CN212746971U

CN212746971U - Liquid inlet and outlet structure of condensing coil

Info

Publication number: CN212746971U
Application number: CN202021663373.4U
Authority: CN
Inventors: 郑效东
Original assignee: SHANGHAI DONGFULONG PHARMACEUTICAL EQUIPMENT MANUFACTURING CO LTD
Current assignee: SHANGHAI DONGFULONG PHARMACEUTICAL EQUIPMENT MANUFACTURING CO LTD
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-03-19
Anticipated expiration: 2030-08-11

Abstract

The utility model discloses a condenser coil business turn over liquid structure includes: a plurality of liquid inlet pipes and liquid return pipes which are respectively connected with the inlet and the outlet of the condensing coil of the condenser; wherein a liquid inlet and separating mechanism is arranged between the liquid inlet pipe and the inlet of the condensing coil pipe; a liquid returning and separating mechanism is arranged between the liquid returning pipe and the outlet of the condensing coil pipe. The utility model discloses a thereby solved the resistance that causes of liquid outlet position difference, length difference among the current equipment is different, makes to divide liquid inhomogeneous, and the problem that the uniformity is poor has solved because divide the inhomogeneous heat exchange efficiency who causes of liquid low and the inhomogeneous scheduling problem that frosts, has retrencied the structure greatly, has reduced the branch liquid structure and has processed the technology degree of difficulty in the manufacture process, has improved production efficiency.

Description

Liquid inlet and outlet structure of condensing coil

Technical Field

The utility model relates to a condensing coil business turn over liquid structure.

Background

The condenser belongs to the important part among refrigeration and the freeze-drying system, and receive space restriction increase heat transfer area and need increase its heat transfer area such as pipe fitting bending spiral, need the multiunit compressor to realize through the liquid branch method of feed liquor this moment. As shown in fig. 1, a conventional liquid separation head structure 100 is composed of three parts, namely a liquid separation head cover 101, a liquid separation head base 102 and a capillary 103. Fig. 2 shows a conventional coil and liquid inlet and return structure, in which a compressor feeds a refrigerant to a liquid separation head 100 through a liquid inlet pipe 200, then the refrigerant is separated into each set of coils 300 through a capillary tube 103 on the liquid separation head, and finally the refrigerant is collected to a liquid return pipe 400 through each set of coils 300. However, the problems of unstable flow, uneven flow and the like may exist due to the difference of the positions of the openings of the liquid separation head 100 and the capacity, and the pressure at the position of the liquid outlet of each group of coil pipes 300 is different due to the fact that each group of coil pipes 300 is directly welded with the liquid return pipe 400, so that the problems of inconsistent heat exchange efficiency, incomplete evaporation, uneven frosting, incomplete defrosting and the like of each group of coil pipes 300 are caused.

Disclosure of Invention

The utility model aims at solving the above-mentioned problem and providing a condensing coil business turn over liquid structure, thereby solved the resistance that liquid outlet position is different among the current equipment, the length difference causes different, make to divide liquid inhomogeneous, the problem that the uniformity is poor has solved because divide the inhomogeneous heat exchange efficiency who causes of liquid low and the inhomogeneous scheduling problem of frosting, has retrencied the structure greatly, has reduced and has divided the liquid structure and process the technology degree of difficulty in the manufacture process, has improved production efficiency.

The purpose of the utility model is realized like this:

the utility model discloses a condensing coil business turn over liquid structure includes:

a plurality of liquid inlet pipes and liquid return pipes which are respectively connected with the inlet and the outlet of the condensing coil of the condenser;

the liquid inlet pipe is communicated with one end of the first pipe fitting, one end of the three second pipe fittings is connected with the other end of the first pipe fitting, the other ends of the three second pipe fittings are respectively connected with one condensing coil, and the length of each second pipe fitting is equal to the sum of the lengths of the condensing coil connected with the second pipe fitting;

a liquid return and separation mechanism is arranged between the liquid return pipe and the outlet of the condensing coil and comprises a third pipe fitting and three fourth pipe fittings, the liquid return pipe is communicated with one end of the third pipe fitting, one ends of the three fourth pipe fittings are connected with the other end of the third pipe fitting, the other ends of the three fourth pipe fittings are respectively connected with one condensing coil, and the length of each third pipe fitting is equal to the sum of the lengths of the condensing coils connected with the third pipe fitting;

the liquid inlet pipe and the first pipe fitting, the first pipe fitting and the second pipe fitting, the liquid return pipe and the third pipe fitting, and the third pipe fitting and the fourth pipe fitting are connected in a pipe plate welding mode;

the first pipe fitting and the third pipe fitting are both positioned above the condensing coil, and the lower ends of the first pipe fitting and the third pipe fitting are vertically identical.

One end of each of the three second pipe fittings in the liquid inlet and outlet structure of the condensing coil is connected with the pipe wall of the other end of the first pipe fitting, and the included angle between the axes of the joints of the two adjacent second pipe fittings and the first pipe fitting is 120 degrees.

One end of each of the three fourth pipe fittings in the liquid inlet and outlet structure of the condensing coil is connected with the pipe wall of the other end of each of the third pipe fittings, and the included angle between the axes of the joints of the two adjacent fourth pipe fittings and the third pipe fittings is 120 degrees.

The inner cavity volume of the first pipe fitting in the liquid inlet and outlet structure of the condensing coil is larger than that of the third pipe fitting.

The utility model discloses a thereby solved the resistance that causes of liquid outlet position difference, length difference among the current equipment is different, makes to divide liquid inhomogeneous, and the problem that the uniformity is poor has solved because divide the inhomogeneous heat exchange efficiency who causes of liquid low and the inhomogeneous scheduling problem that frosts, has retrencied the structure greatly, has reduced the branch liquid structure and has processed the technology degree of difficulty in the manufacture process, has improved production efficiency.

Drawings

FIG. 1 is a schematic diagram of a liquid separation head of conventional design;

FIG. 2 is a schematic diagram of a condenser coil and a liquid inlet/return pipe of a conventional condenser;

FIG. 3 is a connection diagram of the liquid inlet pipe and the liquid inlet and separating mechanism of the present invention;

FIG. 4 is a left side view of FIG. 3;

fig. 5 is a connection state diagram of the liquid return pipe and the liquid return and distribution mechanism of the present invention;

FIG. 6 is a left side view of FIG. 5;

fig. 7 is a using state diagram of the liquid inlet and outlet structure of the condensing coil pipe of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 3 to 6, the liquid inlet and outlet structure of the condensing coil according to the present invention is shown, which includes:

a plurality of liquid inlet pipes 200 and liquid return pipes 400 connected to the inlet and outlet of the condensing coil 300 of the condenser 700;

a liquid inlet and separating mechanism 500 is arranged between the liquid inlet pipe 200 and the inlet of the condensing coil 300 and comprises a first pipe 501 and three second pipes 502, the liquid inlet pipe 200 is communicated with one end of the first pipe 501, one ends of the three second pipes 502 are uniformly distributed on the pipe wall of the other end of the first pipe 501 and communicated with the pipe wall, the three second pipes 502 are respectively connected with the condensing coil 300, and the length of each second pipe 502 is equal to the sum of the lengths of the condensing coils 300 connected with the second pipe 502;

a liquid return and separation mechanism 600 is arranged between the liquid return pipe 400 and the outlet of the condensing coil 300, and comprises a third pipe 601 and three fourth pipes 602, the liquid return pipe 400 is communicated with one end of the third pipe 601, one ends of the three fourth pipes 602 are uniformly distributed on the pipe wall of the other end of the third pipe 601 and communicated with the pipe wall, the other ends of the three fourth pipes 602 are respectively connected with one condensing coil 300, and the length of each third pipe 602 is equal to the sum of the lengths of the condensing coils 300 connected with the third pipe 602;

the liquid inlet pipe 200 and the first pipe 501, the first pipe 501 and the second pipe 502, the liquid return pipe 400 and the third pipe 601, and the third pipe 601 and the fourth pipe 602 are all connected by a pipe plate welding manner.

The first pipe 501 and the third pipe 601 are both located above the condensing coil 300 and the lower ends of the first pipe 501 and the third pipe 601 are at the same height.

As shown in fig. 7, three liquid inlet pipes 200 and three liquid return pipes 400 are connected to the inlet and outlet of the condensing coil 300 of the condenser 700.

The utility model discloses an in the use, the refrigerant passes through the compressor compression and gets into first pipe fitting 501 through feed liquor pipe 200, owing to the velocity of flow very fast can be with in the first pipe fitting 501 fill up the even dispersion of back rethread second pipe fitting 502 to condenser coil 300. At this time, the sum of the lengths of each second pipe 502 and the connected condensing coil 300 is equal, so that the resistance of the refrigerant on the pipeline can be ensured to be consistent. After heat exchange through the condenser coil 300, the heat-exchanged water flows into the fourth pipe 602, and several groups of the heat-exchanged water are collected in the third pipe 601, and the heat-exchanged water flows out from the liquid return pipe 400 after the third pipe 601 is filled. Because the third pipe 601 needs to be filled, the pressure of the cooling medium return liquid in each pipeline is consistent, and the length of each group of air return pipes needs to be ensured to be consistent at the same time.

The manufacturing structure of the utility model is simpler than the existing design, and the manufacturing difficulty is reduced; the risk of refrigerant leakage is reduced and the cleanliness is ensured simultaneously by the way of welding the tube plate; solves a series of problems caused by uneven liquid separation. The problem of among the existing equipment the resistance that the liquid outlet position is different, the length difference causes is different, makes to divide liquid inhomogeneous, and the uniformity is poor is solved because divide liquid inhomogeneous heat exchange efficiency who causes low and the inhomogeneous scheduling problem that frosts, has retrencied the structure greatly, has reduced the liquid structure and has processed the technology degree of difficulty in the manufacture process, has improved production efficiency.

The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can make various changes or modifications without departing from the spirit and scope of the present invention, therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.

Claims

1. The utility model provides a condenser coil business turn over liquid structure which characterized in that, it includes:

the liquid inlet pipe is communicated with one end of the first pipe fitting, one end of the three second pipe fittings is connected with the other end of the first pipe fitting, the other ends of the three second pipe fittings are respectively connected with one condensing coil, and the length of each second pipe fitting is equal to the sum of the lengths of the condensing coil pipes connected with the second pipe fitting;

the first pipe fitting and the third pipe fitting are both located above the condensing coil and the lower ends of the first pipe fitting and the third pipe fitting are vertically the same.

2. A condenser coil liquid inlet and outlet structure as claimed in claim 1, wherein one end of each of the three second pipe members is connected to the wall of the other end of the first pipe member, and the included angle between the axes of the joints of the two adjacent second pipe members and the first pipe member is 120 °.

3. A condenser coil liquid inlet and outlet structure as claimed in claim 1, wherein one end of each of the three fourth tube members is connected to the wall of the other end of the third tube member, and the included angle between the axes of the joints between the adjacent two fourth tube members and the third tube member is 120 °.

4. A condensing coil liquid inlet and outlet arrangement as claimed in claim 1 wherein the first tube member has a greater internal cavity volume than the third tube member.