CN111426057B - Heat exchange equipment and control method thereof - Google Patents
Heat exchange equipment and control method thereof Download PDFInfo
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- CN111426057B CN111426057B CN202010400990.3A CN202010400990A CN111426057B CN 111426057 B CN111426057 B CN 111426057B CN 202010400990 A CN202010400990 A CN 202010400990A CN 111426057 B CN111426057 B CN 111426057B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
- F24H1/41—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes in serpentine form
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/14—Arrangements for connecting different sections, e.g. in water heaters
- F24H9/146—Connecting elements of a heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to a heat exchange device and a control method thereof, wherein the heat exchange device comprises: the water outlet end of the water inlet pipeline is connected with the water inlet end of the heat exchange unit; the water inlet end of the water outlet pipeline is connected with the water outlet end of the heat exchange unit; the water inlet end of the circulating pipeline is connected with the water outlet end of the water outlet pipeline, and the water outlet end of the circulating pipeline is connected with the water inlet pipeline; the water inlet pipeline is provided with a constant temperature and pressure unit, the water inlet end of the constant temperature and pressure unit is connected to the water outlet end of the circulating pipeline, and the constant temperature and pressure unit is used for mixing water output by the water inlet end of the water inlet pipeline and the water outlet end of the circulating pipeline and adjusting the water pressure of the water inlet pipeline to a preset pressure value. According to the heat exchange equipment, the cold water output by the water inlet end of the water inlet pipeline and the hot water output by the water outlet end of the circulating pipeline are uniformly mixed in the constant-temperature and constant-pressure unit to reach stable temperature, the water pressure in the water inlet pipeline is also kept stable under the regulation of the constant-temperature and constant-pressure unit, and finally the water output by the water outlet pipeline is always kept at the ideal temperature.
Description
Technical Field
The invention relates to the technical field of heat exchange, in particular to heat exchange equipment and a control method of the heat exchange equipment.
Background
With the development of science and technology and the improvement of the living standard of people, a water heater for providing living hot water becomes an essential electric appliance in the life of people, and with the gradual improvement of the requirements of people on the living quality, the requirements on the water heater are also gradually improved. In order to meet the higher and higher requirements of people, water heaters capable of discharging water at constant temperature appear on the market, and the water outlet temperature of the constant-temperature water heaters is claimed to be maintained within the range of +/-0.5 ℃ of the preset temperature, so that the influence on the use experience of users due to the fact that the water temperature is suddenly high and suddenly low is avoided.
However, in the actual use process, the fluctuation range of the outlet water temperature of the existing constant temperature water heater is still large, and the ideal constant temperature state is difficult to realize. The inventor finds in the research process that the reason for the still large fluctuation range of the outlet water temperature is mainly as follows: on one hand, water at the water inlet end of the water heater is usually formed by mixing cold water and circulating hot water, and due to the structural defects of the water heater at present, the cold water and the circulating hot water are difficult to be uniformly mixed in a pipeline, so that the water temperature fluctuation at the water inlet end is large, the water temperature of water flowing into the heat exchanger is high and low, and the water temperature at the water outlet end is also large. On the other hand, because a building usually supplies water by adopting a centralized water supply mode, the water pressure of each household is difficult to maintain in an ideal range, when the water supply water pressure is lower, the water inlet flow of the water inlet end of the water heater is lower, and the heat exchange quantity of the water heater is kept unchanged, so that the water outlet temperature of the water heater is higher, and conversely, when the water pressure is higher, the water inlet flow of the water inlet end of the water heater is higher, and the heat exchange quantity of the water heater is kept unchanged, so that the water outlet temperature of the water heater is lower.
Therefore, the two reasons restrict the realization of the constant-temperature water outlet function of the constant-temperature water heater, and the existing constant-temperature water heater is difficult to achieve the effect of stabilizing the water temperature in the actual use process, so that the aim of improving the user experience cannot be fulfilled.
Disclosure of Invention
Therefore, it is necessary to provide a heat exchange device and a control method of the heat exchange device, which can maintain the outlet water temperature stable, in order to solve the problem of unstable outlet water temperature of the water heater.
A heat exchange apparatus, comprising:
a heat exchange unit;
the water outlet end of the water inlet pipeline is connected with the water inlet end of the heat exchange unit;
the water inlet end of the water outlet pipeline is connected with the water outlet end of the heat exchange unit;
the water inlet end of the circulating pipeline is connected with the water outlet end of the water outlet pipeline, and the water outlet end of the circulating pipeline is connected with the water inlet pipeline; and
wherein, the water intake pipe is equipped with constant temperature and pressure unit, constant temperature and pressure unit is located the water intake pipe with the junction of circulating line with between the play water end of water intake pipe, constant temperature and pressure unit is used for mixing the water intake pipe the end of intaking with the water of circulating line's play water end output, and adjust the water pressure of water intake pipe is to predetermineeing the pressure value.
In one embodiment, the constant temperature and pressure unit comprises a water mixing bin for mixing water output by the water inlet end of the water inlet pipeline and the water outlet end of the circulating pipeline, and the volume of the water mixing bin can be changed under the action of external force so as to adjust the water pressure of the water inlet pipeline to the preset pressure value.
In one embodiment, the water mixing bin can be elastically deformed under the action of internal water pressure to change the volume.
In one embodiment, the volume of the water mixing bin is proportional to the water pressure of the inlet water at the inlet end of the inlet pipeline.
In one embodiment, the heat exchange equipment further comprises a booster pump, the booster pump is arranged at the water inlet end of the water inlet pipeline, and the booster pump is used for increasing the water inlet pressure of the water inlet end of the water inlet pipeline.
In one embodiment, the heat exchange device further comprises a delivery pump, and the delivery pump is arranged on the water inlet pipeline and is positioned between the constant temperature and constant pressure unit and the water outlet end of the water inlet pipeline.
In one embodiment, the heat exchange equipment further comprises a combustion unit, the combustion unit is arranged on one side of the heat exchange unit, and the combustion unit is used for providing heat for the heat exchange unit.
A control method of heat exchange equipment comprises the following steps:
acquiring water output by a water inlet end of a water inlet pipeline and a water outlet end of a circulating pipeline;
and mixing the water flowing out of the water inlet end of the water inlet pipeline and the water flowing out of the water outlet end of the circulating pipeline, and adjusting the water pressure of the water inlet pipeline to a preset pressure value.
In one embodiment, the heat exchange equipment comprises a constant temperature and constant pressure unit, wherein the constant temperature and constant pressure unit comprises a water mixing bin with the volume capable of changing under the action of an external force; the step of mixing the water flowing out from the water inlet end of the water inlet pipeline and the water outlet end of the circulating pipeline and adjusting the water pressure of the water inlet pipeline to a preset pressure value specifically comprises the following steps:
and mixing the water flowing out from the water inlet end of the water inlet pipeline and the water outlet end of the circulating pipeline, and changing the volume of the water mixing bin according to the water inlet pressure of the water inlet end of the water inlet pipeline so as to adjust the water pressure of the water inlet pipeline to a preset pressure value.
In one embodiment, the control method of the heat exchange device further comprises the following steps:
acquiring the water inlet pressure of the water inlet end of the water inlet pipeline;
and when the water inlet pressure of the water inlet end of the water inlet pipeline is judged to be smaller than the preset water inlet pressure, the water inlet pressure of the water inlet end of the water inlet pipeline is increased.
In one embodiment, the heat exchange device further comprises a combustion unit, and the control method of the heat exchange device further comprises the following steps:
acquiring the water temperature of the water outlet end of the water inlet pipeline;
and adjusting the working state of the combustion unit according to the water temperature at the water outlet end of the water inlet pipeline.
According to the heat exchange equipment, the cold water output by the water inlet end of the water inlet pipeline and the hot water output by the water outlet end of the circulating pipeline are uniformly mixed in the constant-temperature constant-pressure unit to reach stable temperature, the water pressure in the water inlet pipeline is kept stable under the regulation of the constant-temperature constant-pressure unit, so that the water temperature and the water pressure of the water conveyed to the heat exchange unit by the water inlet pipeline are kept stable, finally, the water output by the water outlet pipeline is kept at ideal temperature all the time and cannot fluctuate along with the change of the water supply pressure of external water supply equipment, and the constant-temperature output of the heat exchange equipment is really realized.
Drawings
FIG. 1 is a schematic structural diagram of a heat exchange apparatus according to an embodiment of the present invention;
fig. 2 is a flow chart of a control method of the heat exchange device shown in fig. 1.
Description of reference numerals:
100. heat exchange equipment; 10. a heat exchange unit; 20. a combustion unit; 30. a water inlet pipeline; 32. a delivery pump; 34. a constant temperature and constant pressure unit; 40. a water outlet pipeline; 50. a circulation line.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1, fig. 1 shows a schematic structural diagram of a heat exchange device 100 according to an embodiment of the present invention. An embodiment of the present invention provides a heat exchange device 100, and the heat exchange device 100 is used for heating cold water to provide hot life water for a user. The structure of the heat exchanger 100 in the present application will be described below by taking the heat exchanger 100 as a gas water heater as an example. The present embodiment is described as an example, and the technical scope of the present application is not limited thereto. It is understood that in other embodiments, the heat exchanging device 100 may also be embodied as other devices capable of exchanging heat, and is not limited herein.
Referring to fig. 1, the heat exchanger 100 includes a heat exchanger unit 10, a combustion unit 20, a water inlet pipeline 30, a water outlet pipeline 40, and a circulation pipeline 50, where the combustion unit 20 is used to provide heat for the heat exchanger unit 10, the water inlet pipeline 30, the heat exchanger unit 10, and the water outlet pipeline 40 are connected in sequence, water in an external water supply device enters the heat exchanger unit 10 through the water inlet pipeline 30, after heat is absorbed in the heat exchanger unit 10, a part of hot water flows out through the water outlet pipeline 40 to enter a water using terminal for being used by a user, and another part of hot water returns to the water inlet pipeline 30 through the circulation pipeline 50 to be mixed with cold water in the water inlet pipeline 30.
Specifically, the combustion unit 20 is located on one side of the heat exchange unit 10, and includes an air inlet structure and a burner, the air inlet structure and the burner are connected to each other, the air inlet structure is used for conveying the gas in the external gas supply device to the burner, the gas is combusted in the burner, the heat generated by the combustion of the gas is exchanged with the water in the heat exchange unit 10, and the water in the heat exchange unit 10 absorbs the heat and the temperature gradually rises. It is understood that the specific configurations of the combustion unit 20 and the heat exchange unit 10 are not the main points of the present invention, and therefore, are not described herein.
The water inlet end of the water inlet pipeline 30 is connected with an external water supply device, the water outlet end of the water inlet pipeline 30 is connected with the water inlet end of the heat exchange unit 10, the water inlet pipeline 30 is provided with a delivery pump 32, and the delivery pump 32 is used for delivering water at the water inlet end of the water inlet pipeline 30 to the heat exchange unit 10. The water inlet end of the water outlet pipeline 40 is connected to the water outlet end of the heat exchange unit 10, and the water outlet end of the water outlet pipeline 40 is connected to an external water consumption device. In this way, the cold water in the external water supply device flows into the heat exchange unit 10 through the water inlet pipeline 30, and the hot water heated by absorbing heat in the heat exchange unit 10 is delivered to the external water device through the water outlet pipeline 40 for the user to use.
The water inlet end of the circulation pipeline 50 is connected to the water outlet end of the water outlet pipeline 40, and the water outlet end of the circulation pipeline 50 is connected to the water inlet pipeline 30. In this manner, water in the outlet line 40 that is not used by the external water device is recirculated back to the inlet line 30 through the recirculation line 50.
As described in the background art, since the pressure of the water provided by the external water supply device to the heat exchange device 100 varies greatly, resulting in a large fluctuation of the outlet temperature of the outlet pipeline 40, in order to solve the above problem, the water inlet pipeline 30 of the present application is provided with the constant temperature and pressure unit 34, the constant temperature and pressure unit 34 is located between the connection position of the water inlet pipeline 30 and the circulation pipeline 50 and the outlet end of the water inlet pipeline 30, and the constant temperature and pressure unit 34 is used for mixing the water output from the water inlet end of the water inlet pipeline 30 and the outlet end of the circulation pipeline 50 and adjusting the water pressure of the water inlet pipeline 30 to a preset pressure value. Preferably, the constant temperature and pressure unit 34 is located between the connection of the water inlet line 30 and the circulation line 50 and the delivery pump 32.
Therefore, the cold water output from the water inlet end of the water inlet pipeline 30 and the hot water output from the water outlet end of the circulating pipeline 50 are uniformly mixed in the constant temperature and constant pressure unit 34 to reach a stable temperature, the water pressure in the water inlet pipeline 30 is also kept stable under the regulation of the constant temperature and constant pressure unit 34, and further the water temperature and the water pressure of the water conveyed to the heat exchange unit 10 by the water inlet pipeline 30 are also kept stable, finally, the water output from the water outlet pipeline 40 is always kept at an ideal temperature, and cannot fluctuate along with the change of the water supply pressure of the external water supply equipment, so that the constant temperature output of the heat exchange equipment 100 is really realized.
Specifically, the constant temperature and pressure unit 34 includes a water mixing chamber for mixing cold water input from the water inlet end of the water inlet pipeline 30 and hot water output from the water outlet end of the circulation pipeline 50, the volume of the water mixing chamber can be changed under the action of external force, and the volume of the water mixing chamber is in direct proportion to the water pressure of the inlet water at the water inlet end of the water inlet pipeline 30.
So, mix the volume in sump and increase along with the intake water pressure's of the end of intaking of inlet channel 30 increase to can effectively release water pressure, adjust the water pressure of inlet channel 30 to preset pressure value in real time. Specifically, in the embodiment, when the water pressure of the water inlet end of the water inlet pipeline 30 is increased, the volume of the water mixing bin is also increased to release the water pressure, and when the water pressure of the water inlet end of the water inlet pipeline 30 is smaller, the volume of the water mixing bin is also decreased, so that the water pressure of the water inlet pipeline 30 is always kept stable.
Specifically, in an embodiment, the water mixing chamber is a bladder-shaped structure formed by an elastic material, water flowing into the constant temperature and pressure unit 34 enters the water mixing chamber, and the water mixing chamber can automatically generate recoverable elastic deformation under the action of internal water pressure to release the water pressure, so that the automatic adjustment of the water pressure of the water inlet pipeline 30 is realized. It can be understood that the material, shape, size and number of the water mixing bin are not limited, and the water mixing bin can be arranged as required to meet different requirements.
In some embodiments, the heat exchanging apparatus 100 further comprises a booster pump (not shown) disposed at the water inlet end of the water inlet pipeline 30, and the booster pump is used for increasing the water pressure of the water inlet pipeline 30. Thus, the booster pump and the constant temperature and pressure unit 34 cooperate to maintain the water pressure in the water inlet pipeline 30 stable, so that the outlet temperature of the water outlet pipeline 40 is always kept within the preset range. Specifically, in one embodiment, when the inlet water pressure in the inlet line 30 is less than the predetermined value, the booster pump starts to boost the inlet water pressure. When the water pressure of the inlet water of the inlet pipe 30 is greater than the preset value, the booster pump can stop the boosting operation. It is understood that in some embodiments, the water inlet end of the water inlet line 30 may not be provided with a booster pump to reduce the cost of the heat exchange apparatus 100.
Fig. 2 shows a control method of the heat exchange device 100 according to an embodiment of the present invention, where the control method of the heat exchange device 100 includes the following steps:
s110: the magnitude of the water inlet pressure at the water inlet end of the water inlet pipeline 30 is obtained.
Specifically, the booster pump installed at the water inlet end of the water inlet pipeline 30 can obtain the water inlet pressure in real time.
S120: when the water inlet pressure of the water inlet end of the water inlet pipeline 30 is judged to be smaller than the preset water inlet pressure, the water inlet pressure of the water inlet pipeline 30 is increased.
Specifically, when the booster pump determines that the water inlet pressure of the water inlet end of the water pressure water inlet line 30 is less than the preset water inlet pressure, the booster pump starts the boosting work to increase the water inlet pressure of the water inlet end of the water inlet line 30.
S130: water output from the water inlet end of the water inlet pipeline 30 and the water outlet end of the circulating pipeline 50 is obtained.
Specifically, the cold water output from the water inlet end of the water inlet pipeline 30 and the hot water output from the water outlet end of the circulating pipeline 50 enter the water mixing bin of the constant temperature and pressure unit 34.
S140: mixing the water flowing out from the water inlet end of the water inlet pipeline 30 and the water outlet end of the circulating pipeline 50, and adjusting the water pressure of the water inlet pipeline 30 to a preset pressure value.
Specifically, the cold water output from the water inlet end of the water inlet pipeline 30 is mixed with the hot water output from the water outlet end of the circulation pipeline 50 in the water mixing bin of the constant temperature and pressure unit 34, and since the water mixing bin provides a large mixing space for the cold water and the hot water, the cold water and the hot water can be uniformly mixed in the water mixing bin, so that the water output from the constant temperature and pressure unit 34 has a stable temperature and is not cooled or heated.
In some embodiments, step S140 specifically includes the following steps:
s141: the water flowing out from the water inlet end of the water inlet pipeline 30 and the water outlet end of the circulation pipeline 50 are mixed, and the volume of the water mixing bin is changed according to the water inlet pressure of the water inlet end of the water inlet pipeline 30, so that the water pressure of the water inlet pipeline 30 is adjusted to a preset pressure value.
Specifically, because the water mixing bin of the constant temperature and pressure unit 34 can generate elastic deformation capable of being restored under the action of the water pressure inside the water mixing bin, the constant temperature and pressure unit 34 can automatically change the volume of the water mixing bin according to the size of the water inlet pressure of the water inlet pipeline 30, so as to adjust the water pressure of the water inlet pipeline 30 to a preset pressure value. When the water pressure of the inlet water at the inlet end of the water inlet pipeline 30 is large, the volume of the water mixing bin is also increased to release pressure, and when the water pressure of the inlet water at the inlet end of the water inlet pipeline 30 is small, the volume of the water mixing bin is also reduced, so that the internal pressure in the water mixing bin is still kept stable.
Further, after step S140, the following steps are also included:
s150: the temperature of the water at the outlet end of the water inlet line 30 is obtained.
Specifically, the heat exchange device 100 further comprises a water temperature sensor, which is installed at the water outlet end of the water inlet pipeline 30 to obtain the water temperature at the water outlet end of the water inlet pipeline 30.
S160: the operating state of the combustion unit 20 is adjusted according to the temperature of the water at the water outlet end of the water inlet pipe 30.
Specifically, the combustion unit 20 may operate at different combustion powers depending on the water temperature at the water outlet end of the water inlet line 20. When the water temperature at the water outlet end of the water inlet pipeline 30 is low, the combustion unit 20 burns with high power to generate more heat in unit time, so as to greatly increase the temperature of the water output from the water outlet end of the heat exchange unit 10. When the water temperature at the outlet end of the water inlet pipe 30 is higher, the combustion unit 20 burns with lower power to generate less heat per unit time, thereby raising the temperature of the water output from the outlet end of the heat exchange unit 10 to a smaller extent. In this way, the constant temperature and pressure unit 34 works in cooperation with the combustion unit 20 to maintain the temperature of the outlet water of the heat exchange device 100 stable without being interfered by the water pressure of the external water supply device.
The heat exchange device 100 and the control method of the heat exchange device 100 can fully mix the hot water output from the water outlet end of the circulation pipeline 50 and the cold water output from the water inlet end of the water inlet pipeline 30 by the constant temperature and pressure unit 34, thereby ensuring the stability of the temperature of the water entering the heat exchange unit 10. Meanwhile, the constant temperature and pressure unit 34 can also automatically adjust the water pressure of the water inlet pipeline 30 in real time according to the water inlet pressure of the water inlet end of the water inlet pipeline 30, and further ensure the stability of the water outlet temperature of the water outlet end of the water outlet pipeline 40, so that the stability of the water outlet temperature of the heat exchange device 100 is maintained under the condition that the water supply pressure of the external water supply device is unstable, the real constant temperature water outlet is realized, the use experience of the heat exchange device 100 is improved, and the life quality of a user is obviously improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A heat exchange apparatus, comprising:
a heat exchange unit (10);
the water outlet end of the water inlet pipeline (30) is connected with the water inlet end of the heat exchange unit (10);
the water inlet end of the water outlet pipeline (40) is connected with the water outlet end of the heat exchange unit (10);
a circulating pipeline (50), wherein the water inlet end of the circulating pipeline (50) is connected to the water outlet end of the water outlet pipeline (40), and the water outlet end of the circulating pipeline (50) is connected to the water inlet pipeline (30); and
wherein, inlet channel (30) are equipped with constant temperature and pressure unit (34), constant temperature and pressure unit (34) are located inlet channel (30) with the junction of circulating line (50) with between the play water end of inlet channel (30), constant temperature and pressure unit (34) are including mixing the sump, and mixing the sump and be the capsular structure, it is used for mixing to mix the sump the inlet end of inlet channel (30) with the water of the play water end output of circulating line (50), it can produce elastic deformation under the effect of internal water pressure and change the volume size to mix the water pressure of inlet channel (30) to predetermineeing the pressure value.
2. The heat exchange device of claim 1, wherein the water mixing bin is a bag-shaped structure formed by elastic materials.
3. The heat exchange device according to claim 1, wherein the volume of the water mixing bin is proportional to the water pressure of the inlet water at the inlet end of the inlet pipeline (30).
4. The heat exchange device according to claim 1, further comprising a booster pump, wherein the booster pump is arranged at the water inlet end of the water inlet pipeline (30), and the booster pump is used for increasing the water inlet pressure of the water inlet end of the water inlet pipeline (30).
5. The heat exchange device according to claim 1, further comprising a delivery pump (32), wherein the delivery pump (32) is arranged on the water inlet pipeline (30) and is positioned between the constant temperature and pressure unit (34) and the water outlet end of the water inlet pipeline (30).
6. The heat exchange device according to claim 1, further comprising a combustion unit (20), wherein the combustion unit (20) is arranged at one side of the heat exchange unit (10), and the combustion unit (20) is used for providing heat for the heat exchange unit (10).
7. A method for controlling a heat exchange device according to any one of claims 1 to 6, comprising the steps of:
acquiring water output by a water inlet end of the water inlet pipeline (30) and a water outlet end of the circulating pipeline (50);
mixing water flowing out of the water inlet end of the water inlet pipeline (30) and the water outlet end of the circulating pipeline (50), and adjusting the water pressure of the water inlet pipeline (30) to a preset pressure value.
8. The control method of the heat exchange device is characterized in that the heat exchange device comprises a constant temperature and pressure unit (34), wherein the constant temperature and pressure unit (34) comprises a water mixing bin with the volume capable of changing under the action of external force; the step of mixing the water flowing out from the water inlet end of the water inlet pipeline (30) and the water flowing out from the water outlet end of the circulating pipeline (50), and adjusting the water pressure of the water inlet pipeline (30) to a preset pressure value specifically comprises the following steps:
mixing water flowing out of the water inlet end of the water inlet pipeline (30) and the water outlet end of the circulating pipeline (50), and changing the volume of the water mixing bin according to the water inlet pressure of the water inlet end of the water inlet pipeline (30) so as to adjust the water pressure of the water inlet pipeline (30) to a preset pressure value.
9. The method for controlling the heat exchange device according to claim 8, further comprising the steps of:
acquiring the water inlet pressure of the water inlet end of the water inlet pipeline (30);
and when the water inlet pressure of the water inlet end of the water inlet pipeline (30) is judged to be smaller than the preset water inlet pressure, the water inlet pressure of the water inlet end of the water inlet pipeline (30) is increased.
10. The control method of the heat exchange device according to claim 8, further comprising a combustion unit (20), further comprising the steps of:
acquiring the water temperature of the water outlet end of the water inlet pipeline (30);
and adjusting the working state of the combustion unit (20) according to the water temperature at the water outlet end of the water inlet pipeline (30).
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| CN112178907A (en) * | 2020-10-10 | 2021-01-05 | 珠海格力电器股份有限公司 | Water heater control method and device and water heater |
| CN113701343A (en) * | 2021-08-04 | 2021-11-26 | 广东超人节能厨卫电器有限公司 | Water heater capable of mixing and preheating |
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| CN111426057A (en) | 2020-07-17 |
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