CN217844840U

CN217844840U - Heat exchanger using compression heat

Info

Publication number: CN217844840U
Application number: CN202221294255.XU
Authority: CN
Inventors: 张超萍; 张炯焱; 王泉超; 张晖; 黎昌矩
Original assignee: Ningbo Baosi Energy Equipment Co Ltd
Current assignee: Ningbo Baosi Energy Equipment Co Ltd
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-11-18
Anticipated expiration: 2032-05-27

Abstract

The utility model provides a heat exchanger utilizing compression heat, which comprises a shell, wherein a heat exchange cavity is arranged in the shell, a plurality of heat exchange tubes are arranged in the heat exchange cavity, a heat source inlet, a heat source outlet, a cold source inlet and a cold source outlet which are communicated with the heat exchange cavity are arranged on the shell, and the tail ends of all the heat exchange tubes are communicated with the heat source outlet; the shell is internally provided with a heat conduction cavity, and the head ends of all the heat exchange tubes are exposed in the heat conduction cavity and are communicated with a heat source inlet through the heat conduction cavity; the heat conduction cavity is internally provided with a sliding block and an elastic part connected with the rear side of the sliding block, the sliding block can slide along the heat conduction cavity and compress the elastic part, and the sliding block is used for guiding heat source fluid entering the heat source inlet to the head end of the heat exchange tube positioned on the front side of the sliding block. The utility model discloses can carry out the tube bank quantity of heat exchange with compressed air source according to compressed air source's pressure automatically regulated, can protect heat exchanger, can improve heat exchanger again to the heat exchange efficiency of other mediums.

Description

Heat exchanger using compression heat

Technical Field

The utility model relates to a heat exchanger's technical field, more precisely relate to an utilize heat exchanger of compression heat.

Background

The air compression heat generated in the operation process of the air compressor is heat energy which is easy to obtain, wherein the high-temperature gas produced by the oil-free screw compressor has the advantages of high heat, no pollution, no moisture, no electric conduction, safety, reliability and the like, and can be applied to various industrial occasions needing heating, food, cultivation, crop cultivation and the like. In the prior art, a compressed air source with heat provided by an air compressor is generally led into a heat exchanger to supply heat to other media. If the capacity of a common heat exchanger is not large enough, the instantaneously acceptable air flow is small, and a tube bundle for heat exchange in the heat exchanger is easily damaged by strong impact of a high-pressure compressed air source; if the capacity of the heat exchanger is large, the instantaneously acceptable flow rate greatly exceeds the flow rate of the compressed air source, the heat of the compressed air source is easily dispersed, and thus the heat exchange efficiency of the heat exchanger to other media is reduced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an utilize heat exchanger of compression heat, can carry out the tube bank quantity of heat exchange with compressed air source according to compressed air source's pressure automatically regulated, can protect heat exchanger, can improve heat exchanger again to the heat exchange efficiency of other mediums.

The technical solution of the utility model is to provide a heat exchanger utilizing compression heat, which comprises a shell, wherein a heat exchange cavity is arranged in the shell, a plurality of heat exchange tubes are arranged in the heat exchange cavity, a heat source inlet, a heat source outlet, a cold source inlet and a cold source outlet which are communicated with the heat exchange cavity are arranged on the shell, and the tail ends of all the heat exchange tubes are communicated with the heat source outlet; a heat conduction cavity is arranged between the heat source inlet and the heat exchange cavity in the shell, and the head ends of all the heat exchange tubes are exposed in the heat conduction cavity and are communicated with the heat source inlet through the heat conduction cavity; the heat conduction cavity is internally provided with a sliding block and an elastic part connected with the rear side of the sliding block, the sliding block can slide along the heat conduction cavity and compress the elastic part, and the sliding block is used for guiding heat source fluid entering a heat source inlet to the head end of the heat exchange tube positioned on the front side of the sliding block.

Compared with the prior art, the utility model discloses an utilize heat exchanger of compression heat has following advantage: the heat source inlet can be externally connected with an exhaust pipe of the air compressor, so that the air compressor can provide a compressed air source; the higher the exhaust pressure of the compressed air source is, the higher the exhaust temperature is, and the high-pressure compressed air source can push the sliding block to slide along the heat conducting cavity and compress the elastic piece; when the compression heat of the compressed air source is at a common temperature (for example, 100-150 ℃), the pressure of the compressed air source is also smaller, the sliding stroke of the sliding block is short, the number of the head ends of the heat exchange tubes positioned on the front side of the sliding block is small, and the sliding block guides the heat source fluid, namely the compressed air source, to the few heat exchange tubes for centralized heat supply, so that the temperature of the few heat exchange tubes is quickly increased to a high-level energy level, and the heat exchange efficiency of the heat exchange tubes to other media is improved; when the compression heat of compressed air source is in higher temperature (e.g. 150-250 ℃), the compressed air source pressure is great, the sliding stroke of the slider is long, the number of the head ends of the heat exchange tubes positioned at the front side of the slider is large, the slider distributes heat to the heat exchange tubes of the majority by guiding the heat source fluid, namely the compressed air source, so that the compressed air source and the utility model can quickly carry out the omnidirectional heat exchange, improve the compressed air source, and because the compressed air source provides a large amount of compression heat, the temperature of the heat exchange tubes guided into the compressed air source can be quickly improved to a high-level energy level, and the heat exchange efficiency of the heat exchange tubes to other media is also high. Therefore, the sliding block of the utility model can automatically adjust the number of the heat exchange tubes exchanging heat with the compressed air source according to the exhaust pressure of the compressed air source; the temperature of all heat exchange tubes participating in heat exchange can not reach a high-order energy level due to the fact that a compressed air source with low exhaust pressure and low compression heat enters a large number of heat exchange tubes, and therefore the heat exchange efficiency of the heat exchange tubes to other media is reduced; and the damage of the heat exchange tubes caused by impact when a compressed air source with large exhaust pressure and high compression heat enters a few heat exchange tubes can be avoided.

Preferably, the peripheral wall of slider corresponds sliding fit with the inner chamber wall one-to-one of heat conduction chamber. By adopting the structure, the flow guiding capacity of the sliding block to the heat source fluid is improved, the heat source fluid is enabled to flow back to the head end of the heat exchange tube positioned on the front side of the sliding block as much as possible, and the heat loss caused by the heat source fluid entering the head end of the heat exchange tube positioned on the rear side of the sliding block through a gap between the sliding block and the inner cavity wall of the heat conducting cavity is reduced.

Preferably, the wall of the heat conduction cavity is provided with an opening communicated with the heat source inlet, and when the elastic part is in a natural state or a compressed state, the sliding blocks are both positioned on the same side of the opening. By adopting the structure, the quantity of the heat exchange tubes which can exchange heat with the compressed air source can be always automatically regulated by the sliding block according to the exhaust pressure of the compressed air source, the sliding block is prevented from being positioned in the middle of the opening, and heat source fluid is prevented from directly entering the head end of the heat exchange tube positioned at the rear side of the sliding block through the opening.

Preferably, all heat exchange tubes set to 2 at least groups of heat exchange tube bundles, every group heat exchange tube bundle all includes a plurality of heat exchange tube, and the head end of the heat exchange tube in every group heat exchange tube bundle all gathers and sets to the head end set, and the interval sets up between the head end set of adjacent two sets of heat exchange tube bundles, and the head end set of all heat exchange tube bundles all arranges the setting along heat conduction chamber in proper order. By adopting the structure, as the exhaust pressure of the compressed air source increases, the heat exchange tubes participating in heat exchange increase progressively by taking the group as a unit, and the capacity of the sliding block for automatically adjusting the number of the heat exchange tubes exchanging heat with the compressed air source according to the exhaust pressure of the compressed air source is improved.

Preferably, every group heat exchanger tube bank all includes a plurality of straight tube and at least one spiral pipe, and the spiral pipe spiral sets up the outside at all straight tubes of group. By adopting the structure, the heat exchange area of each group of heat exchange tube bundles can be increased, and the heat exchange efficiency of each group of heat exchange tube bundles to other media is improved.

Preferably, each group of heat exchange tube bundles are detachably arranged in the heat exchange cavity. By adopting the structure, each group of heat exchange tube bundles can be cleaned and replaced conveniently.

Preferably, a heat discharge cavity is arranged between the heat source outlet and the heat exchange cavity in the shell, and the tail ends of all the heat exchange tubes are exposed in the heat discharge cavity and are communicated with the heat source outlet through the heat discharge cavity. By adopting the structure, the tail ends of all the heat exchange tubes are prevented from being gathered at the unique heat source outlet to cause overhigh temperature and low heat exchange efficiency for other media.

Preferably, the cold source inlet and the cold source outlet are respectively arranged at two ends of the heat exchange cavity. By adopting the structure, the distance between the cold source inlet and the cold source outlet is maximum, the heat exchange time of the cold source fluid in the heat exchange cavity is prolonged, the heat exchange area between the cold source fluid and the heat exchange tube is increased, and the cold source fluid can be fully heated.

Preferably, the heat exchange cavity is located in the middle of the shell, the heat conduction cavity is located above the heat exchange cavity, the heat source inlet and the heat source outlet are respectively located at the top and the bottom of the shell, and the cold source inlet and the cold source outlet are respectively located at the upper side part and the lower side part of the heat exchange cavity. By adopting the structure, the distance between the heat source inlet and the heat source outlet is the largest, so that the heat loss caused by the heat transfer from the heat source fluid at the heat source inlet to the heat source fluid at the heat source outlet is avoided; meanwhile, the distance between the cold source inlet and the cold source outlet is the largest, the heat exchange time of the cold source fluid in the heat exchange cavity is prolonged, the heat exchange area between the cold source fluid and the heat exchange tube is increased, and the cold source fluid can be fully heated.

Drawings

Fig. 1 is a schematic view showing an internal structure of a heat exchanger using compression heat according to the present invention.

As shown in the figure: 1. the heat source heat exchanger comprises a heat source inlet, 2 a heat source outlet, 3 a cold source inlet, 4 a cold source outlet, 5 a heat exchange cavity, 6 a heat exchange tube bundle, 6-1 a straight tube, 6-2 a spiral tube, 7 a sliding block, 8 a spring, 9 a heat conduction cavity, 10 and a heat exhaust cavity.

Detailed Description

For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification.

In the drawings, the thickness, size, and shape of an object have been slightly exaggerated for convenience of explanation. The figures are purely diagrammatic and not drawn to scale.

It will be further understood that the terms "comprises," "comprising," "includes," "including," and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Further, when a statement such as "… at least one" appears after the list of listed features, the entire listed feature is modified rather than modifying individual elements in the list.

As shown in fig. 1, the heat exchanger using compression heat of the present invention includes a housing, and a heat conducting chamber 9, a heat exchanging chamber 5, and a heat discharging chamber 10 are provided in the housing from top to bottom; three groups of heat exchange tube bundles 6 are arranged in the heat exchange cavity 5, each group of heat exchange tube bundles 6 comprises a plurality of heat exchange tubes of straight tubes 6-1 and a heat exchange tube of a spiral tube 6-2, and the heat exchange tube of the spiral tube 6-2 is spirally arranged at the outer side of the heat exchange tubes of all the straight tubes 6-1 in the group; the head ends of the heat exchange tubes in each group of heat exchange tube bundles 6 are gathered to form a head end set, the head end sets of the two adjacent groups of heat exchange tube bundles 6 are arranged at intervals, and the head end sets of all the heat exchange tube bundles 6 are exposed in the heat conducting cavity 9 and are sequentially arranged along the heat conducting cavity 9; the tail ends of the heat exchange tubes in each group of heat exchange tube bundles 6 are gathered and arranged into a tail end set, the tail end sets of two adjacent groups of heat exchange tube bundles 6 are arranged at intervals, and the tail end sets of all the heat exchange tube bundles 6 are exposed in the heat exchange cavity 5 and are sequentially arranged along the heat exchange cavity 5; each group of heat exchange tube bundles 6 are detachably arranged in the heat exchange cavity 5.

The top of the shell is provided with a heat source inlet 1, one side of the cavity wall at the top of the heat conducting cavity 9 is provided with an opening, the heat source inlet 1 is communicated with the heat conducting cavity 9 through the opening, namely the head ends of all the heat exchange tubes are communicated with the heat source inlet 1 through the heat conducting cavity 9. The heat source inlet 1 can be externally connected with the exhaust pipe of the air compressor, so that the air compressor is right the utility model provides a compressed air source.

A sliding block 7 and an elastic part, namely a spring 8, connected with the rear side of the sliding block 7 are arranged in the heat conduction cavity 9, the outer peripheral wall of the sliding block 7 is in one-to-one corresponding sliding fit with the inner cavity wall of the heat conduction cavity 9, and the sliding block 7 can slide along the heat conduction cavity 9 and compress the spring 8; when the spring 8 is in a natural state or a compressed state, the sliding blocks 7 are positioned on the same side of an opening on the top cavity wall of the heat conducting cavity 9. The high-pressure compressed air source can push the sliding block 7 to slide along the heat conducting cavity 9, the head end of the heat exchange tube positioned on the rear side of the sliding block 7 is shielded by the sliding block 7, and the compressed air source can only be guided to the head end of the heat exchange tube positioned on the front side of the sliding block 7 by the sliding block 7.

The bottom of the shell is provided with a heat source outlet 2, the heat source outlet 2 is communicated with a heat discharge cavity 10, and the tail ends of all heat exchange tubes are communicated with the heat source outlet 2 through the heat discharge cavity 10. The last lateral part of heat transfer chamber 5 is provided with cold source import 3, and the lower lateral part of heat transfer chamber 5 is provided with cold source export 4, and cold source import 3 and cold source export 4 all lie in heat transfer chamber 5 with one side and all communicate with heat transfer chamber 5.

The utility model discloses an utilize heat exchanger of compression heat when using, can adopt oil-free screw compressor right the utility model provides a compressed air source, the compressed air source's that oil-free screw compressor provided exhaust pressure is high more, and exhaust temperature is also high more. When the compression heat of the compressed air source is at a common temperature (for example 100-150 ℃), the pressure of the compressed air source is small, the stroke of the compressed air source for pushing the sliding block 7 to slide is short, the number of the head ends of the heat exchange tubes positioned on the front side of the sliding block 7 is small, and the sliding block 7 guides the heat source fluid, namely the compressed air source, to the few heat exchange tubes for centralized heat supply, so that the temperature of the few heat exchange tubes is quickly increased to a high-level energy level, and the heat exchange efficiency of the heat exchange tubes to other media is improved; when the compression heat of compressed air source is in higher temperature (for example: 150-250 ℃), the compressed air source pressure is great, the compressed air source promotes the gliding stroke length of slider 7, and the head end quantity of the heat exchange tube that is located the slider 7 front side is just more, and the slider disperses the heat supply in heat source fluid promptly compressed air source water conservancy diversion to this majority heat exchange tube, makes compressed air source with the utility model discloses can carry out omnidirectional heat exchange fast for compressed air source the utility model discloses a heat exchange efficiency, and because compressed air source provides a large amount of compression heat, the temperature homoenergetic that is led into the heat exchange tube of compressed air source can improve to high-order energy level fast, and these heat exchange tubes are also high to the heat exchange efficiency of other media.

Therefore, the sliding block of the utility model can automatically adjust the number of the heat exchange tubes exchanging heat with the compressed air source according to the exhaust pressure of the compressed air source; the temperature of all heat exchange tubes participating in heat exchange can not reach a high-order energy level due to the fact that a compressed air source with low exhaust pressure and low compression heat enters a large number of heat exchange tubes, and therefore the heat exchange efficiency of the heat exchange tubes to other media is reduced; and the damage of the heat exchange tubes caused by impact when a compressed air source with large exhaust pressure and high compression heat enters a few heat exchange tubes can be avoided.

Except that the embodiment shown in fig. 1, the utility model discloses an utilize heat exchanger of compression heat can also set up cold source import 3 and cold source export 4 in the relative both sides of heat transfer chamber 5, and be located the upper and lower both ends of heat transfer chamber 5 respectively, further increases the distance that the cold source imported and the cold source exported, prolongs the heat transfer time of cold source fluid in the heat transfer intracavity, increases the heat transfer area between cold source fluid and the heat exchange tube, makes the cold source fluid obtain more abundant heating. In addition, the heat exchange pipe may be provided in a U-shape or an S-shape, and thus, the heat source inlet 1 and the heat source outlet 2 are provided according to the positions of the head end and the tail end of the heat exchange pipe, respectively.

The above are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention; the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the spirit and scope of the present invention.

Claims

1. A heat exchanger utilizing compression heat comprises a shell, wherein a heat exchange cavity (5) is arranged in the shell, a plurality of heat exchange tubes are arranged in the heat exchange cavity (5), a heat source inlet (1), a heat source outlet (2), a cold source inlet (3) and a cold source outlet (4) which are communicated with the heat exchange cavity (5) are arranged on the shell, and the tail ends of all the heat exchange tubes are communicated with the heat source outlet (2); the heat exchanger is characterized in that a heat conduction cavity (9) is arranged between a heat source inlet (1) and a heat exchange cavity (5) in the shell, and the head ends of all heat exchange tubes are exposed in the heat conduction cavity (9) and communicated with the heat source inlet (1) through the heat conduction cavity (9); a sliding block (7) and an elastic part connected with the rear side of the sliding block (7) are arranged in the heat conducting cavity (9), the sliding block (7) can slide along the heat conducting cavity (9) and compress the elastic part, and the sliding block (7) is used for guiding heat source fluid entering the heat source inlet (1) to the head end of the heat exchange tube positioned on the front side of the sliding block (7).

2. A heat exchanger using compression heat according to claim 1 wherein the outer peripheral wall of the slider (7) is in one-to-one sliding fit with the inner cavity wall of the heat-conducting cavity (9).

3. A heat exchanger utilizing heat of compression as claimed in claim 2, characterized in that the wall of the heat conducting chamber (9) is provided with an opening communicating with the heat source inlet (1), and the sliding blocks (7) are located on the same side of said opening when said elastic member is in the natural state or in the compressed state.

4. A heat exchanger utilizing heat of compression as claimed in claim 1, wherein all heat exchange tubes are arranged into at least 2 sets of heat exchange tube bundles (6), each set of heat exchange tube bundles (6) comprises a plurality of heat exchange tubes, the head ends of the heat exchange tubes in each set of heat exchange tube bundles (6) are gathered and arranged into a head end set, the head end sets of two adjacent sets of heat exchange tube bundles (6) are arranged at intervals, and the head end sets of all heat exchange tube bundles (6) are arranged in sequence along the heat conducting cavity (9).

5. A heat exchanger using heat of compression according to claim 4, characterized in that each group of bundles (6) comprises several straight tubes (6-1) and at least one spiral tube (6-2), the spiral tube (6-2) being arranged spirally outside all the straight tubes (6-1) in the group.

6. Heat exchanger using compression heat according to claim 4, characterised in that each group of bundles (6) is removably mounted inside the chamber (5).

7. A heat exchanger utilizing compression heat according to claim 1 wherein a heat discharge chamber (10) is provided in the casing between the heat source outlet (2) and the heat exchange chamber (5), and the ends of all the heat exchange tubes are exposed in the heat discharge chamber (10) and communicate with the heat source outlet (2) through the heat discharge chamber (10).

8. Heat exchanger using compression heat according to claim 1, characterized in that the cold source inlet (3) and the cold source outlet (4) are respectively arranged at both ends of the heat exchange chamber (5).

9. The heat exchanger using compressive heat according to claim 1, wherein the heat exchange chamber (5) is located at the middle of the housing, the heat conduction chamber (9) is located above the heat exchange chamber (5), the heat source inlet (1) and the heat source outlet (2) are respectively located at the top and the bottom of the housing, and the cold source inlet (3) and the cold source outlet (4) are respectively located at the upper side and the lower side of the heat exchange chamber (5).