Waste heat cooling heat pump unit

Abstract

The utility model discloses a waste heat cooling heat pump unit, and relates to the technical field of chemical waste heat recovery. The evaporator is mounted on the base assembly; the condenser is installed on the base assembly, and the condenser and the evaporator are arranged in a spaced mode; the compressor is installed at the top of the condenser, and the compressor communicates with the evaporator and the condenser; and the liquid supply pipeline is mounted at the bottom of the evaporator, and the liquid supply pipeline is communicated with the condenser. The chemical waste heat treatment device solves the technical problems that existing chemical waste heat treatment efficiency is low, and maintenance is not facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical waste heat recovery, in particular to a waste heat cooling heat pump unit. Background Art

[0002] The waste gas from chemical plants usually contains pollutants. There are many types of pollutants, and their chemical and physical properties are complex and their toxic and side effects are large, which will have a great impact on the physical and mental health of the public and the environment. For example, the concentration of VOCs in the waste gas discharged from petrochemical enterprises is relatively high, and methods such as condensation, absorption, and combustion are usually used for the purification treatment of waste gas. The existing waste heat recovery usually uses a water-water heat exchanger, but the heat exchange efficiency is relatively low and it is not conducive to maintenance. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a waste heat cooling heat pump unit, which solves the technical problems of low efficiency in chemical waste heat treatment and inconvenience in maintenance in the prior art.

[0004] The embodiment of the present application discloses a waste heat cooling heat pump unit, including:

[0005] A base assembly;

[0006] An evaporator, installed on the base assembly;

[0007] A condenser, installed on the base assembly, and the condenser is arranged at an interval from the evaporator;

[0008] A compressor, installed on the top of the condenser, and the compressor is respectively communicated with the evaporator and the condenser;

[0009] A liquid supply pipeline, installed at the bottom of the evaporator, and the liquid supply pipeline is communicated with the condenser;

[0010] The evaporator includes:

[0011] A cylinder body, with a containing cavity arranged inside the cylinder body;

[0012] An outlet water cavity, installed at one end of the containing cavity;

[0013] A heat exchange tube assembly, installed inside the containing cavity, and the liquid outlet end of the heat exchange tube assembly extends into the outlet water cavity;

[0014] An outlet water pipeline, installed at the bottom of the cylinder body, and the outlet water pipeline is communicated with the outlet water cavity.

[0015] The present application is provided with an evaporator, a condenser and a compressor, which can form a refrigerant cycle and can efficiently complete heat recovery at the same time.

[0016] Based on the above technical solutions, the embodiments of the present application can also be improved as follows:

[0017] Further, the heat exchange tube assembly includes:

[0018] At least two tube sheet of tube box, which are respectively installed at both ends of the accommodating cavity. One of the tube sheet of tube box and the water outlet cavity are located at the same end of the accommodating cavity, and the tube sheet of tube box is connected to the inner side of the water outlet cavity; the other tube sheet of tube box is located at the other end of the accommodating cavity;

[0019] Multiple heat exchange tubes are installed on the tube sheet of tube box at intervals, and the liquid outlet end of the heat exchange tube extends into the interior of the water outlet cavity. The liquid inlet end and the liquid outlet end of the heat exchange tube are located at the same end of the accommodating cavity. The beneficial effect of this step is to carry out heat exchange through the heat exchange tube, and at the same time, the inlet and outlet are at the same end, which is convenient for maintenance.

[0020] Further, a plurality of tube racks are installed at intervals along the axial direction of the accommodating cavity, and the heat exchange tubes are installed on the tube racks. The beneficial effect of this step is that the stable assembly of the heat exchange tubes can be ensured through the tube racks.

[0021] Further, a liquid distribution plate extending axially is arranged at the bottom of the accommodating cavity, and the liquid distribution plate cooperates with the liquid supply pipeline. The beneficial effect of this step is to reduce the flow rate and ensure the heat exchange efficiency.

[0022] Further, the water outlet cavity includes:

[0023] A first water outlet baffle, which is horizontally installed outside the tube sheet of tube box;

[0024] A second water outlet baffle, which is vertically installed at the end of the first water outlet baffle, and the second water outlet baffle, the first water outlet baffle, the tube sheet of tube box connected to them, and the accommodating cavity form the water outlet cavity together. The beneficial effect of this step is that the water outlet cavity is formed through the cooperation of the two water outlet baffles, which is convenient for collection and subsequent treatment.

[0025] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0026] 1. The present application is provided with components such as an evaporator, a condenser, and a compressor, which cooperate with each other to realize the recycling of the refrigerant and at the same time can efficiently recover waste heat.

[0027] 2. The present application designs the evaporator, and the liquid inlet end and the liquid outlet end are at one end, which is convenient for the recovery and subsequent treatment of the waste liquid, and is also convenient for subsequent maintenance. Description of the Drawings

[0028] To more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 Structural schematic diagram of a waste heat cooling heat pump unit according to a specific embodiment of the present utility model;

[0030] Figure 2 For Figure 1 Specific structure of the evaporator in

[0031] Figure 3 For Figure 2 Structural schematic diagram of the evaporator after removing the cylinder body in

[0032] Figure 4 For Figure 3 Structural schematic diagram of the evaporator after removing the heat exchange tubes in

[0033] 1 - Base assembly; 2 - Evaporator; 3 - Condenser; 4 - Compressor; 5 - Liquid supply pipeline; 6 - Liquid storage cylinder body;

[0034] 201 - Cylinder body; 202 - Accommodating cavity; 203 - Water outlet cavity; 204 - Heat exchange tube assembly; 205 - Water outlet pipeline; 206 - Tube sheet of the tube box; 207 - Heat exchange tube; 208 - Tube rack; 209 - Liquid distribution plate; 210 - First water outlet baffle; 211 - Second water outlet baffle. Specific embodiments

[0035] The following will describe in detail the embodiments of the technical solutions of the present utility model with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0036] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meanings understood by those skilled in the art to which the present utility model belongs.

[0037] In this application, unless otherwise clearly defined and limited, terms such as "installation", "connection", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0038] To better understand the above technical solutions, the following will describe the above technical solutions in detail in conjunction with the specification drawings and specific embodiments.

[0039] Embodiment:

[0040] As Figures 1-4 shown, this application discloses a waste heat cooling heat pump unit, which is used to recover the heat of high-temperature chemical waste liquid or waste gas, and at the same time can form a closed loop, so as to realize the recycling of the refrigerant.

[0041] The specific structure of this application includes:

[0042] Base assembly 1, which is made of multiple channel steels to form a square support frame; at the same time, in order to install the remaining components, a support frame is also provided on the base assembly 1, and this support frame is used to assemble the remaining other components;

[0043] Evaporator 2, installed on the base assembly 1, and this evaporator 2 is used to absorb the heat of chemical waste gas and waste liquid to complete heat recovery;

[0044] Condenser 3, installed on the base assembly 1, and the condenser 3 is arranged at an interval from the evaporator 2. This condenser 3 is used to complete the cooling of the refrigerant, so that it circulates to the evaporator and absorbs heat again to achieve recycling;

[0045] Compressor 4, installed on the top of the condenser 3, and the compressor 4 is respectively connected to the evaporator 2 and the condenser 3. This compressor 4 is used to compress the gas in the evaporator 2 to make it into a high-temperature and high-pressure gas and send it into the condenser 3 for condensation;

[0046] Liquid supply pipeline 5, installed at the bottom of the evaporator 2, and the liquid supply pipeline 5 is connected to the condenser 3 to form a cycle of the refrigerant;

[0047] The evaporator 2 includes:

[0048] Cylinder body 201, and an accommodation cavity 202 is arranged inside the cylinder body 201. This accommodation cavity 202 is a heat exchange cavity, which is used to assemble heat exchange pipes and cooperate with the refrigerant for heat exchange;

[0049] The water outlet cavity 203 is installed at one end of the accommodation cavity 202 and is used to discharge the cooled industrial wastewater.

[0050] The heat exchange tube assembly 204 is installed inside the accommodation cavity 202, and the liquid outlet end of the heat exchange tube assembly 204 extends into the water outlet cavity 203.

[0051] The water outlet pipe 205 is installed at the bottom of the cylinder body 201, and the water outlet pipe 205 communicates with the water outlet cavity 203. In this application, the evaporator 2 is designed with a water outlet cavity assembled inside it to complete the water outlet of industrial waste gas, facilitating collection.

[0052] Specifically, as Figures 3-4 shown, the heat exchange tube assembly 204 includes:

[0053] At least two tube sheet of tube box 206 are respectively installed at both ends of the accommodation cavity 202. One of the tube sheet of tube box 206 and the water outlet cavity 203 are located at the same end of the accommodation cavity 202, and the tube sheet of tube box 206 is connected to the inner side of the water outlet cavity 203; the other tube sheet of tube box 206 is located at the other end of the accommodation cavity 202.

[0054] Multiple heat exchange tubes 207 are installed on the tube sheet of tube box 206 at intervals, and the liquid outlet end of the heat exchange tube 207 extends into the water outlet cavity 203. The liquid inlet end and the liquid outlet end of the heat exchange tube 207 are located at the same end of the accommodation cavity 202.

[0055] In this application, preferably two tube sheet of tube box 206 are provided, one is located at the right end of the accommodation cavity 202, and the other is located at the left end of the accommodation cavity 202. Taking the attached drawing as an example, the right end is the liquid inlet and outlet end, that is, the waste gas and waste liquid enter from the upper heat exchange tube 207, then form liquid and flow out from the lower liquid outlet pipe into the water outlet cavity 203, and then flow out from the bottom water outlet pipe 205.

[0056] Specifically, multiple tube racks 208 are installed at intervals along the axial direction of the accommodation cavity 202 in this application, and the heat exchange tubes 207 are installed on the tube racks 208; multiple through holes are provided at intervals on the tube racks 208 in this application for assembling the corresponding heat exchange tubes 207 to form stable heat exchange.

[0057] In one embodiment, as Figure 3As shown, a liquid distribution plate 209 extending axially is provided at the bottom of the accommodation cavity 202. The liquid distribution plate 209 cooperates with the liquid supply pipe 5, so that the liquid refrigerant of the evaporator can be evenly distributed at the bottom of the evaporator, slowing down the flow rate. Specifically, the longitudinal section of the liquid distribution plate 209 is triangular, and a plurality of through holes are formed on both of its side surfaces.

[0058] Among them, the water outlet cavity 203 includes:

[0059] A first water outlet baffle 210, which is horizontally installed on the outer side of the tube sheet 206 of the tube box;

[0060] A second water outlet baffle 211, which is vertically installed at the end of the first water outlet baffle 210, and the second water outlet baffle 211, the first water outlet baffle 210, and the tube sheet 206 of the tube box and the accommodation cavity 202 connected thereto form the water outlet cavity 203 together. The water outlet cavity 203 of the present application has a semi-cylindrical structure, and its bottom is communicated with the water outlet pipe 205, which is convenient for water outlet.

[0061] The present application is also provided with a liquid storage cylinder 6, which is installed on the liquid supply pipe 5 to achieve the effect of subsequent refrigerant supplement.

[0062] The present application is a device for recovering heat from industrial waste gas and waste liquid. When in use, the liquid inlet end of the heat exchange tube 207 is introduced with industrial waste gas and waste liquid, and after heat exchange through the refrigerant inside the evaporator 2, it forms a liquid and enters the water outlet cavity 203, and then it is convenient to collect; while the refrigerant is compressed by the compressor 4, and after heat exchange through the condenser, it forms a liquid refrigerant, which is sent into the liquid storage cylinder 6, and finally enters the evaporator 2 to form a cycle.

[0063] In the description of the present utility model, a large number of specific details are illustrated. However, it can be understood that the embodiments of the present utility model can be practiced without these specific details. In some instances, well-known methods, structures, and technologies are not shown in detail so as not to obscure the understanding of this specification.

[0064] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and the description of the present invention.

Claims

1. A waste heat cooling heat pump unit, characterized in that: include: Base assembly; an evaporator, mounted on the base assembly; A condenser is mounted on the base assembly, and the condenser is spaced apart from the evaporator; A compressor is installed on the top of the condenser, and the compressor is communicated with the evaporator and the condenser respectively; A liquid supply pipeline is installed at the bottom of the evaporator, and the liquid supply pipeline is connected to the condenser; The evaporator comprises: A cylinder, wherein a receiving cavity is provided inside the cylinder; A water outlet cavity, installed at one end of the accommodating cavity; A heat exchange tube assembly is installed inside the accommodating cavity, and the liquid outlet end of the heat exchange tube assembly extends into the water outlet cavity; A water outlet pipe is installed at the bottom of the cylinder, and the water outlet pipe is communicated with the water outlet cavity.

2. The waste heat cooling heat pump unit according to claim 1, characterized in that: The heat exchange tube assembly comprises: At least two tube boxes and tube sheets are respectively installed at the two ends of the accommodating cavity, wherein one of the tube boxes and tube sheets and the water outlet cavity are located at the same end of the accommodating cavity, and the tube box and tube sheet are connected to the inner side of the water outlet cavity; the other tube box and tube sheet is located at the other end of the accommodating cavity; A plurality of heat exchange tubes are installed at intervals on the tube box and tube sheet, and the liquid outlet ends of the heat exchange tubes extend into the water outlet cavity, and the liquid inlet end and the liquid outlet end of the heat exchange tubes are located at the same end of the accommodating cavity.

3. The waste heat cooling heat pump unit according to claim 2, characterized in that: The accommodating cavity is provided with a plurality of tube racks spaced apart along the axial direction thereof, and the heat exchange tubes are installed on the tube racks.

4. The waste heat cooling heat pump unit according to claim 3, characterized in that: The bottom of the accommodating cavity is provided with an axially extending liquid balancing plate, and the liquid balancing plate cooperates with the liquid supply pipeline.

5. The waste heat cooling heat pump unit according to claim 2, characterized in that: The water outlet chamber comprises: A first water outlet baffle is transversely mounted on the outer side of the tube box tube sheet; The second water outlet baffle is vertically installed at the end of the first water outlet baffle, and the second water outlet baffle, the first water outlet baffle, the tube box tube plate connected thereto, and the accommodating cavity are combined to form the water outlet cavity.

Images