CN111397688B - Liquid level measuring device for double-chamber balance container - Google Patents
Liquid level measuring device for double-chamber balance container Download PDFInfo
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- CN111397688B CN111397688B CN202010255536.3A CN202010255536A CN111397688B CN 111397688 B CN111397688 B CN 111397688B CN 202010255536 A CN202010255536 A CN 202010255536A CN 111397688 B CN111397688 B CN 111397688B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/78—Adaptations or mounting of level indicators
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Abstract
The invention provides a liquid level measuring device for a double-chamber balance container, which comprises a double-chamber balance container barrel, an upper seal head, a lower seal head, an upper connecting pipe, a lower connecting pipe, a T-shaped communicating vessel, a positive pressure pipe, a blow-off pipe, a condensing coil pipe, a negative pressure pipe, a boiler, a steam pocket vapor phase conduit, a blow-off treatment antifouling discharge pipe structure, an automatic control release pipe structure for preventing overhigh steam pressure and an adjustable support mounting frame structure. The arrangement of the double-chamber balance container barrel is beneficial to collecting condensed water flowing back from the condensing coil, discharging the condensed water into the downcomer of the boiler, heating and storing heat for the whole container in the flowing process, ensuring the temperature in the container and the steam drum to be consistent, and further ensuring the accuracy of a measuring result; the T-shaped communicating vessel is favorable for ensuring that the water level height of the communicating vessel changes along with the water level of the steam drum, so that the pressure of the positive pressure side changes along with the pressure change of the boiler steam drum, the measurement accuracy is ensured, the liquid level measurement error is reduced, and the detection efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of boiler drum liquid level measurement, and particularly relates to a liquid level measuring device for a double-chamber balance container.
Background
A dual chamber balancing container is a level measuring device with some self-compensating capability. The main structure of the device is provided with a container barrel, the upper part of the same side of the container barrel is communicated with a steam connecting pipeline, the lower part of the same side of the container barrel is communicated with a liquid connecting pipeline, a steam inlet valve is arranged on the steam connecting pipeline, a water inlet valve is arranged on the liquid connecting pipeline, the bottom of the container barrel is communicated with a sewage discharge pipeline, a sewage discharge valve is arranged on the sewage discharge pipeline, a reference cup is arranged below the steam outlet end of the steam connecting pipeline in the container barrel, the bottom of the reference cup is communicated with a positive pressure pipeline which penetrates out of the container barrel from the bottom of the container barrel in a sealing manner, the negative pressure pipeline which penetrates out of the container barrel from the bottom of the container barrel is arranged below the water outlet end of the liquid connecting pipeline in a sealing manner, the tail ends of the positive pressure pipeline and the negative pressure pipeline are respectively connected with a positive pressure interface and a negative pressure interface of a pressure transmitter, and the signal output end of the pressure transmitter is connected with a secondary instrument. Saturated water vapor from the heater releases latent heat of vaporization when entering the container cylinder through the steam connecting pipeline to form saturated condensed water to be supplied to the reference cup, and the reference cup is used for collecting the condensed water, guiding the pressure generated by the condensed water out of the container and transmitting the pressure to the positive pressure end of the pressure transmitter.
At present, the water level in a boiler steam drum cannot be directly measured, and therefore an eduction tube measurement method is mostly adopted. According to the principle of fluid statics, the drum level is known by measuring the static pressure difference between a variable water level and a constant water level. The traditional balancing container has a single-chamber balancing container and a double-chamber balancing container.
But current balance container still has the great measurement accuracy that leads to poor, and factor of safety is low for the measured data error, pollutes the environment easily during the blowdown and is not convenient for install fixed problem.
Therefore, the invention discloses a double-chamber balance container liquid level measuring device which is very necessary.
Disclosure of Invention
In order to solve the technical problems, the invention provides a liquid level measuring device for a double-chamber balance container, which aims to solve the problems that the existing balance container has poor measuring accuracy and low safety coefficient due to large measuring data error, easily pollutes the environment during pollution discharge and is inconvenient to install and fix. The double-chamber balance container liquid level measuring device comprises a double-chamber balance container barrel, an upper end enclosure, a lower end enclosure, an upper connecting pipe, a lower connecting pipe, a T-shaped communicating vessel, a positive pressure pipe, a blow-off pipe, a condensing coil pipe, a negative pressure pipe, a boiler, a steam pocket vapor phase conduit, a blow-off treatment antifouling discharge pipe structure, a steam pressure overhigh prevention automatic control release pipe structure and an adjustable support mounting frame structure, wherein the upper end of the double-chamber balance container barrel is in threaded connection with the upper end enclosure, and the lower end of the double-chamber balance container barrel is in threaded connection with the lower end enclosure; the upper and lower inlets on the left side of the double-chamber balance container cylinder are respectively connected with an upper connecting pipe and a lower connecting pipe in a transverse threaded manner; the T-shaped communicating vessel is inversely positioned at the left side in the double-chamber balance container cylinder, and the horizontal part at the lower part is positioned in the lower seal head; one end of the lower horizontal part of the inverted T-shaped communicating vessel is in threaded connection with a lower connecting pipe, and the other end of the lower horizontal part of the inverted T-shaped communicating vessel is in threaded connection with the upper end of the positive pressure pipe which is longitudinally arranged; the drainage pipe is longitudinally and threadedly connected to the right side in the lower seal head and is communicated with the double-chamber balance container barrel; one end of the condensing coil is in threaded connection with an outlet at the upper part of the double-chamber balance container barrel, and the other end of the condensing coil is in threaded connection with an inlet at the upper end of the negative pressure pipe; the upper and lower outlets on the right side of the boiler are respectively connected with a steam drum vapor phase conduit in a transverse threaded manner; the upper connecting pipe and the lower connecting pipe are respectively in threaded connection with the steam drum vapor phase conduit; the structure of the pollution-preventing discharge pipe for pollution discharge treatment is connected with a sewage discharge pipe; the automatic control release pipe structure for preventing the steam pressure from being overhigh is connected with the upper end enclosure; the adjustable supporting mounting frame structure is connected with the double-chamber balance container barrel.
Preferably, the antifouling discharge pipe structure for sewage treatment comprises a sewage treatment barrel, a treatment core, a cleaning bolt, an impurity filtering net, a cleaning cover and a discharge pipe with a valve, wherein the treatment core is longitudinally arranged in the sewage treatment barrel and is fastened and connected through the cleaning bolt; the lower side inside the sewage treatment barrel is connected with a trash filtering net through screws; the lower end of the sewage treatment barrel is in threaded connection with a cleaning cover; the outlet of the middle position inside the cleaning cover is connected with the valve calandria by threads.
Preferably, the automatic control release pipe structure for preventing the steam pressure from being overhigh comprises an air release cylinder, an exhaust pipe, a fixing cap, an automatic control rubber plug, an automatic control rod, a reset spring and a split ring, wherein the exhaust pipe is respectively in threaded connection with outlets at the middle positions of the left side and the right side of the air release cylinder; the upper end of the air releasing cylinder is in threaded connection with a fixing cap; the self-control rubber plug is movably arranged at the lower side in the air release cylinder; one longitudinal end of the automatic control rod is in threaded connection with the inside of the automatic control rubber plug, and the other end of the automatic control rod penetrates through the inside of a through hole in the middle of the inside of the fixing cap; the reset spring is sleeved on the outer wall of the automatic control rod; the split ring is sleeved in an annular groove formed in the outer wall of the upper portion of the automatic control rod.
Preferably, the adjustable supporting and mounting frame structure comprises vertical bubble beads, a connecting seat, a movable bolt and nut, a telescopic adjusting rod, a mounting seat, a supporting and adjusting frame and a mounting bolt, wherein the vertical bubble beads are longitudinally embedded in the middle position inside the connecting seat; the middle position of the right side of the connecting seat is welded with a connecting seat; one end of the telescopic adjusting rod is coupled at the middle position in the mounting seat, and the other end of the telescopic adjusting rod is mounted at the middle position in the connecting seat through a movable bolt and a movable nut; the mounting seats are respectively bolted at the middle positions of the upper part and the lower part of the left side of the support adjusting frame; and the four corners inside the supporting and adjusting frame are respectively and transversely connected with mounting bolts through threads.
Preferably, the upper end of the sewage treatment barrel is in threaded connection with the lower end of the sewage discharge pipe.
Preferably, the treatment core specifically adopts an activated carbon adsorption core with an inverted trapezoidal longitudinal section, and the impurity filtering net specifically adopts a circular stainless steel filter screen.
Preferably, the return spring is a cylindrical stainless steel spring and is positioned between the fixing cap and the self-control rubber plug.
Preferably, the air release cylinder is longitudinally and threadedly connected to the middle position in the upper end enclosure and is communicated with the double-chamber balance container cylinder body, and the air release cylinder is specifically an aluminum alloy cylinder.
Preferably, the two connecting seats are arranged and are respectively and longitudinally bolted at the middle positions of the upper part and the lower part of the right side of the double-chamber balance container barrel.
Preferably, the telescopic adjusting rod adopts two three-level stainless steel telescopic rods.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, the arrangement of the double-chamber balance container barrel, the upper connecting pipe, the lower connecting pipe, the blow-off pipe, the condensing coil, the negative pressure pipe and the boiler is favorable for continuously condensing saturated steam entering the condensing coil through the double-chamber balance container barrel into water, transmitting the pressure generated by the condensed water to the negative pressure side of the differential pressure transmitter, and when the condensed water is full of the whole condensing coil, the condensed water flows back to the double-chamber balance container barrel, and when the water level of the condensed water in the double-chamber balance container barrel is lower than that of the condensing coil, the condensed water is supplemented by steam pocket steam; when the water level of the condensed water in the double-chamber balance container cylinder is higher than the condensing coil, the water flows back to the boiler steam drum through the vapor phase connecting pipe, so that the water level height of the double-chamber balance container cylinder is kept unchanged all the time; because the horizontal position of the condensing coil is positioned at the same horizontal plane with the upper connecting pipe and the lower connecting pipe due to the structural characteristics of the condensing coil, the constant water level of the balance container and the upper connecting pipe and the lower connecting pipe can be ensured to be positioned at the same horizontal plane without great change no matter how the pressure of a steam drum rises or falls, the ambient temperature and the like change; under the condition that the constant water level is not changed, the differential pressure transmitter carries out 100% negative migration, on the basis, data obtained through calculation of the differential pressure transmitter are more accurate, measurement errors are reduced, measurement accuracy is improved, and meanwhile, the operation safety coefficient is improved.
2. In the invention, the double-chamber balance container barrel is favorable for collecting condensed water flowing back from the condensing coil, discharging the condensed water into the downcomer of the boiler, heating and storing heat for the whole container in the flowing process, ensuring the temperature in the container and the steam drum to be consistent, and further ensuring the accuracy of the measuring result.
3. According to the invention, the arrangement of the T-shaped communicating vessel is beneficial to ensuring that the water level height of the communicating vessel changes along with the water level of the steam drum, so that the pressure of the positive pressure side changes along with the pressure change of the boiler steam drum, the measurement accuracy is further ensured, the liquid level measurement error is reduced, and the detection efficiency is improved.
4. According to the invention, the upper sealing head, the lower sealing head and the double-chamber balance container cylinder are arranged, so that the upper sealing head and the lower sealing head can be taken down, devices and impurities in the double-chamber balance container cylinder can be cleaned, the operation is convenient, and the convenience in operation is ensured.
5. In the invention, the arrangement of the sewage discharge pipe is beneficial to discharging sewage in the double-chamber balance container barrel, the convenience in operation is ensured, and the operation safety is improved.
6. In the invention, the arrangement of the condensing coil pipe is beneficial to condensing water and can ensure the measurement accuracy.
7. In the invention, the arrangement of the upper connecting pipe and the lower connecting pipe is beneficial to connecting a boiler steam drum, and the convenience of liquid level measurement is ensured.
8. According to the invention, the sewage treatment barrel, the treatment core, the cleaning bolt, the impurity filtering net, the cleaning cover and the discharge pipe with the valve are arranged, so that the discharged sewage is favorably treated, the environment pollution during discharge is avoided, the sewage discharged from the sewage discharge pipe can be treated through the treatment core in the sewage treatment barrel, impurities are filtered through the impurity filtering net, the waste water can be discharged by opening the valve with the valve discharge pipe, the waste water can be discharged into a sewage treatment pool or a sewage discharge pipeline, the environmental pollution is avoided, and the treatment core can be cleaned or replaced by taking down the cleaning cover and the cleaning bolt, so that the operation is convenient.
9. In the invention, the arrangement of the air release cylinder, the exhaust pipe, the fixing cap, the self-control rubber plug, the self-control rod, the reset spring and the split ring is favorable for playing the role of exhausting, improving the safety of the device and avoiding the explosion danger caused by overlarge air pressure, the air in the double-chamber balance container cylinder can be discharged through the air release cylinder, if the air pressure in the double-chamber balance container cylinder is overlarge, the air can pass through the air release cylinder and push the self-control rubber plug upwards, so that the self-control rod moves in the reset spring and the fixing cap until the self-control rubber plug is pushed to the upper part of the exhaust pipe, the air can be discharged instantly, the air release operation can be carried out, then the reset spring releases energy to push the self-control rubber plug back to the original position, the one-time exhausting work can be finished, and the air pressure stability in the double-chamber balance container cylinder can be ensured, thereby ensuring the operation safety of the device.
10. According to the invention, the arrangement of the vertical bubble beads, the connecting seat, the movable bolt and nut, the telescopic adjusting rod, the mounting seat, the supporting adjusting frame and the mounting bolts is beneficial to fixedly mounting the device, the operation is convenient, the supporting adjusting frame can be mounted at a proper position of a boiler through the mounting bolts, the vertical mounting condition of the device is determined through the vertical bubble beads, the movable bolt and nut are loosened, the position of the telescopic adjusting rod between the connecting seat and the mounting seat is adjusted in a telescopic mode, the verticality of the device is determined, and the movable bolt and nut are locked, so that the stable mounting work can be carried out.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a right side view of the present invention.
Fig. 3 is a schematic structural view of a structure of a sewage treatment antifouling discharge pipe of the present invention.
Fig. 4 is a structural schematic diagram of the automatic control release pipe structure for preventing the steam pressure from being too high.
FIG. 5 is a schematic structural view of the adjustable support mount structure of the present invention.
In the figure:
1. a dual chamber balance vessel barrel; 2. an upper end enclosure; 3. a lower end enclosure; 4. an upper connecting pipe; 5. a lower connecting pipe; 6. a T-shaped communicating vessel; 7. a positive pressure pipe; 8. a blow-off pipe; 9. a condenser coil; 10. a negative pressure tube; 11. a boiler; 12. a drum vapor phase conduit; 13. the pollution discharge treatment antifouling discharge pipe structure; 131. a sewage treatment cartridge; 132. a processing core; 133. cleaning the bolt; 134. filtering the impurity net; 135. cleaning the cover; 136. a calandria with valve; 14. an automatic control release pipe structure for preventing overhigh steam pressure; 141. releasing the inflator; 142. an exhaust pipe; 143. a fixing cap; 144. a self-control rubber plug; 145. a self-control lever; 146. a return spring; 147. a split ring; 15. an adjustable support mounting frame structure; 151. vertical bubble beads; 152. a connecting seat; 153. a linking seat; 154. a movable bolt and a nut; 155. a telescopic adjusting rod; 156. a mounting seat; 157. supporting the adjusting frame; 158. and (6) installing a bolt.
Detailed Description
The invention is described in detail with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, the liquid level measuring device of the double-chamber balance container comprises a double-chamber balance container cylinder 1, an upper seal head 2, a lower seal head 3, an upper connecting pipe 4, a lower connecting pipe 5, a T-shaped communicating vessel 6, a positive pressure pipe 7, a blow-off pipe 8, a condensing coil pipe 9, a negative pressure pipe 10, a boiler 11, a steam pocket vapor phase conduit 12, a blow-off treatment antifouling discharge pipe structure 13, an anti-steam over-high automatic control release pipe structure 14 and an adjustable support mounting frame structure 15, wherein the upper end of the double-chamber balance container cylinder 1 is in threaded connection with the upper seal head 2, and the lower end of the double-chamber balance container cylinder 1 is in threaded connection with the lower seal head 3; the upper and lower inlets on the left side of the double-chamber balance container barrel 1 are respectively connected with an upper connecting pipe 4 and a lower connecting pipe 5 in a transverse threaded manner; the T-shaped communicating vessel 6 is inversely positioned at the left side in the double-chamber balance container barrel 1, and the horizontal part at the lower part is positioned in the lower end enclosure 3; one end of the inverted lower horizontal part of the T-shaped communicating vessel 6 is in threaded connection with the lower connecting pipe 5, and the other end of the inverted lower horizontal part is in threaded connection with the upper end of the longitudinally arranged positive pressure pipe 7; the sewage discharge pipe 8 is longitudinally and threadedly connected to the right side in the lower end enclosure 3 and is communicated with the double-chamber balance container barrel 1; one end of the condensing coil pipe 9 is in threaded connection with an upper outlet of the double-chamber balance container barrel 1, and the other end of the condensing coil pipe is in threaded connection with an upper inlet of the negative pressure pipe 10; the horizontal position of the condensing coil 9 and the upper connecting pipe and the lower connecting pipe are in the same horizontal plane; the outlets of the upper part and the lower part of the right side of the boiler 11 are respectively connected with a steam drum vapor phase conduit 12 in a transverse threaded manner; the upper connecting pipe 4 and the lower connecting pipe 5 are respectively in threaded connection with the steam drum vapor phase conduit 12; the sewage discharge treatment antifouling discharge pipe structure 13 is connected with the sewage discharge pipe 8; the automatic control release pipe structure 14 for preventing the steam pressure from being too high is connected with the upper seal head 2; the adjustable supporting and mounting frame structure 15 is connected with the double-chamber balance container barrel 1, the positive pressure pipe 7 is connected with the positive pressure side of the differential pressure transmitter, the negative pressure pipe 10 is connected with the negative pressure side of the differential pressure transmitter, the upper connecting pipe 4 and the lower connecting pipe 5 are respectively connected with the boiler 11 through the steam pocket vapor phase conduit 12, saturated steam entering the condensing coil 9 through the double-chamber balance container barrel 1 is continuously condensed into water, the pressure generated by the condensed water is transmitted to the negative pressure side of the differential pressure transmitter, the condensed water flows back to the double-chamber balance container barrel 1 after the whole condensing coil 9 is filled with the condensed water, and the condensed water in the double-chamber balance container barrel 1 is supplemented by the condensed water of the steam pocket steam when the water level of the condensed water is lower than that of the condensing coil 9; when the water level of the condensed water in the double-chamber balance container cylinder 1 is higher than the condensing coil 9, the water flows back to a boiler 11 steam drum through a vapor phase connecting pipe, so that the water level height of the double-chamber balance container cylinder 1 is always kept unchanged; because the horizontal position of the condensing coil 9 is in the same horizontal plane with the upper connecting pipe 4 and the lower connecting pipe 5 all the time due to the structural characteristics of the condensing coil, no matter how the pressure of a steam drum rises or falls, the ambient temperature and the like change, the constant water level of the balance container can be ensured to be in the same horizontal plane with the upper connecting pipe 4 and the lower connecting pipe 5, and the change is not large; under the condition that the constant water level is not changed, the differential pressure transmitter carries out 100% negative migration, and on the basis, the data obtained through calculation of the differential pressure transmitter is more accurate.
In this embodiment, referring to fig. 3, the structure 13 of the anti-soil discharge pipe for sewage disposal includes a sewage disposal cylinder 131, a disposal core 132, a cleaning bolt 133, a trash filter 134, a cleaning cover 135 and a discharge pipe with a valve 136, wherein the disposal core 132 is longitudinally disposed inside the sewage disposal cylinder 131 and is fastened and connected by the cleaning bolt 133; the lower side in the sewage treatment cylinder 131 is connected with a trash filter 134 through screws; the lower end of the sewage treatment barrel 131 is in threaded connection with a cleaning cover 135; cleaning cover 135's inside intermediate position exit threaded connection area valve calandria 136, can handle 8 exhaust sewage through the inside processing core 132 of sewage treatment section of thick bamboo 131, and strain miscellaneous through straining miscellaneous net 134, the accessible is opened the valve of taking valve calandria 136, discharge waste water, can arrange to sewage treatment pond or sewage pipes in, avoid environmental pollution, through taking off cleaning cover 135 and cleaning bolt 133, can clear up or change processing core 132, convenient operation.
In this embodiment, as shown in fig. 4, the automatic control release pipe structure 14 for preventing the steam over-high pressure comprises an air release cylinder 141, an exhaust pipe 142, a fixing cap 143, an automatic control rubber stopper 144, an automatic control rod 145, a return spring 146 and a split ring 147, wherein the exhaust pipe 142 is respectively connected to the outlets at the middle positions of the left side and the right side of the air release cylinder 141 in a threaded manner; the upper end of the air release cylinder 141 is in threaded connection with a fixing cap 143; the self-control rubber plug 144 is movably arranged at the lower side in the air release cylinder 141; one longitudinal end of the self-control rod 145 is in threaded connection with the inside of the self-control rubber plug 144, and the other end of the self-control rod penetrates through the through hole in the middle of the inside of the fixing cap 143; the reset spring 146 is sleeved on the outer wall of the automatic control rod 145; the split ring 147 is sleeved inside an annular groove formed in the outer wall of the upper portion of the self-control rod 145, gas inside the double-chamber balance container barrel 1 can be discharged through the gas release barrel 141, if the gas pressure inside the double-chamber balance container barrel 1 is too high, the gas can pass through the inside of the gas release barrel 141 and upwards push the self-control rubber plug 144, the self-control rod 145 can move inside the reset spring 146 and the fixing cap 143 until the self-control rubber plug 144 is pushed to the upper portion of the exhaust pipe 142, the gas can be instantly discharged, the gas release operation can be performed, then, due to the fact that the gas pressure is too low, the reset spring 146 releases energy, the self-control rubber plug 144 is pushed back to the original position, one-time exhaust work can be completed, the stability of the gas pressure inside the double-chamber balance container barrel 1 can be guaranteed, and the operation safety of the device can be further guaranteed.
In this embodiment, referring to fig. 5, the adjustable supporting and mounting structure 15 includes a vertical bubble bead 151, a connecting seat 152, a connecting seat 153, a movable bolt and nut 154, a telescopic adjusting rod 155, a mounting seat 156, a supporting and adjusting frame 157 and a mounting bolt 158, wherein the vertical bubble bead 151 is longitudinally embedded in the middle position inside the connecting seat 152; a connecting seat 153 is welded at the middle position of the right side of the connecting seat 152; one end of the telescopic adjusting rod 155 is coupled to the middle position inside the mounting seat 156, and the other end is mounted to the middle position inside the connecting seat 153 through a movable bolt and nut 154; the mounting base 156 is respectively bolted at the middle positions of the upper part and the lower part of the left side of the supporting and adjusting frame 157; the four corners of the inside of the supporting and adjusting frame 157 are respectively connected with mounting bolts 158 in a transverse threaded manner, the supporting and adjusting frame 157 can be mounted at a proper position of the boiler 11 through the mounting bolts 158, the vertical mounting condition of the device is determined through the vertical bubble beads 151, the movable bolt nuts 154 are loosened, the position of the telescopic adjusting rod 155 between the connecting seat 153 and the mounting seat 156 is adjusted in a telescopic manner, the verticality of the device is determined, and the movable bolt nuts 154 are locked, so that the stable mounting work can be carried out.
In this embodiment, specifically, the upper end of the sewage treatment cylinder 131 is in threaded connection with the lower end of the sewage discharge pipe 8.
In this embodiment, the treatment core 132 specifically adopts an activated carbon adsorption core with an inverted trapezoidal longitudinal section, and the impurity filtering net 134 specifically adopts a circular stainless steel filter screen.
In this embodiment, specifically, the return spring 146 is a cylindrical stainless steel spring, and is located between the fixing cap 143 and the self-control rubber plug 144.
In this embodiment, specifically, the gas releasing cylinder 141 is longitudinally screwed in the middle position inside the upper end enclosure 2 and is communicated with the dual-chamber balance container cylinder 1, and the gas releasing cylinder 141 is specifically an aluminum alloy cylinder.
In this embodiment, specifically, two connecting seats 152 are provided, and are respectively and longitudinally bolted at the middle positions of the upper part and the lower part of the right side of the dual-chamber balance container barrel 1.
In this embodiment, specifically, the telescopic adjusting rod 155 adopts two three-stage stainless steel telescopic rods.
Principle of operation
In the invention, a positive pressure pipe 7 is connected with the positive pressure side of a differential pressure transmitter, a negative pressure pipe 10 is connected with the negative pressure side of the differential pressure transmitter, an upper connecting pipe 4 and a lower connecting pipe 5 are respectively connected with a boiler 11 through a steam pocket vapor phase conduit 12, saturated steam entering a condensing coil 9 through a double-chamber balance container barrel 1 is continuously condensed into water, the pressure generated by the condensed water is transmitted to the negative pressure side of the differential pressure transmitter, the condensed water flows back to the double-chamber balance container barrel 1 after the whole condensing coil 9 is filled with the condensed water, and the condensed water in the double-chamber balance container barrel 1 is supplemented by the condensed water of the steam pocket when the water level of the condensed water is lower than that of the condensing coil 9; when the water level of the condensed water in the double-chamber balance container cylinder 1 is higher than the condensing coil 9, the water flows back to a boiler 11 steam drum through a vapor phase connecting pipe, so that the water level height of the double-chamber balance container cylinder 1 is always kept unchanged; because the horizontal position of the condensing coil 9 is in the same horizontal plane with the upper connecting pipe 4 and the lower connecting pipe 5 all the time due to the structural characteristics of the condensing coil, no matter how the pressure of a steam drum rises or falls, the ambient temperature and the like change, the constant water level of the balance container can be ensured to be in the same horizontal plane with the upper connecting pipe 4 and the lower connecting pipe 5, and the change is not large; under the condition that the constant water level is not changed, the differential pressure transmitter carries out 100% negative migration, and on the basis, the data obtained through calculation of the differential pressure transmitter is more accurate.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.
Claims (10)
1. The liquid level measuring device is characterized by comprising a double-chamber balance container barrel body (1), an upper end enclosure (2), a lower end enclosure (3), an upper connecting pipe (4), a lower connecting pipe (5), a T-shaped communicating vessel (6), a positive pressure pipe (7), a blow-off pipe (8), a condensing coil pipe (9), a negative pressure pipe (10), a boiler (11), a steam pocket vapor phase conduit (12), a blow-off treatment antifouling discharge pipe structure (13), a steam pressure overhigh prevention automatic control release pipe structure (14) and an adjustable support mounting frame structure (15), wherein the upper end of the double-chamber balance container barrel body (1) is in threaded connection with the upper end enclosure (2), and the lower end of the double-chamber balance container barrel body (1) is in threaded connection with the lower end enclosure (3); the upper and lower inlets on the left side of the double-chamber balance container cylinder (1) are respectively connected with an upper connecting pipe (4) and a lower connecting pipe (5) in a transverse threaded manner; the T-shaped communicating vessel (6) is inversely positioned at the left side in the double-chamber balance container cylinder body (1), and the horizontal part at the lower part is positioned in the lower end enclosure (3); one end of the inverted lower horizontal part of the T-shaped communicating vessel (6) is connected with a lower connecting pipe (5) in a threaded manner, and the other end of the inverted lower horizontal part of the T-shaped communicating vessel is connected with the upper end of a vertical pressure pipe (7) in a threaded manner; the sewage discharge pipe (8) is longitudinally and threadedly connected to the right side in the lower seal head (3) and is communicated with the double-chamber balance container barrel (1); one end of the condensing coil (9) is in threaded connection with an upper outlet of the double-chamber balance container barrel (1), and the other end of the condensing coil is in threaded connection with an upper inlet of the negative pressure pipe (10); the horizontal position of the condensing coil (9) is positioned on the same horizontal plane with the upper connecting pipe and the lower connecting pipe; the outlets of the upper part and the lower part of the right side of the boiler (11) are respectively connected with a steam drum vapor-phase conduit (12) in a transverse threaded manner; the upper connecting pipe (4) and the lower connecting pipe (5) are respectively in threaded connection with the steam drum vapor phase conduit (12); the structure (13) of the pollution discharge treatment antifouling discharge pipe is connected with the sewage discharge pipe (8); the automatic control release pipe structure (14) for preventing the steam pressure from being overhigh is connected with the upper seal head (2); the adjustable supporting and mounting frame structure (15) is connected with the double-chamber balance container cylinder body (1).
2. A double-chamber balance container liquid level measuring device according to claim 1, characterized in that the structure (13) of the sewage treatment anti-pollution discharge pipe comprises a sewage treatment cylinder (131), a treatment core (132), a cleaning bolt (133), a trash screen (134), a cleaning cover (135) and a valve row pipe (136), wherein the treatment core (132) is longitudinally arranged inside the sewage treatment cylinder (131) and is fixedly connected and arranged through the cleaning bolt (133); the lower side in the sewage treatment cylinder (131) is connected with a impurity filtering net (134) by screws; the lower end of the sewage treatment barrel (131) is in threaded connection with a cleaning cover (135); the outlet of the middle position in the cleaning cover (135) is connected with a valve exhaust pipe (136) in a threaded manner.
3. The liquid level measuring device of the double-chamber balancing container according to claim 1, characterized in that the automatic control release pipe structure (14) for preventing the vapor pressure from being too high comprises a gas release cylinder (141), an exhaust pipe (142), a fixed cap (143), an automatic control rubber plug (144), an automatic control rod (145), a return spring (146) and a split ring (147), wherein the exhaust pipe (142) is respectively connected with the outlets at the middle positions of the left side and the right side of the gas release cylinder (141) in a threaded manner; the upper end of the air releasing cylinder (141) is in threaded connection with a fixing cap (143); the self-control rubber plug (144) is movably arranged at the lower side in the gas releasing cylinder (141); one longitudinal end of the automatic control rod (145) is in threaded connection with the inside of the automatic control rubber plug (144), and the other end of the automatic control rod penetrates through the inside of a through hole in the middle of the inside of the fixing cap (143); the reset spring (146) is sleeved on the outer wall of the automatic control rod (145); the split ring (147) is sleeved in an annular groove formed in the outer wall of the upper portion of the automatic control rod (145).
4. A double-chamber balance container liquid level measuring device according to claim 1, characterized in that the adjustable supporting mounting frame structure (15) comprises a vertical bubble bead (151), a connecting seat (152), a connecting seat (153), a movable bolt nut (154), a telescopic adjusting rod (155), a mounting seat (156), a supporting adjusting frame (157) and a mounting bolt (158), wherein the vertical bubble bead (151) is longitudinally embedded in the middle position inside the connecting seat (152); the middle position of the right side of the connecting seat (152) is welded with a connecting seat (153); one end of the telescopic adjusting rod (155) is coupled to the middle position inside the mounting seat (156) in a shaft mode, and the other end of the telescopic adjusting rod is mounted to the middle position inside the connecting seat (153) through a movable bolt and nut (154); the mounting base (156) is respectively bolted at the middle positions of the upper part and the lower part of the left side of the supporting and adjusting frame (157); the four corners of the inside of the supporting and adjusting frame (157) are respectively connected with mounting bolts (158) in a transverse threaded manner.
5. A double chamber balancing container liquid level measuring device according to claim 2, characterized in that the upper end of the sewage treatment cartridge (131) is screwed with the lower end of the sewage draining pipe (8).
6. A dual chamber balance container level gauge as claimed in claim 2, wherein said processing core (132) is an activated carbon adsorption core with a longitudinal section of inverted trapezoid, and said trash screen (134) is a round stainless steel screen.
7. A dual chamber balancing container level gauge according to claim 3, wherein the return spring (146) is a cylindrical stainless steel spring and is located between the locking cap (143) and the self-controlling rubber stopper (144).
8. A double-chamber balance container liquid level measuring device according to claim 3, characterized in that the gas releasing cylinder (141) is longitudinally screwed in the middle position of the upper end enclosure (2) and is communicated with the double-chamber balance container cylinder (1), and the gas releasing cylinder (141) is an aluminum alloy cylinder.
9. A double chamber balancing container liquid level measuring device according to claim 4, characterized in that, the connecting seat (152) is provided with two and is respectively and longitudinally bolted at the middle position of the upper and lower parts of the right side of the double chamber balancing container barrel (1).
10. A double chamber balancing container level measuring device according to claim 4, characterized in that the telescopic adjusting rod (155) is two three-stage stainless steel telescopic rods.
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