CN217715548U - Pressurized refrigerant oil filling device of air-conditioning refrigeration system - Google Patents
Pressurized refrigerant oil filling device of air-conditioning refrigeration system Download PDFInfo
- Publication number
- CN217715548U CN217715548U CN202221585188.7U CN202221585188U CN217715548U CN 217715548 U CN217715548 U CN 217715548U CN 202221585188 U CN202221585188 U CN 202221585188U CN 217715548 U CN217715548 U CN 217715548U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- oiler
- hydro
- pressure side
- connecting pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Compressor (AREA)
Abstract
The utility model discloses an air conditioner refrigerating system takes pressure filling refrigeration oil device, including oiler cylinder body (11), the axial both ends of oiler cylinder body are connected with hydro-cylinder low pressure side respectively and link pipe (14), hydro-cylinder high pressure side links pipe (20), hydro-cylinder low pressure side links pipe (14), it has the stop valve to communicate separately in hydro-cylinder high pressure side links pipe (20), coaxial slidable mounting has hydro-cylinder slider (16) in oiler cylinder body (11), be two parts space by separating in hydro-cylinder slider (16) oiler cylinder body (11), thimble discharge valve (18) are installed to oiler cylinder body (11) lateral part. The utility model discloses can solve the problem that just can add the oil after the inside freon of evacuation refrigerating system pipeline when current air conditioning equipment refrigerating system adds the refrigeration oil.
Description
Technical Field
The utility model relates to an air conditioner refrigeration oil filling device field specifically is an air conditioner refrigerating system presses filling refrigeration oil device in area.
Background
As shown in fig. 1, the air conditioning and refrigeration system generally mainly comprises a compressor 1, a condenser 4, an expansion valve 6, an evaporator 8, a condensing fan 5 and an evaporating fan 7, when the air conditioning and refrigeration system is operated, the compressor 1 compresses low-temperature and low-pressure freon gas into high-temperature and high-pressure gas, the gas is sent into the condenser 4 through a high-pressure connecting pipe 3 and emits heat in the condenser 4, the gas is condensed into high-pressure freon liquid, the high-pressure freon liquid is throttled and reduced in pressure by the expansion valve 6 and enters the evaporator 8 to be evaporated and absorbed to cool indoor air passing through the evaporator 8 under the action of the evaporating fan 7, and the freon liquid is evaporated and absorbed to become low-pressure gas and is sucked by the compressor through a low-pressure connecting pipe 9 again. The above steps are repeated in a circulating way to achieve the purpose of reducing the indoor temperature. A low-pressure needle valve 9 is arranged on a low-pressure connecting pipe 10 in a bypass communication mode, a high-pressure needle valve 2 is arranged on a high-pressure connecting pipe 3 in a bypass communication mode, and medium in a pipeline can be discharged through the low-pressure needle valve 9 and the high-pressure needle valve 2.
When the air-conditioning compressor works, the Freon gas is compressed mainly by an internal rotating component, and in order to ensure the reliable work of the internal rotating component of the compressor 1, a certain amount of refrigeration oil must be added in the compressor 1 and an air-conditioning refrigeration system pipeline for lubrication, so as to ensure the reliable work of the air-conditioning compressor. When the air conditioner works, one part of the refrigeration oil in the air conditioner refrigeration system is in the compressor 1 and starts a lubricating effect on moving parts in the compressor 1, the other part of the refrigeration oil is dissolved in Freon and circularly flows in a refrigeration system pipeline along with the Freon, when the refrigeration system pipeline of the air conditioner refrigeration system is reduced due to certain reasons, the total quantity of the refrigeration oil in the air conditioner refrigeration system is reduced, when the quantity of the refrigeration oil is reduced to a certain extent, the refrigeration oil which is stored in the compressor 1 and starts the lubricating effect on the moving parts can be correspondingly reduced, and the compressor 1 can be burnt and stuck due to the fact that the internal parts lack of oil cannot be reliably lubricated.
In order to avoid the occurrence of the fault of the compressor, when the amount of the refrigerant oil of the compressor in the air-conditioning refrigeration system is monitored to be small, the current common practice is to completely remove the refrigerant (freon) in the pipeline of the air-conditioning refrigeration system, disconnect the pipeline joints of the inlet and the outlet of the compressor 1, supplement a certain amount of refrigerant oil from the oil supplement port (or the steam return port) of the compressor 1, reconnect the pipeline joints of the inlet and the outlet of the compressor 1, and perform vacuum pumping on the internal pipeline of the whole air-conditioning refrigeration system and fill the freon, so that the air-conditioning equipment can normally work again. The operation is time-consuming and labor-consuming, and a large amount of Freon needs to be discharged by an air-conditioning refrigeration system, so that the operation is not economical and causes pollution to the environment. How to supplement the refrigeration oil into the refrigeration system pipeline becomes a difficult problem to be solved urgently on the premise of not completely eliminating Freon in the air-conditioning refrigeration system.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an air conditioner refrigerating system presses filling refrigeration oil device to solve prior art air conditioner equipment refrigerating system and need get rid of the problem that just can add the oil behind the inside freon of system's pipeline when supplementing refrigeration oil.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a frozen oil device is annotated in air conditioner refrigerating system area pressure, is connected with hydro-cylinder low pressure side connecting pipe (14) including oiler cylinder body (11), the axial one end of oiler cylinder body, hydro-cylinder low pressure side connecting pipe (14) are connected to air conditioner refrigerating system compressor low pressure entrance point, and the axial other end of oiler cylinder body is connected with hydro-cylinder high pressure side connecting pipe (20), hydro-cylinder high pressure side connecting pipe (20) are connected to air conditioner refrigerating system compressor high pressure outlet end, communicate respectively in hydro-cylinder low pressure side connecting pipe (14), the hydro-cylinder high pressure side connecting pipe (20) and insert the stop valve, coaxial arrangement has hydro-cylinder slider (16) in oiler cylinder body (11), hydro-cylinder slider (16) can be followed oiler cylinder body (11) axial slip to separate into two part spaces in oiler cylinder body (11) by hydro-cylinder slider (16), ejector pin discharge valve (18) are installed to oiler cylinder body (11) lateral part, ejector pin discharge valve (18) communicate inside and outside oiler cylinder body (11) when being supported to press.
Further, the two axial ends of the oil feeder cylinder body are respectively provided with a cylinder opening, each cylinder opening is covered with a cylinder cover, and the oil cylinder low-pressure side connecting pipe (14) and the oil cylinder high-pressure side connecting pipe (20) are respectively connected with the cylinder covers at corresponding positions.
Furthermore, a one-way valve (17) is arranged in the oil cylinder sliding block (16), and the inside of the oil feeder cylinder body (11) is communicated in one way through the one-way valve (17) to form a space divided into two parts.
Further, the tank filler cylinder (11) is made of a transparent material.
The utility model discloses can solve the problem that just can add oil after the inside freon of evacuation refrigerating system pipeline when current air conditioning equipment refrigerating system adds the refrigeration oil, and design simple structure, it is easy to implement, has following advantage:
1. when the air conditioner refrigeration system is refueled, a refrigerant (Freon) in a system pipeline does not need to be emptied in advance, and the environment cannot be polluted.
2. The refrigerant oil of the compressor can be supplemented and filled into the pipeline of the air-conditioning refrigeration system only by utilizing the difference between the high pressure in the high-pressure pipeline and the low pressure in the low-pressure pipeline of the air-conditioning refrigeration system without providing an additional power source.
Drawings
Fig. 1 is a schematic diagram of a refrigeration system of a conventional air conditioner.
Fig. 2 is a structural diagram of the present invention.
Fig. 3 is a working state diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 2, the utility model relates to a device of filling refrigeration oil is pressed in air conditioner refrigerating system area, including oiler cylinder body 11, oiler cylinder cap 12, hydro-cylinder slider 16, hydro-cylinder low pressure side connecting pipe 14 and hydro-cylinder high pressure side connecting pipe 20, hydro-cylinder low pressure side connecting pipe stop valve 13, hydro-cylinder high pressure side connecting pipe stop valve 21, check valve 17.
Two axial ends (namely the upper end and the lower end in the figure) of the oiler cylinder body 11 are respectively provided with a cylinder port, two oiler cylinder covers 12 are arranged, and the two oiler cylinder covers 12 are screwed and covered on the cylinder ports at the two ends of the oiler cylinder body 11 in a threaded sealing connection mode. The oil cylinder sliding block 16 is coaxially arranged inside the oiler cylinder body 11, the oil cylinder sliding block 16 can slide up and down along the axial direction of the oiler cylinder body 11, the outer diameter of the oil cylinder sliding block 16 is matched with the inner diameter of the oiler cylinder body 11, and the inside of the oiler cylinder body 11 is divided into an upper space A and a lower space B by the oil cylinder sliding block 16.
The tank body 11 is made of transparent material, and the movement of the oil cylinder slider 16 in the tank body and the flow of Freon and refrigerant oil in the tank body can be observed. The center of the cylinder cover of the oil feeder at the lower part of the oil feeding cylinder body 11 is provided with a high-pressure side connecting pipe nipple 19, and one end pipe orifice of the oil cylinder high-pressure side connecting pipe 20 is connected with the high-pressure side connecting pipe nipple 19. The center of a tank filler cylinder cover 12 at the upper part of the tank filler cylinder body 11 is provided with a low-pressure side connecting pipe nipple 15, and one end pipe orifice of a cylinder low-pressure side connecting pipe 14 is connected with a high-pressure side connecting pipe nipple 19.
An ejector pin exhaust valve 18 is installed on the side surface of the filler cylinder 11, the ejector pin exhaust valve 18 is positioned corresponding to the space B, a tool is used to abut against a valve needle at the center of the ejector pin exhaust valve 18, and the gas in the space B can be exhausted from the filler cylinder 11.
As shown in fig. 3, the other end of the oil cylinder low-pressure side connecting pipe 14 is communicated with a low-pressure needle valve 9 of the air-conditioning refrigeration system, and an oil cylinder low-pressure side connecting pipe stop valve 13 is communicated and connected into the oil cylinder low-pressure side connecting pipe 14, so that the pipeline can be switched on and off. The other end orifice of the oil cylinder high-pressure side connecting pipe 20 is communicated with a high-pressure needle valve 2 of the air-conditioning refrigeration system, and an oil cylinder high-pressure side connecting pipe stop valve 21 is communicated and connected into the oil cylinder high-pressure side connecting pipe 20, so that the pipeline can be switched on and off.
The center of the oil cylinder slide block 16 is provided with a one-way valve 17, and the one-way valve 17 is communicated with the space A and the space B in a one-way mode, and the communication direction is from the space B to the space A. When the pressure of the space B is higher than that of the space A, the gas in the space B flows towards the space A, and the gas cannot flow in the reverse direction.
When the refrigerating oil needs to be supplemented into the refrigerating system of the air conditioning equipment, the air conditioning equipment is firstly electrified and started to carry out refrigerating work, at the moment, the pressure of the Freon gas inside the pipeline at the position of a high-pressure needle valve 2 on a high-pressure connecting pipe 3 of the refrigerating system of the air conditioning equipment is about 1.5MPa, and the pressure of the Freon gas inside the pipeline at the position of a low-pressure needle valve 9 on a low-pressure connecting pipe 10 of the refrigerating system of the air conditioning equipment is about 0.2MPa. Unscrewing an oiler cylinder cover 12 from an oiler cylinder body 11, pouring refrigeration oil to be supplemented into an internal space A of the oiler cylinder cover, unscrewing the oiler cylinder cover 12 onto the oiler cylinder body 11 again (noting that the spaces A and B cannot be leaked), connecting one end of an oil cylinder low-pressure side connecting pipe 14 with a low-pressure side connecting pipe nozzle 15, and keeping a stop valve 13 of the oil cylinder low-pressure side connecting pipe open; one end of an oil cylinder high-pressure side connecting pipe 20 is connected with a high-pressure side connecting pipe nozzle 19, the oil cylinder high-pressure side connecting pipe stop valve 21 is kept closed, and the other end of the oil cylinder high-pressure side connecting pipe stop valve is well connected with a high-pressure needle valve 2 of an air-conditioning refrigeration system; a valve needle at the center of the thimble exhaust valve 18 is propped against by a tool, and the oil cylinder high-pressure side connecting pipe stop valve 2 is slowly opened, so that the Freon gas in the high-pressure pipeline 3 of the refrigeration system flows through the oil cylinder high-pressure side connecting pipe 20 to enter a space B of the oiler cylinder body 11, the air in the space B is expelled from the thimble exhaust valve 18, when the Freon gas is exhausted from the thimble exhaust valve 18, the space B is full of the Freon gas, the air in the space B is expelled, the tool which props against the thimble exhaust valve 18 is immediately loosened, and the oil cylinder high-pressure side connecting pipe stop valve 21 is quickly closed; the oil cylinder high-pressure side connecting pipe stop valve 21 is slowly opened again, the oil cylinder sliding block 16 is pushed to move upwards by using high-pressure Freon gas (1.5 MPa) in the space B, the space A and the oil cylinder low-pressure side connecting pipe 14 are gradually filled with the refrigerant oil in the space A, and when the refrigerant oil is found to be filled to one end, connected with the low-pressure needle valve 9, of the oil cylinder low-pressure side connecting pipe 14, the oil cylinder high-pressure side connecting pipe stop valve 21 is immediately closed; connecting the other end of the oil cylinder low-pressure side connecting pipe 14 with a bottom pressure needle valve 9 of the air-conditioning refrigeration system, opening the oil cylinder high-pressure side connecting pipe stop valve 21 again at the moment, and instantly pressing the refrigerant oil in the space A into a pipeline of the air-conditioning refrigeration system from the low-pressure needle valve 9; at this moment, the high-pressure side connecting pipe stop valve 14 of the oil cylinder is immediately closed, because the space B is internally provided with high-pressure Freon gas, the space A is internally provided with low-pressure Freon gas, the high-pressure Freon gas in the space B can slowly flow into the space A, and after about 5 minutes, the pressure between the two reaches the balance of about 0.2MPa.
Therefore, the oil cylinder slide block 16 slides to the topmost end of the oil feeder cylinder body 11, so the actual volume of the space A is zero, the volume of the space B reaches the maximum, the low-pressure side connecting pipe 14 of the oil cylinder and the space B of the oil feeder cylinder body contain low-pressure (0.2 MPa) Freon gas at the moment, the low-pressure side connecting pipe stop valve 13 of the oil cylinder is closed immediately, the low-pressure side connecting pipe 14 of the oil cylinder is separated from the low-pressure needle valve 9, after the air conditioning equipment is shut down, the air conditioning equipment waits for 5 minutes, the high-pressure side pressure of the air conditioning refrigeration system is reduced to about 0.5MPa at the moment, the high-pressure side connecting pipe 20 of the oil cylinder is separated from the high-pressure needle valve 2, and the supplementary oil filling work of the air conditioning refrigeration system is finished. The air-conditioning refrigeration system only loses low-pressure (0.2 MPa) Freon gas in the low-pressure side connecting pipe 14 of the oil cylinder and the space B of the tank body of the oil feeder, and the low-pressure (0.2 MPa) Freon gas is extremely small in amount, so that the refrigerating oil supplementing mode is economical and effective.
The embodiment of the utility model is only to the description that the preferred embodiment of the utility model goes on, it is not right the utility model discloses the design and scope are injectd, do not deviate from the utility model discloses under the prerequisite of design thought, the engineering technical staff in this field is right the various variants and the improvement that the technical scheme of the utility model made all should fall into the protection scope of the utility model, the technical content of the utility model application for protection has all been described in the claim.
Claims (4)
1. The utility model provides a frozen oil device of filling is pressed in air conditioner refrigerating system area, its characterized in that, including oiler cylinder body (11), the axial one end of oiler cylinder body is connected with hydro-cylinder low pressure side connecting pipe (14), hydro-cylinder low pressure side connecting pipe (14) are connected to air conditioner refrigerating system compressor low pressure entrance point, and the axial other end of oiler cylinder body is connected with hydro-cylinder high pressure side connecting pipe (20), hydro-cylinder high pressure side connecting pipe (20) are connected to air conditioner refrigerating system compressor high pressure outlet end, communicate respectively in hydro-cylinder low pressure side connecting pipe (14), the hydro-cylinder high pressure side connecting pipe (20) and have inserted the stop valve, coaxial arrangement has hydro-cylinder slider (16) in oiler cylinder body (11), hydro-cylinder slider (16) can be followed oiler cylinder body (11) axial slip to be two parts space by hydro-cylinder slider (16) with in oiler cylinder body (11), ejector pin discharge valve (18) are installed to oiler cylinder body (11) lateral part, ejector pin discharge valve (18) communicate inside and outside oiler cylinder body (11) when being supported to press.
2. The device for filling the refrigerant oil under pressure in the refrigeration system of the air conditioner according to claim 1, wherein two axial ends of the cylinder body of the oil filler are respectively provided with a cylinder opening, each cylinder opening is covered with a cylinder cover, and the connecting pipe (14) at the low pressure side of the oil cylinder and the connecting pipe (20) at the high pressure side of the oil cylinder are respectively connected to the cylinder covers at corresponding positions.
3. The device for filling the refrigerant oil under pressure in the air-conditioning refrigeration system according to claim 1, wherein a one-way valve (17) is installed in the cylinder slider (16), and the inside of the oiler cylinder body (11) is communicated in one way by the one-way valve (17) to form a space divided into two parts.
4. The pressurized refrigerant oil filling device of the air conditioning refrigeration system according to claim 1, wherein the oil filler cylinder (11) is made of transparent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221585188.7U CN217715548U (en) | 2022-06-23 | 2022-06-23 | Pressurized refrigerant oil filling device of air-conditioning refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221585188.7U CN217715548U (en) | 2022-06-23 | 2022-06-23 | Pressurized refrigerant oil filling device of air-conditioning refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217715548U true CN217715548U (en) | 2022-11-01 |
Family
ID=83775761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221585188.7U Active CN217715548U (en) | 2022-06-23 | 2022-06-23 | Pressurized refrigerant oil filling device of air-conditioning refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217715548U (en) |
-
2022
- 2022-06-23 CN CN202221585188.7U patent/CN217715548U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204806742U (en) | Jet -propelled enthalpy heat pump device that increases of two -stage throttle | |
| CN201628421U (en) | Intermediate oil return cooling device used for flooded screw stem water-ground source heat pump unit | |
| CN202928186U (en) | A double-oil level switch parallel-connection screw compressor condensing unit | |
| CN101403383A (en) | Screw compressor for refrigeration device | |
| CN217715548U (en) | Pressurized refrigerant oil filling device of air-conditioning refrigeration system | |
| CN208349661U (en) | A kind of accurate temperature controlling cold storage plant peculiar to vessel | |
| CN100575823C (en) | Multifunctional reclaiming machine | |
| CN217110102U (en) | Air-conditioning refrigeration system | |
| CN114941918A (en) | Device for filling refrigeration oil under pressure for air-conditioning refrigeration system | |
| CN201837155U (en) | Improved structure of refrigerant recycling filling machine | |
| CN114484945A (en) | Air conditioner refrigeration system and control method thereof | |
| CN212673541U (en) | Energy-saving modular refrigerating unit | |
| CN214665392U (en) | Flash type oil cooling system | |
| CN209027149U (en) | A kind of quick oiling gas engine heat pump system | |
| CN104696197B (en) | Compressor system with check valve | |
| CN208651153U (en) | A kind of multiple cylinder multiple level compressor and air-conditioning system | |
| CN203385240U (en) | Variable-frequency multi-connected machine with oil return structure | |
| CN112682986A (en) | Flash type oil cooling system and control method | |
| CN206073491U (en) | Freezer screw compressor unit | |
| JPS6032783B2 (en) | Refrigeration equipment oil return device | |
| CN218764108U (en) | Refrigerating system capable of recycling condensing agent | |
| CN210892228U (en) | High-efficient U-shaped gas separator and screw refrigerating unit of screw refrigerating unit | |
| CN214841175U (en) | Refrigerating system | |
| CN219243988U (en) | Injection oil return system | |
| CN210892231U (en) | Screw type high-efficiency refrigerating unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |