Constant temperature type heat exchanger

Abstract

The invention discloses a constant temperature type heat exchanger, and relates to the field of heat exchangers, the constant temperature type heat exchanger comprises a device main body, a water inlet of the device main body is connected with a first water storage box, a water outlet of the device main body is connected with a second water storage box, a positioning block is fixed on the inner side of an L-shaped clamping block, and the positioning block is in sliding connection with a first positioning groove; a first telescopic groove is formed in the top of the L-shaped clamping block in a penetrating mode, a pull rod is slidably arranged in the first telescopic groove in a penetrating mode, and a clamping block is fixed to the bottom end of the pull rod. According to the constant-temperature type heat exchanger, the heat preservation cover and the heat preservation plate can reduce the temperature reduction efficiency of the heat exchanger through heat preservation materials of the heat preservation cover and the heat preservation plate, water in the first connecting pipe and water in the second connecting pipe do not exchange heat through the device body, and heat can be transferred to residual water in the device body; and when the guide cylinder is fixed, the flange can extend the length of the double-end connector, so that the double-end connector is convenient to assemble.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchangers, in particular to a constant temperature heat exchanger. Background Art

[0002] Heat exchangers are used to transfer heat from hot fluid to cold fluid to meet specific process requirements. Specifically, they enable two fluids at different temperatures to exchange heat, thereby achieving the purpose of heating or cooling. The constant temperature type is to ensure the stability of the water temperature and keep the temperature as unchanged as possible.

[0003] At present, the heat exchanger still has some shortcomings, such as the lack of constant temperature effect: In order to overcome the problem that the heat exchanger does not have a constant temperature effect, the Chinese patent of the prior art (publication number: CN108627036B) discloses a plate heat exchanger with a constant temperature function. A water storage cavity is added on the basis of the existing plate heat exchanger, and the water storage tank and the plate heat exchanger are integrated. While retaining the basic heat exchange function of the original plate heat exchanger, it can also play the role of water storage, and can also alleviate the temperature fluctuation of domestic hot water, and achieve zero temperature fluctuation of domestic hot water; reduce costs and expand the function of plate heat exchange; In addition, a Chinese patent of the prior art (publication number: CN219776436U) discloses a heat exchanger for an electric constant temperature drying oven, which can efficiently exchange heat and filter toxic gases, etc. The heat exchange process can effectively utilize resources and reduce waste, and can achieve the effect of flexible adjustment of the position of the electric constant temperature drying oven, and can prevent freezing when the heat exchanger stops running for a long time in cold areas.

[0004] However, the heat exchangers currently used still have certain shortcomings. The above-mentioned documents improve the constant temperature performance by fully mixing the water temperature when the water flows, but the scope and strength of the protection are still relatively small. There is usually residual water inside the water pipes, and the temperature will drop rapidly over time. The effect on temperature improvement is limited, and the constant temperature effect has certain shortcomings. Therefore, it is necessary to improve the existing structure. Summary of the invention

[0005] The object of the present invention is to provide a constant temperature heat exchanger to solve the problems mentioned in the above background technology that the heat exchanger has poor thermal insulation effect, the cold water remaining inside the body of the heat exchanger easily affects the user experience, and the heat exchanger assembly is inconvenient to assemble.

[0006] To achieve the above object, the present invention provides the following technical solution: a constant temperature heat exchanger, comprising a device body, a water inlet of the device body is connected to a first water storage box, and a water outlet of the device body is connected to a second water storage box: One side of the device body is connected to a heat preservation cover, and the other side of the device body is connected to a first water storage box. The first water storage box and the second water storage box are made of heat preservation material. A slot is provided on the side of the heat preservation cover close to the heat preservation board. An insert block slides through the slot. The insert block is fixed on the side of the heat preservation board close to the heat preservation cover. A heat preservation mechanism is provided on the side of the device body to improve the constant temperature effect of the exchanger. The device body and the side of the first water storage box are both fixed with external blocks, the internal parts of the external blocks are respectively connected with a first connecting pipe and a second connecting pipe, the top end of the first connecting pipe is connected with one end of a double-headed connector, the other end of the double-headed connector is connected to the water inlet of the first water storage box, and a connecting mechanism for improving the effect of the heat preservation mechanism is arranged inside the external block; A telescopic tube is connected between the double-headed connector and the flange, a guide cylinder is slidably connected through the surface of the double-headed connector, the guide cylinder is fixed to the flange side of the double-headed connector, and an extension mechanism for improving the assembly efficiency of the exchanger is arranged on the surface of the double-headed connector.

[0007] Furthermore, the heat preservation mechanism includes a connecting groove, which is opened on the side of the heat preservation plate and the slot, and the connecting groove, the plug block and the slot are provided in multiple groups.

[0008] Furthermore, a first positioning groove is provided on the inner side of the connecting groove of the heat-insulating plate, a locking groove is provided on the inner side of the connecting groove of the heat-insulating cover, and an L-shaped clamping block is connected inside the connecting groove.

[0009] Furthermore, a positioning block is fixed inside the L-shaped block, the positioning block is slidably connected to the first positioning slot, a first telescopic slot is penetrated through the top of the L-shaped block, and a pull rod slides through the inside of the first telescopic slot.

[0010] Furthermore, a clamping block is fixed at the bottom end of the pull rod, a spring is telescopically connected between the clamping block and the first telescopic slot, and the clamping block and the clamping slot are in a clamping connection.

[0011] Furthermore, the connection mechanism includes a through hole, which is opened through a side of the flange of the second connecting pipe, and a fixing block is fixed to a side of the flange of the first connecting pipe close to the second connecting pipe.

[0012] Furthermore, the fixed block and the through holes are each provided with five groups, a second telescopic groove is opened on the side of the fixed block, a telescopic block slides through the inside of the second telescopic groove, and a spring is connected between the telescopic block and the fixed block.

[0013] Furthermore, a movable groove is provided at the top of the telescopic block, a push block slides through the movable groove, a second positioning groove is provided inside the second telescopic groove, and the second positioning groove is snap-fittedly connected to the push block.

[0014] Furthermore, the extension mechanism includes a limit groove, which is opened on both sides of the guide cylinder, and a threaded block and a limit block are respectively slid through the inside of the limit groove, and the threaded block and the limit block are both fixed on the side of the double-head connector, and a nut is threadedly connected to the surface of the threaded block.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The constant temperature heat exchanger, the heat preservation cover and the heat preservation plate can reduce the efficiency of the heat exchanger temperature reduction through their own heat preservation materials. The water inside the first connecting pipe and the second connecting pipe does not exchange heat through the main body of the heat exchanger. The heat will be transferred to the residual water inside the main body of the heat exchanger to prevent the residual water in the main body from cooling too quickly and affecting the use experience. When the guide cylinder is fixed, the flange can extend the length of the double-head connector to facilitate assembly; 2. An insert block is provided, which can improve the connection stability between the insulation cover and the insulation board and provide a guiding function, thereby improving the convenience of use; 3. A positioning block and a locking block are provided, and the positioning of the positioning block and the locking block can drive the thermal insulation cover and the thermal insulation board to be positioned. Since the locking block is spring-operated, the efficiency and convenience of connecting the thermal insulation cover and the thermal insulation board are improved; 4. A double-ended connector is provided, through which the hot water can be diverted into two streams, one for heat exchange, and the other for increasing the heat of the insulation cover and the insulation board. When the heat exchanger is not in use, it can slow down the cooling speed of the residual water inside the heat exchanger body, thereby improving the constant temperature effect; 5. A telescopic tube is provided, through which the connecting end of the double-headed connector can be extended, so that the double-headed connector can be better installed and connected, ensuring the connection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall front-view stereoscopic structure of the present invention; Figure 2 It is a schematic diagram of the overall rear-view stereoscopic structure of the present invention; Figure 3 It is a schematic diagram of the enlarged three-dimensional structure of the main body of the device of the present invention; Figure 4 This is a schematic diagram of the cross-sectional three-dimensional structure of the L-shaped card block of the present invention; Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the external connection block of the present invention; Figure 6 This is an enlarged three-dimensional structural schematic diagram of the fixing block of the present invention; Figure 7 It is a schematic diagram of the cross-sectional three-dimensional structure of the fixing block of the present invention; Figure 8 This is an enlarged three-dimensional structural schematic diagram of the push block of the present invention; Fig. 9 It is a schematic diagram of an enlarged sectional view of the three-dimensional structure of the double-head connector of the present invention; Fig.10 It is a schematic diagram of the enlarged three-dimensional structure of the telescopic tube of the present invention.

[0017] In the figure: 1, device body; 2, first water storage box; 3, second water storage box; 101, insulation cover; 102, insulation board; 103, slot; 104, plug block; 105, connecting groove; 106, first positioning groove; 107, engaging groove; 108, L-shaped block; 109, positioning block; 110, first telescopic groove; 111, pull rod; 112, engaging block; 113, external block; 114, first connecting pipe; 115, second connecting pipe; 116, double-head connector; 118, through hole; 119, fixed block; 120, second telescopic groove; 121, telescopic block; 122, movable groove; 123, push block; 124, second positioning groove; 125, telescopic tube; 126, guide cylinder; 127, limit groove; 128, threaded block; 129, limit block; 130, nut. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1: Figure 1-Figure 4 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the heat exchanger has a poor heat preservation effect and the cold water remaining inside the body 1 of the heat exchanger easily affects the user experience, a heat preservation mechanism is disclosed: The invention comprises a device body 1, a water inlet of the device body 1 is connected to a first water storage box 2, a water outlet of the device body 1 is connected to a second water storage box 3, a heat preservation cover 101 is connected to one side of the device body 1, and the other side of the device body 1 is connected to the first water storage box 2, the first water storage box 2 and the second water storage box 3 are made of heat preservation material, a slot 103 is provided on the side of the heat preservation cover 101 close to the heat preservation board 102, an insert block 104 is inserted and slidably penetrated inside the slot 103, and the insert block 104 is fixed on the side of the heat preservation board 102 close to the heat preservation cover 101, and a lifting device is provided on the side of the device body 1 The heat preservation mechanism of the high exchanger constant temperature effect, the side of the device body 1 and the first water storage box 2 are fixed with an external block 113, the internal of the external block 113 is respectively connected with a first connecting pipe 114 and a second connecting pipe 115, the top end of the first connecting pipe 114 is connected to one end of a double-headed connector 116, and the other end of the double-headed connector 116 is connected to the water inlet of the first water storage box 2, and a connecting mechanism for improving the heat preservation mechanism effect is arranged inside the external block 113, and a telescopic pipe 125 is connected between the double-headed connector 116 and the flange, and the double-headed connector 1 The surface of the double-ended connector 116 is slidably connected with a guide cylinder 126, which is fixed to the flange side of the double-ended connector 116. The double-ended connector 116 is provided with an extension mechanism to improve the assembly efficiency of the exchanger. The heat preservation mechanism includes a connecting groove 105, which is provided on the side of the heat preservation plate 102 and the slot 103. The connecting groove 105, the plug block 104 and the slot 103 are provided with multiple groups. The inner side of the connecting groove 105 of the heat preservation plate 102 is provided with a first positioning groove 106, and the inner side of the connecting groove 105 of the heat preservation cover 101 is provided with a first positioning groove 106. A snap-fitting groove 107 is provided, an L-shaped block 108 is connected inside the connecting groove 105, a positioning block 109 is fixed inside the L-shaped block 108, the positioning block 109 is slidably connected to the first positioning groove 106, a first telescopic groove 110 is penetrated through the top of the L-shaped block 108, a pull rod 111 is slidably penetrated inside the first telescopic groove 110, a snap-fitting block 112 is fixed to the bottom end of the pull rod 111, a spring is telescopically connected between the snap-fitting block 112 and the first telescopic groove 110, and the snap-fitting block 112 is snap-fitted to the snap-fitting groove 107; When the heat exchanger is in use, the hot water will be transported to the inside of the first water storage box 2 through the double-headed connector 116, the first water storage box 2 will transfer heat through the device body 1, and then the transferred water will be transported to the inside of the second water storage box 3 through the pipe, and then transported out by the second water storage box 3 for use, which can help the water to remain at the required temperature. Since there will be residual water in the device body 1 when the exchanger is not in use, the residual water cools down relatively quickly. When it is used next time, the cold water in the exchanger will flow out first before hot water can be available, which affects the use efficiency. In order to ensure the constant temperature of the heat exchanger and reduce the speed of water temperature drop, it is necessary to add a heat preservation mechanism to the outside of the device body 1, move the device body 1 to the inside of the heat preservation cover 101 and fix it with bolts, and then move the heat preservation plate 102 to the side of the heat preservation cover 101 for fitting. When fitting, the heat preservation plate 102 can drive the plug 104 to be inserted into the slot 103 for positioning. At this time, the two connecting grooves 105 will merge together to form an L shape, and pulling the pull rod 111 can drive the locking block 112 to move. When the engaging block 112 moves, it can slide through the first telescopic slot 110. When the engaging block 112 slides, it can squeeze the spring. When the engaging block 112 is squeezed into the first telescopic slot 110, the L-shaped engaging block 108 is moved. When the L-shaped engaging block 108 moves, it can drive the positioning block 109 to be inserted into the first positioning slot 106. At this time, the engaging block 112 can move to the side of the engaging slot 107. When the pull rod 111 is released, the engaging block 112 can be pushed to reset by the elastic force of the spring itself. When the engaging block 112 is reset, Insert it into the locking groove 107 for locking and positioning. When the locking block 112 is positioned, it can drive the L-shaped block 108 to be positioned, and fix other groups of L-shaped blocks 108 in the same way. The L-shaped block 108 can drive the insulation cover 101 and the insulation board 102 to be positioned and connected. When the insulation cover 101 and the insulation board 102 are connected, they can wrap the device body 1. The insulation cover 101 and the insulation board 102 can reduce the efficiency of lowering the temperature of the heat exchanger through their own insulation materials, thereby improving the constant temperature effect of the exchanger.

[0020] Embodiment 2: Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 ,and Figure 8 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the heat preservation effect of the heat preservation mechanism of the heat exchanger may be insufficient, on the basis of the first embodiment, a connecting mechanism is disclosed: The connecting mechanism includes a through hole 118, which is opened through the side of the flange of the second connecting pipe 115. A fixed block 119 is fixed to the side of the flange of the first connecting pipe 114 close to the second connecting pipe 115. Five groups of the fixed blocks 119 and the through holes 118 are provided. A second telescopic groove 120 is opened on the side of the fixed block 119. A telescopic block 121 slides through the inside of the second telescopic groove 120. A spring is connected between the telescopic block 121 and the fixed block 119. A movable groove 122 is opened at the top of the telescopic block 121. A push block 123 slides through the inside of the movable groove 122. A second positioning groove 124 is opened on the inside of the second telescopic groove 120. The second positioning groove 124 and the push block 123 are connected in a snap-fit ​​manner. When the heat preservation mechanism is in use, the heat preservation cover 101 and the heat preservation board 102 will be connected together. When connected together, the external block 113 can drive the water outlet of the first connecting pipe 114 to move to the end of the water inlet of the second connecting pipe 115. When the first connecting pipe 114 moves, it can drive the fixed block 119 to insert into the through hole 118. When the fixed block 119 is inserted, it can drive the telescopic block 121 to move. When the inclined surface of the telescopic block 121 moves to the inside of the through hole 118, it can be squeezed. When the telescopic block 121 is squeezed, it can slide through the second telescopic groove 120. When the telescopic block 121 slides, it can squeeze the spring. When the telescopic block 121 is squeezed into the second telescopic groove 120, the fixed block 119 can pass through the through hole 118, at this time, the telescopic block 121 can be moved out of the through hole 118, and the telescopic block 121 can be reset by the spring force. When the telescopic block 121 is reset, it can move to the side of the flange of the second connecting pipe 115 for positioning. When the telescopic block 121 is positioned, it can drive the first connecting pipe 114 to connect with the second connecting pipe 115. In the same way, the first connecting pipe 114, the second connecting pipe 115, and the double-headed connector 116 are connected to the port of the first water storage box 2. When it is necessary to disassemble later, the reverse operation steps are reversed, and the telescopic block 121 is pressed into the second telescopic groove 120 again. The telescopic block 121 can drive the push block 123 to move to the side of the second positioning groove 124, and the push block 123 is pushed by hand. 3 can slide through the movable groove 122, and the push block 123 can be positioned when it slides into the second positioning groove 124. Through the thrust of the spring on the telescopic block 121, the push block 123 can generate friction with the movable groove 122 and the second positioning groove 124, thereby preventing the push block 123 from loosening and disengaging from the second positioning groove 124, which is convenient for the later disassembly and maintenance of the heat exchanger. When the heat exchanger is in use, hot water can flow into the first water storage box 2 and the first connecting pipe 114 respectively through the double-headed connector 116, and the water in the first water storage box 2 will be transported to the inside of the device body 1 for heat exchange, and the hot water in the first connecting pipe 114 will be transported to the inside of the second connecting pipe 115, and then through the second connecting pipe 11 5 will not cause waste when being transported to the inside of the first water storage box 2. Since the water transported to the inside of the first connecting pipe 114 and the second connecting pipe 115 does not undergo heat exchange with the device body 1, the temperature of the first connecting pipe 114 and the second connecting pipe 115 will be relatively high. The higher heat will be transferred to the heat preservation cover 101 and the heat preservation board 102 through the external block 113. Since the external block 113, the heat preservation cover 101 and the heat preservation board 102 are made of heat preservation materials, the heat is dissipated relatively slowly. When the exchanger stops using, the heat of the heat preservation cover 101 and the heat preservation board 102 will be transferred to the residual water in the device body 1, preventing the residual water in the device body 1 from cooling too fast and affecting the user experience, thereby further improving the constant temperature effect of the heat exchanger.

[0021] Embodiment 3: Figure 1 , Figure 2 , Figure 3 , Fig. 9 and Fig.10 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the heat exchanger double-ended connector 116 has a height difference with other pipes and is troublesome to assemble, an extension mechanism is disclosed: The extension mechanism includes a limit groove 127, which is formed on both sides of the guide cylinder 126. A threaded block 128 and a limit block 129 are respectively slidably passed through the limit groove 127. The threaded block 128 and the limit block 129 are fixed to the side of the double-head connector 116. The surface of the threaded block 128 is threadedly connected with a nut 130. Before the heat exchanger is used, the double-headed connector 116 needs to be assembled. Before the double-headed connector 116 is assembled, the flange of the interface can be pulled, and the flange can drive the guide cylinder 126 to move. When the guide cylinder 126 moves, it can slide through the double-headed connector 116. At the same time, the guide cylinder 126 can drive the limit groove 127 to move. When the limit groove 127 moves, it can slide through the threaded block 128 and the limit block 129 respectively. When the guide cylinder 126 slides, the double-headed connector 116 can stretch the telescopic tube 125. After the flange is stretched to a certain position, the nut 130 is moved to the end of the threaded block 128 for rotation. When the nut 130 rotates, it can slide through the threaded block 128. When the nut 130 slides to the side of the guide cylinder 126, it can be squeezed. When the guide cylinder 126 is squeezed, it can be fixed to the double-headed connector 116. When the guide cylinder 126 is fixed, the flange can extend the length of the double-headed connector 116. When the double-headed connector 116 is extended, it is convenient to assemble and connect, thereby improving the assembly efficiency of the double-headed connector 116 of the heat exchanger.

[0022] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A constant temperature heat exchanger, comprising a device body (1), wherein a water inlet of the device body (1) is connected to a first water storage box (2), and a water outlet of the device body (1) is connected to a second water storage box (3), characterized in that: One side of the device body (1) is connected to a heat preservation cover (101), and the other side of the device body (1) is connected to a first water storage box (2); the first water storage box (2) and the second water storage box (3) are made of heat preservation material; a slot (103) is provided on the side of the heat preservation cover (101) close to the heat preservation plate (102); an insert block (104) is slidably inserted into the slot (103); the insert block (104) is fixed to the side of the heat preservation plate (102) close to the heat preservation cover (101); and a heat preservation mechanism for improving the constant temperature effect of the exchanger is provided on the side of the device body (1); An external connection block (113) is fixed to the side of the device body (1) and the first water storage box (2); a first connection pipe (114) and a second connection pipe (115) are respectively connected inside the external connection block (113); a top end of the first connection pipe (114) is connected to one end of a double-headed connector (116); the other end of the double-headed connector (116) is connected to the water inlet of the first water storage box (2); and a connection mechanism for improving the effect of the heat preservation mechanism is arranged inside the external connection block (113); A telescopic tube (125) is connected between the double-headed connector (116) and the flange; a guide cylinder (126) is slidably connected through the surface of the double-headed connector (116); the guide cylinder (126) is fixed to the flange side of the double-headed connector (116); and an extension mechanism for improving the assembly efficiency of the exchanger is provided on the surface of the double-headed connector (116).

2. A constant temperature heat exchanger according to claim 1, characterized in that: The heat preservation mechanism comprises a connection groove (105), wherein the connection groove (105) is provided on the side of the heat preservation plate (102) and the slot (103), and multiple groups of the connection groove (105), the insert block (104) and the slot (103) are provided.

3. A constant temperature heat exchanger according to claim 2, characterized in that: A first positioning groove (106) is provided inside the connection groove (105) of the insulation plate (102), a locking groove (107) is provided inside the connection groove (105) of the insulation cover (101), and an L-shaped clamping block (108) is connected inside the connection groove (105).

4. A constant temperature heat exchanger according to claim 3, characterized in that: A positioning block (109) is fixed inside the L-shaped block (108), and the positioning block (109) is slidably connected to the first positioning slot (106). A first telescopic slot (110) is provided through the top of the L-shaped block (108), and a pull rod (111) is slidably provided inside the first telescopic slot (110).

5. A constant temperature heat exchanger according to claim 4, characterized in that: A locking block (112) is fixed to the bottom end of the pull rod (111), a spring is telescopically connected between the locking block (112) and the first telescopic slot (110), and the locking block (112) and the locking slot (107) are in a locking connection.

6. A constant temperature heat exchanger according to claim 1, characterized in that: The connection mechanism comprises a through hole (118), the through hole (118) being opened through the side of the flange of the second connection pipe (115), and a fixing block (119) is fixed to a side of the flange of the first connection pipe (114) close to the second connection pipe (115).

7. A constant temperature heat exchanger according to claim 6, characterized in that: The fixed block (119) and the through holes (118) are each provided with five groups, a second telescopic groove (120) is provided on the side of the fixed block (119), a telescopic block (121) slides through the inside of the second telescopic groove (120), and a spring is connected between the telescopic block (121) and the fixed block (119).

8. A constant temperature heat exchanger according to claim 7, characterized in that: A movable groove (122) is provided at the top of the telescopic block (121), a push block (123) is slidably penetrated inside the movable groove (122), a second positioning groove (124) is provided inside the second telescopic groove (120), and the second positioning groove (124) is snap-fittedly connected to the push block (123).

9. The isothermal heat exchanger according to claim 1, characterized in that: The extension mechanism comprises a limit groove (127), the limit groove (127) is formed through both sides of the guide cylinder (126), a threaded block (128) and a limit block (129) are respectively slidably passed through the limit groove (127), the threaded block (128) and the limit block (129) are both fixed to the side of the double-head connector (116), and a nut (130) is threadedly connected to the surface of the threaded block (128).

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