CN113466082A - High-vacuum intelligent micro-water measuring device and method - Google Patents
High-vacuum intelligent micro-water measuring device and method Download PDFInfo
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- CN113466082A CN113466082A CN202110731557.2A CN202110731557A CN113466082A CN 113466082 A CN113466082 A CN 113466082A CN 202110731557 A CN202110731557 A CN 202110731557A CN 113466082 A CN113466082 A CN 113466082A
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Abstract
The invention discloses a high-vacuum intelligent micro-water measuring device and a method, comprising a supporting plate, a bent pipe, a transmission device, a flange, an electromagnetic valve, a glass pipe and a monocrystalline silicon pressure sensor; the supporting plate is provided with a monocrystalline silicon pressure sensor and a transmission device, the output end of the monocrystalline silicon pressure sensor is connected with the input end of the transmission device, and the output end of the transmission device is connected with the input end of the data processing device; the glass tube is arranged on the flange, the upper end of the glass tube is communicated with a water outlet of the condenser, the bottom of the glass tube is provided with a water outlet pipeline, and the water outlet pipeline is provided with an electromagnetic valve; the monocrystalline silicon pressure sensor is communicated with one end of the bent pipe, and the other end of one end of the bent pipe is connected with the bottom of the glass pipe. The difference between the hydrostatic pressure on the probe and the actual atmospheric pressure is measured by arranging the glass tube and the monocrystalline silicon pressure sensor, and the difference is used for judging the drying end point. The accuracy of the detected data is guaranteed, the labor intensity of operators is reduced, and the drying quality of products is better guaranteed.
Description
Technical Field
The invention belongs to the technical field of transformers, and particularly belongs to a high-vacuum intelligent micro-water measuring device and method.
Background
The vapor phase drying of transformer products is a key process for manufacturing the products, and the oil-immersed power transformer and the reactor need to be subjected to vapor phase drying treatment to control the water content in the insulating part, improve the electrical performance of materials and ensure the product quality. The judgment of the drying end point is a very important link, and the correct judgment has great significance for ensuring the insulation treatment quality and reasonably using energy. The drying of ware body is not enough, and the water content in the insulation can reduce the product dielectric constant, influences product insulation electric strength, influences product quality. The over-drying of the body reduces the production efficiency of the product, causes the waste of energy and increases the manufacturing cost on one hand, and on the other hand, the body is in a high-temperature vacuum state for a long time, and is also harmful and useless to the insulating material.
High vacuum micro-water measurement in the product drying process is an important condition for judging the drying end point. The gas pumped out by the product in high vacuum passes through a condenser, one part of the gas is changed into water and is collected in a gas exhaust separator (glass cylinder), the other part of the gas is changed into gas and is exhausted, usually, the dry high vacuum micro water of the product is collected in a glass tube with scales, people are required to frequently visually observe and record the water yield, the measurement is not accurate, the calculated water yield does not meet the requirement, meanwhile, the water is frequently observed to be full in the process, a valve is opened for water exhaust, and the operation is complicated; the labor intensity is high. And cannot be read remotely.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a high-vacuum intelligent micro-water measuring device and method, which realize the functions of changing manual detection into intelligent detection and remotely transmitting the intelligent detection to an office computer, improve the accuracy of high-vacuum micro-water detection of products and simultaneously reduce the labor intensity of operators.
In order to achieve the purpose, the invention provides the following technical scheme:
a high-vacuum intelligent micro-water measuring device comprises a supporting plate, a bent pipe, a transmission device, a flange, an electromagnetic valve, a glass pipe and a monocrystalline silicon pressure sensor;
the supporting plate is provided with a monocrystalline silicon pressure sensor and a transmission device, the output end of the monocrystalline silicon pressure sensor is connected with the input end of the transmission device, and the output end of the transmission device is connected with the input end of the data processing device;
the glass tube is arranged on the flange, the upper end of the glass tube is communicated with a water outlet of the condenser, a water outlet pipeline is arranged at the bottom of the glass tube, and an electromagnetic valve is arranged on the water outlet pipeline;
the monocrystalline silicon pressure sensor is communicated with one end of the bent pipe, and the other end of one end of the bent pipe is connected with the bottom of the glass pipe.
Preferably, the glass tube is of a cylindrical structure, and the inside of the glass tube is of a reducing structure.
Further, the diameter of the inner upper end of the glass tube is larger than that of the lower end.
Preferably, a screw is arranged on the outer side of the glass tube, one end of the screw is fixed on the flange, the other end of the screw is fixed on the exhaust separator flange, the exhaust separator flange is fixed at the upper end of the glass tube, and the exhaust separator flange is communicated with a water outlet of the condenser.
Preferably, the number of the screws is 3, and the screws are uniformly distributed on the outer side wall of the glass tube in the circumferential direction.
Preferably, a protective cover is arranged on the supporting plate, and the monocrystalline silicon pressure sensor and the transmission device are arranged inside the protective cover.
Preferably, the installation heights of the two ends of the elbow are the same.
Preferably, the connecting part of the glass tube and the flange is provided with a sealant.
Preferably, the transmission device is a wireless transmission device.
A high-vacuum intelligent micro-water measuring method is based on any one of the above, and comprises the following processes that in a product vapor phase drying and high-vacuum drying stage, gas pumped out of a drying tank continuously discharges water into a glass tube through a condenser, a bent tube transmits water pressure in the glass tube to a monocrystalline silicon pressure sensor, the monocrystalline silicon pressure sensor measures the difference between hydrostatic pressure and actual atmospheric pressure, the monocrystalline silicon pressure sensor outputs the difference to a data processing device through a transmission device, and water yield, accumulated water yield and water yield are calculated and obtained for judging a drying end point.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides a high-vacuum intelligent micro-water measuring device, which is characterized in that a glass tube and a monocrystalline silicon pressure sensor are arranged, in the stage of vapor phase drying and high-vacuum drying of a product, gas pumped out of a drying tank continuously discharges water into the glass tube through a condenser, a bent tube transmits water pressure in the glass tube to the monocrystalline silicon pressure sensor, the sensor measures the difference between hydrostatic pressure on a probe and actual atmospheric pressure, based on the principle that the measured hydrostatic pressure is in direct proportion to the height (the precision is 0.5mm) of liquid, a monocrystalline silicon pressure sensitive element and an electronic element convert the differential pressure into an electric signal, the electric signal is output to a data processing device through a transmission device, and water yield, accumulated water yield and water yield are calculated and used for judging a drying end point. The drainage end is provided with an electromagnetic valve to realize automatic drainage. The requirements of the product on high vacuum micro-water change volume and water yield are met; the accuracy of the detected data is guaranteed, the labor intensity of operators is reduced, and the drying quality of products is better guaranteed. The drying quality of the product is reliably guaranteed, intelligent detection water yield and data remote transmission are achieved, the automatic drainage function of the separator is achieved, data accuracy is guaranteed (the measurement accuracy is improved by more than 200 times in comparison with the prior art), the labor intensity of operators is reduced, and good social benefit and economic benefit are expected.
Furthermore, the water yield can be less and less along with the increase of drying time in the dry high vacuum stage of product, and water pressure descends gradually promptly, through the inner chamber that sets up the inequality footpath structure, the diameter of the inside upper end of glass pipe is greater than the diameter of lower extreme promptly, and monocrystalline silicon pressure sensor detects water pressure, and later stage water yield is mainly collected in the thin glass pipe in lower part, conveniently detects.
Further, through being provided with the protection casing on the layer board, monocrystalline silicon pressure sensor and transmission device set up inside the protection casing for protect monocrystalline silicon pressure sensor and wireless transmission device.
Furthermore, the installation heights of the two ends of the elbow are the same, so that the influence of pressure difference caused by height difference on the accuracy of the measured data is avoided.
Furthermore, the sealing glue is arranged at the connecting part of the glass tube and the flange, so that the sealing performance is improved, the pressure imbalance caused by leakage is avoided, and the accuracy of the measured data is influenced.
Drawings
FIG. 1 is a schematic structural diagram of a high-vacuum intelligent micro-water measuring device according to the present invention.
FIG. 2 is a side view showing a three-dimensional structure of the glass tube of the present invention.
FIG. 3 is a bottom view of a three-dimensional structure of the glass tube of the present invention.
FIG. 4 is a cross-sectional view of a glass tube of the present invention.
In the drawings: the device comprises a supporting plate 1, a bent pipe 2, a transmission device 3, a flange 4, an electromagnetic valve 5, a screw rod 6, a glass pipe 7, a protective cover 8 and a monocrystalline silicon pressure sensor 9.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
The invention relates to a transformer vapor phase drying high-vacuum intelligent micro-water measuring device, which meets the requirements of the volume change and the water yield of high-vacuum micro-water of a product, calculates data by using a special program and remotely transmits the data to a computer; meanwhile, the electromagnetic valve is arranged at the drainage end, so that automatic drainage is realized, the accuracy of detected data is ensured, the labor intensity of operators is reduced, and the drying quality of products is better ensured.
The invention can reliably ensure the drying quality of the product, realize the intelligent detection of water yield and the remote data transmission, realize the automatic drainage function of the separator, ensure the data accuracy (which is improved by more than 200 times compared with the prior measurement precision), reduce the labor intensity of operators and predict good social and economic benefits.
The invention discloses a high-vacuum intelligent micro-water measuring device which comprises a supporting plate 1, a bent pipe 2, a transmission device 3, a flange 4, an electromagnetic valve 5, a glass pipe 7 and a monocrystalline silicon pressure sensor 9, wherein the supporting plate is fixedly connected with the bent pipe 2; a monocrystalline silicon pressure sensor 9 and a transmission device 3 are arranged on the supporting plate 1, the output end of the monocrystalline silicon pressure sensor 9 is connected with the input end of the transmission device 3, and the output end of the transmission device 3 is connected with the input end of the data processing device; the glass tube 7 is arranged on the flange 4, the upper end of the glass tube 7 is communicated with a water outlet of the condenser, the bottom of the glass tube 7 is provided with a water outlet pipeline, and the water outlet pipeline is provided with an electromagnetic valve 5; the monocrystalline silicon pressure sensor 9 is communicated with one end of the elbow pipe 2, and the other end of one end of the elbow pipe 2 is connected with the bottom of the glass pipe 7.
Examples
As shown in figure 1, the invention relates to a transformer vapor phase drying high-vacuum intelligent micro-water measuring device, which comprises a supporting plate 1, a bent pipe 2, a transmission device 3, a flange 4, an electromagnetic valve 5, a screw 6, a glass pipe 7, a protective cover 8 and a monocrystalline silicon pressure sensor 9.
The supporting plate 1 is provided with a hole, the bent pipe 2 is inserted into the hole, one end of the bent pipe is connected with the monocrystalline silicon pressure sensor 9, the other end of the bent pipe is connected with the flange 4, and the mounting heights of the two ends of the bent pipe 2 are kept consistent. The upper flange 4 of the supporting plate 1 is provided with a boss, the glass tube 7 (with different diameters) is clamped outside the boss of the flange 4, the glass tube 7 is of a cylindrical structure, and the inside of the glass tube 7 is of a reducing structure; the diameter of the inner upper end of the glass tube 7 is larger than that of the lower end. The periphery of the glass tube is coated with sealant, screw rods 6 are uniformly distributed around the glass tube, a flange 4 and a drain separator are connected into a whole, a lower tube of the supporting plate 1 is connected with an electromagnetic valve 5, water is automatically drained to a drain system according to a program set value, a protective cover 8 is arranged on the supporting plate 1, and a monocrystalline silicon pressure sensor 9 and a transmission device 3 are arranged inside the protective cover 8. For protecting the monocrystalline silicon pressure sensor 9 and the transfer device 3.
The outer side of the glass tube 7 is provided with a screw 6, one end of the screw 6 is fixed on the flange 4, the other end of the screw 6 is fixed on the exhaust separator flange, the exhaust separator flange is fixed at the upper end of the glass tube 7, and the exhaust separator flange is communicated with a water outlet of the condenser. The number of the screws 6 is 3, and the screws 6 are evenly distributed on the outer side wall of the glass tube 7 in the circumferential direction.
As shown in the figures 2 to 4, in the glass tube 1, the water yield of the product in the high vacuum drying stage is reduced along with the increase of the drying time, namely, the water pressure is gradually reduced, so that the water pressure can be conveniently detected by the monocrystalline silicon pressure sensor 9, the water yield in the later stage is mainly collected in the glass tube with the thin lower part, and the volume (see) of the glass tube 7 is designed to meet the water yield requirements of products with different tonnages according to the calculation of the historical data of the water yield of the dried product.
The invention relates to a high vacuum intelligent micro-water measuring method, which comprises the following process that in the product vapor phase drying and high vacuum drying stage, gas pumped out of a drying tank continuously discharges water into a glass tube 7 through a condenser, a bent tube 2 transmits the water pressure in the glass tube 7 to a monocrystalline silicon pressure sensor 9, the sensor measures the difference between the hydrostatic pressure on a probe and the actual atmospheric pressure, based on the principle that the measured hydrostatic pressure is in direct proportion to the height (the precision is 0.5mm) of the liquid, the monocrystalline silicon pressure sensitive element and an electronic element convert the differential pressure into an electric signal, the electric signal is output to an office computer through a wireless transmission device 3, and the water yield, the accumulated water yield and the water yield are calculated through a program and are used for judging the drying end point. The drainage end is provided with an electromagnetic valve, and automatic drainage is realized at certain time intervals according to a program set value.
The transformer vapor phase drying high-vacuum intelligent micro-water measuring device meets the requirement of product drying judgment, reliably ensures the product drying quality, realizes the functions of intelligently detecting the water yield and remotely transmitting data, automatically drains water by the separator, improves the data accuracy (the measuring precision is improved by more than 200 times compared with the prior measuring precision), reduces the labor intensity of operators, and is expected to have good social benefit and economic benefit.
The transformer vapor phase drying high-vacuum intelligent micro-water measuring device meets the requirement of product drying judgment, reliably ensures the product drying quality, realizes intelligent detection of water yield and remote data transmission, has the automatic water discharging function of the separator, improves the data accuracy (the measurement precision is improved by more than 200 times compared with the previous measurement precision), reduces the labor intensity of operators, and predicts good social benefit and economic benefit, and realizes wireless data transmission and remote data reading; the moisture collecting pipe can automatically drain water.
Claims (10)
1. A high-vacuum intelligent micro-water measuring device is characterized by comprising a supporting plate (1), a bent pipe (2), a transmission device (3), a flange (4), an electromagnetic valve (5), a glass pipe (7) and a monocrystalline silicon pressure sensor (9);
a monocrystalline silicon pressure sensor (9) and a transmission device (3) are arranged on the supporting plate (1), the output end of the monocrystalline silicon pressure sensor (9) is connected with the input end of the transmission device (3), and the output end of the transmission device (3) is connected with the input end of the data processing device;
the glass tube (7) is arranged on the flange (4), the upper end of the glass tube (7) is communicated with a water outlet of the condenser, a water outlet pipeline is arranged at the bottom of the glass tube (7), and an electromagnetic valve (5) is arranged on the water outlet pipeline;
the monocrystalline silicon pressure sensor (9) is communicated with one end of the elbow (2), and the other end of one end of the elbow (2) is connected with the bottom of the glass tube (7).
2. The high-vacuum intelligent micro-water measuring device as claimed in claim 1, wherein the glass tube (7) is of a cylindrical structure, and the inside of the glass tube (7) is of a reducing structure.
3. A high vacuum intelligent micro water measuring device according to claim 2, characterized in that the diameter of the upper end of the inside of the glass tube (7) is larger than that of the lower end.
4. The high-vacuum intelligent micro-water measuring device according to claim 1, wherein a screw (6) is arranged outside the glass tube (7), one end of the screw (6) is fixed on the flange (4), the other end of the screw (6) is fixed on a gas exhaust separator flange, the gas exhaust separator flange is fixed on the upper end of the glass tube (7), and the gas exhaust separator flange is communicated with a water outlet of a condenser.
5. The high-vacuum intelligent micro-water measuring device as claimed in claim 1, wherein the number of the screws (6) is 3, and the screws (6) are circumferentially and uniformly distributed on the outer side wall of the glass tube (7).
6. The high-vacuum intelligent micro-water measuring device according to claim 1, wherein a protective cover (8) is arranged on the supporting plate (1), and the monocrystalline silicon pressure sensor (9) and the transmission device (3) are arranged inside the protective cover (8).
7. A high vacuum intelligent micro water measuring device according to claim 1, characterized in that the installation height of the two ends of the elbow (2) is the same.
8. The high-vacuum intelligent micro-water measuring device as claimed in claim 1, wherein a sealing glue is arranged at the connecting part of the glass tube (7) and the flange (4).
9. A high vacuum intelligent micro water measuring device according to claim 1, characterized in that the transmission device (3) is a wireless transmission device.
10. A high vacuum intelligent micro water measuring method, characterized in that, based on any one of claims 1-9, a high vacuum intelligent micro water measuring device comprises the following processes, in the product vapor phase drying high vacuum drying stage, the gas pumped out from the drying tank continuously discharges water into the glass tube (7) through the condenser, the bent tube (2) transmits the water pressure in the glass tube (7) to the monocrystalline silicon pressure sensor (9), the monocrystalline silicon pressure sensor (9) measures the difference between the hydrostatic pressure and the actual atmospheric pressure, the monocrystalline silicon pressure sensor (9) outputs to the data processing device through the transmission device (3), the water yield, the accumulated water yield and the water yield are calculated, and used for the judgment of the drying terminal.
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