CN111425931A - Exhaust method and device of heat pump system and heat pump system - Google Patents
Exhaust method and device of heat pump system and heat pump system Download PDFInfo
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- CN111425931A CN111425931A CN202010301755.0A CN202010301755A CN111425931A CN 111425931 A CN111425931 A CN 111425931A CN 202010301755 A CN202010301755 A CN 202010301755A CN 111425931 A CN111425931 A CN 111425931A
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- floor heating
- exhaust
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- pump system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/08—Arrangements for drainage, venting or aerating
- F24D19/082—Arrangements for drainage, venting or aerating for water heating systems
- F24D19/083—Venting arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/12—Heat pump
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention relates to the technical field of heat pumps, in particular to an exhaust method and device of a heat pump system and the heat pump system. The exhaust method of the heat pump system comprises the following steps: opening a floor heating loop in a set exhaust area; acquiring inlet pressure and outlet pressure of a floor heating loop in a set exhaust area; determining a difference between the inlet pressure and the outlet pressure; and when the difference value meets a first preset condition, controlling and setting the floor heating loop in the exhaust area to be closed after meeting a second preset condition. Therefore, the pressure of the inlet and the outlet of the floor heating loop in the set exhaust area is monitored, so that whether gas is remained in the floor heating loop or not is reflected by the difference value of the inlet pressure and the outlet pressure, the floor heating loop is controlled to exhaust, the situation that the residual air in the floor heating loop influences the heating effect or generates abnormal sound is avoided, the user experience is improved, and the situation that the host cannot normally run due to excessive residual air in the floor heating loop can also be avoided.
Description
Technical Field
The invention relates to the technical field of heat pumps, in particular to an exhaust method and device of a heat pump system and the heat pump system.
Background
At present, floor heating is gradually favored by people as a higher air conditioner product of travelling comfort. Due to the structure and arrangement mode of the floor heating pipes, a floor heating loop often accumulates a large amount of gas before the unit is formally used. If the gas in the ground heating loop is not discharged, the heating effect can be influenced, abnormal sound can be generated, the user experience is poor, and even the host can not normally operate.
Disclosure of Invention
The invention aims to solve the problem of exhausting gas in a floor heating loop to a certain extent.
In order to solve the above problems, the present invention provides an exhaust method for a heat pump system, where the heat pump system includes a floor heating circuit with a set exhaust area, and the method includes:
opening the floor heating loop in the set exhaust area;
acquiring inlet pressure and outlet pressure of the floor heating loop in the set exhaust area;
determining a difference between the inlet pressure and the outlet pressure;
and when the difference value meets a first preset condition, controlling the floor heating loop in the set exhaust area to be closed after meeting a second preset condition so as to finish the exhaust of the floor heating loop in the set exhaust area.
Therefore, the pressure of the inlet and the outlet of the floor heating loop in the set exhaust area is monitored, whether gas is left in the floor heating loop or not is reflected by the difference value of the inlet pressure and the outlet pressure of the floor heating loop in the set exhaust area, whether gas is left in the floor heating loop or not is monitored, and the floor heating loop in the set exhaust area is controlled to exhaust, so that the influence of residual air in the floor heating loop on the heating effect or the generation of abnormal sound is avoided, the user experience is improved, and the situation that the host cannot normally operate due to the fact that the residual air in the floor heating loop is too much can be avoided.
Optionally, before the obtaining the inlet pressure and the outlet pressure of the floor heating circuit in the set exhaust area, the method further includes:
and controlling a water pump of the heat pump system to keep a preset rotating speed to operate for a first preset time.
Therefore, after a water pump of the heat pump system runs for a certain period of time, the pressure of the inlet and the pressure of the outlet of the floor heating loop in the set exhaust area are enabled to be close to stable, and therefore the accuracy of measurement is improved.
Optionally, the preset rotation speed is a maximum rotation speed of the water pump.
Therefore, the water pump of the heat pump system is controlled to run at the maximum rotating speed, so that on one hand, the pressure of fluid in the floor heating loop can be increased, and thus, greater thrust to gas is formed, and the gas is convenient to discharge; on the other hand, the time for the fluid in the floor heating loop to reach a stable state can be saved.
Optionally, the first preset condition includes: A-B > B1, where A is the inlet pressure, B is the outlet pressure, and B1 is a first preset value.
Therefore, through the setting of the first preset value, when whether the difference value between the inlet pressure and the outlet pressure of the floor heating loop in the set exhaust area is larger than the preset value or not, whether gas exists in the floor heating loop or not is directly reflected, and the floor heating loop in the set exhaust area is reminded of needing to be exhausted.
Optionally, the second preset condition includes: b2, where A is the inlet pressure, B is the outlet pressure, and B2 is a second predetermined value.
Therefore, when the difference value between the inlet pressure and the outlet pressure of the floor heating loop in the set exhaust area is not larger than the second preset value through the setting of the second preset value, the completion of the exhaust of the floor heating loop in the set exhaust area is prompted.
Optionally, the second preset condition further includes: the difference between the inlet pressure and the outlet pressure is continuously less than or equal to b2 and maintained for a second preset time period.
Therefore, the measuring error caused by unstable pressure is avoided being large, and the opening time of the floor heating loop is continuously prolonged to ensure that the gas in the floor heating loop is completely exhausted.
Optionally, there are a plurality of the set exhaust areas, and the opening the floor heating circuit in the set exhaust area includes: opening the floor heating loop in one of the set exhaust areas, and keeping the floor heating loops of all the other set exhaust areas closed.
Therefore, when one floor heating loop of the set exhaust area is exhausted, the floor heating loops of the other set exhaust areas are kept closed, so that the pressure value of the floor heating loop of the set exhaust area in the exhaust process can be increased, and larger thrust to gas is formed, and the gas is conveniently exhausted.
Optionally, the finishing of the exhaust of the floor heating circuit of the set exhaust area comprises: the exhaust of the floor heating loops of all the set exhaust areas is completed in sequence;
accomplish in proper order all set for the exhaust region after the exhaust of ground heating circuit, still include: and opening all the floor heating loops in the set exhaust area, and controlling all the floor heating loops in the set exhaust area to be closed after a third preset condition is met.
Therefore, after the exhaust of the floor heating loops of all the set exhaust areas is completed, all the floor heating loops of the set exhaust areas are opened, the exhaust of the common areas of the floor heating loops of different set exhaust areas can be realized, and the exhaust of the pipelines of the whole heat pump system is realized.
Optionally, the third preset condition includes: and the floor heating loops in all the set exhaust areas are kept in an open state for a third preset time.
Therefore, the gas at the common end of different set exhaust areas is exhausted through the control of the opening time.
Optionally, when the difference value meets a first preset condition, controlling a water pump of the heat pump system to operate at a variable speed.
Therefore, when the exhaust is detected to be needed, the rotating speed of the water pump is controlled to be changed constantly, the rotating speed of the water pump can be changed in a wave shape, so that fluctuation is generated, and the gas attached to the pipeline can be conveniently exhausted.
The present invention also provides an exhaust apparatus of a heat pump system, comprising:
the control unit is used for opening the floor heating loop in the set exhaust area;
the detection unit is used for acquiring the inlet pressure and the outlet pressure of the floor heating loop in the set exhaust area;
a determination unit for determining a difference between the inlet pressure and the outlet pressure;
the control unit is further used for controlling the floor heating loop in the set exhaust area to be closed after meeting a second preset condition when the difference value meets a first preset condition, so that exhaust of the floor heating loop in the set exhaust area is completed.
The exhaust device of the heat pump system and the exhaust method of the heat pump system have the same beneficial effects, and are not repeated herein.
The invention also provides a heat pump system comprising a computer readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor to implement the method of exhausting a heat pump system as defined in any one of the above.
The heat pump system and the exhaust method of the heat pump system have the same beneficial effects, and are not repeated herein.
Optionally, the detection unit includes a first pressure sensor and a second pressure sensor, the first pressure sensor is disposed at an inlet of the floor heating loop in the set exhaust area, and the second pressure sensor is disposed at an outlet of the floor heating loop in the set exhaust area.
Therefore, through the arrangement of the first pressure sensor and the second pressure sensor, the pressure of the inlet and the pressure of the outlet of the floor heating loop in the set exhaust area are detected respectively, and the exhaust condition of the floor heating loop is convenient to monitor.
Drawings
FIG. 1 is a flow chart of a method of venting a heat pump system in an embodiment of the present invention;
fig. 2 is a schematic configuration diagram of a heat pump system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an exhaust device of the heat pump system in the embodiment of the invention.
Description of reference numerals:
1-a control unit, 2-a detection unit, 3-a determination unit, 4-a water separator, 5-a water collector, 21-a first pressure sensor, 22-a second pressure sensor, 61-a first room, 62-a second room, 63-a third room, 64-a fourth room.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In addition, all directions or positional relationships mentioned in the embodiments of the present invention are positional relationships based on the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not imply or imply that the referred device or element must have a specific orientation, and are not to be construed as limiting the present invention.
An embodiment of the present invention provides an exhaust method of a heat pump system, where the heat pump system includes a floor heating circuit in which an exhaust area is set, as shown in fig. 1, the method includes:
step S1, opening the floor heating loop in the set exhaust area;
step S2, acquiring inlet pressure and outlet pressure of the floor heating loop in the set exhaust area;
step S3, determining the difference value of the inlet pressure and the outlet pressure of the floor heating loop in the set exhaust area;
and step S4, when the difference value between the inlet pressure and the outlet pressure meets a first preset condition, controlling the floor heating loop in the set exhaust area to be closed after meeting a second preset condition so as to finish the exhaust of the floor heating loop in the set exhaust area.
Generally, floor heating pipes are laid in a plurality of rooms, the floor heating pipe in each room forms a floor heating loop, the floor heating pipe in each room is respectively communicated with the water separator, and one or more rooms can be heated by controlling the actuator of the water separator 4. The set exhaust area may be any one or a plurality of rooms among all the rooms. Preferably, the set exhaust area may be any one of all the rooms. In step S1, as shown in fig. 2, the actuator of the water separator 4 is opened, the water pump of the heat pump system delivers water to the floor heating circuit in the set exhaust area, and the water collector 5 collects water in all the floor heating circuits. For example, when the floor heating circuit of the first room 61 is exhausted, the actuator of the water separator 4 is controlled to open the floor heating circuit of the first room 61, so that the water pump of the heat pump system delivers water to the first room 61. For example: when the set exhaust area comprises a plurality of rooms, all the rooms of the set exhaust area share one floor heating circuit.
Here, as shown in fig. 2, a first pressure sensor 21 is arranged at an inlet of each floor heating circuit, and the first pressure sensor 21 is used for measuring the pressure of the inlet of the floor heating circuit, namely the inlet pressure; a second pressure sensor 22 is arranged at an outlet of each floor heating loop, and the second pressure sensors 22 are used for measuring the pressure at the outlet of the floor heating loop, namely the outlet pressure. That is, there may be a plurality of the first pressure sensors 21 and the second pressure sensors 22. For example, the first pressure sensor 21 and the second pressure sensor 22 are respectively arranged at the inlet and the outlet of the floor heating circuit of the first room 61, the second room 62, the third room 63 and the fourth room 64, the first pressure sensor 21 at the inlet of the floor heating circuit of the first room 61 is used for measuring the pressure at the inlet of the floor heating circuit of the first room 61, and the second pressure sensor 22 at the outlet of the floor heating circuit of the first room 61 is used for measuring the pressure at the outlet of the floor heating circuit of the first room 61.
In step S3, the inlet pressure of the floor heating circuit in the set exhaust area is a, the outlet pressure of the floor heating circuit in the set exhaust area is B, and the difference between the inlet pressure and the outlet pressure of the floor heating circuit in the set exhaust area is a-B.
In step S4, optionally, the first preset condition includes: A-B & gt B1, wherein B is the outlet pressure of the floor heating circuit in the set exhaust area, A is the inlet pressure of the floor heating circuit in the set exhaust area, and B1 is a first preset value. Because when having gas to exist among the ground heating loop, the pressure of ground heating loop's export can grow, that is to say, compare in when not having gas to exist among the ground heating loop, when having gas to exist among the ground heating loop, set for in the exhaust area the difference of inlet pressure and the outlet pressure of ground heating loop can grow. Therefore, through the setting of the first preset value, when whether the difference value between the inlet pressure and the outlet pressure of the floor heating loop in the set exhaust area is larger than the preset value or not, whether gas exists in the floor heating loop or not is directly reflected, and the floor heating loop in the set exhaust area is reminded of needing to be exhausted. Preferably, 15KPa ≦ b1 ≦ 40 KPa; therefore, a reasonable differential pressure value is determined through experiments, and accurate monitoring of gas in the floor heating loop is formed.
The advantage that sets up like this lies in, through right set for in the exhaust area the pressure of the entry and the export of ground heating return circuit monitors, through set for in the exhaust area the difference of the entry pressure and the export pressure of ground heating return circuit reflects whether remain in the ground heating return circuit gaseous, it is right whether remain in the ground heating return circuit gaseous monitoring, and control set for in the exhaust area ground heating return circuit exhausts, avoids residual air influences the heating effect or produces the abnormal sound in the ground heating return circuit, promotes user experience, also can avoid too much leads to the unable normal operating of host computer among the ground heating return circuit.
Before the step S2, after the step S1, the method further includes: and controlling a water pump of the heat pump system to keep a preset rotating speed to operate for a first preset time. Here, the first preset time period is different according to different rotation speeds of the water pump, and the greater the rotation speed of the water pump is, the smaller the first preset time period is, the smaller the rotation speed of the water pump is, and the greater the first preset time period is. That is to say, after the floor heating loop in the set exhaust area is opened, the water pump of the heat pump system is controlled to keep running at a preset rotating speed for a certain period of time, and after the water pump of the heat pump system runs for a certain period of time, the pressure of the inlet and the pressure of the outlet of the floor heating loop in the set exhaust area are made to approach to be stable, so that the accuracy of measurement is improved.
Preferably, the preset rotating speed is the maximum rotating speed of the water pump. That is, after the floor heating circuit in the set exhaust area is opened, a water pump of the heat pump system is controlled to operate at the maximum rotation speed for a first preset time period. Here, the first preset time period may be 20 seconds, 30 seconds, or 40 seconds. Therefore, the water pump of the heat pump system is controlled to run at the maximum rotating speed, so that on one hand, the pressure of fluid in the floor heating loop can be increased, and thus, greater thrust to gas is formed, and the gas is convenient to discharge; on the other hand, the time for the fluid in the floor heating loop to reach a stable state can be saved.
In step S4, the second preset condition includes: b2 is more than or equal to A-B, wherein B is the outlet pressure of the floor heating loop in the set exhaust area, A is the inlet pressure of the floor heating loop in the set exhaust area, and B2 is a second preset value. That is to say, when A-B is less than or equal to B2, exhausting the gas in the floor heating circuit in the set exhaust area, and controlling the floor heating circuit to be closed. And prompting that the floor heating loop in the set exhaust area finishes exhausting when the difference value between the inlet pressure and the outlet pressure of the floor heating loop in the set exhaust area is not larger than the second preset value through the setting of the second preset value.
Alternatively, b2 < b1, that is, the preset value required for exhausting is greater than the preset value for exhausting completion, and only when the first preset value is large enough, the requirement for exhausting is indicated, and when the second preset value is small enough, the exhausting is indicated. Optionally, b2 is equal to b1, at this time, the first preset value is equal to the second preset value, when the difference between the inlet pressure and the outlet pressure of the floor heating circuit in the set exhaust area is higher than the first preset value, exhaust is prompted to be performed, and when the difference between the inlet pressure and the outlet pressure of the floor heating circuit in the set exhaust area is smaller than or equal to the first preset value, exhaust completion is prompted. Preferably, 15KPa ≦ b1 ≦ 40 KPa; therefore, a reasonable differential pressure value is determined through experiments, and accurate monitoring of gas in the floor heating loop is formed.
Alternatively, the second preset condition may be a duration of continuing to be opened after the difference between the pressures of the outlet and the inlet of the floor heating circuit in the set exhaust area meets the first preset condition. This allows direct control of the time the floor heating circuit remains open, thereby controlling the discharge of gas.
Optionally, the second preset condition includes: the inlet pressure and the outlet pressure of the floor heating circuit in the set exhaust area are continuously less than or equal to b2 and maintained for a second preset time period. That is, when the difference value between the inlet pressure and the outlet pressure of the floor heating circuit in the set exhaust area maintains the state of A-B being less than or equal to B2 for a certain period of time, the completion of exhaust is prompted. The second preset time period is related to the air amount in the floor heating loop, and may be 15 seconds, 20 seconds or 25 seconds, where a specific value of the second preset time period is not limited. The advantage that sets up like this lies in, and it is great to avoid the measuring error that pressure instability caused, through continuing the extension warm up the opening time of return circuit, guarantee to warm up the gaseous exhaust completely in the return circuit.
In an embodiment of the present invention, there are a plurality of the set exhaust areas, and the opening the floor heating circuit in the set exhaust area includes: opening the floor heating loop in one of the set exhaust areas, and keeping the floor heating loops of all the other set exhaust areas closed. And sequentially opening the floor heating circuits in one of the set exhaust areas, keeping the floor heating circuits in all other set exhaust areas closed, and executing the step S2, the step S3 and the step S4. That is to say, only one floor heating circuit in the set exhaust area is opened each time, the floor heating circuits in all other set exhaust areas are ensured to be closed, and the steps S2, S3 and S4 are repeated in sequence to realize the exhaust of the floor heating circuit in each set exhaust area in sequence.
As described in the above embodiment, when exhausting air to the floor heating circuits of the first room 61, the second room 62, the third room 63, and the fourth room 64, the floor heating circuit of the first room 61 may be opened first, the floor heating circuits of the second room 62, the third room 63, and the fourth room 64 may be kept closed, and the inlet pressure and the outlet pressure of the floor heating circuit in the first room 61 may be obtained; calculating a difference in pressure at an outlet and an inlet of the floor heating circuit in the first room 61; and when the difference value between the inlet pressure and the outlet pressure of the floor heating loop in the first room 61 meets a first preset condition, controlling the floor heating loop in the first room 61 to be closed after meeting a second preset condition, and finishing the exhaust of the floor heating loop in the first room 61. Then, opening the floor heating loop of the second room 62, keeping the floor heating loops of the first room 61, the third room 63 and the fourth room 64 closed, and acquiring the inlet pressure and the outlet pressure of the floor heating loop in the second room 62; calculating a difference in inlet and outlet pressures of the floor heating circuit in the second room 62; and when the difference value between the inlet pressure and the outlet pressure of the floor heating loop in the second room 62 meets a first preset condition, controlling the floor heating loop in the second room 62 to be closed after meeting a second preset condition, and finishing the exhaust of the floor heating loop of the second room 62. And circulating in sequence until the exhaust of the floor heating loops of all rooms is completed.
The advantage that sets up like this lies in, when carrying out one set for the exhaust of regional ground heating return circuit of exhaust, keep other set for the exhaust region ground heating return circuit closes to can increase in the exhaust set for the pressure value of the regional ground heating return circuit of exhaust, thereby form the thrust that is bigger to gas, be convenient for gaseous discharge.
Because gas may remain at the common end of the floor heating loop in different set exhaust areas, the finishing of the exhaust of the floor heating loop in the set exhaust areas comprises: the exhaust of the floor heating loops of all the set exhaust areas is completed in sequence; accomplish in proper order all set for the exhaust region after the exhaust of ground heating circuit, still include: and opening all the floor heating loops in the set exhaust area, and controlling all the floor heating loops in the set exhaust area to be closed after a third preset condition is met. For example, after the air exhaust of the floor heating circuits of the first room 61, the second room 62, the third room 63, and the fourth room 64 is sequentially completed, the floor heating circuits of the first room 61, the second room 62, the third room 63, and the fourth room 64 are opened. The advantage that sets up like this lies in, when accomplishing set for the exhaust region the exhaust back of ground heating circuit, open all set for the exhaust region ground heating circuit can realize the difference set for the exhaust region the public area of ground heating circuit exhausts to the realization is to the exhaust of whole heat pump system's pipeline.
Here, the third preset condition includes: and the floor heating loops in all the set exhaust areas are kept in an open state for a third preset time. That is to say, all the floor heating loops in the set exhaust area are controlled to be opened, and after the floor heating loops in the set exhaust area are controlled to be closed after the floor heating loops are kept for a certain period of time. The third preset time period is related to the air amount in the floor heating loop, and may be 15 seconds, 20 seconds or 25 seconds, where the specific value of the second preset time period is not limited. And the gas at the common end of different set exhaust areas is exhausted by controlling the opening time.
In the embodiment of the invention, in the step S4, before the floor heating circuit in the set exhaust area is controlled to be closed after a second preset condition is met, when a difference value between an inlet pressure and an outlet pressure of the floor heating circuit in the set exhaust area meets a first preset condition, a water pump of the heat pump system is controlled to operate at a variable speed. That is to say, when detecting to carry out the exhaust, control the rotational speed of water pump constantly changes, the rotational speed of water pump can be the wave change to produce undulant, be convenient for discharge the gas that adheres to on the pipeline.
The present invention also provides an exhaust apparatus of a heat pump system, as shown in fig. 3, including:
the control unit 1 is used for opening the floor heating loop in the set exhaust area;
the detection unit 2 is used for acquiring the inlet pressure and the outlet pressure of the floor heating loop in the set exhaust area;
a determining unit 3, configured to calculate a difference between an inlet pressure and an outlet pressure of the floor heating circuit in the set exhaust area;
the control unit 1 is further configured to control the floor heating loop in the set exhaust area to be closed after meeting a second preset condition when a difference value between an inlet pressure and an outlet pressure of the floor heating loop in the set exhaust area meets a first preset condition.
The exhaust device of the heat pump system and the exhaust method of the heat pump system have the same beneficial effects, and are not repeated herein.
The present invention also provides a heat pump system comprising a computer readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor to implement the exhaust method of the heat pump system according to any of the above embodiments.
The heat pump system and the exhaust method of the heat pump system have the same beneficial effects, and are not repeated herein.
As shown in fig. 1, the heat pump system further includes a first pressure sensor 21 and a second pressure sensor 22, the first pressure sensor 21 is disposed at an inlet of the floor heating circuit in the set exhaust area, and the second pressure sensor 22 is disposed at an outlet of the floor heating circuit in the set exhaust area. Here, through the arrangement of the first pressure sensor 21 and the second pressure sensor 22, the inlet pressure and the outlet pressure of the floor heating circuit in the set exhaust area are respectively detected, so that the exhaust condition of the floor heating circuit can be conveniently monitored.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (13)
1. The exhaust method of the heat pump system is characterized in that the heat pump system comprises a floor heating loop with a set exhaust area, and the exhaust method comprises the following steps:
opening the floor heating loop in the set exhaust area;
acquiring inlet pressure and outlet pressure of the floor heating loop in the set exhaust area;
determining a difference between the inlet pressure and the outlet pressure;
and when the difference value meets a first preset condition, controlling the floor heating loop in the set exhaust area to be closed after meeting a second preset condition so as to finish the exhaust of the floor heating loop in the set exhaust area.
2. The exhaust method of the heat pump system according to claim 1, further comprising, before said obtaining the inlet pressure and the outlet pressure of the floor heating circuit in the set exhaust area:
and controlling a water pump of the heat pump system to keep a preset rotating speed to operate for a first preset time.
3. The exhaust method of the heat pump system according to claim 2, wherein the preset rotation speed is a maximum rotation speed of the water pump.
4. The exhaust method of the heat pump system according to claim 1, wherein the first preset condition includes: A-B > B1, where A is the inlet pressure, B is the outlet pressure, and B1 is a first preset value.
5. The exhaust method of the heat pump system according to claim 1, wherein the second preset condition includes: b2, where A is the inlet pressure, B is the outlet pressure, and B2 is a second predetermined value.
6. The exhaust method of the heat pump system according to claim 5, wherein the second preset condition further includes: the inlet pressure and the outlet pressure are continuously less than or equal to b2 and maintained for a second preset time period.
7. The exhaust method of the heat pump system according to any one of claims 1 to 6, wherein there are a plurality of the set exhaust areas, and the opening of the floor heating circuit in the set exhaust areas comprises: opening the floor heating loop in one of the set exhaust areas, and keeping the floor heating loops of all the other set exhaust areas closed.
8. The exhaust method of the heat pump system according to claim 7, wherein the performing exhaust of the floor heating circuit of the set exhaust area includes: the exhaust of the floor heating loops of all the set exhaust areas is completed in sequence;
accomplish in proper order all set for the exhaust region after the exhaust of ground heating circuit, still include: and opening all the floor heating loops in the set exhaust area, and controlling all the floor heating loops in the set exhaust area to be closed after a third preset condition is met.
9. The exhaust method of the heat pump system according to claim 8, wherein the third preset condition includes: and the floor heating loops in all the set exhaust areas are kept in an open state for a third preset time.
10. The exhaust method of the heat pump system according to claim 1, wherein when the difference value satisfies a first preset condition, a water pump of the heat pump system is controlled to operate at a variable speed.
11. An exhaust apparatus of a heat pump system, comprising:
the control unit (1) is used for opening a floor heating loop in a set exhaust area;
the detection unit (2) is used for acquiring the inlet pressure and the outlet pressure of the floor heating loop in the set exhaust area;
a determination unit (3) for calculating a difference between the inlet pressure and the outlet pressure of the floor heating circuit in the set exhaust area;
the control unit (1) is further used for controlling the floor heating loop in the set exhaust area to be closed after the floor heating loop meets a second preset condition when the difference value meets a first preset condition.
12. A heat pump system, comprising a computer readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor to implement the exhaust method of the heat pump system according to any one of claims 1-10.
13. The heat pump system according to claim 12, further comprising a first pressure sensor (21) and a second pressure sensor (22), said first pressure sensor (21) and said second pressure sensor (22) being respectively disposed at an inlet and an outlet of the floor heating circuit in a set exhaust area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010301755.0A CN111425931A (en) | 2020-04-16 | 2020-04-16 | Exhaust method and device of heat pump system and heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010301755.0A CN111425931A (en) | 2020-04-16 | 2020-04-16 | Exhaust method and device of heat pump system and heat pump system |
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| CN111425931A true CN111425931A (en) | 2020-07-17 |
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| CN202010301755.0A Pending CN111425931A (en) | 2020-04-16 | 2020-04-16 | Exhaust method and device of heat pump system and heat pump system |
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| CN (1) | CN111425931A (en) |
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