Heat pump air conditioner exhaust energy cascade recycling system

Abstract

The utility model discloses a heat pump air conditioner exhaust energy cascade recycling system, which relates to the field of energy conservation, and comprises a heat pump outdoor unit energy heat recovery unit, a heat pump outdoor unit energy heat recovery unit, a heat pump outdoor unit energy heat recovery unit, a heat pump outdoor unit energy heat recovery unit, a heat pump outdoor unit energy heat recovery unit, a heat pump outdoor unit energy heat recovery unit, a heat pump outdoor unit energy heat recovery unit and a heat pump outdoor unit energy heat recovery unit, compared with the prior art, the utility model has the beneficial effects that under the condition that the investment is slightly increased, an original system is innovatively upgraded and reformed, and through the ethylene glycol solution heat recovery unit, the heat pump outdoor unit energy heat recovery unit and the exhaust air flow kinetic energy cascade recovery and reutilization unit, the heat pump outdoor unit energy heat recovery unit and the exhaust air flow kinetic energy cascade recovery and reutilization unit are utilized; when energy is recovered, the energy efficiency ratio of the heat pump outdoor unit is greatly improved, the working environment of the heat pump air conditioner outdoor unit is optimized, the overall energy heat recovery efficiency of an exhaust system is improved, and the outdoor service life of the heat pump air conditioner is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of energy saving, in particular to a heat pump air conditioner exhaust energy cascade recovery and utilization system. Background Art

[0002] Central air conditioning system is the main component of building energy consumption, accounting for about 70% of building energy consumption. Therefore, energy saving of central air conditioning has important practical significance. With the development of society, people pay more and more attention to the improvement of life quality and the pursuit of humanized environment. When energy saving and indoor air quality conflict, how to save energy under the premise of ensuring human health has always been a tireless research topic for scholars at home and abroad.

[0003] At present, the most commonly used energy heat recovery methods for multi-split air-conditioning systems on the market mainly include plate-fin type, heat pipe type and ethylene glycol solution type heat recovery. The cascade utilization cost of the current mainstream heat recovery form is relatively high and needs to be improved. Utility Model Content

[0004] The utility model aims to provide a heat pump air conditioner exhaust energy cascade recovery and utilization system to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A heat pump air conditioning exhaust energy cascade recovery and utilization system, comprising:

[0007] The heat recovery unit of the heat pump outdoor unit is used to introduce the exhaust air of the heat pump outdoor unit, and the output ethylene glycol solution heat is transmitted to the ethylene glycol solution heat recovery unit; the output exhaust air kinetic energy is transmitted to the cascade recovery and reuse unit of the exhaust air kinetic energy;

[0008] An ethylene glycol solution heat recovery unit is used to recover and utilize the heat of the ethylene glycol solution;

[0009] A cascade recovery and reuse unit for the kinetic energy of exhaust air, used to recover and reuse the kinetic energy of exhaust air;

[0010] The first end of the heat pump outdoor unit energy heat recovery unit is connected to the first end of the ethylene glycol solution heat recovery unit, and the second end of the heat pump outdoor unit energy heat recovery unit is connected to the first end of the exhaust air flow kinetic energy cascade recovery and reuse unit.

[0011] As a further solution of the utility model: the energy heat recovery unit of the heat pump outdoor unit includes an indoor return air duct, one end of the indoor return air duct introduces exhaust air from the heat pump outdoor unit, and the other end of the indoor return air duct is connected to one end of the ethylene glycol heat recovery exhaust fan unit. The inner cavity of the ethylene glycol heat recovery exhaust fan unit is provided with a variable frequency exhaust fan and an ethylene glycol heat recovery section. The kinetic energy of the exhaust airflow output by the variable frequency exhaust fan is transmitted to the cascade recovery and reuse unit of the exhaust airflow kinetic energy, and the heat of the ethylene glycol solution output by the ethylene glycol heat recovery section is transmitted to the ethylene glycol solution heat recovery unit.

[0012] As a further solution of the utility model: the ethylene glycol heat recovery section transfers the heat of the ethylene glycol solution to the ethylene glycol solution heat recovery unit through the ethylene glycol circulation pipe, and an ethylene glycol circulation pump is arranged above the ethylene glycol circulation pipe.

[0013] As a further solution of the utility model: the ethylene glycol solution heat recovery unit includes a combined air-conditioning unit, which is provided with a return air box, and the sides of the return air box are sequentially provided with a primary filter section, a medium filter section, an ethylene glycol energy heat recovery section, a direct expansion evaporation section, and an air supply section, and the ethylene glycol energy heat recovery section introduces the heat of the ethylene glycol solution output by the energy heat recovery unit of the heat pump outdoor unit.

[0014] As a further solution of the utility model: the cascade recovery and reuse unit of the kinetic energy of the exhaust airflow includes a common manifold for air ducts, the common manifold for air ducts introduces the kinetic energy of the exhaust airflow output by the energy heat recovery unit of the heat pump outdoor unit, the common manifold for air ducts is connected to multiple air supply devices, the air supply devices include an air volume regulating valve, a jet air supply port, and a multi-split outdoor unit, the common manifold for air ducts is connected to the jet air supply port through the air volume regulating valve, and the exhaust airflow flowing through the jet air supply port is output through the multi-split outdoor unit.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: with very little additional investment, the utility model innovatively upgrades and transforms the original system, and while recovering energy through the ethylene glycol solution heat recovery unit, the heat pump outdoor unit energy heat recovery unit, and the cascade recovery and reuse unit of the exhaust airflow kinetic energy, it greatly improves the energy efficiency ratio of the heat pump outdoor unit (the exhaust air of the heat pump outdoor unit is processed), optimizes the working environment of the heat pump air-conditioning outdoor unit, improves the overall energy heat recovery efficiency of the exhaust system, and extends the service life of the heat pump air-conditioning outdoor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The schematic diagram is a structural diagram of a heat pump air conditioning exhaust energy cascade recovery and utilization system.

[0017] In the figure: 1-combined air conditioning unit, 2-return air box, 3-primary filter section, 4-medium filter section, 5-ethylene glycol energy heat recovery section, 6-direct expansion evaporation section, 7-air supply section, 8-indoor return air duct, 9-ethylene glycol heat recovery exhaust fan unit, 10-variable frequency exhaust fan, 11-ethylene glycol heat recovery section, 12-ethylene glycol circulation pipe, 13-ethylene glycol circulation pump, 14-common manifold for air ducts, 15-air volume regulating valve, 16-jet air supply outlet, 17-multi-split outdoor unit. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] See also Figure 1 , a heat pump air conditioning exhaust energy cascade recovery and utilization system, comprising:

[0020] The heat recovery unit of the heat pump outdoor unit is used to introduce the exhaust air of the heat pump outdoor unit, and the output ethylene glycol solution heat is transmitted to the ethylene glycol solution heat recovery unit; the output exhaust air kinetic energy is transmitted to the cascade recovery and reuse unit of the exhaust air kinetic energy;

[0021] An ethylene glycol solution heat recovery unit is used to recover and utilize the heat of the ethylene glycol solution;

[0022] A cascade recovery and reuse unit for the kinetic energy of exhaust air, used to recover and reuse the kinetic energy of exhaust air;

[0023] The first end of the heat pump outdoor unit energy heat recovery unit is connected to the first end of the ethylene glycol solution heat recovery unit, and the second end of the heat pump outdoor unit energy heat recovery unit is connected to the first end of the exhaust air flow kinetic energy cascade recovery and reuse unit.

[0024] In this example: See Figure 1 The energy heat recovery unit of the heat pump outdoor unit includes an indoor return air duct 8, one end of the indoor return air duct 8 introduces exhaust air from the heat pump outdoor unit, and the other end of the indoor return air duct 8 is connected to one end of an ethylene glycol heat recovery exhaust fan unit 9. The inner cavity of the ethylene glycol heat recovery exhaust fan unit 9 is provided with a variable frequency exhaust fan 10 and an ethylene glycol heat recovery section 11. The kinetic energy of the exhaust air output by the variable frequency exhaust fan 10 is transmitted to the cascade recovery and reuse unit of the exhaust air kinetic energy, and the heat of the ethylene glycol solution output by the ethylene glycol heat recovery section 11 is transmitted to the ethylene glycol solution heat recovery unit.

[0025] In this example: See Figure 1The ethylene glycol heat recovery section 11 transfers the heat of the ethylene glycol solution to the ethylene glycol solution heat recovery unit through the ethylene glycol circulation pipe 12 , and an ethylene glycol circulation pump 13 is arranged above the ethylene glycol circulation pipe 12 .

[0026] The indoor return air duct 8 introduces exhaust air from the heat pump outdoor unit, including wind energy and thermal energy, and outputs the thermal energy of the ethylene glycol solution to the ethylene glycol solution heat recovery unit through the ethylene glycol heat recovery section 11, the ethylene glycol circulation pipe 12, and the ethylene glycol circulation pump 13, and outputs the wind energy of the exhaust air flow to the cascade recovery and reuse unit of the exhaust air flow kinetic energy through the variable frequency exhaust fan 10.

[0027] In this example: See Figure 1 The ethylene glycol solution heat recovery unit includes a combined air-conditioning unit 1, which is provided with a return air box 2. The sides of the return air box 2 are sequentially provided with a primary filter section 3, a medium filter section 4, an ethylene glycol energy heat recovery section 5, a direct expansion evaporation section 6, and an air supply section 7. The ethylene glycol energy heat recovery section 5 introduces the heat of the ethylene glycol solution output by the energy heat recovery unit of the heat pump outdoor unit.

[0028] The ethylene glycol solution heat recovery unit introduces the ethylene glycol energy heat recovery section 5 on the basis of the traditional equipment (the rest of the equipment is common equipment of the air-conditioning unit), introduces the heat energy, and reuses the heat energy.

[0029] In this example: See Figure 1 The cascade recovery and reuse unit of the exhaust air kinetic energy includes a common air duct header 14, which introduces the exhaust air kinetic energy output by the energy heat recovery unit of the heat pump outdoor unit. The common air duct header 14 is connected to multiple air supply devices, and the air supply devices include an air volume regulating valve 15, a jet air supply port 16, and a multi-split outdoor unit 17. The common air duct header 14 is connected to the jet air supply port 16 through the air volume regulating valve 15, and the exhaust air flow passing through the jet air supply port 16 is output through the multi-split outdoor unit 17.

[0030] The common air duct header 14 introduces the exhaust air kinetic energy output by the energy heat recovery unit of the heat pump outdoor unit, and then outputs it through the air volume regulating valve 15, the jet air outlet 16, and the multi-split outdoor unit 17, so as to further recover and reuse the wind energy.

[0031] The working principle of the utility model is as follows: the heat recovery unit of the heat pump outdoor unit is used to introduce the exhaust air of the heat pump outdoor unit, and the outputted ethylene glycol solution heat is transmitted to the ethylene glycol solution heat recovery unit; the outputted exhaust air kinetic energy is transmitted to the cascade recovery and reuse unit of the exhaust air kinetic energy; the ethylene glycol solution heat recovery unit is used to recover and utilize the heat of the ethylene glycol solution; the cascade recovery and reuse unit of the exhaust air kinetic energy is used to recover and utilize the exhaust air kinetic energy.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, the embodiments should be considered as exemplary and non-restrictive in all respects.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A heat pump air conditioning exhaust energy cascade recovery and utilization system, characterized in that: The heat pump air conditioning exhaust energy cascade recovery and utilization system includes: The heat recovery unit of the heat pump outdoor unit is used to introduce the exhaust air of the heat pump outdoor unit, and the output ethylene glycol solution heat is transmitted to the ethylene glycol solution heat recovery unit; the output exhaust air kinetic energy is transmitted to the cascade recovery and reuse unit of the exhaust air kinetic energy; An ethylene glycol solution heat recovery unit is used to recover and utilize the heat of the ethylene glycol solution; A cascade recovery and reuse unit for the kinetic energy of exhaust air, used to recover and reuse the kinetic energy of exhaust air; The first end of the heat pump outdoor unit energy heat recovery unit is connected to the first end of the ethylene glycol solution heat recovery unit, and the second end of the heat pump outdoor unit energy heat recovery unit is connected to the first end of the exhaust air flow kinetic energy cascade recovery and reuse unit.

2. The heat pump air conditioning exhaust energy cascade recovery and utilization system according to claim 1 is characterized in that: The energy heat recovery unit of the heat pump outdoor unit includes an indoor return air duct, one end of the indoor return air duct is introduced into the exhaust air of the heat pump outdoor unit, and the other end of the indoor return air duct is connected to one end of the ethylene glycol heat recovery exhaust fan unit. The inner cavity of the ethylene glycol heat recovery exhaust fan unit is provided with a variable frequency exhaust fan and an ethylene glycol heat recovery section. The kinetic energy of the exhaust airflow output by the variable frequency exhaust fan is transmitted to the cascade recovery and reuse unit of the exhaust airflow kinetic energy, and the heat of the ethylene glycol solution output by the ethylene glycol heat recovery section is transmitted to the ethylene glycol solution heat recovery unit.

3. The heat pump air conditioning exhaust energy cascade recovery and utilization system according to claim 2 is characterized in that: The ethylene glycol heat recovery section transfers the heat of the ethylene glycol solution to the ethylene glycol solution heat recovery unit through the ethylene glycol circulation pipe, and an ethylene glycol circulation pump is arranged above the ethylene glycol circulation pipe.

4. The heat pump air conditioning exhaust energy cascade recovery and utilization system according to claim 1 is characterized in that: The ethylene glycol solution heat recovery unit comprises a combined air-conditioning unit, which is provided with a return air box. A primary filter section, a medium filter section, an ethylene glycol energy heat recovery section, a direct expansion evaporation section and an air supply section are sequentially arranged on the side of the return air box. The ethylene glycol energy heat recovery section introduces the heat of the ethylene glycol solution output by the energy heat recovery unit of the heat pump outdoor unit.

5. The heat pump air conditioning exhaust energy cascade recovery and utilization system according to claim 1 is characterized in that: The cascade recovery and reuse unit of the exhaust air kinetic energy includes a common manifold for air ducts, which introduces the exhaust air kinetic energy output by the energy heat recovery unit of the heat pump outdoor unit. The common manifold for air ducts is connected to a plurality of air supply devices, and the air supply devices include an air volume regulating valve, a jet air supply port, and a multi-split outdoor unit. The common manifold for air ducts is connected to the jet air supply port via the air volume regulating valve, and the exhaust air flow passing through the jet air supply port is output via the multi-split outdoor unit.

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