CN111721923A - An online oil analyzer - Google Patents

Abstract

An on-line oil analyzer comprising: explosion-proof gauge outfit, detection cavity, pressure transmitter, entry flange, export flange, temperature transmitter, sealing washer, density sensor, optical sensor, capacitance sensor. The technical scheme of the invention can automatically monitor and record the multifunctional product of the change of the related physicochemical characteristics of the product oil in the containers such as the pipeline and the like in real time, can help a user to observe and master the conditions of oil product infusion, switching and distribution in real time, and strictly control the production and scheduling links.

Description

An online oil analyzer

technical field

The invention belongs to the technical field of automatic instruments and meters, in particular to an online oil analyzer.

Background technique

At present, the characteristics of refined oil products are detected in the industry, and the common methods for observing the oil-mixing interface of pipelines include density method (CN201621285341.9), photorefractive method, near-infrared method (CN201721323657.7, CN200510137561.7), etc. At the same time, specific heat method (CN201721614665) is also used. .7), conductive method (CN201621285341.9) and fluorescence method (CN201811073424.5, CN201810866767.0). Using the above single method to detect liquid characteristics and monitor the oil-mixing interface is faced with the problem that some oil changes cannot be distinguished or the accuracy is not high, which affects the production scheduling work and reduces the economic benefits of the enterprise. At the same time, the application of online monitoring requires that the contact detection end can adapt to actual working conditions such as pipeline pressure, temperature, liquid flow rate changes, corrosiveness, and impurity pollution.

The existing Chinese patent application number 201821862032.2 discloses an oil analysis device, which belongs to the field of oil and gas storage and transportation. The oil analysis device provided by the utility model comprises a skid base platform and an oil inlet system, an oil product analysis system and an oil discharge system fixed on the skid base platform. When the mixed oil in the oil pipeline flows into the oil analysis system through the oil inlet system, the oil analysis system analyzes the composition of the oil to be tested according to multiple parameters of the oil to be tested, so that the oil in the oil pipeline can be more accurately analyzed. analysis to more accurately determine when to transfer oil mixed in pipelines to different storage tanks. However, the utility model does not propose an online oil analyzer.

Another example is the Chinese patent application No. 201920086430.8, which discloses a new type of oil analysis device, including an operation table, an anti-static plate is installed on the top of the operation table, a bracket is installed on the top of the left side of the anti-static plate, and the front side of the bracket is installed. A magnet block A is embedded, and the specific number of the magnet block A is four groups. The magnet block B is adsorbed on the front side of the magnet block A, and a color-coded card is sandwiched between the magnet block B and the magnet block A. A beaker is installed on the right side of the bracket, the right end of the color label card is placed on the front side of the beaker, and a power cord is installed on the right side of the bottom of the operating table. The utility model can connect the diesel oil through the beaker, and then compare the color with the diesel oil through the color code card. If the color is found to be turbid or dark, it is known that the diesel oil is not qualified, and the color code card can be adsorbed through the magnetic block B and the magnetic block A. For clamping, the magnetic block B and the magnetic block A are separated to facilitate the replacement of the color code card, making it more convenient to use, and the corresponding color code card can be replaced according to the actual situation. An online oil analyzer is also not proposed.

SUMMARY OF THE INVENTION

Aiming at the defects and blanks in the prior art, the present invention proposes an online oil analyzer.

The technical scheme that the present invention solves the problem is:

The oil analyzer includes: an explosion-proof meter, a detection cavity, a pressure transmitter, an inlet flange, an outlet flange, a temperature transmitter, a sealing ring, a density sensor, an optical sensor, and a capacitance sensor; the detection cavity Capacitance sensor, optical sensor and density sensor are arranged in sequence from top to bottom inside. Capacitance sensor, optical sensor and density sensor are respectively sealed on the inner wall of the detection chamber through a sealing ring. One end of the detection chamber is provided with an outlet flange, which is connected with the outlet. The side wall of the detection chamber at the relative position of the flange is provided with an explosion-proof meter, and the other end is provided with an inlet flange. The inlet flange is provided with a pressure transmitter and a temperature transmitter. The temperature transmitter is composed of a quartz cover, It is composed of shell, adjustable guide mechanism, temperature conductor rod, connecting rod, arc spring tube, pointer, movement, lever transmission, pressure sensitive part, temperature bulb, and transmission pressure element. The shell is connected with the temperature conductor rod through the adjustable guide. A quartz cover is fixed on the end face of the casing, a movement is installed inside the casing, the movement is connected with an arc spring tube through a connecting rod, and a pointer is fixed on the movement; It is composed of parts, transfer pressure element and temperature bulb, the temperature bulb is connected with the temperature conductor rod, and the temperature conductor rod is vertically arranged at the inlet flange;

Further, the sealing ring is composed of a sealing ring main body, an inner circular triangular ridge, an inner circular spring ring, and an inner circular spring limit ring. An inner circular spring coil is arranged in the hollow, and two ends of the inner circular spring coil are sleeved with each other through a limit ring of the inner circular spring coil.

Further, the density sensor, the optical sensor, and the capacitance sensor are respectively electrically connected with the computer or the terminal.

Further, the temperature transmitter and the pressure transmitter are respectively electrically connected with the computer or the terminal.

Further, the optical sensor is a near-infrared detector.

Compared with the prior art, the beneficial effects of the present invention are:

1. The oil analyzer adopts a variety of methods to detect the liquid properties and monitor the oil-mixing interface, which improves the production scheduling work and increases the economic benefits of the enterprise. At the same time, it meets the requirements of online monitoring applications. The contact detection end can adapt to actual working conditions such as pipeline pressure, temperature, liquid flow rate changes, corrosiveness, and impurity pollution.

2. The oil analyzer has a high effective distinction for naphtha, gasoline (different labels), diesel (different labels), aviation kerosene, transformer oil, etc. At the same time, the overall device structure is simple and beautiful, and the transportation and installation are convenient.

Description of drawings

Fig. 1 is the structural representation of described oil analyzer of the present invention;

Fig. 2 is the structural schematic diagram of temperature transmitter in Fig. 1;

Fig. 3 is the structural schematic diagram of the adjustment guide mechanism in Fig. 2;

Fig. 4 is a schematic diagram of the cross-sectional structure of the sealing ring in Fig. 1;

Figure 5 is a schematic view of the structure of the inner circle spring coil.

The reference numerals are explained as follows:

1-explosion-proof meter; 2-detection cavity; 3-pressure transmitter; 4-inlet flange; 5-outlet flange; 6-temperature transmitter; 601-quartz cover, 602-shell, 603-adjustment Guide mechanism, 604-temperature conductor rod, 605-connecting rod, 606-curved spring tube, 607-pointer, 608-movement, 609-lever transmission, 610-pressure sensitive piece, 611-temperature bulb, 612-transmission Pressure element; 7-density sensor, 8-seal ring, 801-seal ring body, 802-inner circular triangular ridge, 803-inner circle spring ring, 804-inner circle spring limit ring, 9-capacitive sensor, 10- Optical sensor.

Detailed ways

The content of the present invention will be further described in detail below with reference to the accompanying drawings.

As shown in Figure 1-2, the oil analyzer includes: explosion-proof gauge 1, detection chamber 2, pressure transmitter 3, inlet flange 4, outlet flange 5, temperature transmitter 6, seal Ring 8, density sensor 7, optical sensor 10, capacitive sensor 9; the detection cavity 2 is provided with capacitive sensor 9, optical sensor 10 and density sensor 7 in order from top to bottom, capacitive sensor 9, optical sensor 10 and density sensor 7 They are respectively sealed on the inner wall of the detection chamber 2 through the sealing ring 8. An outlet flange 5 is provided on one side of the detection chamber 2, and an explosion-proof meter 1 is provided on the side wall of the detection chamber 2 opposite to the outlet flange 5. An inlet flange 4 is arranged on the side of one end, and a pressure transmitter 3 and a temperature transmitter 6 are arranged at the inlet flange 4. The temperature transmitter 6 is composed of a quartz outer cover 601, an outer shell 602, an adjustment guide mechanism 603, and a temperature conductor rod 604. , connecting rod 605, arc spring tube 606, pointer 607, movement 608, lever transmission member 609, pressure sensitive member 610, temperature bulb 611, transmission pressure element 612, the shell 602 is connected to the temperature conductor rod 604 through the adjustment guide 603 Connection, the end face of the outer casing 602 is fixed with a quartz outer cover 601, the inner casing 602 is rotatably installed with a movement 608, the movement 608 is connected with the arc spring tube 606 through the connecting rod 605, and the movement 608 is fixed with a pointer 607;

As shown in Figures 2 and 3, the debugging guide mechanism 603 is composed of a lever transmission member 609, a pressure sensitive member 610, a pressure transmission element 612 and a temperature bulb 611 in order from top to bottom. The temperature bulb 611 is connected to the temperature conductor bar 604, and the temperature The conductor bar 604 is vertically arranged at the inlet flange 4;

Further, as shown in FIG. 4 and FIG. 5 , the 8-ring seal is composed of a sealing ring body 801, an inner circular triangular ridge 802, an inner circular spring ring 803, and an inner circular spring limit ring 804, and the inner circle of the sealing ring body 801 is provided. The inner circular triangular raised rib 802 is hollow inside, and an inner circular spring coil 803 is arranged in the hollow.

Further, the density sensor 7, the optical sensor 10, and the capacitance sensor 9 are respectively electrically connected to a computer or a terminal (not shown in the figure).

Further, the temperature transmitter 6 and the pressure transmitter 3 are respectively connected with a computer or a terminal.

Further, the optical sensor 10 is a near-infrared detector.

Specifically, the wavelength of the near-infrared detector light source is 800-1100 nm, and the effective optical path is 60 mm. The equivalent capacitance in the air of the coaxial capacitive sensor 9 is about 80 pf. The accuracy of density sensor 7 is better than 0.001g/cm ³ , the range of temperature transmitter 6 is -20～80℃, the accuracy is not less than 0.25%FS, the range of pressure transmitter 3 is 0～20MPa, the accuracy is not less than 0.5 %FS.

Claims (5)

1. an on-line oil analyzer, is characterized in that, comprises: explosion-proof meter, detection cavity, pressure transmitter, inlet flange, outlet flange, temperature transmitter, sealing ring, density sensor, optical sensor , capacitive sensor; a capacitive sensor, an optical sensor and a density sensor are arranged in the detection cavity in sequence from top to bottom. There is an outlet flange, an explosion-proof meter is arranged on the side wall of the detection chamber opposite to the outlet flange, an inlet flange is arranged on the side of the other end, and a pressure transmitter and a temperature transmitter are arranged at the inlet flange. The transmitter is composed of a quartz cover, a casing, an adjustable guide mechanism, a temperature conductor rod, a connecting rod, an arc spring tube, a pointer, a movement, a lever transmission, a pressure sensitive part, a temperature bulb, and a pressure transmission element. The casing is guided by the adjustment mode. The part is connected with the temperature conductor rod, the end face of the casing is fixed with a quartz cover, the inside of the casing is rotatably installed with a movement, the movement is connected with the arc spring tube through a connecting rod, and a pointer is fixed on the movement; the debugging guide mechanism from top to bottom is: It is composed of a lever transmission part, a pressure sensitive part, a pressure transmission element and a temperature bulb. The temperature bulb is connected with a temperature conductor rod, and the temperature conductor rod is vertically arranged at the inlet flange. 2. The online oil analyzer according to claim 1, wherein the sealing ring is composed of a sealing ring body, an inner circular triangular ridge, an inner circular spring ring, and an inner circular spring limit ring, and the inner circle of the sealing ring body is composed of An inner circular triangular ridge is arranged, the inner circular triangular ridge is hollow, an inner circular spring coil is arranged in the hollow, and both ends of the inner circular spring coil are sleeved with each other through the inner circular spring coil limit ring. 3 . The online oil analyzer according to claim 1 , wherein the density sensor, the optical sensor, and the capacitance sensor are electrically connected to a computer or a terminal, respectively. 4 . 4 . The online oil analyzer according to claim 3 , wherein the temperature transmitter and the pressure transmitter are respectively electrically connected to a computer or a terminal. 5 . 5. The online oil analyzer according to claim 1, wherein the optical sensor is a near-infrared detector.

Images