CN217541574U - Heat exchanger for petrochemical - Google Patents

Abstract

The utility model discloses a heat exchanger for petrochemical relates to the technical field of heat exchanger design, has solved cold in the heat exchanger, the hot-fluid flow is fast and cause the problem that heat exchange efficiency is low, including heat-transfer pipe, end plate and baffling subassembly, the inside of heat-transfer pipe is equipped with a plurality of cold liquid pipes, and a plurality of cold liquid pipes are circumference array form setting, and the one end top of heat-transfer pipe is equipped with hot drain pipe, and its other end below is equipped with hot feed liquor pipe, and the end plate is installed in the both ends of heat-transfer pipe, is used for the inside hydrothermal solution of heat-transfer pipe to shelter from, the utility model discloses a be equipped with the baffling subassembly in the inside of heat-transfer pipe and can realize playing to blockking speed limit and increase the flow time of hot-liquid in the heat-transfer pipe to the hydrothermal solution of heat-transfer pipe internal flow, have the many bends in the cold liquid pipe, increase the flow path of cold-liquid, increased the heat exchange time between hydrothermal solution and the cold liquid pipe, the effectual heat exchange efficiency that has improved the heat exchanger.

Description

Heat exchanger for petrochemical

Technical Field

The utility model relates to a technical field of heat exchanger design specifically is a heat exchanger for petrochemical.

Background

The heat exchanger is an energy-saving device for transferring heat between materials between two or more than two fluids with different temperatures, and is used for transferring heat from the fluid with higher temperature to the fluid with lower temperature to enable the temperature of the fluid to reach the index specified by the flow so as to meet the requirements of process conditions, and is also one of main devices for improving the energy utilization rate. The heat exchanger industry relates to more than 30 industries such as heating ventilation, pressure vessels, reclaimed water treatment equipment, chemical industry, petroleum and the like, and an industrial chain is formed mutually.

The shell is circular, and several parallel circular or spiral heat-transfer tubes are installed in the shell, and two ends of the heat-transfer tubes are fixed on the tube plate. Two fluids for heat exchange in the shell-and-tube heat exchanger, wherein one fluid flows in the tube, and the stroke of the fluid is called as tube pass; one type of flow outside the tube is referred to as the shell side. The wall surface of the heat transfer pipe is the heat transfer surface.

However, when the refrigerant of the existing tube type heat exchanger rapidly flows through the heat transfer tube, the refrigerant flowing through the center of the heat transfer tube cannot completely exchange heat with the heat medium outside the heat transfer tube, and the heat exchange efficiency is reduced.

Therefore, a heat exchanger for petrochemical industry is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can increase cold, hot-fluid improves heat exchange efficiency's heat exchanger for petrochemical in the time of intraductal flow to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a heat exchanger for petrochemical, includes heat-transfer pipe, end plate and baffling subassembly, the inside of heat-transfer pipe is equipped with a plurality of cold liquid pipes, and a plurality of cold liquid pipes are circumference array form and set up, the one end top of heat-transfer pipe is equipped with hot drain pipe, and its other end below is equipped with hot feed liquor pipe, the end plate install in the both ends of heat-transfer pipe are used for the inside hydrothermal solution of heat-transfer pipe shelters from, do not run through equally at the both ends of cold liquid pipe the end plate just to the outside of heat-transfer pipe extends, the baffling subassembly install in the inside of heat-transfer pipe is used for right hydrothermal solution baffling extension in the heat-transfer pipe is at intraductal flow time.

Preferably, the baffling subassembly includes first folded plate and second folded plate, second folded plate equidistance install in turn in the inside of heat-transfer pipe, just first folded plate with one side of second folded plate is opposite is equipped with the cross section, first folded plate with all seted up on the second folded plate with cold liquid pipe assorted through-hole, just first folded plate, second folded plate all overlap locate on the cold liquid pipe, can realize playing to blockking the speed limit and increasing the inside flow realization of hot liquid at the heat-transfer pipe to the hydrothermal solution of heat-transfer pipe internal flow through being equipped with the baffling subassembly in the inside of heat-transfer pipe, increased the heat exchange between the cold liquid in hydrothermal solution and the cold liquid pipe, the effectual heat exchange efficiency who improves the heat exchanger.

Preferably, the plurality of cold liquid pipes are composed of a liquid inlet pipe, a multi-fold bent pipe and a liquid outlet pipe, the flow path of cold liquid in the cold liquid pipe is increased by the cold liquid pipe, the heat exchange time of the cold liquid with the heat transfer pipe in hot liquid is increased, and the heat exchange efficiency is effectively improved.

Preferably, the both ends of heat-transfer pipe all are equipped with the end pipe, just the one end of end pipe all with one side fixed connection of end plate, one of them top one side of end pipe is equipped with cold feed liquor pipe, and wherein another be equipped with cold drain pipe on the end pipe, the end pipe makes things convenient for the mouth of cold liquid to go into then the tip through cold liquid pipe flows into the inside of cold liquid pipe, has increased the convenience that cold liquid flows.

Preferably, one side of the end pipe, which is far away from the end plate, is a closed end, so that cold liquid is prevented from flowing out through the other end of the end pipe, and the cold liquid is completely flowed into the cold liquid pipe.

Preferably, a sealing block is arranged at a penetrating position of the cold liquid pipe and the end plate, the sealing block is fixedly arranged on the end plate, the sealing block can seal the penetrating position between the cold liquid pipe and the end plate, mixing caused by hot liquid in the heat transfer pipe flowing into the end pipe and the cold liquid is avoided, and the flowing safety of the cold liquid and the hot liquid in the heat exchange process is improved.

Preferably, the outer side wall of the heat transfer pipe is fixedly sleeved with the heat preservation pipe, the heat preservation pipe is sleeved on the outer side of the heat transfer pipe, the heat preservation effect on the outer wall of the heat transfer pipe can be achieved, the loss of heat of hot liquid in the heat transfer pipe is reduced, and the heat exchange efficiency is improved.

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

the utility model discloses an optimize current heat exchanger, be equipped with the baffling subassembly through the inside at the heat-transfer pipe and can realize playing to the hydrothermal solution of heat-transfer pipe internal flow and blockking the speed limit and increase the flow time of hot liquid in the heat-transfer pipe is inside, have the many bends in the cold liquid pipe, increase the flow path of cold liquid, increased the heat exchange time between the cold liquid in hydrothermal solution and the cold liquid pipe, the effectual heat exchange efficiency who improves the heat exchanger.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of a heat transfer tube according to the present invention;

fig. 3 is a schematic structural view of the connection between the coolant pipe and the first and second flanges according to the present invention;

fig. 4 is a schematic structural view of the first and second folded plates of the present invention;

FIG. 5 is a schematic view of the structure of the multiple liquid cooling pipes of the present invention;

fig. 6 is a schematic structural view of a single cold liquid pipe in the present invention.

In the figure: 1-a heat transfer tube; 2-a liquid cooling pipe; 3-hot liquid outlet pipe; 4-hot liquid inlet pipe; 5-end plate; 6-a baffle assembly; 7-a first flap; 8-a second flap; 9-a through hole; 10-a liquid inlet pipe; 11-multifold bent pipe; 12-a liquid outlet pipe; 13-end tube; 14-cold liquid inlet pipe; 15-cooling the liquid outlet pipe; 16-a sealing block; 17-a heat preservation pipe; 18-transverse section.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 6, a heat exchanger for petrochemical industry in the figure includes a heat transfer pipe 1, an end plate 5 and a baffle assembly 6, wherein a plurality of cold liquid pipes 2 are arranged inside the heat transfer pipe 1, and the plurality of cold liquid pipes 2 are arranged in a circumferential array form, a hot liquid outlet pipe 3 is arranged above one end of the heat transfer pipe 1, a hot liquid inlet pipe 4 is arranged below the other end of the heat transfer pipe 1, the end plate 5 is installed at two ends of the heat transfer pipe 1 and used for shielding hot liquid inside the heat transfer pipe 1, two ends of the cold liquid pipes 2 respectively penetrate through the end plates 5 at two ends of the heat transfer pipe 1 and extend to the outside of the heat transfer pipe 1, and the baffle assembly 6 is installed inside the heat transfer pipe 1 and used for prolonging the flow time of hot liquid in the heat transfer pipe 1.

Referring to fig. 2 and 3, the baffle assembly 6 shown in the figure includes a first baffle plate 7 and a second baffle plate 8, the second baffle plate and the second baffle plate 8 are alternately installed inside the heat transfer pipe 1 at equal intervals, a cross section 18 is disposed on one side of the first baffle plate 7 opposite to one side of the second baffle plate 8, through holes 9 matched with the cold liquid pipe 2 are disposed on the first baffle plate 7 and the second baffle plate 8, and the first baffle plate 7 and the second baffle plate 8 are both sleeved on the cold liquid pipe 2.

Referring to fig. 5 and 6, the plurality of cold liquid tubes 2 are composed of a liquid inlet tube 10, a multi-fold bent tube 11 and a liquid outlet tube 12.

When the heat exchanger is used: firstly pour hydrothermal solution into heat-transfer pipe 1 through the hot feed liquor pipe 4 of heat-transfer pipe 1 one end in, and at this moment and with cold liquid defeated cold liquid pipe 2 in, cold liquid flows in cold liquid pipe 2, because cold liquid comprises feed liquor pipe 10, many bent pipes 11 and drain pipe 12, thereby can increase the flow time of cold liquid in cold liquid pipe 2, hydrothermal solution will flow in the inside of heat-transfer pipe 1 simultaneously, the in-process that flows will cross first folded plate 7 in proper order, then flow through the below of second folded plate 8, the in-process that flows is first, the second folded plate can play the effect that the hindrance sheltered from to hydrothermal solution, increase the flow time of hot liquid in heat-transfer pipe 1, can increase and the heat exchange between the cold liquid, the efficiency of effectual improvement heat exchange.

Example 2

Referring to fig. 1 and 2, in this embodiment, a heat transfer pipe 1, an end plate 5 and a baffle assembly 6 are further described in example 1, in the figure, a plurality of cold liquid pipes 2 are arranged inside the heat transfer pipe 1, the plurality of cold liquid pipes 2 are arranged in a circumferential array, a hot liquid outlet pipe 3 is arranged above one end of the heat transfer pipe 1, a hot liquid inlet pipe 4 is arranged below the other end of the heat transfer pipe 1, the end plates 5 are mounted at two ends of the heat transfer pipe 1 and used for shielding hot liquid inside the heat transfer pipe 1, two ends of the cold liquid pipes 2 respectively penetrate through the end plates 5 at two ends of the heat transfer pipe 1 and extend to the outside of the heat transfer pipe 1, and the baffle assembly 6 is mounted inside the heat transfer pipe 1 and used for baffling the hot liquid in the heat transfer pipe 1 to prolong the flow time inside the pipe;

referring to fig. 1 and fig. 2, in the drawings, end pipes 13 are disposed at both ends of a heat transfer pipe 1, and one end of each end pipe 13 is fixedly connected to one side of an end plate 5, a cold liquid inlet pipe 14 is disposed at one side above one end pipe 13, and a cold liquid outlet pipe 15 is disposed at the other end pipe 13;

referring to fig. 1 and 2, the end tube 13 is shown as closed at the side away from the end plate 5.

In this embodiment, when carrying cold liquid pipe 2 to cold liquid, all be equipped with end pipe 13 in one side of end plate 5, and be equipped with cold feed liquor pipe 14 in the end pipe 13, the convenience is connected with the equipment that provides cold liquid, cold liquid when entering into end pipe 13 through cold feed liquor pipe 14, the tip that will pass through cold liquid pipe 2 in end pipe 13 this moment flows into cold liquid pipe 2, then flow into the end pipe 13 of the cold liquid pipe 2 other end, and discharge by cold drain pipe 15 on this end pipe 13, the effectual convenience that has increased cold liquid entering cold liquid pipe 2.

Example 3

Referring to fig. 2 and 3, in the present embodiment, for further explanation of other embodiments, a heat transfer pipe 1, an end plate 5 and a baffle assembly 6 are shown in the drawings, a plurality of cold liquid pipes 2 are arranged inside the heat transfer pipe 1, the plurality of cold liquid pipes 2 are arranged in a circumferential array, a hot liquid outlet pipe 3 is arranged above one end of the heat transfer pipe 1, a hot liquid inlet pipe 4 is arranged below the other end of the heat transfer pipe 1, end plates 5 are mounted at two ends of the heat transfer pipe 1 and used for shielding hot liquid inside the heat transfer pipe 1, two ends of the cold liquid pipes 2 respectively penetrate through the end plates 5 at two ends of the heat transfer pipe 1 and extend to the outside of the heat transfer pipe 1, and the baffle assembly 6 is mounted inside the heat transfer pipe 1 and used for baffling the hot liquid in the heat transfer pipe 1 to prolong the flow time inside the pipe.

Referring to fig. 2 and 3, a sealing block 16 is disposed at a penetrating portion between the cold liquid pipe 2 and the end plate 5, and the sealing block 16 is fixed on the end plate 5;

referring to fig. 2, the outer sidewall of the heat transfer tube 1 is fixedly sleeved with a heat preservation tube 17.

In this embodiment, the sealing block 16 is provided in the penetration between the cold liquid pipe 2 and the end plate 5 to increase the safety of the hot liquid flowing in the heat transfer pipe 1, so as to prevent the hot liquid from flowing into the end pipe 13 through the penetration between the cold liquid pipe 2 and the end plate 5, thereby increasing the safety of use, and meanwhile, the heat preservation pipe 17 is fixedly provided outside the heat transfer pipe 1, so as to reduce the thermal damage in the hot liquid flowing process in the heat transfer pipe 1 and improve the heat exchange efficiency.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A heat exchanger for petrochemical, comprising:

the heat pipe comprises a heat transfer pipe (1), wherein a plurality of cold liquid pipes (2) are arranged inside the heat transfer pipe (1), the cold liquid pipes (2) are arranged in a circumferential array mode, each cold liquid pipe (2) consists of a liquid inlet pipe (10), a multi-fold bent pipe (11) and a liquid outlet pipe (12), a hot liquid outlet pipe (3) is arranged above one end of the heat transfer pipe (1), and a hot liquid inlet pipe (4) is arranged below the other end of the heat transfer pipe;

the end plates (5) are mounted at two ends of the heat transfer pipe (1) and used for shielding hot liquid in the heat transfer pipe (1), and two ends of the cold liquid pipe (2) respectively penetrate through the end plates (5) at two ends of the heat transfer pipe (1) and extend towards the outside of the heat transfer pipe (1);

and the baffling assembly (6) is arranged inside the heat transfer pipe (1) and is used for baffling the hot liquid in the heat transfer pipe (1) to prolong the flowing time in the pipe.

2. The heat exchanger for petrochemical industry according to claim 1, wherein: baffling subassembly (6) include first folded plate (7) and second folded plate (8), second folded plate (8) equidistance install in turn in the inside of heat-transfer pipe (1), just first folded plate (7) with one side of second folded plate (8) is opposite to be equipped with cross section (18), first folded plate (7) with all seted up on second folded plate (8) with cold liquid pipe (2) assorted through-hole (9), just first folded plate (7), second folded plate (8) all overlap and locate on cold liquid pipe (2).

3. The heat exchanger for petrochemical industry according to claim 1, wherein: both ends of heat-transfer pipe (1) all are equipped with end pipe (13), just the one end of end pipe (13) all with one side fixed connection of end plate (5), one of them top one side of end pipe (13) is equipped with cold feed liquor pipe (14), and wherein another be equipped with cold drain pipe (15) on end pipe (13).

4. The heat exchanger for petrochemical industry according to claim 3, wherein: and one side of the end pipe (13) far away from the end plate (5) is a closed end.

5. The heat exchanger for petrochemical industry according to claim 1, wherein: the cold liquid pipe (2) with the department of running through of end plate (5) is equipped with sealed piece (16), just sealed piece (16) are fixed to be located on end plate (5).

6. The heat exchanger for petrochemical industry according to claim 1, wherein: the outer side wall of the heat transfer pipe (1) is fixedly sleeved with a heat preservation pipe (17).

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