阅读说明：本技术 变频空调器的控制方法 (The control method of transducer air conditioning ) 是由 汪亚东 张龙 于 2019-07-15 设计创作，主要内容包括：本发明属于空调器技术领域,具体涉及一种变频空调器的控制方法。本发明旨在解决现有具备废热回收功能的空调系统的节能效果不佳的问题。为此目的,本发明的变频空调器的控制方法能够根据不同的支路运行情况确定变频泵的频率模式,以便通过变频泵的变频运行在满足本发明的空调器的基本运行需求和热水加热需求、实现废热回收的基础上提升该空调器的节能效果。再者,本发明的控制方法还能够根据变频泵的当前频率模式和压缩机的频率变化情况,确定变频泵是否需要降频,并且在变频泵需要降频的情形下,针对变频泵的不同频率模式执行相应的降频方案,从而对空调器的节能效果再一次进行优化提升。(The invention belongs to air conditioner technical fields, and in particular to a kind of control method of transducer air conditioning.Present invention seek to address that the problem that the energy-saving effect of the existing air-conditioning system for having waste heat recovery function is bad.For this purpose, the control method of transducer air conditioning of the invention can determine the frequency mode of variable frequency pump according to different branch operating condition, will pass through the energy-saving effect that the converting operation of variable frequency pump promotes the air conditioner on the basis of meeting the basic operation demand and hot water heating demand, realization Waste Heat Recovery of air conditioner of the invention.Furthermore, control method of the invention can also be according to the current frequency mode of variable frequency pump and the frequency situation of change of compressor, determine whether variable frequency pump needs frequency reducing, and in the case of variable frequency pump needs frequency reducing, corresponding frequency reducing scheme is executed for the different frequency mode of variable frequency pump, so that the energy-saving effect to air conditioner optimizes promotion again.)

1. a kind of control method of transducer air conditioning, which is characterized in that the transducer air conditioning includes compressor, electronic expansion Valve, evaporator, condenser and heat exchange water route, the compressor, the electric expansion valve, the evaporator and the condenser structure At the coolant circulating system of closed loop, the heat exchange water route includes the first heat exchange branch, the second heat exchange branch, variable frequency pump and valve group Part, the first heat exchange branch road are provided with water storage device, and the second heat exchange branch road is provided with water supply device and draining dress It sets, any one in the first heat exchange branch and the heat exchange branch can be connected to the variable frequency pump, the condensation Device is radiated by flowing water in the first heat exchange branch or the second heat exchange branch, and the valve member can make institute It states heat exchange water route and switches between the first heat exchange branch and the second heat exchange branch, the variable frequency pump control described first is changed The flow regime of hot branch or the water in the second heat exchange branch,

The control method includes:

Obtain the frequency mode of the variable frequency pump；

Obtain the frequency situation of change of the compressor；

According to the frequency situation of change of the frequency mode of the variable frequency pump and the compressor, make the variable frequency pump selectively with Corresponding frequency reducing mode is run.

2. control method according to claim 1, which is characterized in that " according to the frequency mode of the variable frequency pump and described The frequency situation of change of compressor, runs the variable frequency pump selectively in a manner of corresponding frequency reducing " the step of include:

If the variable frequency pump is run under high frequency mode with the first raising frequency rate raising frequency and the compressor frequency reducing is run, It is reduced to the variable frequency pump after the first setpoint frequency again with the operation of the second raising frequency rate raising frequency, wherein

The first raising frequency rate is greater than the second raising frequency rate.

3. control method according to claim 2, which is characterized in that " variable frequency pump is made to be reduced to the first setpoint frequency Afterwards again with the second raising frequency rate raising frequency operation " the step of include:

After so that the variable frequency pump is run the first preset time with present operating frequency, it is just reduced to the first setpoint frequency, then with the The operation of two raising frequency rate raising frequencies.

4. control method according to claim 1, which is characterized in that " according to the frequency mode of the variable frequency pump and described The frequency situation of change of compressor, runs the variable frequency pump selectively in a manner of corresponding frequency reducing " the step of include:

If the variable frequency pump is run under low frequency mode and the compressor frequency reducing is run, it is reduced to the variable frequency pump The operation of second setpoint frequency.

5. control method according to claim 4, which is characterized in that " variable frequency pump is made to be reduced to the second setpoint frequency Operation " the step of include:

After making the variable frequency pump run the second preset time with present operating frequency, just make that the second setpoint frequency is reduced to run.

6. control method according to any one of claim 1 to 5, which is characterized in that " obtaining the frequency of the variable frequency pump Before the step of rate mode ", the control method further include:

Obtain the valve opening and closing information of the valve member；

According to the valve opening and closing information, the present branch operating condition in the heat exchange water route is determined；

According to the present branch operating condition, the frequency mode of the variable frequency pump is determined.

7. control method according to claim 6, which is characterized in that " according to the present branch operating condition, determine institute State the frequency mode of variable frequency pump " the step of include:

If the heat exchange water route is run with the first heat exchange branch, the temperature of the water in the first heat exchange branch is obtained Parameter；

If the temperature parameter increases and raised temperature parameter is less than set temperature, make the variable frequency pump in high frequency mode Under with the first raising frequency rate raising frequency operation.

8. control method according to claim 7, which is characterized in that in the variable frequency pump, raising frequency is run under high frequency mode In the case of, the control method further include:

If the variable frequency pump raising frequency switches to the heat-exchanging water routing the first heat exchange branch to maximum operation frequency The second heat exchange branch, while the variable frequency pump being made to switch to low frequency mode operation by high frequency mode.

9. control method according to claim 6, which is characterized in that " according to the present branch operating condition, determine institute State the frequency mode of variable frequency pump " the step of include:

If the temperature parameter of the water in first heat exchange water route is equal to set temperature, make heat-exchanging water routing described the One heat exchange branch switches to the second heat exchange branch, while runs the variable frequency pump with low frequency mode.

10. control method according to claim 6, which is characterized in that " according to the present branch operating condition, determine The step of running frequency of the variable frequency pump " includes:

If the heat exchange water route is run with the second heat exchange branch, run the variable frequency pump with low frequency mode.

Technical field

The invention belongs to air conditioner technical fields, and in particular to a kind of control method of transducer air conditioning.

Background technique

Due to summer weather heat, people's can also be increased accordingly with water, and city will be increased with water power supply, by Be not in the temperature requirement of summer water it is very high, in the epoch of energy shortages, if by air-conditioning generate waste heat be used to heat life Water is applied flexibly to meet the daily demand of people, can both exempt the consumption with hot water to energy such as combustion gas, is imitated to global warming is improved Should also have certain contribution.

A kind of air-conditioning system is now provided.Compared with existing air conditioner, which can absorb air-conditioning including one and give up Heat and the cycle heat exchange water route of heat hot water and an acyclic heat exchange water route for having water inlet end and a water outlet, so as to according to heat The demand for heat of water exchanges heat to switch above-mentioned two water routes.Due to the flow demand not phase of the water in two water routes that exchange heat Together, therefore, if sending demand and being arranged to determine frequency pump to can satisfy the water transport in two heat exchange water routes, will lead to the energy need not It wastes.For this problem, now consider to provide a kind of and air-conditioning system more matched control method in overall heat exchange water route, with Just the energy-saving effect of the air-conditioning system is further promoted.

Summary of the invention

In order to solve the above problem in the prior art, in order to solve the above-mentioned air-conditioning system for having waste heat recovery function The bad problem of energy-saving effect, the present invention provides a kind of control method of transducer air conditioning, the transducer air conditioning includes Compressor, electric expansion valve, evaporator, condenser and heat exchange water route, the compressor, the electric expansion valve, the evaporation Device and the condenser constitute the coolant circulating system of closed loop, and the heat exchange water route includes the first heat exchange branch, the second heat exchange branch Road, variable frequency pump and valve member, the first heat exchange branch road are provided with water storage device, and the second heat exchange branch road is provided with Water supply device and drainage arrangement, it is described first heat exchange branch and it is described heat exchange branch in any one can be with the frequency conversion Pump connection, the condenser is radiated by flowing water in the first heat exchange branch or the second heat exchange branch, described Valve member can be such that the heat exchange water route switches between the first heat exchange branch and the second heat exchange branch, the frequency conversion The flow regime of the pump control first heat exchange branch or the water in the second heat exchange branch, the control method include: Obtain the frequency mode of the variable frequency pump；Obtain the frequency situation of change of the compressor；According to the frequency mould of the variable frequency pump The frequency situation of change of formula and the compressor, runs the variable frequency pump selectively in a manner of corresponding frequency reducing.

In the optimal technical scheme of above-mentioned control method, " according to the frequency mode of the variable frequency pump and the compressor Frequency situation of change, run the variable frequency pump selectively in a manner of corresponding frequency reducing " if the step of include: the change Frequency pump with the operation of the first raising frequency rate raising frequency and compressor frequency reducing operation, then drops the variable frequency pump under high frequency mode Again with the operation of the second raising frequency rate raising frequency after down to the first setpoint frequency, wherein the first raising frequency rate is greater than described second Raising frequency rate.

In the optimal technical scheme of above-mentioned control method, " make the variable frequency pump be reduced to after the first setpoint frequency again with Second raising frequency rate raising frequency operation " the step of include: make the variable frequency pump with present operating frequency run the first preset time after, It is reduced to the first setpoint frequency, then just with the operation of the second raising frequency rate raising frequency.

In the optimal technical scheme of above-mentioned control method, " according to the frequency mode of the variable frequency pump and the compressor Frequency situation of change, run the variable frequency pump selectively in a manner of corresponding frequency reducing " the step of further include: if described Variable frequency pump is run under low frequency mode and the compressor frequency reducing is run, then the variable frequency pump is made to be reduced to the second setpoint frequency Operation.

In the optimal technical scheme of above-mentioned control method, " making the variable frequency pump that the second setpoint frequency is reduced to run " Step includes: after so that the variable frequency pump is run the second preset time with present operating frequency, the second setpoint frequency to be just reduced to transport Row.

In the optimal technical scheme of above-mentioned control method, " frequency mode for obtaining the variable frequency pump " the step of it Before, the control method further include: in the case of the variable frequency pump brings into operation, obtain the valve opening and closing of the valve member Information；According to the valve opening and closing information, the present branch operating condition in the heat exchange water route is determined；According to the present branch Operating condition determines the frequency mode of the variable frequency pump.

In the optimal technical scheme of above-mentioned control method, " according to the present branch operating condition, the frequency conversion is determined The frequency mode of pump " if the step of include: the heat exchange water route with the first heat exchange branch operation, obtain described first The temperature parameter of water in heat exchange branch；If the temperature parameter increases and raised temperature parameter is less than set temperature, Make the variable frequency pump under high frequency mode with the operation of the first raising frequency rate raising frequency.

In the optimal technical scheme of above-mentioned control method, in the variable frequency pump situation that raising frequency is run under high frequency mode Under, the control method further include: if the variable frequency pump raising frequency makes described in the heat-exchanging water routing to maximum operation frequency First heat exchange branch switches to the second heat exchange branch, while the variable frequency pump being made to switch to low frequency mode fortune by high frequency mode Row.

In the optimal technical scheme of above-mentioned control method, " according to the present branch operating condition, the frequency conversion is determined The frequency mode of pump " if the step of include: it is described first heat exchange water route in water temperature parameter be equal to set temperature, make Heat-exchanging water routing the first heat exchange branch switches to the second heat exchange branch, while making the variable frequency pump with Low-frequency Modes Formula operation.

In the optimal technical scheme of above-mentioned control method, " according to the present branch operating condition, the frequency conversion is determined The running frequency of pump " if the step of include: the heat exchange water route with the second heat exchange branch operation, make the variable frequency pump It is run with low frequency mode.

It will be appreciated to those of skill in the art that the control method of transducer air conditioning of the invention can be according to variable frequency pump Current frequency mode and compressor frequency situation of change, determine whether variable frequency pump needs frequency reducing, and need in variable frequency pump In the case of frequency reducing, corresponding frequency reducing scheme is executed for the different frequency mode of variable frequency pump, thus meeting transducer air conditioning Basic operation demand, do not influence to reduce the energy consumption of variable frequency pump as much as possible on the basis of its condenser normally exchanges heat, to make The energy-saving effect of air conditioner can also further be promoted while realizing Waste Heat Recovery by obtaining air conditioner.

Detailed description of the invention

The preferred embodiment of the present invention described with reference to the accompanying drawings.Attached drawing are as follows:

Fig. 1 is the key step flow chart of the control method of transducer air conditioning of the invention；

Fig. 2 is the first operation curve figure of the control method of transducer air conditioning of the invention；

Fig. 3 is the first operation curve figure of the control method of transducer air conditioning of the invention.

Specific embodiment

It will be apparent to a skilled person that in the description of the present invention, although according to particular order in the application Describe each step of control method of the invention, but these be not sequentially it is restrictive, without departing from of the invention Under the premise of basic principle, those skilled in the art can execute the step in a different order.

The bad problem of energy-saving effect based on the air-conditioning system for having waste heat recovery function pointed out in background technique, this Invention provides a kind of control method of transducer air conditioning, it is intended to further be promoted on the basis of air conditioner realizes Waste Heat Recovery The energy-saving effect of air conditioner.

In the inventive solutions, the present invention provides a kind of transducer air conditioning, which includes compression Mechanical, electrical sub- expansion valve, evaporator, condenser and heat exchange water route.Compressor, electric expansion valve, evaporator and condenser composition are closed The coolant circulating system of ring.Above-mentioned transducer air conditioning is provided with air supply device in the position of evaporator, so as to by evaporator heat exchange The cold wind generated afterwards is transported to interior.Heat exchange water route specifically includes the first heat exchange branch, the second heat exchange branch, variable frequency pump and valve Component, wherein the first heat exchange branch road is provided with water storage device, and the second heat exchange branch road is provided with water supply device and draining dress It sets, any one in the first heat exchange branch and the branch that exchanges heat can be connected to variable frequency pump.First heat exchange branch and second changes At least part of hot branch flows through condenser, so that condenser can be by the first heat exchange branch or the second heat exchange branch Flowing water heat dissipation.Valve member includes multiple switch valves for being respectively arranged at the first heat exchange branch and the second heat exchange branch, on The control module for stating transducer air conditioning can control multiple switch valve and turn on or off, and be separated with will pass through open/close portion The mode for closing valve switches the work water route in heat exchange water route between the first heat exchange branch and the second heat exchange branch, to be switched to The branch that condenser exchanges heat.Above-mentioned variable frequency pump can control the stream of the first heat exchange branch or the water in the second heat exchange branch Dynamic state promotes water to flow in the first heat exchange branch or the second heat exchange branch, the water in regulation first/second heat exchange branch Flow.

By the system structure of above-mentioned transducer air conditioning it is found that the condenser of transducer air conditioning can pass through the first heat exchange branch Or second heat exchange branch in flowing water exchange heat.And when the condenser is exchanged heat by the first heat exchange branch, it should Water in heat exchange branch circulates, and stores so that the heat released using condenser is heated water to after certain temperature to storage In water installations, taken for user.When condenser is exchanged heat by the second heat exchange branch, water and condenser in the branch into It is discharged after row heat exchange.Since the flow path of the water of two heat exchange branches is different, in the first heat exchange branch with condenser The temperature of water for carrying out heat exchange gradually rises, and is gradually reduced with the temperature difference of condenser, and in the second heat exchange branch with condenser The temperature for carrying out the water of heat exchange is the temperature of substantially invariable supply water.In consideration of it, for the different branch in heat exchange water route Exchange heat situation, and the frequency mode of frequency conversion pump operation is different.

The preferred embodiment of the present invention is described below with reference to above-mentioned transducer air conditioning.

It is the key step flow chart of the control method of transducer air conditioning of the invention referring initially to Fig. 1, Fig. 1.Such as Fig. 1 institute Show, control method of the invention includes:

Step S1: the frequency mode of variable frequency pump is obtained；

Step S2: the frequency situation of change of compressor is obtained；

Step S3: according to the frequency situation of change of the frequency mode of variable frequency pump and compressor, make variable frequency pump selectively with Corresponding frequency reducing mode is run.

In step sl, the frequency mode of variable frequency pump specifically refers to the operational mode in the different frequency scope of variable frequency pump. For example, variable frequency pump is divided into high band in a higher frequency range, when variable frequency pump is run with the frequency in the high band Mode be high frequency mode.Similarly, frequency mode can also include low frequency mode.In this step, frequency mode is obtained Concrete mode be not limit.For example, the acquisition modes of frequency mode can be the control unit of general transducer air conditioning Active detecting simultaneously obtains, and can also be that control associated there is singly when transducer air conditioning determines the frequency mode of variable frequency pump The information of representative frequency mode that member is automatically generated and stored, directly transfers currently represent the information of frequency mode i.e. when needed It can.

In step s 2, the frequency that the frequency situation of change of compressor specifically refers to compressor increases or reduced feelings Condition.Similar, the monitoring unit which can also be changed by that can monitor the frequency of compressor obtains in real time Either transfer, the information that automatically generates and store in compressor every secondary frequencies variation.

In step s3, the frequency mode of variable frequency pump can represent the current heat exchange demand of the condenser of transducer air conditioning, The frequency situation of change of compressor can represent the current refrigeration situation of transducer air conditioning.According to the frequency mode and pressure of variable frequency pump The frequency situation of change of contracting machine runs variable frequency pump frequency reducing in a certain way under suitable opportunity, can be based on transducer air conditioning Basic operation demand and current operation demand reduce variable frequency pump energy consumption, to further promote the section of above-mentioned transducer air conditioning It can effect.

Further, step S3 includes:

If variable frequency pump with the operation of the first raising frequency rate raising frequency and compressor frequency reducing operation, makes to become under high frequency mode Frequency pump is reduced to after the first setpoint frequency again with the operation of the second raising frequency rate raising frequency, wherein the first raising frequency rate is greater than second liter Frequency rate.

In above-mentioned steps, variable frequency pump with the operation of the first raising frequency rate raising frequency, then shows current under high frequency mode In the situation that exchanges heat, heat that absorptive condenser sheds, water in the branch to exchange heat with condenser flow be gradually increased Variation tendency under can meet the heat exchange demand of condenser.At this point, if room temperature has reached the established standards of user, The compressor frequency reducing of air conditioner is run, then the heat exchange demand of its condenser reduces.In this case, it is currently run based on variable frequency pump The frequency of variable frequency pump is lowered certain amplitude and reduces the raising frequency rate of variable frequency pump by the frequency variation pattern in scheme, with Just the heat exchange demand of the condenser after frequency reducing is adapted to.Wherein, frequency liter when what raising frequency rate represented is the operation of variable frequency pump raising frequency At high speed.Above-mentioned first raising frequency rate and the second raising frequency rate can be set according to the practical operation situation of transducer air conditioning Or adjustment.

Further, the step for " being reduced to variable frequency pump after the first setpoint frequency again with the operation of the second raising frequency rate raising frequency " Suddenly include:

After so that variable frequency pump is run the first preset time with present operating frequency, it is reduced to the first setpoint frequency and just with second The operation of raising frequency rate raising frequency.

In above-mentioned steps, after transducer air conditioning frequency reducing operation, although one tentering of heat exchange slump in demand of condenser Degree, but the initial stage lowered in its demand that exchanges heat, a large amount of waste heats that condenser is generated when exchanging heat before flow becomes smaller do not have also Have and is absorbed completely by the water in heat exchange branch.At this point, if lowering the running frequency of variable frequency pump immediately, reducing in heat exchange branch The flow of water may result in the waste heat around condenser and be difficult in the water for being quickly transferred to heat exchange branch, to make condenser Can be in the higher environment of ambient temperature, the change thermal velocity of influence condenser within a very long time, and then influence air-conditioning The normal operation of device.In consideration of it, if it is first made to run a period of time, Ji Kexian with current operation frequency before variable frequency pump frequency reducing A large amount of waste heats of condenser are quickly absorbed, then further according to the stream of the water of the subsequent heat exchange demand adjustment heat exchange branch of condenser Emotionally condition, thus solve the problems, such as it is above-mentioned it is possible that condenser heat exchange it is abnormal.Wherein, above-mentioned first setpoint frequency can To be set according to the frequency reducing amplitude of compressor, temperature of the running environment of transducer air conditioning etc., as long as the first of setting sets Determining frequency not influences the normal heat exchange of condenser.First preset time can be according to the practical heat exchange need of condenser before frequency reducing It asks and is set.

In alternatively possible embodiment, step S3 includes:

If variable frequency pump is run under low frequency mode and compressor frequency reducing is run, variable frequency pump is made to be reduced to the second setting Frequency operation.

In above-mentioned steps, temperature has reached the situation of the established standards of user, transducer air conditioning frequency reducing operation indoors Under, the heat exchange demand of condenser weakens.At this point, making variable frequency pump that the second setpoint frequency is reduced to run, to adapt to condenser Variation after heat exchange demand.Wherein, the practical heat exchange demand after the second setpoint frequency can change according to condenser is set It is fixed.

Further, the step of " make variable frequency pump be reduced to the second setpoint frequency run " includes:

After so that variable frequency pump is run the second preset time with present operating frequency, variable frequency pump is just made to be reduced to the second setpoint frequency Operation.

In above-mentioned steps, before running variable frequency pump frequency reducing, the second preset time is first run with current operation frequency, with Just frequency reducing is carried out again after having absorbed a large amount of waste heats of condenser, avoids condenser heat exchange bad.Similarly, above-mentioned second setting frequency Rate and the second preset time can also be set according to the actual motion demand of transducer air conditioning, with the first setpoint frequency and There is no any incidence relation or precedence relationships between first preset time, and " first ", " second " in this are merely to right Setpoint frequency and preset time under different implement scenes make differentiation.

Preferably, before the frequency mode of variable frequency pump " obtain " the step of, control method of the invention further include:

In the case of variable frequency pump brings into operation, the valve opening and closing information of valve member is obtained；

In above-mentioned steps, the valve opening and closing information of valve member specifically refers to opening for each valve that valve member includes Close situation.The acquisition modes of the valve opening and closing situation are not to limit, for example, can directly be detected by detecting element each The closing situation of valve can also be that the control module of above-mentioned transducer air conditioning exists to be aggregated into above-mentioned valve opening and closing information The information for having generated and having stored after having adjusted valve switch state every time.

According to valve opening and closing information, the present branch operating condition in heat exchange water route is determined；

According to present branch operating condition, the frequency mode of variable frequency pump is determined.

In above-mentioned steps, " present branch operating condition " include currently be condenser exchanged heat, absorption condensation The specific branch of device heat and the operating status of the branch are (in such as continuous service, i.e. by the water in switching state and the branch State etc.), so as to combine current operating status determine the heat exchange situation of condenser whether normally, can satisfy air conditioner Normal operation demand, and by control variable frequency pump running frequency come control heat exchange branch in water mobility status, to condensation The heat exchange situation of device is regulated and controled.

Further, the step of above-mentioned " according to present branch operating condition, determining the frequency mode of variable frequency pump " includes:

If the water route that exchanges heat obtains the temperature parameter of the water in the first heat exchange branch with the first heat exchange branch operation；

If temperature parameter increase and raised temperature parameter be less than set temperature, make variable frequency pump under high frequency mode with The operation of first raising frequency rate raising frequency.

Water in above-mentioned steps, when the situation that the water route that exchanges heat is run with the first heat exchange branch, in the first heat exchange branch Flowing through condenser each time can the heat that sheds of absorptive condenser.Water first heat exchange branch internal circulation flow situation Under, the temperature of water constantly increases.It follows that obtaining water therein when the first heat exchange branch exchanges heat to condenser Temperature parameter, can know the heated condition of water, to judge subsequent whether need to continue whithin a period of time to heat the branch Interior water determines whether the demand with switching heat exchange branch, to be sentenced according to specific demand for heat change conditions The operation demand of disconnected variable frequency pump, and then determine the running frequency of variable frequency pump；It is increased in temperature parameter and raised temperature parameter is small In the case of set temperature, shows that the water in the first heat exchange branch is not up to the standard for stopping heating, do not there is switching yet currently Water in the demand of branch, the first heat exchange branch still needs to heat.But since the temperature of the water in the first heat exchange branch is gradually climbed Rise, cause the temperature gap of water and condenser locations in the first heat exchange branch to become smaller, first heat exchange branch exchange capability of heat by Decrescence weak, therefore, in order to guarantee that condenser normally exchanges heat, then making variable frequency pump, raising frequency is run under high frequency mode, gradually to add Its strong facilitation for circulating generation to water in the first heat exchange branch, makes to flow through condenser in the first heat exchange branch The flow of water becomes larger.Wherein, set temperature is the temperature of the water after the completion of the heating that sets according to the demand for heat of water.Example Such as, the water for being 50 DEG C if necessary to maximum temperature, then its temperature parameter in cyclic process of the water in the first heat exchange branch rises The switching demand of heat exchange branch is just had to 50 DEG C, 50 DEG C are then set temperature at this time.

Further, in the case of raising frequency is run variable frequency pump under high frequency mode, control method of the invention is also wrapped It includes:

If variable frequency pump raising frequency makes heat-exchanging water routing the first heat exchange branch switch to the second heat exchange to maximum operation frequency Branch, while variable frequency pump being made to switch to low frequency mode operation by high frequency mode.

In above-mentioned steps, if variable frequency pump raising frequency shows variable frequency pump to water in the first heat exchange to maximum operation frequency The facilitation for circulating generation in branch has reached most by force, and the flow for flowing through the water of condenser has reached maximum.This When, for the temperature of the water in the first heat exchange branch also in soaring state, the exchange capability of heat of the first heat exchange branch can be in variable frequency pump Operation power gradually weakens in the case of having reached the maximum.In order to guarantee the normal heat exchange of condenser, then need to make the water route that exchanges heat Second heat exchange branch is switched to by the first heat exchange branch, while variable frequency pump being made to switch to low frequency mode operation by high frequency mode, with Just match with water temperature is constant, exchange capability of heat is stable the second heat exchange branch.

It is above-mentioned " according to present branch operating condition, to determine the frequency mould of variable frequency pump in alternatively possible embodiment The step of formula " further include:

If the temperature parameter of the water in the first heat exchange water route is equal to set temperature, make heat-exchanging water routing the first heat exchange branch Road switches to the second heat exchange branch, while runs variable frequency pump with low frequency mode.

When the first heat exchange branch exchanges heat to condenser, if the temperature parameter of the water in the first heat exchange branch is equal to Set temperature then shows that the hot water heating to exchange heat in water route finishes.At this time, it may be necessary to which the branch to exchange heat with condenser is switched To the second heat exchange branch, so that the first heat exchange branch is out of service, so that the water energy in the first heat exchange branch be made enough to flow into water storage Device is kept the temperature.In the case of the branch that exchanges heat is switched to the second heat exchange branch, water is supplied in one end of the second heat exchange branch, Water in branch flows through after condenser is exchanged heat from the discharge ends outflow of the second heat exchange branch.That is, the second heat exchange Water in branch is not to circulate, and the initial temperature for flowing through the water of condenser is always to supply the temperature of water, and second changes The exchange capability of heat of hot branch is more stable.At this point, running variable frequency pump with low frequency mode, so as in the heat exchange need for meeting condenser The supply energy source (such as electric energy) of variable frequency pump is saved while asking.

It is above-mentioned " according to present branch operating condition, determining the running frequency of variable frequency pump " in the case of another is possible The step of include:

If the water route that exchanges heat runs variable frequency pump with low frequency mode with the second heat exchange branch operation.

In above-mentioned steps, finishes, becomes in the case of user does not have hot water supply requirement, or hot water is heated In the case of frequency air conditioner has switched heat exchange branch before last time end of run, when variable frequency pump brings into operation, exchange heat branch It may be directly with the second heat exchange branch operation.At this point, running variable frequency pump with the low frequency mode to match with the second heat exchange branch .

In a preferred embodiment, control method of the invention specifically includes the following steps:

In the case of variable frequency pump brings into operation, the valve opening and closing information of valve member is obtained；

According to valve opening and closing information, the present branch operating condition in heat exchange water route is determined；

In the case of the water route that exchanges heat is with the first heat exchange branch operation, the temperature ginseng of the water in the first heat exchange branch is obtained Number；

If temperature parameter increase and raised temperature parameter be less than set temperature, make variable frequency pump under high frequency mode with The operation of first raising frequency rate raising frequency；

Under high frequency mode in the case of raising frequency operation, if variable frequency pump raising frequency makes heat-exchanging water to maximum operation frequency Routing the first heat exchange branch switches to the second heat exchange branch, while variable frequency pump being made to switch to low frequency mode operation by high frequency mode；

If the temperature parameter of the water in the first heat exchange water route is equal to set temperature, make heat-exchanging water routing the first heat exchange branch Road switches to the second heat exchange branch, while runs variable frequency pump with low frequency mode；

In the case of the water route that exchanges heat is with the second heat exchange branch operation, run variable frequency pump with low frequency mode；

In the case of determining the frequency mode of variable frequency pump, the frequency mode of variable frequency pump is obtained；

Obtain the frequency situation of change of compressor；

If variable frequency pump with the operation of the first raising frequency rate raising frequency and compressor frequency reducing operation, makes to become under high frequency mode After frequency pump runs the first preset time with present operating frequency, then it is reduced to the first setpoint frequency and with the second raising frequency rate raising frequency Operation, wherein the first raising frequency rate is greater than the second raising frequency rate；

If variable frequency pump is run under low frequency mode and compressor frequency reducing is run, make variable frequency pump with present operating frequency After running the second preset time, then the second setpoint frequency is reduced to run.

It is the first operation curve figure (dotted line in figure of the control method of transducer air conditioning of the invention referring again to Fig. 2, Fig. 2 For the T/F change curve of variable frequency pump, solid line is the T/F change curve of compressor).As shown in Fig. 2, in this hair In a kind of bright possible embodiment, the operational process of the variable frequency pump of transducer air conditioning of the invention is as follows:

In the case of transducer air conditioning brings into operation, compressor starts work, start variable frequency pump after a period of time Operation utilizes the water absorptive condenser of condenser locations close in the hot branch when not flowing so as to the water in the branch that exchanges heat Heat saves the energy；After variable frequency pump brings into operation, variable frequency pump is last when rapid raising frequency to transducer air conditioning last time is run Operation phase highest frequency achieved；The valve opening and closing information for obtaining valve member is changed by the determination of valve opening and closing information When hot water road is not up to set temperature with the water of the first heat exchange branch operation and the first heat exchange branch, make variable frequency pump in high frequency mode Under with the first raising frequency rate start raising frequency operation；When temperature reaches temperature set by user indoors, transducer air conditioning is with low frequency Mode operation, compressor frequency reducing operation make variable frequency pump first run the first preset time with present operating frequency in this case (the horizontal segment i.e. since the m point position in Fig. 2；First preset time can be 2min), then it is reduced to the first setpoint frequency Afterwards with the operation of the second raising frequency rate raising frequency；In the raising frequency operational process of variable frequency pump, the water in the first heat exchange branch reaches setting Temperature or the running frequency of variable frequency pump reach maximum (i.e. n point position in Fig. 2), and heat exchange water route switches to the second heat exchange branch Road transport row, variable frequency pump switch to low frequency mode, under low frequency mode with lower, fixed working frequency operation, until frequency conversion Air conditioner is closed.

It is the first operation curve figure (dotted line in figure of the control method of transducer air conditioning of the invention referring again to Fig. 3, Fig. 3 For the T/F change curve of variable frequency pump, solid line is the T/F change curve of compressor).As shown in figure 3, in this hair In bright alternatively possible embodiment, the operational process of the variable frequency pump of transducer air conditioning of the invention is as follows:

In the case of transducer air conditioning brings into operation, compressor starts work, start variable frequency pump after a period of time Operation utilizes the water absorptive condenser of condenser locations close in the hot branch when not flowing so as to the water in the branch that exchanges heat Heat saves the energy；After variable frequency pump brings into operation, variable frequency pump is last when rapid raising frequency to transducer air conditioning last time is run Operation phase highest frequency achieved；The valve opening and closing information for obtaining valve member is changed by the determination of valve opening and closing information When hot water road is not up to set temperature with the water of the first heat exchange branch operation and the first heat exchange branch, make variable frequency pump in high frequency mode Under with the first raising frequency rate start raising frequency operation；In the raising frequency operational process of variable frequency pump, the water in the first heat exchange branch reaches Set temperature or the running frequency of variable frequency pump reach maximum (i.e. p point position in Fig. 2), and heat exchange water route switches to second and changes Hot branch operation, variable frequency pump switch to low frequency mode, under low frequency mode with lower, fixed working frequency operation；In room When interior temperature reaches temperature set by user, transducer air conditioning is run with low frequency mode, compressor frequency reducing operation, in this respect Under, so that variable frequency pump is first run the second preset time (horizontal segment i.e. since the q point position in Fig. 2 with present operating frequency；The Two preset times can be 2min), then the second setpoint frequency is reduced to run, until transducer air conditioning is closed.

In conclusion the control method of transducer air conditioning of the invention can be true by the valve opening and closing information of valve member Surely the present branch operating condition in heat exchange water route.According to different branch operating condition, the running frequency of variable frequency pump is carried out true It is fixed.By the converting operation of variable frequency pump, the different operating conditions of heat exchange branch are realized to cold when can run for air conditioner The heat exchange of condenser, in the basic operation demand and hot water heating demand for meeting air conditioner of the invention, to realize Waste Heat Recovery While further promote the energy-saving effect of the air conditioner.On this basis, control method of the invention can also be according to frequency conversion The current frequency mode of pump and the frequency situation of change of compressor, determine whether variable frequency pump needs frequency reducing, and need in variable frequency pump In the case of wanting frequency reducing, corresponding frequency reducing scheme is executed for the different frequency mode of variable frequency pump, thus the energy conservation to air conditioner Effect optimizes promotion again.

So far, it has been combined preferred embodiment shown in the drawings and describes technical solution of the present invention, still, this field Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific embodiments.Without departing from this Under the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these Technical solution after change or replacement will fall within the scope of protection of the present invention.