CN211575339U - Frequency conversion multi-connected floor heating air duct machine dehumidification cooling automatic switching system - Google Patents

Frequency conversion multi-connected floor heating air duct machine dehumidification cooling automatic switching system Download PDF

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Publication number
CN211575339U
CN211575339U CN201922269136.3U CN201922269136U CN211575339U CN 211575339 U CN211575339 U CN 211575339U CN 201922269136 U CN201922269136 U CN 201922269136U CN 211575339 U CN211575339 U CN 211575339U
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Prior art keywords
cooling
heating
pipe
unit
controller
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陈小爽
陈万仁
段建磊
杨凯
许娇娇
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Zhengzhou Ruibang Precision Machinery Manufacturing Co ltd
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Zhengzhou Ruibang Precision Machinery Manufacturing Co ltd
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Abstract

The utility model provides a frequency conversion multiplex floor heating tuber pipe machine dehumidification cooling automatic switching system for solve that air conditioner unit power is less, can't satisfy individual room temperature individualized demand, system operating condition unstability and can not be fine solution with the floor directly expand the multiunit coexistence scheduling problem when refrigeration heating system is supporting. The utility model discloses a compressor arrangement, heat transfer device, throttling arrangement and cooling heating device, cooling heating device includes cooling dehumidification unit and heating unit, and the master control board is connected with branch controller, divide the controller to be connected with temperature-sensing probe I, humidity inductive probe and temperature-sensing probe II. The utility model discloses can provide different energy supply, a host computer according to the different demands in single room and can satisfy the demand that a plurality of rooms heated and cooled simultaneously, satisfy energy supply and energy-concerving and environment-protective.

Description

Frequency conversion multi-connected floor heating air duct machine dehumidification cooling automatic switching system
Technical Field
The utility model relates to an indoor cooling heating technical field, concretely relates to frequency conversion multi-connected floor heating tuber pipe machine dehumidification cooling automatic switching system.
Background
At present, with the rapid development of technological innovation and manufacturing technology, a digital scroll compressor and a two-stage compression compressor are introduced in the field of heat pump compressors, so that a heat pump system can stably operate at an outdoor temperature of below-30 ℃, has high operation energy efficiency ratio and operation stability, and opens up a new way for the use of a wind source heat pump in the field of heating. In the patents with application numbers ZL 200820071027. x, ZL201010502398.0, ZL201220275353.9, ZL201220275358.1 and ZL200820071026.5, intensive research is carried out on phase change radiation heating and the like, and although corresponding system results are obtained, cooling and heating operation is energy-saving and stable, an outdoor unit is an air conditioning system with fixed frequency, single machine power is low, and when heating and cooling are to be achieved in a room with a plurality of units, several air conditioners are required to be coordinated together to complete the heating and cooling. With the changing of the demand and the changing of the style and appearance requirements of buildings, owners or building units do not allow a plurality of outdoor units to be hung on the outer vertical surfaces, and the demand can be solved by adopting a variable-frequency multi-connected large-scale host system. The traditional fixed-frequency heat pump host cannot meet individual requirements of a plurality of spaces, and the direct expansion cooling or heating of the floor cannot be divided into a plurality of units, so that the individual requirements of single room for comfortable temperature cannot be met; and the large-scale ducted air conditioner system has complex pipeline installation and high installation cost, the air supply or return air volume is greatly influenced when the conveying distance is longer, the cold quantity or heat quantity of the heat exchanger connected with the main machine can not be discharged in time, bad phenomena such as icing and the like are caused, and the working state of the system is unstable. At present, a dehumidification unit matched with a floor phase-change radiation refrigeration and heating system is not mature, and if a fixed-frequency unit or a variable-frequency unit needs to supply a circulating medium to a radiation heating, cooling and heat exchange system of a floor or a wallboard and simultaneously needs to be divided into a plurality of units for respective supply, the supply is difficult to realize at present. The cold and hot fan units of the variable-frequency air source heat pump are mature, a variable-frequency multi-connected system adaptive to floor direct-expansion heating and cooling needs to be developed urgently, and the problem that multiple units coexist when the current unit or system is matched with a floor direct-expansion cooling and heating system cannot be solved well.
SUMMERY OF THE UTILITY MODEL
The utility model discloses less to air conditioner unit power, can't satisfy the individualized demand of single room temperature, system operating condition is unstable and can not be fine solution with the floor directly expand the coexistence scheduling problem of the multiunit when refrigerating and heating system is supporting, a frequency conversion multiplex floor heating tuber pipe machine dehumidification cooling automatic switching system is provided, can provide different energy supply according to the different demands in single room, a host computer can satisfy the demand that a plurality of rooms heated and cooled simultaneously, satisfy energy supply and energy-concerving and environment-protective.
In order to solve the technical problem, the utility model discloses a following technical scheme: a dehumidification and cooling automatic conversion system of a frequency conversion multi-connected floor heating air duct machine comprises a compression device, a heat exchange device, a throttling device and a cooling and heating device, the compression device, the heat exchange device, the throttling device and the cooling and heating device are sequentially connected in series, wherein the compression device, the heat exchange device and the throttling device are all arranged in the outdoor host machine, the cold and heat supply device is arranged in the room, the cooling and heating device comprises a cooling and dehumidifying unit and a heating unit which are arranged in series, the cooling and dehumidifying unit is connected with the throttling device, the heating unit is connected with the compression device, the heat exchange device and the throttling device are all connected with the controller, the controller is connected with a temperature sensing probe I for detecting indoor temperature, a humidity sensing probe for detecting indoor humidity and a temperature sensing probe II for detecting floor temperature.
The compression device comprises a compressor, the compressor is respectively connected with a four-way valve and a liquid storage tank, the four-way valve is connected with the liquid storage tank, the four-way valve is connected with a heat exchange device, the four-way valve is connected with a heating unit through a liquid supply pipe, and the compressor and the four-way valve are both connected with a controller.
The heat exchange device comprises a heat exchanger I and a fan I matched with the heat exchanger I, the fan I is connected with the controller, and the heat exchanger I is respectively connected with the four-way valve and the throttling device; the throttling device comprises an electronic expansion valve I, the electronic expansion valve I is connected with the heat exchanger I, the electronic expansion valve I is connected with the cooling and dehumidifying unit through a liquid return pipe, and the electronic expansion valve I is connected with the controller.
The cooling and dehumidifying unit comprises an indoor air duct machine, a heat exchanger II and a fan II matched with the heat exchanger II are arranged in the indoor air duct machine, the fan II is connected with the controller, and the heat exchanger II is respectively connected with the liquid return pipe and the heating unit; the front part, the middle part and the rear part of the fluorine pipe pipeline at one end of the heat exchanger II connected with the liquid return pipe are respectively provided with a temperature sensing probe III, and the temperature sensing probes III are connected with the controller.
The controller includes main control panel and branch controller, and divides the controller to be connected with the main control panel, and the main control panel is installed in the casing inboard of outdoor host computer, divides the controller to install in the casing inboard of indoor tuber pipe machine, compressor, cross valve, fan I and electronic expansion valve I all are connected with the main control panel, and temperature sensing probe I, humidity inductive probe, temperature sensing probe II, temperature sensing probe III and fan II all are connected with branch controller.
A filter is arranged between the four-way valve and the liquid supply pipe, a stop valve I is arranged on the liquid return pipe, a stop valve II is arranged on the liquid supply pipe, and the stop valve II is positioned between the filter and the heating unit; an electronic expansion valve II is arranged between the liquid return pipe and the heat exchanger II and is connected with the sub-controllers; the heat preservation cotton is wrapped on the outer portions of pipelines connected among the heat exchanger I, the compressor, the electronic expansion valve I, the stop valve I and the stop valve II and the outer portions of the electronic expansion valve I and the electronic expansion valve II.
The heating unit is connected with the liquid supply pipe through a three-way pipe II and connected with the heat exchanger II through a three-way pipe I; a main trunk of the three-way pipe I is connected with the heat exchanger II through a connecting pipe, one branch of the three-way pipe I is connected with the heating unit, and the other branch of the three-way pipe I is connected with an inlet of the one-way valve II; the main part of the three-way pipe II is connected with the liquid supply pipe, one branch of the three-way pipe II is connected with the heating unit through the one-way valve I, and the other branch of the three-way pipe II is connected with the outlet of the one-way valve II.
The heating unit comprises an underground coil pipe, wherein the inlet end of the underground coil pipe is connected with one branch of the three-way pipe II, and the outlet end of the underground coil pipe is connected with one branch of the three-way pipe I.
The cooling and heating device is at least provided with two sets of and in proper order parallel connection, and every group cooling and heating device includes cooling dehumidification unit and heating unit, cooling dehumidification unit and heating unit series connection, the heating unit includes 1 ground and buries the coil pipe, and an entrance point is connected with a branch road of three-way pipe II, the exit end is connected with a branch road of three-way pipe I.
The cooling and heating device is at least provided with two sets and is connected in parallel in proper order, and every group cooling and heating device includes cooling dehumidification unit and heating unit, cooling dehumidification unit and heating unit series connection, the heating unit includes 2 and buries coil pipe, and parallel connection, 2 bury the entrance point of coil pipe and all be connected with a branch road of three-way pipe II, the exit end all is connected with a branch road of three-way pipe I.
The utility model with the structure can supply circulating medium to the working medium direct-supply radiant heating and cooling heat exchange system of the floor or the wall board, and can respectively supply heat, refrigerate, dehumidify and the like to a plurality of units; the system can provide different energy supplies according to different requirements of a single room, and one host can meet the requirements of simultaneously heating and cooling a plurality of rooms; the utility model discloses installation convenient to use, working property are stable, input power is little, efficiency relative altitude, energy-concerving and environment-protective and the noise is low, have very strong practicality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 3 of the present invention.
In the figure, 1 is an outdoor host computer, 2 is a heat exchanger I, 4 is a compressor, 5 is a four-way valve, 6 is a main control panel, 8 is a fan I, 9 is a liquid return pipe, 10 is a liquid supply pipe, 11 is an electronic expansion valve II, 16 is a branch controller, 17 is an indoor air pipe machine, 18 is a heat exchanger II, 19 is a fan II, 22 is a temperature sensing probe II, 23 is a check valve I, 24 is a check valve II, 25 is a temperature sensing probe I, 26 is a humidity sensing probe, 27 is a temperature sensing probe III, 40 is a buried coil pipe, 61 is a liquid storage tank, 62 is a filter, 63 is a stop valve I, 64 is a stop valve II, 70 is an electronic expansion valve I, 94 is a three-way pipe I, and 95 is a three-way pipe II.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
Example 1
As shown in figure 1, the utility model provides a frequency conversion multi-connected floor heating ducted type dehumidification cooling automatic switching system, which comprises a compression device, a heat exchange device, a throttling device and a cooling and heating device, wherein the compression device, the heat exchange device and the throttling device are all arranged in an outdoor host 1, the cooling and heating device is arranged indoors, the compression device, the heat exchange device, the throttling device and the cooling and heating device are sequentially connected in series, the cooling and heating device comprises a cooling and dehumidification unit and a heating unit, the cooling and dehumidification unit and the heating unit are arranged in series, the cooling and dehumidification unit is connected with the throttling device, the heating unit is connected with the compression device, thereby realizing the heating or cooling treatment of the floor by the working medium direct supply floor (wall plate and floor) heat exchange system, and the ducted type heating device carries out the treatments of filtering, dehumidifying, cooling, heating and the like to the indoor circulating air, the cooling, heating and dehumidifying requirements of an indoor system are met.
The compression device, the heat exchange device and the throttling device are all connected with a controller, the controller is connected with a temperature sensing probe I25 for detecting indoor temperature, a humidity sensing probe 26 for detecting indoor humidity and a temperature sensing probe II 22 for detecting floor temperature, concretely, the controller comprises a main control board 6 and a sub-controller 16, the sub-controller 16 is connected with the main control board 6, the main control board 6 is installed on the inner side of the shell of the outdoor host 1, the compression device, the heat exchange device and the throttling device are all connected with the main control board 6, the temperature sensing probe I22, the temperature sensing probe II 25 and the humidity sensing probe 26 are all connected with the sub-controller 16, the sub-controller 16 is used for receiving information detected by the temperature sensing probe I22, the temperature sensing probe II 25 and the humidity sensing probe 26, and the main control board 6 is used for controlling the working states of the compression device, the heat exchange device and the throttling device. The sub-controller 16 is connected with the control device in a wired or wireless mode, the sub-controller 16 can be used for controlling indoor temperature parameters, a startup and shutdown state, function selection and the like, meanwhile, the sub-controller 16 can also feed back information detected by the temperature sensing probe I22, the temperature sensing probe II 25 and the humidity sensing probe 26 to the control device for a user to check, the user can also send an instruction to the sub-controller 16 through the control device to complete setting of related parameters, meanwhile, the sub-controller 16 transmits the information to the main control board 6 after receiving the instruction, and the main control board 6 controls the compression device, the heat exchange device and the throttling device to work, so that mutual conversion of refrigeration and heating and automatic adjustment or change of the supply state of energy are realized. The inside of the shell of the outdoor host 1 is also provided with a power supply, the compression device, the heat exchange device, the throttling device, the main control panel 6 and the sub-controller 16 are all connected with the power supply, and the power supply supplies power to the compression device, the heat exchange device, the throttling device, the main control panel 6 and the sub-controller 16 in the power-on state.
The compression device comprises a compressor 4, the compressor 4 is respectively connected with a four-way valve 5 and a liquid storage tank 61, the four-way valve 5 is connected with the liquid storage tank 61, the compressor 4 and the four-way valve 5 are both connected with a main control panel 6, and the main control panel 6 controls the compressor 4 and the four-way valve 5 to work, so that the interconversion between the refrigeration and the heating is realized. The four-way valve 5 is connected with a heat exchange device, the four-way valve 5 is connected with a heating unit through a liquid supply pipe 10, specifically, the heat exchange device comprises a heat exchanger I2 and a fan I8 matched with the heat exchanger I2, the fan I8 is connected with a main control panel 6, and the fan I8 is favorable for promoting the heat exchange process of the heat exchanger I2, so that the indoor air continuously circularly flows to achieve the purpose of heating. The heat exchanger I2 is connected with a four-way valve 5, so that the interconversion between refrigeration and heating is realized; the liquid storage tank 61 is used for storing the condensate of the heat exchanger I2, and the condensate is prevented from being accumulated in the heat exchanger I2 too much to reduce the heat transfer area and influence the heat transfer effect of the heat exchanger I2. The heat exchanger I2 is connected with a throttling device, the throttling device comprises an electronic expansion valve I70, the electronic expansion valve I70 is connected with the heat exchanger I2, the electronic expansion valve I70 is connected with a cooling and dehumidifying unit through a liquid return pipe 9, the electronic expansion valve I70 is connected with a main control board 6, the electronic expansion valve I70 can timely adjust the flow of refrigerant in the heat exchanger I2 under the control of the main control board 6, and the target superheat degree is controlled, so that the compressor 4 is prevented from being damaged along with liquid impact when the compressor 4 sucks air, and the service life of the compressor 4 and the stable operation of the whole system are ensured. The cooling and dehumidifying unit includes an indoor air duct machine 17, and the sub-controller 16 is installed inside a casing of the indoor air duct machine 17. The indoor air pipe machine 17 is internally provided with a heat exchanger II 18 and a fan II 19 matched with the heat exchanger II 18, the fan II 19 is connected with the branch controller 16, and the fan II 19 is favorable for promoting the heat exchange process of the heat exchanger II 18, so that indoor air continuously circulates and flows, and the purpose of heating is achieved. And the heat exchanger II 18 is respectively connected with the liquid return pipe 9 and the heating unit to realize interconversion of refrigeration or heating. Preferably, the front part, the middle part and the rear part of the fluorine pipe pipeline at one end of the heat exchanger II 18 connected with the liquid return pipe 9 are respectively provided with a temperature sensing probe III 27, the temperature sensing probe III 27 is connected with the sub-controller 16, the temperature sensing probe III 27 is used for sensing the temperature of a refrigerant in the fluorine pipe of the heat exchanger II 18 and transmitting the detection information to the sub-controller 16, and the sub-controller 16 adjusts and sets the relevant parameters according to the detected temperature information.
A filter 62 is arranged between the four-way valve 5 and the liquid supply pipe 10, and the filter 62 can filter impurities in a pipeline of the refrigeration system, and can be used for storing and supplying liquid refrigerant in the refrigeration system, and compensating and adjusting the profit and loss of the liquid refrigerant in time. The liquid return pipe 9 is provided with a stop valve I63, the liquid supply pipe 10 is provided with a stop valve II 64, the stop valve II 64 is positioned between the filter 62 and the heating unit, and the stop valve I63 and the stop valve II 64 are respectively used for controlling the flow direction of refrigerant in the outdoor unit so as to prevent the refrigerant from flowing back or running off. An electronic expansion valve II 11 is arranged between the liquid return pipe 9 and the heat exchanger II 18, the electronic expansion valve II 11 is connected with a sub-controller 16, the electronic expansion valve II 11 is used as a control switch to control the liquid flow, and the sub-controller 16 controls the execution, so that the automatic adjustment of energy supply is realized, and the stable operation of the whole system is ensured. Preferably, the heat preservation cotton is wrapped up to the outside of the pipeline that connects between heat exchanger I2, compressor 4, electronic expansion valve I70, stop valve I63 and the stop valve II 64 and the outside of electronic expansion valve I70 and electronic expansion valve II 11, and the heat preservation cotton is used for preventing the temperature loss and the copper pipe is ageing, if the heat preservation cotton drops in a large number, the copper pipe will be exposed outside for a long time, causes the oxidation to turn black and reduce life, can influence the result of use of air conditioner simultaneously.
The heating unit is connected with the liquid supply pipe 10 through a three-way pipe II 95 and connected with the heat exchanger II 18 through a three-way pipe I94, and specifically, the heating unit comprises a buried coil pipe 40, the inlet end of the buried coil pipe 40 is connected with one branch of the three-way pipe II 95, and the outlet end of the buried coil pipe is connected with one branch of the three-way pipe I94, so that heating liquid can uniformly and stably flow in a circulating manner, and uniform floor heating is realized. Specifically, the main trunk of the three-way pipe I94 is connected with the heat exchanger II 18 through a connecting pipe, one branch of the three-way pipe I94 is connected with the heating unit, and the other branch of the three-way pipe I94 is connected with the inlet of the one-way valve II 24; the main part of three-way pipe II 95 is connected with liquid feed pipe 10, and a branch road of three-way pipe II 95 is connected with the heating unit through check valve I23, another branch road and the exit linkage of check valve II 24, and check valve I23 and check valve II 24 all are used for controlling the liquid flow to, make liquid can evenly stably circulate to it is even to realize floor heating.
Example 2
The utility model provides a frequency conversion multiplex floor heating tuber pipe machine dehumidification cooling automatic switching system, as shown in FIG. 2, this embodiment and embodiment 1's difference lie in, cooling heating device is provided with two sets of at least, and parallel connection in proper order, and every group cooling heating device can set up respectively in a plurality of rooms, satisfies the individualized demand of the temperature in single room. Every group cooling heating device includes cooling dehumidification unit and heating unit, and cooling dehumidification unit and heating unit series connection, every group heating unit include 1 and bury coil pipe 40, and bury coil pipe 40 respectively and be connected with feed pipe 10 and heat exchanger II 18 respectively through a plurality of three-way pipes to realize indoor heating, refrigeration, dehumidification etc. satisfy user's user demand.
Other structures and operation principles are the same as those of embodiment 1, and are not described herein again.
Example 3
The utility model provides a frequency conversion multiplex floor heating tuber pipe machine dehumidification cooling automatic switching system, as shown in fig. 3, this embodiment and embodiment 1 and embodiment 2's difference lie in, the cooling heating device is provided with at least two sets ofly, and connects in parallel in proper order and set up, and every group cooling heating device is including cooling dehumidification unit and heating unit, and every group cooling heating device can set up respectively in a plurality of rooms, satisfies the individualized demand of the temperature in single room. Compared with the embodiment 2, the heating units in the embodiment comprise 2 underground coil pipes 40 which are sequentially connected in parallel, connection between the underground coil pipes 40 and the heat exchanger II 18 is achieved through a plurality of three-way pipes, so that indoor heating, refrigeration, dehumidification and the like are achieved, and each group of heating units effectively increase the heating area and meet the use requirements of users by arranging 2 underground coil pipes 40.
Other structures and operation principles are the same as those of embodiment 1, and are not described herein again.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a frequency conversion multiplex floor heating tuber pipe machine dehumidification cooling automatic switching system which characterized in that: including compressor arrangement, heat transfer device, throttling arrangement and cooling heating device, compressor arrangement, heat transfer device, throttling arrangement and cooling heating device are series connection in proper order, and wherein compressor arrangement, heat transfer device and throttling arrangement all set up in outdoor host computer (1), and the cooling heating device sets up indoor, cooling heating device is including cooling dehumidification unit and heating unit, and cooling dehumidification unit and heating unit series connection set up, and cooling dehumidification unit are connected with throttling arrangement, and the heating unit is connected with compressor arrangement, heat transfer device and throttling arrangement all connection director, the controller is connected with temperature sensing probe I (25) that are used for detecting indoor temperature, humidity inductive probe (26) that are used for detecting indoor humidity and temperature sensing probe II (22) that are used for detecting floor temperature.
2. The frequency conversion multi-gang floor heating air duct machine dehumidification cooling automatic switching system of claim 1, characterized in that: the compressor comprises a compressor (4), the compressor (4) is respectively connected with a four-way valve (5) and a liquid storage tank (61), the four-way valve (5) is connected with the liquid storage tank (61), the four-way valve (5) is connected with a heat exchange device, the four-way valve (5) is connected with a heating unit through a liquid supply pipe (10), and the compressor (4) and the four-way valve (5) are both connected with a controller.
3. The frequency conversion multi-gang floor heating air duct machine dehumidification cooling automatic switching system of claim 2, characterized in that: the heat exchange device comprises a heat exchanger I (2) and a fan I (8) matched with the heat exchanger I (2), the fan I (8) is connected with the controller, and the heat exchanger I (2) is respectively connected with a four-way valve (5) and a throttling device; the throttling device comprises an electronic expansion valve I (70), the electronic expansion valve I (70) is connected with the heat exchanger I (2), the electronic expansion valve I (70) is connected with the cooling and dehumidifying unit through a liquid return pipe (9), and the electronic expansion valve I (70) is connected with the controller.
4. The frequency conversion multi-gang floor heating air duct machine dehumidification cooling automatic switching system of claim 3, characterized in that: the cooling and dehumidifying unit comprises an indoor air duct machine (17), a heat exchanger II (18) and a fan II (19) matched with the heat exchanger II (18) are arranged in the indoor air duct machine (17), the fan II (19) is connected with the controller, and the heat exchanger II (18) is respectively connected with the liquid return pipe (9) and the heating unit; the front part, the middle part and the rear part of the fluorine pipe pipeline at one end of the heat exchanger II (18) connected with the liquid return pipe (9) are respectively provided with a temperature sensing probe III (27), and the temperature sensing probes III (27) are connected with the controller.
5. The frequency conversion multi-gang floor heating air duct machine dehumidification cooling automatic switching system of claim 4, characterized in that: the controller includes main control panel (6) and branch controller (16), and divides controller (16) to be connected with main control panel (6), and main control panel (6) are installed in the casing inboard of outdoor host computer (1), divide controller (16) to install in the casing inboard of indoor tuber pipe machine (17), compressor (4), cross valve (5), fan I (8) and electronic expansion valve I (70) all are connected with main control panel (6), and temperature sensing probe I (25), humidity inductive probe (26), temperature sensing probe II (22), temperature sensing probe III (27) and fan II (19) all are connected with branch controller (16).
6. The frequency conversion multi-gang floor heating air duct machine dehumidification cooling automatic switching system of claim 5, characterized in that: a filter (62) is arranged between the four-way valve (5) and the liquid supply pipe (10), a stop valve I (63) is arranged on the liquid return pipe (9), a stop valve II (64) is arranged on the liquid supply pipe (10), and the stop valve II (64) is positioned between the filter (62) and the heating unit; an electronic expansion valve II (11) is arranged between the liquid return pipe (9) and the heat exchanger II (18), and the electronic expansion valve II (11) is connected with the branch controller (16); the heat-preservation cotton is wrapped on the outer portions of pipelines connected among the heat exchanger I (2), the compressor (4), the electronic expansion valve I (70), the stop valve I (63) and the stop valve II (64) and on the outer portions of the electronic expansion valve I (70) and the electronic expansion valve II (11).
7. The frequency conversion multi-gang floor heating air duct machine dehumidification cooling automatic switching system of claim 6, characterized in that: the heating unit is connected with the liquid supply pipe (10) through a three-way pipe II (95) and connected with the heat exchanger II (18) through a three-way pipe I (94); a main trunk of the three-way pipe I (94) is connected with the heat exchanger II (18) through a connecting pipe, one branch of the three-way pipe I (94) is connected with the heating unit, and the other branch of the three-way pipe I (94) is connected with an inlet of the one-way valve II (24); the main part of the three-way pipe II (95) is connected with the liquid supply pipe (10), one branch of the three-way pipe II (95) is connected with the heating unit through the one-way valve I (23), and the other branch is connected with the outlet of the one-way valve II (24).
8. The frequency conversion multi-gang floor heating air duct machine dehumidification cooling automatic switching system of claim 7, characterized in that: the heating unit comprises an underground coil pipe (40), wherein the inlet end of the underground coil pipe (40) is connected with one branch of the three-way pipe II (95), and the outlet end of the underground coil pipe is connected with one branch of the three-way pipe I (94).
9. The frequency conversion multi-gang floor heating air duct machine dehumidification cooling automatic switching system of claim 7, characterized in that: the cooling and heating device is at least provided with two sets and is connected in parallel in proper order, and every group cooling and heating device includes cooling dehumidification unit and heating unit, cooling dehumidification unit and heating unit series connection, the heating unit includes 1 and buries coil pipe (40) and entrance point and is connected with a branch road of three-way pipe II (95), exit end and branch road of three-way pipe I (94) are connected.
10. The frequency conversion multi-gang floor heating air duct machine dehumidification cooling automatic switching system of claim 7, characterized in that: the cooling and heating device is at least provided with two sets and is connected in parallel in proper order, and every group cooling and heating device includes cooling dehumidification unit and heating unit, cooling dehumidification unit and heating unit series connection, the heating unit includes 2 and buries coil pipe (40) and parallel connection, 2 bury the entrance point of coil pipe (40) and all be connected with a branch road of three-way pipe II (95), the exit end all is connected with a branch road of three-way pipe I (94).
CN201922269136.3U 2019-12-17 2019-12-17 Frequency conversion multi-connected floor heating air duct machine dehumidification cooling automatic switching system Active CN211575339U (en)

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Application Number Priority Date Filing Date Title
CN201922269136.3U CN211575339U (en) 2019-12-17 2019-12-17 Frequency conversion multi-connected floor heating air duct machine dehumidification cooling automatic switching system

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Application Number Priority Date Filing Date Title
CN201922269136.3U CN211575339U (en) 2019-12-17 2019-12-17 Frequency conversion multi-connected floor heating air duct machine dehumidification cooling automatic switching system

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