Central air conditioning system terminal water supply temperature difference control energy-saving device

Abstract

The utility model discloses a central air conditioning system terminal water supply temperature difference control energy -conserving device, including the flow valve of setting in the central air conditioning system return water pipeline middle, one end of flow valve is equipped with the installation pipe, and temperature sensor is installed on the installation pipe, and the outside installation of first connecting flange, second connecting flan and third connecting flan has the locking mechanism that will return water pipeline, installation pipe and flow valve are connected together. The utility model discloses simple structure can detect the water temperature when returning through temperature sensor, and after reaching 15, the opening of flow valve is controlled, thereby reaches the maximum release cold quantity, and the utilization rate is increased, and the waste of energy is also reduced, and can quickly fix together return water pipeline, installation pipe and flow valve, and the use number of bolt and nut is reduced.

Description

Technical Field

[0001] This utility model relates to an energy-saving device for controlling the temperature difference of the water supply at the terminal of a central air conditioning system. Background Technology

[0002] A water-cooled central air conditioning system is a large-scale air conditioning system that uses water as the cooling medium, primarily used in commercial buildings, industrial facilities, or large residential buildings. Its core principle is to remove heat through water circulation, thereby achieving cooling or heating.

[0003] Currently, in water-cooled central air conditioning systems, after water is cooled, the water enters the terminal fans through the water inlet management system, is discharged from the fans, and then flows back to the cooling system through the return water pipe. However, the current return water management system lacks a control device, which causes the chilled water entering the fans to be discharged before it is fully utilized, affecting its utilization rate and energy-saving effect. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an energy-saving device for controlling the temperature difference of the water supply at the terminal of a central air conditioning system, which can control the return flow to achieve maximum release of cooling capacity, thereby solving the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: a central air conditioning system terminal water supply temperature difference control energy-saving device, including a flow valve installed in the middle of the return water pipeline of the central air conditioning system. One end of the flow valve is provided with an installation pipe, and a temperature sensor is installed on the installation pipe. The detection end of the temperature sensor extends into the interior of the installation pipe. Both ends of the installation pipe are provided with first connecting flanges. The first connecting flange on one side abuts against the second connecting flange at one end of the flow valve, and the first connecting flange on the other side abuts against the third connecting flange on the return water pipeline. The second connecting flange at the other end of the flow valve abuts against the third connecting flange on the other side of the return water pipeline. The first connecting flange, the second connecting flange, and the third connecting flange are provided with a locking mechanism that connects the return water pipeline, the installation pipe, and the flow valve together.

[0006] As a preferred technical solution, the locking mechanism includes multiple fixing rods and multiple fixing rings. Multiple fixing grooves are provided on the outer ring surfaces of the first connecting flange, the second connecting flange, and the third connecting flange. The fixing rods are all set in the horizontally opposite fixing grooves. Both ends of the fixing rods protrude to form positioning parts. The opposite end faces of the positioning parts are in contact with the outer end face of the third connecting flange. The contact points between the positioning parts and the fixing rods are provided with pressure grooves. The fixing rings are all fitted into the pressure grooves distributed in a ring structure.

[0007] As a preferred technical solution, the fixing ring is divided into two halves in the middle, and the pressure groove is set in a triangular structure. The inner ring of the half ring is also set in a triangular structure. The inner ring of the half ring is inserted into the pressure groove and presses inward to connect the return water pipe, installation pipe and flow valve. Both ends of the half ring are bent outward to form a fixing part, and the fixing part is provided with a fixing hole.

[0008] As a preferred technical solution, a first parallel surface is provided on the inner ring surface of the fixing groove, and a second parallel surface is provided on one side of the fixing rod, with the second parallel surface fitting against the first parallel surface.

[0009] As a preferred technical solution, multiple fixing rods are distributed in a ring structure on the outside of the flow valve.

[0010] As a preferred technical solution, the flow valve is an electric flow regulating valve and is electrically connected to the temperature sensor.

[0011] As a preferred technical solution, the installation pipe, return water pipe and flow valve are connected.

[0012] The beneficial effects of this utility model are: This utility model has a simple structure. It can detect the water temperature during the return flow through a temperature sensor. After reaching 15°C, it controls the opening of the flow valve to maximize the release of cold energy, increase the utilization rate, and reduce energy waste. In addition, it can quickly fix the return water pipe, installation pipe and flow valve together, reduce the number of bolts and nuts used, and facilitate installation and disassembly operations. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0015] Figure 2 This is a side view of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of this utility model after disassembling multiple fixing rods;

[0017] Figure 4 This is a schematic diagram of the structure of the fixing rod of this utility model.

[0018] Among them, 1. Flow valve; 2. Installation pipe; 3. Return water pipe; 4. Second connecting flange; 5. First connecting flange; 6. Third connecting flange; 7. Fixing groove; 8. Positioning part; 9. Half ring; 10. Fixing part; 11. Temperature sensor; 12. Fixing rod; 13. Pressure groove; 14. First parallel surface; 15. Second parallel surface. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0021] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses an energy-saving device for controlling the temperature difference of the terminal water supply in a central air conditioning system. Its features include: a flow valve 1 disposed in the middle of the return water pipe 3 of the central air conditioning system; an installation pipe 2 at one end of the flow valve 1; a temperature sensor 11 installed on the installation pipe 2; the detection end of the temperature sensor 11 extending into the interior of the installation pipe 2; first connecting flanges 5 installed at both ends of the installation pipe 2; one side of the first connecting flange 5 abutting against a second connecting flange 4 at one end of the flow valve 1; the other side of the first connecting flange 5 abutting against a third connecting flange 6 on the return water pipe; the other end of the flow valve 1's second connecting flange 4 abutting against a third connecting flange 6 on the other side of the return water pipe 3; and a locking mechanism connecting the return water pipe 3, the installation pipe 2, and the flow valve 1 together is installed on the outside of the first connecting flange 5, the second connecting flange 4, and the third connecting flange 6.

[0023] In this embodiment, the locking mechanism includes multiple fixing rods 12 and multiple fixing rings. Multiple fixing grooves 7 are provided on the outer ring surfaces of the first connecting flange 5, the second connecting flange 4 and the third connecting flange 6. The fixing rods 12 are all disposed in the horizontally opposite fixing grooves 7. Both ends of the fixing rods 12 protrude to form positioning parts 8. The opposite end faces of the positioning parts 8 are in contact with the outer end face of the third connecting flange 6. The contact points between the positioning parts 8 and the fixing rods 12 are provided with pressure grooves 13. The fixing rings are all sleeved in the pressure grooves 13 which are distributed in a ring structure.

[0024] In this embodiment, each fixing ring is divided into two halves 9 in the middle. The pressure grooves 13 are all triangular in structure, and the inner rings of the halves 9 are also triangular in structure. The inner rings of the halves 9 are inserted into the pressure grooves 13 and pressed inward to connect the return water pipe 3, the installation pipe 2 and the flow valve 1. Both ends of the halves 9 are bent outward to form fixing parts 10, and fixing holes are provided on the fixing parts 10.

[0025] The bolts can pass through the corresponding fixing holes and are threaded with nuts. The bolts and nuts can lock the fixing parts together.

[0026] In this embodiment, a first parallel surface 14 is provided on the inner ring surface of the fixing groove 7, and a second parallel surface 15 is provided on one side of the fixing rod 12. The second parallel surface 15 is fitted with the first parallel surface 14. The fixing rod can be positioned by the first parallel surface and the second parallel surface, avoiding the circumferential rotation of the fixing rod, so as to ensure that the pressure groove can face the outside.

[0027] In this embodiment, multiple fixing rods 12 are arranged in a ring structure on the outside of the flow valve 1. The multiple fixing rods can protect the valve body of the flow valve, reduce the probability of direct impact, and increase safety.

[0028] In this embodiment, the flow valve 1 is an electric flow regulating valve and is electrically connected to the temperature sensor 11; the installation pipe 2, the return water pipe 3 and the flow valve 1 are connected so that the water flowing back from the return water pipe can enter the installation pipe and come into contact with the temperature sensor.

[0029] The temperature sensor can detect the temperature of the return water and transmit it to the microcontroller to determine whether it has reached the set threshold. Once it reaches 15°C, the microcontroller can control the electric flow regulating valve to open automatically, so as to complete the water return operation. This method can fully release the internal cold energy and increase the utilization rate.

[0030] The return water pipe is a flexible hose. During installation, the installation pipe and flow valve are placed between the return water pipes on both sides, and the fixing rod is inserted into the horizontally opposite fixing groove. The positioning parts at both ends can squeeze the third connecting flange inward and press the installation pipe and flow valve inward. The fixing rod completes the precise alignment between the return water pipe, installation pipe and flow valve.

[0031] The semi-rings can be brought closer together and inserted into the pressure groove. The closer semi-rings can further compress the third connecting flange, which can quickly fix the return water pipe, installation pipe and flow valve together. The connection between the semi-rings can be completed with four sets of bolts and nuts, reducing the number of bolts and nuts used and increasing the efficiency of installation and subsequent disassembly.

[0032] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. An energy-saving device for controlling the temperature difference of water supply at the terminal of a central air conditioning system, characterized in that: The system includes a flow valve (1) installed in the middle of the return water pipe (3) of the central air conditioning system. One end of the flow valve (1) is provided with an installation pipe (2). A temperature sensor (11) is installed on the installation pipe (2). The detection end of the temperature sensor (11) extends into the interior of the installation pipe (2). Both ends of the installation pipe (2) are provided with first connecting flanges (5). One side of the first connecting flange (5) abuts against the second connecting flange (4) at one end of the flow valve (1). The other side of the first connecting flange (5) abuts against the third connecting flange (6) on the return water pipe. The other side of the flow valve (1) has a second connecting flange (4) abutting against the third connecting flange (6) on the other side of the return water pipe (3). The first connecting flange (5), the second connecting flange (4), and the third connecting flange (6) are provided with a locking mechanism that connects the return water pipe (3), the installation pipe (2), and the flow valve (1) together.

2. The energy-saving device for controlling the temperature difference of water supply at the terminal of a central air conditioning system according to claim 1, characterized in that: The locking mechanism includes multiple fixing rods (12) and multiple fixing rings. Multiple fixing grooves (7) are provided on the outer ring surfaces of the first connecting flange (5), the second connecting flange (4) and the third connecting flange (6). The fixing rods (12) are all set in the horizontally opposite fixing grooves (7). Both ends of the fixing rods (12) protrude to form positioning parts (8). The opposite end faces of the positioning parts (8) are in contact with the outer end face of the third connecting flange (6). The contact points between the positioning parts (8) and the fixing rods (12) are provided with pressure grooves (13). The fixing rings are all fitted in the pressure grooves (13) which are distributed in a ring structure.

3. The energy-saving device for controlling the temperature difference of water supply at the terminal of a central air conditioning system according to claim 2, characterized in that: The fixing ring is divided into two halves (9) in the middle. The pressure groove (13) is set in a triangular structure. The inner ring of the half ring (9) is also set in a triangular structure. The inner ring of the half ring (9) is inserted into the pressure groove (13) and pressed inward to connect the return water pipe (3), the installation pipe (2) and the flow valve (1). Both ends of the half ring (9) are bent outward to form a fixing part (10). The fixing part (10) is provided with fixing holes.

4. The energy-saving device for controlling the temperature difference of water supply at the terminal of a central air conditioning system according to claim 2, characterized in that: The inner ring surface of the fixing groove (7) is provided with a first parallel surface (14), and the side of the fixing rod (12) is provided with a second parallel surface (15). The second parallel surface (15) is fitted to the first parallel surface (14).

5. The energy-saving device for controlling the temperature difference of water supply at the terminal of a central air conditioning system according to claim 2, characterized in that: Multiple fixed rods (12) are arranged in a ring structure on the outside of the flow valve (1).

6. The energy-saving device for controlling the temperature difference of water supply at the terminal of a central air conditioning system according to claim 1, characterized in that: The flow valve (1) is an electric flow regulating valve and is electrically connected to the temperature sensor (11).

7. The energy-saving device for controlling the temperature difference of water supply at the terminal of a central air conditioning system according to claim 1, characterized in that: The installation pipe (2), the return water pipe (3) and the flow valve (1) are connected.

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