CN216347169U

CN216347169U - Commercial air source heat pump structure with double U-shaped evaporators

Info

Publication number: CN216347169U
Application number: CN202123012139.2U
Authority: CN
Inventors: 韦杰; 王文虎
Original assignee: Cardiff Co ltd
Current assignee: Cardiff Co ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-04-19
Anticipated expiration: 2031-12-02

Abstract

The utility model provides a commercial air source heat pump structure of a double-U-shaped evaporator, which comprises a structural upright post, a partition plate triangular inclined strut arranged in the middle of the structural upright post, a partition plate arranged on the partition plate triangular inclined strut, a single-U double-arc evaporator arranged on the partition plate, a fan cover plate arranged at the top end of the structural upright post and a top air outlet fan arranged on the fan cover plate, wherein the partition plate triangular inclined strut is arranged on the partition plate; the number of the single-U double-arc-section evaporators is 2, the single-U double-arc-section evaporators are symmetrically arranged on the partition plate, and an air source heat pump unit is arranged in a space surrounded by the single-U double-arc-section evaporators; the utility model has the characteristics of system simplification, cost saving, contribution to refrigerant distribution, evaporation and heat exchange and energy consumption reduction.

Description

Commercial air source heat pump structure with double U-shaped evaporators

Technical Field

The utility model relates to a commercial air source heat pump structure with double U-shaped evaporators, belonging to the technical field of heating, ventilating and air conditioning heat pumps.

Background

The air conditioning or heat pump industry generally refers to a host with rated cooling capacity greater than 30KW as a commercial host. The commercial host is generally divided into an upper layer and a lower layer 2, the conventional method is that an evaporator is arranged at the upper part, a compressor and other refrigeration components are arranged at the lower part of an electromechanical cabin, some 2 evaporators are in a plane rectangle and are obliquely arranged, and the lower parts of the evaporators are concentrated in a drainage channel with the width of 10-15 cm, so that the problem of being not beneficial to melting ice and draining water is seriously exposed; defrosting water drops or ice blocks on the inclined surface of the evaporator are easy to fall to the electromechanical cabin at the lower part to break the parts; limited by the rectangular area of the heat exchanger, in order to obtain enough evaporation heat exchange quantity, 4 rows of copper pipes or even more rows of 5-6 rows are often made to meet the requirement of evaporation refrigerating capacity, so that the increase of wind resistance is caused, a fan with larger power is required to be matched, and the noise of the fan is large; some rated refrigeration capacities are greater than 130 KW's host computer, divide into 4 with the evaporimeter, single evaporimeter is 4 groups, because the existence of 1 arc structure of evaporimeter, the evaporimeter is installed immediately, though the copper pipe row number that also can reduce the evaporimeter, the windage has been reduced, windward area is little relatively, but the refrigeration capacity receives the restriction, but there is not rectangular shape through-hole row hole in the cross section bottom of evaporimeter, the water of defrosting relies on the outlet to discharge, under the big severe cold climatic condition of humidity, the frosting leads to the fact ice under serious easily and blocks up, cause the system can not normal operating. The air energy heat pump with the same rated refrigerating capacity, particularly the rated refrigerating capacity larger than 130KW, adopts 4 evaporators, necessarily needs 4 compressors to be matched with other double refrigerating components, increases the cost of a main machine, makes the system complicated, cannot fully utilize the effective space, and increases the cost and the overall dimension of the main machine with the same rated refrigerating capacity by 5% -10% compared with the double U-double arc-section large evaporator. And adopt two U double arc section evaporimeters, single evaporimeter has 2 arc structures, has increased the heat transfer area that faces the wind, can effectively utilize the effective space that structure itself reserved, and the copper pipe row number and windage, cost, the fan energy consumption that have reduced the evaporimeter are lower, and system complexity, noise all effectively improve. Especially, the large-scale unit that uses adopts two "U" double arc section big evaporators, is more favorable to the distribution and the evaporation of refrigerant.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a commercial air source heat pump structure with double 'U' evaporators, which has the advantages of simplified system, cost saving, better contribution to refrigerant distribution, evaporation and heat exchange and energy consumption reduction.

In order to solve the technical problems, the utility model adopts the technical scheme that:

a commercial air source heat pump structure with double U-shaped evaporators comprises a structural upright post, a partition plate triangular inclined strut arranged in the middle of the structural upright post, a partition plate arranged on the partition plate triangular inclined strut, a single U-shaped double-arc evaporator arranged on the partition plate, a fan cover plate arranged at the top end of the structural upright post and a top air outlet fan arranged on the fan cover plate;

the number of the single-U double-arc-section evaporators is 2, the single-U double-arc-section evaporators are symmetrically arranged on the partition plate, and an air source heat pump unit is arranged in a space surrounded by the single-U double-arc-section evaporators;

and an air duct end panel is arranged between the two symmetrical single-U double-arc section evaporators.

Furthermore, more than one drain hole is arranged on the partition plate, and the drain holes are positioned right below the lower end surface of the single U-shaped double-arc evaporator.

Furthermore, the width of the drain hole is 4-10 mm more than the thickness of the single U-shaped double-arc evaporator.

Further, a water baffle is arranged on the lower side of the drain hole.

Furthermore, the length of the water baffle is equal to that of the drain hole, and the included angle between the water baffle and the partition plate is smaller than 90 degrees.

Furthermore, the inclined edge of the triangular inclined strut of the partition plate forms an included angle smaller than 20 degrees with the horizontal direction.

Furthermore, a supporting upright post is arranged in the middle of the side edge of the triangular inclined strut of the clapboard.

Furthermore, the supporting upright post is provided with a vent hole.

Further, the ratio of the width to the length of the single-U double-arc evaporator and the partition plate is 1: 2.

Furthermore, the lower part of the partition plate triangular inclined strut is provided with a wire groove along the length direction of the single-U double-arc evaporator, and the length of the wire groove is equal to that of the single-U double-arc evaporator.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

the utility model relates to a commercial air source heat pump structure with double U-shaped evaporators, which is mainly suitable for an air energy heat pump unit with rated refrigerating capacity larger than 130KW, and adopts two large single U-shaped double-arc evaporators matched with a high-power scroll compressor, wherein a lower electromechanical cabin and an upper evaporator are separated by 2 clapboards with 3 side drain holes, the cross section of the single U-shaped double-arc evaporator is positioned above the drain holes, and the width of the drain holes is 2mm larger than the thickness of the evaporator; the 2 partition plates are fixed on the bevel edges of the triangular inclined struts of the partition plates, and the inclined trend of the partition plates is outward and downward from the middle when the partition plates are seen from the width direction, so that drainage is facilitated; the air energy heat pump unit with the refrigerating capacity larger than 130KW adopts two single U double-arc evaporators to form double U double-arc evaporators, the horizontal length of the double U double-arc evaporators exceeds 3.0 m, in order to ensure that a single evaporator does not deform, 1 supporting upright post which is vertically arranged and clings to the outer surface of the evaporator is arranged at the middle position of each group of single evaporators, and a plurality of holes are punched at the reinforced middle part, so that on one hand, the ventilation is not influenced, and on the other hand, the strength of the supporting upright posts and the integral structural strength of a frame are also enhanced; for a using host with larger rated refrigerating capacity, particularly an air energy heat pump with the rated refrigerating capacity larger than 130KW, a commercial air source heat pump with double U-shaped double-arc-section evaporators is adopted, and correspondingly, a high-power double-system refrigerating system with double compressors, double evaporators, double fans and the like is adopted, compared with more than 2 (generally, an even number is 4, 6 or 8), the refrigerating system has the advantages of low integration cost, relatively simplified technology, relatively low cost, low failure rate and simplified control system, the double U-shaped evaporators can fully utilize structural space, the windward area of the evaporators is increased, the thickness or the number of rows is reduced, the wind resistance is greatly reduced, the running power of the fans is reduced, the evaporation efficiency is improved, and the uniform distribution of refrigerant evaporation is relatively easy.

Drawings

FIG. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic top view of the separator of the present invention;

FIG. 3 is a schematic cross-sectional view of the separator A-A according to the present invention;

FIG. 4 is a schematic cross-sectional view of a separator B-B according to the present invention;

FIG. 5 is a schematic front view of the present invention;

FIG. 6 is a schematic side view of the present invention

FIG. 7 is an enlarged view of the portion I of the present invention;

the system comprises a single-U double-arc evaporator 1, a single-U double-arc evaporator 2, a partition plate 201, a drain hole 202, a water baffle plate 3, a support upright post 301, a vent hole 4, a structural upright post 401, an air duct end face plate 402, a partition plate triangular inclined strut 403, a fan cover plate 404, a top air outlet fan 405, an electric wire groove 5 and an electromechanical cabin.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1-7, this embodiment provides a double "U" evaporator commercial air source heat pump structure, which includes a structural column 4, a partition triangular diagonal brace 402 disposed in the middle of the structural column 4, a partition 2 disposed on the partition triangular diagonal brace 402, a single U double-arc evaporator 1 disposed on the partition 2, a fan cover plate 403 disposed on the top end of the structural column 4, and a top outlet fan 404 disposed on the fan cover plate 403; the number of the single-U double-arc-section evaporators 1 is 2, the single-U double-arc-section evaporators are symmetrically arranged on the partition plate 2, and an air source heat pump unit is arranged in a space surrounded by the single-U double-arc-section evaporators 1; an air duct end panel 401 is arranged between two symmetrical single-U double-arc-section evaporators 1, and a frame structure of a commercial air source heat pump of a double-U evaporator is formed by a structural upright post 4, a partition plate triangular inclined strut 402 and a support upright post 3; wherein a plurality of baffle triangular inclined struts 402 are arranged in the middle of a vertical structure upright post 4, a left baffle 2 and a right baffle 2 with drain holes are arranged on the inclined edge of the baffle triangular inclined struts 402, the whole host is divided into an upper compartment and a lower compartment, the periphery of the upper part is formed by maintaining the left single U-shaped double-arc evaporator 1, the left air channel end plate 401 and the right air channel end plate 401, the bottom part is provided with a relatively sealed baffle 2, the upper part is provided with a top fan cover plate 403, and 6 surfaces of a relatively sealed negative pressure compartment space are jointly formed by the left single U-shaped double-arc evaporator 1 and the right single U-shaped double-arc evaporator 401, the utility model is suitable for using the host with larger rated refrigerating capacity, in particular an air energy refrigerating heat pump with the rated more than 130KW, a commercial air source heat pump with double U-shaped double-arc evaporators, and a corresponding double-system refrigerating system with high power such as a double compressors, double evaporators, double fans and the like are adopted, compared with more than 2 (generally even number, namely 4, 6 or 8) systems, the refrigeration system has the advantages of low integration cost, relatively simplified technology, relatively low cost, low failure rate and simplified control system, the evaporator with the double-U structure can fully utilize the structural space, the windward area of the evaporator is increased, the thickness or the number of rows is reduced, the wind resistance is greatly reduced, the running power of a fan is reduced, the evaporation efficiency is improved, and the uniform distribution of refrigerant evaporation becomes relatively easy.

The partition board 2 is provided with more than one drain hole 201, the drain hole 201 is positioned under the lower end face of the single U-shaped double-arc evaporator 1, the width of the drain hole 201 is 4-10 mm larger than the thickness of the single U-shaped double-arc evaporator 1, a water baffle 202 is arranged on the lower side of the drain hole 201, the water baffle 202 is essentially a stamping and stretching part of the drain hole 201, the length of the water baffle 202 is equal to that of the drain hole 201, an included angle between the water baffle 202 and the partition board 2 is smaller than 90 degrees, defrosting water flowing down from the upper part of the evaporator 1 and the water baffle 202 which flows down from the middle part of the partition board 2 through the drain hole 201 and then is stretched down through the hole are guided to the periphery of the unit; due to the existence of the partition plate 2 and the water baffle plate 202, no water drops on the upper part of the evaporator can splash to the lower electromechanical cabin 5, and the safety of the refrigeration part in the lower electromechanical cabin 5 is ensured.

The inclined edge of the partition plate triangular inclined strut 402 and the included angle of the horizontal direction are smaller than 20 degrees, the partition plate 2 is divided into a left partition plate and a right partition plate which are arranged on the inclined surface of the partition plate triangular inclined strut 402 in the middle of the whole frame, and an outward downward inclined surface is naturally formed in the middle of the frame, so that the defrosting water flows out of the unit by means of gravity.

The middle part of the side edge of the partition triangular inclined strut 402 is provided with a support upright post 3, the length of the evaporator 1 exceeds 3 meters, and the overall structural strength is insufficient, so that the support upright post 3 is arranged in the vertical direction in the middle part of the evaporator in the length direction; a plurality of ventilation holes 301 are formed in the supporting upright 3, so that ventilation is facilitated.

The width-to-length ratio of the single-U double-arc evaporator 1 to the partition plate 2 is 1:2, and the sizes of four evaporation frontal areas formed by the evaporators are approximately the same, so that the air quantity and the flow speed of the fan are uniformly distributed from 4 evaporation surfaces, and the heat exchange efficiency of the evaporators is improved.

The lower part of baffle triangle bracing 402 is provided with wire way 405 along 1 length direction of single U double arc section evaporimeter, wire way 405 length equals with 1 length of single U double arc section evaporimeter, is convenient for walk the line, and structural design is reasonable standard.

The specific working principle is as follows:

the utility model mainly relates to a commercial air energy heat pump structure of more than 130KW, which divides an electromechanical cabin and an evaporator negative pressure cabin into an upper structure and a lower structure, the middle parts of the upper structure and the lower structure are separated by a partition plate 2 with a drainage hole 201, the 2 partition plates 2 are arranged on a partition plate triangular inclined strut 402 to form 2 inclined planes, the peripheries of the inclined planes are all provided with the drainage holes 201, and the inclined planes incline outwards and downwards from the middle parts of the inclined planes; the left and right 2 single U-shaped double-arc evaporator 1, the air duct end panel 401 and the partition plate 2 form a negative pressure cabin enclosure structure with the top being relatively sealed; 2, the fans are arranged on the top; the single U-shaped double-arc evaporator 1 is arranged above the drain hole 201, and the width of the hole is slightly more than the thickness of the evaporator by 4-10 mm so as to facilitate drainage; the left and right single U-shaped double-arc evaporator 1 is connected by plugging an air duct end panel 401, and the main machine is divided into an upper cabin structure and a lower cabin structure by a partition plate 2 with a drainage hole 201, so that defrosting and drainage are facilitated; when the same evaporation capacity, two "U" evaporimeters windward areas that two single U double arc section evaporimeters 1 enclose are bigger, make refrigerating system simple, 2 the evaporimeters compare 4 and above evaporimeter welding cost of manufacture lower, 2 the bigger compressors of single refrigerating output are taken to two U evaporimeters, every compressor corresponds a set of big U type double arc section evaporimeters of big U type and other parts, the system is greatly simplified, the cost is saved, more be favorable to refrigerant distribution evaporation heat transfer, the cost is saved, windward area can be accomplished the biggest, reduce the row's quantity of evaporimeter, thereby reduce the windage, reduce fan energy consumption and power, the noise has been reduced, efficiency improves.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to 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

1. A commercial air source heat pump structure with double U-shaped evaporators is characterized by comprising a structural upright post (4), a partition triangular inclined strut (402) arranged in the middle of the structural upright post (4), a partition (2) arranged on the partition triangular inclined strut (402), a single U-shaped double-arc-section evaporator (1) arranged on the partition (2), a fan cover plate (403) arranged at the top end of the structural upright post (4) and a top air outlet fan (404) arranged on the fan cover plate (403);

the number of the single-U double-arc-section evaporators (1) is 2, the single-U double-arc-section evaporators are symmetrically arranged on the partition plate (2), and an air source heat pump unit is arranged in a space surrounded by the single-U double-arc-section evaporators (1);

an air duct end panel (401) is arranged between the two symmetrical single-U double-arc section evaporators (1).

2. The commercial air source heat pump structure of the double U-shaped evaporator according to claim 1, characterized in that the partition plate (2) is provided with more than one drain hole (201), and the drain holes (201) are positioned right below the lower end surface of the single U-shaped double arc evaporator (1).

3. The commercial air source heat pump structure of a double U-shaped evaporator as claimed in claim 2, wherein the width of the drain hole (201) is 4-10 mm more than the thickness of the single U-shaped double arc evaporator (1).

4. A double "U" evaporator commercial air source heat pump structure according to claim 2, characterized in that a water baffle (202) is provided under the drain hole (201).

5. A double 'U' evaporator commercial air source heat pump structure according to claim 4, characterized in that the length of the water baffle (202) is equal to the length of the drain hole (201), and the included angle between the water baffle (202) and the partition plate (2) is less than 90 °.

6. A dual "U" evaporator commercial air source heat pump construction according to claim 1 wherein the oblique side of the baffle triangular brace (402) makes an angle of less than 20 ° with the horizontal.

7. A double "U" evaporator commercial air source heat pump structure according to claim 1, characterized in that the middle of the side of the partition triangular brace (402) is provided with a support pillar (3).

8. A double "U" evaporator commercial air source heat pump structure according to claim 7, characterized in that the supporting upright (3) is provided with ventilation holes (301).

9. A double "U" evaporator commercial air source heat pump structure according to claim 1, characterized in that the width to length ratio of the single U double arc evaporator (1), baffle (2) is 1: 2.

10. A double "U" evaporator commercial air source heat pump structure according to claim 1, characterized in that the lower part of the baffle triangular brace (402) is provided with an electric wire groove (405) along the length direction of the single U double arc evaporator (1), and the length of the electric wire groove (405) is equal to that of the single U double arc evaporator (1).