Hot water boiler control cabinet

Abstract

The utility model relates to a hot water boiler control cabinet which comprises a box body, an inner cover is arranged in the box body, a partition plate is arranged in the middle of the inner cover, the longitudinal section of the partition plate is in an inverted-L shape, so that an inner cavity of the inner cover is divided into a front cavity and a rear cavity, a plurality of air suction holes are formed in the lower portion of the partition plate, and a plurality of air return holes are formed in the top wall of the partition plate. An impeller air extractor is arranged on the lower portion of the rear cavity, an air outlet of the impeller air extractor faces upwards and is fixedly connected with a condensate water receiving disc, a disc opening is formed in the bottom of the condensate water receiving disc, and the air outlet of the impeller air extractor is connected with the disc opening. The edge of the disc opening is provided with an upward backflow prevention flange, the upper side edge of the backflow prevention flange is fixedly connected with a water baffle, the condensate water receiving disc is provided with a water leakage opening, and the upper portion of the rear cavity is fixedly connected with a finned evaporator. According to the utility model, humidity in the cabinet can be reduced, thereby preventing short circuit of the circuit board and preventing rusting of electrical devices.

Description

Technical Field

[0001] The utility model relates to the technical field of control cabinets, in particular to a hot water boiler control cabinet. Background Art

[0002] The hot water boiler workshop houses multiple boilers, resulting in high levels of steam and humidity. The on-site start / stop control and temperature control of each boiler are program-controlled, resulting in a control cabinet installed on-site, with each boiler connected to the cabinet. The control cabinet houses circuit boards. Due to the high humidity, even with a seal around the control cabinet door, it's difficult to prevent warm, humid air from entering. Over time, this could cause circuit board shorts, resulting in safety incidents, or rust electronic components, shortening their lifespan. Utility Model Content

[0003] The utility model aims to provide a hot water boiler control cabinet, which can reduce the humidity in the cabinet, thereby preventing short circuits in circuit boards and rusting of electrical components.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A hot water boiler control cabinet includes a box body, an inner cover is provided in the box body, a partition plate is provided in the middle of the inner cover, the longitudinal section profile of the partition plate is in an "inverted L" shape, thereby dividing the inner cavity of the inner cover into a front cavity and a rear cavity, a plurality of air extraction holes are provided at the lower part of the partition plate, a plurality of air return holes are provided on the top wall of the partition plate, the air extraction holes and the air return holes connect the front cavity and the rear cavity, an impeller exhaust fan is provided at the lower part of the rear cavity, the air outlet of the impeller exhaust fan faces upward, a condensate receiving pan is fixedly connected to the air outlet of the impeller exhaust fan, a pan opening is provided at the bottom of the condensate receiving pan, and the air outlet of the impeller exhaust fan is connected to the pan The condenser is connected with an opening, and an upward anti-backflow flange is provided on the edge of the opening of the dish. A water baffle is fixedly connected to the upper edge of the anti-backflow flange. The condensed water receiving dish is provided with a water leakage port. A finned evaporator is fixedly connected to the upper part of the rear cavity. An air compressor and a water tank are provided at the lower part of the box body. A condenser is provided in the water tank. The air outlet of the air compressor is connected to the condenser through a pipe, and the liquid outlet of the condenser is connected to the finned evaporator through a pipe. The air outlet of the finned evaporator is connected to the air compressor through a pipe. The water tank is connected with a water inlet and a water outlet, and the water leakage port is connected to the water inlet through a pipe.

[0006] Specifically, there are two impeller air pumps, which are distributed in the transverse direction. The cross-sectional profiles of the air outlets of the two impeller air pumps when they abut against each other correspond to the anti-backflow flange.

[0007] Specifically, the fin-type evaporator includes a refrigerant pipe, which is folded in a horizontal direction to form a single-layer folded structure. The refrigerant pipe forms a multi-layer folded structure layer by layer. One end of the refrigerant pipe is connected to the liquid outlet of the condenser, and the other end of the refrigerant pipe is connected to the air inlet of the air compressor.

[0008] Specifically, the fin-type evaporator is provided with a plurality of evaporating fins, which are arranged in a transverse direction. Each evaporating fin is penetrated by each section of the refrigerant pipe and contacts the refrigerant pipe at the penetration point.

[0009] Specifically, the condensate receiving pan is square, the anti-backflow flange is square, the height of the anti-backflow flange is higher than the edge of the condensate receiving pan, the four corners of the anti-backflow flange are fixed with connecting rods, the connecting rods are fixed to the bottom wall of the water baffle, the water baffle is rectangular, and the size of the water baffle is larger than the leakage outlet.

[0010] Specifically, both lateral side walls of the front cavity are fixedly connected with mounting support strips.

[0011] Specifically, an opening and closing door is hingedly connected to the front opening of the inner cover.

[0012] Specifically, the front opening of the inner cover is provided with an edge portion, the front wall of the edge portion is provided with an annular groove, and a sealing ring is installed in the annular groove, and the sealing ring can form a seal with the opening and closing door.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] To reduce the humidity in the front chamber, an impeller exhauster is installed at the bottom of the rear chamber. When the impeller exhauster is turned on, the air in the front chamber is drawn into the rear chamber through the exhaust port, where it flows through the finned evaporator on the upper side and then re-enters the front chamber through the return port. The finned evaporator, the condenser in the water tank, and the air compressor form a heat pump system. When the warm and humid air with higher humidity in the front chamber is drawn to the finned evaporator, the air exchanges heat with the finned evaporator. The finned evaporator absorbs heat, cooling the warm and humid air. As a result, most of the moisture in the air condenses into water droplets, which adhere to the evaporation fins and collect and drip into the condensate receiving pan.

[0015] The bottom of the condensate receiving tray is provided with a tray opening (not shown in the figure), and the edge of the tray opening is provided with an upward anti-backflow flange. The cross-sectional profile of the air outlets of the two impeller vacuum pumps when they abut against each other corresponds to the anti-backflow flange. The anti-backflow flange can prevent the condensate in the condensate receiving tray from falling into the air outlets of the two impeller vacuum pumps. A water baffle is fixed to the upper edge of the anti-backflow flange to prevent the condensate from dripping into the air outlets of the two impeller vacuum pumps. The condensate receiving tray is provided with a water leakage port, which is connected to the water inlet of the water tank through a pipe. The water inlet of the water tank is also connected to other water inlet pipes so that the water tank has enough water to cool the condenser installed therein (not shown in the figure).

[0016] The humidity of the gas flowing through the finned evaporator is greatly reduced, and it re-enters the front chamber through the return air hole, so that the air pressure in the front chamber is balanced. In this way, the front chamber can be maintained at a low humidity and temperature state, which is beneficial to the operation of the electronic components therein, avoiding short circuits and rusting of the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is the appearance view of the hot water boiler control cabinet;

[0019] Figure 2 This is a view of the anterior cavity;

[0020] Figure 3 This is the internal view of the hot water boiler control cabinet;

[0021] Figure 4 A view of the inner cover and related structures;

[0022] Figure 5 Another internal view of the hot water boiler control cabinet;

[0023] Figure 6 Another internal view of the hot water boiler control cabinet.

[0024] In the picture:

[0025] 1. Inner cover; 11. Partition plate; 111. Exhaust hole; 112. Return air hole; 12. Front cavity; 121. Mounting support bar; 13. Rear cavity; 14. Opening and closing door; 15. Sealing ring;

[0026] 2. Impeller vacuum pump;

[0027] 3. Condensate receiving tray; 31. Anti-backflow flange; 32. Water baffle; 33. Leakage port;

[0028] 4. Finned evaporator; 41. Evaporation fin;

[0029] 5. Air compressor;

[0030] 6. Water tank. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] See Figures 1 to 6 A hot water boiler control cabinet includes a housing, an inner housing 1, and a partition plate 11 disposed in the middle of the inner housing 1. The partition plate 11 has an inverted L-shaped longitudinal cross-section, thereby dividing the inner cavity of the inner housing 1 into a front cavity 12 and a rear cavity 13. The lower portion of the partition plate 11 is provided with a plurality of air extraction holes 111, and the top wall of the partition plate 11 is provided with a plurality of air return holes 112. The air extraction holes 111 and the air return holes 112 connect the front cavity 12 and the rear cavity 13.

[0033] An impeller pump 2 is installed at the bottom of the rear chamber 13. Its outlet faces upward, and a condensate receiving pan 3 is fixedly connected to it. The bottom of the condensate receiving pan 3 is provided with a pan opening (not shown). The air outlet of the impeller pump 2 is connected to the pan opening. The edge of the pan opening is provided with an upward-facing anti-backflow flange 31, and a water baffle 32 is fixedly connected to the upper edge of the anti-backflow flange 31. The condensate receiving pan 3 is provided with a water leakage port 33.

[0034] The upper portion of the rear chamber 13 is fixedly connected to the finned evaporator 4. The lower portion of the housing is provided with an air compressor 5 and a water tank 6. A condenser (not shown) is housed within the water tank 6. The air outlet of the air compressor 5 is connected to the condenser via a pipe. The liquid outlet of the condenser is connected to the finned evaporator 4 via a pipe. The air outlet of the finned evaporator 4 is also connected to the air compressor 5 via a pipe. The water tank 6 has a water inlet and outlet. The water leak 33 is connected to the water inlet via a pipe.

[0035] Specifically, there are two impeller air pumps 2, which are distributed in the transverse direction. The air outlets of the two impeller air pumps 2 ( Figure 5 、 Figure 6 The cross-sectional profile of the backflow prevention flange 31 when the backflow prevention flange 31 abuts against each other (e.g. Figure 6 shown).

[0036] Specifically, the finned evaporator 4 includes a refrigerant pipe (not shown), which is folded in a zigzag manner in the transverse direction to form a single-layer folded structure. The refrigerant pipe is formed into a multi-layer folded structure layer by layer. One end of the refrigerant pipe ( Figure 6 A in the middle) is connected to the liquid outlet of the condenser, and the other end of the refrigerant pipe ( Figure 6 B in the middle) is connected to the air inlet of the air compressor 5.

[0037] Specifically, the fin-type evaporator 4 is provided with a plurality of evaporating fins 41 , which are arranged in a transverse direction. Each evaporating fin 41 is penetrated by each section of the refrigerant pipe and contacts the refrigerant pipe at the penetration point.

[0038] Specifically, the condensate receiving pan 3 is square, the anti-backflow flange 31 is square, the height of the anti-backflow flange 31 is higher than the edge of the condensate receiving pan 3, and the four corners of the anti-backflow flange 31 are fixed with connecting rods, which are fixed to the bottom wall of the water baffle 32. The water baffle 32 is rectangular, and the size of the water baffle 32 is larger than the leakage port 33.

[0039] Specifically, the two lateral side walls of the front cavity 12 are fixed with mounting support bars 121 .

[0040] Specifically, an opening and closing door 14 is hingedly connected to the front opening of the inner cover 1 .

[0041] Specifically, the front opening of the inner cover 1 is provided with an edge portion, the front wall of the edge portion is provided with an annular groove, and a sealing ring 15 is installed in the annular groove. The sealing ring 15 can form a seal with the opening and closing door 14.

[0042] The working principle of the utility model hot water boiler control cabinet is as follows:

[0043] The two corresponding mounting support bars 121 on the left and right are used to mount a support plate (not shown) for mounting a control circuit board. The hot water boiler control cabinet of the present invention is installed in a hot water boiler workshop, where there is a lot of moisture and high humidity. Therefore, even if the opening and closing door 14 is closed, moisture will inevitably enter the front chamber 12.

[0044] To reduce the humidity in the front chamber 12, an impeller exhauster 2 is provided at the bottom of the rear chamber 13. When the impeller exhauster 2 is turned on, the gas in the front chamber 12 is drawn into the rear chamber 13 through the exhaust port 111, flows through the finned evaporator 4 on the upper side, and then re-enters the front chamber 12 through the return port 112. The finned evaporator 4, the condenser in the water tank 6, and the air compressor 5 form a heat pump system. When the warm and humid gas with a higher humidity in the front chamber 12 is drawn to the finned evaporator 4, the gas exchanges heat with the finned evaporator 4, which absorbs heat and cools the warm and humid gas. As a result, most of the water in the gas condenses into water droplets, which adhere to the evaporation fins 41 and collect and drip onto the condensed water receiving pan 3.

[0045] The bottom of the condensate receiving tray 3 is provided with a tray opening (not shown in the figure), and the edge of the tray opening is provided with an upward anti-backflow flange 31. The air outlets of the two impeller exhausters 2 ( Figure 5 、 Figure 6 The cross-sectional profile of the backflow prevention flange 31 when the backflow prevention flange 31 abuts against each other (e.g. Figure 6(As shown), the backflow prevention flange 31 prevents condensed water from the condensate receiving pan 3 from falling into the air outlets of the two impeller pumps 2. A water baffle 32 is fixedly attached to the upper edge of the backflow prevention flange 31 to prevent condensed water from dripping into the air outlets of the two impeller pumps 2. The condensate receiving pan 3 is provided with a drain port 33, which is connected to the water inlet of the water tank 6 via a pipe. The water inlet of the water tank 6 is also connected to other external water inlet pipes, ensuring that the water tank 6 has sufficient water to cool the condenser installed therein (not shown).

[0046] The humidity of the gas flowing through the finned evaporator 4 is greatly reduced, and it re-enters the front chamber 12 through the return air hole 112, so that the air pressure in the front chamber 12 is balanced. In this way, the front chamber 12 can be maintained at a low humidity and temperature state, which is beneficial to the operation of the electronic components therein, avoids short circuits, and prevents rusting of the components.

[0047] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A hot water boiler control cabinet, characterized by: The utility model comprises a box body, an inner cover is provided in the box body, a partition plate is provided in the middle of the inner cover, the longitudinal section profile of the partition plate is in an "inverted L" shape, thereby dividing the inner cavity of the inner cover into a front cavity and a rear cavity, a plurality of air extraction holes are provided at the lower part of the partition plate, a plurality of air return holes are provided on the top wall of the partition plate, the air extraction holes and the air return holes connect the front cavity and the rear cavity, an impeller exhaust fan is provided at the lower part of the rear cavity, the air outlet of the impeller exhaust fan faces upward, a condensate receiving pan is fixedly connected to the air outlet of the impeller exhaust fan, a pan opening is provided at the bottom of the condensate receiving pan, and the air outlet of the impeller exhaust fan is connected to the pan opening. An upward anti-backflow flange is provided on the edge of the pan opening, a water baffle is fixedly connected to the upper edge of the anti-backflow flange, a water leakage port is provided in the condensed water receiving pan, a finned evaporator is fixedly connected to the upper part of the rear cavity, an air compressor and a water tank are provided at the lower part of the box body, a condenser is provided in the water tank, the air outlet of the air compressor is connected to the condenser through a pipe, the liquid outlet of the condenser is connected to the finned evaporator through a pipe, the air outlet of the finned evaporator is connected to the air compressor through a pipe, the water tank is connected to a water inlet and a water outlet, and the water leakage port is connected to the water inlet through a pipe.

2. The hot water boiler control cabinet according to claim 1, characterized in that: There are two impeller air pumps, which are distributed in the transverse direction. The cross-sectional profiles of the air outlets of the two impeller air pumps when they abut against each other correspond to the anti-backflow flange.

3. The hot water boiler control cabinet according to claim 1 is characterized in that: The finned evaporator includes a refrigerant pipe, which is folded in a zigzag manner in the horizontal direction to form a single-layer folded structure. The refrigerant pipe forms a multi-layer folded structure layer by layer. One end of the refrigerant pipe is connected to the liquid outlet of the condenser, and the other end of the refrigerant pipe is connected to the air inlet of the air compressor.

4. The hot water boiler control cabinet according to claim 3 is characterized in that: The finned evaporator is provided with a plurality of evaporating fins, which are arranged in a transverse direction. Each evaporating fin is penetrated by a section of the refrigerant pipe and contacts the refrigerant pipe at the penetration point.

5. The hot water boiler control cabinet according to claim 1 is characterized in that: The condensate receiving pan is square, the anti-backflow flange is square, the height of the anti-backflow flange is higher than the edge of the condensate receiving pan, the four corners of the anti-backflow flange are fixed with connecting rods, the connecting rods are fixed to the bottom wall of the water baffle, the water baffle is rectangular, and the size of the water baffle is larger than the leakage outlet.

6. The hot water boiler control cabinet according to claim 1, characterized in that: The two lateral side walls of the front cavity are both fixedly connected with mounting support strips.

7. The hot water boiler control cabinet according to claim 1, characterized in that: The front opening of the inner cover is hinged with an opening and closing door.

8. The hot water boiler control cabinet according to claim 7, characterized in that: The front opening of the inner cover is provided with an edge portion, the front wall of the edge portion is provided with an annular groove, and a sealing ring is installed in the annular groove, and the sealing ring can form a seal with the opening and closing door.

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