A ground source heat pump unit cabinet

Abstract

The utility model discloses a kind of ground source heat pump unit machine cases, relating to ground source heat pump unit field.A kind of ground source heat pump unit machine case, including cabinet, the opening of the cabinet is rotatably connected with cabinet door, the lower end of the both sides of the cabinet is symmetrically provided with air inlet, the upper end of the both sides of the cabinet is symmetrically provided with exhaust port, the inside upper end of the cabinet is equipped with temperature monitor, further comprising: mounting shell, by bolt detachably connected at the air inlet of the cabinet;The utility model passes through setting pre-heat exchange pipe and secondary heat exchange pipe, let gas pass through twice refrigeration before entering cabinet, prolongs the contact time of gas and coolant, reduce the gas temperature of entering cabinet, compared with prior art, can more effectively take away the heat in machine case, significantly improve the heat dissipation effect to machine case internal equipment, guarantee the stable operation of ground source heat pump unit, reduce the equipment failure risk due to high temperature.

Description

Technical Field

[0001] This utility model belongs to the technical field of ground source heat pump units, specifically, it relates to a ground source heat pump unit chassis. Background Technology

[0002] Ground source heat pump units are widely used in building energy conservation and other fields as a high-efficiency heating and cooling equipment. During their operation, the internal equipment of the unit will generate a lot of heat. If the heat cannot be dissipated in time, the temperature inside the casing will be too high, affecting the performance and service life of the equipment, and even causing failure.

[0003] Currently, heat dissipation of the chassis of ground source heat pump units is a key issue. The common heat dissipation method is to install cooling fans to remove heat through forced air convection. To improve the heat dissipation effect, some units use a combination of air cooling and water cooling, using water-cooled pipes to cool the air before it is sent into the chassis. However, with this heat dissipation technology, the contact time between the air and the water-cooled pipes is short when the fan introduces the air. The air cannot fully absorb the cooling capacity of the water-cooled pipes and leaves the water-cooled pipes quickly into the chassis without being effectively cooled, resulting in low heat dissipation efficiency and making it difficult to meet the increasing heat dissipation requirements of ground source heat pump units. In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a ground source heat pump unit chassis that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: a ground source heat pump unit casing, including a casing body, a casing door rotatably connected to the opening of the casing body, air inlets symmetrically opened at the lower ends of both sides of the casing body, and exhaust ports symmetrically opened at the upper ends of both sides of the casing body. A temperature monitoring instrument is installed inside the upper end of the casing body. The casing also includes: a mounting shell, detachably connected to the air inlets of the casing body by bolts; a fan, installed inside the mounting shell; a secondary heat exchange tube, located inside the casing body near the air inlets; a pre-heat exchange tube, located inside the mounting shell and on the side of the fan away from the secondary heat exchange tube; a delivery pipe, with both ends connected to the liquid outlet of the secondary heat exchange tube and the liquid inlet of the pre-heat exchange tube, respectively; and a water supply mechanism for delivering cooling water to the secondary heat exchange tube and recovering the water that has undergone heat exchange in the pre-heat exchange tube.

[0006] Furthermore, the water supply mechanism includes a water tank, a water pump, and a refrigeration component. The water tank is fixedly connected to some lower ends of the housing near the mounting shell. The water pump is fixedly installed inside the water tank, and its outlet is connected to the liquid inlet of the secondary heat exchange tube. The refrigeration component is installed in the water tank, and the liquid outlet of the pre-heat exchange tube is connected to the liquid return port of the water tank.

[0007] To further enhance the heat exchange effect on the gas, both the secondary heat exchange tube and the pre-heat exchange tube are designed with a serpentine bend.

[0008] To prevent external dust from entering the housing, a first intercepting filter plate is fixedly connected to the exhaust port of the housing, and a second intercepting filter plate is installed at the air inlet end of the mounting shell.

[0009] To facilitate automatic cleaning of the second interceptor filter plate, a T-shaped annular groove is further provided at the air inlet of the mounting housing. A T-shaped annular plate is fixedly connected to the second interceptor filter plate, and the T-shaped annular plate is rotatably connected in the T-shaped annular groove. A fan blade assembly is fixedly connected to the side of the second interceptor filter plate near the fan.

[0010] To facilitate easier assembly and disassembly of the fan, the mounting housing further includes a first housing and a second housing, which are detachably connected by threads. The first housing is detachably connected to the casing by bolts, the fan is threaded into the first housing, and the pre-heat exchange tube and the second interception filter plate are both disposed on the second housing.

[0011] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: By setting up pre-heat exchange tubes and secondary heat exchange tubes, the present invention allows the gas to undergo two cooling processes before entering the casing, which prolongs the contact time between the gas and the coolant and reduces the temperature of the gas entering the casing. Compared with the prior art, it can more effectively remove the heat from the casing, significantly improve the heat dissipation effect on the internal equipment, ensure the stable operation of the ground source heat pump unit, and reduce the risk of equipment failure caused by high temperature.

[0012] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0013] In the attached diagram:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a partial structural schematic diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of the mounting shell and the inside of the water tank of this utility model.

[0017] In the diagram: 1. Housing; 101. Door; 102. Air inlet; 103. Exhaust outlet; 104. First intercepting filter plate; 105. Temperature monitor; 2. Mounting shell; 201. First shell; 202. Second shell; 203. Fan; 204. Secondary heat exchange tube; 205. Preheating tube; 206. Delivery pipe; 207. Second intercepting filter plate; 208. Fan blade assembly; 3. Water tank; 301. Water pump; 302. Refrigeration components. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model. Example 1

[0019] Reference Figures 1-3 A ground source heat pump unit casing includes a casing 1, with a door 101 rotatably connected to the opening of the casing 1. Air inlets 102 are symmetrically opened at the lower ends of both sides of the casing 1, and exhaust ports 103 are symmetrically opened at the upper ends of both sides of the casing 1. A temperature monitoring instrument 105 is installed inside the upper part of the casing 1. The casing also includes: a mounting shell 2, detachably connected to the air inlets 102 of the casing 1 by bolts; a fan 203 installed inside the mounting shell 2; a secondary heat exchange pipe 204 located inside the casing 1 near the air inlets 102; a pre-heat exchange pipe 205 located inside the mounting shell 2 and on the side of the fan 203 away from the secondary heat exchange pipe 204; a delivery pipe 206, with both ends connected to the liquid outlet of the secondary heat exchange pipe 204 and the liquid inlet of the pre-heat exchange pipe 205, respectively; and a water supply mechanism for supplying cooling water to the secondary heat exchange pipe 204 and recovering the water that has undergone heat exchange in the pre-heat exchange pipe 205.

[0020] The water supply mechanism includes a water tank 3, a water pump 301, and a cooling component 302. The water tank 3 is fixedly connected to some lower ends of the housing 1 near the mounting shell 2. The water pump 301 is fixedly installed inside the water tank 3, and its outlet end is connected to the liquid inlet of the secondary heat exchange tube 204. The cooling component 302 is installed in the water tank 3, and the liquid outlet of the pre-heat exchange tube 205 is connected to the liquid return port of the water tank 3.

[0021] Existing ground source heat pump units generate heat during operation, which is usually dissipated by installing cooling fans. Some units use a combination of air cooling and water cooling. However, the gas blown into the unit by the fan has a short contact time with the water cooling pipes, and the gas leaves the water cooling pipes before it is sufficiently cooled, resulting in poor heat dissipation inside the unit.

[0022] When the chassis is in use, the temperature monitoring instrument 105 can detect the temperature inside the chassis 1 in real time. When the temperature monitoring instrument 105 detects that the temperature inside the chassis 1 is high, it transmits a signal to the controller, which then starts the fan 203, water pump 301, and cooling component 302. The cooling component 302 can be a semiconductor cooling chip, which works based on the Peltier effect. When direct current passes through a coupler composed of two different semiconductor materials connected in series, one end of the coupler absorbs heat and the other end releases heat, thus achieving cooling. When the water pump 301 is working, it draws the coolant from the water tank 3 after it has been cooled by the cooling component 302 into the secondary heat exchange tube 204. The coolant flows in the secondary heat exchange tube 204 and then enters the pre-heat exchange tube 205 through the delivery pipe 206, where it completes the cooling process. After heat exchange, the gas flows back into the water tank 3. When the fan 203 is working, it will draw the outside gas into the mounting shell 2. After the gas enters the mounting shell 2, it first contacts the pre-heat exchange tube 205. The coolant in the pre-heat exchange tube 205 pre-cools the gas. Then the gas continues to flow and passes through the secondary heat exchange tube 204. The coolant in the secondary heat exchange tube 204 cools the gas again. The low-temperature gas that has been cooled twice enters the box 1 and exchanges heat with the heating equipment inside the box, taking away the heat. Finally, it is discharged through the exhaust port 103.

[0023] By setting up a pre-heat exchange pipe 205 and a secondary heat exchange pipe 204, the gas undergoes two cooling processes before entering the casing 1, which prolongs the contact time between the gas and the coolant and reduces the temperature of the gas entering the casing 1. Compared with existing technologies, it can more effectively remove heat from the casing, significantly improve the heat dissipation effect on the internal equipment, ensure the stable operation of the ground source heat pump unit, and reduce the risk of equipment failure due to high temperature.

[0024] It should be noted that any content not described in detail in this specification is prior art known to those skilled in the art. Example 2

[0025] Reference Figures 1-3 A ground source heat pump unit casing is basically the same as that in Embodiment 1, but further, the secondary heat exchange tube 204 and the pre-heat exchange tube 205 are both designed with a serpentine bend.

[0026] The serpentine bend design greatly increases the surface area of ​​the heat exchange tubes. Compared with straight pipes, serpentine tubes can provide more surface area in contact with the gas in the same space, allowing the coolant and gas to have a larger contact range in a limited space, thereby improving heat exchange efficiency and allowing the gas to be cooled better. Example 3

[0027] Reference Figures 1-3A ground source heat pump unit casing is basically the same as in Embodiment 2, but with the following additional features: a first intercepting filter plate 104 is fixedly connected to the exhaust port 103 of the casing 1, and a second intercepting filter plate 207 is installed at the air inlet end of the mounting shell 2. The second intercepting filter plate 207 is installed at the air inlet end of the mounting shell 2. When the fan 203 draws in outside air, it can filter the air entering the mounting shell 2 first. It can intercept larger particles of dust and impurities in the air, preventing these substances from entering the interior of the casing 1 with the airflow, reducing the contact between dust and equipment, and avoiding the accumulation of dust on the surface of the equipment, which affects the heat dissipation and normal operation of the equipment. The first intercepting filter plate 104 is located at the exhaust port 103. When the internal temperature of the casing 1 is within a reasonable range and heat dissipation is not required, it can prevent external dust from entering the casing 1 through the exhaust port 103.

[0028] A T-shaped annular groove is provided at the air inlet of the mounting housing 2. A T-shaped annular plate is fixedly connected to the second intercepting filter plate 207, and the T-shaped annular plate is rotatably connected in the T-shaped annular groove. A fan blade assembly 208 is fixedly connected to the side of the second intercepting filter plate 207 near the fan 203. When too much dust accumulates on the surface of the second intercepting filter plate 207, the fan 203 can be controlled to reverse and run at high speed to blow the airflow in the opposite direction. The reverse airflow directly impacts the surface of the filter plate, which can effectively loosen and blow off most of the attached dust, achieving preliminary cleaning. At the same time, the reverse airflow will drive the fan blade assembly 208 to rotate. Since the second intercepting filter plate 207 is fixedly connected to the fan blade assembly 208, the filter plate can rotate synchronously with the fan blade assembly 208. During the rotation, the dust with strong adhesion on the surface of the filter plate will be thrown out due to centrifugal force, further enhancing the cleaning effect. Frequent manual disassembly and cleaning is not required, saving maintenance time and labor costs.

[0029] Mounting housing 2 includes a first housing 201 and a second housing 202, which are detachably connected by threads. The first housing 201 is detachably connected to the housing 1 by bolts. The fan 203 is threaded into the first housing 201. The pre-heat exchange pipe 205 and the second interception filter plate 207 are both located on the second housing 202. When the fan 203 needs to be inspected or replaced, it is only necessary to remove the bolts connecting the first housing 201 and the housing 1 to separate the first housing 201 from the housing. Since the fan 203 is threaded into the first housing 201, the fan 203 can be removed along with the first housing 201. This avoids the cumbersome steps of traditional designs that require the entire mounting housing 2 to be removed in order to access the fan 203. This design transforms the complex overall disassembly into a simple component separation, greatly shortening maintenance time.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. A ground source heat pump unit casing, comprising a casing (1), wherein a casing door (101) is rotatably connected to the opening of the casing (1), air inlets (102) are symmetrically opened at the lower ends of both sides of the casing (1), and exhaust ports (103) are symmetrically opened at the upper ends of both sides of the casing (1), and a temperature monitoring instrument (105) is installed at the upper end of the interior of the casing (1), characterized in that, Also includes: Mounting housing (2) is detachably connected to the air inlet (102) of the housing (1) by bolts; The fan (203) is installed inside the mounting housing (2); The secondary heat exchange tube (204) is located inside the housing (1) near the air inlet (102); The preheat exchange tube (205) is disposed inside the mounting housing (2) and located on the side of the fan (203) away from the secondary heat exchange tube (204); The two ends of the delivery pipe (206) are respectively connected to the liquid outlet of the secondary heat exchange pipe (204) and the liquid inlet of the pre-heat exchange pipe (205); A water supply mechanism for supplying cooling water into the secondary heat exchange tube (204) and for recovering the water that has been heat-exchanged in the pre-heat exchange tube (205).

2. The ground source heat pump unit chassis according to claim 1, characterized in that, The water supply mechanism includes a water tank (3), a water pump (301), and a cooling component (302). The water tank (3) is fixedly connected to some lower ends of the housing (1) near the mounting shell (2). The water pump (301) is fixedly installed inside the water tank (3), and its outlet is connected to the liquid inlet of the secondary heat exchange tube (204). The cooling component (302) is installed in the water tank (3). The liquid outlet of the pre-heat exchange tube (205) is connected to the liquid return port of the water tank (3).

3. The ground source heat pump unit chassis according to claim 1, characterized in that, Both the secondary heat exchange tube (204) and the preheat exchange tube (205) are designed with a serpentine bend.

4. The ground source heat pump unit chassis according to claim 1, characterized in that, A first intercepting filter plate (104) is fixedly connected to the exhaust port (103) of the housing (1), and a second intercepting filter plate (207) is installed at the air inlet end of the mounting shell (2).

5. The ground source heat pump unit chassis according to claim 4, characterized in that, The air inlet of the mounting housing (2) is provided with a T-shaped ring groove. A T-shaped ring plate is fixedly connected to the second intercepting filter plate (207). The T-shaped ring plate is rotatably connected in the T-shaped ring groove. A fan blade assembly (208) is fixedly connected to the side of the second intercepting filter plate (207) near the fan (203).

6. The ground source heat pump unit chassis according to claim 5, characterized in that, The mounting housing (2) includes a first housing (201) and a second housing (202). The first housing (201) and the second housing (202) are detachably connected by threads. The first housing (201) is detachably connected to the box body (1) by bolts. The fan (203) is threadedly connected in the first housing (201). The preheat exchange tube (205) and the second interception filter plate (207) are both disposed on the second housing (202).

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