CN216481669U

CN216481669U - Layout structure of four frequency conversion systems

Info

Publication number: CN216481669U
Application number: CN202122483167.6U
Authority: CN
Inventors: 吴海斌; 李建铭; 雷朋飞; 张利; 蔡远登
Original assignee: Guangdong PHNIX Eco Energy Solution Ltd
Current assignee: Guangdong PHNIX Eco Energy Solution Ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-05-10
Anticipated expiration: 2031-10-14

Abstract

The utility model discloses a layout structure of a frequency conversion four-system, which comprises an electric cabinet, an outer box body, four compressors, four gas-liquid separators, a tank heat exchanger and four plate heat exchangers, wherein the tank heat exchanger and the electric cabinet are respectively fixed at two ends of a chassis, so that the weights of the tank heat exchanger and the electric cabinet on the chassis can be matched to maintain the balance of the whole device; the four compressors are respectively positioned on two sides of the tank heat exchanger in pairs; each gas-liquid separator is correspondingly arranged near each compressor; each plate heat exchanger is correspondingly arranged near each gas-liquid separator, the layout design is reasonable, the structural space is fully utilized, the congestion is avoided, the occupied area is reduced, the distribution of each component is in a corresponding rule, and the rapid installation and after-sale maintenance during production are facilitated.

Description

Layout structure of four frequency conversion systems

Technical Field

The utility model belongs to the technical field of heat pumps, and particularly relates to a layout structure of a frequency conversion four-system.

Background

At present, heat pumps and air conditioning units are developing towards the frequency conversion of large number, but are limited by the displacement problem of the current frequency conversion compressors, and if 60-80 heat pumps and air conditioning units use compressors of structures such as scrolls, the number of the commonly used compressors is 4, namely 4 systems are needed to meet the development requirement of the large number of units. In particular, the system is more complex, which requires a larger space for system layout, otherwise, the layout is crowded, and the system is difficult to repair and produce, especially, the maintenance operation of some vulnerable parts is difficult. On the other hand, when the investment is made, the occupied area of the unit is an index which is needed to be considered by an engineer, so that how to arrange the frequency conversion four-system which is convenient for production and after-sale maintenance in the box space with small occupied area becomes a problem which needs to be considered by research and development designers of heat pumps and air conditioning units.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides a layout structure of a frequency conversion four-system, which has the advantages of reasonable layout, small required space and convenient production and after-sale maintenance.

The utility model adopts the following technical scheme:

a layout structure of a frequency conversion four-system comprises an electric cabinet, an outer box, four compressors, four gas-liquid separators, a tank heat exchanger and four plate heat exchangers, wherein the compressors, the gas-liquid separators, the tank heat exchangers and the plate heat exchangers are connected through a pipe body and a valve body to form four-system pipelines and are controlled by the electric cabinet; the outer box body comprises a chassis and a plurality of plate bodies;

the tank heat exchanger and the electric cabinet are respectively fixed at two ends of the chassis and are positioned on the center line of the chassis along the length direction;

and the four compressors are arranged at two sides of the tank heat exchanger in a group, and the gas-liquid separator and the plate heat exchanger are respectively fixed on the chassis in a one-to-one correspondence manner with the compressors.

As a further improvement of the technical scheme of the utility model, the water inlet and the water outlet of the tank heat exchanger are flush with the edge of the chassis.

As a further improvement of the technical scheme of the utility model, the assembly angles of the compressors positioned on the same side of the tank heat exchanger are the same.

As a further improvement of the technical scheme of the utility model, a mounting gap for mounting the noise elimination structure is reserved on the periphery of the compressor.

As a further improvement of the technical scheme of the utility model, the gas-liquid separator is connected with a four-way reversing valve, the four-way reversing valve is fixed above the gas-liquid separator, and a pipe body connected with the four-way reversing valve is fixed on the chassis through a pipe clamp.

As a further improvement of the technical solution of the present invention, the installation position on the chassis corresponding to the gas-liquid separator is a first position, the installation position on the chassis corresponding to the pipe clamp is a second position, and the height of the first position in the horizontal direction is lower than the height of the second position in the horizontal direction.

As a further improvement of the technical scheme of the utility model, the chassis comprises a plurality of convex beams which are arranged in a staggered manner in the transverse and vertical directions, the lower end surfaces of the convex beams are flush, the first position and the second position are positioned on different convex beams, and the height of the convex beam corresponding to the first position is smaller than that of the convex beam corresponding to the second position.

As a further improvement of the technical scheme of the utility model, a one-way valve bridge circuit assembly for refrigerating and heating double enthalpy addition is further arranged on one side of the plate heat exchanger close to the electric cabinet, and an expansion valve on the one-way valve bridge circuit assembly faces outwards.

As a further improvement of the technical scheme of the utility model, the exhaust pipe and the return pipe of the four-system pipeline and the needle valves arranged on the exhaust pipe and the return pipe are all arranged outwards.

As a further improvement of the technical scheme of the utility model, the types of the pipe bodies adopted by the parts of the pipe bodies which are not connected with the tank heat exchanger and the plate heat exchanger are the same.

Compared with the prior art, the utility model has the beneficial effects that:

1. in the layout structure of the frequency conversion four-system, the tank heat exchanger and the electric cabinet are respectively arranged at two ends of the chassis, so that the tank heat exchanger and the electric cabinet can be matched in weight on the chassis to maintain the balance of the whole device, the problem of inclination is avoided during hoisting, and the electric cabinet is far away from the tank heat exchanger and the water side, so that the electricity utilization safety of a unit is ensured; each gas-liquid separator and each plate heat exchanger are respectively fixed on the chassis in a one-to-one correspondence manner with each compressor, and each component is distributed with a corresponding rule, so that the gas-liquid separator and the plate heat exchanger are convenient to install and maintain after sale during production;

2. this four layout structure of frequency conversion system passes through reasonable layout design, make full use of structure space, has realized the good overall arrangement of clear, the maintenance of being convenient for on the less base of area.

Drawings

The technology of the present invention will be described in further detail with reference to the accompanying drawings and detailed description below:

FIG. 1 is a top view schematic structural view of the layout structure of the present variable frequency four system;

fig. 2 is a side view of the layout structure of the present variable frequency four-system.

Reference numerals:

10-an electric cabinet; 20-an outer box body; 201-a chassis; 2011-convex beam; 202-plate body; 30-a compressor; 40-a gas-liquid separator; a 401-four-way reversing valve; a 50-tank heat exchanger; 501-a water inlet; 502-water outlet; 60-plate heat exchanger; 601-enthalpy-increasing electronic expansion valve; 602-pipe connection of plate heat exchanger; 70-pipe clamp; 80-a check valve bridge assembly; 801-double electronic expansion valve; 90-an exhaust pipe; 100-muffler; 110-needle valve.

Detailed Description

The conception, the specific structure and the technical effects of the present invention will be clearly and completely described in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the schemes and the effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The same reference numbers will be used throughout the drawings to refer to the same or like parts.

It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Further, the description of the upper, lower, left, right, etc. used in the present invention is only with respect to the positional relationship of the respective components of the present invention with respect to each other in the drawings.

Referring to fig. 1 and 2, a layout structure of a frequency conversion four-system includes an electric cabinet 10, an outer box 20, four compressors 30, four gas-liquid separators 40, a tank heat exchanger 50, and four plate heat exchangers 60.

The compressor 30, the gas-liquid separator 40, the tank heat exchanger 50 and the plate heat exchanger 60 are connected through a pipe body and a valve body to form a four-system pipeline, so that the requirement of the displacement of the variable frequency compressor 30 is met. And the compressor 30, the gas-liquid separator 40, the tank heat exchanger 50 and the plate heat exchanger 60 are controlled by the electric cabinet 10, and normal work is completed under the control of the electric cabinet 10. The heat exchange efficiency of the tank heat exchanger 50 is higher compared to the plate heat exchanger 60. The specific connection of the four-system pipeline is only required by referring to a conventional four-system pipeline connection mode, and the key point of the utility model is not the connection principle of the pipeline, the connection principle is not adjusted, but the specific position layout is changed, so the specific connection of the four-system pipeline is not repeated herein.

The outer box body 20 includes a chassis 201 and a plurality of plate bodies 202, the plate bodies 202 may be provided with 5 pieces, which are respectively used as a front panel, a rear panel, a left panel, a right panel and a top plate, and the chassis 201 is matched to form a box body, and all parts and pipelines of the frequency conversion four-system are contained in the box body.

The layout structure of the four frequency conversion systems has the following specific layout of each part in the outer box body 20:

as shown in fig. 1, the tank heat exchanger 50 and the electric cabinet 10 are respectively fixed at two ends of the chassis 201 and located on a central line of the chassis 201 along the length direction, so that the two can cooperate with each other in weight on the chassis 201 to maintain the balance of the whole device, the problem of inclination is avoided during hoisting, the electric cabinet 10 is far away from the tank heat exchanger 50, the tank heat exchanger 50 is connected with a water circuit during operation, so that the electric cabinet 10 is far away from the water side, the short circuit of the electric cabinet 10 caused by leakage of the water circuit is avoided, and the power utilization safety of the unit is ensured. In one embodiment, the tank heat exchanger 50 is fixed at the middle position of the right end of the chassis 201, the electric cabinet 10 is fixed at the middle position of the left end of the chassis 201, and both the tank heat exchanger 50 and the electric cabinet 10 are fixedly connected with the chassis 201 through bolts.

The four compressors 30 are respectively located at two sides of the tank heat exchanger 50 in pairs, and each gas-liquid separator 40 and the plate heat exchanger 60 are respectively fixed on the base plate 201 in a one-to-one correspondence with each compressor 30.

In one embodiment, two compressors 30 are fixed on the chassis 201 at two sides of the tank heat exchanger 50, specifically, at the front and rear sides, respectively, and two compressors 30 on the same side are arranged at intervals from left to right. The four gas-liquid separators 40 are respectively arranged on one side of the four compressors 30 close to the electric cabinet 10 in a one-to-one correspondence manner, specifically, two gas-liquid separators 40 are arranged on the front side of the tank heat exchanger 50 and respectively close to the compressors 30, and the other two gas-liquid separators 40 are arranged on the rear side of the tank heat exchanger 50 and correspond to the first two gas-liquid separators 40 in position. The four plate heat exchangers 60 are respectively arranged on one side of the four gas-liquid separators 40 close to the electric cabinet 10 in a one-to-one correspondence manner, specifically, two plate heat exchangers 60 are arranged on the front side of the tank heat exchanger 50 and close to the two compressors 30 respectively, and the other two plate heat exchangers 60 are arranged on the rear side of the tank heat exchanger 50 and correspond to the two plate heat exchangers 60.

As shown in fig. 1, the compressor 30, the gas-liquid separator 40, and the plate heat exchanger 60 are located two by two on two sides of the tank heat exchanger 50, and are symmetrically arranged to further ensure balance. In addition, with the arrangement, the front side and the rear side of the tank heat exchanger 50 are provided with parts, but the left side and the right side of the tank heat exchanger 50 are provided with no other parts, so that the tank heat exchanger 50 can be replaced after the connecting bolts of the tank heat exchanger 50 and the chassis 201 are detached from proper positions on the left side and the right side when the tank heat exchanger 50 needs to be replaced in the future, and the tank heat exchanger is convenient for being detected and maintained by colleagues after sale. In one embodiment, the plate heat exchanger 60 is connected and fixed with the base plate 201 through a plate heat exchanger bracket. The assembly angles of the compressors 30 located on the same side of the tank heat exchanger 50 are the same, that is, the assembly angles of the two compressors 30 on the same side are the same, so that the pipeline trend and subsequent maintenance can be conveniently checked.

Furthermore, the electrical apparatus box of compressor 30 sets up outwards, each plate heat exchanger 60 all is connected with the expansion valve, the expansion valve with plate heat exchanger 60's pipeline interface all sets up towards the outside, and these parts set up outwards, and is more convenient when the installation, need not to stretch into hand, work piece spare part inboard and go to install, when maintaining, only need pull down plate body 202 of outer box 20 and can observe these parts immediately, the easy access circuit, and then judge whether break down, and it is also more convenient when carrying out corresponding maintenance operation. In one embodiment, the expansion valve of the plate heat exchanger 60 is an enthalpy-increasing electronic expansion valve 601.

As a preferred embodiment of the present invention, the water inlet 501 and the water outlet 502 of the tank heat exchanger 50 are flush with the edge of the chassis 201, as shown in fig. 1, the water inlet pipe and the water outlet pipe of the tank heat exchanger 50 are both located at the front side of the tank heat exchanger 50, as shown in fig. 2, the water inlet pipe is located below the water outlet pipe, and the water inlet 501 of the water inlet pipe and the water outlet 502 of the water outlet pipe both extend to the left side but are flush with the chassis 201 in the longitudinal direction, so that the water gap can be better protected from being damaged. In one embodiment, the water inlet 501 and the water outlet 502 are flush with the right side of the chassis 201; other structural requirements may also extend beyond the base by a certain amount, but it is recommended that the size of the wooden base is not exceeded.

As shown in fig. 1, a mounting gap for mounting the sound-deadening structure is reserved on the periphery of the compressor 30, and the periphery of the compressor 30 is specifically arranged to be spaced from other parts by a certain distance and not to be in contact with other parts, so that the mounting gap is formed, and if the requirement on unit noise is high, sound-deadening cotton of the compressor 30 and a sound-deadening cover for mounting the compressor 30 can be wrapped in the mounting gap.

As shown in fig. 1 and 2, the gas-liquid separator 40 is connected with a four-way reversing valve 401, the four-way reversing valve 401 is fixed above the gas-liquid separator 40 and directly connected with the gas-liquid separator 40 through a straight pipe, and a pipe body connected with the four-way reversing valve 401 is fixed on the chassis 201 through a pipe clamp 70. Specifically, the pipe body connecting the port D and the port E of the four-way reversing valve 401 is fixed on the convex beam of the base by the pipe clamp 70 after the gas-liquid separator 40 is opened, so that the fatigue damage of the welded junction part caused by switching the four-way valve for a long time is avoided, and the reliability of the four-way reversing valve 401 is ensured. The pipe clamp 70 may be a copper pipe to fix the pipe clamp 70.

As shown in fig. 2, since the four-way reversing valve 401 is installed above the gas-liquid separator 40, in order to make the pipeline of the exhaust gas entering the four-way reversing valve 401 have a large gap from the top plate of the upper part of the four-way reversing valve, the installation position of the chassis 201 corresponding to the gas-liquid separator 40 is a first position, and the installation position of the chassis 201 corresponding to the pipe clamp 70 is a second position, and the first position is lower than the second position in the horizontal direction, that is, the chassis 201 is installed at a lower position, so as to reduce the height of the four-way reversing valve 401 after the gas-liquid separator 40 is installed, and thus the pipeline of the four-way reversing valve 401 has a gap with the upper structure (for example, the sheet metal structure of the housing). In one embodiment, the chassis 201 includes a plurality of protruding beams 2011 arranged in a staggered manner, the lower end surface of each protruding beam 2011 is flush, so as to be stably placed, the first position and the second position are located on different protruding beams, the height of the protruding beam 2011 corresponding to the first position is smaller than the height of the protruding beam 2011 corresponding to the second position, the height of the protruding beam installed by the pipe clamp 70 and other part structures is larger, the installation height is higher, the installation position of the gas-liquid separator 40 is lower, and therefore the relative height of the gas-liquid separator 40 after installation can be reduced. Since the chassis 201 needs to bear the weight of many parts, the chassis 201 needs sufficient strength, and for this reason, a plurality of protruding beams 2011 staggered horizontally and vertically are adopted in the chassis 201, so that sufficient supporting strength is provided without deformation.

In addition, as shown in fig. 2, a one-way valve bridge assembly 80 for refrigerating and heating double enthalpy gain is further disposed near the plate heat exchanger 60 on a side close to the electric cabinet 10, and an expansion valve on the one-way valve bridge assembly 80 is disposed toward an outside, so that the plate 202 of the outer box 20 can be seen from a large angle and a sufficient operation space can be provided after the plate body 202 is disassembled. In addition, the tube of the check valve bridge assembly 80 is also secured to the base flange by a tube clamp 70. Wherein, the expansion valve on the one-way valve bridge circuit assembly 80 is a dual electronic expansion valve 801.

As a preferred embodiment of the present invention, the exhaust pipe 90, the return pipe 100 and the needle valve 110 disposed on the exhaust pipe 90 and the return pipe 100 of the four-system pipeline are all disposed outward, so that the components can be seen from a large viewing angle after the plate body 202 of the outer box 20 is disassembled, and sufficient operation space is provided, thereby greatly improving the production and after-sales maintenance efficiency.

As a preferred embodiment of the present invention, the types of the pipe bodies used in the portions of the pipe bodies that are not connected to the tank heat exchanger 50 and the plate heat exchanger 60 are the same, that is, the pipes are unified, the pipe bodies of one specification are used, the types of materials of the whole machine are reduced, the materials between systems do not need to be distinguished during production, and the production efficiency is improved.

Other contents of the layout structure of the frequency conversion four-system in the utility model are referred to the prior art and are not described herein again.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a layout structure of four systems of frequency conversion which characterized in that: the compressor, the gas-liquid separator, the tank heat exchanger and the plate heat exchanger are connected through a pipe body and a valve body to form four system pipelines and are controlled by the electric cabinet; the outer box body comprises a chassis and a plurality of plate bodies;

the tank heat exchanger and the electric cabinet are respectively fixed at two ends of the chassis and are positioned on the central line of the chassis along the length direction;

2. The layout structure of the frequency conversion four-system according to claim 1, characterized in that: the water inlet and the water outlet of the tank heat exchanger are flush with the edge of the chassis.

3. The layout structure of the frequency conversion four-system according to claim 1, characterized in that: the assembly angles of the compressors located on the same side of the tank heat exchanger are the same.

4. The layout structure of the frequency conversion four-system according to claim 1, characterized in that: and a mounting gap for mounting the silencing structure is reserved on the periphery of the compressor.

5. The layout structure of the frequency conversion four-system according to claim 1, characterized in that: the gas-liquid separator is connected with a four-way reversing valve, the four-way reversing valve is fixed above the gas-liquid separator, and a pipe body connected with the four-way reversing valve is fixed on the chassis through a pipe clamp.

6. The layout structure of the variable frequency four-system according to claim 5, wherein: the mounting position of the chassis corresponding to the gas-liquid separator is a first position, the mounting position of the chassis corresponding to the pipe clamp is a second position, and the height of the first position in the horizontal direction is lower than that of the second position in the horizontal direction.

7. The layout structure of the variable frequency four-system according to claim 6, wherein: the chassis comprises a plurality of convex beams which are arranged in a staggered mode in the transverse and vertical directions, the lower end faces of the convex beams are parallel and level, the first position and the second position are located on different convex beams, and the height of the convex beam corresponding to the first position is smaller than that of the convex beam corresponding to the second position.

8. The layout structure of the frequency conversion four-system according to claim 1, characterized in that: and a one-way valve bridge assembly for refrigerating and heating double enthalpy increase is further arranged on one side, close to the electric cabinet, beside the plate heat exchanger, and an expansion valve on the one-way valve bridge assembly faces outwards.

9. The layout structure of the frequency conversion four-system according to claim 1, characterized in that: the exhaust pipe and the air return pipe of the four-system pipeline are arranged with the needle valves arranged on the exhaust pipe and the air return pipe facing outwards.

10. The layout structure of the frequency conversion four-system according to claim 1, characterized in that: and the type of the pipe body adopted by the part of the pipe body, which is not connected with the tank heat exchanger and the plate heat exchanger, is the same.