Petroleum product calorific value measuring device

Abstract

The utility model discloses a petroleum product calorific value determinator, which belongs to the technical field of petroleum product determination and comprises a determinator main body and an elastic body, a lifting structure is assembled in the determinator main body, an upper cover is fixedly mounted at the upper end of the lifting structure, and a fixed seat is fixedly mounted on the lower surface of the upper cover. The upper surface of the measuring device main body is provided with a constant-temperature bath vertically corresponding to the fixed seat in position, the lower surface of the fixed seat is fixedly provided with an elastic frame, the elastic frame comprises a left supporting frame and a right supporting frame, the elastic body is assembled on the inner side of the elastic frame, the lower surface of the fixed seat is fixedly provided with a first electrode and a second electrode, and the first electrode is in contact with the upper end of the elastic body; according to the utility model, the bomb body can be automatically lifted, water injection and drainage can be automatically carried out, constant temperature treatment can be carried out, and meanwhile, a screen is arranged for operation display, so that the test process is simple and convenient, and the change and measurement of a calorific value are obvious and accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of petroleum product determination, and in particular provides a petroleum product calorific value determination device. Background Art

[0002] The determination of the calorific value of petroleum products is of great significance in practical applications. The calorific value of petroleum products is related to the chemical composition of the oil products, and the size of the calorific value depends on the percentage of each group of hydrocarbons in the oil products; the volume calorific value is one of the important indicators for identifying the performance of aviation kerosene for turbojet engines. When the volume of the aircraft tank is certain and the aircraft is required to reach the maximum flight distance, it is very important to require aviation kerosene to have a high unit volume calorific value, because the greater the volume calorific value of the fuel, the greater the thermal energy storage in the aircraft tank. If the volume calorific value of the fuel used is low, the unit consumption of fuel will inevitably increase, which will limit the aircraft's cruising range; the calorific value of boiler fuel oil is the main factor that determines the thermal intensity of the furnace and the fuel consumption, especially the special fuel oil used on ships. Under the condition of a certain oil tank capacity, the higher the calorific value of the fuel used, the longer the cruising range, which is of great significance for long-distance ships.

[0003] The existing calorific value measuring device has the following defects:

[0004] (1) Currently, all products can only measure the calorific value of coal, heavy oil and other products, but cannot conveniently and quickly measure the net calorific value of jet fuel.

[0005] (2) Most products still use the method of placing the test projectile into water, which is very inconvenient.

[0006] (3) Products on the market require two powered wires to be clamped on the test body to complete ignition. If the operation is wrong, the test will be invalid.

[0007] (4) Traditional products can only record temperature and require manual recording and calculation of results. They do not contain advanced computing functions such as touch screens and are unable to store, print, or query data. Utility Model Content

[0008] In order to solve the above problems, the utility model provides a petroleum product calorific value tester.

[0009] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a petroleum product calorific value tester, including a tester body and a projectile, the interior of the tester body is equipped with a lifting structure, the upper end of the lifting structure is fixedly installed with an upper cover, the lower surface of the upper cover is fixedly installed with a fixing seat, the upper surface of the tester body is provided with a constant temperature bath at a position vertically corresponding to the fixing seat, the lower surface of the fixing seat is fixedly installed with a projectile frame, the projectile frame is composed of two left and right support frames, the projectile is installed on the inner side of the projectile frame, the lower surface of the fixing seat is fixedly installed with a first electrode and a second electrode, the first electrode is in contact with the upper end of the projectile, the second electrode is in contact with the upper end of a support frame on one side of the projectile frame, the lower surface of the projectile frame is equipped with a sensor, and the first electrode, the second electrode and the sensor are all electrically connected to the tester body.

[0010] Furthermore, the upper cover is a cylindrical plate, and a rectangular protrusion is integrally formed on the rear side of the side surface of the upper cover, and the rectangular protrusion is fixedly installed on the upper end of the lifting structure. A motor is installed inside the measuring device body, and the lifting structure is assembled on the output end of the motor through a screw assembly and a slide rail assembly.

[0011] Furthermore, a liquid level float is fixedly mounted on the lower surface of the fixing seat.

[0012] Furthermore, a stirrer is installed on the lower surface of the bomb rack.

[0013] Furthermore, the front surface of the measuring device body is equipped with a screen.

[0014] Furthermore, a water inlet pipe and a water outlet pipe are arranged at the lower side of the inner cavity of the constant temperature bath, the water inlet pipe is connected to an external water tank after passing through a water pump, and a compressor and a heating pipe are arranged on the outer wall of the constant temperature bath.

[0015] The beneficial effects of using the utility model are:

[0016] 1. The utility model can automatically raise and lower the bomb body, and can automatically fill and drain water, and perform constant temperature treatment. At the same time, a screen is set for operation display, which makes the test process simple and convenient, and the calorific value change and measurement are obvious and accurate.

[0017] 2. The utility model designs the wire connection of the test structure in the projectile, completes the circuit through the first electrode and the second electrode, and the connection operation between the first electrode, the second electrode and the projectile is simple and accurate, which can ensure the accurate and smooth completion of the test.

[0018] 3. The utility model is also designed with a stirrer, which can effectively flow and mix the water in the constant temperature bath during the calorific value determination process, thereby making the temperature of the water around the projectile consistent, thereby ensuring the accuracy of the sensor measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the utility model.

[0020] Figure 2 For this utility model Figure 1 A partial enlarged view of part a.

[0021] Figure 3 It is a top view of the upper cover of the utility model.

[0022] Figure 4 It is a cross-sectional view of the projectile body of the utility model.

[0023] The reference numerals include: 1. measuring device body, 2. lifting structure, 3. upper cover, 4. fixing seat, 5. spring rack, 6. spring body, 7. constant temperature bath, 8. first electrode, 9. second electrode, 10. sensor, 11. liquid level float, 12. agitator, 13. screen. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figures 1 to 4 The calorific value measuring device of petroleum products comprises a measuring device body 1 and a projectile 6. A lifting structure 2 is installed inside the measuring device body 1. An upper cover 3 is fixedly installed on the upper end of the lifting structure 2. A fixing seat 4 is fixedly installed on the lower surface of the upper cover 3. A constant temperature bath 7 is provided on the upper surface of the measuring device body 1 and is vertically corresponding to the fixing seat 4. A projectile holder 5 is fixedly installed on the lower surface of the fixing seat 4. The projectile holder 5 comprises two left and right support frames. The projectile 6 is installed on the inner side of the projectile holder 5. A first electrode 8 and a second electrode 9 are fixedly installed on the lower surface of the fixing seat 4. The first electrode 8 contacts with the upper end of the projectile 6. The second electrode 9 contacts with the upper end of a support frame on one side of the projectile holder 5. A sensor 10 is installed on the lower surface of the projectile holder 5. The first electrode 8, the second electrode 9 and the sensor 10 are all electrically connected to the measuring device body 1.

[0026] The measuring device body 1 is connected to an external power source via a power cord. The measuring device body 1 is equipped with a processor for automatically performing the test and is connected to a screen 13 .

[0027] The lifting structure 2 can drive the upper cover 3 to move up and down, thereby driving the elastic body 6 to move. When the elastic body 6 is moved out, a test instrument can be placed inside it and the electrode connection can be completed. The elastic body 6 can be driven down to move it into the constant temperature bath 7 for subsequent temperature measurement.

[0028] like Figure 4 As shown, it is a diagram of the internal structure of the projectile 6. A test instrument is placed inside the projectile 6. The test instrument includes a bracket, an ignition wire and a combustion dish. The bracket mainly includes two metal rods. The lower end of one metal rod is integrally formed with a bracket. The combustion dish is placed on the bracket, and the upper end is in contact with the projectile holder 5 connected to the second electrode 9. A metal disc is assembled on the other metal rod. The upper surface of the metal disc contacts the metal rod. The upper end of the metal rod contacts the first electrode 8. The two ends of the ignition wire are respectively connected to the two metal rods. The middle part of the ignition wire is located inside the combustion dish. The ignition wire is made of nickel-chromium wire. When the first electrode 8 and the second electrode 9 are energized, the ignition wire will burn out in about a few tenths of a second, and the sample in the combustion dish will burn at this time.

[0029] The metal disc also serves to shield the flame of the burning sample and prevent the flame from contacting the seal on the bomb body 6.

[0030] Distilled water needs to be added into the constant temperature bath 7.

[0031] The sensor 10 is used to measure the temperature change in the constant temperature bath 7 after the sample is burned.

[0032] Specifically, if Figure 3 As shown, the upper cover 3 is a cylindrical plate, and a rectangular protrusion is integrally formed on the rear side of the side surface of the upper cover 3, and the rectangular protrusion is fixedly installed on the upper end of the lifting structure 2. A motor is installed inside the measuring device body 1, and the lifting structure 2 is assembled to the output end of the motor through a screw assembly and a slide rail assembly to realize the lifting and lowering of the lifting structure 2.

[0033] Specifically, if Figure 2 As shown, a liquid level float 11 is fixedly mounted on the lower surface of the fixing seat 4 for detecting the liquid level in the constant temperature bath 7 .

[0034] Specifically, if Figure 2 As shown, the lower surface of the bomb rack 5 is equipped with a stirrer 12 to promote the flow of the liquid in the constant temperature bath 7, so that the temperature of the liquid in the constant temperature bath 7 is uniform, thereby making the measurement result of the sensor 10 more accurate.

[0035] Specifically, if Figure 1 As shown, the front surface of the measuring device body 1 is equipped with a screen 13, and operations can be performed on the screen 13, and test and measurement results can be displayed.

[0036] Specifically, if Figure 1 As shown, a water inlet pipe and a water outlet pipe are arranged at the lower side of the inner cavity of the constant temperature bath 7. The water inlet pipe is connected to the external water tank after passing through a water pump. A compressor and a heating pipe are arranged on the outer wall of the constant temperature bath 7, which can realize automatic water filling and drainage, and realize quantitative water filling, making the test process more convenient and facilitating the calculation of the results.

[0037] The preparation work for determining the calorific value of petroleum products is as follows:

[0038] 1. Place distilled water in the water tank in advance, no less than 6L;

[0039] A single test requires 2.5L of water;

[0040] 2. Install the ignition wire: Place the projectile body 6 on the bullet holder, take a 9cm long ignition wire, hang both ends on the metal rod of the holder, and lock it with a fixing ring;

[0041] Among them, the ignition wire must not contact the combustion dish or other metal parts of the bomb body 6, so as to avoid bypassing the ignition current and causing ignition failure;

[0042] 3. Weighing samples: Weigh a certain mass of sample (accurate to 0.0002g) using a constant weight combustion dish. It is recommended to start the test from 1g. At the same time, adjust the shape of the ignition wire so that the ignition wire contacts the sample.

[0043] Among them, a certain mass refers to the mass of the sample that can be fully burned in the oxygen bomb and produce a significant temperature rise phenomenon. Full combustion means that there is no ash after combustion;

[0044] During calibration, weigh 1 gram (about 1 tablet) of tablet benzoic acid, accurate to 0.0002g;

[0045] 4. Oxygenator installation: Connect the automatic oxygenator to the pressure reducing valve of the industrial oxygen cylinder, connect the oxygen conduit to the automatic oxygenator, and adjust the output pressure of the oxygen meter to 3MPa;

[0046] Among them, the output pressure of the pressure reducing valve should be greater than 3MPa;

[0047] 5. Oxygenation: Add 1 ml of distilled water into the bomb body 6, gently put the bomb cover with the test instrument into the bomb body 6, tighten the bomb cover, put the bomb body 6 on the automatic oxygenator, turn on the gas source, limit the pressure to 2.5-3.2 MPa, and slowly fill the bomb body 6 with oxygen. The pressure balance time shall not be less than 30 seconds;

[0048] When the test instrument is loaded, it is necessary to ensure that the sample cannot overflow outside the combustion dish;

[0049] Put the oxygen-filled bomb 6 into water to check for leaks. If no continuous bubbles are seen, it means that the oxygen bomb is not leaking. If there is a leak, the oxygen needs to be exhausted, and then the leak needs to be tightened with a wrench, or the seal is replaced, and then the sample is reloaded and oxygenated;

[0050] The bomb body 6 is a high-pressure resistant device. It should be filled with oxygen according to the correct pressure requirements. It must not be over-pressurized and should be properly stored and properly maintained.

[0051] 6. If equipped with a water pump, connect the water pump power supply to the socket on the rear side of the instrument, connect the water pump to the water tank, and connect the water outlet pipe of the pump to the water inlet pipe in the instrument.

[0052] After that, the measurement work can be carried out. During the measurement, the first electrode 8 and the second electrode 9 are energized to make the ignition wire ignite the sample, and the stirrer 12 and the sensor 10 are started at the same time to record the temperature change in the constant temperature bath 7, and the calorific value of the sample is calculated based on the recorded temperature change.

[0053] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scopes based on the ideas of the present invention. As long as these changes do not deviate from the concept of the present invention, they all belong to the protection scope of the present invention.

Claims

1. A petroleum product calorific value tester, characterized in that: It includes a measuring device body and a projectile, wherein the interior of the measuring device body is equipped with a lifting structure, an upper cover is fixedly installed on the upper end of the lifting structure, a fixing seat is fixedly installed on the lower surface of the upper cover, a constant temperature bath is opened on the upper surface of the measuring device body at a position vertically corresponding to the fixing seat, a projectile rack is fixedly installed on the lower surface of the fixing seat, the projectile rack is composed of two left and right support racks, the projectile is assembled on the inner side of the projectile rack, a first electrode and a second electrode are fixedly installed on the lower surface of the fixing seat, the first electrode contacts with the upper end of the projectile, the second electrode contacts with the upper end of a support rack on one side of the projectile rack, a sensor is assembled on the lower surface of the projectile rack, and the first electrode, the second electrode and the sensor are all electrically connected to the measuring device body.

2. The petroleum product calorific value measuring device according to claim 1, characterized in that: The upper cover is a cylindrical plate, and a rectangular protrusion is integrally formed on the rear side of the side surface of the upper cover, and the rectangular protrusion is fixedly installed on the upper end of the lifting structure. A motor is installed inside the measuring device body, and the lifting structure is assembled on the output end of the motor through a screw assembly and a slide rail assembly.

3. The petroleum product calorific value measuring device according to claim 1, characterized in that: A liquid level float is fixedly mounted on the lower surface of the fixing seat.

4. The petroleum product calorific value measuring device according to claim 1, characterized in that: The lower surface of the bomb rack is equipped with a stirrer.

5. The petroleum product calorific value measuring device according to claim 1, characterized in that: The front surface of the measuring device body is equipped with a screen.

6. The petroleum product calorific value measuring device according to claim 1, characterized in that: A water inlet pipe and a water outlet pipe are arranged at the lower side of the inner cavity of the constant temperature bath. The water inlet pipe is connected to an external water tank after passing through a water pump. A compressor and a heating pipe are arranged on the outer wall of the constant temperature bath.

Images