Water temperature linear adjustable power heating device of cooling-water machine
By using temperature sensors and tilt return pipe design in the chiller, combined with the flow sensor, the heating power of the heating rod is accurately adjusted, solving the problems of low water outlet temperature control accuracy and water source loss of the chiller, and improving the temperature control accuracy and Water reflux efficiency.
Patent Information
- Application Number
- CN202421146938.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-24
AI Technical Summary
The water outlet temperature control accuracy of existing chillers is low, and it is impossible to accurately adjust the cooling capacity or heating capacity, resulting in water source loss.
By setting temperature sensor 1 and temperature sensor 2 in the chiller to detect the temperature of the water flowing in and out of the load, and using the inclined design of the return pipe, we ensure that all the return water flows into the return pipe, and calculate the heat generation with the flow sensor. Adjust the heating power of the heating rod to form a closed loop control to accurately adjust the outlet water temperature.
Accurate adjustment of the outlet water temperature is achieved, reducing the loss of water source and improving the temperature control accuracy.
Smart Images
Figure CN222278857U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to chillers, and particularly relates to a power heating device for a chiller that can realize linear adjustable water temperature. Background Art
[0002] A water chiller is a water cooling device that can provide cooling water at a constant temperature, constant flow and constant pressure. A certain amount of water is injected into the water tank inside the machine in advance, and the water is cooled by the chiller's refrigeration system. The low-temperature cooling water is then pumped into the equipment to be cooled by a water pump. The chilled water in the chiller takes away the heat, and then the temperature rises and flows back to the water tank to achieve the cooling effect.
[0003] However, the current chiller outlet water temperature control mostly uses alternate control of the cooling and heating of the compressor circulation system to adjust the water temperature so that the outlet water temperature is stable within a certain range. This control method cannot accurately adjust the cooling capacity or heating capacity, and the temperature control accuracy is generally low, and can only reach ±1°C at most. At the same time, when the device is used, it will cause water loss due to the full return of the return water. To this end, we provide a water chiller to achieve linear adjustable water temperature power heating device to solve the above problems. Utility Model Content
[0004] The purpose of the utility model is to provide a water chiller with a linearly adjustable water temperature power heating device, by which the temperature of the water flowing in and out of the load is detected by temperature sensor 1 and temperature sensor 2, so that the heating power of the heating rod can be accurately adjusted. At the same time, since the return pipe is inclined, the return water can all flow into the return pipe.
[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:
[0006] The utility model is a power heating device for realizing linear adjustable water temperature of a water chiller, comprising a base plate and a water tank fixed on the upper end surface of the base plate; a coil evaporator is fixed on the top surface inside the water tank, an inverted L-shaped plate is fixed on the upper surface of the base plate located on the right side of the water tank, a load is fixed on the upper surface of the inverted L-shaped plate, a water diversion pipe is arranged on the right side of the water tank, a water pump is fixed on the end of the water diversion pipe, a temperature sensor 2 is fixed on the middle position of the water diversion pipe, a return pipe in an inclined state is arranged at the rear of the water diversion pipe, a flow sensor is fixed on the right end of the return pipe, and a temperature sensor 1 is fixed on the end position of the return pipe located on the left side of the flow sensor.
[0007] The utility model is further configured that a heating rod is fixed inside the water tank, the heating rod is located at a lower position inside the water tank, and the heating rod is connected to an external control circuit.
[0008] The utility model is further configured such that the heating rod is located directly below the coil evaporator, and both ends of the coil evaporator pass through the upper end surface of the water tank.
[0009] The utility model is further configured that a water outlet pipe is fixedly connected to the lower portion of the right side of the water tank, and the water outlet pipe is fixedly connected to the water inlet port of the water pump.
[0010] The utility model is further configured that the upper part of the right side of the water tank is fixedly connected with a return pipe, and the return pipe is fixedly connected with the left end face of the return pipe.
[0011] The utility model is further configured such that the right end face of the water diversion pipe is fixedly connected to the water inlet port position of the load, and the right end face of the return pipe is fixedly connected to the water outlet port position of the load.
[0012] The utility model is further arranged that the height of the return pipe is lower than the water inlet port position of the load, and the return pipe is arranged in a state of being lower on the left and higher on the right.
[0013] The utility model has the following beneficial effects:
[0014] 1. When the utility model is in use, the temperature sensor 2 detects the temperature thereof and records the temperature. Therefore, the pumped water will continue to flow into the load, and it will flow from the load into the return pipe. At this time, the temperature sensor 1 in the return pipe detects the temperature of the return water and records the temperature. The flow sensor detects the flow rate of the water in the return pipe, thereby calculating the calorific value of the load, and adjusting the heating power of the heating rod to form a closed-loop control. Therefore, the control and adjustment are gradually and regularly performed, and finally the outlet water temperature is adjusted to the set temperature, thereby realizing the precise adjustment of the cooling capacity or heating capacity.
[0015] 2. When the utility model is in use, since the return pipe is arranged in an inclined state with the left side lower and the right side higher, the water inside the return pipe can flow quickly in the return pipe, so that the return water can all flow into the return pipe, thereby realizing comprehensive reflux and avoiding the loss of water source.
[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0018] Figure 1The schematic diagram is a schematic diagram of a water chiller that realizes a linearly adjustable water temperature power heating device.
[0019] Figure 2 This is the internal structure diagram of the water tank in the utility model.
[0020] Figure 3 It is a structural diagram of the water diversion pipe in the utility model.
[0021] Figure 4 It is the structural diagram of the reflux pipe in the utility model.
[0022] Figure 5 This is the external structure diagram of the water tank in the utility model.
[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0024] 1-base plate, 101-inverted L-shaped plate, 2-water tank, 201-coil evaporator, 202-heating rod, 203-water outlet pipe, 204-water return pipe, 3-load, 4-return pipe, 401-temperature sensor 1, 402-flow sensor, 5-water diversion pipe, 501-temperature sensor 2, 502-water pump. DETAILED DESCRIPTION
[0025] 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 of 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. Specific embodiment 1
[0027] See also Figure 1-5 The utility model is a water chiller that realizes a linearly adjustable water temperature power heating device. The temperature of the water flowing in and out of the load 3 is detected by temperature sensor 1 401 and temperature sensor 2 501, so that the heating power of the heating rod 202 can be accurately adjusted. At the same time, since the return pipe 4 is inclined, the return water can all flow into the return pipe 204.
[0028] Specifically, a bottom plate 1 and a water tank 2 fixed on the upper end surface of the bottom plate 1; a coil evaporator 201 is fixed on the top surface inside the water tank 2, and circulating water is cooled by the coil evaporator 201 used. It can be known that the cooling capacity is a fixed value and cannot be adjusted. An inverted L-shaped plate 101 is fixed on the upper surface of the bottom plate 1 located on the right side of the water tank 2, and a load 3 is fixed on the upper surface of the inverted L-shaped plate 101. A water diversion pipe 5 is arranged on the right side of the water tank 2, a water pump 502 is fixed at the end of the water diversion pipe 5, a temperature sensor 2 501 is fixed at the middle position of the water diversion pipe 5, and a return pipe 4 in an inclined state is arranged at the rear of the water diversion pipe 5, a flow sensor 402 is fixed at the right end of the return pipe 4, and a temperature sensor 1 401 is fixed at the end of the return pipe 4 located on the left side of the flow sensor 402. A heating rod 202 is fixed inside the water tank 2, and the heating rod 202 is located at the lower position inside the water tank 2.
[0029] The operation process of this embodiment is as follows: through the setting and use of the above-mentioned structure, the water inside the water tank 2 is pumped into the water diversion pipe 5 through the water pump 502, so that it passes through the temperature sensor 2 501, and then the temperature sensor 2 501 detects the temperature of it and records the temperature, so the pumped water will continue to flow into the load 3, and after being used by the load 3, it will flow out of the load 3 and flow into the return pipe 4, at this time, the temperature sensor 1 401 in the return pipe 4 detects the temperature of the return water and records the temperature, and the flow rate of the water in the return pipe 4 is detected by the flow sensor 402, thereby the calorific value of the load 3 can be calculated, and the calorific value is compared with the cooling capacity at this time, and the difference obtained is the heating power of the heating rod 202, and through the PID algorithm, the heating power of the heating rod 202 can be adjusted to form a closed-loop control, so that the control and adjustment are gradually and regularly performed, and the outlet water temperature is finally adjusted to the set temperature. Specific embodiment 2
[0031] See also Figure 2 , 5 On the basis of the specific embodiment 1, by connecting and cooperating with the return pipe 4 and the return water pipe 204, the return water can flow back into the water tank 2, so as to facilitate the reuse of the water.
[0032] Specifically, the heating rod 202 is located directly below the coil evaporator 201, and both ends of the coil evaporator 201 pass through the upper end surface of the water tank 2. The heating rod 202 is connected to the external control circuit. The lower part of the right side of the water tank 2 is fixedly connected with a water outlet pipe 203, and the water outlet pipe 203 is fixedly connected to the water inlet port of the water pump 502. The upper part of the right side of the water tank 2 is fixedly connected with a return pipe 204, and the return pipe 204 is fixedly connected to the left end surface of the return pipe 4.
[0033] The operation process of this embodiment is as follows: since the water pump 502 connects the water outlet pipe 203 with the water diversion pipe 5, the water pump 502 can stably pump the water in the water tank 2 into the load 3. At the same time, the return pipe 4 and the return pipe 204 are connected so that the return water in the load 3 can flow back into the water tank 2 from the return pipe 4 and the return pipe 204, thereby facilitating the reuse of water. Specific embodiment three
[0035] See also Figure 2 On the basis of the first specific embodiment, the right end of the return pipe 4 is higher than the height of the return pipe 204 , so that all the return water can flow into the return pipe 204 .
[0036] Specifically, the right end face of the water diversion pipe 5 is fixedly connected to the water inlet port position of the load 3, the right end face of the return pipe 4 is fixedly connected to the water outlet port position of the load 3, the height of the return pipe 204 is lower than the water inlet port position of the load 3, and the return pipe 4 is set in a state of being lower on the left and higher on the right.
[0037] The operation process of this embodiment is as follows: since the return pipe 4 is arranged in an inclined state with the left side lower and the right side higher, the water inside the return pipe 4 can flow quickly in the return pipe 4, so that the return water can all flow into the return pipe 204.
[0038] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0039] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A water chiller with linearly adjustable water temperature and power heating device, comprising a bottom plate (1) and a water tank (2) fixed on the upper end surface of the bottom plate (1); characterized in that: A coil evaporator (201) is fixed to the top surface of the water tank (2), an inverted L-shaped plate (101) is fixed to the upper surface of the bottom plate (1) located on the right side of the water tank (2), a load (3) is fixed to the upper surface of the inverted L-shaped plate (101), a water diversion pipe (5) is arranged on the right side of the water tank (2), a water pump (502) is fixed to the end of the water diversion pipe (5), a second temperature sensor (501) is fixed to the middle of the water diversion pipe (5), a return pipe (4) in an inclined state is arranged at a position behind the water diversion pipe (5), a flow sensor (402) is fixed to the right end of the return pipe (4), and a first temperature sensor (401) is fixed to the end of the return pipe (4) located to the left of the flow sensor (402).
2. A water chiller with linearly adjustable water temperature power heating device according to claim 1, characterized in that: A heating rod (202) is fixed inside the water tank (2), the heating rod (202) is located at the lower part of the water tank (2), and the heating rod (202) is connected to an external control circuit.
3. A water chiller with linearly adjustable water temperature power heating device according to claim 2, characterized in that: The heating rod (202) is located directly below the coil evaporator (201), and both ends of the coil evaporator (201) pass through the upper end surface of the water tank (2).
4. A water chiller with linearly adjustable water temperature power heating device according to claim 1, characterized in that: A water outlet pipe (203) is fixedly connected to the lower portion of the right side of the water tank (2), and the water outlet pipe (203) is fixedly connected to the water inlet port of the water pump (502).
5. A water chiller with linearly adjustable water temperature power heating device according to claim 4, characterized in that: A return water pipe (204) is fixedly connected to the upper portion of the right side surface of the water tank (2), and the return water pipe (204) is fixedly connected to the left end surface of the return flow pipe (4).
6. A water chiller with linearly adjustable water temperature power heating device according to claim 1, characterized in that: The right end surface of the water diversion pipe (5) is fixedly connected to the water inlet port position of the load (3), and the right end surface of the return pipe (4) is fixedly connected to the water outlet port position of the load (3).
7. A water chiller power heating device with linear adjustable water temperature according to claim 5, characterized in that: The height of the water return pipe (204) is lower than the water inlet port position of the load (3), and the return pipe (4) is arranged in a state of being lower on the left and higher on the right.