CN212179217U - Exhaust steam waste heat recovery type absorption heat pump unit - Google Patents
Exhaust steam waste heat recovery type absorption heat pump unit Download PDFInfo
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- CN212179217U CN212179217U CN202020361122.4U CN202020361122U CN212179217U CN 212179217 U CN212179217 U CN 212179217U CN 202020361122 U CN202020361122 U CN 202020361122U CN 212179217 U CN212179217 U CN 212179217U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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Abstract
The utility model belongs to the technical field of waste heat recovery equipment, and discloses an exhaust steam waste heat recovery type absorption heat pump unit, which comprises an evaporator, an absorber, a regenerator, a condenser, a heat exchanger, a heat recoverer, a cryogen pump, a dilute solution pump, a concentrated solution pump and an exhaust steam condensate tank; the system comprises an absorber, a dilute solution pump, a heat exchanger, a regenerator, a concentrated solution pump and the absorber, wherein the absorber, the dilute solution pump, the heat exchanger, the regenerator, the concentrated solution pump and the absorber are sequentially connected to form a circulating mechanism; the evaporator is connected with the exhaust steam condensate tank, and the absorber is connected with the heat recoverer through a pipeline; the evaporator and the absorber are separately arranged in two boxes and are connected through the boxes. The unit can recover a large amount of waste heat in the exhaust steam, improve the energy utilization rate and realize energy conservation and emission reduction.
Description
Technical Field
The utility model belongs to the technical field of waste heat recovery equipment, the utility model particularly relates to an exhaust steam waste heat recovery type absorption heat pump unit.
Background
The exhaust steam is steam with low temperature and pressure, and the energy grade of the exhaust steam is low. Due to the fact that the exhaust steam generated by the process or the exhaust steam artificially produced by the process is needed, a large amount of exhaust steam is discharged by a plurality of enterprises, the large amount of exhaust steam is discharged outwards without being recovered energy due to technical reasons, and great energy loss and waste are caused. The reasonable recycling of the dead steam creates huge economic benefits for enterprises, improves the utilization rate of energy sources, and further achieves the purposes of energy conservation and emission reduction.
Disclosure of Invention
In order to solve the above problems, the utility model provides an exhaust steam waste heat recovery type absorption heat pump unit, this unit uses exhaust steam as one of the drive heat sources, realizes preparing the purpose of high temperature hot water. The recycling of the dead steam is realized, economic benefits are created for enterprises, the utilization rate of energy is improved, and the purposes of energy conservation and emission reduction are achieved.
The utility model provides a technical scheme that its technical problem adopted is: the provided exhaust steam waste heat recovery absorption heat pump unit comprises an evaporator, an absorber, a regenerator, a condenser, a heat exchanger, a heat recoverer, a refrigerant pump, a dilute solution pump, a concentrated solution pump and an exhaust steam condensate tank; the system comprises an absorber, a dilute solution pump, a heat exchanger, a regenerator, a concentrated solution pump and the absorber, wherein the absorber, the dilute solution pump, the heat exchanger, the regenerator, the concentrated solution pump and the absorber are sequentially connected to form a circulating mechanism; the evaporator is connected with the exhaust steam condensate tank, and the absorber is connected with the heat recoverer in parallel through a pipeline; the evaporator and the absorber are separately arranged in two boxes and are connected through the boxes.
The condenser is connected with a warm water outlet through a pipeline; the regenerator is connected with the steam inlet through a pipeline; the condenser and the heat recoverer are respectively connected with a warm water outlet; the regenerator, the heat recoverer and the steam condensate outlet are sequentially connected; the absorber and the heat recoverer are respectively connected with a warm water inlet; the evaporator is connected with the dead steam inlet.
The exhaust steam condensate tank is connected with the exhaust steam condensate outlet through an exhaust steam condensate pump.
The exhaust steam condensation water tank is arranged at the tail end of the external exhaust steam system.
And a liquid level electrode and a system air extraction pipeline are arranged on the exhaust steam condensation water tank.
The system comprises an absorber, a heat exchanger, a regenerator and the like, wherein the absorber, a dilute solution pump, the heat exchanger, the regenerator, a concentrated solution pump and the absorber are sequentially connected to form a circulating mechanism, namely, the concentrated lithium bromide solution absorbs refrigerant steam evaporated in an evaporator and then becomes dilute solution, enters the heat exchanger through a pump and a pipeline, then enters the regenerator to become concentrated lithium bromide solution, and then returns to the absorber; the condenser and the evaporator are used for circulating refrigerant water, and the refrigerant water from the condenser enters the evaporator through throttling and pressure reduction. And the exhaust steam enters the evaporator, transfers heat to refrigerant water in the evaporator, condenses into water, and is discharged through an exhaust steam condensate pump after condensing. High-temperature steam enters the regenerator, transfers heat to the lithium bromide dilute solution, condenses into water, enters the heat recovery device for heat exchange, and is discharged. Most of warm water enters the absorber to obtain the heat of the dead steam absorbed by the lithium bromide solution and then enters the condenser to obtain the heat of the refrigerant evaporated in the regenerator, and a small part of warm water enters the heat recoverer to absorb the heat of the condensed steam and condensed water in the heat recoverer and then is converged with most of warm water to supply the heated hot water to the user together, so that the aim of preparing warm water is finally fulfilled. The internal connection mode of the whole unit is different from the connection mode of the traditional absorption heat pump, and the evaporator and the absorber are distributed. Namely, the evaporator and the absorber are respectively arranged in the two boxes and are connected through the boxes.
In addition, because the dead steam is used as a heat source, the air tightness of the unit has extra high requirements, for example, a sealing flange is used for ensuring the air tightness of an inlet, and the pipeline is connected in a welding mode and the like as much as possible, so that the leakage is avoided.
Compared with the prior art, the utility model beneficial effect who has is:
on the basis of a traditional heat pump, the special point of the exhaust steam is combined, the heat of the exhaust steam is effectively recovered in the independently placed evaporator, high-temperature hot water is provided for users, the exhaust steam condensate is effectively discharged out of the unit, the obtained heat brings practical economic benefits for enterprises, the utilization rate of energy is improved, and energy conservation and emission reduction are realized.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a system diagram of a conventional absorption heat pump unit of a type;
fig. 2 is a structural diagram of an exhaust steam waste heat recovery absorption heat pump unit of the present invention;
in the figure: the system comprises an evaporator 1, an absorber 2, a regenerator 3, a condenser 4, a heat exchanger 5, a heat recoverer 6, a refrigerant 7 pump, a dilute solution pump 8, a concentrated solution pump 9, a dead steam condensate pump 10, a dead steam condensate tank 11, a liquid level electrode 12, a system air suction pipeline 13, a dead steam inlet 14, a dead steam condensate outlet 15, a warm water outlet 16, a warm water inlet 17, a steam inlet 18, a steam condensate outlet 19, a cold water outlet 20 and a cold water inlet 21.
Detailed Description
The present invention will be further described with reference to the drawings attached to the specification, but the present invention is not limited to the following embodiments.
Example 1
Fig. 1 shows a structural diagram of an exhaust steam waste heat recovery absorption heat pump unit of the present invention, which includes an evaporator 1, an absorber 2, a regenerator 3, a condenser 4, a heat exchanger 5, a heat recovery unit 6, a refrigerant pump 7, a dilute solution pump 8, a concentrated solution pump 9, and an exhaust steam condensate tank 11; the system comprises an absorber 2, a dilute solution pump 8, a heat exchanger 5, a regenerator 3, a concentrated solution pump 9 and the absorber 2, wherein the absorber 2, the dilute solution pump 8, the heat exchanger 5, the regenerator 3, the concentrated solution pump 9 and the absorber 2 are sequentially connected to form a circulating mechanism, the evaporator 1 is connected with the absorber 2, and a condenser 4 is respectively connected with the evaporator 1 and the absorber 2; the evaporator 1 is connected with a dead steam condensation water tank 11, and the absorber 2 is connected with the heat recoverer 6 in parallel through a pipeline; the evaporator 1 is placed in two boxes separately from the absorber 2, and is connected by the boxes.
The condenser 4 is connected with a warm water outlet 16 through a pipeline; the regenerator 3 is connected with a steam inlet 18 through a pipeline; the condenser 4 and the heat recoverer 6 are respectively connected with a warm water outlet 17; the regenerator 3, the heat recoverer 6 and the steam condensate outlet 19 are sequentially connected; the absorber 2 and the heat recoverer 6 are respectively connected with a warm water inlet 17; the evaporator 1 is connected to a dead steam inlet 14.
The exhaust steam condensate tank 11 is connected with an exhaust steam condensate outlet 15 through an exhaust steam condensate pump 10.
The exhaust steam condensation water tank 11 is arranged at the tail end of an external exhaust steam system.
And a liquid level electrode 12 and a system air extraction pipeline 13 are arranged on the dead steam condensation water tank 11.
Wherein the absorber 2, regenerator 3, it is the lithium bromide solution circulation with heat exchanger 5, namely absorber 2, dilute solution pump 8, heat exchanger 5, regenerator 3, concentrated solution pump 9, absorber 2 connect gradually in proper order and constitute the circulation mechanism, the dilute solution of lithium bromide that comes out from absorber 2 gets into 5 heat exchangers through dilute solution pump 8 and pipeline promptly, get into regenerator 3 through the pipeline after obtaining the partial heat of the concentrated solution of lithium bromide, become the concentrated solution of lithium bromide by the heating of high temperature steam, the concentrated solution of lithium bromide gets into heat exchanger 5, after transmitting partial heat to the dilute solution of lithium bromide, get back to absorber 2 again, the refrigerant steam in the concentrated solution absorption evaporimeter 1 becomes dilute solution. The evaporator 1 and the condenser 4 are in refrigerant water circulation, refrigerant water from the condenser 4 enters the evaporator 1 after throttling and pressure reduction, the refrigerant water in the evaporator 1 is dripped on the upper part of the evaporator 1, heat of exhaust steam flowing in a pipe of the evaporator 1 is evaporated and absorbed, the exhaust steam loses heat and is condensed into exhaust steam condensate, and the exhaust steam condensate enters the exhaust steam condensate tank 11 and is discharged out of the unit through the exhaust steam condensate pump 10. The exhaust steam condensate tank 11 is provided with a liquid level electrode 12 and a system air extraction pipeline 13, the liquid level electrode 12 is used for controlling the starting and stopping and frequency conversion of the exhaust steam condensate pump 10, and the system air extraction pipeline 13 is used for extracting air from the system to ensure that the system is in a vacuum state. After the high-temperature steam is introduced into the regenerator 3, the heat is transferred to the lithium bromide solution and condensed into high-temperature water, and the high-temperature water passes through the heat recoverer 6, transfers the heat to a small part of the warm water entering the heat recoverer 6 and is discharged. And a small part of warm water entering the unit enters the heat recovery device 6 to realize temperature rise, most of the warm water enters the absorber 2 to obtain the heat of a lithium bromide solution absorbing refrigerant water of the evaporator 1, then enters the condenser 4 through a pipeline, obtains the heat of refrigerant steam evaporated in the regenerator 3 in the condenser 4, raises the temperature again, joins with the small part of warm water entering the heat recovery device 6 after the temperature rise, and is discharged out of the unit together to be provided for a user together, so that finally required high-temperature hot water is obtained. In consideration of the air tightness of the dead steam, the unit pipelines are connected in a welding mode as much as possible, and the sealing flange is also used for ensuring the air tightness in occasions using the flange. And because the flow velocity of the dead steam is faster, the arrangement of the tube group is convenient by adopting a mode that the evaporator 1 and the absorber 2 are separately arranged, which is different from the traditional heat pump.
The utility model provides an exhaust steam waste heat recovery type absorption heat pump unit is applicable to single-effect type, unipolar type, single-section type heat pump set, still is applicable to the heat pump set of multiple-effect type, multipolar type, multisection type.
The utility model provides a steam exhaust waste heat recovery type absorption heat pump unit furthest's the heat of having retrieved the steam exhaust to having made the particularity of solving the steam exhaust with the different design of a kind of heat pump institute of tradition, finally providing high temperature hot water for the customer, realized the thermal recycling of steam exhaust, thereby improve the utilization ratio of the energy, realized energy saving and emission reduction.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (6)
1. An exhaust steam waste heat recovery type absorption heat pump unit is characterized by comprising the following components: comprises an evaporator (1), an absorber (2), a regenerator (3), a condenser (4), a heat exchanger (5), a heat recoverer (6), a refrigerant pump (7), a dilute solution pump (8), a concentrated solution pump (9) and a dead steam condensation water tank (11); wherein the absorber (2), the dilute solution pump (8), the heat exchanger (5), the regenerator (3), the concentrated solution pump (9) and the absorber (2) are sequentially connected to form a circulating mechanism, the evaporator (1) is connected with the absorber (2), and the condenser (4) is respectively connected with the evaporator (1) and the absorber (2); the evaporator (1) is connected with a dead steam condensation water tank (11), and the absorber (2) is connected with the heat recoverer (6) in parallel through a pipeline; the evaporator (1) and the absorber (2) are separately arranged in two boxes and are connected through the boxes.
2. The absorption heat pump unit according to claim 1, wherein the condenser (4) is connected to the warm water outlet (16) through a pipeline; the regenerator (3) is connected with a steam inlet (18) through a pipeline; the condenser (4) and the heat recoverer (6) are respectively connected with a warm water outlet (16); the regenerator (3), the heat recoverer (6) and the steam condensate outlet (19) are sequentially connected; the absorber (2) and the heat recoverer (6) are respectively connected with a warm water inlet (17); the evaporator (1) is connected with a dead steam inlet (14).
3. The absorption heat pump unit according to claim 2, wherein the exhaust steam condensate tank (11) is connected to the exhaust steam condensate outlet (15) through an exhaust steam condensate pump (10).
4. The absorption heat pump unit according to claim 2, wherein the steam exhaust and waste heat recovery water tank (11) is disposed at the end of the external steam exhaust system.
5. The absorption heat pump unit according to claim 4, wherein the exhaust steam condensate tank (11) is provided with a liquid level electrode (12) and a system extraction pipeline (13).
6. An absorption heat pump unit according to any one of claims 1-5, wherein the absorption heat pump unit is suitable for single-effect, single-pole, single-stage heat pump units, and multi-effect, multi-pole, multi-stage heat pump units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020361122.4U CN212179217U (en) | 2020-03-20 | 2020-03-20 | Exhaust steam waste heat recovery type absorption heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020361122.4U CN212179217U (en) | 2020-03-20 | 2020-03-20 | Exhaust steam waste heat recovery type absorption heat pump unit |
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| CN212179217U true CN212179217U (en) | 2020-12-18 |
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| CN202020361122.4U Active CN212179217U (en) | 2020-03-20 | 2020-03-20 | Exhaust steam waste heat recovery type absorption heat pump unit |
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- 2020-03-20 CN CN202020361122.4U patent/CN212179217U/en active Active
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