CN203365290U - Simple chemical corrosion testing device - Google Patents

Abstract

The utility model relates to a simple chemical corrosion test device, which comprises a double-layer glass tank for storing medicine storage tanks and samples. The water inlet pipe and the water outlet pipe are connected with a peripheral temperature control circulation device. The temperature control intelligent instrument collects the temperature signal in the working room of the test device through the thermocouple, controls the relay output according to the set test temperature value, and controls the switch of the electric heating tube through the relay. , the stainless steel water tank communicates with the interlayer of the double-layer glass tank through the water inlet pipe and the water outlet pipe; the circulating water pump is installed on the water inlet pipe, and the electric heating tube is controlled by the temperature control intelligent instrument to make the water temperature in the stainless steel water tank reach the test temperature, and then the circulating water pump makes the adjustment Water at a good temperature circulates between the stainless steel water tank and the interlayer of the double-layer glass tank, so as to ensure that the temperature in the working room remains constant. The device is simple in process and low in cost, making the test simpler and more convenient.

Description

A simple chemical corrosion test device

technical field

The utility model relates to fire-fighting equipment testing equipment, in particular to a simple chemical corrosion test box, which is a test device suitable for chemical corrosion performance of sprinkler heads and pressure switches of automatic sprinkler systems.

Background technique

The chemical corrosion test device is a test equipment used to test the corrosion resistance of automatic sprinkler system sprinklers, pressure switches and other products. Sprinklers and pressure switches will be affected by various harsh environments during storage, transportation and installation in buildings. Chemical corrosion performance testing is a very important content in the testing of related fire protection products. Chemical corrosion performance is an important method for evaluating the performance of fire protection products. One of the important indicators of poor quality. Not only the fire protection industry has chemical corrosion performance testing equipment, but many other related industries also need to use this equipment. the

At present, the existing sulfur dioxide and ammonia stress corrosion test devices at home and abroad are all large-scale corrosion test chambers. There are three heating (cooling) methods for the corrosion test chamber: 1. A heating pipe, a condensation pipe and a refrigeration unit are installed at the bottom of the test chamber. The ambient air is cooled, and the conditioned air is then sent into the studio by a fan. This method has very strict requirements on the sealing of the test box, and the sealing between the air supply pipe and the box body is not good. 2. The heating pipe, condenser pipe and fan are all in the working room, and the temperature is adjusted through the internal circulation of the air in the working room. This method is easily used in the ammonia stress corrosion test chamber to cause corrosion damage to the heating pipe and condenser pipe, greatly reducing the use life. 3. Internationally, the German Fuqi company has another design plan, which is to add a glass liner in the test chamber as a working room, the test reagents are placed in the working room, and the heating tube and condenser tube are in the test box outside the working room. This method solves the problem of poor sealing in the first solution and the corrosion and damage of the heating tube and condensation tube in the second solution, but the process is complicated and the cost is high, and the gas in the working room is heated up through the glass in the large test chamber very slow.

Contents of the invention

The purpose of this utility model is to provide a simple technical scheme of a chemical corrosion test device for the shortcomings of the existing design. A circulating waterway is set around the working room. The water temperature in the water storage tank reaches the required temperature, and then the water with adjusted temperature is circulated through the peripheral pipeline of the working room through the circulating water pump to ensure the temperature in the working room, and then the temperature in the working room is stirred evenly by the fan at the top of the working room. In order to improve the structure, the device is simple, low in cost, simple in operation, and fast in temperature rise. It is very convenient and practical for corrosion tests on small samples, and is especially suitable for corrosion tests with relatively high test temperatures. At the same time, the test system of this device The studio is made of glass, which can clearly observe the experimental phenomenon at any time.

The utility model is achieved through such a technical scheme: a simple chemical corrosion test box includes a test device, and the test device includes a double-layer glass tank for placing a drug storage tank and a sample. It is characterized in that the test device The interlayer of the double-layer glass tank is used to store heating and circulating water. The outer wall of the double-layer glass tank is provided with a water inlet pipe and an outlet pipe communicating with the interlayer, which are connected to an external temperature control circulation device through the water inlet pipe and the water outlet pipe;

The temperature control circulation device includes a box body, a stainless steel water tank, a circulating water pump, a temperature control intelligent instrument, an electric heating tube, a cover, a drain pipe, and a drain valve;

The temperature control intelligent instrument collects the temperature signal in the working room of the test device through the thermocouple, controls the relay output according to the set test temperature value, and controls the switch of the electric heating tube through the relay;

The stainless steel water tank communicates with the interlayer of the double-layer glass tank through the water inlet and outlet pipes; the circulating water pump is installed on the water inlet pipe; the stainless steel water tank is installed on the bottom frame of the box, and the temperature control intelligent instrument is installed on the front panel of the box.

The electric heating tube is controlled by the temperature control intelligent instrument to make the water temperature in the stainless steel water tank reach the test temperature, and then the water with adjusted temperature is circulated between the stainless steel water tank and the double-layer glass tank interlayer through the circulating water pump, so as to ensure that the temperature in the working room remains constant. At the same time, the speed-regulating fan on the plexiglass cover at the top of the working room stirs the temperature in the working room evenly.

The beneficial effect of the utility model is that the device is simple in process, low in cost, small in volume, simple in operation, and fast in temperature rise. The successful development of the device makes the corrosion test of small fire-fighting products simpler and more convenient, and it is convenient to observe the test phenomenon at any time. The test agent is saved, and at the same time, the problems of poor sealing of the working chamber and easy corrosion and damage of the heating pipe and the condensation pipe are solved.

Description of drawings

Figure 1. Device structure diagram;

Figure 2. Circuit system diagram.

In the figure: 1. Test device, 2. Temperature control circulation device, 3. Liquid seal, 4. Sample (test piece); 5. Water inlet pipe, 6. Water outlet pipe, 7. Wire.

1-1. Double-layer glass tank, 1-2. Plexiglass cover, 1-3. Speed regulating fan, 1-4. Anti-drip plate, 1-5. Thermometer, 1-6. Thermocouple, 1-7. Dosing port, 1-8. Drug storage tank, 1-9. Sample rack, 2-1. Cabinet, 2-2. Stainless steel water tank, 2-3. Circulating water pump, 2-4. Temperature control intelligent instrument, 2 -5. Electric heating tube, 2-6. Cover, 2-7. Drain pipe, 2-8. Drain valve.

Detailed ways

In order to understand the utility model more clearly, the utility model is described in detail in conjunction with the accompanying drawings and embodiments:

As shown in Figures 1 to 2, the simple chemical corrosion test chamber includes a test device 1, and the test device includes a double-layer glass tank 1-1 for placing a medicament storage tank 1-8 and a sample, and the test device 1 The interlayer of the double-layer glass tank 1-1 is used to store heating circulating water, and the outer wall of the double-layer glass tank 1-1 is provided with a water inlet pipe 5 and an outlet pipe 6 communicating with the interlayer, through the water inlet pipe 5 and the outlet pipe 6 and a Peripheral temperature control circulation device 2 connection;

The temperature control circulation device 2 includes a box body 2-1, a stainless steel water tank 2-2, a circulating water pump 2-3, a temperature control intelligent instrument 2-4, an electric heating tube 2-5, a cover 2-6, and a drain pipe 2- 7. Drain valve 2-8.

The stainless steel water tank 2-2 is installed on the bottom frame in the box body 2-1, and the temperature control intelligent instrument 2-4 is installed on the front panel of the box body 2-1.

The temperature control intelligent instrument 2-4 collects the temperature signal in the working room of the test device 1 through the thermocouple 1-6, controls the relay output according to the set test temperature value, and controls the switch of the electric heating tube 2-5 through the relay.

The stainless steel water tank 2-2 communicates with the interlayer of the double-layer glass tank 1-1 through the water inlet pipe 5 and the water outlet pipe 6; the circulating water pump 2-3 is installed on the water inlet pipe 5.

Control the electric heating tube 2-5 through the temperature control intelligent instrument 2-4 to make the water temperature in the stainless steel water tank 2-2 reach the test temperature, and then make the water with adjusted temperature flow in the stainless steel water tank 2-2 and the double-layer glass through the circulating water pump 2-3 The tank 1-1 circulates between the interlayers, thereby ensuring that the temperature in the working room remains constant, and the speed-regulating fan 1-3 on the plexiglass cover 1-2 at the top of the working room stirs the temperature in the working room evenly.

The plexiglass cover 1-2 is used for covering and sealing the interlayer between the studio and the two layers of glass jars.

The speed-regulating fan 1-3 is used to stir the airflow in the working room evenly, between the speed-regulating fan 1-3 and the plexiglass cover

Sealed with oil seal.

The studio is a double-layer plexiglass tank. Circulating water is passed between the two layers of glass of the double-layer glass tank 1-1, and the air in the working room is directly heated by the circulating water, so as to control the test temperature instead of passing heat into the working room. The air and stirring fans are installed outside the plexiglass cover of the glass tank, and the shaft of the fan is oil-sealed to strengthen the sealing effect of the test device. Drugs and test samples are placed in the inner glass tank (studio), and the electric heating tube is in the water tank of the temperature-controlled circulation system, which is not easy to cause corrosion damage to the electric heating tube. In addition, the volume of the device is small and the temperature rises quickly, which is especially suitable for corrosion tests with relatively high test temperatures.

According to the above description, the solution of the present invention can be realized in combination with the technology in the art.

Claims (2)

1. an easy chemical corrosion test device, comprise test unit (1), test unit comprises that one for putting the double glazing tank (1-1) of medicament storage tank (1-8) and sample, it is characterized in that, the interlayer of the double glazing tank (1-1) of test unit (1) is for storing Heating Cyclic water, the outer wall of double glazing tank (1-1) is provided with a water inlet pipe communicated with its interlayer (5) and rising pipe (6), by water inlet pipe (5), with rising pipe (6), with a peripheral hardware temperature control circulating device (2), is connected;

Described temperature control circulating device (2) comprises casing (2-1), stainless steel water tank (2-2), water circulating pump (2-3), temperature control intelligent instrument (2-4), electric heating tube (2-5), lid (2-6), drainpipe (2-7), draining valve (2-8);

Temperature control intelligent instrument (2-4) is by the temperature signal in thermopair (1-6) acquisition test device (1) operating room, according to the test temperature value pilot relay output of setting, by the switch of Control electric heating tube (2-5);

Stainless steel water tank (2-2) communicates with double glazing tank (1-1) interlayer by water inlet pipe (5) and rising pipe (6); Water circulating pump (2-3) is installed on water pipe (5);

Stainless steel water tank (2-2) is arranged on the under(-)chassis in casing (2-1), and temperature control intelligent instrument (2-4) is arranged on the front panel of casing (2-1).

2. a kind of easy chemical corrosion test device as claimed in claim 1, is characterized in that, the fan of adjustable speed fan (1-3), for airflow stirring in operating room, adopts oil sealing sealing between adjustable speed fan (1-3) and plexiglass tent.

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