CN216767767U

CN216767767U - Dry-type does not have oily screw compressor machine heat recovery management system

Info

Publication number: CN216767767U
Application number: CN202121422466.2U
Authority: CN
Inventors: 李洪均
Original assignee: Wanzhong Thermal Technology Guangzhou Co ltd
Current assignee: Wanzhong Thermal Technology Guangzhou Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2022-06-17
Anticipated expiration: 2031-06-25

Abstract

The utility model discloses a heat recovery management system of a dry type oil-free screw air compressor, which comprises a heat exchanger a, a heat exchanger b, a heat exchanger c and a heat exchanger d, wherein an inlet a is formed in the left side above the heat exchanger a, an outlet a is formed in the right side above the heat exchanger a, an outlet b is formed in the left side below the heat exchanger a, an inlet c and an inlet d are respectively formed in the upper sides and the right sides of the heat exchanger b, an outlet c and an outlet d are respectively formed in the lower sides below the left side and the right side of the heat exchanger b, an outlet e, an outlet f, an inlet e and an inlet f are respectively formed in the upper side, the lower side, the left side and the right side of the heat exchanger c, the outlet e, the outlet f, the inlet e and the inlet f are in one-to-one correspondence with the outlet c, the outlet d, the inlet c and the inlet d, and the heat exchanger d are respectively formed in the upper side, the lower side, the left side and the left side; the heat recovery management system of the dry-type oilless screw air compressor has the advantages of high electric energy recovery and reuse ratio, energy conservation, consumption reduction, stable operation, avoidance of scale formation of a heat exchanger and operation cost saving.

Description

Dry-type does not have oily screw compressor machine heat recovery management system

Technical Field

The utility model relates to the technical field of heat recovery, in particular to a heat recovery management system of a dry-type oilless screw air compressor.

Background

The air compressor waste heat recovery is a novel efficient waste heat utilization device, cold water is heated by absorbing waste heat of the air compressor, energy consumption is avoided, and the novel efficient waste heat utilization device is mainly used for solving the problems of life of staff, industrial hot water and the like;

the existing dry-type oil-free screw air compressor heat utilization is generally a final-stage (second-stage) heat energy recycling technology, the recycling rate is lower in the electric energy recycling proportion of about 30% of input shaft power, in the recycling process, the dry-type oil-free screw air compressor is easy to fluctuate and cannot be combined with efficiency, and the dry-type oil-free screw air compressor uses tap water as a cooling medium to cause the scaling phenomenon of a heat exchanger due to long-term heat circulation, so that the service life is reduced, and the running cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a heat recovery management system of a dry-type oilless screw air compressor, which has the advantages of high electric energy recovery and reuse ratio, energy conservation and consumption reduction, stable operation, avoidance of scale formation of a heat exchanger, and operation cost saving, and solves the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a dry-type does not have oily screw compressor machine heat recovery management system, includes heat exchanger an, heat exchanger b, heat exchanger c and heat exchanger d, import an has been seted up on heat exchanger a top left side, export an has been seted up on heat exchanger a top right side, export b has been seted up on heat exchanger a below left side, import c and import d have been seted up respectively to heat exchanger b left and right sides top, export c and export d have been seted up respectively to heat exchanger b left and right sides below, export e, export f, import e and import f have been seted up from top to bottom and have been seted up, export h, import g and import h have been seted up from top to bottom and have been exported g, export h, import g and import h and export c, export h, import e and import h, The outlet d, the inlet c and the inlet d correspond to each other one by one.

An inlet b is formed in the right side below the heat exchanger a, the inlet a is communicated with a three-way PID proportional integral valve through a pipeline, the three-way PID proportional integral valve is communicated with a circulating pump through a pipeline, a temperature sensor d is communicated between the circulating pump and the three-way PID proportional integral valve, an outlet a is communicated between the three-way PID proportional integral valve and the temperature sensor d, the circulating pump is communicated with a primary cooler, a secondary cooler and an engine oil cooler in parallel through a pipeline, the engine oil cooler is serially connected with a PID proportional integral valve c and a temperature sensor h in sequence through a pipeline, the temperature sensor h is communicated with an inlet d through a pipeline, the outlet d is communicated with a water collector a through a pipeline, the water collector a is communicated with the three-way PID proportional integral valve through a pipeline, the inlet c is communicated with cold-side water inlet through a pipeline, and a temperature sensor e is communicated between the cold-side water inlet and the inlet c, the outlet c is communicated with a water collector b through a pipeline, the water collector b is communicated with a temperature sensor j, the water collector b is communicated with an inlet e and an inlet g through pipelines respectively, the inlet f is communicated with a secondary cooler through a pipeline, the inlet h is communicated with a primary cooler through a pipeline, the outlet h and the outlet f are both communicated with a water collector d through pipelines, the water collector d is communicated with the inlet d through a pipeline, the outlet g and the outlet e are both communicated with a water collector c through pipelines, the water collector c is communicated with cold side water outlet through a pipeline, and a temperature sensor a is communicated between the cold side water outlet and the water collector c.

Preferably, the inlet b is connected with a water inlet through a pipeline, a temperature sensor c is communicated between the water inlet and the inlet b, the outlet b is connected with a water outlet through a pipeline, and a temperature sensor b is communicated between the outlet b and the water outlet.

Preferably, the right end of the water collector a is connected in series through a pipeline and is communicated with a PID proportional-integral valve a and a water replenishing port in one time.

Preferably, a PID proportional-integral valve b and a temperature sensor f are sequentially communicated in series between the primary cooler and the inlet h, and a PID proportional-integral valve d and a temperature sensor g are sequentially communicated in series between the secondary cooler and the inlet f.

Preferably, a PID proportional integral valve f and a PID proportional integral valve g are correspondingly communicated between the inlet e and the inlet g and the water collector b, and a temperature sensor k and a temperature sensor i are correspondingly communicated between the outlet g and the water collector c and between the outlet e.

Compared with the prior art, the utility model has the following beneficial effects:

1. the heat recovery management system of the dry type oilless screw air compressor adjusts the temperature of the water collector a through the heat exchanger a, is convenient for adjusting the water temperature of the water collector a, the drainage pipeline is adjusted through the three-way PID proportional-integral valve, the adjustment is conveniently carried out according to the opening and closing of the drainage pipeline, the power is provided by the circulating pump to ensure the circulation of water, the temperature of the water inlet and the temperature of the water outlet are detected by the temperature sensor b and the temperature sensor c to facilitate the detection of the water temperature, the temperature sensor d is used for detecting the water temperature at the circulating pump, so that the water temperature is convenient to detect, the water replenishing port is used for replenishing water, so that the water is convenient to replenish, control through PID proportional-integral valve a and open, conveniently control the moisturizing, carry out the heat transfer through heat exchanger b, make things convenient for the heat energy of lubricating oil to absorb, cool off machine oil through the machine oil cooler, make things convenient for the cooling of machine oil.

2. This dry-type does not have oily screw compressor machine heat recovery management system cools off through one-level cooler and second grade cooler, convenient cooling, the output of controlling one-level cooler and second grade cooler through PID proportional-integral valve b and PID proportional-integral valve d, convenient control, detect temperature data through temperature sensor f and temperature sensor g, make things convenient for the control by temperature change, carry out the heat transfer through heat exchanger c and heat exchanger d, make things convenient for the recovery of heat energy, collect water through water collector c and water collector d, make things convenient for the storage of water.

Drawings

FIG. 1 is a schematic diagram of a system structure of a heat recovery management system of a dry-type oil-free screw air compressor according to the present invention;

FIG. 2 is a schematic diagram of a heat exchanger a of a heat recovery management system of a dry-type oilless screw air compressor according to the present invention;

FIG. 3 is a schematic view of a heat exchanger b of the heat recovery management system of the dry-type oilless screw air compressor of the present invention;

FIG. 4 is a schematic view of a heat exchanger c of the heat recovery management system of the dry-type oilless screw air compressor of the present invention;

fig. 5 is a schematic diagram of a heat exchanger d of the heat recovery management system of the dry-type oilless screw air compressor of the utility model.

The figure is marked with: 1. water is discharged from the cold side; 2. a water inlet; 3. a temperature sensor a; 4. a temperature sensor b; 5. a temperature sensor c; 6. a heat exchanger a; 7. a circulation pump; 8. a temperature sensor d; 10. a three-way PID proportional integral valve; 11. a water replenishing port; 12. PID proportional integral valve a; 13. a water collector a; 14. a heat exchanger b; 15. water is fed into the cold side; 16. a temperature sensor e; 17. an oil cooler; 18. a secondary cooler; 19. a primary cooler; 20. a PID proportional-integral valve b; 21. a temperature sensor f; 22. a temperature sensor g; 23. a PID proportional-integral valve c; 24. a temperature sensor h; 25. a PID proportional-integral valve d; 26. a heat exchanger c; 27. PID proportional integral valve f; 28. a temperature sensor i; 29. a temperature sensor j; 30. a water collector b; 31. a water collector c; 32. a water collector d; 33. a heat exchanger d; 34. PID proportional integral valve g; 35. a temperature sensor k; 36. a water outlet; 601. an outlet a; 611. an inlet a; 602. an inlet b; 612. an outlet b; 141. an inlet c; 142. an outlet c; 143. an inlet d; 144. an outlet d; 261. an inlet e; 262. an outlet e; 263. an inlet f; 264. an outlet f; 331. an inlet g; 332. an outlet g; 333. an inlet h; 334. and (7) an outlet h.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1, 2, 3, 4 and 5, a heat recovery management system for a dry-type oil-free screw air compressor includes a heat exchanger a6, a heat exchanger b14, a heat exchanger c26 and a heat exchanger d33, wherein an inlet a611 is formed at the left side above the heat exchanger a6, an outlet a601 is formed at the right side above the heat exchanger a6, an outlet b612 is formed at the left side below the heat exchanger a6, an inlet c141 and an inlet d143 are respectively formed at the upper sides and the right sides of the heat exchanger b14, an outlet c142 and an outlet d144 are respectively formed at the lower sides and the left sides of the heat exchanger b14, an outlet e262, an outlet f264, an inlet e261 and an inlet f263 are respectively formed at the upper side and the lower side and the left side of the heat exchanger c26, an outlet e262, an outlet f264, an inlet e261 and an inlet f263 are respectively corresponding to the outlet c142, an outlet d144, an inlet c141 and an inlet d 387, an inlet d 387 are formed at the upper side and the lower side and the left side and the right side of the heat exchanger d 5, an outlet g332, an outlet h334, an inlet g331 and an inlet h333, an inlet 331 and an inlet h333, an outlet h334, an outlet g331, an inlet h333, an outlet h334, an inlet h333, an outlet h334, a g331 and an inlet h333, a g331, a g 333, a g 144 h333, and an inlet h333 are formed at the upper side and an outlet h333 are formed at the upper side and an inlet h333 are formed at the upper side and an upper side and a left side are formed at the upper side and a left side of the upper side of the heat exchanger d side of the heat, The inlet c141 and the inlet d143 are in one-to-one correspondence, the right side below the heat exchanger a6 is provided with an inlet b602, the inlet b602 is connected with a water inlet 2 through a pipeline, a temperature sensor c5 is communicated between the water inlet 2 and the inlet b602, an outlet b612 is connected with a water outlet 36 through a pipeline, a temperature sensor b4 is communicated between the outlet b612 and the water outlet 36, the inlet a611 is communicated with a three-way PID proportional integral valve 10 through a pipeline, the three-way PID proportional integral valve 10 is communicated with a circulating pump 7 through a pipeline, a temperature sensor d8 is communicated between the circulating pump 7 and the three-way PID proportional integral valve 10, an outlet a601 is communicated between the three-way PID proportional integral valve 10 and the temperature sensor d8, the circulating pump 7 is communicated with a primary cooler 19, a secondary cooler 18 and an engine oil cooler 17 through pipelines in parallel, the engine oil cooler 17 is serially connected with a PID proportional integral valve c23 and a temperature sensor h24 through pipelines in sequence, the temperature sensor h24 is communicated with the inlet d143 through a pipeline, the outlet d144 is communicated with a water collector a13 through a pipeline, the right end of the water collector a13 is serially connected with a PID proportional integral valve a12 and a water replenishing port 11 through a pipeline, the water collector a13 is communicated with a three-way PID proportional integral valve 10 through a pipeline, the inlet c141 is communicated with cold side inlet water 15 through a pipeline, and a temperature sensor e16 is communicated between the cold side inlet water 15 and the inlet c 141.

Concretely, adjust the temperature of water collector a13 through heat exchanger a6, make things convenient for water collector a13 temperature to adjust, adjust drainage pipe through tee bend PID proportional integral valve 10, the convenience is according to opening and closing to drainage pipe and adjust, provide power through circulating pump 7, guarantee the circulation of water, detect water inlet 2 temperature and delivery port 36 temperature through temperature sensor b4 and temperature sensor c5, make things convenient for the detection of temperature, detect the temperature of circulating pump 7 department through temperature sensor d8, make things convenient for the detection of temperature, make things convenient for water supply through moisturizing mouth 11, make things convenient for the replenishment of water, control through PID proportional integral valve a12 and open, conveniently control the moisturizing, carry out the heat transfer through heat exchanger b14, make things convenient for the heat energy absorption of lubricating oil, cool off machine oil through machine oil cooler 17, make things convenient for the cooling of machine oil.

Example 2:

referring to fig. 1, 2, 3, 4 and 5, a heat recovery management system for a dry-type oil-free screw air compressor includes a heat exchanger a6, a heat exchanger b14, a heat exchanger c26 and a heat exchanger d33, wherein an inlet a611 is formed on the left side above the heat exchanger a6, an outlet a601 is formed on the right side above the heat exchanger a6, an outlet b612 is formed on the left side below the heat exchanger a6, an inlet c141 and an inlet d143 are respectively formed on the upper sides and the right sides of the heat exchanger b14, an outlet c142 and an outlet d144 are respectively formed on the lower sides of the left side and the right side of the heat exchanger b14, an outlet e262, an outlet f264, an inlet e261 and an inlet f263 are respectively formed on the upper and the lower sides and the upper sides and the lower sides of the heat exchanger c26, an outlet e262, an outlet e261, an outlet f264, an inlet e261 and an inlet f263 are respectively corresponding to the outlet c142, an outlet d144, an inlet c141 and an inlet d143, an inlet d 333 are formed on the upper sides and the lower sides and the left and the lower sides and the upper sides and the lower sides of the heat exchanger d33, an outlet g332, an outlet h334, an inlet 331 and an inlet h333, an inlet 331, an outlet h333, an outlet h334, an inlet 331 and an inlet 333, an outlet h333, an outlet 332, an outlet h334, an inlet 333, an outlet h334, an inlet h333, an outlet h334, an inlet 144, and an inlet h333, and an inlet 144 h333 are formed on the upper side and the upper side of the lower side of the upper side of the lower side of the upper side of the lower side of the upper, The inlet c141 and the inlet d143 are in one-to-one correspondence, the outlet c142 is communicated with a water collector b30 through a pipeline, a temperature sensor j29 is communicated on the water collector b30, the water collector b30 is communicated with an inlet e261 and an inlet g331 through pipelines respectively, the inlet f263 is communicated with a secondary cooler 18 through a pipeline, the inlet h333 is communicated with a primary cooler 19 through a pipeline, the outlet h334 and the outlet f264 are communicated with a water collector d32 through pipelines respectively, the water collector d32 is communicated with the inlet d143 through a pipeline, the outlet g332 and the outlet e262 are communicated with a water collector c31 through pipelines respectively, the water collector c31 is communicated with a cold side outlet water 1 through a pipeline, a temperature sensor a3 is communicated between the cold side outlet water 1 and the water collector c31, a PID proportional integral valve b20 and a temperature sensor f21 are communicated between the primary cooler 19 and the inlet h333 in series, a PID proportional integral valve d25 and a temperature sensor g22 are communicated between the secondary cooler 18 and the inlet f263 in series, PID proportional-integral valves f27 and G34 are correspondingly communicated between the inlet e261 and the water collector b30 and between the inlet g331 and the water collector b30, and temperature sensors k35 and i28 are correspondingly communicated between the outlet g332 and the water collector c31 and between the outlet e 262.

Specifically, cool off through one-level cooler 19 and second grade cooler 18, convenient cooling, control the output of one-level cooler 19 and second grade cooler 18 through PID proportional integral valve b20 and PID proportional integral valve d25, convenient control, detect temperature data through temperature sensor f21 and temperature sensor g22, make things convenient for the temperature control, carry out the heat transfer through heat exchanger c26 and heat exchanger d33, make things convenient for the recovery of heat energy, carry out catchment through water collector c31 and water collector d32, make things convenient for the storage of water.

The working principle is as follows: the utility model relates to a heat recovery management system of a dry type oilless screw air compressor, when in use, the outlet of a primary cooler 19 is technically improved and shunted, the water flow is independently adjusted through a PID proportional integral valve b20, the water temperature passing through a PID proportional integral valve b20 is increased, a temperature sensor f21 detects the water temperature, hot water with the increased temperature enters an inlet h333 of a heat exchanger d33, flows out from an outlet h334 after being absorbed by cold-side medium water, enters a water collector d32, is connected with a PID proportional integral valve c23 arranged on a lubricating oil heat outlet pipe after coming out from a water collector d32 through a pipeline, simultaneously enters an inlet d143 of the heat exchanger b14, exchanges heat with cold water at an inlet c141 and then enters a water collector a13 from an outlet d144, the primary heat energy complete recovery is completed, the outlet of a secondary cooler 18 is technically improved and shunted, the water flow is independently adjusted through the PID proportional integral valve d25, the water temperature passing through a PID proportional integral valve d25 is increased, the temperature sensor g22 detects the water temperature, the hot water with the temperature raised enters the inlet f263 of the heat exchanger c26, the hot water with the temperature raised enters the outlet f264 and flows out after being absorbed by the medium water of the cold side, the hot water enters the water collector d32, the hot water comes out of the water collector d32 and is connected with the PID proportional integral valve c23 arranged on the lubricating oil hot water outlet pipe through a pipeline, the hot water enters the inlet d143 of the heat exchanger b14, the heat energy and the cold water with the inlet c141 exchange heat and then enters the water collector a13 from the outlet d144, the secondary heat energy full recovery is completed, the oil cooler 17 outlet is technically changed and shunted, the water flow is independently adjusted through the PID proportional integral valve c23, the water temperature is raised through the PID proportional integral valve c23, the temperature sensor h24 detects the water temperature, the hot water with the temperature raised temperature enters the inlet d143 of the heat exchanger b14, the hot water with the cold side absorbed by the medium water and then flows out of the outlet d144 and enters the water into the water collector a13, the heat energy lubricating oil full recovery is completed, after the heat recovery of the primary cooling water, the secondary cooling water and the lubricating oil hot side cooling water is completed, the cooling water simultaneously enters a water collector a13, a three-way PID proportional-integral valve 10 is installed at an outlet of a water collector a13, the hot side cooling water enters the three-way PID proportional-integral valve 10 from an outlet of the water collector a13 and flows out from an inlet a611 or an outlet a601, at this time, which channel to flow out depends on the temperature detection of a temperature sensor d8, the inlet a611 is communicated with a heat exchanger a6, the heat exchanger a6 is used for adjusting the temperature of the outlet of the water collector a13, when the temperature of the outlet of the water collector a13 exceeds a set value, the cooling water at the outlet of the water collector a13 enters the heat exchanger a6 through the inlet a611 to be cooled and then enters a circulating pump 7 from the outlet a601, the outlet of the circulating pump 7 returns the cooling water at the hot side to the main inlet pipeline of the original screw cooling system of the dry oil-free air compressor, and then flows out from outlets of the primary cooler 19, the secondary cooler 18 and the oil cooler 17, thus, a cycle is completed, when cold side water initially enters the inlet c141 of the heat exchanger b14 from the cold side inlet water 15 to absorb the heat energy of the lubricating oil and the secondary heat energy, the cold side water enters the water collector b30 from the outlet c142, then enters the inlets g331 and e261 of the heat exchanger d33 and the heat exchanger c26 respectively, so that the primary heat energy of the secondary heat energy is absorbed, the primary heat energy of the secondary heat energy of the heat exchanger d33 and the secondary heat energy of the heat exchanger c26 are converged and enter the water collector c31, and the heat energy output from the water collector c31 enters the use end, so that the heat energy recycling of the dry oil-free screw air compressor is completed.

While there have been shown and described the fundamental principles and essential features of the utility model and advantages thereof, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not to be construed as limiting the claims.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a dry-type does not have oily screw air compressor machine heat recovery management system which characterized in that: the heat exchanger comprises a heat exchanger a (6), a heat exchanger b (14), a heat exchanger c (26) and a heat exchanger d (33), wherein an inlet a (611) is formed in the left side above the heat exchanger a (6), an outlet a (601) is formed in the right side above the heat exchanger a (6), an outlet b (612) is formed in the left side below the heat exchanger a (6), an inlet c (141) and an inlet d (143) are formed in the upper side and the right side above the heat exchanger b (14), an outlet c (142) and an outlet d (144) are formed in the lower side below the left side and the right side of the heat exchanger b (14), an outlet e (262), an outlet f (264), an inlet e (261) and an inlet f (263) are formed in the upper, lower, left and right sides of the heat exchanger c (26), and outlet e (262), outlet f (264), inlet e (261) and inlet f (263) are formed in the upper, lower, left and right sides of the outlet c (142), outlet d (144), The heat exchanger d (33) is provided with outlets g (332), outlets h (334), inlets g (331) and inlets h (333), wherein the outlets g (332), the outlets h (334), the inlets g (331) and the inlets h (333) are in one-to-one correspondence with the outlets c (142), the outlets d (144), the inlets c (141) and the inlets d (143);

an inlet b (602) is formed in the right side below the heat exchanger a (6), the inlet a (611) is communicated with a three-way PID proportional-integral valve (10) through a pipeline, the three-way PID proportional-integral valve (10) is communicated with a circulating pump (7) through a pipeline, a temperature sensor d (8) is communicated between the circulating pump (7) and the three-way PID proportional-integral valve (10), an outlet a (601) is communicated between the three-way PID proportional-integral valve (10) and the temperature sensor d (8), the circulating pump (7) is communicated with a primary cooler (19), a secondary cooler (18) and an engine oil cooler (17) in parallel through pipelines, the engine oil cooler (17) is serially connected with a PID proportional-integral valve c (23) and a temperature sensor h (24) in sequence through pipelines, the temperature sensor h (24) is communicated with an inlet d (143) through a pipeline, and the outlet d (144) is communicated with a water collector a (13) through a pipeline, the water collector a (13) is communicated with a three-way PID proportional-integral valve (10) through a pipeline, the inlet c (141) is communicated with cold-side inlet water (15) through a pipeline, a temperature sensor e (16) is communicated between the cold-side inlet water (15) and the inlet c (141), the outlet c (142) is communicated with a water collector b (30) through a pipeline, a temperature sensor j (29) is communicated with the water collector b (30), the water collector b (30) is respectively communicated with an inlet e (261) and an inlet g (331) through pipelines, the inlet f (263) is communicated with a secondary cooler (18) through a pipeline, the inlet h (333) is communicated with a primary cooler (19) through a pipeline, the outlet h (334) and the outlet f (264) are both communicated with a water collector d (32) through pipelines, and the water collector d (32) is communicated with an inlet d (143) through a pipeline, the outlet g (332) and the outlet e (262) are both communicated with a water collector c (31) through a pipeline, the water collector c (31) is communicated with cold-side outlet water (1) through a pipeline, and a temperature sensor a (3) is communicated between the cold-side outlet water (1) and the water collector c (31).

2. The heat recovery management system of the dry type oil-free screw air compressor as claimed in claim 1, wherein: the water inlet b (602) is connected with a water inlet (2) through a pipeline, a temperature sensor c (5) is communicated between the water inlet (2) and the inlet b (602), the outlet b (612) is connected with a water outlet (36) through a pipeline, and a temperature sensor b (4) is communicated between the outlet b (612) and the water outlet (36).

3. The heat recovery management system of the dry type oil-free screw air compressor as claimed in claim 1, wherein: the right end of the water collector a (13) is connected in series through a pipeline and is communicated with a PID proportional-integral valve a (12) and a water replenishing port (11) in one time.

4. The heat recovery management system of the dry type oil-free screw air compressor as claimed in claim 1, wherein: and a PID proportional-integral valve b (20) and a temperature sensor f (21) are sequentially communicated in series between the primary cooler (19) and the inlet h (333), and a PID proportional-integral valve d (25) and a temperature sensor g (22) are sequentially communicated in series between the secondary cooler (18) and the inlet f (263).

5. The heat recovery management system for the dry type oil-free screw air compressor as claimed in claim 1, wherein: PID proportional-integral valves f (27) and G (34) are correspondingly communicated between the inlets e (261) and g (331) and the water collector b (30), and temperature sensors k (35) and i (28) are correspondingly communicated between the outlets g (332) and e (262) and the water collector c (31).