CN210242113U - Precise control refrigerant filling machine - Google Patents
Precise control refrigerant filling machine Download PDFInfo
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- CN210242113U CN210242113U CN201920885175.3U CN201920885175U CN210242113U CN 210242113 U CN210242113 U CN 210242113U CN 201920885175 U CN201920885175 U CN 201920885175U CN 210242113 U CN210242113 U CN 210242113U
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Abstract
The utility model provides a smart accuse refrigerant fills annotates machine, the purpose is solved current refrigerant and is filled the machine and adopt intermittent type mark and single measurement mode and the refrigerant that leads to fills the technical problem who fills the notes error. The precise control refrigerant filling machine comprises a constant volume tank which is arranged at the weighing platform and is monitored by a weighing sensor, and a filling valve which is communicated with the constant volume tank and is provided with a flow sensor. The utility model discloses a constant volume jar by weighing sensor monitoring is controlled the single refrigerant volume of filling, and rethread contrast weighing sensor and flow sensor's monitoring data confirms the refrigerant volume of filling once more, carries out online measurement by multiple metering device to confirm the measurement result through the multiple metering mode data of contrast, avoided because the refrigerant volume of filling that the metering device leads to measures the production accident that the volume deviation causes.
Description
Technical Field
The utility model belongs to the technical field of the refrigerant fills notes and specifically relates to a smart accuse refrigerant fills annotates machine.
Background
The refrigerant is a working medium of the refrigeration equipment cycle, and the charging quantity of the refrigerant affects the refrigeration effect of the equipment and the economic and safety performance of the operation. The existing refrigerant charging machines all comprise a refrigerant pressurizing part and a refrigerant charging part. The refrigerant under normal temperature and normal pressure is pressurized into high-pressure refrigerant by the refrigerant pressurizing part and then supplied to the refrigerant filling part, and is filled into the workpiece according to the set filling amount. Refrigerant charging machines can be divided into a metering cylinder type charging machine and a mass flow meter type charging machine according to the metering mode of the refrigerant charging machine. The metering cylinder type filling machine is characterized in that a booster pump sucks in a refrigerant and boosts the refrigerant, then the refrigerant is injected into a metering cylinder, and the volume of an inner cavity of the metering cylinder at the moment is determined by sensing the position of a piston rod of the metering cylinder, so that the filling amount is determined. The mass flow meter type charging machine is characterized in that after a refrigerant is pressurized by a pressurization system, the charging amount of the refrigerant is calculated by calculating pulses according to a certain corresponding relation between an electronic pulse signal and a liquid refrigerant flowing through a flow meter in the charging system.
In current actual production, in order to ensure the filling precision, the filling machine is generally calibrated before production line opening, after equipment fault is discharged, during machine transferring and during production. During the two times of calibration, the two refrigerant filling machines are metered by a single metering mode (the position of a piston rod of a metering cylinder or an electronic pulse signal). Thus, the accuracy of its metering is closely related to the reliability of the metering device. However, the metering error or metering error of the metering device is unavoidable (such as zero drift, metering deviation, etc.), and if the error or metering error cannot be fed back or identified in time, the error or metering error will cause the error accident of the refrigerant charging amount of the batch product.
Disclosure of Invention
To the above-mentioned condition, for overcoming prior art's defect, the utility model provides a smart accuse refrigerant fills annotates machine has solved current refrigerant and has filled the machine and adopt intermittent type to mark and single measurement mode and the refrigerant that leads to fills the technical problem who fills the notes error.
In order to achieve the above object, the utility model provides a following technical scheme:
a precision controlled refrigerant charger comprising:
the constant volume tank is internally provided with an accommodating space, the outer wall of the constant volume tank is provided with an edge platform, and the side wall and the bottom of the constant volume tank are respectively provided with a feeding hole and a discharging hole;
the electromagnetic valves are respectively arranged at the feed inlet and the discharge outlet;
the weighing sensor is arranged at the bottom of the constant volume tank edge platform;
the weighing platform consists of support legs and a top plate, the weighing sensor is fixed on the upper surface of the top plate, and the constant volume tank penetrates through the top plate and is suspended in the weighing platform;
the filling valve is communicated with the discharge hole;
the flow sensor is arranged at the outlet of the filling valve;
and the controller is in communication connection with the electromagnetic valve, the weighing sensor and the flow sensor respectively.
Furthermore, a material control piston which is attached to the inner wall of the constant volume tank and vertically reciprocates is arranged in the constant volume tank.
Further, the refrigerant charging machine further includes:
the bottom end of the plug rod is fixedly connected with the material control piston, and the top end of the plug rod penetrates through the top of the constant volume tank;
the hydraulic cylinder is arranged above the constant volume tank and is in communication connection with the controller, and the movable end of the hydraulic cylinder is fixedly connected with the top end of the plug rod.
Further, the refrigerant charging machine further includes:
and the displacement sensor is in communication connection with the controller, and the movable end of the displacement sensor is sleeved and fixed at the front end of the movable end of the hydraulic cylinder.
Further, the refrigerant charging machine further includes:
the positioning frame is composed of a plurality of support legs, an upper layer panel, a middle layer panel and a lower layer panel, a hydraulic cylinder main body is fixed at the upper layer panel, a movable end of the hydraulic cylinder main body penetrates through the upper layer panel, a displacement sensor is fixed between the upper layer panel and the middle layer panel, a weighing platform is fixed at the lower layer panel, and a stopper rod reciprocates in the area near the middle layer panel.
Further, the constant volume tank is made of low-temperature steel.
Further, the flow sensor employs a refrigerant flow meter.
Further, the displacement sensor adopts a linear displacement sensor.
The utility model discloses the application adopts the constant volume jar by weighing sensor monitoring to fill the liquid refrigerant volume of single and control, and rethread contrast weighing sensor and flow sensor's monitoring data confirms the refrigerant volume of filling once more, carries out online measurement by multiple metering device to confirm the measurement result through contrasting multiple metering mode data, avoided because the refrigerant volume of filling that the metering device leads to measures the production accident that the volume deviation causes.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 3 is the utility model discloses application embodiment 2 in the perspective structure schematic diagram of constant volume jar.
Fig. 4 is the utility model discloses application embodiment 2 in weighing platform's schematic structure view.
Reference numerals: 1. the device comprises a constant volume tank, 11 parts of a feeding hole, 12 parts of a discharging hole, 13 parts of a following platform, 14 parts of an electromagnetic valve, 2 parts of a weighing sensor, 3 parts of a weighing platform, 31 parts of a height limiting structure, 4 parts of a filling valve, 5 parts of a flow sensor, 6 parts of a controller, 71 parts of a material control piston, 72 parts of a plug rod, 8 parts of a hydraulic cylinder, 9 parts of a displacement sensor, 10 parts of a positioning frame, 101 parts of an upper panel, 102 parts of a middle panel and 103 parts of a lower panel.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the claimed embodiments. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the embodiments of the present application, it is to be understood that the terms "upper", "lower", "vertical", "top", "bottom", "inner", "outer", and the like refer to orientations and positional relationships based on the drawings, and are used merely for convenience in describing the embodiments of the present application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present application.
In the embodiments of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
In the embodiments of the present application, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. In order to simplify the disclosure of the embodiments of the present application, the components and arrangements of the specific examples are described below. Of course, they are merely examples and are not intended to limit embodiments of the present application. Moreover, the claimed embodiments may repeat reference numerals and/or letters in the various examples, which have been repeated for purposes of brevity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the examples provided in the application examples are examples of various specific materials, but one of ordinary skill in the art would recognize the use of other materials.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, the utility model discloses application embodiment provides a smart accuse refrigerant fills annotates machine, include:
the constant volume jar 1, inside has the accommodation space, and outer wall department is equipped with along platform 13, is equipped with feed inlet 11 and discharge gate 12 respectively in lateral wall and bottom department. The refrigerant is quantified by adopting a constant volume tank 1, is introduced into the tank through a feed inlet 11 connected with a refrigerant storage tank conveying pipeline, and is discharged from a discharge outlet 12 after being quantified.
And the electromagnetic valves 14 are respectively arranged at the feed inlet 11 and the discharge outlet 12. The material in the constant volume tank 1 is controlled to enter and exit through an electromagnetic valve.
And the weighing sensor 2 is arranged at the bottom of the edge table 13.
Weighing platform 3 comprises stabilizer blade and roof, and weighing sensor 2 is fixed in the roof upper surface, and constant volume jar 1 runs through the roof, hangs and locates in weighing platform 3. The weighing sensor 2 is arranged between the edge platform 13 and the weighing platform 3 in a clamping mode, and is used for measuring the weight change of the constant volume tank 1 so as to monitor the weight change of a cooling medium in the constant volume tank 1.
And the filling valve 4 is communicated with the discharge hole 12 and is used for filling the refrigerant into the container to be filled.
And the flow sensor 5 is arranged at the outlet of the charging valve 4 and used for monitoring the charging amount of the refrigerant.
And the controller 6 is respectively in communication connection with the electromagnetic valve 14, the weighing sensor 2 and the flow sensor 5. Weighing sensor 2 and flow sensor 5 are all independently monitored the refrigerant charge volume, and controller 6 receives weighing sensor 2 and flow sensor 5's data, if two sets of data all are located normal threshold value, then can judge that the charge volume is correct, if arbitrary group data send skew, then can judge the error that appears, overhauls filling device immediately to avoid sending batch nature accident.
The using method comprises the following steps:
and opening the electromagnetic valve at the feeding port through the controller, keeping the electromagnetic valve at the discharging port closed, and introducing the refrigerant in the refrigerant storage tank conveying pipeline into the constant volume tank. The weighing sensor monitors the weight change of the constant volume tank and transmits data to the controller. When the weight reaches a preset value, the controller regulates and controls to close the electromagnetic valve at the feeding hole and open the electromagnetic valve at the discharging hole, and the refrigerant is guided into the filling valve to be filled. In the charging process, the flow sensor monitors the flow of the refrigerant flowing out of the outlet of the charging valve, transmits data to the controller, processes the data to obtain the refrigerant charging amount monitored by the flow sensor, and compares the data with a preset value and the refrigerant charging amount data monitored by the weighing sensor. If the refrigerant charge quantity is within the preset threshold value, the refrigerant charge quantity can be judged to be accurate; if the data monitored by the weighing sensor or the flow sensor is not in accordance with the preset value, the deviation of the sensor is prompted, the sensor is corrected in time, and the filling amount is confirmed in an off-line mode.
Example 2
This example differs from example 1 in that:
as shown in fig. 2 and 3, a material control piston 71 which is attached to the inner wall of the constant volume tank 1 and vertically reciprocates is arranged in the constant volume tank 1.
And the bottom end of the plug rod 72 is fixedly connected with the material control piston 71, and the top end of the plug rod penetrates through the top of the constant volume tank 1 and is fixedly connected with the movable end of the hydraulic cylinder 8 arranged above the constant volume tank 1.
The piston 71 is driven to reciprocate in the constant volume tank 1 by the plug rod 72 driven by the hydraulic cylinder 8, so that the introduction and the discharge of the refrigerant are accelerated.
And a displacement sensor 9 having a movable end fixed to the front end of the movable end of the hydraulic cylinder 8. The device is used for monitoring the moving distance of the movable end of the hydraulic cylinder 8, so that the position of the material control piston 71 in the constant volume tank 1 is determined, and the quantity of the refrigerant in the constant volume tank 1 is controlled.
And the hydraulic cylinder 8 and the displacement sensor 9 are respectively in communication connection with the controller 6, so that automatic control is realized.
The positioning frame 10 is composed of a plurality of support legs, an upper layer panel, a middle layer panel and a lower layer panel. The main body of the hydraulic cylinder 8 is fixed at the upper panel 101, and the movable end of the hydraulic cylinder penetrates through the upper panel 101; the displacement sensor 9 is fixed between the upper deck 101 and the middle deck 102, the weighing station 3 is fixed at the lower deck 103, and the stem 72 reciprocates in the vicinity of the middle deck 102.
The constant volume tank 1 is made of low-temperature steel and has strong pressure resistance. To match the refrigerant charge operating conditions.
The flow sensor 5 is a refrigerant flow meter. Is matched with the refrigerant.
The displacement sensor 9 is a linear displacement sensor. Matching the vertical movement of the movable end of the hydraulic cylinder 8.
The using method comprises the following steps:
open the solenoid valve of feed inlet department through the controller, and keep discharge gate department solenoid valve to close, simultaneously, start its movable end of pneumatic cylinder shrink, it goes upward vertically in the constant volume jar to drive stopper rod transmission accuse material piston, introduce the refrigerant in the constant volume jar (as shown in figure 4, as the preferred scheme of this embodiment, the bench board department activity of weighing is fixed with limit for height structure 31, its top is close and hangs and locates along the bench side, in order to avoid the constant volume jar to shift up along with the piston and break away from weighing sensor, simultaneously, the feed inlet sets up in the lateral wall department that is close to constant volume tank bottom, in order to cooperate the accuse material piston to the absorption and the pressure of refrigerant to arrange). The displacement sensor transmits displacement data of the movable end of the hydraulic cylinder to the controller, when the displacement data reach a preset value, the controller regulates and controls the hydraulic cylinder to stop running, the received data of the weighing sensor are compared with the preset value, and if the data are within a threshold value, the quantity of the refrigerant introduced into the constant volume tank by the material control piston is judged to meet the requirement. Then, the controller regulates and controls to close the feed inlet solenoid valve and open discharge gate department solenoid valve to start hydraulic cylinder makes its movable end extend, drive the stopper rod transmission accuse material piston and go down in the vertical of constant volume jar, extrude the refrigerant from the constant volume jar in to filling valve department through the discharge gate. The subsequent filling and data analysis and regulation operations were the same as in example 1.
If the displacement sensor data does not match the load cell data, an error source can be determined from the flow sensor data.
Claims (8)
1. A kind of accurate control coolant fills the machine, characterized by comprising:
the constant volume tank is internally provided with an accommodating space, the outer wall of the constant volume tank is provided with an edge platform, and the side wall and the bottom of the constant volume tank are respectively provided with a feeding hole and a discharging hole;
the electromagnetic valves are respectively arranged at the feed inlet and the discharge outlet;
the weighing sensor is arranged at the bottom of the constant volume tank edge platform;
the weighing platform consists of support legs and a top plate, the weighing sensor is fixed on the upper surface of the top plate, and the constant volume tank penetrates through the top plate and is suspended in the weighing platform;
the filling valve is communicated with the discharge hole;
the flow sensor is arranged at the outlet of the filling valve;
and the controller is in communication connection with the electromagnetic valve, the weighing sensor and the flow sensor respectively.
2. The refrigerant charging machine according to claim 1, wherein a material control piston is disposed in the volumetric tank, and the material control piston is attached to an inner wall of the volumetric tank and vertically reciprocates.
3. The refrigerant charger according to claim 2, further comprising:
the bottom end of the plug rod is fixedly connected with the material control piston, and the top end of the plug rod penetrates through the top of the constant volume tank;
the hydraulic cylinder is arranged above the constant volume tank and is in communication connection with the controller, and the movable end of the hydraulic cylinder is fixedly connected with the top end of the plug rod.
4. The refrigerant charger according to claim 3, further comprising:
and the displacement sensor is in communication connection with the controller, and the movable end of the displacement sensor is sleeved and fixed at the front end of the movable end of the hydraulic cylinder.
5. The refrigerant charger according to claim 4, further comprising:
the positioning frame is composed of a plurality of support legs, an upper layer panel, a middle layer panel and a lower layer panel, a hydraulic cylinder main body is fixed at the upper layer panel, a movable end of the hydraulic cylinder main body penetrates through the upper layer panel, a displacement sensor is fixed between the upper layer panel and the middle layer panel, a weighing platform is fixed at the lower layer panel, and a stopper rod reciprocates in the area near the middle layer panel.
6. The refrigerant charger according to claim 1, wherein the volumetric tank is made of low temperature steel.
7. The refrigerant charger of claim 1, wherein the flow sensor is a refrigerant flow meter.
8. The refrigerant charger according to claim 4, wherein the displacement sensor is a linear displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920885175.3U CN210242113U (en) | 2019-06-12 | 2019-06-12 | Precise control refrigerant filling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920885175.3U CN210242113U (en) | 2019-06-12 | 2019-06-12 | Precise control refrigerant filling machine |
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| Publication Number | Publication Date |
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| CN210242113U true CN210242113U (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920885175.3U Active CN210242113U (en) | 2019-06-12 | 2019-06-12 | Precise control refrigerant filling machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459164A (en) * | 2022-01-26 | 2022-05-10 | 上海哲雪冷链设备有限公司 | Electric compression condensing unit for freezing and refrigerating |
| CN115200272A (en) * | 2022-06-23 | 2022-10-18 | 江西理文化工有限公司 | Movable refrigerant recovery and filling device |
-
2019
- 2019-06-12 CN CN201920885175.3U patent/CN210242113U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459164A (en) * | 2022-01-26 | 2022-05-10 | 上海哲雪冷链设备有限公司 | Electric compression condensing unit for freezing and refrigerating |
| CN114459164B (en) * | 2022-01-26 | 2024-02-09 | 上海哲雪冷链设备有限公司 | Voltage condensation unit for freezing and refrigerating |
| CN115200272A (en) * | 2022-06-23 | 2022-10-18 | 江西理文化工有限公司 | Movable refrigerant recovery and filling device |
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