CN206515071U - A kind of condenser performance test device - Google Patents

Abstract

The utility model provides a kind of condenser performance test device, and the test device includes vapour source, coolant jacket, air gauge, air leakage pipe, steam leak-off valve and flowmeter, wherein, connected between the vapour source and coolant jacket by steam pipe；Condenser pipe is set in the steam pipe；Air gauge is set above the coolant jacket；The coolant jacket passes through air leakage pipe connection flow gauge；Steam leak-off valve is provided with the air leakage pipe.The measurement air amount of leaking into of offer of the present utility model condenses the experimental provision of influence on steam, it can be measured under varying experimental conditions, the air amount of leaking into of condenser, and influence for the heat transfer property of condenser under the conditions of follow-up observation measure amount of leaking into provides condition.

Description

A condenser performance test device

technical field

The utility model belongs to the technical field of condenser experiment measurement and relates to a condenser performance test device.

Background technique

Heat exchangers are widely used in industry and are especially important for thermal power generation. In order to actively respond to the national "Thirteenth Five-Year Plan" policy of "establishing a promotion mechanism for technology, energy consumption, environmental protection, and quality", with the purpose of safety, efficiency, energy conservation and environmental protection, we will promote the development of new technologies in the energy industry and effectively control Reduce greenhouse gas emissions, improve the heat transfer performance of heat exchangers, and ultimately lay a solid foundation for achieving energy conservation and emission reduction goals. It is an important method to maintain a high heat transfer efficiency in the condenser to save energy and reduce consumption, and improve the economical efficiency of unit operation. During the operation of the condenser, it is inevitable that air will leak into the system. The influence of the air leakage on the heat transfer coefficient of the condenser is very complicated. How to qualitatively and quantitatively analyze the influence of the air leakage on the heat transfer coefficient of the condenser has always been It is an important aspect of the heat transfer performance research of steam boiler. Condenser is an important heat exchange equipment of power plant unit, and there are many factors affecting its heat transfer process, among which the air leakage into the condenser is a very important factor, and the change of leakage air has an impact on the heat transfer performance of the condenser It is very large and its manifestation is also very complex. Therefore, the amount of air leakage is an important factor affecting the heat transfer of the condenser, and it is very necessary to understand its influence on the performance of the condenser alone.

Utility model content

In order to overcome the defects in the above-mentioned prior art, the purpose of this utility model is to provide a condenser performance testing device, which can measure the air leakage amount of the condenser under different experimental conditions, and provide the measurement for subsequent observations. The effect of leakage on the heat transfer performance of the condenser under the condition of leakage is provided.

The utility model is realized through the following technical solutions:

A condenser performance test device, the test device includes a steam source, a cooling jacket, a pressure gauge, a leak pipe and a flowmeter, wherein,

The steam source and the cooling jacket are connected by a steam pipe, and a condensation pipe is arranged in the steam pipe; The gas valve is connected with the flow meter through the connecting pipe.

Preferably, the steam source is an evaporator.

Further preferably, the evaporator is connected to a booster pump through a water inlet pipe, and a water inlet valve is arranged on the water inlet pipe.

Further preferably, the evaporator is provided with a heating rod.

Further preferably, a water return pipe is further provided between the evaporator and the cooling jacket, and a water return valve is provided on the water return pipe.

Further preferably, the flowmeter is a rotameter.

Preferably, a condensed water inlet pipe and a condensed water outlet pipe are respectively provided at the inlet and outlet ends of the condensate pipe.

Compared with the prior art, the utility model has the following beneficial technical effects:

The condenser performance test device provided by the utility model, when the steam flows into the cooling jacket, because the cooling water is passed into the condensation pipe, under the cooling effect of the cooling water, the steam condenses on the condensation pipe, and the vacuum degree appears in the cooling jacket. There will be different vacuum degrees under different cooling water flow and steam flow. Open the air leakage valve on the connecting pipe on the cooling jacket, the air leaks into the cooling jacket, the amount of air leakage is measured by the rotameter, until the reading of the pressure gauge on the cooling jacket is 0, the inside of the cooling jacket is at atmospheric pressure, and the air does not Leak in again. The device has an ingenious structure, is simple and compact, requires less power, is energy-saving, environment-friendly and low in cost.

Description of drawings

Fig. 1 is a structural schematic diagram of a condenser performance testing device provided by the utility model.

Among them, 1 booster pump, 2 water inlet pipe, 3 water inlet valve, 4 evaporator, 5 heating rod, 6 steam pipe, 7 cooling jacket, 8 condenser pipe, 9 condensate water inlet pipe, 10 condensate water outlet pipe, 11 drain Air pipe, 12 connecting pipes, 13 leak valve, 14 rotameter, 15 return pipe, 16 return valve, 17 pressure gauge.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Referring to Fig. 1, a kind of condenser performance testing device disclosed by the utility model, the left side of the evaporator 4 is connected with the intake pipe 2, the intake pipe 2 is connected with the booster pump 1, and the water inlet valve 3 is installed on the intake pipe 2 . A heating rod 5 is installed on the right side of the evaporator 4, and a steam pipe 6 inlet is installed above the evaporator 4. The outlet of the steam pipe 6 is installed on the cooling jacket 7, the inside of the cooling jacket 7 is equipped with a condensate pipe 8, the inlet of the condensate pipe 8 is installed with a condensed water inlet pipe 9, and the outlet of the condensed pipe 8 is installed with a condensed water outlet pipe 10. An air leakage pipe 11 is installed below the cooling jacket 7 , and an air leakage valve 13 is installed on the pipe, and the air leakage valve 13 and the float flowmeter 14 are connected by a connecting pipe 12 . A water return pipe 15 is installed below the cooling jacket 7, and a water return valve 16 is installed on this pipe. A pressure gauge 17 is installed on the cooling jacket 7 .

The condenser performance testing device of the present utility model, when working:

Turn on the booster pump 1 and the water inlet valve 3, and add water to the evaporator 4 to 2/3 of the liquid level. 5-pass electric heating for the electric heating rod. After a period of time, a certain amount of steam is generated in the evaporator 4, and the steam enters the cooling jacket 7 along the steam pipe 6. At this time, the cooling water flows from the condensed water inlet pipe 9 into the condensed pipe 8, and then flows from the condensed water outlet pipe. Outflow in 10. Under the cooling of the cooling water, the steam condenses on the surface of the condensation pipe, and the condensate flows into the evaporator 4 along the return pipe 15. A pressure gauge 17 is installed on the cooling jacket 7. When the condensation reaches a steady state, under a certain cooling water flow rate , Negative pressure appears in the cooling jacket 7, that is, there is a certain degree of vacuum, which is caused by steam condensation. Open the air leakage valve 13 on the air leakage pipe 11, the external air leaks into the condensation jacket 7, and the amount of leakage is measured by the float flowmeter 14.

After obtaining the leakage amount, the experimenter can observe the working efficiency of the condensation jacket under the leakage amount.

Claims (7)

1. a kind of condenser performance test device, it is characterised in that the test device includes vapour source, coolant jacket (7), pressure gauge (17), air leakage pipe (11) and flowmeter, wherein,

It is connected between the vapour source and coolant jacket (7) by steam pipe (6), condenser pipe (8) is set in steam pipe (6)；Pressure Power table (17) is arranged on above coolant jacket (7)；Air leakage pipe (11) is provided with below coolant jacket (7), provided with leakage in air leakage pipe (11) Air valve (13), steam leak-off valve (13) is connected by connecting tube (12) with flowmeter.

2. condenser performance test device as claimed in claim 1, it is characterised in that the vapour source is evaporator (4).

3. condenser performance test device as claimed in claim 2, it is characterised in that the evaporator (4) passes through water inlet pipe (2) one booster pump of connection (1), is provided with water intaking valve (3) on water inlet pipe (2).

4. condenser performance test device as claimed in claim 2, it is characterised in that the evaporator (4) is provided with heating Rod (5).

5. condenser performance test device as claimed in claim 2, it is characterised in that the evaporator (4) and coolant jacket (7) Between be additionally provided with return pipe (15), the return pipe (15) set back-water valve (BWV) (16).

6. condenser performance test device as claimed in claim 2, it is characterised in that the flow is calculated as suspended body flowmeter (14)。

7. condenser performance test device as claimed in claim 1, it is characterised in that distinguish at condenser pipe (8) import and export two ends Provided with condensed water water inlet pipe (9) and condensed water outlet pipe (10).