CN211650836U - Air conditioning system - Google Patents
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- CN211650836U CN211650836U CN202020023135.0U CN202020023135U CN211650836U CN 211650836 U CN211650836 U CN 211650836U CN 202020023135 U CN202020023135 U CN 202020023135U CN 211650836 U CN211650836 U CN 211650836U
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Abstract
The utility model relates to an air conditioning system, which comprises a compressor, a condenser, a first throttle valve and a flash evaporator which are sequentially communicated, wherein the compressor is provided with an enthalpy-increasing port, and the flash evaporator is provided with an exhaust port; the enthalpy increasing pipe is communicated between the exhaust port and the enthalpy increasing port, and the adjusting valve is assembled on the enthalpy increasing pipe; the communicating vessel is communicated with the flash evaporator in a fluid way and is isolated from the outside, and the liquid level detection mechanism is used for detecting the liquid level height in the communicating vessel so as to obtain the liquid level height in the flash evaporator; the opening degree of the first throttle valve and the regulating valve is adjustable according to the liquid level height in the flash evaporator. Because the communicating vessel is communicated with the fluid of the flash evaporator, the liquid level detection mechanism can acquire the liquid level height in the flash evaporator in real time by detecting the liquid level height in the communicating vessel, thereby timely controlling the opening degree of the first throttle valve and the regulating valve and ensuring the accuracy of the liquid level control of the flash evaporator.
Description
Technical Field
The utility model relates to an air conditioning technology field especially relates to an air conditioning system.
Background
In a double-stage compression system, the enthalpy injection is generally performed in a flash evaporator mode, liquid refrigerant flows out of a condenser, is throttled by an electronic expansion valve to generate a part of gas, and is injected into a compressor from an enthalpy increasing pipe by means of the flash evaporator to supplement air and increase the enthalpy of the compressor. If the liquid level in the flash evaporator is too high, the enthalpy-increasing port of the compressor is easy to absorb air and carry liquid, so that the compressor and the whole air conditioning system are affected.
In the traditional technology, a temperature sensing bag and a pressure sensor are additionally arranged on an enthalpy increasing pipe and are matched with each other to calculate the superheat degree of gas flowing through the enthalpy increasing pipe, so that an electronic expansion valve and a switch of an electromagnetic valve assembled on the enthalpy increasing pipe are adjusted to enable the liquid level in a flash evaporator to be in a proper position.
But the liquid level control of the flash evaporator is inaccurate due to the time delay of the superheat degree (liquid is already present in the enthalpy-increasing pipe when the change of the superheat degree is detected), and the liquid return risk still exists in the compressor.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide an air conditioning system capable of reducing the liquid return risk of the compressor, aiming at the problem that the liquid level control of the flash evaporator is not accurate in the conventional technology, so that the liquid return risk of the compressor exists.
An air conditioning system comprises a compressor, a condenser, a first throttling valve and a flash evaporator which are sequentially communicated, wherein the compressor is provided with an enthalpy increasing port, and the flash evaporator is provided with an exhaust port;
the enthalpy increasing pipe is communicated between the exhaust port and the enthalpy increasing port, and the adjusting valve is assembled on the enthalpy increasing pipe;
the communicating vessel is communicated with the flash evaporator in a fluid mode and is isolated from the outside, and the liquid level detection mechanism is used for detecting the liquid level height in the communicating vessel so as to obtain the liquid level height in the flash evaporator;
the opening degree of the first throttle valve and the opening degree of the regulating valve are adjustable according to the liquid level height in the flash evaporator.
In one embodiment, the liquid level detection mechanism comprises an assembling rod, a floating ball and a signal transmission piece, wherein the assembling rod is at least partially accommodated in the communicating vessel, and the floating ball is slidably assembled on the assembling rod;
the signal transmission piece is connected with the assembling rod and is used for transmitting an electric signal, and the electric signal changes along with the position change of the floating ball on the assembling rod.
In one embodiment, the float ball has a first magnetic force portion, the signal transmission member has a second magnetic force portion, and the electric signal varies with variation in magnetic force between the first magnetic force portion and the second magnetic force portion.
In one embodiment, the mounting rod includes a body, a first limiting portion and a second limiting portion, the signal transmission element is connected to the body, the first limiting portion and the second limiting portion are mounted on the body at intervals, and the floating ball is mounted on the body and slides relative to the body between the first limiting portion and the second limiting portion.
In one embodiment, the communication device includes a receiving portion, a first communication pipe and a second communication pipe, the first communication pipe and the second communication pipe are arranged at intervals along the height direction of the flash evaporator, and the first communication pipe and the second communication pipe are both communicated between the receiving portion and the flash evaporator;
wherein the liquid level detection mechanism is used for detecting the liquid level height in the accommodating part so as to obtain the liquid level height in the flash evaporator.
In one embodiment, the flash evaporator comprises a first section and a second section which are mutually connected along the height direction, the first section is positioned at the lower end of the second section, and the first section occupies 1/3 of the total height of the flash evaporator;
the first communicating pipe is horizontally communicated between the first section and the accommodating part, and the second communicating pipe is horizontally communicated between the second section and the accommodating part.
In one embodiment, the second section comprises a first subsection and a second subsection, the first subsection is connected between the first section and the second subsection, and the second subsection occupies 1/3 of the total height of the flash evaporator;
the second communicating pipe is communicated between the second subsection and the accommodating part.
In one embodiment, the liquid level detection mechanism comprises a mounting rod, a floating ball and a signal transmission piece, the mounting rod comprises a body, a first limit part and a second limit part, the first limit part and the second limit part are mounted on the body at intervals, the floating ball is mounted on the body and slides relative to the body between the first limit part and the second limit part, the signal transmission piece is connected with the body and is used for transmitting an electric signal, and the electric signal changes along with the position change of the floating ball on the mounting rod;
the first limiting part is flush with the first communication pipe in height, and the second limiting part is flush with the second communication pipe in height.
In one embodiment, the flash evaporator comprises a main body, a liquid inlet pipe and an exhaust pipe, wherein the liquid inlet pipe and the exhaust pipe are both assembled on the main body;
the air conditioning system further comprises a first pipeline, the liquid inlet pipe is communicated with the condenser through the first pipeline, the first throttling valve is assembled on the first pipeline, and the exhaust port is formed in the exhaust pipe.
In one embodiment, the flash evaporator comprises a main body and a liquid outlet pipe, wherein the liquid outlet pipe is assembled on the main body;
the air conditioning system further comprises a second pipeline, a second throttling valve and an evaporator, the second pipeline is communicated with the liquid outlet pipe and the evaporator, the second throttling valve is assembled on the second pipeline, and the evaporator is communicated with the air return port of the compressor.
In the air conditioning system, the communicating vessel is in fluid communication with the flash evaporator, so that the liquid level detection mechanism can acquire the liquid level height in the flash evaporator in real time by detecting the liquid level height in the communicating vessel, thereby controlling the opening of the first throttle valve and the regulating valve in time and ensuring the accuracy of liquid level control of the flash evaporator; and the liquid level detection mechanism acquires the liquid level height in the flash evaporator by detecting the liquid level height in the communicating vessel, but is not directly placed in the flash evaporator to acquire the liquid level height, so that the influence of the fluid in a boiling state in the flash evaporator on the liquid level detection mechanism is avoided, and the accuracy of the liquid level detection mechanism in liquid level detection is further ensured.
Drawings
Fig. 1 is a schematic diagram of an air conditioning system according to an embodiment of the present invention;
FIG. 2 is a partial block diagram of the air conditioning system shown in FIG. 1;
fig. 3 is a flowchart of a control method of an air conditioning system according to an embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, an embodiment of the present invention provides an air conditioning system 100, which includes a compressor 10, a condenser 20, a first throttle valve 30, a flash evaporator 40 and an enthalpy increasing pipe 50, which are sequentially connected. The compressor 10 has an enthalpy increasing port 11, the flash evaporator 40 has an exhaust port 441, and the enthalpy increasing pipe 50 is connected between the exhaust port 441 of the flash evaporator 40 and the enthalpy increasing port 11 of the compressor 10.
When the compressor works, low-temperature and low-pressure gaseous refrigerant is compressed by the compressor 10 to form high-temperature and high-pressure gaseous refrigerant, the high-temperature and high-pressure gaseous refrigerant is condensed into high-pressure liquid by the condenser 20, the high-pressure liquid enters the flash evaporator 40 after being throttled by the first throttle valve 30, and gas formed in the flash evaporator 40 flows to the enthalpy-increasing port 11 of the compressor 10 from the exhaust port 441 of the flash evaporator through the enthalpy-increasing pipe 50 and enters the compressor 10 from the enthalpy-increasing port 11 for enthalpy increase.
Specifically, the air conditioning system 100 further includes a regulating valve 120, and the regulating valve 120 is mounted on the enthalpy increasing pipe 50 for controlling the flow rate of gas between the exhaust port 441 and the enthalpy increasing port 11.
Further, the air conditioning system 100 further includes a communication device 60 and a liquid level detection mechanism 70, wherein the communication device 60 is in fluid communication with the flash evaporator 40 and is isolated from the outside to prevent the gas in the flash evaporator 40 from overflowing from the communication device 60 to the outside. The liquid level detecting mechanism 70 is used for detecting the liquid level height in the communicating vessel 60 to know the liquid level height in the flash evaporator 40, wherein the opening degree of the first throttle valve 30 and the regulating valve 120 is adjustable according to the liquid level height in the flash evaporator 40.
Since the communicating vessel 60 is in fluid communication with the flash evaporator 40, the liquid level detection mechanism 70 can detect the liquid level height in the flash evaporator 40 in real time by detecting the liquid level height in the communicating vessel 60, so as to control the opening degrees of the first throttle valve 30 and the regulating valve 120 in time, thereby ensuring the accuracy of liquid level control of the flash evaporator 40; and the liquid level detection mechanism 70 acquires the liquid level height in the flash evaporator 40 by detecting the liquid level height in the communicating vessel 60, but is not directly placed in the flash evaporator 40 to acquire the liquid level height, so that the influence of the fluid in a boiling state in the flash evaporator 40 on the liquid level detection mechanism 70 is avoided, and the accuracy of the liquid level detection mechanism 70 in liquid level detection is further ensured.
Referring to fig. 2, in one embodiment, the flash evaporator 40 includes a main body 41, a liquid inlet pipe 42 and an exhaust pipe 44, the liquid inlet pipe 42 and the exhaust pipe 44 are mounted on the main body 41, the liquid inlet pipe 42 is communicated with the condenser 20 through a first pipe 80 (see fig. 1), the first throttle valve 30 is mounted on the first pipe 80, and the exhaust port 441 is disposed on the exhaust pipe 44.
Further, the flash evaporator 40 further includes a liquid outlet pipe 43, the liquid outlet pipe 43 is mounted on the main body 41, the air conditioning system 100 further includes a second pipe 90, a second throttle valve 110 and an evaporator (not shown in the figure), the second pipe 90 is communicated between the liquid outlet pipe 43 and the evaporator, the second throttle valve 110 is mounted on the second pipe 90, and the evaporator is communicated with the air return port of the compressor 10.
When the compressor works, low-temperature and low-pressure gaseous refrigerant is compressed by the compressor 10 to form high-temperature and high-pressure gaseous refrigerant, the high-temperature and high-pressure gaseous refrigerant is condensed into high-pressure liquid by the condenser 20, the high-pressure liquid enters the flash evaporator 40 from the liquid inlet pipe 42 after being throttled by the first throttle valve 30, and gas formed in the flash evaporator 40 flows to the enthalpy-increasing port 11 of the compressor 10 from the gas outlet 441 of the flash evaporator through the enthalpy-increasing pipe 50 and enters the compressor 10 from the enthalpy-increasing port 11 to increase enthalpy. The liquid formed in the flash evaporator 40 is throttled twice by the second throttle valve 110 and flows to the evaporator to be evaporated, and the evaporated refrigerant flows to the compressor 10 to be compressed again and circulates sequentially.
Specifically, the body 41 includes a first section and a second section connected to each other in the height direction, the first section being located below the second section, and the first section occupying 1/3 of the total height of the body 41. The liquid inlet pipe 42 and the liquid outlet pipe 43 are both disposed through the main body 41 from the top surface of the main body 41, and both extend into the first section of the main body 41.
The second section comprises a first subsection and a second subsection, the first subsection being connected between the first and second subsections, the second subsection occupying 1/3 of the total height of the body 41. An exhaust pipe 44 is inserted into the main body 41 from the top surface of the main body 41 and extends into the second subsection.
With reference to fig. 2, in an embodiment, the communicating device 60 includes a receiving portion 61, a first communicating pipe 62 and a second communicating pipe 63, the first communicating pipe 62 and the second communicating pipe 63 are disposed at intervals along a height direction of the flash evaporator 40, the first communicating pipe 62 and the second communicating pipe 63 are both communicated between the receiving portion 61 and the main body 41, and the liquid level detecting mechanism 70 is configured to detect a liquid level in the receiving portion 61 to obtain a liquid level in the main body 41.
Specifically, the first communication pipe 62 is located below the second communication pipe 63 in the height direction of the main body 41, the liquid in the main body 41 enters the accommodating part 61 from the first communication pipe 62, and the gas in the accommodating part 61 is discharged into the main body 41 from the second communication pipe 63 to be discharged from the main body 41 to the compressor 10.
Further, the first communication pipe 62 is horizontally communicated between the first section and the accommodating portion 61, so that the liquid level in the main body 41 does not flow into the accommodating portion 61 when the liquid level is not too high, and the liquid level detection mechanism 70 is convenient to detect the liquid level in the main body 41; the second communication pipe 63 is horizontally communicated between the second section and the accommodating portion 61, so as to facilitate the discharge of the gas in the accommodating portion 61. Specifically, the second communicating pipe 63 is communicated between the second subsection and the accommodating portion 61, so as to further facilitate the discharge of the gas in the accommodating portion 61, and ensure the accuracy of the liquid level detection.
In one embodiment, the liquid level detection mechanism 70 includes a mounting rod 71, a floating ball 72 and a signal transmission member 73, the mounting rod 71 is at least partially received in the accommodating portion 61, and the floating ball 72 is slidably mounted on the mounting rod 71. The signal transmission member 73 is connected to the mounting rod 71 and transmits an electrical signal, and the electrical signal transmitted by the signal transmission member 73 varies according to the position of the float ball 72 on the mounting rod 71.
That is, when the floating ball 72 receives buoyancy greater than its gravity, the floating ball 72 moves upward on the fitting rod 71, and when the floating ball 72 receives buoyancy less than its gravity, the floating ball 72 moves downward on the fitting rod 71. When the position of the floating ball 72 on the assembling rod 71 changes, the signal transmission piece 73 transmits different electric signals, different electric signals correspond to different liquid level heights, and the corresponding liquid level heights can be obtained by detecting the electric signals.
Specifically, the mounting rod 71 includes a body 711, a first stopper 712 and a second stopper 713, the first stopper 712 and the second stopper 713 are mounted on the body 711 at an interval, and the float ball 72 is mounted on the body 711 and slides relative to the body 711 between the first stopper 712 and the second stopper 713. More specifically, the first limiting portion 712 is level with the height of the first communicating pipe 62, and when the liquid level in the main body 41 reaches the height of the first communicating pipe 62, the liquid level detecting mechanism 70 can detect the liquid level in the main body 41; the height of the second limiting part 713 is equal to that of the second communicating pipe 63, so that the interference of gas accumulated at the top of the accommodating cavity is avoided, and the accuracy of liquid level detection is ensured.
Referring to fig. 3, another embodiment of the present invention further provides a control method of an air conditioning system 100, including the steps of:
s110: detecting a liquid level height within a communicator 60 in fluid communication with flash vessel 40 to learn the liquid level height within flash vessel 40;
s120: the opening degree of the first throttle valve 30 and the regulating valve 120 is controlled according to the liquid level height in the flash evaporator 40.
Since the communicating vessel 60 is in fluid communication with the flash evaporator 40, the liquid level detection mechanism 70 can detect the liquid level height in the flash evaporator 40 in real time by detecting the liquid level height in the communicating vessel 60, so as to control the opening degrees of the first throttle valve 30 and the regulating valve 120 in time, thereby ensuring the accuracy of liquid level control of the flash evaporator 40; and the liquid level detection mechanism 70 acquires the liquid level height in the flash evaporator 40 by detecting the liquid level height in the communicating vessel 60, but is not directly placed in the flash evaporator 40 to acquire the liquid level height, so that the influence of the fluid in a boiling state in the flash evaporator 40 on the liquid level detection mechanism 70 is avoided, and the accuracy of the liquid level detection mechanism 70 in liquid level detection is further ensured.
Specifically, step S110 includes:
detecting the actual position of the float ball 72 on the body 711;
step S120 includes:
the opening degrees of the first throttle valve 30 and the regulating valve 120 are controlled according to the relationship between the actual position and the preset position of the floating ball 72 on the body 711.
Specifically, the communicating vessel 60 includes a receiving portion 61, a first communicating pipe 62 and a second communicating pipe 63, the first communicating pipe 62 is horizontally communicated between the first section of the main body 41 and the receiving portion 61, and the second communicating pipe 63 is communicated between the second section and the receiving portion 61. The mounting rod 71 includes a body 711, a first stopper 712 and a second stopper 713, the first stopper 712 and the second stopper 713 are mounted on the body 711 at an interval, and the float ball 72 is mounted on the body 711 and slides between the first stopper 712 and the second stopper 713 with respect to the body 711. The first stopper 712 is flush with the first communication pipe 62, and the second stopper 713 is flush with the second communication pipe 63.
The step of controlling the opening degrees of the first throttle valve 30 and the regulating valve 120 according to the relationship between the actual position and the preset position of the floating ball 72 on the body 711 includes:
when the actual position is lower than the first preset position, the opening degree of the control regulator valve 120 is unchanged, and the opening degree of the first throttle valve 30 is increased at a first rate. Specifically, the first preset position is located at 1/3 of the total height from the first position-limiting part 712 to the second position-limiting part 713, and the first rate is 10 steps/minute.
That is, when the actual position is lower than the first preset position, which indicates that the liquid level in the flash evaporator 40 is low and the air supplement effect is poor at this time, the opening degree of the first throttle valve 30 is controlled to increase at the first rate, so that the refrigerant flowing into the flash evaporator 40 increases, the liquid level in the flash evaporator 40 increases, the medium pressure increases, and the air supplement amount to the compressor 10 increases.
When the actual position is higher than or equal to the first preset position and lower than the second preset position, the opening degree of the control regulating valve 120 is unchanged, and the opening degree of the first throttle valve 30 is increased at the second rate. The height of the second preset position is higher than that of the first preset position, and the second speed is smaller than the first speed. Specifically, the second preset position is located at 1/2 of the total height from the first position-limiting part 712 to the second position-limiting part 713, and the first rate is 5 steps/minute.
That is, when the actual position is higher than or equal to the first preset position and lower than the second preset position, it is proved that the flash evaporator 40 has a certain liquid level height, and in order to prevent the liquid level in the flash evaporator 40 from rising too fast, the opening degree of the first throttle valve 30 is controlled to increase at the second rate, at this time, the amount of the refrigerant flowing into the flash evaporator 40 continues to increase, the liquid level continues to rise, the intermediate pressure continues to increase, and the air supplement amount further increases.
When the actual position is equal to the second preset position, the liquid level in the flash evaporator 40 is moderate, the opening degrees of the first throttle valve 30 and the regulating valve 120 are controlled to be unchanged, and the air conditioning system 100 is in a relatively stable and efficient operation state.
When the actual position is greater than the second preset position and equal to or less than the third preset position, the opening of the control regulating valve 120 is unchanged, and the opening of the first throttle valve 30 is decreased at a first rate. Wherein, the third predetermined position is located at 2/3 of the total height from the first position-limiting part 712 to the second position-limiting part 713.
That is, when the actual position is greater than the second preset position and less than or equal to the third preset position, it is proved that the liquid level in the flash evaporator 40 is relatively high, and in order to avoid the risk of air supply and liquid entrainment caused by further increase of the liquid level, the opening degree of the first throttle valve 30 is controlled to be reduced at the first rate, at this time, the refrigerant in the flash evaporator 40 is reduced, and the liquid level is reduced.
And when the actual position is greater than the third preset position and less than or equal to the fourth preset position, controlling the regulating valve 120 to close. The fourth preset position is a position where the second limiting portion 713 is located.
That is, when the actual position is greater than the third preset position and less than or equal to the fourth preset position, it is proved that the liquid level in the flash evaporator 40 is ultrahigh, and the risk of air supply liquid entrainment exists, and at this time, the control regulating valve 120 is closed, the air supply loop is cut off, and air supply liquid entrainment is avoided. When the actual position is lowered to the third preset position, the risk of air entrainment is eliminated, the regulating valve 120 is re-opened, and the opening degree of the first throttle valve 30 is decreased at the first rate. When the actual position is lowered to the second preset position, it is proved that the liquid level in the flash evaporator 40 is moderate, and at this time, the control regulating valve 120 and the opening degree of the first throttle valve 30 are not changed, so that the air conditioning system 100 is in a relatively stable and efficient operation state.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An air conditioning system is characterized by comprising a compressor (10), a condenser (20), a first throttling valve (30) and a flash evaporator (40) which are communicated in sequence, wherein the compressor (10) is provided with an enthalpy increasing port (11), and the flash evaporator (40) is provided with an exhaust port (441);
an enthalpy-increasing pipe (50) and a regulating valve (120), wherein the enthalpy-increasing pipe (50) is communicated between the exhaust port (441) and the enthalpy-increasing port (11), and the regulating valve (120) is assembled on the enthalpy-increasing pipe (50);
the device comprises a communicating vessel (60) and a liquid level detection mechanism (70), wherein the communicating vessel (60) is communicated with the flash evaporator (40) in a fluid mode and is isolated from the outside, and the liquid level detection mechanism (70) is used for detecting the liquid level height in the communicating vessel (60) so as to know the liquid level height in the flash evaporator (40);
wherein the opening degree of the first throttle valve (30) and the regulating valve (120) is adjustable according to the liquid level height in the flash evaporator (40).
2. Air conditioning system according to claim 1, wherein said level detection means (70) comprise a fitting rod (71), a float ball (72) and a signal transmission member (73), said fitting rod (71) being at least partially housed inside said communicating vessel (60), said float ball (72) being slidingly fitted on said fitting rod (71);
wherein the signal transmission member (73) is connected with the mounting rod (71) and is used for transmitting an electric signal, and the electric signal is changed along with the position change of the floating ball (72) on the mounting rod (71).
3. Air conditioning system according to claim 2, characterized in that said float ball (72) has a first magnetic force portion and said signal transmission member (73) has a second magnetic force portion, said electric signal being variable as a function of the magnetic force between said first and second magnetic force portions.
4. The air conditioning system of claim 2, wherein the mounting rod (71) comprises a body (711), a first limiting portion (712) and a second limiting portion (713), the signal transmission member (73) is connected with the body (711), the first limiting portion (712) and the second limiting portion (713) are mounted on the body (711) at intervals, and the floating ball (72) is mounted on the body (711) and slides relative to the body (711) between the first limiting portion (712) and the second limiting portion (713).
5. The air conditioning system according to any one of claims 1 to 4, wherein the communicating vessel (60) comprises a containing part (61), a first communicating pipe (62) and a second communicating pipe (63), the first communicating pipe (62) and the second communicating pipe (63) are arranged at intervals along the height direction of the flash evaporator (40), and the first communicating pipe (62) and the second communicating pipe (63) are both communicated between the containing part (61) and the flash evaporator (40);
wherein the liquid level detection mechanism (70) is used for detecting the liquid level height in the accommodating part (61) to obtain the liquid level height in the flash evaporator (40).
6. Air conditioning system according to claim 5, characterized in that the flash evaporator (40) comprises a first section and a second section which are mutually connected in height direction, the first section being located at the lower end of the second section and occupying 1/3 of the total height of the flash evaporator (40);
the first communication pipe (62) is horizontally communicated between the first section and the accommodating part (61), and the second communication pipe (63) is horizontally communicated between the second section and the accommodating part (61).
7. The air conditioning system of claim 6, wherein the second section comprises a first subsection and a second subsection, the first subsection being connected between the first section and the second subsection, the second subsection occupying 1/3 of the total height of the flash evaporator (40);
wherein the second communicating pipe (63) is communicated between the second subsection and the accommodating part (61).
8. The air conditioning system of claim 6, wherein the liquid level detecting mechanism (70) comprises a mounting rod (71), a floating ball (72) and a signal transmission member (73), the mounting rod (71) comprises a body (711), a first limiting portion (712) and a second limiting portion (713), the first limiting portion (712) and the second limiting portion (713) are assembled on the body (711) at intervals, the floating ball (72) is assembled on the body (711) and slides between the first limiting portion (712) and the second limiting portion (713) relative to the body (711), the signal transmission member (73) is connected with the body (711) and is used for transmitting an electrical signal, and the electrical signal changes along with the position change of the floating ball (72) on the mounting rod (71);
wherein the first stopper 712 is flush with the first communication pipe 62, and the second stopper 713 is flush with the second communication pipe 63.
9. Air conditioning system according to claim 1, characterized in that said flash evaporator (40) comprises a main body (41), an inlet pipe (42) and an outlet pipe (44), said inlet pipe (42) and said outlet pipe (44) being mounted on said main body (41);
the air conditioning system further comprises a first pipeline (80), the liquid inlet pipe (42) is communicated with the condenser (20) through the first pipeline (80), the first throttling valve (30) is assembled on the first pipeline (80), and the exhaust port (441) is arranged on the exhaust pipe (44).
10. Air conditioning system according to claim 1, wherein said flash evaporator (40) comprises a main body (41) and a drain pipe (43), said drain pipe (43) being mounted on said main body (41);
air conditioning system still includes second pipeline (90), second choke valve (110) and evaporimeter, second pipeline (90) communicate in drain pipe (43) with between the evaporimeter, second choke valve (110) assemble in on second pipeline (90), the evaporimeter with the return-air mouth of compressor (10) intercommunication.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020023135.0U CN211650836U (en) | 2020-01-06 | 2020-01-06 | Air conditioning system |
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| CN202020023135.0U CN211650836U (en) | 2020-01-06 | 2020-01-06 | Air conditioning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174471A (en) * | 2020-01-06 | 2020-05-19 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN112611121A (en) * | 2020-12-23 | 2021-04-06 | 青岛海信日立空调系统有限公司 | Refrigerating system and control method of two-stage throttle valve |
-
2020
- 2020-01-06 CN CN202020023135.0U patent/CN211650836U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174471A (en) * | 2020-01-06 | 2020-05-19 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN112611121A (en) * | 2020-12-23 | 2021-04-06 | 青岛海信日立空调系统有限公司 | Refrigerating system and control method of two-stage throttle valve |
| CN112611121B (en) * | 2020-12-23 | 2023-09-05 | 青岛海信日立空调系统有限公司 | Refrigerating system and control method of two-stage throttle valve |
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