CN220581271U

CN220581271U - Screw air compressor waste heat recovery device

Info

Publication number: CN220581271U
Application number: CN202322145108.7U
Authority: CN
Inventors: 罗月宏; 李无极
Original assignee: Chongqing Prism Energy Technology Co ltd
Current assignee: Chongqing Prism Energy Technology Co ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-03-12
Anticipated expiration: 2033-08-10

Abstract

The utility model provides a waste heat recovery device of a screw air compressor, which comprises a radiating water tank, a partition plate, a water inlet pipeline, a drainage pipeline and a circulating oil way, wherein the partition plate is arranged on the lower side of the radiating water tank; the plurality of partition plates are arranged in the radiating water tank to divide the radiating water tank into a plurality of cavities; the water inlet pipeline can respectively send water into the plurality of cavities; the drainage pipeline can drain the water in the plurality of cavities respectively; the circulating oil way comprises a lubricating pipeline and a recovery pipeline; the lubrication pipeline can lubricate the screw air compressor, and the recovery pipeline sequentially extends into the cavities. The lubricating oil sequentially passes through the cavities, so that the heat absorbed by each cavity in unit time is different, when clear water in a certain cavity reaches a certain temperature, clear water in the cavity is discharged to a designated position through a water discharge pipeline, and then water is added through a water inlet pipeline; and other cavities continue to absorb the waste heat because the temperature does not reach the designated temperature, the operation of a circulating oil way is not influenced, and the waste of the waste heat in the lubricating oil is reduced.

Description

Screw air compressor waste heat recovery device

Technical Field

The utility model relates to the technical field of waste heat recovery of air compressors, in particular to a waste heat recovery device of a screw air compressor.

Background

In the long-term continuous working process of the screw air compressor, electric energy is converted into mechanical energy, the mechanical energy is converted into heat energy, in the process of converting the mechanical energy into heat energy, air is subjected to strong high-pressure compression to lead the temperature of the air to rise suddenly, the phenomenon is common physical mechanical energy conversion, the high-speed rotation of a mechanical screw rod generates friction heat at the same time, the generated high heat is mixed into oil/gas vapor by adding lubricating oil of the air compressor, and the heat of the part of high-temperature/gas flow discharged out of the machine body is equivalent to 3/4 of the input power of the air compressor; when the screw air compressor works, a large amount of heat is generated, and the heat is brought out of the machine body through lubricating oil.

In order to reduce the waste of energy, a large amount of heat generated by the screw air compressor is generally required to be recovered; in the prior art, the waste heat in the screw air compressor is usually brought out through lubricating oil, the lubricating oil with the waste heat is brought into the heat-dissipating water tank through a pipeline, the lubricating oil is cooled through clear water in the heat-dissipating water tank, and the clear water in the heat-dissipating water tank is heated through the waste heat brought out by the lubricating oil; the heated hot water is used for daily life, so that the effect of waste heat recovery and utilization is achieved.

For example, patent publication number CN219281977U discloses a screw air compressor waste heat recoverer, comprising a base, an oil tank, an oil filling pipe, an oil outlet pipe and an oil outlet valve, wherein the oil tank is installed at the top end of the base, the oil filling pipe is fixedly connected with the top end of the oil tank, the bottom of one side of the oil tank is connected with the oil outlet pipe, and the oil outlet valve is installed on the oil outlet pipe; still include heat recovery mechanism, filtering mechanism and supporting mechanism, heat recovery mechanism includes cooling water tank, returns oil pipe, heat exchange tube, connecting pipe, gate valve, inlet tube, outlet pipe and two valves, and heat recovery mechanism installs the top right part at the base, retrieves the lubricated waste heat that has of screw air compressor machine.

However, when the device is used for recycling the screw air compressor, after the clear water in the heat-dissipating water tank is heated to the designated temperature by the lubricating oil in the oil return pipe, the heated water in the heat-dissipating water tank is required to be discharged, and then new clear water is injected, so that the screw air compressor is required to stop in a short time for waste heat recycling, the lubricating oil part in the oil return pipe is not cooled by the clear water, and the waste of partial waste heat is caused.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model mainly solves the technical problems as follows: after the clear water in the radiating water tank is heated to a specified temperature by the lubricating oil in the oil return pipe, the heated water in the radiating water tank is required to be discharged, and then new clear water is injected, so that the waste heat recovery of the screw air compressor needs a short time to stop, the lubricating oil part in the oil return pipe is not cooled by the clear water, and the waste of partial waste heat is caused.

In order to solve the technical problems, the utility model adopts the following technical scheme: a screw air compressor waste heat recovery device, comprising:

a heat radiation water tank;

the separation plates are arranged in the radiating water tank to separate the radiating water tank into a plurality of cavities;

the water inlet pipeline can respectively send water into the plurality of cavities;

a drain line that can drain water in the plurality of chambers, respectively; and

The circulating oil way comprises a lubricating pipeline and a recycling pipeline; the lubrication pipeline can lubricate the screw air compressor, and the recovery pipeline sequentially extends into the cavities.

According to the utility model, clear water is introduced into the plurality of cavities through the water inlet pipeline, then the action of the circulating oil way is controlled, so that lubricating oil circulates in the circulating oil way, when the lubricating oil flows into the lubricating pipeline, the lubricating oil can lubricate the screw air compressor and absorb heat generated by the screw air compressor, then the lubricating oil carries waste heat to flow into the recovery pipeline, and the recovery pipeline drives the lubricating oil to sequentially pass through the plurality of cavities, so that the clear water in the plurality of cavities is continuously absorbed, and the waste heat is recovered; the lubricating oil sequentially passes through the plurality of cavities, so that the heat absorbed by the first cavity is the most, the heat absorbed by the last cavity is the least, and the heat absorbed by each cavity in unit time is different, so that when clear water in a certain cavity reaches a certain temperature, clear water in the cavity is discharged to a designated position through a water discharge pipeline, and new clear water is added through a water inlet pipeline after the discharge is finished; and other cavities continue to absorb the waste heat because the temperature does not reach the designated temperature, the operation of a circulating oil way is not influenced, and the waste of the waste heat in the lubricating oil is reduced.

Preferably, the recovery pipeline comprises a plurality of radiating pipes, the radiating pipes are in one-to-one correspondence with the cavities, the radiating pipes are sequentially communicated, the radiating pipes are located in the cavities, and the radiating pipes are in reciprocating folding arrangement. The radiating pipes are arranged in the S shape of reciprocating folding, so that the contact area between the radiating pipes and clean water can be increased in the limited cavity, and the efficiency of absorbing waste heat by the clean water is improved.

Preferably, a plurality of radiating fins are fixedly arranged on each radiating tube. The contact area with clean water can be further increased through the radiating fins, and the efficiency of the clean water on waste heat absorption is improved.

Preferably, the water inlet pipeline comprises a water inlet branch pipe, a water inlet main pipe, a water inlet valve, a water supply tank and a water supply pump; the water inlet branch pipes are in one-to-one correspondence with the cavities, one end of each water inlet branch pipe is communicated with the water inlet main pipe, and each water inlet branch pipe is provided with a water inlet valve; the water inlet main pipe is communicated with the water supply tank, and the water supply pump is arranged on the water inlet main pipe. The water supply pump pumps clean water in the water supply tank into the water inlet branch pipes through the water inlet main pipe, and the clean water is supplemented into the cavity through the water inlet branch pipes.

Preferably, the drainage pipeline comprises a drainage branch pipe, a drainage main pipe, a drainage valve, a water collecting tank and a drainage pump; the drainage branch pipes are in one-to-one correspondence with the cavities, one end of each drainage branch pipe is communicated with the drainage main pipe, and each drainage branch pipe is provided with a drainage valve; the drainage header pipe is communicated with the water collecting tank, and the drainage pump is arranged on the drainage header pipe. The drainage pump is through drainage house steward and the drainage branch pipe that corresponds, in with the cavity water pump to the header tank to this is discharged and is collected the water in the cavity, and the water after collecting in the header tank can supply daily life to use.

Preferably, a valve switch is arranged on the circulating oil path. The on-off of the circulating oil way can be controlled through the valve switch, and the circulating oil way can be controlled when accidents happen.

Preferably, an oil cooler is mounted on the lubrication line. The lubricating pipeline can be cooled through the oil cooler, so that the cooling of the screw air compressor is realized.

Preferably, an oil filter is mounted on the lubrication line. The lubricating oil can be filtered through the oil filter, so that impurities in the lubricating oil are reduced, and the lubricating effect on the screw air compressor can be improved.

Compared with the prior art, the utility model has at least the following advantages:

1. the lubricating oil sequentially passes through a plurality of cavities, the heat absorbed by the first cavity is the most, and the heat absorbed by the last cavity is the least, so that the heat absorbed by each cavity in unit time is different, when clear water in a certain cavity reaches a certain temperature, clear water in the cavity is discharged to a designated position through a water discharge pipeline, and new clear water is added through a water inlet pipeline after the discharge is finished; and other cavities continue to absorb the waste heat because the temperature does not reach the designated temperature, the operation of a circulating oil way is not influenced, and the waste of the waste heat in the lubricating oil is reduced.

2. Through setting up the radiating pipe into the S form of reciprocal folding to can increase the area of contact with clear water in limited cavity, and can further increase the area of contact with clear water through the fin, with this efficiency that improves clear water to waste heat absorption.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described. Throughout the drawings, the elements or portions are not necessarily drawn to actual scale.

Fig. 1 is a schematic structural diagram of a waste heat recovery device of a screw air compressor according to the present embodiment.

Fig. 2 is a top cross-sectional view of the radiator tank, the water inlet pipe and the water discharge pipe provided in the present embodiment.

Fig. 3 is a top cross-sectional view of the radiator tank and the radiator pipe provided in the present embodiment.

Fig. 4 is a front sectional view of the radiator tank and the radiator pipe provided in the present embodiment.

Reference numerals: 1-radiating water tank, 2-partition plate, 3-cavity, 4-water inlet pipeline, 41-water inlet branch pipe, 42-water inlet main pipe, 43-water inlet valve, 44-water supply tank, 45-water supply pump, 5-water discharge pipeline, 51-water discharge branch pipe, 52-water discharge main pipe, 53-water discharge valve, 54-water collection tank, 55-water discharge pump, 6-circulating oil circuit, 61-lubrication pipeline, 62-recovery pipeline, 621-radiating pipe, 622-radiating fin, 7-valve switch, 8-oil cooler and 9-oil filter.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

In the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-4, embodiments provided by the present utility model: a screw air compressor waste heat recovery device, comprising: the radiator comprises a radiating water tank 1, a partition plate 2, a water inlet pipeline 4, a drainage pipeline 5 and a circulating oil way 6; a plurality of partition plates 2 are installed in the radiator tank 1 to partition the radiator tank 1 into a plurality of chambers 3; the water inlet pipeline 4 can respectively send water into the plurality of cavities 3; the water discharge pipeline 5 can respectively discharge the water in the plurality of cavities 3; the circulation oil passage 6 includes a lubrication line 61 and a recovery line 62; the lubrication pipeline 61 can lubricate the screw air compressor, and the recovery pipeline 62 sequentially extends into the plurality of cavities 3.

In specific implementation, clean water is introduced into the plurality of cavities 3 through the water inlet pipeline 4, then the circulation oil way 6 is controlled to act, so that lubricating oil circulates in the circulation oil way 6, when the lubricating oil flows into the lubricating pipeline 61, the lubricating oil can lubricate the screw air compressor and absorb heat generated by the screw air compressor, then the lubricating oil carries waste heat to flow into the recovery pipeline 62, the recovery pipeline 62 drives the lubricating oil to sequentially pass through the plurality of cavities 3, so that the clean water in the plurality of cavities 3 is continuously absorbed, and the waste heat is recovered; because the lubricating oil sequentially passes through the plurality of cavities 3, the heat absorbed by the first cavity 3 is the most, and the heat absorbed by the last cavity 3 is the least, so that the heat absorbed by each cavity 3 in unit time is different, when the clear water in one cavity 3 reaches a certain temperature, the clear water in the cavity 3 is discharged to a designated position through the water discharge pipeline 5, and new clear water is added through the water inlet pipeline 4 after the discharge is finished; and other cavities 3 continue to absorb the waste heat because the temperature does not reach the designated temperature, the operation of the circulating oil way 6 is not affected, and the waste of the waste heat in the lubricating oil is reduced.

Referring to fig. 1-4, in other embodiments, the recycling pipeline 62 includes a plurality of heat dissipating pipes 621, the plurality of heat dissipating pipes 621 are in one-to-one correspondence with the cavity 3, the plurality of heat dissipating pipes 621 are sequentially communicated, the heat dissipating pipes 621 are located in the cavity 3, and the heat dissipating pipes 621 are in a reciprocating folding arrangement. The heat radiating pipe 621 is arranged in a reciprocating folded S shape, so that the contact area with clean water can be increased in the limited cavity 3, and the waste heat absorption efficiency of the clean water is improved. Further, a plurality of cooling fins 622 are fixedly installed on each cooling pipe 621. The contact area with the clean water can be further increased through the cooling fins 622, and the efficiency of the clean water on waste heat absorption is improved. Specifically, the heat dissipation pipe 621 and the heat dissipation fin 622 may be made of materials such as iron and aluminum that are easy to conduct heat.

Referring to fig. 1-4, in other embodiments, the water intake line 4 includes a water intake manifold 41, a water intake manifold 42, a water intake valve 43, a water supply tank 44, and a water supply pump 45; the water inlet branch pipes 41 are in one-to-one correspondence with the cavities 3, one end of each water inlet branch pipe 41 is communicated with the water inlet main pipe 42, and each water inlet branch pipe 41 is provided with a water inlet valve 43; the water inlet manifold 42 communicates with a water supply tank 44, and a water supply pump 45 is mounted on the water inlet manifold 42. Specifically, when the cavity 3 is empty, the corresponding water inlet valve 43 is opened and the water supply pump 45 is controlled to act, the water supply pump 45 pumps clean water in the water supply tank 44 into the water inlet branch pipe 41 through the water inlet main pipe 42, and the clean water is replenished into the cavity 3 through the water inlet branch pipe 41.

Referring to fig. 1 to 4, in other embodiments, the drain line 5 includes a drain branch pipe 51, a drain header pipe 52, a drain valve 53, a water collection tank 54, and a drain pump 55; the drainage branch pipes 51 are in one-to-one correspondence with the cavities 3, one end of each drainage branch pipe 51 is communicated with the drainage main pipe 52, and each drainage branch pipe 51 is provided with a drainage valve 53; the drain header 52 communicates with the water collection tank 54, and the drain pump 55 is mounted on the drain header 52. Specifically, after the clean water in the cavity 3 reaches a certain temperature, the drain valve 53 corresponding to the cavity 3 is opened, the drain pump 55 is opened, and the drain pump 55 pumps the water in the cavity 3 into the water collection tank 54 through the drain main pipe 52 and the corresponding drain branch pipe 51, so that the water in the cavity 3 is drained and collected, and the water collected in the water collection tank 54 can be used for daily life.

Referring to fig. 1-4, in a further embodiment, a valve switch 7 is mounted on the circulation oil path 6. The on-off of the circulating oil path 6 can be controlled through the valve switch 7, and the circulating oil path 6 can be controlled when accidents happen. Further, the lubricating line 61 is provided with an oil cooler 8; the lubrication line 61 can be cooled by the oil cooler 8 to realize cooling of the screw air compressor. Further, the lubrication line 61 is provided with an oil filter 9; the lubricating oil can be filtered through the oil filter 9, so that impurities in the lubricating oil are reduced, and the lubricating effect on the screw air compressor can be improved.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.

Claims

1. The utility model provides a screw air compressor machine waste heat recovery device which characterized in that includes:

a heat radiation water tank;

2. The waste heat recovery device of a screw air compressor according to claim 1, wherein the recovery pipeline comprises a plurality of radiating pipes, the radiating pipes are in one-to-one correspondence with the cavities, the radiating pipes are sequentially communicated, the radiating pipes are located in the cavities, and the radiating pipes are in reciprocating folding arrangement.

3. The waste heat recovery device of a screw air compressor according to claim 2, wherein a plurality of radiating fins are fixedly installed on each radiating pipe.

4. The waste heat recovery device of a screw air compressor according to claim 1, wherein the water inlet pipeline comprises a water inlet branch pipe, a water inlet main pipe, a water inlet valve, a water supply tank and a water supply pump; the water inlet branch pipes are in one-to-one correspondence with the cavities, one end of each water inlet branch pipe is communicated with the water inlet main pipe, and each water inlet branch pipe is provided with a water inlet valve; the water inlet main pipe is communicated with the water supply tank, and the water supply pump is arranged on the water inlet main pipe.

5. The waste heat recovery device of a screw air compressor according to claim 1, wherein the drainage pipeline comprises a drainage branch pipe, a drainage main pipe, a drainage valve, a water collection tank and a drainage pump; the drainage branch pipes are in one-to-one correspondence with the cavities, one end of each drainage branch pipe is communicated with the drainage main pipe, and each drainage branch pipe is provided with a drainage valve; the drainage header pipe is communicated with the water collecting tank, and the drainage pump is arranged on the drainage header pipe.

6. The waste heat recovery device of a screw air compressor according to claim 1, wherein a valve switch is installed on the circulation oil path.

7. The waste heat recovery device of a screw air compressor according to claim 1, wherein an oil cooler is installed on the lubrication line.

8. The waste heat recovery device of a screw air compressor according to claim 1, wherein an oil filter is installed on the lubrication pipeline.