CN107328452A - A kind of device and its operating method for determining irregular seal cavity volume - Google Patents

Abstract

The invention discloses a device for measuring the volume of an irregular sealed cavity and an operation method thereof. Above, the liquid storage tank communicates with the pressurization device through the first pipeline. The device is connected with the irregular sealed cavity to be measured to form a closed pipeline, and the irregular sealed cavity to be measured is located below the temporary storage liquid container, and there is a device on the first pipeline for controlling the inflow of liquid working medium in the liquid storage tank. The valve of the pressurization device; on the second pipeline, there is a valve for controlling the liquid working medium as the calibration liquid in the temporary storage liquid container to flow into the irregular sealed cavity to be measured. The invention has no limitation on the size of the irregular sealed cavity, has good versatility, is easy to operate, and has high precision, and is suitable for various cavities with complicated internal structures and shapes.

Description

A device for measuring the volume of an irregular sealed cavity and its operating method

technical field

The invention relates to a device for measuring the volume of an irregular sealed cavity, and also relates to an operation method of the device for measuring the volume of an irregular sealed cavity.

Background technique

Compared with the irregular sealed cavity, the volume measurement of the regular sealed cavity is relatively simple. At present, there are many methods for calibrating the volume of a regular sealed cavity, and the accuracy is quite high. However, since the inside of the irregular sealed cavity has an irregular shape, it is difficult to calibrate the volume. Therefore, the calibration methods for the volume of the irregular sealed cavity are very limited.

The existing methods for calibrating the volume of irregularly sealed cavities are usually volume calibration methods, one of which is the gas volume calibration method, that is, first fill the irregularly sealed cavity with gas, and then discharge the gas into a container filled with water A series of complex operations, and calculate the volume of the irregular sealed cavity through mathematical equations. The other is the liquid volume calibration method, which is to fill the irregular sealed cavity with liquid working medium, and calculate the volume of the irregular sealed cavity by measuring the volume of the liquid working medium. There is also a liquid volume calibration method for large irregular sealed cavities, which is to first fill the irregular sealed cavity with liquid, and then add devices such as a liquid barrier to realize the calibration of the volume of the irregular sealed cavity.

However, the above-mentioned various calibration methods have the following defects in the operation process:

⑴ Higher requirements are placed on the internal structure of the irregular sealed cavity. When the internal structure of the cavity is complex or has sharp parts, it is easy to cause damage to the attached devices such as the liquid barrier during operation.

(2) The operation is complicated, and the amount of calculation results is large. During the operation, the residual amount of liquid working fluid is large, resulting in large errors and low accuracy.

(3) For the liquid working medium calibration method, it is difficult to select the type of liquid working medium, and some liquid working medium will cause a certain degree of corrosion to the target material and damage the irregular sealed cavity, thereby increasing the cost.

(4) The existing volume calibration method is suitable for the sealed cavity with small volume. For the sealed cavity with large volume, if the existing volume calibration method cannot realize the filling of the sealed cavity, its volume cannot be measured. Divided into multiple measurements, it will bring the problem of low accuracy and large error. Therefore, the existing volume calibration method has limitations on the size of the sealed cavity and has poor versatility.

Contents of the invention

The first object of the present invention is to provide a device for measuring the volume of an irregular sealed cavity with simple structure, low cost, convenient operation, high precision and wide application range.

The second object of the present invention is to provide an operation method of the above-mentioned device for measuring the volume of an irregular sealed cavity.

The first purpose of the present invention can be achieved by the following measures, a device for measuring the volume of an irregular sealed cavity, characterized in that: it includes a frame, a storage liquid for containing liquid working fluid installed on the frame tank, a temporary storage liquid container for receiving the liquid working medium in the liquid storage tank, a pressurization device and a vacuum pumping device for applying pressure to the temporary storage liquid container, and the liquid storage tank and the temporary storage liquid container are both airtight container, and the liquid storage tank is located above the temporary storage liquid container, the liquid storage tank is connected to the pressurization device through the first pipeline, and the pressurization device is also connected to the temporary storage liquid container and on the connecting pipeline A first valve is provided, and the temporary storage liquid container is respectively connected with the vacuum pumping device and the irregular sealed cavity to be measured through the second pipeline to form a closed pipeline, and the irregular sealed cavity to be measured is located at the Below the temporary storage liquid container, a valve for controlling the liquid working medium in the liquid storage tank to flow into the pressurization device is provided on the first pipeline; The liquid working medium as the calibration liquid flows into the valve of the irregular sealed cavity to be measured.

The present invention can fill the irregular sealed cavity to be measured with liquid working medium for many times by operating the valves set on the pipeline. The volume of the irregular sealed cavity to be measured is measured, so the present invention has no limitation on the size of the irregular sealed cavity to be measured, and has good versatility. Moreover, the invention has the advantages of simple operation process, high precision, low requirements on the internal structure of the sealed cavity, and is suitable for various cavities with complex internal structures and shapes, and has a wide application range.

As a preferred embodiment of the present invention, the frame is an airtight casing, and the liquid storage tank, temporary storage liquid container, pressurization device and vacuum pumping device are all located in the casing, wherein the liquid storage tank Located on the upper part of the housing, the temporary storage liquid container is located in the middle of the housing, the pressurization device is between the liquid storage tank and the temporary storage liquid container, the vacuum pumping device and the irregular sealed cavity to be measured are located in the lower part of the housing.

As a preferred embodiment of the present invention, the device for measuring the volume of the irregular sealed cavity also includes a first recovery pipeline, the first pipeline is mainly composed of a vertical main road and two lateral branches, so The valve on the first pipeline is the first electric three-way valve, the vertical main road is connected to the two horizontal branches through the first electric three-way valve, and the vertical main road is also connected to the bottom surface of the liquid storage tank, One of the transverse branches, as the first recovery pipeline, is also connected to the recovery container outside the casing, and the other transverse branch is also connected to the pressurization device.

As a preferred embodiment of the present invention, the device for measuring the volume of the irregular sealed cavity also includes a second recovery pipeline, the second pipeline is mainly composed of a vertical main road and two lateral branches, so The valves on the second pipeline include a second valve, a third valve and a second electric three-way valve, the second valve is set on the vertical main road, and the vertical main road and one of the horizontal branches The pipe body is connected, and the horizontal branch is used as the second recovery pipeline, one end of which is connected to the recovery container outside the housing, and the other end is connected to the irregular sealed cavity to be measured through the second electric three-way valve, so The third valve is located on the pipe section after the connection between the second recovery pipeline and the main road. One end of the other lateral branch is connected to the vacuum device, and the other end is sealed with the irregularity to be measured through the second electric three-way valve. cavities connected.

As an embodiment of the present invention, the pressurization device adopts a cylinder, and the upper and lower parts of the cylinder respectively have air inlets extending to the casing, which are respectively an upper air inlet and a lower air inlet. The pipelines between the temporary storage liquid containers are respectively connected to the bottom of the cylinder and the top surface of the temporary storage liquid container.

As an improvement of the present invention, the liquid working fluid adopts low-temperature working fluid, which will not cause corrosion to the target material of the irregular sealed cavity, so the cost is low, and the low-temperature working fluid and the irregular sealed cavity The adhesive force of the wall is extremely small and will not remain on the inner wall of the cavity to affect the next operation. Therefore, the calculation result of the present invention is accurate, and the accuracy of the volume calibration of the irregular sealed cavity is further improved.

As a recommended mode of the present invention, the cryogenic working fluid is tetrafluoroethane, difluorodichloromethane or difluorochloromethane, and other existing low temperature working fluid can also be used.

The second object of the present invention can be achieved by the following measures, a method of operation of the above-mentioned device for measuring the volume of the irregular sealed cavity is characterized in that it includes the following steps:

(1) Install the irregular sealed cavity to be measured on the interface of the second electric three-way valve used to connect the irregular sealed cavity to be measured, estimate the volume of the irregular sealed cavity to be measured, prepare the liquid working medium, and The liquid working medium is filled into the liquid storage tank;

(2) Close the interface of the first electric three-way valve used to connect the first recovery pipeline, the interface used to connect the vertical main road of the first pipeline and the third valve, and the other valves are all open;

⑶ Turn on the vacuum device to pump out the air in the entire closed pipeline, so that the entire closed pipeline is in a vacuum state;

(4) Close the interface of the second electric three-way valve used to connect with the vacuum device, and then close the vacuum device;

(5) Close the interface of the second electric three-way valve used to connect with the irregular sealed cavity to be measured, open the first electric three-way valve to connect the interface of the vertical main road of the first pipeline, and the liquid worker in the liquid storage tank Substance enters the temporary storage liquid container as the calibration liquid. When the liquid level of the calibration liquid in the temporary storage liquid container reaches the volume scale C1 of the temporary storage liquid container, the first electric three-way valve is closed for vertical connection with the first pipeline. The interface connected to the main road, and record the volume scale C1 of the temporary storage liquid container;

⑹ Open the second electric three-way valve for the interface connected to the irregular sealed cavity to be measured, and open the booster device to pressurize the calibration liquid in the temporary storage liquid container, and the calibration liquid flows into the irregular sealed cavity to be measured middle;

①When the calibration liquid remains in the temporary storage container, that is, the volume scale C1 of the temporary storage container is greater than the volume V of the irregular sealed cavity to be measured, at this time, close the second electric three-way valve to be used for the measurement of the irregularity. Seal the interface connected to the cavity, record the liquid level and volume scale C2 of the remaining calibration liquid in the temporary storage container, 0<C2≤C1, complete the filling of the irregular sealed cavity to be measured, and turn to step ⑺;

②When the liquid level of the calibration liquid in the temporary storage container is greater than the 0 scale and close to the 0 scale, turn down the valve port of the second valve to make the liquid level of the calibration liquid drop slowly. When the liquid level of the calibration liquid drops to the 0 scale , close the second valve immediately. At this time, the volume scale C1 of the temporary storage liquid container is less than or equal to the volume V of the irregular sealed cavity to be measured, and the second electric three-way valve is closed to be used to connect with the irregular sealed cavity to be measured. Connected interface, open the second valve and the third valve, recover the calibration liquid in the pipeline, after the recovery is completed, close the third valve, open the second electric three-way valve for the interface connected with the vacuum device, open Vacuum device, pump out the air in the entire closed pipeline, so that the entire closed pipeline is in a vacuum state; close the second electric three-way valve for the interface connected with the vacuum device, and then close the vacuum device; open the first electric three-way valve The through valve is used to connect the interface of the vertical main line of the first pipeline. The liquid working medium in the liquid storage tank enters the temporary storage liquid container as the calibration liquid. When the liquid level of the calibration liquid in the temporary storage liquid container reaches the temporary storage liquid When the volume scale C1 of the container is closed, the first electric three-way valve is used for the interface connected to the vertical main road of the first pipeline, and the volume scale C1 of the temporary storage liquid container is recorded; go to step 6; repeat this step N times, N≥1, until the calibration liquid remains in the temporary storage container, record the liquid level volume scale C2 of the remaining calibration liquid in the temporary storage container and the volume scale C1 of the temporary storage container each time, and complete the irregularity to be determined Fill the sealed cavity and go to step ⑻;

(7) Calculate the filling volume of the calibration solution, namely:

V＝C1-C2 Formula ①

⑻ Calculate the filling volume of the calibration solution, namely:

V=C1×N+(C1-C2) Formula ②.

In the step (6) and ① of the present invention, observe the solution amount of the calibration liquid in the temporary storage liquid container, and close the second valve when the flow is nearly finished, so as to avoid the measurement error caused thereby.

After step (7) or (8) of the present invention is completed, the first electric three-way valve is opened to connect the interface of the first recovery pipeline and the third valve, and the liquid working medium remaining in the closed pipeline flows into the recovery container for recovery.

In the step (6) of the present invention, the pressurization device adopts a cylinder, and the upper and lower parts of the cylinder respectively have air inlets extending to the casing, which are respectively the upper air inlet and the lower air inlet, and the upper air inlet and the lower air inlet are respectively entered from the bottom. The air port fills the lower part of the cylinder with gas to push the piston upward, and then opens the second electric three-way valve to connect with the irregular sealed cavity to be measured, and then fills the upper part of the cylinder with gas from the upper air inlet. And the pressure of the gas charged from the upper air inlet is greater than the pressure of the gas charged from the lower air inlet, and the sum of the two is greater than the saturation pressure of the liquid working medium used at the measured temperature, pushing the piston to move downwards, so that it will be at The gas in the lower part of the cylinder is pressed into the temporary storage liquid container, and then the calibration liquid in the temporary storage liquid container flows into the irregular sealed cavity to be measured.

Compared with prior art, the present invention has following remarkable effect:

(1) The operation process of the present invention is simple, has low requirements on the internal structure of the sealed cavity, and is suitable for various cavities with complex internal structures and shapes, and has a wide range of applications.

(2) The present invention can fill the irregular sealing cavity to be measured with liquid working medium for many times by operating the valves set on the pipeline, even if the volume of the irregular sealing cavity to be measured is large, the liquid working medium can be The volume of the irregular sealed cavity to be measured can be measured, therefore, the present invention has no limitation on the size of the irregular sealed cavity to be measured, and has good versatility.

(3) The liquid working medium of the present invention adopts a low-temperature working medium, which has low cost, and the adhesion between the low-temperature working medium and the inner wall of the irregular sealed cavity is extremely small, and it will be vaporized at room temperature, and will not remain on the inner wall of the sealing device to affect the next operation. Therefore, the calculation result of the present invention is accurate and the precision is relatively high.

(4) The present invention has simple structure, low cost, strong practicability, and is suitable for wide popularization and application.

Description of drawings

The invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a schematic diagram of the composition and structure of the present invention.

detailed description

As shown in Figure 1, it is a device for measuring the volume of an irregular sealed cavity according to the present invention, which includes a frame, a liquid storage tank 1 for containing a liquid working medium 15 installed on the frame, a Temporary liquid container 2 of liquid working substance 15 in tank 1, a pressurizing device and a vacuum device for applying pressure to the temporary liquid container 2, the liquid storage tank 1 and the temporary liquid container 2 are airtight containers, and The liquid storage tank 1 is located above the temporary storage liquid container 2. In this embodiment, the frame is an airtight casing 3, and the liquid storage tank 1, the temporary storage liquid container 2, the pressurization device and the vacuum pumping device are all located in the casing 3 Among them, the liquid storage tank 1 is located on the upper part of the housing 3, the temporary storage liquid container 2 is located in the middle of the housing 3, the pressurization device is located between the liquid storage tank 1 and the temporary storage liquid container 2, the vacuum pumping device and the to-be-determined The irregular sealed cavity 4 is located at the lower part of the housing 3, that is, the vacuum pumping device and the irregular sealed cavity 4 to be measured are located below the temporary storage liquid container 2, the vacuum pumping device adopts a vacuum pump 5, and the liquid storage tank 1 passes through the first A pipeline communicates with the pressurization device, and the pressurization device is also connected with the temporary storage liquid container 2 and is provided with a first valve 6 on the connecting pipeline, and the temporary storage liquid container 2 is respectively connected with the vacuum pump 5 and the measured The irregular sealed cavities 4 are connected to form a closed pipeline as a whole. On the first pipeline, there is a valve for controlling the liquid working medium 15 in the liquid storage tank 1 to flow into the booster device. On the second pipeline, there is a valve for A valve that controls the liquid working medium 15 serving as the calibration liquid in the temporary storage liquid container 2 to flow into the irregular sealed cavity 4 to be measured.

In this embodiment, the liquid working fluid 15 adopts a low-temperature working fluid, specifically R134a, which is low in cost, and the adhesion between the low-temperature working fluid and the inner wall of the irregular sealed cavity is extremely small, and will not remain in the sealed cavity on the wall so as to affect the next operation.

In this embodiment, it also includes a first recovery pipeline 8, the first pipeline is mainly composed of a vertical main road and two lateral branches, the valve on the first pipeline is the first electric three-way valve 7, the vertical The main road is connected to the two horizontal branches through the first electric three-way valve 7, and the vertical main road is also connected to the bottom surface of the liquid storage tank 1, and one of the horizontal branches is also connected to the outside of the housing 3 as the first recovery pipeline 8 The recovery container is connected, and the other lateral branch is also connected with the pressurization device.

In this embodiment, it also includes a second recovery pipeline 16, the second pipeline is mainly composed of a vertical main road and two lateral branches, and the valves on the second pipeline include the second valve 9, the third valve 10 and the second valve. The second electric three-way valve 11, the second valve 9 is arranged on the vertical main road, the vertical main road is connected with the pipe body of one of the horizontal branches, and the horizontal branch is used as one end of the second recovery pipeline 16 and is in the The recovery container outside the shell is connected, and the other end is connected to the irregular sealed cavity 4 to be measured through the second electric three-way valve 11, and the third valve 10 is located on the pipe section after the second recovery pipeline 16 is connected to the main road. One end of the other transverse branch is connected to the vacuum pump 5 , and the other end is connected to the irregular sealed cavity 4 to be measured through the second electric three-way valve 11 .

In this embodiment, the pressurization device adopts a cylinder 12, and the upper and lower parts of the cylinder 12 have air inlets extending to the housing 3 respectively, which are respectively an upper air inlet 13 and a lower air inlet 14, and the cylinder 12 and the temporary The pipelines between the liquid storage containers 2 are respectively connected to the bottom of the cylinder 12 and the top surface of the temporary storage liquid container 2, and the piston is pushed to move upward by filling the gas from the lower air inlet 14 into the bottom of the cylinder 12, and then from The upper air inlet 13 fills the upper part of the cylinder 12 with gas, and the pressure of the gas charged from the upper air inlet 13 is greater than the pressure of the gas charged from the lower air inlet 14, thereby pushing the piston to move downward, so it will be in the cylinder. The gas in the lower part is pressed into the temporary storage liquid container 2, and then the calibration liquid flows into the irregular sealed cavity 4 to be measured.

An operation method of the above-mentioned device for measuring the volume of an irregular sealed cavity, specifically comprising the following steps:

(1) Install the irregular sealed cavity 4 to be measured on the interface f of the second electric three-way valve 11 for connecting the irregular sealed cavity 4 to be measured, estimate the volume of the irregular sealed cavity 4 to be measured, and prepare for low temperature Working medium R134a, and fill R134a in the liquid storage tank 1;

(2) Close the interface c of the first electric three-way valve 7 used to connect the first recovery pipeline 8, the interface a used to connect the vertical main road of the first pipeline, and the third valve 10, and the other valves are all open, that is, The first electric three-way valve 7 is used for the interface b connected with the cylinder 12, the second electric three-way valve 11 is used for connecting the interface f of the irregular sealed cavity 4 to be measured, for connecting the interface d of the vacuum pump 5 and for The interface e connected to the second recovery pipeline 16, the first valve 6 and the second valve 9 are all in an open state, and the lower air inlet 14 of the cylinder 12 is closed;

(3) Turn on the vacuum pump 5 to pump out the air in the entire closed pipeline to make the entire closed pipeline in a vacuum state. When the pressure value displayed on the vacuum gauge on the vacuum pump 5 reaches 2×10 ^-3 ~ 5×10 ^-3 Pa, continue pumping Vacuum for 5-10 minutes;

(4) Close the second electric three-way valve 11 for the interface d connected to the vacuum pump 5, and then close the vacuum pump 5;

(5) Close the interface f of the second electric three-way valve 11 used to connect with the irregular sealed cavity 4 to be measured, open the first electric three-way valve 7 to connect the interface a of the vertical main road of the first pipeline, store liquid The R134a in the tank 1 enters the temporary storage liquid container 2 as the calibration liquid. When the liquid level of the calibration liquid in the temporary storage liquid container 2 reaches the volume scale C1 of the temporary storage liquid container, close the first electric three-way valve 7 for The interface a connected to the vertical main path of the first pipeline records the volume scale C1 of the temporary storage liquid container;

(6) Start the cylinder 12, open the lower air inlet 14, fill the lower air inlet 14 of the cylinder 12 with gas, push the piston to move upward, and open the second electric three-way valve 11 to connect with the irregular sealed cavity 4 to be measured interface f, and then fill the upper air inlet 13 of the cylinder 12 with gas, the pressure of the gas charged from the upper air inlet 13 is greater than the pressure of the gas charged from the lower air inlet 14, and the sum of the two is greater than the low temperature used The saturation pressure of the working medium at the measurement temperature, that is, the saturation pressure of R134a at the measurement temperature of 22°C is 0.6051Mpa, pushes the piston to move down, pressurizes the calibration liquid in the temporary storage liquid container 2, and the calibration liquid flows into the irregular to be measured In the sealed cavity 4;

① When the calibration liquid remains in the temporary storage container 2, that is, the volume scale C1 of the temporary storage container 2 is greater than the volume V of the irregular sealed cavity 4 to be measured, at this time, close the second electric three-way valve 11 for use with The interface f connected to the irregular sealed cavity 4 is to be measured, and a liquid level meter or a precision flow meter is used to record the liquid level and volume scale C2 of the remaining calibration liquid in the temporary storage liquid container 2, 0<C2≤C1, pay attention to observe the temporary storage liquid When the solution volume of the calibration solution in the container 2 is nearly finished, the second valve 9 is closed, so that the resulting measurement error can be avoided. Complete the filling of the irregular sealed cavity 4 to be determined, and proceed to step ⑺;

② When the liquid level of the calibration liquid in the temporary storage container 2 is greater than the 0 scale and close to the 0 scale, turn down the valve opening of the second valve to make the liquid level of the calibration liquid drop slowly. When the liquid level of the calibration liquid drops to 0 When the scale is reached, close the second valve immediately. At this time, all the calibration liquid in the temporary storage container 2 enters the irregular sealed cavity 4 to be measured, that is, the full liquid volume scale C1 of the temporary storage container 2 is less than or equal to the scale C1 to be measured. Measure the volume V of the irregular sealed cavity 4, close the second electric three-way valve 11 for the interface f connected to the irregular sealed cavity 4 to be measured, open the second valve and the third valve, and calibrate the After the recovery is completed, close the third valve, open the second electric three-way valve 11 for the interface d connected with the vacuum pump 5, open the vacuum device, and extract the air in the entire closed pipeline to make the entire closed pipeline It is in a vacuum state; close the second electric three-way valve for the interface connected with the vacuum device, and then close the vacuum device; open the first electric three-way valve for the interface connected to the vertical main road of the first pipeline, and store liquid The liquid working medium in the tank enters the temporary storage liquid container as the calibration liquid. When the liquid level of the calibration liquid in the temporary storage liquid container reaches the volume scale C1 of the temporary storage liquid container, the first electric three-way valve is closed to communicate with the second The interface connected to the vertical main road of a pipeline, and record the volume scale C1 of the temporary storage liquid container; turn to step 6; repeat this step N times, N≥1, until the calibration liquid in the temporary storage liquid container 2 remains , record the liquid level volume scale C2 of the remaining calibration liquid in the temporary storage liquid container 2 and the volume scale C1 of each temporary storage liquid container, complete the filling of the irregular sealed cavity to be determined, and turn to step (8);

(7) Calculate the filling volume of the calibration solution, namely:

V＝C1-C2 Formula ①

Go to step ⑼;

⑻ Calculate the filling volume of the calibration solution, namely:

V＝C1×N+(C1-C2) formula②

Among them, if the units of C1 and C2 are milliliters or other volume units, the volume of the irregular sealed cavity can be directly obtained after calculation. If the units of C1 and C2 are not milliliters or other volume units, conversion is required, and then the volume value can be obtained ;

Go to step ⑼;

⑼Open the first electric three-way valve 7 to connect the interface c of the first recovery pipeline 8 and the third valve 10, and the residual R134a in the closed pipeline flows into the recovery container for recovery, wherein the first recovery pipeline 8 The R134a in the second recovery pipeline 16 flows in the direction A, and the R134a in the second recovery pipeline 16 flows in the direction B. The low-temperature working fluid remaining in the pipeline will be vaporized at normal temperature and pressure, so there is no need to clean it up, and the workload of finishing is small.

The embodiments of the present invention are not limited thereto. According to the above content of the present invention, according to the common technical knowledge and conventional means in this field, without departing from the above-mentioned basic technical idea of the present invention, the type of cryogenic working medium and the frame of the present invention There are other embodiments for the specific structure, the vacuum device, the pressurization device, the specific forms of the first pipeline and the second pipeline, etc. Therefore, the present invention can also be modified, replaced or altered in other forms, all of which fall within the protection scope of the present invention.

Claims (10)

1. a kind of device for determining irregular seal cavity volume, it is characterised in that：It includes frame, rack-mounted use In containing the fluid reservoir of liquid working substance, for receiving the temporary liquid container of liquid working substance in fluid reservoir, for temporary liquid container The supercharging device and vacuum extractor of interior pressure, the fluid reservoir and temporary liquid container are closed container, and the fluid reservoir Positioned at the top of temporary liquid container, the fluid reservoir is connected by the first pipeline with supercharging device, the supercharging device also with Temporary liquid container is connected and the first valve is provided with connecting line, and the temporary liquid container is by the second pipeline respectively with taking out true Empty device is connected to be monolithically fabricated a pipeline liquid injecting device, the irregular sealing to be determined with irregular seal cavity to be determined Cavity is located at the lower section of the temporary liquid container, and being provided with first pipeline is used to control the liquid working substance stream in fluid reservoir Enter the valve of supercharging device, being provided with second pipeline is used to control the liquid working substance in temporary liquid container as demarcation liquid Flow into the valve of irregular seal cavity to be determined.

2. the device according to claim 1 for determining irregular seal cavity volume, it is characterised in that：The frame is close Closed shell body, the fluid reservoir, temporary liquid container, supercharging device and vacuum extractor are respectively positioned in housing, wherein, the fluid reservoir Positioned at the top of housing, the temporary liquid container is located at the middle part of housing, and the supercharging device is in the fluid reservoir and temporary Between liquid container, the vacuum extractor and irregular seal cavity to be determined are respectively positioned on the bottom of housing.

3. the device according to claim 2 for determining irregular seal cavity volume, it is characterised in that：The measure is not advised Then the device of seal cavity volume also includes the first recovery pipe, and first pipeline is main laterally to be propped up by a vertical main road and two Road is constituted, and the valve on first pipeline is the first electric T-shaped valve, and the vertical main road and two transverse legs pass through first Electric T-shaped valve is connected, and the vertical main road is also connected with the bottom surface of fluid reservoir, wherein a transverse legs are used as the first recovery tube Road is connected with the returnable in hull outside, and another transverse legs are also connected with supercharging device.

4. the device according to claim 3 for determining irregular seal cavity volume, it is characterised in that：The measure is not advised Then the device of seal cavity volume also includes the second recovery pipe, and second pipeline is main laterally to be propped up by a vertical main road and two Road is constituted, and the valve on second pipeline includes the second valve, the 3rd valve and the second electric T-shaped valve, second valve It is arranged on the vertical main road, the vertical main road is connected with the pipe shaft of a wherein transverse legs, and the transverse legs conduct Second recovery pipe its one end is connected with the returnable of hull outside, the other end by the second electric T-shaped valve with it is to be measured Fixed irregular seal cavity is connected, and the 3rd valve is located at the second recovery pipe and is connected with main road on the pipeline section after position, One end of another transverse legs connects the vacuum extractor, its other end by the second electric T-shaped valve with it is to be determined irregular Seal cavity is connected.

5. the device according to claim 4 for determining irregular seal cavity volume, it is characterised in that：The supercharging device Using cylinder, the upper and lower part of the cylinder has the air inlet extended on housing respectively, and respectively enterprising gas port enters with Gas port, the pipeline between cylinder and temporary liquid container is connected on the top surface of the bottom of cylinder and temporary liquid container.

6. the device according to claim 5 for determining irregular seal cavity volume, it is characterised in that：The liquid working substance Using cryogenic fluid.

7. a kind of operating method of the device of the irregular seal cavity volume of measure described in claim 4, it is characterised in that bag Include following steps：

(1) irregular seal cavity to be determined is arranged on into the second electric T-shaped valve is used to connect irregular seal cavity to be determined Interface on, estimate the volume of irregular seal cavity to be determined, prepare liquid working substance, and liquid working substance is filled with fluid reservoir In；

(2) close the first electric T-shaped valve be used for connect the first recovery pipe interface and for connection the vertical main road of the first pipeline Interface and the 3rd valve, remaining valve is in opening；

(3) vacuum extractor is opened, the air in whole pipeline liquid injecting device is extracted out, it is vacuum state to make whole pipeline liquid injecting device；

(4) the interface that the second electric T-shaped valve is used to be connected with vacuum extractor is closed, vacuum extractor is then shut off；

(5) the interface that the second electric T-shaped valve is used to be connected with irregular seal cavity to be determined is closed, the first electric three passes are opened The liquid working substance that valve is used in the interface for connecting the vertical main road of the first pipeline, fluid reservoir is entered in temporary liquid container as demarcation Liquid, when the liquid level of demarcation liquid in temporary liquid container reaches the volume scale C1 of temporary liquid container, closes the first electric T-shaped valve The interface being connected for the vertical main road with the first pipeline, and record the volume scale C1 of temporary liquid container；

(6) opening the second electric T-shaped valve is used for the interface that is connected with irregular seal cavity to be determined, and opens supercharging device, To keeping in the demarcation liquid pressure in liquid container, demarcation liquid is flowed into irregular seal cavity to be determined；

1. when demarcation liquid residue in temporary liquid container, the volume scale C1 for being temporary liquid container is more than irregular sealing to be determined The volume V of cavity, now, closes the interface that the second electric T-shaped valve is used to be connected with irregular seal cavity to be determined, record Level and capacity scale C2, the 0 ＜ C2≤C1 of remaining demarcation liquid, complete irregular seal cavity to be determined and fill in temporary liquid container (7) dress, be transferred to step；

2. when the liquid level of demarcation liquid in temporary liquid container is more than 0 scale and close to 0 scale, the valve port of the second valve is turned down, The liquid level of demarcation liquid is slowly declined, when the liquid level for demarcating liquid drops to 0 scale, the second valve is closed immediately, now, is kept in The volume scale C1 of liquid container is less than or equal to the volume V of irregular seal cavity to be determined, closes the second electric T-shaped valve and uses In the interface being connected with irregular seal cavity to be determined, the second valve and the 3rd valve are opened, the demarcation liquid in pipeline is entered Row is reclaimed, and is completed after reclaiming, is closed the 3rd valve, opens the interface that the second electric T-shaped valve is used to be connected with vacuum extractor, Vacuum extractor is opened, the air in whole pipeline liquid injecting device is extracted out, it is vacuum state to make whole pipeline liquid injecting device；Close second electronic Triple valve is used for the interface being connected with vacuum extractor, is then shut off vacuum extractor；Opening the first electric T-shaped valve is used to connect The liquid working substance in the interface of the vertical main road of the first pipeline, fluid reservoir is connect to enter as demarcation liquid in temporary liquid container, when temporary When the liquid level of demarcation liquid reaches the volume scale C1 of temporary liquid container in liquid storage container, closing the first electric T-shaped valve is used for and the The connected interface of the vertical main road of one pipeline, and record the volume scale C1 of temporary liquid container；It is transferred to step (6)；Repeat this step N times, N >=1, until the level and capacity that demarcation liquid has remaining demarcation liquid in residue, the temporary liquid container of record in temporary liquid container is carved The volume scale C1 of C2 and each temporary liquid container is spent, irregular seal cavity to be determined is completed and fills, be transferred to step (8)；

(7) demarcation liquid filling weight is calculated, i.e.,：

V=C1-C2 formula are 1.

(8) demarcation liquid filling weight is calculated, i.e.,：

V=C1 × N+ (C1-C2) formula is 2..

8. operating method according to claim 7, it is characterised in that：The step (6) 1. in, the temporary liquid container of observation The amount of solution of interior demarcation liquid, when nearly having flowed, closes the second valve.

9. operating method according to claim 8, it is characterised in that：(7) or (8) after completing step, first electronic three is opened The liquid working substance that port valve is used to remain in the interface and the 3rd valve for connecting the first recovery pipe, pipeline liquid injecting device flow to returnable It is middle to be reclaimed.

10. operating method according to claim 9, it is characterised in that：The step (6) in, the supercharging device is used Cylinder, the upper and lower part of cylinder has the air inlet extended on housing, respectively enterprising gas port and lower air inlet respectively, first from Lower air inlet into cylinder bottom insufflation gas promote piston move up, be then turned on the second electric T-shaped valve be used for it is to be determined The connected interface of irregular seal cavity, then from enterprising gas port into cylinder top insufflation gas, and be filled with from enterprising gas port Gas pressure be more than the gas pressure that is filled with from lower air inlet, and sum of the two is more than liquid working substance used under measurement temperature Saturation pressure, promote piston to move down, so that the gas in cylinder bottom is pressed into temporary liquid container, and then make temporarily Liquid is demarcated in liquid storage container to flow into irregular seal cavity to be determined.