CN117346212B - Floor heating air conditioning system and coil pipe assembly - Google Patents
Floor heating air conditioning system and coil pipe assembly Download PDFInfo
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- CN117346212B CN117346212B CN202311646845.3A CN202311646845A CN117346212B CN 117346212 B CN117346212 B CN 117346212B CN 202311646845 A CN202311646845 A CN 202311646845A CN 117346212 B CN117346212 B CN 117346212B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 35
- 238000004378 air conditioning Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 230000005489 elastic deformation Effects 0.000 claims abstract description 56
- 230000008859 change Effects 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims description 29
- 239000012530 fluid Substances 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims 1
- 230000033228 biological regulation Effects 0.000 abstract description 7
- 238000005057 refrigeration Methods 0.000 abstract description 5
- 238000009423 ventilation Methods 0.000 abstract description 2
- 230000000875 corresponding effect Effects 0.000 description 14
- 230000001105 regulatory effect Effects 0.000 description 13
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229920002457 flexible plastic Polymers 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Classifications
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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
-
- 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
- F24D15/00—Other domestic- or space-heating systems
- F24D15/04—Other domestic- or space-heating systems using heat pumps
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The application relates to the field of heating and ventilation equipment, in particular to a floor heating air conditioning system and a coil assembly. The coil pipe assembly comprises a coil pipe body and a driving unit, wherein the coil pipe body is used for introducing hot water and exchanging heat with the floor; the coil body comprises an elastic deformation unit, and the elastic deformation unit can generate corresponding deformation when the coil body is stressed and changed, so that the heat exchange area of the floor is changed; the driving unit is arranged at the coil body and used for adjusting the force applied to the coil body so as to change the heat exchange area of the coil body and the floor. The coil pipe subassembly that this application provided can change the heat transfer area with the floor, and then adjusts the heat transfer ability with the floor, reduces temperature regulation's hysteresis quality, realizes quick refrigeration or heats the purpose.
Description
Technical Field
The application relates to the field of heating and ventilation equipment, in particular to a floor heating air conditioning system and a coil assembly.
Background
The floor heating is to heat the floor by injecting low-temperature hot water into a floor heating pipe loop laid under the floor, and the heat is gently and uniformly radiated to the space above the floor by natural convection and radiation through the floor with a large area.
The floor heating air conditioning system adopts an air source heat pump to absorb low-grade heat energy in air for heating, then the heat exchanger is used for heating circulating water of the floor heating pipe to replace boiler heating, the floor heating air conditioning system is utilized for heating, and the floor radiation system is widely applied to modern buildings due to the advantages of comfort, energy saving, low noise and the like. However, the floor layer has a large thermal inertia, and thus there is a problem in that the temperature hysteresis is large when the indoor temperature is changed.
Disclosure of Invention
The utility model provides a warm air conditioning system and coil pipe subassembly, this coil pipe subassembly can adjust the heat transfer area with the floor, and then adjusts the heat transfer rate with the floor, reduces temperature regulation's hysteresis quality, realizes quick refrigeration or heats.
In a first aspect, the present application provides a coil assembly comprising:
the coil pipe body is used for introducing hot water and exchanging heat with the floor, and comprises an elastic deformation unit which generates corresponding deformation when the coil pipe body is stressed and changed so as to change the heat exchange area with the floor;
and the pressing unit is arranged at the coil body and used for adjusting the force applied to the coil body.
In some embodiments, the elastically deformable unit is an elastically deformable tube that produces elastic elongation or elastic shortening when the coil body is subjected to a change in force.
In some embodiments, the coil body further comprises non-elastically deforming units, the elastically deforming units being connected between the non-elastically deforming units.
In some embodiments, the elastically deforming units are expansion joints connected between the non-elastically deforming units, and the volume of the expansion joints changes along with the pressure changes of the coil pipe body.
In some embodiments, the coil body is a coiled pipe or a return pipe, and the driving unit is arranged at the middle section of any straight line section of the coil body in the length direction.
In some embodiments, the drive unit is any one of the following;
a mechanical pressing unit provided on at least one side of the coil body and configured to press the coil body when moving toward the coil body;
a pneumatic pressing unit;
a hydraulic pressure applying unit;
the pneumatic pressure applying unit and/or the hydraulic pressure applying unit comprises an elastic pressure applying sleeve, the elastic pressure applying sleeve is sleeved on the coil pipe body, and when the elastic pressure applying sleeve is filled with/discharged from fluid, preset deformation is generated so as to change the extrusion force acting on the coil pipe body.
In some embodiments, the system further comprises a cover plate unit, wherein the cover plate unit is used for being paved below a floor and forming a mounting channel for accommodating and protecting the coil body, and the length and the width of the mounting channel and the coil body positioned on the same straight line section are larger than those of the coil body.
In some embodiments, a pressure sensing unit is disposed within the coil body.
In some embodiments, the water inlet of the coil body is provided with a first regulating valve and/or the water outlet of the coil body is provided with a second regulating valve.
In a second aspect, the present application provides a floor heating air conditioning system, including heat pump unit, heat exchanger and any one of the above coil pipe assemblies, the heat exchanger is equipped with and is used for letting in heat exchange fluid's first side and second side respectively, the heat pump unit with the first side of heat exchanger concatenates and forms first return circuit, the coil pipe assembly with the second side of heat exchanger concatenates and forms the second return circuit, first return circuit with the second return circuit passes through the heat exchanger heat exchange connection.
In some embodiments, the water inlet of the coil body is provided with a first temperature sensor and the water outlet of the coil body is provided with a second temperature sensor.
In some embodiments, a third temperature sensor for detecting the indoor temperature is also included.
In some embodiments, the heat pump unit is provided with a controller, and the first temperature sensor, the second temperature sensor, the third temperature sensor, and the driving unit are all electrically connected with the controller.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: when needs are adjusted indoor temperature, take the indoor temperature that needs to rise under the heating mode to illustrate as the example, apply certain pressure to the coil pipe body through drive unit, extrude the coil pipe body and make the elastic deformation unit of coil pipe body produce incremental deformation like the length increase or the width increase of elastic deformation unit or length and width increase simultaneously, increase the heat transfer area of coil pipe body and floor, promote the heat transfer rate of coil pipe body and floor, and then reach the purpose that makes indoor temperature rise fast.
Correspondingly, when the indoor temperature needs to be reduced in the heating mode, the pressure of the driving unit acting on the coil pipe body is reduced, so that the surface area of the elastic deformation unit is reduced, the heat exchange area and the heat exchange rate of the coil pipe body and the floor are reduced, and the aim of rapidly reducing the indoor temperature is fulfilled. The coil pipe assembly changes the heat exchange area and the heat exchange rate with the floor through the elastic deformation unit, thereby obviously reducing the hysteresis quality of temperature adjustment of the coil pipe assembly and realizing the purpose of quickly adjusting the room temperature.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.
FIG. 1 is a schematic illustration of a coil assembly provided in one embodiment of the present application;
FIG. 2 is a schematic illustration of a coil assembly provided in accordance with another embodiment of the present application;
fig. 3 is a schematic diagram of a mechanical pressing unit according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of the pneumatic or hydraulic pressure applying unit according to the embodiment of the present application;
FIG. 5 is a schematic illustration of a shroud structure of a coil assembly provided in one embodiment of the present application;
FIG. 6 is a longitudinal cross-sectional view of the hood structure of FIG. 5;
FIG. 7 is a schematic illustration of a first heat exchange condition of a coil assembly according to one embodiment of the present disclosure;
FIG. 8 is a schematic view of the coil assembly of FIG. 7 in a second heat exchange configuration;
fig. 9 is a logic diagram of operation control of the floor heating air conditioning system according to an embodiment of the present application.
Reference numerals illustrate:
10-coil body; 11-an elastically deformable tube; 12-expansion joint; 13-an inelastic deformation unit; 20-a drive unit; 21-a mechanical pressing unit; 22-an elastic pressing sleeve; 30-a controller; 31-a first temperature sensor; 32-a second temperature sensor; 33-a third temperature sensor; 34-a first pressure sensor; 35-a second pressure sensor; 36-a first regulating valve; 37-a second regulating valve; 38-a circulating water pump; 40-hood plate unit.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
The following disclosure provides many different embodiments, or examples, for implementing different structures of the application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
For ease of description, spatially relative terms, such as "inner," "outer," "lower," "upper," "above," "front," "rear," and the like, may be used herein to describe one element's or feature's relative positional relationship or movement to another element's or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figure experiences a position flip or a change in attitude or a change in state of motion, then the indications of these directivities correspondingly change, for example: an element described as "under" or "beneath" another element or feature would then be oriented "over" or "above" the other element or feature. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.
In order to solve among the prior art ground heating system and floor heat transfer because the great technical problem of temperature regulation hysteresis quality that arouses of floor layer thermal inertia, this application provides a ground heating air conditioning system and coil assembly, can adjust coil assembly and floor layer's heat transfer area and heat transfer rate, reduces temperature regulation's hysteresis quality, realizes indoor temperature's quick regulation. The elastic deformation unit refers to that the elastic deformation amount and the external force show a linear relationship in the elastic deformation range of the elastic material, for example, the deformation length of the elastic deformation tube 11 has a certain linear relationship with the tensile force applied to the elastic deformation tube or the pressure in the tube. The non-elastic deformation unit 13 refers to a pipe with deformation smaller than a set value and negligible deformation when external force changes, such as a metal heat exchange pipe or a high-temperature and high-pressure resistant and flexible plastic heat exchange pipe such as a hard polyethylene plastic pipe.
One embodiment of the present application provides a coil assembly as shown in fig. 1, which is composed mainly of a coil body 10 and a driving unit 20. The coil pipe body 10 is used for introducing circulating hot water to exchange heat with the floor, the coil pipe body 10 at least comprises an elastic deformation unit, and the elastic deformation unit can be used for introducing the circulating hot water and generating corresponding deformation when the stress of the coil pipe body 10 changes, so that the contact heat exchange area with the floor is changed. In other words, the coil body 10 may be entirely provided with the elastic deformation tube 11, or the elastic deformation unit or the elastic deformation tube 11 may be provided only in a partial section. The driving unit 20 is used for applying an external force to the coil body 10, so as to change the stress of the coil body 10, and the elastic deformation unit generates a corresponding deformation.
The driving unit 20 may be a pressing unit for changing the internal and external pressure of the coil body 10 by extruding the coil body 10, or may also be a pulling mechanism for pulling the coil body 10 or the elastic deformation unit to drive the elastic deformation unit to generate corresponding deformation, and the deformation process of the elastic deformation unit of the coil body 10 provided in this embodiment will be described in different embodiments.
In some other embodiments, the coil body 10 may further include an inelastic deformation unit 13, where the inelastic deformation unit 13 is also used to exchange heat with the circulating hot water and the floor, and the elastic deformation unit and the inelastic deformation unit 13 are communicated in a certain order to form the coil body 10 of the present application.
Example 1
Referring to fig. 1, in the present embodiment, the coil body 10 only includes an elastic deformation unit, the elastic deformation unit specifically adopts an elastic deformation tube 11, the elastic deformation tube 11 is a serpentine tube arranged in a serpentine shape, and the driving unit 20 adopts a pressing unit for pressing the side portion of the coil body 10. The serpentine tube includes a plurality of straight tube sections that are substantially parallel to each other, and a transition section that connects adjacent straight tube sections, and the drive unit 20 is preferably disposed at a central position in the length direction of each straight tube section. By adjusting the pressure of the driving unit 20 acting on the coil body 10, the elastic deformation tube 11 is pressed, thereby changing the fluid pressure in the coil body 10. When the fluid pressure in the elastic deformation pipe 11 is increased, the elastic deformation pipe 11 generates a certain length increment, enlarges the contact area with the floor, improves the heat exchange rate of the coil pipe body 10 and the floor, and achieves the aim of rapid refrigeration or heating; when the fluid pressure in the elastic deformation tube 11 is reduced, the length of the elastic deformation tube 11 is contracted to a certain extent, the contact area with the floor is reduced, and the heat exchange rate is reduced, so that the temperature regulation and control under a refrigerating or heating mode is realized.
In this embodiment, the water inlet of the coil body 10 may be provided with a first temperature sensor 31, and the water outlet of the coil body 10 may be provided with a second temperature sensor 32. The inlet water temperature T1 of the coil body 10 is detected by the first temperature sensor 31, and the outlet water temperature T2 of the coil body 10 is detected by the second temperature sensor 32. In addition, the coil body 10 may further be provided with a pressure detection unit, which may include a first pressure sensor 34 disposed at the water inlet of the coil body 10, a second pressure sensor 35 disposed at the water outlet of the coil body 10, and an intermediate pressure sensor disposed at a corresponding point of the coil body 10. The first pressure sensor 34 can be used for detecting the water inlet pressure of the water inlet of the coil body 10, and the second pressure sensor 35 can be used for detecting the water outlet pressure of the water outlet of the coil body 10.
When the coil assembly works in the variable temperature heating mode, the temperature T1 at the water inlet and the temperature T2 at the water outlet of the coil body 10 are recorded, the temperature difference |T2-T1| between the temperature T1 and the temperature T2 in the operation process is recorded as DeltaT, and the maximum temperature difference is recorded as DeltaTmax. The pressure of the water inlet of the coil pipe is P1, the pressure of the water outlet of the coil pipe is P2, wherein the pressure P1 at the inlet is larger than the pressure P2 at the outlet, and the pressure difference is used for guaranteeing the water flow direction.
The pressure applied by the driving assembly to the coil pipe body 10 is set as P, and the larger the applied pressure is, the larger the elastic deformation amount generated by the elastic deformation pipe 11 is, namely, the applied pressure P is positively correlated with the deformation amount DeltaL of the elastic deformation pipe 11. The larger the deformation amount is, the larger the heat exchange area between the coil body 10 and the floor is, the higher the heat exchange efficiency is, and the faster the temperature of the circulating water is reduced, namely, the deformation amount DeltaL is positively related to the inlet-outlet temperature difference DeltaT of the circulating water, so the applied pressure P is positively related to the temperature difference DeltaT. Let p=k×Δt, when the deformation amount is at the maximum Δlmax, the applied pressure is also at the maximum value Pmax at this time. When the temperature difference is maximum Δtmax, the maximum pressure value Pmax is applied, and therefore, k=pmax/Δtmax, the relationship between the pressure applied to the coil body 10 by the driving unit 20 and the temperature difference Δt of the water inlet and outlet of the coil body 10 can be known.
On the premise that the circulating water flow is fixed, the temperature difference delta T of water at the inlet and outlet of the coil body 10 is positively correlated with the indoor temperature, namely, the pressure applied to the coil body 10 by the driving unit 20 is regulated, so that the indoor temperature can be quickly regulated. By setting a proper number of driving units 20, the deformation of each linear pipe section can be ensured to be substantially the same by controlling the pressure applied by each driving unit 20 to the corresponding pipe section, and then the heat exchange rate with the floor is controlled.
Example 2
In this embodiment, the coil body 10 only includes an elastic deformation unit, and the elastic deformation unit specifically adopts an elastic deformation tube 11, and the elastic deformation tube 11 may also be arranged according to a loop-shaped structure or a spiral-shaped structure as shown in fig. 2. The driving unit 20 is disposed on the corresponding side of each circle of the loop-shaped structure, and the driving unit 20 is disposed at the middle section of the corresponding side in the length direction. The driving unit 20 also employs a pressing unit that presses the side of the coil body 10. Considering that the length of each layer from the inner layer to the outer layer of the elastically deformable tube 11 increases gradually, the amount of deformation that can be generated by the corresponding layer also increases gradually, so that the pressure applied by the driving unit 20 to each layer of elastically deformable tube 11 is also different, and a manner of gradually increasing the pressure applied from the inner layer to the outer layer is generally adopted. For example, the pressure difference applied to the coil body 10 by the adjacent two sets of driving units 20 from inside to outside may be set to a constant value.
The first temperature sensor 31, the second temperature sensor 32, the first pressure sensor 34, the second pressure sensor 35, and the intermediate pressure sensor may be provided with reference to embodiment 1, and further, a third temperature sensor 33 for detecting room temperature may be provided as needed.
In the above-described embodiment, the driving unit 20 for adjusting the deformation amount of the elastically deformable tube 11 by applying pressure to the outer wall of the coil body 10 may employ at least one of a mechanical pressing unit 21, a pneumatic pressing unit, and a hydraulic pressing unit.
The mechanical pressing unit 21 may be constructed as shown in fig. 3, the mechanical pressing unit 21 is disposed at both sides of the coil body 10, and the mechanical pressing unit 21 includes at least one set of moving members, presses the coil body 10 when moving toward the coil body 10 by means of the moving members, and adjusts the pressure applied to the coil body 10 by adjusting the displacement amount of the moving members. Illustratively, the mechanical pressing unit 21 includes a stopper provided on a first side of the coil body 10 and a moving member provided on a second side of the coil body 10, and presses the coil by moving the moving member toward the coil body 10 in cooperation with the stopper; the mechanical pressing unit 21 may also employ moving members provided on both sides of the coil body 10 to move toward/away from each other. The moving component can adopt a miniature electric push rod which can be vertical to the coil pipe body 10 and is arranged corresponding to the limiting piece. In order to increase the contact area between the electric push rod and the coil body 10, the end of the coil body 10 acted by the electric push rod can be fixedly connected with a pressing baffle, and the coil body 10 is extruded by the cooperation of the pressing baffle and a limiting piece.
The working principle of the pneumatic pressing unit and the hydraulic pressing unit can be referred to fig. 4, and each of the pneumatic pressing unit and the hydraulic pressing unit includes an elastic pressing sleeve 22, and the elastic pressing sleeve 22 is sleeved on the periphery of the coil body 10 during the laying operation of the coil body 10. The elastomeric pressure sleeve 22 has an elastically deformable cavity that expands when filled with a fluid, such as a gas or liquid, driving the elastomeric pressure sleeve 22 to radially contract toward its inner diameter, thereby creating a compressive force on the coil body 10. The elastic deformation cavity extends to a corresponding interface reserved on the ground or the wall body through the filling pipeline.
The pneumatic pressure applying unit includes an inflator connected to the filling line and adapted to fill the elastically deformable chamber of the elastic pressure applying sleeve 22 with pressurized gas through the filling line. The inflation device can adopt an air pump or an air storage pressure tank, a safety valve can be reserved in the inflation pipeline, and automatic pressure relief is realized when the pressure of the inflation pipeline and the elastic deformation cavity exceeds a set pressure. In addition, a third pressure sensor, a control valve and an exhaust valve may be provided at the junction of the inflator and the inflation line, and the pressure of the inflation line and the elastic pressure applying sleeve 22 may be detected by the third pressure sensor, so as to adjust the pressure of the elastic pressure applying sleeve 22 acting on the coil body 10. The control valve is used for controlling the on-off of the filling pipeline, the exhaust valve is connected between the control valve and the elastic pressure sleeve 22, and the exhaust valve can be opened to exhaust the gas in the elastic pressure sleeve 22 when the control valve is closed.
The hydraulic pressure applying unit further includes a liquid pump which is communicated with the elastic pressure applying sleeve 22 through a filling pipe, and the volume of the elastic pressure applying sleeve 22 is changed by filling liquid such as water into the elastically deforming cavity of the elastic pressure applying sleeve 22, thereby adjusting the pressure of the elastic pressure applying sleeve 22 to the coil body 10. A flow sensor and a fourth pressure sensor are provided between the connection of the liquid pump and the fill line, and the fill flow of the elastomeric pressure sleeve 22 and the pressure applied to the coil body 10 are controlled by the flow sensor and the fourth pressure sensor. The liquid pump and the filling pipeline can be connected with a tee joint as required, and a third interface of the tee joint is provided with a drain valve for draining the liquid in the elastic pressure sleeve 22.
Referring to fig. 5 and 6, considering that the coil body 10 is laid under the floor, in order to ensure that the coil body 10 can generate elastic deformation and generate a certain displacement with respect to the floor, and further change the contact area with the floor, the coil assembly provided by the embodiment of the present application further includes a cover plate unit 40, where the cover plate unit 40 is used to be laid under the floor, so as to form a mounting channel in the cover plate unit 40, where the length of the mounting channel is greater than the length of the coil body 10 corresponding to a certain straight line segment, the width of the mounting channel is greater than the width or diameter of the corresponding coil body 10, and the height of the mounting channel is adapted to the diameter or height of the coil body 10. The cover plate unit 40 may include a lower mat plate, which is provided in a concave shape, and an upper mat plate, which is fastened to the top of the lower mat plate, and the coil body 10 is laid in a groove of the lower mat plate, i.e., a mounting channel, the length and width margin of which provide an elongated/shortened deformation space for the elastically deformable tube 11.
The top of the coil body 10 is attached with an upper cover plate, and in order to increase the contact area between the coil body 10 and the upper cover plate and improve the heat exchange between the coil body 10 and the upper cover plate, the upper cover plate is provided with a preset radian protruding upwards. The upper cover plate is made of a material with good heat conduction performance, and the lower base plate is made of a material with good heat insulation performance.
Example 3
Referring to fig. 7 and 8, unlike the above embodiment, the coil body 10 in this embodiment includes not only elastic deformation units but also inelastic deformation units 13, where the elastic deformation units and the inelastic deformation units 13 are used for introducing circulating hot water to exchange heat with the floor, and the elastic deformation units are connected between the inelastic deformation units 13. The non-elastic deformation unit 13 refers to a pipe with deformation smaller than a set value and negligible deformation when external force changes, such as a metal heat exchange pipe or a high-temperature and high-pressure resistant and flexible plastic heat exchange pipe such as a hard polyethylene plastic pipe.
In a specific embodiment, the elastic deformation units employ expansion joints 12 connected between inelastic deformation units 13, and the volume, i.e., surface area, of the expansion joints 12 can be varied as the internal pressure of the coil body 10 varies. When the circulating water flow rate is fixed, the driving unit 20 is adopted to press the side wall of the coil pipe body 10, the circulating water pressure in the coil pipe body 10 is increased, the volume and the surface area of the expansion joint 12 are also increased, and the heat exchange area and the heat exchange efficiency of the floor are also synchronously increased. In this embodiment, the volume change of the expansion joint 12 is mainly reflected in the horizontal radial direction of the coil body 10, that is, the width direction of the installation channel mentioned in the above embodiment. By providing a plurality of expansion joints 12 along the length direction of the coil body 10, the heat exchange area of the coil body 10 and the floor is changed by the volume change of the expansion joints 12. In this case, the cover plate unit 40 may be disposed only at the position of the expansion joint 12, and the expansion joint 12 may be connected not only between the nonelastomeric deformation units 13 but also to one side of the nonelastomeric deformation units 13, and when the fluid pressure in the coil pipe body 10 increases, the nonelastomeric deformation units 13 fill the expansion joint 12 with fluid to increase the volume of the expansion joint 12; when the fluid pressure in the coil body 10 decreases, the fluid in the expansion joint 12 flows to the inelastic deformation unit 13, and the volume of the expansion joint 12 is simultaneously reduced.
In another embodiment, the elastic deformation units may also adopt elastic deformation tubes 11 connected between the inelastic deformation units 13, the elastic deformation tubes 11 are only disposed at the bending transition sections of the coil body 10, and the cover plate units 40 are disposed corresponding to the positions of the elastic deformation tubes 11.
On the basis of the above embodiment, the coil assembly provided in this embodiment of the present application sets up the first governing valve 36 at the water inlet of coil body 10, sets up the second governing valve 37 at the delivery port of coil body 10, adjusts the circulating water pressure in coil body 10 with the help of first governing valve 36 and second governing valve 37 cooperation drive unit 20, changes the heat transfer area of coil body 10 and floor, and then realizes the purpose of quick refrigeration heating.
Taking the heating mode as an example, the quick heating is required, the driving unit 20 applies external force to the coil pipe body 10, the elastic deformation unit is promoted to generate incremental deformation, the heat exchange area with the floor is enlarged, and the heat exchange efficiency is improved. In addition, the opening degree of the first regulating valve 36 can be regulated and increased simultaneously, the flow rate of the circulating water is increased, and the circulating water pressure in the coil pipe body 10 can be increased on the premise that the opening degree of the second regulating valve 37 is unchanged, so that the driving unit 20 is matched to promote the elastic deformation unit to generate incremental deformation; alternatively, the opening degree of the second regulating valve 37 is reduced while the opening degree of the first regulating valve 36 is adjusted and increased; the purposes of rapid heating are achieved through the double measures of increasing the circulating water flow and increasing the heat exchange area of the coil body 10 and the floor, and the hysteresis of temperature regulation is reduced.
In addition, the opening of the second regulating valve 37 can be properly reduced on the premise of keeping the opening of the first regulating valve 36 unchanged, the pressure of the circulating water in the coil body 10 is increased on the premise of not greatly changing the circulating water flow, and the heat exchange area of the coil body 10 and the floor is lifted by matching with the driving unit 20, so that the heat exchange rate of the coil body 10 and the floor is lifted. On the basis of the embodiment, the heat exchange rate of the coil pipe body 10 and the floor can be further improved by matching with the temperature adjustment of the circulating water, such as increasing the water inlet temperature of the circulating water, the hysteresis of temperature adjustment is reduced, and the purpose of rapid refrigeration or heating is realized.
The embodiment of the application also provides a floor heating air conditioning system, which comprises a heat pump unit, a heat exchanger and the coil pipe assembly provided by the embodiment, wherein the heat exchanger is provided with a first side and a second side which are mutually isolated and are in heat exchange connection, and the first side of the heat exchanger is connected with a refrigerant pipeline of the heat pump unit in series to form a first loop, namely a heat pump circulation loop; the second side of the heat exchanger is connected in series with the coil body 10 of the coil assembly to form a second circuit, i.e. a circulation circuit for the circulating water. The first loop and the second loop are in heat exchange connection through a heat exchanger. In the heating mode, the refrigerant of the heat pump unit exchanges heat with air at the evaporator, low-grade heat energy of an air source is absorbed through evaporation, the refrigerant is condensed and releases heat when circulated to the first side of the heat exchanger, circulating water flowing through the second side of the heat exchanger absorbs heat of the refrigerant condensation, then the circulating water exchanges heat with the floor through the coil body 10, and the circulating water after heat exchange and temperature reduction flows to the second side of the heat exchanger again to absorb heat.
As shown in fig. 9, the heat pump unit includes a controller 30, a first temperature sensor 31 and a first pressure sensor 34 are provided at the water inlet of the coil body 10, a second temperature sensor 32 and a second pressure sensor 35 are provided at the water outlet of the coil body 10, and a third temperature sensor 33 for detecting room temperature is provided indoors. The controller 30 is electrically connected to the first temperature sensor 31, the second temperature sensor 32, the third temperature sensor 33, the first pressure sensor 34, the second pressure sensor 35, and the driving unit 20, so as to control the driving unit 20 to apply force to the coil body 10 according to the inlet water temperature, outlet water temperature, inlet water pressure, outlet water pressure, and room temperature adjustment requirements of the circulating water. When the first adjusting valve 36 is disposed at the water inlet of the coil body 10 and the second adjusting valve 37 is disposed at the water outlet of the coil body 10, the first adjusting valve 36 and the circulating water pump 38 for driving circulating water in the coil body 10 can be simultaneously connected with the controller 30, so that the controller 30 can adjust the frequency of the circulating water pump 38 and the opening of the first adjusting valve 36 and the second adjusting valve 37 according to the temperature adjustment requirement.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A coil assembly, comprising:
the coil pipe body is used for introducing hot water and exchanging heat with the floor, and comprises an elastic deformation unit which generates corresponding deformation when the coil pipe body is stressed and changed so as to change the heat exchange area with the floor;
the driving unit is arranged at the coil body and used for adjusting the force applied to the coil body;
the coil body further comprises inelastic deformation units, and the elastic deformation units are connected between the inelastic deformation units;
the elastic deformation units are expansion joints connected between the inelastic deformation units, and the volume of the expansion joints changes along with the pressure changes of the coil pipe body.
2. The coil assembly of claim 1, wherein the coil body is a serpentine or return tube and the drive unit is disposed in a lengthwise midsection of any one of the straight sections of the coil body.
3. A coil assembly according to claim 1 or 2, wherein the drive unit is any one of the following;
a mechanical pressing unit provided on at least one side of the coil body and configured to press the coil body when moving toward the coil body;
a pneumatic pressing unit;
a hydraulic pressure applying unit;
the pneumatic pressure applying unit and/or the hydraulic pressure applying unit comprises an elastic pressure applying sleeve, the elastic pressure applying sleeve is sleeved on the coil pipe body, and when the elastic pressure applying sleeve is filled with/discharged from fluid, preset deformation is generated so as to change the extrusion force acting on the coil pipe body.
4. The coil assembly of claim 1 or 2, further comprising a cover plate unit for laying under a floor to form a mounting channel for receiving and protecting the coil body, the mounting channel and coil body being located in the same straight section and having a length and width greater than the coil body.
5. The coil assembly of claim 1, wherein a pressure sensing unit is provided within the coil body.
6. The coil assembly of claim 1, wherein the water inlet of the coil body is provided with a first regulator valve and/or the water outlet of the coil body is provided with a second regulator valve.
7. A floor heating air conditioning system, characterized by comprising a heat pump unit, a heat exchanger and the coil assembly according to any one of claims 1-6, wherein the heat exchanger is provided with a first side and a second side for respectively introducing heat exchange fluid, the heat pump unit and the first side of the heat exchanger are connected in series to form a first loop, the coil assembly and the second side of the heat exchanger are connected in series to form a second loop, and the first loop and the second loop are connected in a heat exchange manner through the heat exchanger.
8. The floor heating air conditioning system according to claim 7, wherein the water inlet of the coil body is provided with a first temperature sensor and the water outlet of the coil body is provided with a second temperature sensor.
9. The floor heating air conditioning system of claim 8, further comprising a third temperature sensor for detecting an indoor temperature.
10. The floor heating air conditioning system according to claim 9, wherein the heat pump unit is provided with a controller, and the first temperature sensor, the second temperature sensor, the third temperature sensor, and the driving unit are all electrically connected to the controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311646845.3A CN117346212B (en) | 2023-12-04 | 2023-12-04 | Floor heating air conditioning system and coil pipe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202311646845.3A CN117346212B (en) | 2023-12-04 | 2023-12-04 | Floor heating air conditioning system and coil pipe assembly |
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| CN117346212A CN117346212A (en) | 2024-01-05 |
| CN117346212B true CN117346212B (en) | 2024-04-05 |
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| CN202311646845.3A Active CN117346212B (en) | 2023-12-04 | 2023-12-04 | Floor heating air conditioning system and coil pipe assembly |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN117346212A (en) | 2024-01-05 |
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