Double-effect energy-saving potassium bromide absorption water chilling unit

Abstract

The utility model discloses a double-effect energy-saving potassium bromide absorption type water chilling unit which comprises a water chilling unit body, the water chilling unit body is composed of a first-stage heat exchanger and a second-stage generator, a single-effect generator is fixedly installed on the top of the second-stage generator, and a water inlet pipe and a switching valve are arranged on one side of the water chilling unit body. When the switching valve communicates with the second connecting pipe, the working mode of the water chilling unit body and the single-effect generator is a parallel unit operation mode, and when the switching valve and one end of the second connecting pipe are closed, the working mode of the water chilling unit body is a single-effect unit operation mode. The water chilling unit body, the protection box body, the single-effect generator and the switching valve are used in a matched mode, so that when the water chilling unit body works in a loaded mode, the switching valve is communicated with the single-effect generator, the single-effect generator and the water chilling unit body work in parallel, and when the water chilling unit body works normally, the switching valve is communicated with the single-effect generator. And when the joint of the switching valve and the single-effect generator is closed, the single-effect generator stops working.

Description

Technical Field

[0001] The utility model relates to the field of chillers, in particular to a double-effect energy-saving potassium bromide absorption chiller. Background Art

[0002] In production processes or life, refrigeration is needed, which requires a certain amount of energy to achieve. At the same time, there is a large amount of medium and low temperature waste heat in the production process. Some waste heat is discharged because it cannot be used, resulting in waste. In order to save energy and reduce emissions, refrigeration technology is now used to recycle this part of the waste heat to achieve the purpose of refrigeration.

[0003] When using an absorption chiller for work, it is usually installed directly at a designated location using a fixing base for work. When the chiller is working under load, its cooling effect will be reduced. In order to improve the cooling efficiency of the chiller, a single-effect generator will be added to the chiller to work synchronously with the chiller. However, when the chiller is working normally, the added single-effect generator will increase its energy consumption, which makes it inconvenient to enable the single-effect generator when the chiller is working under load, and the single-effect generator will stop working when the chiller is working normally. Utility Model Content

[0004] The utility model aims to provide a double-effect energy-saving potassium bromide absorption chiller to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-effect energy-saving potassium bromide absorption chiller, comprising a chiller body, the chiller body consisting of a primary heat exchanger and a secondary generator, a single-effect generator fixedly installed on the top of the secondary generator, a water inlet pipe and a switching valve arranged on one side of the chiller body, one end of each of the primary heat exchanger and the secondary generator fixedly connected with a first connecting pipe, an end of the single-effect generator fixedly connected with a second connecting pipe, the first connecting pipe and the second connecting pipe fixedly connected with the water inlet pipe through the switching valve, when the switching valve is connected with the second connecting pipe, the working mode of the chiller body and the single-effect generator is a parallel unit operation mode, when the switching valve and one end of the second connecting pipe are closed, the working mode of the chiller body is a single-effect unit operation mode;

[0006] A protective box is fixedly sleeved on the outer wall of the chiller body, a maintenance window is opened on the side of the protective box, a side panel cover is slidably sleeved on the inner cavity of the maintenance window, and a locking component is arranged on the outside of the protective box to fix the sliding installation direction of the side panel cover.

[0007] Preferably, the locking assembly comprises: a locking member, a locking member body and a positioning rod. The locking member is fixedly connected to the outside of the protective box body, the locking member body is fixedly connected to the front of the side plate cover, the outer wall of the locking member body is slidably engaged with the locking member in the direction in which the side plate cover is slidably engaged with the protective box body, the positioning rod is slidably arranged inside the locking member body in a direction perpendicular to the slidable connection between the side plate cover and the protective box body, and the positioning rod is slidably engaged with the locking member.

[0008] Preferably, the inner wall of the locking piece is provided with a slot matching the positioning rod, the locking piece body is provided with an installation slot on one side close to the locking piece, the interior of the installation slot is slidingly sleeved with a limit spring, the outer wall of the positioning rod is slidingly sleeved with the limit spring, one end of the positioning rod passes through the locking piece body and is fixedly connected with a pull ring, one end of the inner cavity of the installation slot is fixedly sleeved with a sealing ring, the outer wall of the positioning rod is slidingly sleeved with the sealing ring, the outer wall of the positioning rod is fixedly sleeved with a fixing ring, the fixing ring is slidingly sleeved in the inner cavity of the installation slot, the limit spring is located on the side of the fixing ring away from the sealing ring, the inner wall of the installation slot is fixedly connected with a block, the outer wall of the fixing ring is provided with a slot, and the outer wall of the block corresponds to the inner cavity of the slot.

[0009] Preferably, an observation window is provided on the front side of the side panel cover, a transparent plate is fixedly sleeved inside the observation window, and a handle is symmetrically fixedly connected to the front side of the side panel cover.

[0010] Technical effects and advantages of the utility model:

[0011] The utility model utilizes the coordinated use of a chiller body, a protective box, a single-effect generator and a switching valve. Under the action of the switching valve, the single-effect generator and the chiller body form a parallel mode. Therefore, when the chiller body is working under load, the switching valve is connected to the single-effect generator, thereby making the single-effect generator and the chiller body work in parallel. When the chiller body is working normally, the connection between the switching valve and the single-effect generator is closed, and the single-effect generator stops working. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 This is a schematic diagram of the internal structure of the front side of the protective box body of the utility model.

[0014] Figure 3 This is a schematic diagram of the overall structure of the lock body of the utility model.

[0015] Figure 4 This is a schematic diagram of the internal structure of the front side of the lock body of the utility model.

[0016] In the figure: 1. Chiller body; 11. Water inlet pipe; 12. First connecting pipe; 13. Single-effect generator; 14. Second connecting pipe; 15. Switching valve; 2. Protective box; 3. Side panel cover; 4. Locking assembly; 41. Locking piece; 42. Locking piece body; 43. Positioning rod; 44. Limiting spring; 45. Pull ring; 46. Mounting groove; 47. Sealing ring; 48. Fixing ring; 49. Block; 410. Slot; 5. Transparent plate; 6. Handle. DETAILED DESCRIPTION

[0017] 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 in 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.

[0018] The utility model provides Figure 1-4 The double-effect energy-saving potassium bromide absorption chiller shown in the figure includes a chiller body 1, which is composed of a primary heat exchanger and a secondary generator. A single-effect generator 13 is fixedly installed on the top of the secondary generator. The working principle of the single-effect generator 13 is based on the evaporative cooling effect. The working fluid enters from the high-temperature end of the evaporator and evaporates the working fluid through heat exchange with cooling water or cooling air, thereby absorbing heat. During the evaporation process, the temperature of the working fluid decreases, thereby achieving the cooling effect of the cooling water or cooling air. A water inlet pipe 11 and a switching valve 15 are provided on one side of the chiller body 1. One end of the primary heat exchanger and the secondary generator are fixedly connected to a first connecting pipe 12, and the end of the single-effect generator 13 is fixedly connected to a second connecting pipe 14. The first connecting pipe 12 and the second connecting pipe 14 are both The switching valve 15 is fixedly connected to the water inlet pipe 11. When the switching valve 15 is connected to the second connecting pipe 14, the working mode of the chiller body 1 and the single-effect generator 13 is a parallel unit operation mode, that is, the chiller body 1 and the single-effect generator 13 synchronously cool the water flow entering the water inlet pipe 11 to reduce the load of the chiller body 1. When the switching valve 15 and one end of the second connecting pipe 14 are closed, the working mode of the chiller body 1 is a single-effect unit operation mode, that is, when the chiller body 1 is working normally, the single-effect generator 13 does not work, and only the chiller body 1 works, thereby reducing energy consumption. The switching valve 15 is installed in the switching switch valve, and the connecting rod structure principle is used to realize the opening and closing of the valve plate. Therefore, when the connecting rod drives the valve plate to rotate, the connection or closing of the second connecting pipe 14 and the water inlet pipe 11 can be controlled.

[0019] The hood 2 is provided with a protective cover 3 for protecting the main body 1 of the water chiller. The hood 2 is provided with a protective cover 3 for protecting the main body 1 of the water chiller. A maintenance window is provided on the side of the protective cover 2. The inner cavity of the maintenance window is slidably covered with a side panel cover 3. An observation window is provided on the front of the side panel cover 3. A transparent plate 5 is fixedly covered on the inside of the observation window. The state of the water chiller main body 1 inside the protective cover 2 can be observed through the transparent plate 5. When the water chiller main body 1 fails, the side panel cover 3 can be removed to maintain the water chiller main body 1 inside the protective cover 2. The front of the side panel cover 3 is symmetrically fixed with a handle 6. The outside of the protective cover 2 is provided with a locking assembly 4 for fixing the sliding installation direction of the side panel cover 3. The side panel covers 3 are provided on both sides of the protective cover 2. When the locking state of the locking assembly 4 is released, the side panel cover 3 can be directly pulled apart from the protective cover 2 by the handle 6.

[0020] Furthermore, the locking assembly 4 includes a locking piece 41, a locking piece body 42 and a positioning rod 43. The locking piece 41 is fixedly connected to the outside of the protective box body 2, the locking piece body 42 is fixedly connected to the front of the side panel cover 3, and the outer wall of the locking piece body 42 is slidably engaged with the locking piece 41 in the direction of the sliding connection between the side panel cover 3 and the protective box body 2. The front view of the locking piece 41 is C-shaped, that is, one end of the locking piece body 42 is slidably engaged with the inside of the recess, and the positioning rod 43 is slidably arranged in the inside of the locking piece body 42 in a vertical direction of the sliding connection with the side panel cover 3 and the protective box body 2. The positioning rod 43 is slidably engaged with the locking piece 41, so that when the locking piece body 42 is engaged with the inside of the locking piece 41 and the positioning rod 43 is engaged with the locking piece 41, the locking piece body 42 and the locking piece 41 can be in a stable engaged state, thereby locking the side panel cover 3 to ensure the stability of the installation of the side panel cover 3.

[0021] Furthermore, the inner wall of the locking member 41 is provided with a slot matching the positioning rod 43, and the side of the locking member body 42 close to the locking member 41 is provided with a mounting slot 46, the inner part of the mounting slot 46 is slidably sleeved with the limiting spring 44, and the outer wall of the positioning rod 43 is slidably sleeved with the limiting spring 44, and the limiting spring 44 can give the positioning rod 43 an elastic force toward the locking member 41 through the fixing ring 48, so that one end of the outer wall of the positioning rod 43 maintains a stable clamping state with the slot on the locking member 41, and one end of the positioning rod 43 passes through the locking member body 4 The pull ring 45 is fixedly connected to the positioning rod 43 and the locking member 41, so as to release the clamping state between the locking member body 42 and the locking member 41, so as to disassemble the side plate cover 3. A sealing ring 47 is fixedly sleeved at one end of the inner cavity of the installation groove 46, and the outer wall of the positioning rod 43 is slidably sleeved with the sealing ring 47. A fixing ring 48 is fixedly sleeved on the outer wall of the positioning rod 43, and the fixing ring 48 is slidably sleeved in the inner cavity of the installation groove 46. The limiting spring 44 is located on the side of the fixing ring 48 away from the sealing ring 47.

[0022] In particular, a clamping block 49 is fixedly connected to the inner wall of the mounting groove 46, and a groove 410 is provided on the outer wall of the fixing ring 48. The outer wall of the clamping block 49 corresponds to the inner cavity of the groove 410. Since there are multiple locking components 4 between the side plate cover 3 and the protective box body 2, after the pull ring 45 drives the positioning rod 43 to separate from the locking piece 41, the positioning rod 43 can drive the fixing ring 48 to move, so that the fixing ring 48 passes through the clamping block 49 under the action of its external groove 410, and then the pull ring 45 is used to drive the positioning rod 43 and the fixing ring 48 to rotate, so that the groove 410 on the fixing ring 48 is misaligned with the clamping block 49, so that the clamping block 49 can clamp and limit the fixing ring 48, avoiding the positioning rod 43 from resetting under the action of the limit spring 44, so that the positioning rod 43 is in a stable state and separated from the locking piece 41, so as to facilitate the unlocking of multiple positioning rods 43, thereby facilitating the installation or removal of the side plate cover 3.

[0023] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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 double-effect energy-saving potassium bromide absorption chiller, comprising a chiller body (1), wherein the chiller body (1) is composed of a primary heat exchanger and a secondary generator; characterized in that: A single-effect generator (13) is fixedly installed on the top of the secondary generator, a water inlet pipe (11) and a switching valve (15) are provided on one side of the chiller body (1), one end of each of the primary heat exchanger and the secondary generator is fixedly connected to a first connecting pipe (12), an end of the single-effect generator (13) is fixedly connected to a second connecting pipe (14), and both the first connecting pipe (12) and the second connecting pipe (14) are fixedly connected to the water inlet pipe (11) via the switching valve (15); The outer wall of the chiller body (1) is fixedly sleeved with a protective box body (2), a maintenance window is provided on the side of the protective box body (2), a side panel cover (3) is slidably sleeved in the inner cavity of the maintenance window, and a locking component (4) is provided on the outside of the protective box body (2) for fixing the sliding installation direction of the side panel cover (3).

2. The double-effect energy-saving potassium bromide absorption chiller according to claim 1, characterized in that: The locking assembly (4) comprises: a locking piece (41), a locking piece body (42) and a positioning rod (43); the locking piece (41) is fixedly connected to the outside of the protective box (2); the locking piece body (42) is fixedly connected to the front of the side plate cover (3); the outer wall of the locking piece body (42) is slidably engaged with the locking piece (41) in the direction of the sliding connection between the side plate cover (3) and the protective box (2); the positioning rod (43) is slidably arranged inside the locking piece body (42) in a direction perpendicular to the sliding connection between the side plate cover (3) and the protective box (2); the positioning rod (43) is slidably engaged with the locking piece (41).

3. The double-effect energy-saving potassium bromide absorption chiller according to claim 2 is characterized in that: The inner wall of the locking member (41) is provided with a slot matching the positioning rod (43); the locking member body (42) is provided with a mounting slot (46) on one side close to the locking member (41); the interior of the mounting slot (46) is slidably sleeved with a limit spring (44); the outer wall of the positioning rod (43) is slidably sleeved with the limit spring (44); one end of the positioning rod (43) passes through the locking member body (42) and is fixedly connected with a pull ring (45); one end of the inner cavity of the mounting slot (46) is fixedly sleeved with a sealing ring (47); the outer wall of the positioning rod (43) is slidably sleeved with the sealing ring (47); the outer wall of the positioning rod (43) is fixedly sleeved with a fixing ring (48); the fixing ring (48) is slidably sleeved in the inner cavity of the mounting slot (46); and the limit spring (44) is located on the side of the fixing ring (48) facing away from the sealing ring (47).

4. The double-effect energy-saving potassium bromide absorption chiller according to claim 3 is characterized in that: A clamping block (49) is fixedly connected to the inner wall of the installation groove (46), a slot (410) is provided on the outer wall of the fixing ring (48), and the outer wall of the clamping block (49) corresponds to the inner cavity of the slot (410).

5. The double-effect energy-saving potassium bromide absorption chiller according to claim 1 is characterized in that: An observation window is provided on the front of the side plate cover (3), a transparent plate (5) is fixedly sleeved inside the observation window, and a handle (6) is symmetrically fixedly connected to the front of the side plate cover (3).

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