CN212619591U

CN212619591U - Clean energy cold and warm station anti-freezing system

Info

Publication number: CN212619591U
Application number: CN202021199232.1U
Authority: CN
Inventors: 唐志成; 曾智勇; 万绪财; 李霖; 赵猛; 王娟; 易楠鸿
Original assignee: Sichuan Xiecheng Power Engineering Design Co ltd
Current assignee: Sichuan Xiecheng Power Engineering Design Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-02-26
Anticipated expiration: 2030-06-24

Abstract

The utility model belongs to the technical field of the clean energy, a clean energy changes in temperature station anti-freezing system is disclosed, include: the photovoltaic cell is used for receiving light and generating electricity; an energy storage battery electrically connected to the photovoltaic cell; the defrosting heating wire is arranged on an evaporator of the heat pump and is electrically connected with the energy storage battery; the anti-freezing heating wire is arranged on a lead pipe of the instrument and electrically connected with the energy storage battery. Through the structure, the anti-freezing system for the clean energy cooling and heating station can heat the evaporator of the heat pump of the clean energy cooling and heating station and the lead pipe of the instrument, can prevent the evaporator of the heat pump from frosting, improves the working efficiency of the clean energy cooling and heating station, can prevent the lead pipe of the instrument from freezing, and protects the instrument.

Description

Clean energy cold and warm station anti-freezing system

Technical Field

The utility model relates to a clean energy technical field especially relates to a clean energy changes in temperature station anti-freezing system.

Background

In recent years, with the continuous development of the application field of clean energy, various clean energy cooling and heating stations are widely used. Among them, an air source heat pump using air as a heat source has been widely used for winter heating in clean energy cooling and heating stations.

In order to facilitate the detection of the working operation state of the clean energy cooling and heating station, instruments such as a pressure gauge and a pressure difference gauge are generally installed on a pipeline in the clean energy cooling and heating station. Also, in order to mount the meter in a convenient location for viewing, it is often necessary to mount the meter on a lead that leads from the pipe. Because the fluid medium in the leading pipe does not flow, the fluid medium in the leading pipe is easy to freeze when the environmental temperature is lower in winter, which not only can cause the reading of the instrument to be abnormal, but also can even damage the instrument, and seriously influences the normal operation of the clean energy cold and warm station. In addition, when the ambient temperature is low in winter, the surface of an evaporator of an air source heat pump in the clean energy cooling and heating station is very easy to frost, and the heat pump needs to defrost at intervals, so that the heating of the heat pump is influenced, and the working efficiency of the clean energy cooling and heating station is seriously reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clean energy changes in temperature station anti-freezing system can heat the evaporimeter of the heat pump at clean energy changes in temperature station and the lead pipe of instrument, can prevent that the evaporimeter of heat pump from frosting, improves the work efficiency at clean energy changes in temperature station, can prevent again that the lead pipe of instrument from freezing, the protection instrument.

To achieve the purpose, the utility model adopts the following technical proposal:

a clean energy cold and warm station antifreeze system comprising:

the photovoltaic cell is used for receiving light and generating electricity;

an energy storage battery electrically connected to the photovoltaic cell;

the defrosting heating wire is arranged on an evaporator of the heat pump and is electrically connected with the energy storage battery;

the anti-freezing heating wire is arranged on a lead pipe of the instrument and electrically connected with the energy storage battery.

Preferably, the temperature detection device further comprises a temperature detector, wherein the temperature detector comprises a first temperature detector and a second temperature detector, the first temperature detector is used for detecting the temperature of the evaporator, and the second temperature detector is used for detecting the temperature of the guide pipe.

Preferably, the first temperature detector and the second temperature detector are both wireless temperature detectors.

Preferably, the defrosting heating wire is provided with a plurality of sections, and the plurality of sections of defrosting heating wires are connected in parallel.

Preferably, the defrosting heating wires are uniformly arranged on the evaporator in multiple sections.

Preferably, an evaporator fan is further included, the evaporator fan being capable of forcing air to flow through the evaporator.

Preferably, the evaporator is installed on the installation support, the evaporation fan is installed at one end of the installation support, and a gap is formed between the evaporator and the ground.

Preferably, the outer surface of the guide pipe is provided with a heat insulation layer.

Preferably, the photovoltaic cell system further comprises a junction box, wherein multiple groups of photovoltaic cells are arranged, and the multiple groups of photovoltaic cells are electrically connected to the energy storage cell through the junction box.

Preferably, the defrosting device further comprises a first switch and a second switch, the defrosting heating wire is connected with the energy storage battery through the first switch, and the anti-freezing heating wire is connected with the energy storage battery through the second switch.

The utility model has the advantages that:

the utility model provides a clean energy cold and warm station anti-freezing system, which utilizes a photovoltaic cell to heat an evaporator through a defrosting electric heating wire, effectively prevents the surface of the evaporator from frosting, reduces the defrosting time and times of a heat pump, reduces the energy consumption in the clean energy cold and warm station, and improves the heating efficiency of the heat pump, thereby improving the working efficiency of the clean energy cold and warm station; the photovoltaic cell is utilized to heat the leading pipe of the instrument, so that the leading pipe of the instrument is prevented from freezing, the normal reading of the instrument is ensured, and the instrument can be prevented from being frozen.

Drawings

Fig. 1 is a schematic diagram of an anti-freezing system for a clean energy cooling and heating station according to an embodiment of the present invention;

fig. 2 is a schematic view illustrating an installation of an evaporator of an anti-freezing system of a clean energy cooling and heating station according to an embodiment of the present invention;

fig. 3 is a schematic view of an instrument of the anti-freezing system for a clean energy cooling and heating station according to an embodiment of the present invention.

In the figure:

1. a photovoltaic cell; 11. a combiner box; 2. an energy storage battery; 3. defrosting the heating wire; 31. a first switch; 4. an anti-freezing electric heating wire; 41. a second switch; 5. a temperature detector; 51. a first temperature detector; 52. a second temperature detector; 100. an evaporator; 101. mounting a bracket; 102. a cable pre-buried pipe; 200. a meter; 201. guiding a pipe; 2011. a heat-insulating layer; 6. an evaporation fan; 7. an energy efficiency management system; 8. a current converter; 9. an electrical cable.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The utility model provides a clean energy changes in temperature station anti-freezing system, as shown in figure 1, this clean energy changes in temperature station anti-freezing system includes multiunit photovoltaic cell 1, energy storage battery 2, defrosting heating wire 3, anti-freezing heating wire 4. Specifically, the photovoltaic cell 1 is electrically connected to the energy storage cell 2, the defrosting heating wire 3 is arranged on the evaporator 100 of the heat pump, the anti-freezing heating wire 4 is arranged on the lead 201 of the instrument 200, and both the defrosting heating wire 3 and the anti-freezing heating wire 4 are electrically connected to the energy storage cell 2.

In the embodiment, the photovoltaic cell 1 can receive light and generate power, and then electric energy is stored in the energy storage cell 2, and the external clean energy of solar energy is utilized, so that not only is the generation of pollutants reduced, but also the energy loss of a clean energy cooling and heating station can be reduced; the defrosting heating wire 3 heats the evaporator 100 by using the electric energy in the energy storage battery 2, so that the surface of the evaporator 100 can be prevented from frosting, the defrosting time and times of the heat pump are reduced, the heating efficiency of the heat pump is improved, and the working efficiency of the clean energy cooling and heating station is improved; in addition, the antifreeze heating wire 4 heats the leading pipe 201 of the instrument 200 by using the electric energy in the energy storage battery 2, so that the temperature of the flowing medium in the leading pipe 201 is higher than the freezing temperature, the flowing medium in the leading pipe 201 can be prevented from freezing, the normal reading of the instrument 200 can be ensured, and the instrument 200 can be prevented from being frozen.

Preferably, the anti-freezing system for the clean energy cold and warm station further comprises a confluence box 11 and a converter 8, wherein the groups of photovoltaic cells 1 are electrically connected to the energy storage cell 2 through the confluence box 11, and the energy storage cell 2 is electrically connected to the defrosting heating wire 3 and the anti-freezing heating wire 4 through the converter 8. The combiner box 11 not only can combine the electric energy generated by the plurality of groups of photovoltaic cells 1, but also can easily cut off the photovoltaic cells 1 of a certain group of photovoltaic cells 1 when the group of photovoltaic cells 1 is maintained and checked, thereby reducing the influence on other groups of photovoltaic cells 1. The converter 8 can convert the direct current released by the energy storage battery 2 into alternating current, so that the electric energy released by the energy storage battery 2 can enable the defrosting heating wire 3 and the anti-freezing heating wire 4 to work normally.

In the embodiment, the clean energy cold and warm station anti-freezing system further comprises a temperature detector 5, wherein the temperature detector 5 comprises a first temperature detector 51 and a second temperature detector 52, the first temperature detector 51 is used for detecting the temperature of the evaporator 100, and the second temperature detector 52 is used for detecting the temperature of the lead pipe 201. Preferably, the first temperature detector 51 and the second temperature detector 52 are both wireless temperature sensors, no wiring is required, temperature information can be wirelessly transmitted, and the arrangement position is flexible and convenient. More preferably, the first temperature detector 51 and the second temperature detector 52 are both non-contact temperature detectors, and do not contact with the evaporator 100 or the lead pipe 201, and the position arrangement is flexible, so that the installation of the temperature detector 5 is convenient.

In this embodiment, a first switch 31 is provided on a circuit connected between the inverter 8 and the defrosting heating wire 3, and a second switch 41 is provided on a circuit connected between the inverter 8 and the anti-freezing heating wire 4. When the first temperature detector 51 detects that the temperature of the evaporator 100 is equal to or lower than a preset temperature (frosting temperature), the first switch 31 is closed, the defrosting heating wire 3 is electrified to generate heat, the temperature of the evaporator 100 is increased, the evaporator 100 is prevented from frosting, the defrosting time and the defrosting frequency of the heat pump can be reduced, the working efficiency of the heat pump can be increased, and the working efficiency of the clean energy cooling and heating station can be further improved. When the second temperature detector 52 detects that the temperature of the lead pipe 201 is equal to or lower than a preset temperature (freezing temperature), the second switch 41 is closed, the anti-freezing heating wire 4 is electrified to generate heat, the temperature of the lead pipe 201 is raised, the temperature of a fluid medium in the lead pipe 201 is higher than the freezing temperature, the medium in the lead pipe 201 is prevented from freezing, the normal reading of the instrument is guaranteed, and the instrument 200 can be prevented from being frozen.

As shown in fig. 2, preferably, the anti-freezing system for the clean energy cold and warm station further includes a mounting bracket 101 and an evaporation fan 6, the evaporator 100 is mounted on the mounting bracket 101, and the evaporation fan 6 is mounted at one end of the mounting bracket 101, so that the evaporation fan 6 can force air to flow over the surface of the evaporator 100 when rotating, heat exchange between the evaporator 100 and the air can be enhanced, and the evaporator 100 is heated by the external air, which is beneficial to improving the temperature of the evaporator 100, preventing the evaporator 100 from frosting, reducing the defrosting time and the defrosting times of the heat pump, improving the working efficiency of the heat pump, and further improving the working efficiency of the clean energy cold and warm station. More preferably, the evaporation fan 6 is installed at the top end of the mounting bracket 101, and a gap is provided between the evaporator 100 and the ground, so that the external air can flow through the gap, and the heat exchange between the evaporator 100 and the external air is further enhanced. In this embodiment, the first temperature detector 51 is mounted on the mounting bracket 101 via the first base, so that the first temperature detector 51 is firmly mounted and is not easy to fall off.

In this embodiment, the defrosting heating wire 3 is provided with a plurality of segments, and the plurality of segments of the defrosting heating wire 3 are arranged in parallel, so that the single defrosting heating wire 3 can be maintained and replaced conveniently, and the single defrosting heating wire 3 can be prevented from being damaged to influence the normal work of other defrosting heating wires 3. Preferably, the evaporator 100 is uniformly provided with the plurality of sections of defrosting heating wires 3, so that the evaporator 100 can be uniformly heated, and local frosting of the evaporator 100 can be avoided. In this embodiment, the electric energy output by the inverter 8 is connected to the defrosting heating wire 3 through the cable 9, and the surface of the cable 9 is insulated from the outside, so that electric shock is not easy to occur, and the safety performance is good. Preferably, the cable embedded pipe 102 is arranged on the ground, and the cable 9 is connected to the defrosting heating wire 3 after penetrating out of the cable embedded pipe 102, so that the circuit arrangement of the cable 9 is avoided, the cable 9 is not easy to be damaged, and the safety is good.

As shown in fig. 3, the antifreeze heating wire 4 is preferably uniformly wound on the surface of the lead 201, which is beneficial to uniformly heating the lead 201 and avoiding local icing and blockage of the lead 201. More preferably, a heat insulating layer 2011 is arranged on the surface of the lead 201, and the lead 201 and the anti-freezing heating wire 4 on the surface of the lead 201 are wrapped inside, so that heat loss of a fluid medium in the lead 201 is reduced, the temperature of the fluid medium is kept higher than the freezing temperature, electric energy consumed by the anti-freezing heating wire 4 is reduced, and energy conservation is facilitated. More preferably, the electric energy output by the current converter 8 is connected to the anti-freezing heating wire 4 through a cable 9, the surface of the cable 9 is insulated from the outside, electric shock is not easy to occur, and the safety performance is good. In this embodiment, the second temperature detector 52 is mounted on the guide tube 201 via the second base, so that the second temperature detector 52 is firmly mounted and is not easy to fall off.

Preferably, the clean energy cold and warm station anti-freezing system further comprises an energy efficiency management system 7, and the energy efficiency management system 7 is connected with the first switch 31, the second switch 41 and the temperature detector 5. The energy efficiency management system 7 includes a programmable logic controller, a protection circuit, a relay, and components related thereto. In this embodiment, the controller may be a centralized or distributed controller, for example, the controller may be a single-chip microcomputer or may be composed of a plurality of distributed single-chip microcomputers, a control program may be run in the single-chip microcomputers, and the controller may receive a temperature signal transmitted by the temperature detector 5, and control the on/off of the first switch 31 and the second switch 41 according to the temperature signal, so as to control the heating of the defrosting heating wire 3 and the anti-freezing heating wire 4.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A clean energy cold and warm station anti-freezing system is characterized by comprising:

a photovoltaic cell (1) for receiving light and generating electricity;

an energy storage cell (2) electrically connected to the photovoltaic cell (1);

the defrosting heating wire (3) is arranged on an evaporator (100) of the heat pump, and the defrosting heating wire (3) is electrically connected with the energy storage battery (2);

the anti-freezing electric heating wire (4), the anti-freezing electric heating wire (4) is arranged on a lead pipe (201) of the instrument (200), and the anti-freezing electric heating wire (4) is electrically connected with the energy storage battery (2).

2. The clean energy cold-warm station anti-freezing system according to claim 1, characterized by further comprising a temperature detector (5), wherein the temperature detector (5) comprises a first temperature detector (51) and a second temperature detector (52), the first temperature detector (51) is used for detecting the temperature of the evaporator (100), and the second temperature detector (52) is used for detecting the temperature of the lead pipe (201).

3. The clean energy cold-warm station antifreeze system according to claim 2, characterized in that the first temperature detector (51) and the second temperature detector (52) are both wireless temperature detectors.

4. The clean energy cold and warm station anti-freezing system as claimed in claim 1, wherein the defrosting heating wire (3) is provided with multiple segments, and the multiple segments of the defrosting heating wire (3) are arranged in parallel.

5. The clean energy cold and warm station antifreeze system according to claim 4, characterized in that the defrosting heating wire (3) is uniformly arranged on the evaporator (100).

6. The clean energy cold and warm station antifreeze system according to claim 1, characterized by further comprising an evaporation fan (6), wherein the evaporation fan (6) is capable of forcing air to flow through the evaporator (100).

7. The clean energy cold and warm station anti-freezing system according to claim 6, further comprising a mounting bracket (101), wherein the evaporator (100) is mounted on the mounting bracket (101), the evaporation fan (6) is mounted at one end of the mounting bracket (101), and a gap is formed between the evaporator (100) and the ground.

8. The clean energy cold and warm station anti-freezing system according to any one of claims 1-7, characterized in that an insulating layer (2011) is arranged on the outer surface of the lead pipe (201).

9. The clean energy cold and warm station anti-freezing system according to any one of claims 1-7, characterized by further comprising a combiner box (11), wherein the photovoltaic cells (1) are provided with a plurality of groups, and the groups of photovoltaic cells (1) are electrically connected to the energy storage cell (2) through the combiner box (11).

10. The clean energy cold and warm station anti-freezing system according to any one of claims 1-7, characterized by further comprising a first switch (31) and a second switch (41), wherein the defrosting heating wire (3) is connected with the energy storage battery (2) through the first switch (31), and the anti-freezing heating wire (4) is connected with the energy storage battery (2) through the second switch (41).