Wellhead anti-freezing device combining efficient air energy heat pump and heat pipe

Abstract

The utility model discloses a wellhead anti-freezing device combining an efficient air energy heat pump and a heat pipe, and relates to the technical field of mine ventilation safety and heat exchange of coal mines and non-coal mines. A first throttle valve is mounted between the right outlet of the condenser and the inlet of the evaporator, the outlet of the evaporator is communicated with one end of a compressor, and the other end of the compressor is communicated with the right inlet of the condenser; the wellhead air inlet heating assembly comprises a heat pipe, an inlet of the heat pipe is communicated with an outlet in the left side of the condenser, an outlet of the heat pipe is communicated with an inlet in the left side of the condenser, and a second throttling valve is installed between the outlet in the left side of the condenser and the inlet of the heat pipe. The utility model has the characteristics of energy conservation, environmental protection, high efficiency, multiple purposes, wide application range, low investment cost and operation cost and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of mine ventilation safety and heat exchange in coal mines and non-coal mines, in particular to a wellhead antifreeze device combining a high-efficiency air energy heat pump with a heat pipe. Background Art

[0002] It is understood that in the existing coal mines and non-coal mines across the country, especially in the northern region, air intake wells must be air heated in winter to ensure that the wellheads do not freeze.

[0003] The existing technical solution is to use coal-fired boilers, electric hot air furnaces, gas boilers and other heating methods, which have disadvantages such as coal-fired gas air pollution, high power consumption, gas supply shortage and high cost.

[0004] Therefore, there is an urgent need for a wellhead antifreeze device combining a high-efficiency air energy heat pump and a heat pipe to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a wellhead antifreeze device combining a high-efficiency air energy heat pump with a heat pipe, so as to solve the problems existing in the prior art.

[0006] To achieve the above purpose, the utility model provides the following solution: The utility model provides a wellhead antifreeze device combining a high-efficiency air energy heat pump and a heat pipe, comprising:

[0007] A heat pump heat extraction component, the heat pump heat extraction component comprises a condenser, the right outlet of the condenser is connected to the inlet of the evaporator, a first throttle valve is installed between the right outlet of the condenser and the inlet of the evaporator, the evaporator outlet is connected to one end of a compressor, and the other end of the compressor is connected to the right inlet of the condenser;

[0008] A wellhead air inlet heating component, the wellhead air inlet heating component includes a heat pipe, the heat pipe inlet is connected to the left side outlet of the condenser, the heat pipe outlet is connected to the left side inlet of the condenser, and a second throttle valve is installed between the left side outlet of the condenser and the heat pipe inlet.

[0009] Preferably, a bypass pipe is connected in parallel between the right outlet of the condenser and the inlet of the evaporator, and a bypass valve is installed on the bypass pipe.

[0010] Preferably, a first pressure detector is installed on the evaporator.

[0011] Preferably, a second pressure detector is installed on the condenser.

[0012] Preferably, a third pressure detector is installed on the heat pipe.

[0013] The utility model discloses the following technical effects: when in use, the compressor is started, and the first throttle valve and the second throttle valve are opened to form a closed loop. The refrigerant medium enters the condenser after being compressed by the compressor, and the right side of the condenser releases heat and enters the evaporator for recirculation. The heat is transferred to the heat pipe on the left side of the condenser, and is transferred to the wellhead air intake air through the heat pipe, thereby continuously heating the imported air intake air; when the wellhead air intake air temperature reaches the standard set required value, the device can automatically stop running to save electric energy, and when the wellhead air intake air temperature is lower than the standard set required value, the device can automatically start running to provide heat for the wellhead air intake air. The utility model can realize the extraction of waste heat from low-temperature air or water, and is used to solve the technical problem of high energy consumption of wellhead air intake heating in winter ventilation of coal mines and non-coal mines, while ensuring the safety of mine ventilation; and it has the remarkable characteristics of energy saving, environmental protection, high efficiency, multi-purpose and wide adaptability; and it has low investment cost, low operating cost, good wellhead air heating effect, stable device operation and strong reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Among them, 1. heat pipe; 2. condenser; 3. second pressure detector; 4. first throttle valve; 5. bypass valve; 6. evaporator; 7. first pressure detector; 8. compressor; 9. second throttle valve; 10. third pressure detector. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Reference Figure 1 The utility model provides a wellhead antifreeze device combining a high-efficiency air energy heat pump and a heat pipe, comprising:

[0020] The heat pump heat extraction component includes a condenser 2, the right outlet of the condenser 2 is connected to the inlet of the evaporator 6, a first throttle valve 4 is installed between the right outlet of the condenser 2 and the inlet of the evaporator 6, the outlet of the evaporator 6 is connected to one end of the compressor 8, and the other end of the compressor 8 is connected to the right inlet of the condenser 2;

[0021] The wellhead air inlet heating component includes a heat pipe 1, the inlet of the heat pipe 1 is connected to the left outlet of the condenser 2, the outlet of the heat pipe 1 is connected to the left inlet of the condenser 2, and a second throttle valve 9 is installed between the left outlet of the condenser 2 and the inlet of the heat pipe 1.

[0022] When in use, start the compressor 8, and open the first throttle valve 4 and the second throttle valve 9 to form a closed loop. The refrigerant medium enters the condenser 2 after being compressed by the compressor 8, and the right side of the condenser 2 releases heat and enters the evaporator 6 for recirculation. The heat is transferred to the heat pipe 1 on the left side of the condenser 2, and is transferred to the wellhead air intake air through the heat pipe 1, thereby continuously heating the imported air intake air; when the wellhead air intake air temperature reaches the standard set required value, the device can automatically stop running to save electric energy, and when the wellhead air intake air temperature is lower than the standard set required value, the device can automatically start running to provide heat for the wellhead air intake air. The utility model can realize the extraction of waste heat from low-temperature air or water, and is used to solve the technical problem of high energy consumption of wellhead air intake heating in winter ventilation of coal mines and non-coal mines, while ensuring the safety of mine ventilation; and it has the remarkable characteristics of energy saving, environmental protection, high efficiency, multi-purpose and wide adaptability; and it has low investment cost, low operating cost, good wellhead air heating effect, stable operation of the device and strong reliability.

[0023] To further optimize the solution, a bypass pipe is connected in parallel between the right outlet of the condenser 2 and the inlet of the evaporator 6, and a bypass valve 5 is installed on the bypass pipe. The bypass valve 5 can adjust the flow through the pipeline system to ensure that the flow of related equipment is within a reasonable range, avoid damage to the equipment due to excessive flow or blockage, and thus protect the equipment.

[0024] According to a further optimization scheme, a first pressure detector 7 is installed on the evaporator 6 .

[0025] To further optimize the solution, a second pressure detector 3 is installed on the condenser 2. The first pressure detector 7 and the second pressure detector 3 can respectively measure the pressure values ​​of the refrigerant medium in the evaporator 6 and the condenser 2, thereby automatically adjusting the opening of the first throttle valve 4 and the bypass valve 5, thereby adjusting the amount of waste heat extracted from the external environment (low-temperature air or water) by the heat pump heat extraction part.

[0026] To further optimize the solution, a third pressure detector 10 is installed on the heat pipe 1. The third pressure detector 10 can monitor the pressure value of the refrigerant medium in the heat pipe 1 and automatically adjust the opening of the second throttle valve 9, thereby adjusting the amount of heating of the wellhead inlet air by the heating part of the wellhead inlet heat pipe 1.

[0027] Working principle:

[0028] When the wellhead inlet air needs to be heated in winter, the compressor 8 is started, and the first throttle valve 4, the bypass valve 5 and the second throttle valve 9 are opened. The refrigerant medium in the evaporator 6 is sucked into the compressor 8, and the refrigerant medium in the evaporator 6 evaporates continuously, and at the same time, the evaporator 6 absorbs heat from the external environment (low-temperature air or water).

[0029] After being compressed by the compressor 8, the refrigerant medium becomes a high-temperature and high-pressure gas and enters the right side of the condenser 2 to release heat, and then becomes a liquid and passes through the first throttle valve 4 and the bypass valve 5 to re-enter the evaporator 6 for circulation; the refrigerant medium in the heat pipe 1 on the left side of the condenser 2 is heated and evaporated and enters the heat pipe 1 through the second throttle valve 9, and then transfers the heat to the wellhead intake air through the heat pipe 1, and re-enters the left side of the condenser 2 after condensation, thereby realizing continuous heating of the wellhead intake air.

[0030] When the wellhead inlet air does not need to be heated in the non-heating season, the compressor 8 is stopped, and the first throttle valve 4, the bypass valve 5 and the second throttle valve 9 are closed.

[0031] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A wellhead antifreeze device combining a high-efficiency air energy heat pump and a heat pipe, characterized in that: include: A heat pump heat extraction component, the heat pump heat extraction component comprising a condenser (2), the right side outlet of the condenser (2) being connected to the inlet of an evaporator (6), a first throttle valve (4) being installed between the right side outlet of the condenser (2) and the inlet of the evaporator (6), the outlet of the evaporator (6) being connected to one end of a compressor (8), the other end of the compressor (8) being connected to the right side inlet of the condenser (2); A wellhead air inlet heating component, the wellhead air inlet heating component comprising a heat pipe (1), the heat pipe (1) inlet being connected to the left side outlet of the condenser (2), the heat pipe (1) outlet being connected to the left side inlet of the condenser (2), and a second throttle valve (9) being installed between the left side outlet of the condenser (2) and the heat pipe (1) inlet.

2. The wellhead antifreeze device combining a high-efficiency air energy heat pump and a heat pipe according to claim 1 is characterized in that: A bypass pipe is also connected in parallel between the right outlet of the condenser (2) and the inlet of the evaporator (6), and a bypass valve (5) is installed on the bypass pipe.

3. The wellhead antifreeze device combining a high-efficiency air energy heat pump and a heat pipe according to claim 1 is characterized in that: The evaporator (6) is equipped with a first pressure detector (7).

4. The wellhead antifreeze device combining a high-efficiency air energy heat pump and a heat pipe according to claim 1 is characterized in that: A second pressure detector (3) is installed on the condenser (2).

5. The wellhead antifreeze device combining a high-efficiency air energy heat pump and a heat pipe according to claim 1 is characterized in that: A third pressure detector (10) is installed on the heat pipe (1).

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