The method of temperature control of combined cooling and heating installation

 

(57) Abstract:

The invention relates to refrigeration and heating technology and can be used in storage technology and manufacturing different kinds of products and substances in industrial and domestic refrigeration and heating plants. The method of temperature control of combined cooling and heating unit, wherein thermally wardrobe set on the border of two external environments with different temperature settings, perform the passive mode of heat transfer for temperature stabilization within thermally Cabinet by providing heat exchange through the walls of its body with outer space or the atmosphere, characterized in that additionally provide adjustable heat transfer through the walls of its body with an inner room in the passive mode and the active mode of heat transfer is performed with the use of the corresponding reversible or irreversible temperature of the unit, with the transition from a passive mode of heat transfer to active and Vice versa, as well as regulation of heat transfer in passive mode is carried out in dependence on results of the comparison of the temperatures involved in the heat exchange environments - external Kafa (tinand preassigned values of the temperature of the internal volume of thermally Cabinet (tC). The technical result from the use of the invention is to improve the functionality of ensuring the efficiency of power consumption. 5 C.p. f-crystals, 2 Il.

The invention relates to refrigeration and heating technology and can find application in storage technology and manufacturing different kinds of products and substances in industrial and domestic refrigeration and heating plants.

There is a method of temperature control of the refrigeration unit, which stabilize the beforehand set temperature inside the cooled Cabinet through the implementation of active-mode heat transfer using the appropriate Executive temperature unit [1].

The obstacles to achieve the desired technical result is that the known method is characterized by relatively high power consumption, because despite the presence, in addition to the primary circuit, the second cooling loop providing interaction thermostatted enclosure Cabinet with the environment, it, first, is forced, and in the ten the method of temperature control of combined cooling and heating unit, wherein thermally wardrobe set on the border of two external environments with different temperature settings, perform the passive mode of heat transfer for temperature stabilization within thermally Cabinet by providing heat exchange through the walls of its body with outer space or the atmosphere [2] is a prototype.

The obstacles to achieve the desired technical result is that the known method has a low functionality, first, the control range of pre-specified temperature internal volume of thermally Cabinet, secondly, for use in cooling mode with high average temperatures involved in the heat exchange media, and in heating mode - at low temperatures. In addition, the known method does not allow for the use of the difference of thermal potentials outside and inside the premises.

The aim of the invention is to improve the functionality of the method of temperature control cooling and heating unit to ensure efficiency of power consumption.

This goal is achieved by the fact that thermally wardrobe set n is at stabilization temperature within thermally Cabinet by providing heat exchange through the walls of its body with outer space or the atmosphere, and additionally provide adjustable heat transfer through the walls of its body with an inner room in the passive mode and the active mode of heat transfer is performed with the use of the corresponding reversible (for example, thermoelectric battery) or irreversible (e.g., compression) of the Executive temperature of the unit, the choice of the mode of heat transfer is carried out in dependence on results of the comparison of the values of the temperatures involved in the heat exchange media - outer space or the atmosphere (tn), the interior (tp), the internal volume of thermally Cabinet (tin) given preassigned values of the temperature of the internal volume of thermally Cabinet (tC).

Passive cooling mode or heating is carried out at a pre-specified value of the temperature of the internal volume of thermally Cabinet (tC) within a defined range - minimum and maximum values of the temperatures involved in heat transfer of external environments (tnand tptmaxtCtmin.

The transition from a passive mode of heat transfer to active and Vice versa when cooling or heating osushestvlyaem average temperature involved in heat transfer of external environments (tcf), taking into account the actual value of the temperature of the internal volume of thermally Cabinet (tin).

The transition from a passive mode of heat transfer to active and Vice versa is carried out at a pre-specified value of the temperature of the internal volume of thermally Cabinet (tC) within a defined temperature range, cooling - low temperature one of the external environments (tmin) and average temperature (tcf) participating in the heat exchange of the external environments tmintCtcfand when heated - the maximum temperature of the one of the external environments (tmax) and average temperature (tcf) participating in the heat exchange of the external environments tmaxtCtcfwith regard to the actual value of the temperature of the internal volume of thermally Cabinet (tin).

Regulation of heat transfer in passive mode is carried out by changing the value of thermal conductivity of the wall cooled Cabinet located in different temperature environments using passive funds - discretely, and with the use of active funds - continuously or discretely.

Also regulated is emeniem correlation of parts, with adjustable or non-adjustable conductivity, the area of the outer surface of thermally Cabinet, in different temperature environments (tnand tp), by relative displacement of thermostatted enclosure Cabinet and the boundaries separating the external environment of outer space or the atmosphere and the interior.

Conducted by the applicant's analysis of the prior art, including searching by the patent and scientific and technical information sources and identify sources that contain information about the analogues of way, has allowed to establish that the applicant is not found counterparts, identical to all the essential features of the process, and the definition of a unique prototype allowed us to identify a set of essential towards the technical result of the distinctive features of the claimed method.

Therefore, the claimed method meets the requirement of "novelty" by applicable law.

To check compliance with the requirement of inventive step, the applicant conducted an additional search of technical solutions in order to identify characteristics that match the distinctive features of the selected prototype, the results of which show that announced the) the facility complies with the requirement of "inventive step".

In Fig. 1 presents an example of a device illustrating the implementation of the proposed method, in which the regulation of heat transfer in passive mode by using dampers (blinds).

In Fig. 2 presents an example of a device illustrating the implementation of the proposed method, in which the regulation of heat transfer in passive mode is made via a flexible sealed covers.

In General the device comprises a thermally Cabinet 1, is installed in the recess of a wall or window opening of a building 2 location of its heat-conducting walls 3 in environments with different temperature settings - in outer space or the atmosphere and the inner room of the building.

Executive temperature unit 4 mounted on the casing of thermally Cabinet 1, for example from the outside, provided with appropriately located (inside and outside of it, according to the selected operation mode is the heating or cooling) heating 5 and cooler 6 batteries, respectively.

The tool changes the values of thermal conductivity 7 of the wall 3 of thermally Cabinet 1 can be made, the Yes to change their position, supplied index reading device for registering the position of the flaps or movable fittings flexible sealed enclosures for calibration of the scale 9, located on thermostatted enclosure Cabinet 1.

The operation of the device (Fig.1 and 2) clarifying the implementation of the method of temperature control, as follows.

The choice of mode of heat transfer and its regulation are carried out on the comparison of the temperatures involved in the heat exchange media - outer space or the atmosphere (tn), the interior (tp), the internal volume of thermally Cabinet (tinand preassigned values of the temperature of the internal volume of thermally Cabinet (tC).

So, when the temperatures of the external environments of outer space or the atmosphere (tn) and the interior (tin), for example tminand tmaxaccordingly, more or less pre-specified temperature internal volume of thermally Cabinet (tCtmaxtmintCor tmintmaxtC- are active modes of operation when cooling or heating, respectively, with the inclusion of Executive temperature agreg the premises or of the atmosphere and the interior depending on the selected mode of operation).

Thus, by appropriate means, changes thermal conductivity of 7 (using valves or flexible sealing covers) wall 3 of thermally Cabinet 1 is completely sealed. Further work is carried out with the active regulation mode on the comparison of the pre-specified temperature internal volume of thermally Cabinet tCand actual values of tinone of the known methods (see for example [1]).

In General, the boundary temperature value, determining the need to use active or passive mode of heat transfer during cooling or heating, is the equality of average temperature values of the external environments, given the magnitude of the temperature of the internal volume of thermally Cabinet tcf=tCwhere

< / BR>
Taking into account the permissible deviations of the temperature of the internal volume of thermally Cabinet (dt) from the actual values (tin) specified condition is as follows:

tcf=tCdt.

Then the transition from passive to active and Vice versa carried out under the following condition.

When the value of the pre-specified temperature vnutrennih the cooling - the minimum value of the temperature of one of the external environments (tmin) and average temperature (tp) participating in the heat exchange of the external environments tmintCtcfand during heating maximum temperature one of the external environments (tmax) and average temperature (tcf) participating in the heat exchange of the external environments tmaxtCtcfwith regard to the actual value of the temperature of the internal volume of thermally Cabinet (tin).

Regulation of heat transfer in passive mode is carried out by changing the value of thermal conductivity of the walls 3 of the casing cooled Cabinet 1, located in different temperature environments using passive funds - discretely, and with the use of active funds - continuously or discretely.

Regulation of heat transfer in passive mode provides for two cases.

In the first case, adjustable heat transfer in passive mode is executed under the condition tmaxtCtminand tcftC- when cooled or tcftC- when heated.

In this case, the external environment with the maximum or minimum temperature during cooling and agrirecovery heat transfer due to natural losses through thermal insulation of the body from the external environment with the maximum or minimum temperature, which is considered a valid temperature of the internal volume of thermally Cabinet (tin).

The tool changes thermal conductivity of 7 in this case is used only by the external environment with the minimum or maximum temperature, respectively.

In the second case, adjustable heat transfer in passive cooling mode is executed under the condition tmaxtCtminand tcftCand heating under the condition tmaxtCtminand tcftCrespectively.

In this case, the external environment with the minimum or maximum temperature during cooling and heating, respectively, the conductive surface is sealed, and the tool changes thermal conductivity of 7 is used by the maximum and minimum temperatures, respectively.

Regulation of heat transfer in passive mode by varying thermal conductivity of the walls 3 of the casing cooled Cabinet 1 using the appropriate active or passive means changing the value of thermal conductivity of 7 by a corresponding change in the position of the flaps (Fig.1) or movable sealing flexible sealed enclosures is rpusa cooled Cabinet 1 can be carried out by the appropriate active devices (not shown). Check the position of the flaps or movable sealing is carried out on the location indexes of finite elements 8 located relatively to the body 1 is cooled Cabinet calibration of the scale 9.

In addition, together with the above mentioned treatments or separately regulation of heat exchange as in active and passive modes of operation may optionally be performed by changing the relation of the parts, with adjustable or non-adjustable conductivity, the area of the outer surface of the housing 1 thermostatted Cabinet, in different temperature environments (tnand tp), by relative displacement of thermostatted enclosure Cabinet and the boundaries separating the external environment of outer space or the atmosphere and the interior.

Thus, the above data confirm to the claimed invention, as it is described in the independent claim, the details of its implementation using known means and methods.

Therefore, the claimed method meets the requirement of "industrial applicability" under the current law.

Literature

1. USSR author's certificate N the combined cooling and heating unit, wherein thermally wardrobe set on the border of two external environments with different temperature settings, perform the passive mode of heat transfer for temperature stabilization within thermally Cabinet by providing heat exchange through the walls of its body with outer space or the atmosphere, characterized in that additionally provide adjustable heat transfer through the walls of its body with an inner room in the passive mode and the active mode of heat transfer is performed with the use of the corresponding reversible or irreversible temperature of the unit, the choice of the mode of heat transfer is carried out in dependence on results of the comparison of the values of the temperatures involved in the heat exchange media - outer space or the atmosphere (tn), the interior (tp), the internal volume of thermally Cabinet (tinand preassigned values of the temperature of the internal volume of thermally Cabinet (t3).

2. The method according to p. 1, characterized in that the passive cooling mode or heating is carried out at a pre-specified value of the temperature of the internal volume of thermally Cabinet (t3) within, opred (tnand tptmaxt3tmin.

3. The method according to PP.1 and 2, characterized in that the transition from a passive mode of heat transfer to active and Vice versa when cooling or heating is carried out at a pre-specified value of the temperature of the internal volume of thermally Cabinet (t3) determined an average value of the temperatures involved in heat transfer of external environments (tcf), taking into account the actual value of the temperature of the internal volume of thermally Cabinet (tIN).

4. The method according to PP.1 and 2, characterized in that the transition from a passive mode of heat transfer to active and Vice versa is carried out at a pre-specified value of the temperature of the internal volume of thermally Cabinet (tC) within a defined temperature range, cooling - low temperature one of the external environments (tmin) and average temperature (tcf) participating in the heat exchange of the external environments tmintCtcfand when heated - the maximum temperature of the one of the external environments (tmax) and average temperature (tcf) participating in the heat exchange of the external environments tmaxtCtcfwith regard to GaSb on PP.1 and 2, characterized in that the regulation of heat transfer in passive mode is carried out by changing thermal conductivity of the wall cooled Cabinet located in different temperature environments with the use of passive, discrete, and using active - continuously or discretely.

6. The method according to PP.1 to 5, characterized in that the regulation of heat exchange as in active and passive modes are controlled by changing the relation of the parts with adjustable or non-adjustable conductivity area of the outer surface of thermally Cabinet, in different temperature environments (tnand tp), by relative displacement of thermostatted enclosure Cabinet and the boundaries separating the external environment of outer space or the atmosphere and interior.

 

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