CN105333583A - Rainwater, condensed water and defrosted water utilization device for roof-top unit - Google Patents

Abstract

The invention discloses a rainwater, condensed water and defrosted water utilization device for a roof-top unit. The rainwater, condensed water and defrosted water utilization device comprises a rainwater collection box, a water filter, a first electromagnetic valve, a second electromagnetic valve, an outdoor finned heat exchanger sprayer, an outdoor finned heat exchanger, a compressor, a defrosted water collection disc, a throttle valve, a heat exchanger, a surface cooling section and heating section heat exchanger, a condensed water collection disc, an air conditioner water collection tank, a water pump, a third electromagnetic valve and a fourth electromagnetic valve, wherein the rainwater collection box is communicated with an input end of the water filter; an output end of the water filter is connected with input ends of the first electromagnetic valve and the second electromagnetic valve respectively; an output end of the second electromagnetic valve is connected with a wet film humidification section; an output end of the first electromagnetic valve is connected with the outdoor finned heat exchanger sprayer; one end of the outdoor finned heat exchanger is connected with a port b of the third electromagnetic valve; and a port a and a port c of the third electromagnetic valve are connected with two ports of the compressor respectively. The rainwater, condensed water and defrosted water utilization device disclosed by the invention is capable of solving the problems of sunning, rainwater spraying and the like, and is capable of adequately utilizing water resources and reducing energy consumption.

Description

A rainwater, condensed water, and defrosting water utilization device for a roof machine

【Technical field】

The invention relates to a device for utilizing rainwater, condensed water and defrosting water of a roof machine, and belongs to the field of heating, ventilating and air conditioning.

【Background technique】

Rooftop air-conditioning unit is a central air-conditioning product that integrates cold (heat) source and air treatment. This product is usually air-cooled, using the surface cooler (air heater) in the refrigeration system to directly exchange heat and moisture between the refrigerant and the air, without the need for cooling towers, cooling water pipelines, circulating water pumps, chilled water pipelines and special machine rooms , The unit can be installed on the roof or outdoor courtyard as a whole. Due to the installation position requirements of the roof machine, the roof machine must have a strong ability to resist the influence of the external environment, such as rainwater, sunlight, etc., which not only puts forward high requirements for its raw materials and production technology, but also increases the Production costs and maintenance costs.

Condensed water will be generated during the operation of the air conditioner surface cooler, and defrosting water will be generated by the air source heat pump unit in winter. On the one hand, the direct discharge of this part of water will cause energy waste. On the other hand, the disorderly discharge will also cause damage to the unit and the building. The facilities caused certain pollution and damage, which caused inconvenience to residents' lives. We are facing the severe challenge of increasing national resource demand and resource depletion, fully recycling this part of resources is in line with the concept of energy conservation and environmental protection. As an extremely valuable water resource, rainwater has already attracted the attention of various countries in the world. With the continuous acceleration of industrialization and urbanization in our country, people's demand for water resources continues to increase, and recycling rainwater equipment has long-term benefits.

【Content of invention】

The purpose of the present invention is to solve the problems in the prior art, and propose a roof machine rainwater, condensed water, and defrosting water utilization device, which can solve the problems of sun protection and rainwater pouring, and can make full use of water resources to reduce energy consumption. .

In order to achieve the above object, the present invention proposes a rainwater, condensed water, and defrosting water utilization device for a roof machine, which includes a rainwater collection box, a water filter, a first electromagnetic valve, a second electromagnetic valve, and a nozzle for an outer fin heat exchanger. Shower, outdoor finned heat exchanger, compressor, defrost water collection tray, throttle valve, heat exchanger, surface cooling section and heating section heat exchanger, condensate water collection tray, air conditioning water collection tank, water pump , the third solenoid valve and the fourth solenoid valve, the rainwater collecting tank is communicated with the input end of the water filter, and the output end of the water filter is respectively connected with the input ends of the first solenoid valve and the second solenoid valve, so The output end of the second electromagnetic valve is connected to the wet film humidification section, the output end of the first electromagnetic valve is connected to the shower of the outer fin heat exchanger, and one end of the outdoor fin heat exchanger is connected to the third electromagnetic The b port of the valve is connected, the a port and c port of the third solenoid valve are respectively connected with the two ports of the compressor, the d port of the third solenoid valve is connected with one end of the surface cooling section and the heating section heat exchanger, The other end of the heat exchanger in the surface cooling section and the heating section is connected to one end of the heat exchanger through a throttle valve, the heat exchanger is arranged in the rainwater collection tank, and the other end of the heat exchanger is connected to the outdoor fin The other end of the heat exchanger is connected, and the other end of the outdoor finned heat exchanger is connected to one end of the heat exchanger through the fourth solenoid valve. The input end of the water pump communicates with the bottom of the air-conditioning water collection tank, and the output end of the water pump communicates with the rainwater collection tank.

As a preference, a rainwater collection box is provided above the air conditioning box, the rainwater collection box includes an upper water storage part and a lower water storage part, the size of the upper water storage part is larger than the size of the lower water storage part, and the lower water storage part The length and width of the water storage part are larger than the length and width of the air conditioning box, and the upper end of the upper water storage part is provided with an extended edge, and the extended edge has a certain inclination angle.

Preferably, the bottom of the upper water storage part is provided with a water intake, the input end of the water filter communicates with the water intake, the output end of the water pump communicates with the water inlet at the bottom of the upper water storage part, and the upper The top of the water storage part is provided with a mesh protective cover.

Preferably, a drain port is provided at the bottom of the lower water storage part, and a drain valve is provided on the drain port.

As a preference, a check valve is provided on the connecting pipe between the defrosting water collecting pan and the air-conditioning water collection tank, and a check valve is provided on the connecting pipe between the condensed water collecting pan and the air-conditioning water collecting water tank. valve, and the top of the air-conditioning water collection tank is provided with a mesh protective cover.

Preferably, a check valve is provided on the connecting pipe between the output end of the water pump and the upper water storage part.

Beneficial effects of the present invention: the present invention can supercool the refrigerant in summer, effectively reduce the condensation temperature of the outdoor fin heat exchanger by system spraying, humidify the air in winter, and effectively recycle rainwater and condensation in heating and cooling seasons. Water and defrosting water resources; increasing the height of the water tank to directly use the gravitational potential energy of water to do work is beneficial to energy saving; preventing sunlight on sunny days and rainwater on rainy days, effectively reducing the adverse effects of the air conditioning unit from the external environment and reducing its surface temperature Therefore, the waterproof requirement of the casing of the unit is reduced, and the production cost and maintenance cost are reduced.

The features and advantages of the present invention will be described in detail with reference to the accompanying drawings.

【Description of drawings】

Fig. 1 is a kind of roof machine rainwater, condensation water, defrosting water utilizing device of the present invention;

Fig. 2 is a perspective view of the rainwater collection tank.

In the figure: 1-Rainwater collection tank, 2-Water filter, 3-First solenoid valve, 4-Second solenoid valve, 5-External fin heat exchanger sprinkler, 6-Outdoor fin heat exchanger, 7-Compressor, 8-Defrosting water collection tray, 9-Throttle valve, 10-Heat exchanger, 11-Wet film humidification section, 12-Surface cooling section and heating section heat exchanger, 13-Condensation water collection Water pan, 14-Air conditioning water collection tank, 15-Water pump, 16-Third solenoid valve, 17-Fourth solenoid valve, 18-Water intake, 19-Drain valve, 20-Extended edge, 21-Check valve, 22 - water inlet, 1a - upper water storage part, 1b - lower water storage part.

【detailed description】

Referring to Figures 1 and 2, a rainwater, condensed water, and defrosting water utilization device for a roof machine of the present invention includes a rainwater collection box 1, a water filter 2, a first solenoid valve 3, a second solenoid valve 4, and an outer fin replacement Heater sprinkler 5, outdoor finned heat exchanger 6, compressor 7, defrosting water collecting pan 8, throttle valve 9, heat exchanger 10, surface cooling section and heating section heat exchanger 12, condensed water Drain tray 13, air-conditioning water collection tank 14, water pump 15, third solenoid valve 16 and fourth solenoid valve 17, the rainwater collection tank 1 communicates with the input end of the water filter 2, the output of the water filter 2 connected to the input ends of the first electromagnetic valve 3 and the second electromagnetic valve 4, the output end of the second electromagnetic valve 4 is connected to the wet film humidification section 11, and the output end of the first electromagnetic valve 3 is connected to the outer fin The fin heat exchanger sprayer 5 is connected, one end of the outdoor fin heat exchanger 6 is connected to the b port of the third electromagnetic valve 16, and the a port and the c port of the third electromagnetic valve 16 are respectively connected to the compressor 7 The two ports of the third solenoid valve 16 are connected to one end of the surface cooling section and heating section heat exchanger 12, and the other end of the surface cooling section and heating section heat exchanger 12 passes through the throttle valve 9 It is connected with one end of the heat exchanger 10, and the heat exchanger 10 is arranged in the rainwater collection tank 1, and the other end of the heat exchanger 10 is connected with the other end of the outdoor fin heat exchanger 6, and the outdoor fin The other end of the heat exchanger 6 is connected to one end of the heat exchanger 10 through the fourth electromagnetic valve 17, and the defrosting water collecting pan 8 and the condensed water collecting pan 13 are all communicated with the air-conditioning water collecting water tank 14, and the water pump 15 The input end communicates with the bottom of the air-conditioning water collection tank 14, the output end of the water pump 15 communicates with the rainwater collection box 1, and the rainwater collection box 1 is arranged above the air conditioning box, and the rainwater collection box 1 includes an upper water storage part 1a and the lower water storage part 1b, the size of the upper water storage part 1a is greater than the size of the lower water storage part 1b, the length and width of the lower water storage part 1b are greater than the length and width of the air conditioning box, the upper storage part The upper end of the water part 1a is provided with an extended edge 20, the extended edge 20 has a certain inclination angle, the bottom of the upper water storage part 1a is provided with a water intake 18, and the input end of the water filter 2 is connected to the water intake 18 , the output end of the water pump 15 communicates with the water inlet 22 at the bottom of the upper water storage part 1a, the top of the upper water storage part 1a is provided with a mesh protective cover, and the bottom of the lower water storage part 1b is provided with a drain Water outlet, the drain valve is provided with a drain valve 19, the connecting pipe between the defrosting water collecting pan 8 and the air-conditioning water collecting tank 14 is provided with a check valve 21, and the condensed water collecting pan 13 A check valve 21 is provided on the connection pipe between the air-conditioning water collection tank 14, and a mesh protective cover is provided on the top of the air-conditioning water collection tank 14. Between the output end of the water pump 15 and the upper water storage part 1a The connecting pipe is provided with a check valve 21.

Working process of the present invention:

In the working process of the rainwater, condensed water, and defrosting water utilization device of the roof machine, the defrosting water collecting pan 8 and the condensing water collecting pan 13 are respectively connected to water pipes at the bottom of the two water pans, and non-return is arranged on the pipes. Valve 21, the recovered defrosting water and condensed water are sent to the air-conditioning water collection tank 14. When the water level of the air-conditioning water collection tank 14 reaches a certain height, the water pump 15 starts to lift the water to the rainwater collection tank 1, and the upper storage of the rainwater collection tank 1 The bottom of the water part 1a is provided with a water intake 18. Since the water in the water tank will be mixed with dust and other sundries, the system only takes clean water from the upper part of the water intake 18. The water intake 18 is provided with a water filter 2, and the output end of the water filter 2 is provided with The first electromagnetic valve 3 and the second electromagnetic valve 4. The outer fin heat exchanger shower 5 has an outdoor fin heat exchanger 6 at its lower part.

The top of the air-conditioning box is provided with a rainwater collection box 1, and the rainwater collection box 1 includes an upper water storage part 1a and a lower water storage part 1b, and the lower water storage part 1b accommodates part of the water and bears the weight of the upper water storage part 1a. Drain valve 19 is used for cleaning waste water regularly, and the length and width of lower water storage part 1b are all greater than the length and width of air-conditioning box, which is beneficial to the sun protection and rainproof of the unit and the gravitational potential energy of the water tank. The upper end of the upper water storage part 1a is provided with an extended extension 20, and the extended extension 20 has a certain inclination angle, which can be used to collect more rainwater, and a mesh structure is laid on the top of the extended edge to prevent debris from entering.

Recovery water circuit: during summer working conditions, the first solenoid valve 3 is opened, the second solenoid valve 4 is closed, and the fourth solenoid valve 17 is closed. When the water level of the air-conditioning water collection tank 14 reaches a certain height, the water pump 15 starts to lift the part of the water to the rainwater collection tank 1, enters the water filter 2 through the water intake 18 of the water tank for filtration, and enters the outer fin through the first electromagnetic valve 3. The sprayer 5 of the sheet heat exchanger uses the heat pump fan to spray to improve the condensation efficiency; in winter working conditions, the second solenoid valve 4 is opened, the first solenoid valve 3 is closed, and the fourth solenoid valve 17 is opened. When the air-conditioning water collection tank 14 When the water level reaches a certain height, the water pump 15 starts to lift the part of the water to the rainwater collection tank 1, enters the water filter 2 through the water intake 18 of the water tank for filtration, and enters the wet film humidification section 11 through the second solenoid valve 4 as a spray Water sprays the wet film for air humidification in winter.

Refrigerant circuit: during summer working conditions, the first solenoid valve 3 is opened, the second solenoid valve 4 is closed, and the fourth solenoid valve 17 is closed. The refrigerant passes through the surface cooling section and the heating section heat exchanger 12, absorbs the heat in the outside air, vaporizes into a low-temperature and low-pressure gas, enters from the d port of the third solenoid valve 16, enters the compressor 7 through the c port, and is compressed into The high-temperature and high-pressure gas enters from the third solenoid valve 16a, enters the outdoor finned heat exchanger 6 through the b-port, sprays the high-efficiency cooling refrigerant through the heat pump fan, and liquefies the refrigerant into a low-temperature and high-pressure gas-liquid mixture, and enters the rainwater collection tank 1 The subcooling heat exchanger 10 is used for subcooling, the low-temperature and high-pressure refrigerant enters the throttle valve 9 to reduce the pressure, and finally the low-temperature and low-pressure liquid returns to the surface cooling section and the heating section heat exchanger 12 to form a refrigeration circuit; during winter working conditions, The second solenoid valve 4 is opened, the first solenoid valve 3 is closed, and the fourth solenoid valve 17 is opened. In the heating stage, the refrigerant releases heat to the air in the surface cooling section and the heating section heat exchanger 12, and passes through the throttle valve 9 to reduce the pressure. Through the fourth electromagnetic valve 17, it enters the outdoor finned heat exchanger 6 to absorb the outdoor heat and vaporizes, enters from the third electromagnetic valve 16b port, passes through the c port, enters the compressor 7 for compression, and the high-temperature and high-pressure refrigerant flows from the third electromagnetic valve 16a mouth, through d mouth, back to the surface cooling section and the heat exchanger 12 of the heating section to form a heating loop.

The invention can supercool the refrigerant in summer, effectively reduce the condensation temperature of the outdoor fin heat exchanger by system spraying, humidify the air in winter, and effectively recycle rainwater, condensed water, and defrosting water resources in heating and cooling seasons ; Improve the height of the water tank to directly use the gravitational potential energy of the water to do work, which is beneficial to energy saving; prevent the sun from shining on sunny days, and prevent rain from pouring water on rainy days, effectively reducing the adverse influence of the air conditioning unit from the external environment, reducing its surface temperature and thus reducing the shell of the unit. Waterproof requirements, reducing production costs and maintenance costs.

The above-mentioned embodiment is an illustration of the present invention, not a limitation of the present invention, and any solution after a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims (6)

1. a roof machine rainwater, condensed water, defrost water utilization apparatus, it is characterized in that: comprise rainwater collection header (1), water filter (2), first magnetic valve (3), second magnetic valve (4), outer finned heat exchanger spray thrower (5), outdoor finned heat exchanger (6), compressor (7), defrosting water water-collecting tray (8), choke valve (9), heat exchanger (10), surface cooling section and bringing-up section heat exchanger (12), condensate water water-collecting tray (13), air conditioner water collects water tank (14), water pump (15), 3rd magnetic valve (16) and the 4th magnetic valve (17), described rainwater collection header (1) is communicated with the input of water filter (2), the output of described water filter (2) is connected with the input of the first magnetic valve (3) and the second magnetic valve (4) respectively, the output of described second magnetic valve (4) is connected with wet-film humidifying section (11), the output of described first magnetic valve (3) is connected with outer finned heat exchanger spray thrower (5), one end of described outdoor finned heat exchanger (6) is connected with the b mouth of the 3rd magnetic valve (16), the a mouth of described 3rd magnetic valve (16) is connected with the two-port of compressor (7) respectively with c mouth, the d mouth of described 3rd magnetic valve (16) is connected with one end of surface cooling section and bringing-up section heat exchanger (12), described surface cooling section is connected by choke valve (9) one end with heat exchanger (10) with the other end of bringing-up section heat exchanger (12), described heat exchanger (10) is located in rainwater collection header (1), the other end of described heat exchanger (10) is connected with the other end of outdoor finned heat exchanger (6), the other end of described outdoor finned heat exchanger (6) is connected with one end of heat exchanger (10) by the 4th magnetic valve (17), defrosting water water-collecting tray (8) and condensate water water-collecting tray (13) are all collected water tank (14) and are communicated with air conditioner water, the bottom that input and the air conditioner water of described water pump (15) collect water tank (14) is communicated with, the output of described water pump (15) is communicated with rainwater collection header (1).

2. a kind of roof machine rainwater as claimed in claim 1, condensed water, defrost water utilization apparatus, it is characterized in that: the top of described air-conditioning box is provided with rainwater collection header (1), described rainwater collection header (1) comprises water storage part (1a) and lower water storage part (1b), the size of described upper water storage part (1a) is greater than the size of lower water storage part (1b), the length of described lower water storage part (1b) and width are all greater than length and the width of air-conditioning box, the upper end of described upper water storage part (1a) is provided with expansion along limit (20), described expansion is prolonged limit (20) and is had certain angle of inclination.

3. a kind of roof machine rainwater as claimed in claim 2, condensed water, defrost water utilization apparatus, it is characterized in that: the bottom of described upper water storage part (1a) is provided with intake (18), the input of described water filter (2) is communicated with intake (18), the output of described water pump (15) is communicated with the water inlet (22) of the bottom of upper water storage part (1a), and the top of described upper water storage part (1a) is provided with net-shaped protective cover.

4. a kind of roof machine rainwater as claimed in claim 2, condensed water, defrost water utilization apparatus, is characterized in that: the bottom of described lower water storage part (1b) is provided with discharge opening, and described discharge opening is provided with drain valve (19).

5. a kind of roof machine rainwater as claimed in claim 1, condensed water, defrost water utilization apparatus, it is characterized in that: described defrosting water water-collecting tray (8) and the air conditioner water tube connector collected between water tank (14) are provided with check-valves (21), described condensate water water-collecting tray (13) and the air conditioner water tube connector collected between water tank (14) are provided with check-valves (21), and the top that described air conditioner water collects water tank (14) is provided with net-shaped protective cover.

6. a kind of roof machine rainwater according to any one of claim 1 to 5, condensed water, defrost water utilization apparatus, is characterized in that: the tube connector between the output of described water pump (15) and upper water storage part (1a) is provided with check-valves (21).