CN210773558U

CN210773558U - Double-shell half-volume heat exchanger

Info

Publication number: CN210773558U
Application number: CN201921739426.3U
Authority: CN
Inventors: 管学军; 王一迅
Original assignee: Zhejiang Shunte Machinery Co ltd
Current assignee: Zhejiang Shunte Machinery Co ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-06-16
Anticipated expiration: 2029-10-16

Abstract

The utility model discloses a double shell half-displacement heat exchanger, including heat exchanger shell, heat exchange tube, draft tube and pipe case, both sides are equipped with honeycomb duct and cold water inlet respectively about the draft tube, both sides are equipped with steam inlet and condensate outlet respectively about the pipe case, evenly be equipped with the baffling board of a plurality of vertical settings in the draft tube, be provided with the stroke plate in the draft tube, the stroke plate is used for prolonging the flow process of water. The utility model discloses have better energy-conserving realistic meaning and social economic benefits.

Description

Double-shell half-volume heat exchanger

Technical Field

The utility model relates to a heat exchange equipment field especially relates to a half positive displacement heat exchanger of double-shell side.

Background

The heat exchanger is a heat exchange device which is widely applied to the places of hot water supply of chemical industry, food, pharmacy, civil buildings and the like. Due to the process requirements of some application occasions, the outlet temperature of the heated medium of the heating heat exchanger is required to be higher, and large fluctuation cannot be caused.

The existing heat exchanger generally adopts the quantity or volume of the increased heat exchange tubes to improve the heat exchange effect in order to improve the heat exchange effect, but the method can lead to the increase of the equipment structure size of the heat exchanger, brings great inconvenience to transportation and installation, and has higher economic cost.

Disclosure of Invention

The utility model aims at providing a two shell journey half-displacement heat exchanger to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a double-shell half-displacement heat exchanger, includes heat exchanger shell, heat exchange tube, draft tube and pipe case, both sides are equipped with honeycomb duct and cold water inlet respectively about the draft tube, both sides are equipped with steam inlet and condensate outlet respectively about the pipe case, evenly be equipped with a plurality of baffles of vertical setting in the draft tube, be provided with the stroke plate in the draft tube, the stroke plate is used for prolonging the flow process of water.

The utility model discloses a theory of operation: cold water enters from a cold water inlet, steam enters from a steam inlet and enters the inside of the pipe box, then heat exchange is carried out through the heat exchange pipe, the steam is cooled into condensed water and returns to the pipe box, then the condensed water is discharged from a condensed water outlet, the cold water is contacted with the heat exchange pipe bundle and exchanges heat to be heated, meanwhile, water flow is guided by the guide cylinder and the baffle plate to forcibly restrict the flow direction, and the heated water flow is finally guided into the cavity of the heat exchanger shell by the guide pipe.

Compared with the traditional half-volume heat exchanger, the utility model increases the shell pass dividing plate, so that the flow of the shell pass side is doubled without increasing the structural size of the equipment, thereby further improving the heat exchange effect and having better energy-saving practical significance and social and economic benefits; the shell-side pass plate separates the upper part and the lower part in the guide cylinder, so that cold water which just enters the guide cylinder from the lower part is prevented from being mixed with hot water which is heated from the upper part, the water temperature from the guide cylinder is ensured to be better, and the heating effect is ensured; the moving path of the cold water is fixed under the action of the guide cylinder and the baffle plate, so that the heating pipe can heat the cold water orderly and efficiently.

And the drainage end of the flow guide pipe is connected with a flow equalizing pipe.

The baffle plate is an arched baffle plate.

The baffle is a flexible baffle.

And a clean discharge port is formed at the lower end of the heat exchanger shell.

And a support rod is connected between the guide cylinder and the inner wall of the heat exchanger shell.

The heat exchange tube is connected with the tube box through an equipment flange.

And a sealing element is arranged at the joint of the heat exchange tube and the tube box.

The sealing element is a tube plate.

Compared with the prior art, the utility model discloses better energy-conserving realistic meaning and social economic benefits have.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure; 1. a hot water outlet; 2. a heat exchanger containment shell; 3. a heat exchange pipe; 4. a flow guide pipe; 5. a draft tube; 6. a steam inlet; 7. a pipe box; 8. a condensed water outlet; 9. a bolt; 10. a seal member; 11. an equipment flange; 12. a cold water inlet; 13. a shell pass plate; 14. a deformable bow baffle plate; 15. a flow equalizing pipe; 16. a discharge port; 17. a support rod.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, a double shell half-displacement heat exchanger comprises a heat exchanger shell 2, a heat exchange tube 3, a draft tube 5 and a tube box 7, wherein a hot water outlet 1 is arranged at the center of the top of the heat exchanger shell 2, a draft tube 4 and a cold water inlet 12 are respectively arranged at the upper side and the lower side of the draft tube 5, the cold water inlet 12 is arranged at the outer extension part of the draft tube 5, a steam inlet 6 and a condensed water outlet 8 are respectively arranged at the upper side and the lower side of the tube box 7, a plurality of longitudinally arranged baffle plates 14 are uniformly arranged in the draft tube 5, a split plate 13 is transversely arranged at the middle part in the draft tube 5, and the split plate 13.

In a further detail, the water discharging end of the flow guide pipe 4 is connected with a flow equalizing pipe 15, so that water flow is uniformly distributed, and water storage of the heat exchanger is uniform.

In more detail, the baffle plate 14 is an arc baffle plate, and has the effects of increasing turbulence, reducing dead zones, lengthening the flow, improving the heat exchange effect, and supporting and positioning the heat exchange pipe.

In a further elaboration, the baffle plate 14 is a flexible baffle plate which can deform along with the shape of the inner surface of the shell, so that no gap exists between the outer edge of the flexible baffle plate and the inner wall of the shell of the heat exchange equipment, and the fluid short circuit caused by leakage generated by the gap can be prevented, thereby remarkably improving the heat transfer efficiency.

Further saying in detail, in order to facilitate the impurity to in the heat exchanger casing 2 to clear up, heat exchanger casing 2 lower extreme is equipped with row clean mouth 16, opens row clean mouth 16 and can discharge the impurity in the heat exchanger casing 2, labour saving and time saving, easily the operation.

In a further elaboration, in order to improve the connection strength between the guide shell 5 and the heat exchanger shell 2 and ensure the service life of the heat exchanger, a support rod 17 is connected between the guide shell 5 and the inner wall of the heat exchanger shell 2.

To be further described, the heat exchange tube 3 and the tube box 7 are connected by an apparatus flange 11 in order to secure the connection strength between the heat exchange tube 3 and the tube box 7.

The joint of the heat exchange tube 3 and the tube box 7 is also provided with a sealing element 10.

The sealing element 10 is a tube plate, namely a round steel plate is drilled with holes slightly larger than the outer diameter of the tube, and the tube plate is round steel which plays a role in fixing the tube and sealing media in the heat exchanger.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although terms are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a double-shell half-displacement heat exchanger, includes heat exchanger shell (2), heat exchange tube (3), draft tube (5) and pipe case (7), both sides are equipped with honeycomb duct (4) and cold water inlet (12) respectively about draft tube (5), both sides are equipped with steam inlet (6) and condensate outlet (8) respectively about pipe case (7), its characterized in that: a plurality of baffle plates (14) which are longitudinally arranged are uniformly arranged in the guide shell (5), a range plate (13) is arranged in the guide shell (5), and the range plate (13) is used for prolonging the flow process of water.

2. A double shell side semi-positive displacement heat exchanger according to claim 1, wherein: the drainage end of the flow guide pipe (4) is connected with a flow equalizing pipe (15).

3. A double shell side semi-positive displacement heat exchanger according to claim 1, wherein: the baffle plate (14) is an arched baffle plate.

4. A double shell side semi-positive displacement heat exchanger according to claim 1, wherein: the baffle plate (14) is a flexible baffle plate.

5. A double shell side semi-positive displacement heat exchanger according to claim 1, wherein: the lower end of the heat exchanger shell (2) is provided with a clean discharge port (16).

6. A double shell side semi-positive displacement heat exchanger according to claim 1, wherein: and a support rod (17) is connected between the guide cylinder (5) and the inner wall of the heat exchanger shell (2).

7. A double shell side semi-positive displacement heat exchanger according to claim 1, wherein: the heat exchange tube (3) is connected with the tube box (7) through an equipment flange (11).

8. A double shell side semi-positive displacement heat exchanger according to claim 1, wherein: and a sealing element (10) is also arranged at the joint of the heat exchange tube (3) and the tube box (7).

9. A double shell side semi-positive displacement heat exchanger according to claim 8, wherein: the sealing element (10) is a tube plate.