Anti-condensation hydraulic module cavity

Abstract

The present invention relates to the field of building cooling / heating, and in particular to a hydraulic module for a room. A cavity partition is provided in the cavity of the anti-condensation hydraulic module of the present invention, which is divided into a low-temperature side cavity and a high-temperature side cavity. A heat exchanger is provided in the low-temperature side cavity, and a water pump and a secondary circulation supply / return water pipeline are provided in the high-temperature side cavity; a plurality of connecting ports are provided on the cavity partition, and water pipes are connected to the heat exchanger and the secondary circulation supply / return water pipeline through the connecting ports; each connection of the cavity partition is sealed to isolate the air circulation between the low-temperature side cavity and the high-temperature side cavity. The present invention uses a cavity partition to separate the primary side supply and return water and the secondary side supply and return water. The water temperature in the high-temperature side cavity is relatively high, and the risk of condensation is small; the water temperature on the low-temperature side is relatively low, and the risk of condensation is large; different insulation measures and sealing measures are adopted for different risk levels, which can greatly reduce the overall condensation risk.

Description

Technical Field

[0001] The invention relates to the field of building cooling / heating, and in particular to a hydraulic module for a room. Background Art

[0002] In the building hydraulic module, all related components such as heat exchangers, water pumps, manifolds, etc. are integrated into a box. The highly integrated hydraulic module has the advantages of high quality assurance and convenient on-site installation. However, the inside of the traditional hydraulic module box is a cavity that contains all the components. If the hydraulic module contains heat exchange equipment, such as plate heat exchangers, shell and tube heat exchangers, or hydraulic circulation equipment, such as water pumps, there will be two supply and return water temperature conditions due to heat exchange. For example, when cooling, the supply and return water temperature on the primary side is 7 / 12°C, and the supply and return water temperature on the secondary side is 16 / 19°C. There are two condensation risks on both sides of the plate heat exchanger. In addition, if there are gaps in the insulation, the condensation phenomenon will be more serious. Especially when the hydraulic module is used in residential areas, the condensation phenomenon will cause more condensed water to drip, and leakage will occur, which will cause more trouble to users.

[0003] Chinese patent CN201821927237.4 discloses a hydraulic module of a split-type cooling and heating machine, which is characterized by including an electric heating device, an expansion tank, a booster pump, a heat exchanger, a control component, a water flow switch and a water pressure gauge; the water outlet of the electric heating device is respectively connected to the water inlet of the expansion tank and the water inlet of the booster pump, the water inlet of the electric heating device is connected to the water outlet of the heat exchanger, the water inlet of the heat exchanger is connected to the main machine waterway, and the water outlet of the booster pump is connected to the main machine waterway; the water flow switch and the water pressure gauge are both arranged on the pipe where the water inlet of the heat exchanger is connected to the main machine waterway, and the control component is electrically connected to the electric heating device, the booster pump and the water flow switch. Its advantages are: the structure of the main machine plus the hydraulic module and the integrated design of the various functions of the hydraulic module are adopted to solve the problem of unit damage caused by low application environment temperature. In this patent, the primary and secondary side supply and return water are both located in the hydraulic module, and the condensation problem is still not solved. Summary of the invention

[0004] The present invention aims to provide an anti-condensation hydraulic module cavity, which divides the hydraulic module into two cavities and performs targeted insulation and sealing treatment to solve the condensation problem.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An anti-condensation hydraulic module cavity, wherein:

[0007] A cavity partition is provided in the hydraulic module cavity to separate it into two parts: the low-temperature side cavity and the high-temperature side cavity. A heat exchanger is provided in the low-temperature side cavity, and a water pump and a secondary circulation supply / return water pipeline are provided in the high-temperature side cavity. Several connecting ports are provided on the cavity partition, and the water pipes are connected to the heat exchanger and the secondary circulation supply / return water pipeline through the connecting ports. The joints of the cavity partition are sealed to isolate the air circulation between the low-temperature side cavity and the high-temperature side cavity. This solution uses a cavity partition to separate the primary side supply and return water and the secondary side supply and return water, so that the low-temperature side cavity and the high-temperature side cavity on both sides are independent of each other, to isolate the air circulation between the cavities on both sides, so that the temperatures in the cavities on both sides remain independent and have no influence on each other, greatly reducing the probability of condensation.

[0008] Furthermore, the low-temperature side cavity is formed by the low-temperature side shell plate and the cavity partition plate and has a containing space, and the low-temperature side shell plate and the cavity partition plate are provided with a heat-insulating layer; the high-temperature side cavity is formed by the high-temperature side shell plate and the cavity partition plate and has a containing space, and the high-temperature side shell plate is provided with a heat-insulating layer. The provision of each heat-insulating layer relatively isolates the heat exchange between the high / low temperature side cavity and the external environment, further reducing the probability of condensation.

[0009] Preferably, the thickness of the insulation layer of the low-temperature side shell plate and the cavity partition is greater than the insulation layer set on the high-temperature side shell plate. The risk of condensation on the low-temperature side is higher, so designing a thicker insulation layer can effectively reduce the probability of condensation.

[0010] Preferably, the low-temperature side shell plate of the low-temperature side cavity includes a double-layer plate structure, and the insulation layer of the low-temperature side shell plate is located between the double-layer plates and has a thickness greater than or equal to 20 mm. The cavity partition includes a double-layer plate structure, and the insulation layer of the cavity partition is located between the double-layer plates and has a thickness greater than or equal to 20 mm. The high-temperature side shell plate of the high-temperature side cavity includes a double-layer plate structure, and the insulation layer of the high-temperature side shell plate is located between the double-layer plates and has a thickness greater than or equal to 10 mm. In this solution, different insulation strategies are adopted for the low-temperature side cavity and the high-temperature side cavity. It is found in practice that such a specific setting can reduce condensation.

[0011] Further preferably, the connection between the low temperature side shell plates of the low temperature side cavity and between the shell plates and the cavity partition is sealed; the connection between the high temperature side shell plates of the high temperature side cavity and between the shell plates and the cavity partition is sealed. The sealing can prevent water vapor in the air from entering the low temperature side cavity or the high temperature side cavity and causing condensation.

[0012] Furthermore, a plurality of water pipe interfaces are provided on the low temperature side shell plate of the low temperature side cavity and the high temperature side shell plate of the high temperature side cavity.

[0013] The water pipe interface passes through the double-layer structure and insulation layer of the shell plate. The part between the water pipe interface and the insulation layer and located inside the insulation layer is provided with a thermal insulation gasket. The part of the water pipe interface located outside the insulation layer has a joint insulation layer on its outer wall. The water pipe interface is located at the connection position between the insulation layer and the shell plate with a sealing rubber ring.

[0014] Furthermore, the connecting port of the cavity partition passes through the double-layer structure and the insulation layer of the cavity partition, and the part between the connecting port and the insulation layer and located inside the insulation layer is provided with a thermal insulation gasket, and the part where the connecting port is located outside the insulation layer has a connecting port insulation layer on its outer wall; the connecting port is located at the connection position between the insulation layer and the double-layer structure, and a sealing rubber ring is provided.

[0015] The thermal insulation and sealing settings at the water pipe interface and the connecting port of the cavity partition are basically the same, which can further improve the thermal insulation and sealing effects.

[0016] Furthermore, the insulation layer of the connecting port is located on the side of the low-temperature side cavity and has the same thickness as the insulation layer of the low-temperature side shell plate; and is located on the side of the high-temperature side cavity and has the same thickness as the insulation layer of the high-temperature side shell plate. The consistent insulation setting can minimize the probability of condensation.

[0017] Furthermore, the insulation layers provided on the low-temperature side shell plate, the high-temperature side shell plate and the cavity partition plate are rubber foam, polystyrene foam or polyurethane foam.

[0018] The present invention has at least one of the following beneficial effects:

[0019] 1. The hydraulic module is divided into two cavities, low temperature and high temperature, to isolate the air circulation between the two cavities, so that the temperatures in the two cavities remain independent and have no influence on each other, greatly reducing the probability of condensation.

[0020] 2. The setting of each insulation layer in the low-temperature side shell plate, the high-temperature side shell plate and the cavity partition relatively isolates the heat exchange between the high / low temperature side cavity and the external environment, further reducing the probability of condensation.

[0021] 3. Different insulation strategies are adopted for the low-temperature side cavity and the high-temperature side cavity, which reduces condensation.

[0022] 4. The sealing setting can prevent water vapor in the air from entering the low-temperature side cavity or the high-temperature side cavity and causing condensation.

[0023] 5. The setting of the connection port position between the water pipe interface and the cavity partition further improves the insulation and sealing effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of an embodiment of the anti-condensation hydraulic module cavity of the present invention;

[0025] Figure 2 It is a schematic diagram of another embodiment of the anti-dew condensation hydraulic module cavity of the present invention;

[0026] Figure 3 This is a schematic diagram of an embodiment of a water pipe interface in the present invention;

[0027] Figure 4 It is a schematic diagram of an embodiment of the connecting port in the present invention.

[0028] Among them: 100 low temperature side cavity; 110 low temperature side shell plate; 101 heat exchanger; 102 heat metering equipment; 103 valve; 200 high temperature side cavity; high temperature side shell plate 210; 201 water pump; 202 secondary circulation water supply pipeline; 203 secondary circulation return pipeline; 204 pressure stabilizing device; 205 constant pressure water supply connector; 206 electronic control unit; 3 cavity partition; 301 connecting port; 302 connecting port insulation layer; 4 water pipe interface; 401 joint insulation layer; 5 insulation layer; 6 insulation gasket; 7 sealing rubber ring. The arrow direction in the figure is the direction of water flow. DETAILED DESCRIPTION

[0029] In order to promote the understanding of the principle of the present invention, now refer to the embodiment shown and use specific language to describe it. However, it should be understood that protection scope of the present invention is not limited to this. All replacements, changes and further applications related to the present invention that can be thought of by those of ordinary skill in the art should be included in protection scope of the present invention.

[0030] In the following embodiments, to avoid confusion in the drawings, the same content in the drawings is marked only at one or two locations. For example, only one valve 103 is marked in the drawings, and the rest of the same contents are omitted. In the following embodiments, "upper", "lower", "left", and "right" refer to the "upper", "lower", "left", and "right" of the intuitive orientation of the drawings.

[0031] In the following embodiments, the primary side supply and return water temperature of 7 / 12°C is defined as the low temperature side during summer cooling; the secondary side supply and return water temperature of 16 / 19°C is defined as the high temperature side. Since condensation is more prominent in summer and there is basically no condensation risk in winter, it is defined based on summer cooling. In winter heating, the primary side temperature is actually higher and the secondary side temperature is lower. "High temperature" and "low temperature" are not limitations of the present invention.

[0032] An anti-condensation hydraulic module cavity according to an embodiment of the present invention is as follows: Figure 1A cavity partition 3 is provided in the hydraulic module cavity, which is divided into two parts, the low-temperature side cavity 100 and the high-temperature side cavity 200. A heat exchanger 101 is provided in the low-temperature side cavity 100. A heat metering device 102, several valves 103 and required water pipelines can also be arranged in the low-temperature side cavity 100. A water pump 201, a secondary circulation water supply pipeline 202, and a secondary circulation return water pipeline 203 are arranged in the high-temperature side cavity 200. A pressure stabilizing device 204, a constant pressure water replenishment connector 205, an electronic control unit 206 and required valves and water pipelines can also be arranged in the high-temperature side cavity 200. Several connecting ports 301 (two are taken as an example in the figure) are provided on the cavity partition 3. The water pipe connects the heat exchanger 101 and the secondary circulation water supply pipeline 202 and the secondary circulation return water pipeline 203 through the connecting port. The joints of the cavity partition 3 are sealed to isolate the air flow between the low temperature side cavity 100 and the high temperature side cavity 200. A plurality of water pipe interfaces 4 are provided on the low temperature side shell plate 110 of the low temperature side cavity 100 and the high temperature side shell plate 210 of the high temperature side cavity 200.

[0033] Figure 1 The water pipe interfaces 4 are located in the left and right dotted boxes. In the left dotted box, the low-temperature side shell plate 110 is the fresh air water supply pipe interface, the main water inlet pipe interface, the main water return pipe interface and the fresh air return pipe interface from top to bottom. In the right dotted box, the high-temperature side shell plate 210 is the radiation water supply pipe interface, the water supply pipe interface and the radiation return pipe interface from top to bottom. Various water pipe interfaces 4 are determined according to needs, and this embodiment is only an example.

[0034] In another illustrative embodiment, Figure 2 , a cavity partition 3 is provided in the hydraulic module cavity, which divides it into two parts, a low-temperature side cavity 100 and a high-temperature side cavity 200. The low-temperature side cavity 100 is formed by a low-temperature side shell plate 110 and a cavity partition 3 and has an accommodating space. The equipment arranged in the low-temperature side cavity 100 is the same as that in the previous embodiment. The low-temperature side shell plate 110 and the cavity partition 3 are provided with an insulation layer 5. The high-temperature side cavity 200 is formed by a high-temperature side shell plate 210 and a cavity partition 3 and has an accommodating space. The high-temperature side shell plate 210 is provided with an insulation layer 5. The equipment arranged in the high-temperature side cavity 200 is the same as that in the previous embodiment. The setting of each insulation layer 5 relatively isolates the heat exchange between the high / low temperature side cavity and the external environment, further reducing the probability of condensation. The insulation layer 5 can be made of various commonly used insulation materials. The insulation layer 5 can be arranged on the inner side (i.e., in the cavity) or the outer side (i.e., outside the cavity) of the high / low temperature side shell plate, or the high / low temperature side shell plate can be made hollow, and the insulation layer 5 can be arranged therein, which has the best sealing. The insulation layer 5 of the cavity partition 3 can also be arranged on its left side (in the low temperature side cavity) or right side (in the high temperature side cavity), or the cavity partition can be made into a hollow sheet metal shell, and the insulation layer 5 can be arranged therein, which also has the best sealing.

[0035] The thickness of the insulation layer 5 of the low temperature side shell plate 110 and the cavity partition plate 3 is greater than the insulation layer 5 provided on the high temperature side shell plate 210. The risk of condensation on the low temperature side is higher, so a thicker insulation layer design can effectively reduce the probability of condensation.

[0036] The water pipe is connected to the heat exchanger 101 and the secondary circulation water supply pipeline 202 and the secondary circulation water return pipeline 203 through the connecting port. The joints of the cavity partition 3 are sealed to isolate the air circulation between the low-temperature side cavity 100 and the high-temperature side cavity 200. A plurality of water pipe interfaces 4 are provided on the low-temperature side shell plate 110 of the low-temperature side cavity 100 and the high-temperature side shell plate 210 of the high-temperature side cavity 200.

[0037] like Figure 2 A preferred embodiment is shown, in which the low-temperature side shell plate 110 of the low-temperature side cavity 100 includes a double-layer plate structure, and the insulation layer 5 of the low-temperature side shell plate 110 is located between the double-layer plates and has a thickness greater than or equal to 20 mm. The cavity partition 3 includes a double-layer plate structure, and the insulation layer 5 of the cavity partition 3 is located between the double-layer plates and has a thickness greater than or equal to 20 mm. The high-temperature side shell plate 210 of the high-temperature side cavity 200 includes a double-layer plate structure, and the insulation layer 5 of the high-temperature side shell plate 210 is located between the double-layer plates and has a thickness greater than or equal to 10 mm. The connection between the low-temperature side shell plates 110 of the low-temperature side cavity 100 and between the cavity partition 3 is sealed. The connection between the high-temperature side shell plates 210 of the high-temperature side cavity 200 and between the cavity partition 3 is sealed. The sealing can prevent water vapor in the air from entering the low-temperature side cavity 100 or the high-temperature side cavity 200 to cause condensation. The heat-insulating layer 5 provided on the low-temperature side shell plate 110 , the high-temperature side shell plate 210 and the cavity partition plate 3 is rubber foam, polystyrene foam or polyurethane foam.

[0038] In this embodiment, different heat preservation strategies are adopted for the low temperature side cavity 100 and the high temperature side cavity 200. It is found in practice that such a setting can reduce the occurrence of condensation. The water temperature in the low temperature side cavity 100 is relatively low, and the risk of condensation is high; the water temperature in the high temperature side cavity 200 is relatively high, and the risk of condensation is low; different heat preservation measures and sealing measures are adopted for different risk levels, which can greatly reduce the overall condensation risk.

[0039] In some embodiments of the present invention, Figure 3 The water pipe interface 4 passes through the double-layer structure and the insulation layer 5 of the shell plate. The water pipe interface 4 is made integrally with each shell plate where it is located. A heat-insulating gasket 6 is provided between the water pipe interface 4 and the insulation layer 5 and in the insulation layer 5. The heat-insulating gasket 6 can be made of rubber or plastic. The outer wall of the part of the water pipe interface 4 outside the insulation layer 5 is provided with a joint insulation layer 401. A sealing rubber ring 7 is provided at the connection position of the water pipe interface 4 at the insulation layer 5 and the shell plate.

[0040] In some embodiments of the present invention, Figure 4 , the connecting port 301 of the cavity partition 3 passes through the double-layer structure and the insulation layer 5 of the cavity partition 3. The portion between the connecting port 301 and the insulation layer 5 and located inside the insulation layer is provided with a heat insulating gasket 6. The portion of the connecting port 301 located outside the insulation layer 5 has a connecting port insulation layer 302 on its outer wall. The connecting port 301 is located at the connection position of the insulation layer 5 and the double-layer structure and is provided with a sealing rubber ring 7. The connecting port 301 and the cavity partition 3 in which it is located are made integrally. The connecting port insulation layer 302 is located on one side of the low-temperature side cavity 100 and has the same thickness as the insulation layer 5 of the low-temperature side shell plate 110; the connecting port insulation layer 302 is located on one side of the high-temperature side cavity 100 and has the same thickness as the insulation layer 5 of the high-temperature side shell plate 210. The consistent insulation setting can minimize the probability of condensation. The insulation sealing of the water pipe interface 4 and the connecting port 301 can further improve the insulation and sealing effects.

[0041] Although the present invention has been illustrated and described in detail in conjunction with the accompanying drawings and the foregoing description, it should be regarded as illustrative and not limited thereto. It should be understood that only preferred embodiments are shown and described herein, and it is expected that all changes and modifications brought about by the principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An anti-condensation hydraulic module cavity, wherein: The hydraulic module cavity is provided with a cavity partition to separate it into a low-temperature side cavity and a high-temperature side cavity. A heat exchanger is arranged in the low-temperature side cavity, and a water pump and a secondary circulation water supply / return pipeline are arranged in the high-temperature side cavity; The cavity partition is provided with a plurality of communication ports, through which the water pipe is connected to the heat exchanger and the secondary circulation water supply / return pipeline; The joints of the cavity partitions are sealed to isolate the air flow between the low-temperature side cavity and the high-temperature side cavity.

2. The anti-dew condensation hydraulic module cavity according to claim 1, wherein: The low-temperature side cavity is formed by a low-temperature side shell plate and the cavity partition plate and has an accommodating space, and the low-temperature side shell plate and the cavity partition plate are provided with a heat-insulating layer; The high-temperature side cavity is formed by a high-temperature side shell plate and the cavity partition plate and has an accommodating space, and the high-temperature side shell plate is provided with a heat insulation layer.

3. The anti-dew condensation hydraulic module cavity according to claim 2, wherein: The thickness of the insulation layer of the low-temperature side shell plate and the cavity partition plate is greater than the insulation layer provided on the high-temperature side shell plate.

4. The anti-dew condensation hydraulic module cavity according to claim 3, wherein: The low-temperature side shell plate of the low-temperature side cavity comprises a double-layer plate structure, and the insulation layer of the low-temperature side shell plate is located between the double-layer plates and has a thickness greater than or equal to 20 mm; The high-temperature side shell plate of the high-temperature side cavity includes a double-layer plate structure, and the insulation layer of the high-temperature side shell plate is located between the double-layer plates and has a thickness greater than or equal to 10 mm.

5. The anti-condensation hydraulic module cavity according to any one of claims 3 or 4, wherein: The cavity partition includes a double-layer plate structure, and the heat-insulating layer of the cavity partition is located between the double-layer plates and has a thickness greater than or equal to 20 mm.

6. The anti-condensation hydraulic module cavity according to any one of claims 1 to 3, wherein: The connection between the low temperature side shell plates of the low temperature side cavity and between the shell plates and the cavity partition plates is sealed; The connections between the high-temperature side shell plates of the high-temperature side cavity and between the shell plates and the cavity partition plates are sealed.

7. The anti-dew condensation hydraulic module cavity according to any one of claims 1 to 3, wherein: A plurality of water pipe interfaces are provided on the low temperature side shell plate of the low temperature side cavity and the high temperature side shell plate of the high temperature side cavity. The water pipe interface passes through the double-layer structure and the insulation layer of the shell plate. The part between the water pipe interface and the insulation layer and located inside the insulation layer is provided with a thermal insulation gasket. The part of the water pipe interface located outside the insulation layer has a joint insulation layer on its outer wall. The water pipe interface is provided with a sealing rubber ring at the connection position between the insulation layer and the shell plate.

8. The anti-dew condensation hydraulic module cavity according to any one of claims 1 to 3, wherein: The connecting port of the cavity partition passes through the double-layer structure and the thermal insulation layer of the cavity partition; a thermal insulation gasket is provided in the portion between the connecting port and the thermal insulation layer and located inside the thermal insulation layer; a connecting port thermal insulation layer is provided on the outer wall of the portion where the connecting port is located outside the thermal insulation layer; a sealing rubber ring is provided at the connecting position of the connecting port between the thermal insulation layer and the double-layer structure.

9. The anti-dew condensation hydraulic module cavity according to claim 8, wherein: The insulation layer of the connecting port is located on one side of the low-temperature side cavity and has the same thickness as the insulation layer of the low-temperature side shell plate; and is located on one side of the high-temperature side cavity and has the same thickness as the insulation layer of the high-temperature side shell plate.

10. The anti-dew condensation hydraulic module cavity according to claim 2, wherein: The thermal insulation layers provided on the low-temperature side shell plate, the high-temperature side shell plate and the cavity partition plate are rubber foam, polystyrene foam or polyurethane foam.

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