CN105135748A - Constant-temperature heat exchanging mechanism - Google Patents
Constant-temperature heat exchanging mechanism Download PDFInfo
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- CN105135748A CN105135748A CN201510515262.6A CN201510515262A CN105135748A CN 105135748 A CN105135748 A CN 105135748A CN 201510515262 A CN201510515262 A CN 201510515262A CN 105135748 A CN105135748 A CN 105135748A
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Abstract
The invention discloses a constant-temperature heat exchanging mechanism. The constant-temperature heat exchanging mechanism comprises a constant-temperature tank used for containing heat exchanging media. The constant-temperature tank is provided with a liquid outlet and a liquid returning port. The constant-temperature heat exchanging mechanism further comprises at least one heat exchanging pipe provided with an inlet and an outlet. The inlet of the heat exchanging pipe is communicated with the liquid outlet of the constant-temperature tank. The outlet of the heat exchanging pipe is communicated with the liquid returning port of the constant-temperature tank. The middle of the heat exchanging pipe is bent, and two bent parts are formed. The two bent parts are close to each other to ensure sufficient heat transferring, and a constant-temperature part is integrally formed. The constant-temperature heat exchanging mechanism further comprises a circulation pump used for conveying the heat exchanging media into the heat exchanging pipe. The two bent parts are close to each other to ensure sufficient heat transferring, and the constant-temperature part is integrally formed. The average values of the temperatures at the any two corresponding positions of the two bent parts are the same. After the constant-temperature part serves as an integral, the temperature of any position on the constant-temperature part is the same, and the evenness of the temperature can be greatly improved through the structural form.
Description
Technical field
The present invention relates to field of heat exchange, be specifically related to constant temperature heat exchange mechanisms.
Background technology
Heat exchange mechanisms is used for heating, cooling and exact constant temperature control market prospects widely, application comprises the comfort air conditioning system of office and household, pharmacy, the chemicals in food and cosmetics field and the stability study of preparation thereof and storage, the plant growth test of life science, tissue and microorganism are cultivated, seed germination experiment, insect and toy are raised and the environmental safety evaluation of chemical pesticide, the clean operating room of medical treatment and electronic applications, Biological Pure Laboratory, dust proof workshop and clean room, the mechanical model laboratory etc. in frozen soil engineering field.
If Authorization Notice No. is the patent document of CN203865252U, disclose a kind of insulating box, it comprises: outer container, and outer container is provided with chamber door; Interior case, is provided with temperature sensor in interior case; The heating unit comprising blower fan and heater is provided with between outer container and interior case; Wherein, between outer container and interior case, be provided with the air flow channel be surrounded on outside interior case, interior case has the through hole be communicated with air flow channel, enable the air in air flow channel and the cross-ventilation in interior case.The width of air flow channel and the deep equality of interior case.Heating unit is arranged on the lower left quarter between outer container and interior case, the upper wall of interior case and lower wall are respectively arranged with at least one exhausting hole, the Zuo Bi of interior case and right wall are respectively arranged with multiple via-hole array, and wherein, the direction that the line number of the via-hole array of interior case right arm flows along air increases progressively.This insulating box adopts forced convertion mode to realize the uniformly transfer heat of housing interior volume temperature.
As existing air-conditioning, generally include compressor, condenser, evaporimeter, capillary, the refrigeration system of the composition such as blower fan, also comprises the heating system be made up of heating element heater and blower fan etc.When freezing, absorbing heat by the evaporation of cold-producing medium in evaporimeter, evaporimeter ambient air is lowered the temperature, then by blower fan, cold wind being blown into the interior space to lower the temperature; When heating, by the air of heat pump condenser or auxiliary heating element heated periphery, then by blower fan, the hot blast around thermal source being blown into the interior space, heating up.
As existing refrigerator, generally include compressor, condenser, capillary and evaporimeter etc., evaporimeter is arranged in refrigerator sidewall or dividing plate, during work, absorbs heat by the evaporation of cold-producing medium in evaporimeter, thus realizes cooling and low temperature.
The said equipment all realizes refrigeration by heat exchange mechanisms or heats, consider cost factor, the heat exchange area of above-mentioned insulating box and its thermal source of air-conditioning is limited, when heating, by increasing the temperature difference between heat source temperature and target temperature, forced convertion mode is adopted to realize forced heat radiation and improve the temperature uniformity of housing interior volume.Temperature uniformity achieved by apparent this mode is on the low side, can not meet the demand of high evenness and high-precision applications; For heat pump air conditioner, when the temperature difference is larger between thermal source and target temperature, also can reduce the Energy Efficiency Ratio of heat pump air conditioner, energy consumption is increased.
Above-mentioned air-conditioning and refrigerator are when freezing, the temperature of evaporimeter is also uneven, the temperature of evaporator surface can gradually change along with the flowing of cold-producing medium in pipe-line layout and pipeline thereof and evaporation, and evaporimeter is regarded as a heat exchange layer, then the temperature of this heat exchange layer arbitrfary point is inconsistent.Simultaneously by the restriction of processing cost, heat exchange area and evaporimeter volume, the heat exchange capacity that the temperature difference between sink temperature and target temperature meets the demands with realization need be increased, thus cause the increase of thermograde and control accuracy to decline; Same due to the temperature difference larger between low-temperature receiver and target temperature, also can reduce the Energy Efficiency Ratio of refrigeration system, energy consumption is increased.
The thermal source of the heat exchange mechanisms of prior art or low-temperature receiver self-temperature instability, this can cause the fluctuation degree of constant temperature space temperature to increase, and first heat transferring medium is kept steady temperature by heating, refrigeration and thermostatic control mode by the application, and then realize carrying out heat exchange with target environment by the flowing of heat transferring medium in heat exchanger tube of temperature constant, the heat exchange form of this secondary constant temperature, effectively can improve the thermostatic control precision of heat exchange mechanisms.
Further, described heat exchange element is heater, and described heater is geothermal source, hydro-thermal source or air energy heat exchanger, the condenser of geothermal source, hydro-thermal source or air energy heat pump, or resistance heater.
Further, described heat exchange element is refrigerating plant, and described refrigerating plant is geothermal source, hydro-thermal source or air energy heat exchanger, or is the evaporimeter of geothermal source, hydro-thermal source or air energy heat pump.
Adopt geothermal source as source heat pump heat and cold source of air conditioning, with air energy air conditioner system ratio, operational efficiency improves more than 40%, saves operating cost 50 ~ 70%.In the buried underground of key components and parts of geothermal-source heat pump or installation room, avoid outdoor harsh weather impact, its under ground portion can be guaranteed 50 years, and aerial part can be guaranteed 30 years, and system maintenance cost very reduces.
In practical application, spring and autumn conditioning in Transition Season or the area of environmental condition gentleness, the area that rock-soil layer temperature is high especially or low especially, or the water resource that water temperature is high especially or low especially can utilize area, the such as downstream etc. of hot spring, water-power plant, even high-low temperature waste water discharges the occasion that can recycle, can using geothermal source or hydro-thermal source directly as low-temperature receiver or thermal source, namely by the water circulation direct heat transfer between heat exchanger and low-temperature receiver or thermal source, and without the need to being realized heating, cooling and constant temperature by the power consumption of refrigerating plant, thus reduce energy consumption and noise.
In practical application, also there is localized hyperthermia or low-temperature air energy resource, even high temperature or low temperature waste gas discharge the occasion that can recycle, can using air energy directly as low-temperature receiver or thermal source, namely by the water circulation direct heat transfer between heat exchanger and low-temperature receiver or thermal source, and without the need to being realized heating, cooling and constant temperature by the power consumption of refrigerating plant, thus reduce energy consumption and noise.
Control needs according to actual temperature, heat exchange element can also comprise heater and refrigerating plant simultaneously, and namely constant temperature heat exchange mechanisms both can heat and also can freeze.
The invention also discloses a kind of insulating box, comprise thermostatic box, also comprise constant temperature heat exchange mechanisms mentioned above, the heat exchanger tube of described constant temperature heat exchange mechanisms is arranged on the sidewall of described thermostatic box.
Heat exchanger tube is arranged on the sidewall of described thermostatic box, and increase heat exchange area to greatest extent by being connected in parallel or repeatedly bending mode, make the sidewall of thermostatic box that the minimum possibility heat transferring medium of temperature difference and the heat exchanger tube of maximum possible heat transfer area can be used to carry out heat exchange, the uniformity of constant temperature the temperature inside the box is improved to greatest extent.
The invention also discloses another kind of insulating box, comprise thermostatic box, also comprise the heat exchange dividing plate be arranged in thermostatic box, and constant temperature heat exchange mechanisms mentioned above; The heat exchanger tube of described constant temperature heat exchange mechanisms is arranged in corresponding heat exchange dividing plate.
Heat exchanger tube is arranged in heat exchange dividing plate, and increase heat exchange area to greatest extent by being connected in parallel or repeatedly bending mode, make heat exchange dividing plate that the minimum possibility heat transferring medium of temperature difference and the heat exchanger tube of maximum possible heat transfer area can be used to carry out heat exchange, the uniformity of constant temperature the temperature inside the box is improved to greatest extent.
Further, described heat exchange dividing plate is one or uniformly at intervals multiple.
The heat exchange dividing plate of multiple equidistant layout, can be reduced the vertical range between two adjacent separator by the quantity increasing heat exchange dividing plate, the Vertical Uniform degree of temperature improves further, does not even need to use forced ventilation just can reach the desirable uniformity.
The insulating box of the application as high evenness and high-precision refrigerator or refrigerating box, also can be used as high evenness and high-precision high-temperature test chamber, low-temperature test chamber or high-low temperature test chamber etc.Pharmacy, the chemicals in food and cosmetics field and the stability study of preparation thereof and storage can be used as, the test of the plant growth of life science, tissue and microorganism is cultivated, seed germination experiment, insect and toy is raised and the environmental safety evaluation etc. of chemical pesticide.
The invention also discloses a kind of room temperature adjusting device, comprise constant temperature heat exchange mechanisms mentioned above; The heat exchanger tube of described constant temperature heat exchange mechanisms is embedded on the end face in room, bottom surface or sidewall.
This version of room temperature adjusting device, by the minimum possibility heat transferring medium of temperature difference and the heat exchanger tube of maximum possible heat transfer area, uniform temperature can be realized without the need to forced ventilation circulation to control, there is not strong blowing feeling or ventilation noise that forced ventilation brings, there will not be the situation that local temperature is too high or too low, meet high-comfort with high evenness, high-precision thermostatic control requirement.
The application of room temperature adjusting device comprises the comfort air conditioning system of office and household, pharmacy, the chemicals in food and cosmetics field and the stability study of preparation thereof and storage, plant growth test, the tissue of life science and microorganism is cultivated, seed germination experiment, insect and toy is raised and the environmental safety evaluation of chemical pesticide, medical treatment and the clean operating room of electronic applications, Biological Pure Laboratory, dust proof workshop and clean room, the mechanical model laboratory etc. in frozen soil engineering field.
The invention has the beneficial effects as follows: two kinks are mutually drawn close and guarantee abundant heat transfer, overall formation constant temperature portion, the temperature averages of two any correspondence positions of kink is all identical, after regarding an entirety as by constant temperature portion, in constant temperature portion, the temperature of optional position is all identical, and this version can improve the uniformity of temperature greatly.
Summary of the invention
The present invention is directed to the problems referred to above, least for two deficiencies overcoming temperature fluctuation and the uniformity, propose a kind of constant temperature heat exchange mechanisms.Solve the prior art poor temperature uniformity defect large with fluctuation degree and problem that the is high-comfort and application scenario of fluctuation degree, uniformity high request can not be met.
The technical scheme that the present invention takes is as follows:
A kind of constant temperature heat exchange mechanisms, comprise the thermostatic tank for holding heat transferring medium, described thermostatic tank has liquid outlet and liquid return hole, also comprise at least one heat exchanger tube, described heat exchanger tube has an import and an outlet, the import of heat exchanger tube is communicated with the liquid outlet of thermostatic tank, and the outlet of heat exchanger tube is communicated with the liquid return hole of thermostatic tank; Bend in the middle part of heat exchanger tube, form two kinks, two kinks are mutually drawn close and guarantee abundant heat transfer, overall formation constant temperature portion; Described constant temperature heat exchange mechanisms also comprises the circulating pump for being sent into by heat transferring medium in heat exchanger tube.
The application's said " drawing close ", represents that two kinks are mutually close to or leave certain gap, and the object of drawing close is to conduct heat to guarantee the uniformity uniformly between them.In practice, determine whether be close to or retain certain gap and fill the material guaranteeing uniformly transfer heat according to the demand of the uniformity and the cost of enforcement and convenience degree.
First heated by thermostatic tank or cooling heat transferring medium make it reach temperature stabilization, then realize carrying out heat exchange with target environment by the flowing of heat transferring medium in heat exchanger tube, the thermostatically controlled mode of this secondary, can effectively improve fluctuation degree, but significantly can not improve the uniformity.In the application, it is in order to ensure abundant heat transfer that two kinks are drawn close mutually, two kink entirety of mutually drawing close form constant temperature portion, the temperature averages of two any correspondence positions of kink is all identical, after regarding an entirety as by constant temperature portion, in constant temperature portion, the temperature of optional position is all identical, and this version significantly can improve the uniformity of Temperature Distribution.
In conjunction with secondary thermostatic control and constant temperature portion, can ensure that constant temperature heat exchange mechanisms has lower fluctuation degree, there is good uniformity simultaneously.
The concrete principle in constant temperature portion is as follows: at heat exchanger tube material everywhere, density, under the identical prerequisite such as wall thickness and internal diameter, the heat transferring medium of heat exchanger tube and its internal flow, because the existence of heat exchange, the temperature of heat exchanger tube and heat transferring medium can along the direction even variation of its flowing, this characteristic makes two kinks be bent to form in the middle part of heat exchanger tube mutually draw close and after guaranteeing fully heat transfer, two high temperature of one, any corresponding position of kink temperature are low, by fully heat transfer and temperature complementation, thus guarantee that the temperature of optional position, constant temperature portion is identical.Total length as heat exchanger tube is 20m, and inlet temperature is 22 DEG C, and outlet is 18 DEG C, can be understood as the every flow progresses 1m of heat transferring medium, temperature drops to (22-18) DEG C/and 20m=0.2 DEG C/m.By heat exchanger tube in the bending of 10m place, then two of heat exchanger tube kinks mutually to be drawn close and made it fully conduct heat, the temperature of constant temperature portion in heat exchanger tube bending place is 22 DEG C-(0.2 DEG C/m × 10m)=20 DEG C.In like manner, the kink temperature leaving heat exchanger tube entrance location 5m place is 22 DEG C-(0.2 DEG C/m × 5m)=21 DEG C, the kink temperature leaving 5m place, heat exchanger tube exit position is 22 DEG C-(0.2 DEG C/m × 15m)=19 DEG C, the temperature at 5m place, heat exchanger tube exit position and entrance location 5m place is being left for (19 DEG C+21 DEG C)/2=20 DEG C by constant temperature portion.Thus can inference, the temperature of any position, constant temperature portion is 20 DEG C.
Further, constant temperature heat exchange mechanisms also comprises the fluid house steward be communicated with thermostatic tank liquid outlet, and time liquid house steward be communicated with thermostatic tank liquid return hole; Described heat exchanger tube has structure and identical many of length, and the import of each heat exchanger tube is all communicated with described fluid house steward, and the outlet of each heat exchanger tube is all communicated with described time liquid house steward; The constant temperature portion of each heat exchanger tube equidistantly arranges each other and forms the larger heat exchange layer of heat exchange area.
The constant temperature portion of each heat exchanger tube is equidistantly evenly arranged each other, the import of each heat exchanger tube is all communicated with fluid house steward, outlet is all communicated with time liquid house steward, this structure infinitely can increase the heat exchange area of heat exchange mechanisms, guaranteeing fluid house steward and returning between liquid house steward, between the heat exchanger tube be respectively connected in parallel, its material, density, wall thickness and internal diameter identical time, can guarantee that the temperature of the optional position, constant temperature portion be respectively connected in parallel is substantially identical, the heat exchange layer of the heat exchanger tube formation of structure like this, the temperature of its optional position is substantially identical, achieve the uniform application demand of large area heat exchange layer temperature altitude.
Further, described constant temperature portion bends repeatedly, forms zigzag, continuous S-shaped or spirality, and the constant temperature portion after bending forms the heat exchange layer of homogeneous temperature.
During practice, in order to ensure the better uniformity, when constant temperature portion is according to zigzag or continuous S-shaped bending, " Z " shape of each repeating part or serpentine are answered identical and spacing is consistent; The spacing when each several part that spirality bending is formed is arranged according to " concentric circles " is identical.
If the length long enough in constant temperature portion, because the temperature of optional position, constant temperature portion is identical, in the more large-area heat exchange layer that constant temperature portion bends formation repeatedly, the temperature of optional position is also identical, and this structure can realize the uniform application demand of large area heat exchange layer temperature altitude in another way.
Further, constant temperature heat exchange mechanisms also comprises:
Heat exchange element, for applying heat to heat transferring medium or absorbing heat from heat transferring medium, realizes intensification or the cooling of heat transferring medium, keeps the temperature constant of heat transferring medium;
Controller, for controlling heat exchange element work;
Temperature sensor, for detecting the temperature signal of heat transferring medium in thermostatic tank, and sends temperature signal to controller.
During work, the temperature signal that controller is carried according to temperature sensor controls heat exchange element work, makes the temperature of heat transferring medium draw close to design temperature and keep temperature constant.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of constant temperature heat exchange mechanisms embodiment 1 of the present invention;
Fig. 2 is the structural representation of constant temperature heat exchange mechanisms embodiment 2 of the present invention;
Fig. 3 is the structural representation of constant temperature heat exchange mechanisms embodiment 3 of the present invention;
Fig. 4 is the structural representation of insulating box;
Fig. 5 is the structural representation of the insulating box with heat exchange dividing plate;
Fig. 6 is the structural representation in room
Fig. 7 is the structural representation of constant temperature heat exchange mechanisms embodiment 4 of the present invention.
In figure, each Reference numeral is:
1, circulating pump, 2, liquid outlet, 3, temperature sensor, 4, controller, 5, heater, 6, refrigerating plant, 7, heat transferring medium, 8, thermostatic tank, 9, liquid return hole, 10, the outlet of heat exchanger tube, 11, the import of heat exchanger tube, 12, kink, 13, constant temperature portion, 14, heat exchanger tube, 15, return liquid house steward, 16, fluid house steward, 17, return the outlet of liquid house steward, 18, the import of fluid house steward, 19, thermostatic box, 20, the sidewall of thermostatic box, 21, heat exchange dividing plate, 22, room, 23, the bottom surface in room, 24, the sidewall in room, 25, the end face in room, 26, divide temperature controller.
Detailed description of the invention:
Below in conjunction with each accompanying drawing, the present invention is described in detail.
Embodiment 1
As shown in Figure 1, a kind of constant temperature heat exchange mechanisms, comprise the thermostatic tank 8 for holding heat transferring medium 7, thermostatic tank 8 has liquid outlet 2 and liquid return hole 9, also comprise at least one heat exchanger tube 14, heat exchanger tube 14 has import 11 and an outlet 10, and the import 11 of heat exchanger tube is communicated with the liquid outlet 2 of thermostatic tank, and the outlet 10 of heat exchanger tube is communicated with the liquid return hole 9 of thermostatic tank; Bend in the middle part of heat exchanger tube 14, form two kinks, 12, two kinks 12 and mutually draw close and guarantee abundant heat transfer, overall formation constant temperature portion 13.
In the present embodiment, heat exchanger tube 14 everywhere material, density, wall thickness and internal diameter is identical.
Constant temperature heat exchange mechanisms also comprises:
Heat exchange element, for applying heat to heat transferring medium 7 or absorbing heat from heat transferring medium, realizes intensification or the cooling of heat transferring medium 7, keeps the temperature constant of heat transferring medium 7;
Controller 4, for controlling heat exchange element work;
Temperature sensor 3, for detecting the temperature signal of heat transferring medium 7 in thermostatic tank 8, and sends temperature signal to controller 4.
Circulating pump 1, for sending into heat transferring medium 7 in heat exchanger tube 14.
During work, the temperature signal that controller is carried according to temperature sensor controls heat exchange element work, and the temperature of heat transferring medium is drawn close to design temperature.
In the present embodiment, heat exchange element comprises heater 5 and refrigerating plant 6, and constant temperature heat exchange mechanisms both can heat also can freeze.When practice, can only adopt heater 5 according to the needs of control temperature or only adopt refrigerating plant 6.
In the present embodiment, heater 5 can be geothermal source, hydro-thermal source or air can heat exchanger, the condenser of geothermal source, hydro-thermal source or air energy heat pump, or be resistance heater, refrigerating plant 6 can be the evaporimeter of geothermal source, hydro-thermal source or air energy refrigerating plant.
In practical application, can using geothermal source or hydro-thermal source directly as low-temperature receiver or thermal source, namely by the water circulation direct heat transfer between heat exchanger and low-temperature receiver or thermal source, and without the need to being realized heating, cooling and constant temperature by the power consumption of refrigerating plant, thus energy consumption and noise is reduced.This application is applicable to conditioning in Transition Season or the area of environmental condition gentleness in spring and autumn, the area that rock-soil layer temperature is high especially or low especially, or the water resource that water temperature is high especially or low especially can utilize area, the such as downstream etc. of hot spring, water-power plant, even high-low temperature waste water discharges the occasion that can recycle.
In practical application, can using air energy directly as low-temperature receiver or thermal source, namely by the water circulation direct heat transfer between heat exchanger and low-temperature receiver or thermal source, and without the need to being realized heating, cooling and constant temperature by the power consumption of refrigerating plant, thus reduce energy consumption and noise, this application is applicable to there is localized hyperthermia or low-temperature air energy resource, and even high temperature or low temperature waste gas discharge the occasion that can recycle.
Adopt geothermal source as the thermal source of heat pump or low-temperature receiver, with employing air can compared with, operational efficiency improves more than 40%, saves operating cost 50 ~ 70%.And in the buried underground of the key components and parts of geothermal-source heat pump or installation room, avoid outdoor harsh weather impact, its under ground portion can be guaranteed 50 years, and aerial part can be guaranteed 30 years, and system maintenance cost very reduces.
The operation principle of the present embodiment is as follows: at heat exchanger tube material everywhere, density, under wall thickness and the identical prerequisite of internal diameter, the heat transferring medium of heat exchanger tube and its internal flow, because the existence of heat exchange, the temperature of heat exchanger tube and heat transferring medium can along the direction even variation of its flowing, this characteristic makes two kinks be bent to form in the middle part of heat exchanger tube mutually draw close and after guaranteeing fully heat transfer, two high temperature of one, any corresponding position of kink temperature are low, by fully heat transfer and temperature complementation, thus guarantee that the temperature of optional position, constant temperature portion is identical.Total length as heat exchanger tube is 20m, and inlet temperature is 22 DEG C, and outlet is 18 DEG C, can be understood as the every flow progresses 1m of heat transferring medium, temperature drops to (22-18) DEG C/and 20m=0.2 DEG C/m.By heat exchanger tube in the bending of 10m place, then two of heat exchanger tube kinks mutually to be drawn close and made it fully conduct heat, the temperature of constant temperature portion in heat exchanger tube bending place is 22 DEG C-(0.2 DEG C/m × 10m)=20 DEG C.In like manner, the kink temperature leaving 5m place, heat exchanger tube import 11 position is 22 DEG C-(0.2 DEG C/m × 5m)=21 DEG C, to leave kink temperature that heat exchanger tube exports 10 5m places, position be 22 DEG C-(0.2 DEG C/m × 15m)=19 DEG C, and constant temperature portion exports the temperature at 10 5m places, position and 5m place, import 11 position for (19 DEG C+21 DEG C)/2=20 DEG C leaving heat exchanger tube.Thus can inference, the temperature of any position, constant temperature portion is 20 DEG C.
When practice, in order to enlarged-area, constant temperature portion can be very long, and in order to better utilization, as required, constant temperature portion can be bent into arbitrary shape, and prerequisite is that the shape of this bending can be decomposed into identical and recursive fraction.
First the present embodiment is heated by thermostatic tank or cooling heat transferring medium make it reach temperature stabilization, then realize carrying out heat exchange with target environment by the flowing of heat transferring medium in heat exchanger tube, the thermostatically controlled mode of this secondary, fluctuation degree can be effectively improved, but significantly the uniformity can not be improved.In the application, it is in order to ensure abundant heat transfer that two kinks are drawn close mutually, two kink entirety of mutually drawing close form constant temperature portion, the temperature averages of two any correspondence positions of kink is all identical, after regarding an entirety as by constant temperature portion, in constant temperature portion, the temperature of optional position is all identical, and this version significantly can improve the uniformity of Temperature Distribution.
In conjunction with secondary thermostatic control and constant temperature portion, can ensure that constant temperature heat exchange mechanisms has lower fluctuation degree, there is good uniformity simultaneously.
Embodiment 2
As shown in Figure 2, disclose a kind of constant temperature heat exchange mechanisms, this enforcement is with the difference of embodiment 1: heat exchanger tube has many, and the constant temperature portion of each heat exchanger tube equidistantly arranges each other, and each heat exchanger tube everywhere material, density, wall thickness and internal diameter is identical; Constant temperature heat exchange mechanisms also comprises the fluid house steward 16 be communicated with the liquid outlet 2 of thermostatic tank, and time liquid house steward 15 be communicated with the liquid return hole 9 of thermostatic tank.In the present embodiment, the import 18 of fluid house steward is communicated with liquid outlet 2, the sidewall of fluid house steward and the inlet communication of each heat exchanger tube 14; The outlet 17 of returning liquid house steward is communicated with liquid return hole 9, returns the sidewall of liquid house steward and the outlet of each heat exchanger tube 14; And the import of each heat exchanger tube is all communicated with fluid house steward, the outlet of each heat exchanger tube is all communicated with time liquid house steward; The constant temperature portion of each heat exchanger tube equidistantly arranges each other and forms the larger heat exchange layer of heat exchange area.
As shown in Figure 2, in the present embodiment, heat transferring medium is identical with the flow direction of fluid house steward 16 time liquid house steward 15.Such setting can eliminate the thermograde impact because heat exchanger tube 14, time liquid house steward 15 and fluid house steward 16 flow resistance cause, the thermograde that further reduction parallel connection causes and unevenness.Assuming that the length of returning liquid house steward 15 and fluid house steward 16 is respectively L, its flow resistance is FR, the heat exchanger tube be connected with fluid house steward 16 entrance 18, and its flow resistance is FR
16+ FR
14; Export 17 heat exchanger tubes be connected with time liquid house steward 15, its flow resistance is FR
15+ FR
14; At the heat exchanger tube of position a, its flow resistance is (a/L) FR
16+ ((L-a)/L) FR
15+ FR
14.The heat exchanger tube 14 be connected in parallel assuming that all, its material, density, wall thickness and internal diameter are identical, assuming that return liquid house steward 15 and fluid house steward 16, its material, density, wall thickness and internal diameter are identical, according to above formula, all heat exchanger tubes be connected in parallel, the heat exchanger tube flow resistance of optional position is identical, and the thermograde caused due to flow resistance can be eliminated.In the present embodiment, the import of each heat exchanger tube is all communicated with fluid house steward, outlet is all communicated with time liquid house steward, this structure infinitely can increase the heat exchange area of heat exchange mechanisms, guaranteeing fluid house steward 16 and returning between liquid house steward 15, between the heat exchanger tube 14 be respectively connected in parallel, its material, density, wall thickness and internal diameter identical time, can guarantee that the temperature of the optional position, constant temperature portion be respectively connected in parallel is substantially identical, the heat exchange layer of the heat exchanger tube formation of structure like this, the temperature of its optional position is substantially identical, achieve the uniform application demand of large area heat exchange layer temperature altitude.
Embodiment 3
As shown in Figure 3, disclose a kind of constant temperature heat exchange mechanisms, the difference of the present embodiment and embodiment 1 is: constant temperature portion bends repeatedly, forms zigzag, continuous S-shaped or spirality, and the constant temperature portion after bending forms heat exchange layer.In the present embodiment, in order to ensure the better uniformity, when constant temperature portion is according to zigzag or continuous S-shaped bending, " Z " shape of each repeating part or serpentine are answered identical and spacing is consistent; The spacing when each several part that spirality bending is formed is arranged according to " concentric circles " is identical.
If the length long enough in constant temperature portion, because the temperature of optional position, constant temperature portion is identical, in the more large-area heat exchange layer that constant temperature portion bends formation repeatedly, the temperature of optional position is also identical, and this structure can realize the uniform application demand of large area heat exchange layer temperature altitude in another way.
The said spirality of the present embodiment is similar to the version of mosquito-repellent incense, no matter constant temperature portion is bent into zigzag, continuous S-shaped, spirality even other any shapes, its main purpose is to increase heat exchange area, but the shape that prerequisite is this bending can be decomposed into identical and recursive fraction, uniform layout should not affect the distribution of temperature.
Embodiment 4
As described in Figure 7, disclose a kind of constant temperature heat exchange mechanisms, the present embodiment is similar to Example 2, and constant temperature heat exchange mechanisms has many heat exchanger tubes.Constant temperature heat exchange mechanisms also comprises the fluid house steward 16 be communicated with the liquid outlet 2 of thermostatic tank, and time liquid house steward 15 be communicated with the liquid return hole 9 of thermostatic tank, and the import 18 of fluid house steward is communicated with liquid outlet 2, the sidewall of fluid house steward and the inlet communication of each heat exchanger tube 14; The outlet 17 of returning liquid house steward is communicated with liquid return hole 9, returns the sidewall of liquid house steward and the outlet of each heat exchanger tube 14; And the import 11 of each heat exchanger tube is all communicated with fluid house steward 16, the outlet 10 of each heat exchanger tube is all communicated with time liquid house steward 15.
In order to ensure the uniformity, in the present embodiment, the heat exchanger tube be respectively connected in parallel, the total length in its constant temperature portion is identical; The import of each heat exchanger tube is connected with fluid house steward, the outlet of each heat exchanger tube with return liquid house steward and be connected, the spacing between the heat exchanger tube be respectively connected in parallel and material thereof, density, wall thickness are identical with internal diameter; Heat transferring medium returning liquid house steward 15 and the flow direction in fluid house steward 16 and material thereof, density, wall thickness are identical with internal diameter.
The constant temperature portion 13 of each heat exchanger tube can be bent into various shape, and in the present embodiment, heat exchanger tube has 3, is bent into said zigzag, continuous S-shaped and spirality in embodiment 3 respectively.The total length in the constant temperature portion of the said each heat exchanger tube of the present embodiment is identical, and before referring to the bending of each constant temperature portion, the length of (zigzag, continuous S-shaped and spirality are stretching) is identical.
In practical application, at the heat exchanger tube guaranteeing respectively to be connected in parallel, the total length in its constant temperature portion is identical; The import of each heat exchanger tube is connected with fluid house steward, the outlet of each heat exchanger tube with return liquid house steward and be connected, the spacing between the heat exchanger tube be respectively connected in parallel and material thereof, density, wall thickness are identical with internal diameter; Heat transferring medium is under the flow direction returned in liquid house steward 15 and fluid house steward 16 and the identical prerequisite of material, density, wall thickness and internal diameter thereof, the quantity of heat exchanger tube can be individual arbitrarily, the constant temperature portion of each heat exchanger tube can not bend, if or the bending shape in constant temperature portion, quantity and layout do not affect the distribution of temperature, arbitrary shape can be bent into as required.
When practice, when heat exchange area is king-sized time, each heat exchanger tube can be distinguished alone to a space heat exchange, heat exchanger entrance position can increase point temperature controller 26, by controlling the flow of heat transferring medium in heat exchanger tube in parallel arbitrarily, the temperature realizing any space controls, thus the temperature uniformity under realizing condition of different temperatures, meet different application demands, such as in summer, the hall that flow of personnel density is large may need lower temperature to adapt to more heat demand, room holds at most the rest of 1-2 people, the temperature of constant temperature can be suitably higher.Further, this point of temperature controller can also be finely tuned because system infinitely expands the thermograde of existence, revises temperature error, improves temperature uniformity further.
Embodiment 5
As shown in Figure 4, a kind of insulating box, comprise thermostatic box 19, also comprise the constant temperature heat exchange mechanisms described by embodiment 1,2,3 or 4, in the present embodiment, the heat exchanger tube of constant temperature heat exchange mechanisms is arranged on the sidewall 20 of thermostatic box, in the present embodiment, the sidewall 20 of thermostatic box does not limit concrete orientation, as shown in Figure 4, when thermostatic box inner space is cuboid, the sidewall 20 of thermostatic box can be the one or more of six sidewalls in front and back up and down.Heat exchanger tube is arranged on the sidewall of thermostatic box, and increase heat exchange area to greatest extent by parallel join or the mode that repeatedly bends, make the sidewall of thermostatic box that the minimum possibility heat transferring medium of temperature difference and the heat exchanger tube of maximum possible heat transfer area can be used to carry out heat exchange, the uniformity of constant temperature the temperature inside the box is improved to greatest extent.
As shown in Figure 5, except being arranged on the sidewall 20 of thermostatic box by the heat exchanger tube of constant temperature heat exchange mechanisms, in thermostatic box 19, several heat exchange dividing plates 21 can also be set.Heat exchanger tube is arranged in heat exchange dividing plate, and increase heat exchange area to greatest extent by being connected in parallel or repeatedly bending mode, make heat exchange dividing plate that the minimum possibility heat exchange medium temperature of temperature difference and the heat exchanger tube of maximum possible heat transfer area can be used to carry out heat exchange, the uniformity of constant temperature the temperature inside the box is improved to greatest extent.Heat exchange dividing plate 21 can be one or uniformly at intervals multiple, the heat exchange dividing plate of multiple equidistant layout, the vertical range between adjacent two dividing plates can be reduced by the quantity increasing heat exchange dividing plate, the Vertical Uniform degree of temperature improves further, does not even need to use forced ventilation just can reach the desirable uniformity.
When practice, the heat exchanger tube of constant temperature heat exchange mechanisms can be arranged in thermostatic box sidewall as required, or is arranged in heat exchange dividing plate, in the sidewall that simultaneously can also be arranged on thermostatic box and heat exchange dividing plate.
During practice, the insulating box of the present embodiment can be used as high evenness and high-precision refrigerator or refrigerating box, also can be used as high evenness and high-precision high-temperature test chamber, low-temperature test chamber or high-low temperature test chamber etc.Pharmacy, the chemicals in food and cosmetics field and the stability study of preparation thereof and storage can be used as, the test of the plant growth of life science, tissue and microorganism is cultivated, seed germination experiment, insect and toy is raised and the environmental safety evaluation etc. of chemical pesticide.
Embodiment 6
A kind of room temperature adjusting device, comprises the said constant temperature heat exchange mechanisms of embodiment 1,2,3 or 4; As shown in Figure 6, constant temperature air conditioning is for regulating the temperature in room 22, the heat exchanger tube of constant temperature heat exchange mechanisms can be embedded on the end face 25 in room, bottom surface 23 or sidewall 24, the said room 22 of the present embodiment can be office space, exhibition room or museum, hotel lobby and guest room, unit room or single villa, also can be the laboratory in the fields such as pharmacy, chemical industry, biology, food or cosmetics or warehouse.
This version of room temperature adjusting device, by the constant temperature heat exchange mechanisms of large area and Low Temperature Difference, uniform temperature can be realized without the need to forced ventilation circulation to control, there is not strong blowing feeling or ventilation noise that forced ventilation brings, there will not be the situation that local temperature is too high or too low, meet high-comfort with high evenness, high-precision thermostatic control requirement.
The application of the room temperature adjusting device of the present embodiment comprises the comfort air conditioning system of office and household, pharmacy, the chemicals in food and cosmetics field and the stability study of preparation thereof and storage, plant growth test, the tissue of life science and microorganism is cultivated, seed germination experiment, insect and toy is raised and the environmental safety evaluation of chemical pesticide, medical treatment and the clean operating room of electronic applications, Biological Pure Laboratory, dust proof workshop and clean room, the mechanical model laboratory etc. in frozen soil engineering field.
Concrete, the room temperature adjusting device of the present embodiment can be applied to:
One, office home comfort environment;
Two, the stability study of the specifications such as GMP, GLP, GSP and the storage condition that keeps sample is met;
Three, bio-artificial climatic environment;
Four, clean artificial environment;
Five, frozen soil mechanics model low temperature environment.
The object of above-mentioned 5 large applications is not quite similar, suitable heat transferring medium, heater and refrigerating plant is adopted according to actual conditions during utilization, according to the form of the length in actual conditions determination constant temperature portion, quantity in parallel and bending, thus the application demand of high accuracy and high evenness under realizing condition of different temperatures.
The constant temperature air conditioning of the present embodiment can carry out thermostatic control to room, constant temperature air conditioning is because adopt the said constant temperature heat exchange mechanisms of embodiment 1,2,3 or 4, so uniform heat energy or cold energy can be provided, when heat exchanger tube is interspersed among uniformly the end face in room, sidewall or bottom surface time, homogeneous temperature in room, soft peace and quiet, do not have noise and the air agitation of traditional air conditioner, comfort level is high; And the heat storage performance of heat exchange layer entirety of heat exchanger tube composition is far superior to the traditional air conditioner of being conducted heat by air, and uniform Temperature Distribution can be realized without the need to the ventilation circulation system of traditional air conditioner and forced air convection, the variations in temperature brought of having a power failure within several hours is almost negligible on the impact of comfort level, especially be applicable to office household and the test period long, the storehouse that bulk density is large; Be applicable to tissue cultures, insect and toy raised, the environmental impact assessment of chemical pesticide etc. is gentle to heat demand, humidity and the less demanding application scenario of irradiation level.
And when constant temperature heat exchange mechanisms adopts geothermal source, hydro-thermal source as thermal source or low-temperature receiver, temperature affects by climatic factors such as four seasons transition and wind and frost sleets hardly, and temperature stability is far superior to air energy air conditioner system.
The foregoing is only the preferred embodiments of the present invention; not thereby scope of patent protection of the present invention is namely limited; the equivalent structure transformation that every utilization description of the present invention and accompanying drawing content are done; directly or indirectly be used in the technical field that other are relevant, be all in like manner included in protection scope of the present invention.
Claims (10)
1. a constant temperature heat exchange mechanisms, comprise the thermostatic tank for holding heat transferring medium, described thermostatic tank has liquid outlet and liquid return hole, it is characterized in that, also comprise at least one heat exchanger tube, described heat exchanger tube has an import and an outlet, and the import of heat exchanger tube is communicated with the liquid outlet of thermostatic tank, and the outlet of heat exchanger tube is communicated with the liquid return hole of thermostatic tank; Bend in the middle part of heat exchanger tube, form two kinks, two kinks are drawn close mutually, overall formation constant temperature portion; Described constant temperature heat exchange mechanisms also comprises the circulating pump for being sent into by heat transferring medium in heat exchanger tube.
2. constant temperature heat exchange mechanisms as claimed in claim 1, is characterized in that, also comprise the fluid house steward be communicated with thermostatic tank liquid outlet, and time liquid house steward be communicated with thermostatic tank liquid return hole; Described heat exchanger tube has many, and the import of each heat exchanger tube is all communicated with described fluid house steward, and the outlet of each heat exchanger tube is all communicated with described time liquid house steward; The constant temperature portion of each heat exchanger tube equidistantly arranges each other and forms heat exchange layer.
3. constant temperature heat exchange mechanisms as claimed in claim 1, it is characterized in that, described constant temperature portion bends repeatedly, forms zigzag, continuous S-shaped or spirality, and the constant temperature portion after bending forms heat exchange layer.
4. constant temperature heat exchange mechanisms as claimed in claim 1, is characterized in that, also comprise:
Heat exchange element, for applying heat to heat transferring medium or absorbing heat from heat transferring medium, realizes intensification or the cooling of heat transferring medium, keeps the temperature constant of heat transferring medium;
Controller, for controlling heat exchange element work;
Temperature sensor, for detecting the temperature signal of heat transferring medium in thermostatic tank, and sends temperature signal to controller.
5. constant temperature heat exchange mechanisms as claimed in claim 4, it is characterized in that, described heat exchange element is heater, and described heater is geothermal source, hydro-thermal source or air energy heat exchanger, the condenser of geothermal source, hydro-thermal source or air energy heat pump, or resistance heater.
6. constant temperature heat exchange mechanisms as claimed in claim 4, it is characterized in that, described heat exchange element is refrigerating plant, and described refrigerating plant is geothermal source, hydro-thermal source or air energy heat exchanger, or is the evaporimeter of geothermal source, hydro-thermal source or air energy heat pump.
7. an insulating box, comprises thermostatic box, it is characterized in that, also comprises the constant temperature heat exchange mechanisms described in claim 1 ~ 6 any one claim, and the heat exchanger tube of described constant temperature heat exchange mechanisms is arranged on the sidewall of described thermostatic box.
8. an insulating box, comprises thermostatic box, it is characterized in that, also comprises the heat exchange dividing plate be arranged in thermostatic box, and the constant temperature heat exchange mechanisms described in claim 1 ~ 6 any one claim; The heat exchanger tube of described constant temperature heat exchange mechanisms is arranged in corresponding heat exchange dividing plate.
9. insulating box as claimed in claim 8, is characterized in that, described heat exchange dividing plate is one or uniformly at intervals multiple.
10. a room temperature adjusting device, is characterized in that, comprises the constant temperature heat exchange mechanisms described in claim 1 ~ 6 any one claim; The heat exchanger tube of described constant temperature heat exchange mechanisms is embedded on the end face in room, bottom surface or sidewall.
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