Lithium bromide direct-fired machine with waste heat recovery structure

Abstract

The utility model provides a lithium bromide direct-fired machine with a waste heat recovery structure, which comprises a lithium bromide direct-fired machine main body, a waste heat recovery mechanism and a primary filter part, and a direct-fired machine box body is arranged in the middle of the internal composition of the lithium bromide direct-fired machine main body. Compared with the prior art, the lithium bromide direct-fired machine has the advantages that the lithium bromide direct-fired machine body and the waste heat recovery mechanism are additionally arranged, external cooling water is guided into the cooling water tank through the guide-in pipe and guided into the direct-fired machine box body through the transition pipe for cooling operation at a proper time, and the cooled and heated cooling water is guided out through the lower guide pipe to enter the waste heat recovery mechanism. Cooling water enters the water tank for temporary storage, the cooling time of the cooling water can be prolonged under the action of the heat preservation outer layer and the heat preservation plate, the cooling water can be led out through the outer guide pipe for waste heat utilization when needed, the waste heat recycling effect can be achieved, and cooling water can be filtered by additionally arranging the lithium bromide direct-fired machine body, the waste heat recycling mechanism and the primary filtering piece.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium bromide direct-fired engines, in particular to a lithium bromide direct-fired engine with a waste heat recovery structure. Background Art

[0002] Lithium bromide direct-fired machine is an absorption refrigeration equipment that uses lithium bromide as absorbent and water as refrigerant. It can directly burn natural gas, oil and other fuels to heat lithium bromide solution, thereby producing a refrigeration effect, and can also provide domestic hot water. Most common lithium bromide direct-fired machines import cooling water for cooling operations, and then export the cooling water that has heated up after absorbing heat for cooling, and perform circulation operations in sequence. However, the heat energy of the cooling water that has heated up after absorbing heat cannot be used, and will be naturally dissipated during the cooling period, resulting in a waste of heat energy, which is not conducive to maximizing the reduction of production costs and improving the cost competitiveness of the enterprise itself.

[0003] Secondly, waste heat recovery can be used to heat water or generate steam, thus providing additional thermal energy to the building, such as heating or domestic hot water supply. Without this function, a possible source of income or cost saving point is lost, increasing the overall operating cost.

[0004] In addition, modern construction and industrial production are increasingly focusing on sustainability and energy efficiency. Lithium bromide direct-fired engines that lack waste heat recovery may not meet green building standards or relevant energy efficiency regulations, limiting their competitiveness and scope of application in the market.

[0005] In summary, there are some problems in the use of lithium bromide direct-fired engines that cannot recover waste heat, so it is hoped to propose a new structure to solve the above technical problems. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a lithium bromide direct-fired engine with a waste heat recovery structure to solve the problems raised in the above-mentioned background technology.

[0007] The utility model is realized through the following technical scheme: a lithium bromide direct-fired engine with a waste heat recovery structure, comprising: a lithium bromide direct-fired engine main body, a waste heat recovery mechanism and a primary filter element, wherein a direct-fired engine casing is provided at a middle position in the internal composition of the lithium bromide direct-fired engine main body, a lower conduit for guiding out cooling water is provided at the lower right side of the direct-fired engine casing, a lower flange plate 1 is provided below the lower conduit, a primary filter element for initially filtering the guided cooling water is provided below the lower flange plate 1, a waste heat recovery mechanism for recovering the guided cooling water is provided below the primary filter element, a water tank for temporarily storing the guided cooling water is provided at the lower right end of the internal composition of the waste heat recovery mechanism, and an outer conduit for utilizing the guided cooling water is provided at the right side of the water tank.

[0008] As a preferred embodiment, a lower flange plate 2 is provided at the upper left end of the internal components of the waste heat recovery mechanism, and a telescopic hose for adjusting the position of the lower flange plate 2 is provided below the lower flange plate 2.

[0009] As a preferred embodiment, a water pipe is provided below the telescopic hose, and an insulating outer layer is provided on the outside of the water pipe for insulating the recovered cooling water. The insulating outer layer can insulate the cooling water during its flow and reduce its heat loss.

[0010] As a preferred embodiment, a filter box for secondary filtration of the recovered cooling water is provided at the lower right side of the water pipe, and an insulation plate for keeping the recovered cooling water warm is provided on the inside of the filter box and the water tank. The insulation plate can keep the cooling water warm when passing through the filter box and the temporary water tank, thereby reducing its heat loss and making use of the waste heat energy of the cooling water.

[0011] As a preferred embodiment, an upper duct for introducing external cooling water is provided at the upper right side of the direct-fired engine casing, a transition pipe is provided above the upper duct, a cooling water tank is provided above the transition pipe, and an introduction pipe is provided on the right side of the cooling water tank.

[0012] As a preferred embodiment, a group of flanges are provided at both ends of the primary filter element, the upper surface of the upper flange and the lower surface of the lower flange fit together and are fixed by bolts, and the lower surface of the lower flange and the upper surface of the lower flange fit together and are fixed by bolts.

[0013] As a preferred embodiment, two groups of filter plates for filtering are provided inside the filter box, the two groups of filter plates are arranged at intervals and a plurality of filter holes are opened on their upper surfaces, and the derived cooling water can be filtered through the primary filter element and the two groups of filter plates.

[0014] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: by adding a lithium bromide direct-fired engine main body and a waste heat recovery mechanism, external cooling water is introduced into the cooling water tank through an inlet pipe, and is introduced into the direct-fired engine casing through a transition pipe for cooling at an appropriate time. The cooling water after cooling and heating is discharged through a lower duct into the waste heat recovery mechanism and enters the water tank for temporary storage. The cooling time can be extended through the effect of the insulation outer layer and the insulation board, and the waste heat can be utilized through the outer duct when needed, thereby achieving the effect of waste heat recovery. By adding a lithium bromide direct-fired engine main body, a waste heat recovery mechanism and a primary filter, the cooling water can be filtered. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 The utility model is a schematic diagram of the overall structure of a lithium bromide direct-fired engine with a waste heat recovery structure.

[0017] Figure 2 The utility model is a schematic structural diagram of a lithium bromide direct-fired engine main body in a lithium bromide direct-fired engine with a waste heat recovery structure.

[0018] Figure 3 The utility model is a schematic structural diagram of a waste heat recovery mechanism in a lithium bromide direct-fired engine with a waste heat recovery structure.

[0019] Figure 4 It is a partial cross-sectional schematic diagram of a waste heat recovery mechanism in a lithium bromide direct-fired engine with a waste heat recovery structure according to the utility model.

[0020] In the figure, 100 is the main body of the lithium bromide direct-fired engine, 101 is the direct-fired engine housing, 102 is the lower conduit, 103 is the lower flange plate 1, 104 is the upper conduit, 105 is the cooling water tank, and 106 is the inlet pipe;

[0021] 200-waste heat recovery mechanism, 201-lower flange plate 2, 202-flexible hose, 203-water guide pipe, 204-insulation outer layer, 205-filter box, 206-filter plate, 207-insulation plate, 208-water tank, 209-external conduit;

[0022] 300-Primary filter element. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 4 The utility model provides a technical solution: a lithium bromide direct-fired engine with a waste heat recovery structure, comprising: a lithium bromide direct-fired engine body 100, a waste heat recovery mechanism 200 and a primary filter 300, wherein a direct-fired engine case 101 is provided in the middle position of the internal composition of the lithium bromide direct-fired engine body 100;

[0025] A downpipe 102 for guiding out cooling water is provided at the lower right side of the direct-fired engine housing 101, a downpipe 102 for conveniently connecting to a lower flange 103 is provided below the downpipe 102, and a primary filter 300 for initially filtering the guided cooling water is provided below the lower flange 103;

[0026] A waste heat recovery mechanism 200 for recovering the discharged cooling water is provided below the primary filter element 300. A water tank 208 for temporarily storing the discharged cooling water is provided at the lower right end of the internal structure of the waste heat recovery mechanism 200. An external duct 209 for utilizing the discharged cooling water is provided on the right side of the water tank 208.

[0027] The waste heat recovery mechanism 200 has a lower flange 201 at the upper left end thereof, and a telescopic hose 202 for adjusting the position of the lower flange 201 is provided below the lower flange 201 .

[0028] A water pipe 203 is provided below the telescopic hose 202 , and an insulating outer layer 204 for insulating the recovered cooling water is provided on the outer side of the water pipe 203 . The insulating outer layer 204 can be used to insulate the cooling water during its flow, thereby reducing its heat loss.

[0029] A filter box 205 for secondary filtration of the recovered cooling water is provided at the lower right side of the water pipe 203. An insulation plate 207 for keeping the recovered cooling water warm is provided on the inner side of the filter box 205 and the water tank 208. The insulation plate 207 can keep the cooling water warm when passing through the filter box 205 and the temporary water tank 208, thereby reducing its heat loss and making use of the waste heat energy of the cooling water.

[0030] An upper conduit 104 for introducing external cooling water is provided at the upper right side of the direct-fired engine housing 101 , a transition pipe is provided above the upper conduit 104 , a cooling water tank 105 is provided above the transition pipe, and an introduction pipe 106 is provided on the right side of the cooling water tank 105 .

[0031] See also Figure 1-Figure 4 As the first embodiment of the utility model: first, the user introduces external cooling water into the inner side of the cooling water tank 105 through the inlet pipe 106, and introduces it into the direct-fired engine case 101 through the transition pipe for cooling at an appropriate time. Secondly, after the cooling and heated cooling water loses its cooling effect, it is led out through the downpipe 102 into the waste heat recovery mechanism 200, and finally enters the water tank 208 for temporary storage. The heat loss can be reduced by the insulation outer layer 204 and the insulation board 207 to extend the cooling time. When the heated cooling water is needed, it is led out through the outer pipe 209 for waste heat utilization, thereby achieving the effect of waste heat recovery.

[0032] A set of flanges are provided at both ends of the primary filter element 300. The upper surface of the upper flange fits with the lower surface of the lower flange 103 and is fixed by bolts, and the lower surface of the lower flange fits with the upper surface of the lower flange 201 and is fixed by bolts.

[0033] Two groups of filter plates 206 for filtering are arranged inside the filter box 205. The two groups of filter plates 206 are arranged at intervals and have a plurality of filter holes on their upper surfaces. The derived cooling water can be filtered through the primary filter element 200 and the two groups of filter plates 206.

[0034] See also Figure 1-Figure 4 As the second embodiment of the utility model: Based on the above-mentioned first embodiment, the cooling water inside the direct-fired machine housing 101 will lose its cooling effect when it heats up and is discharged through the lower conduit 102. It first passes through the primary filter element 200 connected to the lower flange 103 and the lower flange 201 to complete the initial filtration, and then is introduced into the filter box 205 and then passes through two groups of filter plates 206 arranged at intervals for secondary filtration, thereby reducing the level of impurities contained in the cooling water.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lithium bromide direct-fired engine with a waste heat recovery structure, comprising: A lithium bromide direct-fired engine body (100), a waste heat recovery mechanism (200) and a primary filter element (300), characterized in that a direct-fired engine case (101) is provided in the middle of the internal components of the lithium bromide direct-fired engine body (100); A downpipe (102) for guiding out cooling water is provided at the lower right side of the direct-fired engine housing (101); a lower flange (103) for convenient connection is provided below the downpipe (102); a primary filter (300) for initially filtering the guided cooling water is provided below the lower flange (103); A waste heat recovery mechanism (200) for recovering the discharged cooling water is provided below the primary filter element (300); a water tank (208) for temporarily storing the discharged cooling water is provided at the lower right end of the internal structure of the waste heat recovery mechanism (200); an external conduit (209) for utilizing the discharged cooling water is provided on the right side of the water tank (208).

2. A lithium bromide direct-fired engine with a waste heat recovery structure as claimed in claim 1, characterized in that: The waste heat recovery mechanism (200) has a lower flange plate 2 (201) at the upper left end of its internal components, and a telescopic hose (202) for adjusting the position of the lower flange plate 2 (201) is provided below the lower flange plate 2 (201).

3. A lithium bromide direct-fired engine with a waste heat recovery structure as claimed in claim 2, characterized in that: A water conduit (203) is provided below the telescopic hose (202), and a heat-insulating outer layer (204) for keeping the recovered cooling water warm is provided on the outside of the water conduit (203).

4. A lithium bromide direct-fired engine with a waste heat recovery structure as claimed in claim 3, characterized in that: A filter box (205) for secondary filtering of the recovered cooling water is provided at the lower right side of the water pipe (203), and a heat preservation plate (207) for keeping the recovered cooling water warm is provided inside the filter box (205) and the water tank (208).

5. A lithium bromide direct-fired engine with a waste heat recovery structure as claimed in claim 4, characterized in that: An upper conduit (104) for introducing external cooling water is provided at the upper right side of the direct-fired engine housing (101), a transition pipe is provided above the upper conduit (104), a cooling water tank (105) is provided above the transition pipe, and an introduction pipe (106) is provided on the right side of the cooling water tank (105).

6. The lithium bromide direct-fired engine with a waste heat recovery structure as claimed in claim 2, characterized in that: The primary filter element (300) is provided with a set of flanges at both the upper and lower ends. The upper surface of the upper flange fits with the lower surface of the lower flange one (103) and is fixed by bolts. The lower surface of the lower flange fits with the upper surface of the lower flange two (201) and is fixed by bolts.

7. A lithium bromide direct-fired engine with a waste heat recovery structure as claimed in claim 4, characterized in that: Two groups of filter plates (206) for filtering are arranged inside the filter box (205), and the two groups of filter plates (206) are arranged at intervals and have a plurality of groups of filter holes on their upper surfaces.

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