve is provided on the outlet pipeline of the dosing metering pump 2.

[0027] An electronic flow meter 12, a pressure gauge 3 and a one-way valve 8 are sequentially provided on the stainless steel pipeline between the water outlet of the temperature heating device 10 and the water inlet of the booster pump 1.

[0028] The operation method of the utility model operating platform:

[0029] 1) First, open the water tank 5 and connect the pipe to be tested at the water distributor 6;

[0030] 2) Add liquid medicine to booster pump 1, pump all the liquid into the pipeline, increase the pressure to 1MPa, and then close the valve;

[0031] 3) Start the variable frequency pump to circulate the pipeline and adjust the frequency to set the corresponding flow rate;

[0032] 4) Turn on the heating device and raise the temperature to 80°C;

[0033] 5) Add water to water tank 5 until the liquid level is above the pipe;

[0034] 6) Start the test. The test ends when the pipe cracks. Record the time and cracking form.

[0035] 7) After the test, turn off the booster pump and release the pressure, then turn off the heating device, and finally use a small water pump to pump out the water;

[0036] 8) Disassemble the test pipeline and the test is completed.

Claims

1. A heat-resistant platform for testing polypropylene pipes for indoor hot water systems, characterized in that The invention comprises a booster pump (1), a water tank (5) and a temperature heating device (10), wherein a group of pipelines to be tested are installed inside the water tank (5), the water outlet of the booster pump (1) is connected to the water inlet of the water tank (5) through a stainless steel pipeline, the water outlet of the water tank (5) is connected to the water inlet of the temperature heating device (10) through a stainless steel pipeline, the water outlet of the temperature heating device (10) is connected to the water inlet of the booster pump (1) through a stainless steel pipeline, and a branch for replenishing liquid medicine is provided on the stainless steel pipeline where the water outlet of the booster pump (1) is located.

2. A heat-resistant platform for testing polypropylene pipes for indoor hot water circulation according to claim 1, characterized in that The dosing branch comprises a medicine box (11) and a dosing metering pump (2), wherein the liquid outlet of the medicine box (11) is connected to the liquid inlet of the dosing metering pump (2) via a stainless steel pipeline, and the liquid outlet of the dosing metering pump (2) is connected to the stainless steel pipeline where the water outlet of the booster pump (1) is located.

3. A heat-resistant platform for testing polypropylene pipes for indoor hot water circulation according to claim 1, characterized in that Both ends of the pipeline to be tested are connected to water distributors (6), respectively. The water distributors (6) at both ends are connected to the water inlet and the water outlet of the water tank (5), respectively. A stainless steel ball valve is provided on the water distributor (6).

4. A heat-resistant platform for testing polypropylene pipes for indoor hot water circulation according to claim 1, characterized in that A pressure gauge (3) and a small water pump (4) are sequentially provided on the stainless steel pipeline between the water outlet of the booster pump (1) and the water inlet of the water tank (5).

5. A heat-resistant platform for testing polypropylene pipes for indoor hot water circulation according to claim 1, characterized in that An exhaust valve (7) is provided on the stainless steel pipeline between the water outlet of the water tank (5) and the water inlet of the temperature heating device (10).

6. A heat-resistant platform for testing polypropylene pipes for indoor hot water circulation according to claim 1, characterized in that An electronic flow meter (12), a pressure gauge (3) and a one-way valve (8) are sequentially provided on the stainless steel pipeline between the water outlet of the temperature heating device (10) and the water inlet of the booster pump (1).

7. A heat-resistant platform for testing polypropylene pipes for indoor hot water circulation according to claim 2, characterized in that A valve is provided on the outlet pipe of the dosing metering pump (2).

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