CN219178856U

CN219178856U - Box intensity airtight and volume measurement system

Info

Publication number: CN219178856U
Application number: CN202223483489.1U
Authority: CN
Inventors: 朱云
Original assignee: Ziyang Sunfull Tianqin Science And Technology Co ltd
Current assignee: Ziyang Sunfull Tianqin Science And Technology Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-06-13
Anticipated expiration: 2032-12-26

Abstract

The utility model provides a box intensity airtight and volume measurement system which comprises a tower, a weighing platform, a liquid level meter and a test bed. One side of the tower is provided with an inlet for the storage tank. The weighing platform is arranged on the ground and positioned inside the tower. The test bed comprises a control unit, a high-pressure water source, a high-pressure air source and a pressure gauge. The high-pressure water source is used for connecting with a water filling port of the storage tank. The high-pressure air source is used for connecting with the pressurizing port of the storage tank. The pressure gauge is used for connecting with a pressure gauge interface of the storage tank. The pressure gauge is electrically connected to the control unit. When in use, the storage box is vertically placed on the weighing platform. And (5) injecting the detection liquid or pressurizing the storage tank through the control of the test bed so as to perform tightness inspection on the welding line of the storage tank. The volume of the storage tank under the current liquid level can be calculated by calculating the weight of the liquid in the storage tank and combining the liquid level and the liquid density. The tightness and volume measuring system for the strength of the tank body can conveniently test the parameters such as tightness and volume of the storage tank.

Description

Box intensity airtight and volume measurement system

Technical Field

The utility model relates to the technical field of storage tank testing devices, in particular to a system for measuring strength, air tightness and volume of a tank body.

Background

The strength and air tightness test of the liquid carrier rocket storage tank is to seal each flange on the bottom of the storage tank, fill test solution or gas with certain pressure into the storage tank to perform tightness test on the welding seam of the storage tank, and test whether the pressure maintaining and sealing requirements of products are met. The volume measurement of the storage tank means that the liquid level meter in the storage tank finishes the volume measurement of the product according to different liquid level height requirements.

The diameter of the storage tank is 3350mm and 3800mm, the maximum height of the storage tank with the diameter of 3350 is 18000mm, and the maximum weight is 5000Kg. The diameter 3800 storage tank maximum height is 12000mm, and the maximum weight is 3000Kg. The storage tank has larger volume and heavier weight, and is troublesome in carrying out various index tests.

Disclosure of Invention

The utility model aims to provide a box intensity airtight and volume measurement system which can conveniently test a plurality of parameters of a storage box.

The embodiment of the utility model is realized by the following technical scheme:

a box intensity airtight and volume measurement system comprises a tower, a weighing platform, a liquid level meter and a test bed; an inlet for the storage box to enter is formed in one side of the tower; the weighing platform is arranged on the ground and positioned in the tower; the test bed comprises a control unit, a high-pressure water source, a high-pressure air source and a pressure gauge; the high-pressure water source is used for connecting a water injection port of the storage tank; the high-pressure air source is used for connecting a pressurizing port of the storage tank; the pressure gauge is used for connecting a pressure gauge interface of the storage tank; the pressure gauge is electrically connected to the control unit.

Further, the towers include foundation towers and booster towers; the heightening tower frame is arranged at the top end of the foundation tower frame and is connected through bolts.

Further, the foundation tower is provided with three layers, and each layer is provided with an operation platform; each layer of operation platform is provided with a cleaning spray head and an air injection spray head.

Further, the weighing platform comprises a weighing plate and a weighing sensor arranged between the weighing plate and the ground; the weighing sensors are provided with four sensors; four weighing sensors are distributed at four corners of the weighing plate.

Further, the weighing plate is also detachably provided with a supporting frame; the supporting frame is connected to the upper surface of the weighing plate through bolts; the upper surface of the supporting frame is provided with a round hole for accommodating the storage box.

Further, a ZZYP self-operated regulating valve, an air storage tank, a pneumatic pressure reducing valve, a pipeline filter and a safety valve are connected between the pressurizing port and the high-pressure air source.

Further, the water injection port is connected with a water injection pump, so that a high-pressure water source generated by the water injection pump is injected through the water injection port; and a pressurizing pump, a filter and a safety valve are further connected between the water injection port and the water injection pump.

Further, a pit is arranged at the bottom of the tower; the weighing plate cover is arranged above the pit; the bottom of the weighing plate is provided with square installation overhauling holes.

Further, the test stand is also provided with a densitometer for measuring the density of the test liquid.

Further, the hot air dryer is also included; the hot air dryer is used for drying the storage box.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

when the box intensity airtight and volume measurement system is used, the storage box to be tested is vertically placed on the weighing platform. At this point, the storage tank is inside the tower. The tower encloses the storage box, so that an operator can conveniently detect or otherwise operate the outside of the storage box at each layer of the tower. The tower can also provide a certain supporting protection for the storage tank. Then, the high-pressure water source is controlled by the test bed to inject detection liquid into the storage tank, or the high-pressure air source is controlled by the test bed to pressurize the storage tank so as to carry out tightness inspection on the welding line of the storage tank. The pressure gauge is used to monitor the pressure in the tank so that the pressure in the tank reaches a suitable value. In addition, the liquid level meter measures the liquid level in the storage tank, and the weighing platform tests the total weight of the storage tank and the liquid in the storage tank. The volume of the storage tank under the current liquid level can be calculated by calculating the weight of the liquid in the storage tank and combining the liquid level and the liquid density. The tightness and volume measuring system for the strength of the tank body can conveniently test the parameters such as tightness and volume of the storage tank.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a system for measuring the strength, air tightness and volume of a box body according to the present utility model;

FIG. 2 is a top view of the tank strength airtight and volume measurement system.

Icon: 1-tower, 11-operation platform, 2-weighing platform, 21-weighing plate, 22-weighing sensor, 23-support frame, 24-installation manhole, 3-pit, 4-storage box.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which a product of the application is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

as shown in fig. 1 and 2, the utility model provides a box strength airtight and volume measurement system, which comprises a tower 1, a weighing platform 2, a liquid level meter and a test bed. One side of the tower 1 is provided with an access opening into which the storage tank 4 is placed, facilitating the hanging of the storage tank 4 from the side of the tower 1 into the interior of the tower 1. The weighing platform 2 is arranged on the ground and is positioned inside the tower 1. The test bed comprises a control unit, a high-pressure water source, a high-pressure air source and a pressure gauge. The high-pressure water source is used for connecting with a water filling port of the storage tank 4. The high pressure air source is used to connect the pressurizing port of the tank 4. The pressure gauge is used for connecting with a pressure gauge interface of the storage tank 4. The pressure gauge is electrically connected to the control unit.

When the box intensity airtight and volume measurement system is used, the storage box 4 to be tested is vertically placed on the weighing platform 2. At this point, the tank 4 is located inside the tower 1. The tower 1 encloses the tank 4, facilitating detection or other manipulation of the outside of the tank 4 by an operator at various levels of the tower 1. The tower 1 may also provide a certain supporting protection for the tank 4. Subsequently, the high-pressure water source is controlled by the test bed to inject the detection liquid into the storage tank 4, or the high-pressure air source is controlled by the test bed to pressurize the storage tank 4 so as to perform tightness check on the welding seam of the storage tank 4. The pressure gauge is used to monitor the pressure in the tank 4 so that the pressure in the tank 4 reaches a suitable value. In addition, the liquid level meter measures the liquid level in the storage tank 4, and the weighing platform 2 tests the total weight of the storage tank 4 and the liquid in the storage tank. The volume of the storage tank 4 at the current liquid level can be calculated by calculating the weight of the liquid in the storage tank 4 and combining the liquid level and the liquid density. The tightness and volume parameters of the storage tank 4 can be conveniently tested by the system for measuring the strength, the tightness and the volume of the tank.

In this embodiment, the tower 1 includes a foundation tower 1 and an elevated tower 1. The heightened tower 1 is arranged at the top end of the foundation tower 1 and is connected through bolts. The total height of the foundation tower 1 is 13m, the height of the movable heightened tower 1 is 5m, and the center diameter is 3.6 m. The foundation tower 1 is used for testing a 12-meter box body. The heightened tower 1 is used for testing 18 m boxes. When the 18-meter box body is tested, the heightened tower 1 is hoisted to the original foundation tower 1 by utilizing a steam crane and is rigidly connected by bolts, and the connection is firm and reliable, and the installation and the disassembly are convenient.

The overall dimension of the foundation tower 1 is 6m multiplied by 13m (divided into 4 layers), the first layer is 3m high, and the rest layers are 2.5 m each; the middle of each layer is a hollow hole with the diameter of 4050 mm; the holes of each layer are concentric circles (for testing the phi 3800 reservoir 4), and the tower 1 can also be telescopic to phi 3600mm (for testing the phi 3350 reservoir 4). The storage tank 4 with the diameter of 3.8 meters or 3.35 meters can be enclosed to form a working platform for detecting the leakage of the welding line. The circumference of the hole is formed by bending channel steel, and the side of the channel steel facing the storage tank 4 is covered by rubber, so that the storage tank 4 is prevented from being damaged in the hoisting process. The positions of each layer on two sides of the inlet are hinged with turning plates; the turning plate is controlled by a winch. The two turning plates are lowered and flush with the operating platform 11 of the layer, so that the personnel can walk conveniently. The test blanking cover, the check weld and the volume measurement are convenient for operators and inspectors to install during the test of the storage tank 4; when the turning plate is lifted, the inlet is opened, so that the storage box 4 can conveniently enter and exit.

In addition, each layer of the tower 1 is provided with a cleaning valve and a cleaning pipeline, the length of the cleaning pipeline is 30 meters, the cleaning pipeline is provided with a cleaning spray head, the highest cleaning pressure is 4MPa, and the cleaning valve is in a quick joint mode. The outer wall of the storage tank 4 can be cleaned by cleaning the spray head. Each layer of the tower 1 is also provided with an air supply valve and an air injection nozzle for blowing the box body, the highest working pressure is not more than 0.8MPa, and each layer of the tower 1 is also provided with a power socket, a safety alarm device and the like.

In this embodiment, the weighing platform comprises a weighing plate 21 and a load cell 22 arranged between the weighing plate 21 and the ground. The load cells 22 are provided with four. Four load cells 22 are distributed at four corners of the weighing plate 21. The weighing plate 21 is also detachably provided with a support frame 23. The supporting frame 23 is connected to the upper surface of the weighing plate 21 by bolts. The upper surface of the supporting frame 23 is provided with a round hole for accommodating the storage tank 4. The end of the storage tank 4 is spherical. When the storage tank 4 is placed in the round hole, the bottom of the storage tank 4 passes through the round hole to the lower part of the round hole, and the part contacted with the edge of the round hole is placed in the round hole, so that the storage tank 4 is stably supported by the periphery of the round hole.

In order to meet the supporting test of products of two specifications, namely a phi 3350 box body and a phi 3800 box body, the supporting frame 23 is divided into two types. First kind: the height of the ring and the weighing platform 2 is 1400mm, and the middle part is formed by welding an upright post and a supporting plate. The round hole at the upper part is a circular ring with the inner diameter not smaller than 3650mm and the outer diameter not larger than 3850 m; the thickness of the circular ring is not less than 20mm, the upper end face of the circular ring needs to be subjected to leveling machining, the parallelism between the circular ring and the weighing platform 2 is kept within a tolerance allowable range (less than 0.5 mm), the coaxiality of the circular ring and the center of a circle of 1 phi 4100mm of the test tower is less than 2mm, the vertical pressure of not less than 240T can be born, and the supporting test of the phi 3800 storage tank 4 can be met. And a locating pin and a bolt hole are reserved on the circular ring, so that the connection with the flange of the storage tank 4 is facilitated. Second kind: the height of the ring and the weighing platform 2 is 1400mm, and the middle part is formed by welding an upright post and a supporting plate. The round hole at the upper part is a circular ring with the inner diameter not smaller than 3230mm and the outer diameter not larger than 3400 m; the thickness of the circular ring is not less than 20mm, the upper end face of the circular ring needs to be subjected to leveling machining, the parallelism between the circular ring and the weighing platform 2 is kept within a tolerance allowable range (less than 0.5 mm), the coaxiality of the supporting ring and the center of a circle of 1 phi 3600mm of the test tower is less than 2mm, the vertical pressure of not less than 240T can be born, 4-phi 14.5+0.1 positioning pin holes are uniformly distributed on the diameter of phi 3292, and the supporting test of the phi 3350 storage tank 4 can be met. And lifting lugs are reserved on the circular ring, so that the disassembly is convenient.

In the embodiment, a ZZYP self-operated regulating valve, an air storage tank, a pneumatic pressure reducing valve, a pipeline filter and a safety valve are connected between the pressurizing port and the high-pressure air source.

The ZZYP self-operated pressure reducing valve is a special device for automatically reducing the working pressure of a pipeline, and can reduce the higher gas pressure of the pipeline in front of the valve to the pressure required by the pipeline behind the valve. The high pressure gas of 22-25 Mpa can be decompressed to 0-3 Mpa. The precise pneumatic pressure reducing valve is a special pressure reducing device which controls the opening height of the pressure reducing valve through 4-20mA current and controls the output pressure within a certain pressure range, and can reduce the higher gas pressure of a pipeline in front of the valve to the pressure required by a pipeline behind the valve. The high pressure gas of 1MPa can be decompressed to 0-1 MPa. The gas holder is installed in the rear end of self-operated relief pressure valve, and after high-pressure gas passes through the relief pressure valve, the volume grow, and the temperature reduces, and the steam in the air will condense on the pipe, in order to eliminate this influence, installs 1 gas holder, is used for the drainage. The pipeline filter is arranged at the rear end of the self-operated constant-pressure type pressure reducing valve, the filtering precision is 50 microns, the pipeline filter can filter out impurities in gas, the service life of the rear end valve is prolonged, and the pollution of the impurities in the gas to the storage tank 4 is reduced. The safety valve is arranged on the test tube, and when the test pressure reaches the setting pressure of the safety valve, the safety valve jumps, and the safety pressure in the test system is removed. The setting pressure of the mechanical safety valve is generally higher than the safety pressure set by the sensor.

Besides, other control valves, meters and pipelines are arranged: the other control valves consist of one-way valves, manual ball valves, manual pressure reducing valves, pneumatic ball valves, digital display pressure gauges, pressure sensors, high-pressure pipelines (divided into hard pipelines and soft pipelines), silencers and the like, and all the overflow parts are made of 304 materials and are used for controlling in airtight tests. Wherein the pneumatic ball valve is provided with a signal feedback device.

In this embodiment, the water injection port is connected with a water injection pump, so that a high-pressure water source generated by the water injection pump is injected through the water injection port. A pressurizing pump, a filter and a safety valve are also connected between the water filling port and the water filling pump.

The water injection pump adopts a pipeline pump, and the brand: in the new world, all the overflow parts are made of 304 materials. The number is 2, and one is a high-flow pipeline pump for earlier stage water injection, specification model: SGR40-200, technical parameters: rated flow is 6.3m/h, the highest lift is 50m, and motor power is 4KW. One is a small flow metering pump, which is used for later water supplementing, specification and model: J-Z1000/1.25, technical parameters: rated flow is 1000L/h, the highest lift is 125 m, and motor power is 1.5KW. The pressurizing pump adopts a high-pressure metering pump, and all the overflowing parts are made of 304 materials. The number is 2 (one by one). Specification and model: J-Z800/3, technical parameters: maximum flow 800L/h, maximum working pressure 3MPa, motor power 1.5KW, and frequency converter drive. The filter is arranged at the front ends of the water injection pump and the pressure pump, the filtering precision is 60 micrometers, impurities in water are filtered out, the service life of a rear-end valve is prolonged, and the pollution to the storage tank 4 is reduced. The safety valve is arranged on the test tube, and when the test pressure reaches the setting pressure of the safety valve, the safety valve jumps, and the safety pressure in the test system is removed. The setting pressure of the mechanical safety valve is generally higher than the safety pressure set by the sensor. The other control valves and pipelines of the static water pressure (strength) test bed consist of one-way valves, manual ball valves, pneumatic ball valves, energy accumulators, mass flow meters, digital display pressure meters, pressure sensors, high-pressure pipelines (divided into hard pipelines and soft pipelines) and the like, and all the overflow parts are made of 304 materials and are used for low-pressure water injection and control during static water pressure test. Wherein, pneumatic ball valve takes signal feedback device, and metal collapsible tube connector link is quick-operation joint, is convenient for change or dismantlement.

In this embodiment, the bottom of the tower 1 is provided with a pit 3. The weighing plate 21 is covered above the pit 3. The bottom of the weighing plate 21 is provided with square mounting manholes 24. When the storage tank 4 is placed on the supporting frame 23, the bottom end of the storage tank 4 is used for connecting equipment such as a high-pressure water source, a high-pressure air source, a pressure gauge and the like. The operator docks these devices or corresponding pipes inside the pit 3 through the installation manhole 24 to the bottom of the tank 4. The arrangement of pit 3 and mounting manholes 24 facilitates the operation of the detection of tank 4.

In this embodiment, the test stand is further provided with a densitometer for measuring the density of the test liquid. The densimeter is used for accurately measuring the density of the test liquid, and further, the volume of the test liquid in the storage tank 4 is calculated better, and further, the volume corresponding to the storage tank 4 at the current liquid level is obtained accurately.

In this embodiment, a hot air dryer is also included. The hot air dryer is used for drying the storage tank 4. The air dryer is mainly used for cleaning and drying the inner surface of the storage tank 4 after the hydraulic strength and air tightness test of the storage tank 4, and the air outlet of the dryer is aligned to the flange opening of the storage tank 4 when the storage tank 4 is in a horizontal placement state, and flowing hot air is injected into the storage tank 4 to dry the inside of the storage tank 4. The equipment is manufactured in a non-calibrated mode, moves to the manhole position of the storage tank 4 during use, dries the inside of the storage tank 4, and is adjustable in design power of 30-90 KW. The diameter of the air outlet is 150mm, the air quantity of the air outlet is 30m 3/min-50 m 3/min, the temperature of the air outlet is 25-60 ℃, the air speed is 5-10 m/s, and the air inlet is provided with a filtering device and removes dust. The movable hot air dryer is of a box-type four-wheel structure and can be manually pushed; the air outlet is of a conical structure, the length of the air outlet conveying pipe is not less than 3.5m, and the air outlet conveying pipe has a certain rigid support; stainless steel material is adopted. The device has the functions of air outlet temperature display, flow display, fan rotating speed display, preset drying temperature, fan rotating speed, drying time and the like, and overheat and overload protection.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A box intensity airtight and volume measurement system, characterized in that: the device comprises a tower (1), a weighing platform (2), a liquid level meter and a test bed; an inlet for the storage tank (4) to enter is formed in one side of the tower (1); the weighing platform (2) is arranged on the ground and is positioned in the tower (1); the test bed comprises a control unit, a high-pressure water source, a high-pressure air source and a pressure gauge; the high-pressure water source is used for connecting a water filling port of the storage tank (4); the high-pressure air source is used for connecting a pressurizing port of the storage tank (4); the pressure gauge is used for connecting a pressure gauge interface of the storage tank (4); the pressure gauge is electrically connected to the control unit.

2. The tank strength airtight and volumetric measurement system according to claim 1, wherein: the tower (1) comprises a foundation tower (1) and an heightened tower (1); the heightening tower (1) is arranged at the top end of the foundation tower (1) and is connected through bolts.

3. The tank strength airtight and volumetric measurement system according to claim 2, wherein: the foundation tower (1) is provided with three layers, and each layer is provided with an operation platform (11); each layer of operation platform is provided with a cleaning spray head and an air injection spray head.

4. A tank strength airtight and volumetric measurement system according to claim 3, wherein: the weighing platform comprises a weighing plate (21) and a weighing sensor (22) arranged between the weighing plate (21) and the ground; the weighing sensors (22) are provided with four sensors; four weighing sensors (22) are distributed at four corners of the weighing plate (21).

5. The tank strength airtight and volumetric measurement system according to claim 4, wherein: the weighing plate (21) is also detachably provided with a supporting frame (23); the supporting frame (23) is connected to the upper surface of the weighing plate (21) through bolts; the upper surface of the supporting frame (23) is provided with a round hole for accommodating the storage tank (4).

6. The tank strength airtight and volumetric measurement system according to claim 5, wherein: the ZZYP self-operated regulating valve, the air storage tank, the pneumatic pressure reducing valve, the pipeline filter and the safety valve are connected between the pressurizing port and the high-pressure air source.

7. The tank strength airtight and volumetric measurement system according to claim 6, wherein: the water injection port is connected with a water injection pump so that a high-pressure water source generated by the water injection pump is injected through the water injection port; and a pressurizing pump, a filter and a safety valve are further connected between the water injection port and the water injection pump.

8. The tank strength airtight and volumetric measurement system according to claim 7, wherein: a pit (3) is arranged at the bottom of the tower (1); the weighing plate (21) is covered above the pit (3); the bottom of the weighing plate (21) is provided with a square installation manhole (24).

9. The tank strength airtight and volumetric measurement system according to claim 8, wherein: the test stand is also provided with a densitometer for measuring the density of the test liquid.

10. The tank strength airtight and volumetric measurement system according to claim 9, wherein: the hot air dryer is also included; the hot air dryer is used for drying the storage box (4).