CN115568165A - Constant temperature control device for converter and mounting structure thereof - Google Patents

Abstract

The invention relates to the technical field of temperature control devices, and discloses a constant temperature control device for a converter and its installation structure. The installation structure of the constant temperature control device is used to fix the constant temperature control device. The constant temperature control device includes: a constant temperature box, It is used to install the converter; the heat exchange plate 1 is fixed in the constant temperature box and is attached to the heat dissipation outer wall of the converter; the temperature control component is connected with the heat exchange plate 1 to maintain the converter working temperature; the control system is used to monitor the temperature data, analyze and judge according to the data, and then control the temperature control components to carry out operations; a sealed space is formed in the constant temperature box, and heat exchange components are arranged in the box to exchange heat with the converter, and The temperature rise and heat dissipation are achieved through the temperature control components, and the constant temperature control of the converter is realized, ensuring that the converter is in a relatively constant temperature range, and avoiding the influence of dust and other particles on the converter, which is conducive to lifting the converter work efficiency and service life.

Description

A constant temperature control device for a converter and its installation structure

technical field

The invention belongs to the field of temperature control devices, in particular to a constant temperature control device for a converter and its installation structure.

Background technique

Photovoltaic, that is, photovoltaic power generation system, is a power generation system that uses the photovoltaic effect of semiconductor materials to convert solar radiation energy into electrical energy. The energy of the photovoltaic power generation system comes from the inexhaustible solar energy, which is a clean, safe and renewable energy source. The photovoltaic power generation process does not pollute the environment and does not damage the ecology.

Photovoltaic power generation systems are divided into independent photovoltaic systems and grid-connected photovoltaic systems. Photovoltaic power generation is a technology that directly converts light energy into electrical energy by using the photovoltaic effect at the semiconductor interface. It is mainly composed of three parts: solar panels (components), controllers and converters, and the main components are composed of electronic components. The solar cells are packaged and protected after being connected in series to form a large-area solar cell module, and then cooperate with power controllers and other components to form a photovoltaic power generation device.

Generally, during the installation of photovoltaic power generation equipment, the converter will be installed on the backlight side of the photovoltaic panel. The converter has the best working temperature. When the temperature is too high or too low, the normal operation of the converter will be affected. Affect the efficiency of power generation, and even be damaged in serious cases; but in addition to avoiding exposure to the sun, the converter itself will continue to generate heat during operation, which will cause its own temperature to continue to rise. Poor, it is difficult to fully dissipate heat by itself, and at higher altitudes or in cold winter seasons, the outdoor temperature will drop to a very low level, which is also not conducive to the normal use of the energy storage converter.

The traditional temperature control system generally refers to the heat dissipation of high temperature, and the temperature of the converter is reduced by air cooling. The dust and other particulate pollutants in the outdoor environment are also the key factors that reduce the service life of the converter. The converter is damaged, and it does not have the function of low-temperature heating, so it cannot guarantee that the converter is always at a suitable working temperature.

Contents of the invention

The purpose of the present invention is to provide a constant temperature control device for a converter and its installation structure, so as to solve the technical problem of low working efficiency and service life of the converter in high temperature and severe cold environments.

In order to solve the problems of the technologies described above, the specific technical solutions of the present invention are as follows:

In some embodiments of the present application, a constant temperature control device for a converter and its installation structure are provided, including:

Constant temperature box, used to install the converter;

Heat exchange plate one, fixed in the constant temperature box, and attached to the heat dissipation outer wall of the converter;

A temperature control component, the heat exchange part of which is connected to the heat exchange plate, is used to maintain the working temperature of the converter;

The control system is connected with the temperature control component, and is used to monitor temperature data, analyze and judge according to the data information, and then control the temperature control component to perform operations.

Preferably, in an embodiment of the above-mentioned constant temperature control device for converters, the heat exchange plate 1 is a plate-shaped structure, and a heat exchange chamber 1 is arranged inside, and the two ends of the heat exchange chamber 1 are respectively A liquid inlet and a liquid outlet are provided, and a heat-conducting silicone grease layer is provided on the bonding surface of the heat exchange plate one and the converter.

Preferably, in one embodiment of the above-mentioned constant temperature control device for a converter, the temperature control component includes:

The medium storage tank is arranged on the ground and is filled with heat exchange medium, and its liquid outlet and liquid inlet are respectively connected with the liquid inlet and liquid outlet of the heat exchange plate 1 through the liquid infusion pipeline and the liquid return pipeline, form a loop;

a booster pump, arranged in the medium storage tank, for realizing the heat exchange cycle of the heat exchange medium between the medium storage tank and the heat exchange plate one;

a heating device for heating the infusion line;

The controller is electrically connected to the pressurizing pump and the heating device respectively, and controls the actions of the pressurizing pump and the heating device.

Preferably, in an embodiment of the above-mentioned constant temperature control device for a converter, it further includes a heat exchange plate 2, a heat exchange chamber 2 is provided inside it, and liquid inlets are respectively provided at both ends of the heat exchange chamber 2. mouth and outlet;

The liquid outlet of the heat exchange plate 1 is provided with a tee part 1, the liquid inlet of the tee part 1 is connected to the liquid outlet of the heat exchange plate 1, and one of the liquid outlets is connected to the liquid return line 1 And the medium storage tank is connected through the liquid return line one, and the other liquid outlet is connected with the liquid return line two, and connected with the liquid inlet of the heat exchange plate two through the liquid return line two, so The second liquid return pipeline is connected to the medium storage tank;

Electromagnetic valve 1 is arranged at the liquid inlet of the liquid return line 1 and is electrically connected to the controller;

The second solenoid valve is set at the liquid inlet of the second liquid return line and is electrically connected to the controller;

When the solenoid valve 1 is opened and the solenoid valve 2 is closed, the heat exchange medium flows back into the medium storage tank from the liquid return line 1; when the solenoid valve 2 is opened, the solenoid valve 1 When closed, the heat exchange medium flows back into the medium storage tank after flowing through the heat exchange plate 2 from the liquid return line 2 .

Preferably, in an embodiment of the above-mentioned constant temperature control device for a converter, it further includes:

The first temperature monitoring component is arranged on the heat dissipation component of the converter, is electrically connected to the controller, and is used to monitor the temperature of the heat dissipation component of the converter;

The temperature monitoring component 2 is arranged at the liquid inlet of the heat exchange plate 1 and is electrically connected to the controller, and is used to monitor the temperature of the heat exchange medium flowing into the heat exchange plate 1;

The third temperature monitoring component is arranged at the liquid outlet of the first heat exchange plate, is electrically connected to the controller, and is used to monitor the temperature of the heat exchange medium flowing out of the first heat exchange plate;

The flow rate sensor is arranged at the liquid inlet of the heat exchange plate one and is electrically connected with the controller, and is used to monitor the flow rate of the heat exchange medium flowing into the heat exchange plate one.

Preferably, in one embodiment of the above-mentioned constant temperature control device for a converter, a safe temperature range value is preset in the controller, and when the temperature of the heat dissipation component of the converter is lower than the The minimum value of the safe temperature range value, the controller controls the heating device to work; when the temperature of the heat dissipation component of the converter is between the safe temperature range values, the controller controls the heating device to stop Work;

When the temperature of the heat exchange medium flowing into the heat exchange plate 1 is higher than the temperature of the heat exchange medium flowing out of the heat exchange plate 1, it is determined as a heating operation, and the controller controls the solenoid valve 1 to open , control the solenoid valve two to close, and the heat exchange medium with residual temperature returns directly to the medium storage tank through the liquid return line one; when the heat exchange medium flowing into the heat exchange plate one If the temperature is lower than the temperature of the heat exchange medium flowing out of the heat exchange plate one, it is determined to be a heating operation. The controller controls the solenoid valve two to open and the solenoid valve one to close, and the heat exchange medium passes through The heat exchange plate 2 returns to the medium storage tank through the liquid return pipeline 2 after exchanging heat.

Preferably, in an embodiment of the above-mentioned constant temperature control device for a converter, when controlling the speed of the booster pump according to the high temperature range value of the heat dissipation component of the converter, the variable The high temperature range value A of the flow device, the preset high temperature range value matrix A0, and set A0 (A1, A2, A3, A4), where A1 is the first preset high temperature range value, and A2 is the second preset high temperature range value , A3 is the third preset high temperature range value, A4 is the fourth preset high temperature range value, and A1<A2<A3<A4;

The speed matrix B0 of the preset booster pump, set B0 (B1, B2, B3, B4), where B1 is the speed of the first preset booster pump, B2 is the speed of the second preset booster pump, and B3 is the speed of the third preset booster pump, B4 is the speed of the fourth preset booster pump, and B1<B2<B3<B4;

The speed of the booster pump is set according to the relationship between the high temperature range value A of the load and the speed of each preset booster pump:

When A<A1, select the speed B1 of the first preset pressure pump as the speed of the pressure pump;

When A1≤A<A2, selecting the speed B2 of the second preset pressure pump as the speed of the pressure pump;

When A2≤A<A3, select the speed B3 of the third preset pressure pump as the speed of the pressure pump;

When A3≦A<A4, the rotation speed B4 of the fourth preset pressure pump is selected as the speed of the pressure pump.

Preferably, in an embodiment of the above-mentioned constant temperature control device for a converter, the heating is controlled according to the range value of the temperature difference of the heat exchange medium flowing into and out of the heat exchange plate one. When the speed of the pressure pump is determined, the range value C of the temperature difference of the heat exchange medium is determined, the range value matrix C0 of the temperature difference of the heat exchange medium is preset, and C0 (C1, C2, C3, C4) is set, where C1 is the first One preset range value of the temperature difference of the heat exchange medium, C2 is the range value of the second preset temperature difference of the heat exchange medium, C3 is the range value of the third preset temperature difference of the heat exchange medium, and C4 is the fourth preset range value of the temperature difference of the heat exchange medium Set the range value of the temperature difference of the heat exchange medium, and C1<C2<C3<C4;

The rotation speed matrix D0 of the preset booster pump, set D0 (D1, D2, D3, D4), where D1 is the speed of the first preset booster pump, D2 is the speed of the second preset booster pump, and D3 is the speed of the third preset booster pump, D4 is the speed of the fourth preset booster pump, and D1<D2<D3<D4;

The speed of the booster pump is set according to the relationship between the range value C of the heat exchange medium temperature difference of the load and the speed of each preset booster pump:

When C<C1, select the rotational speed D1 of the first preset pressurization pump as the rotational speed of the pressurization pump;

When C1≤C<C2, select the speed D2 of the second preset pressure pump as the speed of the pressure pump;

When C2≦C<C3, selecting the speed D3 of the third preset pressure pump as the speed of the pressure pump;

When C3≦C<C4, the rotation speed D4 of the fourth preset pressure pump is selected as the speed of the pressure pump.

It can be seen through the above-mentioned technical solution that, compared with the prior art, the beneficial effects of the present invention are:

The sealed structure is adopted to form a sealed space in the constant temperature box, and the heat exchange components are set in the box to exchange heat with the converter, and the temperature rise and heat dissipation are realized through the temperature control component, so as to realize the constant temperature control of the converter and ensure the converter It is in a relatively constant temperature range and avoids the influence of dust and other particles on the converter, which is conducive to improving the working efficiency and service life of the converter.

An installation structure of a constant temperature control device, applied to the above constant temperature control device, comprising:

Fixed base, fixed on the ground;

As for the constant temperature box fixing component, the fixed end of the base is fixed on the top of the fixed base, and the box fixing part is detachably connected with the constant temperature box.

Preferably, in one embodiment of the installation structure of the above-mentioned thermostatic control device, the thermostatic box fixing assembly includes:

There are multiple sets of adjustment legs, which are relatively and vertically fixed on the top installation plane of the fixed base, and each of the adjustment legs is provided with a plurality of corresponding height adjustment holes;

The box body fixing plate is provided with a height adjustment hole 2 corresponding to the height adjustment hole 1 on opposite sides, through which the bolts pass through the height adjustment hole 1 and the height adjustment hole 2 in turn, and the box body fixing plate detachably fixed on the adjustment legs;

The threaded rod clamping mechanism is provided with two groups. One end of the threaded rod clamping mechanism of the two groups is fixed vertically and side by side on one side edge of the box fixing plate, and the other end is rotatably connected with a splint, and the splint is opened. The limit hole is set on the top of the constant temperature box on the limit rod corresponding to the limit hole, the limit plate is sleeved on the outside of the limit rod, and adjusted by the threaded rod clamping mechanism The distance between the splint and the box fixing plate fixes the thermostatic box on the box fixing plate.

It can be seen through the above-mentioned technical solution that, compared with the prior art, the beneficial effects of the present invention are:

Lifting the constant temperature box off the ground can prevent the heat and cold of the ground from directly contacting the box, affecting the constant temperature range in the box, and by adjusting the height, it can also prevent the other photovoltaic panels with higher temperatures from being too close, saving the cost of temperature control Energy, and more convenient installation, strong adaptability.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is a schematic structural diagram provided by an embodiment of the present invention;

Fig. 2 is the schematic diagram of the principle of the constant temperature device provided by the embodiment of the present invention;

Fig. 3 is a control schematic diagram of a thermostat device provided by an embodiment of the present invention.

In the picture:

1. Constant temperature box; 2. Medium storage box; 3. Heating device; 4. Heat exchange plate 2; 5. Liquid return line 1; 6. Liquid return line 2; 7. Solenoid valve 1; 8. Solenoid valve Two; 9. Temperature monitoring part one; 10. Temperature monitoring part two; 11. Temperature monitoring part three; 12. Flow rate sensor; 13. Fixed base; 14. Adjusting legs; 15. Box fixing plate; 16. Plywood ; 17, threaded rod; 18, screw connection tube; 19, limit rod; 20, heat exchange plate one; 21, converter.

detailed description

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

In the description of this application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying References to devices or elements must have a particular orientation, be constructed, and operate in a particular orientation and therefore should not be construed as limiting the application.

The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, unless otherwise specified, "plurality" means two or more.

In the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations.

In order to better understand the purpose, structure and function of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings.

Referring to Figures 1-3, according to some embodiments of the present application, a constant temperature control device for a converter includes:

The constant temperature box 1 is used for installing the converter 21;

The heat exchange plate 120 is fixed in the constant temperature box 1 and attached to the heat dissipation outer wall of the converter 21;

A temperature control assembly, the heat exchange part of which is connected to the heat exchange plate-20, is used to maintain the working temperature of the converter 21;

The control system, connected with the temperature control component, is used to monitor the temperature data, analyze and judge according to the data information, and then control the temperature control component to perform operations.

Specifically, the outside of the constant temperature box 1 can also be covered with a heat insulation layer, which reduces the heat exchange efficiency between the inside and outside of the box, and helps to keep the temperature in the box within a relatively constant range.

In an optimized embodiment of the present application, the heat exchange plate 1 20 is a plate-shaped structure, and a heat exchange chamber 1 is arranged inside, and the two ends of the heat exchange chamber 1 are respectively provided with a liquid inlet and a liquid outlet, and the heat exchange A heat-conducting silicone grease layer is provided on the bonding surface of the board 1 20 and the converter 21 .

Through the above-mentioned technical solution, the beneficial effects achieved by the present application are: the heat exchange plate 20 can be fully bonded to the heat dissipation area of the converter 21, and the heat transfer efficiency can be improved by using the heat-conducting silicone grease layer to ensure the efficiency of temperature control.

In an optimized embodiment of the present application, the temperature control assembly includes:

The medium storage tank 2 is arranged on the ground and is filled with a heat exchange medium, and its liquid outlet and liquid inlet are respectively communicated with the liquid inlet and liquid outlet of the heat exchange plate-20 through the liquid infusion pipeline and the liquid return pipeline, form a loop;

The booster pump is arranged in the medium storage box 2, and is used to realize the heat exchange cycle of the heat exchange medium between the medium storage box 2 and the heat exchange plate-20;

The heating device 3 is used to heat the infusion pipeline;

The controller is electrically connected to the pressurizing pump and the heating device 3 respectively, and controls the actions of the pressurizing pump and the heating device 3 .

Specifically, the heating device 3 is a tube heating device.

Specifically, water can be selected as the heat exchange medium.

Through the above-mentioned technical solution, the beneficial effect achieved by the present application is that: the medium storage box 2 is arranged deep underground, and when the summer is hot, the heat exchange medium in the medium storage box 2 can be guaranteed to be lower than the ground temperature, and the natural temperature Converter 21 cools down without installing cooling equipment, which is beneficial to reduce equipment cost and operating cost; in cold winter, it can ensure that the heat exchange medium in the medium storage box 2 is higher than the ground temperature, and when the heat exchange medium is heated , can reduce heating time and further reduce operating costs.

In an optimized embodiment of the present application, a heat exchange plate 2 4 is also included, a heat exchange chamber 2 is provided inside, and a liquid inlet and a liquid outlet are respectively provided at both ends of the heat exchange chamber 2;

The liquid outlet of the heat exchange plate 120 is provided with a tee part 1, and the liquid inlet of the tee part 1 is connected to the liquid outlet of the heat exchange plate 20, and one of the liquid outlets is connected to the return line 5 and passes through the return line. The liquid pipeline one 5 is connected to the medium storage tank 2, and the other liquid outlet is connected to the liquid return pipeline two 6, and is connected to the liquid inlet of the heat exchange plate two 4 through the liquid return pipeline two 6, and the liquid return pipeline two 6 is connected to media storage box 2;

Solenoid valve 17 is arranged at the liquid inlet of return pipeline 15, and is electrically connected with the controller;

The solenoid valve 2 8 is arranged at the liquid inlet of the liquid return pipeline 2 6 and is electrically connected with the controller;

When the solenoid valve 1 7 is opened and the solenoid valve 2 8 is closed, the heat exchange medium flows back into the medium storage tank 2 from the return line 1 5; when the solenoid valve 2 8 is opened and the solenoid valve 1 7 is closed, the heat exchange medium flows from the return line After the liquid pipeline 2 6 flows through the heat exchange plate 2 4 , the backflow flows into the medium storage tank 2 .

Also includes:

A temperature monitoring component 9 is arranged on the cooling component of the converter 21 and is electrically connected to the controller for monitoring the temperature of the cooling component of the converter 21;

The temperature monitoring part 10 is arranged at the liquid inlet of the heat exchange plate 20, and is electrically connected with the controller, and is used to monitor the temperature of the heat exchange medium flowing into the heat exchange plate 20;

The temperature monitoring part 3 11 is arranged at the liquid outlet of the heat exchange plate 20, and is electrically connected with the controller, and is used to monitor the temperature of the heat exchange medium flowing out of the heat exchange plate 20;

The flow rate sensor 12 is arranged at the liquid inlet of the heat exchange plate 20 and is electrically connected to the controller for monitoring the flow rate of the heat exchange medium flowing into the heat exchange plate 20 .

Specifically, temperature sensors may be used for the first temperature monitoring component, the second temperature monitoring component and the third temperature monitoring component.

The safe temperature range value is preset in the controller, and when the temperature of the cooling part of the converter 21 is lower than the minimum value of the safe temperature range, the controller controls the heating device 3 to work; when the temperature of the cooling part of the converter 21 is within a safe range When the temperature range is between values, the controller controls the heating device 3 to stop working;

When the temperature of the heat exchange medium flowing into the heat exchange plate 20 is higher than the temperature of the heat exchange medium flowing out of the heat exchange plate 20, it is determined as a heating operation, the controller controls the solenoid valve 1 7 to open, and controls the solenoid valve 2 8 to close, with The heat exchange medium with residual temperature returns directly to the medium storage tank 2 through the return line 5; when the temperature of the heat exchange medium flowing into the heat exchange plate 20 is lower than the temperature of the heat exchange medium flowing out of the heat exchange plate 20, it is determined For the heating operation, the controller controls the solenoid valve 2 8 to open and the solenoid valve 1 7 to close. The heat exchange medium returns to the medium storage tank 2 through the return line 2 6 after heat exchange through the heat exchange plate 2 4 .

Through the above-mentioned technical solution, the beneficial effect achieved by the present application is that in the process of raising the temperature of the constant temperature box 1, the heat exchange medium with waste heat can be directly returned to the medium storage box 2 through the adjustment of the liquid return pipeline Inside, gradually increase the temperature of the heat exchange medium in the box to avoid waste of heat; in the process of cooling the constant temperature box 1, through the adjustment of the liquid return pipeline, the heat exchange medium with waste heat passes through the heat exchange plate 2 4 Exchange heat with the earth, lower the temperature of the heat exchange medium, and then return it to the medium storage box 2 to avoid the temperature rise of the heat exchange medium in the box, and make full use of the energy of the geothermal energy, reducing the energy during operation Consumption is conducive to reducing operating and maintenance costs.

In an optimized embodiment of the present application, when controlling the speed of the booster pump according to the high temperature range value of the heat dissipation component of the converter 21, the high temperature range value A of the converter 21 is determined, and the high temperature range value matrix A0 is preset, Set A0(A1, A2, A3, A4), where A1 is the first preset high temperature range value, A2 is the second preset high temperature range value, A3 is the third preset high temperature range value, and A4 is the fourth preset high temperature range value. Set the high temperature range value, and A1<A2<A3<A4;

The speed matrix B0 of the preset booster pump, set B0 (B1, B2, B3, B4), where B1 is the speed of the first preset booster pump, B2 is the speed of the second preset booster pump, and B3 is the speed of the third preset booster pump, B4 is the speed of the fourth preset booster pump, and B1<B2<B3<B4;

Set the speed of the booster pump according to the relationship between the high temperature range value A of the load and the speed of each preset booster pump:

When A<A1, select the speed B1 of the first preset pressure pump as the speed of the pressure pump;

When A1≤A<A2, select the speed B2 of the second preset pressure pump as the speed of the pressure pump;

When A2≤A<A3, select the speed B3 of the third preset pressure pump as the speed of the pressure pump;

When A3≦A<A4, the rotation speed B4 of the fourth preset pressure pump is selected as the speed of the pressure pump.

Through the above-mentioned technical solution, the beneficial effect achieved by the present application is that the speed of the booster pump is adjusted through the high temperature range of the converter 21. When the value of the converter 21 exceeds a reasonable temperature, the faster the speed of the booster pump is, and the heat is improved. The circulation efficiency of the exchange medium, thereby improving the heat exchange efficiency, ensures that the converter 21 can cool down quickly.

In an optimized embodiment of the present application, when controlling the speed of the booster pump according to the range value of the temperature difference of the heat exchange medium flowing into and out of the heat exchange plate 20, the range value C of the temperature difference of the heat exchange medium is determined , the range value matrix C0 of the preset heat exchange medium temperature difference, set C0

(C1, C2, C3, C4), wherein, C1 is the range value of the first preset heat exchange medium temperature difference, C2 is the range value of the second preset heat exchange medium temperature difference, and C3 is the third preset The range value of the temperature difference of the heat exchange medium, C4 is the range value of the fourth preset temperature difference of the heat exchange medium, and C1<C2<C3<C4;

The rotation speed matrix D0 of the preset booster pump, set D0 (D1, D2, D3, D4), where D1 is the speed of the first preset booster pump, D2 is the speed of the second preset booster pump, and D3 is the speed of the third preset booster pump, D4 is the speed of the fourth preset booster pump, and D1<D2<D3<D4;

The speed of the booster pump is set according to the relationship between the range value C of the temperature difference of the heat exchange medium of the load and the speed of each preset booster pump:

When C<C1, select the speed D1 of the first preset pressure pump as the speed of the pressure pump;

When C1≤C<C2, select the speed D2 of the second preset pressure pump as the speed of the pressure pump;

When C2≤C<C3, select the speed D3 of the third preset pressure pump as the speed of the pressure pump;

When C3≦C<C4, the rotation speed D4 of the fourth preset pressure pump is selected as the speed of the pressure pump.

Through the above-mentioned technical solution, the beneficial effect achieved by the present application is that: when the speed of the booster pump is controlled by the range of the temperature difference of the heat exchange medium flowing into and out of the heat exchange plate-20, when the temperature difference is very small, it means The efficiency of heat exchange reaches saturation, and reducing the circulation frequency of heat exchange medium is beneficial to reduce operating costs. When the temperature difference is large, it indicates that there is a large gap in the efficiency of heat exchange. The booster pump speeds up to improve the circulation of heat exchange medium. The frequency is conducive to quickly returning to the suitable working temperature range of the converter 21 to ensure the normal operation of the converter 21 .

An installation structure of a constant temperature control device, applied to the above constant temperature control device, comprising:

Fixed base 13, fixed on the ground;

As for the constant temperature box fixing assembly, the fixed end of the base is fixed on the top of the fixed base 13, and the box fixing part is detachably connected with the constant temperature box 1.

Preferably, in one embodiment of the installation structure of the above-mentioned constant temperature control device, the constant temperature box fixing assembly includes:

The adjustment legs 14 are provided with multiple groups, relatively and vertically fixed on the top installation plane of the fixed base, and each adjustment leg 14 is provided with a plurality of corresponding height adjustment holes;

The box body fixing plate 15 has a height adjustment hole 2 corresponding to the height adjustment hole 1 on opposite sides, and the bolts pass through the height adjustment hole 1 and the height adjustment hole 2 in sequence, and the box body fixing plate 15 is detachably fixed on the adjustment hole. on the outrigger 14;

The threaded rod clamping mechanism is provided with two groups. One end of the two groups of threaded rod clamping mechanisms is fixed vertically and side by side on one side edge of the box fixing plate 15, and the other end is rotatably connected with a splint 16, and a limited hole is opened on the splint 16. , on the top of the constant temperature box 1, the limit rod 19 corresponding to the limit hole is set, the limit plate is sleeved outside the limit rod 19, and the gap between the splint 16 and the box fixing plate 15 is adjusted by the threaded rod clamping mechanism Fix the thermostatic box 1 on the box fixing plate.

Specifically, the threaded rod clamping mechanism includes:

The threaded rod 17 is vertically fixed on the box body fixing plate 15;

Spinning barrel 18 is provided with thread inside, and is screwed with threaded rod 17, and can move up and down along threaded rod 17;

During installation, rotate the rotating barrel 18 to increase the distance between the splint 16 and the box fixing plate, place the thermostatic box 1 on the box fixing plate, reversely rotate the turning barrel 18 to a suitable height, and place the splint 16 to the set On the limit rod 19, continue to rotate the rotating sleeve 18 until the splint 16 clamps the constant temperature box 1 to complete the fixation.

Through the above-mentioned technical solution, the beneficial effects achieved by the present application are: lifting the constant temperature box 1 off the ground can prevent the heat and cold of the ground from directly contacting the box, affecting the constant temperature range in the box, and also avoiding the constant temperature range through height adjustment. The rest of the photovoltaic panels with higher temperature are too close to save the energy used for temperature control, and the installation is more convenient and adaptable.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the related information, please refer to the description of the method part.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A constant temperature control device for a converter, characterized in that it comprises: Constant temperature box, used to install the converter; Heat exchange plate one, fixed in the constant temperature box, and attached to the heat dissipation outer wall of the converter; A temperature control component, the heat exchange part of which is connected to the heat exchange plate, is used to maintain the working temperature of the converter; The control system is connected with the temperature control component, and is used to monitor temperature data, analyze and judge according to the data information, and then control the temperature control component to perform operations. 2. A constant temperature control device for a converter according to claim 1, characterized in that the heat exchange plate 1 is a plate-shaped structure, and a heat exchange chamber 1 is arranged inside it, and the heat exchange chamber 1 The two ends are respectively provided with a liquid inlet and a liquid outlet, and a heat-conducting silicone grease layer is provided on the bonding surface of the heat exchange plate one and the converter. 3. A constant temperature control device for a converter according to claim 2, wherein the temperature control component comprises: The medium storage tank is arranged on the ground and is filled with heat exchange medium, and its liquid outlet and liquid inlet are respectively connected with the liquid inlet and liquid outlet of the heat exchange plate 1 through the liquid infusion pipeline and the liquid return pipeline, form a loop; a booster pump, arranged in the medium storage tank, for realizing the heat exchange cycle of the heat exchange medium between the medium storage tank and the heat exchange plate one; a heating device for heating the infusion line; The controller is electrically connected to the pressurizing pump and the heating device respectively, and controls the actions of the pressurizing pump and the heating device. 4. A constant temperature control device for a converter according to claim 3, characterized in that it also includes a heat exchange plate 2, a heat exchange chamber 2 is arranged inside it, and two ends of the heat exchange chamber 2 are respectively arranged With liquid inlet and outlet; The liquid outlet of the heat exchange plate 1 is provided with a tee part 1, the liquid inlet of the tee part 1 is connected to the liquid outlet of the heat exchange plate 1, and one of the liquid outlets is connected to the liquid return line 1 And the medium storage tank is connected through the liquid return line one, and the other liquid outlet is connected with the liquid return line two, and connected with the liquid inlet of the heat exchange plate two through the liquid return line two, so The second liquid return pipeline is connected to the medium storage tank; Electromagnetic valve 1 is arranged at the liquid inlet of the liquid return line 1 and is electrically connected to the controller; The second solenoid valve is set at the liquid inlet of the second liquid return line and is electrically connected to the controller; When the solenoid valve 1 is opened and the solenoid valve 2 is closed, the heat exchange medium flows back into the medium storage tank from the liquid return line 1; when the solenoid valve 2 is opened, the solenoid valve 1 When closed, the heat exchange medium flows back into the medium storage tank after flowing through the heat exchange plate 2 from the liquid return line 2 . 5. A constant temperature control device for a converter according to claim 4, further comprising: The first temperature monitoring component is arranged on the heat dissipation component of the converter, is electrically connected to the controller, and is used to monitor the temperature of the heat dissipation component of the converter; The temperature monitoring component 2 is arranged at the liquid inlet of the heat exchange plate 1 and is electrically connected to the controller, and is used to monitor the temperature of the heat exchange medium flowing into the heat exchange plate 1; The third temperature monitoring component is arranged at the liquid outlet of the first heat exchange plate, is electrically connected to the controller, and is used to monitor the temperature of the heat exchange medium flowing out of the first heat exchange plate; The flow rate sensor is arranged at the liquid inlet of the heat exchange plate one and is electrically connected with the controller, and is used to monitor the flow rate of the heat exchange medium flowing into the heat exchange plate one. 6 . A constant temperature control device for a converter according to claim 5 , wherein a safe temperature range value is preset in the controller, and when the temperature of the heat dissipation part of the converter is low At the minimum value of the safe temperature range, the controller controls the heating device to work; when the temperature of the heat dissipation component of the converter is between the safe temperature range values, the controller controls the The heating device stops working; When the temperature of the heat exchange medium flowing into the heat exchange plate 1 is higher than the temperature of the heat exchange medium flowing out of the heat exchange plate 1, it is determined as a heating operation, and the controller controls the solenoid valve 1 to open , control the solenoid valve two to close, and the heat exchange medium with residual temperature returns directly to the medium storage tank through the liquid return line one; when the heat exchange medium flowing into the heat exchange plate one If the temperature is lower than the temperature of the heat exchange medium flowing out of the heat exchange plate one, it is determined to be a heating operation. The controller controls the solenoid valve two to open and the solenoid valve one to close, and the heat exchange medium passes through The heat exchange plate 2 returns to the medium storage tank through the liquid return pipeline 2 after exchanging heat. 7. A constant temperature control device for a converter according to claim 6, characterized in that, when controlling the speed of the booster pump according to the high temperature range value of the heat dissipation component of the converter, determine The high temperature range value A of the converter, the preset high temperature range value matrix A0, and set A0(A1, A2, A3, A4), where A1 is the first preset high temperature range value, and A2 is the second preset High temperature range value, A3 is the third preset high temperature range value, A4 is the fourth preset high temperature range value, and A1<A2<A3<A4; The speed matrix B0 of the preset booster pump, set B0 (B1, B2, B3, B4), where B1 is the speed of the first preset booster pump, B2 is the speed of the second preset booster pump, and B3 is the speed of the third preset booster pump, B4 is the speed of the fourth preset booster pump, and B1<B2<B3<B4; The speed of the booster pump is set according to the relationship between the high temperature range value A of the load and the speed of each preset booster pump: When A<A1, select the speed B1 of the first preset pressure pump as the speed of the pressure pump; When A1≤A<A2, selecting the speed B2 of the second preset pressure pump as the speed of the pressure pump; When A2≤A<A3, select the speed B3 of the third preset pressure pump as the speed of the pressure pump; When A3≦A<A4, the rotation speed B4 of the fourth preset pressure pump is selected as the speed of the pressure pump. 8. A constant temperature control device for a converter according to claim 7, characterized in that, it is controlled according to the range value of the temperature difference of the heat exchange medium flowing into and out of the heat exchange plate one. When the speed of the booster pump is determined, the range value C of the temperature difference of the heat exchange medium is determined, the range value matrix C0 of the temperature difference of the heat exchange medium is preset, and C0 (C1, C2, C3, C4) is set, wherein, C1 is the range value of the first preset heat exchange medium temperature difference, C2 is the range value of the second preset heat exchange medium temperature difference, C3 is the range value of the third preset heat exchange medium temperature difference, and C4 is The range value of the fourth preset heat exchange medium temperature difference, and C1<C2<C3<C4; The rotation speed matrix D0 of the preset booster pump, set D0 (D1, D2, D3, D4), where D1 is the speed of the first preset booster pump, D2 is the speed of the second preset booster pump, and D3 is the speed of the third preset booster pump, D4 is the speed of the fourth preset booster pump, and D1<D2<D3<D4; The speed of the booster pump is set according to the relationship between the range value C of the heat exchange medium temperature difference of the load and the speed of each preset booster pump: When C<C1, select the rotational speed D1 of the first preset pressurization pump as the rotational speed of the pressurization pump; When C1≤C<C2, select the speed D2 of the second preset pressure pump as the speed of the pressure pump; When C2≦C<C3, selecting the speed D3 of the third preset pressure pump as the speed of the pressure pump; When C3≦C<C4, the rotation speed D4 of the fourth preset pressure pump is selected as the speed of the pressure pump. 9. An installation structure of a constant temperature control device, characterized in that it is applied to the constant temperature control device of any one of claims 1-8, comprising: Fixed base, fixed on the ground; As for the constant temperature box fixing component, the fixed end of the base is fixed on the top of the fixed base, and the box fixing part is detachably connected with the constant temperature box. 10. The installation structure of a constant temperature control device according to claim 9, wherein the constant temperature box fixing assembly comprises: There are multiple sets of adjustment legs, which are relatively and vertically fixed on the top installation plane of the fixed base, and each of the adjustment legs is provided with a plurality of corresponding height adjustment holes; The box body fixing plate is provided with a height adjustment hole 2 corresponding to the height adjustment hole 1 on opposite sides, through which the bolts pass through the height adjustment hole 1 and the height adjustment hole 2 in turn, and the box body fixing plate detachably fixed on the adjustment legs; The threaded rod clamping mechanism is provided with two groups. One end of the threaded rod clamping mechanism of the two groups is fixed vertically and side by side on one side edge of the box fixing plate, and the other end is rotatably connected with a splint, and the splint is opened. The limit hole is set on the top of the constant temperature box on the limit rod corresponding to the limit hole, the limit plate is sleeved on the outside of the limit rod, and adjusted by the threaded rod clamping mechanism The distance between the splint and the box fixing plate fixes the thermostatic box on the box fixing plate.

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